mirror of
https://github.com/xfgryujk/blivechat.git
synced 2024-12-28 05:40:19 +08:00
265 lines
8.8 KiB
Python
265 lines
8.8 KiB
Python
# -*- coding: utf-8 -*-
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import asyncio
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import datetime
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import enum
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import json
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import logging
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import time
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from typing import *
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import aiohttp
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import tornado.websocket
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import blivedm.blivedm as blivedm
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logger = logging.getLogger(__name__)
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class Command(enum.IntEnum):
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JOIN_ROOM = 0
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ADD_TEXT = 1
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ADD_GIFT = 2
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ADD_MEMBER = 3
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DEFAULT_AVATAR_URL = 'https://static.hdslb.com/images/member/noface.gif'
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_http_session = aiohttp.ClientSession()
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_avatar_url_cache: Dict[int, str] = {}
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_last_fetch_avatar_time = datetime.datetime.now()
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_last_avatar_failed_time = None
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_uids_to_fetch_avatar = asyncio.Queue(15)
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async def get_avatar_url(user_id):
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if user_id in _avatar_url_cache:
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return _avatar_url_cache[user_id]
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global _last_avatar_failed_time, _last_fetch_avatar_time
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cur_time = datetime.datetime.now()
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# 防止获取头像频率太高被ban
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if (cur_time - _last_fetch_avatar_time).total_seconds() < 0.2:
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# 由_fetch_avatar_loop过一段时间再获取并缓存
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try:
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_uids_to_fetch_avatar.put_nowait(user_id)
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except asyncio.QueueFull:
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pass
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return DEFAULT_AVATAR_URL
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if _last_avatar_failed_time is not None:
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if (cur_time - _last_avatar_failed_time).total_seconds() < 4 * 60 + 3:
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# 5分钟以内被ban，解封大约要15分钟
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return DEFAULT_AVATAR_URL
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else:
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_last_avatar_failed_time = None
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_last_fetch_avatar_time = cur_time
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try:
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async with _http_session.get('https://api.bilibili.com/x/space/acc/info',
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params={'mid': user_id}) as r:
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if r.status != 200: # 可能会被B站ban
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logger.warning('Failed to fetch avatar: status=%d %s uid=%d', r.status, r.reason, user_id)
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_last_avatar_failed_time = cur_time
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return DEFAULT_AVATAR_URL
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data = await r.json()
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except aiohttp.ClientConnectionError:
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return DEFAULT_AVATAR_URL
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url = data['data']['face']
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if not url.endswith('noface.gif'):
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url += '@48w_48h'
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_avatar_url_cache[user_id] = url
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if len(_avatar_url_cache) > 50000:
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for _, key in zip(range(100), _avatar_url_cache):
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del _avatar_url_cache[key]
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return url
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async def _fetch_avatar_loop():
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while True:
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try:
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user_id = await _uids_to_fetch_avatar.get()
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if user_id in _avatar_url_cache:
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continue
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# 延时长一些使实时弹幕有机会获取头像
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await asyncio.sleep(0.4 - (datetime.datetime.now() - _last_fetch_avatar_time).total_seconds())
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asyncio.ensure_future(get_avatar_url(user_id))
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except:
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pass
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asyncio.ensure_future(_fetch_avatar_loop())
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class Room(blivedm.BLiveClient):
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def __init__(self, room_id):
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super().__init__(room_id, session=_http_session)
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self.clients: List['ChatHandler'] = []
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def stop_and_close(self):
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if self.is_running:
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future = self.stop()
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future.add_done_callback(lambda _future: asyncio.ensure_future(self.close()))
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else:
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asyncio.ensure_future(self.close())
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def send_message(self, cmd, data):
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body = json.dumps({'cmd': cmd, 'data': data})
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for client in self.clients:
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client.write_message(body)
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async def _on_receive_danmaku(self, danmaku: blivedm.DanmakuMessage):
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asyncio.ensure_future(self.__on_receive_danmaku(danmaku))
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async def __on_receive_danmaku(self, danmaku: blivedm.DanmakuMessage):
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if danmaku.uid == self.room_owner_uid:
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author_type = 3 # 主播
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elif danmaku.admin:
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author_type = 2 # 房管
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elif danmaku.privilege_type != 0: # 1总督，2提督，3舰长
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author_type = 1 # 舰队
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else:
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author_type = 0
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self.send_message(Command.ADD_TEXT, {
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'avatarUrl': await get_avatar_url(danmaku.uid),
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'timestamp': danmaku.timestamp,
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'authorName': danmaku.uname,
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'authorType': author_type,
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'content': danmaku.msg,
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'privilegeType': danmaku.privilege_type,
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'isGiftDanmaku': bool(danmaku.msg_type),
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'authorLevel': danmaku.user_level,
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'isNewbie': danmaku.urank < 10000,
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'isMobileVerified': bool(danmaku.mobile_verify),
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'medalLevel': 0 if danmaku.room_id != self.room_id else danmaku.medal_level
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})
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async def _on_receive_gift(self, gift: blivedm.GiftMessage):
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if gift.coin_type != 'gold': # 丢人
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return
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self.send_message(Command.ADD_GIFT, {
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'avatarUrl': gift.face,
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'timestamp': gift.timestamp,
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'authorName': gift.uname,
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'giftName': gift.gift_name,
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'giftNum': gift.num,
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'totalCoin': gift.total_coin
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})
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async def _on_buy_guard(self, message: blivedm.GuardBuyMessage):
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asyncio.ensure_future(self.__on_buy_guard(message))
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async def __on_buy_guard(self, message: blivedm.GuardBuyMessage):
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self.send_message(Command.ADD_MEMBER, {
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'avatarUrl': await get_avatar_url(message.uid),
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'timestamp': message.start_time,
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'authorName': message.username
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})
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class RoomManager:
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def __init__(self):
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self._rooms: Dict[int, Room] = {}
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def add_client(self, room_id, client: 'ChatHandler'):
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if room_id in self._rooms:
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room = self._rooms[room_id]
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else:
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logger.info('Creating room %d', room_id)
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room = Room(room_id)
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self._rooms[room_id] = room
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room.start()
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room.clients.append(client)
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if client.application.settings['debug']:
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self.__send_test_message(room)
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def del_client(self, room_id, client: 'ChatHandler'):
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if room_id not in self._rooms:
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return
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room = self._rooms[room_id]
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room.clients.remove(client)
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if not room.clients:
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logger.info('Removing room %d', room_id)
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room.stop_and_close()
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del self._rooms[room_id]
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# 测试用
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@staticmethod
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def __send_test_message(room):
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base_data = {
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'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@48w_48h',
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'timestamp': time.time(),
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'authorName': 'xfgryujk',
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}
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text_data = {
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**base_data,
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'authorType': 0,
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'content': '我能吞下玻璃而不伤身体',
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'privilegeType': 0,
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'isGiftDanmaku': False,
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'authorLevel': 20,
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'isNewbie': False,
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'isMobileVerified': True
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}
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vip_data = base_data
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gift_data = {
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**base_data,
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'giftName': '礼花',
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'giftNum': 1,
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'totalCoin': 28000
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}
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room.send_message(Command.ADD_TEXT, text_data)
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text_data['authorName'] = '主播'
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text_data['authorType'] = 3
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text_data['content'] = "I can eat glass, it doesn't hurt me."
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room.send_message(Command.ADD_TEXT, text_data)
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room.send_message(Command.ADD_MEMBER, vip_data)
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room.send_message(Command.ADD_GIFT, gift_data)
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gift_data['giftName'] = '节奏风暴'
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gift_data['totalCoin'] = 100000
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room.send_message(Command.ADD_GIFT, gift_data)
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gift_data['giftName'] = '摩天大楼'
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gift_data['totalCoin'] = 450000
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room.send_message(Command.ADD_GIFT, gift_data)
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gift_data['giftName'] = '小电视飞船'
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gift_data['totalCoin'] = 1245000
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room.send_message(Command.ADD_GIFT, gift_data)
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room_manager = RoomManager()
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# noinspection PyAbstractClass
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class ChatHandler(tornado.websocket.WebSocketHandler):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.room_id = None
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def open(self):
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logger.info('Websocket connected %s', self.request.remote_ip)
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def on_message(self, message):
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if self.room_id is not None:
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return
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body = json.loads(message)
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if body['cmd'] == Command.JOIN_ROOM:
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self.room_id = int(body['data']['roomId'])
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logger.info('Client %s is joining room %d', self.request.remote_ip, self.room_id)
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room_manager.add_client(self.room_id, self)
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else:
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logger.warning('Unknown cmd: %s data: %s', body['cmd'], body['data'])
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def on_close(self):
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logger.info('Websocket disconnected %s room: %s', self.request.remote_ip, self.room_id)
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if self.room_id is not None:
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room_manager.del_client(self.room_id, self)
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# 跨域测试用
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def check_origin(self, origin):
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if self.application.settings['debug']:
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return True
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return super().check_origin(origin)
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