622 lines
25 KiB
Python
622 lines
25 KiB
Python
import os
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import asyncio
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import logging
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import math
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import binascii
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import typing
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from hashlib import sha256
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from types import SimpleNamespace
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import base58
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from aioupnp import __version__ as aioupnp_version
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from aioupnp.upnp import UPnP
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from aioupnp.fault import UPnPError
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import lbrynet.schema
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from lbrynet import utils
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from lbrynet.conf import HEADERS_FILE_SHA256_CHECKSUM
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from lbrynet.dht.node import Node
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from lbrynet.dht.blob_announcer import BlobAnnouncer
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from lbrynet.blob.blob_manager import BlobFileManager
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from lbrynet.blob_exchange.server import BlobServer
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from lbrynet.stream.stream_manager import StreamManager
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from lbrynet.extras.daemon.Component import Component
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from lbrynet.extras.daemon.exchange_rate_manager import ExchangeRateManager
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from lbrynet.extras.daemon.storage import SQLiteStorage
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from lbrynet.extras.wallet import LbryWalletManager
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from lbrynet.extras.wallet import Network
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log = logging.getLogger(__name__)
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# settings must be initialized before this file is imported
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DATABASE_COMPONENT = "database"
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BLOB_COMPONENT = "blob_manager"
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HEADERS_COMPONENT = "blockchain_headers"
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WALLET_COMPONENT = "wallet"
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DHT_COMPONENT = "dht"
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HASH_ANNOUNCER_COMPONENT = "hash_announcer"
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STREAM_MANAGER_COMPONENT = "stream_manager"
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PEER_PROTOCOL_SERVER_COMPONENT = "peer_protocol_server"
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UPNP_COMPONENT = "upnp"
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EXCHANGE_RATE_MANAGER_COMPONENT = "exchange_rate_manager"
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async def gather_dict(tasks: dict):
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async def wait_value(key, value):
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return key, await value
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return dict(await asyncio.gather(*(
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wait_value(*kv) for kv in tasks.items()
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)))
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class DatabaseComponent(Component):
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component_name = DATABASE_COMPONENT
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def __init__(self, component_manager):
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super().__init__(component_manager)
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self.storage = None
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@property
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def component(self):
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return self.storage
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@staticmethod
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def get_current_db_revision():
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return 9
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@property
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def revision_filename(self):
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return os.path.join(self.conf.data_dir, 'db_revision')
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def _write_db_revision_file(self, version_num):
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with open(self.revision_filename, mode='w') as db_revision:
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db_revision.write(str(version_num))
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async def start(self):
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# check directories exist, create them if they don't
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log.info("Loading databases")
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if not os.path.exists(self.revision_filename):
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log.warning("db_revision file not found. Creating it")
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self._write_db_revision_file(self.get_current_db_revision())
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# check the db migration and run any needed migrations
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with open(self.revision_filename, "r") as revision_read_handle:
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old_revision = int(revision_read_handle.read().strip())
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if old_revision > self.get_current_db_revision():
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raise Exception('This version of lbrynet is not compatible with the database\n'
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'Your database is revision %i, expected %i' %
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(old_revision, self.get_current_db_revision()))
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if old_revision < self.get_current_db_revision():
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from lbrynet.extras.daemon.migrator import dbmigrator
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log.info("Upgrading your databases (revision %i to %i)", old_revision, self.get_current_db_revision())
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await asyncio.get_event_loop().run_in_executor(
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None, dbmigrator.migrate_db, self.conf, old_revision, self.get_current_db_revision()
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)
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self._write_db_revision_file(self.get_current_db_revision())
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log.info("Finished upgrading the databases.")
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self.storage = SQLiteStorage(
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self.conf, os.path.join(self.conf.data_dir, "lbrynet.sqlite")
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)
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await self.storage.open()
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async def stop(self):
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await self.storage.close()
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self.storage = None
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HEADERS_URL = "https://headers.lbry.io/blockchain_headers_latest"
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HEADER_SIZE = 112
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class HeadersComponent(Component):
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component_name = HEADERS_COMPONENT
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def __init__(self, component_manager):
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super().__init__(component_manager)
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self.headers_dir = os.path.join(self.conf.wallet_dir, 'lbc_mainnet')
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self.headers_file = os.path.join(self.headers_dir, 'headers')
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self.old_file = os.path.join(self.conf.wallet_dir, 'blockchain_headers')
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self._downloading_headers = None
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self._headers_progress_percent = 0
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@property
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def component(self):
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return self
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async def get_status(self):
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return {} if not self._downloading_headers else {
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'downloading_headers': self._downloading_headers,
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'download_progress': self._headers_progress_percent
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}
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async def fetch_headers_from_s3(self):
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local_header_size = self.local_header_file_size()
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resume_header = {"Range": f"bytes={local_header_size}-"}
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async with utils.aiohttp_request('get', HEADERS_URL, headers=resume_header) as response:
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if response.status == 406 or response.content_length < HEADER_SIZE: # our file is bigger
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log.warning("s3 is more out of date than we are")
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return
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if response.content_length % HEADER_SIZE != 0:
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log.warning("s3 appears to have corrupted header")
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return
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final_size_after_download = response.content_length + local_header_size
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write_mode = "wb"
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if local_header_size > 0:
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log.info("Resuming download of %i bytes from s3", response.content_length)
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write_mode = "a+b"
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with open(self.headers_file, write_mode) as fd:
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while True:
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chunk = await response.content.read(512)
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if not chunk:
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break
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fd.write(chunk)
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self._headers_progress_percent = math.ceil(
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float(fd.tell()) / float(final_size_after_download) * 100
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)
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log.info("fetched headers from s3, now verifying integrity after download.")
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self._check_header_file_integrity()
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def local_header_file_height(self):
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return max((self.local_header_file_size() / HEADER_SIZE) - 1, 0)
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def local_header_file_size(self):
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if os.path.isfile(self.headers_file):
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return os.stat(self.headers_file).st_size
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return 0
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async def get_remote_height(self):
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ledger = SimpleNamespace()
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ledger.config = {
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'default_servers': self.conf.lbryum_servers,
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'data_path': self.conf.wallet_dir
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}
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net = Network(ledger)
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first_connection = net.on_connected.first
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asyncio.ensure_future(net.start())
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await first_connection
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remote_height = await net.get_server_height()
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await net.stop()
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return remote_height
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async def should_download_headers_from_s3(self):
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if self.conf.blockchain_name != "lbrycrd_main":
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return False
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self._check_header_file_integrity()
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s3_headers_depth = self.conf.s3_headers_depth
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if not s3_headers_depth:
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return False
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local_height = self.local_header_file_height()
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remote_height = await self.get_remote_height()
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log.info("remote height: %i, local height: %i", remote_height, local_height)
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if remote_height > (local_height + s3_headers_depth):
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return True
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return False
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def _check_header_file_integrity(self):
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# TODO: temporary workaround for usability. move to txlbryum and check headers instead of file integrity
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if self.conf.blockchain_name != "lbrycrd_main":
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return
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hashsum = sha256()
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checksum_height, checksum = HEADERS_FILE_SHA256_CHECKSUM
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checksum_length_in_bytes = checksum_height * HEADER_SIZE
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if self.local_header_file_size() < checksum_length_in_bytes:
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return
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with open(self.headers_file, "rb") as headers_file:
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hashsum.update(headers_file.read(checksum_length_in_bytes))
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current_checksum = hashsum.hexdigest()
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if current_checksum != checksum:
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msg = f"Expected checksum {checksum}, got {current_checksum}"
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log.warning("Wallet file corrupted, checksum mismatch. " + msg)
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log.warning("Deleting header file so it can be downloaded again.")
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os.unlink(self.headers_file)
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elif (self.local_header_file_size() % HEADER_SIZE) != 0:
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log.warning("Header file is good up to checkpoint height, but incomplete. Truncating to checkpoint.")
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with open(self.headers_file, "rb+") as headers_file:
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headers_file.truncate(checksum_length_in_bytes)
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async def start(self):
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if not os.path.exists(self.headers_dir):
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os.mkdir(self.headers_dir)
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if os.path.exists(self.old_file):
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log.warning("Moving old headers from %s to %s.", self.old_file, self.headers_file)
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os.rename(self.old_file, self.headers_file)
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self._downloading_headers = await self.should_download_headers_from_s3()
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if self._downloading_headers:
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try:
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await self.fetch_headers_from_s3()
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except Exception as err:
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log.error("failed to fetch headers from s3: %s", err)
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finally:
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self._downloading_headers = False
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async def stop(self):
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pass
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class WalletComponent(Component):
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component_name = WALLET_COMPONENT
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depends_on = [DATABASE_COMPONENT, HEADERS_COMPONENT]
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def __init__(self, component_manager):
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super().__init__(component_manager)
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self.wallet_manager = None
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@property
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def component(self):
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return self.wallet_manager
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async def get_status(self):
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if self.wallet_manager and self.running:
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local_height = self.wallet_manager.network.get_local_height()
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remote_height = self.wallet_manager.network.get_server_height()
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best_hash = self.wallet_manager.get_best_blockhash()
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return {
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'blocks': max(local_height, 0),
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'blocks_behind': max(remote_height - local_height, 0),
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'best_blockhash': best_hash,
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'is_encrypted': self.wallet_manager.wallet.use_encryption,
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'is_locked': not self.wallet_manager.is_wallet_unlocked,
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}
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async def start(self):
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log.info("Starting torba wallet")
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storage = self.component_manager.get_component(DATABASE_COMPONENT)
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lbrynet.schema.BLOCKCHAIN_NAME = self.conf.blockchain_name
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self.wallet_manager = await LbryWalletManager.from_lbrynet_config(self.conf, storage)
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self.wallet_manager.old_db = storage
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await self.wallet_manager.start()
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async def stop(self):
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await self.wallet_manager.stop()
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self.wallet_manager = None
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class BlobComponent(Component):
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component_name = BLOB_COMPONENT
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depends_on = [DATABASE_COMPONENT]
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def __init__(self, component_manager):
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super().__init__(component_manager)
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self.blob_manager: BlobFileManager = None
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@property
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def component(self) -> typing.Optional[BlobFileManager]:
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return self.blob_manager
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async def start(self):
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storage = self.component_manager.get_component(DATABASE_COMPONENT)
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data_store = None
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if DHT_COMPONENT not in self.component_manager.skip_components:
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dht_node: Node = self.component_manager.get_component(DHT_COMPONENT)
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if dht_node:
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data_store = dht_node.protocol.data_store
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self.blob_manager = BlobFileManager(asyncio.get_event_loop(), os.path.join(self.conf.data_dir, "blobfiles"),
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storage, data_store)
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return await self.blob_manager.setup()
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async def stop(self):
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self.blob_manager.stop()
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async def get_status(self):
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count = 0
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if self.blob_manager:
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count = len(self.blob_manager.completed_blob_hashes)
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return {'finished_blobs': count}
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class DHTComponent(Component):
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component_name = DHT_COMPONENT
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depends_on = [UPNP_COMPONENT]
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def __init__(self, component_manager):
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super().__init__(component_manager)
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self.dht_node: Node = None
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self.upnp_component = None
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self.external_udp_port = None
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self.external_peer_port = None
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@property
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def component(self) -> typing.Optional[Node]:
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return self.dht_node
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async def get_status(self):
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return {
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'node_id': None if not self.dht_node else binascii.hexlify(self.dht_node.protocol.node_id),
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'peers_in_routing_table': 0 if not self.dht_node else len(self.dht_node.protocol.routing_table.get_peers())
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}
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def get_node_id(self):
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node_id_filename = os.path.join(self.conf.data_dir, "node_id")
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if os.path.isfile(node_id_filename):
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with open(node_id_filename, "r") as node_id_file:
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return base58.b58decode(str(node_id_file.read()).strip())
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node_id = utils.generate_id()
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with open(node_id_filename, "w") as node_id_file:
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node_id_file.write(base58.b58encode(node_id).decode())
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return node_id
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async def start(self):
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log.info("start the dht")
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self.upnp_component = self.component_manager.get_component(UPNP_COMPONENT)
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self.external_peer_port = self.upnp_component.upnp_redirects.get("TCP", self.conf.tcp_port)
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self.external_udp_port = self.upnp_component.upnp_redirects.get("UDP", self.conf.udp_port)
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external_ip = self.upnp_component.external_ip
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if not external_ip:
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log.warning("UPnP component failed to get external ip")
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external_ip = await utils.get_external_ip()
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if not external_ip:
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log.warning("failed to get external ip")
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self.dht_node = Node(
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asyncio.get_event_loop(),
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self.component_manager.peer_manager,
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node_id=self.get_node_id(),
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internal_udp_port=self.conf.udp_port,
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udp_port=self.external_udp_port,
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external_ip=external_ip,
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peer_port=self.external_peer_port,
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rpc_timeout=self.conf.node_rpc_timeout,
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split_buckets_under_index=self.conf.split_buckets_under_index
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)
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self.dht_node.start(
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interface=self.conf.network_interface, known_node_urls=self.conf.known_dht_nodes
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)
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log.info("Started the dht")
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async def stop(self):
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self.dht_node.stop()
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class HashAnnouncerComponent(Component):
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component_name = HASH_ANNOUNCER_COMPONENT
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depends_on = [DHT_COMPONENT, DATABASE_COMPONENT]
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def __init__(self, component_manager):
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super().__init__(component_manager)
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self.hash_announcer: BlobAnnouncer = None
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@property
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def component(self) -> typing.Optional[BlobAnnouncer]:
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return self.hash_announcer
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async def start(self):
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storage = self.component_manager.get_component(DATABASE_COMPONENT)
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dht_node = self.component_manager.get_component(DHT_COMPONENT)
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self.hash_announcer = BlobAnnouncer(asyncio.get_event_loop(), dht_node, storage)
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self.hash_announcer.start(self.conf.concurrent_blob_announcers)
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log.info("Started blob announcer")
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async def stop(self):
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self.hash_announcer.stop()
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log.info("Stopped blob announcer")
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async def get_status(self):
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return {
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'announce_queue_size': 0 if not self.hash_announcer else len(self.hash_announcer.announce_queue)
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}
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class StreamManagerComponent(Component):
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component_name = STREAM_MANAGER_COMPONENT
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depends_on = [BLOB_COMPONENT, DATABASE_COMPONENT, WALLET_COMPONENT]
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def __init__(self, component_manager):
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super().__init__(component_manager)
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self.stream_manager: StreamManager = None
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@property
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def component(self) -> typing.Optional[StreamManager]:
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return self.stream_manager
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async def get_status(self):
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if not self.stream_manager:
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return
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return {
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'managed_files': len(self.stream_manager.streams)
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}
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async def start(self):
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blob_manager = self.component_manager.get_component(BLOB_COMPONENT)
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storage = self.component_manager.get_component(DATABASE_COMPONENT)
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wallet = self.component_manager.get_component(WALLET_COMPONENT)
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try:
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node = self.component_manager.get_component(DHT_COMPONENT)
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except NameError:
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node = None
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log.info('Starting the file manager')
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loop = asyncio.get_event_loop()
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self.stream_manager = StreamManager(
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loop, self.conf, blob_manager, wallet, storage, node, self.component_manager.analytics_manager
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)
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await self.stream_manager.start()
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log.info('Done setting up file manager')
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async def stop(self):
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self.stream_manager.stop()
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class PeerProtocolServerComponent(Component):
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component_name = PEER_PROTOCOL_SERVER_COMPONENT
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depends_on = [UPNP_COMPONENT, BLOB_COMPONENT, WALLET_COMPONENT]
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def __init__(self, component_manager):
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super().__init__(component_manager)
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self.blob_server: BlobServer = None
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@property
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def component(self) -> typing.Optional[BlobServer]:
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return self.blob_server
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async def start(self):
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log.info("start blob server")
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upnp = self.component_manager.get_component(UPNP_COMPONENT)
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blob_manager: BlobFileManager = self.component_manager.get_component(BLOB_COMPONENT)
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wallet: LbryWalletManager = self.component_manager.get_component(WALLET_COMPONENT)
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peer_port = self.conf.tcp_port
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address = await wallet.get_unused_address()
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self.blob_server = BlobServer(asyncio.get_event_loop(), blob_manager, address)
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self.blob_server.start_server(peer_port, interface=self.conf.network_interface)
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await self.blob_server.started_listening.wait()
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async def stop(self):
|
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if self.blob_server:
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self.blob_server.stop_server()
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|
|
|
|
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class UPnPComponent(Component):
|
|
component_name = UPNP_COMPONENT
|
|
|
|
def __init__(self, component_manager):
|
|
super().__init__(component_manager)
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self._int_peer_port = self.conf.tcp_port
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|
self._int_dht_node_port = self.conf.udp_port
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|
self.use_upnp = self.conf.use_upnp
|
|
self.upnp = None
|
|
self.upnp_redirects = {}
|
|
self.external_ip = None
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|
self._maintain_redirects_task = None
|
|
|
|
@property
|
|
def component(self) -> 'UPnPComponent':
|
|
return self
|
|
|
|
async def _repeatedly_maintain_redirects(self, now=True):
|
|
while True:
|
|
if now:
|
|
await self._maintain_redirects()
|
|
await asyncio.sleep(360)
|
|
|
|
async def _maintain_redirects(self):
|
|
# setup the gateway if necessary
|
|
if not self.upnp:
|
|
try:
|
|
self.upnp = await UPnP.discover()
|
|
log.info("found upnp gateway: %s", self.upnp.gateway.manufacturer_string)
|
|
except Exception as err:
|
|
log.warning("upnp discovery failed: %s", err)
|
|
self.upnp = None
|
|
|
|
# update the external ip
|
|
external_ip = None
|
|
if self.upnp:
|
|
try:
|
|
external_ip = await self.upnp.get_external_ip()
|
|
if external_ip != "0.0.0.0" and not self.external_ip:
|
|
log.info("got external ip from UPnP: %s", external_ip)
|
|
except (asyncio.TimeoutError, UPnPError):
|
|
pass
|
|
|
|
if external_ip == "0.0.0.0" or not external_ip:
|
|
log.warning("unable to get external ip from UPnP, checking lbry.io fallback")
|
|
external_ip = await utils.get_external_ip()
|
|
if self.external_ip and self.external_ip != external_ip:
|
|
log.info("external ip changed from %s to %s", self.external_ip, external_ip)
|
|
self.external_ip = external_ip
|
|
assert self.external_ip is not None # TODO: handle going/starting offline
|
|
|
|
if not self.upnp_redirects and self.upnp: # setup missing redirects
|
|
try:
|
|
log.info("add UPnP port mappings")
|
|
d = {}
|
|
if PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components:
|
|
d["TCP"] = self.upnp.get_next_mapping(self._int_peer_port, "TCP", "LBRY peer port")
|
|
if DHT_COMPONENT not in self.component_manager.skip_components:
|
|
d["UDP"] = self.upnp.get_next_mapping(self._int_dht_node_port, "UDP", "LBRY DHT port")
|
|
upnp_redirects = await gather_dict(d)
|
|
log.info("set up redirects: %s", upnp_redirects)
|
|
self.upnp_redirects.update(upnp_redirects)
|
|
except (asyncio.TimeoutError, UPnPError):
|
|
self.upnp = None
|
|
return self._maintain_redirects()
|
|
elif self.upnp: # check existing redirects are still active
|
|
found = set()
|
|
mappings = await self.upnp.get_redirects()
|
|
for mapping in mappings:
|
|
proto = mapping['NewProtocol']
|
|
if proto in self.upnp_redirects and mapping['NewExternalPort'] == self.upnp_redirects[proto]:
|
|
if mapping['NewInternalClient'] == self.upnp.lan_address:
|
|
found.add(proto)
|
|
if 'UDP' not in found and DHT_COMPONENT not in self.component_manager.skip_components:
|
|
try:
|
|
udp_port = await self.upnp.get_next_mapping(self._int_dht_node_port, "UDP", "LBRY DHT port")
|
|
self.upnp_redirects['UDP'] = udp_port
|
|
log.info("refreshed upnp redirect for dht port: %i", udp_port)
|
|
except (asyncio.TimeoutError, UPnPError):
|
|
del self.upnp_redirects['UDP']
|
|
if 'TCP' not in found and PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components:
|
|
try:
|
|
tcp_port = await self.upnp.get_next_mapping(self._int_peer_port, "TCP", "LBRY peer port")
|
|
self.upnp_redirects['TCP'] = tcp_port
|
|
log.info("refreshed upnp redirect for peer port: %i", tcp_port)
|
|
except (asyncio.TimeoutError, UPnPError):
|
|
del self.upnp_redirects['TCP']
|
|
if ('TCP' in self.upnp_redirects
|
|
and PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components) and (
|
|
'UDP' in self.upnp_redirects and DHT_COMPONENT not in self.component_manager.skip_components):
|
|
if self.upnp_redirects:
|
|
log.debug("upnp redirects are still active")
|
|
|
|
async def start(self):
|
|
log.info("detecting external ip")
|
|
if not self.use_upnp:
|
|
self.external_ip = await utils.get_external_ip()
|
|
return
|
|
success = False
|
|
await self._maintain_redirects()
|
|
if self.upnp:
|
|
if not self.upnp_redirects and not all([x in self.component_manager.skip_components for x in
|
|
(DHT_COMPONENT, PEER_PROTOCOL_SERVER_COMPONENT)]):
|
|
log.error("failed to setup upnp, debugging infomation: %s", self.upnp.zipped_debugging_info)
|
|
else:
|
|
success = True
|
|
if self.upnp_redirects:
|
|
log.debug("set up upnp port redirects for gateway: %s", self.upnp.gateway.manufacturer_string)
|
|
else:
|
|
log.error("failed to setup upnp")
|
|
if self.component_manager.analytics_manager:
|
|
await self.component_manager.analytics_manager.send_upnp_setup_success_fail(
|
|
success, await self.get_status()
|
|
)
|
|
self._maintain_redirects_task = asyncio.create_task(self._repeatedly_maintain_redirects(now=False))
|
|
|
|
async def stop(self):
|
|
if self.upnp_redirects:
|
|
await asyncio.wait([
|
|
self.upnp.delete_port_mapping(port, protocol) for protocol, port in self.upnp_redirects.items()
|
|
])
|
|
if self._maintain_redirects_task and not self._maintain_redirects_task.done():
|
|
self._maintain_redirects_task.cancel()
|
|
|
|
async def get_status(self):
|
|
return {
|
|
'aioupnp_version': aioupnp_version,
|
|
'redirects': self.upnp_redirects,
|
|
'gateway': 'No gateway found' if not self.upnp else self.upnp.gateway.manufacturer_string,
|
|
'dht_redirect_set': 'UDP' in self.upnp_redirects,
|
|
'peer_redirect_set': 'TCP' in self.upnp_redirects,
|
|
'external_ip': self.external_ip
|
|
}
|
|
|
|
|
|
class ExchangeRateManagerComponent(Component):
|
|
component_name = EXCHANGE_RATE_MANAGER_COMPONENT
|
|
|
|
def __init__(self, component_manager):
|
|
super().__init__(component_manager)
|
|
self.exchange_rate_manager = ExchangeRateManager()
|
|
|
|
@property
|
|
def component(self) -> ExchangeRateManager:
|
|
return self.exchange_rate_manager
|
|
|
|
async def start(self):
|
|
self.exchange_rate_manager.start()
|
|
|
|
async def stop(self):
|
|
self.exchange_rate_manager.stop()
|