54 lines
1.8 KiB
Python
54 lines
1.8 KiB
Python
import logging
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from twisted.internet import reactor
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from twisted.internet.error import ConnectionLost, ConnectionDone
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from lbrynet.reflector import BlobClientFactory, ClientFactory
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log = logging.getLogger(__name__)
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def _check_if_reflector_has_stream(lbry_file, reflector_server):
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reflector_address, reflector_port = reflector_server[0], reflector_server[1]
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factory = BlobClientFactory(
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lbry_file.blob_manager,
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[lbry_file.sd_hash]
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)
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d = reactor.resolve(reflector_address)
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d.addCallback(lambda ip: reactor.connectTCP(ip, reflector_port, factory))
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d.addCallback(lambda _: factory.finished_deferred)
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d.addCallback(lambda _: not factory.sent_blobs)
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return d
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def log_result(result, uri):
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if len(result) == 0:
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log.info("Reflector has all blobs for lbry://%s", uri)
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else:
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log.info("Reflected %i blobs for lbry://%s", len(result), uri)
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def _reflect_stream(lbry_file, reflector_server):
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reflector_address, reflector_port = reflector_server[0], reflector_server[1]
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factory = ClientFactory(
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lbry_file.blob_manager,
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lbry_file.stream_info_manager,
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lbry_file.stream_hash,
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lbry_file.uri
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)
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d = reactor.resolve(reflector_address)
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d.addCallback(lambda ip: reactor.connectTCP(ip, reflector_port, factory))
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d.addCallback(lambda _: factory.finished_deferred)
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d.addCallback(log_result, lbry_file.uri)
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return d
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def _catch_error(err, uri):
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msg = "An error occurred while checking availability for lbry://%s: %s"
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log.error(msg, uri, err.getTraceback())
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def check_and_restore_availability(lbry_file, reflector_server):
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d = _reflect_stream(lbry_file, reflector_server)
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d.addErrback(lambda err: err.trap(ConnectionDone, ConnectionLost))
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d.addErrback(_catch_error, lbry_file.uri)
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return d
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