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Jack Robison 2022-03-08 11:01:19 -05:00
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/.idea
/.DS_Store
/build
/dist
/.tox
/.coverage*
/venv
scribe.egg-info
__pycache__
/tests/.coverage.*
/.vscode
/.gitignore
.*pyc

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Scribe maintains a rocksdb database containing the [LBRY blockchain](https://github.com/lbryio/lbrycrd) and provides an interface for python based services that utilize the blockchain data in an ongoing manner. Scribe includes implementations of this interface to provide an electrum server for thin-wallet clients such as lbry-sdk and to maintain an elasticsearch database of claims in the LBRY blockchain.
* Uses Python 3.7-3.8
* Protobuf schema for encoding and decoding metadata stored on the blockchain ([scribe.schema](https://github.com/lbryio/scribe/tree/master/scribe/schema)).
* Blockchain processor that maintains an up to date rocksdb database ([scribe.blockchain](https://github.com/lbryio/scribe/tree/master/scribe/blockchain))
* Rocksdb based database containing the blockchain data ([scribe.db]((https://github.com/lbryio/scribe/tree/master/scribe/db)))
* Interface for python services to implement in order for them maintain a read only view of the blockchain data ([scribe.readers.interface]((https://github.com/lbryio/scribe/tree/master/scribe/db)))
* Electrum based server for thin-wallet clients like lbry-sdk ([scribe.readers.hub_server]((https://github.com/lbryio/scribe/tree/master/scribe/db)))
* Elasticsearch sync utility to index all the claim metadata in the blockchain into an easily searchable form ([scribe.readers.elastic_sync]((https://github.com/lbryio/scribe/tree/master/scribe/db)))
## Installation
Our [releases page](https://github.com/lbryio/scribe/releases) contains pre-built binaries of the latest release, pre-releases, and past releases for macOS and Debian-based Linux.
Prebuilt [docker images](https://hub.docker.com/r/lbry/scribe/latest-release) are also available.
## Usage
## Running from source
Installing from source is also relatively painless. Full instructions are in [INSTALL.md](INSTALL.md)
## Contributing
Contributions to this project are welcome, encouraged, and compensated. For more details, please check [this](https://lbry.tech/contribute) link.
## License
This project is MIT licensed. For the full license, see [LICENSE](LICENSE).
## Security
We take security seriously. Please contact security@lbry.com regarding any security issues. [Our PGP key is here](https://lbry.com/faq/pgp-key) if you need it.
## Contact
The primary contact for this project is [@jackrobison](mailto:jackrobison@lbry.com).

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__version__ = "0.107.0"
PROMETHEUS_NAMESPACE = "scribe"
PROTOCOL_MIN = (0, 54, 0)
PROTOCOL_MAX = (0, 199, 0)

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import hashlib
def sha256(x):
""" Simple wrapper of hashlib sha256. """
return hashlib.sha256(x).digest()
def double_sha256(x):
""" SHA-256 of SHA-256, as used extensively in bitcoin. """
return sha256(sha256(x))
class Base58Error(Exception):
""" Exception used for Base58 errors. """
_CHARS = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
def _iter_encode(be_bytes: bytes):
value = int.from_bytes(be_bytes, 'big')
while value:
value, mod = divmod(value, 58)
yield _CHARS[mod]
for byte in be_bytes:
if byte != 0:
break
yield '1'
def b58_encode(be_bytes: bytes):
return ''.join(_iter_encode(be_bytes))[::-1]
class Base58:
""" Class providing base 58 functionality. """
chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
assert len(chars) == 58
char_map = {c: n for n, c in enumerate(chars)}
@classmethod
def char_value(cls, c):
val = cls.char_map.get(c)
if val is None:
raise Base58Error(f'invalid base 58 character "{c}"')
return val
@classmethod
def decode(cls, txt):
""" Decodes txt into a big-endian bytearray. """
if isinstance(txt, memoryview):
txt = str(txt)
if isinstance(txt, bytes):
txt = txt.decode()
if not isinstance(txt, str):
raise TypeError(f'a string is required, got {type(txt).__name__}')
if not txt:
raise Base58Error('string cannot be empty')
value = 0
for c in txt:
value = value * 58 + cls.char_value(c)
result = value.to_bytes((value.bit_length() + 7) // 8, 'big')
# Prepend leading zero bytes if necessary
count = 0
for c in txt:
if c != '1':
break
count += 1
if count:
result = bytes((0,)) * count + result
return result
@classmethod
def _iter_encode(cls, be_bytes: bytes):
value = int.from_bytes(be_bytes, 'big')
while value:
value, mod = divmod(value, 58)
yield cls.chars[mod]
for byte in be_bytes:
if byte != 0:
break
yield '1'
@classmethod
def encode(cls, be_bytes):
return ''.join(cls._iter_encode(be_bytes))[::-1]
@classmethod
def decode_check(cls, txt, hash_fn=double_sha256):
""" Decodes a Base58Check-encoded string to a payload. The version prefixes it. """
be_bytes = cls.decode(txt)
result, check = be_bytes[:-4], be_bytes[-4:]
if check != hash_fn(result)[:4]:
raise Base58Error(f'invalid base 58 checksum for {txt}')
return result
@classmethod
def encode_check(cls, payload, hash_fn=double_sha256):
""" Encodes a payload bytearray (which includes the version byte(s))
into a Base58Check string."""
be_bytes = payload + hash_fn(payload)[:4]
return b58_encode(be_bytes)

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import sys
import functools
import hashlib
import hmac
from asn1crypto.keys import PrivateKeyInfo, ECPrivateKey
from coincurve import PublicKey as cPublicKey, PrivateKey as cPrivateKey
from coincurve.utils import (
pem_to_der, lib as libsecp256k1, ffi as libsecp256k1_ffi
)
from coincurve.ecdsa import CDATA_SIG_LENGTH
from scribe.base58 import Base58
if (sys.version_info.major, sys.version_info.minor) > (3, 7):
cachedproperty = functools.cached_property
else:
cachedproperty = property
def hmac_sha512(key, msg):
""" Use SHA-512 to provide an HMAC. """
return hmac.new(key, msg, hashlib.sha512).digest()
def sha256(x):
""" Simple wrapper of hashlib sha256. """
return hashlib.sha256(x).digest()
def hash160(x):
""" RIPEMD-160 of SHA-256.
Used to make bitcoin addresses from pubkeys. """
return ripemd160(sha256(x))
def ripemd160(x):
""" Simple wrapper of hashlib ripemd160. """
h = hashlib.new('ripemd160')
h.update(x)
return h.digest()
def double_sha256(x):
""" SHA-256 of SHA-256, as used extensively in bitcoin. """
return sha256(sha256(x))
class KeyPath:
RECEIVE = 0
CHANGE = 1
CHANNEL = 2
class DerivationError(Exception):
""" Raised when an invalid derivation occurs. """
class _KeyBase:
""" A BIP32 Key, public or private. """
def __init__(self, ledger, chain_code, n, depth, parent):
if not isinstance(chain_code, (bytes, bytearray)):
raise TypeError('chain code must be raw bytes')
if len(chain_code) != 32:
raise ValueError('invalid chain code')
if not 0 <= n < 1 << 32:
raise ValueError('invalid child number')
if not 0 <= depth < 256:
raise ValueError('invalid depth')
if parent is not None:
if not isinstance(parent, type(self)):
raise TypeError('parent key has bad type')
self.ledger = ledger
self.chain_code = chain_code
self.n = n
self.depth = depth
self.parent = parent
def _hmac_sha512(self, msg):
""" Use SHA-512 to provide an HMAC, returned as a pair of 32-byte objects. """
hmac = hmac_sha512(self.chain_code, msg)
return hmac[:32], hmac[32:]
def _extended_key(self, ver_bytes, raw_serkey):
""" Return the 78-byte extended key given prefix version bytes and serialized key bytes. """
if not isinstance(ver_bytes, (bytes, bytearray)):
raise TypeError('ver_bytes must be raw bytes')
if len(ver_bytes) != 4:
raise ValueError('ver_bytes must have length 4')
if not isinstance(raw_serkey, (bytes, bytearray)):
raise TypeError('raw_serkey must be raw bytes')
if len(raw_serkey) != 33:
raise ValueError('raw_serkey must have length 33')
return (
ver_bytes + bytes((self.depth,))
+ self.parent_fingerprint() + self.n.to_bytes(4, 'big')
+ self.chain_code + raw_serkey
)
def identifier(self):
raise NotImplementedError
def extended_key(self):
raise NotImplementedError
def fingerprint(self):
""" Return the key's fingerprint as 4 bytes. """
return self.identifier()[:4]
def parent_fingerprint(self):
""" Return the parent key's fingerprint as 4 bytes. """
return self.parent.fingerprint() if self.parent else bytes((0,)*4)
def extended_key_string(self):
""" Return an extended key as a base58 string. """
return Base58.encode_check(self.extended_key())
class PublicKey(_KeyBase):
""" A BIP32 public key. """
def __init__(self, ledger, pubkey, chain_code, n, depth, parent=None):
super().__init__(ledger, chain_code, n, depth, parent)
if isinstance(pubkey, cPublicKey):
self.verifying_key = pubkey
else:
self.verifying_key = self._verifying_key_from_pubkey(pubkey)
@classmethod
def from_compressed(cls, public_key_bytes, ledger=None) -> 'PublicKey':
return cls(ledger, public_key_bytes, bytes((0,)*32), 0, 0)
@classmethod
def _verifying_key_from_pubkey(cls, pubkey):
""" Converts a 33-byte compressed pubkey into an coincurve.PublicKey object. """
if not isinstance(pubkey, (bytes, bytearray)):
raise TypeError('pubkey must be raw bytes')
if len(pubkey) != 33:
raise ValueError('pubkey must be 33 bytes')
if pubkey[0] not in (2, 3):
raise ValueError('invalid pubkey prefix byte')
return cPublicKey(pubkey)
@cachedproperty
def pubkey_bytes(self):
""" Return the compressed public key as 33 bytes. """
return self.verifying_key.format(True)
@cachedproperty
def address(self):
""" The public key as a P2PKH address. """
return self.ledger.public_key_to_address(self.pubkey_bytes)
def ec_point(self):
return self.verifying_key.point()
def child(self, n: int) -> 'PublicKey':
""" Return the derived child extended pubkey at index N. """
if not 0 <= n < (1 << 31):
raise ValueError('invalid BIP32 public key child number')
msg = self.pubkey_bytes + n.to_bytes(4, 'big')
L_b, R_b = self._hmac_sha512(msg) # pylint: disable=invalid-name
derived_key = self.verifying_key.add(L_b)
return PublicKey(self.ledger, derived_key, R_b, n, self.depth + 1, self)
def identifier(self):
""" Return the key's identifier as 20 bytes. """
return hash160(self.pubkey_bytes)
def extended_key(self):
""" Return a raw extended public key. """
return self._extended_key(
self.ledger.extended_public_key_prefix,
self.pubkey_bytes
)
def verify(self, signature, digest) -> bool:
""" Verify that a signature is valid for a 32 byte digest. """
if len(signature) != 64:
raise ValueError('Signature must be 64 bytes long.')
if len(digest) != 32:
raise ValueError('Digest must be 32 bytes long.')
key = self.verifying_key
raw_signature = libsecp256k1_ffi.new('secp256k1_ecdsa_signature *')
parsed = libsecp256k1.secp256k1_ecdsa_signature_parse_compact(
key.context.ctx, raw_signature, signature
)
assert parsed == 1
normalized_signature = libsecp256k1_ffi.new('secp256k1_ecdsa_signature *')
libsecp256k1.secp256k1_ecdsa_signature_normalize(
key.context.ctx, normalized_signature, raw_signature
)
verified = libsecp256k1.secp256k1_ecdsa_verify(
key.context.ctx, normalized_signature, digest, key.public_key
)
return bool(verified)
class PrivateKey(_KeyBase):
"""A BIP32 private key."""
HARDENED = 1 << 31
def __init__(self, ledger, privkey, chain_code, n, depth, parent=None):
super().__init__(ledger, chain_code, n, depth, parent)
if isinstance(privkey, cPrivateKey):
self.signing_key = privkey
else:
self.signing_key = self._signing_key_from_privkey(privkey)
@classmethod
def _signing_key_from_privkey(cls, private_key):
""" Converts a 32-byte private key into an coincurve.PrivateKey object. """
return cPrivateKey.from_int(PrivateKey._private_key_secret_exponent(private_key))
@classmethod
def _private_key_secret_exponent(cls, private_key):
""" Return the private key as a secret exponent if it is a valid private key. """
if not isinstance(private_key, (bytes, bytearray)):
raise TypeError('private key must be raw bytes')
if len(private_key) != 32:
raise ValueError('private key must be 32 bytes')
return int.from_bytes(private_key, 'big')
@classmethod
def from_seed(cls, ledger, seed) -> 'PrivateKey':
# This hard-coded message string seems to be coin-independent...
hmac = hmac_sha512(b'Bitcoin seed', seed)
privkey, chain_code = hmac[:32], hmac[32:]
return cls(ledger, privkey, chain_code, 0, 0)
@classmethod
def from_pem(cls, ledger, pem) -> 'PrivateKey':
der = pem_to_der(pem.encode())
try:
key_int = ECPrivateKey.load(der).native['private_key']
except ValueError:
key_int = PrivateKeyInfo.load(der).native['private_key']['private_key']
private_key = cPrivateKey.from_int(key_int)
return cls(ledger, private_key, bytes((0,)*32), 0, 0)
@cachedproperty
def private_key_bytes(self):
""" Return the serialized private key (no leading zero byte). """
return self.signing_key.secret
@cachedproperty
def public_key(self) -> PublicKey:
""" Return the corresponding extended public key. """
verifying_key = self.signing_key.public_key
parent_pubkey = self.parent.public_key if self.parent else None
return PublicKey(
self.ledger, verifying_key, self.chain_code,
self.n, self.depth, parent_pubkey
)
def ec_point(self):
return self.public_key.ec_point()
def secret_exponent(self):
""" Return the private key as a secret exponent. """
return self.signing_key.to_int()
def wif(self):
""" Return the private key encoded in Wallet Import Format. """
return self.ledger.private_key_to_wif(self.private_key_bytes)
@property
def address(self):
""" The public key as a P2PKH address. """
return self.public_key.address
def child(self, n) -> 'PrivateKey':
""" Return the derived child extended private key at index N."""
if not 0 <= n < (1 << 32):
raise ValueError('invalid BIP32 private key child number')
if n >= self.HARDENED:
serkey = b'\0' + self.private_key_bytes
else:
serkey = self.public_key.pubkey_bytes
msg = serkey + n.to_bytes(4, 'big')
L_b, R_b = self._hmac_sha512(msg) # pylint: disable=invalid-name
derived_key = self.signing_key.add(L_b)
return PrivateKey(self.ledger, derived_key, R_b, n, self.depth + 1, self)
def sign(self, data):
""" Produce a signature for piece of data by double hashing it and signing the hash. """
return self.signing_key.sign(data, hasher=double_sha256)
def sign_compact(self, digest):
""" Produce a compact signature. """
key = self.signing_key
signature = libsecp256k1_ffi.new('secp256k1_ecdsa_signature *')
signed = libsecp256k1.secp256k1_ecdsa_sign(
key.context.ctx, signature, digest, key.secret,
libsecp256k1_ffi.NULL, libsecp256k1_ffi.NULL
)
if not signed:
raise ValueError('The private key was invalid.')
serialized = libsecp256k1_ffi.new('unsigned char[%d]' % CDATA_SIG_LENGTH)
compacted = libsecp256k1.secp256k1_ecdsa_signature_serialize_compact(
key.context.ctx, serialized, signature
)
if compacted != 1:
raise ValueError('The signature could not be compacted.')
return bytes(libsecp256k1_ffi.buffer(serialized, CDATA_SIG_LENGTH))
def identifier(self):
"""Return the key's identifier as 20 bytes."""
return self.public_key.identifier()
def extended_key(self):
"""Return a raw extended private key."""
return self._extended_key(
self.ledger.extended_private_key_prefix,
b'\0' + self.private_key_bytes
)
def to_pem(self):
return self.signing_key.to_pem()
def _from_extended_key(ledger, ekey):
"""Return a PublicKey or PrivateKey from an extended key raw bytes."""
if not isinstance(ekey, (bytes, bytearray)):
raise TypeError('extended key must be raw bytes')
if len(ekey) != 78:
raise ValueError('extended key must have length 78')
depth = ekey[4]
n = int.from_bytes(ekey[9:13], 'big')
chain_code = ekey[13:45]
if ekey[:4] == ledger.extended_public_key_prefix:
pubkey = ekey[45:]
key = PublicKey(ledger, pubkey, chain_code, n, depth)
elif ekey[:4] == ledger.extended_private_key_prefix:
if ekey[45] != 0:
raise ValueError('invalid extended private key prefix byte')
privkey = ekey[46:]
key = PrivateKey(ledger, privkey, chain_code, n, depth)
else:
raise ValueError('version bytes unrecognised')
return key
def from_extended_key_string(ledger, ekey_str):
"""Given an extended key string, such as
xpub6BsnM1W2Y7qLMiuhi7f7dbAwQZ5Cz5gYJCRzTNainXzQXYjFwtuQXHd
3qfi3t3KJtHxshXezfjft93w4UE7BGMtKwhqEHae3ZA7d823DVrL
return a PublicKey or PrivateKey.
"""
return _from_extended_key(ledger, Base58.decode_check(ekey_str))

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from .network import LBCTestNet, LBCRegTest, LBCMainNet

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import asyncio
import itertools
import json
import time
import logging
from functools import wraps
import aiohttp
from prometheus_client import Gauge, Histogram
from scribe import PROMETHEUS_NAMESPACE
from scribe.common import LRUCacheWithMetrics, RPCError, DaemonError, WarmingUpError, WorkQueueFullError
log = logging.getLogger(__name__)
NAMESPACE = f"{PROMETHEUS_NAMESPACE}_blockchain"
METHOD_NOT_FOUND = -32601
def handles_errors(decorated_function):
@wraps(decorated_function)
async def wrapper(*args, **kwargs):
try:
return await decorated_function(*args, **kwargs)
except DaemonError as daemon_error:
raise RPCError(1, daemon_error.args[0])
return wrapper
class LBCDaemon:
"""Handles connections to a daemon at the given URL."""
WARMING_UP = -28
id_counter = itertools.count()
lbrycrd_request_time_metric = Histogram(
"lbrycrd_request", "lbrycrd requests count", namespace=NAMESPACE, labelnames=("method",)
)
lbrycrd_pending_count_metric = Gauge(
"lbrycrd_pending_count", "Number of lbrycrd rpcs that are in flight", namespace=NAMESPACE,
labelnames=("method",)
)
def __init__(self, coin, url, max_workqueue=10, init_retry=0.25,
max_retry=4.0):
self.coin = coin
self.logger = logging.getLogger(__name__)
self.set_url(url)
# Limit concurrent RPC calls to this number.
# See DEFAULT_HTTP_WORKQUEUE in bitcoind, which is typically 16
self.workqueue_semaphore = asyncio.Semaphore(value=max_workqueue)
self.init_retry = init_retry
self.max_retry = max_retry
self._height = None
self.available_rpcs = {}
self.connector = aiohttp.TCPConnector(ssl=False)
self._block_hash_cache = LRUCacheWithMetrics(100000)
self._block_cache = LRUCacheWithMetrics(2 ** 13, metric_name='block', namespace=NAMESPACE)
async def close(self):
if self.connector:
await self.connector.close()
self.connector = None
def set_url(self, url):
"""Set the URLS to the given list, and switch to the first one."""
urls = url.split(',')
urls = [self.coin.sanitize_url(url) for url in urls]
for n, url in enumerate(urls):
status = '' if n else ' (current)'
logged_url = self.logged_url(url)
self.logger.info(f'daemon #{n + 1} at {logged_url}{status}')
self.url_index = 0
self.urls = urls
def current_url(self):
"""Returns the current daemon URL."""
return self.urls[self.url_index]
def logged_url(self, url=None):
"""The host and port part, for logging."""
url = url or self.current_url()
return url[url.rindex('@') + 1:]
def failover(self):
"""Call to fail-over to the next daemon URL.
Returns False if there is only one, otherwise True.
"""
if len(self.urls) > 1:
self.url_index = (self.url_index + 1) % len(self.urls)
self.logger.info(f'failing over to {self.logged_url()}')
return True
return False
def client_session(self):
"""An aiohttp client session."""
return aiohttp.ClientSession(connector=self.connector, connector_owner=False)
async def _send_data(self, data):
if not self.connector:
raise asyncio.CancelledError('Tried to send request during shutdown.')
async with self.workqueue_semaphore:
async with self.client_session() as session:
async with session.post(self.current_url(), data=data) as resp:
kind = resp.headers.get('Content-Type', None)
if kind == 'application/json':
return await resp.json()
# bitcoind's HTTP protocol "handling" is a bad joke
text = await resp.text()
if 'Work queue depth exceeded' in text:
raise WorkQueueFullError
text = text.strip() or resp.reason
self.logger.error(text)
raise DaemonError(text)
async def _send(self, payload, processor):
"""Send a payload to be converted to JSON.
Handles temporary connection issues. Daemon response errors
are raise through DaemonError.
"""
def log_error(error):
nonlocal last_error_log, retry
now = time.time()
if now - last_error_log > 60:
last_error_log = now
self.logger.error(f'{error} Retrying occasionally...')
if retry == self.max_retry and self.failover():
retry = 0
on_good_message = None
last_error_log = 0
data = json.dumps(payload)
retry = self.init_retry
methods = tuple(
[payload['method']] if isinstance(payload, dict) else [request['method'] for request in payload]
)
while True:
try:
for method in methods:
self.lbrycrd_pending_count_metric.labels(method=method).inc()
result = await self._send_data(data)
result = processor(result)
if on_good_message:
self.logger.info(on_good_message)
return result
except asyncio.TimeoutError:
log_error('timeout error.')
except aiohttp.ServerDisconnectedError:
log_error('disconnected.')
on_good_message = 'connection restored'
except aiohttp.ClientConnectionError:
log_error('connection problem - is your daemon running?')
on_good_message = 'connection restored'
except aiohttp.ClientError as e:
log_error(f'daemon error: {e}')
on_good_message = 'running normally'
except WarmingUpError:
log_error('starting up checking blocks.')
on_good_message = 'running normally'
except WorkQueueFullError:
log_error('work queue full.')
on_good_message = 'running normally'
finally:
for method in methods:
self.lbrycrd_pending_count_metric.labels(method=method).dec()
await asyncio.sleep(retry)
retry = max(min(self.max_retry, retry * 2), self.init_retry)
async def _send_single(self, method, params=None):
"""Send a single request to the daemon."""
start = time.perf_counter()
def processor(result):
err = result['error']
if not err:
return result['result']
if err.get('code') == self.WARMING_UP:
raise WarmingUpError
raise DaemonError(err)
payload = {'method': method, 'id': next(self.id_counter)}
if params:
payload['params'] = params
result = await self._send(payload, processor)
self.lbrycrd_request_time_metric.labels(method=method).observe(time.perf_counter() - start)
return result
async def _send_vector(self, method, params_iterable, replace_errs=False):
"""Send several requests of the same method.
The result will be an array of the same length as params_iterable.
If replace_errs is true, any item with an error is returned as None,
otherwise an exception is raised."""
start = time.perf_counter()
def processor(result):
errs = [item['error'] for item in result if item['error']]
if any(err.get('code') == self.WARMING_UP for err in errs):
raise WarmingUpError
if not errs or replace_errs:
return [item['result'] for item in result]
raise DaemonError(errs)
payload = [{'method': method, 'params': p, 'id': next(self.id_counter)}
for p in params_iterable]
result = []
if payload:
result = await self._send(payload, processor)
self.lbrycrd_request_time_metric.labels(method=method).observe(time.perf_counter() - start)
return result
async def _is_rpc_available(self, method):
"""Return whether given RPC method is available in the daemon.
Results are cached and the daemon will generally not be queried with
the same method more than once."""
available = self.available_rpcs.get(method)
if available is None:
available = True
try:
await self._send_single(method)
except DaemonError as e:
err = e.args[0]
error_code = err.get("code")
available = error_code != METHOD_NOT_FOUND
self.available_rpcs[method] = available
return available
async def block_hex_hashes(self, first, count):
"""Return the hex hashes of count block starting at height first."""
if first + count < (self.cached_height() or 0) - 200:
return await self._cached_block_hex_hashes(first, count)
params_iterable = ((h, ) for h in range(first, first + count))
return await self._send_vector('getblockhash', params_iterable)
async def _cached_block_hex_hashes(self, first, count):
"""Return the hex hashes of count block starting at height first."""
cached = self._block_hash_cache.get((first, count))
if cached:
return cached
params_iterable = ((h, ) for h in range(first, first + count))
self._block_hash_cache[(first, count)] = await self._send_vector('getblockhash', params_iterable)
return self._block_hash_cache[(first, count)]
async def deserialised_block(self, hex_hash):
"""Return the deserialised block with the given hex hash."""
if hex_hash not in self._block_cache:
block = await self._send_single('getblock', (hex_hash, 1))
self._block_cache[hex_hash] = block
return block
return self._block_cache[hex_hash]
async def raw_blocks(self, hex_hashes):
"""Return the raw binary blocks with the given hex hashes."""
params_iterable = ((h, 0) for h in hex_hashes)
blocks = await self._send_vector('getblock', params_iterable)
# Convert hex string to bytes
return [bytes.fromhex(block) for block in blocks]
async def mempool_hashes(self):
"""Update our record of the daemon's mempool hashes."""
return await self._send_single('getrawmempool')
async def estimatefee(self, block_count):
"""Return the fee estimate for the block count. Units are whole
currency units per KB, e.g. 0.00000995, or -1 if no estimate
is available.
"""
args = (block_count, )
if await self._is_rpc_available('estimatesmartfee'):
estimate = await self._send_single('estimatesmartfee', args)
return estimate.get('feerate', -1)
return await self._send_single('estimatefee', args)
async def getnetworkinfo(self):
"""Return the result of the 'getnetworkinfo' RPC call."""
return await self._send_single('getnetworkinfo')
async def relayfee(self):
"""The minimum fee a low-priority tx must pay in order to be accepted
to the daemon's memory pool."""
network_info = await self.getnetworkinfo()
return network_info['relayfee']
async def getrawtransactions(self, hex_hashes, replace_errs=True):
"""Return the serialized raw transactions with the given hashes.
Replaces errors with None by default."""
params_iterable = ((hex_hash, 0) for hex_hash in hex_hashes)
txs = await self._send_vector('getrawtransaction', params_iterable,
replace_errs=replace_errs)
# Convert hex strings to bytes
return [bytes.fromhex(tx) if tx else None for tx in txs]
async def broadcast_transaction(self, raw_tx):
"""Broadcast a transaction to the network."""
return await self._send_single('sendrawtransaction', (raw_tx, ))
async def height(self):
"""Query the daemon for its current height."""
self._height = await self._send_single('getblockcount')
return self._height
def cached_height(self):
"""Return the cached daemon height.
If the daemon has not been queried yet this returns None."""
return self._height
@handles_errors
async def getrawtransaction(self, hex_hash, verbose=False):
return await self._send_single('getrawtransaction', (hex_hash, int(verbose)))
@handles_errors
async def getclaimsforname(self, name):
'''Given a name, retrieves all claims matching that name.'''
return await self._send_single('getclaimsforname', (name,))
@handles_errors
async def getbestblockhash(self):
'''Given a name, retrieves all claims matching that name.'''
return await self._send_single('getbestblockhash')

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import re
import struct
import typing
from typing import List
from hashlib import sha256
from decimal import Decimal
from scribe.base58 import Base58
from scribe.bip32 import PublicKey
from scribe.common import hash160, hash_to_hex_str, double_sha256
from scribe.blockchain.transaction import TxOutput, TxInput, Block
from scribe.blockchain.transaction.deserializer import Deserializer
from scribe.blockchain.transaction.script import OpCodes, P2PKH_script, P2SH_script, txo_script_parser
HASHX_LEN = 11
class CoinError(Exception):
"""Exception raised for coin-related errors."""
ENCODE_CHECK = Base58.encode_check
DECODE_CHECK = Base58.decode_check
class LBCMainNet:
NAME = "LBRY"
SHORTNAME = "LBC"
NET = "mainnet"
ENCODE_CHECK = Base58.encode_check
DECODE_CHECK = Base58.decode_check
DESERIALIZER = Deserializer
BASIC_HEADER_SIZE = 112
CHUNK_SIZE = 96
XPUB_VERBYTES = bytes.fromhex("0488b21e")
XPRV_VERBYTES = bytes.fromhex("0488ade4")
P2PKH_VERBYTE = bytes.fromhex("55")
P2SH_VERBYTES = bytes.fromhex("7A")
WIF_BYTE = bytes.fromhex("1C")
GENESIS_HASH = '9c89283ba0f3227f6c03b70216b9f665f0118d5e0fa729cedf4fb34d6a34f463'
RPC_PORT = 9245
REORG_LIMIT = 200
RPC_URL_REGEX = re.compile('.+@(\\[[0-9a-fA-F:]+\\]|[^:]+)(:[0-9]+)?')
VALUE_PER_COIN = 100000000
# Peer discovery
PEER_DEFAULT_PORTS = {'t': '50001', 's': '50002'}
PEERS: List[str] = []
# claimtrie/takeover params
nOriginalClaimExpirationTime = 262974
nExtendedClaimExpirationTime = 2102400
nExtendedClaimExpirationForkHeight = 400155
nNormalizedNameForkHeight = 539940 # targeting 21 March 2019
nMinTakeoverWorkaroundHeight = 496850
nMaxTakeoverWorkaroundHeight = 658300 # targeting 30 Oct 2019
nWitnessForkHeight = 680770 # targeting 11 Dec 2019
nAllClaimsInMerkleForkHeight = 658310 # targeting 30 Oct 2019
proportionalDelayFactor = 32
maxTakeoverDelay = 4032
@classmethod
def sanitize_url(cls, url):
# Remove surrounding ws and trailing /s
url = url.strip().rstrip('/')
match = cls.RPC_URL_REGEX.match(url)
if not match:
raise CoinError(f'invalid daemon URL: "{url}"')
if match.groups()[1] is None:
url += f':{cls.RPC_PORT:d}'
if not url.startswith('http://') and not url.startswith('https://'):
url = 'http://' + url
return url + '/'
@classmethod
def address_to_hashX(cls, address):
"""Return a hashX given a coin address."""
return cls.hashX_from_script(cls.pay_to_address_script(address))
@classmethod
def P2PKH_address_from_hash160(cls, hash160_bytes):
"""Return a P2PKH address given a public key."""
assert len(hash160_bytes) == 20
return ENCODE_CHECK(cls.P2PKH_VERBYTE + hash160_bytes)
@classmethod
def P2PKH_address_from_pubkey(cls, pubkey):
"""Return a coin address given a public key."""
return cls.P2PKH_address_from_hash160(hash160(pubkey))
@classmethod
def P2SH_address_from_hash160(cls, hash160_bytes):
"""Return a coin address given a hash160."""
assert len(hash160_bytes) == 20
return ENCODE_CHECK(cls.P2SH_VERBYTES + hash160_bytes)
@classmethod
def hash160_to_P2PKH_script(cls, hash160_bytes):
return P2PKH_script(hash160_bytes)
@classmethod
def hash160_to_P2PKH_hashX(cls, hash160_bytes):
return cls.hashX_from_script(P2PKH_script(hash160_bytes))
@classmethod
def pay_to_address_script(cls, address):
"""Return a pubkey script that pays to a pubkey hash.
Pass the address (either P2PKH or P2SH) in base58 form.
"""
raw = DECODE_CHECK(address)
# Require version byte(s) plus hash160.
verlen = len(raw) - 20
if verlen > 0:
verbyte, hash160_bytes = raw[:verlen], raw[verlen:]
if verbyte == cls.P2PKH_VERBYTE:
return P2PKH_script(hash160_bytes)
if verbyte in cls.P2SH_VERBYTES:
return P2SH_script(hash160_bytes)
raise CoinError(f'invalid address: {address}')
@classmethod
def privkey_WIF(cls, privkey_bytes, compressed):
"""Return the private key encoded in Wallet Import Format."""
payload = bytearray(cls.WIF_BYTE) + privkey_bytes
if compressed:
payload.append(0x01)
return cls.ENCODE_CHECK(payload)
@classmethod
def header_hash(cls, header):
"""Given a header return hash"""
return double_sha256(header)
@classmethod
def header_prevhash(cls, header):
"""Given a header return previous hash"""
return header[4:36]
@classmethod
def static_header_offset(cls, height):
"""Given a header height return its offset in the headers file.
If header sizes change at some point, this is the only code
that needs updating."""
return height * cls.BASIC_HEADER_SIZE
@classmethod
def static_header_len(cls, height):
"""Given a header height return its length."""
return (cls.static_header_offset(height + 1)
- cls.static_header_offset(height))
@classmethod
def block_header(cls, block, height):
"""Returns the block header given a block and its height."""
return block[:cls.static_header_len(height)]
@classmethod
def block(cls, raw_block, height):
"""Return a Block namedtuple given a raw block and its height."""
header = cls.block_header(raw_block, height)
txs = Deserializer(raw_block, start=len(header)).read_tx_block()
return Block(raw_block, header, txs)
@classmethod
def transaction(cls, raw_tx: bytes):
"""Return a Block namedtuple given a raw block and its height."""
return Deserializer(raw_tx).read_tx()
@classmethod
def decimal_value(cls, value):
"""Return the number of standard coin units as a Decimal given a
quantity of smallest units.
For example 1 BTC is returned for 100 million satoshis.
"""
return Decimal(value) / cls.VALUE_PER_COIN
@classmethod
def genesis_block(cls, block):
'''Check the Genesis block is the right one for this coin.
Return the block less its unspendable coinbase.
'''
header = cls.block_header(block, 0)
header_hex_hash = hash_to_hex_str(cls.header_hash(header))
if header_hex_hash != cls.GENESIS_HASH:
raise CoinError(f'genesis block has hash {header_hex_hash} expected {cls.GENESIS_HASH}')
return block
@classmethod
def electrum_header(cls, header, height):
version, = struct.unpack('<I', header[:4])
timestamp, bits, nonce = struct.unpack('<III', header[100:112])
return {
'version': version,
'prev_block_hash': hash_to_hex_str(header[4:36]),
'merkle_root': hash_to_hex_str(header[36:68]),
'claim_trie_root': hash_to_hex_str(header[68:100]),
'timestamp': timestamp,
'bits': bits,
'nonce': nonce,
'block_height': height,
}
@classmethod
def claim_address_handler(cls, txo: TxOutput) -> typing.Optional[str]:
'''Parse a claim script, returns the address
'''
if txo.pubkey_hash:
return cls.P2PKH_address_from_hash160(txo.pubkey_hash)
elif txo.script_hash:
return cls.P2SH_address_from_hash160(txo.script_hash)
elif txo.pubkey:
return cls.P2PKH_address_from_pubkey(txo.pubkey)
@classmethod
def hashX_from_txo(cls, txo: 'TxOutput'):
address = cls.claim_address_handler(txo)
if address:
script = cls.pay_to_address_script(address)
else:
script = txo.pk_script
return sha256(script).digest()[:HASHX_LEN]
@classmethod
def hashX_from_script(cls, script: bytes):
'''
Overrides electrumx hashX from script by extracting addresses from claim scripts.
'''
if script and script[0] == OpCodes.OP_RETURN or not script:
return None
if script[0] in [
OpCodes.OP_CLAIM_NAME,
OpCodes.OP_UPDATE_CLAIM,
OpCodes.OP_SUPPORT_CLAIM,
]:
decoded = txo_script_parser(script)
if not decoded:
return
claim, support, pubkey_hash, script_hash, pubkey = decoded
if pubkey_hash:
return cls.address_to_hashX(cls.P2PKH_address_from_hash160(pubkey_hash))
elif script_hash:
return cls.address_to_hashX(cls.P2SH_address_from_hash160(script_hash))
elif pubkey:
return cls.address_to_hashX(cls.P2PKH_address_from_pubkey(pubkey))
else:
return sha256(script).digest()[:HASHX_LEN]
@classmethod
def get_expiration_height(cls, last_updated_height: int, extended: bool = False) -> int:
if extended:
return last_updated_height + cls.nExtendedClaimExpirationTime
if last_updated_height < cls.nExtendedClaimExpirationForkHeight:
return last_updated_height + cls.nOriginalClaimExpirationTime
return last_updated_height + cls.nExtendedClaimExpirationTime
@classmethod
def get_delay_for_name(cls, blocks_of_continuous_ownership: int) -> int:
return min(blocks_of_continuous_ownership // cls.proportionalDelayFactor, cls.maxTakeoverDelay)
@classmethod
def verify_signed_metadata(cls, public_key_bytes: bytes, txo: TxOutput, first_input: TxInput):
m = txo.metadata
if m.unsigned_payload:
pieces = (Base58.decode(cls.claim_address_handler(txo)), m.unsigned_payload, m.signing_channel_hash[::-1])
else:
pieces = (first_input.prev_hash + first_input.prev_idx.to_bytes(4, byteorder='little'),
m.signing_channel_hash, m.to_message_bytes())
return PublicKey.from_compressed(public_key_bytes).verify(
m.signature, sha256(b''.join(pieces)).digest()
)
class LBCRegTest(LBCMainNet):
NET = "regtest"
GENESIS_HASH = '6e3fcf1299d4ec5d79c3a4c91d624a4acf9e2e173d95a1a0504f677669687556'
XPUB_VERBYTES = bytes.fromhex('043587cf')
XPRV_VERBYTES = bytes.fromhex('04358394')
P2PKH_VERBYTE = bytes.fromhex("6f")
P2SH_VERBYTES = bytes.fromhex("c4")
nOriginalClaimExpirationTime = 500
nExtendedClaimExpirationTime = 600
nExtendedClaimExpirationForkHeight = 800
nNormalizedNameForkHeight = 250
nMinTakeoverWorkaroundHeight = -1
nMaxTakeoverWorkaroundHeight = -1
nWitnessForkHeight = 150
nAllClaimsInMerkleForkHeight = 350
class LBCTestNet(LBCRegTest):
NET = "testnet"
GENESIS_HASH = '9c89283ba0f3227f6c03b70216b9f665f0118d5e0fa729cedf4fb34d6a34f463'

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import asyncio
import logging
import typing
if typing.TYPE_CHECKING:
from scribe.blockchain.network import LBCMainNet
from scribe.blockchain.daemon import LBCDaemon
def chunks(items, size):
"""Break up items, an iterable, into chunks of length size."""
for i in range(0, len(items), size):
yield items[i: i + size]
class Prefetcher:
"""Prefetches blocks (in the forward direction only)."""
def __init__(self, daemon: 'LBCDaemon', coin: 'LBCMainNet', blocks_event: asyncio.Event):
self.logger = logging.getLogger(__name__)
self.daemon = daemon
self.coin = coin
self.blocks_event = blocks_event
self.blocks = []
self.caught_up = False
# Access to fetched_height should be protected by the semaphore
self.fetched_height = None
self.semaphore = asyncio.Semaphore()
self.refill_event = asyncio.Event()
# The prefetched block cache size. The min cache size has
# little effect on sync time.
self.cache_size = 0
self.min_cache_size = 10 * 1024 * 1024
# This makes the first fetch be 10 blocks
self.ave_size = self.min_cache_size // 10
self.polling_delay = 0.5
async def main_loop(self, bp_height):
"""Loop forever polling for more blocks."""
await self.reset_height(bp_height)
try:
while True:
# Sleep a while if there is nothing to prefetch
await self.refill_event.wait()
if not await self._prefetch_blocks():
await asyncio.sleep(self.polling_delay)
except Exception as e:
if not isinstance(e, asyncio.CancelledError):
self.logger.exception("block fetcher loop crashed")
raise
finally:
self.logger.info("block pre-fetcher is shutting down")
def get_prefetched_blocks(self):
"""Called by block processor when it is processing queued blocks."""
blocks = self.blocks
self.blocks = []
self.cache_size = 0
self.refill_event.set()
return blocks
async def reset_height(self, height):
"""Reset to prefetch blocks from the block processor's height.
Used in blockchain reorganisations. This coroutine can be
called asynchronously to the _prefetch_blocks coroutine so we
must synchronize with a semaphore.
"""
async with self.semaphore:
self.blocks.clear()
self.cache_size = 0
self.fetched_height = height
self.refill_event.set()
daemon_height = await self.daemon.height()
behind = daemon_height - height
if behind > 0:
self.logger.info(f'catching up to daemon height {daemon_height:,d} '
f'({behind:,d} blocks behind)')
else:
self.logger.info(f'caught up to daemon height {daemon_height:,d}')
async def _prefetch_blocks(self):
"""Prefetch some blocks and put them on the queue.
Repeats until the queue is full or caught up.
"""
daemon = self.daemon
daemon_height = await daemon.height()
async with self.semaphore:
while self.cache_size < self.min_cache_size:
# Try and catch up all blocks but limit to room in cache.
# Constrain fetch count to between 0 and 500 regardless;
# testnet can be lumpy.
cache_room = self.min_cache_size // self.ave_size
count = min(daemon_height - self.fetched_height, cache_room)
count = min(500, max(count, 0))
if not count:
self.caught_up = True
return False
first = self.fetched_height + 1
hex_hashes = await daemon.block_hex_hashes(first, count)
if self.caught_up:
self.logger.info('new block height {:,d} hash {}'
.format(first + count-1, hex_hashes[-1]))
blocks = await daemon.raw_blocks(hex_hashes)
assert count == len(blocks)
# Special handling for genesis block
if first == 0:
blocks[0] = self.coin.genesis_block(blocks[0])
self.logger.info(f'verified genesis block with hash {hex_hashes[0]}')
# Update our recent average block size estimate
size = sum(len(block) for block in blocks)
if count >= 10:
self.ave_size = size // count
else:
self.ave_size = (size + (10 - count) * self.ave_size) // 10
self.blocks.extend(blocks)
self.cache_size += size
self.fetched_height += count
self.blocks_event.set()
self.refill_event.clear()
return True

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import sys
import functools
import typing
from dataclasses import dataclass
from struct import Struct
from scribe.schema.claim import Claim
if (sys.version_info.major, sys.version_info.minor) > (3, 7):
cachedproperty = functools.cached_property
else:
cachedproperty = property
struct_le_i = Struct('<i')
struct_le_q = Struct('<q')
struct_le_H = Struct('<H')
struct_le_I = Struct('<I')
struct_le_Q = Struct('<Q')
struct_be_H = Struct('>H')
struct_be_I = Struct('>I')
structB = Struct('B')
unpack_le_int32_from = struct_le_i.unpack_from
unpack_le_int64_from = struct_le_q.unpack_from
unpack_le_uint16_from = struct_le_H.unpack_from
unpack_le_uint32_from = struct_le_I.unpack_from
unpack_le_uint64_from = struct_le_Q.unpack_from
unpack_be_uint16_from = struct_be_H.unpack_from
unpack_be_uint32_from = struct_be_I.unpack_from
pack_le_int32 = struct_le_i.pack
pack_le_int64 = struct_le_q.pack
pack_le_uint16 = struct_le_H.pack
pack_le_uint32 = struct_le_I.pack
pack_le_uint64 = struct_le_q.pack
pack_be_uint64 = lambda x: x.to_bytes(8, byteorder='big')
pack_be_uint16 = lambda x: x.to_bytes(2, byteorder='big')
pack_be_uint32 = struct_be_I.pack
pack_byte = structB.pack
def pack_varint(n):
if n < 253:
return pack_byte(n)
if n < 65536:
return pack_byte(253) + pack_le_uint16(n)
if n < 4294967296:
return pack_byte(254) + pack_le_uint32(n)
return pack_byte(255) + pack_le_uint64(n)
def pack_varbytes(data):
return pack_varint(len(data)) + data
class NameClaim(typing.NamedTuple):
name: bytes
value: bytes
class ClaimUpdate(typing.NamedTuple):
name: bytes
claim_hash: bytes
value: typing.Optional[bytes] = None
class ClaimSupport(typing.NamedTuple):
name: bytes
claim_hash: bytes
value: typing.Optional[bytes] = None
ZERO = bytes(32)
MINUS_1 = 4294967295
class Tx(typing.NamedTuple):
version: int
inputs: typing.List['TxInput']
outputs: typing.List['TxOutput']
locktime: int
raw: bytes
marker: typing.Optional[int] = None
flag: typing.Optional[int] = None
witness: typing.Optional[typing.List[typing.List[bytes]]] = None
class TxInput(typing.NamedTuple):
prev_hash: bytes
prev_idx: int
script: bytes
sequence: int
def __str__(self):
return f"TxInput({self.prev_hash[::-1].hex()}, {self.prev_idx:d}, script={self.script.hex()}, " \
f"sequence={self.sequence:d})"
def is_generation(self):
"""Test if an input is generation/coinbase like"""
return self.prev_idx == MINUS_1 and self.prev_hash == ZERO
def serialize(self):
return b''.join((
self.prev_hash,
pack_le_uint32(self.prev_idx),
pack_varbytes(self.script),
pack_le_uint32(self.sequence),
))
@dataclass
class TxOutput:
nout: int
value: int
pk_script: bytes
claim: typing.Optional[typing.Union[NameClaim, ClaimUpdate]] # TODO: fix this being mutable, it shouldn't be
support: typing.Optional[ClaimSupport]
pubkey_hash: typing.Optional[bytes]
script_hash: typing.Optional[bytes]
pubkey: typing.Optional[bytes]
@property
def is_claim(self):
return isinstance(self.claim, NameClaim)
@property
def is_update(self):
return isinstance(self.claim, ClaimUpdate)
@cachedproperty
def metadata(self) -> typing.Optional[Claim]:
return None if not (self.claim or self.support).value else Claim.from_bytes((self.claim or self.support).value)
@property
def is_support(self):
return self.support is not None
def serialize(self):
return b''.join((
pack_le_int64(self.value),
pack_varbytes(self.pk_script),
))
class Block(typing.NamedTuple):
raw: bytes
header: bytes
transactions: typing.List[Tx]

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from scribe.common import double_sha256
from scribe.blockchain.transaction import (
unpack_le_int32_from, unpack_le_int64_from, unpack_le_uint16_from,
unpack_le_uint32_from, unpack_le_uint64_from, Tx, TxInput, TxOutput
)
from scribe.blockchain.transaction.script import txo_script_parser
class Deserializer:
"""Deserializes blocks into transactions.
External entry points are read_tx(), read_tx_and_hash(),
read_tx_and_vsize() and read_block().
This code is performance sensitive as it is executed 100s of
millions of times during sync.
"""
TX_HASH_FN = staticmethod(double_sha256)
def __init__(self, binary, start=0):
assert isinstance(binary, bytes), f"type {type(binary)} is not 'bytes'"
self.binary = binary
self.binary_length = len(binary)
self.cursor = start
self.flags = 0
def _read_witness(self, fields):
read_witness_field = self._read_witness_field
return [read_witness_field() for i in range(fields)]
def _read_witness_field(self):
read_varbytes = self._read_varbytes
return [read_varbytes() for i in range(self._read_varint())]
def _read_tx_parts(self):
"""Return a (deserialized TX, tx_hash, vsize) tuple."""
start = self.cursor
marker = self.binary[self.cursor + 4]
if marker:
tx = Tx(
self._read_le_int32(), # version
self._read_inputs(), # inputs
self._read_outputs(), # outputs
self._read_le_uint32(), # locktime
self.binary[start:self.cursor],
)
tx_hash = self.TX_HASH_FN(self.binary[start:self.cursor])
return tx, tx_hash, self.binary_length
# Ugh, this is nasty.
version = self._read_le_int32()
orig_ser = self.binary[start:self.cursor]
marker = self._read_byte()
flag = self._read_byte()
start = self.cursor
inputs = self._read_inputs()
outputs = self._read_outputs()
orig_ser += self.binary[start:self.cursor]
base_size = self.cursor - start
witness = self._read_witness(len(inputs))
start = self.cursor
locktime = self._read_le_uint32()
orig_ser += self.binary[start:self.cursor]
vsize = (3 * base_size + self.binary_length) // 4
return Tx(version, inputs, outputs, locktime, orig_ser, marker, flag, witness), self.TX_HASH_FN(orig_ser), vsize
def read_tx(self):
return self._read_tx_parts()[0]
def read_tx_and_hash(self):
tx, tx_hash, vsize = self._read_tx_parts()
return tx, tx_hash
def read_tx_and_vsize(self):
tx, tx_hash, vsize = self._read_tx_parts()
return tx, vsize
def read_tx_block(self):
"""Returns a list of (deserialized_tx, tx_hash) pairs."""
read = self.read_tx_and_hash
# Some coins have excess data beyond the end of the transactions
return [read() for _ in range(self._read_varint())]
def _read_inputs(self):
read_input = self._read_input
return [read_input() for i in range(self._read_varint())]
def _read_input(self):
return TxInput(
self._read_nbytes(32), # prev_hash
self._read_le_uint32(), # prev_idx
self._read_varbytes(), # script
self._read_le_uint32() # sequence
)
def _read_outputs(self):
read_output = self._read_output
return [read_output(n) for n in range(self._read_varint())]
def _read_output(self, n):
value = self._read_le_int64()
script = self._read_varbytes() # pk_script
decoded = txo_script_parser(script)
claim = support = pubkey_hash = script_hash = pubkey = None
if decoded:
claim, support, pubkey_hash, script_hash, pubkey = decoded
return TxOutput(n, value, script, claim, support, pubkey_hash, script_hash, pubkey)
def _read_byte(self):
cursor = self.cursor
self.cursor += 1
return self.binary[cursor]
def _read_nbytes(self, n):
cursor = self.cursor
self.cursor = end = cursor + n
assert self.binary_length >= end
return self.binary[cursor:end]
def _read_varbytes(self):
return self._read_nbytes(self._read_varint())
def _read_varint(self):
n = self.binary[self.cursor]
self.cursor += 1
if n < 253:
return n
if n == 253:
return self._read_le_uint16()
if n == 254:
return self._read_le_uint32()
return self._read_le_uint64()
def _read_le_int32(self):
result, = unpack_le_int32_from(self.binary, self.cursor)
self.cursor += 4
return result
def _read_le_int64(self):
result, = unpack_le_int64_from(self.binary, self.cursor)
self.cursor += 8
return result
def _read_le_uint16(self):
result, = unpack_le_uint16_from(self.binary, self.cursor)
self.cursor += 2
return result
def _read_le_uint32(self):
result, = unpack_le_uint32_from(self.binary, self.cursor)
self.cursor += 4
return result
def _read_le_uint64(self):
result, = unpack_le_uint64_from(self.binary, self.cursor)
self.cursor += 8
return result

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import typing
from scribe.blockchain.transaction import NameClaim, ClaimUpdate, ClaimSupport
from scribe.blockchain.transaction import unpack_le_uint16_from, unpack_le_uint32_from, pack_le_uint16, pack_le_uint32
class _OpCodes(typing.NamedTuple):
def whatis(self, value: int):
try:
return self._fields[self.index(value)]
except (ValueError, IndexError):
return -1
OP_PUSHDATA1: int = 0x4c
OP_PUSHDATA2: int = 0x4d
OP_PUSHDATA4: int = 0x4e
OP_1NEGATE: int = 0x4f
OP_RESERVED: int = 0x50
OP_1: int = 0x51
OP_2: int = 0x52
OP_3: int = 0x53
OP_4: int = 0x54
OP_5: int = 0x55
OP_6: int = 0x56
OP_7: int = 0x57
OP_8: int = 0x58
OP_9: int = 0x59
OP_10: int = 0x5a
OP_11: int = 0x5b
OP_12: int = 0x5c
OP_13: int = 0x5d
OP_14: int = 0x5e
OP_15: int = 0x5f
OP_16: int = 0x60
OP_NOP: int = 0x61
OP_VER: int = 0x62
OP_IF: int = 0x63
OP_NOTIF: int = 0x64
OP_VERIF: int = 0x65
OP_VERNOTIF: int = 0x66
OP_ELSE: int = 0x67
OP_ENDIF: int = 0x68
OP_VERIFY: int = 0x69
OP_RETURN: int = 0x6a
OP_TOALTSTACK: int = 0x6b
OP_FROMALTSTACK: int = 0x6c
OP_2DROP: int = 0x6d
OP_2DUP: int = 0x6e
OP_3DUP: int = 0x6f
OP_2OVER: int = 0x70
OP_2ROT: int = 0x71
OP_2SWAP: int = 0x72
OP_IFDUP: int = 0x73
OP_DEPTH: int = 0x74
OP_DROP: int = 0x75
OP_DUP: int = 0x76
OP_NIP: int = 0x77
OP_OVER: int = 0x78
OP_PICK: int = 0x79
OP_ROLL: int = 0x7a
OP_ROT: int = 0x7b
OP_SWAP: int = 0x7c
OP_TUCK: int = 0x7d
OP_CAT: int = 0x7e
OP_SUBSTR: int = 0x7f
OP_LEFT: int = 0x80
OP_RIGHT: int = 0x81
OP_SIZE: int = 0x82
OP_INVERT: int = 0x83
OP_AND: int = 0x84
OP_OR: int = 0x85
OP_XOR: int = 0x86
OP_EQUAL: int = 0x87
OP_EQUALVERIFY: int = 0x88
OP_RESERVED1: int = 0x89
OP_RESERVED2: int = 0x8a
OP_1ADD: int = 0x8b
OP_1SUB: int = 0x8c
OP_2MUL: int = 0x8d
OP_2DIV: int = 0x8e
OP_NEGATE: int = 0x8f
OP_ABS: int = 0x90
OP_NOT: int = 0x91
OP_0NOTEQUAL: int = 0x92
OP_ADD: int = 0x93
OP_SUB: int = 0x94
OP_MUL: int = 0x95
OP_DIV: int = 0x96
OP_MOD: int = 0x97
OP_LSHIFT: int = 0x98
OP_RSHIFT: int = 0x99
OP_BOOLAND: int = 0x9a
OP_BOOLOR: int = 0x9b
OP_NUMEQUAL: int = 0x9c
OP_NUMEQUALVERIFY: int = 0x9d
OP_NUMNOTEQUAL: int = 0x9e
OP_LESSTHAN: int = 0x9f
OP_GREATERTHAN: int = 0xa0
OP_LESSTHANOREQUAL: int = 0xa1
OP_GREATERTHANOREQUAL: int = 0xa2
OP_MIN: int = 0xa3
OP_MAX: int = 0xa4
OP_WITHIN: int = 0xa5
OP_RIPEMD160: int = 0xa6
OP_SHA1: int = 0xa7
OP_SHA256: int = 0xa8
OP_HASH160: int = 0xa9
OP_HASH256: int = 0xaa
OP_CODESEPARATOR: int = 0xab
OP_CHECKSIG: int = 0xac
OP_CHECKSIGVERIFY: int = 0xad
OP_CHECKMULTISIG: int = 0xae
OP_CHECKMULTISIGVERIFY: int = 0xaf
OP_NOP1: int = 0xb0
OP_CHECKLOCKTIMEVERIFY: int = 0xb1
OP_CHECKSEQUENCEVERIFY: int = 0xb2
OP_NOP4: int = 0xb3
OP_NOP5: int = 0xb4
OP_CLAIM_NAME: int = 0xb5
OP_SUPPORT_CLAIM: int = 0xb6
OP_UPDATE_CLAIM: int = 0xb7
OP_NOP9: int = 0xb8
OP_NOP10: int = 0xb9
OpCodes = _OpCodes()
# Paranoia to make it hard to create bad scripts
assert OpCodes.OP_DUP == 0x76
assert OpCodes.OP_HASH160 == 0xa9
assert OpCodes.OP_EQUAL == 0x87
assert OpCodes.OP_EQUALVERIFY == 0x88
assert OpCodes.OP_CHECKSIG == 0xac
assert OpCodes.OP_CHECKMULTISIG == 0xae
assert OpCodes.OP_CLAIM_NAME == 0xb5
assert OpCodes.OP_SUPPORT_CLAIM == 0xb6
assert OpCodes.OP_UPDATE_CLAIM == 0xb7
def P2SH_script(hash160_bytes: bytes):
return bytes([OpCodes.OP_HASH160]) + script_push_data(hash160_bytes) + bytes([OpCodes.OP_EQUAL])
def P2PKH_script(hash160_bytes: bytes):
return (bytes([OpCodes.OP_DUP, OpCodes.OP_HASH160])
+ script_push_data(hash160_bytes)
+ bytes([OpCodes.OP_EQUALVERIFY, OpCodes.OP_CHECKSIG]))
def script_push_data(data: bytes):
n = len(data)
if n < OpCodes.OP_PUSHDATA1:
return bytes([n]) + data
if n < 256:
return bytes([OpCodes.OP_PUSHDATA1, n]) + data
if n < 65536:
return bytes([OpCodes.OP_PUSHDATA2]) + pack_le_uint16(n) + data
return bytes([OpCodes.OP_PUSHDATA4]) + pack_le_uint32(n) + data
def script_GetOp(script_bytes: bytes):
i = 0
while i < len(script_bytes):
vch = None
opcode = script_bytes[i]
i += 1
if opcode <= OpCodes.OP_PUSHDATA4:
n_size = opcode
if opcode == OpCodes.OP_PUSHDATA1:
n_size = script_bytes[i]
i += 1
elif opcode == OpCodes.OP_PUSHDATA2:
(n_size,) = unpack_le_uint16_from(script_bytes, i)
i += 2
elif opcode == OpCodes.OP_PUSHDATA4:
(n_size,) = unpack_le_uint32_from(script_bytes, i)
i += 4
if i + n_size > len(script_bytes):
vch = b"_INVALID_" + script_bytes[i:]
i = len(script_bytes)
else:
vch = script_bytes[i:i + n_size]
i += n_size
yield opcode, vch, i
_SCRIPT_TEMPLATES = (
# claim related templates
(OpCodes.OP_CLAIM_NAME, -1, -1, OpCodes.OP_2DROP, OpCodes.OP_DROP),
(OpCodes.OP_UPDATE_CLAIM, -1, -1, OpCodes.OP_2DROP, OpCodes.OP_DROP),
(OpCodes.OP_UPDATE_CLAIM, -1, -1, -1, OpCodes.OP_2DROP, OpCodes.OP_2DROP),
(OpCodes.OP_SUPPORT_CLAIM, -1, -1, OpCodes.OP_2DROP, OpCodes.OP_DROP),
(OpCodes.OP_SUPPORT_CLAIM, -1, -1, -1, OpCodes.OP_2DROP, OpCodes.OP_2DROP),
# receive script templates
(OpCodes.OP_DUP, OpCodes.OP_HASH160, -1, OpCodes.OP_EQUALVERIFY, OpCodes.OP_CHECKSIG),
(OpCodes.OP_HASH160, -1, OpCodes.OP_EQUAL),
(-1, OpCodes.OP_CHECKSIG)
)
_CLAIM_TEMPLATE = 0
_UPDATE_NO_DATA_TEMPLATE = 1
_UPDATE_TEMPLATE = 2
_SUPPORT_TEMPLATE = 3
_SUPPORT_WITH_DATA_TEMPLATE = 4
_TO_ADDRESS_TEMPLATE = 5
_TO_P2SH_TEMPLATE = 6
_TO_PUBKEY_TEMPLATE = 7
def txo_script_parser(script: bytes):
template = None
template_idx = None
values = []
receive_values = []
finished_decoding_claim = False
receive_cur = 0
claim, support, pubkey_hash, pubkey, script_hash = None, None, None, None, None
for cur, (op, data, _) in enumerate(script_GetOp(script)):
if finished_decoding_claim: # we're decoding the receiving part of the script (the last part)
if receive_cur == 0:
if op == OpCodes.OP_DUP:
template_idx = _TO_ADDRESS_TEMPLATE
elif op == OpCodes.OP_HASH160:
template_idx = _TO_P2SH_TEMPLATE
elif op == -1:
template_idx = _TO_PUBKEY_TEMPLATE
else:
break # return the decoded part
template = _SCRIPT_TEMPLATES[template_idx]
expected = template[receive_cur]
if expected == -1 and data is None: # if data data is expected make sure it's there
# print("\texpected data", OpCodes.whatis(op), data)
return
elif expected == -1 and data:
receive_values.append(data)
elif op != expected:
# print("\top mismatch")
return
receive_cur += 1
continue
if cur == 0: # initialize the template
if op == OpCodes.OP_CLAIM_NAME:
template_idx = _CLAIM_TEMPLATE
elif op == OpCodes.OP_UPDATE_CLAIM:
template_idx = _UPDATE_NO_DATA_TEMPLATE
elif op == OpCodes.OP_SUPPORT_CLAIM:
template_idx = _SUPPORT_TEMPLATE # could be a support w/ data
elif op == OpCodes.OP_DUP:
template_idx = _TO_ADDRESS_TEMPLATE
elif op == OpCodes.OP_HASH160:
template_idx = _TO_P2SH_TEMPLATE
elif op == -1:
template_idx = _TO_PUBKEY_TEMPLATE
else:
return
template = _SCRIPT_TEMPLATES[template_idx]
elif cur == 3 and template_idx == _SUPPORT_TEMPLATE and data:
template_idx = _SUPPORT_WITH_DATA_TEMPLATE
template = _SCRIPT_TEMPLATES[template_idx]
elif cur == 3 and template_idx == _UPDATE_NO_DATA_TEMPLATE and data:
template_idx = _UPDATE_TEMPLATE
template = _SCRIPT_TEMPLATES[template_idx]
if cur >= len(template):
return
expected = template[cur]
if expected == -1 and data is None: # if data data is expected make sure it's there
# print("\texpected data", OpCodes.whatis(op), data)
return
elif expected == -1 and data:
if template_idx in (_TO_ADDRESS_TEMPLATE, _TO_P2SH_TEMPLATE, _TO_ADDRESS_TEMPLATE):
receive_values.append(data)
else:
values.append(data)
elif op != expected:
# print("\top mismatch")
return
if cur + 1 == len(template):
finished_decoding_claim = True
if template_idx == _CLAIM_TEMPLATE:
claim = NameClaim(*values)
elif template_idx in (_UPDATE_NO_DATA_TEMPLATE, _UPDATE_TEMPLATE):
claim = ClaimUpdate(*values)
elif template_idx in (_SUPPORT_TEMPLATE, _SUPPORT_WITH_DATA_TEMPLATE):
support = ClaimSupport(*values)
if template_idx == _TO_ADDRESS_TEMPLATE:
pubkey_hash = receive_values[0]
elif template_idx == _TO_P2SH_TEMPLATE:
script_hash = receive_values[0]
elif template_idx == _TO_PUBKEY_TEMPLATE:
pubkey = receive_values[0]
return claim, support, pubkey_hash, script_hash, pubkey

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# don't touch this. CI server changes this during build/deployment
BUILD = "dev"
COMMIT_HASH = "none"
DOCKER_TAG = "none"

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import logging
import traceback
import argparse
from scribe.env import Env
from scribe.blockchain.block_processor import BlockProcessor
from scribe.readers import BlockchainReaderServer, ElasticWriter
def get_arg_parser(name):
parser = argparse.ArgumentParser(
prog=name
)
Env.contribute_to_arg_parser(parser)
return parser
def setup_logging():
logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)-4s %(name)s:%(lineno)d: %(message)s")
logging.getLogger('aiohttp').setLevel(logging.WARNING)
logging.getLogger('elasticsearch').setLevel(logging.WARNING)
def run_writer_forever():
setup_logging()
args = get_arg_parser('scribe').parse_args()
try:
block_processor = BlockProcessor(Env.from_arg_parser(args))
block_processor.run()
except Exception:
traceback.print_exc()
logging.critical('scribe terminated abnormally')
else:
logging.info('scribe terminated normally')
def run_server_forever():
setup_logging()
args = get_arg_parser('scribe-hub').parse_args()
try:
server = BlockchainReaderServer(Env.from_arg_parser(args))
server.run()
except Exception:
traceback.print_exc()
logging.critical('hub terminated abnormally')
else:
logging.info('hub terminated normally')
def run_es_sync_forever():
setup_logging()
parser = get_arg_parser('scribe-elastic-sync')
parser.add_argument('--reindex', type=bool, default=False)
args = parser.parse_args()
try:
server = ElasticWriter(Env.from_arg_parser(args))
server.run(args.reindex)
except Exception:
traceback.print_exc()
logging.critical('es sync terminated abnormally')
else:
logging.info('es sync terminated normally')

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import hashlib
import hmac
import ipaddress
import logging
import typing
import collections
from asyncio import get_event_loop, Event
from prometheus_client import Counter
log = logging.getLogger(__name__)
_sha256 = hashlib.sha256
_sha512 = hashlib.sha512
_new_hash = hashlib.new
_new_hmac = hmac.new
HASHX_LEN = 11
CLAIM_HASH_LEN = 20
# class cachedproperty:
# def __init__(self, f):
# self.f = f
#
# def __get__(self, obj, type):
# obj = obj or type
# value = self.f(obj)
# setattr(obj, self.f.__name__, value)
# return value
def formatted_time(t, sep=' '):
"""Return a number of seconds as a string in days, hours, mins and
maybe secs."""
t = int(t)
fmts = (('{:d}d', 86400), ('{:02d}h', 3600), ('{:02d}m', 60))
parts = []
for fmt, n in fmts:
val = t // n
if parts or val:
parts.append(fmt.format(val))
t %= n
if len(parts) < 3:
parts.append(f'{t:02d}s')
return sep.join(parts)
def protocol_tuple(s):
"""Converts a protocol version number, such as "1.0" to a tuple (1, 0).
If the version number is bad, (0, ) indicating version 0 is returned."""
try:
return tuple(int(part) for part in s.split('.'))
except Exception:
return (0, )
def version_string(ptuple):
"""Convert a version tuple such as (1, 2) to "1.2".
There is always at least one dot, so (1, ) becomes "1.0"."""
while len(ptuple) < 2:
ptuple += (0, )
return '.'.join(str(p) for p in ptuple)
def protocol_version(client_req, min_tuple, max_tuple):
"""Given a client's protocol version string, return a pair of
protocol tuples:
(negotiated version, client min request)
If the request is unsupported, the negotiated protocol tuple is
None.
"""
if client_req is None:
client_min = client_max = min_tuple
else:
if isinstance(client_req, list) and len(client_req) == 2:
client_min, client_max = client_req
else:
client_min = client_max = client_req
client_min = protocol_tuple(client_min)
client_max = protocol_tuple(client_max)
result = min(client_max, max_tuple)
if result < max(client_min, min_tuple) or result == (0, ):
result = None
return result, client_min
class LRUCacheWithMetrics:
__slots__ = [
'capacity',
'cache',
'_track_metrics',
'hits',
'misses'
]
def __init__(self, capacity: int, metric_name: typing.Optional[str] = None, namespace: str = "daemon_cache"):
self.capacity = capacity
self.cache = collections.OrderedDict()
if metric_name is None:
self._track_metrics = False
self.hits = self.misses = None
else:
self._track_metrics = True
try:
self.hits = Counter(
f"{metric_name}_cache_hit_count", "Number of cache hits", namespace=namespace
)
self.misses = Counter(
f"{metric_name}_cache_miss_count", "Number of cache misses", namespace=namespace
)
except ValueError as err:
log.debug("failed to set up prometheus %s_cache_miss_count metric: %s", metric_name, err)
self._track_metrics = False
self.hits = self.misses = None
def get(self, key, default=None):
try:
value = self.cache.pop(key)
if self._track_metrics:
self.hits.inc()
except KeyError:
if self._track_metrics:
self.misses.inc()
return default
self.cache[key] = value
return value
def set(self, key, value):
try:
self.cache.pop(key)
except KeyError:
if len(self.cache) >= self.capacity:
self.cache.popitem(last=False)
self.cache[key] = value
def clear(self):
self.cache.clear()
def pop(self, key):
return self.cache.pop(key)
def __setitem__(self, key, value):
return self.set(key, value)
def __getitem__(self, item):
return self.get(item)
def __contains__(self, item) -> bool:
return item in self.cache
def __len__(self):
return len(self.cache)
def __delitem__(self, key):
self.cache.pop(key)
def __del__(self):
self.clear()
class LRUCache:
__slots__ = [
'capacity',
'cache'
]
def __init__(self, capacity: int):
self.capacity = capacity
self.cache = collections.OrderedDict()
def get(self, key, default=None):
try:
value = self.cache.pop(key)
except KeyError:
return default
self.cache[key] = value
return value
def set(self, key, value):
try:
self.cache.pop(key)
except KeyError:
if len(self.cache) >= self.capacity:
self.cache.popitem(last=False)
self.cache[key] = value
def items(self):
return self.cache.items()
def clear(self):
self.cache.clear()
def pop(self, key, default=None):
return self.cache.pop(key, default)
def __setitem__(self, key, value):
return self.set(key, value)
def __getitem__(self, item):
return self.get(item)
def __contains__(self, item) -> bool:
return item in self.cache
def __len__(self):
return len(self.cache)
def __delitem__(self, key):
self.cache.pop(key)
def __del__(self):
self.clear()
# the ipaddress module does not show these subnets as reserved
CARRIER_GRADE_NAT_SUBNET = ipaddress.ip_network('100.64.0.0/10')
IPV4_TO_6_RELAY_SUBNET = ipaddress.ip_network('192.88.99.0/24')
def is_valid_public_ipv4(address, allow_localhost: bool = False, allow_lan: bool = False):
try:
parsed_ip = ipaddress.ip_address(address)
if parsed_ip.is_loopback and allow_localhost:
return True
if allow_lan and parsed_ip.is_private:
return True
if any((parsed_ip.version != 4, parsed_ip.is_unspecified, parsed_ip.is_link_local, parsed_ip.is_loopback,
parsed_ip.is_multicast, parsed_ip.is_reserved, parsed_ip.is_private)):
return False
else:
return not any((CARRIER_GRADE_NAT_SUBNET.supernet_of(ipaddress.ip_network(f"{address}/32")),
IPV4_TO_6_RELAY_SUBNET.supernet_of(ipaddress.ip_network(f"{address}/32"))))
except (ipaddress.AddressValueError, ValueError):
return False
def sha256(x):
"""Simple wrapper of hashlib sha256."""
return _sha256(x).digest()
def ripemd160(x):
"""Simple wrapper of hashlib ripemd160."""
h = _new_hash('ripemd160')
h.update(x)
return h.digest()
def double_sha256(x):
"""SHA-256 of SHA-256, as used extensively in bitcoin."""
return sha256(sha256(x))
def hmac_sha512(key, msg):
"""Use SHA-512 to provide an HMAC."""
return _new_hmac(key, msg, _sha512).digest()
def hash160(x):
"""RIPEMD-160 of SHA-256. Used to make bitcoin addresses from pubkeys."""
return ripemd160(sha256(x))
def hash_to_hex_str(x: bytes) -> str:
"""Convert a big-endian binary hash to displayed hex string.
Display form of a binary hash is reversed and converted to hex.
"""
return x[::-1].hex()
def hex_str_to_hash(x: str) -> bytes:
"""Convert a displayed hex string to a binary hash."""
return bytes.fromhex(x)[::-1]
INVALID_REQUEST = -32600
INVALID_ARGS = -32602
class CodeMessageError(Exception):
@property
def code(self):
return self.args[0]
@property
def message(self):
return self.args[1]
def __eq__(self, other):
return (isinstance(other, self.__class__) and
self.code == other.code and self.message == other.message)
def __hash__(self):
# overridden to make the exception hashable
# see https://bugs.python.org/issue28603
return hash((self.code, self.message))
@classmethod
def invalid_args(cls, message):
return cls(INVALID_ARGS, message)
@classmethod
def invalid_request(cls, message):
return cls(INVALID_REQUEST, message)
@classmethod
def empty_batch(cls):
return cls.invalid_request('batch is empty')
class RPCError(CodeMessageError):
pass
class DaemonError(Exception):
"""Raised when the daemon returns an error in its results."""
class WarmingUpError(Exception):
"""Internal - when the daemon is warming up."""
class WorkQueueFullError(Exception):
"""Internal - when the daemon's work queue is full."""
class TaskGroup:
def __init__(self, loop=None):
self._loop = loop or get_event_loop()
self._tasks = set()
self.done = Event()
self.started = Event()
def __len__(self):
return len(self._tasks)
def add(self, coro):
task = self._loop.create_task(coro)
self._tasks.add(task)
self.started.set()
self.done.clear()
task.add_done_callback(self._remove)
return task
def _remove(self, task):
self._tasks.remove(task)
if len(self._tasks) < 1:
self.done.set()
self.started.clear()
def cancel(self):
for task in self._tasks:
task.cancel()
self.done.set()
self.started.clear()

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from .db import HubDB

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import typing
import enum
from typing import Optional
from scribe.error import ResolveCensoredError
@enum.unique
class DB_PREFIXES(enum.Enum):
claim_to_support = b'K'
support_to_claim = b'L'
claim_to_txo = b'E'
txo_to_claim = b'G'
claim_to_channel = b'I'
channel_to_claim = b'J'
claim_short_id_prefix = b'F'
effective_amount = b'D'
claim_expiration = b'O'
claim_takeover = b'P'
pending_activation = b'Q'
activated_claim_and_support = b'R'
active_amount = b'S'
repost = b'V'
reposted_claim = b'W'
undo = b'M'
touched_or_deleted = b'Y'
tx = b'B'
block_hash = b'C'
header = b'H'
tx_num = b'N'
tx_count = b'T'
tx_hash = b'X'
utxo = b'u'
hashx_utxo = b'h'
hashx_history = b'x'
db_state = b's'
channel_count = b'Z'
support_amount = b'a'
block_tx = b'b'
trending_notifications = b'c'
mempool_tx = b'd'
touched_hashX = b'e'
COLUMN_SETTINGS = {} # this is updated by the PrefixRow metaclass
CLAIM_TYPES = {
'stream': 1,
'channel': 2,
'repost': 3,
'collection': 4,
}
STREAM_TYPES = {
'video': 1,
'audio': 2,
'image': 3,
'document': 4,
'binary': 5,
'model': 6,
}
# 9/21/2020
MOST_USED_TAGS = {
"gaming",
"people & blogs",
"entertainment",
"music",
"pop culture",
"education",
"technology",
"blockchain",
"news",
"funny",
"science & technology",
"learning",
"gameplay",
"news & politics",
"comedy",
"bitcoin",
"beliefs",
"nature",
"art",
"economics",
"film & animation",
"lets play",
"games",
"sports",
"howto & style",
"game",
"cryptocurrency",
"playstation 4",
"automotive",
"crypto",
"mature",
"sony interactive entertainment",
"walkthrough",
"tutorial",
"video game",
"weapons",
"playthrough",
"pc",
"anime",
"how to",
"btc",
"fun",
"ethereum",
"food",
"travel & events",
"minecraft",
"science",
"autos & vehicles",
"play",
"politics",
"commentary",
"twitch",
"ps4live",
"love",
"ps4",
"nonprofits & activism",
"ps4share",
"fortnite",
"xbox",
"porn",
"video games",
"trump",
"español",
"money",
"music video",
"nintendo",
"movie",
"coronavirus",
"donald trump",
"steam",
"trailer",
"android",
"podcast",
"xbox one",
"survival",
"audio",
"linux",
"travel",
"funny moments",
"litecoin",
"animation",
"gamer",
"lets",
"playstation",
"bitcoin news",
"history",
"xxx",
"fox news",
"dance",
"god",
"adventure",
"liberal",
"2020",
"horror",
"government",
"freedom",
"reaction",
"meme",
"photography",
"truth",
"health",
"lbry",
"family",
"online",
"eth",
"crypto news",
"diy",
"trading",
"gold",
"memes",
"world",
"space",
"lol",
"covid-19",
"rpg",
"humor",
"democrat",
"film",
"call of duty",
"tech",
"religion",
"conspiracy",
"rap",
"cnn",
"hangoutsonair",
"unboxing",
"fiction",
"conservative",
"cars",
"hoa",
"epic",
"programming",
"progressive",
"cryptocurrency news",
"classical",
"jesus",
"movies",
"book",
"ps3",
"republican",
"fitness",
"books",
"multiplayer",
"animals",
"pokemon",
"bitcoin price",
"facebook",
"sharefactory",
"criptomonedas",
"cod",
"bible",
"business",
"stream",
"comics",
"how",
"fail",
"nsfw",
"new music",
"satire",
"pets & animals",
"computer",
"classical music",
"indie",
"musica",
"msnbc",
"fps",
"mod",
"sport",
"sony",
"ripple",
"auto",
"rock",
"marvel",
"complete",
"mining",
"political",
"mobile",
"pubg",
"hip hop",
"flat earth",
"xbox 360",
"reviews",
"vlogging",
"latest news",
"hack",
"tarot",
"iphone",
"media",
"cute",
"christian",
"free speech",
"trap",
"war",
"remix",
"ios",
"xrp",
"spirituality",
"song",
"league of legends",
"cat"
}
MATURE_TAGS = [
'nsfw', 'porn', 'xxx', 'mature', 'adult', 'sex'
]
def normalize_tag(tag):
return tag.replace(" ", "_").replace("&", "and").replace("-", "_")
COMMON_TAGS = {
tag: normalize_tag(tag) for tag in list(MOST_USED_TAGS)
}
INDEXED_LANGUAGES = [
'none',
'en',
'aa',
'ab',
'ae',
'af',
'ak',
'am',
'an',
'ar',
'as',
'av',
'ay',
'az',
'ba',
'be',
'bg',
'bh',
'bi',
'bm',
'bn',
'bo',
'br',
'bs',
'ca',
'ce',
'ch',
'co',
'cr',
'cs',
'cu',
'cv',
'cy',
'da',
'de',
'dv',
'dz',
'ee',
'el',
'eo',
'es',
'et',
'eu',
'fa',
'ff',
'fi',
'fj',
'fo',
'fr',
'fy',
'ga',
'gd',
'gl',
'gn',
'gu',
'gv',
'ha',
'he',
'hi',
'ho',
'hr',
'ht',
'hu',
'hy',
'hz',
'ia',
'id',
'ie',
'ig',
'ii',
'ik',
'io',
'is',
'it',
'iu',
'ja',
'jv',
'ka',
'kg',
'ki',
'kj',
'kk',
'kl',
'km',
'kn',
'ko',
'kr',
'ks',
'ku',
'kv',
'kw',
'ky',
'la',
'lb',
'lg',
'li',
'ln',
'lo',
'lt',
'lu',
'lv',
'mg',
'mh',
'mi',
'mk',
'ml',
'mn',
'mr',
'ms',
'mt',
'my',
'na',
'nb',
'nd',
'ne',
'ng',
'nl',
'nn',
'no',
'nr',
'nv',
'ny',
'oc',
'oj',
'om',
'or',
'os',
'pa',
'pi',
'pl',
'ps',
'pt',
'qu',
'rm',
'rn',
'ro',
'ru',
'rw',
'sa',
'sc',
'sd',
'se',
'sg',
'si',
'sk',
'sl',
'sm',
'sn',
'so',
'sq',
'sr',
'ss',
'st',
'su',
'sv',
'sw',
'ta',
'te',
'tg',
'th',
'ti',
'tk',
'tl',
'tn',
'to',
'tr',
'ts',
'tt',
'tw',
'ty',
'ug',
'uk',
'ur',
'uz',
've',
'vi',
'vo',
'wa',
'wo',
'xh',
'yi',
'yo',
'za',
'zh',
'zu'
]
class ResolveResult(typing.NamedTuple):
name: str
normalized_name: str
claim_hash: bytes
tx_num: int
position: int
tx_hash: bytes
height: int
amount: int
short_url: str
is_controlling: bool
canonical_url: str
creation_height: int
activation_height: int
expiration_height: int
effective_amount: int
support_amount: int
reposted: int
last_takeover_height: typing.Optional[int]
claims_in_channel: typing.Optional[int]
channel_hash: typing.Optional[bytes]
reposted_claim_hash: typing.Optional[bytes]
signature_valid: typing.Optional[bool]
class TrendingNotification(typing.NamedTuple):
height: int
prev_amount: int
new_amount: int
class UTXO(typing.NamedTuple):
tx_num: int
tx_pos: int
tx_hash: bytes
height: int
value: int
OptionalResolveResultOrError = Optional[typing.Union[ResolveResult, ResolveCensoredError, LookupError, ValueError]]
class ExpandedResolveResult(typing.NamedTuple):
stream: OptionalResolveResultOrError
channel: OptionalResolveResultOrError
repost: OptionalResolveResultOrError
reposted_channel: OptionalResolveResultOrError
class DBError(Exception):
"""Raised on general DB errors generally indicating corruption."""

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import struct
import typing
import rocksdb
from typing import Optional
from scribe.db.common import DB_PREFIXES, COLUMN_SETTINGS
from scribe.db.revertable import RevertableOpStack, RevertablePut, RevertableDelete
ROW_TYPES = {}
class PrefixRowType(type):
def __new__(cls, name, bases, kwargs):
klass = super().__new__(cls, name, bases, kwargs)
if name != "PrefixRow":
ROW_TYPES[klass.prefix] = klass
cache_size = klass.cache_size
COLUMN_SETTINGS[klass.prefix] = {
'cache_size': cache_size,
}
return klass
class PrefixRow(metaclass=PrefixRowType):
prefix: bytes
key_struct: struct.Struct
value_struct: struct.Struct
key_part_lambdas = []
cache_size: int = 1024 * 1024 * 64
def __init__(self, db: 'rocksdb.DB', op_stack: RevertableOpStack):
self._db = db
self._op_stack = op_stack
self._column_family = self._db.get_column_family(self.prefix)
if not self._column_family.is_valid:
raise RuntimeError('column family is not valid')
def iterate(self, prefix=None, start=None, stop=None, reverse: bool = False, include_key: bool = True,
include_value: bool = True, fill_cache: bool = True, deserialize_key: bool = True,
deserialize_value: bool = True):
if not prefix and not start and not stop:
prefix = ()
if prefix is not None:
prefix = self.pack_partial_key(*prefix)
if stop is None:
try:
stop = (int.from_bytes(prefix, byteorder='big') + 1).to_bytes(len(prefix), byteorder='big')
except OverflowError:
stop = (int.from_bytes(prefix, byteorder='big') + 1).to_bytes(len(prefix) + 1, byteorder='big')
else:
stop = self.pack_partial_key(*stop)
else:
if start is not None:
start = self.pack_partial_key(*start)
if stop is not None:
stop = self.pack_partial_key(*stop)
if deserialize_key:
key_getter = lambda k: self.unpack_key(k)
else:
key_getter = lambda k: k
if deserialize_value:
value_getter = lambda v: self.unpack_value(v)
else:
value_getter = lambda v: v
it = self._db.iterator(
start or prefix, self._column_family, iterate_lower_bound=(start or prefix),
iterate_upper_bound=stop, reverse=reverse, include_key=include_key,
include_value=include_value, fill_cache=fill_cache, prefix_same_as_start=False
)
if include_key and include_value:
for k, v in it:
yield key_getter(k[1]), value_getter(v)
elif include_key:
for k in it:
yield key_getter(k[1])
elif include_value:
for v in it:
yield value_getter(v)
else:
for _ in it:
yield None
def get(self, *key_args, fill_cache=True, deserialize_value=True):
v = self._db.get((self._column_family, self.pack_key(*key_args)), fill_cache=fill_cache)
if v:
return v if not deserialize_value else self.unpack_value(v)
def get_pending(self, *key_args, fill_cache=True, deserialize_value=True):
packed_key = self.pack_key(*key_args)
last_op = self._op_stack.get_last_op_for_key(packed_key)
if last_op:
if last_op.is_put:
return last_op.value if not deserialize_value else self.unpack_value(last_op.value)
else: # it's a delete
return
v = self._db.get((self._column_family, packed_key), fill_cache=fill_cache)
if v:
return v if not deserialize_value else self.unpack_value(v)
def stage_put(self, key_args=(), value_args=()):
self._op_stack.append_op(RevertablePut(self.pack_key(*key_args), self.pack_value(*value_args)))
def stage_delete(self, key_args=(), value_args=()):
self._op_stack.append_op(RevertableDelete(self.pack_key(*key_args), self.pack_value(*value_args)))
@classmethod
def pack_partial_key(cls, *args) -> bytes:
return cls.prefix + cls.key_part_lambdas[len(args)](*args)
@classmethod
def pack_key(cls, *args) -> bytes:
return cls.prefix + cls.key_struct.pack(*args)
@classmethod
def pack_value(cls, *args) -> bytes:
return cls.value_struct.pack(*args)
@classmethod
def unpack_key(cls, key: bytes):
assert key[:1] == cls.prefix, f"prefix should be {cls.prefix}, got {key[:1]}"
return cls.key_struct.unpack(key[1:])
@classmethod
def unpack_value(cls, data: bytes):
return cls.value_struct.unpack(data)
@classmethod
def unpack_item(cls, key: bytes, value: bytes):
return cls.unpack_key(key), cls.unpack_value(value)
def estimate_num_keys(self) -> int:
return int(self._db.get_property(b'rocksdb.estimate-num-keys', self._column_family).decode())
class BasePrefixDB:
"""
Base class for a revertable rocksdb database (a rocksdb db where each set of applied changes can be undone)
"""
UNDO_KEY_STRUCT = struct.Struct(b'>Q32s')
PARTIAL_UNDO_KEY_STRUCT = struct.Struct(b'>Q')
def __init__(self, path, max_open_files=64, secondary_path='', max_undo_depth: int = 200, unsafe_prefixes=None):
column_family_options = {}
for prefix in DB_PREFIXES:
settings = COLUMN_SETTINGS[prefix.value]
column_family_options[prefix.value] = rocksdb.ColumnFamilyOptions()
column_family_options[prefix.value].table_factory = rocksdb.BlockBasedTableFactory(
block_cache=rocksdb.LRUCache(settings['cache_size']),
)
self.column_families: typing.Dict[bytes, 'rocksdb.ColumnFamilyHandle'] = {}
options = rocksdb.Options(
create_if_missing=True, use_fsync=False, target_file_size_base=33554432,
max_open_files=max_open_files if not secondary_path else -1, create_missing_column_families=True
)
self._db = rocksdb.DB(
path, options, secondary_name=secondary_path, column_families=column_family_options
)
for prefix in DB_PREFIXES:
cf = self._db.get_column_family(prefix.value)
if cf is None and not secondary_path:
self._db.create_column_family(prefix.value, column_family_options[prefix.value])
cf = self._db.get_column_family(prefix.value)
self.column_families[prefix.value] = cf
self._op_stack = RevertableOpStack(self.get, unsafe_prefixes=unsafe_prefixes)
self._max_undo_depth = max_undo_depth
def unsafe_commit(self):
"""
Write staged changes to the database without keeping undo information
Changes written cannot be undone
"""
try:
if not len(self._op_stack):
return
with self._db.write_batch(sync=True) as batch:
batch_put = batch.put
batch_delete = batch.delete
get_column_family = self.column_families.__getitem__
for staged_change in self._op_stack:
column_family = get_column_family(DB_PREFIXES(staged_change.key[:1]).value)
if staged_change.is_put:
batch_put((column_family, staged_change.key), staged_change.value)
else:
batch_delete((column_family, staged_change.key))
finally:
self._op_stack.clear()
def commit(self, height: int, block_hash: bytes):
"""
Write changes for a block height to the database and keep undo information so that the changes can be reverted
"""
undo_ops = self._op_stack.get_undo_ops()
delete_undos = []
if height > self._max_undo_depth:
delete_undos.extend(self._db.iterator(
start=DB_PREFIXES.undo.value + self.PARTIAL_UNDO_KEY_STRUCT.pack(0),
iterate_upper_bound=DB_PREFIXES.undo.value + self.PARTIAL_UNDO_KEY_STRUCT.pack(height - self._max_undo_depth),
include_value=False
))
try:
undo_c_f = self.column_families[DB_PREFIXES.undo.value]
with self._db.write_batch(sync=True) as batch:
batch_put = batch.put
batch_delete = batch.delete
get_column_family = self.column_families.__getitem__
for staged_change in self._op_stack:
column_family = get_column_family(DB_PREFIXES(staged_change.key[:1]).value)
if staged_change.is_put:
batch_put((column_family, staged_change.key), staged_change.value)
else:
batch_delete((column_family, staged_change.key))
for undo_to_delete in delete_undos:
batch_delete((undo_c_f, undo_to_delete))
batch_put((undo_c_f, DB_PREFIXES.undo.value + self.UNDO_KEY_STRUCT.pack(height, block_hash)), undo_ops)
finally:
self._op_stack.clear()
def rollback(self, height: int, block_hash: bytes):
"""
Revert changes for a block height
"""
undo_key = DB_PREFIXES.undo.value + self.UNDO_KEY_STRUCT.pack(height, block_hash)
undo_c_f = self.column_families[DB_PREFIXES.undo.value]
undo_info = self._db.get((undo_c_f, undo_key))
self._op_stack.apply_packed_undo_ops(undo_info)
try:
with self._db.write_batch(sync=True) as batch:
batch_put = batch.put
batch_delete = batch.delete
get_column_family = self.column_families.__getitem__
for staged_change in self._op_stack:
column_family = get_column_family(DB_PREFIXES(staged_change.key[:1]).value)
if staged_change.is_put:
batch_put((column_family, staged_change.key), staged_change.value)
else:
batch_delete((column_family, staged_change.key))
# batch_delete(undo_key)
finally:
self._op_stack.clear()
def get(self, key: bytes, fill_cache: bool = True) -> Optional[bytes]:
cf = self.column_families[key[:1]]
return self._db.get((cf, key), fill_cache=fill_cache)
def iterator(self, start: bytes, column_family: 'rocksdb.ColumnFamilyHandle' = None,
iterate_lower_bound: bytes = None, iterate_upper_bound: bytes = None,
reverse: bool = False, include_key: bool = True, include_value: bool = True,
fill_cache: bool = True, prefix_same_as_start: bool = False, auto_prefix_mode: bool = True):
return self._db.iterator(
start=start, column_family=column_family, iterate_lower_bound=iterate_lower_bound,
iterate_upper_bound=iterate_upper_bound, reverse=reverse, include_key=include_key,
include_value=include_value, fill_cache=fill_cache, prefix_same_as_start=prefix_same_as_start,
auto_prefix_mode=auto_prefix_mode
)
def close(self):
self._db.close()
def try_catch_up_with_primary(self):
self._db.try_catch_up_with_primary()
def stage_raw_put(self, key: bytes, value: bytes):
self._op_stack.append_op(RevertablePut(key, value))
def stage_raw_delete(self, key: bytes, value: bytes):
self._op_stack.append_op(RevertableDelete(key, value))
def estimate_num_keys(self, column_family: 'rocksdb.ColumnFamilyHandle' = None):
return int(self._db.get_property(b'rocksdb.estimate-num-keys', column_family).decode())

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# Copyright (c) 2018, Neil Booth
#
# All rights reserved.
#
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
# and warranty status of this software.
"""Merkle trees, branches, proofs and roots."""
from asyncio import Event
from math import ceil, log
from scribe.common import double_sha256
class Merkle:
"""Perform merkle tree calculations on binary hashes using a given hash
function.
If the hash count is not even, the final hash is repeated when
calculating the next merkle layer up the tree.
"""
def __init__(self, hash_func=double_sha256):
self.hash_func = hash_func
@staticmethod
def tree_depth(hash_count):
return Merkle.branch_length(hash_count) + 1
@staticmethod
def branch_length(hash_count):
"""Return the length of a merkle branch given the number of hashes."""
if not isinstance(hash_count, int):
raise TypeError('hash_count must be an integer')
if hash_count < 1:
raise ValueError('hash_count must be at least 1')
return ceil(log(hash_count, 2))
@staticmethod
def branch_and_root(hashes, index, length=None, hash_func=double_sha256):
"""Return a (merkle branch, merkle_root) pair given hashes, and the
index of one of those hashes.
"""
hashes = list(hashes)
if not isinstance(index, int):
raise TypeError('index must be an integer')
# This also asserts hashes is not empty
if not 0 <= index < len(hashes):
raise ValueError(f"index '{index}/{len(hashes)}' out of range")
natural_length = Merkle.branch_length(len(hashes))
if length is None:
length = natural_length
else:
if not isinstance(length, int):
raise TypeError('length must be an integer')
if length < natural_length:
raise ValueError('length out of range')
branch = []
for _ in range(length):
if len(hashes) & 1:
hashes.append(hashes[-1])
branch.append(hashes[index ^ 1])
index >>= 1
hashes = [hash_func(hashes[n] + hashes[n + 1])
for n in range(0, len(hashes), 2)]
return branch, hashes[0]
@staticmethod
def root(hashes, length=None):
"""Return the merkle root of a non-empty iterable of binary hashes."""
branch, root = Merkle.branch_and_root(hashes, 0, length)
return root
# @staticmethod
# def root_from_proof(hash, branch, index, hash_func=double_sha256):
# """Return the merkle root given a hash, a merkle branch to it, and
# its index in the hashes array.
#
# branch is an iterable sorted deepest to shallowest. If the
# returned root is the expected value then the merkle proof is
# verified.
#
# The caller should have confirmed the length of the branch with
# branch_length(). Unfortunately this is not easily done for
# bitcoin transactions as the number of transactions in a block
# is unknown to an SPV client.
# """
# for elt in branch:
# if index & 1:
# hash = hash_func(elt + hash)
# else:
# hash = hash_func(hash + elt)
# index >>= 1
# if index:
# raise ValueError('index out of range for branch')
# return hash
@staticmethod
def level(hashes, depth_higher):
"""Return a level of the merkle tree of hashes the given depth
higher than the bottom row of the original tree."""
size = 1 << depth_higher
root = Merkle.root
return [root(hashes[n: n + size], depth_higher)
for n in range(0, len(hashes), size)]
@staticmethod
def branch_and_root_from_level(level, leaf_hashes, index,
depth_higher):
"""Return a (merkle branch, merkle_root) pair when a merkle-tree has a
level cached.
To maximally reduce the amount of data hashed in computing a
markle branch, cache a tree of depth N at level N // 2.
level is a list of hashes in the middle of the tree (returned
by level())
leaf_hashes are the leaves needed to calculate a partial branch
up to level.
depth_higher is how much higher level is than the leaves of the tree
index is the index in the full list of hashes of the hash whose
merkle branch we want.
"""
if not isinstance(level, list):
raise TypeError("level must be a list")
if not isinstance(leaf_hashes, list):
raise TypeError("leaf_hashes must be a list")
leaf_index = (index >> depth_higher) << depth_higher
leaf_branch, leaf_root = Merkle.branch_and_root(
leaf_hashes, index - leaf_index, depth_higher)
index >>= depth_higher
level_branch, root = Merkle.branch_and_root(level, index)
# Check last so that we know index is in-range
if leaf_root != level[index]:
raise ValueError('leaf hashes inconsistent with level')
return leaf_branch + level_branch, root
class MerkleCache:
"""A cache to calculate merkle branches efficiently."""
def __init__(self, merkle, source_func):
"""Initialise a cache hashes taken from source_func:
async def source_func(index, count):
...
"""
self.merkle = merkle
self.source_func = source_func
self.length = 0
self.depth_higher = 0
self.initialized = Event()
def _segment_length(self):
return 1 << self.depth_higher
def _leaf_start(self, index):
"""Given a level's depth higher and a hash index, return the leaf
index and leaf hash count needed to calculate a merkle branch.
"""
depth_higher = self.depth_higher
return (index >> depth_higher) << depth_higher
def _level(self, hashes):
return self.merkle.level(hashes, self.depth_higher)
async def _extend_to(self, length):
"""Extend the length of the cache if necessary."""
if length <= self.length:
return
# Start from the beginning of any final partial segment.
# Retain the value of depth_higher; in practice this is fine
start = self._leaf_start(self.length)
hashes = await self.source_func(start, length - start)
self.level[start >> self.depth_higher:] = self._level(hashes)
self.length = length
async def _level_for(self, length):
"""Return a (level_length, final_hash) pair for a truncation
of the hashes to the given length."""
if length == self.length:
return self.level
level = self.level[:length >> self.depth_higher]
leaf_start = self._leaf_start(length)
count = min(self._segment_length(), length - leaf_start)
hashes = await self.source_func(leaf_start, count)
level += self._level(hashes)
return level
async def initialize(self, length):
"""Call to initialize the cache to a source of given length."""
self.length = length
self.depth_higher = self.merkle.tree_depth(length) // 2
self.level = self._level(await self.source_func(0, length))
self.initialized.set()
def truncate(self, length):
"""Truncate the cache so it covers no more than length underlying
hashes."""
if not isinstance(length, int):
raise TypeError('length must be an integer')
if length <= 0:
raise ValueError('length must be positive')
if length >= self.length:
return
length = self._leaf_start(length)
self.length = length
self.level[length >> self.depth_higher:] = []
async def branch_and_root(self, length, index):
"""Return a merkle branch and root. Length is the number of
hashes used to calculate the merkle root, index is the position
of the hash to calculate the branch of.
index must be less than length, which must be at least 1."""
if not isinstance(length, int):
raise TypeError('length must be an integer')
if not isinstance(index, int):
raise TypeError('index must be an integer')
if length <= 0:
raise ValueError('length must be positive')
if index >= length:
raise ValueError('index must be less than length')
await self.initialized.wait()
await self._extend_to(length)
leaf_start = self._leaf_start(index)
count = min(self._segment_length(), length - leaf_start)
leaf_hashes = await self.source_func(leaf_start, count)
if length < self._segment_length():
return self.merkle.branch_and_root(leaf_hashes, index)
level = await self._level_for(length)
return self.merkle.branch_and_root_from_level(
level, leaf_hashes, index, self.depth_higher)

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import struct
import logging
from string import printable
from collections import defaultdict
from typing import Tuple, Iterable, Callable, Optional
from scribe.db.common import DB_PREFIXES
_OP_STRUCT = struct.Struct('>BLL')
log = logging.getLogger(__name__)
class RevertableOp:
__slots__ = [
'key',
'value',
]
is_put = 0
def __init__(self, key: bytes, value: bytes):
self.key = key
self.value = value
@property
def is_delete(self) -> bool:
return not self.is_put
def invert(self) -> 'RevertableOp':
raise NotImplementedError()
def pack(self) -> bytes:
"""
Serialize to bytes
"""
return struct.pack(
f'>BLL{len(self.key)}s{len(self.value)}s', int(self.is_put), len(self.key), len(self.value), self.key,
self.value
)
@classmethod
def unpack(cls, packed: bytes) -> Tuple['RevertableOp', bytes]:
"""
Deserialize from bytes
:param packed: bytes containing at least one packed revertable op
:return: tuple of the deserialized op (a put or a delete) and the remaining serialized bytes
"""
is_put, key_len, val_len = _OP_STRUCT.unpack(packed[:9])
key = packed[9:9 + key_len]
value = packed[9 + key_len:9 + key_len + val_len]
if is_put == 1:
return RevertablePut(key, value), packed[9 + key_len + val_len:]
return RevertableDelete(key, value), packed[9 + key_len + val_len:]
def __eq__(self, other: 'RevertableOp') -> bool:
return (self.is_put, self.key, self.value) == (other.is_put, other.key, other.value)
def __repr__(self) -> str:
return str(self)
def __str__(self) -> str:
from scribe.db.prefixes import auto_decode_item
k, v = auto_decode_item(self.key, self.value)
key = ''.join(c if c in printable else '.' for c in str(k))
val = ''.join(c if c in printable else '.' for c in str(v))
return f"{'PUT' if self.is_put else 'DELETE'} {DB_PREFIXES(self.key[:1]).name}: {key} | {val}"
class RevertableDelete(RevertableOp):
def invert(self):
return RevertablePut(self.key, self.value)
class RevertablePut(RevertableOp):
is_put = True
def invert(self):
return RevertableDelete(self.key, self.value)
class OpStackIntegrity(Exception):
pass
class RevertableOpStack:
def __init__(self, get_fn: Callable[[bytes], Optional[bytes]], unsafe_prefixes=None):
"""
This represents a sequence of revertable puts and deletes to a key-value database that checks for integrity
violations when applying the puts and deletes. The integrity checks assure that keys that do not exist
are not deleted, and that when keys are deleted the current value is correctly known so that the delete
may be undone. When putting values, the integrity checks assure that existing values are not overwritten
without first being deleted. Updates are performed by applying a delete op for the old value and a put op
for the new value.
:param get_fn: getter function from an object implementing `KeyValueStorage`
:param unsafe_prefixes: optional set of prefixes to ignore integrity errors for, violations are still logged
"""
self._get = get_fn
self._items = defaultdict(list)
self._unsafe_prefixes = unsafe_prefixes or set()
def append_op(self, op: RevertableOp):
"""
Apply a put or delete op, checking that it introduces no integrity errors
"""
inverted = op.invert()
if self._items[op.key] and inverted == self._items[op.key][-1]:
self._items[op.key].pop() # if the new op is the inverse of the last op, we can safely null both
return
elif self._items[op.key] and self._items[op.key][-1] == op: # duplicate of last op
return # raise an error?
stored_val = self._get(op.key)
has_stored_val = stored_val is not None
delete_stored_op = None if not has_stored_val else RevertableDelete(op.key, stored_val)
will_delete_existing_stored = False if delete_stored_op is None else (delete_stored_op in self._items[op.key])
try:
if op.is_put and has_stored_val and not will_delete_existing_stored:
raise OpStackIntegrity(
f"db op tries to add on top of existing key without deleting first: {op}"
)
elif op.is_delete and has_stored_val and stored_val != op.value and not will_delete_existing_stored:
# there is a value and we're not deleting it in this op
# check that a delete for the stored value is in the stack
raise OpStackIntegrity(f"db op tries to delete with incorrect existing value {op}")
elif op.is_delete and not has_stored_val:
raise OpStackIntegrity(f"db op tries to delete nonexistent key: {op}")
elif op.is_delete and stored_val != op.value:
raise OpStackIntegrity(f"db op tries to delete with incorrect value: {op}")
except OpStackIntegrity as err:
if op.key[:1] in self._unsafe_prefixes:
log.debug(f"skipping over integrity error: {err}")
else:
raise err
self._items[op.key].append(op)
def extend_ops(self, ops: Iterable[RevertableOp]):
"""
Apply a sequence of put or delete ops, checking that they introduce no integrity errors
"""
for op in ops:
self.append_op(op)
def clear(self):
self._items.clear()
def __len__(self):
return sum(map(len, self._items.values()))
def __iter__(self):
for key, ops in self._items.items():
for op in ops:
yield op
def __reversed__(self):
for key, ops in self._items.items():
for op in reversed(ops):
yield op
def get_undo_ops(self) -> bytes:
"""
Get the serialized bytes to undo all of the changes made by the pending ops
"""
return b''.join(op.invert().pack() for op in reversed(self))
def apply_packed_undo_ops(self, packed: bytes):
"""
Unpack and apply a sequence of undo ops from serialized undo bytes
"""
while packed:
op, packed = RevertableOp.unpack(packed)
self.append_op(op)
def get_last_op_for_key(self, key: bytes) -> Optional[RevertableOp]:
if key in self._items and self._items[key]:
return self._items[key][-1]

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from .search import SearchIndex
from .notifier_protocol import ElasticNotifierClientProtocol

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INDEX_DEFAULT_SETTINGS = {
"settings":
{"analysis":
{"analyzer": {
"default": {"tokenizer": "whitespace", "filter": ["lowercase", "porter_stem"]}}},
"index":
{"refresh_interval": -1,
"number_of_shards": 1,
"number_of_replicas": 0,
"sort": {
"field": ["trending_score", "release_time"],
"order": ["desc", "desc"]
}}
},
"mappings": {
"properties": {
"claim_id": {
"fields": {
"keyword": {
"ignore_above": 256,
"type": "keyword"
}
},
"type": "text",
"index_prefixes": {
"min_chars": 1,
"max_chars": 10
}
},
"sd_hash": {
"fields": {
"keyword": {
"ignore_above": 96,
"type": "keyword"
}
},
"type": "text",
"index_prefixes": {
"min_chars": 1,
"max_chars": 4
}
},
"height": {"type": "integer"},
"claim_type": {"type": "byte"},
"censor_type": {"type": "byte"},
"trending_score": {"type": "double"},
"release_time": {"type": "long"}
}
}
}
FIELDS = {
'_id',
'claim_id', 'claim_type', 'claim_name', 'normalized_name',
'tx_id', 'tx_nout', 'tx_position',
'short_url', 'canonical_url',
'is_controlling', 'last_take_over_height',
'public_key_bytes', 'public_key_id', 'claims_in_channel',
'channel_id', 'signature', 'signature_digest', 'is_signature_valid',
'amount', 'effective_amount', 'support_amount',
'fee_amount', 'fee_currency',
'height', 'creation_height', 'activation_height', 'expiration_height',
'stream_type', 'media_type', 'censor_type',
'title', 'author', 'description',
'timestamp', 'creation_timestamp',
'duration', 'release_time',
'tags', 'languages', 'has_source', 'reposted_claim_type',
'reposted_claim_id', 'repost_count', 'sd_hash',
'trending_score', 'tx_num'
}
TEXT_FIELDS = {'author', 'canonical_url', 'channel_id', 'description', 'claim_id', 'censoring_channel_id',
'media_type', 'normalized_name', 'public_key_bytes', 'public_key_id', 'short_url', 'signature',
'claim_name', 'signature_digest', 'title', 'tx_id', 'fee_currency', 'reposted_claim_id',
'tags', 'sd_hash'}
RANGE_FIELDS = {
'height', 'creation_height', 'activation_height', 'expiration_height',
'timestamp', 'creation_timestamp', 'duration', 'release_time', 'fee_amount',
'tx_position', 'repost_count', 'limit_claims_per_channel',
'amount', 'effective_amount', 'support_amount',
'trending_score', 'censor_type', 'tx_num'
}
ALL_FIELDS = RANGE_FIELDS | TEXT_FIELDS | FIELDS
REPLACEMENTS = {
'claim_name': 'normalized_name',
'name': 'normalized_name',
'txid': 'tx_id',
'nout': 'tx_nout',
'trending_group': 'trending_score',
'trending_mixed': 'trending_score',
'trending_global': 'trending_score',
'trending_local': 'trending_score',
'reposted': 'repost_count',
'stream_types': 'stream_type',
'media_types': 'media_type',
'valid_channel_signature': 'is_signature_valid'
}

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FAST_AR_TRENDING_SCRIPT = """
double softenLBC(double lbc) { return (Math.pow(lbc, 1.0 / 3.0)); }
double logsumexp(double x, double y)
{
double top;
if(x > y)
top = x;
else
top = y;
double result = top + Math.log(Math.exp(x-top) + Math.exp(y-top));
return(result);
}
double logdiffexp(double big, double small)
{
return big + Math.log(1.0 - Math.exp(small - big));
}
double squash(double x)
{
if(x < 0.0)
return -Math.log(1.0 - x);
else
return Math.log(x + 1.0);
}
double unsquash(double x)
{
if(x < 0.0)
return 1.0 - Math.exp(-x);
else
return Math.exp(x) - 1.0;
}
double log_to_squash(double x)
{
return logsumexp(x, 0.0);
}
double squash_to_log(double x)
{
//assert x > 0.0;
return logdiffexp(x, 0.0);
}
double squashed_add(double x, double y)
{
// squash(unsquash(x) + unsquash(y)) but avoiding overflow.
// Cases where the signs are the same
if (x < 0.0 && y < 0.0)
return -logsumexp(-x, logdiffexp(-y, 0.0));
if (x >= 0.0 && y >= 0.0)
return logsumexp(x, logdiffexp(y, 0.0));
// Where the signs differ
if (x >= 0.0 && y < 0.0)
if (Math.abs(x) >= Math.abs(y))
return logsumexp(0.0, logdiffexp(x, -y));
else
return -logsumexp(0.0, logdiffexp(-y, x));
if (x < 0.0 && y >= 0.0)
{
// Addition is commutative, hooray for new math
return squashed_add(y, x);
}
return 0.0;
}
double squashed_multiply(double x, double y)
{
// squash(unsquash(x)*unsquash(y)) but avoiding overflow.
int sign;
if(x*y >= 0.0)
sign = 1;
else
sign = -1;
return sign*logsumexp(squash_to_log(Math.abs(x))
+ squash_to_log(Math.abs(y)), 0.0);
}
// Squashed inflated units
double inflateUnits(int height) {
double timescale = 576.0; // Half life of 400 = e-folding time of a day
// by coincidence, so may as well go with it
return log_to_squash(height / timescale);
}
double spikePower(double newAmount) {
if (newAmount < 50.0) {
return(0.5);
} else if (newAmount < 85.0) {
return(newAmount / 100.0);
} else {
return(0.85);
}
}
double spikeMass(double oldAmount, double newAmount) {
double softenedChange = softenLBC(Math.abs(newAmount - oldAmount));
double changeInSoftened = Math.abs(softenLBC(newAmount) - softenLBC(oldAmount));
double power = spikePower(newAmount);
if (oldAmount > newAmount) {
-1.0 * Math.pow(changeInSoftened, power) * Math.pow(softenedChange, 1.0 - power)
} else {
Math.pow(changeInSoftened, power) * Math.pow(softenedChange, 1.0 - power)
}
}
for (i in params.src.changes) {
double units = inflateUnits(i.height);
if (ctx._source.trending_score == null) {
ctx._source.trending_score = 0.0;
}
double bigSpike = squashed_multiply(units, squash(spikeMass(i.prev_amount, i.new_amount)));
ctx._source.trending_score = squashed_add(ctx._source.trending_score, bigSpike);
}
"""

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import typing
import struct
import asyncio
import logging
log = logging.getLogger(__name__)
class ElasticNotifierProtocol(asyncio.Protocol):
"""notifies the reader when ES has written updates"""
def __init__(self, listeners):
self._listeners = listeners
self.transport: typing.Optional[asyncio.Transport] = None
def connection_made(self, transport):
self.transport = transport
self._listeners.append(self)
log.info("got es notifier connection")
def connection_lost(self, exc) -> None:
self._listeners.remove(self)
self.transport = None
def send_height(self, height: int, block_hash: bytes):
log.info("notify es update '%s'", height)
self.transport.write(struct.pack(b'>Q32s', height, block_hash))
class ElasticNotifierClientProtocol(asyncio.Protocol):
"""notifies the reader when ES has written updates"""
def __init__(self, notifications: asyncio.Queue):
self.notifications = notifications
self.transport: typing.Optional[asyncio.Transport] = None
def close(self):
if self.transport and not self.transport.is_closing():
self.transport.close()
def connection_made(self, transport):
self.transport = transport
log.info("connected to es notifier")
def connection_lost(self, exc) -> None:
self.transport = None
def data_received(self, data: bytes) -> None:
try:
height, block_hash = struct.unpack(b'>Q32s', data)
except:
log.exception("failed to decode %s", (data or b'').hex())
raise
self.notifications.put_nowait((height, block_hash))

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import logging
import time
import asyncio
import struct
from binascii import unhexlify
from collections import Counter, deque
from decimal import Decimal
from operator import itemgetter
from typing import Optional, List, Iterable
from elasticsearch import AsyncElasticsearch, NotFoundError, ConnectionError
from elasticsearch.helpers import async_streaming_bulk
from scribe.schema.result import Outputs, Censor
from scribe.schema.tags import clean_tags
from scribe.schema.url import normalize_name
from scribe.error import TooManyClaimSearchParametersError
from scribe.common import LRUCache
from scribe.db.common import CLAIM_TYPES, STREAM_TYPES
from scribe.elasticsearch.constants import INDEX_DEFAULT_SETTINGS, REPLACEMENTS, FIELDS, TEXT_FIELDS, \
RANGE_FIELDS, ALL_FIELDS
from scribe.db.common import ResolveResult
def expand_query(**kwargs):
if "amount_order" in kwargs:
kwargs["limit"] = 1
kwargs["order_by"] = "effective_amount"
kwargs["offset"] = int(kwargs["amount_order"]) - 1
if 'name' in kwargs:
kwargs['name'] = normalize_name(kwargs.pop('name'))
if kwargs.get('is_controlling') is False:
kwargs.pop('is_controlling')
query = {'must': [], 'must_not': []}
collapse = None
if 'fee_currency' in kwargs and kwargs['fee_currency'] is not None:
kwargs['fee_currency'] = kwargs['fee_currency'].upper()
for key, value in kwargs.items():
key = key.replace('claim.', '')
many = key.endswith('__in') or isinstance(value, list)
if many and len(value) > 2048:
raise TooManyClaimSearchParametersError(key, 2048)
if many:
key = key.replace('__in', '')
value = list(filter(None, value))
if value is None or isinstance(value, list) and len(value) == 0:
continue
key = REPLACEMENTS.get(key, key)
if key in FIELDS:
partial_id = False
if key == 'claim_type':
if isinstance(value, str):
value = CLAIM_TYPES[value]
else:
value = [CLAIM_TYPES[claim_type] for claim_type in value]
elif key == 'stream_type':
value = [STREAM_TYPES[value]] if isinstance(value, str) else list(map(STREAM_TYPES.get, value))
if key == '_id':
if isinstance(value, Iterable):
value = [item[::-1].hex() for item in value]
else:
value = value[::-1].hex()
if not many and key in ('_id', 'claim_id') and len(value) < 20:
partial_id = True
if key in ('signature_valid', 'has_source'):
continue # handled later
if key in TEXT_FIELDS:
key += '.keyword'
ops = {'<=': 'lte', '>=': 'gte', '<': 'lt', '>': 'gt'}
if partial_id:
query['must'].append({"prefix": {"claim_id": value}})
elif key in RANGE_FIELDS and isinstance(value, str) and value[0] in ops:
operator_length = 2 if value[:2] in ops else 1
operator, value = value[:operator_length], value[operator_length:]
if key == 'fee_amount':
value = str(Decimal(value)*1000)
query['must'].append({"range": {key: {ops[operator]: value}}})
elif many:
query['must'].append({"terms": {key: value}})
else:
if key == 'fee_amount':
value = str(Decimal(value)*1000)
query['must'].append({"term": {key: {"value": value}}})
elif key == 'not_channel_ids':
for channel_id in value:
query['must_not'].append({"term": {'channel_id.keyword': channel_id}})
query['must_not'].append({"term": {'_id': channel_id}})
elif key == 'channel_ids':
query['must'].append({"terms": {'channel_id.keyword': value}})
elif key == 'claim_ids':
query['must'].append({"terms": {'claim_id.keyword': value}})
elif key == 'media_types':
query['must'].append({"terms": {'media_type.keyword': value}})
elif key == 'any_languages':
query['must'].append({"terms": {'languages': clean_tags(value)}})
elif key == 'any_languages':
query['must'].append({"terms": {'languages': value}})
elif key == 'all_languages':
query['must'].extend([{"term": {'languages': tag}} for tag in value])
elif key == 'any_tags':
query['must'].append({"terms": {'tags.keyword': clean_tags(value)}})
elif key == 'all_tags':
query['must'].extend([{"term": {'tags.keyword': tag}} for tag in clean_tags(value)])
elif key == 'not_tags':
query['must_not'].extend([{"term": {'tags.keyword': tag}} for tag in clean_tags(value)])
elif key == 'not_claim_id':
query['must_not'].extend([{"term": {'claim_id.keyword': cid}} for cid in value])
elif key == 'limit_claims_per_channel':
collapse = ('channel_id.keyword', value)
if kwargs.get('has_channel_signature'):
query['must'].append({"exists": {"field": "signature"}})
if 'signature_valid' in kwargs:
query['must'].append({"term": {"is_signature_valid": bool(kwargs["signature_valid"])}})
elif 'signature_valid' in kwargs:
query.setdefault('should', [])
query["minimum_should_match"] = 1
query['should'].append({"bool": {"must_not": {"exists": {"field": "signature"}}}})
query['should'].append({"term": {"is_signature_valid": bool(kwargs["signature_valid"])}})
if 'has_source' in kwargs:
query.setdefault('should', [])
query["minimum_should_match"] = 1
is_stream_or_repost = {"terms": {"claim_type": [CLAIM_TYPES['stream'], CLAIM_TYPES['repost']]}}
query['should'].append(
{"bool": {"must": [{"match": {"has_source": kwargs['has_source']}}, is_stream_or_repost]}})
query['should'].append({"bool": {"must_not": [is_stream_or_repost]}})
query['should'].append({"bool": {"must": [{"term": {"reposted_claim_type": CLAIM_TYPES['channel']}}]}})
if kwargs.get('text'):
query['must'].append(
{"simple_query_string":
{"query": kwargs["text"], "fields": [
"claim_name^4", "channel_name^8", "title^1", "description^.5", "author^1", "tags^.5"
]}})
query = {
"_source": {"excludes": ["description", "title"]},
'query': {'bool': query},
"sort": [],
}
if "limit" in kwargs:
query["size"] = kwargs["limit"]
if 'offset' in kwargs:
query["from"] = kwargs["offset"]
if 'order_by' in kwargs:
if isinstance(kwargs["order_by"], str):
kwargs["order_by"] = [kwargs["order_by"]]
for value in kwargs['order_by']:
if 'trending_group' in value:
# fixme: trending_mixed is 0 for all records on variable decay, making sort slow.
continue
is_asc = value.startswith('^')
value = value[1:] if is_asc else value
value = REPLACEMENTS.get(value, value)
if value in TEXT_FIELDS:
value += '.keyword'
query['sort'].append({value: "asc" if is_asc else "desc"})
if collapse:
query["collapse"] = {
"field": collapse[0],
"inner_hits": {
"name": collapse[0],
"size": collapse[1],
"sort": query["sort"]
}
}
return query
class ChannelResolution(str):
@classmethod
def lookup_error(cls, url):
return LookupError(f'Could not find channel in "{url}".')
class StreamResolution(str):
@classmethod
def lookup_error(cls, url):
return LookupError(f'Could not find claim at "{url}".')
class IndexVersionMismatch(Exception):
def __init__(self, got_version, expected_version):
self.got_version = got_version
self.expected_version = expected_version
class SearchIndex:
VERSION = 1
def __init__(self, index_prefix: str, search_timeout=3.0, elastic_host='localhost', elastic_port=9200):
self.search_timeout = search_timeout
self.sync_timeout = 600 # wont hit that 99% of the time, but can hit on a fresh import
self.search_client: Optional[AsyncElasticsearch] = None
self.sync_client: Optional[AsyncElasticsearch] = None
self.index = index_prefix + 'claims'
self.logger = logging.getLogger(__name__)
self.claim_cache = LRUCache(2 ** 15)
self.search_cache = LRUCache(2 ** 17)
self._elastic_host = elastic_host
self._elastic_port = elastic_port
async def get_index_version(self) -> int:
try:
template = await self.sync_client.indices.get_template(self.index)
return template[self.index]['version']
except NotFoundError:
return 0
async def set_index_version(self, version):
await self.sync_client.indices.put_template(
self.index, body={'version': version, 'index_patterns': ['ignored']}, ignore=400
)
async def start(self) -> bool:
if self.sync_client:
return False
hosts = [{'host': self._elastic_host, 'port': self._elastic_port}]
self.sync_client = AsyncElasticsearch(hosts, timeout=self.sync_timeout)
self.search_client = AsyncElasticsearch(hosts, timeout=self.search_timeout)
while True:
try:
await self.sync_client.cluster.health(wait_for_status='yellow')
break
except ConnectionError:
self.logger.warning("Failed to connect to Elasticsearch. Waiting for it!")
await asyncio.sleep(1)
res = await self.sync_client.indices.create(self.index, INDEX_DEFAULT_SETTINGS, ignore=400)
acked = res.get('acknowledged', False)
if acked:
await self.set_index_version(self.VERSION)
return acked
index_version = await self.get_index_version()
if index_version != self.VERSION:
self.logger.error("es search index has an incompatible version: %s vs %s", index_version, self.VERSION)
raise IndexVersionMismatch(index_version, self.VERSION)
await self.sync_client.indices.refresh(self.index)
return acked
async def stop(self):
clients = [c for c in (self.sync_client, self.search_client) if c is not None]
self.sync_client, self.search_client = None, None
if clients:
await asyncio.gather(*(client.close() for client in clients))
def delete_index(self):
return self.sync_client.indices.delete(self.index, ignore_unavailable=True)
async def _consume_claim_producer(self, claim_producer):
count = 0
async for op, doc in claim_producer:
if op == 'delete':
yield {
'_index': self.index,
'_op_type': 'delete',
'_id': doc
}
else:
yield {
'doc': {key: value for key, value in doc.items() if key in ALL_FIELDS},
'_id': doc['claim_id'],
'_index': self.index,
'_op_type': 'update',
'doc_as_upsert': True
}
count += 1
if count % 100 == 0:
self.logger.info("Indexing in progress, %d claims.", count)
if count:
self.logger.info("Indexing done for %d claims.", count)
else:
self.logger.debug("Indexing done for %d claims.", count)
async def claim_consumer(self, claim_producer):
touched = set()
async for ok, item in async_streaming_bulk(self.sync_client, self._consume_claim_producer(claim_producer),
raise_on_error=False):
if not ok:
self.logger.warning("indexing failed for an item: %s", item)
else:
item = item.popitem()[1]
touched.add(item['_id'])
await self.sync_client.indices.refresh(self.index)
self.logger.debug("Indexing done.")
def update_filter_query(self, censor_type, blockdict, channels=False):
blockdict = {blocked.hex(): blocker.hex() for blocked, blocker in blockdict.items()}
if channels:
update = expand_query(channel_id__in=list(blockdict.keys()), censor_type=f"<{censor_type}")
else:
update = expand_query(claim_id__in=list(blockdict.keys()), censor_type=f"<{censor_type}")
key = 'channel_id' if channels else 'claim_id'
update['script'] = {
"source": f"ctx._source.censor_type={censor_type}; "
f"ctx._source.censoring_channel_id=params[ctx._source.{key}];",
"lang": "painless",
"params": blockdict
}
return update
async def update_trending_score(self, params):
update_trending_score_script = """
double softenLBC(double lbc) { return (Math.pow(lbc, 1.0 / 3.0)); }
double logsumexp(double x, double y)
{
double top;
if(x > y)
top = x;
else
top = y;
double result = top + Math.log(Math.exp(x-top) + Math.exp(y-top));
return(result);
}
double logdiffexp(double big, double small)
{
return big + Math.log(1.0 - Math.exp(small - big));
}
double squash(double x)
{
if(x < 0.0)
return -Math.log(1.0 - x);
else
return Math.log(x + 1.0);
}
double unsquash(double x)
{
if(x < 0.0)
return 1.0 - Math.exp(-x);
else
return Math.exp(x) - 1.0;
}
double log_to_squash(double x)
{
return logsumexp(x, 0.0);
}
double squash_to_log(double x)
{
//assert x > 0.0;
return logdiffexp(x, 0.0);
}
double squashed_add(double x, double y)
{
// squash(unsquash(x) + unsquash(y)) but avoiding overflow.
// Cases where the signs are the same
if (x < 0.0 && y < 0.0)
return -logsumexp(-x, logdiffexp(-y, 0.0));
if (x >= 0.0 && y >= 0.0)
return logsumexp(x, logdiffexp(y, 0.0));
// Where the signs differ
if (x >= 0.0 && y < 0.0)
if (Math.abs(x) >= Math.abs(y))
return logsumexp(0.0, logdiffexp(x, -y));
else
return -logsumexp(0.0, logdiffexp(-y, x));
if (x < 0.0 && y >= 0.0)
{
// Addition is commutative, hooray for new math
return squashed_add(y, x);
}
return 0.0;
}
double squashed_multiply(double x, double y)
{
// squash(unsquash(x)*unsquash(y)) but avoiding overflow.
int sign;
if(x*y >= 0.0)
sign = 1;
else
sign = -1;
return sign*logsumexp(squash_to_log(Math.abs(x))
+ squash_to_log(Math.abs(y)), 0.0);
}
// Squashed inflated units
double inflateUnits(int height) {
double timescale = 576.0; // Half life of 400 = e-folding time of a day
// by coincidence, so may as well go with it
return log_to_squash(height / timescale);
}
double spikePower(double newAmount) {
if (newAmount < 50.0) {
return(0.5);
} else if (newAmount < 85.0) {
return(newAmount / 100.0);
} else {
return(0.85);
}
}
double spikeMass(double oldAmount, double newAmount) {
double softenedChange = softenLBC(Math.abs(newAmount - oldAmount));
double changeInSoftened = Math.abs(softenLBC(newAmount) - softenLBC(oldAmount));
double power = spikePower(newAmount);
if (oldAmount > newAmount) {
-1.0 * Math.pow(changeInSoftened, power) * Math.pow(softenedChange, 1.0 - power)
} else {
Math.pow(changeInSoftened, power) * Math.pow(softenedChange, 1.0 - power)
}
}
for (i in params.src.changes) {
double units = inflateUnits(i.height);
if (ctx._source.trending_score == null) {
ctx._source.trending_score = 0.0;
}
double bigSpike = squashed_multiply(units, squash(spikeMass(i.prev_amount, i.new_amount)));
ctx._source.trending_score = squashed_add(ctx._source.trending_score, bigSpike);
}
"""
start = time.perf_counter()
def producer():
for claim_id, claim_updates in params.items():
yield {
'_id': claim_id,
'_index': self.index,
'_op_type': 'update',
'script': {
'lang': 'painless',
'source': update_trending_score_script,
'params': {'src': {
'changes': [
{
'height': p.height,
'prev_amount': p.prev_amount / 1E8,
'new_amount': p.new_amount / 1E8,
} for p in claim_updates
]
}}
},
}
if not params:
return
async for ok, item in async_streaming_bulk(self.sync_client, producer(), raise_on_error=False):
if not ok:
self.logger.warning("updating trending failed for an item: %s", item)
await self.sync_client.indices.refresh(self.index)
self.logger.info("updated trending scores in %ims", int((time.perf_counter() - start) * 1000))
async def apply_filters(self, blocked_streams, blocked_channels, filtered_streams, filtered_channels):
if filtered_streams:
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.SEARCH, filtered_streams), slices=4)
await self.sync_client.indices.refresh(self.index)
if filtered_channels:
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.SEARCH, filtered_channels), slices=4)
await self.sync_client.indices.refresh(self.index)
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.SEARCH, filtered_channels, True), slices=4)
await self.sync_client.indices.refresh(self.index)
if blocked_streams:
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.RESOLVE, blocked_streams), slices=4)
await self.sync_client.indices.refresh(self.index)
if blocked_channels:
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.RESOLVE, blocked_channels), slices=4)
await self.sync_client.indices.refresh(self.index)
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.RESOLVE, blocked_channels, True), slices=4)
await self.sync_client.indices.refresh(self.index)
self.clear_caches()
def clear_caches(self):
self.search_cache.clear()
self.claim_cache.clear()
async def cached_search(self, kwargs):
total_referenced = []
cache_item = ResultCacheItem.from_cache(str(kwargs), self.search_cache)
if cache_item.result is not None:
return cache_item.result
async with cache_item.lock:
if cache_item.result:
return cache_item.result
censor = Censor(Censor.SEARCH)
if kwargs.get('no_totals'):
response, offset, total = await self.search(**kwargs, censor_type=Censor.NOT_CENSORED)
else:
response, offset, total = await self.search(**kwargs)
censor.apply(response)
total_referenced.extend(response)
if censor.censored:
response, _, _ = await self.search(**kwargs, censor_type=Censor.NOT_CENSORED)
total_referenced.extend(response)
response = [
ResolveResult(
name=r['claim_name'],
normalized_name=r['normalized_name'],
claim_hash=r['claim_hash'],
tx_num=r['tx_num'],
position=r['tx_nout'],
tx_hash=r['tx_hash'],
height=r['height'],
amount=r['amount'],
short_url=r['short_url'],
is_controlling=r['is_controlling'],
canonical_url=r['canonical_url'],
creation_height=r['creation_height'],
activation_height=r['activation_height'],
expiration_height=r['expiration_height'],
effective_amount=r['effective_amount'],
support_amount=r['support_amount'],
last_takeover_height=r['last_take_over_height'],
claims_in_channel=r['claims_in_channel'],
channel_hash=r['channel_hash'],
reposted_claim_hash=r['reposted_claim_hash'],
reposted=r['reposted'],
signature_valid=r['signature_valid']
) for r in response
]
extra = [
ResolveResult(
name=r['claim_name'],
normalized_name=r['normalized_name'],
claim_hash=r['claim_hash'],
tx_num=r['tx_num'],
position=r['tx_nout'],
tx_hash=r['tx_hash'],
height=r['height'],
amount=r['amount'],
short_url=r['short_url'],
is_controlling=r['is_controlling'],
canonical_url=r['canonical_url'],
creation_height=r['creation_height'],
activation_height=r['activation_height'],
expiration_height=r['expiration_height'],
effective_amount=r['effective_amount'],
support_amount=r['support_amount'],
last_takeover_height=r['last_take_over_height'],
claims_in_channel=r['claims_in_channel'],
channel_hash=r['channel_hash'],
reposted_claim_hash=r['reposted_claim_hash'],
reposted=r['reposted'],
signature_valid=r['signature_valid']
) for r in await self._get_referenced_rows(total_referenced)
]
result = Outputs.to_base64(
response, extra, offset, total, censor
)
cache_item.result = result
return result
async def get_many(self, *claim_ids):
await self.populate_claim_cache(*claim_ids)
return filter(None, map(self.claim_cache.get, claim_ids))
async def populate_claim_cache(self, *claim_ids):
missing = [claim_id for claim_id in claim_ids if self.claim_cache.get(claim_id) is None]
if missing:
results = await self.search_client.mget(
index=self.index, body={"ids": missing}
)
for result in expand_result(filter(lambda doc: doc['found'], results["docs"])):
self.claim_cache.set(result['claim_id'], result)
async def search(self, **kwargs):
try:
return await self.search_ahead(**kwargs)
except NotFoundError:
return [], 0, 0
# return expand_result(result['hits']), 0, result.get('total', {}).get('value', 0)
async def search_ahead(self, **kwargs):
# 'limit_claims_per_channel' case. Fetch 1000 results, reorder, slice, inflate and return
per_channel_per_page = kwargs.pop('limit_claims_per_channel', 0) or 0
remove_duplicates = kwargs.pop('remove_duplicates', False)
page_size = kwargs.pop('limit', 10)
offset = kwargs.pop('offset', 0)
kwargs['limit'] = 1000
cache_item = ResultCacheItem.from_cache(f"ahead{per_channel_per_page}{kwargs}", self.search_cache)
if cache_item.result is not None:
reordered_hits = cache_item.result
else:
async with cache_item.lock:
if cache_item.result:
reordered_hits = cache_item.result
else:
query = expand_query(**kwargs)
search_hits = deque((await self.search_client.search(
query, index=self.index, track_total_hits=False,
_source_includes=['_id', 'channel_id', 'reposted_claim_id', 'creation_height']
))['hits']['hits'])
if remove_duplicates:
search_hits = self.__remove_duplicates(search_hits)
if per_channel_per_page > 0:
reordered_hits = self.__search_ahead(search_hits, page_size, per_channel_per_page)
else:
reordered_hits = [(hit['_id'], hit['_source']['channel_id']) for hit in search_hits]
cache_item.result = reordered_hits
result = list(await self.get_many(*(claim_id for claim_id, _ in reordered_hits[offset:(offset + page_size)])))
return result, 0, len(reordered_hits)
def __remove_duplicates(self, search_hits: deque) -> deque:
known_ids = {} # claim_id -> (creation_height, hit_id), where hit_id is either reposted claim id or original
dropped = set()
for hit in search_hits:
hit_height, hit_id = hit['_source']['creation_height'], hit['_source']['reposted_claim_id'] or hit['_id']
if hit_id not in known_ids:
known_ids[hit_id] = (hit_height, hit['_id'])
else:
previous_height, previous_id = known_ids[hit_id]
if hit_height < previous_height:
known_ids[hit_id] = (hit_height, hit['_id'])
dropped.add(previous_id)
else:
dropped.add(hit['_id'])
return deque(hit for hit in search_hits if hit['_id'] not in dropped)
def __search_ahead(self, search_hits: list, page_size: int, per_channel_per_page: int):
reordered_hits = []
channel_counters = Counter()
next_page_hits_maybe_check_later = deque()
while search_hits or next_page_hits_maybe_check_later:
if reordered_hits and len(reordered_hits) % page_size == 0:
channel_counters.clear()
elif not reordered_hits:
pass
else:
break # means last page was incomplete and we are left with bad replacements
for _ in range(len(next_page_hits_maybe_check_later)):
claim_id, channel_id = next_page_hits_maybe_check_later.popleft()
if per_channel_per_page > 0 and channel_counters[channel_id] < per_channel_per_page:
reordered_hits.append((claim_id, channel_id))
channel_counters[channel_id] += 1
else:
next_page_hits_maybe_check_later.append((claim_id, channel_id))
while search_hits:
hit = search_hits.popleft()
hit_id, hit_channel_id = hit['_id'], hit['_source']['channel_id']
if hit_channel_id is None or per_channel_per_page <= 0:
reordered_hits.append((hit_id, hit_channel_id))
elif channel_counters[hit_channel_id] < per_channel_per_page:
reordered_hits.append((hit_id, hit_channel_id))
channel_counters[hit_channel_id] += 1
if len(reordered_hits) % page_size == 0:
break
else:
next_page_hits_maybe_check_later.append((hit_id, hit_channel_id))
return reordered_hits
async def _get_referenced_rows(self, txo_rows: List[dict]):
txo_rows = [row for row in txo_rows if isinstance(row, dict)]
referenced_ids = set(filter(None, map(itemgetter('reposted_claim_id'), txo_rows)))
referenced_ids |= set(filter(None, (row['channel_id'] for row in txo_rows)))
referenced_ids |= set(filter(None, (row['censoring_channel_id'] for row in txo_rows)))
referenced_txos = []
if referenced_ids:
referenced_txos.extend(await self.get_many(*referenced_ids))
referenced_ids = set(filter(None, (row['channel_id'] for row in referenced_txos)))
if referenced_ids:
referenced_txos.extend(await self.get_many(*referenced_ids))
return referenced_txos
def expand_query(**kwargs):
if "amount_order" in kwargs:
kwargs["limit"] = 1
kwargs["order_by"] = "effective_amount"
kwargs["offset"] = int(kwargs["amount_order"]) - 1
if 'name' in kwargs:
kwargs['name'] = normalize_name(kwargs.pop('name'))
if kwargs.get('is_controlling') is False:
kwargs.pop('is_controlling')
query = {'must': [], 'must_not': []}
collapse = None
if 'fee_currency' in kwargs and kwargs['fee_currency'] is not None:
kwargs['fee_currency'] = kwargs['fee_currency'].upper()
for key, value in kwargs.items():
key = key.replace('claim.', '')
many = key.endswith('__in') or isinstance(value, list)
if many and len(value) > 2048:
raise TooManyClaimSearchParametersError(key, 2048)
if many:
key = key.replace('__in', '')
value = list(filter(None, value))
if value is None or isinstance(value, list) and len(value) == 0:
continue
key = REPLACEMENTS.get(key, key)
if key in FIELDS:
partial_id = False
if key == 'claim_type':
if isinstance(value, str):
value = CLAIM_TYPES[value]
else:
value = [CLAIM_TYPES[claim_type] for claim_type in value]
elif key == 'stream_type':
value = [STREAM_TYPES[value]] if isinstance(value, str) else list(map(STREAM_TYPES.get, value))
if key == '_id':
if isinstance(value, Iterable):
value = [item[::-1].hex() for item in value]
else:
value = value[::-1].hex()
if not many and key in ('_id', 'claim_id', 'sd_hash') and len(value) < 20:
partial_id = True
if key in ('signature_valid', 'has_source'):
continue # handled later
if key in TEXT_FIELDS:
key += '.keyword'
ops = {'<=': 'lte', '>=': 'gte', '<': 'lt', '>': 'gt'}
if partial_id:
query['must'].append({"prefix": {key: value}})
elif key in RANGE_FIELDS and isinstance(value, str) and value[0] in ops:
operator_length = 2 if value[:2] in ops else 1
operator, value = value[:operator_length], value[operator_length:]
if key == 'fee_amount':
value = str(Decimal(value)*1000)
query['must'].append({"range": {key: {ops[operator]: value}}})
elif key in RANGE_FIELDS and isinstance(value, list) and all(v[0] in ops for v in value):
range_constraints = []
for v in value:
operator_length = 2 if v[:2] in ops else 1
operator, stripped_op_v = v[:operator_length], v[operator_length:]
if key == 'fee_amount':
stripped_op_v = str(Decimal(stripped_op_v)*1000)
range_constraints.append((operator, stripped_op_v))
query['must'].append({"range": {key: {ops[operator]: v for operator, v in range_constraints}}})
elif many:
query['must'].append({"terms": {key: value}})
else:
if key == 'fee_amount':
value = str(Decimal(value)*1000)
query['must'].append({"term": {key: {"value": value}}})
elif key == 'not_channel_ids':
for channel_id in value:
query['must_not'].append({"term": {'channel_id.keyword': channel_id}})
query['must_not'].append({"term": {'_id': channel_id}})
elif key == 'channel_ids':
query['must'].append({"terms": {'channel_id.keyword': value}})
elif key == 'claim_ids':
query['must'].append({"terms": {'claim_id.keyword': value}})
elif key == 'media_types':
query['must'].append({"terms": {'media_type.keyword': value}})
elif key == 'any_languages':
query['must'].append({"terms": {'languages': clean_tags(value)}})
elif key == 'any_languages':
query['must'].append({"terms": {'languages': value}})
elif key == 'all_languages':
query['must'].extend([{"term": {'languages': tag}} for tag in value])
elif key == 'any_tags':
query['must'].append({"terms": {'tags.keyword': clean_tags(value)}})
elif key == 'all_tags':
query['must'].extend([{"term": {'tags.keyword': tag}} for tag in clean_tags(value)])
elif key == 'not_tags':
query['must_not'].extend([{"term": {'tags.keyword': tag}} for tag in clean_tags(value)])
elif key == 'not_claim_id':
query['must_not'].extend([{"term": {'claim_id.keyword': cid}} for cid in value])
elif key == 'limit_claims_per_channel':
collapse = ('channel_id.keyword', value)
if kwargs.get('has_channel_signature'):
query['must'].append({"exists": {"field": "signature"}})
if 'signature_valid' in kwargs:
query['must'].append({"term": {"is_signature_valid": bool(kwargs["signature_valid"])}})
elif 'signature_valid' in kwargs:
query.setdefault('should', [])
query["minimum_should_match"] = 1
query['should'].append({"bool": {"must_not": {"exists": {"field": "signature"}}}})
query['should'].append({"term": {"is_signature_valid": bool(kwargs["signature_valid"])}})
if 'has_source' in kwargs:
query.setdefault('should', [])
query["minimum_should_match"] = 1
is_stream_or_repost = {"terms": {"claim_type": [CLAIM_TYPES['stream'], CLAIM_TYPES['repost']]}}
query['should'].append(
{"bool": {"must": [{"match": {"has_source": kwargs['has_source']}}, is_stream_or_repost]}})
query['should'].append({"bool": {"must_not": [is_stream_or_repost]}})
query['should'].append({"bool": {"must": [{"term": {"reposted_claim_type": CLAIM_TYPES['channel']}}]}})
if kwargs.get('text'):
query['must'].append(
{"simple_query_string":
{"query": kwargs["text"], "fields": [
"claim_name^4", "channel_name^8", "title^1", "description^.5", "author^1", "tags^.5"
]}})
query = {
"_source": {"excludes": ["description", "title"]},
'query': {'bool': query},
"sort": [],
}
if "limit" in kwargs:
query["size"] = kwargs["limit"]
if 'offset' in kwargs:
query["from"] = kwargs["offset"]
if 'order_by' in kwargs:
if isinstance(kwargs["order_by"], str):
kwargs["order_by"] = [kwargs["order_by"]]
for value in kwargs['order_by']:
if 'trending_group' in value:
# fixme: trending_mixed is 0 for all records on variable decay, making sort slow.
continue
is_asc = value.startswith('^')
value = value[1:] if is_asc else value
value = REPLACEMENTS.get(value, value)
if value in TEXT_FIELDS:
value += '.keyword'
query['sort'].append({value: "asc" if is_asc else "desc"})
if collapse:
query["collapse"] = {
"field": collapse[0],
"inner_hits": {
"name": collapse[0],
"size": collapse[1],
"sort": query["sort"]
}
}
return query
def expand_result(results):
inner_hits = []
expanded = []
for result in results:
if result.get("inner_hits"):
for _, inner_hit in result["inner_hits"].items():
inner_hits.extend(inner_hit["hits"]["hits"])
continue
result = result['_source']
result['claim_hash'] = unhexlify(result['claim_id'])[::-1]
if result['reposted_claim_id']:
result['reposted_claim_hash'] = unhexlify(result['reposted_claim_id'])[::-1]
else:
result['reposted_claim_hash'] = None
result['channel_hash'] = unhexlify(result['channel_id'])[::-1] if result['channel_id'] else None
result['txo_hash'] = unhexlify(result['tx_id'])[::-1] + struct.pack('<I', result['tx_nout'])
result['tx_hash'] = unhexlify(result['tx_id'])[::-1]
result['reposted'] = result.pop('repost_count')
result['signature_valid'] = result.pop('is_signature_valid')
# result['normalized'] = result.pop('normalized_name')
# if result['censoring_channel_hash']:
# result['censoring_channel_hash'] = unhexlify(result['censoring_channel_hash'])[::-1]
expanded.append(result)
if inner_hits:
return expand_result(inner_hits)
return expanded
class ResultCacheItem:
__slots__ = '_result', 'lock', 'has_result'
def __init__(self):
self.has_result = asyncio.Event()
self.lock = asyncio.Lock()
self._result = None
@property
def result(self) -> str:
return self._result
@result.setter
def result(self, result: str):
self._result = result
if result is not None:
self.has_result.set()
@classmethod
def from_cache(cls, cache_key, cache):
cache_item = cache.get(cache_key)
if cache_item is None:
cache_item = cache[cache_key] = ResultCacheItem()
return cache_item

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import os
import re
import resource
import logging
from collections import namedtuple
from ipaddress import ip_address
from scribe.blockchain.network import LBCMainNet, LBCTestNet, LBCRegTest
NetIdentity = namedtuple('NetIdentity', 'host tcp_port ssl_port nick_suffix')
SEGMENT_REGEX = re.compile("(?!-)[A-Z_\\d-]{1,63}(?<!-)$", re.IGNORECASE)
def is_valid_hostname(hostname):
if len(hostname) > 255:
return False
# strip exactly one dot from the right, if present
if hostname and hostname[-1] == ".":
hostname = hostname[:-1]
return all(SEGMENT_REGEX.match(x) for x in hostname.split("."))
class Env:
# Peer discovery
PD_OFF, PD_SELF, PD_ON = range(3)
class Error(Exception):
pass
def __init__(self, db_dir=None, daemon_url=None, host=None, rpc_host=None, elastic_host=None,
elastic_port=None, loop_policy=None, max_query_workers=None, websocket_host=None, websocket_port=None,
chain=None, es_index_prefix=None, cache_MB=None, reorg_limit=None, tcp_port=None,
udp_port=None, ssl_port=None, ssl_certfile=None, ssl_keyfile=None, rpc_port=None,
prometheus_port=None, max_subscriptions=None, banner_file=None, anon_logs=None, log_sessions=None,
allow_lan_udp=None, cache_all_tx_hashes=None, cache_all_claim_txos=None, country=None,
payment_address=None, donation_address=None, max_send=None, max_receive=None, max_sessions=None,
session_timeout=None, drop_client=None, description=None, daily_fee=None,
database_query_timeout=None, db_max_open_files=64, elastic_notifier_port=None,
blocking_channel_ids=None, filtering_channel_ids=None, peer_hubs=None, peer_announce=None):
self.logger = logging.getLogger(__name__)
self.db_dir = db_dir if db_dir is not None else self.required('DB_DIRECTORY')
self.daemon_url = daemon_url if daemon_url is not None else self.required('DAEMON_URL')
self.db_max_open_files = db_max_open_files
self.host = host if host is not None else self.default('HOST', 'localhost')
self.rpc_host = rpc_host if rpc_host is not None else self.default('RPC_HOST', 'localhost')
self.elastic_host = elastic_host if elastic_host is not None else self.default('ELASTIC_HOST', 'localhost')
self.elastic_port = elastic_port if elastic_port is not None else self.integer('ELASTIC_PORT', 9200)
self.elastic_notifier_port = elastic_notifier_port if elastic_notifier_port is not None else self.integer('ELASTIC_NOTIFIER_PORT', 19080)
self.loop_policy = self.set_event_loop_policy(
loop_policy if loop_policy is not None else self.default('EVENT_LOOP_POLICY', None)
)
self.obsolete(['UTXO_MB', 'HIST_MB', 'NETWORK'])
self.max_query_workers = max_query_workers if max_query_workers is not None else self.integer('MAX_QUERY_WORKERS', 4)
self.websocket_host = websocket_host if websocket_host is not None else self.default('WEBSOCKET_HOST', self.host)
self.websocket_port = websocket_port if websocket_port is not None else self.integer('WEBSOCKET_PORT', None)
if chain == 'mainnet':
self.coin = LBCMainNet
elif chain == 'testnet':
self.coin = LBCTestNet
else:
self.coin = LBCRegTest
self.es_index_prefix = es_index_prefix if es_index_prefix is not None else self.default('ES_INDEX_PREFIX', '')
self.cache_MB = cache_MB if cache_MB is not None else self.integer('CACHE_MB', 1024)
self.reorg_limit = reorg_limit if reorg_limit is not None else self.integer('REORG_LIMIT', self.coin.REORG_LIMIT)
# Server stuff
self.tcp_port = tcp_port if tcp_port is not None else self.integer('TCP_PORT', None)
self.udp_port = udp_port if udp_port is not None else self.integer('UDP_PORT', self.tcp_port)
self.ssl_port = ssl_port if ssl_port is not None else self.integer('SSL_PORT', None)
if self.ssl_port:
self.ssl_certfile = ssl_certfile if ssl_certfile is not None else self.required('SSL_CERTFILE')
self.ssl_keyfile = ssl_keyfile if ssl_keyfile is not None else self.required('SSL_KEYFILE')
self.rpc_port = rpc_port if rpc_port is not None else self.integer('RPC_PORT', 8000)
self.prometheus_port = prometheus_port if prometheus_port is not None else self.integer('PROMETHEUS_PORT', 0)
self.max_subscriptions = max_subscriptions if max_subscriptions is not None else self.integer('MAX_SUBSCRIPTIONS', 10000)
self.banner_file = banner_file if banner_file is not None else self.default('BANNER_FILE', None)
# self.tor_banner_file = self.default('TOR_BANNER_FILE', self.banner_file)
self.anon_logs = anon_logs if anon_logs is not None else self.boolean('ANON_LOGS', False)
self.log_sessions = log_sessions if log_sessions is not None else self.integer('LOG_SESSIONS', 3600)
self.allow_lan_udp = allow_lan_udp if allow_lan_udp is not None else self.boolean('ALLOW_LAN_UDP', False)
self.cache_all_tx_hashes = cache_all_tx_hashes if cache_all_tx_hashes is not None else self.boolean('CACHE_ALL_TX_HASHES', False)
self.cache_all_claim_txos = cache_all_claim_txos if cache_all_claim_txos is not None else self.boolean('CACHE_ALL_CLAIM_TXOS', False)
self.country = country if country is not None else self.default('COUNTRY', 'US')
# Peer discovery
self.peer_discovery = self.peer_discovery_enum()
self.peer_announce = peer_announce if peer_announce is not None else self.boolean('PEER_ANNOUNCE', True)
if peer_hubs is not None:
self.peer_hubs = [p.strip("") for p in peer_hubs.split(",")]
else:
self.peer_hubs = self.extract_peer_hubs()
# self.tor_proxy_host = self.default('TOR_PROXY_HOST', 'localhost')
# self.tor_proxy_port = self.integer('TOR_PROXY_PORT', None)
# The electrum client takes the empty string as unspecified
self.payment_address = payment_address if payment_address is not None else self.default('PAYMENT_ADDRESS', '')
self.donation_address = donation_address if donation_address is not None else self.default('DONATION_ADDRESS', '')
# Server limits to help prevent DoS
self.max_send = max_send if max_send is not None else self.integer('MAX_SEND', 1000000)
self.max_receive = max_receive if max_receive is not None else self.integer('MAX_RECEIVE', 1000000)
# self.max_subs = self.integer('MAX_SUBS', 250000)
self.max_sessions = max_sessions if max_sessions is not None else self.sane_max_sessions()
# self.max_session_subs = self.integer('MAX_SESSION_SUBS', 50000)
self.session_timeout = session_timeout if session_timeout is not None else self.integer('SESSION_TIMEOUT', 600)
self.drop_client = drop_client if drop_client is not None else self.custom("DROP_CLIENT", None, re.compile)
self.description = description if description is not None else self.default('DESCRIPTION', '')
self.daily_fee = daily_fee if daily_fee is not None else self.string_amount('DAILY_FEE', '0')
# Identities
clearnet_identity = self.clearnet_identity()
tor_identity = self.tor_identity(clearnet_identity)
self.identities = [identity
for identity in (clearnet_identity, tor_identity)
if identity is not None]
self.database_query_timeout = database_query_timeout if database_query_timeout is not None else \
(float(self.integer('QUERY_TIMEOUT_MS', 10000)) / 1000.0)
# Filtering / Blocking
self.blocking_channel_ids = blocking_channel_ids if blocking_channel_ids is not None else self.default('BLOCKING_CHANNEL_IDS', '').split(' ')
self.filtering_channel_ids = filtering_channel_ids if filtering_channel_ids is not None else self.default('FILTERING_CHANNEL_IDS', '').split(' ')
@classmethod
def default(cls, envvar, default):
return os.environ.get(envvar, default)
@classmethod
def boolean(cls, envvar, default):
default = 'Yes' if default else ''
return bool(cls.default(envvar, default).strip())
@classmethod
def required(cls, envvar):
value = os.environ.get(envvar)
if value is None:
raise cls.Error(f'required envvar {envvar} not set')
return value
@classmethod
def string_amount(cls, envvar, default):
value = os.environ.get(envvar, default)
amount_pattern = re.compile("[0-9]{0,10}(\.[0-9]{1,8})?")
if len(value) > 0 and not amount_pattern.fullmatch(value):
raise cls.Error(f'{value} is not a valid amount for {envvar}')
return value
@classmethod
def integer(cls, envvar, default):
value = os.environ.get(envvar)
if value is None:
return default
try:
return int(value)
except Exception:
raise cls.Error(f'cannot convert envvar {envvar} value {value} to an integer')
@classmethod
def custom(cls, envvar, default, parse):
value = os.environ.get(envvar)
if value is None:
return default
try:
return parse(value)
except Exception as e:
raise cls.Error(f'cannot parse envvar {envvar} value {value}') from e
@classmethod
def obsolete(cls, envvars):
bad = [envvar for envvar in envvars if os.environ.get(envvar)]
if bad:
raise cls.Error(f'remove obsolete os.environment variables {bad}')
@classmethod
def set_event_loop_policy(cls, policy_name: str = None):
if not policy_name or policy_name == 'default':
import asyncio
return asyncio.get_event_loop_policy()
elif policy_name == 'uvloop':
import uvloop
import asyncio
loop_policy = uvloop.EventLoopPolicy()
asyncio.set_event_loop_policy(loop_policy)
return loop_policy
raise cls.Error(f'unknown event loop policy "{policy_name}"')
def cs_host(self, *, for_rpc):
"""Returns the 'host' argument to pass to asyncio's create_server
call. The result can be a single host name string, a list of
host name strings, or an empty string to bind to all interfaces.
If rpc is True the host to use for the RPC server is returned.
Otherwise the host to use for SSL/TCP servers is returned.
"""
host = self.rpc_host if for_rpc else self.host
result = [part.strip() for part in host.split(',')]
if len(result) == 1:
result = result[0]
# An empty result indicates all interfaces, which we do not
# permitted for an RPC server.
if for_rpc and not result:
result = 'localhost'
if result == 'localhost':
# 'localhost' resolves to ::1 (ipv6) on many systems, which fails on default setup of
# docker, using 127.0.0.1 instead forces ipv4
result = '127.0.0.1'
return result
def sane_max_sessions(self):
"""Return the maximum number of sessions to permit. Normally this
is MAX_SESSIONS. However, to prevent open file exhaustion, ajdust
downwards if running with a small open file rlimit."""
env_value = self.integer('MAX_SESSIONS', 1000)
nofile_limit = resource.getrlimit(resource.RLIMIT_NOFILE)[0]
# We give the DB 250 files; allow ElectrumX 100 for itself
value = max(0, min(env_value, nofile_limit - 350))
if value < env_value:
self.logger.warning(f'lowered maximum sessions from {env_value:,d} to {value:,d} '
f'because your open file limit is {nofile_limit:,d}')
return value
def clearnet_identity(self):
host = self.default('REPORT_HOST', None)
if host is None:
return None
try:
ip = ip_address(host)
except ValueError:
bad = (not is_valid_hostname(host)
or host.lower() == 'localhost')
else:
bad = (ip.is_multicast or ip.is_unspecified
or (ip.is_private and self.peer_announce))
if bad:
raise self.Error(f'"{host}" is not a valid REPORT_HOST')
tcp_port = self.integer('REPORT_TCP_PORT', self.tcp_port) or None
ssl_port = self.integer('REPORT_SSL_PORT', self.ssl_port) or None
if tcp_port == ssl_port:
raise self.Error('REPORT_TCP_PORT and REPORT_SSL_PORT '
f'both resolve to {tcp_port}')
return NetIdentity(
host,
tcp_port,
ssl_port,
''
)
def tor_identity(self, clearnet):
host = self.default('REPORT_HOST_TOR', None)
if host is None:
return None
if not host.endswith('.onion'):
raise self.Error(f'tor host "{host}" must end with ".onion"')
def port(port_kind):
"""Returns the clearnet identity port, if any and not zero,
otherwise the listening port."""
result = 0
if clearnet:
result = getattr(clearnet, port_kind)
return result or getattr(self, port_kind)
tcp_port = self.integer('REPORT_TCP_PORT_TOR',
port('tcp_port')) or None
ssl_port = self.integer('REPORT_SSL_PORT_TOR',
port('ssl_port')) or None
if tcp_port == ssl_port:
raise self.Error('REPORT_TCP_PORT_TOR and REPORT_SSL_PORT_TOR '
f'both resolve to {tcp_port}')
return NetIdentity(
host,
tcp_port,
ssl_port,
'_tor',
)
def hosts_dict(self):
return {identity.host: {'tcp_port': identity.tcp_port,
'ssl_port': identity.ssl_port}
for identity in self.identities}
def peer_discovery_enum(self):
pd = self.default('PEER_DISCOVERY', 'on').strip().lower()
if pd in ('off', ''):
return self.PD_OFF
elif pd == 'self':
return self.PD_SELF
else:
return self.PD_ON
def extract_peer_hubs(self):
return [hub.strip() for hub in self.default('PEER_HUBS', '').split(',')]
@classmethod
def contribute_to_arg_parser(cls, parser):
parser.add_argument('--db_dir', type=str, help='path of the directory containing lbry-leveldb',
default=cls.default('DB_DIRECTORY', None))
parser.add_argument('--daemon_url',
help='URL for rpc from lbrycrd, <rpcuser>:<rpcpassword>@<lbrycrd rpc ip><lbrycrd rpc port>',
default=cls.default('DAEMON_URL', None))
parser.add_argument('--db_max_open_files', type=int, default=64,
help='number of files rocksdb can have open at a time')
parser.add_argument('--host', type=str, default=cls.default('HOST', 'localhost'),
help='Interface for hub server to listen on')
parser.add_argument('--tcp_port', type=int, default=cls.integer('TCP_PORT', 50001),
help='TCP port to listen on for hub server')
parser.add_argument('--udp_port', type=int, default=cls.integer('UDP_PORT', 50001),
help='UDP port to listen on for hub server')
parser.add_argument('--rpc_host', default=cls.default('RPC_HOST', 'localhost'), type=str,
help='Listening interface for admin rpc')
parser.add_argument('--rpc_port', default=cls.integer('RPC_PORT', 8000), type=int,
help='Listening port for admin rpc')
parser.add_argument('--websocket_host', default=cls.default('WEBSOCKET_HOST', 'localhost'), type=str,
help='Listening interface for websocket')
parser.add_argument('--websocket_port', default=cls.integer('WEBSOCKET_PORT', None), type=int,
help='Listening port for websocket')
parser.add_argument('--ssl_port', default=cls.integer('SSL_PORT', None), type=int,
help='SSL port to listen on for hub server')
parser.add_argument('--ssl_certfile', default=cls.default('SSL_CERTFILE', None), type=str,
help='Path to SSL cert file')
parser.add_argument('--ssl_keyfile', default=cls.default('SSL_KEYFILE', None), type=str,
help='Path to SSL key file')
parser.add_argument('--reorg_limit', default=cls.integer('REORG_LIMIT', 200), type=int, help='Max reorg depth')
parser.add_argument('--elastic_host', default=cls.default('ELASTIC_HOST', 'localhost'), type=str,
help='elasticsearch host')
parser.add_argument('--elastic_port', default=cls.integer('ELASTIC_PORT', 9200), type=int,
help='elasticsearch port')
parser.add_argument('--es_index_prefix', default=cls.default('ES_INDEX_PREFIX', ''), type=str)
parser.add_argument('--loop_policy', default=cls.default('EVENT_LOOP_POLICY', 'default'), type=str,
choices=['default', 'uvloop'])
parser.add_argument('--max_query_workers', type=int, default=cls.integer('MAX_QUERY_WORKERS', 4),
help='number of threads used by the request handler to read the database')
parser.add_argument('--cache_MB', type=int, default=cls.integer('CACHE_MB', 1024),
help='size of the leveldb lru cache, in megabytes')
parser.add_argument('--cache_all_tx_hashes', type=bool,
help='Load all tx hashes into memory. This will make address subscriptions and sync, '
'resolve, transaction fetching, and block sync all faster at the expense of higher '
'memory usage')
parser.add_argument('--cache_all_claim_txos', type=bool,
help='Load all claim txos into memory. This will make address subscriptions and sync, '
'resolve, transaction fetching, and block sync all faster at the expense of higher '
'memory usage')
parser.add_argument('--prometheus_port', type=int, default=cls.integer('PROMETHEUS_PORT', 0),
help='port for hub prometheus metrics to listen on, disabled by default')
parser.add_argument('--max_subscriptions', type=int, default=cls.integer('MAX_SUBSCRIPTIONS', 10000),
help='max subscriptions per connection')
parser.add_argument('--banner_file', type=str, default=cls.default('BANNER_FILE', None),
help='path to file containing banner text')
parser.add_argument('--anon_logs', type=bool, default=cls.boolean('ANON_LOGS', False),
help="don't log ip addresses")
parser.add_argument('--allow_lan_udp', type=bool, default=cls.boolean('ALLOW_LAN_UDP', False),
help='reply to hub UDP ping messages from LAN ip addresses')
parser.add_argument('--country', type=str, default=cls.default('COUNTRY', 'US'), help='')
parser.add_argument('--max_send', type=int, default=cls.default('MAX_SEND', 1000000), help='')
parser.add_argument('--max_receive', type=int, default=cls.default('MAX_RECEIVE', 1000000), help='')
parser.add_argument('--max_sessions', type=int, default=cls.default('MAX_SESSIONS', 1000), help='')
parser.add_argument('--session_timeout', type=int, default=cls.default('SESSION_TIMEOUT', 600), help='')
parser.add_argument('--drop_client', type=str, default=cls.default('DROP_CLIENT', None), help='')
parser.add_argument('--description', type=str, default=cls.default('DESCRIPTION', ''), help='')
parser.add_argument('--daily_fee', type=float, default=cls.default('DAILY_FEE', 0.0), help='')
parser.add_argument('--payment_address', type=str, default=cls.default('PAYMENT_ADDRESS', ''), help='')
parser.add_argument('--donation_address', type=str, default=cls.default('DONATION_ADDRESS', ''), help='')
parser.add_argument('--chain', type=str, default=cls.default('NET', 'mainnet'),
help="Which chain to use, default is mainnet", choices=['mainnet', 'regtest', 'testnet'])
parser.add_argument('--query_timeout_ms', type=int, default=cls.integer('QUERY_TIMEOUT_MS', 10000),
help="elasticsearch query timeout")
parser.add_argument('--blocking_channel_ids', nargs='*', help='',
default=cls.default('BLOCKING_CHANNEL_IDS', '').split(' '))
parser.add_argument('--filtering_channel_ids', nargs='*', help='',
default=cls.default('FILTERING_CHANNEL_IDS', '').split(' '))
@classmethod
def from_arg_parser(cls, args):
return cls(
db_dir=args.db_dir, daemon_url=args.daemon_url, db_max_open_files=args.db_max_open_files,
host=args.host, rpc_host=args.rpc_host, elastic_host=args.elastic_host, elastic_port=args.elastic_port,
loop_policy=args.loop_policy, max_query_workers=args.max_query_workers, websocket_host=args.websocket_host,
websocket_port=args.websocket_port, chain=args.chain, es_index_prefix=args.es_index_prefix,
cache_MB=args.cache_MB, reorg_limit=args.reorg_limit, tcp_port=args.tcp_port,
udp_port=args.udp_port, ssl_port=args.ssl_port, ssl_certfile=args.ssl_certfile,
ssl_keyfile=args.ssl_keyfile, rpc_port=args.rpc_port, prometheus_port=args.prometheus_port,
max_subscriptions=args.max_subscriptions, banner_file=args.banner_file, anon_logs=args.anon_logs,
log_sessions=None, allow_lan_udp=args.allow_lan_udp,
cache_all_tx_hashes=args.cache_all_tx_hashes, cache_all_claim_txos=args.cache_all_claim_txos,
country=args.country, payment_address=args.payment_address, donation_address=args.donation_address,
max_send=args.max_send, max_receive=args.max_receive, max_sessions=args.max_sessions,
session_timeout=args.session_timeout, drop_client=args.drop_client, description=args.description,
daily_fee=args.daily_fee, database_query_timeout=(args.query_timeout_ms / 1000),
blocking_channel_ids=args.blocking_channel_ids, filtering_channel_ids=args.filtering_channel_ids
)

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generate:
python generate.py generate > __init__.py
analyze:
python generate.py analyze

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# Exceptions
Exceptions in LBRY are defined and generated from the Markdown table at the end of this README.
## Guidelines
When possible, use [built-in Python exceptions](https://docs.python.org/3/library/exceptions.html) or `aiohttp` [general client](https://docs.aiohttp.org/en/latest/client_reference.html#client-exceptions) / [HTTP](https://docs.aiohttp.org/en/latest/web_exceptions.html) exceptions, unless:
1. You want to provide a better error message (extend the closest built-in/`aiohttp` exception in this case).
2. You need to represent a new situation.
When defining your own exceptions, consider:
1. Extending a built-in Python or `aiohttp` exception.
2. Using contextual variables in the error message.
## Table Column Definitions
Column | Meaning
---|---
Code | Codes are used only to define the hierarchy of exceptions and do not end up in the generated output, it is okay to re-number things as necessary at anytime to achieve the desired hierarchy.
Name | Becomes the class name of the exception with "Error" appended to the end. Changing names of existing exceptions makes the API backwards incompatible. When extending other exceptions you must specify the full class name, manually adding "Error" as necessary (if extending another SDK exception).
Message | User friendly error message explaining the exceptional event. Supports Python formatted strings: any variables used in the string will be generated as arguments in the `__init__` method. Use `--` to provide a doc string after the error message to be added to the class definition.
## Exceptions Table
Code | Name | Message
---:|---|---
**1xx** | UserInput | User input errors.
**10x** | Command | Errors preparing to execute commands.
101 | CommandDoesNotExist | Command '{command}' does not exist.
102 | CommandDeprecated | Command '{command}' is deprecated.
103 | CommandInvalidArgument | Invalid argument '{argument}' to command '{command}'.
104 | CommandTemporarilyUnavailable | Command '{command}' is temporarily unavailable. -- Such as waiting for required components to start.
105 | CommandPermanentlyUnavailable | Command '{command}' is permanently unavailable. -- such as when required component was intentionally configured not to start.
**11x** | InputValue(ValueError) | Invalid argument value provided to command.
111 | GenericInputValue | The value '{value}' for argument '{argument}' is not valid.
112 | InputValueIsNone | None or null is not valid value for argument '{argument}'.
113 | ConflictingInputValue | Only '{first_argument}' or '{second_argument}' is allowed, not both.
114 | InputStringIsBlank | {argument} cannot be blank.
115 | EmptyPublishedFile | Cannot publish empty file: {file_path}
116 | MissingPublishedFile | File does not exist: {file_path}
117 | InvalidStreamURL | Invalid LBRY stream URL: '{url}' -- When an URL cannot be downloaded, such as '@Channel/' or a collection
**2xx** | Configuration | Configuration errors.
201 | ConfigWrite | Cannot write configuration file '{path}'. -- When writing the default config fails on startup, such as due to permission issues.
202 | ConfigRead | Cannot find provided configuration file '{path}'. -- Can't open the config file user provided via command line args.
203 | ConfigParse | Failed to parse the configuration file '{path}'. -- Includes the syntax error / line number to help user fix it.
204 | ConfigMissing | Configuration file '{path}' is missing setting that has no default / fallback.
205 | ConfigInvalid | Configuration file '{path}' has setting with invalid value.
**3xx** | Network | **Networking**
301 | NoInternet | No internet connection.
302 | NoUPnPSupport | Router does not support UPnP.
**4xx** | Wallet | **Wallet Errors**
401 | TransactionRejected | Transaction rejected, unknown reason.
402 | TransactionFeeTooLow | Fee too low.
403 | TransactionInvalidSignature | Invalid signature.
404 | InsufficientFunds | Not enough funds to cover this transaction. -- determined by wallet prior to attempting to broadcast a tx; this is different for example from a TX being created and sent but then rejected by lbrycrd for unspendable utxos.
405 | ChannelKeyNotFound | Channel signing key not found.
406 | ChannelKeyInvalid | Channel signing key is out of date. -- For example, channel was updated but you don't have the updated key.
407 | DataDownload | Failed to download blob. *generic*
408 | PrivateKeyNotFound | Couldn't find private key for {key} '{value}'.
410 | Resolve | Failed to resolve '{url}'.
411 | ResolveTimeout | Failed to resolve '{url}' within the timeout.
411 | ResolveCensored | Resolve of '{url}' was censored by channel with claim id '{censor_id}'.
420 | KeyFeeAboveMaxAllowed | {message}
421 | InvalidPassword | Password is invalid.
422 | IncompatibleWalletServer | '{server}:{port}' has an incompatibly old version.
423 | TooManyClaimSearchParameters | {key} cant have more than {limit} items.
424 | AlreadyPurchased | You already have a purchase for claim_id '{claim_id_hex}'. Use --allow-duplicate-purchase flag to override.
431 | ServerPaymentInvalidAddress | Invalid address from wallet server: '{address}' - skipping payment round.
432 | ServerPaymentWalletLocked | Cannot spend funds with locked wallet, skipping payment round.
433 | ServerPaymentFeeAboveMaxAllowed | Daily server fee of {daily_fee} exceeds maximum configured of {max_fee} LBC.
434 | WalletNotLoaded | Wallet {wallet_id} is not loaded.
435 | WalletAlreadyLoaded | Wallet {wallet_path} is already loaded.
436 | WalletNotFound | Wallet not found at {wallet_path}.
437 | WalletAlreadyExists | Wallet {wallet_path} already exists, use `wallet_add` to load it.
**5xx** | Blob | **Blobs**
500 | BlobNotFound | Blob not found.
501 | BlobPermissionDenied | Permission denied to read blob.
502 | BlobTooBig | Blob is too big.
503 | BlobEmpty | Blob is empty.
510 | BlobFailedDecryption | Failed to decrypt blob.
511 | CorruptBlob | Blobs is corrupted.
520 | BlobFailedEncryption | Failed to encrypt blob.
531 | DownloadCancelled | Download was canceled.
532 | DownloadSDTimeout | Failed to download sd blob {download} within timeout.
533 | DownloadDataTimeout | Failed to download data blobs for sd hash {download} within timeout.
534 | InvalidStreamDescriptor | {message}
535 | InvalidData | {message}
536 | InvalidBlobHash | {message}
**6xx** | Component | **Components**
601 | ComponentStartConditionNotMet | Unresolved dependencies for: {components}
602 | ComponentsNotStarted | {message}
**7xx** | CurrencyExchange | **Currency Exchange**
701 | InvalidExchangeRateResponse | Failed to get exchange rate from {source}: {reason}
702 | CurrencyConversion | {message}
703 | InvalidCurrency | Invalid currency: {currency} is not a supported currency.

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from .base import BaseError, claim_id
class UserInputError(BaseError):
"""
User input errors.
"""
class CommandError(UserInputError):
"""
Errors preparing to execute commands.
"""
class CommandDoesNotExistError(CommandError):
def __init__(self, command):
self.command = command
super().__init__(f"Command '{command}' does not exist.")
class CommandDeprecatedError(CommandError):
def __init__(self, command):
self.command = command
super().__init__(f"Command '{command}' is deprecated.")
class CommandInvalidArgumentError(CommandError):
def __init__(self, argument, command):
self.argument = argument
self.command = command
super().__init__(f"Invalid argument '{argument}' to command '{command}'.")
class CommandTemporarilyUnavailableError(CommandError):
"""
Such as waiting for required components to start.
"""
def __init__(self, command):
self.command = command
super().__init__(f"Command '{command}' is temporarily unavailable.")
class CommandPermanentlyUnavailableError(CommandError):
"""
such as when required component was intentionally configured not to start.
"""
def __init__(self, command):
self.command = command
super().__init__(f"Command '{command}' is permanently unavailable.")
class InputValueError(UserInputError, ValueError):
"""
Invalid argument value provided to command.
"""
class GenericInputValueError(InputValueError):
def __init__(self, value, argument):
self.value = value
self.argument = argument
super().__init__(f"The value '{value}' for argument '{argument}' is not valid.")
class InputValueIsNoneError(InputValueError):
def __init__(self, argument):
self.argument = argument
super().__init__(f"None or null is not valid value for argument '{argument}'.")
class ConflictingInputValueError(InputValueError):
def __init__(self, first_argument, second_argument):
self.first_argument = first_argument
self.second_argument = second_argument
super().__init__(f"Only '{first_argument}' or '{second_argument}' is allowed, not both.")
class InputStringIsBlankError(InputValueError):
def __init__(self, argument):
self.argument = argument
super().__init__(f"{argument} cannot be blank.")
class EmptyPublishedFileError(InputValueError):
def __init__(self, file_path):
self.file_path = file_path
super().__init__(f"Cannot publish empty file: {file_path}")
class MissingPublishedFileError(InputValueError):
def __init__(self, file_path):
self.file_path = file_path
super().__init__(f"File does not exist: {file_path}")
class InvalidStreamURLError(InputValueError):
"""
When an URL cannot be downloaded, such as '@Channel/' or a collection
"""
def __init__(self, url):
self.url = url
super().__init__(f"Invalid LBRY stream URL: '{url}'")
class ConfigurationError(BaseError):
"""
Configuration errors.
"""
class ConfigWriteError(ConfigurationError):
"""
When writing the default config fails on startup, such as due to permission issues.
"""
def __init__(self, path):
self.path = path
super().__init__(f"Cannot write configuration file '{path}'.")
class ConfigReadError(ConfigurationError):
"""
Can't open the config file user provided via command line args.
"""
def __init__(self, path):
self.path = path
super().__init__(f"Cannot find provided configuration file '{path}'.")
class ConfigParseError(ConfigurationError):
"""
Includes the syntax error / line number to help user fix it.
"""
def __init__(self, path):
self.path = path
super().__init__(f"Failed to parse the configuration file '{path}'.")
class ConfigMissingError(ConfigurationError):
def __init__(self, path):
self.path = path
super().__init__(f"Configuration file '{path}' is missing setting that has no default / fallback.")
class ConfigInvalidError(ConfigurationError):
def __init__(self, path):
self.path = path
super().__init__(f"Configuration file '{path}' has setting with invalid value.")
class NetworkError(BaseError):
"""
**Networking**
"""
class NoInternetError(NetworkError):
def __init__(self):
super().__init__("No internet connection.")
class NoUPnPSupportError(NetworkError):
def __init__(self):
super().__init__("Router does not support UPnP.")
class WalletError(BaseError):
"""
**Wallet Errors**
"""
class TransactionRejectedError(WalletError):
def __init__(self):
super().__init__("Transaction rejected, unknown reason.")
class TransactionFeeTooLowError(WalletError):
def __init__(self):
super().__init__("Fee too low.")
class TransactionInvalidSignatureError(WalletError):
def __init__(self):
super().__init__("Invalid signature.")
class InsufficientFundsError(WalletError):
"""
determined by wallet prior to attempting to broadcast a tx; this is different for example from a TX
being created and sent but then rejected by lbrycrd for unspendable utxos.
"""
def __init__(self):
super().__init__("Not enough funds to cover this transaction.")
class ChannelKeyNotFoundError(WalletError):
def __init__(self):
super().__init__("Channel signing key not found.")
class ChannelKeyInvalidError(WalletError):
"""
For example, channel was updated but you don't have the updated key.
"""
def __init__(self):
super().__init__("Channel signing key is out of date.")
class DataDownloadError(WalletError):
def __init__(self):
super().__init__("Failed to download blob. *generic*")
class PrivateKeyNotFoundError(WalletError):
def __init__(self, key, value):
self.key = key
self.value = value
super().__init__(f"Couldn't find private key for {key} '{value}'.")
class ResolveError(WalletError):
def __init__(self, url):
self.url = url
super().__init__(f"Failed to resolve '{url}'.")
class ResolveTimeoutError(WalletError):
def __init__(self, url):
self.url = url
super().__init__(f"Failed to resolve '{url}' within the timeout.")
class ResolveCensoredError(WalletError):
def __init__(self, url, censor_id, censor_row):
self.url = url
self.censor_id = censor_id
self.censor_row = censor_row
super().__init__(f"Resolve of '{url}' was censored by channel with claim id '{censor_id}'.")
class KeyFeeAboveMaxAllowedError(WalletError):
def __init__(self, message):
self.message = message
super().__init__(f"{message}")
class InvalidPasswordError(WalletError):
def __init__(self):
super().__init__("Password is invalid.")
class IncompatibleWalletServerError(WalletError):
def __init__(self, server, port):
self.server = server
self.port = port
super().__init__(f"'{server}:{port}' has an incompatibly old version.")
class TooManyClaimSearchParametersError(WalletError):
def __init__(self, key, limit):
self.key = key
self.limit = limit
super().__init__(f"{key} cant have more than {limit} items.")
class AlreadyPurchasedError(WalletError):
"""
allow-duplicate-purchase flag to override.
"""
def __init__(self, claim_id_hex):
self.claim_id_hex = claim_id_hex
super().__init__(f"You already have a purchase for claim_id '{claim_id_hex}'. Use")
class ServerPaymentInvalidAddressError(WalletError):
def __init__(self, address):
self.address = address
super().__init__(f"Invalid address from wallet server: '{address}' - skipping payment round.")
class ServerPaymentWalletLockedError(WalletError):
def __init__(self):
super().__init__("Cannot spend funds with locked wallet, skipping payment round.")
class ServerPaymentFeeAboveMaxAllowedError(WalletError):
def __init__(self, daily_fee, max_fee):
self.daily_fee = daily_fee
self.max_fee = max_fee
super().__init__(f"Daily server fee of {daily_fee} exceeds maximum configured of {max_fee} LBC.")
class WalletNotLoadedError(WalletError):
def __init__(self, wallet_id):
self.wallet_id = wallet_id
super().__init__(f"Wallet {wallet_id} is not loaded.")
class WalletAlreadyLoadedError(WalletError):
def __init__(self, wallet_path):
self.wallet_path = wallet_path
super().__init__(f"Wallet {wallet_path} is already loaded.")
class WalletNotFoundError(WalletError):
def __init__(self, wallet_path):
self.wallet_path = wallet_path
super().__init__(f"Wallet not found at {wallet_path}.")
class WalletAlreadyExistsError(WalletError):
def __init__(self, wallet_path):
self.wallet_path = wallet_path
super().__init__(f"Wallet {wallet_path} already exists, use `wallet_add` to load it.")
class BlobError(BaseError):
"""
**Blobs**
"""
class BlobNotFoundError(BlobError):
def __init__(self):
super().__init__("Blob not found.")
class BlobPermissionDeniedError(BlobError):
def __init__(self):
super().__init__("Permission denied to read blob.")
class BlobTooBigError(BlobError):
def __init__(self):
super().__init__("Blob is too big.")
class BlobEmptyError(BlobError):
def __init__(self):
super().__init__("Blob is empty.")
class BlobFailedDecryptionError(BlobError):
def __init__(self):
super().__init__("Failed to decrypt blob.")
class CorruptBlobError(BlobError):
def __init__(self):
super().__init__("Blobs is corrupted.")
class BlobFailedEncryptionError(BlobError):
def __init__(self):
super().__init__("Failed to encrypt blob.")
class DownloadCancelledError(BlobError):
def __init__(self):
super().__init__("Download was canceled.")
class DownloadSDTimeoutError(BlobError):
def __init__(self, download):
self.download = download
super().__init__(f"Failed to download sd blob {download} within timeout.")
class DownloadDataTimeoutError(BlobError):
def __init__(self, download):
self.download = download
super().__init__(f"Failed to download data blobs for sd hash {download} within timeout.")
class InvalidStreamDescriptorError(BlobError):
def __init__(self, message):
self.message = message
super().__init__(f"{message}")
class InvalidDataError(BlobError):
def __init__(self, message):
self.message = message
super().__init__(f"{message}")
class InvalidBlobHashError(BlobError):
def __init__(self, message):
self.message = message
super().__init__(f"{message}")
class ComponentError(BaseError):
"""
**Components**
"""
class ComponentStartConditionNotMetError(ComponentError):
def __init__(self, components):
self.components = components
super().__init__(f"Unresolved dependencies for: {components}")
class ComponentsNotStartedError(ComponentError):
def __init__(self, message):
self.message = message
super().__init__(f"{message}")
class CurrencyExchangeError(BaseError):
"""
**Currency Exchange**
"""
class InvalidExchangeRateResponseError(CurrencyExchangeError):
def __init__(self, source, reason):
self.source = source
self.reason = reason
super().__init__(f"Failed to get exchange rate from {source}: {reason}")
class CurrencyConversionError(CurrencyExchangeError):
def __init__(self, message):
self.message = message
super().__init__(f"{message}")
class InvalidCurrencyError(CurrencyExchangeError):
def __init__(self, currency):
self.currency = currency
super().__init__(f"Invalid currency: {currency} is not a supported currency.")

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from binascii import hexlify
def claim_id(claim_hash):
return hexlify(claim_hash[::-1]).decode()
class BaseError(Exception):
pass

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import re
import sys
import argparse
from pathlib import Path
from textwrap import fill, indent
INDENT = ' ' * 4
CLASS = """
class {name}({parents}):{doc}
"""
INIT = """
def __init__({args}):{fields}
super().__init__({format}"{message}")
"""
FUNCTIONS = ['claim_id']
class ErrorClass:
def __init__(self, hierarchy, name, message):
self.hierarchy = hierarchy.replace('**', '')
self.other_parents = []
if '(' in name:
assert ')' in name, f"Missing closing parenthesis in '{name}'."
self.other_parents = name[name.find('(')+1:name.find(')')].split(',')
name = name[:name.find('(')]
self.name = name
self.class_name = name+'Error'
self.message = message
self.comment = ""
if '--' in message:
self.message, self.comment = message.split('--')
self.message = self.message.strip()
self.comment = self.comment.strip()
@property
def is_leaf(self):
return 'x' not in self.hierarchy
@property
def code(self):
return self.hierarchy.replace('x', '')
@property
def parent_codes(self):
return self.hierarchy[0:2], self.hierarchy[0]
def get_arguments(self):
args = ['self']
for arg in re.findall('{([a-z0-1_()]+)}', self.message):
for func in FUNCTIONS:
if arg.startswith(f'{func}('):
arg = arg[len(f'{func}('):-1]
break
args.append(arg)
return args
@staticmethod
def get_fields(args):
if len(args) > 1:
return ''.join(f'\n{INDENT*2}self.{field} = {field}' for field in args[1:])
return ''
@staticmethod
def get_doc_string(doc):
if doc:
return f'\n{INDENT}"""\n{indent(fill(doc, 100), INDENT)}\n{INDENT}"""'
return ""
def render(self, out, parent):
if not parent:
parents = ['BaseError']
else:
parents = [parent.class_name]
parents += self.other_parents
args = self.get_arguments()
if self.is_leaf:
out.write((CLASS + INIT).format(
name=self.class_name, parents=', '.join(parents),
args=', '.join(args), fields=self.get_fields(args),
message=self.message, doc=self.get_doc_string(self.comment), format='f' if len(args) > 1 else ''
))
else:
out.write(CLASS.format(
name=self.class_name, parents=', '.join(parents),
doc=self.get_doc_string(self.comment or self.message)
))
def get_errors():
with open('README.md', 'r') as readme:
lines = iter(readme.readlines())
for line in lines:
if line.startswith('## Exceptions Table'):
break
for line in lines:
if line.startswith('---:|'):
break
for line in lines:
if not line:
break
yield ErrorClass(*[c.strip() for c in line.split('|')])
def find_parent(stack, child):
for parent_code in child.parent_codes:
parent = stack.get(parent_code)
if parent:
return parent
def generate(out):
out.write(f"from .base import BaseError, {', '.join(FUNCTIONS)}\n")
stack = {}
for error in get_errors():
error.render(out, find_parent(stack, error))
if not error.is_leaf:
assert error.code not in stack, f"Duplicate code: {error.code}"
stack[error.code] = error
def analyze():
errors = {e.class_name: [] for e in get_errors() if e.is_leaf}
here = Path(__file__).absolute().parents[0]
module = here.parent
for file_path in module.glob('**/*.py'):
if here in file_path.parents:
continue
with open(file_path) as src_file:
src = src_file.read()
for error in errors.keys():
found = src.count(error)
if found > 0:
errors[error].append((file_path, found))
print('Unused Errors:\n')
for error, used in errors.items():
if used:
print(f' - {error}')
for use in used:
print(f' {use[0].relative_to(module.parent)} {use[1]}')
print('')
print('')
print('Unused Errors:')
for error, used in errors.items():
if not used:
print(f' - {error}')
def main():
parser = argparse.ArgumentParser()
parser.add_argument("action", choices=['generate', 'analyze'])
args = parser.parse_args()
if args.action == "analyze":
analyze()
elif args.action == "generate":
generate(sys.stdout)
if __name__ == "__main__":
main()

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import logging
import itertools
import time
import json
import typing
import asyncio
import inspect
from asyncio import Event
from collections import namedtuple
from functools import partial, lru_cache
from numbers import Number
from asyncio import Queue
from scribe.common import RPCError, CodeMessageError
from scribe import PROMETHEUS_NAMESPACE
HISTOGRAM_BUCKETS = (
.005, .01, .025, .05, .075, .1, .25, .5, .75, 1.0, 2.5, 5.0, 7.5, 10.0, 15.0, 20.0, 30.0, 60.0, float('inf')
)
NAMESPACE = "scribe"
SignatureInfo = namedtuple('SignatureInfo', 'min_args max_args '
'required_names other_names')
PARSE_ERROR = -32700
INVALID_REQUEST = -32600
METHOD_NOT_FOUND = -32601
INVALID_ARGS = -32602
INTERNAL_ERROR = -32603
QUERY_TIMEOUT = -32000
@lru_cache(256)
def signature_info(func):
params = inspect.signature(func).parameters
min_args = max_args = 0
required_names = []
other_names = []
no_names = False
for p in params.values():
if p.kind == p.POSITIONAL_OR_KEYWORD:
max_args += 1
if p.default is p.empty:
min_args += 1
required_names.append(p.name)
else:
other_names.append(p.name)
elif p.kind == p.KEYWORD_ONLY:
other_names.append(p.name)
elif p.kind == p.VAR_POSITIONAL:
max_args = None
elif p.kind == p.VAR_KEYWORD:
other_names = any
elif p.kind == p.POSITIONAL_ONLY:
max_args += 1
if p.default is p.empty:
min_args += 1
no_names = True
if no_names:
other_names = None
return SignatureInfo(min_args, max_args, required_names, other_names)
class BatchError(Exception):
def __init__(self, request):
self.request = request # BatchRequest object
class BatchRequest:
"""Used to build a batch request to send to the server. Stores
the
Attributes batch and results are initially None.
Adding an invalid request or notification immediately raises a
ProtocolError.
On exiting the with clause, it will:
1) create a Batch object for the requests in the order they were
added. If the batch is empty this raises a ProtocolError.
2) set the "batch" attribute to be that batch
3) send the batch request and wait for a response
4) raise a ProtocolError if the protocol was violated by the
server. Currently this only happens if it gave more than one
response to any request
5) otherwise there is precisely one response to each Request. Set
the "results" attribute to the tuple of results; the responses
are ordered to match the Requests in the batch. Notifications
do not get a response.
6) if raise_errors is True and any individual response was a JSON
RPC error response, or violated the protocol in some way, a
BatchError exception is raised. Otherwise the caller can be
certain each request returned a standard result.
"""
def __init__(self, session, raise_errors):
self._session = session
self._raise_errors = raise_errors
self._requests = []
self.batch = None
self.results = None
def add_request(self, method, args=()):
self._requests.append(Request(method, args))
def add_notification(self, method, args=()):
self._requests.append(Notification(method, args))
def __len__(self):
return len(self._requests)
async def __aenter__(self):
return self
async def __aexit__(self, exc_type, exc_value, traceback):
if exc_type is None:
self.batch = Batch(self._requests)
message, event = self._session.connection.send_batch(self.batch)
await self._session._send_message(message)
await event.wait()
self.results = event.result
if self._raise_errors:
if any(isinstance(item, Exception) for item in event.result):
raise BatchError(self)
class SingleRequest:
__slots__ = ('method', 'args')
def __init__(self, method, args):
if not isinstance(method, str):
raise ProtocolError(METHOD_NOT_FOUND,
'method must be a string')
if not isinstance(args, (list, tuple, dict)):
raise ProtocolError.invalid_args('request arguments must be a '
'list or a dictionary')
self.args = args
self.method = method
def __repr__(self):
return f'{self.__class__.__name__}({self.method!r}, {self.args!r})'
def __eq__(self, other):
return (isinstance(other, self.__class__) and
self.method == other.method and self.args == other.args)
class Request(SingleRequest):
def send_result(self, response):
return None
class Notification(SingleRequest):
pass
class Batch:
__slots__ = ('items', )
def __init__(self, items):
if not isinstance(items, (list, tuple)):
raise ProtocolError.invalid_request('items must be a list')
if not items:
raise ProtocolError.empty_batch()
if not (all(isinstance(item, SingleRequest) for item in items) or
all(isinstance(item, Response) for item in items)):
raise ProtocolError.invalid_request('batch must be homogeneous')
self.items = items
def __len__(self):
return len(self.items)
def __getitem__(self, item):
return self.items[item]
def __iter__(self):
return iter(self.items)
def __repr__(self):
return f'Batch({len(self.items)} items)'
class Response:
__slots__ = ('result', )
def __init__(self, result):
# Type checking happens when converting to a message
self.result = result
class ProtocolError(CodeMessageError):
def __init__(self, code, message):
super().__init__(code, message)
# If not None send this unframed message over the network
self.error_message = None
# If the error was in a JSON response message; its message ID.
# Since None can be a response message ID, "id" means the
# error was not sent in a JSON response
self.response_msg_id = id

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from asyncio import Queue
class NewlineFramer:
"""A framer for a protocol where messages are separated by newlines."""
# The default max_size value is motivated by JSONRPC, where a
# normal request will be 250 bytes or less, and a reasonable
# batch may contain 4000 requests.
def __init__(self, max_size=250 * 4000):
"""max_size - an anti-DoS measure. If, after processing an incoming
message, buffered data would exceed max_size bytes, that
buffered data is dropped entirely and the framer waits for a
newline character to re-synchronize the stream.
"""
self.max_size = max_size
self.queue = Queue()
self.received_bytes = self.queue.put_nowait
self.synchronizing = False
self.residual = b''
def frame(self, message):
return message + b'\n'
async def receive_message(self):
parts = []
buffer_size = 0
while True:
part = self.residual
self.residual = b''
if not part:
part = await self.queue.get()
npos = part.find(b'\n')
if npos == -1:
parts.append(part)
buffer_size += len(part)
# Ignore over-sized messages; re-synchronize
if buffer_size <= self.max_size:
continue
self.synchronizing = True
raise MemoryError(f'dropping message over {self.max_size:,d} '
f'bytes and re-synchronizing')
tail, self.residual = part[:npos], part[npos + 1:]
if self.synchronizing:
self.synchronizing = False
return await self.receive_message()
else:
parts.append(tail)
return b''.join(parts)

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import itertools
import json
import typing
import asyncio
from asyncio import Event
from functools import partial
from numbers import Number
from scribe.common import RPCError, CodeMessageError
from scribe.hub.common import Notification, Request, Response, Batch, ProtocolError
HISTOGRAM_BUCKETS = (
.005, .01, .025, .05, .075, .1, .25, .5, .75, 1.0, 2.5, 5.0, 7.5, 10.0, 15.0, 20.0, 30.0, 60.0, float('inf')
)
NAMESPACE = "scribe"
class JSONRPC:
"""Abstract base class that interprets and constructs JSON RPC messages."""
# Error codes. See http://www.jsonrpc.org/specification
PARSE_ERROR = -32700
INVALID_REQUEST = -32600
METHOD_NOT_FOUND = -32601
INVALID_ARGS = -32602
INTERNAL_ERROR = -32603
QUERY_TIMEOUT = -32000
# Codes specific to this library
ERROR_CODE_UNAVAILABLE = -100
# Can be overridden by derived classes
allow_batches = True
@classmethod
def _message_id(cls, message, require_id):
"""Validate the message is a dictionary and return its ID.
Raise an error if the message is invalid or the ID is of an
invalid type. If it has no ID, raise an error if require_id
is True, otherwise return None.
"""
raise NotImplementedError
@classmethod
def _validate_message(cls, message):
"""Validate other parts of the message other than those
done in _message_id."""
pass
@classmethod
def _request_args(cls, request):
"""Validate the existence and type of the arguments passed
in the request dictionary."""
raise NotImplementedError
@classmethod
def _process_request(cls, payload):
request_id = None
try:
request_id = cls._message_id(payload, False)
cls._validate_message(payload)
method = payload.get('method')
if request_id is None:
item = Notification(method, cls._request_args(payload))
else:
item = Request(method, cls._request_args(payload))
return item, request_id
except ProtocolError as error:
code, message = error.code, error.message
raise cls._error(code, message, True, request_id)
@classmethod
def _process_response(cls, payload):
request_id = None
try:
request_id = cls._message_id(payload, True)
cls._validate_message(payload)
return Response(cls.response_value(payload)), request_id
except ProtocolError as error:
code, message = error.code, error.message
raise cls._error(code, message, False, request_id)
@classmethod
def _message_to_payload(cls, message):
"""Returns a Python object or a ProtocolError."""
try:
return json.loads(message.decode())
except UnicodeDecodeError:
message = 'messages must be encoded in UTF-8'
except json.JSONDecodeError:
message = 'invalid JSON'
raise cls._error(cls.PARSE_ERROR, message, True, None)
@classmethod
def _error(cls, code, message, send, msg_id):
error = ProtocolError(code, message)
if send:
error.error_message = cls.response_message(error, msg_id)
else:
error.response_msg_id = msg_id
return error
#
# External API
#
@classmethod
def message_to_item(cls, message):
"""Translate an unframed received message and return an
(item, request_id) pair.
The item can be a Request, Notification, Response or a list.
A JSON RPC error response is returned as an RPCError inside a
Response object.
If a Batch is returned, request_id is an iterable of request
ids, one per batch member.
If the message violates the protocol in some way a
ProtocolError is returned, except if the message was
determined to be a response, in which case the ProtocolError
is placed inside a Response object. This is so that client
code can mark a request as having been responded to even if
the response was bad.
raises: ProtocolError
"""
payload = cls._message_to_payload(message)
if isinstance(payload, dict):
if 'method' in payload:
return cls._process_request(payload)
else:
return cls._process_response(payload)
elif isinstance(payload, list) and cls.allow_batches:
if not payload:
raise cls._error(JSONRPC.INVALID_REQUEST, 'batch is empty',
True, None)
return payload, None
raise cls._error(cls.INVALID_REQUEST,
'request object must be a dictionary', True, None)
# Message formation
@classmethod
def request_message(cls, item, request_id):
"""Convert an RPCRequest item to a message."""
assert isinstance(item, Request)
return cls.encode_payload(cls.request_payload(item, request_id))
@classmethod
def notification_message(cls, item):
"""Convert an RPCRequest item to a message."""
assert isinstance(item, Notification)
return cls.encode_payload(cls.request_payload(item, None))
@classmethod
def response_message(cls, result, request_id):
"""Convert a response result (or RPCError) to a message."""
if isinstance(result, CodeMessageError):
payload = cls.error_payload(result, request_id)
else:
payload = cls.response_payload(result, request_id)
return cls.encode_payload(payload)
@classmethod
def batch_message(cls, batch, request_ids):
"""Convert a request Batch to a message."""
assert isinstance(batch, Batch)
if not cls.allow_batches:
raise ProtocolError.invalid_request(
'protocol does not permit batches')
id_iter = iter(request_ids)
rm = cls.request_message
nm = cls.notification_message
parts = (rm(request, next(id_iter)) if isinstance(request, Request)
else nm(request) for request in batch)
return cls.batch_message_from_parts(parts)
@classmethod
def batch_message_from_parts(cls, messages):
"""Convert messages, one per batch item, into a batch message. At
least one message must be passed.
"""
# Comma-separate the messages and wrap the lot in square brackets
middle = b', '.join(messages)
if not middle:
raise ProtocolError.empty_batch()
return b''.join([b'[', middle, b']'])
@classmethod
def encode_payload(cls, payload):
"""Encode a Python object as JSON and convert it to bytes."""
try:
return json.dumps(payload).encode()
except TypeError:
msg = f'JSON payload encoding error: {payload}'
raise ProtocolError(cls.INTERNAL_ERROR, msg) from None
class JSONRPCv1(JSONRPC):
"""JSON RPC version 1.0."""
allow_batches = False
@classmethod
def _message_id(cls, message, require_id):
# JSONv1 requires an ID always, but without constraint on its type
# No need to test for a dictionary here as we don't handle batches.
if 'id' not in message:
raise ProtocolError.invalid_request('request has no "id"')
return message['id']
@classmethod
def _request_args(cls, request):
args = request.get('params')
if not isinstance(args, list):
raise ProtocolError.invalid_args(
f'invalid request arguments: {args}')
return args
@classmethod
def _best_effort_error(cls, error):
# Do our best to interpret the error
code = cls.ERROR_CODE_UNAVAILABLE
message = 'no error message provided'
if isinstance(error, str):
message = error
elif isinstance(error, int):
code = error
elif isinstance(error, dict):
if isinstance(error.get('message'), str):
message = error['message']
if isinstance(error.get('code'), int):
code = error['code']
return RPCError(code, message)
@classmethod
def response_value(cls, payload):
if 'result' not in payload or 'error' not in payload:
raise ProtocolError.invalid_request(
'response must contain both "result" and "error"')
result = payload['result']
error = payload['error']
if error is None:
return result # It seems None can be a valid result
if result is not None:
raise ProtocolError.invalid_request(
'response has a "result" and an "error"')
return cls._best_effort_error(error)
@classmethod
def request_payload(cls, request, request_id):
"""JSON v1 request (or notification) payload."""
if isinstance(request.args, dict):
raise ProtocolError.invalid_args(
'JSONRPCv1 does not support named arguments')
return {
'method': request.method,
'params': request.args,
'id': request_id
}
@classmethod
def response_payload(cls, result, request_id):
"""JSON v1 response payload."""
return {
'result': result,
'error': None,
'id': request_id
}
@classmethod
def error_payload(cls, error, request_id):
return {
'result': None,
'error': {'code': error.code, 'message': error.message},
'id': request_id
}
class JSONRPCv2(JSONRPC):
"""JSON RPC version 2.0."""
@classmethod
def _message_id(cls, message, require_id):
if not isinstance(message, dict):
raise ProtocolError.invalid_request(
'request object must be a dictionary')
if 'id' in message:
request_id = message['id']
if not isinstance(request_id, (Number, str, type(None))):
raise ProtocolError.invalid_request(
f'invalid "id": {request_id}')
return request_id
else:
if require_id:
raise ProtocolError.invalid_request('request has no "id"')
return None
@classmethod
def _validate_message(cls, message):
if message.get('jsonrpc') != '2.0':
raise ProtocolError.invalid_request('"jsonrpc" is not "2.0"')
@classmethod
def _request_args(cls, request):
args = request.get('params', [])
if not isinstance(args, (dict, list)):
raise ProtocolError.invalid_args(
f'invalid request arguments: {args}')
return args
@classmethod
def response_value(cls, payload):
if 'result' in payload:
if 'error' in payload:
raise ProtocolError.invalid_request(
'response contains both "result" and "error"')
return payload['result']
if 'error' not in payload:
raise ProtocolError.invalid_request(
'response contains neither "result" nor "error"')
# Return an RPCError object
error = payload['error']
if isinstance(error, dict):
code = error.get('code')
message = error.get('message')
if isinstance(code, int) and isinstance(message, str):
return RPCError(code, message)
raise ProtocolError.invalid_request(
f'ill-formed response error object: {error}')
@classmethod
def request_payload(cls, request, request_id):
"""JSON v2 request (or notification) payload."""
payload = {
'jsonrpc': '2.0',
'method': request.method,
}
# A notification?
if request_id is not None:
payload['id'] = request_id
# Preserve empty dicts as missing params is read as an array
if request.args or request.args == {}:
payload['params'] = request.args
return payload
@classmethod
def response_payload(cls, result, request_id):
"""JSON v2 response payload."""
return {
'jsonrpc': '2.0',
'result': result,
'id': request_id
}
@classmethod
def error_payload(cls, error, request_id):
return {
'jsonrpc': '2.0',
'error': {'code': error.code, 'message': error.message},
'id': request_id
}
class JSONRPCLoose(JSONRPC):
"""A relaxed version of JSON RPC."""
# Don't be so loose we accept any old message ID
_message_id = JSONRPCv2._message_id
_validate_message = JSONRPC._validate_message
_request_args = JSONRPCv2._request_args
# Outoing messages are JSONRPCv2 so we give the other side the
# best chance to assume / detect JSONRPCv2 as default protocol.
error_payload = JSONRPCv2.error_payload
request_payload = JSONRPCv2.request_payload
response_payload = JSONRPCv2.response_payload
@classmethod
def response_value(cls, payload):
# Return result, unless it is None and there is an error
if payload.get('error') is not None:
if payload.get('result') is not None:
raise ProtocolError.invalid_request(
'response contains both "result" and "error"')
return JSONRPCv1._best_effort_error(payload['error'])
if 'result' not in payload:
raise ProtocolError.invalid_request(
'response contains neither "result" nor "error"')
# Can be None
return payload['result']
class JSONRPCAutoDetect(JSONRPCv2):
@classmethod
def message_to_item(cls, message):
return cls.detect_protocol(message), None
@classmethod
def detect_protocol(cls, message):
"""Attempt to detect the protocol from the message."""
main = cls._message_to_payload(message)
def protocol_for_payload(payload):
if not isinstance(payload, dict):
return JSONRPCLoose # Will error
# Obey an explicit "jsonrpc"
version = payload.get('jsonrpc')
if version == '2.0':
return JSONRPCv2
if version == '1.0':
return JSONRPCv1
# Now to decide between JSONRPCLoose and JSONRPCv1 if possible
if 'result' in payload and 'error' in payload:
return JSONRPCv1
return JSONRPCLoose
if isinstance(main, list):
parts = {protocol_for_payload(payload) for payload in main}
# If all same protocol, return it
if len(parts) == 1:
return parts.pop()
# If strict protocol detected, return it, preferring JSONRPCv2.
# This means a batch of JSONRPCv1 will fail
for protocol in (JSONRPCv2, JSONRPCv1):
if protocol in parts:
return protocol
# Will error if no parts
return JSONRPCLoose
return protocol_for_payload(main)
class JSONRPCConnection:
"""Maintains state of a JSON RPC connection, in particular
encapsulating the handling of request IDs.
protocol - the JSON RPC protocol to follow
max_response_size - responses over this size send an error response
instead.
"""
_id_counter = itertools.count()
def __init__(self, protocol):
self._protocol = protocol
# Sent Requests and Batches that have not received a response.
# The key is its request ID; for a batch it is sorted tuple
# of request IDs
self._requests: typing.Dict[str, typing.Tuple[Request, Event]] = {}
# A public attribute intended to be settable dynamically
self.max_response_size = 0
def _oversized_response_message(self, request_id):
text = f'response too large (over {self.max_response_size:,d} bytes'
error = RPCError.invalid_request(text)
return self._protocol.response_message(error, request_id)
def _receive_response(self, result, request_id):
if request_id not in self._requests:
if request_id is None and isinstance(result, RPCError):
message = f'diagnostic error received: {result}'
else:
message = f'response to unsent request (ID: {request_id})'
raise ProtocolError.invalid_request(message) from None
request, event = self._requests.pop(request_id)
event.result = result
event.set()
return []
def _receive_request_batch(self, payloads):
def item_send_result(request_id, result):
nonlocal size
part = protocol.response_message(result, request_id)
size += len(part) + 2
if size > self.max_response_size > 0:
part = self._oversized_response_message(request_id)
parts.append(part)
if len(parts) == count:
return protocol.batch_message_from_parts(parts)
return None
parts = []
items = []
size = 0
count = 0
protocol = self._protocol
for payload in payloads:
try:
item, request_id = protocol._process_request(payload)
items.append(item)
if isinstance(item, Request):
count += 1
item.send_result = partial(item_send_result, request_id)
except ProtocolError as error:
count += 1
parts.append(error.error_message)
if not items and parts:
protocol_error = ProtocolError(0, "")
protocol_error.error_message = protocol.batch_message_from_parts(parts)
raise protocol_error
return items
def _receive_response_batch(self, payloads):
request_ids = []
results = []
for payload in payloads:
# Let ProtocolError exceptions through
item, request_id = self._protocol._process_response(payload)
request_ids.append(request_id)
results.append(item.result)
ordered = sorted(zip(request_ids, results), key=lambda t: t[0])
ordered_ids, ordered_results = zip(*ordered)
if ordered_ids not in self._requests:
raise ProtocolError.invalid_request('response to unsent batch')
request_batch, event = self._requests.pop(ordered_ids)
event.result = ordered_results
event.set()
return []
def _send_result(self, request_id, result):
message = self._protocol.response_message(result, request_id)
if len(message) > self.max_response_size > 0:
message = self._oversized_response_message(request_id)
return message
def _event(self, request, request_id):
event = Event()
self._requests[request_id] = (request, event)
return event
#
# External API
#
def send_request(self, request: Request) -> typing.Tuple[bytes, Event]:
"""Send a Request. Return a (message, event) pair.
The message is an unframed message to send over the network.
Wait on the event for the response; which will be in the
"result" attribute.
Raises: ProtocolError if the request violates the protocol
in some way..
"""
request_id = next(self._id_counter)
message = self._protocol.request_message(request, request_id)
return message, self._event(request, request_id)
def send_notification(self, notification):
return self._protocol.notification_message(notification)
def send_batch(self, batch):
ids = tuple(next(self._id_counter)
for request in batch if isinstance(request, Request))
message = self._protocol.batch_message(batch, ids)
event = self._event(batch, ids) if ids else None
return message, event
def receive_message(self, message):
"""Call with an unframed message received from the network.
Raises: ProtocolError if the message violates the protocol in
some way. However, if it happened in a response that can be
paired with a request, the ProtocolError is instead set in the
result attribute of the send_request() that caused the error.
"""
try:
item, request_id = self._protocol.message_to_item(message)
except ProtocolError as e:
if e.response_msg_id is not id:
return self._receive_response(e, e.response_msg_id)
raise
if isinstance(item, Request):
item.send_result = partial(self._send_result, request_id)
return [item]
if isinstance(item, Notification):
return [item]
if isinstance(item, Response):
return self._receive_response(item.result, request_id)
if isinstance(item, list):
if all(isinstance(payload, dict)
and ('result' in payload or 'error' in payload)
for payload in item):
return self._receive_response_batch(item)
else:
return self._receive_request_batch(item)
else:
# Protocol auto-detection hack
assert issubclass(item, JSONRPC)
self._protocol = item
return self.receive_message(message)
def raise_pending_requests(self, exception):
exception = exception or asyncio.TimeoutError()
for request, event in self._requests.values():
event.result = exception
event.set()
self._requests.clear()
def pending_requests(self):
"""All sent requests that have not received a response."""
return [request for request, event in self._requests.values()]

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import asyncio
import itertools
import attr
import typing
import logging
from collections import defaultdict
from prometheus_client import Histogram
from scribe import PROMETHEUS_NAMESPACE
from scribe.blockchain.transaction.deserializer import Deserializer
if typing.TYPE_CHECKING:
from scribe.hub.session import SessionManager
from scribe.db import HubDB
@attr.s(slots=True)
class MemPoolTx:
prevouts = attr.ib()
# A pair is a (hashX, value) tuple
in_pairs = attr.ib()
out_pairs = attr.ib()
fee = attr.ib()
size = attr.ib()
raw_tx = attr.ib()
@attr.s(slots=True)
class MemPoolTxSummary:
hash = attr.ib()
fee = attr.ib()
has_unconfirmed_inputs = attr.ib()
NAMESPACE = f"{PROMETHEUS_NAMESPACE}_mempool"
HISTOGRAM_BUCKETS = (
.005, .01, .025, .05, .075, .1, .25, .5, .75, 1.0, 2.5, 5.0, 7.5, 10.0, 15.0, 20.0, 30.0, 60.0, float('inf')
)
mempool_process_time_metric = Histogram(
"processed_mempool", "Time to process mempool and notify touched addresses",
namespace=NAMESPACE, buckets=HISTOGRAM_BUCKETS
)
class MemPool:
def __init__(self, coin, db: 'HubDB', refresh_secs=1.0):
self.coin = coin
self._db = db
self.logger = logging.getLogger(__name__)
self.txs = {}
self.raw_mempool = {}
self.touched_hashXs: typing.DefaultDict[bytes, typing.Set[bytes]] = defaultdict(set) # None can be a key
self.refresh_secs = refresh_secs
self.mempool_process_time_metric = mempool_process_time_metric
self.session_manager: typing.Optional['SessionManager'] = None
def refresh(self) -> typing.Set[bytes]: # returns list of new touched hashXs
prefix_db = self._db.prefix_db
new_mempool = {k.tx_hash: v.raw_tx for k, v in prefix_db.mempool_tx.iterate()} # TODO: make this more efficient
self.raw_mempool.clear()
self.raw_mempool.update(new_mempool)
# hashXs = self.hashXs # hashX: [tx_hash, ...]
touched_hashXs = set()
# Remove txs that aren't in mempool anymore
for tx_hash in set(self.txs).difference(self.raw_mempool.keys()):
tx = self.txs.pop(tx_hash)
tx_hashXs = {hashX for hashX, value in tx.in_pairs}.union({hashX for hashX, value in tx.out_pairs})
for hashX in tx_hashXs:
if hashX in self.touched_hashXs and tx_hash in self.touched_hashXs[hashX]:
self.touched_hashXs[hashX].remove(tx_hash)
if not self.touched_hashXs[hashX]:
self.touched_hashXs.pop(hashX)
touched_hashXs.update(tx_hashXs)
# Re-sync with the new set of hashes
tx_map = {}
for tx_hash, raw_tx in self.raw_mempool.items():
if tx_hash in self.txs:
continue
tx, tx_size = Deserializer(raw_tx).read_tx_and_vsize()
# Convert the inputs and outputs into (hashX, value) pairs
# Drop generation-like inputs from MemPoolTx.prevouts
txin_pairs = tuple((txin.prev_hash, txin.prev_idx)
for txin in tx.inputs
if not txin.is_generation())
txout_pairs = tuple((self.coin.hashX_from_txo(txout), txout.value)
for txout in tx.outputs if txout.pk_script)
tx_map[tx_hash] = MemPoolTx(None, txin_pairs, txout_pairs, 0, tx_size, raw_tx)
for tx_hash, tx in tx_map.items():
prevouts = []
# Look up the prevouts
for prev_hash, prev_index in tx.in_pairs:
if prev_hash in self.txs: # accepted mempool
utxo = self.txs[prev_hash].out_pairs[prev_index]
elif prev_hash in tx_map: # this set of changes
utxo = tx_map[prev_hash].out_pairs[prev_index]
else: # get it from the db
prev_tx_num = prefix_db.tx_num.get(prev_hash)
if not prev_tx_num:
continue
prev_tx_num = prev_tx_num.tx_num
hashX_val = prefix_db.hashX_utxo.get(prev_hash[:4], prev_tx_num, prev_index)
if not hashX_val:
continue
hashX = hashX_val.hashX
utxo_value = prefix_db.utxo.get(hashX, prev_tx_num, prev_index)
utxo = (hashX, utxo_value.amount)
prevouts.append(utxo)
# Save the prevouts, compute the fee and accept the TX
tx.prevouts = tuple(prevouts)
# Avoid negative fees if dealing with generation-like transactions
# because some in_parts would be missing
tx.fee = max(0, (sum(v for _, v in tx.prevouts) -
sum(v for _, v in tx.out_pairs)))
self.txs[tx_hash] = tx
# print(f"added {tx_hash[::-1].hex()} reader to mempool")
for hashX, value in itertools.chain(tx.prevouts, tx.out_pairs):
self.touched_hashXs[hashX].add(tx_hash)
touched_hashXs.add(hashX)
return touched_hashXs
def transaction_summaries(self, hashX):
"""Return a list of MemPoolTxSummary objects for the hashX."""
result = []
for tx_hash in self.touched_hashXs.get(hashX, ()):
if tx_hash not in self.txs:
continue # the tx hash for the touched address is an input that isn't in mempool anymore
tx = self.txs[tx_hash]
has_ui = any(hash in self.txs for hash, idx in tx.in_pairs)
result.append(MemPoolTxSummary(tx_hash, tx.fee, has_ui))
return result
def get_mempool_height(self, tx_hash: bytes) -> int:
# Height Progression
# -2: not broadcast
# -1: in mempool but has unconfirmed inputs
# 0: in mempool and all inputs confirmed
# +num: confirmed in a specific block (height)
if tx_hash not in self.txs:
return -2
tx = self.txs[tx_hash]
unspent_inputs = any(hash in self.raw_mempool for hash, idx in tx.in_pairs)
if unspent_inputs:
return -1
return 0
async def start(self, height, session_manager: 'SessionManager'):
self.session_manager = session_manager
await self._notify_sessions(height, set(), set())
async def on_mempool(self, touched, new_touched, height):
await self._notify_sessions(height, touched, new_touched)
async def on_block(self, touched, height):
await self._notify_sessions(height, touched, set())
async def _notify_sessions(self, height, touched, new_touched):
"""Notify sessions about height changes and touched addresses."""
height_changed = height != self.session_manager.notified_height
if height_changed:
await self.session_manager._refresh_hsub_results(height)
if not self.session_manager.sessions:
return
if height_changed:
header_tasks = [
session.send_notification('blockchain.headers.subscribe', (self.session_manager.hsub_results[session.subscribe_headers_raw], ))
for session in self.session_manager.sessions.values() if session.subscribe_headers
]
if header_tasks:
self.logger.info(f'notify {len(header_tasks)} sessions of new header')
asyncio.create_task(asyncio.wait(header_tasks))
for hashX in touched.intersection(self.session_manager.mempool_statuses.keys()):
self.session_manager.mempool_statuses.pop(hashX, None)
# self.bp._chain_executor
await asyncio.get_event_loop().run_in_executor(
self._db._executor, touched.intersection_update, self.session_manager.hashx_subscriptions_by_session.keys()
)
if touched or new_touched or (height_changed and self.session_manager.mempool_statuses):
notified_hashxs = 0
session_hashxes_to_notify = defaultdict(list)
to_notify = touched if height_changed else new_touched
for hashX in to_notify:
if hashX not in self.session_manager.hashx_subscriptions_by_session:
continue
for session_id in self.session_manager.hashx_subscriptions_by_session[hashX]:
session_hashxes_to_notify[session_id].append(hashX)
notified_hashxs += 1
for session_id, hashXes in session_hashxes_to_notify.items():
asyncio.create_task(self.session_manager.sessions[session_id].send_history_notifications(*hashXes))
if session_hashxes_to_notify:
self.logger.info(f'notified {len(session_hashxes_to_notify)} sessions/{notified_hashxs:,d} touched addresses')

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import time
import logging
import asyncio
import asyncio.tasks
from aiohttp import web
from prometheus_client import generate_latest as prom_generate_latest
from prometheus_client import Counter, Histogram, Gauge
PROBES_IN_FLIGHT = Counter("probes_in_flight", "Number of loop probes in flight", namespace='asyncio')
PROBES_FINISHED = Counter("probes_finished", "Number of finished loop probes", namespace='asyncio')
PROBE_TIMES = Histogram("probe_times", "Loop probe times", namespace='asyncio')
TASK_COUNT = Gauge("running_tasks", "Number of running tasks", namespace='asyncio')
def get_loop_metrics(delay=1):
loop = asyncio.get_event_loop()
def callback(started):
PROBE_TIMES.observe(time.perf_counter() - started - delay)
PROBES_FINISHED.inc()
async def monitor_loop_responsiveness():
while True:
now = time.perf_counter()
loop.call_later(delay, callback, now)
PROBES_IN_FLIGHT.inc()
TASK_COUNT.set(len(asyncio.tasks._all_tasks))
await asyncio.sleep(delay)
return loop.create_task(monitor_loop_responsiveness())
class PrometheusServer:
def __init__(self, logger=None):
self.runner = None
self.logger = logger or logging.getLogger(__name__)
self._monitor_loop_task = None
async def start(self, interface: str, port: int):
self.logger.info("start prometheus metrics")
prom_app = web.Application()
prom_app.router.add_get('/metrics', self.handle_metrics_get_request)
self.runner = web.AppRunner(prom_app)
await self.runner.setup()
metrics_site = web.TCPSite(self.runner, interface, port, shutdown_timeout=.5)
await metrics_site.start()
self.logger.info(
'prometheus metrics server listening on %s:%i', *metrics_site._server.sockets[0].getsockname()[:2]
)
self._monitor_loop_task = get_loop_metrics()
async def handle_metrics_get_request(self, request: web.Request):
try:
return web.Response(
text=prom_generate_latest().decode(),
content_type='text/plain; version=0.0.4'
)
except Exception:
self.logger.exception('could not generate prometheus data')
raise
async def stop(self):
if self._monitor_loop_task and not self._monitor_loop_task.done():
self._monitor_loop_task.cancel()
self._monitor_loop_task = None
await self.runner.cleanup()

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import asyncio
import struct
from time import perf_counter
import logging
from typing import Optional, Tuple, NamedTuple
from scribe.schema.attrs import country_str_to_int, country_int_to_str
from scribe.common import LRUCache, is_valid_public_ipv4
# from prometheus_client import Counter
log = logging.getLogger(__name__)
_MAGIC = 1446058291 # genesis blocktime (which is actually wrong)
# ping_count_metric = Counter("ping_count", "Number of pings received", namespace='wallet_server_status')
_PAD_BYTES = b'\x00' * 64
PROTOCOL_VERSION = 1
class SPVPing(NamedTuple):
magic: int
protocol_version: int
pad_bytes: bytes
def encode(self):
return struct.pack(b'!lB64s', *self)
@staticmethod
def make() -> bytes:
return SPVPing(_MAGIC, PROTOCOL_VERSION, _PAD_BYTES).encode()
@classmethod
def decode(cls, packet: bytes):
decoded = cls(*struct.unpack(b'!lB64s', packet[:69]))
if decoded.magic != _MAGIC:
raise ValueError("invalid magic bytes")
return decoded
PONG_ENCODING = b'!BBL32s4sH'
class SPVPong(NamedTuple):
protocol_version: int
flags: int
height: int
tip: bytes
source_address_raw: bytes
country: int
def encode(self):
return struct.pack(PONG_ENCODING, *self)
@staticmethod
def encode_address(address: str):
return bytes(int(b) for b in address.split("."))
@classmethod
def make(cls, flags: int, height: int, tip: bytes, source_address: str, country: str) -> bytes:
return SPVPong(
PROTOCOL_VERSION, flags, height, tip,
cls.encode_address(source_address),
country_str_to_int(country)
).encode()
@classmethod
def make_sans_source_address(cls, flags: int, height: int, tip: bytes, country: str) -> Tuple[bytes, bytes]:
pong = cls.make(flags, height, tip, '0.0.0.0', country)
return pong[:38], pong[42:]
@classmethod
def decode(cls, packet: bytes):
return cls(*struct.unpack(PONG_ENCODING, packet[:44]))
@property
def available(self) -> bool:
return (self.flags & 0b00000001) > 0
@property
def ip_address(self) -> str:
return ".".join(map(str, self.source_address_raw))
@property
def country_name(self):
return country_int_to_str(self.country)
def __repr__(self) -> str:
return f"SPVPong(external_ip={self.ip_address}, version={self.protocol_version}, " \
f"available={'True' if self.flags & 1 > 0 else 'False'}," \
f" height={self.height}, tip={self.tip[::-1].hex()}, country={self.country_name})"
class SPVServerStatusProtocol(asyncio.DatagramProtocol):
def __init__(
self, height: int, tip: bytes, country: str,
throttle_cache_size: int = 1024, throttle_reqs_per_sec: int = 10,
allow_localhost: bool = False, allow_lan: bool = False
):
super().__init__()
self.transport: Optional[asyncio.transports.DatagramTransport] = None
self._height = height
self._tip = tip
self._flags = 0
self._country = country
self._left_cache = self._right_cache = None
self.update_cached_response()
self._throttle = LRUCache(throttle_cache_size)
self._should_log = LRUCache(throttle_cache_size)
self._min_delay = 1 / throttle_reqs_per_sec
self._allow_localhost = allow_localhost
self._allow_lan = allow_lan
self.closed = asyncio.Event()
def update_cached_response(self):
self._left_cache, self._right_cache = SPVPong.make_sans_source_address(
self._flags, max(0, self._height), self._tip, self._country
)
def set_unavailable(self):
self._flags &= 0b11111110
self.update_cached_response()
def set_available(self):
self._flags |= 0b00000001
self.update_cached_response()
def set_height(self, height: int, tip: bytes):
self._height, self._tip = height, tip
self.update_cached_response()
def should_throttle(self, host: str):
now = perf_counter()
last_requested = self._throttle.get(host, default=0)
self._throttle[host] = now
if now - last_requested < self._min_delay:
log_cnt = self._should_log.get(host, default=0) + 1
if log_cnt % 100 == 0:
log.warning("throttle spv status to %s", host)
self._should_log[host] = log_cnt
return True
return False
def make_pong(self, host):
return self._left_cache + SPVPong.encode_address(host) + self._right_cache
def datagram_received(self, data: bytes, addr: Tuple[str, int]):
if self.should_throttle(addr[0]):
return
try:
SPVPing.decode(data)
except (ValueError, struct.error, AttributeError, TypeError):
# log.exception("derp")
return
if addr[1] >= 1024 and is_valid_public_ipv4(
addr[0], allow_localhost=self._allow_localhost, allow_lan=self._allow_lan):
self.transport.sendto(self.make_pong(addr[0]), addr)
else:
log.warning("odd packet from %s:%i", addr[0], addr[1])
# ping_count_metric.inc()
def connection_made(self, transport) -> None:
self.transport = transport
self.closed.clear()
def connection_lost(self, exc: Optional[Exception]) -> None:
self.transport = None
self.closed.set()
async def close(self):
if self.transport:
self.transport.close()
await self.closed.wait()
class StatusServer:
def __init__(self):
self._protocol: Optional[SPVServerStatusProtocol] = None
async def start(self, height: int, tip: bytes, country: str, interface: str, port: int, allow_lan: bool = False):
if self.is_running:
return
loop = asyncio.get_event_loop()
interface = interface if interface.lower() != 'localhost' else '127.0.0.1'
self._protocol = SPVServerStatusProtocol(
height, tip, country, allow_localhost=interface == '127.0.0.1', allow_lan=allow_lan
)
await loop.create_datagram_endpoint(lambda: self._protocol, (interface, port))
log.info("started udp status server on %s:%i", interface, port)
async def stop(self):
if self.is_running:
await self._protocol.close()
self._protocol = None
@property
def is_running(self):
return self._protocol is not None
def set_unavailable(self):
if self.is_running:
self._protocol.set_unavailable()
def set_available(self):
if self.is_running:
self._protocol.set_available()
def set_height(self, height: int, tip: bytes):
if self.is_running:
self._protocol.set_height(height, tip)
class SPVStatusClientProtocol(asyncio.DatagramProtocol):
def __init__(self, responses: asyncio.Queue):
super().__init__()
self.transport: Optional[asyncio.transports.DatagramTransport] = None
self.responses = responses
self._ping_packet = SPVPing.make()
def datagram_received(self, data: bytes, addr: Tuple[str, int]):
try:
self.responses.put_nowait(((addr, perf_counter()), SPVPong.decode(data)))
except (ValueError, struct.error, AttributeError, TypeError, RuntimeError):
return
def connection_made(self, transport) -> None:
self.transport = transport
def connection_lost(self, exc: Optional[Exception]) -> None:
self.transport = None
log.info("closed udp spv server selection client")
def ping(self, server: Tuple[str, int]):
self.transport.sendto(self._ping_packet, server)
def close(self):
# log.info("close udp client")
if self.transport:
self.transport.close()

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from scribe.readers.interface import BaseBlockchainReader
from scribe.readers.hub_server import BlockchainReaderServer
from scribe.readers.elastic_sync import ElasticWriter

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import os
import signal
import json
import typing
import struct
from collections import defaultdict
import asyncio
import logging
from decimal import Decimal
from elasticsearch import AsyncElasticsearch, NotFoundError
from elasticsearch.helpers import async_streaming_bulk
from prometheus_client import Gauge, Histogram
from scribe.schema.result import Censor
from scribe import PROMETHEUS_NAMESPACE
from scribe.elasticsearch.notifier_protocol import ElasticNotifierProtocol
from scribe.elasticsearch.search import IndexVersionMismatch, expand_query
from scribe.elasticsearch.constants import ALL_FIELDS, INDEX_DEFAULT_SETTINGS
from scribe.elasticsearch.fast_ar_trending import FAST_AR_TRENDING_SCRIPT
from scribe.readers import BaseBlockchainReader
from scribe.db.revertable import RevertableOp
from scribe.db.common import TrendingNotification, DB_PREFIXES
log = logging.getLogger(__name__)
NAMESPACE = f"{PROMETHEUS_NAMESPACE}_elastic_sync"
HISTOGRAM_BUCKETS = (
.005, .01, .025, .05, .075, .1, .25, .5, .75, 1.0, 2.5, 5.0, 7.5, 10.0, 15.0, 20.0, 30.0, 60.0, float('inf')
)
class ElasticWriter(BaseBlockchainReader):
VERSION = 1
prometheus_namespace = ""
block_count_metric = Gauge(
"block_count", "Number of processed blocks", namespace=NAMESPACE
)
block_update_time_metric = Histogram(
"block_time", "Block update times", namespace=NAMESPACE, buckets=HISTOGRAM_BUCKETS
)
reorg_count_metric = Gauge(
"reorg_count", "Number of reorgs", namespace=NAMESPACE
)
def __init__(self, env):
super().__init__(env, 'lbry-elastic-writer', thread_workers=1, thread_prefix='lbry-elastic-writer')
# self._refresh_interval = 0.1
self._task = None
self.index = self.env.es_index_prefix + 'claims'
self._elastic_host = env.elastic_host
self._elastic_port = env.elastic_port
self.sync_timeout = 1800
self.sync_client = None
self._es_info_path = os.path.join(env.db_dir, 'es_info')
self._last_wrote_height = 0
self._last_wrote_block_hash = None
self._touched_claims = set()
self._deleted_claims = set()
self._removed_during_undo = set()
self._trending = defaultdict(list)
self._advanced = True
self.synchronized = asyncio.Event()
self._listeners: typing.List[ElasticNotifierProtocol] = []
async def run_es_notifier(self, synchronized: asyncio.Event):
server = await asyncio.get_event_loop().create_server(
lambda: ElasticNotifierProtocol(self._listeners), '127.0.0.1', self.env.elastic_notifier_port
)
self.log.info("ES notifier server listening on TCP localhost:%i", self.env.elastic_notifier_port)
synchronized.set()
async with server:
await server.serve_forever()
def notify_es_notification_listeners(self, height: int, block_hash: bytes):
for p in self._listeners:
p.send_height(height, block_hash)
self.log.info("notify listener %i", height)
def _read_es_height(self):
info = {}
if os.path.exists(self._es_info_path):
with open(self._es_info_path, 'r') as f:
info.update(json.loads(f.read()))
self._last_wrote_height = int(info.get('height', 0))
self._last_wrote_block_hash = info.get('block_hash', None)
async def read_es_height(self):
await asyncio.get_event_loop().run_in_executor(self._executor, self._read_es_height)
def write_es_height(self, height: int, block_hash: str):
with open(self._es_info_path, 'w') as f:
f.write(json.dumps({'height': height, 'block_hash': block_hash}, indent=2))
self._last_wrote_height = height
self._last_wrote_block_hash = block_hash
async def get_index_version(self) -> int:
try:
template = await self.sync_client.indices.get_template(self.index)
return template[self.index]['version']
except NotFoundError:
return 0
async def set_index_version(self, version):
await self.sync_client.indices.put_template(
self.index, body={'version': version, 'index_patterns': ['ignored']}, ignore=400
)
async def start_index(self) -> bool:
if self.sync_client:
return False
hosts = [{'host': self._elastic_host, 'port': self._elastic_port}]
self.sync_client = AsyncElasticsearch(hosts, timeout=self.sync_timeout)
while True:
try:
await self.sync_client.cluster.health(wait_for_status='yellow')
self.log.info("ES is ready to connect to")
break
except ConnectionError:
self.log.warning("Failed to connect to Elasticsearch. Waiting for it!")
await asyncio.sleep(1)
index_version = await self.get_index_version()
res = await self.sync_client.indices.create(self.index, INDEX_DEFAULT_SETTINGS, ignore=400)
acked = res.get('acknowledged', False)
if acked:
await self.set_index_version(self.VERSION)
return True
elif index_version != self.VERSION:
self.log.error("es search index has an incompatible version: %s vs %s", index_version, self.VERSION)
raise IndexVersionMismatch(index_version, self.VERSION)
else:
await self.sync_client.indices.refresh(self.index)
return False
async def stop_index(self):
if self.sync_client:
await self.sync_client.close()
self.sync_client = None
async def delete_index(self):
if self.sync_client:
return await self.sync_client.indices.delete(self.index, ignore_unavailable=True)
def update_filter_query(self, censor_type, blockdict, channels=False):
blockdict = {blocked.hex(): blocker.hex() for blocked, blocker in blockdict.items()}
if channels:
update = expand_query(channel_id__in=list(blockdict.keys()), censor_type=f"<{censor_type}")
else:
update = expand_query(claim_id__in=list(blockdict.keys()), censor_type=f"<{censor_type}")
key = 'channel_id' if channels else 'claim_id'
update['script'] = {
"source": f"ctx._source.censor_type={censor_type}; "
f"ctx._source.censoring_channel_id=params[ctx._source.{key}];",
"lang": "painless",
"params": blockdict
}
return update
async def apply_filters(self, blocked_streams, blocked_channels, filtered_streams, filtered_channels):
if filtered_streams:
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.SEARCH, filtered_streams), slices=4)
await self.sync_client.indices.refresh(self.index)
if filtered_channels:
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.SEARCH, filtered_channels), slices=4)
await self.sync_client.indices.refresh(self.index)
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.SEARCH, filtered_channels, True), slices=4)
await self.sync_client.indices.refresh(self.index)
if blocked_streams:
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.RESOLVE, blocked_streams), slices=4)
await self.sync_client.indices.refresh(self.index)
if blocked_channels:
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.RESOLVE, blocked_channels), slices=4)
await self.sync_client.indices.refresh(self.index)
await self.sync_client.update_by_query(
self.index, body=self.update_filter_query(Censor.RESOLVE, blocked_channels, True), slices=4)
await self.sync_client.indices.refresh(self.index)
@staticmethod
def _upsert_claim_query(index, claim):
return {
'doc': {key: value for key, value in claim.items() if key in ALL_FIELDS},
'_id': claim['claim_id'],
'_index': index,
'_op_type': 'update',
'doc_as_upsert': True
}
@staticmethod
def _delete_claim_query(index, claim_hash: bytes):
return {
'_index': index,
'_op_type': 'delete',
'_id': claim_hash.hex()
}
@staticmethod
def _update_trending_query(index, claim_hash, notifications):
return {
'_id': claim_hash.hex(),
'_index': index,
'_op_type': 'update',
'script': {
'lang': 'painless',
'source': FAST_AR_TRENDING_SCRIPT,
'params': {'src': {
'changes': [
{
'height': notification.height,
'prev_amount': notification.prev_amount / 1E8,
'new_amount': notification.new_amount / 1E8,
} for notification in notifications
]
}}
},
}
async def _claim_producer(self):
for deleted in self._deleted_claims:
yield self._delete_claim_query(self.index, deleted)
for touched in self._touched_claims:
claim = self.db.claim_producer(touched)
if claim:
yield self._upsert_claim_query(self.index, claim)
for claim_hash, notifications in self._trending.items():
yield self._update_trending_query(self.index, claim_hash, notifications)
def advance(self, height: int):
super().advance(height)
touched_or_deleted = self.db.prefix_db.touched_or_deleted.get(height)
for k, v in self.db.prefix_db.trending_notification.iterate((height,)):
self._trending[k.claim_hash].append(TrendingNotification(k.height, v.previous_amount, v.new_amount))
if touched_or_deleted:
readded_after_reorg = self._removed_during_undo.intersection(touched_or_deleted.touched_claims)
self._deleted_claims.difference_update(readded_after_reorg)
self._touched_claims.update(touched_or_deleted.touched_claims)
self._deleted_claims.update(touched_or_deleted.deleted_claims)
self._touched_claims.difference_update(self._deleted_claims)
for to_del in touched_or_deleted.deleted_claims:
if to_del in self._trending:
self._trending.pop(to_del)
self._advanced = True
def unwind(self):
self.db.tx_counts.pop()
reverted_block_hash = self.db.coin.header_hash(self.db.headers.pop())
packed = self.db.prefix_db.undo.get(len(self.db.tx_counts), reverted_block_hash)
touched_or_deleted = None
claims_to_delete = []
# find and apply the touched_or_deleted items in the undos for the reverted blocks
assert packed, f'missing undo information for block {len(self.db.tx_counts)}'
while packed:
op, packed = RevertableOp.unpack(packed)
if op.is_delete and op.key.startswith(DB_PREFIXES.touched_or_deleted.value):
assert touched_or_deleted is None, 'only should have one match'
touched_or_deleted = self.db.prefix_db.touched_or_deleted.unpack_value(op.value)
elif op.is_delete and op.key.startswith(DB_PREFIXES.claim_to_txo.value):
v = self.db.prefix_db.claim_to_txo.unpack_value(op.value)
if v.root_tx_num == v.tx_num and v.root_tx_num > self.db.tx_counts[-1]:
claims_to_delete.append(self.db.prefix_db.claim_to_txo.unpack_key(op.key).claim_hash)
if touched_or_deleted:
self._touched_claims.update(set(touched_or_deleted.deleted_claims).union(
touched_or_deleted.touched_claims.difference(set(claims_to_delete))))
self._deleted_claims.update(claims_to_delete)
self._removed_during_undo.update(claims_to_delete)
self._advanced = True
self.log.warning("delete %i claim and upsert %i from reorg", len(self._deleted_claims), len(self._touched_claims))
async def poll_for_changes(self):
await super().poll_for_changes()
cnt = 0
success = 0
if self._advanced:
if self._touched_claims or self._deleted_claims or self._trending:
async for ok, item in async_streaming_bulk(
self.sync_client, self._claim_producer(),
raise_on_error=False):
cnt += 1
if not ok:
self.log.warning("indexing failed for an item: %s", item)
else:
success += 1
await self.sync_client.indices.refresh(self.index)
await self.db.reload_blocking_filtering_streams()
await self.apply_filters(
self.db.blocked_streams, self.db.blocked_channels, self.db.filtered_streams,
self.db.filtered_channels
)
self.write_es_height(self.db.db_height, self.db.db_tip[::-1].hex())
self.log.info("Indexing block %i done. %i/%i successful", self._last_wrote_height, success, cnt)
self._touched_claims.clear()
self._deleted_claims.clear()
self._removed_during_undo.clear()
self._trending.clear()
self._advanced = False
self.synchronized.set()
self.notify_es_notification_listeners(self._last_wrote_height, self.db.db_tip)
@property
def last_synced_height(self) -> int:
return self._last_wrote_height
async def start(self, reindex=False):
await super().start()
def _start_cancellable(run, *args):
_flag = asyncio.Event()
self.cancellable_tasks.append(asyncio.ensure_future(run(*args, _flag)))
return _flag.wait()
self.db.open_db()
await self.db.initialize_caches()
await self.read_es_height()
await self.start_index()
self.last_state = self.db.read_db_state()
await _start_cancellable(self.run_es_notifier)
if reindex or self._last_wrote_height == 0 and self.db.db_height > 0:
if self._last_wrote_height == 0:
self.log.info("running initial ES indexing of rocksdb at block height %i", self.db.db_height)
else:
self.log.info("reindex (last wrote: %i, db height: %i)", self._last_wrote_height, self.db.db_height)
await self.reindex()
await _start_cancellable(self.refresh_blocks_forever)
async def stop(self, delete_index=False):
async with self._lock:
while self.cancellable_tasks:
t = self.cancellable_tasks.pop()
if not t.done():
t.cancel()
if delete_index:
await self.delete_index()
await self.stop_index()
self._executor.shutdown(wait=True)
self._executor = None
self.shutdown_event.set()
def run(self, reindex=False):
loop = asyncio.get_event_loop()
loop.set_default_executor(self._executor)
def __exit():
raise SystemExit()
try:
loop.add_signal_handler(signal.SIGINT, __exit)
loop.add_signal_handler(signal.SIGTERM, __exit)
loop.run_until_complete(self.start(reindex=reindex))
loop.run_until_complete(self.shutdown_event.wait())
except (SystemExit, KeyboardInterrupt):
pass
finally:
loop.run_until_complete(self.stop())
async def reindex(self):
async with self._lock:
self.log.info("reindexing %i claims (estimate)", self.db.prefix_db.claim_to_txo.estimate_num_keys())
await self.delete_index()
res = await self.sync_client.indices.create(self.index, INDEX_DEFAULT_SETTINGS, ignore=400)
acked = res.get('acknowledged', False)
if acked:
await self.set_index_version(self.VERSION)
await self.sync_client.indices.refresh(self.index)
self.write_es_height(0, self.env.coin.GENESIS_HASH)
await self._sync_all_claims()
await self.sync_client.indices.refresh(self.index)
self.write_es_height(self.db.db_height, self.db.db_tip[::-1].hex())
self.notify_es_notification_listeners(self.db.db_height, self.db.db_tip)
self.log.info("finished reindexing")
async def _sync_all_claims(self, batch_size=100000):
def load_historic_trending():
notifications = self._trending
for k, v in self.db.prefix_db.trending_notification.iterate():
notifications[k.claim_hash].append(TrendingNotification(k.height, v.previous_amount, v.new_amount))
async def all_claims_producer():
async for claim in self.db.all_claims_producer(batch_size=batch_size):
yield self._upsert_claim_query(self.index, claim)
claim_hash = bytes.fromhex(claim['claim_id'])
if claim_hash in self._trending:
yield self._update_trending_query(self.index, claim_hash, self._trending.pop(claim_hash))
self._trending.clear()
self.log.info("loading about %i historic trending updates", self.db.prefix_db.trending_notification.estimate_num_keys())
await asyncio.get_event_loop().run_in_executor(self._executor, load_historic_trending)
self.log.info("loaded historic trending updates for %i claims", len(self._trending))
cnt = 0
success = 0
producer = all_claims_producer()
finished = False
try:
async for ok, item in async_streaming_bulk(self.sync_client, producer, raise_on_error=False):
cnt += 1
if not ok:
self.log.warning("indexing failed for an item: %s", item)
else:
success += 1
if cnt % batch_size == 0:
self.log.info(f"indexed {success} claims")
finished = True
await self.sync_client.indices.refresh(self.index)
self.log.info("indexed %i/%i claims", success, cnt)
finally:
if not finished:
await producer.aclose()
self.shutdown_event.set()

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import signal
import asyncio
import typing
from scribe import __version__
from scribe.blockchain.daemon import LBCDaemon
from scribe.readers import BaseBlockchainReader
from scribe.elasticsearch import ElasticNotifierClientProtocol
from scribe.hub.session import SessionManager
from scribe.hub.mempool import MemPool
from scribe.hub.udp import StatusServer
from scribe.hub.prometheus import PrometheusServer
class BlockchainReaderServer(BaseBlockchainReader):
def __init__(self, env):
super().__init__(env, 'lbry-reader', thread_workers=max(1, env.max_query_workers), thread_prefix='hub-worker')
self.history_cache = {}
self.resolve_outputs_cache = {}
self.resolve_cache = {}
self.notifications_to_send = []
self.mempool_notifications = set()
self.status_server = StatusServer()
self.daemon = LBCDaemon(env.coin, env.daemon_url) # only needed for broadcasting txs
self.prometheus_server: typing.Optional[PrometheusServer] = None
self.mempool = MemPool(self.env.coin, self.db)
self.session_manager = SessionManager(
env, self.db, self.mempool, self.history_cache, self.resolve_cache,
self.resolve_outputs_cache, self.daemon,
self.shutdown_event,
on_available_callback=self.status_server.set_available,
on_unavailable_callback=self.status_server.set_unavailable
)
self.mempool.session_manager = self.session_manager
self.es_notifications = asyncio.Queue()
self.es_notification_client = ElasticNotifierClientProtocol(self.es_notifications)
self.synchronized = asyncio.Event()
self._es_height = None
self._es_block_hash = None
def clear_caches(self):
self.history_cache.clear()
self.resolve_outputs_cache.clear()
self.resolve_cache.clear()
# self.clear_search_cache()
# self.mempool.notified_mempool_txs.clear()
def clear_search_cache(self):
self.session_manager.search_index.clear_caches()
def advance(self, height: int):
super().advance(height)
touched_hashXs = self.db.prefix_db.touched_hashX.get(height).touched_hashXs
self.notifications_to_send.append((set(touched_hashXs), height))
def _detect_changes(self):
super()._detect_changes()
self.mempool_notifications.update(self.mempool.refresh())
async def poll_for_changes(self):
await super().poll_for_changes()
if self.db.fs_height <= 0:
return
self.status_server.set_height(self.db.fs_height, self.db.db_tip)
if self.notifications_to_send:
for (touched, height) in self.notifications_to_send:
await self.mempool.on_block(touched, height)
self.log.info("reader advanced to %i", height)
if self._es_height == self.db.db_height:
self.synchronized.set()
if self.mempool_notifications:
await self.mempool.on_mempool(
set(self.mempool.touched_hashXs), self.mempool_notifications, self.db.db_height
)
self.mempool_notifications.clear()
self.notifications_to_send.clear()
async def receive_es_notifications(self, synchronized: asyncio.Event):
await asyncio.get_event_loop().create_connection(
lambda: self.es_notification_client, '127.0.0.1', self.env.elastic_notifier_port
)
synchronized.set()
try:
while True:
self._es_height, self._es_block_hash = await self.es_notifications.get()
self.clear_search_cache()
if self.last_state and self._es_block_hash == self.last_state.tip:
self.synchronized.set()
self.log.info("es and reader are in sync at block %i", self.last_state.height)
else:
self.log.info("es and reader are not yet in sync (block %s vs %s)", self._es_height,
self.db.db_height)
finally:
self.es_notification_client.close()
async def start(self):
await super().start()
env = self.env
# min_str, max_str = env.coin.SESSIONCLS.protocol_min_max_strings()
self.log.info(f'software version: {__version__}')
# self.log.info(f'supported protocol versions: {min_str}-{max_str}')
self.log.info(f'event loop policy: {env.loop_policy}')
self.log.info(f'reorg limit is {env.reorg_limit:,d} blocks')
await self.daemon.height()
def _start_cancellable(run, *args):
_flag = asyncio.Event()
self.cancellable_tasks.append(asyncio.ensure_future(run(*args, _flag)))
return _flag.wait()
self.db.open_db()
await self.db.initialize_caches()
self.last_state = self.db.read_db_state()
await self.start_prometheus()
if self.env.udp_port and int(self.env.udp_port):
await self.status_server.start(
0, bytes.fromhex(self.env.coin.GENESIS_HASH)[::-1], self.env.country,
self.env.host, self.env.udp_port, self.env.allow_lan_udp
)
await _start_cancellable(self.receive_es_notifications)
await _start_cancellable(self.refresh_blocks_forever)
await self.session_manager.search_index.start()
await _start_cancellable(self.session_manager.serve, self.mempool)
async def stop(self):
await self.status_server.stop()
async with self._lock:
while self.cancellable_tasks:
t = self.cancellable_tasks.pop()
if not t.done():
t.cancel()
await self.session_manager.search_index.stop()
self.db.close()
if self.prometheus_server:
await self.prometheus_server.stop()
self.prometheus_server = None
await self.daemon.close()
self._executor.shutdown(wait=True)
self._executor = None
self.shutdown_event.set()
def run(self):
loop = asyncio.get_event_loop()
loop.set_default_executor(self._executor)
def __exit():
raise SystemExit()
try:
loop.add_signal_handler(signal.SIGINT, __exit)
loop.add_signal_handler(signal.SIGTERM, __exit)
loop.run_until_complete(self.start())
loop.run_until_complete(self.shutdown_event.wait())
except (SystemExit, KeyboardInterrupt):
pass
finally:
loop.run_until_complete(self.stop())
async def start_prometheus(self):
if not self.prometheus_server and self.env.prometheus_port:
self.prometheus_server = PrometheusServer()
await self.prometheus_server.start("0.0.0.0", self.env.prometheus_port)

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import logging
import asyncio
import typing
from concurrent.futures.thread import ThreadPoolExecutor
from prometheus_client import Gauge, Histogram
from scribe import PROMETHEUS_NAMESPACE
from scribe.db.prefixes import DBState
from scribe.db import HubDB
HISTOGRAM_BUCKETS = (
.005, .01, .025, .05, .075, .1, .25, .5, .75, 1.0, 2.5, 5.0, 7.5, 10.0, 15.0, 20.0, 30.0, 60.0, float('inf')
)
NAMESPACE = f"{PROMETHEUS_NAMESPACE}_reader"
class BaseBlockchainReader:
block_count_metric = Gauge(
"block_count", "Number of processed blocks", namespace=NAMESPACE
)
block_update_time_metric = Histogram(
"block_time", "Block update times", namespace=NAMESPACE, buckets=HISTOGRAM_BUCKETS
)
reorg_count_metric = Gauge(
"reorg_count", "Number of reorgs", namespace=NAMESPACE
)
def __init__(self, env, secondary_name: str, thread_workers: int = 1, thread_prefix: str = 'blockchain-reader'):
self.env = env
self.log = logging.getLogger(__name__).getChild(self.__class__.__name__)
self.shutdown_event = asyncio.Event()
self.cancellable_tasks = []
self._thread_workers = thread_workers
self._thread_prefix = thread_prefix
self._executor = ThreadPoolExecutor(thread_workers, thread_name_prefix=thread_prefix)
self.db = HubDB(
env.coin, env.db_dir, env.cache_MB, env.reorg_limit, env.cache_all_claim_txos, env.cache_all_tx_hashes,
secondary_name=secondary_name, max_open_files=-1, blocking_channel_ids=env.blocking_channel_ids,
filtering_channel_ids=env.filtering_channel_ids, executor=self._executor
)
self.last_state: typing.Optional[DBState] = None
self._refresh_interval = 0.1
self._lock = asyncio.Lock()
def _detect_changes(self):
try:
self.db.prefix_db.try_catch_up_with_primary()
except:
self.log.exception('failed to update secondary db')
raise
state = self.db.prefix_db.db_state.get()
if not state or state.height <= 0:
return
if self.last_state and self.last_state.height > state.height:
self.log.warning("reorg detected, waiting until the writer has flushed the new blocks to advance")
return
last_height = 0 if not self.last_state else self.last_state.height
rewound = False
if self.last_state:
while True:
if self.db.headers[-1] == self.db.prefix_db.header.get(last_height, deserialize_value=False):
self.log.debug("connects to block %i", last_height)
break
else:
self.log.warning("disconnect block %i", last_height)
self.unwind()
rewound = True
last_height -= 1
if rewound:
self.reorg_count_metric.inc()
self.db.read_db_state()
if not self.last_state or last_height < state.height:
for height in range(last_height + 1, state.height + 1):
self.log.info("advancing to %i", height)
self.advance(height)
self.clear_caches()
self.last_state = state
self.block_count_metric.set(self.last_state.height)
self.db.blocked_streams, self.db.blocked_channels = self.db.get_streams_and_channels_reposted_by_channel_hashes(
self.db.blocking_channel_hashes
)
self.db.filtered_streams, self.db.filtered_channels = self.db.get_streams_and_channels_reposted_by_channel_hashes(
self.db.filtering_channel_hashes
)
async def poll_for_changes(self):
await asyncio.get_event_loop().run_in_executor(self._executor, self._detect_changes)
async def refresh_blocks_forever(self, synchronized: asyncio.Event):
while True:
try:
async with self._lock:
await self.poll_for_changes()
except asyncio.CancelledError:
raise
except:
self.log.exception("blockchain reader main loop encountered an unexpected error")
raise
await asyncio.sleep(self._refresh_interval)
synchronized.set()
def clear_caches(self):
pass
def advance(self, height: int):
tx_count = self.db.prefix_db.tx_count.get(height).tx_count
assert tx_count not in self.db.tx_counts, f'boom {tx_count} in {len(self.db.tx_counts)} tx counts'
assert len(self.db.tx_counts) == height, f"{len(self.db.tx_counts)} != {height}"
self.db.tx_counts.append(tx_count)
self.db.headers.append(self.db.prefix_db.header.get(height, deserialize_value=False))
def unwind(self):
self.db.tx_counts.pop()
self.db.headers.pop()
async def start(self):
if not self._executor:
self._executor = ThreadPoolExecutor(self._thread_workers, thread_name_prefix=self._thread_prefix)
self.db._executor = self._executor

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build:
rm types/v2/* -rf
touch types/v2/__init__.py
cd types/v2/ && protoc --python_out=. -I ../../../../../types/v2/proto/ ../../../../../types/v2/proto/*.proto
sed -e 's/^import\ \(.*\)_pb2\ /from . import\ \1_pb2\ /g' -i types/v2/*.py

24
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Schema
=====
Those files are generated from the [types repo](https://github.com/lbryio/types). If you are modifying/adding a new type, make sure it is cloned in the same root folder as the SDK repo, like:
```
repos/
- lbry-sdk/
- types/
```
Then, [download protoc 3.2.0](https://github.com/protocolbuffers/protobuf/releases/tag/v3.2.0), add it to your PATH. On linux it is:
```bash
cd ~/.local/bin
wget https://github.com/protocolbuffers/protobuf/releases/download/v3.2.0/protoc-3.2.0-linux-x86_64.zip
unzip protoc-3.2.0-linux-x86_64.zip bin/protoc -d..
```
Finally, `make` should update everything in place.
### Why protoc 3.2.0?
Different/newer versions will generate larger diffs and we need to make sure they are good. In theory, we can just update to latest and it will all work, but it is a good practice to check blockchain data and retro compatibility before bumping versions (if you do, please update this section!).

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from .claim import Claim

573
scribe/schema/attrs.py Normal file
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import json
import logging
import os.path
import hashlib
from typing import Tuple, List
from string import ascii_letters
from decimal import Decimal, ROUND_UP
from google.protobuf.json_format import MessageToDict
from scribe.base58 import Base58, b58_encode
from scribe.error import MissingPublishedFileError, EmptyPublishedFileError
from scribe.schema.mime_types import guess_media_type
from scribe.schema.base import Metadata, BaseMessageList
from scribe.schema.tags import clean_tags, normalize_tag
from scribe.schema.types.v2.claim_pb2 import (
Fee as FeeMessage,
Location as LocationMessage,
Language as LanguageMessage
)
log = logging.getLogger(__name__)
CENT = 1000000
COIN = 100*CENT
def calculate_sha384_file_hash(file_path):
sha384 = hashlib.sha384()
with open(file_path, 'rb') as f:
for chunk in iter(lambda: f.read(128 * sha384.block_size), b''):
sha384.update(chunk)
return sha384.digest()
def country_int_to_str(country: int) -> str:
r = LocationMessage.Country.Name(country)
return r[1:] if r.startswith('R') else r
def country_str_to_int(country: str) -> int:
if len(country) == 3:
country = 'R' + country
return LocationMessage.Country.Value(country)
class Dimmensional(Metadata):
__slots__ = ()
@property
def width(self) -> int:
return self.message.width
@width.setter
def width(self, width: int):
self.message.width = width
@property
def height(self) -> int:
return self.message.height
@height.setter
def height(self, height: int):
self.message.height = height
@property
def dimensions(self) -> Tuple[int, int]:
return self.width, self.height
@dimensions.setter
def dimensions(self, dimensions: Tuple[int, int]):
self.message.width, self.message.height = dimensions
def _extract(self, file_metadata, field):
try:
setattr(self, field, file_metadata.getValues(field)[0])
except:
log.exception(f'Could not extract {field} from file metadata.')
def update(self, file_metadata=None, height=None, width=None):
if height is not None:
self.height = height
elif file_metadata:
self._extract(file_metadata, 'height')
if width is not None:
self.width = width
elif file_metadata:
self._extract(file_metadata, 'width')
class Playable(Metadata):
__slots__ = ()
@property
def duration(self) -> int:
return self.message.duration
@duration.setter
def duration(self, duration: int):
self.message.duration = duration
def update(self, file_metadata=None, duration=None):
if duration is not None:
self.duration = duration
elif file_metadata:
try:
self.duration = file_metadata.getValues('duration')[0].seconds
except:
log.exception('Could not extract duration from file metadata.')
class Image(Dimmensional):
__slots__ = ()
class Audio(Playable):
__slots__ = ()
class Video(Dimmensional, Playable):
__slots__ = ()
def update(self, file_metadata=None, height=None, width=None, duration=None):
Dimmensional.update(self, file_metadata, height, width)
Playable.update(self, file_metadata, duration)
class Source(Metadata):
__slots__ = ()
def update(self, file_path=None):
if file_path is not None:
self.name = os.path.basename(file_path)
self.media_type, stream_type = guess_media_type(file_path)
if not os.path.isfile(file_path):
raise MissingPublishedFileError(file_path)
self.size = os.path.getsize(file_path)
if self.size == 0:
raise EmptyPublishedFileError(file_path)
self.file_hash_bytes = calculate_sha384_file_hash(file_path)
return stream_type
@property
def name(self) -> str:
return self.message.name
@name.setter
def name(self, name: str):
self.message.name = name
@property
def size(self) -> int:
return self.message.size
@size.setter
def size(self, size: int):
self.message.size = size
@property
def media_type(self) -> str:
return self.message.media_type
@media_type.setter
def media_type(self, media_type: str):
self.message.media_type = media_type
@property
def file_hash(self) -> str:
return self.message.hash.hex()
@file_hash.setter
def file_hash(self, file_hash: str):
self.message.hash = bytes.fromhex(file_hash)
@property
def file_hash_bytes(self) -> bytes:
return self.message.hash
@file_hash_bytes.setter
def file_hash_bytes(self, file_hash_bytes: bytes):
self.message.hash = file_hash_bytes
@property
def sd_hash(self) -> str:
return self.message.sd_hash.hex()
@sd_hash.setter
def sd_hash(self, sd_hash: str):
self.message.sd_hash = bytes.fromhex(sd_hash)
@property
def sd_hash_bytes(self) -> bytes:
return self.message.sd_hash
@sd_hash_bytes.setter
def sd_hash_bytes(self, sd_hash: bytes):
self.message.sd_hash = sd_hash
@property
def bt_infohash(self) -> str:
return self.message.bt_infohash.hex()
@bt_infohash.setter
def bt_infohash(self, bt_infohash: str):
self.message.bt_infohash = bytes.fromhex(bt_infohash)
@property
def bt_infohash_bytes(self) -> bytes:
return self.message.bt_infohash.decode()
@bt_infohash_bytes.setter
def bt_infohash_bytes(self, bt_infohash: bytes):
self.message.bt_infohash = bt_infohash
@property
def url(self) -> str:
return self.message.url
@url.setter
def url(self, url: str):
self.message.url = url
class Fee(Metadata):
__slots__ = ()
def update(self, address: str = None, currency: str = None, amount=None):
if amount:
currency = (currency or self.currency or '').lower()
if not currency:
raise Exception('In order to set a fee amount, please specify a fee currency.')
if currency not in ('lbc', 'btc', 'usd'):
raise Exception(f'Missing or unknown currency provided: {currency}')
setattr(self, currency, Decimal(amount))
elif currency:
raise Exception('In order to set a fee currency, please specify a fee amount.')
if address:
if not self.currency:
raise Exception('In order to set a fee address, please specify a fee amount and currency.')
self.address = address
@property
def currency(self) -> str:
if self.message.currency:
return FeeMessage.Currency.Name(self.message.currency)
@property
def address(self) -> str:
if self.address_bytes:
return b58_encode(self.address_bytes)
@address.setter
def address(self, address: str):
self.address_bytes = Base58.decode(address)
@property
def address_bytes(self) -> bytes:
return self.message.address
@address_bytes.setter
def address_bytes(self, address: bytes):
self.message.address = address
@property
def amount(self) -> Decimal:
if self.currency == 'LBC':
return self.lbc
if self.currency == 'BTC':
return self.btc
if self.currency == 'USD':
return self.usd
DEWIES = Decimal(COIN)
@property
def lbc(self) -> Decimal:
if self.message.currency != FeeMessage.LBC:
raise ValueError('LBC can only be returned for LBC fees.')
return Decimal(self.message.amount / self.DEWIES)
@lbc.setter
def lbc(self, amount: Decimal):
self.dewies = int(amount * self.DEWIES)
@property
def dewies(self) -> int:
if self.message.currency != FeeMessage.LBC:
raise ValueError('Dewies can only be returned for LBC fees.')
return self.message.amount
@dewies.setter
def dewies(self, amount: int):
self.message.amount = amount
self.message.currency = FeeMessage.LBC
SATOSHIES = Decimal(COIN)
@property
def btc(self) -> Decimal:
if self.message.currency != FeeMessage.BTC:
raise ValueError('BTC can only be returned for BTC fees.')
return Decimal(self.message.amount / self.SATOSHIES)
@btc.setter
def btc(self, amount: Decimal):
self.satoshis = int(amount * self.SATOSHIES)
@property
def satoshis(self) -> int:
if self.message.currency != FeeMessage.BTC:
raise ValueError('Satoshies can only be returned for BTC fees.')
return self.message.amount
@satoshis.setter
def satoshis(self, amount: int):
self.message.amount = amount
self.message.currency = FeeMessage.BTC
PENNIES = Decimal('100.0')
PENNY = Decimal('0.01')
@property
def usd(self) -> Decimal:
if self.message.currency != FeeMessage.USD:
raise ValueError('USD can only be returned for USD fees.')
return Decimal(self.message.amount / self.PENNIES)
@usd.setter
def usd(self, amount: Decimal):
self.pennies = int(amount.quantize(self.PENNY, ROUND_UP) * self.PENNIES)
@property
def pennies(self) -> int:
if self.message.currency != FeeMessage.USD:
raise ValueError('Pennies can only be returned for USD fees.')
return self.message.amount
@pennies.setter
def pennies(self, amount: int):
self.message.amount = amount
self.message.currency = FeeMessage.USD
class ClaimReference(Metadata):
__slots__ = ()
@property
def claim_id(self) -> str:
return self.claim_hash[::-1].hex()
@claim_id.setter
def claim_id(self, claim_id: str):
self.claim_hash = bytes.fromhex(claim_id)[::-1]
@property
def claim_hash(self) -> bytes:
return self.message.claim_hash
@claim_hash.setter
def claim_hash(self, claim_hash: bytes):
self.message.claim_hash = claim_hash
class ClaimList(BaseMessageList[ClaimReference]):
__slots__ = ()
item_class = ClaimReference
@property
def _message(self):
return self.message.claim_references
def append(self, value):
self.add().claim_id = value
@property
def ids(self) -> List[str]:
return [c.claim_id for c in self]
class Language(Metadata):
__slots__ = ()
@property
def langtag(self) -> str:
langtag = []
if self.language:
langtag.append(self.language)
if self.script:
langtag.append(self.script)
if self.region:
langtag.append(self.region)
return '-'.join(langtag)
@langtag.setter
def langtag(self, langtag: str):
parts = langtag.split('-')
self.language = parts.pop(0)
if parts and len(parts[0]) == 4:
self.script = parts.pop(0)
if parts and len(parts[0]) == 2 and parts[0].isalpha():
self.region = parts.pop(0)
if parts and len(parts[0]) == 3 and parts[0].isdigit():
self.region = parts.pop(0)
assert not parts, f"Failed to parse language tag: {langtag}"
@property
def language(self) -> str:
if self.message.language:
return LanguageMessage.Language.Name(self.message.language)
@language.setter
def language(self, language: str):
self.message.language = LanguageMessage.Language.Value(language)
@property
def script(self) -> str:
if self.message.script:
return LanguageMessage.Script.Name(self.message.script)
@script.setter
def script(self, script: str):
self.message.script = LanguageMessage.Script.Value(script)
@property
def region(self) -> str:
if self.message.region:
return country_int_to_str(self.message.region)
@region.setter
def region(self, region: str):
self.message.region = country_str_to_int(region)
class LanguageList(BaseMessageList[Language]):
__slots__ = ()
item_class = Language
def append(self, value: str):
self.add().langtag = value
class Location(Metadata):
__slots__ = ()
def from_value(self, value):
if isinstance(value, str) and value.startswith('{'):
value = json.loads(value)
if isinstance(value, dict):
for key, val in value.items():
setattr(self, key, val)
elif isinstance(value, str):
parts = value.split(':')
if len(parts) > 2 or (parts[0] and parts[0][0] in ascii_letters):
country = parts and parts.pop(0)
if country:
self.country = country
state = parts and parts.pop(0)
if state:
self.state = state
city = parts and parts.pop(0)
if city:
self.city = city
code = parts and parts.pop(0)
if code:
self.code = code
latitude = parts and parts.pop(0)
if latitude:
self.latitude = latitude
longitude = parts and parts.pop(0)
if longitude:
self.longitude = longitude
else:
raise ValueError(f'Could not parse country value: {value}')
def to_dict(self):
d = MessageToDict(self.message)
if self.message.longitude:
d['longitude'] = self.longitude
if self.message.latitude:
d['latitude'] = self.latitude
return d
@property
def country(self) -> str:
if self.message.country:
return LocationMessage.Country.Name(self.message.country)
@country.setter
def country(self, country: str):
self.message.country = LocationMessage.Country.Value(country)
@property
def state(self) -> str:
return self.message.state
@state.setter
def state(self, state: str):
self.message.state = state
@property
def city(self) -> str:
return self.message.city
@city.setter
def city(self, city: str):
self.message.city = city
@property
def code(self) -> str:
return self.message.code
@code.setter
def code(self, code: str):
self.message.code = code
GPS_PRECISION = Decimal('10000000')
@property
def latitude(self) -> str:
if self.message.latitude:
return str(Decimal(self.message.latitude) / self.GPS_PRECISION)
@latitude.setter
def latitude(self, latitude: str):
latitude = Decimal(latitude)
assert -90 <= latitude <= 90, "Latitude must be between -90 and 90 degrees."
self.message.latitude = int(latitude * self.GPS_PRECISION)
@property
def longitude(self) -> str:
if self.message.longitude:
return str(Decimal(self.message.longitude) / self.GPS_PRECISION)
@longitude.setter
def longitude(self, longitude: str):
longitude = Decimal(longitude)
assert -180 <= longitude <= 180, "Longitude must be between -180 and 180 degrees."
self.message.longitude = int(longitude * self.GPS_PRECISION)
class LocationList(BaseMessageList[Location]):
__slots__ = ()
item_class = Location
def append(self, value):
self.add().from_value(value)
class TagList(BaseMessageList[str]):
__slots__ = ()
item_class = str
def append(self, tag: str):
tag = normalize_tag(tag)
if tag and tag not in self.message:
self.message.append(tag)

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from binascii import hexlify, unhexlify
from typing import List, Iterator, TypeVar, Generic
from google.protobuf.message import DecodeError
from google.protobuf.json_format import MessageToDict
class Signable:
__slots__ = (
'message', 'version', 'signature',
'signature_type', 'unsigned_payload', 'signing_channel_hash'
)
message_class = None
def __init__(self, message=None):
self.message = message or self.message_class()
self.version = 2
self.signature = None
self.signature_type = 'SECP256k1'
self.unsigned_payload = None
self.signing_channel_hash = None
def clear_signature(self):
self.signature = None
self.unsigned_payload = None
self.signing_channel_hash = None
@property
def signing_channel_id(self):
return hexlify(self.signing_channel_hash[::-1]).decode() if self.signing_channel_hash else None
@signing_channel_id.setter
def signing_channel_id(self, channel_id: str):
self.signing_channel_hash = unhexlify(channel_id)[::-1]
@property
def is_signed(self):
return self.signature is not None
def to_dict(self):
return MessageToDict(self.message)
def to_message_bytes(self) -> bytes:
return self.message.SerializeToString()
def to_bytes(self) -> bytes:
pieces = bytearray()
if self.is_signed:
pieces.append(1)
pieces.extend(self.signing_channel_hash)
pieces.extend(self.signature)
else:
pieces.append(0)
pieces.extend(self.to_message_bytes())
return bytes(pieces)
@classmethod
def from_bytes(cls, data: bytes):
signable = cls()
if data[0] == 0:
signable.message.ParseFromString(data[1:])
elif data[0] == 1:
signable.signing_channel_hash = data[1:21]
signable.signature = data[21:85]
signable.message.ParseFromString(data[85:])
else:
raise DecodeError('Could not determine message format version.')
return signable
def __len__(self):
return len(self.to_bytes())
def __bytes__(self):
return self.to_bytes()
class Metadata:
__slots__ = 'message',
def __init__(self, message):
self.message = message
I = TypeVar('I')
class BaseMessageList(Metadata, Generic[I]):
__slots__ = ()
item_class = None
@property
def _message(self):
return self.message
def add(self) -> I:
return self.item_class(self._message.add())
def extend(self, values: List[str]):
for value in values:
self.append(value)
def append(self, value: str):
raise NotImplemented
def __len__(self):
return len(self._message)
def __iter__(self) -> Iterator[I]:
for item in self._message:
yield self.item_class(item)
def __getitem__(self, item) -> I:
return self.item_class(self._message[item])
def __delitem__(self, key):
del self._message[key]
def __eq__(self, other) -> bool:
return self._message == other

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import logging
from typing import List
from binascii import hexlify, unhexlify
from asn1crypto.keys import PublicKeyInfo
from coincurve import PublicKey as cPublicKey
from google.protobuf.json_format import MessageToDict
from google.protobuf.message import DecodeError
from hachoir.core.log import log as hachoir_log
from hachoir.parser import createParser as binary_file_parser
from hachoir.metadata import extractMetadata as binary_file_metadata
from scribe.schema import compat
from scribe.schema.base import Signable
from scribe.schema.mime_types import guess_media_type, guess_stream_type
from scribe.schema.attrs import (
Source, Playable, Dimmensional, Fee, Image, Video, Audio,
LanguageList, LocationList, ClaimList, ClaimReference, TagList
)
from scribe.schema.types.v2.claim_pb2 import Claim as ClaimMessage
from scribe.error import InputValueIsNoneError
hachoir_log.use_print = False
log = logging.getLogger(__name__)
class Claim(Signable):
STREAM = 'stream'
CHANNEL = 'channel'
COLLECTION = 'collection'
REPOST = 'repost'
__slots__ = ()
message_class = ClaimMessage
@property
def claim_type(self) -> str:
return self.message.WhichOneof('type')
def get_message(self, type_name):
message = getattr(self.message, type_name)
if self.claim_type is None:
message.SetInParent()
if self.claim_type != type_name:
raise ValueError(f'Claim is not a {type_name}.')
return message
@property
def is_stream(self):
return self.claim_type == self.STREAM
@property
def stream(self) -> 'Stream':
return Stream(self)
@property
def is_channel(self):
return self.claim_type == self.CHANNEL
@property
def channel(self) -> 'Channel':
return Channel(self)
@property
def is_repost(self):
return self.claim_type == self.REPOST
@property
def repost(self) -> 'Repost':
return Repost(self)
@property
def is_collection(self):
return self.claim_type == self.COLLECTION
@property
def collection(self) -> 'Collection':
return Collection(self)
@classmethod
def from_bytes(cls, data: bytes) -> 'Claim':
try:
return super().from_bytes(data)
except DecodeError:
claim = cls()
if data[0] == ord('{'):
claim.version = 0
compat.from_old_json_schema(claim, data)
elif data[0] not in (0, 1):
claim.version = 1
compat.from_types_v1(claim, data)
else:
raise
return claim
class BaseClaim:
__slots__ = 'claim', 'message'
claim_type = None
object_fields = 'thumbnail',
repeat_fields = 'tags', 'languages', 'locations'
def __init__(self, claim: Claim = None):
self.claim = claim or Claim()
self.message = self.claim.get_message(self.claim_type)
def to_dict(self):
claim = MessageToDict(self.claim.message, preserving_proto_field_name=True)
claim.update(claim.pop(self.claim_type))
if 'languages' in claim:
claim['languages'] = self.langtags
if 'locations' in claim:
claim['locations'] = [l.to_dict() for l in self.locations]
return claim
def none_check(self, kwargs):
for key, value in kwargs.items():
if value is None:
raise InputValueIsNoneError(key)
def update(self, **kwargs):
self.none_check(kwargs)
for key in list(kwargs):
for field in self.object_fields:
if key.startswith(f'{field}_'):
attr = getattr(self, field)
setattr(attr, key[len(f'{field}_'):], kwargs.pop(key))
continue
for l in self.repeat_fields:
field = getattr(self, l)
if kwargs.pop(f'clear_{l}', False):
del field[:]
items = kwargs.pop(l, None)
if items is not None:
if isinstance(items, str):
field.append(items)
elif isinstance(items, list):
field.extend(items)
else:
raise ValueError(f"Unknown {l} value: {items}")
for key, value in kwargs.items():
setattr(self, key, value)
@property
def title(self) -> str:
return self.claim.message.title
@title.setter
def title(self, title: str):
self.claim.message.title = title
@property
def description(self) -> str:
return self.claim.message.description
@description.setter
def description(self, description: str):
self.claim.message.description = description
@property
def thumbnail(self) -> Source:
return Source(self.claim.message.thumbnail)
@property
def tags(self) -> List[str]:
return TagList(self.claim.message.tags)
@property
def languages(self) -> LanguageList:
return LanguageList(self.claim.message.languages)
@property
def langtags(self) -> List[str]:
return [l.langtag for l in self.languages]
@property
def locations(self) -> LocationList:
return LocationList(self.claim.message.locations)
class Stream(BaseClaim):
__slots__ = ()
claim_type = Claim.STREAM
object_fields = BaseClaim.object_fields + ('source',)
def to_dict(self):
claim = super().to_dict()
if 'source' in claim:
if 'hash' in claim['source']:
claim['source']['hash'] = self.source.file_hash
if 'sd_hash' in claim['source']:
claim['source']['sd_hash'] = self.source.sd_hash
elif 'bt_infohash' in claim['source']:
claim['source']['bt_infohash'] = self.source.bt_infohash
if 'media_type' in claim['source']:
claim['stream_type'] = guess_stream_type(claim['source']['media_type'])
fee = claim.get('fee', {})
if 'address' in fee:
fee['address'] = self.fee.address
if 'amount' in fee:
fee['amount'] = str(self.fee.amount)
return claim
def update(self, file_path=None, height=None, width=None, duration=None, **kwargs):
if kwargs.pop('clear_fee', False):
self.message.ClearField('fee')
else:
self.fee.update(
kwargs.pop('fee_address', None),
kwargs.pop('fee_currency', None),
kwargs.pop('fee_amount', None)
)
self.none_check(kwargs)
if 'sd_hash' in kwargs:
self.source.sd_hash = kwargs.pop('sd_hash')
elif 'bt_infohash' in kwargs:
self.source.bt_infohash = kwargs.pop('bt_infohash')
if 'file_name' in kwargs:
self.source.name = kwargs.pop('file_name')
if 'file_hash' in kwargs:
self.source.file_hash = kwargs.pop('file_hash')
stream_type = None
if file_path is not None:
stream_type = self.source.update(file_path=file_path)
elif self.source.name:
self.source.media_type, stream_type = guess_media_type(self.source.name)
elif self.source.media_type:
stream_type = guess_stream_type(self.source.media_type)
if 'file_size' in kwargs:
self.source.size = kwargs.pop('file_size')
if self.stream_type is not None and self.stream_type != stream_type:
self.message.ClearField(self.stream_type)
if stream_type in ('image', 'video', 'audio'):
media = getattr(self, stream_type)
media_args = {'file_metadata': None}
if file_path is not None and not all((duration, width, height)):
try:
media_args['file_metadata'] = binary_file_metadata(binary_file_parser(file_path))
except:
log.exception('Could not read file metadata.')
if isinstance(media, Playable):
media_args['duration'] = duration
if isinstance(media, Dimmensional):
media_args['height'] = height
media_args['width'] = width
media.update(**media_args)
super().update(**kwargs)
@property
def author(self) -> str:
return self.message.author
@author.setter
def author(self, author: str):
self.message.author = author
@property
def license(self) -> str:
return self.message.license
@license.setter
def license(self, license: str):
self.message.license = license
@property
def license_url(self) -> str:
return self.message.license_url
@license_url.setter
def license_url(self, license_url: str):
self.message.license_url = license_url
@property
def release_time(self) -> int:
return self.message.release_time
@release_time.setter
def release_time(self, release_time: int):
self.message.release_time = release_time
@property
def fee(self) -> Fee:
return Fee(self.message.fee)
@property
def has_fee(self) -> bool:
return self.message.HasField('fee')
@property
def has_source(self) -> bool:
return self.message.HasField('source')
@property
def source(self) -> Source:
return Source(self.message.source)
@property
def stream_type(self) -> str:
return self.message.WhichOneof('type')
@property
def image(self) -> Image:
return Image(self.message.image)
@property
def video(self) -> Video:
return Video(self.message.video)
@property
def audio(self) -> Audio:
return Audio(self.message.audio)
class Channel(BaseClaim):
__slots__ = ()
claim_type = Claim.CHANNEL
object_fields = BaseClaim.object_fields + ('cover',)
repeat_fields = BaseClaim.repeat_fields + ('featured',)
def to_dict(self):
claim = super().to_dict()
claim['public_key'] = self.public_key
if 'featured' in claim:
claim['featured'] = self.featured.ids
return claim
@property
def public_key(self) -> str:
return hexlify(self.public_key_bytes).decode()
@public_key.setter
def public_key(self, sd_public_key: str):
self.message.public_key = unhexlify(sd_public_key.encode())
@property
def public_key_bytes(self) -> bytes:
if len(self.message.public_key) == 33:
return self.message.public_key
public_key_info = PublicKeyInfo.load(self.message.public_key)
public_key = cPublicKey(public_key_info.native['public_key'])
return public_key.format(compressed=True)
@public_key_bytes.setter
def public_key_bytes(self, public_key: bytes):
self.message.public_key = public_key
@property
def email(self) -> str:
return self.message.email
@email.setter
def email(self, email: str):
self.message.email = email
@property
def website_url(self) -> str:
return self.message.website_url
@website_url.setter
def website_url(self, website_url: str):
self.message.website_url = website_url
@property
def cover(self) -> Source:
return Source(self.message.cover)
@property
def featured(self) -> ClaimList:
return ClaimList(self.message.featured)
class Repost(BaseClaim):
__slots__ = ()
claim_type = Claim.REPOST
@property
def reference(self) -> ClaimReference:
return ClaimReference(self.message)
class Collection(BaseClaim):
__slots__ = ()
claim_type = Claim.COLLECTION
repeat_fields = BaseClaim.repeat_fields + ('claims',)
def to_dict(self):
claim = super().to_dict()
if claim.pop('claim_references', None):
claim['claims'] = self.claims.ids
return claim
@property
def claims(self) -> ClaimList:
return ClaimList(self.message)

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import json
from decimal import Decimal
from google.protobuf.message import DecodeError
from scribe.schema.types.v1.legacy_claim_pb2 import Claim as OldClaimMessage
from scribe.schema.types.v1.certificate_pb2 import KeyType
from scribe.schema.types.v1.fee_pb2 import Fee as FeeMessage
def from_old_json_schema(claim, payload: bytes):
try:
value = json.loads(payload)
except:
raise DecodeError('Could not parse JSON.')
stream = claim.stream
stream.source.sd_hash = value['sources']['lbry_sd_hash']
stream.source.media_type = (
value.get('content_type', value.get('content-type')) or
'application/octet-stream'
)
stream.title = value.get('title', '')
stream.description = value.get('description', '')
if value.get('thumbnail', ''):
stream.thumbnail.url = value.get('thumbnail', '')
stream.author = value.get('author', '')
stream.license = value.get('license', '')
stream.license_url = value.get('license_url', '')
language = value.get('language', '')
if language:
if language.lower() == 'english':
language = 'en'
try:
stream.languages.append(language)
except:
pass
if value.get('nsfw', False):
stream.tags.append('mature')
if "fee" in value and isinstance(value['fee'], dict):
fee = value["fee"]
currency = list(fee.keys())[0]
if currency == 'LBC':
stream.fee.lbc = Decimal(fee[currency]['amount'])
elif currency == 'USD':
stream.fee.usd = Decimal(fee[currency]['amount'])
elif currency == 'BTC':
stream.fee.btc = Decimal(fee[currency]['amount'])
else:
raise DecodeError(f'Unknown currency: {currency}')
stream.fee.address = fee[currency]['address']
return claim
def from_types_v1(claim, payload: bytes):
old = OldClaimMessage()
old.ParseFromString(payload)
if old.claimType == 2:
channel = claim.channel
channel.public_key_bytes = old.certificate.publicKey
else:
stream = claim.stream
stream.title = old.stream.metadata.title
stream.description = old.stream.metadata.description
stream.author = old.stream.metadata.author
stream.license = old.stream.metadata.license
stream.license_url = old.stream.metadata.licenseUrl
stream.thumbnail.url = old.stream.metadata.thumbnail
if old.stream.metadata.HasField('language'):
stream.languages.add().message.language = old.stream.metadata.language
stream.source.media_type = old.stream.source.contentType
stream.source.sd_hash_bytes = old.stream.source.source
if old.stream.metadata.nsfw:
stream.tags.append('mature')
if old.stream.metadata.HasField('fee'):
fee = old.stream.metadata.fee
stream.fee.address_bytes = fee.address
currency = FeeMessage.Currency.Name(fee.currency)
if currency == 'LBC':
stream.fee.lbc = Decimal(fee.amount)
elif currency == 'USD':
stream.fee.usd = Decimal(fee.amount)
elif currency == 'BTC':
stream.fee.btc = Decimal(fee.amount)
else:
raise DecodeError(f'Unsupported currency: {currency}')
if old.HasField('publisherSignature'):
sig = old.publisherSignature
claim.signature = sig.signature
claim.signature_type = KeyType.Name(sig.signatureType)
claim.signing_channel_hash = sig.certificateId[::-1]
old.ClearField("publisherSignature")
claim.unsigned_payload = old.SerializeToString()
return claim

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import os
import filetype
import logging
types_map = {
# http://www.iana.org/assignments/media-types
# Type mapping for automated metadata extraction (video, audio, image, document, binary, model)
'.a': ('application/octet-stream', 'binary'),
'.ai': ('application/postscript', 'image'),
'.aif': ('audio/x-aiff', 'audio'),
'.aifc': ('audio/x-aiff', 'audio'),
'.aiff': ('audio/x-aiff', 'audio'),
'.au': ('audio/basic', 'audio'),
'.avi': ('video/x-msvideo', 'video'),
'.bat': ('text/plain', 'document'),
'.bcpio': ('application/x-bcpio', 'binary'),
'.bin': ('application/octet-stream', 'binary'),
'.bmp': ('image/bmp', 'image'),
'.c': ('text/plain', 'document'),
'.cdf': ('application/x-netcdf', 'binary'),
'.cpio': ('application/x-cpio', 'binary'),
'.csh': ('application/x-csh', 'binary'),
'.css': ('text/css', 'document'),
'.csv': ('text/csv', 'document'),
'.dll': ('application/octet-stream', 'binary'),
'.doc': ('application/msword', 'document'),
'.dot': ('application/msword', 'document'),
'.dvi': ('application/x-dvi', 'binary'),
'.eml': ('message/rfc822', 'document'),
'.eps': ('application/postscript', 'document'),
'.epub': ('application/epub+zip', 'document'),
'.etx': ('text/x-setext', 'document'),
'.exe': ('application/octet-stream', 'binary'),
'.gif': ('image/gif', 'image'),
'.gtar': ('application/x-gtar', 'binary'),
'.h': ('text/plain', 'document'),
'.hdf': ('application/x-hdf', 'binary'),
'.htm': ('text/html', 'document'),
'.html': ('text/html', 'document'),
'.ico': ('image/vnd.microsoft.icon', 'image'),
'.ief': ('image/ief', 'image'),
'.iges': ('model/iges', 'model'),
'.jpe': ('image/jpeg', 'image'),
'.jpeg': ('image/jpeg', 'image'),
'.jpg': ('image/jpeg', 'image'),
'.js': ('application/javascript', 'document'),
'.json': ('application/json', 'document'),
'.ksh': ('text/plain', 'document'),
'.latex': ('application/x-latex', 'binary'),
'.m1v': ('video/mpeg', 'video'),
'.m3u': ('application/x-mpegurl', 'audio'),
'.m3u8': ('application/x-mpegurl', 'video'),
'.man': ('application/x-troff-man', 'document'),
'.markdown': ('text/markdown', 'document'),
'.md': ('text/markdown', 'document'),
'.me': ('application/x-troff-me', 'binary'),
'.mht': ('message/rfc822', 'document'),
'.mhtml': ('message/rfc822', 'document'),
'.mif': ('application/x-mif', 'binary'),
'.mov': ('video/quicktime', 'video'),
'.movie': ('video/x-sgi-movie', 'video'),
'.mp2': ('audio/mpeg', 'audio'),
'.mp3': ('audio/mpeg', 'audio'),
'.mp4': ('video/mp4', 'video'),
'.mpa': ('video/mpeg', 'video'),
'.mpd': ('application/dash+xml', 'video'),
'.mpe': ('video/mpeg', 'video'),
'.mpeg': ('video/mpeg', 'video'),
'.mpg': ('video/mpeg', 'video'),
'.ms': ('application/x-troff-ms', 'binary'),
'.m4s': ('video/iso.segment', 'binary'),
'.nc': ('application/x-netcdf', 'binary'),
'.nws': ('message/rfc822', 'document'),
'.o': ('application/octet-stream', 'binary'),
'.obj': ('application/octet-stream', 'model'),
'.oda': ('application/oda', 'binary'),
'.p12': ('application/x-pkcs12', 'binary'),
'.p7c': ('application/pkcs7-mime', 'binary'),
'.pbm': ('image/x-portable-bitmap', 'image'),
'.pdf': ('application/pdf', 'document'),
'.pfx': ('application/x-pkcs12', 'binary'),
'.pgm': ('image/x-portable-graymap', 'image'),
'.pl': ('text/plain', 'document'),
'.png': ('image/png', 'image'),
'.pnm': ('image/x-portable-anymap', 'image'),
'.pot': ('application/vnd.ms-powerpoint', 'document'),
'.ppa': ('application/vnd.ms-powerpoint', 'document'),
'.ppm': ('image/x-portable-pixmap', 'image'),
'.pps': ('application/vnd.ms-powerpoint', 'document'),
'.ppt': ('application/vnd.ms-powerpoint', 'document'),
'.ps': ('application/postscript', 'document'),
'.pwz': ('application/vnd.ms-powerpoint', 'document'),
'.py': ('text/x-python', 'document'),
'.pyc': ('application/x-python-code', 'binary'),
'.pyo': ('application/x-python-code', 'binary'),
'.qt': ('video/quicktime', 'video'),
'.ra': ('audio/x-pn-realaudio', 'audio'),
'.ram': ('application/x-pn-realaudio', 'audio'),
'.ras': ('image/x-cmu-raster', 'image'),
'.rdf': ('application/xml', 'binary'),
'.rgb': ('image/x-rgb', 'image'),
'.roff': ('application/x-troff', 'binary'),
'.rtx': ('text/richtext', 'document'),
'.sgm': ('text/x-sgml', 'document'),
'.sgml': ('text/x-sgml', 'document'),
'.sh': ('application/x-sh', 'document'),
'.shar': ('application/x-shar', 'binary'),
'.snd': ('audio/basic', 'audio'),
'.so': ('application/octet-stream', 'binary'),
'.src': ('application/x-wais-source', 'binary'),
'.stl': ('model/stl', 'model'),
'.sv4cpio': ('application/x-sv4cpio', 'binary'),
'.sv4crc': ('application/x-sv4crc', 'binary'),
'.svg': ('image/svg+xml', 'image'),
'.swf': ('application/x-shockwave-flash', 'binary'),
'.t': ('application/x-troff', 'binary'),
'.tar': ('application/x-tar', 'binary'),
'.tcl': ('application/x-tcl', 'binary'),
'.tex': ('application/x-tex', 'binary'),
'.texi': ('application/x-texinfo', 'binary'),
'.texinfo': ('application/x-texinfo', 'binary'),
'.tif': ('image/tiff', 'image'),
'.tiff': ('image/tiff', 'image'),
'.tr': ('application/x-troff', 'binary'),
'.ts': ('video/mp2t', 'video'),
'.tsv': ('text/tab-separated-values', 'document'),
'.txt': ('text/plain', 'document'),
'.ustar': ('application/x-ustar', 'binary'),
'.vcf': ('text/x-vcard', 'document'),
'.vtt': ('text/vtt', 'document'),
'.wav': ('audio/x-wav', 'audio'),
'.webm': ('video/webm', 'video'),
'.wiz': ('application/msword', 'document'),
'.wsdl': ('application/xml', 'document'),
'.xbm': ('image/x-xbitmap', 'image'),
'.xlb': ('application/vnd.ms-excel', 'document'),
'.xls': ('application/vnd.ms-excel', 'document'),
'.xml': ('text/xml', 'document'),
'.xpdl': ('application/xml', 'document'),
'.xpm': ('image/x-xpixmap', 'image'),
'.xsl': ('application/xml', 'document'),
'.xwd': ('image/x-xwindowdump', 'image'),
'.zip': ('application/zip', 'binary'),
# These are non-standard types, commonly found in the wild.
'.cbr': ('application/vnd.comicbook-rar', 'document'),
'.cbz': ('application/vnd.comicbook+zip', 'document'),
'.flac': ('audio/flac', 'audio'),
'.lbry': ('application/x-ext-lbry', 'document'),
'.m4a': ('audio/mp4', 'audio'),
'.m4v': ('video/m4v', 'video'),
'.mid': ('audio/midi', 'audio'),
'.midi': ('audio/midi', 'audio'),
'.mkv': ('video/x-matroska', 'video'),
'.mobi': ('application/x-mobipocket-ebook', 'document'),
'.oga': ('audio/ogg', 'audio'),
'.ogv': ('video/ogg', 'video'),
'.ogg': ('video/ogg', 'video'),
'.pct': ('image/pict', 'image'),
'.pic': ('image/pict', 'image'),
'.pict': ('image/pict', 'image'),
'.prc': ('application/x-mobipocket-ebook', 'document'),
'.rtf': ('application/rtf', 'document'),
'.xul': ('text/xul', 'document'),
# microsoft is special and has its own 'standard'
# https://docs.microsoft.com/en-us/windows/desktop/wmp/file-name-extensions
'.wmv': ('video/x-ms-wmv', 'video')
}
# maps detected extensions to the possible analogs
# i.e. .cbz file is actually a .zip
synonyms_map = {
'.zip': ['.cbz'],
'.rar': ['.cbr'],
'.ar': ['.a']
}
log = logging.getLogger(__name__)
def guess_media_type(path):
_, ext = os.path.splitext(path)
extension = ext.strip().lower()
try:
kind = filetype.guess(path)
if kind:
real_extension = f".{kind.extension}"
if extension != real_extension:
if extension:
log.warning(f"file extension does not match it's contents: {path}, identified as {real_extension}")
else:
log.debug(f"file {path} does not have extension, identified by it's contents as {real_extension}")
if extension not in synonyms_map.get(real_extension, []):
extension = real_extension
except OSError as error:
pass
if extension[1:]:
if extension in types_map:
return types_map[extension]
return f'application/x-ext-{extension[1:]}', 'binary'
return 'application/octet-stream', 'binary'
def guess_stream_type(media_type):
for media, stream in types_map.values():
if media == media_type:
return stream
return 'binary'

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from google.protobuf.message import DecodeError
from google.protobuf.json_format import MessageToDict
from scribe.schema.types.v2.purchase_pb2 import Purchase as PurchaseMessage
from .attrs import ClaimReference
class Purchase(ClaimReference):
START_BYTE = ord('P')
__slots__ = ()
def __init__(self, claim_id=None):
super().__init__(PurchaseMessage())
if claim_id is not None:
self.claim_id = claim_id
def to_dict(self):
return MessageToDict(self.message)
def to_message_bytes(self) -> bytes:
return self.message.SerializeToString()
def to_bytes(self) -> bytes:
pieces = bytearray()
pieces.append(self.START_BYTE)
pieces.extend(self.to_message_bytes())
return bytes(pieces)
@classmethod
def has_start_byte(cls, data: bytes):
return data and data[0] == cls.START_BYTE
@classmethod
def from_bytes(cls, data: bytes):
purchase = cls()
if purchase.has_start_byte(data):
purchase.message.ParseFromString(data[1:])
else:
raise DecodeError('Message does not start with correct byte.')
return purchase
def __len__(self):
return len(self.to_bytes())
def __bytes__(self):
return self.to_bytes()

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import base64
from typing import List, TYPE_CHECKING, Union, Optional, NamedTuple
from binascii import hexlify
from itertools import chain
from scribe.error import ResolveCensoredError
from scribe.schema.types.v2.result_pb2 import Outputs as OutputsMessage
from scribe.schema.types.v2.result_pb2 import Error as ErrorMessage
# if TYPE_CHECKING:
# from lbry_schema.schema.claim import ResolveResult
INVALID = ErrorMessage.Code.Name(ErrorMessage.INVALID)
NOT_FOUND = ErrorMessage.Code.Name(ErrorMessage.NOT_FOUND)
BLOCKED = ErrorMessage.Code.Name(ErrorMessage.BLOCKED)
def set_reference(reference, claim_hash, rows):
if claim_hash:
for txo in rows:
if claim_hash == txo.claim_hash:
reference.tx_hash = txo.tx_hash
reference.nout = txo.position
reference.height = txo.height
return
class Censor:
NOT_CENSORED = 0
SEARCH = 1
RESOLVE = 2
__slots__ = 'censor_type', 'censored'
def __init__(self, censor_type):
self.censor_type = censor_type
self.censored = {}
def is_censored(self, row):
return (row.get('censor_type') or self.NOT_CENSORED) >= self.censor_type
def apply(self, rows):
return [row for row in rows if not self.censor(row)]
def censor(self, row) -> Optional[bytes]:
if self.is_censored(row):
censoring_channel_hash = bytes.fromhex(row['censoring_channel_id'])[::-1]
self.censored.setdefault(censoring_channel_hash, set())
self.censored[censoring_channel_hash].add(row['tx_hash'])
return censoring_channel_hash
return None
def to_message(self, outputs: OutputsMessage, extra_txo_rows: dict):
for censoring_channel_hash, count in self.censored.items():
blocked = outputs.blocked.add()
blocked.count = len(count)
set_reference(blocked.channel, censoring_channel_hash, extra_txo_rows)
outputs.blocked_total += len(count)
class ResolveResult(NamedTuple):
name: str
normalized_name: str
claim_hash: bytes
tx_num: int
position: int
tx_hash: bytes
height: int
amount: int
short_url: str
is_controlling: bool
canonical_url: str
creation_height: int
activation_height: int
expiration_height: int
effective_amount: int
support_amount: int
reposted: int
last_takeover_height: Optional[int]
claims_in_channel: Optional[int]
channel_hash: Optional[bytes]
reposted_claim_hash: Optional[bytes]
signature_valid: Optional[bool]
class Outputs:
__slots__ = 'txos', 'extra_txos', 'txs', 'offset', 'total', 'blocked', 'blocked_total'
def __init__(self, txos: List, extra_txos: List, txs: set,
offset: int, total: int, blocked: List, blocked_total: int):
self.txos = txos
self.txs = txs
self.extra_txos = extra_txos
self.offset = offset
self.total = total
self.blocked = blocked
self.blocked_total = blocked_total
def inflate(self, txs):
tx_map = {tx.hash: tx for tx in txs}
for txo_message in self.extra_txos:
self.message_to_txo(txo_message, tx_map)
txos = [self.message_to_txo(txo_message, tx_map) for txo_message in self.txos]
return txos, self.inflate_blocked(tx_map)
def inflate_blocked(self, tx_map):
return {
"total": self.blocked_total,
"channels": [{
'channel': self.message_to_txo(blocked.channel, tx_map),
'blocked': blocked.count
} for blocked in self.blocked]
}
def message_to_txo(self, txo_message, tx_map):
if txo_message.WhichOneof('meta') == 'error':
error = {
'error': {
'name': txo_message.error.Code.Name(txo_message.error.code),
'text': txo_message.error.text,
}
}
if error['error']['name'] == BLOCKED:
error['error']['censor'] = self.message_to_txo(
txo_message.error.blocked.channel, tx_map
)
return error
tx = tx_map.get(txo_message.tx_hash)
if not tx:
return
txo = tx.outputs[txo_message.nout]
if txo_message.WhichOneof('meta') == 'claim':
claim = txo_message.claim
txo.meta = {
'short_url': f'lbry://{claim.short_url}',
'canonical_url': f'lbry://{claim.canonical_url or claim.short_url}',
'reposted': claim.reposted,
'is_controlling': claim.is_controlling,
'take_over_height': claim.take_over_height,
'creation_height': claim.creation_height,
'activation_height': claim.activation_height,
'expiration_height': claim.expiration_height,
'effective_amount': claim.effective_amount,
'support_amount': claim.support_amount,
# 'trending_group': claim.trending_group,
# 'trending_mixed': claim.trending_mixed,
# 'trending_local': claim.trending_local,
# 'trending_global': claim.trending_global,
}
if claim.HasField('channel'):
txo.channel = tx_map[claim.channel.tx_hash].outputs[claim.channel.nout]
if claim.HasField('repost'):
txo.reposted_claim = tx_map[claim.repost.tx_hash].outputs[claim.repost.nout]
try:
if txo.claim.is_channel:
txo.meta['claims_in_channel'] = claim.claims_in_channel
except:
pass
return txo
@classmethod
def from_base64(cls, data: str) -> 'Outputs':
return cls.from_bytes(base64.b64decode(data))
@classmethod
def from_bytes(cls, data: bytes) -> 'Outputs':
outputs = OutputsMessage()
outputs.ParseFromString(data)
txs = set()
for txo_message in chain(outputs.txos, outputs.extra_txos):
if txo_message.WhichOneof('meta') == 'error':
continue
txs.add((hexlify(txo_message.tx_hash[::-1]).decode(), txo_message.height))
return cls(
outputs.txos, outputs.extra_txos, txs,
outputs.offset, outputs.total,
outputs.blocked, outputs.blocked_total
)
@classmethod
def from_grpc(cls, outputs: OutputsMessage) -> 'Outputs':
txs = set()
for txo_message in chain(outputs.txos, outputs.extra_txos):
if txo_message.WhichOneof('meta') == 'error':
continue
txs.add((hexlify(txo_message.tx_hash[::-1]).decode(), txo_message.height))
return cls(
outputs.txos, outputs.extra_txos, txs,
outputs.offset, outputs.total,
outputs.blocked, outputs.blocked_total
)
@classmethod
def to_base64(cls, txo_rows, extra_txo_rows, offset=0, total=None, blocked=None) -> str:
return base64.b64encode(cls.to_bytes(txo_rows, extra_txo_rows, offset, total, blocked)).decode()
@classmethod
def to_bytes(cls, txo_rows, extra_txo_rows, offset=0, total=None, blocked: Censor = None) -> bytes:
page = OutputsMessage()
page.offset = offset
if total is not None:
page.total = total
if blocked is not None:
blocked.to_message(page, extra_txo_rows)
for row in extra_txo_rows:
txo_message: 'OutputsMessage' = page.extra_txos.add()
if not isinstance(row, Exception):
if row.channel_hash:
set_reference(txo_message.claim.channel, row.channel_hash, extra_txo_rows)
if row.reposted_claim_hash:
set_reference(txo_message.claim.repost, row.reposted_claim_hash, extra_txo_rows)
cls.encode_txo(txo_message, row)
for row in txo_rows:
# cls.row_to_message(row, page.txos.add(), extra_txo_rows)
txo_message: 'OutputsMessage' = page.txos.add()
cls.encode_txo(txo_message, row)
if not isinstance(row, Exception):
if row.channel_hash:
set_reference(txo_message.claim.channel, row.channel_hash, extra_txo_rows)
if row.reposted_claim_hash:
set_reference(txo_message.claim.repost, row.reposted_claim_hash, extra_txo_rows)
elif isinstance(row, ResolveCensoredError):
set_reference(txo_message.error.blocked.channel, row.censor_id, extra_txo_rows)
return page.SerializeToString()
@classmethod
def encode_txo(cls, txo_message, resolve_result: Union[ResolveResult, Exception]):
if isinstance(resolve_result, Exception):
txo_message.error.text = resolve_result.args[0]
if isinstance(resolve_result, ValueError):
txo_message.error.code = ErrorMessage.INVALID
elif isinstance(resolve_result, LookupError):
txo_message.error.code = ErrorMessage.NOT_FOUND
elif isinstance(resolve_result, ResolveCensoredError):
txo_message.error.code = ErrorMessage.BLOCKED
return
txo_message.tx_hash = resolve_result.tx_hash
txo_message.nout = resolve_result.position
txo_message.height = resolve_result.height
txo_message.claim.short_url = resolve_result.short_url
txo_message.claim.reposted = resolve_result.reposted
txo_message.claim.is_controlling = resolve_result.is_controlling
txo_message.claim.creation_height = resolve_result.creation_height
txo_message.claim.activation_height = resolve_result.activation_height
txo_message.claim.expiration_height = resolve_result.expiration_height
txo_message.claim.effective_amount = resolve_result.effective_amount
txo_message.claim.support_amount = resolve_result.support_amount
if resolve_result.canonical_url is not None:
txo_message.claim.canonical_url = resolve_result.canonical_url
if resolve_result.last_takeover_height is not None:
txo_message.claim.take_over_height = resolve_result.last_takeover_height
if resolve_result.claims_in_channel is not None:
txo_message.claim.claims_in_channel = resolve_result.claims_in_channel

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from scribe.schema.base import Signable
from scribe.schema.types.v2.support_pb2 import Support as SupportMessage
class Support(Signable):
__slots__ = ()
message_class = SupportMessage
@property
def emoji(self) -> str:
return self.message.emoji
@emoji.setter
def emoji(self, emoji: str):
self.message.emoji = emoji
@property
def comment(self) -> str:
return self.message.comment
@comment.setter
def comment(self, comment: str):
self.message.comment = comment

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from typing import List
import re
MULTI_SPACE_RE = re.compile(r"\s{2,}")
WEIRD_CHARS_RE = re.compile(r"[#!~]")
def normalize_tag(tag: str):
return MULTI_SPACE_RE.sub(' ', WEIRD_CHARS_RE.sub(' ', tag.lower().replace("'", ""))).strip()
def clean_tags(tags: List[str]):
return [tag for tag in {normalize_tag(tag) for tag in tags} if tag]

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scribe/schema/types/__init__.py Normal file
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scribe/schema/types/v1/__init__.py Normal file
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146
scribe/schema/types/v1/certificate_pb2.py Normal file
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# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: certificate.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf.internal import enum_type_wrapper
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='certificate.proto',
package='legacy_pb',
syntax='proto2',
serialized_options=None,
serialized_pb=_b('\n\x11\x63\x65rtificate.proto\x12\tlegacy_pb\"\xa2\x01\n\x0b\x43\x65rtificate\x12/\n\x07version\x18\x01 \x02(\x0e\x32\x1e.legacy_pb.Certificate.Version\x12#\n\x07keyType\x18\x02 \x02(\x0e\x32\x12.legacy_pb.KeyType\x12\x11\n\tpublicKey\x18\x04 \x02(\x0c\"*\n\x07Version\x12\x13\n\x0fUNKNOWN_VERSION\x10\x00\x12\n\n\x06_0_0_1\x10\x01*Q\n\x07KeyType\x12\x1b\n\x17UNKNOWN_PUBLIC_KEY_TYPE\x10\x00\x12\x0c\n\x08NIST256p\x10\x01\x12\x0c\n\x08NIST384p\x10\x02\x12\r\n\tSECP256k1\x10\x03')
)
_KEYTYPE = _descriptor.EnumDescriptor(
name='KeyType',
full_name='legacy_pb.KeyType',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_PUBLIC_KEY_TYPE', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='NIST256p', index=1, number=1,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='NIST384p', index=2, number=2,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='SECP256k1', index=3, number=3,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=197,
serialized_end=278,
)
_sym_db.RegisterEnumDescriptor(_KEYTYPE)
KeyType = enum_type_wrapper.EnumTypeWrapper(_KEYTYPE)
UNKNOWN_PUBLIC_KEY_TYPE = 0
NIST256p = 1
NIST384p = 2
SECP256k1 = 3
_CERTIFICATE_VERSION = _descriptor.EnumDescriptor(
name='Version',
full_name='legacy_pb.Certificate.Version',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_VERSION', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='_0_0_1', index=1, number=1,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=153,
serialized_end=195,
)
_sym_db.RegisterEnumDescriptor(_CERTIFICATE_VERSION)
_CERTIFICATE = _descriptor.Descriptor(
name='Certificate',
full_name='legacy_pb.Certificate',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='version', full_name='legacy_pb.Certificate.version', index=0,
number=1, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='keyType', full_name='legacy_pb.Certificate.keyType', index=1,
number=2, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='publicKey', full_name='legacy_pb.Certificate.publicKey', index=2,
number=4, type=12, cpp_type=9, label=2,
has_default_value=False, default_value=_b(""),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
],
extensions=[
],
nested_types=[],
enum_types=[
_CERTIFICATE_VERSION,
],
serialized_options=None,
is_extendable=False,
syntax='proto2',
extension_ranges=[],
oneofs=[
],
serialized_start=33,
serialized_end=195,
)
_CERTIFICATE.fields_by_name['version'].enum_type = _CERTIFICATE_VERSION
_CERTIFICATE.fields_by_name['keyType'].enum_type = _KEYTYPE
_CERTIFICATE_VERSION.containing_type = _CERTIFICATE
DESCRIPTOR.message_types_by_name['Certificate'] = _CERTIFICATE
DESCRIPTOR.enum_types_by_name['KeyType'] = _KEYTYPE
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
Certificate = _reflection.GeneratedProtocolMessageType('Certificate', (_message.Message,), dict(
DESCRIPTOR = _CERTIFICATE,
__module__ = 'certificate_pb2'
# @@protoc_insertion_point(class_scope:legacy_pb.Certificate)
))
_sym_db.RegisterMessage(Certificate)
# @@protoc_insertion_point(module_scope)

148
scribe/schema/types/v1/fee_pb2.py Normal file
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@ -0,0 +1,148 @@
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: fee.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='fee.proto',
package='legacy_pb',
syntax='proto2',
serialized_options=None,
serialized_pb=_b('\n\tfee.proto\x12\tlegacy_pb\"\xe3\x01\n\x03\x46\x65\x65\x12\'\n\x07version\x18\x01 \x02(\x0e\x32\x16.legacy_pb.Fee.Version\x12)\n\x08\x63urrency\x18\x02 \x02(\x0e\x32\x17.legacy_pb.Fee.Currency\x12\x0f\n\x07\x61\x64\x64ress\x18\x03 \x02(\x0c\x12\x0e\n\x06\x61mount\x18\x04 \x02(\x02\"*\n\x07Version\x12\x13\n\x0fUNKNOWN_VERSION\x10\x00\x12\n\n\x06_0_0_1\x10\x01\";\n\x08\x43urrency\x12\x14\n\x10UNKNOWN_CURRENCY\x10\x00\x12\x07\n\x03LBC\x10\x01\x12\x07\n\x03\x42TC\x10\x02\x12\x07\n\x03USD\x10\x03')
)
_FEE_VERSION = _descriptor.EnumDescriptor(
name='Version',
full_name='legacy_pb.Fee.Version',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_VERSION', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='_0_0_1', index=1, number=1,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=149,
serialized_end=191,
)
_sym_db.RegisterEnumDescriptor(_FEE_VERSION)
_FEE_CURRENCY = _descriptor.EnumDescriptor(
name='Currency',
full_name='legacy_pb.Fee.Currency',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_CURRENCY', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='LBC', index=1, number=1,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='BTC', index=2, number=2,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='USD', index=3, number=3,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=193,
serialized_end=252,
)
_sym_db.RegisterEnumDescriptor(_FEE_CURRENCY)
_FEE = _descriptor.Descriptor(
name='Fee',
full_name='legacy_pb.Fee',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='version', full_name='legacy_pb.Fee.version', index=0,
number=1, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='currency', full_name='legacy_pb.Fee.currency', index=1,
number=2, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='address', full_name='legacy_pb.Fee.address', index=2,
number=3, type=12, cpp_type=9, label=2,
has_default_value=False, default_value=_b(""),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='amount', full_name='legacy_pb.Fee.amount', index=3,
number=4, type=2, cpp_type=6, label=2,
has_default_value=False, default_value=float(0),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
],
extensions=[
],
nested_types=[],
enum_types=[
_FEE_VERSION,
_FEE_CURRENCY,
],
serialized_options=None,
is_extendable=False,
syntax='proto2',
extension_ranges=[],
oneofs=[
],
serialized_start=25,
serialized_end=252,
)
_FEE.fields_by_name['version'].enum_type = _FEE_VERSION
_FEE.fields_by_name['currency'].enum_type = _FEE_CURRENCY
_FEE_VERSION.containing_type = _FEE
_FEE_CURRENCY.containing_type = _FEE
DESCRIPTOR.message_types_by_name['Fee'] = _FEE
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
Fee = _reflection.GeneratedProtocolMessageType('Fee', (_message.Message,), dict(
DESCRIPTOR = _FEE,
__module__ = 'fee_pb2'
# @@protoc_insertion_point(class_scope:legacy_pb.Fee)
))
_sym_db.RegisterMessage(Fee)
# @@protoc_insertion_point(module_scope)

158
scribe/schema/types/v1/legacy_claim_pb2.py Normal file
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# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: legacy_claim.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
from . import stream_pb2 as stream__pb2
from . import certificate_pb2 as certificate__pb2
from . import signature_pb2 as signature__pb2
DESCRIPTOR = _descriptor.FileDescriptor(
name='legacy_claim.proto',
package='legacy_pb',
syntax='proto2',
serialized_options=None,
serialized_pb=_b('\n\x12legacy_claim.proto\x12\tlegacy_pb\x1a\x0cstream.proto\x1a\x11\x63\x65rtificate.proto\x1a\x0fsignature.proto\"\xd9\x02\n\x05\x43laim\x12)\n\x07version\x18\x01 \x02(\x0e\x32\x18.legacy_pb.Claim.Version\x12-\n\tclaimType\x18\x02 \x02(\x0e\x32\x1a.legacy_pb.Claim.ClaimType\x12!\n\x06stream\x18\x03 \x01(\x0b\x32\x11.legacy_pb.Stream\x12+\n\x0b\x63\x65rtificate\x18\x04 \x01(\x0b\x32\x16.legacy_pb.Certificate\x12\x30\n\x12publisherSignature\x18\x05 \x01(\x0b\x32\x14.legacy_pb.Signature\"*\n\x07Version\x12\x13\n\x0fUNKNOWN_VERSION\x10\x00\x12\n\n\x06_0_0_1\x10\x01\"H\n\tClaimType\x12\x16\n\x12UNKNOWN_CLAIM_TYPE\x10\x00\x12\x0e\n\nstreamType\x10\x01\x12\x13\n\x0f\x63\x65rtificateType\x10\x02')
,
dependencies=[stream__pb2.DESCRIPTOR,certificate__pb2.DESCRIPTOR,signature__pb2.DESCRIPTOR,])
_CLAIM_VERSION = _descriptor.EnumDescriptor(
name='Version',
full_name='legacy_pb.Claim.Version',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_VERSION', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='_0_0_1', index=1, number=1,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=313,
serialized_end=355,
)
_sym_db.RegisterEnumDescriptor(_CLAIM_VERSION)
_CLAIM_CLAIMTYPE = _descriptor.EnumDescriptor(
name='ClaimType',
full_name='legacy_pb.Claim.ClaimType',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_CLAIM_TYPE', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='streamType', index=1, number=1,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='certificateType', index=2, number=2,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=357,
serialized_end=429,
)
_sym_db.RegisterEnumDescriptor(_CLAIM_CLAIMTYPE)
_CLAIM = _descriptor.Descriptor(
name='Claim',
full_name='legacy_pb.Claim',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='version', full_name='legacy_pb.Claim.version', index=0,
number=1, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='claimType', full_name='legacy_pb.Claim.claimType', index=1,
number=2, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='stream', full_name='legacy_pb.Claim.stream', index=2,
number=3, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='certificate', full_name='legacy_pb.Claim.certificate', index=3,
number=4, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='publisherSignature', full_name='legacy_pb.Claim.publisherSignature', index=4,
number=5, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
],
extensions=[
],
nested_types=[],
enum_types=[
_CLAIM_VERSION,
_CLAIM_CLAIMTYPE,
],
serialized_options=None,
is_extendable=False,
syntax='proto2',
extension_ranges=[],
oneofs=[
],
serialized_start=84,
serialized_end=429,
)
_CLAIM.fields_by_name['version'].enum_type = _CLAIM_VERSION
_CLAIM.fields_by_name['claimType'].enum_type = _CLAIM_CLAIMTYPE
_CLAIM.fields_by_name['stream'].message_type = stream__pb2._STREAM
_CLAIM.fields_by_name['certificate'].message_type = certificate__pb2._CERTIFICATE
_CLAIM.fields_by_name['publisherSignature'].message_type = signature__pb2._SIGNATURE
_CLAIM_VERSION.containing_type = _CLAIM
_CLAIM_CLAIMTYPE.containing_type = _CLAIM
DESCRIPTOR.message_types_by_name['Claim'] = _CLAIM
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
Claim = _reflection.GeneratedProtocolMessageType('Claim', (_message.Message,), dict(
DESCRIPTOR = _CLAIM,
__module__ = 'legacy_claim_pb2'
# @@protoc_insertion_point(class_scope:legacy_pb.Claim)
))
_sym_db.RegisterMessage(Claim)
# @@protoc_insertion_point(module_scope)

936
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118
scribe/schema/types/v1/signature_pb2.py Normal file
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# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: signature.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
from . import certificate_pb2 as certificate__pb2
DESCRIPTOR = _descriptor.FileDescriptor(
name='signature.proto',
package='legacy_pb',
syntax='proto2',
serialized_options=None,
serialized_pb=_b('\n\x0fsignature.proto\x12\tlegacy_pb\x1a\x11\x63\x65rtificate.proto\"\xbb\x01\n\tSignature\x12-\n\x07version\x18\x01 \x02(\x0e\x32\x1c.legacy_pb.Signature.Version\x12)\n\rsignatureType\x18\x02 \x02(\x0e\x32\x12.legacy_pb.KeyType\x12\x11\n\tsignature\x18\x03 \x02(\x0c\x12\x15\n\rcertificateId\x18\x04 \x02(\x0c\"*\n\x07Version\x12\x13\n\x0fUNKNOWN_VERSION\x10\x00\x12\n\n\x06_0_0_1\x10\x01')
,
dependencies=[certificate__pb2.DESCRIPTOR,])
_SIGNATURE_VERSION = _descriptor.EnumDescriptor(
name='Version',
full_name='legacy_pb.Signature.Version',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_VERSION', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='_0_0_1', index=1, number=1,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=195,
serialized_end=237,
)
_sym_db.RegisterEnumDescriptor(_SIGNATURE_VERSION)
_SIGNATURE = _descriptor.Descriptor(
name='Signature',
full_name='legacy_pb.Signature',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='version', full_name='legacy_pb.Signature.version', index=0,
number=1, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='signatureType', full_name='legacy_pb.Signature.signatureType', index=1,
number=2, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='signature', full_name='legacy_pb.Signature.signature', index=2,
number=3, type=12, cpp_type=9, label=2,
has_default_value=False, default_value=_b(""),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='certificateId', full_name='legacy_pb.Signature.certificateId', index=3,
number=4, type=12, cpp_type=9, label=2,
has_default_value=False, default_value=_b(""),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
],
extensions=[
],
nested_types=[],
enum_types=[
_SIGNATURE_VERSION,
],
serialized_options=None,
is_extendable=False,
syntax='proto2',
extension_ranges=[],
oneofs=[
],
serialized_start=50,
serialized_end=237,
)
_SIGNATURE.fields_by_name['version'].enum_type = _SIGNATURE_VERSION
_SIGNATURE.fields_by_name['signatureType'].enum_type = certificate__pb2._KEYTYPE
_SIGNATURE_VERSION.containing_type = _SIGNATURE
DESCRIPTOR.message_types_by_name['Signature'] = _SIGNATURE
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
Signature = _reflection.GeneratedProtocolMessageType('Signature', (_message.Message,), dict(
DESCRIPTOR = _SIGNATURE,
__module__ = 'signature_pb2'
# @@protoc_insertion_point(class_scope:legacy_pb.Signature)
))
_sym_db.RegisterMessage(Signature)
# @@protoc_insertion_point(module_scope)

140
scribe/schema/types/v1/source_pb2.py Normal file
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@ -0,0 +1,140 @@
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: source.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='source.proto',
package='legacy_pb',
syntax='proto2',
serialized_options=None,
serialized_pb=_b('\n\x0csource.proto\x12\tlegacy_pb\"\xf2\x01\n\x06Source\x12*\n\x07version\x18\x01 \x02(\x0e\x32\x19.legacy_pb.Source.Version\x12\x31\n\nsourceType\x18\x02 \x02(\x0e\x32\x1d.legacy_pb.Source.SourceTypes\x12\x0e\n\x06source\x18\x03 \x02(\x0c\x12\x13\n\x0b\x63ontentType\x18\x04 \x02(\t\"*\n\x07Version\x12\x13\n\x0fUNKNOWN_VERSION\x10\x00\x12\n\n\x06_0_0_1\x10\x01\"8\n\x0bSourceTypes\x12\x17\n\x13UNKNOWN_SOURCE_TYPE\x10\x00\x12\x10\n\x0clbry_sd_hash\x10\x01')
)
_SOURCE_VERSION = _descriptor.EnumDescriptor(
name='Version',
full_name='legacy_pb.Source.Version',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_VERSION', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='_0_0_1', index=1, number=1,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=170,
serialized_end=212,
)
_sym_db.RegisterEnumDescriptor(_SOURCE_VERSION)
_SOURCE_SOURCETYPES = _descriptor.EnumDescriptor(
name='SourceTypes',
full_name='legacy_pb.Source.SourceTypes',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_SOURCE_TYPE', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='lbry_sd_hash', index=1, number=1,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=214,
serialized_end=270,
)
_sym_db.RegisterEnumDescriptor(_SOURCE_SOURCETYPES)
_SOURCE = _descriptor.Descriptor(
name='Source',
full_name='legacy_pb.Source',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='version', full_name='legacy_pb.Source.version', index=0,
number=1, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='sourceType', full_name='legacy_pb.Source.sourceType', index=1,
number=2, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='source', full_name='legacy_pb.Source.source', index=2,
number=3, type=12, cpp_type=9, label=2,
has_default_value=False, default_value=_b(""),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='contentType', full_name='legacy_pb.Source.contentType', index=3,
number=4, type=9, cpp_type=9, label=2,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
],
extensions=[
],
nested_types=[],
enum_types=[
_SOURCE_VERSION,
_SOURCE_SOURCETYPES,
],
serialized_options=None,
is_extendable=False,
syntax='proto2',
extension_ranges=[],
oneofs=[
],
serialized_start=28,
serialized_end=270,
)
_SOURCE.fields_by_name['version'].enum_type = _SOURCE_VERSION
_SOURCE.fields_by_name['sourceType'].enum_type = _SOURCE_SOURCETYPES
_SOURCE_VERSION.containing_type = _SOURCE
_SOURCE_SOURCETYPES.containing_type = _SOURCE
DESCRIPTOR.message_types_by_name['Source'] = _SOURCE
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
Source = _reflection.GeneratedProtocolMessageType('Source', (_message.Message,), dict(
DESCRIPTOR = _SOURCE,
__module__ = 'source_pb2'
# @@protoc_insertion_point(class_scope:legacy_pb.Source)
))
_sym_db.RegisterMessage(Source)
# @@protoc_insertion_point(module_scope)

113
scribe/schema/types/v1/stream_pb2.py Normal file
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@ -0,0 +1,113 @@
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: stream.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
from . import metadata_pb2 as metadata__pb2
from . import source_pb2 as source__pb2
DESCRIPTOR = _descriptor.FileDescriptor(
name='stream.proto',
package='legacy_pb',
syntax='proto2',
serialized_options=None,
serialized_pb=_b('\n\x0cstream.proto\x12\tlegacy_pb\x1a\x0emetadata.proto\x1a\x0csource.proto\"\xaa\x01\n\x06Stream\x12*\n\x07version\x18\x01 \x02(\x0e\x32\x19.legacy_pb.Stream.Version\x12%\n\x08metadata\x18\x02 \x02(\x0b\x32\x13.legacy_pb.Metadata\x12!\n\x06source\x18\x03 \x02(\x0b\x32\x11.legacy_pb.Source\"*\n\x07Version\x12\x13\n\x0fUNKNOWN_VERSION\x10\x00\x12\n\n\x06_0_0_1\x10\x01')
,
dependencies=[metadata__pb2.DESCRIPTOR,source__pb2.DESCRIPTOR,])
_STREAM_VERSION = _descriptor.EnumDescriptor(
name='Version',
full_name='legacy_pb.Stream.Version',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_VERSION', index=0, number=0,
serialized_options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='_0_0_1', index=1, number=1,
serialized_options=None,
type=None),
],
containing_type=None,
serialized_options=None,
serialized_start=186,
serialized_end=228,
)
_sym_db.RegisterEnumDescriptor(_STREAM_VERSION)
_STREAM = _descriptor.Descriptor(
name='Stream',
full_name='legacy_pb.Stream',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='version', full_name='legacy_pb.Stream.version', index=0,
number=1, type=14, cpp_type=8, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='metadata', full_name='legacy_pb.Stream.metadata', index=1,
number=2, type=11, cpp_type=10, label=2,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
_descriptor.FieldDescriptor(
name='source', full_name='legacy_pb.Stream.source', index=2,
number=3, type=11, cpp_type=10, label=2,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR),
],
extensions=[
],
nested_types=[],
enum_types=[
_STREAM_VERSION,
],
serialized_options=None,
is_extendable=False,
syntax='proto2',
extension_ranges=[],
oneofs=[
],
serialized_start=58,
serialized_end=228,
)
_STREAM.fields_by_name['version'].enum_type = _STREAM_VERSION
_STREAM.fields_by_name['metadata'].message_type = metadata__pb2._METADATA
_STREAM.fields_by_name['source'].message_type = source__pb2._SOURCE
_STREAM_VERSION.containing_type = _STREAM
DESCRIPTOR.message_types_by_name['Stream'] = _STREAM
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
Stream = _reflection.GeneratedProtocolMessageType('Stream', (_message.Message,), dict(
DESCRIPTOR = _STREAM,
__module__ = 'stream_pb2'
# @@protoc_insertion_point(class_scope:legacy_pb.Stream)
))
_sym_db.RegisterMessage(Stream)
# @@protoc_insertion_point(module_scope)

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scribe/schema/types/v2/__init__.py Normal file
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scribe/schema/types/v2/claim_pb2.py Normal file
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scribe/schema/types/v2/hub_pb2.py Normal file
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@ -0,0 +1,960 @@
# -*- coding: utf-8 -*-
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: hub.proto
"""Generated protocol buffer code."""
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
from . import result_pb2 as result__pb2
DESCRIPTOR = _descriptor.FileDescriptor(
name='hub.proto',
package='pb',
syntax='proto3',
serialized_options=b'Z$github.com/lbryio/hub/protobuf/go/pb',
create_key=_descriptor._internal_create_key,
serialized_pb=b'\n\thub.proto\x12\x02pb\x1a\x0cresult.proto\"\x0e\n\x0c\x45mptyMessage\".\n\rServerMessage\x12\x0f\n\x07\x61\x64\x64ress\x18\x01 \x01(\t\x12\x0c\n\x04port\x18\x02 \x01(\t\"N\n\x0cHelloMessage\x12\x0c\n\x04port\x18\x01 \x01(\t\x12\x0c\n\x04host\x18\x02 \x01(\t\x12\"\n\x07servers\x18\x03 \x03(\x0b\x32\x11.pb.ServerMessage\"0\n\x0fInvertibleField\x12\x0e\n\x06invert\x18\x01 \x01(\x08\x12\r\n\x05value\x18\x02 \x03(\t\"\x1c\n\x0bStringValue\x12\r\n\x05value\x18\x01 \x01(\t\"\x1a\n\tBoolValue\x12\r\n\x05value\x18\x01 \x01(\x08\"\x1c\n\x0bUInt32Value\x12\r\n\x05value\x18\x01 \x01(\r\"j\n\nRangeField\x12\x1d\n\x02op\x18\x01 \x01(\x0e\x32\x11.pb.RangeField.Op\x12\r\n\x05value\x18\x02 \x03(\x05\".\n\x02Op\x12\x06\n\x02\x45Q\x10\x00\x12\x07\n\x03LTE\x10\x01\x12\x07\n\x03GTE\x10\x02\x12\x06\n\x02LT\x10\x03\x12\x06\n\x02GT\x10\x04\"\x8e\x0c\n\rSearchRequest\x12%\n\x08\x63laim_id\x18\x01 \x01(\x0b\x32\x13.pb.InvertibleField\x12\'\n\nchannel_id\x18\x02 \x01(\x0b\x32\x13.pb.InvertibleField\x12\x0c\n\x04text\x18\x03 \x01(\t\x12\r\n\x05limit\x18\x04 \x01(\x05\x12\x10\n\x08order_by\x18\x05 \x03(\t\x12\x0e\n\x06offset\x18\x06 \x01(\r\x12\x16\n\x0eis_controlling\x18\x07 \x01(\x08\x12\x1d\n\x15last_take_over_height\x18\x08 \x01(\t\x12\x12\n\nclaim_name\x18\t \x01(\t\x12\x17\n\x0fnormalized_name\x18\n \x01(\t\x12#\n\x0btx_position\x18\x0b \x03(\x0b\x32\x0e.pb.RangeField\x12\x1e\n\x06\x61mount\x18\x0c \x03(\x0b\x32\x0e.pb.RangeField\x12!\n\ttimestamp\x18\r \x03(\x0b\x32\x0e.pb.RangeField\x12*\n\x12\x63reation_timestamp\x18\x0e \x03(\x0b\x32\x0e.pb.RangeField\x12\x1e\n\x06height\x18\x0f \x03(\x0b\x32\x0e.pb.RangeField\x12\'\n\x0f\x63reation_height\x18\x10 \x03(\x0b\x32\x0e.pb.RangeField\x12)\n\x11\x61\x63tivation_height\x18\x11 \x03(\x0b\x32\x0e.pb.RangeField\x12)\n\x11\x65xpiration_height\x18\x12 \x03(\x0b\x32\x0e.pb.RangeField\x12$\n\x0crelease_time\x18\x13 \x03(\x0b\x32\x0e.pb.RangeField\x12\x11\n\tshort_url\x18\x14 \x01(\t\x12\x15\n\rcanonical_url\x18\x15 \x01(\t\x12\r\n\x05title\x18\x16 \x01(\t\x12\x0e\n\x06\x61uthor\x18\x17 \x01(\t\x12\x13\n\x0b\x64\x65scription\x18\x18 \x01(\t\x12\x12\n\nclaim_type\x18\x19 \x03(\t\x12$\n\x0crepost_count\x18\x1a \x03(\x0b\x32\x0e.pb.RangeField\x12\x13\n\x0bstream_type\x18\x1b \x03(\t\x12\x12\n\nmedia_type\x18\x1c \x03(\t\x12\"\n\nfee_amount\x18\x1d \x03(\x0b\x32\x0e.pb.RangeField\x12\x14\n\x0c\x66\x65\x65_currency\x18\x1e \x01(\t\x12 \n\x08\x64uration\x18\x1f \x03(\x0b\x32\x0e.pb.RangeField\x12\x19\n\x11reposted_claim_id\x18 \x01(\t\x12#\n\x0b\x63\x65nsor_type\x18! \x03(\x0b\x32\x0e.pb.RangeField\x12\x19\n\x11\x63laims_in_channel\x18\" \x01(\t\x12)\n\x12is_signature_valid\x18$ \x01(\x0b\x32\r.pb.BoolValue\x12(\n\x10\x65\x66\x66\x65\x63tive_amount\x18% \x03(\x0b\x32\x0e.pb.RangeField\x12&\n\x0esupport_amount\x18& \x03(\x0b\x32\x0e.pb.RangeField\x12&\n\x0etrending_score\x18\' \x03(\x0b\x32\x0e.pb.RangeField\x12\r\n\x05tx_id\x18+ \x01(\t\x12 \n\x07tx_nout\x18, \x01(\x0b\x32\x0f.pb.UInt32Value\x12\x11\n\tsignature\x18- \x01(\t\x12\x18\n\x10signature_digest\x18. \x01(\t\x12\x18\n\x10public_key_bytes\x18/ \x01(\t\x12\x15\n\rpublic_key_id\x18\x30 \x01(\t\x12\x10\n\x08\x61ny_tags\x18\x31 \x03(\t\x12\x10\n\x08\x61ll_tags\x18\x32 \x03(\t\x12\x10\n\x08not_tags\x18\x33 \x03(\t\x12\x1d\n\x15has_channel_signature\x18\x34 \x01(\x08\x12!\n\nhas_source\x18\x35 \x01(\x0b\x32\r.pb.BoolValue\x12 \n\x18limit_claims_per_channel\x18\x36 \x01(\x05\x12\x15\n\rany_languages\x18\x37 \x03(\t\x12\x15\n\rall_languages\x18\x38 \x03(\t\x12\x19\n\x11remove_duplicates\x18\x39 \x01(\x08\x12\x11\n\tno_totals\x18: \x01(\x08\x12\x0f\n\x07sd_hash\x18; \x01(\t2\x88\x03\n\x03Hub\x12*\n\x06Search\x12\x11.pb.SearchRequest\x1a\x0b.pb.Outputs\"\x00\x12+\n\x04Ping\x12\x10.pb.EmptyMessage\x1a\x0f.pb.StringValue\"\x00\x12-\n\x05Hello\x12\x10.pb.HelloMessage\x1a\x10.pb.HelloMessage\"\x00\x12/\n\x07\x41\x64\x64Peer\x12\x11.pb.ServerMessage\x1a\x0f.pb.StringValue\"\x00\x12\x35\n\rPeerSubscribe\x12\x11.pb.ServerMessage\x1a\x0f.pb.StringValue\"\x00\x12.\n\x07Version\x12\x10.pb.EmptyMessage\x1a\x0f.pb.StringValue\"\x00\x12/\n\x08\x46\x65\x61tures\x12\x10.pb.EmptyMessage\x1a\x0f.pb.StringValue\"\x00\x12\x30\n\tBroadcast\x12\x10.pb.EmptyMessage\x1a\x0f.pb.UInt32Value\"\x00\x42&Z$github.com/lbryio/hub/protobuf/go/pbb\x06proto3'
,
dependencies=[result__pb2.DESCRIPTOR,])
_RANGEFIELD_OP = _descriptor.EnumDescriptor(
name='Op',
full_name='pb.RangeField.Op',
filename=None,
file=DESCRIPTOR,
create_key=_descriptor._internal_create_key,
values=[
_descriptor.EnumValueDescriptor(
name='EQ', index=0, number=0,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
_descriptor.EnumValueDescriptor(
name='LTE', index=1, number=1,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
_descriptor.EnumValueDescriptor(
name='GTE', index=2, number=2,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
_descriptor.EnumValueDescriptor(
name='LT', index=3, number=3,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
_descriptor.EnumValueDescriptor(
name='GT', index=4, number=4,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
],
containing_type=None,
serialized_options=None,
serialized_start=373,
serialized_end=419,
)
_sym_db.RegisterEnumDescriptor(_RANGEFIELD_OP)
_EMPTYMESSAGE = _descriptor.Descriptor(
name='EmptyMessage',
full_name='pb.EmptyMessage',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=31,
serialized_end=45,
)
_SERVERMESSAGE = _descriptor.Descriptor(
name='ServerMessage',
full_name='pb.ServerMessage',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='address', full_name='pb.ServerMessage.address', index=0,
number=1, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='port', full_name='pb.ServerMessage.port', index=1,
number=2, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=47,
serialized_end=93,
)
_HELLOMESSAGE = _descriptor.Descriptor(
name='HelloMessage',
full_name='pb.HelloMessage',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='port', full_name='pb.HelloMessage.port', index=0,
number=1, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='host', full_name='pb.HelloMessage.host', index=1,
number=2, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='servers', full_name='pb.HelloMessage.servers', index=2,
number=3, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=95,
serialized_end=173,
)
_INVERTIBLEFIELD = _descriptor.Descriptor(
name='InvertibleField',
full_name='pb.InvertibleField',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='invert', full_name='pb.InvertibleField.invert', index=0,
number=1, type=8, cpp_type=7, label=1,
has_default_value=False, default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='value', full_name='pb.InvertibleField.value', index=1,
number=2, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=175,
serialized_end=223,
)
_STRINGVALUE = _descriptor.Descriptor(
name='StringValue',
full_name='pb.StringValue',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='value', full_name='pb.StringValue.value', index=0,
number=1, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=225,
serialized_end=253,
)
_BOOLVALUE = _descriptor.Descriptor(
name='BoolValue',
full_name='pb.BoolValue',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='value', full_name='pb.BoolValue.value', index=0,
number=1, type=8, cpp_type=7, label=1,
has_default_value=False, default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=255,
serialized_end=281,
)
_UINT32VALUE = _descriptor.Descriptor(
name='UInt32Value',
full_name='pb.UInt32Value',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='value', full_name='pb.UInt32Value.value', index=0,
number=1, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=283,
serialized_end=311,
)
_RANGEFIELD = _descriptor.Descriptor(
name='RangeField',
full_name='pb.RangeField',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='op', full_name='pb.RangeField.op', index=0,
number=1, type=14, cpp_type=8, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='value', full_name='pb.RangeField.value', index=1,
number=2, type=5, cpp_type=1, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
_RANGEFIELD_OP,
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=313,
serialized_end=419,
)
_SEARCHREQUEST = _descriptor.Descriptor(
name='SearchRequest',
full_name='pb.SearchRequest',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='claim_id', full_name='pb.SearchRequest.claim_id', index=0,
number=1, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='channel_id', full_name='pb.SearchRequest.channel_id', index=1,
number=2, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='text', full_name='pb.SearchRequest.text', index=2,
number=3, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='limit', full_name='pb.SearchRequest.limit', index=3,
number=4, type=5, cpp_type=1, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='order_by', full_name='pb.SearchRequest.order_by', index=4,
number=5, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='offset', full_name='pb.SearchRequest.offset', index=5,
number=6, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='is_controlling', full_name='pb.SearchRequest.is_controlling', index=6,
number=7, type=8, cpp_type=7, label=1,
has_default_value=False, default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='last_take_over_height', full_name='pb.SearchRequest.last_take_over_height', index=7,
number=8, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='claim_name', full_name='pb.SearchRequest.claim_name', index=8,
number=9, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='normalized_name', full_name='pb.SearchRequest.normalized_name', index=9,
number=10, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='tx_position', full_name='pb.SearchRequest.tx_position', index=10,
number=11, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='amount', full_name='pb.SearchRequest.amount', index=11,
number=12, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='timestamp', full_name='pb.SearchRequest.timestamp', index=12,
number=13, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='creation_timestamp', full_name='pb.SearchRequest.creation_timestamp', index=13,
number=14, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='height', full_name='pb.SearchRequest.height', index=14,
number=15, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='creation_height', full_name='pb.SearchRequest.creation_height', index=15,
number=16, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='activation_height', full_name='pb.SearchRequest.activation_height', index=16,
number=17, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='expiration_height', full_name='pb.SearchRequest.expiration_height', index=17,
number=18, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='release_time', full_name='pb.SearchRequest.release_time', index=18,
number=19, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='short_url', full_name='pb.SearchRequest.short_url', index=19,
number=20, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='canonical_url', full_name='pb.SearchRequest.canonical_url', index=20,
number=21, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='title', full_name='pb.SearchRequest.title', index=21,
number=22, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='author', full_name='pb.SearchRequest.author', index=22,
number=23, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='description', full_name='pb.SearchRequest.description', index=23,
number=24, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='claim_type', full_name='pb.SearchRequest.claim_type', index=24,
number=25, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='repost_count', full_name='pb.SearchRequest.repost_count', index=25,
number=26, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='stream_type', full_name='pb.SearchRequest.stream_type', index=26,
number=27, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='media_type', full_name='pb.SearchRequest.media_type', index=27,
number=28, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='fee_amount', full_name='pb.SearchRequest.fee_amount', index=28,
number=29, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='fee_currency', full_name='pb.SearchRequest.fee_currency', index=29,
number=30, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='duration', full_name='pb.SearchRequest.duration', index=30,
number=31, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='reposted_claim_id', full_name='pb.SearchRequest.reposted_claim_id', index=31,
number=32, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='censor_type', full_name='pb.SearchRequest.censor_type', index=32,
number=33, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='claims_in_channel', full_name='pb.SearchRequest.claims_in_channel', index=33,
number=34, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='is_signature_valid', full_name='pb.SearchRequest.is_signature_valid', index=34,
number=36, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='effective_amount', full_name='pb.SearchRequest.effective_amount', index=35,
number=37, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='support_amount', full_name='pb.SearchRequest.support_amount', index=36,
number=38, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='trending_score', full_name='pb.SearchRequest.trending_score', index=37,
number=39, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='tx_id', full_name='pb.SearchRequest.tx_id', index=38,
number=43, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='tx_nout', full_name='pb.SearchRequest.tx_nout', index=39,
number=44, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='signature', full_name='pb.SearchRequest.signature', index=40,
number=45, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='signature_digest', full_name='pb.SearchRequest.signature_digest', index=41,
number=46, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='public_key_bytes', full_name='pb.SearchRequest.public_key_bytes', index=42,
number=47, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='public_key_id', full_name='pb.SearchRequest.public_key_id', index=43,
number=48, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='any_tags', full_name='pb.SearchRequest.any_tags', index=44,
number=49, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='all_tags', full_name='pb.SearchRequest.all_tags', index=45,
number=50, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='not_tags', full_name='pb.SearchRequest.not_tags', index=46,
number=51, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='has_channel_signature', full_name='pb.SearchRequest.has_channel_signature', index=47,
number=52, type=8, cpp_type=7, label=1,
has_default_value=False, default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='has_source', full_name='pb.SearchRequest.has_source', index=48,
number=53, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='limit_claims_per_channel', full_name='pb.SearchRequest.limit_claims_per_channel', index=49,
number=54, type=5, cpp_type=1, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='any_languages', full_name='pb.SearchRequest.any_languages', index=50,
number=55, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='all_languages', full_name='pb.SearchRequest.all_languages', index=51,
number=56, type=9, cpp_type=9, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='remove_duplicates', full_name='pb.SearchRequest.remove_duplicates', index=52,
number=57, type=8, cpp_type=7, label=1,
has_default_value=False, default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='no_totals', full_name='pb.SearchRequest.no_totals', index=53,
number=58, type=8, cpp_type=7, label=1,
has_default_value=False, default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='sd_hash', full_name='pb.SearchRequest.sd_hash', index=54,
number=59, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=422,
serialized_end=1972,
)
_HELLOMESSAGE.fields_by_name['servers'].message_type = _SERVERMESSAGE
_RANGEFIELD.fields_by_name['op'].enum_type = _RANGEFIELD_OP
_RANGEFIELD_OP.containing_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['claim_id'].message_type = _INVERTIBLEFIELD
_SEARCHREQUEST.fields_by_name['channel_id'].message_type = _INVERTIBLEFIELD
_SEARCHREQUEST.fields_by_name['tx_position'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['amount'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['timestamp'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['creation_timestamp'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['height'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['creation_height'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['activation_height'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['expiration_height'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['release_time'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['repost_count'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['fee_amount'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['duration'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['censor_type'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['is_signature_valid'].message_type = _BOOLVALUE
_SEARCHREQUEST.fields_by_name['effective_amount'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['support_amount'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['trending_score'].message_type = _RANGEFIELD
_SEARCHREQUEST.fields_by_name['tx_nout'].message_type = _UINT32VALUE
_SEARCHREQUEST.fields_by_name['has_source'].message_type = _BOOLVALUE
DESCRIPTOR.message_types_by_name['EmptyMessage'] = _EMPTYMESSAGE
DESCRIPTOR.message_types_by_name['ServerMessage'] = _SERVERMESSAGE
DESCRIPTOR.message_types_by_name['HelloMessage'] = _HELLOMESSAGE
DESCRIPTOR.message_types_by_name['InvertibleField'] = _INVERTIBLEFIELD
DESCRIPTOR.message_types_by_name['StringValue'] = _STRINGVALUE
DESCRIPTOR.message_types_by_name['BoolValue'] = _BOOLVALUE
DESCRIPTOR.message_types_by_name['UInt32Value'] = _UINT32VALUE
DESCRIPTOR.message_types_by_name['RangeField'] = _RANGEFIELD
DESCRIPTOR.message_types_by_name['SearchRequest'] = _SEARCHREQUEST
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
EmptyMessage = _reflection.GeneratedProtocolMessageType('EmptyMessage', (_message.Message,), {
'DESCRIPTOR' : _EMPTYMESSAGE,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.EmptyMessage)
})
_sym_db.RegisterMessage(EmptyMessage)
ServerMessage = _reflection.GeneratedProtocolMessageType('ServerMessage', (_message.Message,), {
'DESCRIPTOR' : _SERVERMESSAGE,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.ServerMessage)
})
_sym_db.RegisterMessage(ServerMessage)
HelloMessage = _reflection.GeneratedProtocolMessageType('HelloMessage', (_message.Message,), {
'DESCRIPTOR' : _HELLOMESSAGE,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.HelloMessage)
})
_sym_db.RegisterMessage(HelloMessage)
InvertibleField = _reflection.GeneratedProtocolMessageType('InvertibleField', (_message.Message,), {
'DESCRIPTOR' : _INVERTIBLEFIELD,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.InvertibleField)
})
_sym_db.RegisterMessage(InvertibleField)
StringValue = _reflection.GeneratedProtocolMessageType('StringValue', (_message.Message,), {
'DESCRIPTOR' : _STRINGVALUE,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.StringValue)
})
_sym_db.RegisterMessage(StringValue)
BoolValue = _reflection.GeneratedProtocolMessageType('BoolValue', (_message.Message,), {
'DESCRIPTOR' : _BOOLVALUE,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.BoolValue)
})
_sym_db.RegisterMessage(BoolValue)
UInt32Value = _reflection.GeneratedProtocolMessageType('UInt32Value', (_message.Message,), {
'DESCRIPTOR' : _UINT32VALUE,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.UInt32Value)
})
_sym_db.RegisterMessage(UInt32Value)
RangeField = _reflection.GeneratedProtocolMessageType('RangeField', (_message.Message,), {
'DESCRIPTOR' : _RANGEFIELD,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.RangeField)
})
_sym_db.RegisterMessage(RangeField)
SearchRequest = _reflection.GeneratedProtocolMessageType('SearchRequest', (_message.Message,), {
'DESCRIPTOR' : _SEARCHREQUEST,
'__module__' : 'hub_pb2'
# @@protoc_insertion_point(class_scope:pb.SearchRequest)
})
_sym_db.RegisterMessage(SearchRequest)
DESCRIPTOR._options = None
_HUB = _descriptor.ServiceDescriptor(
name='Hub',
full_name='pb.Hub',
file=DESCRIPTOR,
index=0,
serialized_options=None,
create_key=_descriptor._internal_create_key,
serialized_start=1975,
serialized_end=2367,
methods=[
_descriptor.MethodDescriptor(
name='Search',
full_name='pb.Hub.Search',
index=0,
containing_service=None,
input_type=_SEARCHREQUEST,
output_type=result__pb2._OUTPUTS,
serialized_options=None,
create_key=_descriptor._internal_create_key,
),
_descriptor.MethodDescriptor(
name='Ping',
full_name='pb.Hub.Ping',
index=1,
containing_service=None,
input_type=_EMPTYMESSAGE,
output_type=_STRINGVALUE,
serialized_options=None,
create_key=_descriptor._internal_create_key,
),
_descriptor.MethodDescriptor(
name='Hello',
full_name='pb.Hub.Hello',
index=2,
containing_service=None,
input_type=_HELLOMESSAGE,
output_type=_HELLOMESSAGE,
serialized_options=None,
create_key=_descriptor._internal_create_key,
),
_descriptor.MethodDescriptor(
name='AddPeer',
full_name='pb.Hub.AddPeer',
index=3,
containing_service=None,
input_type=_SERVERMESSAGE,
output_type=_STRINGVALUE,
serialized_options=None,
create_key=_descriptor._internal_create_key,
),
_descriptor.MethodDescriptor(
name='PeerSubscribe',
full_name='pb.Hub.PeerSubscribe',
index=4,
containing_service=None,
input_type=_SERVERMESSAGE,
output_type=_STRINGVALUE,
serialized_options=None,
create_key=_descriptor._internal_create_key,
),
_descriptor.MethodDescriptor(
name='Version',
full_name='pb.Hub.Version',
index=5,
containing_service=None,
input_type=_EMPTYMESSAGE,
output_type=_STRINGVALUE,
serialized_options=None,
create_key=_descriptor._internal_create_key,
),
_descriptor.MethodDescriptor(
name='Features',
full_name='pb.Hub.Features',
index=6,
containing_service=None,
input_type=_EMPTYMESSAGE,
output_type=_STRINGVALUE,
serialized_options=None,
create_key=_descriptor._internal_create_key,
),
_descriptor.MethodDescriptor(
name='Broadcast',
full_name='pb.Hub.Broadcast',
index=7,
containing_service=None,
input_type=_EMPTYMESSAGE,
output_type=_UINT32VALUE,
serialized_options=None,
create_key=_descriptor._internal_create_key,
),
])
_sym_db.RegisterServiceDescriptor(_HUB)
DESCRIPTOR.services_by_name['Hub'] = _HUB
# @@protoc_insertion_point(module_scope)

298
scribe/schema/types/v2/hub_pb2_grpc.py Normal file
View file

@ -0,0 +1,298 @@
# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
"""Client and server classes corresponding to protobuf-defined services."""
import grpc
from . import hub_pb2 as hub__pb2
from . import result_pb2 as result__pb2
class HubStub(object):
"""Missing associated documentation comment in .proto file."""
def __init__(self, channel):
"""Constructor.
Args:
channel: A grpc.Channel.
"""
self.Search = channel.unary_unary(
'/pb.Hub/Search',
request_serializer=hub__pb2.SearchRequest.SerializeToString,
response_deserializer=result__pb2.Outputs.FromString,
)
self.Ping = channel.unary_unary(
'/pb.Hub/Ping',
request_serializer=hub__pb2.EmptyMessage.SerializeToString,
response_deserializer=hub__pb2.StringValue.FromString,
)
self.Hello = channel.unary_unary(
'/pb.Hub/Hello',
request_serializer=hub__pb2.HelloMessage.SerializeToString,
response_deserializer=hub__pb2.HelloMessage.FromString,
)
self.AddPeer = channel.unary_unary(
'/pb.Hub/AddPeer',
request_serializer=hub__pb2.ServerMessage.SerializeToString,
response_deserializer=hub__pb2.StringValue.FromString,
)
self.PeerSubscribe = channel.unary_unary(
'/pb.Hub/PeerSubscribe',
request_serializer=hub__pb2.ServerMessage.SerializeToString,
response_deserializer=hub__pb2.StringValue.FromString,
)
self.Version = channel.unary_unary(
'/pb.Hub/Version',
request_serializer=hub__pb2.EmptyMessage.SerializeToString,
response_deserializer=hub__pb2.StringValue.FromString,
)
self.Features = channel.unary_unary(
'/pb.Hub/Features',
request_serializer=hub__pb2.EmptyMessage.SerializeToString,
response_deserializer=hub__pb2.StringValue.FromString,
)
self.Broadcast = channel.unary_unary(
'/pb.Hub/Broadcast',
request_serializer=hub__pb2.EmptyMessage.SerializeToString,
response_deserializer=hub__pb2.UInt32Value.FromString,
)
class HubServicer(object):
"""Missing associated documentation comment in .proto file."""
def Search(self, request, context):
"""Missing associated documentation comment in .proto file."""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def Ping(self, request, context):
"""Missing associated documentation comment in .proto file."""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def Hello(self, request, context):
"""Missing associated documentation comment in .proto file."""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def AddPeer(self, request, context):
"""Missing associated documentation comment in .proto file."""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def PeerSubscribe(self, request, context):
"""Missing associated documentation comment in .proto file."""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def Version(self, request, context):
"""Missing associated documentation comment in .proto file."""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def Features(self, request, context):
"""Missing associated documentation comment in .proto file."""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def Broadcast(self, request, context):
"""Missing associated documentation comment in .proto file."""
context.set_code(grpc.StatusCode.UNIMPLEMENTED)
context.set_details('Method not implemented!')
raise NotImplementedError('Method not implemented!')
def add_HubServicer_to_server(servicer, server):
rpc_method_handlers = {
'Search': grpc.unary_unary_rpc_method_handler(
servicer.Search,
request_deserializer=hub__pb2.SearchRequest.FromString,
response_serializer=result__pb2.Outputs.SerializeToString,
),
'Ping': grpc.unary_unary_rpc_method_handler(
servicer.Ping,
request_deserializer=hub__pb2.EmptyMessage.FromString,
response_serializer=hub__pb2.StringValue.SerializeToString,
),
'Hello': grpc.unary_unary_rpc_method_handler(
servicer.Hello,
request_deserializer=hub__pb2.HelloMessage.FromString,
response_serializer=hub__pb2.HelloMessage.SerializeToString,
),
'AddPeer': grpc.unary_unary_rpc_method_handler(
servicer.AddPeer,
request_deserializer=hub__pb2.ServerMessage.FromString,
response_serializer=hub__pb2.StringValue.SerializeToString,
),
'PeerSubscribe': grpc.unary_unary_rpc_method_handler(
servicer.PeerSubscribe,
request_deserializer=hub__pb2.ServerMessage.FromString,
response_serializer=hub__pb2.StringValue.SerializeToString,
),
'Version': grpc.unary_unary_rpc_method_handler(
servicer.Version,
request_deserializer=hub__pb2.EmptyMessage.FromString,
response_serializer=hub__pb2.StringValue.SerializeToString,
),
'Features': grpc.unary_unary_rpc_method_handler(
servicer.Features,
request_deserializer=hub__pb2.EmptyMessage.FromString,
response_serializer=hub__pb2.StringValue.SerializeToString,
),
'Broadcast': grpc.unary_unary_rpc_method_handler(
servicer.Broadcast,
request_deserializer=hub__pb2.EmptyMessage.FromString,
response_serializer=hub__pb2.UInt32Value.SerializeToString,
),
}
generic_handler = grpc.method_handlers_generic_handler(
'pb.Hub', rpc_method_handlers)
server.add_generic_rpc_handlers((generic_handler,))
# This class is part of an EXPERIMENTAL API.
class Hub(object):
"""Missing associated documentation comment in .proto file."""
@staticmethod
def Search(request,
target,
options=(),
channel_credentials=None,
call_credentials=None,
insecure=False,
compression=None,
wait_for_ready=None,
timeout=None,
metadata=None):
return grpc.experimental.unary_unary(request, target, '/pb.Hub/Search',
hub__pb2.SearchRequest.SerializeToString,
result__pb2.Outputs.FromString,
options, channel_credentials,
insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
@staticmethod
def Ping(request,
target,
options=(),
channel_credentials=None,
call_credentials=None,
insecure=False,
compression=None,
wait_for_ready=None,
timeout=None,
metadata=None):
return grpc.experimental.unary_unary(request, target, '/pb.Hub/Ping',
hub__pb2.EmptyMessage.SerializeToString,
hub__pb2.StringValue.FromString,
options, channel_credentials,
insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
@staticmethod
def Hello(request,
target,
options=(),
channel_credentials=None,
call_credentials=None,
insecure=False,
compression=None,
wait_for_ready=None,
timeout=None,
metadata=None):
return grpc.experimental.unary_unary(request, target, '/pb.Hub/Hello',
hub__pb2.HelloMessage.SerializeToString,
hub__pb2.HelloMessage.FromString,
options, channel_credentials,
insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
@staticmethod
def AddPeer(request,
target,
options=(),
channel_credentials=None,
call_credentials=None,
insecure=False,
compression=None,
wait_for_ready=None,
timeout=None,
metadata=None):
return grpc.experimental.unary_unary(request, target, '/pb.Hub/AddPeer',
hub__pb2.ServerMessage.SerializeToString,
hub__pb2.StringValue.FromString,
options, channel_credentials,
insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
@staticmethod
def PeerSubscribe(request,
target,
options=(),
channel_credentials=None,
call_credentials=None,
insecure=False,
compression=None,
wait_for_ready=None,
timeout=None,
metadata=None):
return grpc.experimental.unary_unary(request, target, '/pb.Hub/PeerSubscribe',
hub__pb2.ServerMessage.SerializeToString,
hub__pb2.StringValue.FromString,
options, channel_credentials,
insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
@staticmethod
def Version(request,
target,
options=(),
channel_credentials=None,
call_credentials=None,
insecure=False,
compression=None,
wait_for_ready=None,
timeout=None,
metadata=None):
return grpc.experimental.unary_unary(request, target, '/pb.Hub/Version',
hub__pb2.EmptyMessage.SerializeToString,
hub__pb2.StringValue.FromString,
options, channel_credentials,
insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
@staticmethod
def Features(request,
target,
options=(),
channel_credentials=None,
call_credentials=None,
insecure=False,
compression=None,
wait_for_ready=None,
timeout=None,
metadata=None):
return grpc.experimental.unary_unary(request, target, '/pb.Hub/Features',
hub__pb2.EmptyMessage.SerializeToString,
hub__pb2.StringValue.FromString,
options, channel_credentials,
insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
@staticmethod
def Broadcast(request,
target,
options=(),
channel_credentials=None,
call_credentials=None,
insecure=False,
compression=None,
wait_for_ready=None,
timeout=None,
metadata=None):
return grpc.experimental.unary_unary(request, target, '/pb.Hub/Broadcast',
hub__pb2.EmptyMessage.SerializeToString,
hub__pb2.UInt32Value.FromString,
options, channel_credentials,
insecure, call_credentials, compression, wait_for_ready, timeout, metadata)

69
scribe/schema/types/v2/purchase_pb2.py Normal file
View file

@ -0,0 +1,69 @@
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: purchase.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
from google.protobuf import descriptor_pb2
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='purchase.proto',
package='pb',
syntax='proto3',
serialized_pb=_b('\n\x0epurchase.proto\x12\x02pb\"\x1e\n\x08Purchase\x12\x12\n\nclaim_hash\x18\x01 \x01(\x0c\x62\x06proto3')
)
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
_PURCHASE = _descriptor.Descriptor(
name='Purchase',
full_name='pb.Purchase',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='claim_hash', full_name='pb.Purchase.claim_hash', index=0,
number=1, type=12, cpp_type=9, label=1,
has_default_value=False, default_value=_b(""),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=22,
serialized_end=52,
)
DESCRIPTOR.message_types_by_name['Purchase'] = _PURCHASE
Purchase = _reflection.GeneratedProtocolMessageType('Purchase', (_message.Message,), dict(
DESCRIPTOR = _PURCHASE,
__module__ = 'purchase_pb2'
# @@protoc_insertion_point(class_scope:pb.Purchase)
))
_sym_db.RegisterMessage(Purchase)
# @@protoc_insertion_point(module_scope)

464
scribe/schema/types/v2/result_pb2.py Normal file
View file

@ -0,0 +1,464 @@
# -*- coding: utf-8 -*-
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: result.proto
"""Generated protocol buffer code."""
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='result.proto',
package='pb',
syntax='proto3',
serialized_options=b'Z$github.com/lbryio/hub/protobuf/go/pb',
create_key=_descriptor._internal_create_key,
serialized_pb=b'\n\x0cresult.proto\x12\x02pb\"\x97\x01\n\x07Outputs\x12\x18\n\x04txos\x18\x01 \x03(\x0b\x32\n.pb.Output\x12\x1e\n\nextra_txos\x18\x02 \x03(\x0b\x32\n.pb.Output\x12\r\n\x05total\x18\x03 \x01(\r\x12\x0e\n\x06offset\x18\x04 \x01(\r\x12\x1c\n\x07\x62locked\x18\x05 \x03(\x0b\x32\x0b.pb.Blocked\x12\x15\n\rblocked_total\x18\x06 \x01(\r\"{\n\x06Output\x12\x0f\n\x07tx_hash\x18\x01 \x01(\x0c\x12\x0c\n\x04nout\x18\x02 \x01(\r\x12\x0e\n\x06height\x18\x03 \x01(\r\x12\x1e\n\x05\x63laim\x18\x07 \x01(\x0b\x32\r.pb.ClaimMetaH\x00\x12\x1a\n\x05\x65rror\x18\x0f \x01(\x0b\x32\t.pb.ErrorH\x00\x42\x06\n\x04meta\"\xe6\x02\n\tClaimMeta\x12\x1b\n\x07\x63hannel\x18\x01 \x01(\x0b\x32\n.pb.Output\x12\x1a\n\x06repost\x18\x02 \x01(\x0b\x32\n.pb.Output\x12\x11\n\tshort_url\x18\x03 \x01(\t\x12\x15\n\rcanonical_url\x18\x04 \x01(\t\x12\x16\n\x0eis_controlling\x18\x05 \x01(\x08\x12\x18\n\x10take_over_height\x18\x06 \x01(\r\x12\x17\n\x0f\x63reation_height\x18\x07 \x01(\r\x12\x19\n\x11\x61\x63tivation_height\x18\x08 \x01(\r\x12\x19\n\x11\x65xpiration_height\x18\t \x01(\r\x12\x19\n\x11\x63laims_in_channel\x18\n \x01(\r\x12\x10\n\x08reposted\x18\x0b \x01(\r\x12\x18\n\x10\x65\x66\x66\x65\x63tive_amount\x18\x14 \x01(\x04\x12\x16\n\x0esupport_amount\x18\x15 \x01(\x04\x12\x16\n\x0etrending_score\x18\x16 \x01(\x01\"\x94\x01\n\x05\x45rror\x12\x1c\n\x04\x63ode\x18\x01 \x01(\x0e\x32\x0e.pb.Error.Code\x12\x0c\n\x04text\x18\x02 \x01(\t\x12\x1c\n\x07\x62locked\x18\x03 \x01(\x0b\x32\x0b.pb.Blocked\"A\n\x04\x43ode\x12\x10\n\x0cUNKNOWN_CODE\x10\x00\x12\r\n\tNOT_FOUND\x10\x01\x12\x0b\n\x07INVALID\x10\x02\x12\x0b\n\x07\x42LOCKED\x10\x03\"5\n\x07\x42locked\x12\r\n\x05\x63ount\x18\x01 \x01(\r\x12\x1b\n\x07\x63hannel\x18\x02 \x01(\x0b\x32\n.pb.OutputB&Z$github.com/lbryio/hub/protobuf/go/pbb\x06proto3'
)
_ERROR_CODE = _descriptor.EnumDescriptor(
name='Code',
full_name='pb.Error.Code',
filename=None,
file=DESCRIPTOR,
create_key=_descriptor._internal_create_key,
values=[
_descriptor.EnumValueDescriptor(
name='UNKNOWN_CODE', index=0, number=0,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
_descriptor.EnumValueDescriptor(
name='NOT_FOUND', index=1, number=1,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
_descriptor.EnumValueDescriptor(
name='INVALID', index=2, number=2,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
_descriptor.EnumValueDescriptor(
name='BLOCKED', index=3, number=3,
serialized_options=None,
type=None,
create_key=_descriptor._internal_create_key),
],
containing_type=None,
serialized_options=None,
serialized_start=744,
serialized_end=809,
)
_sym_db.RegisterEnumDescriptor(_ERROR_CODE)
_OUTPUTS = _descriptor.Descriptor(
name='Outputs',
full_name='pb.Outputs',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='txos', full_name='pb.Outputs.txos', index=0,
number=1, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='extra_txos', full_name='pb.Outputs.extra_txos', index=1,
number=2, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='total', full_name='pb.Outputs.total', index=2,
number=3, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='offset', full_name='pb.Outputs.offset', index=3,
number=4, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='blocked', full_name='pb.Outputs.blocked', index=4,
number=5, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='blocked_total', full_name='pb.Outputs.blocked_total', index=5,
number=6, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=21,
serialized_end=172,
)
_OUTPUT = _descriptor.Descriptor(
name='Output',
full_name='pb.Output',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='tx_hash', full_name='pb.Output.tx_hash', index=0,
number=1, type=12, cpp_type=9, label=1,
has_default_value=False, default_value=b"",
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='nout', full_name='pb.Output.nout', index=1,
number=2, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='height', full_name='pb.Output.height', index=2,
number=3, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='claim', full_name='pb.Output.claim', index=3,
number=7, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='error', full_name='pb.Output.error', index=4,
number=15, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
_descriptor.OneofDescriptor(
name='meta', full_name='pb.Output.meta',
index=0, containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[]),
],
serialized_start=174,
serialized_end=297,
)
_CLAIMMETA = _descriptor.Descriptor(
name='ClaimMeta',
full_name='pb.ClaimMeta',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='channel', full_name='pb.ClaimMeta.channel', index=0,
number=1, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='repost', full_name='pb.ClaimMeta.repost', index=1,
number=2, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='short_url', full_name='pb.ClaimMeta.short_url', index=2,
number=3, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='canonical_url', full_name='pb.ClaimMeta.canonical_url', index=3,
number=4, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='is_controlling', full_name='pb.ClaimMeta.is_controlling', index=4,
number=5, type=8, cpp_type=7, label=1,
has_default_value=False, default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='take_over_height', full_name='pb.ClaimMeta.take_over_height', index=5,
number=6, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='creation_height', full_name='pb.ClaimMeta.creation_height', index=6,
number=7, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='activation_height', full_name='pb.ClaimMeta.activation_height', index=7,
number=8, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='expiration_height', full_name='pb.ClaimMeta.expiration_height', index=8,
number=9, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='claims_in_channel', full_name='pb.ClaimMeta.claims_in_channel', index=9,
number=10, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='reposted', full_name='pb.ClaimMeta.reposted', index=10,
number=11, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='effective_amount', full_name='pb.ClaimMeta.effective_amount', index=11,
number=20, type=4, cpp_type=4, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='support_amount', full_name='pb.ClaimMeta.support_amount', index=12,
number=21, type=4, cpp_type=4, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='trending_score', full_name='pb.ClaimMeta.trending_score', index=13,
number=22, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=float(0),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=300,
serialized_end=658,
)
_ERROR = _descriptor.Descriptor(
name='Error',
full_name='pb.Error',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='code', full_name='pb.Error.code', index=0,
number=1, type=14, cpp_type=8, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='text', full_name='pb.Error.text', index=1,
number=2, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=b"".decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='blocked', full_name='pb.Error.blocked', index=2,
number=3, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
_ERROR_CODE,
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=661,
serialized_end=809,
)
_BLOCKED = _descriptor.Descriptor(
name='Blocked',
full_name='pb.Blocked',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='count', full_name='pb.Blocked.count', index=0,
number=1, type=13, cpp_type=3, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='channel', full_name='pb.Blocked.channel', index=1,
number=2, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR, create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=811,
serialized_end=864,
)
_OUTPUTS.fields_by_name['txos'].message_type = _OUTPUT
_OUTPUTS.fields_by_name['extra_txos'].message_type = _OUTPUT
_OUTPUTS.fields_by_name['blocked'].message_type = _BLOCKED
_OUTPUT.fields_by_name['claim'].message_type = _CLAIMMETA
_OUTPUT.fields_by_name['error'].message_type = _ERROR
_OUTPUT.oneofs_by_name['meta'].fields.append(
_OUTPUT.fields_by_name['claim'])
_OUTPUT.fields_by_name['claim'].containing_oneof = _OUTPUT.oneofs_by_name['meta']
_OUTPUT.oneofs_by_name['meta'].fields.append(
_OUTPUT.fields_by_name['error'])
_OUTPUT.fields_by_name['error'].containing_oneof = _OUTPUT.oneofs_by_name['meta']
_CLAIMMETA.fields_by_name['channel'].message_type = _OUTPUT
_CLAIMMETA.fields_by_name['repost'].message_type = _OUTPUT
_ERROR.fields_by_name['code'].enum_type = _ERROR_CODE
_ERROR.fields_by_name['blocked'].message_type = _BLOCKED
_ERROR_CODE.containing_type = _ERROR
_BLOCKED.fields_by_name['channel'].message_type = _OUTPUT
DESCRIPTOR.message_types_by_name['Outputs'] = _OUTPUTS
DESCRIPTOR.message_types_by_name['Output'] = _OUTPUT
DESCRIPTOR.message_types_by_name['ClaimMeta'] = _CLAIMMETA
DESCRIPTOR.message_types_by_name['Error'] = _ERROR
DESCRIPTOR.message_types_by_name['Blocked'] = _BLOCKED
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
Outputs = _reflection.GeneratedProtocolMessageType('Outputs', (_message.Message,), {
'DESCRIPTOR' : _OUTPUTS,
'__module__' : 'result_pb2'
# @@protoc_insertion_point(class_scope:pb.Outputs)
})
_sym_db.RegisterMessage(Outputs)
Output = _reflection.GeneratedProtocolMessageType('Output', (_message.Message,), {
'DESCRIPTOR' : _OUTPUT,
'__module__' : 'result_pb2'
# @@protoc_insertion_point(class_scope:pb.Output)
})
_sym_db.RegisterMessage(Output)
ClaimMeta = _reflection.GeneratedProtocolMessageType('ClaimMeta', (_message.Message,), {
'DESCRIPTOR' : _CLAIMMETA,
'__module__' : 'result_pb2'
# @@protoc_insertion_point(class_scope:pb.ClaimMeta)
})
_sym_db.RegisterMessage(ClaimMeta)
Error = _reflection.GeneratedProtocolMessageType('Error', (_message.Message,), {
'DESCRIPTOR' : _ERROR,
'__module__' : 'result_pb2'
# @@protoc_insertion_point(class_scope:pb.Error)
})
_sym_db.RegisterMessage(Error)
Blocked = _reflection.GeneratedProtocolMessageType('Blocked', (_message.Message,), {
'DESCRIPTOR' : _BLOCKED,
'__module__' : 'result_pb2'
# @@protoc_insertion_point(class_scope:pb.Blocked)
})
_sym_db.RegisterMessage(Blocked)
DESCRIPTOR._options = None
# @@protoc_insertion_point(module_scope)

4
scribe/schema/types/v2/result_pb2_grpc.py Normal file
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# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
"""Client and server classes corresponding to protobuf-defined services."""
import grpc

76
scribe/schema/types/v2/support_pb2.py Normal file
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# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: support.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
from google.protobuf import descriptor_pb2
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='support.proto',
package='pb',
syntax='proto3',
serialized_pb=_b('\n\rsupport.proto\x12\x02pb\")\n\x07Support\x12\r\n\x05\x65moji\x18\x01 \x01(\t\x12\x0f\n\x07\x63omment\x18\x02 \x01(\tb\x06proto3')
)
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
_SUPPORT = _descriptor.Descriptor(
name='Support',
full_name='pb.Support',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='emoji', full_name='pb.Support.emoji', index=0,
number=1, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='comment', full_name='pb.Support.comment', index=1,
number=2, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=21,
serialized_end=62,
)
DESCRIPTOR.message_types_by_name['Support'] = _SUPPORT
Support = _reflection.GeneratedProtocolMessageType('Support', (_message.Message,), dict(
DESCRIPTOR = _SUPPORT,
__module__ = 'support_pb2'
# @@protoc_insertion_point(class_scope:pb.Support)
))
_sym_db.RegisterMessage(Support)
# @@protoc_insertion_point(module_scope)

130
scribe/schema/url.py Normal file
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import re
import unicodedata
from typing import NamedTuple, Tuple
def _create_url_regex():
# see https://spec.lbry.com/ and test_url.py
invalid_names_regex = \
r"[^=&#:$@%?;\"/\\<>%{}|^~`\[\]" \
r"\u0000-\u0020\uD800-\uDFFF\uFFFE-\uFFFF]+"
def _named(name, regex):
return "(?P<" + name + ">" + regex + ")"
def _group(regex):
return "(?:" + regex + ")"
def _oneof(*choices):
return _group('|'.join(choices))
def _claim(name, prefix=""):
return _group(
_named(name+"_name", prefix + invalid_names_regex) +
_oneof(
_group('[:#]' + _named(name+"_claim_id", "[0-9a-f]{1,40}")),
_group(r'\$' + _named(name+"_amount_order", '[1-9][0-9]*'))
) + '?'
)
return (
'^' +
_named("scheme", "lbry://") + '?' +
_oneof(
_group(_claim("channel_with_stream", "@") + "/" + _claim("stream_in_channel")),
_claim("channel", "@"),
_claim("stream")
) +
'$'
)
URL_REGEX = _create_url_regex()
def normalize_name(name):
return unicodedata.normalize('NFD', name).casefold()
class PathSegment(NamedTuple):
name: str
claim_id: str = None
amount_order: int = None
@property
def normalized(self):
return normalize_name(self.name)
@property
def is_shortid(self):
return self.claim_id is not None and len(self.claim_id) < 40
@property
def is_fullid(self):
return self.claim_id is not None and len(self.claim_id) == 40
def to_dict(self):
q = {'name': self.name}
if self.claim_id is not None:
q['claim_id'] = self.claim_id
if self.amount_order is not None:
q['amount_order'] = self.amount_order
return q
def __str__(self):
if self.claim_id is not None:
return f"{self.name}:{self.claim_id}"
elif self.amount_order is not None:
return f"{self.name}${self.amount_order}"
return self.name
class URL(NamedTuple):
stream: PathSegment
channel: PathSegment
@property
def has_channel(self):
return self.channel is not None
@property
def has_stream(self):
return self.stream is not None
@property
def has_stream_in_channel(self):
return self.has_channel and self.has_stream
@property
def parts(self) -> Tuple:
if self.has_stream_in_channel:
return self.channel, self.stream
if self.has_channel:
return self.channel,
return self.stream,
def __str__(self):
return f"lbry://{'/'.join(str(p) for p in self.parts)}"
@classmethod
def parse(cls, url):
match = re.match(URL_REGEX, url)
if match is None:
raise ValueError('Invalid LBRY URL')
segments = {}
parts = match.groupdict()
for segment in ('channel', 'stream', 'channel_with_stream', 'stream_in_channel'):
if parts[f'{segment}_name'] is not None:
segments[segment] = PathSegment(
parts[f'{segment}_name'],
parts[f'{segment}_claim_id'],
parts[f'{segment}_amount_order']
)
if 'channel_with_stream' in segments:
segments['channel'] = segments['channel_with_stream']
segments['stream'] = segments['stream_in_channel']
return cls(segments.get('stream', None), segments.get('channel', None))

69
setup.py Normal file
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import os
from scribe import __name__, __version__
from setuptools import setup, find_packages
BASE = os.path.dirname(__file__)
with open(os.path.join(BASE, 'README.md'), encoding='utf-8') as fh:
long_description = fh.read()
setup(
name=__name__,
version=__version__,
author="LBRY Inc.",
author_email="hello@lbry.com",
url="https://lbry.com",
description="A decentralized media library and marketplace",
long_description=long_description,
long_description_content_type="text/markdown",
keywords="lbry protocol electrum spv",
license='MIT',
python_requires='>=3.7',
packages=find_packages(exclude=('tests',)),
zip_safe=False,
entry_points={
'console_scripts': [
'scribe=scribe.cli:run_writer_forever',
'scribe-hub=scribe.cli:run_server_forever',
'scribe-elastic-sync=scribe.cli:run_es_sync_forever',
],
},
install_requires=[
'aiohttp==3.5.4',
'certifi>=2018.11.29',
# 'colorama==0.3.7',
# 'distro==1.4.0',
'base58==1.0.0',
'cffi==1.13.2',
'cryptography==2.5',
'protobuf==3.17.2',
'msgpack==0.6.1',
'prometheus_client==0.7.1',
'ecdsa==0.13.3',
'pyyaml==5.3.1',
'prometheus_client==0.7.1',
'coincurve==15.0.0',
'pbkdf2==1.3',
'attrs==18.2.0',
'elasticsearch==7.10.1',
'lbry-rocksdb==0.8.2',
'uvloop'
],
extras_require={
'lint': ['pylint==2.10.0'],
'test': ['coverage'],
},
classifiers=[
'Framework :: AsyncIO',
'Intended Audience :: Developers',
'Intended Audience :: System Administrators',
'License :: OSI Approved :: MIT License',
'Programming Language :: Python :: 3',
'Operating System :: OS Independent',
'Topic :: Internet',
'Topic :: Software Development :: Testing',
'Topic :: Software Development :: Libraries :: Python Modules',
'Topic :: System :: Distributed Computing',
'Topic :: Utilities',
],
)

0
tests/__init__.py Normal file
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tests/test_resolve_command.py Normal file
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tests/test_revertable.py Normal file
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import unittest
import tempfile
import shutil
from scribe.db.revertable import RevertableOpStack, RevertableDelete, RevertablePut, OpStackIntegrity
from scribe.db.prefixes import ClaimToTXOPrefixRow, PrefixDB
class TestRevertableOpStack(unittest.TestCase):
def setUp(self):
self.fake_db = {}
self.stack = RevertableOpStack(self.fake_db.get)
def tearDown(self) -> None:
self.stack.clear()
self.fake_db.clear()
def process_stack(self):
for op in self.stack:
if op.is_put:
self.fake_db[op.key] = op.value
else:
self.fake_db.pop(op.key)
self.stack.clear()
def update(self, key1: bytes, value1: bytes, key2: bytes, value2: bytes):
self.stack.append_op(RevertableDelete(key1, value1))
self.stack.append_op(RevertablePut(key2, value2))
def test_simplify(self):
key1 = ClaimToTXOPrefixRow.pack_key(b'\x01' * 20)
key2 = ClaimToTXOPrefixRow.pack_key(b'\x02' * 20)
key3 = ClaimToTXOPrefixRow.pack_key(b'\x03' * 20)
key4 = ClaimToTXOPrefixRow.pack_key(b'\x04' * 20)
val1 = ClaimToTXOPrefixRow.pack_value(1, 0, 1, 0, 1, False, 'derp')
val2 = ClaimToTXOPrefixRow.pack_value(1, 0, 1, 0, 1, False, 'oops')
val3 = ClaimToTXOPrefixRow.pack_value(1, 0, 1, 0, 1, False, 'other')
# check that we can't delete a non existent value
with self.assertRaises(OpStackIntegrity):
self.stack.append_op(RevertableDelete(key1, val1))
self.stack.append_op(RevertablePut(key1, val1))
self.assertEqual(1, len(self.stack))
self.stack.append_op(RevertableDelete(key1, val1))
self.assertEqual(0, len(self.stack))
self.stack.append_op(RevertablePut(key1, val1))
self.assertEqual(1, len(self.stack))
# try to delete the wrong value
with self.assertRaises(OpStackIntegrity):
self.stack.append_op(RevertableDelete(key2, val2))
self.stack.append_op(RevertableDelete(key1, val1))
self.assertEqual(0, len(self.stack))
self.stack.append_op(RevertablePut(key2, val3))
self.assertEqual(1, len(self.stack))
self.process_stack()
self.assertDictEqual({key2: val3}, self.fake_db)
# check that we can't put on top of the existing stored value
with self.assertRaises(OpStackIntegrity):
self.stack.append_op(RevertablePut(key2, val1))
self.assertEqual(0, len(self.stack))
self.stack.append_op(RevertableDelete(key2, val3))
self.assertEqual(1, len(self.stack))
self.stack.append_op(RevertablePut(key2, val3))
self.assertEqual(0, len(self.stack))
self.update(key2, val3, key2, val1)
self.assertEqual(2, len(self.stack))
self.process_stack()
self.assertDictEqual({key2: val1}, self.fake_db)
self.update(key2, val1, key2, val2)
self.assertEqual(2, len(self.stack))
self.update(key2, val2, key2, val3)
self.update(key2, val3, key2, val2)
self.update(key2, val2, key2, val3)
self.update(key2, val3, key2, val2)
with self.assertRaises(OpStackIntegrity):
self.update(key2, val3, key2, val2)
self.update(key2, val2, key2, val3)
self.assertEqual(2, len(self.stack))
self.stack.append_op(RevertableDelete(key2, val3))
self.process_stack()
self.assertDictEqual({}, self.fake_db)
self.stack.append_op(RevertablePut(key2, val3))
self.process_stack()
with self.assertRaises(OpStackIntegrity):
self.update(key2, val2, key2, val2)
self.update(key2, val3, key2, val2)
self.assertDictEqual({key2: val3}, self.fake_db)
undo = self.stack.get_undo_ops()
self.process_stack()
self.assertDictEqual({key2: val2}, self.fake_db)
self.stack.apply_packed_undo_ops(undo)
self.process_stack()
self.assertDictEqual({key2: val3}, self.fake_db)
class TestRevertablePrefixDB(unittest.TestCase):
def setUp(self):
self.tmp_dir = tempfile.mkdtemp()
self.db = PrefixDB(self.tmp_dir, cache_mb=1, max_open_files=32)
def tearDown(self) -> None:
self.db.close()
shutil.rmtree(self.tmp_dir)
def test_rollback(self):
name = 'derp'
claim_hash1 = 20 * b'\x00'
claim_hash2 = 20 * b'\x01'
claim_hash3 = 20 * b'\x02'
takeover_height = 10000000
self.assertIsNone(self.db.claim_takeover.get(name))
self.db.claim_takeover.stage_put((name,), (claim_hash1, takeover_height))
self.assertIsNone(self.db.claim_takeover.get(name))
self.assertEqual(10000000, self.db.claim_takeover.get_pending(name).height)
self.db.commit(10000000, b'\x00' * 32)
self.assertEqual(10000000, self.db.claim_takeover.get(name).height)
self.db.claim_takeover.stage_delete((name,), (claim_hash1, takeover_height))
self.db.claim_takeover.stage_put((name,), (claim_hash2, takeover_height + 1))
self.db.claim_takeover.stage_delete((name,), (claim_hash2, takeover_height + 1))
self.db.commit(10000001, b'\x01' * 32)
self.assertIsNone(self.db.claim_takeover.get(name))
self.db.claim_takeover.stage_put((name,), (claim_hash3, takeover_height + 2))
self.db.commit(10000002, b'\x02' * 32)
self.assertEqual(10000002, self.db.claim_takeover.get(name).height)
self.db.claim_takeover.stage_delete((name,), (claim_hash3, takeover_height + 2))
self.db.claim_takeover.stage_put((name,), (claim_hash2, takeover_height + 3))
self.db.commit(10000003, b'\x03' * 32)
self.assertEqual(10000003, self.db.claim_takeover.get(name).height)
self.db.rollback(10000003, b'\x03' * 32)
self.assertEqual(10000002, self.db.claim_takeover.get(name).height)
self.db.rollback(10000002, b'\x02' * 32)
self.assertIsNone(self.db.claim_takeover.get(name))
self.db.rollback(10000001, b'\x01' * 32)
self.assertEqual(10000000, self.db.claim_takeover.get(name).height)
self.db.rollback(10000000, b'\x00' * 32)
self.assertIsNone(self.db.claim_takeover.get(name))
def test_hub_db_iterator(self):
name = 'derp'
claim_hash0 = 20 * b'\x00'
claim_hash1 = 20 * b'\x01'
claim_hash2 = 20 * b'\x02'
claim_hash3 = 20 * b'\x03'
overflow_value = 0xffffffff
self.db.claim_expiration.stage_put((99, 999, 0), (claim_hash0, name))
self.db.claim_expiration.stage_put((100, 1000, 0), (claim_hash1, name))
self.db.claim_expiration.stage_put((100, 1001, 0), (claim_hash2, name))
self.db.claim_expiration.stage_put((101, 1002, 0), (claim_hash3, name))
self.db.claim_expiration.stage_put((overflow_value - 1, 1003, 0), (claim_hash3, name))
self.db.claim_expiration.stage_put((overflow_value, 1004, 0), (claim_hash3, name))
self.db.tx_num.stage_put((b'\x00' * 32,), (101,))
self.db.claim_takeover.stage_put((name,), (claim_hash3, 101))
self.db.db_state.stage_put((), (b'n?\xcf\x12\x99\xd4\xec]y\xc3\xa4\xc9\x1dbJJ\xcf\x9e.\x17=\x95\xa1\xa0POgvihuV', 0, 1, b'VuhivgOP\xa0\xa1\x95=\x17.\x9e\xcfJJb\x1d\xc9\xa4\xc3y]\xec\xd4\x99\x12\xcf?n', 1, 0, 1, 7, 1, -1, -1, 0))
self.db.unsafe_commit()
state = self.db.db_state.get()
self.assertEqual(b'n?\xcf\x12\x99\xd4\xec]y\xc3\xa4\xc9\x1dbJJ\xcf\x9e.\x17=\x95\xa1\xa0POgvihuV', state.genesis)
self.assertListEqual(
[], list(self.db.claim_expiration.iterate(prefix=(98,)))
)
self.assertListEqual(
list(self.db.claim_expiration.iterate(start=(98,), stop=(99,))),
list(self.db.claim_expiration.iterate(prefix=(98,)))
)
self.assertListEqual(
list(self.db.claim_expiration.iterate(start=(99,), stop=(100,))),
list(self.db.claim_expiration.iterate(prefix=(99,)))
)
self.assertListEqual(
[
((99, 999, 0), (claim_hash0, name)),
], list(self.db.claim_expiration.iterate(prefix=(99,)))
)
self.assertListEqual(
[
((100, 1000, 0), (claim_hash1, name)),
((100, 1001, 0), (claim_hash2, name))
], list(self.db.claim_expiration.iterate(prefix=(100,)))
)
self.assertListEqual(
list(self.db.claim_expiration.iterate(start=(100,), stop=(101,))),
list(self.db.claim_expiration.iterate(prefix=(100,)))
)
self.assertListEqual(
[
((overflow_value - 1, 1003, 0), (claim_hash3, name))
], list(self.db.claim_expiration.iterate(prefix=(overflow_value - 1,)))
)
self.assertListEqual(
[
((overflow_value, 1004, 0), (claim_hash3, name))
], list(self.db.claim_expiration.iterate(prefix=(overflow_value,)))
)
def test_hub_db_iterator_start_stop(self):
tx_num = 101
for x in range(255):
claim_hash = 20 * chr(x).encode()
self.db.active_amount.stage_put((claim_hash, 1, 200, tx_num, 1), (100000,))
self.db.active_amount.stage_put((claim_hash, 1, 201, tx_num + 1, 1), (200000,))
self.db.active_amount.stage_put((claim_hash, 1, 202, tx_num + 2, 1), (300000,))
tx_num += 3
self.db.unsafe_commit()
def get_active_amount_as_of_height(claim_hash: bytes, height: int) -> int:
for v in self.db.active_amount.iterate(
start=(claim_hash, 1, 0), stop=(claim_hash, 1, height + 1),
include_key=False, reverse=True):
return v.amount
return 0
for x in range(255):
claim_hash = 20 * chr(x).encode()
self.assertEqual(300000, get_active_amount_as_of_height(claim_hash, 300))
self.assertEqual(300000, get_active_amount_as_of_height(claim_hash, 203))
self.assertEqual(300000, get_active_amount_as_of_height(claim_hash, 202))
self.assertEqual(200000, get_active_amount_as_of_height(claim_hash, 201))
self.assertEqual(100000, get_active_amount_as_of_height(claim_hash, 200))
self.assertEqual(0, get_active_amount_as_of_height(claim_hash, 199))

748
tests/testcase.py Normal file
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@ -0,0 +1,748 @@
import os
import sys
import json
import shutil
import logging
import tempfile
import functools
import asyncio
from asyncio.runners import _cancel_all_tasks # type: ignore
import unittest
from unittest.case import _Outcome
from typing import Optional
from time import time, perf_counter
from binascii import unhexlify
from functools import partial
from lbry.wallet import WalletManager, Wallet, Ledger, Account, Transaction
from lbry.conf import Config
from lbry.wallet.util import satoshis_to_coins
from lbry.wallet.dewies import lbc_to_dewies
from lbry.wallet.orchstr8 import Conductor
from lbry.wallet.orchstr8.node import LBCWalletNode, WalletNode, HubNode
from scribe.schema.claim import Claim
from lbry.extras.daemon.daemon import Daemon, jsonrpc_dumps_pretty
from lbry.extras.daemon.components import Component, WalletComponent
from lbry.extras.daemon.components import (
DHT_COMPONENT,
HASH_ANNOUNCER_COMPONENT, PEER_PROTOCOL_SERVER_COMPONENT,
UPNP_COMPONENT, EXCHANGE_RATE_MANAGER_COMPONENT, LIBTORRENT_COMPONENT
)
from lbry.extras.daemon.componentmanager import ComponentManager
from lbry.extras.daemon.exchange_rate_manager import (
ExchangeRateManager, ExchangeRate, BittrexBTCFeed, BittrexUSDFeed
)
from lbry.extras.daemon.storage import SQLiteStorage
from lbry.blob.blob_manager import BlobManager
from lbry.stream.reflector.server import ReflectorServer
from lbry.blob_exchange.server import BlobServer
class ColorHandler(logging.StreamHandler):
level_color = {
logging.DEBUG: "black",
logging.INFO: "light_gray",
logging.WARNING: "yellow",
logging.ERROR: "red"
}
color_code = dict(
black=30,
red=31,
green=32,
yellow=33,
blue=34,
magenta=35,
cyan=36,
white=37,
light_gray='0;37',
dark_gray='1;30'
)
def emit(self, record):
try:
msg = self.format(record)
color_name = self.level_color.get(record.levelno, "black")
color_code = self.color_code[color_name]
stream = self.stream
stream.write(f'\x1b[{color_code}m{msg}\x1b[0m')
stream.write(self.terminator)
self.flush()
except Exception:
self.handleError(record)
HANDLER = ColorHandler(sys.stdout)
HANDLER.setFormatter(
logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
)
logging.getLogger().addHandler(HANDLER)
class AsyncioTestCase(unittest.TestCase):
# Implementation inspired by discussion:
# https://bugs.python.org/issue32972
LOOP_SLOW_CALLBACK_DURATION = 0.2
TIMEOUT = 120.0
maxDiff = None
async def asyncSetUp(self): # pylint: disable=C0103
pass
async def asyncTearDown(self): # pylint: disable=C0103
pass
def run(self, result=None): # pylint: disable=R0915
orig_result = result
if result is None:
result = self.defaultTestResult()
startTestRun = getattr(result, 'startTestRun', None) # pylint: disable=C0103
if startTestRun is not None:
startTestRun()
result.startTest(self)
testMethod = getattr(self, self._testMethodName) # pylint: disable=C0103
if (getattr(self.__class__, "__unittest_skip__", False) or
getattr(testMethod, "__unittest_skip__", False)):
# If the class or method was skipped.
try:
skip_why = (getattr(self.__class__, '__unittest_skip_why__', '')
or getattr(testMethod, '__unittest_skip_why__', ''))
self._addSkip(result, self, skip_why)
finally:
result.stopTest(self)
return
expecting_failure_method = getattr(testMethod,
"__unittest_expecting_failure__", False)
expecting_failure_class = getattr(self,
"__unittest_expecting_failure__", False)
expecting_failure = expecting_failure_class or expecting_failure_method
outcome = _Outcome(result)
self.loop = asyncio.new_event_loop() # pylint: disable=W0201
asyncio.set_event_loop(self.loop)
self.loop.set_debug(True)
self.loop.slow_callback_duration = self.LOOP_SLOW_CALLBACK_DURATION
try:
self._outcome = outcome
with outcome.testPartExecutor(self):
self.setUp()
self.add_timeout()
self.loop.run_until_complete(self.asyncSetUp())
if outcome.success:
outcome.expecting_failure = expecting_failure
with outcome.testPartExecutor(self, isTest=True):
maybe_coroutine = testMethod()
if asyncio.iscoroutine(maybe_coroutine):
self.add_timeout()
self.loop.run_until_complete(maybe_coroutine)
outcome.expecting_failure = False
with outcome.testPartExecutor(self):
self.add_timeout()
self.loop.run_until_complete(self.asyncTearDown())
self.tearDown()
self.doAsyncCleanups()
try:
_cancel_all_tasks(self.loop)
self.loop.run_until_complete(self.loop.shutdown_asyncgens())
finally:
asyncio.set_event_loop(None)
self.loop.close()
for test, reason in outcome.skipped:
self._addSkip(result, test, reason)
self._feedErrorsToResult(result, outcome.errors)
if outcome.success:
if expecting_failure:
if outcome.expectedFailure:
self._addExpectedFailure(result, outcome.expectedFailure)
else:
self._addUnexpectedSuccess(result)
else:
result.addSuccess(self)
return result
finally:
result.stopTest(self)
if orig_result is None:
stopTestRun = getattr(result, 'stopTestRun', None) # pylint: disable=C0103
if stopTestRun is not None:
stopTestRun() # pylint: disable=E1102
# explicitly break reference cycles:
# outcome.errors -> frame -> outcome -> outcome.errors
# outcome.expectedFailure -> frame -> outcome -> outcome.expectedFailure
outcome.errors.clear()
outcome.expectedFailure = None
# clear the outcome, no more needed
self._outcome = None
def doAsyncCleanups(self): # pylint: disable=C0103
outcome = self._outcome or _Outcome()
while self._cleanups:
function, args, kwargs = self._cleanups.pop()
with outcome.testPartExecutor(self):
maybe_coroutine = function(*args, **kwargs)
if asyncio.iscoroutine(maybe_coroutine):
self.add_timeout()
self.loop.run_until_complete(maybe_coroutine)
def cancel(self):
for task in asyncio.all_tasks(self.loop):
if not task.done():
task.print_stack()
task.cancel()
def add_timeout(self):
if self.TIMEOUT:
self.loop.call_later(self.TIMEOUT, self.cancel)
class AdvanceTimeTestCase(AsyncioTestCase):
async def asyncSetUp(self):
self._time = 0 # pylint: disable=W0201
self.loop.time = functools.wraps(self.loop.time)(lambda: self._time)
await super().asyncSetUp()
async def advance(self, seconds):
while self.loop._ready:
await asyncio.sleep(0)
self._time += seconds
await asyncio.sleep(0)
while self.loop._ready:
await asyncio.sleep(0)
class IntegrationTestCase(AsyncioTestCase):
SEED = None
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.conductor: Optional[Conductor] = None
self.blockchain: Optional[LBCWalletNode] = None
self.hub: Optional[HubNode] = None
self.wallet_node: Optional[WalletNode] = None
self.manager: Optional[WalletManager] = None
self.ledger: Optional[Ledger] = None
self.wallet: Optional[Wallet] = None
self.account: Optional[Account] = None
async def asyncSetUp(self):
from time import perf_counter
start = perf_counter()
self.conductor = Conductor(seed=self.SEED)
await self.conductor.start_lbcd()
self.addCleanup(self.conductor.stop_lbcd)
print(f"{perf_counter() - start}s to start lbcd")
start = perf_counter()
await self.conductor.start_lbcwallet()
self.addCleanup(self.conductor.stop_lbcwallet)
print(f"{perf_counter() - start}s to start lbcwallet")
start = perf_counter()
await self.conductor.start_spv()
self.addCleanup(self.conductor.stop_spv)
print(f"{perf_counter() - start}s to start spv")
start = perf_counter()
await self.conductor.start_wallet()
self.addCleanup(self.conductor.stop_wallet)
print(f"{perf_counter() - start}s to start wallet")
start = perf_counter()
await self.conductor.start_hub()
self.addCleanup(self.conductor.stop_hub)
print(f"{perf_counter() - start}s to start go hub")
self.blockchain = self.conductor.lbcwallet_node
self.hub = self.conductor.hub_node
self.wallet_node = self.conductor.wallet_node
self.manager = self.wallet_node.manager
self.ledger = self.wallet_node.ledger
self.wallet = self.wallet_node.wallet
self.account = self.wallet_node.wallet.default_account
async def assertBalance(self, account, expected_balance: str): # pylint: disable=C0103
balance = await account.get_balance()
self.assertEqual(satoshis_to_coins(balance), expected_balance)
def broadcast(self, tx):
return self.ledger.broadcast(tx)
async def broadcast_and_confirm(self, tx, ledger=None):
ledger = ledger or self.ledger
notifications = asyncio.create_task(ledger.wait(tx))
await ledger.broadcast(tx)
await notifications
await self.generate_and_wait(1, [tx.id], ledger)
async def on_header(self, height):
if self.ledger.headers.height < height:
await self.ledger.on_header.where(
lambda e: e.height == height
)
return True
async def send_to_address_and_wait(self, address, amount, blocks_to_generate=0, ledger=None):
tx_watch = []
txid = None
done = False
watcher = (ledger or self.ledger).on_transaction.where(
lambda e: e.tx.id == txid or done or tx_watch.append(e.tx.id)
)
txid = await self.blockchain.send_to_address(address, amount)
done = txid in tx_watch
await watcher
await self.generate_and_wait(blocks_to_generate, [txid], ledger)
return txid
async def generate_and_wait(self, blocks_to_generate, txids, ledger=None):
if blocks_to_generate > 0:
watcher = (ledger or self.ledger).on_transaction.where(
lambda e: ((e.tx.id in txids and txids.remove(e.tx.id)), len(txids) <= 0)[-1] # multi-statement lambda
)
self.conductor.spv_node.server.synchronized.clear()
await self.blockchain.generate(blocks_to_generate)
height = self.blockchain.block_expected
await watcher
while True:
await self.conductor.spv_node.server.synchronized.wait()
self.conductor.spv_node.server.synchronized.clear()
if self.conductor.spv_node.server.db.db_height >= height:
break
def on_address_update(self, address):
return self.ledger.on_transaction.where(
lambda e: e.address == address
)
def on_transaction_address(self, tx, address):
return self.ledger.on_transaction.where(
lambda e: e.tx.id == tx.id and e.address == address
)
async def generate(self, blocks):
""" Ask lbrycrd to generate some blocks and wait until ledger has them. """
prepare = self.ledger.on_header.where(self.blockchain.is_expected_block)
height = self.blockchain.block_expected
self.conductor.spv_node.server.synchronized.clear()
await self.blockchain.generate(blocks)
await prepare # no guarantee that it didn't happen already, so start waiting from before calling generate
while True:
await self.conductor.spv_node.server.synchronized.wait()
self.conductor.spv_node.server.synchronized.clear()
if self.conductor.spv_node.server.db.db_height >= height:
break
class FakeExchangeRateManager(ExchangeRateManager):
def __init__(self, market_feeds, rates): # pylint: disable=super-init-not-called
self.market_feeds = market_feeds
for feed in self.market_feeds:
feed.last_check = time()
feed.rate = ExchangeRate(feed.market, rates[feed.market], time())
def start(self):
pass
def stop(self):
pass
def get_fake_exchange_rate_manager(rates=None):
return FakeExchangeRateManager(
[BittrexBTCFeed(), BittrexUSDFeed()],
rates or {'BTCLBC': 3.0, 'USDLBC': 2.0}
)
class ExchangeRateManagerComponent(Component):
component_name = EXCHANGE_RATE_MANAGER_COMPONENT
def __init__(self, component_manager, rates=None):
super().__init__(component_manager)
self.exchange_rate_manager = get_fake_exchange_rate_manager(rates)
@property
def component(self) -> ExchangeRateManager:
return self.exchange_rate_manager
async def start(self):
self.exchange_rate_manager.start()
async def stop(self):
self.exchange_rate_manager.stop()
class CommandTestCase(IntegrationTestCase):
VERBOSITY = logging.WARN
blob_lru_cache_size = 0
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.daemon = None
self.daemons = []
self.server_config = None
self.server_storage = None
self.extra_wallet_nodes = []
self.extra_wallet_node_port = 5280
self.server_blob_manager = None
self.server = None
self.reflector = None
self.skip_libtorrent = True
async def asyncSetUp(self):
start = perf_counter()
logging.getLogger('lbry.blob_exchange').setLevel(self.VERBOSITY)
logging.getLogger('lbry.daemon').setLevel(self.VERBOSITY)
logging.getLogger('lbry.stream').setLevel(self.VERBOSITY)
logging.getLogger('lbry.wallet').setLevel(self.VERBOSITY)
await super().asyncSetUp()
print("first setup", perf_counter() - start)
start = perf_counter()
self.daemon = await self.add_daemon(self.wallet_node)
await self.account.ensure_address_gap()
address = (await self.account.receiving.get_addresses(limit=1, only_usable=True))[0]
await self.send_to_address_and_wait(address, 10, 6)
print("sent to address and waited", perf_counter() - start)
server_tmp_dir = tempfile.mkdtemp()
self.addCleanup(shutil.rmtree, server_tmp_dir)
self.server_config = Config(
data_dir=server_tmp_dir,
wallet_dir=server_tmp_dir,
save_files=True,
download_dir=server_tmp_dir
)
self.server_config.transaction_cache_size = 10000
self.server_storage = SQLiteStorage(self.server_config, ':memory:')
await self.server_storage.open()
self.server_blob_manager = BlobManager(self.loop, server_tmp_dir, self.server_storage, self.server_config)
self.server = BlobServer(self.loop, self.server_blob_manager, 'bQEaw42GXsgCAGio1nxFncJSyRmnztSCjP')
self.server.start_server(5567, '127.0.0.1')
await self.server.started_listening.wait()
self.reflector = ReflectorServer(self.server_blob_manager)
self.reflector.start_server(5566, '127.0.0.1')
await self.reflector.started_listening.wait()
self.addCleanup(self.reflector.stop_server)
async def asyncTearDown(self):
await super().asyncTearDown()
for wallet_node in self.extra_wallet_nodes:
await wallet_node.stop(cleanup=True)
for daemon in self.daemons:
daemon.component_manager.get_component('wallet')._running = False
await daemon.stop()
async def add_daemon(self, wallet_node=None, seed=None):
start_wallet_node = False
if wallet_node is None:
wallet_node = WalletNode(
self.wallet_node.manager_class,
self.wallet_node.ledger_class,
port=self.extra_wallet_node_port
)
self.extra_wallet_node_port += 1
start_wallet_node = True
upload_dir = os.path.join(wallet_node.data_path, 'uploads')
os.mkdir(upload_dir)
conf = Config(
# needed during instantiation to access known_hubs path
data_dir=wallet_node.data_path,
wallet_dir=wallet_node.data_path,
save_files=True,
download_dir=wallet_node.data_path
)
conf.upload_dir = upload_dir # not a real conf setting
conf.share_usage_data = False
conf.use_upnp = False
conf.reflect_streams = True
conf.blockchain_name = 'lbrycrd_regtest'
conf.lbryum_servers = [(self.conductor.spv_node.hostname, self.conductor.spv_node.port)]
conf.reflector_servers = [('127.0.0.1', 5566)]
conf.fixed_peers = [('127.0.0.1', 5567)]
conf.known_dht_nodes = []
conf.blob_lru_cache_size = self.blob_lru_cache_size
conf.transaction_cache_size = 10000
conf.components_to_skip = [
DHT_COMPONENT, UPNP_COMPONENT, HASH_ANNOUNCER_COMPONENT,
PEER_PROTOCOL_SERVER_COMPONENT
]
if self.skip_libtorrent:
conf.components_to_skip.append(LIBTORRENT_COMPONENT)
if start_wallet_node:
await wallet_node.start(self.conductor.spv_node, seed=seed, config=conf)
self.extra_wallet_nodes.append(wallet_node)
else:
wallet_node.manager.config = conf
wallet_node.manager.ledger.config['known_hubs'] = conf.known_hubs
def wallet_maker(component_manager):
wallet_component = WalletComponent(component_manager)
wallet_component.wallet_manager = wallet_node.manager
wallet_component._running = True
return wallet_component
daemon = Daemon(conf, ComponentManager(
conf, skip_components=conf.components_to_skip, wallet=wallet_maker,
exchange_rate_manager=partial(ExchangeRateManagerComponent, rates={
'BTCLBC': 1.0, 'USDLBC': 2.0
})
))
await daemon.initialize()
self.daemons.append(daemon)
wallet_node.manager.old_db = daemon.storage
return daemon
async def confirm_tx(self, txid, ledger=None):
""" Wait for tx to be in mempool, then generate a block, wait for tx to be in a block. """
# await (ledger or self.ledger).on_transaction.where(lambda e: e.tx.id == txid)
on_tx = (ledger or self.ledger).on_transaction.where(lambda e: e.tx.id == txid)
await asyncio.wait([self.generate(1), on_tx], timeout=5)
# # actually, if it's in the mempool or in the block we're fine
# await self.generate_and_wait(1, [txid], ledger=ledger)
# return txid
return txid
async def on_transaction_dict(self, tx):
await self.ledger.wait(Transaction(unhexlify(tx['hex'])))
@staticmethod
def get_all_addresses(tx):
addresses = set()
for txi in tx['inputs']:
addresses.add(txi['address'])
for txo in tx['outputs']:
addresses.add(txo['address'])
return list(addresses)
async def blockchain_claim_name(self, name: str, value: str, amount: str, confirm=True):
txid = await self.blockchain._cli_cmnd('claimname', name, value, amount)
if confirm:
await self.generate(1)
return txid
async def blockchain_update_name(self, txid: str, value: str, amount: str, confirm=True):
txid = await self.blockchain._cli_cmnd('updateclaim', txid, value, amount)
if confirm:
await self.generate(1)
return txid
async def out(self, awaitable):
""" Serializes lbrynet API results to JSON then loads and returns it as dictionary. """
return json.loads(jsonrpc_dumps_pretty(await awaitable, ledger=self.ledger))['result']
def sout(self, value):
""" Synchronous version of `out` method. """
return json.loads(jsonrpc_dumps_pretty(value, ledger=self.ledger))['result']
async def confirm_and_render(self, awaitable, confirm, return_tx=False) -> Transaction:
tx = await awaitable
if confirm:
await self.ledger.wait(tx)
await self.generate(1)
await self.ledger.wait(tx, self.blockchain.block_expected)
if not return_tx:
return self.sout(tx)
return tx
async def create_nondeterministic_channel(self, name, price, pubkey_bytes, daemon=None, blocking=False):
account = (daemon or self.daemon).wallet_manager.default_account
claim_address = await account.receiving.get_or_create_usable_address()
claim = Claim()
claim.channel.public_key_bytes = pubkey_bytes
tx = await Transaction.claim_create(
name, claim, lbc_to_dewies(price),
claim_address, [self.account], self.account
)
await tx.sign([self.account])
await (daemon or self.daemon).broadcast_or_release(tx, blocking)
return self.sout(tx)
def create_upload_file(self, data, prefix=None, suffix=None):
file_path = tempfile.mktemp(prefix=prefix or "tmp", suffix=suffix or "", dir=self.daemon.conf.upload_dir)
with open(file_path, 'w+b') as file:
file.write(data)
file.flush()
return file.name
async def stream_create(
self, name='hovercraft', bid='1.0', file_path=None,
data=b'hi!', confirm=True, prefix=None, suffix=None, return_tx=False, **kwargs):
if file_path is None and data is not None:
file_path = self.create_upload_file(data=data, prefix=prefix, suffix=suffix)
return await self.confirm_and_render(
self.daemon.jsonrpc_stream_create(name, bid, file_path=file_path, **kwargs), confirm, return_tx
)
async def stream_update(
self, claim_id, data=None, prefix=None, suffix=None, confirm=True, return_tx=False, **kwargs):
if data is not None:
file_path = self.create_upload_file(data=data, prefix=prefix, suffix=suffix)
return await self.confirm_and_render(
self.daemon.jsonrpc_stream_update(claim_id, file_path=file_path, **kwargs), confirm, return_tx
)
return await self.confirm_and_render(
self.daemon.jsonrpc_stream_update(claim_id, **kwargs), confirm
)
async def stream_repost(self, claim_id, name='repost', bid='1.0', confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_stream_repost(claim_id=claim_id, name=name, bid=bid, **kwargs), confirm
)
async def stream_abandon(self, *args, confirm=True, **kwargs):
if 'blocking' not in kwargs:
kwargs['blocking'] = False
return await self.confirm_and_render(
self.daemon.jsonrpc_stream_abandon(*args, **kwargs), confirm
)
async def purchase_create(self, *args, confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_purchase_create(*args, **kwargs), confirm
)
async def publish(self, name, *args, confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_publish(name, *args, **kwargs), confirm
)
async def channel_create(self, name='@arena', bid='1.0', confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_channel_create(name, bid, **kwargs), confirm
)
async def channel_update(self, claim_id, confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_channel_update(claim_id, **kwargs), confirm
)
async def channel_abandon(self, *args, confirm=True, **kwargs):
if 'blocking' not in kwargs:
kwargs['blocking'] = False
return await self.confirm_and_render(
self.daemon.jsonrpc_channel_abandon(*args, **kwargs), confirm
)
async def collection_create(
self, name='firstcollection', bid='1.0', confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_collection_create(name, bid, **kwargs), confirm
)
async def collection_update(
self, claim_id, confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_collection_update(claim_id, **kwargs), confirm
)
async def collection_abandon(self, *args, confirm=True, **kwargs):
if 'blocking' not in kwargs:
kwargs['blocking'] = False
return await self.confirm_and_render(
self.daemon.jsonrpc_stream_abandon(*args, **kwargs), confirm
)
async def support_create(self, claim_id, bid='1.0', confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_support_create(claim_id, bid, **kwargs), confirm
)
async def support_abandon(self, *args, confirm=True, **kwargs):
if 'blocking' not in kwargs:
kwargs['blocking'] = False
return await self.confirm_and_render(
self.daemon.jsonrpc_support_abandon(*args, **kwargs), confirm
)
async def account_send(self, *args, confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_account_send(*args, **kwargs), confirm
)
async def wallet_send(self, *args, confirm=True, **kwargs):
return await self.confirm_and_render(
self.daemon.jsonrpc_wallet_send(*args, **kwargs), confirm
)
async def txo_spend(self, *args, confirm=True, **kwargs):
txs = await self.daemon.jsonrpc_txo_spend(*args, **kwargs)
if confirm:
await asyncio.wait([self.ledger.wait(tx) for tx in txs])
await self.generate(1)
await asyncio.wait([self.ledger.wait(tx, self.blockchain.block_expected) for tx in txs])
return self.sout(txs)
async def blob_clean(self):
return await self.out(self.daemon.jsonrpc_blob_clean())
async def status(self):
return await self.out(self.daemon.jsonrpc_status())
async def resolve(self, uri, **kwargs):
return (await self.out(self.daemon.jsonrpc_resolve(uri, **kwargs)))[uri]
async def claim_search(self, **kwargs):
return (await self.out(self.daemon.jsonrpc_claim_search(**kwargs)))['items']
async def get_claim_by_claim_id(self, claim_id):
return await self.out(self.ledger.get_claim_by_claim_id(claim_id))
async def file_list(self, *args, **kwargs):
return (await self.out(self.daemon.jsonrpc_file_list(*args, **kwargs)))['items']
async def txo_list(self, *args, **kwargs):
return (await self.out(self.daemon.jsonrpc_txo_list(*args, **kwargs)))['items']
async def txo_sum(self, *args, **kwargs):
return await self.out(self.daemon.jsonrpc_txo_sum(*args, **kwargs))
async def txo_plot(self, *args, **kwargs):
return await self.out(self.daemon.jsonrpc_txo_plot(*args, **kwargs))
async def claim_list(self, *args, **kwargs):
return (await self.out(self.daemon.jsonrpc_claim_list(*args, **kwargs)))['items']
async def stream_list(self, *args, **kwargs):
return (await self.out(self.daemon.jsonrpc_stream_list(*args, **kwargs)))['items']
async def channel_list(self, *args, **kwargs):
return (await self.out(self.daemon.jsonrpc_channel_list(*args, **kwargs)))['items']
async def transaction_list(self, *args, **kwargs):
return (await self.out(self.daemon.jsonrpc_transaction_list(*args, **kwargs)))['items']
async def blob_list(self, *args, **kwargs):
return (await self.out(self.daemon.jsonrpc_blob_list(*args, **kwargs)))['items']
@staticmethod
def get_claim_id(tx):
return tx['outputs'][0]['claim_id']
def assertItemCount(self, result, count): # pylint: disable=invalid-name
self.assertEqual(count, result['total_items'])