# -*- coding: utf-8 -*- import asyncio import enum import json import logging import random import time import uuid from typing import * import aiohttp import tornado.websocket import api.base import blivedm.blivedm.clients.web as dm_web_cli import config import services.avatar import services.chat import services.translate import utils.async_io import utils.request logger = logging.getLogger(__name__) class Command(enum.IntEnum): HEARTBEAT = 0 JOIN_ROOM = 1 ADD_TEXT = 2 ADD_GIFT = 3 ADD_MEMBER = 4 ADD_SUPER_CHAT = 5 DEL_SUPER_CHAT = 6 UPDATE_TRANSLATION = 7 FATAL_ERROR = 8 class ContentType(enum.IntEnum): TEXT = 0 EMOTICON = 1 class FatalErrorType(enum.IntEnum): AUTH_CODE_ERROR = 1 TOO_MANY_RETRIES = 2 def make_message_body(cmd, data): return json.dumps( { 'cmd': cmd, 'data': data } ).encode('utf-8') def make_text_message_data( avatar_url: str = services.avatar.DEFAULT_AVATAR_URL, timestamp: int = None, author_name: str = '', author_type: int = 0, content: str = '', privilege_type: int = 0, is_gift_danmaku: bool = False, author_level: int = 1, is_newbie: bool = False, is_mobile_verified: bool = True, medal_level: int = 0, id_: str = None, translation: str = '', content_type: int = ContentType.TEXT, content_type_params: list = None, uid: int = 0 ): # 为了节省带宽用list而不是dict return [ # 0: avatarUrl avatar_url, # 1: timestamp timestamp if timestamp is not None else int(time.time()), # 2: authorName author_name, # 3: authorType author_type, # 4: content content, # 5: privilegeType privilege_type, # 6: isGiftDanmaku 1 if is_gift_danmaku else 0, # 7: authorLevel author_level, # 8: isNewbie 1 if is_newbie else 0, # 9: isMobileVerified 1 if is_mobile_verified else 0, # 10: medalLevel medal_level, # 11: id id_ if id_ is not None else uuid.uuid4().hex, # 12: translation translation, # 13: contentType content_type, # 14: contentTypeParams content_type_params if content_type_params is not None else [], # 15: textEmoticons [], # 已废弃，保留 # 16: uid uid ] def make_emoticon_params(url): return [ # 0: url url, ] def make_translation_message_data(msg_id, translation): return [ # 0: id msg_id, # 1: translation translation, ] class ChatHandler(tornado.websocket.WebSocketHandler): HEARTBEAT_INTERVAL = 10 RECEIVE_TIMEOUT = HEARTBEAT_INTERVAL + 5 def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self._heartbeat_timer_handle = None self._receive_timeout_timer_handle = None self.room_key: Optional[services.chat.RoomKey] = None self.auto_translate = False def open(self): logger.info('client=%s connected', self.request.remote_ip) self._heartbeat_timer_handle = asyncio.get_running_loop().call_later( self.HEARTBEAT_INTERVAL, self._on_send_heartbeat ) self._refresh_receive_timeout_timer() def _on_send_heartbeat(self): self.send_cmd_data(Command.HEARTBEAT, {}) self._heartbeat_timer_handle = asyncio.get_running_loop().call_later( self.HEARTBEAT_INTERVAL, self._on_send_heartbeat ) def _refresh_receive_timeout_timer(self): if self._receive_timeout_timer_handle is not None: self._receive_timeout_timer_handle.cancel() self._receive_timeout_timer_handle = asyncio.get_running_loop().call_later( self.RECEIVE_TIMEOUT, self._on_receive_timeout ) def _on_receive_timeout(self): logger.info('client=%s timed out', self.request.remote_ip) self._receive_timeout_timer_handle = None self.close() def on_close(self): logger.info('client=%s disconnected, room=%s', self.request.remote_ip, self.room_key) if self.has_joined_room: services.chat.client_room_manager.del_client(self.room_key, self) if self._heartbeat_timer_handle is not None: self._heartbeat_timer_handle.cancel() self._heartbeat_timer_handle = None if self._receive_timeout_timer_handle is not None: self._receive_timeout_timer_handle.cancel() self._receive_timeout_timer_handle = None def on_message(self, message): try: body = json.loads(message) cmd = int(body['cmd']) if cmd == Command.HEARTBEAT: # 超时没有加入房间也断开 if self.has_joined_room: self._refresh_receive_timeout_timer() elif cmd == Command.JOIN_ROOM: self._on_join_room_req(body) else: logger.warning('client=%s unknown cmd=%d, body=%s', self.request.remote_ip, cmd, body) except Exception: # noqa logger.exception('client=%s on_message error, message=%s', self.request.remote_ip, message) def _on_join_room_req(self, body: dict): if self.has_joined_room: return data = body['data'] room_key_dict = data.get('roomKey', None) if room_key_dict is not None: room_key_type = services.chat.RoomKeyType(room_key_dict['type']) room_key_value = room_key_dict['value'] if room_key_type == services.chat.RoomKeyType.ROOM_ID: if not isinstance(room_key_value, int): raise TypeError(f'Room key value type error, value={room_key_value}') elif room_key_type == services.chat.RoomKeyType.AUTH_CODE: if not isinstance(room_key_value, str): raise TypeError(f'Room key value type error, value={room_key_value}') else: raise ValueError(f'Unknown RoomKeyType={room_key_type}') else: # 兼容旧版客户端 TODO 过几个版本可以移除 room_key_type = services.chat.RoomKeyType.ROOM_ID room_key_value = int(data['roomId']) self.room_key = services.chat.RoomKey(room_key_type, room_key_value) logger.info('client=%s joining room %s', self.request.remote_ip, self.room_key) try: cfg = data['config'] self.auto_translate = bool(cfg['autoTranslate']) except KeyError: pass services.chat.client_room_manager.add_client(self.room_key, self) utils.async_io.create_task_with_ref(self._on_joined_room()) self._refresh_receive_timeout_timer() # 跨域测试用 def check_origin(self, origin): if self.application.settings['debug']: return True return super().check_origin(origin) @property def has_joined_room(self): return self.room_key is not None def send_cmd_data(self, cmd, data): self.send_body_no_raise(make_message_body(cmd, data)) def send_body_no_raise(self, body: Union[bytes, str, Dict[str, Any]]): try: self.write_message(body) except tornado.websocket.WebSocketClosedError: self.close() async def _on_joined_room(self): if self.settings['debug']: await self._send_test_message() # 不允许自动翻译的提示 if self.auto_translate: cfg = config.get_config() if ( cfg.allow_translate_rooms # 身份码就不管了吧，反正配置正确的情况下不会看到这个提示 and self.room_key.type == services.chat.RoomKeyType.ROOM_ID and self.room_key.value not in cfg.allow_translate_rooms ): self.send_cmd_data(Command.ADD_TEXT, make_text_message_data( author_name='blivechat', author_type=2, content='Translation is not allowed in this room. Please download to use translation', author_level=60, )) # 测试用 async def _send_test_message(self): base_data = { 'avatarUrl': await services.avatar.get_avatar_url(300474, 'xfgryujk'), 'timestamp': int(time.time()), 'authorName': 'xfgryujk', } text_data = make_text_message_data( avatar_url=base_data['avatarUrl'], timestamp=base_data['timestamp'], author_name=base_data['authorName'], content='我能吞下玻璃而不伤身体', author_level=60, ) member_data = { **base_data, 'id': uuid.uuid4().hex, 'privilegeType': 3 } gift_data = { **base_data, 'id': uuid.uuid4().hex, 'totalCoin': 450000, 'giftName': '摩天大楼', 'num': 1 } sc_data = { **base_data, 'id': str(random.randint(1, 65535)), 'price': 30, 'content': 'The quick brown fox jumps over the lazy dog', 'translation': '' } self.send_cmd_data(Command.ADD_TEXT, text_data) text_data[4] = 'te[dog]st' text_data[11] = uuid.uuid4().hex self.send_cmd_data(Command.ADD_TEXT, text_data) text_data[2] = '主播' text_data[3] = 3 text_data[4] = "I can eat glass, it doesn't hurt me." text_data[11] = uuid.uuid4().hex self.send_cmd_data(Command.ADD_TEXT, text_data) self.send_cmd_data(Command.ADD_MEMBER, member_data) self.send_cmd_data(Command.ADD_SUPER_CHAT, sc_data) sc_data['id'] = str(random.randint(1, 65535)) sc_data['price'] = 100 sc_data['content'] = '敏捷的棕色狐狸跳过了懒狗' self.send_cmd_data(Command.ADD_SUPER_CHAT, sc_data) # self.send_cmd_data(Command.DEL_SUPER_CHAT, {'ids': [sc_data['id']]}) self.send_cmd_data(Command.ADD_GIFT, gift_data) gift_data['id'] = uuid.uuid4().hex gift_data['totalCoin'] = 1245000 gift_data['giftName'] = '小电视飞船' self.send_cmd_data(Command.ADD_GIFT, gift_data) class RoomInfoHandler(api.base.ApiHandler): async def get(self): room_id = int(self.get_query_argument('roomId')) logger.info('client=%s getting room info, room=%d', self.request.remote_ip, room_id) room_id, owner_uid = await self._get_room_info(room_id) # 连接其他host必须要key host_server_list = dm_web_cli.DEFAULT_DANMAKU_SERVER_LIST if owner_uid == 0: # 缓存3分钟 self.set_header('Cache-Control', 'private, max-age=180') else: # 缓存1天 self.set_header('Cache-Control', 'private, max-age=86400') self.write({ 'roomId': room_id, 'ownerUid': owner_uid, 'hostServerList': host_server_list }) @staticmethod async def _get_room_info(room_id): try: async with utils.request.http_session.get( dm_web_cli.ROOM_INIT_URL, headers={ **utils.request.BILIBILI_COMMON_HEADERS, 'Origin': 'https://live.bilibili.com', 'Referer': f'https://live.bilibili.com/{room_id}' }, params={ 'room_id': room_id } ) as res: if res.status != 200: logger.warning('room=%d _get_room_info failed: %d %s', room_id, res.status, res.reason) return room_id, 0 data = await res.json() except (aiohttp.ClientConnectionError, asyncio.TimeoutError): logger.exception('room=%d _get_room_info failed', room_id) return room_id, 0 if data['code'] != 0: logger.warning('room=%d _get_room_info failed: %s', room_id, data['message']) return room_id, 0 room_info = data['data']['room_info'] return room_info['room_id'], room_info['uid'] class AvatarHandler(api.base.ApiHandler): async def get(self): uid = int(self.get_query_argument('uid')) username = self.get_query_argument('username', '') avatar_url = await services.avatar.get_avatar_url_or_none(uid) if avatar_url is None: avatar_url = services.avatar.get_default_avatar_url(uid, username) # 缓存3分钟 self.set_header('Cache-Control', 'private, max-age=180') else: # 缓存1天 self.set_header('Cache-Control', 'private, max-age=86400') self.write({'avatarUrl': avatar_url}) class TextEmoticonMappingsHandler(api.base.ApiHandler): async def get(self): # 缓存1天 self.set_header('Cache-Control', 'private, max-age=86400') cfg = config.get_config() self.write({'textEmoticons': cfg.text_emoticons}) ROUTES = [ (r'/api/chat', ChatHandler), (r'/api/room_info', RoomInfoHandler), (r'/api/avatar_url', AvatarHandler), (r'/api/text_emoticon_mappings', TextEmoticonMappingsHandler), ]