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lbry-sdk/lbrynet/daemon/Daemon.py

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Python
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# coding=utf-8
import binascii
import logging.handlers
import mimetypes
import os
import requests
import urllib
import json
import textwrap
from copy import deepcopy
from decimal import Decimal, InvalidOperation
from twisted.web import server
from twisted.internet import defer, reactor
from twisted.internet.task import LoopingCall
from twisted.python.failure import Failure
import lbryschema
from lbryschema.claim import ClaimDict
from lbryschema.uri import parse_lbry_uri
from lbryschema.error import URIParseError, DecodeError
from lbryschema.validator import validate_claim_id
from lbryschema.address import decode_address
from lbryschema.decode import smart_decode
# TODO: importing this when internet is disabled raises a socket.gaierror
from lbrynet.core.system_info import get_lbrynet_version
from lbrynet import conf
from lbrynet.reflector import reupload
from lbrynet.daemon.Components import WALLET_COMPONENT, DATABASE_COMPONENT, DHT_COMPONENT, BLOB_COMPONENT
from lbrynet.daemon.Components import STREAM_IDENTIFIER_COMPONENT, FILE_MANAGER_COMPONENT, RATE_LIMITER_COMPONENT
from lbrynet.daemon.Components import EXCHANGE_RATE_MANAGER_COMPONENT, PAYMENT_RATE_COMPONENT, UPNP_COMPONENT
from lbrynet.daemon.ComponentManager import RequiredCondition
from lbrynet.daemon.Downloader import GetStream
from lbrynet.daemon.Publisher import Publisher
from lbrynet.daemon.auth.server import AuthJSONRPCServer
from lbrynet.core import utils, system_info
from lbrynet.core.StreamDescriptor import download_sd_blob
from lbrynet.core.Error import InsufficientFundsError, UnknownNameError
from lbrynet.core.Error import DownloadDataTimeout, DownloadSDTimeout
from lbrynet.core.Error import NullFundsError, NegativeFundsError
from lbrynet.dht.error import TimeoutError
from lbrynet.core.Peer import Peer
from lbrynet.core.SinglePeerDownloader import SinglePeerDownloader
from lbrynet.core.client.StandaloneBlobDownloader import StandaloneBlobDownloader
log = logging.getLogger(__name__)
requires = AuthJSONRPCServer.requires
INITIALIZING_CODE = 'initializing'
# TODO: make this consistent with the stages in Downloader.py
DOWNLOAD_METADATA_CODE = 'downloading_metadata'
DOWNLOAD_TIMEOUT_CODE = 'timeout'
DOWNLOAD_RUNNING_CODE = 'running'
DOWNLOAD_STOPPED_CODE = 'stopped'
STREAM_STAGES = [
(INITIALIZING_CODE, 'Initializing'),
(DOWNLOAD_METADATA_CODE, 'Downloading metadata'),
(DOWNLOAD_RUNNING_CODE, 'Started %s, got %s/%s blobs, stream status: %s'),
(DOWNLOAD_STOPPED_CODE, 'Paused stream'),
(DOWNLOAD_TIMEOUT_CODE, 'Stream timed out')
]
CONNECTION_STATUS_CONNECTED = 'connected'
CONNECTION_STATUS_NETWORK = 'network_connection'
CONNECTION_MESSAGES = {
CONNECTION_STATUS_CONNECTED: 'No connection problems detected',
CONNECTION_STATUS_NETWORK: "Your internet connection appears to have been interrupted",
}
SHORT_ID_LEN = 20
MAX_UPDATE_FEE_ESTIMATE = 0.3
DIRECTION_ASCENDING = 'asc'
DIRECTION_DESCENDING = 'desc'
DIRECTIONS = DIRECTION_ASCENDING, DIRECTION_DESCENDING
class IterableContainer(object):
def __iter__(self):
for attr in dir(self):
if not attr.startswith("_"):
yield getattr(self, attr)
def __contains__(self, item):
for attr in self:
if item == attr:
return True
return False
class Checker(object):
"""The looping calls the daemon runs"""
INTERNET_CONNECTION = 'internet_connection_checker', 300
# CONNECTION_STATUS = 'connection_status_checker'
class _FileID(IterableContainer):
"""The different ways a file can be identified"""
SD_HASH = 'sd_hash'
FILE_NAME = 'file_name'
STREAM_HASH = 'stream_hash'
ROWID = "rowid"
CLAIM_ID = "claim_id"
OUTPOINT = "outpoint"
TXID = "txid"
NOUT = "nout"
CHANNEL_CLAIM_ID = "channel_claim_id"
CLAIM_NAME = "claim_name"
CHANNEL_NAME = "channel_name"
FileID = _FileID()
# TODO add login credentials in a conf file
# TODO alert if your copy of a lbry file is out of date with the name record
class NoValidSearch(Exception):
pass
class CheckInternetConnection(object):
def __init__(self, daemon):
self.daemon = daemon
def __call__(self):
self.daemon.connected_to_internet = utils.check_connection()
class AlwaysSend(object):
def __init__(self, value_generator, *args, **kwargs):
self.value_generator = value_generator
self.args = args
self.kwargs = kwargs
def __call__(self):
d = defer.maybeDeferred(self.value_generator, *self.args, **self.kwargs)
d.addCallback(lambda v: (True, v))
return d
def sort_claim_results(claims):
claims.sort(key=lambda d: (d['height'], d['name'], d['claim_id'], d['txid'], d['nout']))
return claims
def is_first_run():
if os.path.isfile(conf.settings.get_db_revision_filename()):
return False
if os.path.isfile(os.path.join(conf.settings['data_dir'], 'lbrynet.sqlite')):
return False
if os.path.isfile(os.path.join(conf.settings['lbryum_wallet_dir'], 'blockchain_headers')):
return False
return True
DHT_HAS_CONTACTS = "dht_has_contacts"
WALLET_IS_UNLOCKED = "wallet_is_unlocked"
class DHTHasContacts(RequiredCondition):
name = DHT_HAS_CONTACTS
component = DHT_COMPONENT
message = "your node is not connected to the dht"
@staticmethod
def evaluate(component):
return len(component.contacts) > 0
class WalletIsLocked(RequiredCondition):
name = WALLET_IS_UNLOCKED
component = WALLET_COMPONENT
message = "your wallet is locked"
@staticmethod
def evaluate(component):
return component.check_locked()
class Daemon(AuthJSONRPCServer):
"""
LBRYnet daemon, a jsonrpc interface to lbry functions
"""
component_attributes = {
DATABASE_COMPONENT: "storage",
DHT_COMPONENT: "dht_node",
WALLET_COMPONENT: "wallet",
STREAM_IDENTIFIER_COMPONENT: "sd_identifier",
FILE_MANAGER_COMPONENT: "file_manager",
EXCHANGE_RATE_MANAGER_COMPONENT: "exchange_rate_manager",
PAYMENT_RATE_COMPONENT: "payment_rate_manager",
RATE_LIMITER_COMPONENT: "rate_limiter",
BLOB_COMPONENT: "blob_manager",
UPNP_COMPONENT: "upnp"
}
def __init__(self, analytics_manager=None, component_manager=None):
to_skip = list(conf.settings['components_to_skip'])
if 'reflector' not in to_skip and not conf.settings['run_reflector_server']:
to_skip.append('reflector')
looping_calls = {
Checker.INTERNET_CONNECTION[0]: (LoopingCall(CheckInternetConnection(self)),
Checker.INTERNET_CONNECTION[1])
}
AuthJSONRPCServer.__init__(self, analytics_manager=analytics_manager, component_manager=component_manager,
use_authentication=conf.settings['use_auth_http'], to_skip=to_skip,
looping_calls=looping_calls)
self.is_first_run = is_first_run()
# TODO: move this to a component
self.connected_to_internet = True
self.connection_status_code = None
# components
# TODO: delete these, get the components where needed
self.storage = None
self.dht_node = None
self.wallet = None
self.sd_identifier = None
self.file_manager = None
self.exchange_rate_manager = None
self.payment_rate_manager = None
self.rate_limiter = None
self.blob_manager = None
self.upnp = None
# TODO: delete this
self.streams = {}
@defer.inlineCallbacks
def setup(self):
log.info("Starting lbrynet-daemon")
log.info("Platform: %s", json.dumps(system_info.get_platform()))
yield super(Daemon, self).setup()
log.info("Started lbrynet-daemon")
def _stop_streams(self):
"""stop pending GetStream downloads"""
for sd_hash, stream in self.streams.iteritems():
stream.cancel(reason="daemon shutdown")
def _shutdown(self):
self._stop_streams()
return super(Daemon, self)._shutdown()
def _download_blob(self, blob_hash, rate_manager=None, timeout=None):
"""
Download a blob
:param blob_hash (str): blob hash
:param rate_manager (PaymentRateManager), optional: the payment rate manager to use,
defaults to session.payment_rate_manager
:param timeout (int): blob timeout
:return: BlobFile
"""
if not blob_hash:
raise Exception("Nothing to download")
rate_manager = rate_manager or self.payment_rate_manager
timeout = timeout or 30
downloader = StandaloneBlobDownloader(
blob_hash, self.blob_manager, self.dht_node.peer_finder, self.rate_limiter,
rate_manager, self.wallet, timeout
)
return downloader.download()
@defer.inlineCallbacks
def _get_stream_analytics_report(self, claim_dict):
sd_hash = claim_dict.source_hash
try:
stream_hash = yield self.storage.get_stream_hash_for_sd_hash(sd_hash)
except Exception:
stream_hash = None
report = {
"sd_hash": sd_hash,
"stream_hash": stream_hash,
}
blobs = {}
try:
sd_host = yield self.blob_manager.get_host_downloaded_from(sd_hash)
except Exception:
sd_host = None
report["sd_blob"] = sd_host
if stream_hash:
blob_infos = yield self.storage.get_blobs_for_stream(stream_hash)
report["known_blobs"] = len(blob_infos)
else:
blob_infos = []
report["known_blobs"] = 0
# for blob_hash, blob_num, iv, length in blob_infos:
# try:
# host = yield self.session.blob_manager.get_host_downloaded_from(blob_hash)
# except Exception:
# host = None
# if host:
# blobs[blob_num] = host
# report["blobs"] = json.dumps(blobs)
defer.returnValue(report)
@defer.inlineCallbacks
def _download_name(self, name, claim_dict, sd_hash, txid, nout, timeout=None, file_name=None):
"""
Add a lbry file to the file manager, start the download, and return the new lbry file.
If it already exists in the file manager, return the existing lbry file
"""
@defer.inlineCallbacks
def _download_finished(download_id, name, claim_dict):
report = yield self._get_stream_analytics_report(claim_dict)
self.analytics_manager.send_download_finished(download_id, name, report, claim_dict)
@defer.inlineCallbacks
def _download_failed(error, download_id, name, claim_dict):
report = yield self._get_stream_analytics_report(claim_dict)
self.analytics_manager.send_download_errored(error, download_id, name, claim_dict,
report)
if sd_hash in self.streams:
downloader = self.streams[sd_hash]
result = yield downloader.finished_deferred
defer.returnValue(result)
else:
download_id = utils.random_string()
self.analytics_manager.send_download_started(download_id, name, claim_dict)
self.streams[sd_hash] = GetStream(
self.sd_identifier, self.wallet, self.exchange_rate_manager, self.blob_manager,
self.dht_node.peer_finder, self.rate_limiter, self.payment_rate_manager, self.storage,
conf.settings['max_key_fee'], conf.settings['disable_max_key_fee'], conf.settings['data_rate'],
timeout
)
try:
lbry_file, finished_deferred = yield self.streams[sd_hash].start(
claim_dict, name, txid, nout, file_name
)
finished_deferred.addCallbacks(
lambda _: _download_finished(download_id, name, claim_dict),
lambda e: _download_failed(e, download_id, name, claim_dict)
)
result = yield self._get_lbry_file_dict(lbry_file, full_status=True)
except Exception as err:
yield _download_failed(err, download_id, name, claim_dict)
if isinstance(err, (DownloadDataTimeout, DownloadSDTimeout)):
log.warning('Failed to get %s (%s)', name, err)
else:
log.error('Failed to get %s (%s)', name, err)
if self.streams[sd_hash].downloader and self.streams[sd_hash].code != 'running':
yield self.streams[sd_hash].downloader.stop(err)
result = {'error': err.message}
finally:
del self.streams[sd_hash]
defer.returnValue(result)
@defer.inlineCallbacks
def _publish_stream(self, name, bid, claim_dict, file_path=None, certificate_id=None,
claim_address=None, change_address=None):
publisher = Publisher(
self.blob_manager, self.payment_rate_manager, self.storage, self.file_manager, self.wallet, certificate_id
)
parse_lbry_uri(name)
if not file_path:
stream_hash = yield self.storage.get_stream_hash_for_sd_hash(
claim_dict['stream']['source']['source'])
claim_out = yield publisher.publish_stream(name, bid, claim_dict, stream_hash, claim_address,
change_address)
else:
claim_out = yield publisher.create_and_publish_stream(name, bid, claim_dict, file_path,
claim_address, change_address)
if conf.settings['reflect_uploads']:
d = reupload.reflect_file(publisher.lbry_file)
d.addCallbacks(lambda _: log.info("Reflected new publication to lbry://%s", name),
log.exception)
self.analytics_manager.send_claim_action('publish')
log.info("Success! Published to lbry://%s txid: %s nout: %d", name, claim_out['txid'],
claim_out['nout'])
defer.returnValue(claim_out)
@defer.inlineCallbacks
def _resolve_name(self, name, force_refresh=False):
"""Resolves a name. Checks the cache first before going out to the blockchain.
Args:
name: the lbry://<name> to resolve
force_refresh: if True, always go out to the blockchain to resolve.
"""
parsed = parse_lbry_uri(name)
resolution = yield self.wallet.resolve(parsed.name, check_cache=not force_refresh)
if parsed.name in resolution:
result = resolution[parsed.name]
defer.returnValue(result)
def _get_or_download_sd_blob(self, blob, sd_hash):
if blob:
return self.blob_manager.get_blob(blob[0])
return download_sd_blob(
sd_hash, self.blob_manager, self.dht_node.peer_finder, self.rate_limiter, self.payment_rate_manager,
self.wallet, timeout=conf.settings['search_timeout'], download_mirrors=conf.settings['download_mirrors']
)
def get_or_download_sd_blob(self, sd_hash):
"""Return previously downloaded sd blob if already in the blob
manager, otherwise download and return it
"""
d = self.blob_manager.completed_blobs([sd_hash])
d.addCallback(self._get_or_download_sd_blob, sd_hash)
return d
def get_size_from_sd_blob(self, sd_blob):
"""
Get total stream size in bytes from a sd blob
"""
d = self.sd_identifier.get_metadata_for_sd_blob(sd_blob)
d.addCallback(lambda metadata: metadata.validator.info_to_show())
d.addCallback(lambda info: int(dict(info)['stream_size']))
return d
def _get_est_cost_from_stream_size(self, size):
"""
Calculate estimated LBC cost for a stream given its size in bytes
"""
if self.payment_rate_manager.generous:
return 0.0
return size / (10 ** 6) * conf.settings['data_rate']
@defer.inlineCallbacks
def get_est_cost_using_known_size(self, uri, size):
"""
Calculate estimated LBC cost for a stream given its size in bytes
"""
cost = self._get_est_cost_from_stream_size(size)
resolved = yield self.wallet.resolve(uri)
if uri in resolved and 'claim' in resolved[uri]:
claim = ClaimDict.load_dict(resolved[uri]['claim']['value'])
final_fee = self._add_key_fee_to_est_data_cost(claim.source_fee, cost)
result = yield self._render_response(final_fee)
defer.returnValue(result)
else:
defer.returnValue(None)
def get_est_cost_from_sd_hash(self, sd_hash):
"""
Get estimated cost from a sd hash
"""
d = self.get_or_download_sd_blob(sd_hash)
d.addCallback(self.get_size_from_sd_blob)
d.addCallback(self._get_est_cost_from_stream_size)
return d
def _get_est_cost_from_metadata(self, metadata, name):
d = self.get_est_cost_from_sd_hash(metadata.source_hash)
def _handle_err(err):
if isinstance(err, Failure):
log.warning(
"Timeout getting blob for cost est for lbry://%s, using only key fee", name)
return 0.0
raise err
d.addErrback(_handle_err)
d.addCallback(lambda data_cost: self._add_key_fee_to_est_data_cost(metadata.source_fee,
data_cost))
return d
def _add_key_fee_to_est_data_cost(self, fee, data_cost):
fee_amount = 0.0 if not fee else self.exchange_rate_manager.convert_currency(fee.currency,
"LBC",
fee.amount)
return data_cost + fee_amount
@defer.inlineCallbacks
def get_est_cost_from_uri(self, uri):
"""
Resolve a name and return the estimated stream cost
"""
resolved = yield self.wallet.resolve(uri)
if resolved:
claim_response = resolved[uri]
else:
claim_response = None
result = None
if claim_response and 'claim' in claim_response:
if 'value' in claim_response['claim'] and claim_response['claim']['value'] is not None:
claim_value = ClaimDict.load_dict(claim_response['claim']['value'])
cost = yield self._get_est_cost_from_metadata(claim_value, uri)
result = round(cost, 5)
else:
log.warning("Failed to estimate cost for %s", uri)
defer.returnValue(result)
def get_est_cost(self, uri, size=None):
"""Get a cost estimate for a lbry stream, if size is not provided the
sd blob will be downloaded to determine the stream size
"""
if size is not None:
return self.get_est_cost_using_known_size(uri, size)
return self.get_est_cost_from_uri(uri)
@defer.inlineCallbacks
def _get_lbry_file_dict(self, lbry_file, full_status=False):
key = binascii.b2a_hex(lbry_file.key) if lbry_file.key else None
full_path = os.path.join(lbry_file.download_directory, lbry_file.file_name)
mime_type = mimetypes.guess_type(full_path)[0]
if os.path.isfile(full_path):
with open(full_path) as written_file:
written_file.seek(0, os.SEEK_END)
written_bytes = written_file.tell()
else:
written_bytes = 0
size = num_completed = num_known = status = None
if full_status:
size = yield lbry_file.get_total_bytes()
file_status = yield lbry_file.status()
num_completed = file_status.num_completed
num_known = file_status.num_known
status = file_status.running_status
result = {
'completed': lbry_file.completed,
'file_name': lbry_file.file_name,
'download_directory': lbry_file.download_directory,
'points_paid': lbry_file.points_paid,
'stopped': lbry_file.stopped,
'stream_hash': lbry_file.stream_hash,
'stream_name': lbry_file.stream_name,
'suggested_file_name': lbry_file.suggested_file_name,
'sd_hash': lbry_file.sd_hash,
'download_path': full_path,
'mime_type': mime_type,
'key': key,
'total_bytes': size,
'written_bytes': written_bytes,
'blobs_completed': num_completed,
'blobs_in_stream': num_known,
'status': status,
'claim_id': lbry_file.claim_id,
'txid': lbry_file.txid,
'nout': lbry_file.nout,
'outpoint': lbry_file.outpoint,
'metadata': lbry_file.metadata,
'channel_claim_id': lbry_file.channel_claim_id,
'channel_name': lbry_file.channel_name,
'claim_name': lbry_file.claim_name
}
defer.returnValue(result)
@defer.inlineCallbacks
def _get_lbry_file(self, search_by, val, return_json=False, full_status=False):
lbry_file = None
if search_by in FileID:
for l_f in self.file_manager.lbry_files:
if l_f.__dict__.get(search_by) == val:
lbry_file = l_f
break
else:
raise NoValidSearch('{} is not a valid search operation'.format(search_by))
if return_json and lbry_file:
lbry_file = yield self._get_lbry_file_dict(lbry_file, full_status=full_status)
defer.returnValue(lbry_file)
@defer.inlineCallbacks
def _get_lbry_files(self, return_json=False, full_status=True, **kwargs):
lbry_files = list(self.file_manager.lbry_files)
if kwargs:
for search_type, value in iter_lbry_file_search_values(kwargs):
lbry_files = [l_f for l_f in lbry_files if l_f.__dict__[search_type] == value]
if return_json:
file_dicts = []
for lbry_file in lbry_files:
lbry_file_dict = yield self._get_lbry_file_dict(lbry_file, full_status=full_status)
file_dicts.append(lbry_file_dict)
lbry_files = file_dicts
log.debug("Collected %i lbry files", len(lbry_files))
defer.returnValue(lbry_files)
def _sort_lbry_files(self, lbry_files, sort_by):
for field, direction in sort_by:
is_reverse = direction == DIRECTION_DESCENDING
key_getter = create_key_getter(field) if field else None
lbry_files = sorted(lbry_files, key=key_getter, reverse=is_reverse)
return lbry_files
def _parse_lbry_files_sort(self, sort):
"""
Given a sort string like 'file_name, desc' or 'points_paid',
parse the string into a tuple of (field, direction).
Direction defaults to ascending.
"""
pieces = [p.strip() for p in sort.split(',')]
field = pieces.pop(0)
direction = DIRECTION_ASCENDING
if pieces and pieces[0] in DIRECTIONS:
direction = pieces[0]
return field, direction
def _get_single_peer_downloader(self):
downloader = SinglePeerDownloader()
downloader.setup(self.wallet)
return downloader
@defer.inlineCallbacks
def _blob_availability(self, blob_hash, search_timeout, blob_timeout, downloader=None):
if not downloader:
downloader = self._get_single_peer_downloader()
result = {}
search_timeout = search_timeout or conf.settings['peer_search_timeout']
blob_timeout = blob_timeout or conf.settings['sd_download_timeout']
is_available = False
reachable_peers = []
unreachable_peers = []
try:
peers = yield self.jsonrpc_peer_list(blob_hash, search_timeout)
peer_infos = [{"peer": Peer(x[0], x[1]),
"blob_hash": blob_hash,
"timeout": blob_timeout} for x in peers if x[2]]
dl = []
dl_peers = []
dl_results = []
for peer_info in peer_infos:
d = downloader.download_temp_blob_from_peer(**peer_info)
dl.append(d)
dl_peers.append("%s:%i" % (peer_info['peer'].host, peer_info['peer'].port))
for dl_peer, (success, download_result) in zip(dl_peers,
(yield defer.DeferredList(dl))):
if success:
if download_result:
reachable_peers.append(dl_peer)
else:
unreachable_peers.append(dl_peer)
dl_results.append(download_result)
is_available = any(dl_results)
except Exception as err:
result['error'] = "Failed to get peers for blob: %s" % err
response = {
'is_available': is_available,
'reachable_peers': reachable_peers,
'unreachable_peers': unreachable_peers,
}
defer.returnValue(response)
############################################################################
# #
# JSON-RPC API methods start here #
# #
############################################################################
@defer.inlineCallbacks
def jsonrpc_status(self):
"""
Get daemon status
Usage:
status
Options:
None
Returns:
(dict) lbrynet-daemon status
{
'installation_id': (str) installation id - base58,
'is_running': (bool),
'is_first_run': bool,
'skipped_components': (list) [names of skipped components (str)],
'startup_status': { Does not include components which have been skipped
'database': (bool),
'wallet': (bool),
'session': (bool),
'dht': (bool),
'hash_announcer': (bool),
'stream_identifier': (bool),
'file_manager': (bool),
'blob_manager': (bool),
'blockchain_headers': (bool),
'peer_protocol_server': (bool),
'reflector': (bool),
'upnp': (bool),
'exchange_rate_manager': (bool),
},
'connection_status': {
'code': (str) connection status code,
'message': (str) connection status message
},
'blockchain_headers': {
'downloading_headers': (bool),
'download_progress': (float) 0-100.0
},
'wallet': {
'blocks': (int) local blockchain height,
'blocks_behind': (int) remote_height - local_height,
'best_blockhash': (str) block hash of most recent block,
'is_encrypted': (bool),
'is_locked': (bool),
},
'dht': {
'node_id': (str) lbry dht node id - hex encoded,
'peers_in_routing_table': (int) the number of peers in the routing table,
},
'blob_manager': {
'finished_blobs': (int) number of finished blobs in the blob manager,
},
'hash_announcer': {
'announce_queue_size': (int) number of blobs currently queued to be announced
},
'file_manager': {
'managed_files': (int) count of files in the file manager,
}
}
"""
connection_code = CONNECTION_STATUS_CONNECTED if self.connected_to_internet else CONNECTION_STATUS_NETWORK
response = {
'installation_id': conf.settings.installation_id,
'is_running': all(self.component_manager.get_components_status().values()),
'is_first_run': self.is_first_run,
'skipped_components': self.component_manager.skip_components,
'startup_status': self.component_manager.get_components_status(),
'connection_status': {
'code': connection_code,
'message': CONNECTION_MESSAGES[connection_code],
},
}
for component in self.component_manager.components:
status = yield defer.maybeDeferred(component.get_status)
if status:
response[component.component_name] = status
defer.returnValue(response)
def jsonrpc_version(self):
"""
Get lbry version information
Usage:
version
Options:
None
Returns:
(dict) Dictionary of lbry version information
{
'build': (str) build type (e.g. "dev", "rc", "release"),
'ip': (str) remote ip, if available,
'lbrynet_version': (str) lbrynet_version,
'lbryum_version': (str) lbryum_version,
'lbryschema_version': (str) lbryschema_version,
'os_release': (str) os release string
'os_system': (str) os name
'platform': (str) platform string
'processor': (str) processor type,
'python_version': (str) python version,
}
"""
platform_info = system_info.get_platform()
log.info("Get version info: " + json.dumps(platform_info))
return self._render_response(platform_info)
# @AuthJSONRPCServer.deprecated() # deprecated actually disables the call
def jsonrpc_report_bug(self, message=None):
"""
Report a bug to slack
Usage:
report_bug (<message> | --message=<message>)
Options:
--message=<message> : (str) Description of the bug
Returns:
(bool) true if successful
"""
platform_name = system_info.get_platform()['platform']
report_bug_to_slack(
message,
conf.settings.installation_id,
platform_name,
get_lbrynet_version()
)
return self._render_response(True)
def jsonrpc_settings_get(self):
"""
Get daemon settings
Usage:
settings_get
Options:
None
Returns:
(dict) Dictionary of daemon settings
See ADJUSTABLE_SETTINGS in lbrynet/conf.py for full list of settings
"""
return self._render_response(conf.settings.get_adjustable_settings_dict())
def jsonrpc_settings_set(self, **kwargs):
"""
Set daemon settings
Usage:
settings_set [--download_directory=<download_directory>]
[--data_rate=<data_rate>]
[--download_timeout=<download_timeout>]
[--peer_port=<peer_port>]
[--max_key_fee=<max_key_fee>]
[--disable_max_key_fee=<disable_max_key_fee>]
[--use_upnp=<use_upnp>]
[--run_reflector_server=<run_reflector_server>]
[--cache_time=<cache_time>]
[--reflect_uploads=<reflect_uploads>]
[--share_usage_data=<share_usage_data>]
[--peer_search_timeout=<peer_search_timeout>]
[--sd_download_timeout=<sd_download_timeout>]
[--auto_renew_claim_height_delta=<auto_renew_claim_height_delta>]
Options:
--download_directory=<download_directory> : (str) path of download directory
--data_rate=<data_rate> : (float) 0.0001
--download_timeout=<download_timeout> : (int) 180
--peer_port=<peer_port> : (int) 3333
--max_key_fee=<max_key_fee> : (dict) maximum key fee for downloads,
in the format:
{
'currency': <currency_symbol>,
'amount': <amount>
}.
In the CLI, it must be an escaped JSON string
Supported currency symbols: LBC, USD, BTC
--disable_max_key_fee=<disable_max_key_fee> : (bool) False
--use_upnp=<use_upnp> : (bool) True
--run_reflector_server=<run_reflector_server> : (bool) False
--cache_time=<cache_time> : (int) 150
--reflect_uploads=<reflect_uploads> : (bool) True
--share_usage_data=<share_usage_data> : (bool) True
--peer_search_timeout=<peer_search_timeout> : (int) 3
--sd_download_timeout=<sd_download_timeout> : (int) 3
--auto_renew_claim_height_delta=<auto_renew_claim_height_delta> : (int) 0
claims set to expire within this many blocks will be
automatically renewed after startup (if set to 0, renews
will not be made automatically)
Returns:
(dict) Updated dictionary of daemon settings
"""
# TODO: improve upon the current logic, it could be made better
new_settings = kwargs
setting_types = {
'download_directory': str,
'data_rate': float,
'download_timeout': int,
'peer_port': int,
'max_key_fee': dict,
'use_upnp': bool,
'run_reflector_server': bool,
'cache_time': int,
'reflect_uploads': bool,
'share_usage_data': bool,
'disable_max_key_fee': bool,
'peer_search_timeout': int,
'sd_download_timeout': int,
'auto_renew_claim_height_delta': int
}
for key, setting_type in setting_types.iteritems():
if key in new_settings:
if isinstance(new_settings[key], setting_type):
conf.settings.update({key: new_settings[key]},
data_types=(conf.TYPE_RUNTIME, conf.TYPE_PERSISTED))
elif setting_type is dict and isinstance(new_settings[key], (unicode, str)):
decoded = json.loads(str(new_settings[key]))
conf.settings.update({key: decoded},
data_types=(conf.TYPE_RUNTIME, conf.TYPE_PERSISTED))
else:
converted = setting_type(new_settings[key])
conf.settings.update({key: converted},
data_types=(conf.TYPE_RUNTIME, conf.TYPE_PERSISTED))
conf.settings.save_conf_file_settings()
return self._render_response(conf.settings.get_adjustable_settings_dict())
def jsonrpc_help(self, command=None):
"""
Return a useful message for an API command
Usage:
help [<command> | --command=<command>]
Options:
--command=<command> : (str) command to retrieve documentation for
Returns:
(str) Help message
"""
if command is None:
return self._render_response({
'about': 'This is the LBRY JSON-RPC API',
'command_help': 'Pass a `command` parameter to this method to see ' +
'help for that command (e.g. `help command=resolve_name`)',
'command_list': 'Get a full list of commands using the `commands` method',
'more_info': 'Visit https://lbry.io/api for more info',
})
fn = self.callable_methods.get(command)
if fn is None:
raise Exception(
"No help available for '{}'. It is not a valid command.".format(command)
)
return self._render_response({
'help': textwrap.dedent(fn.__doc__ or '')
})
def jsonrpc_commands(self):
"""
Return a list of available commands
Usage:
commands
Options:
None
Returns:
(list) list of available commands
"""
return self._render_response(sorted([command for command in self.callable_methods.keys()]))
@requires(WALLET_COMPONENT)
def jsonrpc_wallet_balance(self, address=None, include_unconfirmed=False):
"""
Return the balance of the wallet
Usage:
wallet_balance [<address> | --address=<address>] [--include_unconfirmed]
Options:
--address=<address> : (str) If provided only the balance for this
address will be given
--include_unconfirmed : (bool) Include unconfirmed
Returns:
(float) amount of lbry credits in wallet
"""
if address is None:
return self._render_response(float(self.wallet.get_balance()))
else:
return self._render_response(float(
self.wallet.get_address_balance(address, include_unconfirmed)))
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_wallet_unlock(self, password):
"""
Unlock an encrypted wallet
Usage:
wallet_unlock (<password> | --password=<password>)
Options:
--password=<password> : (str) password for unlocking wallet
Returns:
(bool) true if wallet is unlocked, otherwise false
"""
# the check_locked() in the if statement is needed because that is what sets
# the wallet_unlocked_d deferred ¯\_(ツ)_/¯
if not self.wallet.check_locked():
d = self.wallet.wallet_unlocked_d
d.callback(password)
result = yield d
else:
result = True
response = yield self._render_response(result)
defer.returnValue(response)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_wallet_decrypt(self):
"""
Decrypt an encrypted wallet, this will remove the wallet password
Usage:
wallet_decrypt
Options:
None
Returns:
(bool) true if wallet is decrypted, otherwise false
"""
result = self.wallet.decrypt_wallet()
response = yield self._render_response(result)
defer.returnValue(response)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_wallet_encrypt(self, new_password):
"""
Encrypt a wallet with a password, if the wallet is already encrypted this will update
the password
Usage:
wallet_encrypt (<new_password> | --new_password=<new_password>)
Options:
--new_password=<new_password> : (str) password string to be used for encrypting wallet
Returns:
(bool) true if wallet is decrypted, otherwise false
"""
self.wallet.encrypt_wallet(new_password)
response = yield self._render_response(self.wallet.wallet.use_encryption)
defer.returnValue(response)
@defer.inlineCallbacks
def jsonrpc_daemon_stop(self):
"""
Stop lbrynet-daemon
Usage:
daemon_stop
Options:
None
Returns:
(string) Shutdown message
"""
log.info("Shutting down lbrynet daemon")
response = yield self._render_response("Shutting down")
reactor.callLater(0.1, reactor.fireSystemEvent, "shutdown")
defer.returnValue(response)
@requires(FILE_MANAGER_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_file_list(self, sort=None, **kwargs):
"""
List files limited by optional filters
Usage:
file_list [--sd_hash=<sd_hash>] [--file_name=<file_name>] [--stream_hash=<stream_hash>]
[--rowid=<rowid>] [--claim_id=<claim_id>] [--outpoint=<outpoint>] [--txid=<txid>] [--nout=<nout>]
[--channel_claim_id=<channel_claim_id>] [--channel_name=<channel_name>]
[--claim_name=<claim_name>] [--full_status] [--sort=<sort_method>...]
Options:
--sd_hash=<sd_hash> : (str) get file with matching sd hash
--file_name=<file_name> : (str) get file with matching file name in the
downloads folder
--stream_hash=<stream_hash> : (str) get file with matching stream hash
--rowid=<rowid> : (int) get file with matching row id
--claim_id=<claim_id> : (str) get file with matching claim id
--outpoint=<outpoint> : (str) get file with matching claim outpoint
--txid=<txid> : (str) get file with matching claim txid
--nout=<nout> : (int) get file with matching claim nout
--channel_claim_id=<channel_claim_id> : (str) get file with matching channel claim id
--channel_name=<channel_name> : (str) get file with matching channel name
--claim_name=<claim_name> : (str) get file with matching claim name
--full_status : (bool) full status, populate the
'message' and 'size' fields
--sort=<sort_method> : (str) sort by any property, like 'file_name'
or 'metadata.author'; to specify direction
append ',asc' or ',desc'
Returns:
(list) List of files
[
{
'completed': (bool) true if download is completed,
'file_name': (str) name of file,
'download_directory': (str) download directory,
'points_paid': (float) credit paid to download file,
'stopped': (bool) true if download is stopped,
'stream_hash': (str) stream hash of file,
'stream_name': (str) stream name ,
'suggested_file_name': (str) suggested file name,
'sd_hash': (str) sd hash of file,
'download_path': (str) download path of file,
'mime_type': (str) mime type of file,
'key': (str) key attached to file,
'total_bytes': (int) file size in bytes, None if full_status is false,
'written_bytes': (int) written size in bytes,
'blobs_completed': (int) num_completed, None if full_status is false,
'blobs_in_stream': (int) None if full_status is false,
'status': (str) downloader status, None if full_status is false,
'claim_id': (str) None if full_status is false or if claim is not found,
'outpoint': (str) None if full_status is false or if claim is not found,
'txid': (str) None if full_status is false or if claim is not found,
'nout': (int) None if full_status is false or if claim is not found,
'metadata': (dict) None if full_status is false or if claim is not found,
'channel_claim_id': (str) None if full_status is false or if claim is not found or signed,
'channel_name': (str) None if full_status is false or if claim is not found or signed,
'claim_name': (str) None if full_status is false or if claim is not found
},
]
"""
result = yield self._get_lbry_files(return_json=True, **kwargs)
if sort:
sort_by = [self._parse_lbry_files_sort(s) for s in sort]
result = self._sort_lbry_files(result, sort_by)
response = yield self._render_response(result)
defer.returnValue(response)
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_resolve_name(self, name, force=False):
"""
Resolve stream info from a LBRY name
Usage:
resolve_name (<name> | --name=<name>) [--force]
Options:
--name=<name> : (str) the name to resolve
--force : (bool) force refresh and do not check cache
Returns:
(dict) Metadata dictionary from name claim, None if the name is not
resolvable
"""
try:
metadata = yield self._resolve_name(name, force_refresh=force)
except UnknownNameError:
log.info('Name %s is not known', name)
defer.returnValue(None)
else:
defer.returnValue(metadata)
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_claim_show(self, txid=None, nout=None, claim_id=None):
"""
Resolve claim info from txid/nout or with claim ID
Usage:
claim_show [<txid> | --txid=<txid>] [<nout> | --nout=<nout>]
[<claim_id> | --claim_id=<claim_id>]
Options:
--txid=<txid> : (str) look for claim with this txid, nout must
also be specified
--nout=<nout> : (int) look for claim with this nout, txid must
also be specified
--claim_id=<claim_id> : (str) look for claim with this claim id
Returns:
(dict) Dictionary containing claim info as below,
{
'txid': (str) txid of claim
'nout': (int) nout of claim
'amount': (float) amount of claim
'value': (str) value of claim
'height' : (int) height of claim takeover
'claim_id': (str) claim ID of claim
'supports': (list) list of supports associated with claim
}
if claim cannot be resolved, dictionary as below will be returned
{
'error': (str) reason for error
}
"""
if claim_id is not None and txid is None and nout is None:
claim_results = yield self.wallet.get_claim_by_claim_id(claim_id)
elif txid is not None and nout is not None and claim_id is None:
claim_results = yield self.wallet.get_claim_by_outpoint(txid, int(nout))
else:
raise Exception("Must specify either txid/nout, or claim_id")
response = yield self._render_response(claim_results)
defer.returnValue(response)
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_resolve(self, force=False, uri=None, uris=[]):
"""
Resolve given LBRY URIs
Usage:
resolve [--force] (<uri> | --uri=<uri>) [<uris>...]
Options:
--force : (bool) force refresh and ignore cache
--uri=<uri> : (str) uri to resolve
--uris=<uris> : (list) uris to resolve
Returns:
Dictionary of results, keyed by uri
'<uri>': {
If a resolution error occurs:
'error': Error message
If the uri resolves to a channel or a claim in a channel:
'certificate': {
'address': (str) claim address,
'amount': (float) claim amount,
'effective_amount': (float) claim amount including supports,
'claim_id': (str) claim id,
'claim_sequence': (int) claim sequence number,
'decoded_claim': (bool) whether or not the claim value was decoded,
'height': (int) claim height,
'depth': (int) claim depth,
'has_signature': (bool) included if decoded_claim
'name': (str) claim name,
'permanent_url': (str) permanent url of the certificate claim,
'supports: (list) list of supports [{'txid': (str) txid,
'nout': (int) nout,
'amount': (float) amount}],
'txid': (str) claim txid,
'nout': (str) claim nout,
'signature_is_valid': (bool), included if has_signature,
'value': ClaimDict if decoded, otherwise hex string
}
If the uri resolves to a channel:
'claims_in_channel': (int) number of claims in the channel,
If the uri resolves to a claim:
'claim': {
'address': (str) claim address,
'amount': (float) claim amount,
'effective_amount': (float) claim amount including supports,
'claim_id': (str) claim id,
'claim_sequence': (int) claim sequence number,
'decoded_claim': (bool) whether or not the claim value was decoded,
'height': (int) claim height,
'depth': (int) claim depth,
'has_signature': (bool) included if decoded_claim
'name': (str) claim name,
'permanent_url': (str) permanent url of the claim,
'channel_name': (str) channel name if claim is in a channel
'supports: (list) list of supports [{'txid': (str) txid,
'nout': (int) nout,
'amount': (float) amount}]
'txid': (str) claim txid,
'nout': (str) claim nout,
'signature_is_valid': (bool), included if has_signature,
'value': ClaimDict if decoded, otherwise hex string
}
}
"""
uris = tuple(uris)
if uri is not None:
uris += (uri,)
results = {}
valid_uris = tuple()
for u in uris:
try:
parse_lbry_uri(u)
valid_uris += (u,)
except URIParseError:
results[u] = {"error": "%s is not a valid uri" % u}
resolved = yield self.wallet.resolve(*valid_uris, check_cache=not force)
for resolved_uri in resolved:
results[resolved_uri] = resolved[resolved_uri]
response = yield self._render_response(results)
defer.returnValue(response)
@requires(STREAM_IDENTIFIER_COMPONENT, WALLET_COMPONENT, EXCHANGE_RATE_MANAGER_COMPONENT, BLOB_COMPONENT,
DHT_COMPONENT, RATE_LIMITER_COMPONENT, PAYMENT_RATE_COMPONENT, DATABASE_COMPONENT,
conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_get(self, uri, file_name=None, timeout=None):
"""
Download stream from a LBRY name.
Usage:
get <uri> [<file_name> | --file_name=<file_name>] [<timeout> | --timeout=<timeout>]
Options:
--uri=<uri> : (str) uri of the content to download
--file_name=<file_name> : (str) specified name for the downloaded file
--timeout=<timeout> : (int) download timeout in number of seconds
Returns:
(dict) Dictionary containing information about the stream
{
'completed': (bool) true if download is completed,
'file_name': (str) name of file,
'download_directory': (str) download directory,
'points_paid': (float) credit paid to download file,
'stopped': (bool) true if download is stopped,
'stream_hash': (str) stream hash of file,
'stream_name': (str) stream name ,
'suggested_file_name': (str) suggested file name,
'sd_hash': (str) sd hash of file,
'download_path': (str) download path of file,
'mime_type': (str) mime type of file,
'key': (str) key attached to file,
'total_bytes': (int) file size in bytes, None if full_status is false,
'written_bytes': (int) written size in bytes,
'blobs_completed': (int) num_completed, None if full_status is false,
'blobs_in_stream': (int) None if full_status is false,
'status': (str) downloader status, None if full_status is false,
'claim_id': (str) claim id,
'outpoint': (str) claim outpoint string,
'txid': (str) claim txid,
'nout': (int) claim nout,
'metadata': (dict) claim metadata,
'channel_claim_id': (str) None if claim is not signed
'channel_name': (str) None if claim is not signed
'claim_name': (str) claim name
}
"""
timeout = timeout if timeout is not None else conf.settings['download_timeout']
parsed_uri = parse_lbry_uri(uri)
if parsed_uri.is_channel and not parsed_uri.path:
raise Exception("cannot download a channel claim, specify a /path")
resolved_result = yield self.wallet.resolve(uri)
if resolved_result and uri in resolved_result:
resolved = resolved_result[uri]
else:
resolved = None
if not resolved or 'value' not in resolved:
if 'claim' not in resolved:
raise Exception(
"Failed to resolve stream at lbry://{}".format(uri.replace("lbry://", ""))
)
else:
resolved = resolved['claim']
txid, nout, name = resolved['txid'], resolved['nout'], resolved['name']
claim_dict = ClaimDict.load_dict(resolved['value'])
sd_hash = claim_dict.source_hash
if sd_hash in self.streams:
log.info("Already waiting on lbry://%s to start downloading", name)
yield self.streams[sd_hash].data_downloading_deferred
lbry_file = yield self._get_lbry_file(FileID.SD_HASH, sd_hash, return_json=False)
if lbry_file:
if not os.path.isfile(os.path.join(lbry_file.download_directory, lbry_file.file_name)):
log.info("Already have lbry file but missing file in %s, rebuilding it",
lbry_file.download_directory)
yield lbry_file.start()
else:
log.info('Already have a file for %s', name)
result = yield self._get_lbry_file_dict(lbry_file, full_status=True)
else:
result = yield self._download_name(name, claim_dict, sd_hash, txid, nout,
timeout=timeout, file_name=file_name)
response = yield self._render_response(result)
defer.returnValue(response)
@requires(FILE_MANAGER_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_file_set_status(self, status, **kwargs):
"""
Start or stop downloading a file
Usage:
file_set_status (<status> | --status=<status>) [--sd_hash=<sd_hash>]
[--file_name=<file_name>] [--stream_hash=<stream_hash>] [--rowid=<rowid>]
Options:
--status=<status> : (str) one of "start" or "stop"
--sd_hash=<sd_hash> : (str) set status of file with matching sd hash
--file_name=<file_name> : (str) set status of file with matching file name in the
downloads folder
--stream_hash=<stream_hash> : (str) set status of file with matching stream hash
--rowid=<rowid> : (int) set status of file with matching row id
Returns:
(str) Confirmation message
"""
if status not in ['start', 'stop']:
raise Exception('Status must be "start" or "stop".')
search_type, value = get_lbry_file_search_value(kwargs)
lbry_file = yield self._get_lbry_file(search_type, value, return_json=False)
if not lbry_file:
raise Exception('Unable to find a file for {}:{}'.format(search_type, value))
if status == 'start' and lbry_file.stopped or status == 'stop' and not lbry_file.stopped:
yield self.file_manager.toggle_lbry_file_running(lbry_file)
msg = "Started downloading file" if status == 'start' else "Stopped downloading file"
else:
msg = (
"File was already being downloaded" if status == 'start'
else "File was already stopped"
)
response = yield self._render_response(msg)
defer.returnValue(response)
@requires(FILE_MANAGER_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_file_delete(self, delete_from_download_dir=False, delete_all=False, **kwargs):
"""
Delete a LBRY file
Usage:
file_delete [--delete_from_download_dir] [--delete_all] [--sd_hash=<sd_hash>] [--file_name=<file_name>]
[--stream_hash=<stream_hash>] [--rowid=<rowid>] [--claim_id=<claim_id>] [--txid=<txid>]
[--nout=<nout>] [--claim_name=<claim_name>] [--channel_claim_id=<channel_claim_id>]
[--channel_name=<channel_name>]
Options:
--delete_from_download_dir : (bool) delete file from download directory,
instead of just deleting blobs
--delete_all : (bool) if there are multiple matching files,
allow the deletion of multiple files.
Otherwise do not delete anything.
--sd_hash=<sd_hash> : (str) delete by file sd hash
--file_name<file_name> : (str) delete by file name in downloads folder
--stream_hash=<stream_hash> : (str) delete by file stream hash
--rowid=<rowid> : (int) delete by file row id
--claim_id=<claim_id> : (str) delete by file claim id
--txid=<txid> : (str) delete by file claim txid
--nout=<nout> : (int) delete by file claim nout
--claim_name=<claim_name> : (str) delete by file claim name
--channel_claim_id=<channel_claim_id> : (str) delete by file channel claim id
--channel_name=<channel_name> : (str) delete by file channel claim name
Returns:
(bool) true if deletion was successful
"""
lbry_files = yield self._get_lbry_files(return_json=False, **kwargs)
if len(lbry_files) > 1:
if not delete_all:
log.warning("There are %i files to delete, use narrower filters to select one",
len(lbry_files))
response = yield self._render_response(False)
defer.returnValue(response)
else:
log.warning("Deleting %i files",
len(lbry_files))
if not lbry_files:
log.warning("There is no file to delete")
result = False
else:
for lbry_file in lbry_files:
file_name, stream_hash = lbry_file.file_name, lbry_file.stream_hash
if lbry_file.sd_hash in self.streams:
del self.streams[lbry_file.sd_hash]
yield self.file_manager.delete_lbry_file(lbry_file,
delete_file=delete_from_download_dir)
log.info("Deleted file: %s", file_name)
result = True
response = yield self._render_response(result)
defer.returnValue(response)
@requires(STREAM_IDENTIFIER_COMPONENT, WALLET_COMPONENT, EXCHANGE_RATE_MANAGER_COMPONENT, BLOB_COMPONENT,
DHT_COMPONENT, RATE_LIMITER_COMPONENT, PAYMENT_RATE_COMPONENT, DATABASE_COMPONENT,
conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_stream_cost_estimate(self, uri, size=None):
"""
Get estimated cost for a lbry stream
Usage:
stream_cost_estimate (<uri> | --uri=<uri>) [<size> | --size=<size>]
Options:
--uri=<uri> : (str) uri to use
--size=<size> : (float) stream size in bytes. if provided an sd blob won't be
downloaded.
Returns:
(float) Estimated cost in lbry credits, returns None if uri is not
resolvable
"""
cost = yield self.get_est_cost(uri, size)
defer.returnValue(cost)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_channel_new(self, channel_name, amount):
"""
Generate a publisher key and create a new '@' prefixed certificate claim
Usage:
channel_new (<channel_name> | --channel_name=<channel_name>)
(<amount> | --amount=<amount>)
Options:
--channel_name=<channel_name> : (str) name of the channel prefixed with '@'
--amount=<amount> : (float) bid amount on the channel
Returns:
(dict) Dictionary containing result of the claim
{
'tx' : (str) hex encoded transaction
'txid' : (str) txid of resulting claim
'nout' : (int) nout of the resulting claim
'fee' : (float) fee paid for the claim transaction
'claim_id' : (str) claim ID of the resulting claim
}
"""
try:
parsed = parse_lbry_uri(channel_name)
if not parsed.is_channel:
raise Exception("Cannot make a new channel for a non channel name")
if parsed.path:
raise Exception("Invalid channel uri")
except (TypeError, URIParseError):
raise Exception("Invalid channel name")
if amount <= 0:
raise Exception("Invalid amount")
yield self.wallet.update_balance()
if amount >= self.wallet.get_balance():
balance = yield self.wallet.get_max_usable_balance_for_claim(channel_name)
max_bid_amount = balance - MAX_UPDATE_FEE_ESTIMATE
if balance <= MAX_UPDATE_FEE_ESTIMATE:
raise InsufficientFundsError(
"Insufficient funds, please deposit additional LBC. Minimum additional LBC needed {}"
.format(MAX_UPDATE_FEE_ESTIMATE - balance))
elif amount > max_bid_amount:
raise InsufficientFundsError(
"Please wait for any pending bids to resolve or lower the bid value. "
"Currently the maximum amount you can specify for this channel is {}"
.format(max_bid_amount)
)
result = yield self.wallet.claim_new_channel(channel_name, amount)
self.analytics_manager.send_new_channel()
log.info("Claimed a new channel! Result: %s", result)
response = yield self._render_response(result)
defer.returnValue(response)
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_channel_list(self):
"""
Get certificate claim infos for channels that can be published to
Usage:
channel_list
Options:
None
Returns:
(list) ClaimDict, includes 'is_mine' field to indicate if the certificate claim
is in the wallet.
"""
result = yield self.wallet.channel_list()
response = yield self._render_response(result)
defer.returnValue(response)
@requires(WALLET_COMPONENT)
@AuthJSONRPCServer.deprecated("channel_list")
def jsonrpc_channel_list_mine(self):
"""
Get certificate claim infos for channels that can be published to (deprecated)
Usage:
channel_list_mine
Options:
None
Returns:
(list) ClaimDict
"""
return self.jsonrpc_channel_list()
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_channel_export(self, claim_id):
"""
Export serialized channel signing information for a given certificate claim id
Usage:
channel_export (<claim_id> | --claim_id=<claim_id>)
Options:
--claim_id=<claim_id> : (str) Claim ID to export information about
Returns:
(str) Serialized certificate information
"""
result = yield self.wallet.export_certificate_info(claim_id)
defer.returnValue(result)
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_channel_import(self, serialized_certificate_info):
"""
Import serialized channel signing information (to allow signing new claims to the channel)
Usage:
channel_import (<serialized_certificate_info> | --serialized_certificate_info=<serialized_certificate_info>)
Options:
--serialized_certificate_info=<serialized_certificate_info> : (str) certificate info
Returns:
(dict) Result dictionary
"""
result = yield self.wallet.import_certificate_info(serialized_certificate_info)
defer.returnValue(result)
@requires(WALLET_COMPONENT, FILE_MANAGER_COMPONENT, BLOB_COMPONENT, PAYMENT_RATE_COMPONENT, DATABASE_COMPONENT,
conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_publish(self, name, bid, metadata=None, file_path=None, fee=None, title=None,
description=None, author=None, language=None, license=None,
license_url=None, thumbnail=None, preview=None, nsfw=None, sources=None,
channel_name=None, channel_id=None,
claim_address=None, change_address=None):
"""
Make a new name claim and publish associated data to lbrynet,
update over existing claim if user already has a claim for name.
Fields required in the final Metadata are:
'title'
'description'
'author'
'language'
'license'
'nsfw'
Metadata can be set by either using the metadata argument or by setting individual arguments
fee, title, description, author, language, license, license_url, thumbnail, preview, nsfw,
or sources. Individual arguments will overwrite the fields specified in metadata argument.
Usage:
publish (<name> | --name=<name>) (<bid> | --bid=<bid>) [--metadata=<metadata>]
[--file_path=<file_path>] [--fee=<fee>] [--title=<title>]
[--description=<description>] [--author=<author>] [--language=<language>]
[--license=<license>] [--license_url=<license_url>] [--thumbnail=<thumbnail>]
[--preview=<preview>] [--nsfw=<nsfw>] [--sources=<sources>]
[--channel_name=<channel_name>] [--channel_id=<channel_id>]
[--claim_address=<claim_address>] [--change_address=<change_address>]
Options:
--name=<name> : (str) name of the content
--bid=<bid> : (decimal) amount to back the claim
--metadata=<metadata> : (dict) ClaimDict to associate with the claim.
--file_path=<file_path> : (str) path to file to be associated with name. If provided,
a lbry stream of this file will be used in 'sources'.
If no path is given but a sources dict is provided,
it will be used. If neither are provided, an
error is raised.
--fee=<fee> : (dict) Dictionary representing key fee to download content:
{
'currency': currency_symbol,
'amount': decimal,
'address': str, optional
}
supported currencies: LBC, USD, BTC
If an address is not provided a new one will be
automatically generated. Default fee is zero.
--title=<title> : (str) title of the publication
--description=<description> : (str) description of the publication
--author=<author> : (str) author of the publication
--language=<language> : (str) language of the publication
--license=<license> : (str) publication license
--license_url=<license_url> : (str) publication license url
--thumbnail=<thumbnail> : (str) thumbnail url
--preview=<preview> : (str) preview url
--nsfw=<nsfw> : (bool) whether the content is nsfw
--sources=<sources> : (str) {'lbry_sd_hash': sd_hash} specifies sd hash of file
--channel_name=<channel_name> : (str) name of the publisher channel name in the wallet
--channel_id=<channel_id> : (str) claim id of the publisher channel, does not check
for channel claim being in the wallet. This allows
publishing to a channel where only the certificate
private key is in the wallet.
--claim_address=<claim_address> : (str) address where the claim is sent to, if not specified
new address wil automatically be created
Returns:
(dict) Dictionary containing result of the claim
{
'tx' : (str) hex encoded transaction
'txid' : (str) txid of resulting claim
'nout' : (int) nout of the resulting claim
'fee' : (decimal) fee paid for the claim transaction
'claim_id' : (str) claim ID of the resulting claim
}
"""
try:
parse_lbry_uri(name)
except (TypeError, URIParseError):
raise Exception("Invalid name given to publish")
try:
bid = Decimal(str(bid))
except InvalidOperation:
raise TypeError("Bid does not represent a valid decimal.")
if bid <= 0.0:
raise ValueError("Bid value must be greater than 0.0")
for address in [claim_address, change_address]:
if address is not None:
# raises an error if the address is invalid
decode_address(address)
yield self.wallet.update_balance()
if bid >= self.wallet.get_balance():
balance = yield self.wallet.get_max_usable_balance_for_claim(name)
max_bid_amount = balance - MAX_UPDATE_FEE_ESTIMATE
if balance <= MAX_UPDATE_FEE_ESTIMATE:
raise InsufficientFundsError(
"Insufficient funds, please deposit additional LBC. Minimum additional LBC needed {}"
.format(MAX_UPDATE_FEE_ESTIMATE - balance))
elif bid > max_bid_amount:
raise InsufficientFundsError(
"Please lower the bid value, the maximum amount you can specify for this claim is {}."
.format(max_bid_amount))
metadata = metadata or {}
if fee is not None:
metadata['fee'] = fee
if title is not None:
metadata['title'] = title
if description is not None:
metadata['description'] = description
if author is not None:
metadata['author'] = author
if language is not None:
metadata['language'] = language
if license is not None:
metadata['license'] = license
if license_url is not None:
metadata['licenseUrl'] = license_url
if thumbnail is not None:
metadata['thumbnail'] = thumbnail
if preview is not None:
metadata['preview'] = preview
if nsfw is not None:
metadata['nsfw'] = bool(nsfw)
metadata['version'] = '_0_1_0'
# check for original deprecated format {'currency':{'address','amount'}}
# add address, version to fee if unspecified
if 'fee' in metadata:
if len(metadata['fee'].keys()) == 1 and isinstance(metadata['fee'].values()[0], dict):
raise Exception('Old format for fee no longer supported. '
'Fee must be specified as {"currency":,"address":,"amount":}')
if 'amount' in metadata['fee'] and 'currency' in metadata['fee']:
if not metadata['fee']['amount']:
log.warning("Stripping empty fee from published metadata")
del metadata['fee']
elif 'address' not in metadata['fee']:
address = yield self.wallet.get_least_used_address()
metadata['fee']['address'] = address
if 'fee' in metadata and 'version' not in metadata['fee']:
metadata['fee']['version'] = '_0_0_1'
claim_dict = {
'version': '_0_0_1',
'claimType': 'streamType',
'stream': {
'metadata': metadata,
'version': '_0_0_1'
}
}
# this will be used to verify the format with lbryschema
claim_copy = deepcopy(claim_dict)
if sources is not None:
claim_dict['stream']['source'] = sources
claim_copy['stream']['source'] = sources
elif file_path is not None:
if not os.path.isfile(file_path):
raise Exception("invalid file path to publish")
# since the file hasn't yet been made into a stream, we don't have
# a valid Source for the claim when validating the format, we'll use a fake one
claim_copy['stream']['source'] = {
'version': '_0_0_1',
'sourceType': 'lbry_sd_hash',
'source': '0' * 96,
'contentType': ''
}
else:
# there is no existing source to use, and a file was not provided to make a new one
raise Exception("no source provided to publish")
try:
ClaimDict.load_dict(claim_copy)
# the metadata to use in the claim can be serialized by lbryschema
except DecodeError as err:
# there was a problem with a metadata field, raise an error here rather than
# waiting to find out when we go to publish the claim (after having made the stream)
raise Exception("invalid publish metadata: %s" % err.message)
log.info("Publish: %s", {
'name': name,
'file_path': file_path,
'bid': bid,
'claim_address': claim_address,
'change_address': change_address,
'claim_dict': claim_dict,
'channel_id': channel_id,
'channel_name': channel_name
})
if channel_id:
certificate_id = channel_id
elif channel_name:
certificate_id = None
my_certificates = yield self.wallet.channel_list()
for certificate in my_certificates:
if channel_name == certificate['name']:
certificate_id = certificate['claim_id']
break
if not certificate_id:
raise Exception("Cannot publish using channel %s" % channel_name)
else:
certificate_id = None
result = yield self._publish_stream(name, bid, claim_dict, file_path, certificate_id,
claim_address, change_address)
response = yield self._render_response(result)
defer.returnValue(response)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_claim_abandon(self, claim_id=None, txid=None, nout=None):
"""
Abandon a name and reclaim credits from the claim
Usage:
claim_abandon [<claim_id> | --claim_id=<claim_id>]
[<txid> | --txid=<txid>] [<nout> | --nout=<nout>]
Options:
--claim_id=<claim_id> : (str) claim_id of the claim to abandon
--txid=<txid> : (str) txid of the claim to abandon
--nout=<nout> : (int) nout of the claim to abandon
Returns:
(dict) Dictionary containing result of the claim
{
txid : (str) txid of resulting transaction
fee : (float) fee paid for the transaction
}
"""
if claim_id is None and txid is None and nout is None:
raise Exception('Must specify claim_id, or txid and nout')
if txid is None and nout is not None:
raise Exception('Must specify txid')
if nout is None and txid is not None:
raise Exception('Must specify nout')
result = yield self.wallet.abandon_claim(claim_id, txid, nout)
self.analytics_manager.send_claim_action('abandon')
defer.returnValue(result)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_claim_new_support(self, name, claim_id, amount):
"""
Support a name claim
Usage:
claim_new_support (<name> | --name=<name>) (<claim_id> | --claim_id=<claim_id>)
(<amount> | --amount=<amount>)
Options:
--name=<name> : (str) name of the claim to support
--claim_id=<claim_id> : (str) claim_id of the claim to support
--amount=<amount> : (float) amount of support
Returns:
(dict) Dictionary containing result of the claim
{
txid : (str) txid of resulting support claim
nout : (int) nout of the resulting support claim
fee : (float) fee paid for the transaction
}
"""
result = yield self.wallet.support_claim(name, claim_id, amount)
self.analytics_manager.send_claim_action('new_support')
defer.returnValue(result)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_claim_renew(self, outpoint=None, height=None):
"""
Renew claim(s) or support(s)
Usage:
claim_renew (<outpoint> | --outpoint=<outpoint>) | (<height> | --height=<height>)
Options:
--outpoint=<outpoint> : (str) outpoint of the claim to renew
--height=<height> : (str) update claims expiring before or at this block height
Returns:
(dict) Dictionary where key is the the original claim's outpoint and
value is the result of the renewal
{
outpoint:{
'tx' : (str) hex encoded transaction
'txid' : (str) txid of resulting claim
'nout' : (int) nout of the resulting claim
'fee' : (float) fee paid for the claim transaction
'claim_id' : (str) claim ID of the resulting claim
},
}
"""
if outpoint is None and height is None:
raise Exception("must provide an outpoint or a height")
elif outpoint is not None:
if len(outpoint.split(":")) == 2:
txid, nout = outpoint.split(":")
nout = int(nout)
else:
raise Exception("invalid outpoint")
result = yield self.wallet.claim_renew(txid, nout)
result = {outpoint: result}
else:
height = int(height)
result = yield self.wallet.claim_renew_all_before_expiration(height)
defer.returnValue(result)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_claim_send_to_address(self, claim_id, address, amount=None):
"""
Send a name claim to an address
Usage:
claim_send_to_address (<claim_id> | --claim_id=<claim_id>)
(<address> | --address=<address>)
[<amount> | --amount=<amount>]
Options:
--claim_id=<claim_id> : (str) claim_id to send
--address=<address> : (str) address to send the claim to
--amount<amount> : (int) Amount of credits to claim name for, defaults to the current amount
on the claim
Returns:
(dict) Dictionary containing result of the claim
{
'tx' : (str) hex encoded transaction
'txid' : (str) txid of resulting claim
'nout' : (int) nout of the resulting claim
'fee' : (float) fee paid for the claim transaction
'claim_id' : (str) claim ID of the resulting claim
}
"""
result = yield self.wallet.send_claim_to_address(claim_id, address, amount)
response = yield self._render_response(result)
defer.returnValue(response)
# TODO: claim_list_mine should be merged into claim_list, but idk how to authenticate it -Grin
@requires(WALLET_COMPONENT)
def jsonrpc_claim_list_mine(self):
"""
List my name claims
Usage:
claim_list_mine
Options:
None
Returns:
(list) List of name claims owned by user
[
{
'address': (str) address that owns the claim
'amount': (float) amount assigned to the claim
'blocks_to_expiration': (int) number of blocks until it expires
'category': (str) "claim", "update" , or "support"
'claim_id': (str) claim ID of the claim
'confirmations': (int) number of blocks of confirmations for the claim
'expiration_height': (int) the block height which the claim will expire
'expired': (bool) true if expired, false otherwise
'height': (int) height of the block containing the claim
'is_spent': (bool) true if claim is abandoned, false otherwise
'name': (str) name of the claim
'permanent_url': (str) permanent url of the claim,
'txid': (str) txid of the claim
'nout': (int) nout of the claim
'value': (str) value of the claim
},
]
"""
d = self.wallet.get_name_claims()
d.addCallback(lambda claims: self._render_response(claims))
return d
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_claim_list(self, name):
"""
List current claims and information about them for a given name
Usage:
claim_list (<name> | --name=<name>)
Options:
--name=<name> : (str) name of the claim to list info about
Returns:
(dict) State of claims assigned for the name
{
'claims': (list) list of claims for the name
[
{
'amount': (float) amount assigned to the claim
'effective_amount': (float) total amount assigned to the claim,
including supports
'claim_id': (str) claim ID of the claim
'height': (int) height of block containing the claim
'txid': (str) txid of the claim
'nout': (int) nout of the claim
'permanent_url': (str) permanent url of the claim,
'supports': (list) a list of supports attached to the claim
'value': (str) the value of the claim
},
]
'supports_without_claims': (list) supports without any claims attached to them
'last_takeover_height': (int) the height of last takeover for the name
}
"""
claims = yield self.wallet.get_claims_for_name(name) # type: dict
sort_claim_results(claims['claims'])
defer.returnValue(claims)
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_claim_list_by_channel(self, page=0, page_size=10, uri=None, uris=[]):
"""
Get paginated claims in a channel specified by a channel uri
Usage:
claim_list_by_channel (<uri> | --uri=<uri>) [<uris>...] [--page=<page>]
[--page_size=<page_size>]
Options:
--uri=<uri> : (str) uri of the channel
--uris=<uris> : (list) uris of the channel
--page=<page> : (int) which page of results to return where page 1 is the first
page, defaults to no pages
--page_size=<page_size> : (int) number of results in a page, default of 10
Returns:
{
resolved channel uri: {
If there was an error:
'error': (str) error message
'claims_in_channel': the total number of results for the channel,
If a page of results was requested:
'returned_page': page number returned,
'claims_in_channel': [
{
'absolute_channel_position': (int) claim index number in sorted list of
claims which assert to be part of the
channel
'address': (str) claim address,
'amount': (float) claim amount,
'effective_amount': (float) claim amount including supports,
'claim_id': (str) claim id,
'claim_sequence': (int) claim sequence number,
'decoded_claim': (bool) whether or not the claim value was decoded,
'height': (int) claim height,
'depth': (int) claim depth,
'has_signature': (bool) included if decoded_claim
'name': (str) claim name,
'supports: (list) list of supports [{'txid': (str) txid,
'nout': (int) nout,
'amount': (float) amount}],
'txid': (str) claim txid,
'nout': (str) claim nout,
'signature_is_valid': (bool), included if has_signature,
'value': ClaimDict if decoded, otherwise hex string
}
],
}
}
"""
uris = tuple(uris)
if uri is not None:
uris += (uri,)
results = {}
valid_uris = tuple()
for chan_uri in uris:
try:
parsed = parse_lbry_uri(chan_uri)
if not parsed.is_channel:
results[chan_uri] = {"error": "%s is not a channel uri" % parsed.name}
elif parsed.path:
results[chan_uri] = {"error": "%s is a claim in a channel" % parsed.path}
else:
valid_uris += (chan_uri,)
except URIParseError:
results[chan_uri] = {"error": "%s is not a valid uri" % chan_uri}
resolved = yield self.wallet.resolve(*valid_uris, check_cache=False, page=page,
page_size=page_size)
for u in resolved:
if 'error' in resolved[u]:
results[u] = resolved[u]
else:
results[u] = {
'claims_in_channel': resolved[u]['claims_in_channel']
}
if page:
results[u]['returned_page'] = page
results[u]['claims_in_channel'] = resolved[u].get('claims_in_channel', [])
response = yield self._render_response(results)
defer.returnValue(response)
@requires(WALLET_COMPONENT)
def jsonrpc_transaction_list(self):
"""
List transactions belonging to wallet
Usage:
transaction_list
Options:
None
Returns:
(list) List of transactions
{
"claim_info": (list) claim info if in txn [{
"address": (str) address of claim,
"balance_delta": (float) bid amount,
"amount": (float) claim amount,
"claim_id": (str) claim id,
"claim_name": (str) claim name,
"nout": (int) nout
}],
"abandon_info": (list) abandon info if in txn [{
"address": (str) address of abandoned claim,
"balance_delta": (float) returned amount,
"amount": (float) claim amount,
"claim_id": (str) claim id,
"claim_name": (str) claim name,
"nout": (int) nout
}],
"confirmations": (int) number of confirmations for the txn,
"date": (str) date and time of txn,
"fee": (float) txn fee,
"support_info": (list) support info if in txn [{
"address": (str) address of support,
"balance_delta": (float) support amount,
"amount": (float) support amount,
"claim_id": (str) claim id,
"claim_name": (str) claim name,
"is_tip": (bool),
"nout": (int) nout
}],
"timestamp": (int) timestamp,
"txid": (str) txn id,
"update_info": (list) update info if in txn [{
"address": (str) address of claim,
"balance_delta": (float) credited/debited
"amount": (float) absolute amount,
"claim_id": (str) claim id,
"claim_name": (str) claim name,
"nout": (int) nout
}],
"value": (float) value of txn
}
"""
d = self.wallet.get_history()
d.addCallback(lambda r: self._render_response(r))
return d
@requires(WALLET_COMPONENT)
def jsonrpc_transaction_show(self, txid):
"""
Get a decoded transaction from a txid
Usage:
transaction_show (<txid> | --txid=<txid>)
Options:
--txid=<txid> : (str) txid of the transaction
Returns:
(dict) JSON formatted transaction
"""
d = self.wallet.get_transaction(txid)
d.addCallback(lambda r: self._render_response(r))
return d
@requires(WALLET_COMPONENT)
def jsonrpc_wallet_is_address_mine(self, address):
"""
Checks if an address is associated with the current wallet.
Usage:
wallet_is_address_mine (<address> | --address=<address>)
Options:
--address=<address> : (str) address to check
Returns:
(bool) true, if address is associated with current wallet
"""
d = self.wallet.address_is_mine(address)
d.addCallback(lambda is_mine: self._render_response(is_mine))
return d
@requires(WALLET_COMPONENT)
def jsonrpc_wallet_public_key(self, address):
"""
Get public key from wallet address
Usage:
wallet_public_key (<address> | --address=<address>)
Options:
--address=<address> : (str) address for which to get the public key
Returns:
(list) list of public keys associated with address.
Could contain more than one public key if multisig.
"""
d = self.wallet.get_pub_keys(address)
d.addCallback(lambda r: self._render_response(r))
return d
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_wallet_list(self):
"""
List wallet addresses
Usage:
wallet_list
Options:
None
Returns:
List of wallet addresses
"""
addresses = yield self.wallet.list_addresses()
response = yield self._render_response(addresses)
defer.returnValue(response)
@requires(WALLET_COMPONENT)
def jsonrpc_wallet_new_address(self):
"""
Generate a new wallet address
Usage:
wallet_new_address
Options:
None
Returns:
(str) New wallet address in base58
"""
def _disp(address):
log.info("Got new wallet address: " + address)
return defer.succeed(address)
d = self.wallet.get_new_address()
d.addCallback(_disp)
d.addCallback(lambda address: self._render_response(address))
return d
@requires(WALLET_COMPONENT)
def jsonrpc_wallet_unused_address(self):
"""
Return an address containing no balance, will create
a new address if there is none.
Usage:
wallet_unused_address
Options:
None
Returns:
(str) Unused wallet address in base58
"""
def _disp(address):
log.info("Got unused wallet address: " + address)
return defer.succeed(address)
d = self.wallet.get_unused_address()
d.addCallback(_disp)
d.addCallback(lambda address: self._render_response(address))
return d
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@AuthJSONRPCServer.deprecated("wallet_send")
@defer.inlineCallbacks
def jsonrpc_send_amount_to_address(self, amount, address):
"""
Queue a payment of credits to an address
Usage:
send_amount_to_address (<amount> | --amount=<amount>) (<address> | --address=<address>)
Options:
--amount=<amount> : (float) amount to send
--address=<address> : (str) address to send credits to
Returns:
(bool) true if payment successfully scheduled
"""
if amount < 0:
raise NegativeFundsError()
elif not amount:
raise NullFundsError()
reserved_points = self.wallet.reserve_points(address, amount)
if reserved_points is None:
raise InsufficientFundsError()
yield self.wallet.send_points_to_address(reserved_points, amount)
self.analytics_manager.send_credits_sent()
defer.returnValue(True)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_wallet_send(self, amount, address=None, claim_id=None):
"""
Send credits. If given an address, send credits to it. If given a claim id, send a tip
to the owner of a claim specified by uri. A tip is a claim support where the recipient
of the support is the claim address for the claim being supported.
Usage:
wallet_send (<amount> | --amount=<amount>)
((<address> | --address=<address>) | (<claim_id> | --claim_id=<claim_id>))
Options:
--amount=<amount> : (Decimal) amount of credit to send
--address=<address> : (str) address to send credits to
--claim_id=<claim_id> : (str) claim_id of the claim to send to tip to
Returns:
If sending to an address:
(bool) true if payment successfully scheduled
If sending a claim tip:
(dict) Dictionary containing the result of the support
{
txid : (str) txid of resulting support claim
nout : (int) nout of the resulting support claim
fee : (float) fee paid for the transaction
}
"""
if address and claim_id:
raise Exception("Given both an address and a claim id")
elif not address and not claim_id:
raise Exception("Not given an address or a claim id")
try:
amount = Decimal(str(amount))
except InvalidOperation:
raise TypeError("Amount does not represent a valid decimal.")
if amount < 0:
raise NegativeFundsError()
elif not amount:
raise NullFundsError()
if address:
# raises an error if the address is invalid
decode_address(address)
result = yield self.jsonrpc_send_amount_to_address(amount, address)
else:
validate_claim_id(claim_id)
result = yield self.wallet.tip_claim(claim_id, amount)
self.analytics_manager.send_claim_action('new_support')
defer.returnValue(result)
@requires(WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_wallet_prefill_addresses(self, num_addresses, amount, no_broadcast=False):
"""
Create new addresses, each containing `amount` credits
Usage:
wallet_prefill_addresses [--no_broadcast]
(<num_addresses> | --num_addresses=<num_addresses>)
(<amount> | --amount=<amount>)
Options:
--no_broadcast : (bool) whether to broadcast or not
--num_addresses=<num_addresses> : (int) num of addresses to create
--amount=<amount> : (float) initial amount in each address
Returns:
(dict) the resulting transaction
"""
if amount < 0:
raise NegativeFundsError()
elif not amount:
raise NullFundsError()
broadcast = not no_broadcast
tx = yield self.wallet.create_addresses_with_balance(
num_addresses, amount, broadcast=broadcast)
tx['broadcast'] = broadcast
defer.returnValue(tx)
@requires(WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_utxo_list(self):
"""
List unspent transaction outputs
Usage:
utxo_list
Options:
None
Returns:
(list) List of unspent transaction outputs (UTXOs)
[
{
"address": (str) the output address
"amount": (float) unspent amount
"height": (int) block height
"is_claim": (bool) is the tx a claim
"is_coinbase": (bool) is the tx a coinbase tx
"is_support": (bool) is the tx a support
"is_update": (bool) is the tx an update
"nout": (int) nout of the output
"txid": (str) txid of the output
},
...
]
"""
unspent = yield self.wallet.list_unspent()
for i, utxo in enumerate(unspent):
utxo['txid'] = utxo.pop('prevout_hash')
utxo['nout'] = utxo.pop('prevout_n')
utxo['amount'] = utxo.pop('value')
utxo['is_coinbase'] = utxo.pop('coinbase')
unspent[i] = utxo
defer.returnValue(unspent)
@requires(WALLET_COMPONENT)
def jsonrpc_block_show(self, blockhash=None, height=None):
"""
Get contents of a block
Usage:
block_show (<blockhash> | --blockhash=<blockhash>) | (<height> | --height=<height>)
Options:
--blockhash=<blockhash> : (str) hash of the block to look up
--height=<height> : (int) height of the block to look up
Returns:
(dict) Requested block
"""
if blockhash is not None:
d = self.wallet.get_block(blockhash)
elif height is not None:
d = self.wallet.get_block_info(height)
d.addCallback(lambda b: self.wallet.get_block(b))
else:
# TODO: return a useful error message
return server.failure
d.addCallback(lambda r: self._render_response(r))
return d
@requires(WALLET_COMPONENT, DHT_COMPONENT, BLOB_COMPONENT, RATE_LIMITER_COMPONENT, PAYMENT_RATE_COMPONENT,
conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_blob_get(self, blob_hash, timeout=None, encoding=None, payment_rate_manager=None):
"""
Download and return a blob
Usage:
blob_get (<blob_hash> | --blob_hash=<blob_hash>) [--timeout=<timeout>]
[--encoding=<encoding>] [--payment_rate_manager=<payment_rate_manager>]
Options:
--blob_hash=<blob_hash> : (str) blob hash of the blob to get
--timeout=<timeout> : (int) timeout in number of seconds
--encoding=<encoding> : (str) by default no attempt at decoding
is made, can be set to one of the
following decoders:
'json'
--payment_rate_manager=<payment_rate_manager> : (str) if not given the default payment rate
manager will be used.
supported alternative rate managers:
'only-free'
Returns:
(str) Success/Fail message or (dict) decoded data
"""
decoders = {
'json': json.loads
}
timeout = timeout or 30
blob = yield self._download_blob(blob_hash, rate_manager=self.payment_rate_manager, timeout=timeout)
if encoding and encoding in decoders:
blob_file = blob.open_for_reading()
result = decoders[encoding](blob_file.read())
blob_file.close()
else:
result = "Downloaded blob %s" % blob_hash
response = yield self._render_response(result)
defer.returnValue(response)
@requires(BLOB_COMPONENT, DATABASE_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_blob_delete(self, blob_hash):
"""
Delete a blob
Usage:
blob_delete (<blob_hash> | --blob_hash=<blob_hash)
Options:
--blob_hash=<blob_hash> : (str) blob hash of the blob to delete
Returns:
(str) Success/fail message
"""
if blob_hash not in self.blob_manager.blobs:
response = yield self._render_response("Don't have that blob")
defer.returnValue(response)
try:
stream_hash = yield self.storage.get_stream_hash_for_sd_hash(blob_hash)
yield self.storage.delete_stream(stream_hash)
except Exception as err:
pass
yield self.blob_manager.delete_blobs([blob_hash])
response = yield self._render_response("Deleted %s" % blob_hash)
defer.returnValue(response)
@requires(DHT_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_peer_list(self, blob_hash, timeout=None):
"""
Get peers for blob hash
Usage:
peer_list (<blob_hash> | --blob_hash=<blob_hash>) [<timeout> | --timeout=<timeout>]
Options:
--blob_hash=<blob_hash> : (str) find available peers for this blob hash
--timeout=<timeout> : (int) peer search timeout in seconds
Returns:
(list) List of contact dictionaries {'host': <peer ip>, 'port': <peer port>, 'node_id': <peer node id>}
"""
if not utils.is_valid_blobhash(blob_hash):
raise Exception("invalid blob hash")
finished_deferred = self.dht_node.iterativeFindValue(binascii.unhexlify(blob_hash))
def trap_timeout(err):
err.trap(defer.TimeoutError)
return []
finished_deferred.addTimeout(timeout or conf.settings['peer_search_timeout'], self.dht_node.clock)
finished_deferred.addErrback(trap_timeout)
peers = yield finished_deferred
results = [
{
"node_id": node_id.encode('hex'),
"host": host,
"port": port
}
for node_id, host, port in peers
]
defer.returnValue(results)
@requires(DATABASE_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_blob_announce(self, blob_hash=None, stream_hash=None, sd_hash=None):
"""
Announce blobs to the DHT
Usage:
blob_announce [<blob_hash> | --blob_hash=<blob_hash>]
[<stream_hash> | --stream_hash=<stream_hash>] | [<sd_hash> | --sd_hash=<sd_hash>]
Options:
--blob_hash=<blob_hash> : (str) announce a blob, specified by blob_hash
--stream_hash=<stream_hash> : (str) announce all blobs associated with
stream_hash
--sd_hash=<sd_hash> : (str) announce all blobs associated with
sd_hash and the sd_hash itself
Returns:
(bool) true if successful
"""
blob_hashes = []
if blob_hash:
blob_hashes.append(blob_hash)
elif stream_hash or sd_hash:
if sd_hash and stream_hash:
raise Exception("either the sd hash or the stream hash should be provided, not both")
if sd_hash:
stream_hash = yield self.storage.get_stream_hash_for_sd_hash(sd_hash)
blobs = yield self.storage.get_blobs_for_stream(stream_hash, only_completed=True)
blob_hashes.extend(blob.blob_hash for blob in blobs if blob.blob_hash is not None)
else:
raise Exception('single argument must be specified')
yield self.storage.should_single_announce_blobs(blob_hashes, immediate=True)
response = yield self._render_response(True)
defer.returnValue(response)
@requires(FILE_MANAGER_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_file_reflect(self, **kwargs):
"""
Reflect all the blobs in a file matching the filter criteria
Usage:
file_reflect [--sd_hash=<sd_hash>] [--file_name=<file_name>]
[--stream_hash=<stream_hash>] [--rowid=<rowid>]
[--reflector=<reflector>]
Options:
--sd_hash=<sd_hash> : (str) get file with matching sd hash
--file_name=<file_name> : (str) get file with matching file name in the
downloads folder
--stream_hash=<stream_hash> : (str) get file with matching stream hash
--rowid=<rowid> : (int) get file with matching row id
--reflector=<reflector> : (str) reflector server, ip address or url
by default choose a server from the config
Returns:
(list) list of blobs reflected
"""
reflector_server = kwargs.get('reflector', None)
lbry_files = yield self._get_lbry_files(**kwargs)
if len(lbry_files) > 1:
raise Exception('Too many (%i) files found, need one' % len(lbry_files))
elif not lbry_files:
raise Exception('No file found')
lbry_file = lbry_files[0]
results = yield reupload.reflect_file(lbry_file, reflector_server=reflector_server)
defer.returnValue(results)
@requires(BLOB_COMPONENT, WALLET_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_blob_list(self, uri=None, stream_hash=None, sd_hash=None, needed=None,
finished=None, page_size=None, page=None):
"""
Returns blob hashes. If not given filters, returns all blobs known by the blob manager
Usage:
blob_list [--needed] [--finished] [<uri> | --uri=<uri>]
[<stream_hash> | --stream_hash=<stream_hash>]
[<sd_hash> | --sd_hash=<sd_hash>]
[<page_size> | --page_size=<page_size>]
[<page> | --page=<page>]
Options:
--needed : (bool) only return needed blobs
--finished : (bool) only return finished blobs
--uri=<uri> : (str) filter blobs by stream in a uri
--stream_hash=<stream_hash> : (str) filter blobs by stream hash
--sd_hash=<sd_hash> : (str) filter blobs by sd hash
--page_size=<page_size> : (int) results page size
--page=<page> : (int) page of results to return
Returns:
(list) List of blob hashes
"""
if uri or stream_hash or sd_hash:
if uri:
metadata = yield self._resolve_name(uri)
sd_hash = utils.get_sd_hash(metadata)
stream_hash = yield self.storage.get_stream_hash_for_sd_hash(sd_hash)
elif stream_hash:
sd_hash = yield self.storage.get_sd_blob_hash_for_stream(stream_hash)
elif sd_hash:
stream_hash = yield self.storage.get_stream_hash_for_sd_hash(sd_hash)
sd_hash = yield self.storage.get_sd_blob_hash_for_stream(stream_hash)
if stream_hash:
crypt_blobs = yield self.storage.get_blobs_for_stream(stream_hash)
blobs = yield defer.gatherResults([
self.blob_manager.get_blob(crypt_blob.blob_hash, crypt_blob.length)
for crypt_blob in crypt_blobs if crypt_blob.blob_hash is not None
])
else:
blobs = []
# get_blobs_for_stream does not include the sd blob, so we'll add it manually
if sd_hash in self.blob_manager.blobs:
blobs = [self.blob_manager.blobs[sd_hash]] + blobs
else:
blobs = self.blob_manager.blobs.itervalues()
if needed:
blobs = [blob for blob in blobs if not blob.get_is_verified()]
if finished:
blobs = [blob for blob in blobs if blob.get_is_verified()]
blob_hashes = [blob.blob_hash for blob in blobs if blob.blob_hash]
page_size = page_size or len(blob_hashes)
page = page or 0
start_index = page * page_size
stop_index = start_index + page_size
blob_hashes_for_return = blob_hashes[start_index:stop_index]
response = yield self._render_response(blob_hashes_for_return)
defer.returnValue(response)
@requires(BLOB_COMPONENT)
def jsonrpc_blob_reflect(self, blob_hashes, reflector_server=None):
"""
Reflects specified blobs
Usage:
blob_reflect (<blob_hashes>...) [--reflector_server=<reflector_server>]
Options:
--reflector_server=<reflector_server> : (str) reflector address
Returns:
(list) reflected blob hashes
"""
d = reupload.reflect_blob_hashes(blob_hashes, self.blob_manager, reflector_server)
d.addCallback(lambda r: self._render_response(r))
return d
@requires(BLOB_COMPONENT)
def jsonrpc_blob_reflect_all(self):
"""
Reflects all saved blobs
Usage:
blob_reflect_all
Options:
None
Returns:
(bool) true if successful
"""
d = self.blob_manager.get_all_verified_blobs()
d.addCallback(reupload.reflect_blob_hashes, self.blob_manager)
d.addCallback(lambda r: self._render_response(r))
return d
@requires(DHT_COMPONENT)
@defer.inlineCallbacks
def jsonrpc_peer_ping(self, node_id, address=None, port=None):
"""
Send a kademlia ping to the specified peer. If address and port are provided the peer is directly pinged,
if not provided the peer is located first.
Usage:
peer_ping (<node_id> | --node_id=<node_id>) [<address> | --address=<address>] [<port> | --port=<port>]
Options:
--address=<address> : (str) ip address of the peer
--port=<port> : (int) udp port of the peer
Returns:
(str) pong, or {'error': <error message>} if an error is encountered
"""
contact = None
if node_id and address and port:
contact = self.dht_node.contact_manager.get_contact(node_id.decode('hex'), address, int(port))
if not contact:
contact = self.dht_node.contact_manager.make_contact(
node_id.decode('hex'), address, int(port), self.dht_node._protocol
)
if not contact:
try:
contact = yield self.dht_node.findContact(node_id.decode('hex'))
except TimeoutError:
result = {'error': 'timeout finding peer'}
defer.returnValue(result)
if not contact:
defer.returnValue({'error': 'peer not found'})
try:
result = yield contact.ping()
except TimeoutError:
result = {'error': 'ping timeout'}
defer.returnValue(result)
@requires(DHT_COMPONENT)
def jsonrpc_routing_table_get(self):
"""
Get DHT routing information
Usage:
routing_table_get
Options:
None
Returns:
(dict) dictionary containing routing and contact information
{
"buckets": {
<bucket index>: [
{
"address": (str) peer address,
"port": (int) peer udp port
"node_id": (str) peer node id,
"blobs": (list) blob hashes announced by peer
}
]
},
"contacts": (list) contact node ids,
"blob_hashes": (list) all of the blob hashes stored by peers in the list of buckets,
"node_id": (str) the local dht node id
}
"""
result = {}
data_store = self.dht_node._dataStore._dict
datastore_len = len(data_store)
hosts = {}
if datastore_len:
for k, v in data_store.iteritems():
for contact, value, lastPublished, originallyPublished, originalPublisherID in v:
if contact in hosts:
blobs = hosts[contact]
else:
blobs = []
blobs.append(k.encode('hex'))
hosts[contact] = blobs
contact_set = []
blob_hashes = []
result['buckets'] = {}
for i in range(len(self.dht_node._routingTable._buckets)):
for contact in self.dht_node._routingTable._buckets[i]._contacts:
contacts = result['buckets'].get(i, [])
if contact in hosts:
blobs = hosts[contact]
del hosts[contact]
else:
blobs = []
host = {
"address": contact.address,
"port": contact.port,
"node_id": contact.id.encode("hex"),
"blobs": blobs,
}
for blob_hash in blobs:
if blob_hash not in blob_hashes:
blob_hashes.append(blob_hash)
contacts.append(host)
result['buckets'][i] = contacts
if contact.id.encode('hex') not in contact_set:
contact_set.append(contact.id.encode("hex"))
result['contacts'] = contact_set
result['blob_hashes'] = blob_hashes
result['node_id'] = self.dht_node.node_id.encode('hex')
return self._render_response(result)
# the single peer downloader needs wallet access
@requires(DHT_COMPONENT, WALLET_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
def jsonrpc_blob_availability(self, blob_hash, search_timeout=None, blob_timeout=None):
"""
Get blob availability
Usage:
blob_availability (<blob_hash>) [<search_timeout> | --search_timeout=<search_timeout>]
[<blob_timeout> | --blob_timeout=<blob_timeout>]
Options:
--blob_hash=<blob_hash> : (str) check availability for this blob hash
--search_timeout=<search_timeout> : (int) how long to search for peers for the blob
in the dht
--blob_timeout=<blob_timeout> : (int) how long to try downloading from a peer
Returns:
(dict) {
"is_available": <bool, true if blob is available from a peer from peer list>
"reachable_peers": ["<ip>:<port>"],
"unreachable_peers": ["<ip>:<port>"]
}
"""
return self._blob_availability(blob_hash, search_timeout, blob_timeout)
@requires(UPNP_COMPONENT, WALLET_COMPONENT, DHT_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@AuthJSONRPCServer.deprecated("stream_availability")
def jsonrpc_get_availability(self, uri, sd_timeout=None, peer_timeout=None):
"""
Get stream availability for lbry uri
Usage:
get_availability (<uri> | --uri=<uri>) [<sd_timeout> | --sd_timeout=<sd_timeout>]
[<peer_timeout> | --peer_timeout=<peer_timeout>]
Options:
--uri=<uri> : (str) check availability for this uri
--sd_timeout=<sd_timeout> : (int) sd blob download timeout
--peer_timeout=<peer_timeout> : (int) how long to look for peers
Returns:
(float) Peers per blob / total blobs
"""
return self.jsonrpc_stream_availability(uri, peer_timeout, sd_timeout)
@requires(UPNP_COMPONENT, WALLET_COMPONENT, DHT_COMPONENT, conditions=[WALLET_IS_UNLOCKED])
@defer.inlineCallbacks
def jsonrpc_stream_availability(self, uri, search_timeout=None, blob_timeout=None):
"""
Get stream availability for lbry uri
Usage:
stream_availability (<uri> | --uri=<uri>)
[<search_timeout> | --search_timeout=<search_timeout>]
[<blob_timeout> | --blob_timeout=<blob_timeout>]
Options:
--uri=<uri> : (str) check availability for this uri
--search_timeout=<search_timeout> : (int) how long to search for peers for the blob
in the dht
--blob_timeout=<blob_timeout> : (int) how long to try downloading from a peer
Returns:
(dict) {
'is_available': <bool>,
'did_decode': <bool>,
'did_resolve': <bool>,
'is_stream': <bool>,
'num_blobs_in_stream': <int>,
'sd_hash': <str>,
'sd_blob_availability': <dict> see `blob_availability`,
'head_blob_hash': <str>,
'head_blob_availability': <dict> see `blob_availability`,
'use_upnp': <bool>,
'upnp_redirect_is_set': <bool>,
'error': <None> | <str> error message
}
"""
search_timeout = search_timeout or conf.settings['peer_search_timeout']
blob_timeout = blob_timeout or conf.settings['sd_download_timeout']
response = {
'is_available': False,
'did_decode': False,
'did_resolve': False,
'is_stream': False,
'num_blobs_in_stream': None,
'sd_hash': None,
'sd_blob_availability': {},
'head_blob_hash': None,
'head_blob_availability': {},
'use_upnp': conf.settings['use_upnp'],
'upnp_redirect_is_set': len(self.upnp.upnp_redirects),
'error': None
}
try:
resolved_result = yield self.wallet.resolve(uri)
response['did_resolve'] = True
except UnknownNameError:
response['error'] = "Failed to resolve name"
defer.returnValue(response)
except URIParseError:
response['error'] = "Invalid URI"
defer.returnValue(response)
try:
claim_obj = smart_decode(resolved_result[uri]['claim']['hex'])
response['did_decode'] = True
except DecodeError:
response['error'] = "Failed to decode claim value"
defer.returnValue(response)
response['is_stream'] = claim_obj.is_stream
if not claim_obj.is_stream:
response['error'] = "Claim for \"%s\" does not contain a stream" % uri
defer.returnValue(response)
sd_hash = claim_obj.source_hash
response['sd_hash'] = sd_hash
head_blob_hash = None
downloader = self._get_single_peer_downloader()
have_sd_blob = sd_hash in self.blob_manager.blobs
try:
sd_blob = yield self.jsonrpc_blob_get(sd_hash, timeout=blob_timeout,
encoding="json")
if not have_sd_blob:
yield self.jsonrpc_blob_delete(sd_hash)
if sd_blob and 'blobs' in sd_blob:
response['num_blobs_in_stream'] = len(sd_blob['blobs']) - 1
head_blob_hash = sd_blob['blobs'][0]['blob_hash']
head_blob_availability = yield self._blob_availability(head_blob_hash,
search_timeout,
blob_timeout,
downloader)
response['head_blob_availability'] = head_blob_availability
except Exception as err:
response['error'] = err
response['head_blob_hash'] = head_blob_hash
response['sd_blob_availability'] = yield self._blob_availability(sd_hash,
search_timeout,
blob_timeout,
downloader)
response['is_available'] = response['sd_blob_availability'].get('is_available') and \
response['head_blob_availability'].get('is_available')
defer.returnValue(response)
@defer.inlineCallbacks
def jsonrpc_cli_test_command(self, pos_arg, pos_args=[], pos_arg2=None, pos_arg3=None,
a_arg=False, b_arg=False):
"""
This command is only for testing the CLI argument parsing
Usage:
cli_test_command [--a_arg] [--b_arg] (<pos_arg> | --pos_arg=<pos_arg>)
[<pos_args>...] [--pos_arg2=<pos_arg2>]
[--pos_arg3=<pos_arg3>]
Options:
--a_arg : (bool) a arg
--b_arg : (bool) b arg
--pos_arg=<pos_arg> : (int) pos arg
--pos_args=<pos_args> : (int) pos args
--pos_arg2=<pos_arg2> : (int) pos arg 2
--pos_arg3=<pos_arg3> : (int) pos arg 3
Returns:
pos args
"""
out = (pos_arg, pos_args, pos_arg2, pos_arg3, a_arg, b_arg)
response = yield self._render_response(out)
defer.returnValue(response)
def loggly_time_string(dt):
formatted_dt = dt.strftime("%Y-%m-%dT%H:%M:%S")
milliseconds = str(round(dt.microsecond * (10.0 ** -5), 3))
return urllib.quote_plus(formatted_dt + milliseconds + "Z")
def get_loggly_query_string(installation_id):
base_loggly_search_url = "https://lbry.loggly.com/search#"
now = utils.now()
yesterday = now - utils.timedelta(days=1)
params = {
'terms': 'json.installation_id:{}*'.format(installation_id[:SHORT_ID_LEN]),
'from': loggly_time_string(yesterday),
'to': loggly_time_string(now)
}
data = urllib.urlencode(params)
return base_loggly_search_url + data
def report_bug_to_slack(message, installation_id, platform_name, app_version):
webhook = utils.deobfuscate(conf.settings['SLACK_WEBHOOK'])
payload_template = "os: %s\n version: %s\n<%s|loggly>\n%s"
payload_params = (
platform_name,
app_version,
get_loggly_query_string(installation_id),
message
)
payload = {
"text": payload_template % payload_params
}
requests.post(webhook, json.dumps(payload))
def get_lbry_file_search_value(search_fields):
for searchtype in FileID:
value = search_fields.get(searchtype, None)
if value is not None:
return searchtype, value
raise NoValidSearch('{} is missing a valid search type'.format(search_fields))
def iter_lbry_file_search_values(search_fields):
for searchtype in FileID:
value = search_fields.get(searchtype, None)
if value is not None:
yield searchtype, value
def create_key_getter(field):
search_path = field.split('.')
def key_getter(value):
for key in search_path:
try:
value = value[key]
except KeyError as e:
errmsg = 'Failed to get "{}", key "{}" was not found.'
raise Exception(errmsg.format(field, e.message))
return value
return key_getter
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