113 lines
4.2 KiB
Python
113 lines
4.2 KiB
Python
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from twisted.internet import defer
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from twisted.python.failure import Failure
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from lbrynet.core.client.BlobRequester import BlobRequester
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from lbrynet.core.client.ConnectionManager import ConnectionManager
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from lbrynet.core.client.DownloadManager import DownloadManager
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from BlindMetadataHandler import BlindMetadataHandler
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from BlindProgressManager import BlindProgressManager
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from BlindBlobHandler import BlindBlobHandler
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from collections import defaultdict
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from interfaces import IBlobScorer
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from zope.interface import implements
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class PeerScoreBasedScorer(object):
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implements(IBlobScorer)
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def __init__(self):
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pass
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def score_blob(self, blob, blob_info):
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return blob_info.peer_score, 1
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class LengthBasedScorer(object):
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implements(IBlobScorer)
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def __init__(self):
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pass
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def score_blob(self, blob, blob_info):
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return 0, 1.0 * blob.get_length() / 2**21
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class BlindRepeater(object):
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def __init__(self, peer_finder, rate_limiter, blob_manager, info_manager, wallet, payment_rate_manager):
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self.peer_finder = peer_finder
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self.rate_limiter = rate_limiter
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self.blob_manager = blob_manager
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self.info_manager = info_manager
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self.wallet = wallet
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self.payment_rate_manager = payment_rate_manager
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self.download_manager = None
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self.progress_manager = None
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self.max_space = 0
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self.peers = defaultdict(int)
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self.approved_peers = set()
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self.stopped = True
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def setup(self):
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return defer.succeed(True)
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def start(self):
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if self.stopped is True:
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return self._start()
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else:
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return defer.fail(Failure(ValueError("The repeater is already running")))
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def stop(self):
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if self.stopped is False:
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return self._stop()
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else:
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return defer.fail(Failure(ValueError("The repeater is not running")))
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def status(self):
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if self.stopped is True:
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return "stopped"
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else:
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return "running"
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def set_max_space(self, max_space):
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self.max_space = max_space
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if self.progress_manager is not None:
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self.progress_manager.set_max_space(self.max_space)
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def add_approved_peer(self, peer):
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self.approved_peers.add(peer)
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def remove_approved_peer(self, peer):
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self.approved_peers.remove(peer)
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def _start(self):
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self.download_manager = DownloadManager(self.blob_manager, True)
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info_finder = BlindMetadataHandler(self.info_manager, self.peers, self.peer_finder,
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self.approved_peers, self.payment_rate_manager,
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self.wallet, self.download_manager)
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self.download_manager.blob_info_finder = info_finder
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blob_requester = BlobRequester(self.blob_manager, self.peer_finder, self.payment_rate_manager,
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self.wallet, self.download_manager)
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self.download_manager.blob_requester = blob_requester
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self.progress_manager = BlindProgressManager(self.blob_manager, self.peers, self.max_space,
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[PeerScoreBasedScorer(), LengthBasedScorer()],
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self.download_manager)
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self.download_manager.progress_manager = self.progress_manager
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self.download_manager.blob_handler = BlindBlobHandler()
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wallet_info_exchanger = self.wallet.get_info_exchanger()
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self.download_manager.wallet_info_exchanger = wallet_info_exchanger
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connection_manager = ConnectionManager(self, self.rate_limiter, [info_finder, blob_requester],
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[wallet_info_exchanger])
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self.download_manager.connection_manager = connection_manager
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d = defer.maybeDeferred(self.download_manager.start_downloading)
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d.addCallback(lambda _: self._update_status(stopped=False))
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return d
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def _stop(self):
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d = defer.maybeDeferred(self.download_manager.stop_downloading)
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d.addCallback(lambda _: self._update_status(stopped=True))
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return d
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def _update_status(self, stopped=True):
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self.stopped = stopped
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def insufficient_funds(self):
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return self.stop()
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