mirror of
https://github.com/xfgryujk/blivedm.git
synced 2024-12-25 20:30:08 +08:00
整理客户端代码
This commit is contained in:
John Smith
parent
34d1a8a44a
commit
2fdfc88fb2
@ -234,6 +234,8 @@ class BLiveClient:
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async def init_room(self):
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"""
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初始化连接房间需要的字段
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:return: True代表没有降级，如果需要降级后还可用，重载这个函数返回True
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"""
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res = True
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@ -304,18 +306,28 @@ class BLiveClient:
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return True
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@staticmethod
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def _make_packet(data, operation):
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def _make_packet(data: dict, operation: int) -> bytes:
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"""
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创建一个要发送给服务器的包
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:param data: 包体JSON数据
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:param operation: 操作码，见Operation
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:return: 整个包的数据
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"""
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body = json.dumps(data).encode('utf-8')
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header = HEADER_STRUCT.pack(
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HEADER_STRUCT.size + len(body),
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HEADER_STRUCT.size,
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1,
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operation,
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1
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HEADER_STRUCT.size + len(body), # pack_len
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HEADER_STRUCT.size, # raw_header_size
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1, # ver
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operation, # operation
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1 # seq_id
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)
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return header + body
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async def _send_auth(self):
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"""
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发送认证包
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"""
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auth_params = {
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'uid': self._uid,
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'roomid': self._room_id,
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@ -329,10 +341,16 @@ class BLiveClient:
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await self._websocket.send_bytes(self._make_packet(auth_params, Operation.AUTH))
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async def _network_coroutine(self):
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"""
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网络协程，负责连接服务器、接收消息、解包
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"""
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# 如果之前未初始化则初始化
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if self._host_server_token is None:
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if not await self.init_room():
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raise InitError('初始化失败')
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try:
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if not await self.init_room():
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raise InitError('初始化失败')
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except asyncio.CancelledError:
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return
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retry_count = 0
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while True:
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@ -340,47 +358,34 @@ class BLiveClient:
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# 连接
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host_server = self._host_server_list[retry_count % len(self._host_server_list)]
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async with self._session.ws_connect(
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f'wss://{host_server["host"]}:{host_server["wss_port"]}/sub',
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f"wss://{host_server['host']}:{host_server['wss_port']}/sub",
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receive_timeout=self._heartbeat_interval + 5,
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ssl=self._ssl
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) as websocket:
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self._websocket = websocket
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await self._send_auth()
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self._heartbeat_timer_handle = self._loop.call_later(
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self._heartbeat_interval, self._on_send_heartbeat
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)
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await self._on_ws_connect()
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# 处理消息
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message: aiohttp.WSMessage
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async for message in websocket:
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retry_count = 0
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if message.type != aiohttp.WSMsgType.BINARY:
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logger.warning('room %d 未知的websocket消息：type=%s %s', self.room_id,
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message.type, message.data)
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continue
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await self._on_ws_message(message)
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try:
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await self._handle_ws_message(message.data)
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except asyncio.CancelledError:
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raise
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except Exception: # noqa
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logger.exception('room %d 处理websocket消息时发生错误：', self.room_id)
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except asyncio.CancelledError:
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break
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except (aiohttp.ClientConnectionError, asyncio.TimeoutError):
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# 重连
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pass
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except asyncio.CancelledError:
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# 正常停止
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break
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except ssl_.SSLError:
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logger.exception('SSL错误：')
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# 证书错误时无法重连
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break
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finally:
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self._websocket = None
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if self._heartbeat_timer_handle is not None:
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self._heartbeat_timer_handle.cancel()
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self._heartbeat_timer_handle = None
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await self._on_ws_close()
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# 准备重连
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retry_count += 1
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logger.warning('room %d 掉线重连中%d', self.room_id, retry_count)
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try:
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@ -388,12 +393,53 @@ class BLiveClient:
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except asyncio.CancelledError:
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break
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async def _on_ws_connect(self):
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"""
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websocket连接成功
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"""
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await self._send_auth()
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self._heartbeat_timer_handle = self._loop.call_later(self._heartbeat_interval, self._on_send_heartbeat)
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def _on_send_heartbeat(self):
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"""
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定时发送心跳包的回调
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"""
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coro = self._websocket.send_bytes(self._make_packet({}, Operation.HEARTBEAT))
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asyncio.ensure_future(coro, loop=self._loop)
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self._heartbeat_timer_handle = self._loop.call_later(self._heartbeat_interval, self._on_send_heartbeat)
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async def _handle_ws_message(self, data):
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async def _on_ws_message(self, message: aiohttp.WSMessage):
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"""
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收到websocket消息
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:param message: websocket消息
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"""
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if message.type != aiohttp.WSMsgType.BINARY:
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logger.warning('room %d 未知的websocket消息：type=%s %s', self.room_id,
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message.type, message.data)
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return
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try:
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await self._parse_ws_message(message.data)
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except asyncio.CancelledError:
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raise
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except Exception: # noqa
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logger.exception('room %d 处理websocket消息时发生错误：', self.room_id)
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async def _on_ws_close(self):
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"""
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websocket连接断开
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"""
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if self._heartbeat_timer_handle is not None:
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self._heartbeat_timer_handle.cancel()
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self._heartbeat_timer_handle = None
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async def _parse_ws_message(self, data: bytes):
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"""
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解析websocket消息
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:param data: websocket消息数据
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"""
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offset = 0
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while offset < len(data):
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try:
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@ -402,6 +448,7 @@ class BLiveClient:
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break
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if header.operation == Operation.HEARTBEAT_REPLY:
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# 心跳包，自己造个消息当成业务消息处理
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popularity = int.from_bytes(
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data[offset + HEADER_STRUCT.size: offset + HEADER_STRUCT.size + 4],
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'big'
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@ -412,35 +459,46 @@ class BLiveClient:
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'popularity': popularity
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}
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}
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await self._handle_command(body)
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await self._parse_command(body)
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elif header.operation == Operation.SEND_MSG_REPLY:
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# 业务消息
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body = data[offset + HEADER_STRUCT.size: offset + header.pack_len]
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if header.ver == WS_BODY_PROTOCOL_VERSION_DEFLATE:
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# 压缩过的先解压，为了避免阻塞网络线程，放在其他线程执行
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body = await self._loop.run_in_executor(None, zlib.decompress, body)
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await self._handle_ws_message(body)
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await self._parse_ws_message(body)
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else:
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# 没压缩过的
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try:
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body = json.loads(body.decode('utf-8'))
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await self._handle_command(body)
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await self._parse_command(body)
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except Exception:
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logger.error('body=%s', body)
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raise
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elif header.operation == Operation.AUTH_REPLY:
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# 认证响应
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await self._websocket.send_bytes(self._make_packet({}, Operation.HEARTBEAT))
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else:
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# 未知消息
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body = data[offset + HEADER_STRUCT.size: offset + header.pack_len]
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logger.warning('room %d 未知包类型：operation=%d %s%s', self.room_id,
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header.operation, header, body)
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offset += header.pack_len
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async def _handle_command(self, command):
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async def _parse_command(self, command: Union[list, dict]):
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"""
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解析业务消息
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:param command: 业务消息
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"""
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# 这里可能会多个消息一起发
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if isinstance(command, list):
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for one_command in command:
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await self._handle_command(one_command)
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await self._parse_command(one_command)
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return
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for handler in self._handlers:
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