197 lines
8.7 KiB
Python
197 lines
8.7 KiB
Python
import os
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import shutil
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import unittest
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from unittest import mock
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import asyncio
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from lbry.blob.blob_file import MAX_BLOB_SIZE
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from lbry.blob_exchange.serialization import BlobResponse
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from lbry.blob_exchange.server import BlobServerProtocol
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from lbry.dht.node import Node
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from lbry.dht.peer import make_kademlia_peer
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from lbry.stream.managed_stream import ManagedStream
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from lbry.stream.descriptor import StreamDescriptor
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from tests.unit.blob_exchange.test_transfer_blob import BlobExchangeTestBase
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def get_mock_node(loop):
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mock_node = mock.Mock(spec=Node)
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mock_node.joined = asyncio.Event(loop=loop)
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mock_node.joined.set()
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return mock_node
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class TestManagedStream(BlobExchangeTestBase):
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async def create_stream(self, blob_count: int = 10, file_name='test_file'):
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self.stream_bytes = b''
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for _ in range(blob_count):
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self.stream_bytes += os.urandom(MAX_BLOB_SIZE - 1)
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# create the stream
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file_path = os.path.join(self.server_dir, file_name)
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with open(file_path, 'wb') as f:
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f.write(self.stream_bytes)
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descriptor = await StreamDescriptor.create_stream(self.loop, self.server_blob_manager.blob_dir, file_path)
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self.sd_hash = descriptor.calculate_sd_hash()
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return descriptor
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async def setup_stream(self, blob_count: int = 10):
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await self.create_stream(blob_count)
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self.stream = ManagedStream(
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self.loop, self.client_config, self.client_blob_manager, self.sd_hash, self.client_dir
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)
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async def test_client_sanitizes_file_name(self):
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illegal_name = 't<?t_f:|<'
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descriptor = await self.create_stream(file_name=illegal_name)
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descriptor.suggested_file_name = illegal_name
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self.stream = ManagedStream(
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self.loop, self.client_config, self.client_blob_manager, self.sd_hash, self.client_dir
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)
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await self._test_transfer_stream(10, skip_setup=True)
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self.assertTrue(self.stream.completed)
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self.assertEqual(self.stream.file_name, 'tt_f')
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self.assertTrue(self.stream.output_file_exists)
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self.assertTrue(os.path.isfile(self.stream.full_path))
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self.assertEqual(self.stream.full_path, os.path.join(self.client_dir, 'tt_f'))
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self.assertTrue(os.path.isfile(os.path.join(self.client_dir, 'tt_f')))
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async def test_status_file_completed(self):
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await self._test_transfer_stream(10)
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self.assertTrue(self.stream.output_file_exists)
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self.assertTrue(self.stream.completed)
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with open(self.stream.full_path, 'w+b') as outfile:
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outfile.truncate(1)
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self.assertTrue(self.stream.output_file_exists)
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self.assertFalse(self.stream.completed)
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async def _test_transfer_stream(self, blob_count: int, mock_accumulate_peers=None, stop_when_done=True,
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skip_setup=False):
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if not skip_setup:
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await self.setup_stream(blob_count)
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mock_node = mock.Mock(spec=Node)
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def _mock_accumulate_peers(q1, q2):
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async def _task():
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pass
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q2.put_nowait([self.server_from_client])
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return q2, self.loop.create_task(_task())
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mock_node.accumulate_peers = mock_accumulate_peers or _mock_accumulate_peers
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self.stream.downloader.node = mock_node
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await self.stream.save_file()
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await self.stream.finished_write_attempt.wait()
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self.assertTrue(os.path.isfile(self.stream.full_path))
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if stop_when_done:
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await self.stream.stop()
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self.assertTrue(os.path.isfile(self.stream.full_path))
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with open(self.stream.full_path, 'rb') as f:
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self.assertEqual(f.read(), self.stream_bytes)
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await asyncio.sleep(0.01)
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async def test_transfer_stream(self):
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await self._test_transfer_stream(10)
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self.assertEqual(self.stream.status, "finished")
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self.assertFalse(self.stream._running.is_set())
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async def test_delayed_stop(self):
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await self._test_transfer_stream(10, stop_when_done=False)
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self.assertEqual(self.stream.status, "finished")
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self.assertTrue(self.stream._running.is_set())
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await asyncio.sleep(0.5, loop=self.loop)
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self.assertTrue(self.stream._running.is_set())
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await asyncio.sleep(2, loop=self.loop)
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self.assertEqual(self.stream.status, "finished")
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self.assertFalse(self.stream._running.is_set())
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@unittest.SkipTest
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async def test_transfer_hundred_blob_stream(self):
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await self._test_transfer_stream(100)
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async def test_transfer_stream_bad_first_peer_good_second(self):
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await self.setup_stream(2)
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mock_node = mock.Mock(spec=Node)
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bad_peer = make_kademlia_peer(b'2' * 48, "127.0.0.1", tcp_port=3334, allow_localhost=True)
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def _mock_accumulate_peers(q1, q2):
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async def _task():
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pass
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q2.put_nowait([bad_peer])
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self.loop.call_later(1, q2.put_nowait, [self.server_from_client])
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return q2, self.loop.create_task(_task())
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mock_node.accumulate_peers = _mock_accumulate_peers
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self.stream.downloader.node = mock_node
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await self.stream.save_file()
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await self.stream.finished_writing.wait()
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self.assertTrue(os.path.isfile(self.stream.full_path))
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with open(self.stream.full_path, 'rb') as f:
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self.assertEqual(f.read(), self.stream_bytes)
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await self.stream.stop()
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# self.assertIs(self.server_from_client.tcp_last_down, None)
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# self.assertIsNot(bad_peer.tcp_last_down, None)
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async def test_client_chunked_response(self):
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self.server.stop_server()
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class ChunkedServerProtocol(BlobServerProtocol):
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def send_response(self, responses):
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to_send = []
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while responses:
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to_send.append(responses.pop())
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for byte in BlobResponse(to_send).serialize():
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self.transport.write(bytes([byte]))
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self.server.server_protocol_class = ChunkedServerProtocol
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self.server.start_server(33333, '127.0.0.1')
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self.assertEqual(0, len(self.client_blob_manager.completed_blob_hashes))
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await asyncio.wait_for(self._test_transfer_stream(10), timeout=2)
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self.assertEqual(11, len(self.client_blob_manager.completed_blob_hashes))
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async def test_create_and_decrypt_one_blob_stream(self, blobs=1, corrupt=False):
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descriptor = await self.create_stream(blobs)
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# copy blob files
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shutil.copy(os.path.join(self.server_blob_manager.blob_dir, self.sd_hash),
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os.path.join(self.client_blob_manager.blob_dir, self.sd_hash))
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self.stream = ManagedStream(self.loop, self.client_config, self.client_blob_manager, self.sd_hash,
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self.client_dir)
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for blob_info in descriptor.blobs[:-1]:
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shutil.copy(os.path.join(self.server_blob_manager.blob_dir, blob_info.blob_hash),
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os.path.join(self.client_blob_manager.blob_dir, blob_info.blob_hash))
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if corrupt and blob_info.length == MAX_BLOB_SIZE:
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with open(os.path.join(self.client_blob_manager.blob_dir, blob_info.blob_hash), "rb+") as handle:
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handle.truncate()
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handle.flush()
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await self.stream.save_file()
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await self.stream.finished_writing.wait()
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if corrupt:
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return self.assertFalse(os.path.isfile(os.path.join(self.client_dir, "test_file")))
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with open(os.path.join(self.client_dir, "test_file"), "rb") as f:
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decrypted = f.read()
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self.assertEqual(decrypted, self.stream_bytes)
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self.assertTrue(self.client_blob_manager.get_blob(self.sd_hash).get_is_verified())
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self.assertEqual(
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True, self.client_blob_manager.get_blob(self.stream.descriptor.blobs[0].blob_hash).get_is_verified()
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)
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#
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# # its all blobs + sd blob - last blob, which is the same size as descriptor.blobs
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# self.assertEqual(len(descriptor.blobs), len(await downloader_storage.get_all_finished_blobs()))
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# self.assertEqual(
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# [descriptor.sd_hash, descriptor.blobs[0].blob_hash], await downloader_storage.get_blobs_to_announce()
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# )
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#
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# await downloader_storage.close()
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# await self.storage.close()
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async def test_create_and_decrypt_multi_blob_stream(self):
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await self.test_create_and_decrypt_one_blob_stream(10)
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# async def test_create_truncate_and_handle_stream(self):
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# # The purpose of this test is just to make sure it can finish even if a blob is corrupt/truncated
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# await asyncio.wait_for(self.test_create_and_decrypt_one_blob_stream(corrupt=True), timeout=5)
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