lbry-sdk/tests/functional/test_misc.py

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import logging
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from multiprocessing import Process, Event, Queue
import os
import platform
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import shutil
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import sys
import random
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import unittest
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from Crypto import Random
from Crypto.Hash import MD5
from lbrynet import conf
from lbrynet.lbry_file.EncryptedFileMetadataManager import TempEncryptedFileMetadataManager
from lbrynet.lbry_file.EncryptedFileMetadataManager import DBEncryptedFileMetadataManager
from lbrynet.file_manager.EncryptedFileManager import EncryptedFileManager
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from lbrynet.core.Session import Session
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from lbrynet.core.server.BlobAvailabilityHandler import BlobAvailabilityHandlerFactory
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from lbrynet.core.client.StandaloneBlobDownloader import StandaloneBlobDownloader
from lbrynet.core.StreamDescriptor import BlobStreamDescriptorWriter
from lbrynet.core.StreamDescriptor import StreamDescriptorIdentifier
from lbrynet.core.StreamDescriptor import download_sd_blob
from lbrynet.file_manager.EncryptedFileCreator import create_lbry_file
from lbrynet.lbry_file.client.EncryptedFileOptions import add_lbry_file_to_sd_identifier
from lbrynet.lbry_file.StreamDescriptor import get_sd_info
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from twisted.internet import defer, threads, task
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from twisted.trial.unittest import TestCase
from twisted.python.failure import Failure
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from lbrynet.dht.node import Node
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from lbrynet.core.PeerManager import PeerManager
from lbrynet.core.RateLimiter import DummyRateLimiter, RateLimiter
from lbrynet.core.server.BlobRequestHandler import BlobRequestHandlerFactory
from lbrynet.core.server.ServerProtocol import ServerProtocolFactory
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from tests import mocks
FakeNode = mocks.Node
FakeWallet = mocks.Wallet
FakePeerFinder = mocks.PeerFinder
FakeAnnouncer = mocks.Announcer
GenFile = mocks.GenFile
test_create_stream_sd_file = mocks.create_stream_sd_file
DummyBlobAvailabilityTracker = mocks.BlobAvailabilityTracker
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log_format = "%(funcName)s(): %(message)s"
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logging.basicConfig(level=logging.CRITICAL, format=log_format)
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def require_system(system):
def wrapper(fn):
return fn
if platform.system() == system:
return wrapper
else:
return unittest.skip("Skipping. Test can only be run on " + system)
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def use_epoll_on_linux():
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if sys.platform.startswith("linux"):
sys.modules = sys.modules.copy()
del sys.modules['twisted.internet.reactor']
import twisted.internet
twisted.internet.reactor = twisted.internet.epollreactor.EPollReactor()
sys.modules['twisted.internet.reactor'] = twisted.internet.reactor
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class LbryUploader(object):
def __init__(self, sd_hash_queue, kill_event, dead_event,
file_size, ul_rate_limit=None, is_generous=False):
self.sd_hash_queue = sd_hash_queue
self.kill_event = kill_event
self.dead_event = dead_event
self.file_size = file_size
self.ul_rate_limit = ul_rate_limit
self.is_generous = is_generous
# these attributes get defined in `start`
self.reactor = None
self.sd_identifier = None
self.session = None
self.lbry_file_manager = None
self.server_port = None
self.kill_check = None
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def start(self):
use_epoll_on_linux()
from twisted.internet import reactor
self.reactor = reactor
logging.debug("Starting the uploader")
Random.atfork()
r = random.Random()
r.seed("start_lbry_uploader")
wallet = FakeWallet()
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, 1)
hash_announcer = FakeAnnouncer()
rate_limiter = RateLimiter()
self.sd_identifier = StreamDescriptorIdentifier()
db_dir = "server"
os.mkdir(db_dir)
self.session = Session(
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conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir, lbryid="abcd",
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peer_finder=peer_finder, hash_announcer=hash_announcer, peer_port=5553,
use_upnp=False, rate_limiter=rate_limiter, wallet=wallet,
blob_tracker_class=DummyBlobAvailabilityTracker,
dht_node_class=Node, is_generous=self.is_generous)
stream_info_manager = TempEncryptedFileMetadataManager()
self.lbry_file_manager = EncryptedFileManager(
self.session, stream_info_manager, self.sd_identifier)
if self.ul_rate_limit is not None:
self.session.rate_limiter.set_ul_limit(self.ul_rate_limit)
reactor.callLater(1, self.start_all)
if not reactor.running:
reactor.run()
def start_all(self):
d = self.session.setup()
d.addCallback(lambda _: add_lbry_file_to_sd_identifier(self.sd_identifier))
d.addCallback(lambda _: self.lbry_file_manager.setup())
d.addCallback(lambda _: self.start_server())
d.addCallback(lambda _: self.create_stream())
d.addCallback(self.create_stream_descriptor)
d.addCallback(self.put_sd_hash_on_queue)
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def print_error(err):
logging.critical("Server error: %s", err.getErrorMessage())
d.addErrback(print_error)
return d
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def start_server(self):
session = self.session
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query_handler_factories = {
1: BlobAvailabilityHandlerFactory(session.blob_manager),
2: BlobRequestHandlerFactory(
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session.blob_manager, session.wallet,
session.payment_rate_manager,
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None),
3: session.wallet.get_wallet_info_query_handler_factory(),
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}
server_factory = ServerProtocolFactory(session.rate_limiter,
query_handler_factories,
session.peer_manager)
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self.server_port = self.reactor.listenTCP(5553, server_factory)
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logging.debug("Started listening")
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self.kill_check = task.LoopingCall(self.check_for_kill)
self.kill_check.start(1.0)
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return True
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def kill_server(self):
session = self.session
ds = []
ds.append(session.shut_down())
ds.append(self.lbry_file_manager.stop())
if self.server_port:
ds.append(self.server_port.stopListening())
self.kill_check.stop()
self.dead_event.set()
dl = defer.DeferredList(ds)
dl.addCallback(lambda _: self.reactor.stop())
return dl
def check_for_kill(self):
if self.kill_event.is_set():
self.kill_server()
def create_stream(self):
test_file = GenFile(self.file_size, b''.join([chr(i) for i in xrange(0, 64, 6)]))
d = create_lbry_file(self.session, self.lbry_file_manager, "test_file", test_file)
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return d
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def create_stream_descriptor(self, stream_hash):
descriptor_writer = BlobStreamDescriptorWriter(self.session.blob_manager)
d = get_sd_info(self.lbry_file_manager.stream_info_manager, stream_hash, True)
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d.addCallback(descriptor_writer.create_descriptor)
return d
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def put_sd_hash_on_queue(self, sd_hash):
self.sd_hash_queue.put(sd_hash)
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def start_lbry_reuploader(sd_hash, kill_event, dead_event,
ready_event, n, ul_rate_limit=None, is_generous=False):
use_epoll_on_linux()
from twisted.internet import reactor
logging.debug("Starting the uploader")
Random.atfork()
r = random.Random()
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r.seed("start_lbry_reuploader")
wallet = FakeWallet()
peer_port = 5553 + n
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, 1)
hash_announcer = FakeAnnouncer()
rate_limiter = RateLimiter()
sd_identifier = StreamDescriptorIdentifier()
db_dir = "server_" + str(n)
blob_dir = os.path.join(db_dir, "blobfiles")
os.mkdir(db_dir)
os.mkdir(blob_dir)
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session = Session(conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir,
lbryid="abcd" + str(n),
peer_finder=peer_finder, hash_announcer=hash_announcer,
blob_dir=None, peer_port=peer_port,
use_upnp=False, rate_limiter=rate_limiter, wallet=wallet,
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blob_tracker_class=DummyBlobAvailabilityTracker,
is_generous=conf.ADJUSTABLE_SETTINGS['is_generous_host'][1])
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stream_info_manager = TempEncryptedFileMetadataManager()
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lbry_file_manager = EncryptedFileManager(session, stream_info_manager, sd_identifier)
if ul_rate_limit is not None:
session.rate_limiter.set_ul_limit(ul_rate_limit)
def make_downloader(metadata, prm):
info_validator = metadata.validator
options = metadata.options
factories = metadata.factories
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chosen_options = [o.default_value for o in
options.get_downloader_options(info_validator, prm)]
return factories[0].make_downloader(metadata, chosen_options, prm)
def download_file():
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prm = session.payment_rate_manager
d = download_sd_blob(session, sd_hash, prm)
d.addCallback(sd_identifier.get_metadata_for_sd_blob)
d.addCallback(make_downloader, prm)
d.addCallback(lambda downloader: downloader.start())
return d
def start_transfer():
logging.debug("Starting the transfer")
d = session.setup()
d.addCallback(lambda _: add_lbry_file_to_sd_identifier(sd_identifier))
d.addCallback(lambda _: lbry_file_manager.setup())
d.addCallback(lambda _: download_file())
return d
def start_server():
server_port = None
query_handler_factories = {
1: BlobAvailabilityHandlerFactory(session.blob_manager),
2: BlobRequestHandlerFactory(
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session.blob_manager, session.wallet,
session.payment_rate_manager,
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None),
3: session.wallet.get_wallet_info_query_handler_factory(),
}
server_factory = ServerProtocolFactory(session.rate_limiter,
query_handler_factories,
session.peer_manager)
server_port = reactor.listenTCP(peer_port, server_factory)
logging.debug("Started listening")
def kill_server():
ds = []
ds.append(session.shut_down())
ds.append(lbry_file_manager.stop())
if server_port:
ds.append(server_port.stopListening())
kill_check.stop()
dead_event.set()
dl = defer.DeferredList(ds)
dl.addCallback(lambda _: reactor.stop())
return dl
def check_for_kill():
if kill_event.is_set():
kill_server()
kill_check = task.LoopingCall(check_for_kill)
kill_check.start(1.0)
ready_event.set()
logging.debug("set the ready event")
d = task.deferLater(reactor, 1.0, start_transfer)
d.addCallback(lambda _: start_server())
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if not reactor.running:
reactor.run()
def start_blob_uploader(blob_hash_queue, kill_event, dead_event, slow, is_generous=False):
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use_epoll_on_linux()
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from twisted.internet import reactor
logging.debug("Starting the uploader")
Random.atfork()
wallet = FakeWallet()
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, 1)
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hash_announcer = FakeAnnouncer()
rate_limiter = RateLimiter()
if slow is True:
peer_port = 5553
db_dir = "server1"
else:
peer_port = 5554
db_dir = "server2"
blob_dir = os.path.join(db_dir, "blobfiles")
os.mkdir(db_dir)
os.mkdir(blob_dir)
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session = Session(conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir, lbryid="efgh",
peer_finder=peer_finder, hash_announcer=hash_announcer,
blob_dir=blob_dir, peer_port=peer_port,
use_upnp=False, rate_limiter=rate_limiter, wallet=wallet,
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blob_tracker_class=DummyBlobAvailabilityTracker,
is_generous=conf.ADJUSTABLE_SETTINGS['is_generous_host'][1])
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if slow is True:
session.rate_limiter.set_ul_limit(2 ** 11)
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def start_all():
d = session.setup()
d.addCallback(lambda _: start_server())
d.addCallback(lambda _: create_single_blob())
d.addCallback(put_blob_hash_on_queue)
def print_error(err):
logging.critical("Server error: %s", err.getErrorMessage())
d.addErrback(print_error)
return d
def start_server():
server_port = None
query_handler_factories = {
1: BlobAvailabilityHandlerFactory(session.blob_manager),
2: BlobRequestHandlerFactory(session.blob_manager, session.wallet,
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session.payment_rate_manager,
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None),
3: session.wallet.get_wallet_info_query_handler_factory(),
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}
server_factory = ServerProtocolFactory(session.rate_limiter,
query_handler_factories,
session.peer_manager)
server_port = reactor.listenTCP(peer_port, server_factory)
logging.debug("Started listening")
def kill_server():
ds = []
ds.append(session.shut_down())
if server_port:
ds.append(server_port.stopListening())
kill_check.stop()
dead_event.set()
dl = defer.DeferredList(ds)
dl.addCallback(lambda _: reactor.stop())
return dl
def check_for_kill():
if kill_event.is_set():
kill_server()
kill_check = task.LoopingCall(check_for_kill)
kill_check.start(1.0)
return True
def create_single_blob():
blob_creator = session.blob_manager.get_blob_creator()
blob_creator.write("0" * 2 ** 21)
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return blob_creator.close()
def put_blob_hash_on_queue(blob_hash):
logging.debug("Telling the client to start running. Blob hash: %s", str(blob_hash))
blob_hash_queue.put(blob_hash)
logging.debug("blob hash has been added to the queue")
reactor.callLater(1, start_all)
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if not reactor.running:
reactor.run()
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class TestTransfer(TestCase):
def setUp(self):
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mocks.mock_conf_settings(self)
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self.server_processes = []
self.session = None
self.stream_info_manager = None
self.lbry_file_manager = None
self.is_generous = True
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self.addCleanup(self.take_down_env)
def take_down_env(self):
d = defer.succeed(True)
if self.lbry_file_manager is not None:
d.addCallback(lambda _: self.lbry_file_manager.stop())
if self.session is not None:
d.addCallback(lambda _: self.session.shut_down())
if self.stream_info_manager is not None:
d.addCallback(lambda _: self.stream_info_manager.stop())
def delete_test_env():
dirs = ['server', 'server1', 'server2', 'client']
files = ['test_file']
for di in dirs:
if os.path.exists(di):
shutil.rmtree(di)
for f in files:
if os.path.exists(f):
os.remove(f)
for p in self.server_processes:
p.terminate()
return True
d.addCallback(lambda _: threads.deferToThread(delete_test_env))
return d
@staticmethod
def wait_for_event(event, timeout):
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from twisted.internet import reactor
d = defer.Deferred()
def stop():
set_check.stop()
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if stop_call.active():
stop_call.cancel()
d.callback(True)
def check_if_event_set():
if event.is_set():
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logging.debug("Dead event has been found set")
stop()
def done_waiting():
logging.warning("Event has not been found set and timeout has expired")
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stop()
set_check = task.LoopingCall(check_if_event_set)
set_check.start(.1)
stop_call = reactor.callLater(timeout, done_waiting)
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return d
@staticmethod
def wait_for_hash_from_queue(hash_queue):
logging.debug("Waiting for the sd_hash to come through the queue")
d = defer.Deferred()
def check_for_start():
if hash_queue.empty() is False:
logging.debug("Client start event has been found set")
start_check.stop()
d.callback(hash_queue.get(False))
else:
logging.debug("Client start event has NOT been found set")
start_check = task.LoopingCall(check_for_start)
start_check.start(1.0)
return d
def test_lbry_transfer(self):
sd_hash_queue = Queue()
kill_event = Event()
dead_event = Event()
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lbry_uploader = LbryUploader(sd_hash_queue, kill_event, dead_event, 5209343)
uploader = Process(target=lbry_uploader.start)
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uploader.start()
self.server_processes.append(uploader)
logging.debug("Testing transfer")
wallet = FakeWallet()
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, 1)
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hash_announcer = FakeAnnouncer()
rate_limiter = DummyRateLimiter()
sd_identifier = StreamDescriptorIdentifier()
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db_dir = "client"
blob_dir = os.path.join(db_dir, "blobfiles")
os.mkdir(db_dir)
os.mkdir(blob_dir)
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self.session = Session(
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conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir, lbryid="abcd",
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peer_finder=peer_finder, hash_announcer=hash_announcer,
blob_dir=blob_dir, peer_port=5553,
use_upnp=False, rate_limiter=rate_limiter, wallet=wallet,
blob_tracker_class=DummyBlobAvailabilityTracker,
dht_node_class=Node, is_generous=self.is_generous)
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self.stream_info_manager = TempEncryptedFileMetadataManager()
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self.lbry_file_manager = EncryptedFileManager(
self.session, self.stream_info_manager, sd_identifier)
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def make_downloader(metadata, prm):
info_validator = metadata.validator
options = metadata.options
factories = metadata.factories
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chosen_options = [
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o.default_value for o in options.get_downloader_options(info_validator, prm)
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]
return factories[0].make_downloader(metadata, chosen_options, prm)
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def download_file(sd_hash):
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prm = self.session.payment_rate_manager
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d = download_sd_blob(self.session, sd_hash, prm)
d.addCallback(sd_identifier.get_metadata_for_sd_blob)
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d.addCallback(make_downloader, prm)
d.addCallback(lambda downloader: downloader.start())
return d
def check_md5_sum():
f = open('test_file')
hashsum = MD5.new()
hashsum.update(f.read())
self.assertEqual(hashsum.hexdigest(), "4ca2aafb4101c1e42235aad24fbb83be")
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@defer.inlineCallbacks
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def start_transfer(sd_hash):
logging.debug("Starting the transfer")
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yield self.session.setup()
yield add_lbry_file_to_sd_identifier(sd_identifier)
yield self.lbry_file_manager.setup()
yield download_file(sd_hash)
yield check_md5_sum()
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def stop(arg):
if isinstance(arg, Failure):
logging.debug("Client is stopping due to an error. Error: %s", arg.getTraceback())
else:
logging.debug("Client is stopping normally.")
kill_event.set()
logging.debug("Set the kill event")
d = self.wait_for_event(dead_event, 15)
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def print_shutting_down():
logging.info("Client is shutting down")
d.addCallback(lambda _: print_shutting_down())
d.addCallback(lambda _: arg)
return d
d = self.wait_for_hash_from_queue(sd_hash_queue)
d.addCallback(start_transfer)
d.addBoth(stop)
return d
def test_last_blob_retrieval(self):
kill_event = Event()
dead_event_1 = Event()
blob_hash_queue_1 = Queue()
blob_hash_queue_2 = Queue()
fast_uploader = Process(target=start_blob_uploader,
args=(blob_hash_queue_1, kill_event, dead_event_1, False))
fast_uploader.start()
self.server_processes.append(fast_uploader)
dead_event_2 = Event()
slow_uploader = Process(target=start_blob_uploader,
args=(blob_hash_queue_2, kill_event, dead_event_2, True))
slow_uploader.start()
self.server_processes.append(slow_uploader)
logging.debug("Testing transfer")
wallet = FakeWallet()
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, 2)
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hash_announcer = FakeAnnouncer()
rate_limiter = DummyRateLimiter()
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db_dir = "client"
blob_dir = os.path.join(db_dir, "blobfiles")
os.mkdir(db_dir)
os.mkdir(blob_dir)
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self.session = Session(
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conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir, lbryid="abcd",
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peer_finder=peer_finder, hash_announcer=hash_announcer,
blob_dir=blob_dir, peer_port=5553,
use_upnp=False, rate_limiter=rate_limiter, wallet=wallet,
blob_tracker_class=DummyBlobAvailabilityTracker,
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is_generous=conf.ADJUSTABLE_SETTINGS['is_generous_host'][1])
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d1 = self.wait_for_hash_from_queue(blob_hash_queue_1)
d2 = self.wait_for_hash_from_queue(blob_hash_queue_2)
d = defer.DeferredList([d1, d2], fireOnOneErrback=True)
def get_blob_hash(results):
self.assertEqual(results[0][1], results[1][1])
return results[0][1]
d.addCallback(get_blob_hash)
def download_blob(blob_hash):
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prm = self.session.payment_rate_manager
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downloader = StandaloneBlobDownloader(
blob_hash, self.session.blob_manager, peer_finder, rate_limiter, prm, wallet)
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d = downloader.download()
return d
def start_transfer(blob_hash):
logging.debug("Starting the transfer")
d = self.session.setup()
d.addCallback(lambda _: download_blob(blob_hash))
return d
d.addCallback(start_transfer)
def stop(arg):
if isinstance(arg, Failure):
logging.debug("Client is stopping due to an error. Error: %s", arg.getTraceback())
else:
logging.debug("Client is stopping normally.")
kill_event.set()
logging.debug("Set the kill event")
d1 = self.wait_for_event(dead_event_1, 15)
d2 = self.wait_for_event(dead_event_2, 15)
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dl = defer.DeferredList([d1, d2])
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def print_shutting_down():
logging.info("Client is shutting down")
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dl.addCallback(lambda _: print_shutting_down())
dl.addCallback(lambda _: arg)
return dl
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d.addBoth(stop)
return d
def test_double_download(self):
sd_hash_queue = Queue()
kill_event = Event()
dead_event = Event()
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lbry_uploader = LbryUploader(sd_hash_queue, kill_event, dead_event, 5209343)
uploader = Process(target=lbry_uploader.start)
uploader.start()
self.server_processes.append(uploader)
logging.debug("Testing double download")
wallet = FakeWallet()
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, 1)
hash_announcer = FakeAnnouncer()
rate_limiter = DummyRateLimiter()
sd_identifier = StreamDescriptorIdentifier()
downloaders = []
db_dir = "client"
blob_dir = os.path.join(db_dir, "blobfiles")
os.mkdir(db_dir)
os.mkdir(blob_dir)
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self.session = Session(conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir,
lbryid="abcd", peer_finder=peer_finder,
hash_announcer=hash_announcer, blob_dir=blob_dir, peer_port=5553,
use_upnp=False, rate_limiter=rate_limiter, wallet=wallet,
blob_tracker_class=DummyBlobAvailabilityTracker,
is_generous=conf.ADJUSTABLE_SETTINGS['is_generous_host'][1])
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self.stream_info_manager = DBEncryptedFileMetadataManager(self.session.db_dir)
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self.lbry_file_manager = EncryptedFileManager(self.session, self.stream_info_manager,
sd_identifier)
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@defer.inlineCallbacks
def make_downloader(metadata, prm):
info_validator = metadata.validator
options = metadata.options
factories = metadata.factories
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chosen_options = [
o.default_value for o in options.get_downloader_options(info_validator, prm)
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]
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downloader = yield factories[0].make_downloader(metadata, chosen_options, prm)
defer.returnValue(downloader)
def append_downloader(downloader):
downloaders.append(downloader)
return downloader
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@defer.inlineCallbacks
def download_file(sd_hash):
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prm = self.session.payment_rate_manager
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sd_blob = yield download_sd_blob(self.session, sd_hash, prm)
metadata = yield sd_identifier.get_metadata_for_sd_blob(sd_blob)
downloader = yield make_downloader(metadata, prm)
downloaders.append(downloader)
finished_value = yield downloader.start()
defer.returnValue(finished_value)
def check_md5_sum():
f = open('test_file')
hashsum = MD5.new()
hashsum.update(f.read())
self.assertEqual(hashsum.hexdigest(), "4ca2aafb4101c1e42235aad24fbb83be")
def delete_lbry_file():
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logging.debug("deleting the file")
d = self.lbry_file_manager.delete_lbry_file(downloaders[0])
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d.addCallback(lambda _: self.lbry_file_manager.get_count_for_stream_hash(
downloaders[0].stream_hash))
d.addCallback(
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lambda c: self.stream_info_manager.delete_stream(
downloaders[1].stream_hash) if c == 0 else True)
return d
def check_lbry_file():
d = downloaders[1].status()
d.addCallback(lambda _: downloaders[1].status())
def check_status_report(status_report):
self.assertEqual(status_report.num_known, status_report.num_completed)
self.assertEqual(status_report.num_known, 3)
d.addCallback(check_status_report)
return d
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@defer.inlineCallbacks
def start_transfer(sd_hash):
logging.debug("Starting the transfer")
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yield self.session.setup()
yield self.stream_info_manager.setup()
yield add_lbry_file_to_sd_identifier(sd_identifier)
yield self.lbry_file_manager.setup()
yield download_file(sd_hash)
yield check_md5_sum()
yield download_file(sd_hash)
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yield check_lbry_file()
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yield delete_lbry_file()
def stop(arg):
if isinstance(arg, Failure):
logging.debug("Client is stopping due to an error. Error: %s", arg.getTraceback())
else:
logging.debug("Client is stopping normally.")
kill_event.set()
logging.debug("Set the kill event")
d = self.wait_for_event(dead_event, 15)
def print_shutting_down():
logging.info("Client is shutting down")
d.addCallback(lambda _: print_shutting_down())
d.addCallback(lambda _: arg)
return d
d = self.wait_for_hash_from_queue(sd_hash_queue)
d.addCallback(start_transfer)
d.addBoth(stop)
return d
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@unittest.skip("Sadly skipping failing test instead of fixing it")
def test_multiple_uploaders(self):
sd_hash_queue = Queue()
num_uploaders = 3
kill_event = Event()
dead_events = [Event() for _ in range(num_uploaders)]
ready_events = [Event() for _ in range(1, num_uploaders)]
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lbry_uploader = LbryUploader(
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sd_hash_queue, kill_event, dead_events[0], 5209343, 9373419, 2 ** 22)
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uploader = Process(target=lbry_uploader.start)
uploader.start()
self.server_processes.append(uploader)
logging.debug("Testing multiple uploaders")
wallet = FakeWallet()
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, num_uploaders)
hash_announcer = FakeAnnouncer()
rate_limiter = DummyRateLimiter()
sd_identifier = StreamDescriptorIdentifier()
db_dir = "client"
blob_dir = os.path.join(db_dir, "blobfiles")
os.mkdir(db_dir)
os.mkdir(blob_dir)
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self.session = Session(conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir,
lbryid="abcd", peer_finder=peer_finder,
hash_announcer=hash_announcer, blob_dir=None,
peer_port=5553, use_upnp=False, rate_limiter=rate_limiter,
wallet=wallet, blob_tracker_class=DummyBlobAvailabilityTracker,
is_generous=conf.ADJUSTABLE_SETTINGS['is_generous_host'][1])
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self.stream_info_manager = TempEncryptedFileMetadataManager()
self.lbry_file_manager = EncryptedFileManager(
self.session, self.stream_info_manager, sd_identifier)
def start_additional_uploaders(sd_hash):
for i in range(1, num_uploaders):
uploader = Process(target=start_lbry_reuploader,
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args=(
sd_hash, kill_event, dead_events[i], ready_events[i - 1], i,
2 ** 10))
uploader.start()
self.server_processes.append(uploader)
return defer.succeed(True)
def wait_for_ready_events():
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return defer.DeferredList(
[self.wait_for_event(ready_event, 60) for ready_event in ready_events])
def make_downloader(metadata, prm):
info_validator = metadata.validator
options = metadata.options
factories = metadata.factories
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chosen_options = [o.default_value for o in
options.get_downloader_options(info_validator, prm)]
return factories[0].make_downloader(metadata, chosen_options, prm)
def download_file(sd_hash):
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prm = self.session.payment_rate_manager
d = download_sd_blob(self.session, sd_hash, prm)
d.addCallback(sd_identifier.get_metadata_for_sd_blob)
d.addCallback(make_downloader, prm)
d.addCallback(lambda downloader: downloader.start())
return d
def check_md5_sum():
f = open('test_file')
hashsum = MD5.new()
hashsum.update(f.read())
self.assertEqual(hashsum.hexdigest(), "e5941d615f53312fd66638239c1f90d5")
def start_transfer(sd_hash):
logging.debug("Starting the transfer")
d = start_additional_uploaders(sd_hash)
d.addCallback(lambda _: wait_for_ready_events())
d.addCallback(lambda _: self.session.setup())
d.addCallback(lambda _: add_lbry_file_to_sd_identifier(sd_identifier))
d.addCallback(lambda _: self.lbry_file_manager.setup())
d.addCallback(lambda _: download_file(sd_hash))
d.addCallback(lambda _: check_md5_sum())
return d
def stop(arg):
if isinstance(arg, Failure):
logging.debug("Client is stopping due to an error. Error: %s", arg.getTraceback())
else:
logging.debug("Client is stopping normally.")
kill_event.set()
logging.debug("Set the kill event")
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d = defer.DeferredList(
[self.wait_for_event(dead_event, 15) for dead_event in dead_events])
def print_shutting_down():
logging.info("Client is shutting down")
d.addCallback(lambda _: print_shutting_down())
d.addCallback(lambda _: arg)
return d
d = self.wait_for_hash_from_queue(sd_hash_queue)
d.addCallback(start_transfer)
d.addBoth(stop)
return d