class TestTransfer(unittest.TestCase):
@defer.inlineCallbacks
def setUp(self):
mocks.mock_conf_settings(self)
self.db_dir, self.blob_dir = mk_db_and_blob_dir()
self.wallet = FakeWallet()
self.peer_manager = PeerManager()
self.peer_finder = FakePeerFinder(5553, self.peer_manager, 1)
self.rate_limiter = RateLimiter()
self.prm = OnlyFreePaymentsManager()
self.storage = SQLiteStorage(self.db_dir)
self.blob_manager = DiskBlobManager(self.blob_dir, self.storage)
self.sd_identifier = StreamDescriptorIdentifier()
self.lbry_file_manager = EncryptedFileManager(
self.peer_finder, self.rate_limiter, self.blob_manager,
self.wallet, self.prm, self.storage, self.sd_identifier)
self.uploader = LbryUploader(5209343)
self.sd_hash = yield self.uploader.setup()
yield self.storage.setup()
yield self.blob_manager.setup()
yield self.lbry_file_manager.setup()
yield add_lbry_file_to_sd_identifier(self.sd_identifier)
@defer.inlineCallbacks
def tearDown(self):
yield self.uploader.stop()
lbry_files = self.lbry_file_manager.lbry_files
for lbry_file in lbry_files:
yield self.lbry_file_manager.delete_lbry_file(lbry_file)
yield self.lbry_file_manager.stop()
yield self.blob_manager.stop()
yield self.storage.stop()
rm_db_and_blob_dir(self.db_dir, self.blob_dir)
if os.path.exists("test_file"):
os.remove("test_file")
@defer.inlineCallbacks
def test_lbry_transfer(self):
sd_blob = yield download_sd_blob(self.sd_hash, self.blob_manager,
self.peer_finder, self.rate_limiter,
self.prm, self.wallet)
metadata = yield self.sd_identifier.get_metadata_for_sd_blob(sd_blob)
downloader = yield metadata.factories[0].make_downloader(
metadata,
self.prm.min_blob_data_payment_rate,
self.prm,
self.db_dir,
download_mirrors=None)
yield downloader.start()
with open(os.path.join(self.db_dir, 'test_file'), 'rb') as f:
hashsum = md5()
hashsum.update(f.read())
self.assertEqual(hashsum.hexdigest(),
"4ca2aafb4101c1e42235aad24fbb83be")
class TestTransfer(TestCase):
def setUp(self):
mocks.mock_conf_settings(self)
self.server_processes = []
self.session = None
self.stream_info_manager = None
self.lbry_file_manager = None
self.is_generous = True
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):
from twisted.internet import reactor
d = defer.Deferred()
def stop():
set_check.stop()
if stop_call.active():
stop_call.cancel()
d.callback(True)
def check_if_event_set():
if event.is_set():
logging.debug("Dead event has been found set")
stop()
def done_waiting():
logging.warning(
"Event has not been found set and timeout has expired")
stop()
set_check = task.LoopingCall(check_if_event_set)
set_check.start(.1)
stop_call = reactor.callLater(timeout, done_waiting)
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()
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 transfer")
wallet = FakeWallet()
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, 1)
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)
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,
dht_node_class=Node,
is_generous=self.is_generous)
self.stream_info_manager = TempEncryptedFileMetadataManager()
self.lbry_file_manager = EncryptedFileManager(self.session,
self.stream_info_manager,
sd_identifier)
def make_downloader(metadata, prm):
info_validator = metadata.validator
options = metadata.options
factories = metadata.factories
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):
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(),
"4ca2aafb4101c1e42235aad24fbb83be")
@defer.inlineCallbacks
def start_transfer(sd_hash):
logging.debug("Starting the transfer")
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()
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
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)
hash_announcer = FakeAnnouncer()
rate_limiter = DummyRateLimiter()
db_dir = "client"
blob_dir = os.path.join(db_dir, "blobfiles")
os.mkdir(db_dir)
os.mkdir(blob_dir)
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])
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):
prm = self.session.payment_rate_manager
downloader = StandaloneBlobDownloader(blob_hash,
self.session.blob_manager,
peer_finder, rate_limiter,
prm, wallet)
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)
dl = defer.DeferredList([d1, d2])
def print_shutting_down():
logging.info("Client is shutting down")
dl.addCallback(lambda _: print_shutting_down())
dl.addCallback(lambda _: arg)
return dl
d.addBoth(stop)
return d
def test_double_download(self):
sd_hash_queue = Queue()
kill_event = Event()
dead_event = Event()
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)
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])
self.stream_info_manager = DBEncryptedFileMetadataManager(
self.session.db_dir)
self.lbry_file_manager = EncryptedFileManager(self.session,
self.stream_info_manager,
sd_identifier)
@defer.inlineCallbacks
def make_downloader(metadata, prm):
info_validator = metadata.validator
options = metadata.options
factories = metadata.factories
chosen_options = [
o.default_value
for o in options.get_downloader_options(info_validator, prm)
]
downloader = yield factories[0].make_downloader(
metadata, chosen_options, prm)
defer.returnValue(downloader)
def append_downloader(downloader):
downloaders.append(downloader)
return downloader
@defer.inlineCallbacks
def download_file(sd_hash):
prm = self.session.payment_rate_manager
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():
logging.debug("deleting the file")
d = self.lbry_file_manager.delete_lbry_file(downloaders[0])
d.addCallback(
lambda _: self.lbry_file_manager.get_count_for_stream_hash(
downloaders[0].stream_hash))
d.addCallback(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
@defer.inlineCallbacks
def start_transfer(sd_hash):
logging.debug("Starting the transfer")
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)
yield check_lbry_file()
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
@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)]
lbry_uploader = LbryUploader(sd_hash_queue, kill_event, dead_events[0],
5209343, 9373419, 2**22)
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)
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])
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,
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():
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
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):
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")
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
class TestStreamify(TestCase):
maxDiff = 5000
def setUp(self):
mocks.mock_conf_settings(self)
self.session = None
self.lbry_file_manager = None
self.is_generous = True
self.db_dir = tempfile.mkdtemp()
self.blob_dir = os.path.join(self.db_dir, "blobfiles")
os.mkdir(self.blob_dir)
self.dht_node = FakeNode()
self.wallet = FakeWallet()
self.peer_manager = PeerManager()
self.peer_finder = FakePeerFinder(5553, self.peer_manager, 2)
self.rate_limiter = DummyRateLimiter()
self.sd_identifier = StreamDescriptorIdentifier()
self.storage = SQLiteStorage(self.db_dir)
self.blob_manager = DiskBlobManager(self.blob_dir, self.storage,
self.dht_node._dataStore)
self.prm = OnlyFreePaymentsManager()
self.lbry_file_manager = EncryptedFileManager(
self.peer_finder, self.rate_limiter, self.blob_manager,
self.wallet, self.prm, self.storage, self.sd_identifier)
d = self.storage.setup()
d.addCallback(lambda _: self.lbry_file_manager.setup())
return d
@defer.inlineCallbacks
def tearDown(self):
lbry_files = self.lbry_file_manager.lbry_files
for lbry_file in lbry_files:
yield self.lbry_file_manager.delete_lbry_file(lbry_file)
yield self.lbry_file_manager.stop()
yield self.storage.stop()
yield threads.deferToThread(shutil.rmtree, self.db_dir)
if os.path.exists("test_file"):
os.remove("test_file")
def test_create_stream(self):
def verify_equal(sd_info):
self.assertEqual(sd_info, test_create_stream_sd_file)
def verify_stream_descriptor_file(stream_hash):
d = get_sd_info(self.storage, stream_hash, True)
d.addCallback(verify_equal)
return d
def iv_generator():
iv = 0
while 1:
iv += 1
yield b"%016d" % iv
def create_stream():
test_file = GenFile(5209343, bytes(
(i + 3) for i in range(0, 64, 6)))
d = create_lbry_file(self.blob_manager,
self.storage,
self.prm,
self.lbry_file_manager,
"test_file",
test_file,
key=b'0123456701234567',
iv_generator=iv_generator())
d.addCallback(lambda lbry_file: lbry_file.stream_hash)
return d
d = create_stream()
d.addCallback(verify_stream_descriptor_file)
return d
@defer.inlineCallbacks
def test_create_and_combine_stream(self):
test_file = GenFile(53209343, bytes((i + 5) for i in range(0, 64, 6)))
lbry_file = yield create_lbry_file(self.blob_manager, self.storage,
self.prm, self.lbry_file_manager,
"test_file", test_file)
sd_hash = yield self.storage.get_sd_blob_hash_for_stream(
lbry_file.stream_hash)
self.assertTrue(lbry_file.sd_hash, sd_hash)
yield lbry_file.start()
f = open('test_file', 'rb')
hashsum = md5()
hashsum.update(f.read())
self.assertEqual(hashsum.hexdigest(),
"68959747edc73df45e45db6379dd7b3b")
class TestReflector(unittest.TestCase):
def setUp(self):
self.reflector_port = None
self.port = None
mocks.mock_conf_settings(self)
self.server_db_dir, self.server_blob_dir = mk_db_and_blob_dir()
self.client_db_dir, self.client_blob_dir = mk_db_and_blob_dir()
prm = OnlyFreePaymentsManager()
wallet = mocks.Wallet()
peer_manager = PeerManager.PeerManager()
peer_finder = mocks.PeerFinder(5553, peer_manager, 2)
self.server_storage = SQLiteStorage(self.server_db_dir)
self.server_blob_manager = BlobManager.DiskBlobManager(
self.server_blob_dir, self.server_storage)
self.client_storage = SQLiteStorage(self.client_db_dir)
self.client_blob_manager = BlobManager.DiskBlobManager(
self.client_blob_dir, self.client_storage)
self.server_lbry_file_manager = EncryptedFileManager(
peer_finder, DummyRateLimiter(), self.server_blob_manager, wallet,
prm, self.server_storage,
StreamDescriptor.StreamDescriptorIdentifier())
self.client_lbry_file_manager = EncryptedFileManager(
peer_finder, DummyRateLimiter(), self.client_blob_manager, wallet,
prm, self.client_storage,
StreamDescriptor.StreamDescriptorIdentifier())
self.expected_blobs = [
('dc4708f76a5e7af0f1cae0ee96b824e2ed9250c9346c093b'
'441f0a20d3607c17948b6fcfb4bc62020fe5286693d08586', 2097152),
('f4067522c1b49432a2a679512e3917144317caa1abba0c04'
'1e0cd2cf9f635d4cf127ce1824fa04189b63916174951f70', 2097152),
('305486c434260484fcb2968ce0e963b72f81ba56c11b08b1'
'af0789b55b44d78422600f9a38e3cf4f2e9569897e5646a9', 1015056),
]
d = self.server_storage.setup()
d.addCallback(lambda _: self.server_blob_manager.setup())
d.addCallback(lambda _: self.server_lbry_file_manager.setup())
d.addCallback(lambda _: self.client_storage.setup())
d.addCallback(lambda _: self.client_blob_manager.setup())
d.addCallback(lambda _: self.client_lbry_file_manager.setup())
@defer.inlineCallbacks
def verify_equal(sd_info, stream_hash):
self.assertDictEqual(mocks.create_stream_sd_file, sd_info)
sd_hash = yield self.client_storage.get_sd_blob_hash_for_stream(
stream_hash)
defer.returnValue(sd_hash)
def save_sd_blob_hash(sd_hash):
self.sd_hash = sd_hash
self.expected_blobs.append((sd_hash, 923))
def verify_stream_descriptor_file(stream_hash):
self.stream_hash = stream_hash
d = get_sd_info(self.client_storage, stream_hash, True)
d.addCallback(verify_equal, stream_hash)
d.addCallback(save_sd_blob_hash)
return d
def create_stream():
test_file = mocks.GenFile(5209343,
bytes((i + 3) for i in range(0, 64, 6)))
d = EncryptedFileCreator.create_lbry_file(
self.client_blob_manager,
self.client_storage,
prm,
self.client_lbry_file_manager,
"test_file",
test_file,
key=b"0123456701234567",
iv_generator=iv_generator())
d.addCallback(lambda lbry_file: lbry_file.stream_hash)
return d
def start_server():
server_factory = reflector.ServerFactory(
peer_manager, self.server_blob_manager,
self.server_lbry_file_manager)
from twisted.internet import reactor
port = 8943
while self.reflector_port is None:
try:
self.reflector_port = reactor.listenTCP(
port, server_factory)
self.port = port
except error.CannotListenError:
port += 1
d.addCallback(lambda _: create_stream())
d.addCallback(verify_stream_descriptor_file)
d.addCallback(lambda _: start_server())
return d
@defer.inlineCallbacks
def tearDown(self):
lbry_files = self.client_lbry_file_manager.lbry_files
for lbry_file in lbry_files:
yield self.client_lbry_file_manager.delete_lbry_file(lbry_file)
yield self.client_lbry_file_manager.stop()
yield self.client_blob_manager.stop()
yield self.client_storage.stop()
self.reflector_port.stopListening()
lbry_files = self.server_lbry_file_manager.lbry_files
for lbry_file in lbry_files:
yield self.server_lbry_file_manager.delete_lbry_file(lbry_file)
yield self.server_lbry_file_manager.stop()
yield self.server_blob_manager.stop()
yield self.server_storage.stop()
try:
rm_db_and_blob_dir(self.client_db_dir, self.client_blob_dir)
except Exception as err:
raise unittest.SkipTest("TODO: fix this for windows")
try:
rm_db_and_blob_dir(self.server_db_dir, self.server_blob_dir)
except Exception as err:
raise unittest.SkipTest("TODO: fix this for windows")
if os.path.exists("test_file"):
os.remove("test_file")
def test_stream_reflector(self):
def verify_blob_on_reflector():
check_blob_ds = []
for blob_hash, blob_size in self.expected_blobs:
check_blob_ds.append(verify_have_blob(blob_hash, blob_size))
return defer.DeferredList(check_blob_ds)
@defer.inlineCallbacks
def verify_stream_on_reflector():
# check stream_info_manager has all the right information
streams = yield self.server_storage.get_all_streams()
self.assertEqual(1, len(streams))
self.assertEqual(self.stream_hash, streams[0])
blobs = yield self.server_storage.get_blobs_for_stream(
self.stream_hash)
blob_hashes = [
b.blob_hash for b in blobs if b.blob_hash is not None
]
expected_blob_hashes = [
b[0] for b in self.expected_blobs[:-1] if b[0] is not None
]
self.assertEqual(expected_blob_hashes, blob_hashes)
sd_hash = yield self.server_storage.get_sd_blob_hash_for_stream(
streams[0])
self.assertEqual(self.sd_hash, sd_hash)
# check lbry file manager has the file
files = yield self.server_lbry_file_manager.lbry_files
self.assertEqual(0, len(files))
streams = yield self.server_storage.get_all_streams()
self.assertEqual(1, len(streams))
stream_info = yield self.server_storage.get_stream_info(
self.stream_hash)
self.assertEqual(self.sd_hash, stream_info[3])
self.assertEqual(hexlify(b'test_file').decode(), stream_info[0])
# check should_announce blobs on blob_manager
blob_hashes = yield self.server_storage.get_all_should_announce_blobs(
)
self.assertSetEqual({self.sd_hash, expected_blob_hashes[0]},
set(blob_hashes))
def verify_have_blob(blob_hash, blob_size):
d = self.server_blob_manager.get_blob(blob_hash)
d.addCallback(lambda blob: verify_blob_completed(blob, blob_size))
return d
def send_to_server():
factory = reflector.ClientFactory(self.client_blob_manager,
self.stream_hash, self.sd_hash)
from twisted.internet import reactor
reactor.connectTCP('localhost', self.port, factory)
return factory.finished_deferred
def verify_blob_completed(blob, blob_size):
self.assertTrue(blob.get_is_verified())
self.assertEqual(blob_size, blob.length)
return
d = send_to_server()
d.addCallback(lambda _: verify_blob_on_reflector())
d.addCallback(lambda _: verify_stream_on_reflector())
return d
def test_blob_reflector(self):
def verify_data_on_reflector():
check_blob_ds = []
for blob_hash, blob_size in self.expected_blobs:
check_blob_ds.append(verify_have_blob(blob_hash, blob_size))
return defer.DeferredList(check_blob_ds)
def verify_have_blob(blob_hash, blob_size):
d = self.server_blob_manager.get_blob(blob_hash)
d.addCallback(lambda blob: verify_blob_completed(blob, blob_size))
return d
def send_to_server(blob_hashes_to_send):
factory = reflector.BlobClientFactory(self.client_blob_manager,
blob_hashes_to_send)
from twisted.internet import reactor
reactor.connectTCP('localhost', self.port, factory)
return factory.finished_deferred
def verify_blob_completed(blob, blob_size):
self.assertTrue(blob.get_is_verified())
self.assertEqual(blob_size, blob.length)
d = send_to_server([x[0] for x in self.expected_blobs])
d.addCallback(lambda _: verify_data_on_reflector())
return d
def test_blob_reflector_v1(self):
@defer.inlineCallbacks
def verify_stream_on_reflector():
# this protocol should not have any impact on stream info manager
streams = yield self.server_storage.get_all_streams()
self.assertEqual(0, len(streams))
# there should be no should announce blobs here
blob_hashes = yield self.server_storage.get_all_should_announce_blobs(
)
self.assertEqual(0, len(blob_hashes))
def verify_data_on_reflector():
check_blob_ds = []
for blob_hash, blob_size in self.expected_blobs:
check_blob_ds.append(verify_have_blob(blob_hash, blob_size))
return defer.DeferredList(check_blob_ds)
def verify_have_blob(blob_hash, blob_size):
d = self.server_blob_manager.get_blob(blob_hash)
d.addCallback(lambda blob: verify_blob_completed(blob, blob_size))
return d
def send_to_server(blob_hashes_to_send):
factory = reflector.BlobClientFactory(self.client_blob_manager,
blob_hashes_to_send)
factory.protocol_version = 0
from twisted.internet import reactor
reactor.connectTCP('localhost', self.port, factory)
return factory.finished_deferred
def verify_blob_completed(blob, blob_size):
self.assertTrue(blob.get_is_verified())
self.assertEqual(blob_size, blob.length)
d = send_to_server([x[0] for x in self.expected_blobs])
d.addCallback(lambda _: verify_data_on_reflector())
return d
# test case when we reflect blob, and than that same blob
# is reflected as stream
def test_blob_reflect_and_stream(self):
def verify_blob_on_reflector():
check_blob_ds = []
for blob_hash, blob_size in self.expected_blobs:
check_blob_ds.append(verify_have_blob(blob_hash, blob_size))
return defer.DeferredList(check_blob_ds)
@defer.inlineCallbacks
def verify_stream_on_reflector():
# check stream_info_manager has all the right information
streams = yield self.server_storage.get_all_streams()
self.assertEqual(1, len(streams))
self.assertEqual(self.stream_hash, streams[0])
blobs = yield self.server_storage.get_blobs_for_stream(
self.stream_hash)
blob_hashes = [
b.blob_hash for b in blobs if b.blob_hash is not None
]
expected_blob_hashes = [
b[0] for b in self.expected_blobs[:-1] if b[0] is not None
]
self.assertEqual(expected_blob_hashes, blob_hashes)
sd_hash = yield self.server_storage.get_sd_blob_hash_for_stream(
self.stream_hash)
self.assertEqual(self.sd_hash, sd_hash)
# check should_announce blobs on blob_manager
to_announce = yield self.server_storage.get_all_should_announce_blobs(
)
self.assertSetEqual(set(to_announce),
{self.sd_hash, expected_blob_hashes[0]})
def verify_have_blob(blob_hash, blob_size):
d = self.server_blob_manager.get_blob(blob_hash)
d.addCallback(lambda blob: verify_blob_completed(blob, blob_size))
return d
def send_to_server_as_blobs(blob_hashes_to_send):
factory = reflector.BlobClientFactory(self.client_blob_manager,
blob_hashes_to_send)
factory.protocol_version = 0
from twisted.internet import reactor
reactor.connectTCP('localhost', self.port, factory)
return factory.finished_deferred
def send_to_server_as_stream(result):
factory = reflector.ClientFactory(self.client_blob_manager,
self.stream_hash, self.sd_hash)
from twisted.internet import reactor
reactor.connectTCP('localhost', self.port, factory)
return factory.finished_deferred
def verify_blob_completed(blob, blob_size):
self.assertTrue(blob.get_is_verified())
self.assertEqual(blob_size, blob.length)
# Modify this to change which blobs to send
blobs_to_send = self.expected_blobs
d = send_to_server_as_blobs([x[0] for x in self.expected_blobs])
d.addCallback(send_to_server_as_stream)
d.addCallback(lambda _: verify_blob_on_reflector())
d.addCallback(lambda _: verify_stream_on_reflector())
return d
class LbryUploader(object):
def __init__(self, file_size, ul_rate_limit=None):
self.file_size = file_size
self.ul_rate_limit = ul_rate_limit
self.kill_check = None
# these attributes get defined in `start`
self.db_dir = None
self.blob_dir = None
self.wallet = None
self.peer_manager = None
self.rate_limiter = None
self.prm = None
self.storage = None
self.blob_manager = None
self.lbry_file_manager = None
self.server_port = None
@defer.inlineCallbacks
def setup(self):
init_conf_windows()
self.db_dir, self.blob_dir = mk_db_and_blob_dir()
self.wallet = FakeWallet()
self.peer_manager = PeerManager()
self.rate_limiter = RateLimiter()
if self.ul_rate_limit is not None:
self.rate_limiter.set_ul_limit(self.ul_rate_limit)
self.prm = OnlyFreePaymentsManager()
self.storage = SQLiteStorage(self.db_dir)
self.blob_manager = DiskBlobManager(self.blob_dir, self.storage)
self.lbry_file_manager = EncryptedFileManager(
FakePeerFinder(5553, self.peer_manager, 1), self.rate_limiter,
self.blob_manager, self.wallet, self.prm, self.storage,
StreamDescriptorIdentifier())
yield self.storage.setup()
yield self.blob_manager.setup()
yield self.lbry_file_manager.setup()
query_handler_factories = {
1:
BlobAvailabilityHandlerFactory(self.blob_manager),
2:
BlobRequestHandlerFactory(self.blob_manager, self.wallet, self.prm,
None),
3:
self.wallet.get_wallet_info_query_handler_factory(),
}
server_factory = ServerProtocolFactory(self.rate_limiter,
query_handler_factories,
self.peer_manager)
self.server_port = reactor.listenTCP(5553,
server_factory,
interface="localhost")
test_file = GenFile(self.file_size, bytes(i for i in range(0, 64, 6)))
lbry_file = yield create_lbry_file(self.blob_manager, self.storage,
self.prm, self.lbry_file_manager,
"test_file", test_file)
defer.returnValue(lbry_file.sd_hash)
@defer.inlineCallbacks
def stop(self):
lbry_files = self.lbry_file_manager.lbry_files
for lbry_file in lbry_files:
yield self.lbry_file_manager.delete_lbry_file(lbry_file)
yield self.lbry_file_manager.stop()
yield self.blob_manager.stop()
yield self.storage.stop()
self.server_port.stopListening()
rm_db_and_blob_dir(self.db_dir, self.blob_dir)
if os.path.exists("test_file"):
os.remove("test_file")
class TestTransfer(TestCase):
def setUp(self):
mocks.mock_conf_settings(self)
self.server_processes = []
self.session = None
self.stream_info_manager = None
self.lbry_file_manager = None
self.is_generous = True
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):
from twisted.internet import reactor
d = defer.Deferred()
def stop():
set_check.stop()
if stop_call.active():
stop_call.cancel()
d.callback(True)
def check_if_event_set():
if event.is_set():
logging.debug("Dead event has been found set")
stop()
def done_waiting():
logging.warning("Event has not been found set and timeout has expired")
stop()
set_check = task.LoopingCall(check_if_event_set)
set_check.start(.1)
stop_call = reactor.callLater(timeout, done_waiting)
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
@unittest.skipIf(is_android(),
'Test cannot pass on Android because multiprocessing '
'is not supported at the OS level.')
def test_lbry_transfer(self):
sd_hash_queue = Queue()
kill_event = Event()
dead_event = Event()
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 transfer")
wallet = FakeWallet()
peer_manager = PeerManager()
peer_finder = FakePeerFinder(5553, peer_manager, 1)
hash_announcer = FakeAnnouncer()
rate_limiter = DummyRateLimiter()
sd_identifier = StreamDescriptorIdentifier()
db_dir, blob_dir = mk_db_and_blob_dir()
self.session = Session(
conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir,
node_id="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,
dht_node_class=Node, is_generous=self.is_generous, external_ip="127.0.0.1")
self.stream_info_manager = DBEncryptedFileMetadataManager(db_dir)
self.lbry_file_manager = EncryptedFileManager(
self.session, self.stream_info_manager, sd_identifier)
def make_downloader(metadata, prm):
info_validator = metadata.validator
options = metadata.options
factories = metadata.factories
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):
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(), "4ca2aafb4101c1e42235aad24fbb83be")
@defer.inlineCallbacks
def start_transfer(sd_hash):
logging.debug("Starting the transfer")
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()
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 _: rm_db_and_blob_dir(db_dir, blob_dir))
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
@unittest.skipIf(is_android(),
'Test cannot pass on Android because multiprocessing '
'is not supported at the OS level.')
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)
hash_announcer = FakeAnnouncer()
rate_limiter = DummyRateLimiter()
db_dir, blob_dir = mk_db_and_blob_dir()
self.session = Session(
conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir, node_id="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], external_ip="127.0.0.1")
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):
prm = self.session.payment_rate_manager
downloader = StandaloneBlobDownloader(
blob_hash, self.session.blob_manager, peer_finder, rate_limiter, prm, wallet)
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)
dl = defer.DeferredList([d1, d2])
def print_shutting_down():
logging.info("Client is shutting down")
dl.addCallback(lambda _: print_shutting_down())
dl.addCallback(lambda _: rm_db_and_blob_dir(db_dir, blob_dir))
dl.addCallback(lambda _: arg)
return dl
d.addBoth(stop)
return d
@unittest.skipIf(is_android(),
'Test cannot pass on Android because multiprocessing '
'is not supported at the OS level.')
def test_double_download(self):
sd_hash_queue = Queue()
kill_event = Event()
dead_event = Event()
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, blob_dir = mk_db_and_blob_dir()
self.session = Session(conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir,
node_id="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],
external_ip="127.0.0.1")
self.stream_info_manager = DBEncryptedFileMetadataManager(self.session.db_dir)
self.lbry_file_manager = EncryptedFileManager(self.session, self.stream_info_manager,
sd_identifier)
@defer.inlineCallbacks
def make_downloader(metadata, prm):
info_validator = metadata.validator
options = metadata.options
factories = metadata.factories
chosen_options = [
o.default_value for o in options.get_downloader_options(info_validator, prm)
]
downloader = yield factories[0].make_downloader(metadata, chosen_options, prm)
defer.returnValue(downloader)
def append_downloader(downloader):
downloaders.append(downloader)
return downloader
@defer.inlineCallbacks
def download_file(sd_hash):
prm = self.session.payment_rate_manager
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():
logging.debug("deleting the file")
d = self.lbry_file_manager.delete_lbry_file(downloaders[0])
d.addCallback(lambda _: self.lbry_file_manager.get_count_for_stream_hash(
downloaders[0].stream_hash))
d.addCallback(
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
@defer.inlineCallbacks
def start_transfer(sd_hash):
logging.debug("Starting the transfer")
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)
yield check_lbry_file()
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 _: rm_db_and_blob_dir(db_dir, blob_dir))
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
@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)]
lbry_uploader = LbryUploader(
sd_hash_queue, kill_event, dead_events[0], 5209343, 9373419, 2 ** 22)
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, blob_dir = mk_db_and_blob_dir()
self.session = Session(conf.ADJUSTABLE_SETTINGS['data_rate'][1], db_dir=db_dir,
node_id="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],
external_ip="127.0.0.1")
self.stream_info_manager = DBEncryptedFileMetadataManager(db_dir)
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,
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():
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
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):
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")
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 _: rm_db_and_blob_dir(db_dir, blob_dir))
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