Merge pull request #262 from lbryio/dry-reflector
Remove repeated code for reflector
This commit is contained in:
Job Evers‐Meltzer
GitHub
commit
ebc400804f
6 changed files with 236 additions and 228 deletions
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@ -341,7 +341,6 @@ class HashBlobCreator(object):
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else:
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self.blob_hash = self.hashsum.hexdigest()
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d = self._close()
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if self.blob_hash is not None:
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d.addCallback(lambda _: self.blob_manager.creator_finished(self))
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d.addCallback(lambda _: self.blob_hash)
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@ -394,4 +393,4 @@ class TempBlobCreator(HashBlobCreator):
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return defer.succeed(True)
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def _write(self, data):
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self.data_buffer += data
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self.data_buffer += data
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@ -1022,44 +1022,26 @@ class Daemon(AuthJSONRPCServer):
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def _reflect(self, lbry_file):
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if not lbry_file:
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return defer.fail(Exception("no lbry file given to reflect"))
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stream_hash = lbry_file.stream_hash
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if stream_hash is None:
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return defer.fail(Exception("no stream hash"))
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log.info("Reflecting stream: %s" % stream_hash)
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reflector_server = random.choice(lbrynet_settings.reflector_servers)
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reflector_address, reflector_port = reflector_server[0], reflector_server[1]
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log.info("Start reflector client")
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factory = reflector.ClientFactory(
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self.session.blob_manager,
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self.lbry_file_manager.stream_info_manager,
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stream_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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return d
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return run_reflector_factory(factory)
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def _reflect_blobs(self, blob_hashes):
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if not blob_hashes:
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return defer.fail(Exception("no lbry file given to reflect"))
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log.info("Reflecting %i blobs" % len(blob_hashes))
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reflector_server = random.choice(lbrynet_settings.reflector_servers)
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reflector_address, reflector_port = reflector_server[0], reflector_server[1]
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log.info("Start reflector client")
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factory = reflector.BlobClientFactory(
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self.session.blob_manager,
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blob_hashes
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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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return d
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return run_reflector_factory(factory)
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def _log_to_slack(self, msg):
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URL = "https://hooks.slack.com/services/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"
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@ -2701,3 +2683,13 @@ def handle_failure(err, msg):
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#
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# If so, maybe we should return something else.
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return server.failure
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def run_reflector_factory(factory):
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reflector_server = random.choice(lbrynet_settings.reflector_servers)
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reflector_address, reflector_port = reflector_server
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log.info("Start reflector client")
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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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return d
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@ -1,4 +1,4 @@
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from lbrynet.reflector.server.server import ReflectorServerFactory as ServerFactory
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from lbrynet.reflector.client.client import EncryptedFileReflectorClientFactory as ClientFactory
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from lbrynet.reflector.client.client import BlobReflectorClientFactory as BlobClientFactory
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from lbrynet.reflector import reupload
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from lbrynet.reflector.client.blob import BlobReflectorClientFactory as BlobClientFactory
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from lbrynet.reflector import reupload
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210
lbrynet/reflector/client/blob.py
Normal file
210
lbrynet/reflector/client/blob.py
Normal file
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@ -0,0 +1,210 @@
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import json
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import logging
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from twisted.protocols.basic import FileSender
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from twisted.internet.protocol import Protocol, ClientFactory
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from twisted.internet import defer, error
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from lbrynet.core import log_support
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from lbrynet.reflector.common import IncompleteResponse
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log = logging.getLogger(__name__)
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class BlobReflectorClient(Protocol):
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# Protocol stuff
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def connectionMade(self):
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self.blob_manager = self.factory.blob_manager
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self.response_buff = ''
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self.outgoing_buff = ''
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self.blob_hashes_to_send = self.factory.blobs
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self.next_blob_to_send = None
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self.blob_read_handle = None
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self.received_handshake_response = False
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self.protocol_version = None
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self.file_sender = None
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self.producer = None
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self.streaming = False
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self.sent_blobs = False
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d = self.send_handshake()
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d.addErrback(
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lambda err: log.warning("An error occurred immediately: %s", err.getTraceback()))
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def dataReceived(self, data):
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log.debug('Recieved %s', data)
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self.response_buff += data
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try:
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msg = self.parse_response(self.response_buff)
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except IncompleteResponse:
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pass
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else:
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self.response_buff = ''
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d = self.handle_response(msg)
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d.addCallback(lambda _: self.send_next_request())
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d.addErrback(self.response_failure_handler)
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def connectionLost(self, reason):
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if reason.check(error.ConnectionDone):
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self.factory.sent_blobs = self.sent_blobs
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if self.factory.sent_blobs:
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log.info('Finished sending data via reflector')
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self.factory.finished_deferred.callback(True)
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else:
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log.info('Reflector finished: %s', reason)
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self.factory.finished_deferred.callback(reason)
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# IConsumer stuff
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def registerProducer(self, producer, streaming):
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self.producer = producer
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self.streaming = streaming
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if self.streaming is False:
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from twisted.internet import reactor
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reactor.callLater(0, self.producer.resumeProducing)
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def unregisterProducer(self):
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self.producer = None
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def write(self, data):
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self.transport.write(data)
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if self.producer is not None and self.streaming is False:
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from twisted.internet import reactor
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reactor.callLater(0, self.producer.resumeProducing)
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def send_handshake(self):
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log.debug('Sending handshake')
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self.write(json.dumps({'version': 0}))
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return defer.succeed(None)
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def parse_response(self, buff):
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try:
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return json.loads(buff)
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except ValueError:
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raise IncompleteResponse()
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def response_failure_handler(self, err):
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log.warning("An error occurred handling the response: %s", err.getTraceback())
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def handle_response(self, response_dict):
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if self.received_handshake_response is False:
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return self.handle_handshake_response(response_dict)
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else:
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return self.handle_normal_response(response_dict)
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def set_not_uploading(self):
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if self.next_blob_to_send is not None:
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self.next_blob_to_send.close_read_handle(self.read_handle)
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self.read_handle = None
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self.next_blob_to_send = None
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self.file_sender = None
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return defer.succeed(None)
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def start_transfer(self):
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self.sent_blobs = True
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self.write(json.dumps({}))
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assert self.read_handle is not None, "self.read_handle was None when trying to start the transfer"
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d = self.file_sender.beginFileTransfer(self.read_handle, self)
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return d
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def handle_handshake_response(self, response_dict):
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if 'version' not in response_dict:
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raise ValueError("Need protocol version number!")
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self.protocol_version = int(response_dict['version'])
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if self.protocol_version != 0:
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raise ValueError("I can't handle protocol version {}!".format(self.protocol_version))
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self.received_handshake_response = True
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return defer.succeed(True)
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def handle_normal_response(self, response_dict):
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if self.file_sender is None: # Expecting Server Info Response
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if 'send_blob' not in response_dict:
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raise ValueError("I don't know whether to send the blob or not!")
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if response_dict['send_blob'] is True:
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self.file_sender = FileSender()
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return defer.succeed(True)
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else:
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return self.set_not_uploading()
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else: # Expecting Server Blob Response
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if 'received_blob' not in response_dict:
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raise ValueError("I don't know if the blob made it to the intended destination!")
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else:
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return self.set_not_uploading()
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def open_blob_for_reading(self, blob):
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if blob.is_validated():
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read_handle = blob.open_for_reading()
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if read_handle is not None:
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log.debug('Getting ready to send %s', blob.blob_hash)
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self.next_blob_to_send = blob
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self.read_handle = read_handle
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return None
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raise ValueError(
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"Couldn't open that blob for some reason. blob_hash: {}".format(blob.blob_hash))
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def send_blob_info(self):
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log.debug("Send blob info for %s", self.next_blob_to_send.blob_hash)
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assert self.next_blob_to_send is not None, "need to have a next blob to send at this point"
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log.debug('sending blob info')
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self.write(json.dumps({
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'blob_hash': self.next_blob_to_send.blob_hash,
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'blob_size': self.next_blob_to_send.length
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}))
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def log_fail_and_disconnect(self, err, blob_hash):
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log_support.failure(err, log, "Error reflecting blob %s: %s", blob_hash)
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self.transport.loseConnection()
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def send_next_request(self):
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if self.file_sender is not None:
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# send the blob
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log.debug('Sending the blob')
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return self.start_transfer()
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elif self.blob_hashes_to_send:
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# open the next blob to send
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blob_hash = self.blob_hashes_to_send[0]
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log.debug('No current blob, sending the next one: %s', blob_hash)
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self.blob_hashes_to_send = self.blob_hashes_to_send[1:]
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d = self.blob_manager.get_blob(blob_hash, True)
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d.addCallback(self.open_blob_for_reading)
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# send the server the next blob hash + length
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d.addCallbacks(
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lambda _: self.send_blob_info(),
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lambda err: self.log_fail_and_disconnect(err, blob_hash))
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return d
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else:
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# close connection
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log.debug('No more blob hashes, closing connection')
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self.transport.loseConnection()
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class BlobReflectorClientFactory(ClientFactory):
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protocol = BlobReflectorClient
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def __init__(self, blob_manager, blobs):
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self.blob_manager = blob_manager
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self.blobs = blobs
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self.p = None
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self.sent_blobs = False
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self.finished_deferred = defer.Deferred()
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def buildProtocol(self, addr):
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p = self.protocol()
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p.factory = self
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self.p = p
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return p
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def startFactory(self):
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log.debug('Starting reflector factory')
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ClientFactory.startFactory(self)
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def startedConnecting(self, connector):
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log.debug('Started connecting')
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def clientConnectionLost(self, connector, reason):
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"""If we get disconnected, reconnect to server."""
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log.debug("connection lost: %s", reason.getErrorMessage())
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def clientConnectionFailed(self, connector, reason):
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log.debug("connection failed: %s", reason.getErrorMessage())
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@ -49,22 +49,19 @@ Client may now send another Client Info Request
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"""
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import json
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import logging
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from twisted.protocols.basic import FileSender
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from twisted.internet.protocol import Protocol, ClientFactory
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from twisted.internet import defer, error
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from lbrynet.reflector.common import IncompleteResponse
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log = logging.getLogger(__name__)
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class IncompleteResponseError(Exception):
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pass
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class EncryptedFileReflectorClient(Protocol):
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# Protocol stuff
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def connectionMade(self):
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self.blob_manager = self.factory.blob_manager
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self.response_buff = ''
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@ -79,14 +76,15 @@ class EncryptedFileReflectorClient(Protocol):
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self.streaming = False
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d = self.get_blobs_to_send(self.factory.stream_info_manager, self.factory.stream_hash)
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d.addCallback(lambda _: self.send_handshake())
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d.addErrback(lambda err: log.warning("An error occurred immediately: %s", err.getTraceback()))
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d.addErrback(
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lambda err: log.warning("An error occurred immediately: %s", err.getTraceback()))
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def dataReceived(self, data):
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log.debug('Recieved %s', data)
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self.response_buff += data
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try:
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msg = self.parse_response(self.response_buff)
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except IncompleteResponseError:
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except IncompleteResponse:
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pass
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else:
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self.response_buff = ''
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@ -149,7 +147,7 @@ class EncryptedFileReflectorClient(Protocol):
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try:
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return json.loads(buff)
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except ValueError:
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raise IncompleteResponseError()
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raise IncompleteResponse()
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def response_failure_handler(self, err):
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log.warning("An error occurred handling the response: %s", err.getTraceback())
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@ -206,7 +204,8 @@ class EncryptedFileReflectorClient(Protocol):
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self.next_blob_to_send = blob
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self.read_handle = read_handle
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return None
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raise ValueError("Couldn't open that blob for some reason. blob_hash: {}".format(blob.blob_hash))
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raise ValueError(
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"Couldn't open that blob for some reason. blob_hash: {}".format(blob.blob_hash))
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def send_blob_info(self):
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log.debug("Send blob info for %s", self.next_blob_to_send.blob_hash)
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@ -254,200 +253,6 @@ class EncryptedFileReflectorClientFactory(ClientFactory):
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self.p = p
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return p
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def startFactory(self):
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log.debug('Starting reflector factory')
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ClientFactory.startFactory(self)
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def startedConnecting(self, connector):
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log.debug('Started connecting')
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def clientConnectionLost(self, connector, reason):
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"""If we get disconnected, reconnect to server."""
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log.debug("connection lost: %s", reason)
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def clientConnectionFailed(self, connector, reason):
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log.debug("connection failed: %s", reason)
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class BlobReflectorClient(Protocol):
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# Protocol stuff
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def connectionMade(self):
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self.blob_manager = self.factory.blob_manager
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self.response_buff = ''
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self.outgoing_buff = ''
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self.blob_hashes_to_send = self.factory.blobs
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self.next_blob_to_send = None
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self.blob_read_handle = None
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self.received_handshake_response = False
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self.protocol_version = None
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self.file_sender = None
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self.producer = None
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self.streaming = False
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self.sent_blobs = False
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d = self.send_handshake()
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d.addErrback(lambda err: log.warning("An error occurred immediately: %s", err.getTraceback()))
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def dataReceived(self, data):
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log.debug('Recieved %s', data)
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self.response_buff += data
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try:
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msg = self.parse_response(self.response_buff)
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except IncompleteResponseError:
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pass
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else:
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self.response_buff = ''
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d = self.handle_response(msg)
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d.addCallback(lambda _: self.send_next_request())
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d.addErrback(self.response_failure_handler)
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def connectionLost(self, reason):
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if reason.check(error.ConnectionDone):
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self.factory.sent_blobs = self.sent_blobs
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if self.factory.sent_blobs:
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log.info('Finished sending data via reflector')
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self.factory.finished_deferred.callback(True)
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else:
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log.info('Reflector finished: %s', reason)
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self.factory.finished_deferred.callback(reason)
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# IConsumer stuff
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def registerProducer(self, producer, streaming):
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self.producer = producer
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self.streaming = streaming
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if self.streaming is False:
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from twisted.internet import reactor
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reactor.callLater(0, self.producer.resumeProducing)
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def unregisterProducer(self):
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self.producer = None
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def write(self, data):
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self.transport.write(data)
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if self.producer is not None and self.streaming is False:
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from twisted.internet import reactor
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reactor.callLater(0, self.producer.resumeProducing)
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def send_handshake(self):
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log.debug('Sending handshake')
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self.write(json.dumps({'version': 0}))
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return defer.succeed(None)
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def parse_response(self, buff):
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try:
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return json.loads(buff)
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except ValueError:
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raise IncompleteResponseError()
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def response_failure_handler(self, err):
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log.warning("An error occurred handling the response: %s", err.getTraceback())
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def handle_response(self, response_dict):
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if self.received_handshake_response is False:
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return self.handle_handshake_response(response_dict)
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else:
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return self.handle_normal_response(response_dict)
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def set_not_uploading(self):
|
||||
if self.next_blob_to_send is not None:
|
||||
self.next_blob_to_send.close_read_handle(self.read_handle)
|
||||
self.read_handle = None
|
||||
self.next_blob_to_send = None
|
||||
self.file_sender = None
|
||||
return defer.succeed(None)
|
||||
|
||||
def start_transfer(self):
|
||||
self.sent_blobs = True
|
||||
self.write(json.dumps({}))
|
||||
assert self.read_handle is not None, "self.read_handle was None when trying to start the transfer"
|
||||
d = self.file_sender.beginFileTransfer(self.read_handle, self)
|
||||
return d
|
||||
|
||||
def handle_handshake_response(self, response_dict):
|
||||
if 'version' not in response_dict:
|
||||
raise ValueError("Need protocol version number!")
|
||||
self.protocol_version = int(response_dict['version'])
|
||||
if self.protocol_version != 0:
|
||||
raise ValueError("I can't handle protocol version {}!".format(self.protocol_version))
|
||||
self.received_handshake_response = True
|
||||
return defer.succeed(True)
|
||||
|
||||
def handle_normal_response(self, response_dict):
|
||||
if self.file_sender is None: # Expecting Server Info Response
|
||||
if 'send_blob' not in response_dict:
|
||||
raise ValueError("I don't know whether to send the blob or not!")
|
||||
if response_dict['send_blob'] is True:
|
||||
self.file_sender = FileSender()
|
||||
return defer.succeed(True)
|
||||
else:
|
||||
return self.set_not_uploading()
|
||||
else: # Expecting Server Blob Response
|
||||
if 'received_blob' not in response_dict:
|
||||
raise ValueError("I don't know if the blob made it to the intended destination!")
|
||||
else:
|
||||
return self.set_not_uploading()
|
||||
|
||||
def open_blob_for_reading(self, blob):
|
||||
if blob.is_validated():
|
||||
read_handle = blob.open_for_reading()
|
||||
if read_handle is not None:
|
||||
log.debug('Getting ready to send %s', blob.blob_hash)
|
||||
self.next_blob_to_send = blob
|
||||
self.read_handle = read_handle
|
||||
return None
|
||||
raise ValueError("Couldn't open that blob for some reason. blob_hash: {}".format(blob.blob_hash))
|
||||
|
||||
def send_blob_info(self):
|
||||
log.debug("Send blob info for %s", self.next_blob_to_send.blob_hash)
|
||||
assert self.next_blob_to_send is not None, "need to have a next blob to send at this point"
|
||||
log.debug('sending blob info')
|
||||
self.write(json.dumps({
|
||||
'blob_hash': self.next_blob_to_send.blob_hash,
|
||||
'blob_size': self.next_blob_to_send.length
|
||||
}))
|
||||
|
||||
def log_fail_and_disconnect(self, err, blob_hash):
|
||||
log.error("Error reflecting blob %s", blob_hash)
|
||||
self.transport.loseConnection()
|
||||
|
||||
def send_next_request(self):
|
||||
if self.file_sender is not None:
|
||||
# send the blob
|
||||
log.debug('Sending the blob')
|
||||
return self.start_transfer()
|
||||
elif self.blob_hashes_to_send:
|
||||
# open the next blob to send
|
||||
blob_hash = self.blob_hashes_to_send[0]
|
||||
log.debug('No current blob, sending the next one: %s', blob_hash)
|
||||
self.blob_hashes_to_send = self.blob_hashes_to_send[1:]
|
||||
d = self.blob_manager.get_blob(blob_hash, True)
|
||||
d.addCallback(self.open_blob_for_reading)
|
||||
# send the server the next blob hash + length
|
||||
d.addCallbacks(lambda _: self.send_blob_info(), lambda err: self.log_fail_and_disconnect(err, blob_hash))
|
||||
return d
|
||||
else:
|
||||
# close connection
|
||||
log.debug('No more blob hashes, closing connection')
|
||||
self.transport.loseConnection()
|
||||
|
||||
|
||||
class BlobReflectorClientFactory(ClientFactory):
|
||||
protocol = BlobReflectorClient
|
||||
|
||||
def __init__(self, blob_manager, blobs):
|
||||
self.blob_manager = blob_manager
|
||||
self.blobs = blobs
|
||||
self.p = None
|
||||
self.sent_blobs = False
|
||||
self.finished_deferred = defer.Deferred()
|
||||
|
||||
def buildProtocol(self, addr):
|
||||
p = self.protocol()
|
||||
p.factory = self
|
||||
self.p = p
|
||||
return p
|
||||
|
||||
def startFactory(self):
|
||||
log.debug('Starting reflector factory')
|
||||
ClientFactory.startFactory(self)
|
||||
|
|
|
|||
2
lbrynet/reflector/common.py
Normal file
2
lbrynet/reflector/common.py
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
class IncompleteResponse(Exception):
|
||||
pass
|
||||
Loading…
Reference in a new issue