lbry-sdk/lbry/torrent/torrent_manager.py
2020-05-07 04:04:54 -03:00

112 lines
4.7 KiB
Python

import asyncio
import binascii
import logging
import typing
from typing import Optional
from aiohttp.web import Request
from lbry.file.source_manager import SourceManager
from lbry.file.source import ManagedDownloadSource
if typing.TYPE_CHECKING:
from lbry.torrent.session import TorrentSession
from lbry.conf import Config
from lbry.wallet.transaction import Transaction
from lbry.extras.daemon.analytics import AnalyticsManager
from lbry.extras.daemon.storage import SQLiteStorage, StoredContentClaim
from lbry.extras.daemon.storage import StoredContentClaim
log = logging.getLogger(__name__)
def path_or_none(encoded_path) -> Optional[str]:
if not encoded_path:
return
return binascii.unhexlify(encoded_path).decode()
class TorrentSource(ManagedDownloadSource):
STATUS_STOPPED = "stopped"
def __init__(self, loop: asyncio.AbstractEventLoop, config: 'Config', storage: 'SQLiteStorage', identifier: str,
file_name: Optional[str] = None, download_directory: Optional[str] = None,
status: Optional[str] = STATUS_STOPPED, claim: Optional['StoredContentClaim'] = None,
download_id: Optional[str] = None, rowid: Optional[int] = None,
content_fee: Optional['Transaction'] = None,
analytics_manager: Optional['AnalyticsManager'] = None,
added_on: Optional[int] = None, torrent_session: Optional['TorrentSession'] = None):
super().__init__(loop, config, storage, identifier, file_name, download_directory, status, claim, download_id,
rowid, content_fee, analytics_manager, added_on)
self.torrent_session = torrent_session
async def start(self, timeout: Optional[float] = None, save_now: Optional[bool] = False):
await self.torrent_session.add_torrent(self.identifier, self.download_directory)
async def stop(self, finished: bool = False):
await self.torrent_session.remove_torrent(self.identifier)
async def save_file(self, file_name: Optional[str] = None, download_directory: Optional[str] = None):
raise NotImplementedError()
def stop_tasks(self):
raise NotImplementedError()
@property
def completed(self):
raise NotImplementedError()
class TorrentManager(SourceManager):
_sources: typing.Dict[str, ManagedDownloadSource]
filter_fields = set(SourceManager.filter_fields)
filter_fields.update({
'bt_infohash',
'blobs_remaining', # TODO: here they call them "parts", but its pretty much the same concept
'blobs_in_stream'
})
def __init__(self, loop: asyncio.AbstractEventLoop, config: 'Config', torrent_session: 'TorrentSession',
storage: 'SQLiteStorage', analytics_manager: Optional['AnalyticsManager'] = None):
super().__init__(loop, config, storage, analytics_manager)
self.torrent_session: 'TorrentSession' = torrent_session
def add(self, source: ManagedDownloadSource):
super().add(source)
async def recover_streams(self, file_infos: typing.List[typing.Dict]):
raise NotImplementedError
async def _load_stream(self, rowid: int, bt_infohash: str, file_name: Optional[str],
download_directory: Optional[str], status: str,
claim: Optional['StoredContentClaim'], content_fee: Optional['Transaction'],
added_on: Optional[int]):
stream = TorrentSource(
self.loop, self.config, self.storage, identifier=bt_infohash, file_name=file_name,
download_directory=download_directory, status=status, claim=claim, rowid=rowid,
content_fee=content_fee, analytics_manager=self.analytics_manager, added_on=added_on,
torrent_session=self.torrent_session
)
self.add(stream)
async def initialize_from_database(self):
pass
async def start(self):
await super().start()
def stop(self):
super().stop()
log.info("finished stopping the torrent manager")
async def create(self, file_path: str, key: Optional[bytes] = None,
iv_generator: Optional[typing.Generator[bytes, None, None]] = None):
raise NotImplementedError
async def _delete(self, source: ManagedDownloadSource, delete_file: Optional[bool] = False):
raise NotImplementedError
# blob_hashes = [source.sd_hash] + [b.blob_hash for b in source.descriptor.blobs[:-1]]
# await self.blob_manager.delete_blobs(blob_hashes, delete_from_db=False)
# await self.storage.delete_stream(source.descriptor)
async def stream_partial_content(self, request: Request, sd_hash: str):
raise NotImplementedError