forked from LBRYCommunity/lbry-sdk
get reflector client and server working; add func test to prove it
This commit is contained in:
Jimmy Kiselak
parent
b7e2e87ac1
commit
7e2ad58edd
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@ -51,6 +51,7 @@ 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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log = logging.getLogger(__name__)
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@ -74,8 +75,11 @@ class LBRYFileReflectorClient(Protocol):
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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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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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def dataReceived(self, data):
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self.response_buff += data
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@ -86,45 +90,64 @@ class LBRYFileReflectorClient(Protocol):
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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.addCallbacks(lambda _: self.send_next_request(), self.response_failure_handler)
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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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pass
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if reason.check(error.ConnectionDone):
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self.factory.finished_deferred.callback(True)
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else:
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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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assert streaming is True
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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.transport.loseConnection()
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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 get_blobs_to_send(self, stream_info_manager, stream_hash):
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d = stream_info_manager.get_blobs_for_stream(stream_hash)
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def set_blobs(blob_hashes):
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for blob_hash, position, iv, length in blob_hashes:
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if blob_hash is not None:
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self.blob_hashes_to_send.append(blob_hash)
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d.addCallback(set_blobs)
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d.addCallback(lambda _: stream_info_manager.get_sd_blob_hashes_for_stream)
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d.addCallback(lambda _: stream_info_manager.get_sd_blob_hashes_for_stream(stream_hash))
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def set_sd_blobs(sd_blob_hashes):
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for sd_blob_hash, in sd_blob_hashes:
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for sd_blob_hash in sd_blob_hashes:
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self.blob_hashes_to_send.append(sd_blob_hash)
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d.addCallback(set_sd_blobs)
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return d
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def send_handshake(self):
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self.write(json.dumps({'version': 0}))
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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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@ -132,15 +155,15 @@ class LBRYFileReflectorClient(Protocol):
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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.currently_uploading is not None:
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self.currently_uploading.close_read_handle(self.read_handle)
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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.currently_uploading = 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.write(json.dumps("{}"))
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log.info("Starting the file upload")
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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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@ -152,14 +175,15 @@ class LBRYFileReflectorClient(Protocol):
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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.next_blob_to_send is not None: # Expecting Server Info Response
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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 True
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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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@ -175,13 +199,13 @@ class LBRYFileReflectorClient(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")
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raise ValueError("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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assert self.next_blob_to_send is not None, "need to have a next blob to send at this point"
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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_length': self.next_blob_to_send.length
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'blob_size': self.next_blob_to_send.length
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}))
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def send_next_request(self):
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@ -210,6 +234,7 @@ class LBRYFileReflectorClientFactory(ClientFactory):
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self.stream_info_manager = stream_info_manager
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self.stream_hash = stream_hash
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self.p = None
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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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@ -1,6 +1,6 @@
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import logging
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from twisted.python import failure
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from twisted.internet import error
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from twisted.internet import error, defer
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from twisted.internet.protocol import Protocol, ServerFactory
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import json
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@ -72,7 +72,8 @@ class ReflectorServer(Protocol):
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self.peer_version = int(request_dict['version'])
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if self.peer_version != 0:
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raise ValueError("I don't know that version!")
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return {'version': 0}
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self.received_handshake = True
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return defer.succeed({'version': 0})
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def determine_blob_needed(self, blob):
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if blob.is_validated():
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@ -87,6 +88,7 @@ class ReflectorServer(Protocol):
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self.blob_write = None
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self.cancel_write = None
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self.incoming_blob = None
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self.receiving_blob = False
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def handle_normal_request(self, request_dict):
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if self.blob_write is None:
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@ -113,11 +115,10 @@ class ReflectorServer(Protocol):
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d = self.blob_finished_d
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d.addCallback(lambda _: self.close_blob())
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d.addCallback(lambda _: {'received_blob': True})
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d.addCallback(self.send_response)
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return d
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def send_response(self, response_dict):
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self.write(json.dumps(response_dict))
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self.transport.write(json.dumps(response_dict))
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def handle_error(self, err):
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pass
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@ -26,7 +26,7 @@ from lbrynet.core.StreamDescriptor import download_sd_blob
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from lbrynet.lbryfilemanager.LBRYFileCreator import create_lbry_file
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from lbrynet.lbryfile.client.LBRYFileOptions import add_lbry_file_to_sd_identifier
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from lbrynet.lbryfile.StreamDescriptor import get_sd_info
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from twisted.internet import defer, threads, task
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from twisted.internet import defer, threads, task, error
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from twisted.trial.unittest import TestCase
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from twisted.python.failure import Failure
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import os
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@ -38,6 +38,10 @@ from lbrynet.core.server.ServerProtocol import ServerProtocolFactory
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from lbrynet.lbrylive.server.LiveBlobInfoQueryHandler import CryptBlobInfoQueryHandlerFactory
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from lbrynet.lbrylive.client.LiveStreamOptions import add_live_stream_to_sd_identifier
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from lbrynet.lbrylive.client.LiveStreamDownloader import add_full_live_stream_downloader_to_sd_identifier
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from lbrynet.core.BlobManager import TempBlobManager
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from lbrynet.reflector.client.client import LBRYFileReflectorClientFactory
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from lbrynet.reflector.server.server import ReflectorServerFactory
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from lbrynet.lbryfile.StreamDescriptor import publish_sd_blob
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log_format = "%(funcName)s(): %(message)s"
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@ -1370,3 +1374,146 @@ class TestStreamify(TestCase):
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d.addCallback(lambda _: create_stream())
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d.addCallback(combine_stream)
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return d
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class TestReflector(TestCase):
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def setUp(self):
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self.session = None
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self.stream_info_manager = None
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self.lbry_file_manager = None
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self.server_blob_manager = None
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self.reflector_port = None
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self.addCleanup(self.take_down_env)
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def take_down_env(self):
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d = defer.succeed(True)
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if self.lbry_file_manager is not None:
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d.addCallback(lambda _: self.lbry_file_manager.stop())
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if self.session is not None:
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d.addCallback(lambda _: self.session.shut_down())
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if self.stream_info_manager is not None:
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d.addCallback(lambda _: self.stream_info_manager.stop())
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if self.server_blob_manager is not None:
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d.addCallback(lambda _: self.server_blob_manager.stop())
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if self.reflector_port is not None:
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d.addCallback(lambda _: self.reflector_port.stopListening())
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def delete_test_env():
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shutil.rmtree('client')
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d.addCallback(lambda _: threads.deferToThread(delete_test_env))
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return d
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def test_reflector(self):
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wallet = FakeWallet()
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peer_manager = PeerManager()
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peer_finder = FakePeerFinder(5553, peer_manager, 2)
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hash_announcer = FakeAnnouncer()
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rate_limiter = DummyRateLimiter()
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sd_identifier = StreamDescriptorIdentifier()
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self.expected_blobs = [
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('dc4708f76a5e7af0f1cae0ee96b824e2ed9250c9346c093b'
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'441f0a20d3607c17948b6fcfb4bc62020fe5286693d08586', 2097152),
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('f4067522c1b49432a2a679512e3917144317caa1abba0c04'
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'1e0cd2cf9f635d4cf127ce1824fa04189b63916174951f70', 2097152),
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('305486c434260484fcb2968ce0e963b72f81ba56c11b08b1'
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'af0789b55b44d78422600f9a38e3cf4f2e9569897e5646a9', 1015056),
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]
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db_dir = "client"
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os.mkdir(db_dir)
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self.session = LBRYSession(MIN_BLOB_DATA_PAYMENT_RATE, db_dir=db_dir, lbryid="abcd",
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peer_finder=peer_finder, hash_announcer=hash_announcer,
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blob_dir=None, peer_port=5553,
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use_upnp=False, rate_limiter=rate_limiter, wallet=wallet)
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self.stream_info_manager = TempLBRYFileMetadataManager()
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self.lbry_file_manager = LBRYFileManager(self.session, self.stream_info_manager, sd_identifier)
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self.server_blob_manager = TempBlobManager(hash_announcer)
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d = self.session.setup()
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d.addCallback(lambda _: self.stream_info_manager.setup())
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d.addCallback(lambda _: add_lbry_file_to_sd_identifier(sd_identifier))
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d.addCallback(lambda _: self.lbry_file_manager.setup())
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d.addCallback(lambda _: self.server_blob_manager.setup())
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def verify_equal(sd_info):
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self.assertEqual(sd_info, test_create_stream_sd_file)
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def save_sd_blob_hash(sd_hash):
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self.expected_blobs.append((sd_hash, 923))
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def verify_stream_descriptor_file(stream_hash):
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d = get_sd_info(self.lbry_file_manager.stream_info_manager, stream_hash, True)
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d.addCallback(verify_equal)
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d.addCallback(lambda _: publish_sd_blob(self.lbry_file_manager.stream_info_manager, self.session.blob_manager, stream_hash))
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d.addCallback(save_sd_blob_hash)
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d.addCallback(lambda _: stream_hash)
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return d
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def iv_generator():
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iv = 0
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while 1:
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iv += 1
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yield "%016d" % iv
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def create_stream():
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test_file = GenFile(5209343, b''.join([chr(i + 3) for i in xrange(0, 64, 6)]))
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d = create_lbry_file(self.session, self.lbry_file_manager, "test_file", test_file,
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key="0123456701234567", iv_generator=iv_generator())
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return d
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def start_server():
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server_factory = ReflectorServerFactory(peer_manager, self.server_blob_manager)
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from twisted.internet import reactor
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port = 8943
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while self.reflector_port is None:
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try:
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self.reflector_port = reactor.listenTCP(port, server_factory)
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except error.CannotListenError:
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port += 1
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return defer.succeed(port)
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def send_to_server(port, stream_hash):
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factory = LBRYFileReflectorClientFactory(
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self.session.blob_manager,
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self.stream_info_manager,
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stream_hash
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)
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from twisted.internet import reactor
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reactor.connectTCP('localhost', port, factory)
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return factory.finished_deferred
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def verify_blob_completed(blob, blob_size):
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self.assertTrue(blob.is_validated())
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self.assertEqual(blob_size, blob.length)
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def verify_have_blob(blob_hash, blob_size):
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d = self.server_blob_manager.get_blob(blob_hash, True)
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d.addCallback(lambda blob: verify_blob_completed(blob, blob_size))
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return d
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def verify_data_on_reflector():
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check_blob_ds = []
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for blob_hash, blob_size in self.expected_blobs:
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check_blob_ds.append(verify_have_blob(blob_hash, blob_size))
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return defer.DeferredList(check_blob_ds)
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def upload_to_reflector(stream_hash):
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d = start_server()
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d.addCallback(lambda port: send_to_server(port, stream_hash))
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d.addCallback(lambda _: verify_data_on_reflector())
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return d
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d.addCallback(lambda _: create_stream())
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d.addCallback(verify_stream_descriptor_file)
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d.addCallback(upload_to_reflector)
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return d
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