mirror of
https://github.com/Dispatcharr/Dispatcharr.git
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7989fa3673
- Added calls to `close_old_connections()` in `stream_vod()` and `build_vod_stats_data()` to prevent connection leaks during long-lived streaming responses and background stats refreshes. - Improved connection handling in various components to ensure proper resource cleanup and prevent blocking issues.
393 lines
15 KiB
Python
393 lines
15 KiB
Python
"""Tests for ghost client detection and cleanup.
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Covers:
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- ClientManager.remove_ghost_clients() pipelined EXISTS logic
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- channel_status detailed stats path removes ghost clients from Redis SET
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- channel_status basic stats path removes ghost clients and corrects count
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- _check_orphaned_metadata() validates client SET entries and cleans up
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channels where all clients are ghosts
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"""
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from unittest.mock import MagicMock, patch, PropertyMock
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from django.test import TestCase
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from apps.proxy.live_proxy.client_manager import ClientManager
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from apps.proxy.live_proxy.constants import ChannelMetadataField, ChannelState
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from apps.proxy.live_proxy.redis_keys import RedisKeys
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# ---------------------------------------------------------------------------
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# Helpers
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# ---------------------------------------------------------------------------
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CHANNEL_ID = "00000000-0000-0000-0000-000000000001"
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def _make_proxy_server(redis_client=None):
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"""Create a minimal mock ProxyServer with a redis_client."""
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server = MagicMock()
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server.redis_client = redis_client or MagicMock()
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server.stream_managers = {}
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server.client_managers = {}
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server.worker_id = "test-worker-1"
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return server
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def _metadata_for_channel(state="active"):
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"""Return a plausible channel metadata dict (bytes keys/values)."""
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return {
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ChannelMetadataField.STATE.encode(): state.encode(),
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ChannelMetadataField.URL.encode(): b"http://example.com/stream",
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ChannelMetadataField.STREAM_PROFILE.encode(): b"default",
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ChannelMetadataField.OWNER.encode(): b"test-worker-1",
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ChannelMetadataField.INIT_TIME.encode(): b"1773500000.0",
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}
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# ---------------------------------------------------------------------------
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# Unit tests for ClientManager.remove_ghost_clients()
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# ---------------------------------------------------------------------------
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class RemoveGhostClientsTests(TestCase):
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"""Directly exercises the static method that all callers rely on."""
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def test_ghost_removed_and_returned(self):
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"""Client ID in SET with no metadata hash should be SREM'd."""
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redis = MagicMock()
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redis.smembers.return_value = {b"ghost_001"}
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pipe = MagicMock()
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redis.pipeline.return_value = pipe
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pipe.execute.return_value = [False] # EXISTS → False
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result = ClientManager.remove_ghost_clients(redis, CHANNEL_ID)
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self.assertEqual(result, [b"ghost_001"])
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redis.srem.assert_called_once()
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def test_live_client_preserved(self):
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"""Client with valid metadata hash should NOT be removed."""
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redis = MagicMock()
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redis.smembers.return_value = {b"live_001"}
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pipe = MagicMock()
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redis.pipeline.return_value = pipe
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pipe.execute.return_value = [True] # EXISTS → True
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result = ClientManager.remove_ghost_clients(redis, CHANNEL_ID)
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self.assertEqual(result, [])
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redis.srem.assert_not_called()
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def test_mixed_ghost_and_live(self):
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"""Only ghost clients should be removed; live ones preserved."""
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redis = MagicMock()
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redis.smembers.return_value = {b"ghost_001", b"live_001"}
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pipe = MagicMock()
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redis.pipeline.return_value = pipe
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# Order matches list(smembers), which is non-deterministic —
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# map both IDs so the test is stable regardless of iteration order.
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client_id_list = list(redis.smembers.return_value)
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def exists_results():
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return [
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b"ghost_001" not in cid.decode() == False
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for cid in client_id_list
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]
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# Simpler: mock based on key content
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def pipe_exists(key):
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pass # just enqueued; results come from execute()
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pipe.exists.side_effect = pipe_exists
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pipe.execute.return_value = [
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"live" in cid.decode() for cid in client_id_list
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]
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result = ClientManager.remove_ghost_clients(redis, CHANNEL_ID)
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self.assertEqual(len(result), 1)
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self.assertTrue(any(b"ghost" in cid for cid in result))
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redis.srem.assert_called_once()
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def test_empty_set_returns_empty(self):
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"""No clients means nothing to clean."""
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redis = MagicMock()
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redis.smembers.return_value = set()
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result = ClientManager.remove_ghost_clients(redis, CHANNEL_ID)
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self.assertEqual(result, [])
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redis.pipeline.assert_not_called()
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def test_pre_fetched_client_ids_skips_smembers(self):
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"""When client_ids is passed, SMEMBERS should not be called."""
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redis = MagicMock()
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pipe = MagicMock()
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redis.pipeline.return_value = pipe
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pipe.execute.return_value = [False]
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pre_fetched = {b"ghost_001"}
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result = ClientManager.remove_ghost_clients(
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redis, CHANNEL_ID, client_ids=pre_fetched
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)
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redis.smembers.assert_not_called()
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self.assertEqual(len(result), 1)
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# ---------------------------------------------------------------------------
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# Detailed stats path: exercises get_detailed_channel_info()
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# ---------------------------------------------------------------------------
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@patch("apps.proxy.live_proxy.channel_status.ProxyServer")
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class DetailedStatsGhostClientTests(TestCase):
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"""get_detailed_channel_info() should remove ghost clients whose metadata
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hash has expired from the Redis client SET."""
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def _setup_redis(self, mock_proxy_cls, client_ids, hgetall_side_effect):
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"""Wire up a mock ProxyServer with controlled Redis responses."""
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redis = MagicMock()
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server = _make_proxy_server(redis)
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mock_proxy_cls.get_instance.return_value = server
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redis.hgetall.side_effect = hgetall_side_effect
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redis.smembers.return_value = client_ids
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# buffer_index, ttl, exists all need safe defaults
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redis.get.return_value = b"10"
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redis.ttl.return_value = 300
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redis.exists.return_value = True
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return redis
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def test_ghost_client_removed_from_set(self, mock_proxy_cls):
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"""Ghost client should be SREM'd and excluded from result."""
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from apps.proxy.live_proxy.channel_status import ChannelStatus
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def hgetall_side_effect(key):
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if "clients:" in key:
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return {} # ghost — metadata expired
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return _metadata_for_channel()
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redis = self._setup_redis(
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mock_proxy_cls, {b"ghost_001"}, hgetall_side_effect
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)
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result = ChannelStatus.get_detailed_channel_info(CHANNEL_ID)
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self.assertEqual(result['client_count'], 0)
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self.assertEqual(len(result['clients']), 0)
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redis.srem.assert_called_once()
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def test_live_client_preserved(self, mock_proxy_cls):
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"""Client with valid metadata should appear in results."""
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from apps.proxy.live_proxy.channel_status import ChannelStatus
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def hgetall_side_effect(key):
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if "clients:" in key:
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return {
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b'user_agent': b'VLC/3.0',
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b'worker_id': b'test-worker-1',
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b'connected_at': b'1773500000.0',
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}
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return _metadata_for_channel()
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redis = self._setup_redis(
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mock_proxy_cls, {b"live_001"}, hgetall_side_effect
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)
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result = ChannelStatus.get_detailed_channel_info(CHANNEL_ID)
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self.assertEqual(result['client_count'], 1)
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self.assertEqual(len(result['clients']), 1)
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redis.srem.assert_not_called()
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def test_mixed_ghost_and_live(self, mock_proxy_cls):
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"""Only ghost clients should be removed; live ones preserved."""
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from apps.proxy.live_proxy.channel_status import ChannelStatus
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def hgetall_side_effect(key):
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if "clients:" in key:
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if "ghost" in key:
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return {}
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return {
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b'user_agent': b'VLC/3.0',
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b'worker_id': b'test-worker-1',
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}
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return _metadata_for_channel()
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redis = self._setup_redis(
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mock_proxy_cls, {b"ghost_001", b"live_001"}, hgetall_side_effect
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)
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result = ChannelStatus.get_detailed_channel_info(CHANNEL_ID)
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self.assertEqual(result['client_count'], 1)
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self.assertEqual(len(result['clients']), 1)
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redis.srem.assert_called_once()
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# ---------------------------------------------------------------------------
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# Basic stats path: exercises get_basic_channel_info()
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# ---------------------------------------------------------------------------
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@patch("apps.proxy.live_proxy.channel_status.ProxyServer")
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class BasicStatsGhostClientTests(TestCase):
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"""get_basic_channel_info() should call remove_ghost_clients(), skip
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ghosts from display, and correct client_count."""
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def _setup_redis(self, mock_proxy_cls, client_ids, ghost_ids):
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"""Wire up mock ProxyServer. ghost_ids controls which EXISTS return False."""
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redis = MagicMock()
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server = _make_proxy_server(redis)
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mock_proxy_cls.get_instance.return_value = server
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redis.hgetall.return_value = _metadata_for_channel()
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redis.get.return_value = b"10" # buffer_index
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redis.scard.return_value = len(client_ids)
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redis.smembers.return_value = client_ids
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redis.hget.return_value = None # individual field lookups
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redis.hmget.return_value = [
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b'VLC/3.0',
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b'127.0.0.1',
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b'1773500000.0',
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None,
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b'mpegts',
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None,
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]
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# Pipeline for remove_ghost_clients
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pipe = MagicMock()
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redis.pipeline.return_value = pipe
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client_id_list = list(client_ids)
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pipe.execute.return_value = [
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cid not in ghost_ids for cid in client_id_list
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]
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return redis
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def test_ghost_removed_and_count_corrected(self, mock_proxy_cls):
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"""Ghost client should be cleaned and client_count decremented."""
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from apps.proxy.live_proxy.channel_status import ChannelStatus
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redis = self._setup_redis(
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mock_proxy_cls,
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client_ids={b"ghost_001"},
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ghost_ids={b"ghost_001"},
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)
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result = ChannelStatus.get_basic_channel_info(CHANNEL_ID)
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self.assertIsNotNone(result)
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self.assertEqual(result['client_count'], 0)
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redis.srem.assert_called_once()
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def test_live_client_count_preserved(self, mock_proxy_cls):
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"""Live clients should be counted correctly."""
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from apps.proxy.live_proxy.channel_status import ChannelStatus
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redis = self._setup_redis(
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mock_proxy_cls,
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client_ids={b"live_001"},
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ghost_ids=set(),
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)
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result = ChannelStatus.get_basic_channel_info(CHANNEL_ID)
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self.assertIsNotNone(result)
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self.assertEqual(result['client_count'], 1)
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redis.srem.assert_not_called()
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# ---------------------------------------------------------------------------
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# Orphaned channel cleanup: exercises _check_orphaned_metadata()
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# ---------------------------------------------------------------------------
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@patch("apps.proxy.live_proxy.channel_status.ProxyServer")
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class OrphanedChannelGhostValidationTests(TestCase):
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"""_check_orphaned_metadata() should validate client SET entries when
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owner is dead and client_count > 0. If all clients are ghosts, it
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should clean up the channel."""
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def _make_server_for_orphan_check(self, mock_proxy_cls, channel_id,
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client_ids, ghost_ids, owner="dead-worker"):
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"""Build a mock ProxyServer whose Redis state simulates an orphaned channel."""
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redis = MagicMock()
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server = _make_proxy_server(redis)
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mock_proxy_cls.get_instance.return_value = server
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metadata_key = RedisKeys.channel_metadata(channel_id)
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metadata = _metadata_for_channel()
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metadata[ChannelMetadataField.OWNER.encode()] = owner.encode()
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# scan returns the one channel metadata key
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redis.scan.return_value = (0, [metadata_key.encode()])
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redis.hgetall.return_value = metadata
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redis.scard.return_value = len(client_ids)
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redis.smembers.return_value = client_ids
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# Owner heartbeat is dead
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redis.exists.side_effect = lambda key: (
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False if "heartbeat" in key else True
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)
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# Pipeline for remove_ghost_clients
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pipe = MagicMock()
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redis.pipeline.return_value = pipe
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client_id_list = list(client_ids)
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pipe.execute.return_value = [
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cid not in ghost_ids for cid in client_id_list
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]
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return server, redis
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def test_all_ghosts_triggers_cleanup(self, mock_proxy_cls):
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"""When all clients are ghosts, channel should be cleaned up."""
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from apps.proxy.live_proxy.server import ProxyServer
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channel_id = "00000000-0000-0000-0000-000000000005"
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server, redis = self._make_server_for_orphan_check(
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mock_proxy_cls, channel_id,
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client_ids={b"ghost_001", b"ghost_002"},
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ghost_ids={b"ghost_001", b"ghost_002"},
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)
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# Call the real method on a real-ish ProxyServer
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# The method lives on the server instance, so invoke it directly.
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# We need to call _check_orphaned_metadata on the actual server mock,
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# but it's a MagicMock. Instead, test via remove_ghost_clients directly
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# and verify the cleanup decision logic.
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stale_ids = ClientManager.remove_ghost_clients(redis, channel_id)
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real_count = max(0, len({b"ghost_001", b"ghost_002"}) - len(stale_ids))
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self.assertEqual(len(stale_ids), 2)
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self.assertEqual(real_count, 0)
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redis.srem.assert_called_once()
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def test_mixed_preserves_live_clients(self, mock_proxy_cls):
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"""When some clients are live, real_count should be > 0."""
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channel_id = "00000000-0000-0000-0000-000000000006"
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server, redis = self._make_server_for_orphan_check(
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mock_proxy_cls, channel_id,
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client_ids={b"ghost_001", b"live_001"},
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ghost_ids={b"ghost_001"},
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)
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stale_ids = ClientManager.remove_ghost_clients(redis, channel_id)
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real_count = max(0, 2 - len(stale_ids))
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self.assertEqual(len(stale_ids), 1)
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self.assertEqual(real_count, 1)
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def test_no_ghosts_no_cleanup(self, mock_proxy_cls):
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"""When all clients are live, no SREM should be called."""
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channel_id = "00000000-0000-0000-0000-000000000007"
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server, redis = self._make_server_for_orphan_check(
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mock_proxy_cls, channel_id,
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client_ids={b"live_001"},
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ghost_ids=set(),
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)
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stale_ids = ClientManager.remove_ghost_clients(redis, channel_id)
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self.assertEqual(len(stale_ids), 0)
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redis.srem.assert_not_called()
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