Merge branch 'dev'

Bump http-proxy from 1.18.0 to 1.18.1 in /frontend

.dockerignore

@@ -0,0 +1,21 @@
+# compiled output
+**/__pycache__/
+build/
+**/dist/
+
+# dependencies
+**/node_modules/
+
+# IDEs and editors
+.idea/
+
+# misc
+**/.git*
+*.spec
+screenshots/
+README.md
+
+# runtime data
+data/*
+!data/config.ini
+log/*

.gitignore

@@ -105,3 +105,5 @@ venv.bak/
 
 
 .idea/
+data/database.db
+*.log*

Dockerfile

@@ -0,0 +1,35 @@
+# 运行时
+FROM python:3.6.8-slim-stretch
+RUN mv /etc/apt/sources.list /etc/apt/sources.list.bak \
+    && echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main contrib non-free">>/etc/apt/sources.list \
+    && echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main contrib non-free">>/etc/apt/sources.list \
+    && echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main contrib non-free">>/etc/apt/sources.list \
+    && echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian-security stretch/updates main contrib non-free">>/etc/apt/sources.list \
+    && apt-get update \
+    && apt-get install -y wget tar xz-utils
+RUN wget https://nodejs.org/dist/v10.16.0/node-v10.16.0-linux-x64.tar.xz \
+    && tar -xvf node-v10.16.0-linux-x64.tar.xz \
+    && rm node-v10.16.0-linux-x64.tar.xz \
+    && ln -s /node-v10.16.0-linux-x64/bin/node /usr/local/bin/node \
+    && ln -s /node-v10.16.0-linux-x64/bin/npm /usr/local/bin/npm
+
+# 后端依赖
+WORKDIR /blivechat
+COPY requirements.txt ./
+RUN pip3 install --no-cache-dir -i https://pypi.tuna.tsinghua.edu.cn/simple -r requirements.txt
+
+# 前端依赖
+WORKDIR ./frontend
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm i --registry=https://registry.npm.taobao.org
+
+# 编译前端
+COPY . ../
+RUN npm run build
+
+# 运行
+WORKDIR ..
+VOLUME /blivechat/data /blivechat/log /blivechat/frontend/dist
+EXPOSE 12450
+ENTRYPOINT ["python3", "main.py"]
+CMD ["--host", "0.0.0.0", "--port", "12450"]

README.md

@@ -1,41 +1,135 @@
 # blivechat
-用于OBS的仿YouTube风格的bilibili直播聊天层
+用于OBS的仿YouTube风格的bilibili直播评论栏
 
-最近喜欢看VTuber，想为此写些程序，于是有了这个东西。~~写到一半发现有类似项目了，而且还是纯前端实现的：[bilibili-live-chat](https://github.com/Tsuk1ko/bilibili-live-chat)。~~ 本项目就当做练手吧，而且对YouTube的模仿程度更高（指样式和Super Chat）
+最近喜欢看VTuber，想为此写些程序，于是有了这个东西。~~写到一半发现有类似项目了：[bilibili-live-chat](https://github.com/Tsuk1ko/bilibili-live-chat)、[BiliChat](https://github.com/3Shain/BiliChat)~~
 
-![截图](https://github.com/xfgryujk/blivechat/blob/master/screenshot.png)  
+![OBS截图](https://github.com/xfgryujk/blivechat/blob/master/screenshots/obs.png)  
+![Chrome截图](https://github.com/xfgryujk/blivechat/blob/master/screenshots/chrome.png)  
+![样式生成器截图](https://github.com/xfgryujk/blivechat/blob/master/screenshots/stylegen.png)  
 
 ## 特性
-* 兼容YouTube直播chat的样式，生成样式参考[https://chatv2.septapus.com/](https://chatv2.septapus.com/)
-* 金瓜子礼物模仿Super Chat显示
+* 兼容YouTube直播评论栏的样式
+* 金瓜子礼物模仿醒目留言显示
 * 高亮舰队、房管、主播的用户名
+* 支持屏蔽弹幕、合并相似弹幕等设置
+* 自带样式生成器
+* 支持自动翻译弹幕、醒目留言到日语
 
 ## 使用方法
-### 发布版
-1. 下载[发布版](https://github.com/xfgryujk/blivechat/releases)（仅提供Windows）
+### 一、本地使用
+1. 下载[发布版](https://github.com/xfgryujk/blivechat/releases)（仅提供x64 Windows版）
 2. 双击`blivechat.exe`运行服务器，或者用命令行可以指定host和端口号：
    ```bat
-   blivechat.exe --host 127.0.0.1 --port 80
+   blivechat.exe --host 127.0.0.1 --port 12450
    ```
-3. 用浏览器打开[http://localhost](http://localhost)，输入房间号，进入，复制房间URL（其实就是http://localhost/room/<房间ID>）
-4. （可选）在[https://chatv2.septapus.com/](https://chatv2.septapus.com/)生成样式，复制CSS
+3. 用浏览器打开[http://localhost:12450](http://localhost:12450)，输入房间ID，复制房间URL
+4. 用样式生成器生成样式，复制CSS
 5. 在OBS中添加浏览器源，输入URL和自定义CSS
 
-### 源代码版
-1. 编译前端（需要安装NPM）：
+**注意事项：**
+
+* 本地使用时不要关闭blivechat.exe那个黑框，否则不能继续获取弹幕
+* 样式生成器没有列出所有本地字体，但是可以手动输入本地字体
+
+### 二、公共服务器
+请优先在本地使用，使用公共服务器会有更大的弹幕延迟，而且服务器故障时可能发生直播事故
+
+* [公共服务器](http://chat.bilisc.com/)
+* [仅样式生成器](https://style.vtbs.moe/)
+
+### 三、源代码版（自建服务器或在Windows以外平台）
+0. 由于使用了git子模块，clone时需要加上`--recursive`参数：
+   ```sh
+   git clone --recursive https://github.com/xfgryujk/blivechat.git
+   ```
+   如果已经clone，拉子模块的方法：
+   ```sh
+   git submodule update --init --recursive
+   ```
+1. 编译前端（需要安装Node.js）：
    ```sh
    cd frontend
    npm i
    npm run build
    ```
-2. 运行服务器：
+2. 运行服务器（需要Python3.6以上版本）：
    ```sh
+   pip3 install -r requirements.txt
    python3 main.py
    ```
    或者可以指定host和端口号：
    ```sh
-   python3 main.py --host 127.0.0.1 --port 80
+   python3 main.py --host 127.0.0.1 --port 12450
    ```
-3. 用浏览器打开[http://localhost](http://localhost)，输入房间号，进入，复制房间URL（其实就是http://localhost/room/<房间ID>）
-4. （可选）在[https://chatv2.septapus.com/](https://chatv2.septapus.com/)生成样式，复制CSS
-5. 在OBS中添加浏览器源，输入URL和自定义CSS
+3. 用浏览器打开[http://localhost:12450](http://localhost:12450)，以下略
+
+### 四、Docker（自建服务器）
+1. ```sh
+   docker run --name blivechat -d -p 12450:12450 \
+     --mount source=blc-data,target=/blivechat/data \
+     --mount source=blc-log,target=/blivechat/log \
+     --mount source=blc-frontend,target=/blivechat/frontend/dist \
+     xfgryujk/blivechat:latest
+   ```
+2. 用浏览器打开[http://localhost:12450](http://localhost:12450)，以下略
+
+### nginx配置（可选）
+自建服务器时使用，`sudo vim /etc/nginx/sites-enabled/blivechat.conf`
+
+```conf
+upstream blivechat {
+	keepalive 8;
+	# blivechat地址
+	server 127.0.0.1:12450;
+}
+
+# 强制HTTPS
+server {
+	listen 80;
+	listen [::]:80;
+	server_name YOUR.DOMAIN.NAME;
+
+	return 301 https://$server_name$request_uri;
+}
+
+server {
+	listen 443 ssl;
+	listen [::]:443 ssl;
+	server_name YOUR.DOMAIN.NAME;
+
+	# SSL
+	ssl_certificate /PATH/TO/CERT.crt;
+	ssl_certificate_key /PATH/TO/CERT_KEY.key;
+
+	# 代理header
+	proxy_http_version 1.1;
+	proxy_set_header Host $host;
+	proxy_set_header Connection "";
+	proxy_set_header X-Real-IP $remote_addr;
+	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+	# 静态文件
+	location / {
+		root /PATH/TO/BLIVECHAT/frontend/dist;
+		# 如果文件不存在，交给前端路由
+		try_files $uri $uri/ /index.html;
+	}
+	# 动态API
+	location /api {
+		proxy_pass http://blivechat;
+	}
+	# websocket
+	location = /api/chat {
+		proxy_pass http://blivechat;
+
+		# 代理websocket必须设置
+		proxy_set_header Upgrade $http_upgrade;
+		proxy_set_header Connection "Upgrade";
+
+		# 由于这个块有proxy_set_header，这些不会自动继承
+		proxy_set_header Host $host;
+		proxy_set_header X-Real-IP $remote_addr;
+		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+	}
+}
+```

api/base.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+
+import json
+
+import tornado.web
+
+
+# noinspection PyAbstractClass
+class ApiHandler(tornado.web.RequestHandler):
+    def set_default_headers(self):
+        # 跨域测试用
+        if not self.application.settings['debug']:
+            return
+        self.set_header('Access-Control-Allow-Origin', '*')
+        self.set_header('Access-Control-Allow-Methods', 'OPTIONS, PUT, POST, GET, DELETE')
+        if 'Access-Control-Request-Headers' in self.request.headers:
+            self.set_header('Access-Control-Allow-Headers',
+                            self.request.headers['Access-Control-Request-Headers'])
+
+    def prepare(self):
+        if self.request.headers.get('Content-Type', '').startswith('application/json'):
+            try:
+                self.json_args = json.loads(self.request.body)
+            except json.JSONDecodeError:
+                self.json_args = None
+        else:
+            self.json_args = None
+
+    async def options(self, *_args, **_kwargs):
+        # 跨域测试用
+        self.set_status(204 if self.application.settings['debug'] else 405)

api/chat.py

@@ -0,0 +1,608 @@
+# -*- 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 as blivedm
+import config
+import models.avatar
+import models.translate
+
+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
+
+
+_http_session = aiohttp.ClientSession()
+
+room_manager: Optional['RoomManager'] = None
+
+
+def init():
+    global room_manager
+    room_manager = RoomManager()
+
+
+class Room(blivedm.BLiveClient):
+    # 重新定义parse_XXX是为了减少对字段名的依赖，防止B站改字段名
+    def __parse_danmaku(self, command):
+        info = command['info']
+        if info[3]:
+            room_id = info[3][3]
+            medal_level = info[3][0]
+        else:
+            room_id = medal_level = 0
+        return self._on_receive_danmaku(blivedm.DanmakuMessage(
+            None, None, None, info[0][4], None, None, info[0][9], None,
+            info[1],
+            info[2][0], info[2][1], info[2][2], None, None, info[2][5], info[2][6], None,
+            medal_level, None, None, room_id, None, None,
+            info[4][0], None, None,
+            None, None,
+            info[7]
+        ))
+
+    def __parse_gift(self, command):
+        data = command['data']
+        return self._on_receive_gift(blivedm.GiftMessage(
+            data['giftName'], data['num'], data['uname'], data['face'], None,
+            data['uid'], data['timestamp'], None, None,
+            None, None, None, data['coin_type'], data['total_coin']
+        ))
+
+    def __parse_buy_guard(self, command):
+        data = command['data']
+        return self._on_buy_guard(blivedm.GuardBuyMessage(
+            data['uid'], data['username'], data['guard_level'], None, None,
+            None, None, data['start_time'], None
+        ))
+
+    def __parse_super_chat(self, command):
+        data = command['data']
+        return self._on_super_chat(blivedm.SuperChatMessage(
+            data['price'], data['message'], None, data['start_time'],
+            None, None, data['id'], None,
+            None, data['uid'], data['user_info']['uname'],
+            data['user_info']['face'], None,
+            None, None,
+            None, None, None,
+            None
+        ))
+
+    _COMMAND_HANDLERS = {
+        **blivedm.BLiveClient._COMMAND_HANDLERS,
+        'DANMU_MSG': __parse_danmaku,
+        'SEND_GIFT': __parse_gift,
+        'GUARD_BUY': __parse_buy_guard,
+        'SUPER_CHAT_MESSAGE': __parse_super_chat
+    }
+
+    def __init__(self, room_id):
+        super().__init__(room_id, session=_http_session, heartbeat_interval=10)
+        self.clients: List['ChatHandler'] = []
+        self.auto_translate_count = 0
+
+    async def init_room(self):
+        await super().init_room()
+        return True
+
+    def stop_and_close(self):
+        if self.is_running:
+            future = self.stop()
+            future.add_done_callback(lambda _future: asyncio.ensure_future(self.close()))
+        else:
+            asyncio.ensure_future(self.close())
+
+    def send_message(self, cmd, data):
+        body = json.dumps({'cmd': cmd, 'data': data})
+        for client in self.clients:
+            try:
+                client.write_message(body)
+            except tornado.websocket.WebSocketClosedError:
+                room_manager.del_client(self.room_id, client)
+
+    def send_message_if(self, can_send_func: Callable[['ChatHandler'], bool], cmd, data):
+        body = json.dumps({'cmd': cmd, 'data': data})
+        for client in filter(can_send_func, self.clients):
+            try:
+                client.write_message(body)
+            except tornado.websocket.WebSocketClosedError:
+                room_manager.del_client(self.room_id, client)
+
+    async def _on_receive_danmaku(self, danmaku: blivedm.DanmakuMessage):
+        asyncio.ensure_future(self.__on_receive_danmaku(danmaku))
+
+    async def __on_receive_danmaku(self, danmaku: blivedm.DanmakuMessage):
+        if danmaku.uid == self.room_owner_uid:
+            author_type = 3  # 主播
+        elif danmaku.admin:
+            author_type = 2  # 房管
+        elif danmaku.privilege_type != 0:  # 1总督，2提督，3舰长
+            author_type = 1  # 舰队
+        else:
+            author_type = 0
+
+        need_translate = self._need_translate(danmaku.msg)
+        if need_translate:
+            translation = models.translate.get_translation_from_cache(danmaku.msg)
+            if translation is None:
+                # 没有缓存，需要后面异步翻译后通知
+                translation = ''
+            else:
+                need_translate = False
+        else:
+            translation = ''
+
+        id_ = uuid.uuid4().hex
+        # 为了节省带宽用list而不是dict
+        self.send_message(Command.ADD_TEXT, make_text_message(
+            await models.avatar.get_avatar_url(danmaku.uid),
+            int(danmaku.timestamp / 1000),
+            danmaku.uname,
+            author_type,
+            danmaku.msg,
+            danmaku.privilege_type,
+            danmaku.msg_type,
+            danmaku.user_level,
+            danmaku.urank < 10000,
+            danmaku.mobile_verify,
+            0 if danmaku.room_id != self.room_id else danmaku.medal_level,
+            id_,
+            translation
+        ))
+
+        if need_translate:
+            await self._translate_and_response(danmaku.msg, id_)
+
+    async def _on_receive_gift(self, gift: blivedm.GiftMessage):
+        avatar_url = models.avatar.process_avatar_url(gift.face)
+        models.avatar.update_avatar_cache(gift.uid, avatar_url)
+        if gift.coin_type != 'gold':  # 丢人
+            return
+        id_ = uuid.uuid4().hex
+        self.send_message(Command.ADD_GIFT, {
+            'id': id_,
+            'avatarUrl': avatar_url,
+            'timestamp': gift.timestamp,
+            'authorName': gift.uname,
+            'totalCoin': gift.total_coin,
+            'giftName': gift.gift_name,
+            'num': gift.num
+        })
+
+    async def _on_buy_guard(self, message: blivedm.GuardBuyMessage):
+        asyncio.ensure_future(self.__on_buy_guard(message))
+
+    async def __on_buy_guard(self, message: blivedm.GuardBuyMessage):
+        id_ = uuid.uuid4().hex
+        self.send_message(Command.ADD_MEMBER, {
+            'id': id_,
+            'avatarUrl': await models.avatar.get_avatar_url(message.uid),
+            'timestamp': message.start_time,
+            'authorName': message.username,
+            'privilegeType': message.guard_level
+        })
+
+    async def _on_super_chat(self, message: blivedm.SuperChatMessage):
+        avatar_url = models.avatar.process_avatar_url(message.face)
+        models.avatar.update_avatar_cache(message.uid, avatar_url)
+
+        need_translate = self._need_translate(message.message)
+        if need_translate:
+            translation = models.translate.get_translation_from_cache(message.message)
+            if translation is None:
+                # 没有缓存，需要后面异步翻译后通知
+                translation = ''
+            else:
+                need_translate = False
+        else:
+            translation = ''
+
+        id_ = str(message.id)
+        self.send_message(Command.ADD_SUPER_CHAT, {
+            'id': id_,
+            'avatarUrl': avatar_url,
+            'timestamp': message.start_time,
+            'authorName': message.uname,
+            'price': message.price,
+            'content': message.message,
+            'translation': translation
+        })
+
+        if need_translate:
+            asyncio.ensure_future(self._translate_and_response(message.message, id_))
+
+    async def _on_super_chat_delete(self, message: blivedm.SuperChatDeleteMessage):
+        self.send_message(Command.ADD_SUPER_CHAT, {
+            'ids': list(map(str, message.ids))
+        })
+
+    def _need_translate(self, text):
+        cfg = config.get_config()
+        return (
+            cfg.enable_translate
+            and (not cfg.allow_translate_rooms or self.room_id in cfg.allow_translate_rooms)
+            and self.auto_translate_count > 0
+            and models.translate.need_translate(text)
+        )
+
+    async def _translate_and_response(self, text, msg_id):
+        translation = await models.translate.translate(text)
+        if translation is None:
+            return
+        self.send_message_if(
+            lambda client: client.auto_translate,
+            Command.UPDATE_TRANSLATION, make_translation_message(
+                msg_id,
+                translation
+            )
+        )
+
+
+def make_text_message(avatar_url, timestamp, author_name, author_type, content, privilege_type,
+                      is_gift_danmaku, author_level, is_newbie, is_mobile_verified, medal_level,
+                      id_, translation):
+    return [
+        # 0: avatarUrl
+        avatar_url,
+        # 1: timestamp
+        timestamp,
+        # 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_,
+        # 12: translation
+        translation
+    ]
+
+
+def make_translation_message(msg_id, translation):
+    return [
+        # 0: id
+        msg_id,
+        # 1: translation
+        translation
+    ]
+
+
+class RoomManager:
+    def __init__(self):
+        self._rooms: Dict[int, Room] = {}
+
+    async def add_client(self, room_id, client: 'ChatHandler'):
+        if room_id not in self._rooms:
+            if not await self._add_room(room_id):
+                client.close()
+                return
+        room = self._rooms.get(room_id, None)
+        if room is None:
+            return
+
+        room.clients.append(client)
+        logger.info('%d clients in room %s', len(room.clients), room_id)
+        if client.auto_translate:
+            room.auto_translate_count += 1
+
+        await client.on_join_room()
+
+    def del_client(self, room_id, client: 'ChatHandler'):
+        room = self._rooms.get(room_id, None)
+        if room is None:
+            return
+
+        try:
+            room.clients.remove(client)
+        except ValueError:
+            # _add_room未完成，没有执行到room.clients.append
+            pass
+        else:
+            logger.info('%d clients in room %s', len(room.clients), room_id)
+            if client.auto_translate:
+                room.auto_translate_count = max(0, room.auto_translate_count - 1)
+
+        if not room.clients:
+            self._del_room(room_id)
+
+    async def _add_room(self, room_id):
+        if room_id in self._rooms:
+            return True
+        logger.info('Creating room %d', room_id)
+        self._rooms[room_id] = room = Room(room_id)
+        if await room.init_room():
+            room.start()
+            logger.info('%d rooms', len(self._rooms))
+            return True
+        else:
+            self._del_room(room_id)
+            return False
+
+    def _del_room(self, room_id):
+        room = self._rooms.get(room_id, None)
+        if room is None:
+            return
+        logger.info('Removing room %d', room_id)
+        for client in room.clients:
+            client.close()
+        room.stop_and_close()
+        self._rooms.pop(room_id, None)
+        logger.info('%d rooms', len(self._rooms))
+
+
+# noinspection PyAbstractClass
+class ChatHandler(tornado.websocket.WebSocketHandler):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._close_on_timeout_future = None
+        self.room_id = None
+        self.auto_translate = False
+
+    def open(self):
+        logger.info('Websocket connected %s', self.request.remote_ip)
+        self._close_on_timeout_future = asyncio.ensure_future(self._close_on_timeout())
+
+    async def _close_on_timeout(self):
+        try:
+            # 超过一定时间还没加入房间则断开
+            await asyncio.sleep(10)
+            logger.warning('Client %s joining room timed out', self.request.remote_ip)
+            self.close()
+        except (asyncio.CancelledError, tornado.websocket.WebSocketClosedError):
+            pass
+
+    def on_message(self, message):
+        try:
+            body = json.loads(message)
+            cmd = body['cmd']
+            if cmd == Command.HEARTBEAT:
+                return
+            elif cmd == Command.JOIN_ROOM:
+                if self.has_joined_room:
+                    return
+                self.room_id = int(body['data']['roomId'])
+                logger.info('Client %s is joining room %d', self.request.remote_ip, self.room_id)
+                try:
+                    cfg = body['data']['config']
+                    self.auto_translate = cfg['autoTranslate']
+                except KeyError:
+                    pass
+
+                asyncio.ensure_future(room_manager.add_client(self.room_id, self))
+                self._close_on_timeout_future.cancel()
+                self._close_on_timeout_future = None
+            else:
+                logger.warning('Unknown cmd, client: %s, cmd: %d, body: %s', self.request.remote_ip, cmd, body)
+        except:
+            logger.exception('on_message error, client: %s, message: %s', self.request.remote_ip, message)
+
+    def on_close(self):
+        logger.info('Websocket disconnected %s room: %s', self.request.remote_ip, str(self.room_id))
+        if self.has_joined_room:
+            room_manager.del_client(self.room_id, self)
+        if self._close_on_timeout_future is not None:
+            self._close_on_timeout_future.cancel()
+            self._close_on_timeout_future = None
+
+    # 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_id is not None
+
+    def send_message(self, cmd, data):
+        body = json.dumps({'cmd': cmd, 'data': data})
+        try:
+            self.write_message(body)
+        except tornado.websocket.WebSocketClosedError:
+            self.on_close()
+
+    async def on_join_room(self):
+        if self.application.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 and self.room_id not in cfg.allow_translate_rooms:
+                self.send_message(Command.ADD_TEXT, make_text_message(
+                    models.avatar.DEFAULT_AVATAR_URL,
+                    int(time.time()),
+                    'blivechat',
+                    2,
+                    'Translation is not allowed in this room. Please download to use translation',
+                    0,
+                    False,
+                    60,
+                    False,
+                    True,
+                    0,
+                    uuid.uuid4().hex,
+                    ''
+                ))
+
+    # 测试用
+    async def send_test_message(self):
+        base_data = {
+            'avatarUrl': await models.avatar.get_avatar_url(300474),
+            'timestamp': int(time.time()),
+            'authorName': 'xfgryujk',
+        }
+        text_data = make_text_message(
+            base_data['avatarUrl'],
+            base_data['timestamp'],
+            base_data['authorName'],
+            0,
+            '我能吞下玻璃而不伤身体',
+            0,
+            False,
+            20,
+            False,
+            True,
+            0,
+            uuid.uuid4().hex,
+            ''
+        )
+        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_message(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_message(Command.ADD_TEXT, text_data)
+        self.send_message(Command.ADD_MEMBER, member_data)
+        self.send_message(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_message(Command.ADD_SUPER_CHAT, sc_data)
+        # self.send_message(Command.DEL_SUPER_CHAT, {'ids': [sc_data['id']]})
+        self.send_message(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_message(Command.ADD_GIFT, gift_data)
+
+
+# noinspection PyAbstractClass
+class RoomInfoHandler(api.base.ApiHandler):
+    _host_server_list_cache = blivedm.DEFAULT_DANMAKU_SERVER_LIST
+
+    async def get(self):
+        room_id = int(self.get_query_argument('roomId'))
+        logger.info('Client %s is getting room info %d', self.request.remote_ip, room_id)
+        room_id, owner_uid = await self._get_room_info(room_id)
+        host_server_list = await self._get_server_host_list(room_id)
+        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 _http_session.get(blivedm.ROOM_INIT_URL, 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:
+            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['msg'])
+            return room_id, 0
+
+        room_info = data['data']['room_info']
+        return room_info['room_id'], room_info['uid']
+
+    @classmethod
+    async def _get_server_host_list(cls, _room_id):
+        return cls._host_server_list_cache
+
+        # 连接其他host必须要key
+        # try:
+        #     async with _http_session.get(blivedm.DANMAKU_SERVER_CONF_URL, params={'id': room_id, 'type': 0}
+        #                                  ) as res:
+        #         if res.status != 200:
+        #             logger.warning('room %d _get_server_host_list failed: %d %s', room_id,
+        #                            res.status, res.reason)
+        #             return cls._host_server_list_cache
+        #         data = await res.json()
+        # except aiohttp.ClientConnectionError:
+        #     logger.exception('room %d _get_server_host_list failed', room_id)
+        #     return cls._host_server_list_cache
+        #
+        # if data['code'] != 0:
+        #     logger.warning('room %d _get_server_host_list failed: %s', room_id, data['msg'])
+        #     return cls._host_server_list_cache
+        #
+        # host_server_list = data['data']['host_list']
+        # if not host_server_list:
+        #     logger.warning('room %d _get_server_host_list failed: host_server_list is empty')
+        #     return cls._host_server_list_cache
+        #
+        # cls._host_server_list_cache = host_server_list
+        # return host_server_list
+
+
+# noinspection PyAbstractClass
+class AvatarHandler(api.base.ApiHandler):
+    async def get(self):
+        uid = int(self.get_query_argument('uid'))
+        avatar_url = await models.avatar.get_avatar_url_or_none(uid)
+        if avatar_url is None:
+            avatar_url = models.avatar.DEFAULT_AVATAR_URL
+            # 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
+        })

api/main.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+import tornado.web
+
+import api.base
+import config
+import update
+
+
+# noinspection PyAbstractClass
+class MainHandler(tornado.web.StaticFileHandler):
+    """为了使用Vue Router的history模式，把不存在的文件请求转发到index.html"""
+    async def get(self, path, include_body=True):
+        try:
+            await super().get(path, include_body)
+        except tornado.web.HTTPError as e:
+            if e.status_code != 404:
+                raise
+            # 不存在的文件请求转发到index.html，交给前端路由
+            await super().get('index.html', include_body)
+
+
+# noinspection PyAbstractClass
+class ServerInfoHandler(api.base.ApiHandler):
+    async def get(self):
+        cfg = config.get_config()
+        self.write({
+            'version': update.VERSION,
+            'config': {
+                'enableTranslate': cfg.enable_translate,
+                'loaderUrl': cfg.loader_url
+            }
+        })

chat.py

@@ -1,238 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import asyncio
-import enum
-import json
-import logging
-import time
-from typing import *
-
-import aiohttp
-import tornado.websocket
-
-import blivedm.blivedm as blivedm
-
-logger = logging.getLogger(__name__)
-
-
-class Command(enum.IntEnum):
-    JOIN_ROOM = 0
-    ADD_TEXT = 1
-    ADD_GIFT = 2
-    ADD_VIP = 3
-
-
-_http_session = aiohttp.ClientSession()
-_avatar_url_cache: Dict[int, str] = {}
-
-
-async def get_avatar_url(user_id):
-    if user_id in _avatar_url_cache:
-        return _avatar_url_cache[user_id]
-    async with _http_session.get('https://api.bilibili.com/x/space/acc/info',
-                                 params={'mid': user_id}) as r:
-        data = await r.json()
-    url = data['data']['face']
-    if not url.endswith('noface.gif'):
-        url += '@24w_24h.webp'
-    _avatar_url_cache[user_id] = url
-
-    if len(_avatar_url_cache) > 10000:
-        for _, key in zip(range(100), _avatar_url_cache):
-            del _avatar_url_cache[key]
-
-    return url
-
-
-class Room(blivedm.BLiveClient):
-    _COMMAND_HANDLERS = blivedm.BLiveClient._COMMAND_HANDLERS.copy()
-
-    def __init__(self, room_id):
-        super().__init__(room_id, session=_http_session)
-        self.future = None
-        self.clients: List['ChatHandler'] = []
-        self.owner_id = None
-
-    def start(self):
-        self.future = self.run()
-
-    def stop(self):
-        if self.future is not None:
-            self.future.cancel()
-        asyncio.ensure_future(self.close())
-
-    async def _get_room_id(self):
-        """重载用来获取主播UID"""
-        async with self._session.get(blivedm.ROOM_INIT_URL,
-                                     params={'id': self._short_id},
-                                     ssl=self._ssl) as res:
-            if res.status == 200:
-                data = await res.json()
-                if data['code'] == 0:
-                    self._room_id = data['data']['room_id']
-                    self.owner_id = data['data']['uid']
-                else:
-                    raise ConnectionAbortedError('获取房间ID失败：' + data['msg'])
-            else:
-                raise ConnectionAbortedError('获取房间ID失败：' + res.reason)
-
-    def send_message(self, cmd, data):
-        body = json.dumps({'cmd': cmd, 'data': data})
-        for client in self.clients:
-            client.write_message(body)
-
-    async def __my_on_get_danmaku(self, command):
-        if command['info'][2][0] == self.owner_id:
-            author_type = 3  # 主播
-        elif command['info'][2][2] != 0:
-            author_type = 2  # 房管
-        elif command['info'][7] != 0:  # 1总督，2提督，3舰长
-            author_type = 1  # 舰队
-        else:
-            author_type = 0
-        self.send_message(Command.ADD_TEXT, {
-            'avatarUrl': await get_avatar_url(command['info'][2][0]),
-            'timestamp': command['info'][0][4],
-            'authorName': command['info'][2][1],
-            'authorType': author_type,
-            'content': command['info'][1]
-        })
-
-    _COMMAND_HANDLERS['DANMU_MSG'] = __my_on_get_danmaku
-
-    async def __my_on_gift(self, command):
-        if command['data']['coin_type'] != 'gold':  # 丢人
-            return
-        self.send_message(Command.ADD_GIFT, {
-            'avatarUrl': await get_avatar_url(command['data']['uid']),
-            'authorName': command['data']['uname'],
-            'giftName': command['data']['giftName'],
-            'giftNum': command['data']['num'],
-            'totalCoin': command['data']['total_coin']
-        })
-
-    _COMMAND_HANDLERS['SEND_GIFT'] = __my_on_gift
-
-    async def __on_new_member(self, command):
-        # 新舰长 {'cmd': 'GUARD_BUY', 'data': {'uid': 1822222, 'username': 'MRSKING', 'guard_level': 3,
-        # 'num': 1, 'price': 198000, 'gift_id': 10003, 'gift_name': '舰长', 'start_time': 1558506165,
-        # 'end_time': 1558506165}}
-        self.send_message(Command.ADD_VIP, {
-            'avatarUrl':  await get_avatar_url(command['data']['uid']),
-            'authorName': command['data']['username'],
-        })
-
-    _COMMAND_HANDLERS['GUARD_BUY'] = __on_new_member
-
-
-class RoomManager:
-    def __init__(self):
-        self._rooms: Dict[int, Room] = {}
-
-    def add_client(self, room_id, client):
-        if room_id in self._rooms:
-            room = self._rooms[room_id]
-        else:
-            logger.info('创建房间%d', room_id)
-            room = Room(room_id)
-            self._rooms[room_id] = room
-            room.start()
-        room.clients.append(client)
-
-        if client.application.settings['debug']:
-            self.__send_test_message(room)
-
-    def del_client(self, room_id, client: 'ChatHandler'):
-        if room_id not in self._rooms:
-            return
-        room = self._rooms[room_id]
-        room.clients.remove(client)
-        if not room.clients:
-            logger.info('移除房间%d', room_id)
-            room.stop()
-            del self._rooms[room_id]
-
-    # 测试用
-    @staticmethod
-    def __send_test_message(room):
-        room.send_message(Command.ADD_TEXT, {
-            'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@24w_24h.webp',
-            'timestamp': time.time(),
-            'authorName': 'xfgryujk',
-            'authorType': 0,
-            'content': '我能吞下玻璃而不伤身体'
-        })
-        room.send_message(Command.ADD_TEXT, {
-            'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@24w_24h.webp',
-            'timestamp': time.time(),
-            'authorName': '主播',
-            'authorType': 3,
-            'content': "I can eat glass, it doesn't hurt me."
-        })
-        room.send_message(Command.ADD_VIP, {
-            'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@24w_24h.webp',
-            'authorName': 'xfgryujk',
-        })
-        room.send_message(Command.ADD_GIFT, {
-            'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@24w_24h.webp',
-            'authorName': 'xfgryujk',
-            'giftName': '礼花',
-            'giftNum': 1,
-            'totalCoin': 28000
-        })
-        room.send_message(Command.ADD_GIFT, {
-            'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@24w_24h.webp',
-            'authorName': 'xfgryujk',
-            'giftName': '节奏风暴',
-            'giftNum': 1,
-            'totalCoin': 100000
-        })
-        room.send_message(Command.ADD_GIFT, {
-            'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@24w_24h.webp',
-            'authorName': 'xfgryujk',
-            'giftName': '摩天大楼',
-            'giftNum': 1,
-            'totalCoin': 450000
-        })
-        room.send_message(Command.ADD_GIFT, {
-            'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@24w_24h.webp',
-            'authorName': 'xfgryujk',
-            'giftName': '小电视飞船',
-            'giftNum': 1,
-            'totalCoin': 1245000
-        })
-
-
-room_manager = RoomManager()
-
-
-# noinspection PyAbstractClass
-class ChatHandler(tornado.websocket.WebSocketHandler):
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        self.room_id = None
-
-    def open(self):
-        logger.info('Websocket连接 %s', self.request.remote_ip)
-
-    def on_message(self, message):
-        if self.room_id is not None:
-            return
-        body = json.loads(message)
-        if body['cmd'] == Command.JOIN_ROOM:
-            self.room_id = int(body['data']['roomId'])
-            logger.info('客户端%s加入房间%d', self.request.remote_ip, self.room_id)
-            room_manager.add_client(self.room_id, self)
-        else:
-            logger.warning('未知的命令: %s data: %s', body['cmd'], body['data'])
-
-    def on_close(self):
-        logger.info('Websocket断开 %s room: %s', self.request.remote_ip, self.room_id)
-        if self.room_id is not None:
-            room_manager.del_client(self.room_id, self)
-
-    # 跨域测试用
-    def check_origin(self, origin):
-        if self.application.settings['debug']:
-            return True
-        return super().check_origin(origin)

config.py

@@ -0,0 +1,66 @@
+# -*- coding: utf-8 -*-
+
+import configparser
+import logging
+import os
+from typing import *
+
+logger = logging.getLogger(__name__)
+
+CONFIG_PATH = os.path.join('data', 'config.ini')
+
+_config: Optional['AppConfig'] = None
+
+
+def init():
+    if reload():
+        return
+    logger.warning('Using default config')
+    global _config
+    _config = AppConfig()
+
+
+def reload():
+    config = AppConfig()
+    if not config.load(CONFIG_PATH):
+        return False
+    global _config
+    _config = config
+    return True
+
+
+def get_config():
+    return _config
+
+
+class AppConfig:
+    def __init__(self):
+        self.database_url = 'sqlite:///data/database.db'
+        self.enable_translate = True
+        self.allow_translate_rooms = {}
+        self.tornado_xheaders = False
+        self.loader_url = ''
+
+    def load(self, path):
+        try:
+            config = configparser.ConfigParser()
+            config.read(path)
+
+            app_section = config['app']
+            self.database_url = app_section['database_url']
+            self.enable_translate = app_section.getboolean('enable_translate')
+
+            allow_translate_rooms = app_section['allow_translate_rooms']
+            if allow_translate_rooms == '':
+                self.allow_translate_rooms = {}
+            else:
+                allow_translate_rooms = allow_translate_rooms.split(',')
+                self.allow_translate_rooms = set(map(lambda id_: int(id_.strip()), allow_translate_rooms))
+
+            self.tornado_xheaders = app_section.getboolean('tornado_xheaders')
+            self.loader_url = app_section['loader_url']
+
+        except (KeyError, ValueError):
+            logger.exception('Failed to load config:')
+            return False
+        return True

data/config.ini

@@ -0,0 +1,25 @@
+[app]
+# See https://docs.sqlalchemy.org/en/13/core/engines.html#database-urls
+database_url = sqlite:///data/database.db
+
+# Enable auto translate to Japanese
+enable_translate = true
+
+# Comma separated room IDs in which translation are not allowed. If empty, all are allowed
+# Example: allow_translate_rooms = 4895312,22347054,21693691
+allow_translate_rooms =
+
+# Set to true if you are using a reverse proxy server such as nginx
+tornado_xheaders = false
+
+# Use a loader so that you can run OBS before blivechat. If empty, no loader is used
+loader_url = https://xfgryujk.sinacloud.net/blivechat/loader.html
+
+
+# DON'T modify this section
+[DEFAULT]
+database_url = sqlite:///data/database.db
+enable_translate = true
+allow_translate_rooms =
+tornado_xheaders = false
+loader_url =

frontend/babel.config.js

@@ -1,5 +1,13 @@
 module.exports = {
   presets: [
     '@vue/app'
+  ],
+  plugins: [
+    [
+      'component', {
+        'libraryName': 'element-ui',
+        'styleLibraryName': 'theme-chalk'
+      }
+    ]
   ]
 }

frontend/package.json

@@ -8,15 +8,22 @@
     "lint": "vue-cli-service lint"
   },
   "dependencies": {
+    "axios": "^0.19.0",
     "core-js": "^2.6.5",
+    "downloadjs": "^1.4.7",
+    "element-ui": "^2.9.1",
+    "lodash": "^4.17.19",
+    "pako": "^1.0.11",
     "vue": "^2.6.10",
+    "vue-i18n": "^8.11.2",
     "vue-router": "^3.0.6"
   },
   "devDependencies": {
     "@vue/cli-plugin-babel": "^3.7.0",
     "@vue/cli-plugin-eslint": "^3.7.0",
-    "@vue/cli-service": "^3.7.0",
+    "@vue/cli-service": "^4.2.2",
     "babel-eslint": "^10.0.1",
+    "babel-plugin-component": "^1.1.1",
     "eslint": "^5.16.0",
     "eslint-plugin-vue": "^5.0.0",
     "vue-template-compiler": "^2.5.21"

frontend/src/api/chat/ChatClientDirect.js

@@ -0,0 +1,343 @@
+import axios from 'axios'
+import {inflate} from 'pako'
+
+import {getUuid4Hex} from '@/utils'
+import * as avatar from './avatar'
+
+const HEADER_SIZE = 16
+
+// const WS_BODY_PROTOCOL_VERSION_NORMAL = 0
+// const WS_BODY_PROTOCOL_VERSION_INT = 1 // 用于心跳包
+const WS_BODY_PROTOCOL_VERSION_DEFLATE = 2
+
+// const OP_HANDSHAKE = 0
+// const OP_HANDSHAKE_REPLY = 1
+const OP_HEARTBEAT = 2
+const OP_HEARTBEAT_REPLY = 3
+// const OP_SEND_MSG = 4
+const OP_SEND_MSG_REPLY = 5
+// const OP_DISCONNECT_REPLY = 6
+const OP_AUTH = 7
+const OP_AUTH_REPLY = 8
+// const OP_RAW = 9
+// const OP_PROTO_READY = 10
+// const OP_PROTO_FINISH = 11
+// const OP_CHANGE_ROOM = 12
+// const OP_CHANGE_ROOM_REPLY = 13
+// const OP_REGISTER = 14
+// const OP_REGISTER_REPLY = 15
+// const OP_UNREGISTER = 16
+// const OP_UNREGISTER_REPLY = 17
+// B站业务自定义OP
+// const MinBusinessOp = 1000
+// const MaxBusinessOp = 10000
+
+let textEncoder = new TextEncoder()
+let textDecoder = new TextDecoder()
+
+export default class ChatClientDirect {
+  constructor (roomId) {
+    // 调用initRoom后初始化，如果失败，使用这里的默认值
+    this.roomId = roomId
+    this.roomOwnerUid = 0
+    this.hostServerList = [
+      {host: "broadcastlv.chat.bilibili.com", port: 2243, wss_port: 443, ws_port: 2244}
+    ]
+
+    this.onAddText = null
+    this.onAddGift = null
+    this.onAddMember = null
+    this.onAddSuperChat = null
+    this.onDelSuperChat = null
+    this.onUpdateTranslation = null
+
+    this.websocket = null
+    this.retryCount = 0
+    this.isDestroying = false
+    this.heartbeatTimerId = null
+  }
+
+  async start () {
+    await this.initRoom()
+    this.wsConnect()
+  }
+
+  stop () {
+    this.isDestroying = true
+    if (this.websocket) {
+      this.websocket.close()
+    }
+  }
+
+  async initRoom () {
+    let res
+    try {
+      res = (await axios.get('/api/room_info', {params: {
+        roomId: this.roomId
+      }})).data
+    } catch {
+      return
+    }
+    this.roomId = res.roomId
+    this.roomOwnerUid = res.ownerUid
+    if (res.hostServerList.length !== 0) {
+      this.hostServerList = res.hostServerList
+    }
+  }
+
+  makePacket (data, operation) {
+    let body = textEncoder.encode(JSON.stringify(data))
+    let header = new ArrayBuffer(HEADER_SIZE)
+    let headerView = new DataView(header)
+    headerView.setUint32(0, HEADER_SIZE + body.byteLength)   // pack_len
+    headerView.setUint16(4, HEADER_SIZE)                     // raw_header_size
+    headerView.setUint16(6, 1)                               // ver
+    headerView.setUint32(8, operation)                       // operation
+    headerView.setUint32(12, 1)                              // seq_id
+    return new Blob([header, body])
+  }
+
+  sendAuth () {
+    let authParams = {
+      uid: 0,
+      roomid: this.roomId,
+      protover: 2,
+      platform: 'web',
+      clientver: '1.14.3',
+      type: 2
+    }
+    this.websocket.send(this.makePacket(authParams, OP_AUTH))
+  }
+
+  wsConnect () {
+    if (this.isDestroying) {
+      return
+    }
+    let hostServer = this.hostServerList[this.retryCount % this.hostServerList.length]
+    const url = `wss://${hostServer.host}:${hostServer.wss_port}/sub`
+    this.websocket = new WebSocket(url)
+    this.websocket.binaryType = 'arraybuffer'
+    this.websocket.onopen = this.onWsOpen.bind(this)
+    this.websocket.onclose = this.onWsClose.bind(this)
+    this.websocket.onmessage = this.onWsMessage.bind(this)
+    this.heartbeatTimerId = window.setInterval(this.sendHeartbeat.bind(this), 10 * 1000)
+  }
+
+  sendHeartbeat () {
+    this.websocket.send(this.makePacket({}, OP_HEARTBEAT))
+  }
+
+  onWsOpen () {
+    this.sendAuth()
+  }
+
+  onWsClose () {
+    this.websocket = null
+    if (this.heartbeatTimerId) {
+      window.clearInterval(this.heartbeatTimerId)
+      this.heartbeatTimerId = null
+    }
+    if (this.isDestroying) {
+      return
+    }
+    window.console.log(`掉线重连中${++this.retryCount}`)
+    window.setTimeout(this.wsConnect.bind(this), 1000)
+  }
+
+  onWsMessage (event) {
+    this.retryCount = 0
+    if (!(event.data instanceof ArrayBuffer)) {
+      window.console.warn('未知的websocket消息：', event.data)
+      return
+    }
+    let data = new Uint8Array(event.data)
+    this.handlerMessage(data)
+  }
+
+  handlerMessage (data) {
+    let offset = 0
+    while (offset < data.byteLength) {
+      let dataView = new DataView(data.buffer, offset)
+      let packLen = dataView.getUint32(0)
+      // let rawHeaderSize = dataView.getUint16(4)
+      let ver = dataView.getUint16(6)
+      let operation = dataView.getUint32(8)
+      // let seqId = dataView.getUint32(12)
+      
+      switch (operation) {
+      case OP_HEARTBEAT_REPLY: {
+        // 人气值没用
+        break
+      }
+      case OP_SEND_MSG_REPLY: {
+        let body = new Uint8Array(data.buffer, offset + HEADER_SIZE, packLen - HEADER_SIZE)
+        if (ver == WS_BODY_PROTOCOL_VERSION_DEFLATE) {
+          body = inflate(body)
+          this.handlerMessage(body)
+        } else {
+          try {
+            body = JSON.parse(textDecoder.decode(body))
+            this.handlerCommand(body)
+          } catch (e) {
+            window.console.warn('body:', body)
+            throw e
+          }
+        }
+        break
+      }
+      case OP_AUTH_REPLY: {
+        this.sendHeartbeat()
+        break
+      }
+      default: {
+        let body = new Uint8Array(data.buffer, offset + HEADER_SIZE, packLen - HEADER_SIZE)
+        window.console.warn('未知包类型：operation=', operation, body)
+        break
+      }
+      }
+
+      offset += packLen
+    }
+  }
+
+  handlerCommand (command) {
+    if (command instanceof Array) {
+      for (let oneCommand of command) {
+        this.handlerCommand(oneCommand)
+      }
+      return
+    }
+
+    let cmd = command.cmd || ''
+    let pos = cmd.indexOf(':')
+    if (pos != -1) {
+      cmd = cmd.substr(0, pos)
+    }
+    let handler = COMMAND_HANDLERS[cmd]
+    if (handler) {
+      handler.call(this, command)
+    }
+  }
+
+  async onReceiveDanmaku (command) {
+    if (!this.onAddText) {
+      return
+    }
+    let info = command.info
+
+    let roomId, medalLevel
+    if (info[3]) {
+      roomId = info[3][3]
+      medalLevel = info[3][0]
+    } else {
+      roomId = medalLevel = 0
+    }
+
+    let uid = info[2][0]
+    let isAdmin = info[2][2]
+    let privilegeType = info[7]
+    let authorType
+    if (uid === this.roomOwnerUid) {
+      authorType = 3
+    } else if (isAdmin) {
+      authorType = 2
+    } else if (privilegeType !== 0) {
+      authorType = 1
+    } else {
+      authorType = 0
+    }
+
+    let urank = info[2][5]
+    let data = {
+      avatarUrl: await avatar.getAvatarUrl(uid),
+      timestamp: info[0][4] / 1000,
+      authorName: info[2][1],
+      authorType: authorType,
+      content: info[1],
+      privilegeType: privilegeType,
+      isGiftDanmaku: !!info[0][9],
+      authorLevel: info[4][0],
+      isNewbie: urank < 10000,
+      isMobileVerified: !!info[2][6],
+      medalLevel: roomId === this.roomId ? medalLevel : 0,
+      id: getUuid4Hex(),
+      translation: ''
+    }
+    this.onAddText(data)
+  }
+
+  onReceiveGift (command) {
+    if (!this.onAddGift) {
+      return
+    }
+    let data = command.data
+    if (data.coin_type !== 'gold') { // 丢人
+      return
+    }
+
+    data = {
+      id: getUuid4Hex(),
+      avatarUrl: avatar.processAvatarUrl(data.face),
+      timestamp: data.timestamp,
+      authorName: data.uname,
+      totalCoin: data.total_coin,
+      giftName: data.giftName,
+      num: data.num
+    }
+    this.onAddGift(data)
+  }
+
+  async onBuyGuard (command) {
+    if (!this.onAddMember) {
+      return
+    }
+
+    let data = command.data
+    data = {
+      id: getUuid4Hex(),
+      avatarUrl: await avatar.getAvatarUrl(data.uid),
+      timestamp: data.start_time,
+      authorName: data.username,
+      privilegeType: data.guard_level
+    }
+    this.onAddMember(data)
+  }
+
+  onSuperChat (command) {
+    if (!this.onAddSuperChat) {
+      return
+    }
+
+    let data = command.data
+    data = {
+      id: data.id.toString(),
+      avatarUrl: avatar.processAvatarUrl(data.user_info.face),
+      timestamp: data.start_time,
+      authorName: data.user_info.uname,
+      price: data.price,
+      content: data.message,
+      translation: ''
+    }
+    this.onAddSuperChat(data)
+  }
+
+  onSuperChatDelete (command) {
+    if (!this.onDelSuperChat) {
+      return
+    }
+
+    let ids = []
+    for (let id of command.data.ids) {
+      ids.push(id.toString())
+    }
+    this.onDelSuperChat({ids})
+  }
+}
+
+const COMMAND_HANDLERS = {
+  DANMU_MSG: ChatClientDirect.prototype.onReceiveDanmaku,
+  SEND_GIFT: ChatClientDirect.prototype.onReceiveGift,
+  GUARD_BUY: ChatClientDirect.prototype.onBuyGuard,
+  SUPER_CHAT_MESSAGE: ChatClientDirect.prototype.onSuperChat,
+  SUPER_CHAT_MESSAGE_DELETE: ChatClientDirect.prototype.onSuperChatDelete
+}

frontend/src/api/chat/ChatClientRelay.js

@@ -0,0 +1,148 @@
+const COMMAND_HEARTBEAT = 0
+const COMMAND_JOIN_ROOM = 1
+const COMMAND_ADD_TEXT = 2
+const COMMAND_ADD_GIFT = 3
+const COMMAND_ADD_MEMBER = 4
+const COMMAND_ADD_SUPER_CHAT = 5
+const COMMAND_DEL_SUPER_CHAT = 6
+const COMMAND_UPDATE_TRANSLATION = 7
+
+export default class ChatClientRelay {
+  constructor (roomId, autoTranslate) {
+    this.roomId = roomId
+    this.autoTranslate = autoTranslate
+
+    this.onAddText = null
+    this.onAddGift = null
+    this.onAddMember = null
+    this.onAddSuperChat = null
+    this.onDelSuperChat = null
+    this.onUpdateTranslation = null
+
+    this.websocket = null
+    this.retryCount = 0
+    this.isDestroying = false
+    this.heartbeatTimerId = null
+  }
+
+  start () {
+    this.wsConnect()
+  }
+
+  stop () {
+    this.isDestroying = true
+    if (this.websocket) {
+      this.websocket.close()
+    }
+  }
+
+  wsConnect () {
+    if (this.isDestroying) {
+      return
+    }
+    const protocol = window.location.protocol === 'https:' ? 'wss' : 'ws'
+    // 开发时使用localhost:12450
+    const host = process.env.NODE_ENV === 'development' ? 'localhost:12450' : window.location.host
+    const url = `${protocol}://${host}/api/chat`
+    this.websocket = new WebSocket(url)
+    this.websocket.onopen = this.onWsOpen.bind(this)
+    this.websocket.onclose = this.onWsClose.bind(this)
+    this.websocket.onmessage = this.onWsMessage.bind(this)
+    this.heartbeatTimerId = window.setInterval(this.sendHeartbeat.bind(this), 10 * 1000)
+  }
+
+  sendHeartbeat () {
+    this.websocket.send(JSON.stringify({
+      cmd: COMMAND_HEARTBEAT
+    }))
+  }
+
+  onWsOpen () {
+    this.retryCount = 0
+    this.websocket.send(JSON.stringify({
+      cmd: COMMAND_JOIN_ROOM,
+      data: {
+        roomId: this.roomId,
+        config: {
+          autoTranslate: this.autoTranslate
+        }
+      }
+    }))
+  }
+
+  onWsClose () {
+    this.websocket = null
+    if (this.heartbeatTimerId) {
+      window.clearInterval(this.heartbeatTimerId)
+      this.heartbeatTimerId = null
+    }
+    if (this.isDestroying) {
+      return
+    }
+    window.console.log(`掉线重连中${++this.retryCount}`)
+    window.setTimeout(this.wsConnect.bind(this), 1000)
+  }
+
+  onWsMessage (event) {
+    let {cmd, data} = JSON.parse(event.data)
+    switch (cmd) {
+    case COMMAND_ADD_TEXT: {
+      if (!this.onAddText) {
+        break
+      }
+      data = {
+        avatarUrl: data[0],
+        timestamp: data[1],
+        authorName: data[2],
+        authorType: data[3],
+        content: data[4],
+        privilegeType: data[5],
+        isGiftDanmaku: !!data[6],
+        authorLevel: data[7],
+        isNewbie: !!data[8],
+        isMobileVerified: !!data[9],
+        medalLevel: data[10],
+        id: data[11],
+        translation: data[12]
+      }
+      this.onAddText(data)
+      break
+    }
+    case COMMAND_ADD_GIFT: {
+      if (this.onAddGift) {
+        this.onAddGift(data)
+      }
+      break
+    }
+    case COMMAND_ADD_MEMBER: {
+      if (this.onAddMember) {
+        this.onAddMember(data)
+      }
+      break
+    }
+    case COMMAND_ADD_SUPER_CHAT: {
+      if (this.onAddSuperChat) {
+        this.onAddSuperChat(data)
+      }
+      break
+    }
+    case COMMAND_DEL_SUPER_CHAT: {
+      if (this.onDelSuperChat) {
+        this.onDelSuperChat(data)
+      }
+      break
+    }
+    case COMMAND_UPDATE_TRANSLATION: {
+      if (!this.onUpdateTranslation) {
+        break
+      }
+      data = {
+        id: data[0],
+        translation: data[1]
+      }
+      this.onUpdateTranslation(data)
+      break
+    }
+    }
+  }
+}

frontend/src/api/chat/avatar.js

@@ -0,0 +1,28 @@
+import axios from 'axios'
+
+export const DEFAULT_AVATAR_URL = '//static.hdslb.com/images/member/noface.gif'
+
+export function processAvatarUrl (avatarUrl) {
+  // 去掉协议，兼容HTTP、HTTPS
+  let m = avatarUrl.match(/(?:https?:)?(.*)/)
+  if (m) {
+    avatarUrl = m[1]
+  }
+  // 缩小图片加快传输
+  if (!avatarUrl.endsWith('noface.gif')) {
+    avatarUrl += '@48w_48h'
+  }
+  return avatarUrl
+}
+
+export async function getAvatarUrl (uid) {
+  let res
+  try {
+    res = (await axios.get('/api/avatar_url', {params: {
+      uid: uid
+    }})).data
+  } catch {
+    return DEFAULT_AVATAR_URL
+  }
+  return res.avatarUrl
+}

frontend/src/api/chatConfig.js

@@ -0,0 +1,34 @@
+import {mergeConfig} from '@/utils'
+
+export const DEFAULT_CONFIG = {
+  minGiftPrice: 7, // $1
+  showDanmaku: true,
+  showGift: true,
+  showGiftName: false,
+  mergeSimilarDanmaku: false,
+  mergeGift: true,
+  maxNumber: 60,
+
+  blockGiftDanmaku: true,
+  blockLevel: 0,
+  blockNewbie: true,
+  blockNotMobileVerified: true,
+  blockKeywords: '',
+  blockUsers: '',
+  blockMedalLevel: 0,
+
+  relayMessagesByServer: false,
+  autoTranslate: false
+}
+
+export function setLocalConfig (config) {
+  config = mergeConfig(config, DEFAULT_CONFIG)
+  window.localStorage.config = JSON.stringify(config)
+}
+
+export function getLocalConfig () {
+  if (!window.localStorage.config) {
+    return DEFAULT_CONFIG
+  }
+  return mergeConfig(JSON.parse(window.localStorage.config), DEFAULT_CONFIG)
+}

frontend/src/assets/css/youtube/yt-html.css

@@ -0,0 +1,362 @@
+html:not(.style-scope) {
+  --yt-live-chat-background-color: hsl(0, 0%, 100%);
+  --yt-live-chat-action-panel-background-color: hsla(0, 0%, 93.3%, .4);
+  --yt-live-chat-action-panel-background-color-transparent: hsla(0, 0%, 97%, .8);
+  --yt-live-chat-mode-change-background-color: hsla(0, 0%, 93.3%, .4);
+  --yt-live-chat-primary-text-color: hsl(0, 0%, 6.7%);
+  --yt-live-chat-secondary-text-color: hsla(0, 0%, 6.7%, .6);
+  --yt-live-chat-tertiary-text-color: hsla(0, 0%, 6.7%, .4);
+  --yt-live-chat-text-input-field-inactive-underline-color: #b8b8b8;
+  --yt-live-chat-text-input-field-placeholder-color: hsla(0, 0%, 6.7%, .6);
+  --yt-live-chat-icon-button-color: hsla(0, 0%, 6.7%, .4);
+  --yt-live-chat-enabled-send-button-color: #4285f4;
+  --yt-live-chat-disabled-icon-button-color: hsla(0, 0%, 6.7%, .2);
+  --yt-live-chat-picker-button-color: hsla(0, 0%, 6.7%, .4);
+  --yt-live-chat-picker-button-active-color: hsla(0, 0%, 6.7%, .8);
+  --yt-live-chat-picker-button-disabled-color: var(--yt-live-chat-disabled-icon-button-color);
+  --yt-live-chat-picker-button-hover-color: hsla(0, 0%, 6.7%, .6);
+  --yt-live-chat-mention-background-color: #ff5722;
+  --yt-live-chat-mention-text-color: hsl(0, 0%, 100%);
+  --yt-live-chat-deleted-message-color: rgba(0, 0, 0, .5);
+  --yt-live-chat-deleted-message-bar-color: rgba(11, 11, 11, .2);
+  --yt-live-chat-disabled-button-background-color: hsl(0, 0%, 93.3%);
+  --yt-live-chat-disabled-button-text-color: hsla(0, 0%, 6.7%, .4);
+  --yt-live-chat-sub-panel-background-color: hsl(0, 0%, 93.3%);
+  --yt-live-chat-sub-panel-background-color-transparent: hsla(0, 0%, 93%, .7);
+  --yt-live-chat-header-background-color: hsla(0, 0%, 93.3%, .4);
+  --yt-live-chat-header-button-color: hsl(0, 0%, 6.7%);
+  --yt-live-chat-error-message-color: hsl(10, 51%, 49%);
+  --yt-live-chat-reconnect-message-color: hsla(0, 0%, 7%, 0.2);
+  --yt-live-chat-moderator-color: hsl(225, 84%, 66%);
+  --yt-live-chat-owner-color: hsl(40, 76%, 55%);
+  --yt-live-chat-author-chip-owner-text-color: rgba(0,0,0,0.87);
+  --yt-live-chat-author-chip-verified-background-color: #CCCCCC;
+  --yt-live-chat-author-chip-verified-text-color: #606060;
+  --yt-live-chat-message-highlight-background-color: #f8f8f8;
+  --yt-live-chat-sponsor-color: #107516;
+  --yt-live-chat-overlay-color: hsla(0, 0%, 0%, 0.6);
+  --yt-live-chat-dialog-background-color: hsl(0, 0%, 100%);
+  --yt-live-chat-dialog-text-color: hsla(0, 0%, 6.7%, .6);
+  --yt-live-chat-poll-choice-text-color: var(--yt-spec-text-secondary);
+  --yt-live-chat-poll-choice-border-color: var(--yt-spec-10-percent-layer);
+  --yt-live-chat-poll-choice-vote-bar-background-color: hsla(0, 0%, 93.3%, .8);
+  --yt-live-chat-poll-choice-vote-bar-background-color-selected: #F2F8FF;
+  --yt-live-chat-poll-choice-color-selected: #065FD4;
+  --yt-live-chat-moderation-mode-hover-background-color: hsla(0, 0%, 6.7%, .2);
+  --yt-live-chat-additional-inline-action-button-color: hsl(0, 0%, 100%);
+  --yt-live-chat-additional-inline-action-button-background-color: hsla(0, 0%, 26%, 0.8);
+  --yt-live-chat-additional-inline-action-button-background-color-hover: hsla(0, 0%, 26%, 1.0);
+  --yt-formatted-string-emoji-size: 24px;
+  --yt-live-chat-emoji-size: 24px;
+  --yt-live-chat-text-input-field-suggestion-background-color: hsl(0, 0%, 100%);
+  --yt-live-chat-text-input-field-suggestion-background-color-hover: #eee;
+  --yt-live-chat-text-input-field-suggestion-text-color: #666;
+  --yt-live-chat-text-input-field-suggestion-text-color-hover: #333;
+  --yt-live-chat-ticker-arrow-background: hsl(0, 0%, 97.3%);
+  --yt-emoji-picker-category-background-color: var(--yt-live-chat-action-panel-background-color-transparent);
+  --yt-emoji-picker-category-color: var(--yt-live-chat-secondary-text-color);
+  --yt-emoji-picker-category-button-color: var(--yt-live-chat-picker-button-color);
+  --yt-emoji-picker-search-background-color: hsla(0, 0%, 100%, .6);
+  --yt-emoji-picker-search-color: hsla(0, 0%, 6.7%, .8);
+  --yt-emoji-picker-search-placeholder-color: hsla(0, 0%, 6.7%, .6);
+  --yt-live-chat-slider-active-color: #2196f3;
+  --yt-live-chat-slider-container-color: #c8c8c8;
+  --yt-live-chat-slider-markers-color: #505050;
+  --yt-live-chat-toast-background-color: hsl(0, 0%, 20%);
+  --yt-live-chat-toast-text-color: hsl(0, 0%, 100%);
+  --yt-live-chat-automod-button-background-color: hsl(0, 0%, 93.3%);
+  --yt-live-chat-automod-button-background-color-hover: hsla(0, 0%, 6.7%, .2);
+  --yt-live-chat-countdown-opacity: 0.3;
+  --yt-live-chat-shimmer-background-color: rgba(136, 136, 136, 0.2);
+  --yt-live-chat-shimmer-linear-gradient: linear-gradient(0deg, rgba(255, 255, 255, 0) 40%, rgba(255, 255, 255, 0.5) 50%, rgba(255, 255, 255, 0) 65%);
+  --yt-live-chat-vem-background-color: hsl(0, 0%, 93.3%);
+  --yt-live-chat-upsell-dialog-renderer-button-padding: 10px 16px;
+  --yt-live-chat-product-picker-icon-color: rgba(17, 17, 17, 0.6);
+  --yt-live-chat-product-picker-hover-color: rgba(17, 17, 16, 0.1);
+  --yt-live-chat-product-picker-disabled-icon-color: rgba(17, 17, 17, 0.4);
+  --yt-pdg-paid-stickers-tab-selection-bar-color: #065FD4;
+  --yt-pdg-paid-stickers-author-name-font-size: 13px;
+  --yt-pdg-paid-stickers-margin-left: 38px;
+}
+
+html:not(.style-scope) {
+  --layout_-_display: flex;
+  ;
+
+  --layout-inline_-_display: inline-flex;
+  ;
+
+  --layout-horizontal_-_display: var(--layout_-_display);
+  --layout-horizontal_-_-ms-flex-direction: row;
+  --layout-horizontal_-_-webkit-flex-direction: row;
+  --layout-horizontal_-_flex-direction: row;
+  ;
+
+  --layout-horizontal-reverse_-_display: var(--layout_-_display);
+  --layout-horizontal-reverse_-_-ms-flex-direction: row-reverse;
+  --layout-horizontal-reverse_-_-webkit-flex-direction: row-reverse;
+  --layout-horizontal-reverse_-_flex-direction: row-reverse;
+  ;
+
+  --layout-vertical_-_display: var(--layout_-_display);
+  --layout-vertical_-_-ms-flex-direction: column;
+  --layout-vertical_-_-webkit-flex-direction: column;
+  --layout-vertical_-_flex-direction: column;
+  ;
+
+  --layout-vertical-reverse_-_display: var(--layout_-_display);
+  --layout-vertical-reverse_-_-ms-flex-direction: column-reverse;
+  --layout-vertical-reverse_-_-webkit-flex-direction: column-reverse;
+  --layout-vertical-reverse_-_flex-direction: column-reverse;
+  ;
+
+  --layout-wrap_-_-ms-flex-wrap: wrap;
+  --layout-wrap_-_-webkit-flex-wrap: wrap;
+  --layout-wrap_-_flex-wrap: wrap;
+  ;
+
+  --layout-wrap-reverse_-_-ms-flex-wrap: wrap-reverse;
+  --layout-wrap-reverse_-_-webkit-flex-wrap: wrap-reverse;
+  --layout-wrap-reverse_-_flex-wrap: wrap-reverse;
+  ;
+
+  --layout-flex-auto_-_-ms-flex: 1 1 auto;
+  --layout-flex-auto_-_-webkit-flex: 1 1 auto;
+  --layout-flex-auto_-_flex: 1 1 auto;
+  ;
+
+  --layout-flex-none_-_-ms-flex: none;
+  --layout-flex-none_-_-webkit-flex: none;
+  --layout-flex-none_-_flex: none;
+  ;
+
+  --layout-flex_-_-ms-flex: 1 1 0.000000001px;
+  --layout-flex_-_-webkit-flex: 1;
+  --layout-flex_-_flex: 1;
+  --layout-flex_-_-webkit-flex-basis: 0.000000001px;
+  --layout-flex_-_flex-basis: 0.000000001px;
+  ;
+
+  --layout-flex-2_-_-ms-flex: 2;
+  --layout-flex-2_-_-webkit-flex: 2;
+  --layout-flex-2_-_flex: 2;
+  ;
+
+  --layout-flex-3_-_-ms-flex: 3;
+  --layout-flex-3_-_-webkit-flex: 3;
+  --layout-flex-3_-_flex: 3;
+  ;
+
+  --layout-flex-4_-_-ms-flex: 4;
+  --layout-flex-4_-_-webkit-flex: 4;
+  --layout-flex-4_-_flex: 4;
+  ;
+
+  --layout-flex-5_-_-ms-flex: 5;
+  --layout-flex-5_-_-webkit-flex: 5;
+  --layout-flex-5_-_flex: 5;
+  ;
+
+  --layout-flex-6_-_-ms-flex: 6;
+  --layout-flex-6_-_-webkit-flex: 6;
+  --layout-flex-6_-_flex: 6;
+  ;
+
+  --layout-flex-7_-_-ms-flex: 7;
+  --layout-flex-7_-_-webkit-flex: 7;
+  --layout-flex-7_-_flex: 7;
+  ;
+
+  --layout-flex-8_-_-ms-flex: 8;
+  --layout-flex-8_-_-webkit-flex: 8;
+  --layout-flex-8_-_flex: 8;
+  ;
+
+  --layout-flex-9_-_-ms-flex: 9;
+  --layout-flex-9_-_-webkit-flex: 9;
+  --layout-flex-9_-_flex: 9;
+  ;
+
+  --layout-flex-10_-_-ms-flex: 10;
+  --layout-flex-10_-_-webkit-flex: 10;
+  --layout-flex-10_-_flex: 10;
+  ;
+
+  --layout-flex-11_-_-ms-flex: 11;
+  --layout-flex-11_-_-webkit-flex: 11;
+  --layout-flex-11_-_flex: 11;
+  ;
+
+  --layout-flex-12_-_-ms-flex: 12;
+  --layout-flex-12_-_-webkit-flex: 12;
+  --layout-flex-12_-_flex: 12;
+  ;
+
+
+
+  --layout-start_-_-ms-flex-align: start;
+  --layout-start_-_-webkit-align-items: flex-start;
+  --layout-start_-_align-items: flex-start;
+  ;
+
+  --layout-center_-_-ms-flex-align: center;
+  --layout-center_-_-webkit-align-items: center;
+  --layout-center_-_align-items: center;
+  ;
+
+  --layout-end_-_-ms-flex-align: end;
+  --layout-end_-_-webkit-align-items: flex-end;
+  --layout-end_-_align-items: flex-end;
+  ;
+
+  --layout-baseline_-_-ms-flex-align: baseline;
+  --layout-baseline_-_-webkit-align-items: baseline;
+  --layout-baseline_-_align-items: baseline;
+  ;
+
+
+
+  --layout-start-justified_-_-ms-flex-pack: start;
+  --layout-start-justified_-_-webkit-justify-content: flex-start;
+  --layout-start-justified_-_justify-content: flex-start;
+  ;
+
+  --layout-center-justified_-_-ms-flex-pack: center;
+  --layout-center-justified_-_-webkit-justify-content: center;
+  --layout-center-justified_-_justify-content: center;
+  ;
+
+  --layout-end-justified_-_-ms-flex-pack: end;
+  --layout-end-justified_-_-webkit-justify-content: flex-end;
+  --layout-end-justified_-_justify-content: flex-end;
+  ;
+
+  --layout-around-justified_-_-ms-flex-pack: distribute;
+  --layout-around-justified_-_-webkit-justify-content: space-around;
+  --layout-around-justified_-_justify-content: space-around;
+  ;
+
+  --layout-justified_-_-ms-flex-pack: justify;
+  --layout-justified_-_-webkit-justify-content: space-between;
+  --layout-justified_-_justify-content: space-between;
+  ;
+
+  --layout-center-center_-_-ms-flex-align: var(--layout-center_-_-ms-flex-align);
+  --layout-center-center_-_-webkit-align-items: var(--layout-center_-_-webkit-align-items);
+  --layout-center-center_-_align-items: var(--layout-center_-_align-items);
+  --layout-center-center_-_-ms-flex-pack: var(--layout-center-justified_-_-ms-flex-pack);
+  --layout-center-center_-_-webkit-justify-content: var(--layout-center-justified_-_-webkit-justify-content);
+  --layout-center-center_-_justify-content: var(--layout-center-justified_-_justify-content);
+  ;
+
+
+
+  --layout-self-start_-_-ms-align-self: flex-start;
+  --layout-self-start_-_-webkit-align-self: flex-start;
+  --layout-self-start_-_align-self: flex-start;
+  ;
+
+  --layout-self-center_-_-ms-align-self: center;
+  --layout-self-center_-_-webkit-align-self: center;
+  --layout-self-center_-_align-self: center;
+  ;
+
+  --layout-self-end_-_-ms-align-self: flex-end;
+  --layout-self-end_-_-webkit-align-self: flex-end;
+  --layout-self-end_-_align-self: flex-end;
+  ;
+
+  --layout-self-stretch_-_-ms-align-self: stretch;
+  --layout-self-stretch_-_-webkit-align-self: stretch;
+  --layout-self-stretch_-_align-self: stretch;
+  ;
+
+  --layout-self-baseline_-_-ms-align-self: baseline;
+  --layout-self-baseline_-_-webkit-align-self: baseline;
+  --layout-self-baseline_-_align-self: baseline;
+  ;
+
+
+
+  --layout-start-aligned_-_-ms-flex-line-pack: start;
+  --layout-start-aligned_-_-ms-align-content: flex-start;
+  --layout-start-aligned_-_-webkit-align-content: flex-start;
+  --layout-start-aligned_-_align-content: flex-start;
+  ;
+
+  --layout-end-aligned_-_-ms-flex-line-pack: end;
+  --layout-end-aligned_-_-ms-align-content: flex-end;
+  --layout-end-aligned_-_-webkit-align-content: flex-end;
+  --layout-end-aligned_-_align-content: flex-end;
+  ;
+
+  --layout-center-aligned_-_-ms-flex-line-pack: center;
+  --layout-center-aligned_-_-ms-align-content: center;
+  --layout-center-aligned_-_-webkit-align-content: center;
+  --layout-center-aligned_-_align-content: center;
+  ;
+
+  --layout-between-aligned_-_-ms-flex-line-pack: justify;
+  --layout-between-aligned_-_-ms-align-content: space-between;
+  --layout-between-aligned_-_-webkit-align-content: space-between;
+  --layout-between-aligned_-_align-content: space-between;
+  ;
+
+  --layout-around-aligned_-_-ms-flex-line-pack: distribute;
+  --layout-around-aligned_-_-ms-align-content: space-around;
+  --layout-around-aligned_-_-webkit-align-content: space-around;
+  --layout-around-aligned_-_align-content: space-around;
+  ;
+
+
+
+  --layout-block_-_display: block;
+  ;
+
+  --layout-invisible_-_visibility: hidden !important;
+  ;
+
+  --layout-relative_-_position: relative;
+  ;
+
+  --layout-fit_-_position: absolute;
+  --layout-fit_-_top: 0;
+  --layout-fit_-_right: 0;
+  --layout-fit_-_bottom: 0;
+  --layout-fit_-_left: 0;
+  ;
+
+  --layout-scroll_-_-webkit-overflow-scrolling: touch;
+  --layout-scroll_-_overflow: auto;
+  ;
+
+  --layout-fullbleed_-_margin: 0;
+  --layout-fullbleed_-_height: 100vh;
+  ;
+
+
+
+  --layout-fixed-top_-_position: fixed;
+  --layout-fixed-top_-_top: 0;
+  --layout-fixed-top_-_left: 0;
+  --layout-fixed-top_-_right: 0;
+  ;
+
+  --layout-fixed-right_-_position: fixed;
+  --layout-fixed-right_-_top: 0;
+  --layout-fixed-right_-_right: 0;
+  --layout-fixed-right_-_bottom: 0;
+  ;
+
+  --layout-fixed-bottom_-_position: fixed;
+  --layout-fixed-bottom_-_right: 0;
+  --layout-fixed-bottom_-_bottom: 0;
+  --layout-fixed-bottom_-_left: 0;
+  ;
+
+  --layout-fixed-left_-_position: fixed;
+  --layout-fixed-left_-_top: 0;
+  --layout-fixed-left_-_bottom: 0;
+  --layout-fixed-left_-_left: 0;
+  ;
+}

frontend/src/assets/css/youtube/yt-icon.css

@@ -0,0 +1,30 @@
+canvas.yt-icon, caption.yt-icon, center.yt-icon, cite.yt-icon, code.yt-icon, dd.yt-icon, del.yt-icon, dfn.yt-icon, div.yt-icon, dl.yt-icon, dt.yt-icon, em.yt-icon, embed.yt-icon, fieldset.yt-icon, font.yt-icon, form.yt-icon, h1.yt-icon, h2.yt-icon, h3.yt-icon, h4.yt-icon, h5.yt-icon, h6.yt-icon, hr.yt-icon, i.yt-icon, iframe.yt-icon, img.yt-icon, ins.yt-icon, kbd.yt-icon, label.yt-icon, legend.yt-icon, li.yt-icon, menu.yt-icon, object.yt-icon, ol.yt-icon, p.yt-icon, pre.yt-icon, q.yt-icon, s.yt-icon, samp.yt-icon, small.yt-icon, span.yt-icon, strike.yt-icon, strong.yt-icon, sub.yt-icon, sup.yt-icon, table.yt-icon, tbody.yt-icon, td.yt-icon, tfoot.yt-icon, th.yt-icon, thead.yt-icon, tr.yt-icon, tt.yt-icon, u.yt-icon, ul.yt-icon, var.yt-icon {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-icon[hidden] {
+  display: none !important;
+}
+
+yt-icon, .yt-icon-container.yt-icon {
+  display: inline-flex;
+  -ms-flex-align: center;
+  -webkit-align-items: center;
+  align-items: center;
+  -ms-flex-pack: center;
+  -webkit-justify-content: center;
+  justify-content: center;
+  position: relative;
+  vertical-align: middle;
+  fill: currentcolor;
+  stroke: none;
+  width: var(--iron-icon-width, 24px);
+  height: var(--iron-icon-height, 24px);
+}
+
+yt-icon.external-container {
+  display: none !important;
+}

frontend/src/assets/css/youtube/yt-img-shadow.css

@@ -0,0 +1,68 @@
+canvas.yt-img-shadow, caption.yt-img-shadow, center.yt-img-shadow, cite.yt-img-shadow, code.yt-img-shadow, dd.yt-img-shadow, del.yt-img-shadow, dfn.yt-img-shadow, div.yt-img-shadow, dl.yt-img-shadow, dt.yt-img-shadow, em.yt-img-shadow, embed.yt-img-shadow, fieldset.yt-img-shadow, font.yt-img-shadow, form.yt-img-shadow, h1.yt-img-shadow, h2.yt-img-shadow, h3.yt-img-shadow, h4.yt-img-shadow, h5.yt-img-shadow, h6.yt-img-shadow, hr.yt-img-shadow, i.yt-img-shadow, iframe.yt-img-shadow, img.yt-img-shadow, ins.yt-img-shadow, kbd.yt-img-shadow, label.yt-img-shadow, legend.yt-img-shadow, li.yt-img-shadow, menu.yt-img-shadow, object.yt-img-shadow, ol.yt-img-shadow, p.yt-img-shadow, pre.yt-img-shadow, q.yt-img-shadow, s.yt-img-shadow, samp.yt-img-shadow, small.yt-img-shadow, span.yt-img-shadow, strike.yt-img-shadow, strong.yt-img-shadow, sub.yt-img-shadow, sup.yt-img-shadow, table.yt-img-shadow, tbody.yt-img-shadow, td.yt-img-shadow, tfoot.yt-img-shadow, th.yt-img-shadow, thead.yt-img-shadow, tr.yt-img-shadow, tt.yt-img-shadow, u.yt-img-shadow, ul.yt-img-shadow, var.yt-img-shadow {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-img-shadow[hidden] {
+  display: none !important;
+}
+
+yt-img-shadow {
+  display: inline-block;
+  opacity: 0;
+  transition: opacity 0.2s;
+  -ms-flex: none;
+  -webkit-flex: none;
+  flex: none;
+}
+
+yt-img-shadow.no-transition {
+  opacity: 1;
+  transition: none;
+}
+
+yt-img-shadow.with-placeholder {
+  background-color: transparent;
+  min-height: unset;
+  min-width: unset;
+}
+
+yt-img-shadow[loaded] {
+  opacity: 1;
+}
+
+yt-img-shadow.empty img.yt-img-shadow {
+  visibility: hidden;
+}
+
+yt-img-shadow[object-fit="FILL"] img.yt-img-shadow, yt-img-shadow[fit] img.yt-img-shadow {
+  width: 100%;
+  height: 100%;
+}
+
+yt-img-shadow[object-fit="COVER"] img.yt-img-shadow {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+yt-img-shadow[object-fit="CONTAIN"] img.yt-img-shadow {
+  width: 100%;
+  height: 100%;
+  object-fit: contain;
+}
+
+yt-img-shadow[object-position="LEFT"] img.yt-img-shadow {
+  object-position: left;
+}
+
+img.yt-img-shadow {
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
+  max-height: none;
+  max-width: 100%;
+  border-radius: none;
+}

frontend/src/assets/css/youtube/yt-live-chat-author-badge-renderer.css

@@ -0,0 +1,36 @@
+canvas.yt-live-chat-author-badge-renderer, caption.yt-live-chat-author-badge-renderer, center.yt-live-chat-author-badge-renderer, cite.yt-live-chat-author-badge-renderer, code.yt-live-chat-author-badge-renderer, dd.yt-live-chat-author-badge-renderer, del.yt-live-chat-author-badge-renderer, dfn.yt-live-chat-author-badge-renderer, div.yt-live-chat-author-badge-renderer, dl.yt-live-chat-author-badge-renderer, dt.yt-live-chat-author-badge-renderer, em.yt-live-chat-author-badge-renderer, embed.yt-live-chat-author-badge-renderer, fieldset.yt-live-chat-author-badge-renderer, font.yt-live-chat-author-badge-renderer, form.yt-live-chat-author-badge-renderer, h1.yt-live-chat-author-badge-renderer, h2.yt-live-chat-author-badge-renderer, h3.yt-live-chat-author-badge-renderer, h4.yt-live-chat-author-badge-renderer, h5.yt-live-chat-author-badge-renderer, h6.yt-live-chat-author-badge-renderer, hr.yt-live-chat-author-badge-renderer, i.yt-live-chat-author-badge-renderer, iframe.yt-live-chat-author-badge-renderer, img.yt-live-chat-author-badge-renderer, ins.yt-live-chat-author-badge-renderer, kbd.yt-live-chat-author-badge-renderer, label.yt-live-chat-author-badge-renderer, legend.yt-live-chat-author-badge-renderer, li.yt-live-chat-author-badge-renderer, menu.yt-live-chat-author-badge-renderer, object.yt-live-chat-author-badge-renderer, ol.yt-live-chat-author-badge-renderer, p.yt-live-chat-author-badge-renderer, pre.yt-live-chat-author-badge-renderer, q.yt-live-chat-author-badge-renderer, s.yt-live-chat-author-badge-renderer, samp.yt-live-chat-author-badge-renderer, small.yt-live-chat-author-badge-renderer, span.yt-live-chat-author-badge-renderer, strike.yt-live-chat-author-badge-renderer, strong.yt-live-chat-author-badge-renderer, sub.yt-live-chat-author-badge-renderer, sup.yt-live-chat-author-badge-renderer, table.yt-live-chat-author-badge-renderer, tbody.yt-live-chat-author-badge-renderer, td.yt-live-chat-author-badge-renderer, tfoot.yt-live-chat-author-badge-renderer, th.yt-live-chat-author-badge-renderer, thead.yt-live-chat-author-badge-renderer, tr.yt-live-chat-author-badge-renderer, tt.yt-live-chat-author-badge-renderer, u.yt-live-chat-author-badge-renderer, ul.yt-live-chat-author-badge-renderer, var.yt-live-chat-author-badge-renderer {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-author-badge-renderer[hidden] {
+  display: none !important;
+}
+
+yt-live-chat-author-badge-renderer {
+  display: inline-block;
+}
+
+yt-live-chat-author-badge-renderer[type='moderator'] {
+  color: var(--yt-live-chat-moderator-color, #5e84f1);
+}
+
+yt-live-chat-author-badge-renderer[type='owner'] {
+  color: var(--yt-live-chat-owner-color, #ffd600);
+}
+
+yt-live-chat-author-badge-renderer[type='member'] {
+  color: var(--yt-live-chat-sponsor-color, #107516);
+}
+
+yt-live-chat-author-badge-renderer[type='verified'] {
+  color: #999;
+}
+
+img.yt-live-chat-author-badge-renderer, yt-icon.yt-live-chat-author-badge-renderer {
+  display: block;
+  width: 16px;
+  height: 16px;
+}

frontend/src/assets/css/youtube/yt-live-chat-author-chip.css

@@ -0,0 +1,64 @@
+canvas.yt-live-chat-author-chip, caption.yt-live-chat-author-chip, center.yt-live-chat-author-chip, cite.yt-live-chat-author-chip, code.yt-live-chat-author-chip, dd.yt-live-chat-author-chip, del.yt-live-chat-author-chip, dfn.yt-live-chat-author-chip, div.yt-live-chat-author-chip, dl.yt-live-chat-author-chip, dt.yt-live-chat-author-chip, em.yt-live-chat-author-chip, embed.yt-live-chat-author-chip, fieldset.yt-live-chat-author-chip, font.yt-live-chat-author-chip, form.yt-live-chat-author-chip, h1.yt-live-chat-author-chip, h2.yt-live-chat-author-chip, h3.yt-live-chat-author-chip, h4.yt-live-chat-author-chip, h5.yt-live-chat-author-chip, h6.yt-live-chat-author-chip, hr.yt-live-chat-author-chip, i.yt-live-chat-author-chip, iframe.yt-live-chat-author-chip, img.yt-live-chat-author-chip, ins.yt-live-chat-author-chip, kbd.yt-live-chat-author-chip, label.yt-live-chat-author-chip, legend.yt-live-chat-author-chip, li.yt-live-chat-author-chip, menu.yt-live-chat-author-chip, object.yt-live-chat-author-chip, ol.yt-live-chat-author-chip, p.yt-live-chat-author-chip, pre.yt-live-chat-author-chip, q.yt-live-chat-author-chip, s.yt-live-chat-author-chip, samp.yt-live-chat-author-chip, small.yt-live-chat-author-chip, span.yt-live-chat-author-chip, strike.yt-live-chat-author-chip, strong.yt-live-chat-author-chip, sub.yt-live-chat-author-chip, sup.yt-live-chat-author-chip, table.yt-live-chat-author-chip, tbody.yt-live-chat-author-chip, td.yt-live-chat-author-chip, tfoot.yt-live-chat-author-chip, th.yt-live-chat-author-chip, thead.yt-live-chat-author-chip, tr.yt-live-chat-author-chip, tt.yt-live-chat-author-chip, u.yt-live-chat-author-chip, ul.yt-live-chat-author-chip, var.yt-live-chat-author-chip {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-author-chip[hidden] {
+  display: none !important;
+}
+
+yt-live-chat-author-chip {
+  display: inline-flex;
+  -ms-flex-align: baseline;
+  -webkit-align-items: baseline;
+  align-items: baseline;
+}
+
+#author-name.yt-live-chat-author-chip {
+  box-sizing: border-box;
+  border-radius: 2px;
+  color: var(--yt-live-chat-secondary-text-color);
+  font-weight: 500;
+}
+
+yt-live-chat-author-chip[is-highlighted] #author-name.yt-live-chat-author-chip {
+  padding: 2px 4px;
+  color: var(--yt-live-chat-author-chip-verified-text-color);
+  background-color: var(--yt-live-chat-author-chip-verified-background-color);
+}
+
+#author-name.yt-live-chat-author-chip[type='moderator'] {
+  color: var(--yt-live-chat-moderator-color);
+}
+
+yt-live-chat-author-chip[is-highlighted] #author-name.yt-live-chat-author-chip[type='owner'], #author-name.yt-live-chat-author-chip[type='owner'] {
+  background-color: #ffd600;
+  color: var(--yt-live-chat-author-chip-owner-text-color);
+}
+
+#author-name.yt-live-chat-author-chip[type='member'] {
+  color: var(--yt-live-chat-sponsor-color);
+}
+
+#chip-badges.yt-live-chat-author-chip:empty {
+  display: none;
+}
+
+yt-live-chat-author-chip[is-highlighted] #chat-badges.yt-live-chat-author-chip:not(:empty) {
+  margin-left: 1px;
+}
+
+yt-live-chat-author-badge-renderer.yt-live-chat-author-chip {
+  margin: 0 0 0 2px;
+  vertical-align: sub;
+}
+
+yt-live-chat-author-chip[is-highlighted] #chip-badges.yt-live-chat-author-chip yt-live-chat-author-badge-renderer.yt-live-chat-author-chip {
+  color: inherit;
+}
+
+#chip-badges.yt-live-chat-author-chip yt-live-chat-author-badge-renderer.yt-live-chat-author-chip:last-of-type {
+  margin-right: -2px;
+}

frontend/src/assets/css/youtube/yt-live-chat-item-list-renderer.css

@@ -0,0 +1,140 @@
+canvas.yt-live-chat-item-list-renderer, caption.yt-live-chat-item-list-renderer, center.yt-live-chat-item-list-renderer, cite.yt-live-chat-item-list-renderer, code.yt-live-chat-item-list-renderer, dd.yt-live-chat-item-list-renderer, del.yt-live-chat-item-list-renderer, dfn.yt-live-chat-item-list-renderer, div.yt-live-chat-item-list-renderer, dl.yt-live-chat-item-list-renderer, dt.yt-live-chat-item-list-renderer, em.yt-live-chat-item-list-renderer, embed.yt-live-chat-item-list-renderer, fieldset.yt-live-chat-item-list-renderer, font.yt-live-chat-item-list-renderer, form.yt-live-chat-item-list-renderer, h1.yt-live-chat-item-list-renderer, h2.yt-live-chat-item-list-renderer, h3.yt-live-chat-item-list-renderer, h4.yt-live-chat-item-list-renderer, h5.yt-live-chat-item-list-renderer, h6.yt-live-chat-item-list-renderer, hr.yt-live-chat-item-list-renderer, i.yt-live-chat-item-list-renderer, iframe.yt-live-chat-item-list-renderer, img.yt-live-chat-item-list-renderer, ins.yt-live-chat-item-list-renderer, kbd.yt-live-chat-item-list-renderer, label.yt-live-chat-item-list-renderer, legend.yt-live-chat-item-list-renderer, li.yt-live-chat-item-list-renderer, menu.yt-live-chat-item-list-renderer, object.yt-live-chat-item-list-renderer, ol.yt-live-chat-item-list-renderer, p.yt-live-chat-item-list-renderer, pre.yt-live-chat-item-list-renderer, q.yt-live-chat-item-list-renderer, s.yt-live-chat-item-list-renderer, samp.yt-live-chat-item-list-renderer, small.yt-live-chat-item-list-renderer, span.yt-live-chat-item-list-renderer, strike.yt-live-chat-item-list-renderer, strong.yt-live-chat-item-list-renderer, sub.yt-live-chat-item-list-renderer, sup.yt-live-chat-item-list-renderer, table.yt-live-chat-item-list-renderer, tbody.yt-live-chat-item-list-renderer, td.yt-live-chat-item-list-renderer, tfoot.yt-live-chat-item-list-renderer, th.yt-live-chat-item-list-renderer, thead.yt-live-chat-item-list-renderer, tr.yt-live-chat-item-list-renderer, tt.yt-live-chat-item-list-renderer, u.yt-live-chat-item-list-renderer, ul.yt-live-chat-item-list-renderer, var.yt-live-chat-item-list-renderer {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-item-list-renderer[hidden] {
+  display: none !important;
+}
+
+yt-live-chat-item-list-renderer {
+  position: relative;
+  display: block;
+  overflow: hidden;
+  z-index: 0;
+}
+
+yt-live-chat-item-list-renderer[moderation-mode-enabled] {
+  --yt-live-chat-item-with-inline-actions-context-menu-display: none;
+  --yt-live-chat-inline-action-button-container-display: flex;
+}
+
+#contents.yt-live-chat-item-list-renderer {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+}
+
+#empty-state-message.yt-live-chat-item-list-renderer {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+  -ms-flex-pack: center;
+  -webkit-justify-content: center;
+  justify-content: center;
+}
+
+#empty-state-message.yt-live-chat-item-list-renderer>yt-live-chat-message-renderer.yt-live-chat-item-list-renderer {
+  color: var(--yt-live-chat-tertiary-text-color);
+  background: transparent;
+  font-size: 18px;
+  --yt-live-chat-message-renderer-text-align: center;
+}
+
+yt-icon-button.yt-live-chat-item-list-renderer {
+  background-color: #2196f3;
+  border-radius: 999px;
+  bottom: 0;
+  color: #fff;
+  cursor: pointer;
+  width: 32px;
+  height: 32px;
+  margin: 0 calc(50% - 16px) 8px calc(50% - 16px);
+  padding: 4px;
+  position: absolute;
+  transition-property: bottom;
+  transition-timing-function: cubic-bezier(0.0, 0.0, 0.2, 1);
+  transition-duration: 0.15s;
+  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
+}
+
+yt-icon-button.yt-live-chat-item-list-renderer[disabled] {
+  bottom: -42px;
+  color: #fff;
+  transition-timing-function: cubic-bezier(0.4, 0.0, 1, 1);
+}
+
+#item-scroller.yt-live-chat-item-list-renderer {
+  -ms-flex: 1 1 0.000000001px;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0.000000001px;
+  flex-basis: 0.000000001px;
+  overflow-x: hidden;
+  overflow-y: hidden;
+  padding-right: var(--scrollbar-width);
+}
+
+yt-live-chat-item-list-renderer[allow-scroll] #item-scroller.yt-live-chat-item-list-renderer {
+  overflow-y: scroll;
+  padding-right: 0;
+}
+
+#item-offset.yt-live-chat-item-list-renderer {
+  position: relative;
+}
+
+#item-scroller.animated.yt-live-chat-item-list-renderer #item-offset.yt-live-chat-item-list-renderer {
+  overflow: hidden;
+}
+
+#items.yt-live-chat-item-list-renderer {
+  -ms-flex: 1 1 0.000000001px;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0.000000001px;
+  flex-basis: 0.000000001px;
+  padding: var(--yt-live-chat-item-list-renderer-padding, 4px 0);
+}
+
+#items.yt-live-chat-item-list-renderer>*.yt-live-chat-item-list-renderer:not(:first-child) {
+  border-top: var(--yt-live-chat-item-list-item-border, none);
+}
+
+#item-scroller.animated.yt-live-chat-item-list-renderer #items.yt-live-chat-item-list-renderer {
+  bottom: 0;
+  left: 0;
+  position: absolute;
+  right: 0;
+  transform: translateY(0);
+}
+
+#docked-messages.yt-live-chat-item-list-renderer {
+  z-index: 1;
+  position: absolute;
+  left: 0;
+  right: 0;
+  top: 0;
+}
+
+yt-live-chat-paid-sticker-renderer.yt-live-chat-item-list-renderer {
+  padding: 4px 24px;
+}
+
+yt-live-chat-paid-sticker-renderer.yt-live-chat-item-list-renderer[dashboard-money-feed] {
+  padding: 8px 16px;
+}

frontend/src/assets/css/youtube/yt-live-chat-membership-item-renderer.css

@@ -0,0 +1,360 @@
+#timestamp.yt-live-chat-membership-item-renderer {
+  display: var(--yt-live-chat-item-timestamp-display, inline);
+  margin: var(--yt-live-chat-item-timestamp-margin, 0 8px 0 0);
+  color: var(--yt-live-chat-tertiary-text-color);
+  font-size: 11px;
+}
+
+#author-photo.yt-live-chat-membership-item-renderer {
+  display: block;
+  margin-right: 16px;
+
+  overflow: hidden;
+  border-radius: 50%;
+
+  -ms-flex: var(--layout-flex-none_-_-ms-flex);
+  -webkit-flex: var(--layout-flex-none_-_-webkit-flex);
+  flex: var(--layout-flex-none_-_flex);
+}
+
+#menu-button.yt-live-chat-membership-item-renderer {
+  width: var(--yt-live-chat-32px-icon-button_-_width);
+  height: var(--yt-live-chat-32px-icon-button_-_height);
+  padding: var(--yt-live-chat-32px-icon-button_-_padding);
+}
+
+#menu.yt-live-chat-membership-item-renderer {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  right: 0;
+
+
+  transform: translateX(100px);
+}
+
+yt-live-chat-membership-item-renderer:hover #menu.yt-live-chat-membership-item-renderer,
+yt-live-chat-membership-item-renderer[menu-visible] #menu.yt-live-chat-membership-item-renderer {
+  transform: none;
+}
+
+yt-live-chat-membership-item-renderer:focus-within #menu.yt-live-chat-membership-item-renderer {
+  transform: none;
+}
+
+#inline-action-button-container.yt-live-chat-membership-item-renderer {
+  position: absolute;
+  top: -4px;
+  right: 0;
+  bottom: -4px;
+  left: 0;
+
+  background-color: var(--yt-live-chat-moderation-mode-hover-background-color);
+  display: none;
+
+  -ms-flex-align: var(--layout-center-center_-_-ms-flex-align);
+  -webkit-align-items: var(--layout-center-center_-_-webkit-align-items);
+  align-items: var(--layout-center-center_-_align-items);
+  -ms-flex-pack: var(--layout-center-center_-_-ms-flex-pack);
+  -webkit-justify-content: var(--layout-center-center_-_-webkit-justify-content);
+  justify-content: var(--layout-center-center_-_justify-content);
+}
+
+yt-live-chat-membership-item-renderer[has-inline-action-buttons]:hover #inline-action-button-container.yt-live-chat-membership-item-renderer {
+  display: var(--layout-horizontal_-_display);
+  -ms-flex-direction: var(--layout-horizontal_-_-ms-flex-direction);
+  -webkit-flex-direction: var(--layout-horizontal_-_-webkit-flex-direction);
+  flex-direction: var(--layout-horizontal_-_flex-direction);
+
+
+  display: var(--yt-live-chat-inline-action-button-container-display, none);
+}
+
+yt-live-chat-membership-item-renderer[has-inline-action-buttons][hide-inline-action-buttons]:hover #inline-action-button-container.yt-live-chat-membership-item-renderer {
+  display: none;
+}
+
+yt-live-chat-membership-item-renderer[has-inline-action-buttons]:hover #menu.yt-live-chat-membership-item-renderer {
+  display: var(--yt-live-chat-item-with-inline-actions-context-menu-display, block);
+}
+
+#inline-action-buttons.yt-live-chat-membership-item-renderer>*.yt-live-chat-membership-item-renderer,
+#additional-inline-action-buttons.yt-live-chat-membership-item-renderer>*.yt-live-chat-membership-item-renderer {
+  --yt-button-icon-size: 36px;
+  --yt-button-icon-padding: 6px;
+
+  color: var(--yt-white);
+  border-radius: 2px;
+}
+
+#inline-action-buttons.yt-live-chat-membership-item-renderer>*.yt-live-chat-membership-item-renderer {
+  background: var(--yt-luna-black-opacity-lighten-1);
+}
+
+#inline-action-buttons.yt-live-chat-membership-item-renderer>.yt-live-chat-membership-item-renderer:hover {
+  background: var(--yt-luna-black);
+}
+
+#additional-inline-action-buttons.yt-live-chat-membership-item-renderer>*.yt-live-chat-membership-item-renderer {
+  color: var(--yt-live-chat-additional-inline-action-button-color);
+  background: var(--yt-live-chat-additional-inline-action-button-background-color);
+}
+
+#additional-inline-action-buttons.yt-live-chat-membership-item-renderer>.yt-live-chat-membership-item-renderer:hover {
+  background: var(--yt-live-chat-additional-inline-action-button-background-color-hover);
+}
+
+#additional-inline-action-buttons.yt-live-chat-membership-item-renderer:not(:empty) {
+  margin-left: 32px;
+}
+
+#inline-action-buttons.yt-live-chat-membership-item-renderer>*.yt-live-chat-membership-item-renderer:not(:first-child),
+#additional-inline-action-buttons.yt-live-chat-membership-item-renderer>*.yt-live-chat-membership-item-renderer:not(:first-child) {
+  margin-left: 8px;
+}
+
+yt-live-chat-membership-item-renderer {
+  position: relative;
+  display: block;
+
+  --yt-live-chat-sponsor-header-color: #0a8043;
+  --yt-live-chat-sponsor-color: #0f9d58;
+  --yt-live-chat-sponsor-text-color: #fff;
+  --yt-live-chat-item-timestamp-display: var(--yt-live-chat-paid-message-timestamp-display, none);
+
+  padding: 4px 24px;
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] {
+  padding: 0;
+
+  --yt-live-chat-item-timestamp-display: block;
+}
+
+#card.yt-live-chat-membership-item-renderer {
+  overflow: hidden;
+  font-size: 14px;
+  border-radius: 4px;
+
+  display: var(--layout-vertical_-_display);
+  -ms-flex-direction: var(--layout-vertical_-_-ms-flex-direction);
+  -webkit-flex-direction: var(--layout-vertical_-_-webkit-flex-direction);
+  flex-direction: var(--layout-vertical_-_flex-direction);
+  box-shadow: var(--shadow-elevation-2dp_-_box-shadow);
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] #card.yt-live-chat-membership-item-renderer {
+  border-radius: 0;
+  box-shadow: none;
+}
+
+#header.yt-live-chat-membership-item-renderer {
+  position: relative;
+
+  background-color: var(--yt-live-chat-sponsor-header-color);
+  padding: 8px 16px;
+  color: #fff;
+  min-height: 20px;
+
+  display: var(--layout-horizontal_-_display);
+  -ms-flex-direction: var(--layout-horizontal_-_-ms-flex-direction);
+  -webkit-flex-direction: var(--layout-horizontal_-_-webkit-flex-direction);
+  flex-direction: var(--layout-horizontal_-_flex-direction);
+  -ms-flex-align: var(--layout-center_-_-ms-flex-align);
+  -webkit-align-items: var(--layout-center_-_-webkit-align-items);
+  align-items: var(--layout-center_-_align-items);
+}
+
+yt-live-chat-membership-item-renderer[show-only-header] #header.yt-live-chat-membership-item-renderer {
+  background-color: var(--yt-live-chat-sponsor-color);
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] #header.yt-live-chat-membership-item-renderer {
+  color: var(--yt-live-chat-secondary-text-color);
+  background-color: var(--yt-live-chat-background-color);
+  -ms-flex-align: var(--layout-start_-_-ms-flex-align);
+  -webkit-align-items: var(--layout-start_-_-webkit-align-items);
+  align-items: var(--layout-start_-_align-items);
+}
+
+#header-content.yt-live-chat-membership-item-renderer {
+  display: var(--layout-horizontal_-_display);
+  -ms-flex-direction: var(--layout-horizontal_-_-ms-flex-direction);
+  -webkit-flex-direction: var(--layout-horizontal_-_-webkit-flex-direction);
+  flex-direction: var(--layout-horizontal_-_flex-direction);
+  -ms-flex-pack: var(--layout-justified_-_-ms-flex-pack);
+  -webkit-justify-content: var(--layout-justified_-_-webkit-justify-content);
+  justify-content: var(--layout-justified_-_justify-content);
+  -ms-flex: var(--layout-flex_-_-ms-flex);
+  -webkit-flex: var(--layout-flex_-_-webkit-flex);
+  flex: var(--layout-flex_-_flex);
+  -webkit-flex-basis: var(--layout-flex_-_-webkit-flex-basis);
+  flex-basis: var(--layout-flex_-_flex-basis);
+  -ms-flex-align: var(--layout-baseline_-_-ms-flex-align);
+  -webkit-align-items: var(--layout-baseline_-_-webkit-align-items);
+  align-items: var(--layout-baseline_-_align-items);
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] #header-content.yt-live-chat-membership-item-renderer {
+  display: var(--layout-vertical_-_display);
+  -ms-flex-direction: var(--layout-vertical_-_-ms-flex-direction);
+  -webkit-flex-direction: var(--layout-vertical_-_-webkit-flex-direction);
+  flex-direction: var(--layout-vertical_-_flex-direction);
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] #header-content-inner-column.yt-live-chat-membership-item-renderer {
+  margin-bottom: 4px;
+
+  display: var(--layout-horizontal_-_display);
+  -ms-flex-direction: var(--layout-horizontal_-_-ms-flex-direction);
+  -webkit-flex-direction: var(--layout-horizontal_-_-webkit-flex-direction);
+  flex-direction: var(--layout-horizontal_-_flex-direction);
+  -ms-flex-align: var(--layout-center_-_-ms-flex-align);
+  -webkit-align-items: var(--layout-center_-_-webkit-align-items);
+  align-items: var(--layout-center_-_align-items);
+  -ms-flex: var(--layout-flex-none_-_-ms-flex);
+  -webkit-flex: var(--layout-flex-none_-_-webkit-flex);
+  flex: var(--layout-flex-none_-_flex);
+}
+
+#author-photo.yt-live-chat-membership-item-renderer {
+  width: 40px;
+  height: 40px;
+}
+
+yt-icon#author-photo.yt-live-chat-membership-item-renderer {
+  display: none;
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] yt-icon#author-photo.yt-live-chat-membership-item-renderer {
+  display: block;
+}
+
+yt-live-chat-membership-item-renderer:not([dashboard-money-feed]) yt-live-chat-author-chip.yt-live-chat-membership-item-renderer {
+  --yt-live-chat-sponsor-color: var(--yt-live-chat-sponsor-text-color);
+  --yt-live-chat-secondary-text-color: var(--yt-live-chat-sponsor-text-color);
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] yt-live-chat-author-chip.yt-live-chat-membership-item-renderer {
+  margin-right: 8px;
+  font-weight: 500;
+  --yt-live-chat-sponsor-color: var(--yt-live-chat-secondary-text-color);
+}
+
+#header-subtext.yt-live-chat-membership-item-renderer {
+  margin-top: 2px;
+  color: rgba(255, 255, 255, 0.7);
+  font-weight: 500;
+  font-size: 15px;
+}
+
+#header-subtext.yt-live-chat-membership-item-renderer:empty {
+  display: none;
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] #header-subtext.yt-live-chat-membership-item-renderer {
+  margin: 4px 0 13px;
+  font-size: 11px;
+  font-weight: normal;
+  color: var(--yt-live-chat-secondary-text-color);
+}
+
+#header-primary-text.yt-live-chat-membership-item-renderer {
+  word-wrap: break-word;
+  word-break: break-word;
+  font-weight: 500;
+  color: rgba(255, 255, 255, 1);
+}
+
+#header-primary-text.yt-live-chat-membership-item-renderer:empty {
+  display: none;
+}
+
+yt-live-chat-membership-item-renderer[has-primary-header-text]:not([dashboard-money-feed]) yt-live-chat-author-chip.yt-live-chat-membership-item-renderer,
+yt-live-chat-membership-item-renderer[has-primary-header-text]:not([dashboard-money-feed]) #header-subtext.yt-live-chat-membership-item-renderer {
+  font-size: 12px;
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] #header-primary-text.yt-live-chat-membership-item-renderer {
+  display: inline;
+  height: 24px;
+  min-width: 16px;
+  border-radius: 12px;
+  margin-right: 8px;
+  padding: 0 12px;
+  background-color: var(--yt-live-chat-sponsor-color);
+  color: var(--yt-white);
+  display: var(--layout-inline_-_display, inline);
+  -ms-flex-align: var(--layout-center-center_-_-ms-flex-align);
+  -webkit-align-items: var(--layout-center-center_-_-webkit-align-items);
+  align-items: var(--layout-center-center_-_align-items);
+  -ms-flex-pack: var(--layout-center-center_-_-ms-flex-pack);
+  -webkit-justify-content: var(--layout-center-center_-_-webkit-justify-content);
+  justify-content: var(--layout-center-center_-_justify-content);
+  font-size: var(--ytd-badge_-_font-size);
+  font-weight: var(--ytd-badge_-_font-weight);
+  line-height: var(--ytd-badge_-_line-height);
+}
+
+#content.yt-live-chat-membership-item-renderer {
+  background-color: var(--yt-live-chat-sponsor-color);
+  color: var(--yt-live-chat-sponsor-text-color);
+  padding: 8px 16px;
+  word-wrap: break-word;
+  word-break: break-word;
+  font-size: 15px;
+  line-height: 20px;
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] #content.yt-live-chat-membership-item-renderer {
+  background-color: unset;
+  font-size: unset;
+  color: var(--yt-live-chat-secondary-text-color);
+  padding: 0 0 16px 72px;
+}
+
+#content.yt-live-chat-membership-item-renderer img.yt-live-chat-membership-item-renderer {
+  width: var(--yt-live-chat-emoji-size);
+  height: var(--yt-live-chat-emoji-size);
+
+  margin: -1px 2px 1px 2px;
+  vertical-align: middle;
+}
+
+yt-live-chat-membership-item-renderer[show-only-header] #content.yt-live-chat-membership-item-renderer,
+#deleted-state.yt-live-chat-membership-item-renderer:empty {
+  display: none;
+}
+
+#deleted-state.yt-live-chat-membership-item-renderer {
+  display: block;
+  font-style: italic;
+  opacity: 0.7;
+}
+
+a.yt-live-chat-membership-item-renderer {
+  display: inline;
+  text-decoration: underline;
+}
+
+#message.yt-live-chat-membership-item-renderer a.yt-live-chat-membership-item-renderer {
+  word-break: break-all;
+}
+
+#message.yt-live-chat-membership-item-renderer a.yt-live-chat-membership-item-renderer .mention.yt-live-chat-membership-item-renderer {
+  text-decoration: underline;
+}
+
+#menu.yt-live-chat-membership-item-renderer {
+  background: linear-gradient(to right, transparent, var(--yt-live-chat-sponsor-header-color) 100%);
+  border-radius: 0 4px 4px 0;
+}
+
+yt-live-chat-membership-item-renderer[show-only-header] #menu.yt-live-chat-membership-item-renderer {
+  background: linear-gradient(to right, transparent, var(--yt-live-chat-sponsor-color) 100%);
+}
+
+yt-live-chat-membership-item-renderer[dashboard-money-feed] #menu.yt-live-chat-membership-item-renderer {
+  margin-top: 8px;
+  background: linear-gradient(to right, transparent, var(--yt-live-chat-background-color) 40%);
+}

frontend/src/assets/css/youtube/yt-live-chat-paid-message-renderer.css

@@ -0,0 +1,378 @@
+canvas.yt-live-chat-paid-message-renderer, caption.yt-live-chat-paid-message-renderer, center.yt-live-chat-paid-message-renderer, cite.yt-live-chat-paid-message-renderer, code.yt-live-chat-paid-message-renderer, dd.yt-live-chat-paid-message-renderer, del.yt-live-chat-paid-message-renderer, dfn.yt-live-chat-paid-message-renderer, div.yt-live-chat-paid-message-renderer, dl.yt-live-chat-paid-message-renderer, dt.yt-live-chat-paid-message-renderer, em.yt-live-chat-paid-message-renderer, embed.yt-live-chat-paid-message-renderer, fieldset.yt-live-chat-paid-message-renderer, font.yt-live-chat-paid-message-renderer, form.yt-live-chat-paid-message-renderer, h1.yt-live-chat-paid-message-renderer, h2.yt-live-chat-paid-message-renderer, h3.yt-live-chat-paid-message-renderer, h4.yt-live-chat-paid-message-renderer, h5.yt-live-chat-paid-message-renderer, h6.yt-live-chat-paid-message-renderer, hr.yt-live-chat-paid-message-renderer, i.yt-live-chat-paid-message-renderer, iframe.yt-live-chat-paid-message-renderer, img.yt-live-chat-paid-message-renderer, ins.yt-live-chat-paid-message-renderer, kbd.yt-live-chat-paid-message-renderer, label.yt-live-chat-paid-message-renderer, legend.yt-live-chat-paid-message-renderer, li.yt-live-chat-paid-message-renderer, menu.yt-live-chat-paid-message-renderer, object.yt-live-chat-paid-message-renderer, ol.yt-live-chat-paid-message-renderer, p.yt-live-chat-paid-message-renderer, pre.yt-live-chat-paid-message-renderer, q.yt-live-chat-paid-message-renderer, s.yt-live-chat-paid-message-renderer, samp.yt-live-chat-paid-message-renderer, small.yt-live-chat-paid-message-renderer, span.yt-live-chat-paid-message-renderer, strike.yt-live-chat-paid-message-renderer, strong.yt-live-chat-paid-message-renderer, sub.yt-live-chat-paid-message-renderer, sup.yt-live-chat-paid-message-renderer, table.yt-live-chat-paid-message-renderer, tbody.yt-live-chat-paid-message-renderer, td.yt-live-chat-paid-message-renderer, tfoot.yt-live-chat-paid-message-renderer, th.yt-live-chat-paid-message-renderer, thead.yt-live-chat-paid-message-renderer, tr.yt-live-chat-paid-message-renderer, tt.yt-live-chat-paid-message-renderer, u.yt-live-chat-paid-message-renderer, ul.yt-live-chat-paid-message-renderer, var.yt-live-chat-paid-message-renderer {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-paid-message-renderer[hidden] {
+  display: none !important;
+}
+
+#timestamp.yt-live-chat-paid-message-renderer {
+  display: var(--yt-live-chat-item-timestamp-display, inline);
+  margin: var(--yt-live-chat-item-timestamp-margin, 0 8px 0 0);
+  color: var(--yt-live-chat-tertiary-text-color);
+  font-size: 11px;
+}
+
+#author-photo.yt-live-chat-paid-message-renderer {
+  display: block;
+  margin-right: 16px;
+  overflow: hidden;
+  border-radius: 50%;
+  -ms-flex: none;
+  -webkit-flex: none;
+  flex: none;
+}
+
+#menu-button.yt-live-chat-paid-message-renderer {
+  width: 40px;
+  height: 40px;
+  padding: 8px;
+}
+
+#menu.yt-live-chat-paid-message-renderer {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  right: 0;
+  transform: translateX(100px);
+}
+
+yt-live-chat-paid-message-renderer:hover #menu.yt-live-chat-paid-message-renderer, yt-live-chat-paid-message-renderer[menu-visible] #menu.yt-live-chat-paid-message-renderer {
+  transform: none;
+}
+
+yt-live-chat-paid-message-renderer:focus-within #menu.yt-live-chat-paid-message-renderer {
+  transform: none;
+}
+
+#inline-action-button-container.yt-live-chat-paid-message-renderer {
+  position: absolute;
+  top: -4px;
+  right: 0;
+  bottom: -4px;
+  left: 0;
+  background-color: var(--yt-live-chat-moderation-mode-hover-background-color);
+  display: none;
+  -ms-flex-align: center;
+  -webkit-align-items: center;
+  align-items: center;
+  -ms-flex-pack: center;
+  -webkit-justify-content: center;
+  justify-content: center;
+}
+
+yt-live-chat-paid-message-renderer[has-inline-action-buttons]:hover #inline-action-button-container.yt-live-chat-paid-message-renderer {
+  display: flex;
+  -ms-flex-direction: row;
+  -webkit-flex-direction: row;
+  flex-direction: row;
+  display: var(--yt-live-chat-inline-action-button-container-display, none);
+}
+
+yt-live-chat-paid-message-renderer[has-inline-action-buttons][hide-inline-action-buttons]:hover #inline-action-button-container.yt-live-chat-paid-message-renderer {
+  display: none;
+}
+
+yt-live-chat-paid-message-renderer[has-inline-action-buttons]:hover #menu.yt-live-chat-paid-message-renderer {
+  display: var(--yt-live-chat-item-with-inline-actions-context-menu-display, block);
+}
+
+#inline-action-buttons.yt-live-chat-paid-message-renderer>*.yt-live-chat-paid-message-renderer, #additional-inline-action-buttons.yt-live-chat-paid-message-renderer>*.yt-live-chat-paid-message-renderer {
+  --yt-button-icon-size: 36px;
+  --yt-button-icon-padding: 6px;
+  color: hsl(0, 0%, 100%);
+  border-radius: 2px;
+}
+
+#inline-action-buttons.yt-live-chat-paid-message-renderer>*.yt-live-chat-paid-message-renderer {
+  background: hsla(0, 0%, 6.7%, .8);
+}
+
+#inline-action-buttons.yt-live-chat-paid-message-renderer>.yt-live-chat-paid-message-renderer:hover {
+  background: hsl(0, 0%, 6.7%);
+}
+
+#additional-inline-action-buttons.yt-live-chat-paid-message-renderer>*.yt-live-chat-paid-message-renderer {
+  color: var(--yt-live-chat-additional-inline-action-button-color);
+  background: var(--yt-live-chat-additional-inline-action-button-background-color);
+}
+
+#additional-inline-action-buttons.yt-live-chat-paid-message-renderer>.yt-live-chat-paid-message-renderer:hover {
+  background: var(--yt-live-chat-additional-inline-action-button-background-color-hover);
+}
+
+#additional-inline-action-buttons.yt-live-chat-paid-message-renderer:not(:empty) {
+  margin-left: 32px;
+}
+
+#inline-action-buttons.yt-live-chat-paid-message-renderer>*.yt-live-chat-paid-message-renderer:not(:first-child), #additional-inline-action-buttons.yt-live-chat-paid-message-renderer>*.yt-live-chat-paid-message-renderer:not(:first-child) {
+  margin-left: 8px;
+}
+
+yt-live-chat-paid-message-renderer {
+  position: relative;
+  display: block;
+  padding: 4px 24px;
+  font-size: 15px;
+  --yt-live-chat-paid-message-background-color: var(--yt-live-chat-paid-message-primary-color);
+  --yt-live-chat-paid-message-header-background-color: var(--yt-live-chat-paid-message-secondary-color);
+  --yt-live-chat-text-input-field-placeholder-color: var(--yt-live-chat-paid-message-color);
+  --yt-live-chat-item-timestamp-display: var(--yt-live-chat-paid-message-timestamp-display, none);
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] {
+  padding: 0;
+  padding-bottom: 8px;
+  --yt-live-chat-paid-message-background-color: transparent;
+  --yt-live-chat-paid-message-header-background-color: transparent;
+  --yt-live-chat-item-timestamp-display: block;
+}
+
+#card.yt-live-chat-paid-message-renderer {
+  border-radius: 4px;
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #card.yt-live-chat-paid-message-renderer {
+  border-radius: 0;
+  box-shadow: none;
+}
+
+#header.yt-live-chat-paid-message-renderer {
+  position: relative;
+  background-color: var(--yt-live-chat-paid-message-header-background-color, #125aac);
+  color: var(--yt-live-chat-paid-message-header-color, #fff);
+  font-weight: 500;
+  padding: 8px 16px;
+  min-height: 20px;
+  display: flex;
+  -ms-flex-direction: row;
+  -webkit-flex-direction: row;
+  flex-direction: row;
+  -ms-flex-align: center;
+  -webkit-align-items: center;
+  align-items: center;
+  border-top-left-radius: 4px;
+  border-top-right-radius: 4px;
+}
+
+yt-live-chat-paid-message-renderer[show-only-header] #header.yt-live-chat-paid-message-renderer {
+  border-bottom-left-radius: 4px;
+  border-bottom-right-radius: 4px;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #header.yt-live-chat-paid-message-renderer {
+  color: var(--yt-live-chat-secondary-text-color);
+  padding-bottom: 0;
+}
+
+#author-photo.yt-live-chat-paid-message-renderer {
+  width: 40px;
+  height: 40px;
+}
+
+yt-icon#author-photo.yt-live-chat-paid-message-renderer {
+  display: none;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] yt-icon#author-photo.yt-live-chat-paid-message-renderer {
+  display: block;
+}
+
+#header-content.yt-live-chat-paid-message-renderer {
+  display: flex;
+  -ms-flex-direction: row;
+  -webkit-flex-direction: row;
+  flex-direction: row;
+  -ms-flex-pack: justify;
+  -webkit-justify-content: space-between;
+  justify-content: space-between;
+  -ms-flex: 1 1 0.000000001px;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0.000000001px;
+  flex-basis: 0.000000001px;
+  -ms-flex-align: baseline;
+  -webkit-align-items: baseline;
+  align-items: baseline;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #header-content.yt-live-chat-paid-message-renderer {
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+}
+
+#header-content-primary-column.yt-live-chat-paid-message-renderer {
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+  -ms-flex-pack: justify;
+  -webkit-justify-content: space-between;
+  justify-content: space-between;
+  -ms-flex: 1 1 0.000000001px;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0.000000001px;
+  flex-basis: 0.000000001px;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #header-content-primary-column.yt-live-chat-paid-message-renderer {
+  margin-bottom: 4px;
+  display: flex;
+  -ms-flex-direction: row;
+  -webkit-flex-direction: row;
+  flex-direction: row;
+  -ms-flex-align: baseline;
+  -webkit-align-items: baseline;
+  align-items: baseline;
+  -ms-flex: none;
+  -webkit-flex: none;
+  flex: none;
+}
+
+#author-name.yt-live-chat-paid-message-renderer {
+  color: var(--yt-live-chat-paid-message-author-name-color, rgba(255, 255, 255, 0.7));
+  font-size: 14px;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #author-name.yt-live-chat-paid-message-renderer {
+  margin-right: 8px;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #purchase-amount.yt-live-chat-paid-message-renderer {
+  display: inline;
+  height: 24px;
+  min-width: 16px;
+  border-radius: 12px;
+  margin-right: 8px;
+  padding: 0 12px;
+  background-color: var(--yt-live-chat-paid-message-primary-color);
+  color: var(--yt-live-chat-paid-message-color);
+  display: inline-flex;
+  -ms-flex-align: center;
+  -webkit-align-items: center;
+  align-items: center;
+  -ms-flex-pack: center;
+  -webkit-justify-content: center;
+  justify-content: center;
+  font-size: 1.2rem;
+  font-weight: 500;
+  line-height: 1.2rem;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #author-name.yt-live-chat-paid-message-renderer {
+  display: block;
+  color: var(--yt-live-chat-secondary-text-color);
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #author-name.yt-live-chat-paid-message-renderer[is-deleted] {
+  margin: 4px 0 0;
+  order: 1;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #author-name.yt-live-chat-paid-message-renderer[is-deleted].yt-live-chat-paid-message-renderer::before {
+  content: '​';
+  display: inline;
+  width: 0;
+}
+
+#menu.yt-live-chat-paid-message-renderer {
+  background: linear-gradient(to right, transparent, var(--yt-live-chat-paid-message-header-background-color, #125aac) 100%);
+  border-radius: 0 4px 4px 0;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #menu.yt-live-chat-paid-message-renderer {
+  margin-top: 8px;
+  background: linear-gradient(to right, transparent, var(--yt-live-chat-background-color) 40%);
+}
+
+yt-live-chat-paid-message-renderer[allow-animations] #content.yt-live-chat-paid-message-renderer, yt-live-chat-paid-message-renderer[allow-animations] #header.yt-live-chat-paid-message-renderer {
+  transition-property: background-color, color;
+  transition-duration: 0.2s;
+}
+
+#content.yt-live-chat-paid-message-renderer {
+  background-color: var(--yt-live-chat-paid-message-background-color, #1565c0);
+  color: var(--yt-live-chat-paid-message-color, #fff);
+  padding: 8px 16px;
+  word-wrap: break-word;
+  word-break: break-word;
+  border-bottom-left-radius: 4px;
+  border-bottom-right-radius: 4px;
+}
+
+#content.yt-live-chat-paid-message-renderer img.yt-live-chat-paid-message-renderer {
+  width: var(--yt-live-chat-emoji-size);
+  height: var(--yt-live-chat-emoji-size);
+  margin: -1px 2px 1px 2px;
+  vertical-align: middle;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #content.yt-live-chat-paid-message-renderer {
+  padding: 0;
+  padding-left: 72px;
+  color: var(--yt-live-chat-secondary-text-color);
+}
+
+yt-live-chat-paid-message-renderer[show-only-header] #content.yt-live-chat-paid-message-renderer {
+  visibility: hidden;
+  padding: 0;
+}
+
+a.yt-live-chat-paid-message-renderer {
+  display: inline;
+  text-decoration: underline;
+}
+
+#message.yt-live-chat-paid-message-renderer a.yt-live-chat-paid-message-renderer {
+  word-break: break-all;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #message.yt-live-chat-paid-message-renderer {
+  margin-top: 4px;
+}
+
+#message.yt-live-chat-paid-message-renderer a.yt-live-chat-paid-message-renderer .mention.yt-live-chat-paid-message-renderer {
+  text-decoration: underline;
+}
+
+#message.yt-live-chat-paid-message-renderer:empty, #author-name.yt-live-chat-paid-message-renderer:empty:not([is-deleted]).yt-live-chat-paid-message-renderer, #deleted-state.yt-live-chat-paid-message-renderer:empty {
+  display: none;
+}
+
+#deleted-state.yt-live-chat-paid-message-renderer {
+  display: block;
+  font-style: italic;
+  opacity: 0.7;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #deleted-state.yt-live-chat-paid-message-renderer[is-deleted] {
+  margin-top: 4px;
+}
+
+yt-live-chat-paid-message-renderer[dashboard-money-feed] #author-name.yt-live-chat-paid-message-renderer {
+  -ms-flex: none;
+  -webkit-flex: none;
+  flex: none;
+}
+
+yt-live-chat-paid-message-renderer[show-footer-divider] #footer.yt-live-chat-paid-message-renderer::before {
+  content: "";
+  display: flex;
+  border-top: 1px solid rgba(0, 0, 0, 0.12);
+  margin: 8px 0;
+}
+
+yt-live-chat-paid-message-renderer[is-user-editable] #footer.yt-live-chat-paid-message-renderer:not(:empty) {
+  padding-top: 8px;
+}

frontend/src/assets/css/youtube/yt-live-chat-renderer.css

@@ -0,0 +1,252 @@
+yt-live-chat-renderer, yt-live-chat-item-list-renderer #item-scroller {
+  height: 100%;
+}
+
+yt-live-chat-renderer ::-webkit-scrollbar {
+  content: '';
+}
+
+yt-live-chat-renderer ::-webkit-scrollbar-thumb {
+  background-color: hsla(0, 0%, 53.3%, .2);
+  border: 2px solid #fcfcfc;
+  min-height: 30px;
+}
+
+yt-live-chat-renderer ::-webkit-scrollbar-track {
+  background-color: #fcfcfc;
+}
+
+
+canvas.yt-live-chat-renderer, caption.yt-live-chat-renderer, center.yt-live-chat-renderer, cite.yt-live-chat-renderer, code.yt-live-chat-renderer, dd.yt-live-chat-renderer, del.yt-live-chat-renderer, dfn.yt-live-chat-renderer, div.yt-live-chat-renderer, dl.yt-live-chat-renderer, dt.yt-live-chat-renderer, em.yt-live-chat-renderer, embed.yt-live-chat-renderer, fieldset.yt-live-chat-renderer, font.yt-live-chat-renderer, form.yt-live-chat-renderer, h1.yt-live-chat-renderer, h2.yt-live-chat-renderer, h3.yt-live-chat-renderer, h4.yt-live-chat-renderer, h5.yt-live-chat-renderer, h6.yt-live-chat-renderer, hr.yt-live-chat-renderer, i.yt-live-chat-renderer, iframe.yt-live-chat-renderer, img.yt-live-chat-renderer, ins.yt-live-chat-renderer, kbd.yt-live-chat-renderer, label.yt-live-chat-renderer, legend.yt-live-chat-renderer, li.yt-live-chat-renderer, menu.yt-live-chat-renderer, object.yt-live-chat-renderer, ol.yt-live-chat-renderer, p.yt-live-chat-renderer, pre.yt-live-chat-renderer, q.yt-live-chat-renderer, s.yt-live-chat-renderer, samp.yt-live-chat-renderer, small.yt-live-chat-renderer, span.yt-live-chat-renderer, strike.yt-live-chat-renderer, strong.yt-live-chat-renderer, sub.yt-live-chat-renderer, sup.yt-live-chat-renderer, table.yt-live-chat-renderer, tbody.yt-live-chat-renderer, td.yt-live-chat-renderer, tfoot.yt-live-chat-renderer, th.yt-live-chat-renderer, thead.yt-live-chat-renderer, tr.yt-live-chat-renderer, tt.yt-live-chat-renderer, u.yt-live-chat-renderer, ul.yt-live-chat-renderer, var.yt-live-chat-renderer {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-renderer[hidden] {
+  display: none !important;
+}
+
+yt-live-chat-renderer {
+  font-size: 13px;
+  --yt-emoji-picker-renderer-height: 180px;
+  --yt-button-default-text-color: var(--yt-live-chat-button-default-text-color);
+  --yt-button-default-background-color: var(--yt-live-chat-button-default-background-color);
+  --yt-button-dark-text-color: var(--yt-live-chat-button-dark-text-color);
+  --yt-button-dark-background-color: var(--yt-live-chat-button-dark-background-color);
+  --yt-button-payment-background-color: var(--yt-live-chat-sponsor-color);
+}
+
+yt-live-chat-renderer {
+  position: relative;
+  background: var(--yt-live-chat-background-color);
+  color: var(--yt-live-chat-primary-text-color);
+  overflow: hidden;
+  z-index: 0;
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+}
+
+yt-live-chat-renderer[hide-timestamps] {
+  --yt-live-chat-item-timestamp-display: none;
+}
+
+#separator.yt-live-chat-renderer {
+  border-bottom: var(--yt-live-chat-header-bottom-border, none);
+}
+
+#content-pages.yt-live-chat-renderer {
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+  -ms-flex: 1 1 0.000000001px;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0.000000001px;
+  flex-basis: 0.000000001px;
+}
+
+#panel-pages.yt-live-chat-renderer {
+  max-height: 100%;
+  overflow-x: hidden;
+  overflow-y: auto;
+}
+
+#contents.yt-live-chat-renderer {
+  overflow: hidden;
+  position: relative;
+  z-index: 0;
+}
+
+#chat-messages.yt-live-chat-renderer, #contents.yt-live-chat-renderer, #item-list.yt-live-chat-renderer {
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+  -ms-flex: 1 1 0.000000001px;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0.000000001px;
+  flex-basis: 0.000000001px;
+}
+
+#ticker.yt-live-chat-renderer {
+  z-index: 1;
+}
+
+#chat.yt-live-chat-renderer {
+  position: relative;
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+  -ms-flex: 1 1 0.000000001px;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0.000000001px;
+  flex-basis: 0.000000001px;
+}
+
+#chat.yt-live-chat-renderer::after {
+  content: '';
+  display: none;
+  animation: gradient-slide 1.2s ease infinite;
+  animation-name: gradient-slide;
+  background-color: var(--yt-live-chat-shimmer-background-color);
+  background-image: var(--yt-live-chat-shimmer-linear-gradient);
+  background-size: 300% 300%;
+  transform: rotateX(180deg);
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+}
+
+yt-live-chat-renderer[loading] #chat.yt-live-chat-renderer::after {
+  display: block;
+}
+
+yt-live-chat-pinned-message-renderer.yt-live-chat-renderer {
+  bottom: 0;
+  left: 0;
+  position: absolute;
+  right: 0;
+  top: 0;
+}
+
+yt-live-chat-item-list-renderer.yt-live-chat-renderer, yt-live-chat-ninja-message-renderer.yt-live-chat-renderer {
+  -ms-flex: 1 1 0.000000001px;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0.000000001px;
+  flex-basis: 0.000000001px;
+}
+
+#action-panel.yt-live-chat-renderer {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  overflow: hidden;
+}
+
+yt-live-chat-renderer[has-action-panel-renderer] yt-live-chat-action-panel-renderer.yt-live-chat-renderer {
+  animation: slideUp cubic-bezier(0.05, 0.00, 0.00, 1.00) forwards;
+  animation-duration: 0.5s;
+}
+
+#action-panel-backdrop.yt-live-chat-renderer {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  visibility: hidden;
+}
+
+yt-live-chat-renderer[has-action-panel-renderer] #action-panel-backdrop.yt-live-chat-renderer {
+  visibility: visible;
+  animation: fadeIn cubic-bezier(0.05, 0.00, 0.00, 1.00) forwards;
+  animation-duration: 0.5s;
+}
+
+#input-panel.yt-live-chat-renderer {
+  -ms-flex: none;
+  -webkit-flex: none;
+  flex: none;
+}
+
+#input-panel.yt-live-chat-renderer:not(:empty) {
+  border-top: var(--yt-live-chat-action-panel-top-border, none);
+}
+
+.hide-on-collapse.yt-live-chat-renderer {
+  transition: opacity 0.3s;
+}
+
+yt-live-chat-renderer[collapsed] .hide-on-collapse.yt-live-chat-renderer {
+  opacity: 0;
+}
+
+#loading.yt-live-chat-renderer {
+  height: 387px;
+  background-color: var(--yt-live-chat-action-panel-background-color);
+  display: flex;
+  -ms-flex-direction: column;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+  -ms-flex-align: center;
+  -webkit-align-items: center;
+  align-items: center;
+  -ms-flex-pack: center;
+  -webkit-justify-content: center;
+  justify-content: center;
+}
+
+#loading.yt-live-chat-renderer>paper-spinner-lite.yt-live-chat-renderer {
+  --paper-spinner-color: var(--yt-live-chat-primary-text-color);
+}
+
+#nitrate-promo.yt-live-chat-renderer>*.yt-live-chat-renderer {
+  background: var(--yt-live-chat-overlay-color);
+  z-index: 3;
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+}
+
+@keyframes gradient-slide {
+  0% {
+    background-position: 100% 100%;
+  }
+  to {
+    background-position: 0% 0%;
+  }
+}
+
+@keyframes slideUp {
+  0% {
+    transform: translateY(15%);
+    opacity: 0;
+  }
+  100% {
+    transform: translateY(0);
+    opacity: 1;
+  }
+}
+
+@keyframes fadeIn {
+  0% {
+    background-color: transparent;
+  }
+  100% {
+    background-color: rgba(0, 0, 0, 0.60);
+  }
+}

frontend/src/assets/css/youtube/yt-live-chat-text-message-renderer.css

@@ -0,0 +1,230 @@
+canvas.yt-live-chat-text-message-renderer, caption.yt-live-chat-text-message-renderer, center.yt-live-chat-text-message-renderer, cite.yt-live-chat-text-message-renderer, code.yt-live-chat-text-message-renderer, dd.yt-live-chat-text-message-renderer, del.yt-live-chat-text-message-renderer, dfn.yt-live-chat-text-message-renderer, div.yt-live-chat-text-message-renderer, dl.yt-live-chat-text-message-renderer, dt.yt-live-chat-text-message-renderer, em.yt-live-chat-text-message-renderer, embed.yt-live-chat-text-message-renderer, fieldset.yt-live-chat-text-message-renderer, font.yt-live-chat-text-message-renderer, form.yt-live-chat-text-message-renderer, h1.yt-live-chat-text-message-renderer, h2.yt-live-chat-text-message-renderer, h3.yt-live-chat-text-message-renderer, h4.yt-live-chat-text-message-renderer, h5.yt-live-chat-text-message-renderer, h6.yt-live-chat-text-message-renderer, hr.yt-live-chat-text-message-renderer, i.yt-live-chat-text-message-renderer, iframe.yt-live-chat-text-message-renderer, img.yt-live-chat-text-message-renderer, ins.yt-live-chat-text-message-renderer, kbd.yt-live-chat-text-message-renderer, label.yt-live-chat-text-message-renderer, legend.yt-live-chat-text-message-renderer, li.yt-live-chat-text-message-renderer, menu.yt-live-chat-text-message-renderer, object.yt-live-chat-text-message-renderer, ol.yt-live-chat-text-message-renderer, p.yt-live-chat-text-message-renderer, pre.yt-live-chat-text-message-renderer, q.yt-live-chat-text-message-renderer, s.yt-live-chat-text-message-renderer, samp.yt-live-chat-text-message-renderer, small.yt-live-chat-text-message-renderer, span.yt-live-chat-text-message-renderer, strike.yt-live-chat-text-message-renderer, strong.yt-live-chat-text-message-renderer, sub.yt-live-chat-text-message-renderer, sup.yt-live-chat-text-message-renderer, table.yt-live-chat-text-message-renderer, tbody.yt-live-chat-text-message-renderer, td.yt-live-chat-text-message-renderer, tfoot.yt-live-chat-text-message-renderer, th.yt-live-chat-text-message-renderer, thead.yt-live-chat-text-message-renderer, tr.yt-live-chat-text-message-renderer, tt.yt-live-chat-text-message-renderer, u.yt-live-chat-text-message-renderer, ul.yt-live-chat-text-message-renderer, var.yt-live-chat-text-message-renderer {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-text-message-renderer[hidden] {
+  display: none !important;
+}
+
+#timestamp.yt-live-chat-text-message-renderer {
+  display: var(--yt-live-chat-item-timestamp-display, inline);
+  margin: var(--yt-live-chat-item-timestamp-margin, 0 8px 0 0);
+  color: var(--yt-live-chat-tertiary-text-color);
+  font-size: 11px;
+}
+
+#author-photo.yt-live-chat-text-message-renderer {
+  display: block;
+  margin-right: 16px;
+  overflow: hidden;
+  border-radius: 50%;
+  -ms-flex: none;
+  -webkit-flex: none;
+  flex: none;
+}
+
+#menu-button.yt-live-chat-text-message-renderer {
+  width: 40px;
+  height: 40px;
+  padding: 8px;
+}
+
+#menu.yt-live-chat-text-message-renderer {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  right: 0;
+  transform: translateX(100px);
+}
+
+yt-live-chat-text-message-renderer:hover #menu.yt-live-chat-text-message-renderer, yt-live-chat-text-message-renderer[menu-visible] #menu.yt-live-chat-text-message-renderer {
+  transform: none;
+}
+
+yt-live-chat-text-message-renderer:focus-within #menu.yt-live-chat-text-message-renderer {
+  transform: none;
+}
+
+#inline-action-button-container.yt-live-chat-text-message-renderer {
+  position: absolute;
+  top: -4px;
+  right: 0;
+  bottom: -4px;
+  left: 0;
+  background-color: var(--yt-live-chat-moderation-mode-hover-background-color);
+  display: none;
+  -ms-flex-align: center;
+  -webkit-align-items: center;
+  align-items: center;
+  -ms-flex-pack: center;
+  -webkit-justify-content: center;
+  justify-content: center;
+}
+
+yt-live-chat-text-message-renderer[has-inline-action-buttons]:hover #inline-action-button-container.yt-live-chat-text-message-renderer {
+  display: flex;
+  -ms-flex-direction: row;
+  -webkit-flex-direction: row;
+  flex-direction: row;
+  display: var(--yt-live-chat-inline-action-button-container-display, none);
+}
+
+yt-live-chat-text-message-renderer[has-inline-action-buttons][hide-inline-action-buttons]:hover #inline-action-button-container.yt-live-chat-text-message-renderer {
+  display: none;
+}
+
+yt-live-chat-text-message-renderer[has-inline-action-buttons]:hover #menu.yt-live-chat-text-message-renderer {
+  display: var(--yt-live-chat-item-with-inline-actions-context-menu-display, block);
+}
+
+#inline-action-buttons.yt-live-chat-text-message-renderer>*.yt-live-chat-text-message-renderer, #additional-inline-action-buttons.yt-live-chat-text-message-renderer>*.yt-live-chat-text-message-renderer {
+  --yt-button-icon-size: 36px;
+  --yt-button-icon-padding: 6px;
+  color: hsl(0, 0%, 100%);
+  border-radius: 2px;
+}
+
+#inline-action-buttons.yt-live-chat-text-message-renderer>*.yt-live-chat-text-message-renderer {
+  background: hsla(0, 0%, 6.7%, .8);
+}
+
+#inline-action-buttons.yt-live-chat-text-message-renderer>.yt-live-chat-text-message-renderer:hover {
+  background: hsl(0, 0%, 6.7%);
+}
+
+#additional-inline-action-buttons.yt-live-chat-text-message-renderer>*.yt-live-chat-text-message-renderer {
+  color: var(--yt-live-chat-additional-inline-action-button-color);
+  background: var(--yt-live-chat-additional-inline-action-button-background-color);
+}
+
+#additional-inline-action-buttons.yt-live-chat-text-message-renderer>.yt-live-chat-text-message-renderer:hover {
+  background: var(--yt-live-chat-additional-inline-action-button-background-color-hover);
+}
+
+#additional-inline-action-buttons.yt-live-chat-text-message-renderer:not(:empty) {
+  margin-left: 32px;
+}
+
+#inline-action-buttons.yt-live-chat-text-message-renderer>*.yt-live-chat-text-message-renderer:not(:first-child), #additional-inline-action-buttons.yt-live-chat-text-message-renderer>*.yt-live-chat-text-message-renderer:not(:first-child) {
+  margin-left: 8px;
+}
+
+yt-live-chat-text-message-renderer {
+  position: relative;
+  font-size: 13px;
+  padding: 4px 24px;
+  overflow: hidden;
+  --yt-endpoint-color: var(--yt-live-chat-primary-text-color, hsl(0, 0%, 6.7%));
+  --yt-endpoint-hover-color: var(--yt-live-chat-primary-text-color, var(--yt-endpoint-color));
+  display: flex;
+  -ms-flex-direction: row;
+  -webkit-flex-direction: row;
+  flex-direction: row;
+  -ms-flex-align: start;
+  -webkit-align-items: flex-start;
+  align-items: flex-start;
+}
+
+yt-live-chat-text-message-renderer:hover {
+  overflow: initial;
+}
+
+yt-live-chat-text-message-renderer[author-is-owner] {
+  background-color: var(--yt-live-chat-message-highlight-background-color);
+}
+
+#content.yt-live-chat-text-message-renderer {
+  -ms-align-self: center;
+  -webkit-align-self: center;
+  align-self: center;
+  min-width: 0;
+}
+
+yt-live-chat-author-chip.yt-live-chat-text-message-renderer {
+  margin-right: 8px;
+}
+
+#message.yt-live-chat-text-message-renderer {
+  color: var(--yt-live-chat-primary-text-color, var(--yt-primary-text-color));
+  line-height: 16px;
+  overflow: hidden;
+  overflow-wrap: break-word;
+  word-wrap: break-word;
+  word-break: break-word;
+  font-style: var(--yt-live-chat-text-message-renderer-message-message-style_-_font-style);
+  opacity: var(--yt-live-chat-text-message-renderer-message-message-style_-_opacity);
+}
+
+#message.yt-live-chat-text-message-renderer .emoji.yt-live-chat-text-message-renderer {
+  width: var(--yt-live-chat-emoji-size);
+  height: var(--yt-live-chat-emoji-size);
+  margin: -1px 2px 1px 2px;
+  vertical-align: middle;
+}
+
+a.yt-live-chat-text-message-renderer {
+  display: inline;
+  text-decoration: underline;
+}
+
+#message.yt-live-chat-text-message-renderer a.yt-live-chat-text-message-renderer {
+  display: inline;
+  text-decoration: underline;
+  word-break: break-all;
+}
+
+#message.yt-live-chat-text-message-renderer a.yt-live-chat-text-message-renderer .mention.yt-live-chat-text-message-renderer {
+  text-decoration: underline;
+}
+
+#show-original.yt-live-chat-text-message-renderer {
+  margin-left: 2px;
+}
+
+#message.yt-live-chat-text-message-renderer:empty, #deleted-state.yt-live-chat-text-message-renderer:empty, #show-original.yt-live-chat-text-message-renderer:empty, yt-live-chat-text-message-renderer[show-original] #deleted-state.yt-live-chat-text-message-renderer, yt-live-chat-text-message-renderer[show-original] #show-original.yt-live-chat-text-message-renderer, yt-live-chat-text-message-renderer[is-deleted]:not([show-original]) #message.yt-live-chat-text-message-renderer {
+  display: none;
+}
+
+#menu.yt-live-chat-text-message-renderer {
+  color: var(--yt-live-chat-secondary-text-color);
+  background: linear-gradient(to right, transparent, var(--yt-live-chat-background-color, hsl(0, 0%, 100%)) 100%);
+}
+
+.mention.yt-live-chat-text-message-renderer {
+  background: var(--yt-live-chat-mention-background-color);
+  color: var(--yt-live-chat-mention-text-color);
+  padding: 2px 4px;
+  border-radius: 2px;
+}
+
+#deleted-state.yt-live-chat-text-message-renderer, #show-original.yt-live-chat-text-message-renderer, yt-live-chat-text-message-renderer[is-deleted] #message.yt-live-chat-text-message-renderer {
+  font-style: italic;
+  color: var(--yt-live-chat-deleted-message-color, rgba(0, 0, 0, 0.5));
+}
+
+yt-live-chat-text-message-renderer[show-bar]::before {
+  content: '';
+  position: absolute;
+  display: block;
+  left: 8px;
+  top: 4px;
+  bottom: 4px;
+  width: 4px;
+  box-sizing: border-box;
+  border-radius: 2px;
+}
+
+yt-live-chat-text-message-renderer[is-deleted]::before {
+  background: var(--yt-live-chat-deleted-message-bar-color, rgba(0, 0, 0, 0.5));
+}
+
+yt-live-chat-text-message-renderer[is-dimmed] #message.yt-live-chat-text-message-renderer {
+  opacity: 0.25;
+}
+
+yt-live-chat-text-message-renderer[is-dimmed]::before {
+  background: var(--yt-live-chat-error-message-color, #f44336);
+}

frontend/src/assets/css/youtube/yt-live-chat-ticker-paid-message-item-renderer.css

@@ -0,0 +1,80 @@
+canvas.yt-live-chat-ticker-paid-message-item-renderer, caption.yt-live-chat-ticker-paid-message-item-renderer, center.yt-live-chat-ticker-paid-message-item-renderer, cite.yt-live-chat-ticker-paid-message-item-renderer, code.yt-live-chat-ticker-paid-message-item-renderer, dd.yt-live-chat-ticker-paid-message-item-renderer, del.yt-live-chat-ticker-paid-message-item-renderer, dfn.yt-live-chat-ticker-paid-message-item-renderer, div.yt-live-chat-ticker-paid-message-item-renderer, dl.yt-live-chat-ticker-paid-message-item-renderer, dt.yt-live-chat-ticker-paid-message-item-renderer, em.yt-live-chat-ticker-paid-message-item-renderer, embed.yt-live-chat-ticker-paid-message-item-renderer, fieldset.yt-live-chat-ticker-paid-message-item-renderer, font.yt-live-chat-ticker-paid-message-item-renderer, form.yt-live-chat-ticker-paid-message-item-renderer, h1.yt-live-chat-ticker-paid-message-item-renderer, h2.yt-live-chat-ticker-paid-message-item-renderer, h3.yt-live-chat-ticker-paid-message-item-renderer, h4.yt-live-chat-ticker-paid-message-item-renderer, h5.yt-live-chat-ticker-paid-message-item-renderer, h6.yt-live-chat-ticker-paid-message-item-renderer, hr.yt-live-chat-ticker-paid-message-item-renderer, i.yt-live-chat-ticker-paid-message-item-renderer, iframe.yt-live-chat-ticker-paid-message-item-renderer, img.yt-live-chat-ticker-paid-message-item-renderer, ins.yt-live-chat-ticker-paid-message-item-renderer, kbd.yt-live-chat-ticker-paid-message-item-renderer, label.yt-live-chat-ticker-paid-message-item-renderer, legend.yt-live-chat-ticker-paid-message-item-renderer, li.yt-live-chat-ticker-paid-message-item-renderer, menu.yt-live-chat-ticker-paid-message-item-renderer, object.yt-live-chat-ticker-paid-message-item-renderer, ol.yt-live-chat-ticker-paid-message-item-renderer, p.yt-live-chat-ticker-paid-message-item-renderer, pre.yt-live-chat-ticker-paid-message-item-renderer, q.yt-live-chat-ticker-paid-message-item-renderer, s.yt-live-chat-ticker-paid-message-item-renderer, samp.yt-live-chat-ticker-paid-message-item-renderer, small.yt-live-chat-ticker-paid-message-item-renderer, span.yt-live-chat-ticker-paid-message-item-renderer, strike.yt-live-chat-ticker-paid-message-item-renderer, strong.yt-live-chat-ticker-paid-message-item-renderer, sub.yt-live-chat-ticker-paid-message-item-renderer, sup.yt-live-chat-ticker-paid-message-item-renderer, table.yt-live-chat-ticker-paid-message-item-renderer, tbody.yt-live-chat-ticker-paid-message-item-renderer, td.yt-live-chat-ticker-paid-message-item-renderer, tfoot.yt-live-chat-ticker-paid-message-item-renderer, th.yt-live-chat-ticker-paid-message-item-renderer, thead.yt-live-chat-ticker-paid-message-item-renderer, tr.yt-live-chat-ticker-paid-message-item-renderer, tt.yt-live-chat-ticker-paid-message-item-renderer, u.yt-live-chat-ticker-paid-message-item-renderer, ul.yt-live-chat-ticker-paid-message-item-renderer, var.yt-live-chat-ticker-paid-message-item-renderer {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-ticker-paid-message-item-renderer[hidden] {
+  display: none !important;
+}
+
+canvas.yt-live-chat-ticker-paid-message-item-renderer, caption.yt-live-chat-ticker-paid-message-item-renderer, center.yt-live-chat-ticker-paid-message-item-renderer, cite.yt-live-chat-ticker-paid-message-item-renderer, code.yt-live-chat-ticker-paid-message-item-renderer, dd.yt-live-chat-ticker-paid-message-item-renderer, del.yt-live-chat-ticker-paid-message-item-renderer, dfn.yt-live-chat-ticker-paid-message-item-renderer, div.yt-live-chat-ticker-paid-message-item-renderer, dl.yt-live-chat-ticker-paid-message-item-renderer, dt.yt-live-chat-ticker-paid-message-item-renderer, em.yt-live-chat-ticker-paid-message-item-renderer, embed.yt-live-chat-ticker-paid-message-item-renderer, fieldset.yt-live-chat-ticker-paid-message-item-renderer, font.yt-live-chat-ticker-paid-message-item-renderer, form.yt-live-chat-ticker-paid-message-item-renderer, h1.yt-live-chat-ticker-paid-message-item-renderer, h2.yt-live-chat-ticker-paid-message-item-renderer, h3.yt-live-chat-ticker-paid-message-item-renderer, h4.yt-live-chat-ticker-paid-message-item-renderer, h5.yt-live-chat-ticker-paid-message-item-renderer, h6.yt-live-chat-ticker-paid-message-item-renderer, hr.yt-live-chat-ticker-paid-message-item-renderer, i.yt-live-chat-ticker-paid-message-item-renderer, iframe.yt-live-chat-ticker-paid-message-item-renderer, img.yt-live-chat-ticker-paid-message-item-renderer, ins.yt-live-chat-ticker-paid-message-item-renderer, kbd.yt-live-chat-ticker-paid-message-item-renderer, label.yt-live-chat-ticker-paid-message-item-renderer, legend.yt-live-chat-ticker-paid-message-item-renderer, li.yt-live-chat-ticker-paid-message-item-renderer, menu.yt-live-chat-ticker-paid-message-item-renderer, object.yt-live-chat-ticker-paid-message-item-renderer, ol.yt-live-chat-ticker-paid-message-item-renderer, p.yt-live-chat-ticker-paid-message-item-renderer, pre.yt-live-chat-ticker-paid-message-item-renderer, q.yt-live-chat-ticker-paid-message-item-renderer, s.yt-live-chat-ticker-paid-message-item-renderer, samp.yt-live-chat-ticker-paid-message-item-renderer, small.yt-live-chat-ticker-paid-message-item-renderer, span.yt-live-chat-ticker-paid-message-item-renderer, strike.yt-live-chat-ticker-paid-message-item-renderer, strong.yt-live-chat-ticker-paid-message-item-renderer, sub.yt-live-chat-ticker-paid-message-item-renderer, sup.yt-live-chat-ticker-paid-message-item-renderer, table.yt-live-chat-ticker-paid-message-item-renderer, tbody.yt-live-chat-ticker-paid-message-item-renderer, td.yt-live-chat-ticker-paid-message-item-renderer, tfoot.yt-live-chat-ticker-paid-message-item-renderer, th.yt-live-chat-ticker-paid-message-item-renderer, thead.yt-live-chat-ticker-paid-message-item-renderer, tr.yt-live-chat-ticker-paid-message-item-renderer, tt.yt-live-chat-ticker-paid-message-item-renderer, u.yt-live-chat-ticker-paid-message-item-renderer, ul.yt-live-chat-ticker-paid-message-item-renderer, var.yt-live-chat-ticker-paid-message-item-renderer {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-ticker-paid-message-item-renderer[hidden] {
+  display: none !important;
+}
+
+yt-live-chat-ticker-paid-message-item-renderer {
+  display: inline-block;
+  font-size: 14px;
+  outline: none;
+  transition: width 0.2s;
+  vertical-align: top;
+  cursor: pointer;
+  -moz-user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+  user-select: none;
+}
+
+#container.yt-live-chat-ticker-paid-message-item-renderer {
+  border-radius: 999px;
+  padding: 4px;
+}
+
+yt-live-chat-ticker-paid-message-item-renderer.sliding-down #container.yt-live-chat-ticker-paid-message-item-renderer {
+  opacity: 0.5;
+  transform: translateY(44px);
+  transition: opacity 0.2s, transform 0.2s cubic-bezier(0.4, 0.0, 1, 1);
+}
+
+yt-live-chat-ticker-paid-message-item-renderer.collapsing {
+  margin-right: 0;
+  transition: margin-right 0.2s cubic-bezier(0.4, 0.0, 0.2, 1), width 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
+}
+
+yt-live-chat-ticker-paid-message-item-renderer[dimmed] {
+  opacity: 0.5;
+}
+
+yt-img-shadow.yt-live-chat-ticker-paid-message-item-renderer {
+  margin-right: -4px;
+  overflow: hidden;
+  border-radius: 50%;
+}
+
+#content.yt-live-chat-ticker-paid-message-item-renderer {
+  height: 24px;
+  display: flex;
+  -ms-flex-direction: row;
+  -webkit-flex-direction: row;
+  flex-direction: row;
+  -ms-flex-align: center;
+  -webkit-align-items: center;
+  align-items: center;
+}
+
+#text.yt-live-chat-ticker-paid-message-item-renderer {
+  margin: 0 8px;
+  font-weight: 500;
+}
+
+yt-live-chat-ticker-paid-message-item-renderer[is-deleted] #author-photo.yt-live-chat-ticker-paid-message-item-renderer {
+  display: none;
+}

frontend/src/assets/css/youtube/yt-live-chat-ticker-renderer.css

@@ -0,0 +1,65 @@
+canvas.yt-live-chat-ticker-renderer, caption.yt-live-chat-ticker-renderer, center.yt-live-chat-ticker-renderer, cite.yt-live-chat-ticker-renderer, code.yt-live-chat-ticker-renderer, dd.yt-live-chat-ticker-renderer, del.yt-live-chat-ticker-renderer, dfn.yt-live-chat-ticker-renderer, div.yt-live-chat-ticker-renderer, dl.yt-live-chat-ticker-renderer, dt.yt-live-chat-ticker-renderer, em.yt-live-chat-ticker-renderer, embed.yt-live-chat-ticker-renderer, fieldset.yt-live-chat-ticker-renderer, font.yt-live-chat-ticker-renderer, form.yt-live-chat-ticker-renderer, h1.yt-live-chat-ticker-renderer, h2.yt-live-chat-ticker-renderer, h3.yt-live-chat-ticker-renderer, h4.yt-live-chat-ticker-renderer, h5.yt-live-chat-ticker-renderer, h6.yt-live-chat-ticker-renderer, hr.yt-live-chat-ticker-renderer, i.yt-live-chat-ticker-renderer, iframe.yt-live-chat-ticker-renderer, img.yt-live-chat-ticker-renderer, ins.yt-live-chat-ticker-renderer, kbd.yt-live-chat-ticker-renderer, label.yt-live-chat-ticker-renderer, legend.yt-live-chat-ticker-renderer, li.yt-live-chat-ticker-renderer, menu.yt-live-chat-ticker-renderer, object.yt-live-chat-ticker-renderer, ol.yt-live-chat-ticker-renderer, p.yt-live-chat-ticker-renderer, pre.yt-live-chat-ticker-renderer, q.yt-live-chat-ticker-renderer, s.yt-live-chat-ticker-renderer, samp.yt-live-chat-ticker-renderer, small.yt-live-chat-ticker-renderer, span.yt-live-chat-ticker-renderer, strike.yt-live-chat-ticker-renderer, strong.yt-live-chat-ticker-renderer, sub.yt-live-chat-ticker-renderer, sup.yt-live-chat-ticker-renderer, table.yt-live-chat-ticker-renderer, tbody.yt-live-chat-ticker-renderer, td.yt-live-chat-ticker-renderer, tfoot.yt-live-chat-ticker-renderer, th.yt-live-chat-ticker-renderer, thead.yt-live-chat-ticker-renderer, tr.yt-live-chat-ticker-renderer, tt.yt-live-chat-ticker-renderer, u.yt-live-chat-ticker-renderer, ul.yt-live-chat-ticker-renderer, var.yt-live-chat-ticker-renderer {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: transparent;
+}
+
+.yt-live-chat-ticker-renderer[hidden] {
+  display: none !important;
+}
+
+yt-live-chat-ticker-renderer {
+  display: block;
+  background-color: var(--yt-live-chat-header-background-color);
+}
+
+#container.yt-live-chat-ticker-renderer {
+  position: relative;
+}
+
+#items.yt-live-chat-ticker-renderer {
+  height: 32px;
+  overflow: hidden;
+  white-space: nowrap;
+  padding: 0 24px 8px 24px;
+}
+
+#items.yt-live-chat-ticker-renderer>*.yt-live-chat-ticker-renderer {
+  margin-right: 8px;
+}
+
+#left-arrow-container.yt-live-chat-ticker-renderer {
+  background: linear-gradient(to right, var(--yt-live-chat-ticker-arrow-background) 0, var(--yt-live-chat-ticker-arrow-background) 52px, transparent 60px);
+  left: 0;
+  padding: 0 16px 0 12px;
+}
+
+#right-arrow-container.yt-live-chat-ticker-renderer {
+  background: linear-gradient(to left, var(--yt-live-chat-ticker-arrow-background) 0, var(--yt-live-chat-ticker-arrow-background) 52px, transparent 60px);
+  right: 0;
+  padding: 0 12px 0 16px;
+}
+
+#container.yt-live-chat-ticker-renderer:hover #left-arrow-container.yt-live-chat-ticker-renderer, #container.yt-live-chat-ticker-renderer:hover #right-arrow-container.yt-live-chat-ticker-renderer {
+  opacity: 1;
+}
+
+#left-arrow-container.yt-live-chat-ticker-renderer, #right-arrow-container.yt-live-chat-ticker-renderer {
+  height: 32px;
+  opacity: 0;
+  position: absolute;
+  text-align: center;
+  top: 0;
+  transition: opacity 0.3s 0.1s;
+}
+
+yt-icon.yt-live-chat-ticker-renderer {
+  background-color: #2196f3;
+  border-radius: 999px;
+  color: #fff;
+  cursor: pointer;
+  height: 24px;
+  padding: 4px;
+  width: 24px;
+}

frontend/src/assets/room.css

@@ -1,426 +0,0 @@
-yt-live-chat-text-message-renderer {
-  position: relative;
-  display: -ms-flexbox;
-  display: -webkit-flex;
-  display: flex;
-  -ms-flex-direction: row;
-  -webkit-flex-direction: row;
-  flex-direction: row;
-  -ms-flex-align: start;
-  -webkit-align-items: flex-start;
-  align-items: flex-start;
-  padding: 4px 24px;
-}
-
-yt-live-chat-text-message-renderer #content {
-  -ms-align-self: center;
-  -webkit-align-self: center;
-  align-self: center;
-  overflow: hidden;
-}
-
-yt-live-chat-text-message-renderer #timestamp {
-  display: none;
-  margin-right: 8px;
-}
-
-yt-live-chat-text-message-renderer #author-name {
-  margin-right: 8px;
-  font-weight: 500;
-}
-
-yt-live-chat-text-message-renderer #author-photo {
-  display: inline-block;
-  background-color: transparent;
-  -ms-flex: none;
-  -webkit-flex: none;
-  flex: none;
-}
-
-yt-live-chat-text-message-renderer #author-badges {
-  vertical-align: text-bottom;
-  display: -ms-inline-flexbox;
-  display: -webkit-inline-flex;
-  display: inline-flex;
-}
-
-yt-live-chat-text-message-renderer #message {
-  color: #fff;
-  font-size: 12px;
-  line-height: 16px;
-  word-wrap: break-word;
-}
-
-yt-live-chat-author-badge-renderer {
-  display: block;
-  width: 16px;
-  height: 16px;
-  background-color: currentColor;
-  margin-right: 4px;
-  border-radius: 16px;
-}
-
-yt-live-chat-legacy-paid-message-renderer {
-  position: relative;
-  overflow: hidden;
-  margin: 8px 24px;
-  padding: 8px 16px;
-  background-color: #0f9d58;
-  border-radius: 4px;
-  color: #fff;
-  font-size: 14px;
-  min-height: 40px;
-  display: -ms-flexbox;
-  display: -webkit-flex;
-  display: flex;
-  -ms-flex-direction: row;
-  -webkit-flex-direction: row;
-  flex-direction: row;
-  -ms-flex-align: center;
-  -webkit-align-items: center;
-  align-items: center;
-  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
-}
-
-yt-live-chat-legacy-paid-message-renderer #author-photo {
-  background-color: transparent;
-  margin-right: 16px;
-  overflow: hidden;
-  -ms-flex: none;
-  -webkit-flex: none;
-  flex: none;
-  -ms-align-self: flex-start;
-  -webkit-align-self: flex-start;
-  align-self: flex-start;
-}
-
-yt-live-chat-legacy-paid-message-renderer #content {
-  -ms-flex: 1 1 0.000000001px;
-  -webkit-flex: 1;
-  flex: 1;
-  -webkit-flex-basis: 0.000000001px;
-  flex-basis: 0.000000001px;
-}
-
-yt-live-chat-legacy-paid-message-renderer #event-text {
-  font-weight: 500;
-}
-
-yt-live-chat-legacy-paid-message-renderer #detail-text {
-  word-wrap: break-word;
-}
-
-yt-live-chat-paid-message-renderer {
-  position: relative;
-  border-radius: 4px;
-  margin: 8px 24px;
-  font-size: 15px;
-  display: -ms-flexbox;
-  display: -webkit-flex;
-  display: flex;
-  -ms-flex-direction: column;
-  -webkit-flex-direction: column;
-  flex-direction: column;
-  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
-}
-
-yt-live-chat-paid-message-renderer #header {
-  position: relative;
-  font-weight: 500;
-  padding: 8px 16px;
-  min-height: 20px;
-  display: -ms-flexbox;
-  display: -webkit-flex;
-  display: flex;
-  -ms-flex-direction: row;
-  -webkit-flex-direction: row;
-  flex-direction: row;
-  -ms-flex-align: center;
-  -webkit-align-items: center;
-  align-items: center;
-  border-top-left-radius: 4px;
-  border-top-right-radius: 4px;
-}
-
-yt-live-chat-paid-message-renderer #header-content {
-  display: -ms-flexbox;
-  display: -webkit-flex;
-  display: flex;
-  -ms-flex-direction: column;
-  -webkit-flex-direction: column;
-  flex-direction: column;
-  -ms-flex-pack: justify;
-  -webkit-justify-content: space-between;
-  justify-content: space-between;
-  -ms-flex: 1 1 0.000000001px;
-  -webkit-flex: 1;
-  flex: 1;
-  -webkit-flex-basis: 0.000000001px;
-  flex-basis: 0.000000001px;
-}
-
-yt-live-chat-paid-message-renderer #author-photo {
-  background-color: transparent;
-  -ms-flex: none;
-  -webkit-flex: none;
-  flex: none;
-}
-
-yt-live-chat-paid-message-renderer #author-name {
-  font-size: 14px;
-}
-
-yt-live-chat-paid-message-renderer #content {
-  padding: 4px 16px 8px 16px;
-  word-wrap: break-word;
-  word-break: break-word;
-  border-bottom-left-radius: 4px;
-  border-bottom-right-radius: 4px;
-}
-
-yt-live-chat-ticker-paid-message-item-renderer {
-  display: inline-block;
-  height: 24px;
-  border-radius: 200px;
-  padding: 4px;
-}
-
-yt-live-chat-ticker-paid-message-item-renderer #content {
-  display: -ms-flexbox;
-  display: -webkit-flex;
-  display: flex;
-  -ms-flex-direction: row;
-  -webkit-flex-direction: row;
-  flex-direction: row;
-  -ms-flex-align: center;
-  -webkit-align-items: center;
-  align-items: center;
-  margin-right: 4px;
-}
-
-yt-live-chat-ticker-paid-message-item-renderer #fake-avatar {
-  display: inline-block;
-  background-color: red;
-  width: 24px;
-  height: 24px;
-  margin-right: 4px;
-  border-radius: 24px;
-
-}
-
-/* 以下为自动生成：https://chatv2.septapus.com/ */
-
-/* @import url("https://fonts.googleapis.com/css?family=Changa%20One"); */
-/* @import url("https://fonts.googleapis.com/css?family=Imprima"); */
-@import url("https://fonts.lug.ustc.edu.cn/css?family=Changa%20One");
-@import url("https://fonts.lug.ustc.edu.cn/css?family=Imprima");
-
-/* Background colors*/
-body {
-  overflow: hidden;
-  background-color: rgba(0,0,0,0);
-}
-/* Transparent background. */
-yt-live-chat-renderer {
-  background-color: transparent !important;
-}
-yt-live-chat-text-message-renderer,
-yt-live-chat-text-message-renderer[is-highlighted] {
-  background-color: transparent !important;
-}
-
-yt-live-chat-text-message-renderer[author-type="owner"],
-yt-live-chat-text-message-renderer[author-type="owner"][is-highlighted] {
-  background-color: transparent !important;
-}
-
-yt-live-chat-text-message-renderer[author-type="moderator"],
-yt-live-chat-text-message-renderer[author-type="moderator"][is-highlighted] {
-  background-color: transparent !important;
-}
-
-yt-live-chat-text-message-renderer[author-type="member"],
-yt-live-chat-text-message-renderer[author-type="member"][is-highlighted] {
-  background-color: transparent !important;
-}
-
-
-yt-live-chat-author-chip #author-name {
-  background-color: transparent !important;
-}
-/* Outlines */
-yt-live-chat-renderer * {
-  text-shadow: -2px -2px #000000,-2px -1px #000000,-2px 0px #000000,-2px 1px #000000,-2px 2px #000000,-1px -2px #000000,-1px -1px #000000,-1px 0px #000000,-1px 1px #000000,-1px 2px #000000,0px -2px #000000,0px -1px #000000,0px 0px #000000,0px 1px #000000,0px 2px #000000,1px -2px #000000,1px -1px #000000,1px 0px #000000,1px 1px #000000,1px 2px #000000,2px -2px #000000,2px -1px #000000,2px 0px #000000,2px 1px #000000,2px 2px #000000;
-  font-family: "Imprima";
-  font-size: 18px !important;
-  line-height: 18px !important;
-}
-
-yt-live-chat-text-message-renderer #content,
-yt-live-chat-legacy-paid-message-renderer #content {
-  overflow: initial !important;
-}
-
-/* Hide scrollbar. */
-yt-live-chat-item-list-renderer #items{
-  overflow: hidden !important;
-}
-
-yt-live-chat-item-list-renderer #item-scroller{
-  overflow: hidden !important;
-}
-
-/* Hide header and input. */
-yt-live-chat-header-renderer,
-yt-live-chat-message-input-renderer {
-  display: none !important;
-}
-
-/* Reduce side padding. */
-yt-live-chat-text-message-renderer,
-yt-live-chat-legacy-paid-message-renderer {
-    padding-left: 4px !important;
-  padding-right: 4px !important;
-}
-
-yt-live-chat-paid-message-renderer #header {
-    padding-left: 4px !important;
-  padding-right: 4px !important;
-}
-
-/* Avatars. */
-yt-live-chat-text-message-renderer #author-photo,
-yt-live-chat-paid-message-renderer #author-photo,
-yt-live-chat-legacy-paid-message-renderer #author-photo {
-  
-  width: 24px !important;
-  height: 24px !important;
-  border-radius: 24px !important;
-  margin-right: 6px !important;
-  background-size: cover;
-}
-
-/* Hide badges. */
-yt-live-chat-text-message-renderer #author-badges {
-  display: none !important;
-  vertical-align: text-top !important;
-}
-
-/* Timestamps. */
-yt-live-chat-text-message-renderer #timestamp {
-  
-  color: #999999 !important;
-  font-family: "Imprima";
-  font-size: 16px !important;
-  line-height: 16px !important;
-}
-
-/* Badges. */
-yt-live-chat-text-message-renderer #author-name[type="owner"],
-yt-live-chat-text-message-renderer yt-live-chat-author-badge-renderer[type="owner"] {
-  color: #ffd600 !important;
-}
-
-yt-live-chat-text-message-renderer #author-name[type="moderator"],
-yt-live-chat-text-message-renderer yt-live-chat-author-badge-renderer[type="moderator"] {
-  color: #5e84f1 !important;
-}
-
-yt-live-chat-text-message-renderer #author-name[type="member"],
-yt-live-chat-text-message-renderer yt-live-chat-author-badge-renderer[type="member"] {
-  color: #0f9d58 !important;
-}
-
-/* Channel names. */
-yt-live-chat-text-message-renderer #author-name {
-  color: #cccccc !important;
-  font-family: "Changa One";
-  font-size: 20px !important;
-  line-height: 20px !important;
-}
-
-yt-live-chat-text-message-renderer #author-name::after {
-  content: ":";
-  margin-left: 2px;
-}
-
-/* Messages. */
-yt-live-chat-text-message-renderer #message,
-yt-live-chat-text-message-renderer #message * {
-  color: #ffffff !important;
-  font-family: "Imprima";
-  font-size: 18px !important;
-  line-height: 18px !important;
-}
-
-
-/* SuperChat/Fan Funding Messages. */
-yt-live-chat-paid-message-renderer #author-name,
-yt-live-chat-paid-message-renderer #author-name *,
-yt-live-chat-legacy-paid-message-renderer #event-text,
-yt-live-chat-legacy-paid-message-renderer #event-text * {
-  color: #ffffff !important;
-  font-family: "Changa One";
-  font-size: 20px !important;
-  line-height: 20px !important;
-}
-
-yt-live-chat-paid-message-renderer #purchase-amount,
-yt-live-chat-paid-message-renderer #purchase-amount *,
-yt-live-chat-legacy-paid-message-renderer #detail-text,
-yt-live-chat-legacy-paid-message-renderer #detail-text * {
-  color: #ffffff !important;
-  font-family: "Imprima";
-  font-size: 18px !important;
-  line-height: 18px !important;
-}
-
-yt-live-chat-paid-message-renderer #content,
-yt-live-chat-paid-message-renderer #content * {
-  color: #ffffff !important;
-  font-family: "Imprima";
-  font-size: 18px !important;
-  line-height: 18px !important;
-}
-
-yt-live-chat-paid-message-renderer {
-  margin: 4px 0 !important;
-}
-
-yt-live-chat-legacy-paid-message-renderer {
-  background-color: #0f9d58 !important;
-  margin: 4px 0 !important;
-}
-
-yt-live-chat-text-message-renderer a,
-yt-live-chat-legacy-paid-message-renderer a {
-  text-decoration: none !important;
-}
-
-yt-live-chat-text-message-renderer[is-deleted],
-yt-live-chat-legacy-paid-message-renderer[is-deleted] {
-  display: none !important;
-}
-
-yt-live-chat-ticker-renderer {
-  background-color: transparent !important;
-  box-shadow: none !important;
-}
-yt-live-chat-ticker-renderer {
-  display: none !important;
-}
-
-
-yt-live-chat-ticker-paid-message-item-renderer,
-yt-live-chat-ticker-paid-message-item-renderer *,
-yt-live-chat-ticker-sponsor-item-renderer,
-yt-live-chat-ticker-sponsor-item-renderer * {
-  color: #ffffff !important;
-  font-family: "Imprima";
-}
-
-yt-live-chat-mode-change-message-renderer, 
-yt-live-chat-viewer-engagement-message-renderer, 
-yt-live-chat-restricted-participation-renderer {
-  display: none !important;
-}

frontend/src/components/ChatRenderer/AuthorBadge.vue

@@ -0,0 +1,50 @@
+<template>
+  <yt-live-chat-author-badge-renderer :type="authorTypeText" v-if="isAdmin || privilegeType > 0">
+    <el-tooltip :content="readableAuthorTypeText" placement="top">
+      <div id="image" class="style-scope yt-live-chat-author-badge-renderer">
+        <yt-icon v-if="isAdmin" class="style-scope yt-live-chat-author-badge-renderer">
+          <svg viewBox="0 0 16 16" class="style-scope yt-icon" preserveAspectRatio="xMidYMid meet" focusable="false"
+            style="pointer-events: none; display: block; width: 100%; height: 100%;"
+          >
+            <g class="style-scope yt-icon">
+              <path class="style-scope yt-icon"
+                d="M9.64589146,7.05569719 C9.83346524,6.562372 9.93617022,6.02722257 9.93617022,5.46808511 C9.93617022,3.00042984 7.93574038,1 5.46808511,1 C4.90894765,1 4.37379823,1.10270499 3.88047304,1.29027875 L6.95744681,4.36725249 L4.36725255,6.95744681 L1.29027875,3.88047305 C1.10270498,4.37379824 1,4.90894766 1,5.46808511 C1,7.93574038 3.00042984,9.93617022 5.46808511,9.93617022 C6.02722256,9.93617022 6.56237198,9.83346524 7.05569716,9.64589147 L12.4098057,15 L15,12.4098057 L9.64589146,7.05569719 Z"
+              ></path>
+            </g>
+          </svg>
+        </yt-icon>
+        <img v-else :src="`/static/img/icons/guard-level-${privilegeType}.png`"
+          class="style-scope yt-live-chat-author-badge-renderer" :alt="readableAuthorTypeText">
+      </div>
+    </el-tooltip>
+  </yt-live-chat-author-badge-renderer>
+</template>
+
+<script>
+import * as constants from './constants'
+
+export default {
+  name: 'AuthorBadge',
+  props: {
+    isAdmin: Boolean,
+    privilegeType: Number
+  },
+  computed: {
+    authorTypeText() {
+      if (this.isAdmin) {
+        return 'moderator'
+      }
+      return this.privilegeType > 0 ? 'member' : ''
+    },
+    readableAuthorTypeText() {
+      if (this.isAdmin) {
+        return '管理员'
+      }
+      return constants.GUARD_LEVEL_TO_TEXT[this.privilegeType]
+    }
+  }
+}
+</script>
+
+<style src="@/assets/css/youtube/yt-live-chat-author-badge-renderer.css"></style>
+<style src="@/assets/css/youtube/yt-icon.css"></style>

frontend/src/components/ChatRenderer/ImgShadow.vue

@@ -0,0 +1,37 @@
+<template>
+  <yt-img-shadow class="no-transition" :height="height" :width="width" style="background-color: transparent;" loaded>
+    <img id="img" class="style-scope yt-img-shadow" alt="" :height="height" :width="width" :src="showImgUrl" @error="onLoadError">
+  </yt-img-shadow>
+</template>
+
+<script>
+import {DEFAULT_AVATAR_URL} from '@/api/chat/avatar'
+
+export default {
+  name: 'ImgShadow',
+  props: {
+    imgUrl: String,
+    height: String,
+    width: String
+  },
+  data() {
+    return {
+      showImgUrl: this.imgUrl
+    }
+  },
+  watch: {
+    imgUrl(val) {
+      this.showImgUrl = val
+    }
+  },
+  methods: {
+    onLoadError() {
+      if (this.showImgUrl !== DEFAULT_AVATAR_URL) {
+        this.showImgUrl = DEFAULT_AVATAR_URL
+      }
+    }
+  }
+}
+</script>
+
+<style src="@/assets/css/youtube/yt-img-shadow.css"></style>

frontend/src/components/ChatRenderer/MembershipItem.vue

@@ -0,0 +1,59 @@
+<template>
+  <yt-live-chat-membership-item-renderer class="style-scope yt-live-chat-item-list-renderer" show-only-header>
+    <div id="card" class="style-scope yt-live-chat-membership-item-renderer">
+      <div id="header" class="style-scope yt-live-chat-membership-item-renderer">
+        <img-shadow id="author-photo" height="40" width="40" class="style-scope yt-live-chat-membership-item-renderer"
+          :imgUrl="avatarUrl"
+        ></img-shadow>
+        <div id="header-content" class="style-scope yt-live-chat-membership-item-renderer">
+          <div id="header-content-primary-column" class="style-scope yt-live-chat-membership-item-renderer">
+            <div id="header-content-inner-column" class="style-scope yt-live-chat-membership-item-renderer">
+              <yt-live-chat-author-chip class="style-scope yt-live-chat-membership-item-renderer">
+                <span id="author-name" dir="auto" class="member style-scope yt-live-chat-author-chip">{{
+                  authorName
+                  }}<!-- 这里是已验证勋章 -->
+                  <span id="chip-badges" class="style-scope yt-live-chat-author-chip"></span>
+                </span>
+                <span id="chat-badges" class="style-scope yt-live-chat-author-chip">
+                  <author-badge class="style-scope yt-live-chat-author-chip"
+                    :isAdmin="false" :privilegeType="privilegeType"
+                  ></author-badge>
+                </span>
+              </yt-live-chat-author-chip>
+            </div>
+            <div id="header-subtext" class="style-scope yt-live-chat-membership-item-renderer">{{title}}</div>
+          </div>
+          <div id="timestamp" class="style-scope yt-live-chat-membership-item-renderer">{{timeText}}</div>
+        </div>
+      </div>
+    </div>
+  </yt-live-chat-membership-item-renderer>
+</template>
+
+<script>
+import ImgShadow from './ImgShadow.vue'
+import AuthorBadge from './AuthorBadge.vue'
+import * as utils from '@/utils'
+
+export default {
+  name: 'MembershipItem',
+  components: {
+    ImgShadow,
+    AuthorBadge
+  },
+  props: {
+    avatarUrl: String,
+    authorName: String,
+    privilegeType: Number,
+    title: String,
+    time: Date
+  },
+  computed: {
+    timeText() {
+      return utils.getTimeTextHourMin(this.time)
+    }
+  }
+}
+</script>
+
+<style src="@/assets/css/youtube/yt-live-chat-membership-item-renderer.css"></style>

frontend/src/components/ChatRenderer/PaidMessage.vue

@@ -0,0 +1,65 @@
+<template>
+  <yt-live-chat-paid-message-renderer class="style-scope yt-live-chat-item-list-renderer" allow-animations
+    :show-only-header="!content" :style="{
+      '--yt-live-chat-paid-message-primary-color': color.contentBg,
+      '--yt-live-chat-paid-message-secondary-color': color.headerBg,
+      '--yt-live-chat-paid-message-header-color': color.header,
+      '--yt-live-chat-paid-message-author-name-color': color.authorName,
+      '--yt-live-chat-paid-message-timestamp-color': color.time,
+      '--yt-live-chat-paid-message-color': color.content
+    }"
+  >
+    <div id="card" class="style-scope yt-live-chat-paid-message-renderer">
+      <div id="header" class="style-scope yt-live-chat-paid-message-renderer">
+        <img-shadow id="author-photo" height="40" width="40" class="style-scope yt-live-chat-paid-message-renderer"
+          :imgUrl="avatarUrl"
+        ></img-shadow>
+        <div id="header-content" class="style-scope yt-live-chat-paid-message-renderer">
+          <div id="header-content-primary-column" class="style-scope yt-live-chat-paid-message-renderer">
+            <div id="author-name" class="style-scope yt-live-chat-paid-message-renderer">{{authorName}}</div>
+            <div id="purchase-amount" class="style-scope yt-live-chat-paid-message-renderer">{{priceText}}</div>
+          </div>
+          <span id="timestamp" class="style-scope yt-live-chat-paid-message-renderer">{{timeText}}</span>
+        </div>
+      </div>
+      <div id="content" class="style-scope yt-live-chat-paid-message-renderer">
+        <div id="message" dir="auto" class="style-scope yt-live-chat-paid-message-renderer">{{
+          content
+        }}</div>
+      </div>
+    </div>
+  </yt-live-chat-paid-message-renderer>
+</template>
+
+<script>
+import ImgShadow from './ImgShadow.vue'
+import * as constants from './constants'
+import * as utils from '@/utils'
+
+export default {
+  name: 'PaidMessage',
+  components: {
+    ImgShadow
+  },
+  props: {
+    avatarUrl: String,
+    authorName: String,
+    price: Number, // 价格，人民币
+    time: Date,
+    content: String
+  },
+  computed: {
+    color() {
+      return constants.getPriceConfig(this.price).colors
+    },
+    priceText() {
+      return 'CN¥' + utils.formatCurrency(this.price)
+    },
+    timeText() {
+      return utils.getTimeTextHourMin(this.time)
+    }
+  }
+}
+</script>
+
+<style src="@/assets/css/youtube/yt-live-chat-paid-message-renderer.css"></style>

frontend/src/components/ChatRenderer/TextMessage.vue

@@ -0,0 +1,98 @@
+<template>
+  <yt-live-chat-text-message-renderer :author-type="authorTypeText">
+    <img-shadow id="author-photo" height="24" width="24" class="style-scope yt-live-chat-text-message-renderer"
+      :imgUrl="avatarUrl"
+    ></img-shadow>
+    <div id="content" class="style-scope yt-live-chat-text-message-renderer">
+      <span id="timestamp" class="style-scope yt-live-chat-text-message-renderer">{{timeText}}</span>
+      <yt-live-chat-author-chip class="style-scope yt-live-chat-text-message-renderer">
+        <span id="author-name" dir="auto" class="style-scope yt-live-chat-author-chip" :type="authorTypeText">{{
+          authorName
+          }}<!-- 这里是已验证勋章 -->
+          <span id="chip-badges" class="style-scope yt-live-chat-author-chip"></span>
+        </span>
+        <span id="chat-badges" class="style-scope yt-live-chat-author-chip">
+          <author-badge class="style-scope yt-live-chat-author-chip"
+            :isAdmin="authorType === 2" :privilegeType="privilegeType"
+          ></author-badge>
+        </span>
+      </yt-live-chat-author-chip>
+      <span id="message" class="style-scope yt-live-chat-text-message-renderer">{{
+        content
+        }}<el-badge :value="repeated" :max="99" v-show="repeated > 1" class="style-scope yt-live-chat-text-message-renderer"
+          :style="{'--repeated-mark-color': repeatedMarkColor}"
+        ></el-badge>
+      </span>
+    </div>
+  </yt-live-chat-text-message-renderer>
+</template>
+
+<script>
+import ImgShadow from './ImgShadow.vue'
+import AuthorBadge from './AuthorBadge.vue'
+import * as constants from './constants'
+import * as utils from '@/utils'
+
+// HSL
+const REPEATED_MARK_COLOR_START = [210, 100.0, 62.5]
+const REPEATED_MARK_COLOR_END = [360, 87.3, 69.2]
+
+export default {
+  name: 'TextMessage',
+  components: {
+    ImgShadow,
+    AuthorBadge
+  },
+  props: {
+    avatarUrl: String,
+    time: Date,
+    authorName: String,
+    authorType: Number,
+    content: String,
+    privilegeType: Number,
+    repeated: Number
+  },
+  computed: {
+    timeText() {
+      return utils.getTimeTextHourMin(this.time)
+    },
+    authorTypeText() {
+      return constants.AUTHOR_TYPE_TO_TEXT[this.authorType]
+    },
+    repeatedMarkColor() {
+      let color
+      if (this.repeated <= 2) {
+        color = REPEATED_MARK_COLOR_START
+      } else if (this.repeated >= 10) {
+        color = REPEATED_MARK_COLOR_END
+      } else {
+        color = [0, 0, 0]
+        let t = (this.repeated - 2) / (10 - 2)
+        for (let i = 0; i < 3; i++) {
+          color[i] = REPEATED_MARK_COLOR_START[i] + (REPEATED_MARK_COLOR_END[i] - REPEATED_MARK_COLOR_START[i]) * t
+        }
+      }
+      return `hsl(${color[0]}, ${color[1]}%, ${color[2]}%)`
+    }
+  }
+}
+</script>
+
+<style>
+yt-live-chat-text-message-renderer>#content>#message>.el-badge {
+  margin-left: 10px;
+}
+
+yt-live-chat-text-message-renderer>#content>#message>.el-badge .el-badge__content {
+  font-size: 12px !important;
+  line-height: 18px !important;
+  text-shadow: none !important;
+  font-family: sans-serif !important;
+  color: #FFF !important;
+  background-color: var(--repeated-mark-color) !important;
+  border: none;
+}
+</style>
+
+<style src="@/assets/css/youtube/yt-live-chat-text-message-renderer.css"></style>
+<style src="@/assets/css/youtube/yt-live-chat-author-chip.css"></style>

frontend/src/components/ChatRenderer/Ticker.vue

@@ -0,0 +1,169 @@
+<template>
+  <yt-live-chat-ticker-renderer :hidden="showMessages.length === 0">
+    <div id="container" dir="ltr" class="style-scope yt-live-chat-ticker-renderer">
+      <div id="items" class="style-scope yt-live-chat-ticker-renderer">
+        <yt-live-chat-ticker-paid-message-item-renderer v-for="message in showMessages" :key="message.raw.id"
+          tabindex="0" class="style-scope yt-live-chat-ticker-renderer" style="overflow: hidden;"
+          @click="onItemClick(message.raw)"
+        >
+          <div id="container" dir="ltr" class="style-scope yt-live-chat-ticker-paid-message-item-renderer" :style="{
+            background: message.bgColor,
+          }">
+            <div id="content" class="style-scope yt-live-chat-ticker-paid-message-item-renderer" :style="{
+              color: message.color
+            }">
+              <img-shadow id="author-photo" height="24" width="24" class="style-scope yt-live-chat-ticker-paid-message-item-renderer"
+                :imgUrl="message.raw.avatarUrl"
+              ></img-shadow>
+              <span id="text" dir="ltr" class="style-scope yt-live-chat-ticker-paid-message-item-renderer">{{message.text}}</span>
+            </div>
+          </div>
+        </yt-live-chat-ticker-paid-message-item-renderer>
+      </div>
+    </div>
+    <template v-if="pinnedMessage">
+      <membership-item :key="pinnedMessage.id" v-if="pinnedMessage.type === MESSAGE_TYPE_MEMBER"
+        class="style-scope yt-live-chat-ticker-renderer"
+        :avatarUrl="pinnedMessage.avatarUrl" :authorName="pinnedMessage.authorName" :privilegeType="pinnedMessage.privilegeType"
+        :title="pinnedMessage.title" :time="pinnedMessage.time"
+      ></membership-item>
+      <paid-message :key="pinnedMessage.id" v-else
+        class="style-scope yt-live-chat-ticker-renderer"
+        :price="pinnedMessage.price" :avatarUrl="pinnedMessage.avatarUrl" :authorName="pinnedMessage.authorName"
+        :time="pinnedMessage.time" :content="pinnedMessageShowContent"
+      ></paid-message>
+    </template>
+  </yt-live-chat-ticker-renderer>
+</template>
+
+<script>
+import * as chatConfig from '@/api/chatConfig'
+import {formatCurrency} from '@/utils'
+import ImgShadow from './ImgShadow.vue'
+import MembershipItem from './MembershipItem.vue'
+import PaidMessage from './PaidMessage.vue'
+import * as constants from './constants'
+
+export default {
+  name: 'Ticker',
+  components: {
+    ImgShadow,
+    MembershipItem,
+    PaidMessage
+  },
+  props: {
+    messages: Array,
+    showGiftName: {
+      type: Boolean,
+      default: chatConfig.DEFAULT_CONFIG.showGiftName
+    }
+  },
+  data() {
+    return {
+      MESSAGE_TYPE_MEMBER: constants.MESSAGE_TYPE_MEMBER,
+
+      curTime: new Date(),
+      updateTimerId: window.setInterval(this.updateProgress, 1000),
+      pinnedMessage: null
+    }
+  },
+  computed: {
+    showMessages() {
+      let res = []
+      for (let message of this.messages) {
+        if (!this.needToShow(message)) {
+          continue
+        }
+        res.push({
+          raw: message,
+          bgColor: this.getBgColor(message),
+          color: this.getColor(message),
+          text: this.getText(message)
+        })
+      }
+      return res
+    },
+    pinnedMessageShowContent() {
+      if (!this.pinnedMessage) {
+        return ''
+      }
+      if (this.pinnedMessage.type === constants.MESSAGE_TYPE_GIFT) {
+        return constants.getGiftShowContent(this.pinnedMessage, this.showGiftName)
+      } else {
+        return constants.getShowContent(this.pinnedMessage)
+      }
+    }
+  },
+  beforeDestroy() {
+    window.clearInterval(this.updateTimerId)
+  },
+  methods: {
+    needToShow(message) {
+      let pinTime = this.getPinTime(message)
+      return (new Date() - message.addTime) / (60 * 1000) < pinTime
+    },
+    getBgColor(message) {
+      let color1, color2
+      if (message.type === constants.MESSAGE_TYPE_MEMBER) {
+        color1 = 'rgba(15,157,88,1)'
+        color2 = 'rgba(11,128,67,1)'
+      } else {
+        let config = constants.getPriceConfig(message.price)
+        color1 = config.colors.contentBg
+        color2 = config.colors.headerBg
+      }
+      let pinTime = this.getPinTime(message)
+      let progress = (1 - (this.curTime - message.addTime) / (60 * 1000) / pinTime) * 100
+      if (progress < 0) {
+        progress = 0
+      } else if (progress > 100) {
+        progress = 100
+      }
+      return `linear-gradient(90deg, ${color1}, ${color1} ${progress}%, ${color2} ${progress}%, ${color2})`
+    },
+    getColor(message) {
+      if (message.type === constants.MESSAGE_TYPE_MEMBER) {
+        return 'rgb(255,255,255)'
+      }
+      return constants.getPriceConfig(message.price).colors.header
+    },
+    getText(message) {
+      if (message.type === constants.MESSAGE_TYPE_MEMBER) {
+        return 'Member'
+      }
+      return 'CN¥' + formatCurrency(message.price)
+    },
+    getPinTime(message) {
+      if (message.type === constants.MESSAGE_TYPE_MEMBER) {
+        return 2
+      }
+      return constants.getPriceConfig(message.price).pinTime
+    },
+    updateProgress() {
+      this.curTime = new Date()
+      for (let i = 0; i < this.messages.length;) {
+        let message = this.messages[i]
+        let pinTime = this.getPinTime(message)
+        if ((this.curTime - message.addTime) / (60 * 1000) >= pinTime) {
+          if (this.pinnedMessage == message) {
+            this.pinnedMessage = null
+          }
+          this.messages.splice(i, 1)
+        } else {
+          i++
+        }
+      }
+    },
+    onItemClick(message) {
+      if (this.pinnedMessage == message) {
+        this.pinnedMessage = null
+      } else {
+        this.pinnedMessage = message
+      }
+    }
+  }
+}
+</script>
+
+<style src="@/assets/css/youtube/yt-live-chat-ticker-renderer.css"></style>
+<style src="@/assets/css/youtube/yt-live-chat-ticker-paid-message-item-renderer.css"></style>

frontend/src/components/ChatRenderer/constants.js

@@ -0,0 +1,137 @@
+export const AUTHRO_TYPE_NORMAL = 0
+export const AUTHRO_TYPE_MEMBER = 1
+export const AUTHRO_TYPE_ADMIN = 2
+export const AUTHRO_TYPE_OWNER = 3
+
+export const AUTHOR_TYPE_TO_TEXT = [
+  '',
+  'member', // 舰队
+  'moderator', // 房管
+  'owner' // 主播
+]
+
+export const GUARD_LEVEL_TO_TEXT = [
+  '',
+  '总督',
+  '提督',
+  '舰长'
+]
+
+export const MESSAGE_TYPE_TEXT = 0
+export const MESSAGE_TYPE_GIFT = 1
+export const MESSAGE_TYPE_MEMBER = 2
+export const MESSAGE_TYPE_SUPER_CHAT = 3
+export const MESSAGE_TYPE_DEL = 4
+export const MESSAGE_TYPE_UPDATE = 5
+
+// 美元 -> 人民币 汇率
+const EXCHANGE_RATE = 7
+export const PRICE_CONFIGS = [
+  { // $100红
+    price: 100 * EXCHANGE_RATE,
+    colors: {
+      contentBg: 'rgba(230,33,23,1)',
+      headerBg: 'rgba(208,0,0,1)',
+      header: 'rgba(255,255,255,1)',
+      authorName: 'rgba(255,255,255,0.701961)',
+      time: 'rgba(255,255,255,0.501961)',
+      content: 'rgba(255,255,255,1)'
+    },
+    pinTime: 60
+  },
+  { // $50品红
+    price: 50 * EXCHANGE_RATE,
+    colors: {
+      contentBg: 'rgba(233,30,99,1)',
+      headerBg: 'rgba(194,24,91,1)',
+      header: 'rgba(255,255,255,1)',
+      authorName: 'rgba(255,255,255,0.701961)',
+      time: 'rgba(255,255,255,0.501961)',
+      content: 'rgba(255,255,255,1)'
+    },
+    pinTime: 30
+  },
+  { // $20橙
+    price: 20 * EXCHANGE_RATE,
+    colors: {
+      contentBg: 'rgba(245,124,0,1)',
+      headerBg: 'rgba(230,81,0,1)',
+      header: 'rgba(255,255,255,0.87451)',
+      authorName: 'rgba(255,255,255,0.701961)',
+      time: 'rgba(255,255,255,0.501961)',
+      content: 'rgba(255,255,255,0.87451)'
+    },
+    pinTime: 10
+  },
+  { // $10黄
+    price: 10 * EXCHANGE_RATE,
+    colors: {
+      contentBg: 'rgba(255,202,40,1)',
+      headerBg: 'rgba(255,179,0,1)',
+      header: 'rgba(0,0,0,0.87451)',
+      authorName: 'rgba(0,0,0,0.541176)',
+      time: 'rgba(0,0,0,0.501961)',
+      content: 'rgba(0,0,0,0.87451)'
+    },
+    pinTime: 5
+  },
+  { // $5绿
+    price: 5 * EXCHANGE_RATE,
+    colors: {
+      contentBg: 'rgba(29,233,182,1)',
+      headerBg: 'rgba(0,191,165,1)',
+      header: 'rgba(0,0,0,1)',
+      authorName: 'rgba(0,0,0,0.541176)',
+      time: 'rgba(0,0,0,0.501961)',
+      content: 'rgba(0,0,0,1)'
+    },
+    pinTime: 2
+  },
+  { // $2浅蓝
+    price: 2 * EXCHANGE_RATE,
+    colors: {
+      contentBg: 'rgba(0,229,255,1)',
+      headerBg: 'rgba(0,184,212,1)',
+      header: 'rgba(0,0,0,1)',
+      authorName: 'rgba(0,0,0,0.701961)',
+      time: 'rgba(0,0,0,0.501961)',
+      content: 'rgba(0,0,0,1)'
+    },
+    pinTime: 0
+  },
+  { // $1蓝
+    price: 1 * EXCHANGE_RATE,
+    colors: {
+      contentBg: 'rgba(30,136,229,1)',
+      headerBg: 'rgba(21,101,192,1)',
+      header: 'rgba(255,255,255,1)',
+      authorName: 'rgba(255,255,255,0.701961)',
+      time: 'rgba(255,255,255,0.501961)',
+      content: 'rgba(255,255,255,1)'
+    },
+    pinTime: 0
+  }
+]
+
+export function getPriceConfig (price) {
+  for (const config of PRICE_CONFIGS) {
+    if (price >= config.price) {
+      return config
+    }
+  }
+  return PRICE_CONFIGS[PRICE_CONFIGS.length - 1]
+}
+
+export function getShowContent(message) {
+  if (message.translation) {
+    return `${message.content}（${message.translation}）`
+  }
+  return message.content
+}
+
+export function getGiftShowContent(message, showGiftName) {
+  if (!showGiftName) {
+    return ''
+  }
+  return `Sent ${message.giftName}x${message.num}`
+}

frontend/src/components/ChatRenderer/index.vue

@@ -0,0 +1,539 @@
+<template>
+  <yt-live-chat-renderer class="style-scope yt-live-chat-app" style="--scrollbar-width:11px;" hide-timestamps
+    @mousemove="refreshCantScrollStartTime"
+  >
+    <ticker class="style-scope yt-live-chat-renderer" :messages="paidMessages" :showGiftName="showGiftName"></ticker>
+    <yt-live-chat-item-list-renderer class="style-scope yt-live-chat-renderer" allow-scroll>
+      <div ref="scroller" id="item-scroller" class="style-scope yt-live-chat-item-list-renderer animated" @scroll="onScroll">
+        <div ref="itemOffset" id="item-offset" class="style-scope yt-live-chat-item-list-renderer" style="height: 0px;">
+          <div ref="items" id="items" class="style-scope yt-live-chat-item-list-renderer" style="overflow: hidden"
+            :style="{transform: `translateY(${Math.floor(scrollPixelsRemaining)}px)`}"
+          >
+            <template v-for="message in messages">
+              <text-message :key="message.id" v-if="message.type === MESSAGE_TYPE_TEXT"
+                class="style-scope yt-live-chat-item-list-renderer"
+                :avatarUrl="message.avatarUrl" :time="message.time" :authorName="message.authorName"
+                :authorType="message.authorType" :content="getShowContent(message)" :privilegeType="message.privilegeType"
+                :repeated="message.repeated"
+              ></text-message>
+              <paid-message :key="message.id" v-else-if="message.type === MESSAGE_TYPE_GIFT"
+                class="style-scope yt-live-chat-item-list-renderer"
+                :price="message.price" :avatarUrl="message.avatarUrl" :authorName="message.authorName"
+                :time="message.time" :content="getGiftShowContent(message)"
+              ></paid-message>
+              <membership-item :key="message.id" v-else-if="message.type === MESSAGE_TYPE_MEMBER"
+                class="style-scope yt-live-chat-item-list-renderer"
+                :avatarUrl="message.avatarUrl" :authorName="message.authorName" :privilegeType="message.privilegeType"
+                :title="message.title" :time="message.time"
+              ></membership-item>
+              <paid-message :key="message.id" v-else-if="message.type === MESSAGE_TYPE_SUPER_CHAT"
+                class="style-scope yt-live-chat-item-list-renderer"
+                :price="message.price" :avatarUrl="message.avatarUrl" :authorName="message.authorName"
+                :time="message.time" :content="getShowContent(message)"
+              ></paid-message>
+            </template>
+          </div>
+        </div>
+      </div>
+    </yt-live-chat-item-list-renderer>
+  </yt-live-chat-renderer>
+</template>
+
+<script>
+import * as chatConfig from '@/api/chatConfig'
+import Ticker from './Ticker.vue'
+import TextMessage from './TextMessage.vue'
+import MembershipItem from './MembershipItem.vue'
+import PaidMessage from './PaidMessage.vue'
+import * as constants from './constants'
+
+const CHAT_SMOOTH_ANIMATION_TIME_MS = 84
+const SCROLLED_TO_BOTTOM_EPSILON = 15
+
+export default {
+  name: 'ChatRenderer',
+  components: {
+    Ticker,
+    TextMessage,
+    MembershipItem,
+    PaidMessage
+  },
+  props: {
+    css: String,
+    maxNumber: {
+      type: Number,
+      default: chatConfig.DEFAULT_CONFIG.maxNumber
+    },
+    showGiftName: {
+      type: Boolean,
+      default: chatConfig.DEFAULT_CONFIG.showGiftName
+    }
+  },
+  data() {
+    let styleElement = document.createElement('style')
+    document.head.appendChild(styleElement)
+    return {
+      MESSAGE_TYPE_TEXT: constants.MESSAGE_TYPE_TEXT,
+      MESSAGE_TYPE_GIFT: constants.MESSAGE_TYPE_GIFT,
+      MESSAGE_TYPE_MEMBER: constants.MESSAGE_TYPE_MEMBER,
+      MESSAGE_TYPE_SUPER_CHAT: constants.MESSAGE_TYPE_SUPER_CHAT,
+
+      styleElement,
+      messages: [],                        // 显示的消息
+      paidMessages: [],                    // 固定在上方的消息
+
+      smoothedMessageQueue: [],            // 平滑消息队列，由外部调用addMessages等方法添加
+      emitSmoothedMessageTimerId: null,    // 消费平滑消息队列的定时器ID
+      enqueueIntervals: [],                // 最近进队列的时间间隔，用来估计下次进队列的时间
+      lastEnqueueTime: null,               // 上次进队列的时间
+      estimatedEnqueueInterval: null,      // 估计的下次进队列时间间隔
+
+      messagesBuffer: [],                  // 暂时未显示的消息，当不能自动滚动时会积压在这
+      preinsertHeight: 0,                  // 插入新消息之前items的高度
+      isSmoothed: true,                    // 是否平滑滚动，当消息太快时不平滑滚动
+      chatRateMs: 1000,                    // 用来计算消息速度
+      scrollPixelsRemaining: 0,            // 平滑滚动剩余像素
+      scrollTimeRemainingMs: 0,            // 平滑滚动剩余时间
+      lastSmoothChatMessageAddMs: null,    // 上次showNewMessages时间
+      smoothScrollRafHandle: null,         // 平滑滚动requestAnimationFrame句柄
+      lastSmoothScrollUpdate: null,        // 平滑滚动上一帧时间
+
+      atBottom: true,                      // 滚动到底部，用来判断能否自动滚动
+      cantScrollStartTime: null            // 开始不能自动滚动的时间，用来防止卡住
+    }
+  },
+  computed: {
+    canScrollToBottom() {
+      return this.atBottom/* || this.allowScroll*/
+    }
+  },
+  watch: {
+    css(val) {
+      this.styleElement.innerText = val
+    },
+    canScrollToBottom(val) {
+      this.cantScrollStartTime = val ? null : new Date()
+    }
+  },
+  mounted() {
+    this.styleElement.innerText = this.css
+    this.scrollToBottom()
+  },
+  beforeDestroy() {
+    document.head.removeChild(this.styleElement)
+    if (this.emitSmoothedMessageTimerId) {
+      window.clearTimeout(this.emitSmoothedMessageTimerId)
+      this.emitSmoothedMessageTimerId = null
+    }
+    this.clearMessages()
+  },
+  methods: {
+    getGiftShowContent(message) {
+      return constants.getGiftShowContent(message, this.showGiftName)
+    },
+    getShowContent: constants.getShowContent,
+
+    addMessage(message) {
+      this.addMessages([message])
+    },
+    addMessages(messages) {
+      this.enqueueMessages(messages)
+    },
+    mergeSimilarText(content) {
+      content = content.trim().toLowerCase()
+      let res = false
+      this.forEachRecentMessage(5, message => {
+        if (message.type !== constants.MESSAGE_TYPE_TEXT) {
+          return true
+        }
+        let messageContent = message.content.trim().toLowerCase()
+        let longer, shorter
+        if (messageContent.length > content.length) {
+          longer = messageContent
+          shorter = content
+        } else {
+          longer = content
+          shorter = messageContent
+        }
+        if (longer.indexOf(shorter) !== -1 // 长的包含短的
+            && longer.length - shorter.length < shorter.length // 长度差较小
+        ) {
+          // 其实有小概率导致弹幕卡住
+          message.repeated++
+          res = true
+          return false
+        }
+        return true
+      })
+      return res
+    },
+    mergeSimilarGift(authorName, price, giftName, num) {
+      let res = false
+      this.forEachRecentMessage(5, message => {
+        if (message.type === constants.MESSAGE_TYPE_GIFT
+            && message.authorName === authorName
+            && message.giftName === giftName
+        ) {
+          message.price += price
+          message.num += num
+          res = true
+          return false
+        }
+        return true
+      })
+      return res
+    },
+    forEachRecentMessage(num, callback) {
+      // 从新到老遍历num条消息
+      for (let i = this.smoothedMessageQueue.length - 1; i >= 0 && num > 0; i--) {
+        let messageGroup = this.smoothedMessageQueue[i]
+        for (let j = messageGroup.length - 1; j >= 0 && num-- > 0; j--) {
+          if (!callback(messageGroup[j])) {
+            return
+          }
+        }
+      }
+      for (let arr of [this.messagesBuffer, this.messages]) {
+        for (let i = arr.length - 1; i >= 0 && num-- > 0; i--) {
+          if (!callback(arr[i])) {
+            return
+          }
+        }
+      }
+    },
+    delMessage(id) {
+      this.delMessages([id])
+    },
+    delMessages(ids) {
+      this.enqueueMessages(ids.map(id => {
+        return {
+          type: constants.MESSAGE_TYPE_DEL,
+          id
+        }
+      }))
+    },
+    clearMessages() {
+      this.messages = []
+      this.paidMessages = []
+      this.smoothedMessageQueue = []
+      this.messagesBuffer = []
+      this.isSmoothed = true
+      this.lastSmoothChatMessageAddMs = null
+      this.chatRateMs = 1000
+      this.lastSmoothScrollUpdate = null
+      this.scrollTimeRemainingMs = this.scrollPixelsRemaining = 0
+      this.smoothScrollRafHandle = null
+      this.preinsertHeight = 0
+      this.maybeResizeScrollContainer()
+      if (!this.atBottom) {
+        this.scrollToBottom()
+      }
+    },
+    updateMessage(id, newValuesObj) {
+      this.enqueueMessages([{
+        type: constants.MESSAGE_TYPE_UPDATE,
+        id,
+        newValuesObj
+      }])
+    },
+
+    enqueueMessages(messages) {
+      if (this.lastEnqueueTime) {
+        let interval = new Date() - this.lastEnqueueTime
+        // 理论上B站发包间隔1S，如果不过滤间隔太短的会导致消息平滑失效
+        if (interval > 100) {
+          this.enqueueIntervals.push(interval)
+          if (this.enqueueIntervals.length > 5) {
+            this.enqueueIntervals.splice(0, this.enqueueIntervals.length - 5)
+          }
+          this.estimatedEnqueueInterval = Math.max(...this.enqueueIntervals)
+        }
+      }
+      this.lastEnqueueTime = new Date()
+
+      // 只有要显示的消息需要平滑
+      let messageGroup = []
+      for (let message of messages) {
+        messageGroup.push(message)
+        if (message.type !== constants.MESSAGE_TYPE_DEL && message.type !== constants.MESSAGE_TYPE_UPDATE) {
+          this.smoothedMessageQueue.push(messageGroup)
+          messageGroup = []
+        }
+      }
+      if (messageGroup.length > 0) {
+          this.smoothedMessageQueue.push(messageGroup)
+      }
+
+      if (!this.emitSmoothedMessageTimerId) {
+        this.emitSmoothedMessageTimerId = window.setTimeout(this.emitSmoothedMessages)
+      }
+    },
+    emitSmoothedMessages() {
+      this.emitSmoothedMessageTimerId = null
+      if (this.smoothedMessageQueue.length <= 0) {
+        return
+      }
+
+      // 估计的下次进队列剩余时间
+      let estimatedNextEnqueueRemainTime = 10 * 1000
+      if (this.estimatedEnqueueInterval) {
+        estimatedNextEnqueueRemainTime = Math.max(this.lastEnqueueTime - new Date() + this.estimatedEnqueueInterval, 1)
+      }
+      // 最快80ms/条，计算发送的消息数，保证在下次进队列之前消费队列到最多剩3条消息，不消费完是为了防止消息速度变慢时突然停顿
+      const MIN_SLEEP_TIME = 80
+      const MAX_SLEEP_TIME = 1000
+      const MAX_REMAIN_GROUP_NUM = 3
+      // 下次进队列之前应该发多少条消息
+      let shouldEmitGroupNum = Math.max(this.smoothedMessageQueue.length - MAX_REMAIN_GROUP_NUM, 0)
+      // 下次进队列之前最多能发多少次
+      let maxCanEmitCount = estimatedNextEnqueueRemainTime / MIN_SLEEP_TIME
+      // 这次发多少条消息
+      let groupNumToEmit
+      if (shouldEmitGroupNum < maxCanEmitCount) {
+        // 队列中消息数很少，每次发1条也能发到最多剩3条
+        groupNumToEmit = 1
+      } else {
+        // 每次发1条以上，保证按最快速度能发到最多剩3条
+        groupNumToEmit = Math.ceil(shouldEmitGroupNum / maxCanEmitCount)
+      }
+
+      // 发消息
+      let messageGroups = this.smoothedMessageQueue.splice(0, groupNumToEmit)
+      let mergedGroup = []
+      for (let messageGroup of messageGroups) {
+        for (let message of messageGroup) {
+          mergedGroup.push(message)
+        }
+      }
+      this.handleMessageGroup(mergedGroup)
+
+      if (this.smoothedMessageQueue.length <= 0) {
+        return
+      }
+      // 消息没发完，计算下次发消息时间
+      let sleepTime
+      if (groupNumToEmit === 1) {
+        // 队列中消息数很少，随便定个[MIN_SLEEP_TIME, MAX_SLEEP_TIME]的时间
+        sleepTime = estimatedNextEnqueueRemainTime / this.smoothedMessageQueue.length
+        sleepTime *= 0.5 + Math.random()
+        if (sleepTime > MAX_SLEEP_TIME) {
+          sleepTime = MAX_SLEEP_TIME
+        } else if (sleepTime < MIN_SLEEP_TIME) {
+          sleepTime = MIN_SLEEP_TIME
+        }
+      } else {
+        // 按最快速度发
+        sleepTime = MIN_SLEEP_TIME
+      }
+      this.emitSmoothedMessageTimerId = window.setTimeout(this.emitSmoothedMessages, sleepTime)
+    },
+
+    handleMessageGroup(messageGroup) {
+      if (messageGroup.length <= 0) {
+        return
+      }
+
+      for (let message of messageGroup) {
+        switch (message.type) {
+          case constants.MESSAGE_TYPE_TEXT:
+          case constants.MESSAGE_TYPE_GIFT:
+          case constants.MESSAGE_TYPE_MEMBER:
+          case constants.MESSAGE_TYPE_SUPER_CHAT:
+            this.handleAddMessage(message)
+            break
+          case constants.MESSAGE_TYPE_DEL:
+            this.handleDelMessage(message)
+            break
+          case constants.MESSAGE_TYPE_UPDATE:
+            this.handleUpdateMessage(message)
+            break
+        }
+      }
+
+      this.maybeResizeScrollContainer(),
+      this.flushMessagesBuffer()
+      this.$nextTick(this.maybeScrollToBottom)
+    },
+    handleAddMessage(message) {
+      message = {
+        ...message,
+        addTime: new Date() // 添加一个本地时间给Ticker用，防止本地时间和服务器时间相差很大的情况
+      }
+      this.messagesBuffer.push(message)
+      if (message.type !== constants.MESSAGE_TYPE_TEXT) {
+        this.paidMessages.unshift(message)
+      }
+    },
+    handleDelMessage({id}) {
+      for (let arr of [this.messages, this.paidMessages, this.messagesBuffer]) {
+        for (let i = 0; i < arr.length; i++) {
+          if (arr[i].id === id) {
+            arr.splice(i, 1)
+            this.resetSmoothScroll()
+            break
+          }
+        }
+      }
+    },
+    handleUpdateMessage({id, newValuesObj}) {
+      // 遍历滚动的消息
+      this.forEachRecentMessage(999999999, message => {
+        if (message.id !== id) {
+          return true
+        }
+        for (let name in newValuesObj) {
+          message[name] = newValuesObj[name]
+        }
+        return false
+      })
+      // 遍历固定的消息
+      for (let message of this.paidMessages) {
+        if (message.id !== id) {
+          continue
+        }
+        for (let name in newValuesObj) {
+          message[name] = newValuesObj[name]
+        }
+        break
+      }
+      this.resetSmoothScroll()
+    },
+
+    async flushMessagesBuffer() {
+      if (this.messagesBuffer.length <= 0) {
+        return
+      }
+      if (!this.canScrollToBottomOrTimedOut()) {
+        if (this.messagesBuffer.length > this.maxNumber) {
+          // 未显示消息数 > 最大可显示数，丢弃
+          this.messagesBuffer.splice(0, this.messagesBuffer.length - this.maxNumber)
+        }
+        return
+      }
+
+      let removeNum = Math.max(this.messages.length + this.messagesBuffer.length - this.maxNumber, 0)
+      if (removeNum > 0) {
+        this.messages.splice(0, removeNum)
+        // 防止同时添加和删除项目时所有的项目重新渲染 https://github.com/vuejs/vue/issues/6857
+        await this.$nextTick()
+      }
+
+      this.preinsertHeight = this.$refs.items.clientHeight
+      for (let message of this.messagesBuffer) {
+        this.messages.push(message)
+      }
+      this.messagesBuffer = []
+      // 等items高度变化
+      this.$nextTick(this.showNewMessages)
+    },
+    showNewMessages() {
+      let hasScrollBar = this.$refs.items.clientHeight > this.$refs.scroller.clientHeight
+      this.$refs.itemOffset.style.height = `${this.$refs.items.clientHeight}px`
+      if (!this.canScrollToBottomOrTimedOut() || !hasScrollBar) {
+        return
+      }
+
+      // 计算剩余像素
+      this.scrollPixelsRemaining += this.$refs.items.clientHeight - this.preinsertHeight
+      this.scrollToBottom()
+
+      // 计算是否平滑滚动、剩余时间
+      if (!this.lastSmoothChatMessageAddMs) {
+        this.lastSmoothChatMessageAddMs = performance.now()
+      }
+      let interval = performance.now() - this.lastSmoothChatMessageAddMs
+      this.chatRateMs = 0.9 * this.chatRateMs + 0.1 * interval
+      if (this.isSmoothed) {
+        if (this.chatRateMs < 400) {
+          this.isSmoothed = false
+        }
+      } else {
+        if (this.chatRateMs > 450) {
+          this.isSmoothed = true
+        }
+      }
+      this.scrollTimeRemainingMs += this.isSmoothed ? CHAT_SMOOTH_ANIMATION_TIME_MS : 0
+
+      if (!this.smoothScrollRafHandle) {
+        this.smoothScrollRafHandle = window.requestAnimationFrame(this.smoothScroll)
+      }
+      this.lastSmoothChatMessageAddMs = performance.now()
+    },
+    smoothScroll(time) {
+      if (!this.lastSmoothScrollUpdate) {
+        // 第一帧
+        this.lastSmoothScrollUpdate = time
+        this.smoothScrollRafHandle = window.requestAnimationFrame(this.smoothScroll)
+        return
+      }
+
+      let interval = time - this.lastSmoothScrollUpdate
+      if (
+        this.scrollPixelsRemaining <= 0 || this.scrollPixelsRemaining >= 400  // 已经滚动到底部或者离底部太远则结束
+        || interval >= 1000 // 离上一帧时间太久，可能用户切换到其他网页
+        || this.scrollTimeRemainingMs <= 0 // 时间已结束
+      ) {
+        this.resetSmoothScroll()
+        return
+      }
+
+      let pixelsToScroll = interval / this.scrollTimeRemainingMs * this.scrollPixelsRemaining
+      this.scrollPixelsRemaining -= pixelsToScroll
+      if (this.scrollPixelsRemaining < 0) {
+        this.scrollPixelsRemaining = 0
+      }
+      this.scrollTimeRemainingMs -= interval
+      if (this.scrollTimeRemainingMs < 0) {
+        this.scrollTimeRemainingMs = 0
+      }
+      this.lastSmoothScrollUpdate = time
+      this.smoothScrollRafHandle = window.requestAnimationFrame(this.smoothScroll)
+    },
+    resetSmoothScroll() {
+      this.scrollTimeRemainingMs = this.scrollPixelsRemaining = 0
+      this.lastSmoothScrollUpdate = null
+      if (this.smoothScrollRafHandle) {
+        window.cancelAnimationFrame(this.smoothScrollRafHandle)
+        this.smoothScrollRafHandle = null
+      }
+    },
+
+    maybeResizeScrollContainer() {
+      this.$refs.itemOffset.style.height = `${this.$refs.items.clientHeight}px`
+      this.maybeScrollToBottom()
+    },
+    maybeScrollToBottom() {
+      if (this.canScrollToBottomOrTimedOut()) {
+        this.scrollToBottom()
+      }
+    },
+    scrollToBottom() {
+      this.$refs.scroller.scrollTop = Math.pow(2, 24)
+      this.atBottom = true
+    },
+    onScroll() {
+      this.refreshCantScrollStartTime()
+      let scroller = this.$refs.scroller
+      this.atBottom = scroller.scrollHeight - scroller.scrollTop - scroller.clientHeight < SCROLLED_TO_BOTTOM_EPSILON
+      this.flushMessagesBuffer()
+    },
+    canScrollToBottomOrTimedOut() {
+      if (this.canScrollToBottom) {
+        return true
+      }
+      // 防止在OBS中卡住，超过一定时间也可以自动滚动
+      return new Date() - this.cantScrollStartTime >= 5 * 1000
+    },
+    refreshCantScrollStartTime() {
+      // 有鼠标事件时刷新，防止用户看弹幕时自动滚动
+      if (this.cantScrollStartTime) {
+        this.cantScrollStartTime = new Date()
+      }
+    }
+  }
+}
+</script>
+
+<style src="@/assets/css/youtube/yt-html.css"></style>
+<style src="@/assets/css/youtube/yt-live-chat-renderer.css"></style>
+<style src="@/assets/css/youtube/yt-live-chat-item-list-renderer.css"></style>

frontend/src/components/Home.vue

@@ -1,24 +0,0 @@
-<template>
-  <div>
-    房间ID：
-    <input type="number" min="1" v-model="roomId" />
-    <button @click="go">进入</button>
-  </div>
-</template>
-
-<script>
-export default {
-  name: 'Home',
-  data() {
-    return {
-      roomId: window.localStorage.roomId || '1'
-    }
-  },
-  methods: {
-    go() {
-      window.localStorage.roomId = this.roomId
-      this.$router.push({name: 'room', params: {roomId: this.roomId}})
-    }
-  }
-}
-</script>

frontend/src/components/LegacyPaidMessage.vue

@@ -1,20 +0,0 @@
-<template>
-  <yt-live-chat-legacy-paid-message-renderer>
-    <div id="author-photo" :style="`background-image: url(${avatarUrl})`"></div>
-    <div id="content">
-      <div id="event-text">{{title}}</div>
-      <div id="detail-text">{{content}}</div>
-    </div>
-  </yt-live-chat-legacy-paid-message-renderer>
-</template>
-
-<script>
-export default {
-  name: 'LegacyPaidMessage',
-  props: {
-    avatarUrl: String,
-    title: String,
-    content: String
-  }
-}
-</script>

frontend/src/components/PaidMessage.vue

@@ -1,69 +0,0 @@
-<template>
-  <yt-live-chat-paid-message-renderer>
-    <div id="header" :style="'background-color: ' + headerColor">
-      <div id="author-photo" :style="`background-image: url(${avatarUrl})`"></div>
-      <div id="header-content">
-        <div id="author-name">{{authorName}}</div>
-        <div id="purchase-amount">CN¥{{price}}</div>
-      </div>
-    </div>
-    <div id="content" :style="'background-color: ' + contentColor">
-      <div id="message" dir="auto">{{content}}</div>
-    </div>
-  </yt-live-chat-paid-message-renderer>
-</template>
-
-<script>
-const LEVEL_TO_HEADER_COLOR = [
-  'rgba(21,101,192,1)', //$1蓝
-  'rgba(0,184,212,1)', // $2浅蓝
-  'rgba(0,191,165,1)', // $5绿
-  'rgba(255,179,0,1)', // $10黄
-  'rgba(230,81,0,1)', // $20橙
-  'rgba(194,24,91,1)', // $50品红
-  'rgba(208,0,0,1)' // $100红
-]
-const LEVEL_TO_CONTENT_COLOR = [
-  'rgba(30,136,229,1)', //$1蓝
-  'rgba(0,229,255,1)', // $2浅蓝
-  'rgba(29,233,182,1)', // $5绿
-  'rgba(255,202,40,1)', // $10黄
-  'rgba(245,124,0,1)', // $20橙
-  'rgba(233,30,99,1)', // $50品红
-  'rgba(230,33,23,1)' // $100红
-]
-
-export default {
-  name: 'PaidMessage',
-  props: {
-    price: Number, // 价格，人民币
-    avatarUrl: String,
-    authorName: String,
-    content: String
-  },
-  computed: {
-    level() {
-      if (this.price < 9.9) // 0~9.9，丢人
-        return 0
-      else if (this.price < 28) // 9.9~28，B坷垃
-        return 1
-      else if (this.price < 52) // 28~52，礼花
-        return 2
-      else if (this.price < 100) // 52~100，疯狂打call
-        return 3
-      else if (this.price < 450) // 100~450，节奏风暴、天空之翼
-        return 4
-      else if (this.price < 1245) // 450~1245，摩天大楼
-        return 5
-      else // 1245，小电视飞船
-        return 6
-    },
-    headerColor() {
-      return LEVEL_TO_HEADER_COLOR[this.level]
-    },
-    contentColor() {
-      return LEVEL_TO_CONTENT_COLOR[this.level]
-    }
-  }
-}
-</script>

frontend/src/components/Room.vue

@@ -1,125 +0,0 @@
-<template>
-  <yt-live-chat-renderer>
-    <!-- <yt-live-chat-ticker-renderer>
-      <yt-live-chat-ticker-paid-message-item-renderer style="background-color: rgba(0,184,212,1);">
-        <div id="content">
-          <span id="fake-avatar"></span>
-          <span>$5.00</span>
-        </div>
-      </yt-live-chat-ticker-paid-message-item-renderer>
-      <yt-live-chat-ticker-paid-message-item-renderer style="background-color: rgba(208,0,0,1);">
-        <div id="content">
-          <span id="fake-avatar"></span>
-          <span>$500.00</span>
-        </div>
-      </yt-live-chat-ticker-paid-message-item-renderer>
-    </yt-live-chat-ticker-renderer> -->
-    <yt-live-chat-item-list-renderer>
-      <template v-for="message in messages">
-        <text-message :key="message.id" v-if="message.type == 0"
-          :avatarUrl="message.avatarUrl" :time="message.time" :authorName="message.authorName"
-          :authorType="message.authorType" :content="message.content"
-        ></text-message>
-        <legacy-paid-message :key="message.id" v-else-if="message.type == 1"
-          :avatarUrl="message.avatarUrl" :title="message.title" :content="message.content"
-        ></legacy-paid-message>
-        <paid-message :key="message.id" v-else
-          :price="message.price" :avatarUrl="message.avatarUrl" :authorName="message.authorName"
-          :content="message.content"
-        ></paid-message>
-      </template>
-    </yt-live-chat-item-list-renderer>
-  </yt-live-chat-renderer>
-</template>
-
-<script>
-import TextMessage from './TextMessage.vue'
-import LegacyPaidMessage from './LegacyPaidMessage.vue'
-import PaidMessage from './PaidMessage.vue'
-
-const COMMAND_JOIN_ROOM = 0
-const COMMAND_ADD_TEXT = 1
-const COMMAND_ADD_GIFT = 2
-const COMMAND_ADD_VIP = 3
-
-export default {
-  name: 'Room',
-  components: {
-    TextMessage,
-    LegacyPaidMessage,
-    PaidMessage
-  },
-  data() {
-    return {
-      websocket: null,
-      messages: [],
-      nextId: 0
-    }
-  },
-  created() {
-    this.websocket = new WebSocket(`ws://${window.location.host}/chat`)
-    // 测试用
-    // this.websocket = new WebSocket('ws://localhost/chat')
-    this.websocket.onopen = () => this.websocket.send(JSON.stringify({
-      cmd: COMMAND_JOIN_ROOM,
-      data: {
-        roomId: parseInt(this.$route.params.roomId)
-      }
-    }))
-    this.websocket.onmessage = (event) => {
-      let body = JSON.parse(event.data)
-      let message = null
-      let time, price
-      switch(body.cmd) {
-      case COMMAND_ADD_TEXT:
-        time = new Date(body.data.timestamp * 1000)
-        message = {
-          id: this.nextId++,
-          type: 0, // TextMessage
-          avatarUrl: body.data.avatarUrl,
-          time: `${time.getHours()}:${time.getMinutes()}`,
-          authorName: body.data.authorName,
-          authorType: body.data.authorType,
-          content: body.data.content
-        }
-        break
-      case COMMAND_ADD_GIFT:
-        price = body.data.totalCoin / 1000
-        if (price < 6.911) // 丢人
-          break
-        message = {
-          id: this.nextId++,
-          type: 2, // PaidMessage
-          price: price,
-          avatarUrl: body.data.avatarUrl,
-          authorName: body.data.authorName,
-          content: `Sent ${body.data.giftName}x${body.data.giftNum}`
-        }
-        break
-      case COMMAND_ADD_VIP:
-        message = {
-          id: this.nextId++,
-          type: 1, // LegacyPaidMessage
-          avatarUrl: body.data.avatarUrl,
-          title: 'NEW MEMBER!',
-          content: `Welcome ${body.data.authorName}`
-        }
-        break
-      }
-      if (message) {
-        this.messages.push(message)
-        if (this.messages.length > 50)
-          this.messages.shift()
-      }
-    }
-  },
-  beforeDestroy() {
-    this.websocket.close()
-  },
-  updated() {
-      window.scrollTo(0, document.body.scrollHeight)
-  }
-}
-</script>
-
-<style src="../assets/room.css"></style>

frontend/src/components/TextMessage.vue

@@ -1,35 +0,0 @@
-<template>
-  <yt-live-chat-text-message-renderer :author-type="authorTypeText">
-    <div id="author-photo" :style="`background-image: url(${avatarUrl})`"></div>
-    <div id="content">
-      <span id="timestamp">{{time}}</span>
-      <span id="author-name" :type="authorTypeText">{{authorName}}</span>
-      <span id="message">{{content}}</span>
-    </div>
-  </yt-live-chat-text-message-renderer>
-</template>
-
-<script>
-const AUTHOR_TYPE_TO_TEXT = [
-  '',
-  'member', // 舰队
-  'moderator', // 房管
-  'owner' // 主播
-]
-
-export default {
-  name: 'TextMessage',
-  props: {
-    avatarUrl: String,
-    time: String,
-    authorName: String,
-    authorType: Number,
-    content: String
-  },
-  computed: {
-    authorTypeText() {
-      return AUTHOR_TYPE_TO_TEXT[this.authorType]
-    }
-  }
-}
-</script>

frontend/src/lang/en.js

@@ -0,0 +1,121 @@
+export default {
+  sidebar: {
+    home: 'Home',
+    stylegen: 'Style generator',
+    help: 'Help',
+    projectAddress: 'Project address',
+    giftRecordOfficial: 'Official Super Chat record',
+  },
+  home: {
+    roomIdEmpty: "Room ID can't be empty",
+    roomIdInteger: 'Room ID must be positive integer',
+
+    general: 'General',
+    roomId: 'Room ID',
+    showDanmaku: 'Show messages',
+    showGift: 'Show Super Chats',
+    showGiftName: 'Show gift name',
+    mergeSimilarDanmaku: 'Merge similar messages',
+    mergeGift: 'Merge gifts',
+    minGiftPrice: 'Min price of Super Chats to show (CNY)',
+    maxNumber: 'Max number of messages',
+
+    block: 'Block',
+    giftDanmaku: 'Block system messages (gift effect)',
+    blockLevel: 'Block user level lower than',
+    informalUser: 'Block informal users',
+    unverifiedUser: 'Block unverified users',
+    blockKeywords: 'Block keywords',
+    onePerLine: 'One per line',
+    blockUsers: 'Block users',
+    blockMedalLevel: 'Block medal level lower than',
+
+    advanced: 'Advanced',
+    relayMessagesByServer: 'Relay messages by server',
+    autoTranslate: 'Auto translate messages to Japanese (requires relay messages by server)',
+
+    roomUrl: 'Room URL',
+    copy: 'Copy',
+    enterRoom: 'Enter room',
+    exportConfig: 'Export config',
+    importConfig: 'Import config',
+
+    failedToParseConfig: 'Failed to parse config: '
+  },
+  stylegen: {
+    outlines: 'Outlines',
+    showOutlines: 'Show outlines',
+    outlineSize: 'Outline size',
+    outlineColor: 'Outline color',
+
+    avatars: 'Avatars',
+    showAvatars: 'Show avatars',
+    avatarSize: 'Avatar size',
+
+    userNames: 'User names',
+    showUserNames: 'Show user names',
+    font: 'Font',
+    fontSize: 'Font size',
+    lineHeight: 'Line height (0 for default)',
+    normalColor: 'Normal color',
+    ownerColor: 'Owner color',
+    moderatorColor: 'Moderator color',
+    memberColor: 'Member color',
+    showBadges: 'Show badges',
+    showColon: 'Show colon after name',
+
+    messages: 'Messages',
+    color: 'Color',
+    onNewLine: 'On new line',
+
+    time: 'Timestamps',
+    showTime: 'Show timestamps',
+
+    backgrounds: 'Backgrounds',
+    bgColor: 'Background color',
+    useBarsInsteadOfBg: 'Use bars instead of backgrounds',
+    messageBgColor: 'Message background color',
+    ownerMessageBgColor: 'Owner background color',
+    moderatorMessageBgColor: 'Moderator background color',
+    memberMessageBgColor: 'Member background color',
+
+    scAndNewMember: 'Super Chat / New member',
+    firstLineFont: 'First line font',
+    firstLineFontSize: 'First line font size',
+    firstLineLineHeight: 'First line line height (0 for default)',
+    firstLineColor: 'First line color',
+    secondLineFont: 'Second line font',
+    secondLineFontSize: 'Second line font size',
+    secondLineLineHeight: 'Second line line height (0 for default)',
+    secondLineColor: 'Second line color',
+    scContentLineFont: 'Super Chat content font',
+    scContentLineFontSize: 'Super Chat content font size',
+    scContentLineLineHeight: 'Super Chat content line height (0 for default)',
+    scContentLineColor: 'Super Chat content color',
+    showNewMemberBg: 'Show new member background',
+    showScTicker: 'Show Super Chat ticker',
+    showOtherThings: 'Show everything other than Super Chat ticker',
+
+    animation: 'Animation',
+    animateIn: 'Animate in',
+    fadeInTime: 'Fade in time (miliseconds)',
+    animateOut: 'Animate out (remove old messages)',
+    animateOutWaitTime: 'Wait time (seconds)',
+    fadeOutTime: 'Fade out time (miliseconds)',
+    slide: 'Slide',
+    reverseSlide: 'Reverse slide',
+    playAnimation: 'Play animation',
+
+    result: 'Result',
+    copy: 'Copy',
+    resetConfig: 'Reset config'
+  },
+  help: {
+    help: 'Help',
+    p1: '1. Copy the room ID from the Bilibili live room webpage',
+    p2: '2. Enter the room ID into the room ID on the home page. Copy the room URL',
+    p3: '3. Generate styles with the style generator. Copy the CSS',
+    p4: '4. Add browser source in OBS',
+    p5: '5. Enter the previously copied room URL at URL, and enter the previously copied CSS at custom CSS'
+  }
+}

frontend/src/lang/ja.js

@@ -0,0 +1,121 @@
+export default {
+  sidebar: {
+    home: 'トップページ',
+    stylegen: 'スタイルジェネレータ',
+    help: 'ヘルプ',
+    projectAddress: 'プロジェクトアドレス',
+    giftRecordOfficial: '公式スーパーチャット記録',
+  },
+  home: {
+    roomIdEmpty: 'ルームのIDを空白にすることはできません',
+    roomIdInteger: 'ルームは正の整数でなければなりません',
+
+    general: '常規',
+    roomId: 'ルームID',
+    showDanmaku: 'コメントを表示する',
+    showGift: 'スーパーチャットと新メンバーを表示する',
+    showGiftName: 'ギフト名を表示する',
+    mergeSimilarDanmaku: '同じコメントを合併する',
+    mergeGift: 'ギフトを合併する',
+    minGiftPrice: '最低表示スーパーチャット価格（CNY）',
+    maxNumber: '最大コメント数',
+
+    block: 'ブロック',
+    giftDanmaku: 'ブロックシステムコメント（プレゼント効果）',
+    blockLevel: 'ブロックユーザーレベルがx未満',
+    informalUser: 'ブロック非公式ユーザー',
+    unverifiedUser: 'ブロック認証されていないユーザー',
+    blockKeywords: 'ブロックキーワード',
+    onePerLine: '1行に1つずつ',
+    blockUsers: 'ブロックユーザー',
+    blockMedalLevel: 'ブロック勲章等級がx未満',
+
+    advanced: 'アドバンスド',
+    relayMessagesByServer: 'サーバを介してメッセージを転送する',
+    autoTranslate: 'コメントを日本語に翻訳する（サーバを介してメッセージを転送する必要）',
+
+    roomUrl: 'ルームのURL',
+    copy: 'コピー',
+    enterRoom: 'ルームに入る',
+    exportConfig: 'コンフィグの導出',
+    importConfig: 'コンフィグの導入',
+
+    failedToParseConfig: 'コンフィグ解析に失敗しました'
+  },
+  stylegen: {
+    outlines: 'アウトライン',
+    showOutlines: 'アウトラインを表示する',
+    outlineSize: 'アウトラインのサイズ',
+    outlineColor: 'アウトラインの色',
+
+    avatars: 'アイコン',
+    showAvatars: 'アイコンを表示する',
+    avatarSize: 'アイコンのサイズ',
+
+    userNames: 'ユーザー名',
+    showUserNames: 'ユーザー名を表示する',
+    font: 'フォント',
+    fontSize: 'フォントサイズ',
+    lineHeight: '行の高さ（0はデフォルト）',
+    normalColor: 'ノーマルの色',
+    ownerColor: 'オーナーの色',
+    moderatorColor: '管理者の色',
+    memberColor: 'メンバーの色',
+    showBadges: '勲章を見せる',
+    showColon: 'ユーザー名の後にコロンが表示されます',
+
+    messages: 'コメント',
+    color: '色',
+    onNewLine: '新しい行に表示する',
+
+    time: '時間',
+    showTime: '時間を表示する',
+
+    backgrounds: '背景',
+    bgColor: '背景色',
+    useBarsInsteadOfBg: '背景に代わります',
+    messageBgColor: 'コメント背景色',
+    ownerMessageBgColor: 'オーナーコメント背景色',
+    moderatorMessageBgColor: '管理者コメント背景色',
+    memberMessageBgColor: 'メンバーコメント背景色',
+
+    scAndNewMember: 'スーパーチャット、新メンバー',
+    firstLineFont: '1行目のフォント',
+    firstLineFontSize: '1行目のフォントサイズ',
+    firstLineLineHeight: '1行目の高さ（0はデフォルト）',
+    firstLineColor: '1行目の色',
+    secondLineFont: '2行目のフォント',
+    secondLineFontSize: '2行目のフォントサイズ',
+    secondLineLineHeight: '2行目の高さ（0はデフォルト）',
+    secondLineColor: '2行目の色',
+    scContentLineFont: 'スーパーチャットのコンテンツフォント',
+    scContentLineFontSize: 'スーパーチャットコンテンツフォントサイズ',
+    scContentLineLineHeight: 'スーパーチャットコンテンツライン高さ（0がデフォルト）',
+    scContentLineColor: 'スーパーチャットコンテンツライン色',
+    showNewMemberBg: '新メンバーの背景を表示する',
+    showScTicker: 'スーパーチャットチカーの表示',
+    showOtherThings: 'スーパーチャットチカー以外のコンテンツを表示します',
+
+    animation: 'アニメーション',
+    animateIn: '入場アニメーション',
+    fadeInTime: 'フェードイン時間（ミリ秒）',
+    animateOut: '古いコメントを除去する',
+    animateOutWaitTime: '待ち時間（秒）',
+    fadeOutTime: 'フェードアウト時間（ミリ秒）',
+    slide: '滑る',
+    reverseSlide: '逆の滑る',
+    playAnimation: 'アニメーションを再生する',
+
+    result: '結果',
+    copy: 'コピー',
+    resetConfig: 'デフォルトに戻す'
+  },
+  help: {
+    help: 'ヘルプ',
+    p1: '1. ビリビリの生放送ウェブから生放送ルームIDをこぴーする',
+    p2: '2. ホームページでコピーしたIDを入力し、ルームのURLをこぴーする',
+    p3: '3. スタイルジェネレータでお好みのコメント様子を選び、出力したCSSをコピーする',
+    p4: '4. OBSでブラウザを新規作成する',
+    p5: '5. プロパティでこぴーしたURLを入力し、カスタムCSSでスタイルジェネレータのCSSを入力する'
+  }
+}

frontend/src/lang/zh.js

@@ -0,0 +1,121 @@
+export default {
+  sidebar: {
+    home: '首页',
+    stylegen: '样式生成器',
+    help: '帮助',
+    projectAddress: '项目地址',
+    giftRecordOfficial: '官方打赏记录',
+  },
+  home: {
+    roomIdEmpty: '房间ID不能为空',
+    roomIdInteger: '房间ID必须为正整数',
+
+    general: '常规',
+    roomId: '房间ID',
+    showDanmaku: '显示弹幕',
+    showGift: '显示打赏和新舰长',
+    showGiftName: '显示礼物名',
+    mergeSimilarDanmaku: '合并相似弹幕',
+    mergeGift: '合并礼物',
+    minGiftPrice: '最低显示打赏价格（元）',
+    maxNumber: '最大弹幕数',
+
+    block: '屏蔽',
+    giftDanmaku: '屏蔽礼物弹幕',
+    blockLevel: '屏蔽用户等级低于',
+    informalUser: '屏蔽非正式会员',
+    unverifiedUser: '屏蔽未绑定手机用户',
+    blockKeywords: '屏蔽关键词',
+    onePerLine: '一行一个',
+    blockUsers: '屏蔽用户',
+    blockMedalLevel: '屏蔽当前直播间勋章等级低于',
+
+    advanced: '高级',
+    relayMessagesByServer: '通过服务器转发消息',
+    autoTranslate: '自动翻译弹幕到日语（需要通过服务器转发消息）',
+
+    roomUrl: '房间URL',
+    copy: '复制',
+    enterRoom: '进入房间',
+    exportConfig: '导出配置',
+    importConfig: '导入配置',
+
+    failedToParseConfig: '配置解析失败：'
+  },
+  stylegen: {
+    outlines: '描边',
+    showOutlines: '显示描边',
+    outlineSize: '描边尺寸',
+    outlineColor: '描边颜色',
+
+    avatars: '头像',
+    showAvatars: '显示头像',
+    avatarSize: '头像尺寸',
+
+    userNames: '用户名',
+    showUserNames: '显示用户名',
+    font: '字体',
+    fontSize: '字体尺寸',
+    lineHeight: '行高（0为默认）',
+    normalColor: '普通颜色',
+    ownerColor: '主播颜色',
+    moderatorColor: '房管颜色',
+    memberColor: '舰长颜色',
+    showBadges: '显示勋章',
+    showColon: '用户名后显示冒号',
+
+    messages: '消息',
+    color: '颜色',
+    onNewLine: '在新行显示',
+
+    time: '时间',
+    showTime: '显示时间',
+
+    backgrounds: '背景',
+    bgColor: '背景色',
+    useBarsInsteadOfBg: '用条代替背景',
+    messageBgColor: '消息背景色',
+    ownerMessageBgColor: '主播消息背景色',
+    moderatorMessageBgColor: '房管消息背景色',
+    memberMessageBgColor: '舰长消息背景色',
+
+    scAndNewMember: '打赏、舰长',
+    firstLineFont: '第一行字体',
+    firstLineFontSize: '第一行字体尺寸',
+    firstLineLineHeight: '第一行行高（0为默认）',
+    firstLineColor: '第一行颜色',
+    secondLineFont: '第二行字体',
+    secondLineFontSize: '第二行字体尺寸',
+    secondLineLineHeight: '第二行行高（0为默认）',
+    secondLineColor: '第二行颜色',
+    scContentLineFont: 'Super Chat内容字体',
+    scContentLineFontSize: 'Super Chat内容字体尺寸',
+    scContentLineLineHeight: 'Super Chat内容行高（0为默认）',
+    scContentLineColor: 'Super Chat内容颜色',
+    showNewMemberBg: '显示新舰长背景',
+    showScTicker: '显示Super Chat固定栏',
+    showOtherThings: '显示Super Chat固定栏之外的内容',
+
+    animation: '动画',
+    animateIn: '进入动画',
+    fadeInTime: '淡入时间（毫秒）',
+    animateOut: '移除旧消息',
+    animateOutWaitTime: '等待时间（秒）',
+    fadeOutTime: '淡出时间（毫秒）',
+    slide: '滑动',
+    reverseSlide: '反向滑动',
+    playAnimation: '播放动画',
+
+    result: '结果',
+    copy: '复制',
+    resetConfig: '恢复默认设置'
+  },
+  help: {
+    help: '帮助',
+    p1: '1. 从B站直播间网页复制房间ID',
+    p2: '2. 把房间ID输入到首页的房间ID，复制房间URL',
+    p3: '3. 使用样式生成器生成样式，复制CSS',
+    p4: '4. 在OBS中添加浏览器源',
+    p5: '5. URL处输入之前复制的房间URL，自定义CSS处输入之前复制的CSS'
+  }
+}

frontend/src/layout/Sidebar.vue

@@ -0,0 +1,68 @@
+<template>
+  <el-scrollbar wrap-class="scrollbar-wrapper">
+    <el-menu
+      router
+      background-color="#304156"
+      text-color="#bfcbd9"
+      active-text-color="rgb(64, 158, 255)"
+      :default-active="$route.path"
+    >
+      <el-menu-item index="/">
+        <i class="el-icon-s-home"></i>{{$t('sidebar.home')}}
+      </el-menu-item>
+      <el-menu-item :index="$router.resolve({name: 'stylegen'}).href">
+        <i class="el-icon-brush"></i>{{$t('sidebar.stylegen')}}
+      </el-menu-item>
+      <el-menu-item :index="$router.resolve({name: 'help'}).href">
+        <i class="el-icon-question"></i>{{$t('sidebar.help')}}
+      </el-menu-item>
+      <a href="https://github.com/xfgryujk/blivechat" target="_blank">
+        <el-menu-item>
+          <i class="el-icon-share"></i>{{$t('sidebar.projectAddress')}}
+        </el-menu-item>
+      </a>
+      <a href="http://link.bilibili.com/ctool/vtuber" target="_blank">
+        <el-menu-item>
+          <i class="el-icon-share"></i>{{$t('sidebar.giftRecordOfficial')}}
+        </el-menu-item>
+      </a>
+      <el-submenu index="null">
+        <template slot="title">
+          <i class="el-icon-chat-line-square"></i>Language
+        </template>
+        <el-menu-item v-for="{locale, name} in [
+            {locale: 'zh', name: '中文'},
+            {locale: 'ja', name: '日本語'},
+            {locale: 'en', name: 'English'}
+          ]" :key="locale"
+          @click="onSelectLanguage(locale)"
+        >{{name}}</el-menu-item>
+      </el-submenu>
+    </el-menu>
+  </el-scrollbar>
+</template>
+
+<script>
+export default {
+  name: 'Sidebar',
+  methods: {
+    onSelectLanguage(locale) {
+      window.localStorage.lang = this.$i18n.locale = locale
+    }
+  }
+}
+</script>
+
+<style>
+.el-scrollbar {
+  height: 100%;
+}
+
+.scrollbar-wrapper {
+  overflow-x: hidden !important;
+}
+
+.scrollbar-wrapper .el-menu {
+  border: none;
+}
+</style>

frontend/src/layout/index.vue

@@ -0,0 +1,140 @@
+<template>
+  <el-container class="app-wrapper" :class="{mobile: isMobile}">
+    <div v-show="isMobile && !hideSidebar" class="drawer-bg" @click="hideSidebar = true"></div>
+    <el-aside width="230px" class="sidebar-container" :class="{'hide-sidebar': hideSidebar}">
+      <div class="logo-container">
+        <router-link to="/">
+          <img src="@/assets/img/logo.png" class="sidebar-logo">
+          <h1 class="sidebar-title">blivechat</h1>
+        </router-link>
+      </div>
+      <div class="version">
+        v1.5.0
+      </div>
+      <sidebar></sidebar>
+    </el-aside>
+    <el-main>
+      <el-button v-show="isMobile" class="menu-button" icon="el-icon-s-unfold" @click="hideSidebar = false"></el-button>
+      <keep-alive>
+        <router-view></router-view>
+      </keep-alive>
+    </el-main>
+  </el-container>
+</template>
+
+<script>
+import Sidebar from './Sidebar.vue'
+
+export default {
+  name: 'Layout',
+  components: {
+    Sidebar
+  },
+  data() {
+    return {
+      isMobile: false,
+      hideSidebar: true
+    }
+  },
+  created() {
+    window.addEventListener('resize', this.onResize)
+    this.onResize()
+  },
+  beforeDestroy() {
+    window.removeEventListener('resize', this.onResize)
+  },
+  methods: {
+    onResize() {
+      this.isMobile = document.body.clientWidth <= 992
+    }
+  }
+}
+</script>
+
+<style>
+html {
+  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "\5FAE\8F6F\96C5\9ED1", "微软雅黑", Arial, sans-serif;
+}
+
+html, body, #app, .app-wrapper, .sidebar-container {
+  height: 100%;
+}
+
+body {
+  margin: 0;
+}
+
+a, a:focus, a:hover {
+  text-decoration: none;
+}
+
+.drawer-bg {
+  background: #000;
+  opacity: 0.3;
+  width: 100%;
+  top: 0;
+  height: 100%;
+  position: absolute;
+  z-index: 999;
+}
+
+.sidebar-container {
+  background-color: #304156;
+  overflow: hidden;
+}
+
+.app-wrapper.mobile .sidebar-container {
+  position: fixed;
+  top: 0;
+  left: 0;
+  transition-duration: 0.3s;
+  z-index: 1001;
+}
+
+.app-wrapper.mobile .sidebar-container.hide-sidebar {
+  pointer-events: none;
+  transition-duration: 0.3s;
+  transform: translate3d(-230px, 0, 0);
+}
+
+.sidebar-container .logo-container {
+  width: 100%;
+  height: 50px;
+  line-height: 50px;
+  background: #2b2f3a;
+  text-align: center;
+}
+
+.sidebar-container .logo-container .sidebar-logo {
+  width: 32px;
+  height: 32px;
+  vertical-align: middle;
+  margin-right: 12px;
+}
+
+.sidebar-container .logo-container .sidebar-title {
+  display: inline-block;
+  margin: 0;
+  color: #fff;
+  font-weight: 600;
+  line-height: 50px;
+  font-size: 14px;
+  font-family: Avenir, Helvetica Neue, Arial, Helvetica, sans-serif;
+  vertical-align: middle;
+}
+
+.sidebar-container .version {
+  height: 30px;
+  background: #2b2f3a;
+  color: #aaa;
+  font-weight: 600;
+  line-height: 30px;
+  font-size: 14px;
+  vertical-align: middle;
+  text-align: center;
+}
+
+.sidebar-container .is-horizontal {
+  display: none;
+}
+</style>

frontend/src/main.js

@@ -1,23 +1,99 @@
 import Vue from 'vue'
 import VueRouter from 'vue-router'
+import VueI18n from 'vue-i18n'
+import {
+  Aside, Autocomplete, Badge, Button, Col, ColorPicker, Container, Divider, Form, FormItem, Image,
+  Input, Main, Menu, MenuItem, Message, Row, Scrollbar, Slider, Submenu, Switch, TabPane, Tabs, Tooltip
+} from 'element-ui'
+import axios from 'axios'
 
 import App from './App.vue'
-import Home from './components/Home.vue'
-import Room from './components/Room.vue'
-import NotFound from './components/NotFound.vue'
+import Layout from './layout'
+import Home from './views/Home.vue'
+import StyleGenerator from './views/StyleGenerator'
+import Help from './views/Help'
+import Room from './views/Room.vue'
+import NotFound from './views/NotFound.vue'
+
+import zh from './lang/zh'
+import ja from './lang/ja'
+import en from './lang/en'
+
+if (process.env.NODE_ENV === 'development') {
+  // 开发时使用localhost:12450
+  axios.defaults.baseURL = 'http://localhost:12450'
+}
 
 Vue.use(VueRouter)
+Vue.use(VueI18n)
+// 初始化element
+Vue.use(Aside)
+Vue.use(Autocomplete)
+Vue.use(Badge)
+Vue.use(Button)
+Vue.use(Col)
+Vue.use(ColorPicker)
+Vue.use(Container)
+Vue.use(Divider)
+Vue.use(Form)
+Vue.use(FormItem)
+Vue.use(Image)
+Vue.use(Input)
+Vue.use(Main)
+Vue.use(Menu)
+Vue.use(MenuItem)
+Vue.use(Row)
+Vue.use(Scrollbar)
+Vue.use(Slider)
+Vue.use(Submenu)
+Vue.use(Switch)
+Vue.use(TabPane)
+Vue.use(Tabs)
+Vue.use(Tooltip)
+Vue.prototype.$message = Message
+
+Vue.config.ignoredElements = [
+  /^yt-/
+]
 
 const router = new VueRouter({
   mode: 'history',
   routes: [
-    {path: '/', component: Home},
+    {
+      path: '/',
+      component: Layout,
+      children: [
+        {path: '', component: Home},
+        {path: 'stylegen', name: 'stylegen', component: StyleGenerator},
+        {path: 'help', name: 'help', component: Help}
+      ]
+    },
     {path: '/room/:roomId', name: 'room', component: Room},
     {path: '*', component: NotFound}
   ]
 })
 
+let locale = window.localStorage.lang
+if (!locale) {
+  let lang = navigator.language
+  if (lang.startsWith('zh')) {
+    locale = 'zh'
+  } else if (lang.startsWith('ja')) {
+    locale = 'ja'
+  } else {
+    locale = 'en'
+  }
+}
+const i18n = new VueI18n({
+  locale,
+  fallbackLocale: 'en',
+  messages: {
+    zh, ja, en
+  }
+})
+
 new Vue({
   render: h => h(App),
-  router
+  router,
+  i18n
 }).$mount('#app')

frontend/src/utils.js

@@ -0,0 +1,43 @@
+export function mergeConfig (config, defaultConfig) {
+  let res = {}
+  for (let i in defaultConfig) {
+    res[i] = i in config ? config[i] : defaultConfig[i]
+  }
+  return res
+}
+
+export function toBool (val) {
+  if (typeof val === 'string') {
+    return ['false', 'no', 'off', '0', ''].indexOf(val.toLowerCase()) === -1
+  }
+  return !!val
+}
+
+export function toInt (val, _default) {
+  let res = parseInt(val)
+  if (isNaN(res)) {
+    res = _default
+  }
+  return res
+}
+
+export function formatCurrency (price) {
+  return new Intl.NumberFormat('zh-CN', {
+    minimumFractionDigits: price < 100 ? 2 : 0
+  }).format(price)
+}
+
+export function getTimeTextHourMin (date) {
+  let hour = date.getHours()
+  let min = ('00' + date.getMinutes()).slice(-2)
+  return `${hour}:${min}`
+}
+
+export function getUuid4Hex () {
+  let chars = []
+  for (let i = 0; i < 32; i++) {
+    let char = Math.floor(Math.random() * 16).toString(16)
+    chars.push(char)
+  }
+  return chars.join('')
+}

frontend/src/views/Help.vue

@@ -0,0 +1,23 @@
+<template>
+  <div>
+    <h1>{{$t('help.help')}}</h1>
+    <p>{{$t('help.p1')}}</p>
+    <p><el-image src="/static/img/tutorial/tutorial-1.png"></el-image></p>
+    <p>{{$t('help.p2')}}</p>
+    <p><el-image src="/static/img/tutorial/tutorial-2.png"></el-image></p>
+    <p>{{$t('help.p3')}}</p>
+    <p><el-image src="/static/img/tutorial/tutorial-3.png"></el-image></p>
+    <p>{{$t('help.p4')}}</p>
+    <p><el-image src="/static/img/tutorial/tutorial-4.png"></el-image></p>
+    <p>{{$t('help.p5')}}</p>
+    <p><el-image src="/static/img/tutorial/tutorial-5.png"></el-image></p>
+    <p><br><br><br><br><br><br><br><br>--------------------------------------------------------------------------------------------------------</p>
+    <p>喜欢的话可以推荐给别人，专栏求支持_(:з」∠)_  <a href="https://www.bilibili.com/read/cv4594365" target="_blank">https://www.bilibili.com/read/cv4594365</a></p>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'Help'
+}
+</script>

frontend/src/views/Home.vue

@@ -0,0 +1,184 @@
+<template>
+  <el-form :model="form" ref="form" label-width="150px" :rules="{
+    roomId: [
+      {required: true, message: $t('home.roomIdEmpty'), trigger: 'blur'},
+      {type: 'integer', min: 1, message: $t('home.roomIdInteger'), trigger: 'blur'}
+    ]
+  }">
+    <el-tabs>
+      <el-tab-pane :label="$t('home.general')">
+        <el-form-item :label="$t('home.roomId')" required prop="roomId">
+          <el-input v-model.number="form.roomId" type="number" min="1"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('home.showDanmaku')">
+          <el-switch v-model="form.showDanmaku"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.showGift')">
+          <el-switch v-model="form.showGift"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.showGiftName')">
+          <el-switch v-model="form.showGiftName"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.mergeSimilarDanmaku')">
+          <el-switch v-model="form.mergeSimilarDanmaku"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.mergeGift')">
+          <el-switch v-model="form.mergeGift"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.minGiftPrice')">
+          <el-input v-model.number="form.minGiftPrice" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('home.maxNumber')">
+          <el-input v-model.number="form.maxNumber" type="number" min="1"></el-input>
+        </el-form-item>
+      </el-tab-pane>
+
+      <el-tab-pane :label="$t('home.block')">
+        <el-form-item :label="$t('home.giftDanmaku')">
+          <el-switch v-model="form.blockGiftDanmaku"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.blockLevel')">
+          <el-slider v-model="form.blockLevel" show-input :min="0" :max="60"></el-slider>
+        </el-form-item>
+        <el-form-item :label="$t('home.informalUser')">
+          <el-switch v-model="form.blockNewbie"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.unverifiedUser')">
+          <el-switch v-model="form.blockNotMobileVerified"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.blockKeywords')">
+          <el-input v-model="form.blockKeywords" type="textarea" :rows="5" :placeholder="$t('home.onePerLine')"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('home.blockUsers')">
+          <el-input v-model="form.blockUsers" type="textarea" :rows="5" :placeholder="$t('home.onePerLine')"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('home.blockMedalLevel')">
+          <el-slider v-model="form.blockMedalLevel" show-input :min="0" :max="40"></el-slider>
+        </el-form-item>
+      </el-tab-pane>
+
+      <el-tab-pane :label="$t('home.advanced')">
+        <el-form-item :label="$t('home.relayMessagesByServer')">
+          <el-switch v-model="form.relayMessagesByServer"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('home.autoTranslate')">
+          <el-switch v-model="form.autoTranslate" :disabled="!serverConfig.enableTranslate || !form.relayMessagesByServer"></el-switch>
+        </el-form-item>
+      </el-tab-pane>
+    </el-tabs>
+
+    <el-divider></el-divider>
+    <el-form-item :label="$t('home.roomUrl')">
+      <el-input ref="roomUrlInput" readonly :value="obsRoomUrl" style="width: calc(100% - 8em); margin-right: 1em;"></el-input>
+      <el-button type="primary" @click="copyUrl">{{$t('home.copy')}}</el-button>
+    </el-form-item>
+    <el-form-item>
+      <el-button type="primary" :disabled="!roomUrl" @click="enterRoom">{{$t('home.enterRoom')}}</el-button>
+      <el-button type="primary" @click="exportConfig">{{$t('home.exportConfig')}}</el-button>
+      <el-button type="primary" @click="importConfig">{{$t('home.importConfig')}}</el-button>
+    </el-form-item>
+  </el-form>
+</template>
+
+<script>
+import _ from 'lodash'
+import axios from 'axios'
+import download from 'downloadjs'
+
+import {mergeConfig} from '@/utils'
+import * as chatConfig from '@/api/chatConfig'
+
+export default {
+  name: 'Home',
+  data() {
+    return {
+      serverConfig: {
+        enableTranslate: true,
+        loaderUrl: ''
+      },
+      form: {
+        roomId: parseInt(window.localStorage.roomId || '1'),
+        ...chatConfig.getLocalConfig()
+      }
+    }
+  },
+  computed: {
+    roomUrl() {
+      if (this.form.roomId === '') {
+        return ''
+      }
+      let query = {...this.form}
+      delete query.roomId
+      let resolved = this.$router.resolve({name: 'room', params: {roomId: this.form.roomId}, query})
+      return `${window.location.protocol}//${window.location.host}${resolved.href}`
+    },
+    obsRoomUrl() {
+      if (this.roomUrl === '') {
+        return ''
+      }
+      if (this.serverConfig.loaderUrl === '') {
+        return this.roomUrl
+      }
+      let url = new URL(this.serverConfig.loaderUrl)
+      url.searchParams.append('url', this.roomUrl)
+      return url.href
+    }
+  },
+  watch: {
+    roomUrl: _.debounce(function() {
+      window.localStorage.roomId = this.form.roomId
+      chatConfig.setLocalConfig(this.form)
+    }, 500)
+  },
+  mounted() {
+    this.updateServerConfig()
+  },
+  methods: {
+    async updateServerConfig() {
+      try {
+        this.serverConfig = (await axios.get('/api/server_info')).data.config
+      } catch (e) {
+        this.$message.error('Failed to fetch server information: ' + e)
+      }
+    },
+    enterRoom() {
+      window.open(this.roomUrl, `room ${this.form.roomId}`, 'menubar=0,location=0,scrollbars=0,toolbar=0,width=600,height=600')
+    },
+    copyUrl() {
+      this.$refs.roomUrlInput.select()
+      document.execCommand('Copy')
+    },
+    exportConfig() {
+      let cfg = mergeConfig(this.form, chatConfig.DEFAULT_CONFIG)
+      download(JSON.stringify(cfg, null, 2), 'blivechat.json', 'application/json')
+    },
+    importConfig() {
+      let input = document.createElement('input')
+      input.type = 'file'
+      input.accept = 'application/json'
+      input.onchange = () => {
+        let reader = new window.FileReader()
+        reader.onload = () => {
+          let cfg
+          try {
+            cfg = JSON.parse(reader.result)
+          } catch (e) {
+            this.$message.error(this.$t('home.failedToParseConfig') + e)
+            return
+          }
+          cfg = mergeConfig(cfg, chatConfig.DEFAULT_CONFIG)
+          this.form = {roomId: this.form.roomId, ...cfg}
+        }
+        reader.readAsText(input.files[0])
+      }
+      input.click()
+    }
+  }
+}
+</script>
+
+<style scoped>
+.el-form {
+  max-width: 800px;
+}
+</style>

frontend/src/views/Room.vue

@@ -0,0 +1,220 @@
+<template>
+  <chat-renderer ref="renderer" :maxNumber="config.maxNumber" :showGiftName="config.showGiftName"></chat-renderer>
+</template>
+
+<script>
+import {mergeConfig, toBool, toInt} from '@/utils'
+import * as chatConfig from '@/api/chatConfig'
+import ChatClientDirect from '@/api/chat/ChatClientDirect'
+import ChatClientRelay from '@/api/chat/ChatClientRelay'
+import ChatRenderer from '@/components/ChatRenderer'
+import * as constants from '@/components/ChatRenderer/constants'
+
+export default {
+  name: 'Room',
+  components: {
+    ChatRenderer
+  },
+  data() {
+    return {
+      config: {...chatConfig.DEFAULT_CONFIG},
+      chatClient: null
+    }
+  },
+  computed: {
+    blockKeywords() {
+      return this.config.blockKeywords.split('\n').filter(val => val)
+    },
+    blockUsers() {
+      return this.config.blockUsers.split('\n').filter(val => val)
+    }
+  },
+  created() {
+    this.initConfig()
+    this.initChatClient()
+    // 提示用户已加载
+    this.$message({
+      message: 'Loaded',
+      duration: '500'
+    })
+  },
+  beforeDestroy() {
+    if (this.chatClient) {
+      this.chatClient.stop()
+    }
+  },
+  methods: {
+    initConfig() {
+      let cfg = {}
+      // 留空的使用默认值
+      for (let i in this.$route.query) {
+        if (this.$route.query[i] !== '') {
+          cfg[i] = this.$route.query[i]
+        }
+      }
+      cfg = mergeConfig(cfg, chatConfig.DEFAULT_CONFIG)
+
+      cfg.minGiftPrice = toInt(cfg.minGiftPrice, chatConfig.DEFAULT_CONFIG.minGiftPrice)
+      cfg.showDanmaku = toBool(cfg.showDanmaku)
+      cfg.showGift = toBool(cfg.showGift)
+      cfg.showGiftName = toBool(cfg.showGiftName)
+      cfg.mergeSimilarDanmaku = toBool(cfg.mergeSimilarDanmaku)
+      cfg.mergeGift = toBool(cfg.mergeGift)
+      cfg.maxNumber = toInt(cfg.maxNumber, chatConfig.DEFAULT_CONFIG.maxNumber)
+      cfg.blockGiftDanmaku = toBool(cfg.blockGiftDanmaku)
+      cfg.blockLevel = toInt(cfg.blockLevel, chatConfig.DEFAULT_CONFIG.blockLevel)
+      cfg.blockNewbie = toBool(cfg.blockNewbie)
+      cfg.blockNotMobileVerified = toBool(cfg.blockNotMobileVerified)
+      cfg.blockMedalLevel = toInt(cfg.blockMedalLevel, chatConfig.DEFAULT_CONFIG.blockMedalLevel)
+      cfg.relayMessagesByServer = toBool(cfg.relayMessagesByServer)
+      cfg.autoTranslate = toBool(cfg.autoTranslate)
+
+      this.config = cfg
+    },
+    initChatClient() {
+      let roomId = parseInt(this.$route.params.roomId)
+      if (!this.config.relayMessagesByServer) {
+        this.chatClient = new ChatClientDirect(roomId)
+      } else {
+        this.chatClient = new ChatClientRelay(roomId, this.config.autoTranslate)
+      }
+      this.chatClient.onAddText = this.onAddText
+      this.chatClient.onAddGift = this.onAddGift
+      this.chatClient.onAddMember = this.onAddMember
+      this.chatClient.onAddSuperChat = this.onAddSuperChat
+      this.chatClient.onDelSuperChat = this.onDelSuperChat
+      this.chatClient.onUpdateTranslation = this.onUpdateTranslation
+      this.chatClient.start()
+    },
+
+    onAddText(data) {
+      if (!this.config.showDanmaku || !this.filterTextMessage(data) || this.mergeSimilarText(data.content)) {
+        return
+      }
+      let message = {
+        id: data.id,
+        type: constants.MESSAGE_TYPE_TEXT,
+        avatarUrl: data.avatarUrl,
+        time: new Date(data.timestamp * 1000),
+        authorName: data.authorName,
+        authorType: data.authorType,
+        content: data.content,
+        privilegeType: data.privilegeType,
+        repeated: 1,
+        translation: data.translation
+      }
+      this.$refs.renderer.addMessage(message)
+    },
+    onAddGift(data) {
+      if (!this.config.showGift) {
+        return
+      }
+      let price = data.totalCoin / 1000
+      if (this.mergeSimilarGift(data.authorName, price, data.giftName, data.num)) {
+        return
+      }
+      if (price < this.config.minGiftPrice) { // 丢人
+        return
+      }
+      let message = {
+        id: data.id,
+        type: constants.MESSAGE_TYPE_GIFT,
+        avatarUrl: data.avatarUrl,
+        time: new Date(data.timestamp * 1000),
+        authorName: data.authorName,
+        price: price,
+        giftName: data.giftName,
+        num: data.num
+      }
+      this.$refs.renderer.addMessage(message)
+    },
+    onAddMember(data) {
+      if (!this.config.showGift || !this.filterNewMemberMessage(data)) {
+        return
+      }
+      let message = {
+        id: data.id,
+        type: constants.MESSAGE_TYPE_MEMBER,
+        avatarUrl: data.avatarUrl,
+        time: new Date(data.timestamp * 1000),
+        authorName: data.authorName,
+        privilegeType: data.privilegeType,
+        title: 'New member'
+      }
+      this.$refs.renderer.addMessage(message)
+    },
+    onAddSuperChat(data) {
+      if (!this.config.showGift || !this.filterSuperChatMessage(data)) {
+        return
+      }
+      if (data.price < this.config.minGiftPrice) { // 丢人
+        return
+      }
+      let message = {
+        id: data.id,
+        type: constants.MESSAGE_TYPE_SUPER_CHAT,
+        avatarUrl: data.avatarUrl,
+        authorName: data.authorName,
+        price: data.price,
+        time: new Date(data.timestamp * 1000),
+        content: data.content.trim()
+      }
+      this.$refs.renderer.addMessage(message)
+    },
+    onDelSuperChat(data) {
+      for (let id of data.ids) {
+        this.$refs.renderer.delMessage(id)
+      }
+    },
+    onUpdateTranslation(data) {
+      if (!this.config.autoTranslate) {
+        return
+      }
+      this.$refs.renderer.updateMessage(data.id, {translation: data.translation})
+    },
+
+    filterTextMessage(data) {
+      if (this.config.blockGiftDanmaku && data.isGiftDanmaku) {
+        return false
+      } else if (this.config.blockLevel > 0 && data.authorLevel < this.config.blockLevel) {
+        return false
+      } else if (this.config.blockNewbie && data.isNewbie) {
+        return false
+      } else if (this.config.blockNotMobileVerified && !data.isMobileVerified) {
+        return false
+      } else if (this.config.blockMedalLevel > 0 && data.medalLevel < this.config.blockMedalLevel) {
+        return false
+      }
+      return this.filterSuperChatMessage(data)
+    },
+    filterSuperChatMessage(data) {
+      for (let keyword of this.blockKeywords) {
+        if (data.content.indexOf(keyword) !== -1) {
+          return false
+        }
+      }
+      return this.filterNewMemberMessage(data)
+    },
+    filterNewMemberMessage(data) {
+      for (let user of this.blockUsers) {
+        if (data.authorName === user) {
+          return false
+        }
+      }
+      return true
+    },
+    mergeSimilarText(content) {
+      if (!this.config.mergeSimilarDanmaku) {
+        return false
+      }
+      return this.$refs.renderer.mergeSimilarText(content)
+    },
+    mergeSimilarGift(authorName, price, giftName, num) {
+      if (!this.config.mergeGift) {
+        return false
+      }
+      return this.$refs.renderer.mergeSimilarGift(authorName, price, giftName, num)
+    }
+  }
+}
+</script>

frontend/src/views/StyleGenerator/index.vue

@@ -0,0 +1,405 @@
+<template>
+  <el-row :gutter="20">
+    <el-col :span="12">
+      <el-form label-width="150px" size="mini">
+        <h3>{{$t('stylegen.outlines')}}</h3>
+        <el-form-item :label="$t('stylegen.showOutlines')">
+          <el-switch v-model="form.showOutlines"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.outlineSize')">
+          <el-input v-model.number="form.outlineSize" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.outlineColor')">
+          <el-color-picker v-model="form.outlineColor"></el-color-picker>
+        </el-form-item>
+
+        <h3>{{$t('stylegen.avatars')}}</h3>
+        <el-form-item :label="$t('stylegen.showAvatars')">
+          <el-switch v-model="form.showAvatars"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.avatarSize')">
+          <el-input v-model.number="form.avatarSize" type="number" min="0"></el-input>
+        </el-form-item>
+
+        <h3>{{$t('stylegen.userNames')}}</h3>
+        <el-form-item :label="$t('stylegen.showUserNames')">
+          <el-switch v-model="form.showUserNames"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.font')">
+          <el-autocomplete v-model="form.userNameFont" :fetch-suggestions="getFontSuggestions"></el-autocomplete>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.fontSize')">
+          <el-input v-model.number="form.userNameFontSize" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.lineHeight')">
+          <el-input v-model.number="form.userNameLineHeight" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.normalColor')">
+          <el-color-picker v-model="form.userNameColor"></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.ownerColor')">
+          <el-color-picker v-model="form.ownerUserNameColor"></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.moderatorColor')">
+          <el-color-picker v-model="form.moderatorUserNameColor"></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.memberColor')">
+          <el-color-picker v-model="form.memberUserNameColor"></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.showBadges')">
+          <el-switch v-model="form.showBadges"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.showColon')">
+          <el-switch v-model="form.showColon"></el-switch>
+        </el-form-item>
+
+        <h3>{{$t('stylegen.messages')}}</h3>
+        <el-form-item :label="$t('stylegen.font')">
+          <el-autocomplete v-model="form.messageFont" :fetch-suggestions="getFontSuggestions"></el-autocomplete>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.fontSize')">
+          <el-input v-model.number="form.messageFontSize" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.lineHeight')">
+          <el-input v-model.number="form.messageLineHeight" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.color')">
+          <el-color-picker v-model="form.messageColor"></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.onNewLine')">
+          <el-switch v-model="form.messageOnNewLine"></el-switch>
+        </el-form-item>
+
+        <h3>{{$t('stylegen.time')}}</h3>
+        <el-form-item :label="$t('stylegen.showTime')">
+          <el-switch v-model="form.showTime"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.font')">
+          <el-autocomplete v-model="form.timeFont" :fetch-suggestions="getFontSuggestions"></el-autocomplete>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.fontSize')">
+          <el-input v-model.number="form.timeFontSize" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.lineHeight')">
+          <el-input v-model.number="form.timeLineHeight" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.color')">
+          <el-color-picker v-model="form.timeColor"></el-color-picker>
+        </el-form-item>
+
+        <h3>{{$t('stylegen.backgrounds')}}</h3>
+        <el-form-item :label="$t('stylegen.bgColor')">
+          <el-color-picker v-model="form.bgColor" show-alpha></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.useBarsInsteadOfBg')">
+          <el-switch v-model="form.useBarsInsteadOfBg"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.messageBgColor')">
+          <el-color-picker v-model="form.messageBgColor" show-alpha></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.ownerMessageBgColor')">
+          <el-color-picker v-model="form.ownerMessageBgColor" show-alpha></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.moderatorMessageBgColor')">
+          <el-color-picker v-model="form.moderatorMessageBgColor" show-alpha></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.memberMessageBgColor')">
+          <el-color-picker v-model="form.memberMessageBgColor" show-alpha></el-color-picker>
+        </el-form-item>
+
+        <h3>{{$t('stylegen.scAndNewMember')}}</h3>
+        <el-form-item :label="$t('stylegen.firstLineFont')">
+          <el-autocomplete v-model="form.firstLineFont" :fetch-suggestions="getFontSuggestions"></el-autocomplete>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.firstLineFontSize')">
+          <el-input v-model.number="form.firstLineFontSize" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.firstLineLineHeight')">
+          <el-input v-model.number="form.firstLineLineHeight" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.firstLineColor')">
+          <el-color-picker v-model="form.firstLineColor"></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.secondLineFont')">
+          <el-autocomplete v-model="form.secondLineFont" :fetch-suggestions="getFontSuggestions"></el-autocomplete>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.secondLineFontSize')">
+          <el-input v-model.number="form.secondLineFontSize" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.secondLineLineHeight')">
+          <el-input v-model.number="form.secondLineLineHeight" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.secondLineColor')">
+          <el-color-picker v-model="form.secondLineColor"></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.scContentLineFont')">
+          <el-autocomplete v-model="form.scContentFont" :fetch-suggestions="getFontSuggestions"></el-autocomplete>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.scContentLineFontSize')">
+          <el-input v-model.number="form.scContentFontSize" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.scContentLineLineHeight')">
+          <el-input v-model.number="form.scContentLineHeight" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.scContentLineColor')">
+          <el-color-picker v-model="form.scContentColor"></el-color-picker>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.showNewMemberBg')">
+          <el-switch v-model="form.showNewMemberBg"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.showScTicker')">
+          <el-switch v-model="form.showScTicker"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.showOtherThings')">
+          <el-switch v-model="form.showOtherThings"></el-switch>
+        </el-form-item>
+
+        <h3>{{$t('stylegen.animation')}}</h3>
+        <el-form-item :label="$t('stylegen.animateIn')">
+          <el-switch v-model="form.animateIn"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.fadeInTime')">
+          <el-input v-model.number="form.fadeInTime" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.animateOut')">
+          <el-switch v-model="form.animateOut"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.animateOutWaitTime')">
+          <el-input v-model.number="form.animateOutWaitTime" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.fadeOutTime')">
+          <el-input v-model.number="form.fadeOutTime" type="number" min="0"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.slide')">
+          <el-switch v-model="form.slide"></el-switch>
+        </el-form-item>
+        <el-form-item :label="$t('stylegen.reverseSlide')">
+          <el-switch v-model="form.reverseSlide"></el-switch>
+        </el-form-item>
+        <el-form-item>
+          <el-button type="primary" @click="playAnimation">{{$t('stylegen.playAnimation')}}</el-button>
+        </el-form-item>
+
+        <h3>{{$t('stylegen.result')}}</h3>
+        <el-form-item label="CSS">
+          <el-input v-model="result" ref="result" type="textarea" :rows="20"></el-input>
+        </el-form-item>
+        <el-form-item>
+          <el-button type="primary" @click="copyResult">{{$t('stylegen.copy')}}</el-button>
+          <el-button @click="resetConfig">{{$t('stylegen.resetConfig')}}</el-button>
+        </el-form-item>
+      </el-form>
+    </el-col>
+    <el-col :span="12">
+      <div ref="exampleContainer" id="example-container">
+        <div id="fakebody">
+          <chat-renderer ref="renderer" :css="exampleCss"></chat-renderer>
+        </div>
+      </div>
+    </el-col>
+  </el-row>
+</template>
+
+<script>
+import _ from 'lodash'
+
+import * as stylegen from './stylegen'
+import * as fonts from './fonts'
+import ChatRenderer from '@/components/ChatRenderer'
+import * as constants from '@/components/ChatRenderer/constants'
+
+let time = new Date()
+let textMessageTemplate = {
+  id: 0,
+  addTime: time,
+  type: constants.MESSAGE_TYPE_TEXT,
+  avatarUrl: 'https://static.hdslb.com/images/member/noface.gif',
+  time: time,
+  authorName: '',
+  authorType: constants.AUTHRO_TYPE_NORMAL,
+  content: '',
+  privilegeType: 0,
+  repeated: 1,
+  translation: ''
+}
+let membershipItemTemplate = {
+  id: 0,
+  addTime: time,
+  type: constants.MESSAGE_TYPE_MEMBER,
+  avatarUrl: 'https://static.hdslb.com/images/member/noface.gif',
+  time: time,
+  authorName: '',
+  privilegeType: 3,
+  title: 'New member'
+}
+let paidMessageTemplate = {
+  id: 0,
+  addTime: time,
+  type: constants.MESSAGE_TYPE_SUPER_CHAT,
+  avatarUrl: 'https://static.hdslb.com/images/member/noface.gif',
+  authorName: '',
+  price: 0,
+  time: time,
+  content: '',
+  translation: ''
+}
+let nextId = 0
+const EXAMPLE_MESSAGES = [
+  {
+    ...textMessageTemplate,
+    id: (nextId++).toString(),
+    authorName: 'mob路人',
+    content: '8888888888',
+    repeated: 12
+  },
+  {
+    ...textMessageTemplate,
+    id: (nextId++).toString(),
+    authorName: 'member舰长',
+    authorType:  constants.AUTHRO_TYPE_MEMBER,
+    content: '草',
+    privilegeType: 3,
+    repeated: 3
+  },
+  {
+    ...textMessageTemplate,
+    id: (nextId++).toString(),
+    authorName: 'admin房管',
+    authorType: constants.AUTHRO_TYPE_ADMIN,
+    content: 'kksk'
+  },
+  {
+    ...membershipItemTemplate,
+    id: (nextId++).toString(),
+    authorName: '艾米亚official'
+  },
+  {
+    ...paidMessageTemplate,
+    id: (nextId++).toString(),
+    authorName: '愛里紗メイプル',
+    price: 66600,
+    content: 'Sent 小电视飞船x100'
+  },
+  {
+    ...textMessageTemplate,
+    id: (nextId++).toString(),
+    authorName: 'streamer主播',
+    authorType: constants.AUTHRO_TYPE_OWNER,
+    content: '老板大气，老板身体健康'
+  },
+  {
+    ...paidMessageTemplate,
+    id: (nextId++).toString(),
+    authorName: 'AstralisUP',
+    price: 30,
+    content: '言いたいことがあるんだよ！'
+  }
+]
+
+export default {
+  name: 'StyleGenerator',
+  components: {
+    ChatRenderer
+  },
+  data() {
+    let stylegenConfig = stylegen.getLocalConfig()
+    let result = stylegen.getStyle(stylegenConfig)
+    return {
+      FONTS: [...fonts.LOCAL_FONTS, ...fonts.NETWORK_FONTS],
+
+      form: {...stylegenConfig},
+      result,
+      exampleCss: result.replace(/^body\b/gm, '#fakebody'),
+    }
+  },
+  computed: {
+    computedResult() {
+      return stylegen.getStyle(this.form)
+    }
+  },
+  watch: {
+    computedResult: _.debounce(function(val) {
+      this.result = val
+      stylegen.setLocalConfig(this.form)
+    }, 500),
+    result(val) {
+      this.exampleCss = val.replace(/^body\b/gm, '#fakebody')
+    }
+  },
+  mounted() {
+    this.$refs.renderer.addMessages(EXAMPLE_MESSAGES)
+
+    let observer = new MutationObserver(() => this.$refs.renderer.scrollToBottom())
+    observer.observe(this.$refs.exampleContainer, {attributes: true})
+  },
+  methods: {
+    getFontSuggestions(query, callback) {
+      let res = this.FONTS.map(font => {return {value: font}})
+      if (query) {
+        query = query.toLowerCase()
+        res = res.filter(
+          font => font.value.toLowerCase().indexOf(query) !== -1
+        )
+      }
+      callback(res)
+    },
+    playAnimation() {
+      this.$refs.renderer.clearMessages()
+      this.$nextTick(() => this.$refs.renderer.addMessages(EXAMPLE_MESSAGES))
+    },
+    copyResult() {
+      this.$refs.result.select()
+      document.execCommand('Copy')
+    },
+    resetConfig() {
+      this.form = {...stylegen.DEFAULT_CONFIG}
+    }
+  }
+}
+</script>
+
+<style scoped>
+.el-form {
+  max-width: 800px;
+}
+
+#example-container {
+  position: fixed;
+  top: 30px;
+  left: calc(210px + 40px + (100vw - 210px - 40px) / 2);
+  width: calc((100vw - 210px - 40px) / 2 - 40px - 30px);
+  height: calc(100vh - 110px);
+
+  background-color: #444;
+  background-image:
+    -moz-linear-gradient(45deg, #333 25%, transparent 25%),
+    -moz-linear-gradient(-45deg, #333 25%, transparent 25%),
+    -moz-linear-gradient(45deg, transparent 75%, #333 75%),
+    -moz-linear-gradient(-45deg, transparent 75%, #333 75%);
+  background-image:
+    -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.25, #333), color-stop(.25, transparent)),
+    -webkit-gradient(linear, 0 0, 100% 100%, color-stop(.25, #333), color-stop(.25, transparent)),
+    -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.75, transparent), color-stop(.75, #333)),
+    -webkit-gradient(linear, 0 0, 100% 100%, color-stop(.75, transparent), color-stop(.75, #333));
+
+  -moz-background-size:32px 32px;
+  background-size:32px 32px;
+  -webkit-background-size:32px 32px;
+
+  background-position:0 0, 16px 0, 16px -16px, 0px 16px;
+
+  padding: 25px;
+
+  resize: both;
+  overflow: hidden;
+}
+
+.app-wrapper.mobile #example-container {
+  display: none;
+}
+
+#fakebody {
+  outline: 1px #999 dashed;
+  height: 100%;
+}
+</style>

frontend/src/views/StyleGenerator/stylegen.js

@@ -0,0 +1,430 @@
+import {mergeConfig} from '@/utils'
+import * as fonts from './fonts'
+
+export const DEFAULT_CONFIG = {
+  showOutlines: true,
+  outlineSize: 2,
+  outlineColor: '#000000',
+
+  showAvatars: true,
+  avatarSize: 24,
+
+  showUserNames: true,
+  userNameFont: 'Changa One',
+  userNameFontSize: 20,
+  userNameLineHeight: 0,
+  userNameColor: '#cccccc',
+  ownerUserNameColor: '#ffd600',
+  moderatorUserNameColor: '#5e84f1',
+  memberUserNameColor: '#0f9d58',
+  showBadges: true,
+  showColon: true,
+
+  messageFont: 'Imprima',
+  messageFontSize: 18,
+  messageLineHeight: 0,
+  messageColor: '#ffffff',
+  messageOnNewLine: false,
+
+  showTime: false,
+  timeFont: 'Imprima',
+  timeFontSize: 16,
+  timeLineHeight: 0,
+  timeColor: '#999999',
+
+  bgColor: 'rgba(0, 0, 0, 0)',
+  useBarsInsteadOfBg: false,
+  messageBgColor: 'rgba(204, 204, 204, 0)',
+  ownerMessageBgColor: 'rgba(255, 214, 0, 0)',
+  moderatorMessageBgColor: 'rgba(94, 132, 241, 0)',
+  memberMessageBgColor: 'rgba(15, 157, 88, 0)',
+
+  firstLineFont: 'Changa One',
+  firstLineFontSize: 20,
+  firstLineLineHeight: 0,
+  firstLineColor: '#ffffff',
+  secondLineFont: 'Imprima',
+  secondLineFontSize: 18,
+  secondLineLineHeight: 0,
+  secondLineColor: '#ffffff',
+  scContentFont: 'Imprima',
+  scContentFontSize: 18,
+  scContentLineHeight: 0,
+  scContentColor: '#ffffff',
+  showNewMemberBg: true,
+  showScTicker: false,
+  showOtherThings: true,
+
+  animateIn: false,
+  fadeInTime: 200, // ms
+  animateOut: false,
+  animateOutWaitTime: 30, // s
+  fadeOutTime: 200, // ms
+  slide: false,
+  reverseSlide: false
+}
+
+const FALLBACK_FONTS = ', "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "\\5FAE\\8F6F\\96C5\\9ED1", SimHei, Arial, sans-serif'
+
+export function setLocalConfig (config) {
+  config = mergeConfig(config, DEFAULT_CONFIG)
+  window.localStorage.stylegenConfig = JSON.stringify(config)
+}
+
+export function getLocalConfig () {
+  if (!window.localStorage.stylegenConfig) {
+    return DEFAULT_CONFIG
+  }
+  return mergeConfig(JSON.parse(window.localStorage.stylegenConfig), DEFAULT_CONFIG)
+}
+
+export function getStyle (config) {
+  config = mergeConfig(config, DEFAULT_CONFIG)
+  return `${getImports(config)}
+
+/* Background colors */
+body {
+  overflow: hidden;
+  ${config.bgColor ? `background-color: ${config.bgColor};` : ''}
+}
+
+/* Transparent background. */
+yt-live-chat-renderer {
+  background-color: transparent !important;
+}
+
+${getMessageColorStyle('', config.messageBgColor, config.useBarsInsteadOfBg)}
+
+${getMessageColorStyle('owner', config.ownerMessageBgColor, config.useBarsInsteadOfBg)}
+
+${getMessageColorStyle('moderator', config.moderatorMessageBgColor, config.useBarsInsteadOfBg)}
+
+${getMessageColorStyle('member', config.memberMessageBgColor, config.useBarsInsteadOfBg)}
+
+yt-live-chat-author-chip #author-name {
+  background-color: transparent !important;
+}
+
+/* Outlines */
+yt-live-chat-renderer * {
+  ${getShowOutlinesStyle(config)}
+  font-family: "${cssEscapeStr(config.messageFont)}"${FALLBACK_FONTS};
+  font-size: ${config.messageFontSize}px !important;
+  line-height: ${config.messageLineHeight || config.messageFontSize}px !important;
+}
+
+yt-live-chat-text-message-renderer #content,
+yt-live-chat-membership-item-renderer #content {
+  overflow: initial !important;
+}
+
+/* Hide scrollbar. */
+yt-live-chat-item-list-renderer #items {
+  overflow: hidden !important;
+}
+
+yt-live-chat-item-list-renderer #item-scroller {
+  overflow: hidden !important;
+}
+
+/* Hide header and input. */
+yt-live-chat-header-renderer,
+yt-live-chat-message-input-renderer {
+  display: none !important;
+}
+
+/* Reduce side padding. */
+yt-live-chat-text-message-renderer {
+  ${getPaddingStyle(config)}
+}
+
+/* Avatars. */
+yt-live-chat-text-message-renderer #author-photo,
+yt-live-chat-text-message-renderer #author-photo img,
+yt-live-chat-paid-message-renderer #author-photo,
+yt-live-chat-paid-message-renderer #author-photo img,
+yt-live-chat-membership-item-renderer #author-photo,
+yt-live-chat-membership-item-renderer #author-photo img {
+  ${config.showAvatars ? '' : 'display: none !important;'}
+  width: ${config.avatarSize}px !important;
+  height: ${config.avatarSize}px !important;
+  border-radius: ${config.avatarSize}px !important;
+  margin-right: ${config.avatarSize / 4}px !important;
+}
+
+/* Hide badges. */
+yt-live-chat-text-message-renderer #chat-badges {
+  ${config.showBadges ? '' : 'display: none !important;'}
+  vertical-align: text-top !important;
+}
+
+/* Timestamps. */
+yt-live-chat-text-message-renderer #timestamp {
+  display: ${config.showTime ? 'inline' : 'none'} !important;
+  ${config.timeColor ? `color: ${config.timeColor} !important;` : ''}
+  font-family: "${cssEscapeStr(config.timeFont)}"${FALLBACK_FONTS};
+  font-size: ${config.timeFontSize}px !important;
+  line-height: ${config.timeLineHeight || config.timeFontSize}px !important;
+}
+
+/* Badges. */
+yt-live-chat-text-message-renderer #author-name[type="owner"],
+yt-live-chat-text-message-renderer yt-live-chat-author-badge-renderer[type="owner"] {
+  ${config.ownerUserNameColor ? `color: ${config.ownerUserNameColor} !important;` : ''}
+}
+
+yt-live-chat-text-message-renderer #author-name[type="moderator"],
+yt-live-chat-text-message-renderer yt-live-chat-author-badge-renderer[type="moderator"] {
+  ${config.moderatorUserNameColor ? `color: ${config.moderatorUserNameColor} !important;` : ''}
+}
+
+yt-live-chat-text-message-renderer #author-name[type="member"],
+yt-live-chat-text-message-renderer yt-live-chat-author-badge-renderer[type="member"] {
+  ${config.memberUserNameColor ? `color: ${config.memberUserNameColor} !important;` : ''}
+}
+
+/* Channel names. */
+yt-live-chat-text-message-renderer #author-name {
+  ${config.showUserNames ? '' : 'display: none !important;'}
+  ${config.userNameColor ? `color: ${config.userNameColor} !important;` : ''}
+  font-family: "${cssEscapeStr(config.userNameFont)}"${FALLBACK_FONTS};
+  font-size: ${config.userNameFontSize}px !important;
+  line-height: ${config.userNameLineHeight || config.userNameFontSize}px !important;
+}
+
+${getShowColonStyle(config)}
+
+/* Messages. */
+yt-live-chat-text-message-renderer #message,
+yt-live-chat-text-message-renderer #message * {
+  ${config.messageColor ? `color: ${config.messageColor} !important;` : ''}
+  font-family: "${cssEscapeStr(config.messageFont)}"${FALLBACK_FONTS};
+  font-size: ${config.messageFontSize}px !important;
+  line-height: ${config.messageLineHeight || config.messageFontSize}px !important;
+}
+
+${!config.messageOnNewLine ? '' : `yt-live-chat-text-message-renderer #message {
+  display: block !important;
+}`}
+
+/* SuperChat/Fan Funding Messages. */
+yt-live-chat-paid-message-renderer #author-name,
+yt-live-chat-paid-message-renderer #author-name *,
+yt-live-chat-membership-item-renderer #header-content-inner-column,
+yt-live-chat-membership-item-renderer #header-content-inner-column * {
+  ${config.firstLineColor ? `color: ${config.firstLineColor} !important;` : ''}
+  font-family: "${cssEscapeStr(config.firstLineFont)}"${FALLBACK_FONTS};
+  font-size: ${config.firstLineFontSize}px !important;
+  line-height: ${config.firstLineLineHeight || config.firstLineFontSize}px !important;
+}
+
+yt-live-chat-paid-message-renderer #purchase-amount,
+yt-live-chat-paid-message-renderer #purchase-amount *,
+yt-live-chat-membership-item-renderer #header-subtext,
+yt-live-chat-membership-item-renderer #header-subtext * {
+  ${config.secondLineColor ? `color: ${config.secondLineColor} !important;` : ''}
+  font-family: "${cssEscapeStr(config.secondLineFont)}"${FALLBACK_FONTS};
+  font-size: ${config.secondLineFontSize}px !important;
+  line-height: ${config.secondLineLineHeight || config.secondLineFontSize}px !important;
+}
+
+yt-live-chat-paid-message-renderer #content,
+yt-live-chat-paid-message-renderer #content * {
+  ${config.scContentColor ? `color: ${config.scContentColor} !important;` : ''}
+  font-family: "${cssEscapeStr(config.scContentFont)}"${FALLBACK_FONTS};
+  font-size: ${config.scContentFontSize}px !important;
+  line-height: ${config.scContentLineHeight || config.scContentFontSize}px !important;
+}
+
+yt-live-chat-paid-message-renderer {
+  margin: 4px 0 !important;
+}
+
+yt-live-chat-membership-item-renderer #card,
+yt-live-chat-membership-item-renderer #header {
+  ${getShowNewMemberBgStyle(config)}
+}
+
+yt-live-chat-text-message-renderer a,
+yt-live-chat-membership-item-renderer a {
+  text-decoration: none !important;
+}
+
+yt-live-chat-text-message-renderer[is-deleted],
+yt-live-chat-membership-item-renderer[is-deleted] {
+  display: none !important;
+}
+
+yt-live-chat-ticker-renderer {
+  background-color: transparent !important;
+  box-shadow: none !important;
+}
+
+${config.showScTicker ? '' : `yt-live-chat-ticker-renderer {
+  display: none !important;
+}`}
+
+${config.showOtherThings ? '' : `yt-live-chat-item-list-renderer {
+  display: none !important;
+}`}
+
+yt-live-chat-ticker-paid-message-item-renderer,
+yt-live-chat-ticker-paid-message-item-renderer *,
+yt-live-chat-ticker-sponsor-item-renderer,
+yt-live-chat-ticker-sponsor-item-renderer * {
+  ${config.secondLineColor ? `color: ${config.secondLineColor} !important;` : ''}
+  font-family: "${cssEscapeStr(config.secondLineFont)}"${FALLBACK_FONTS};
+}
+
+yt-live-chat-mode-change-message-renderer, 
+yt-live-chat-viewer-engagement-message-renderer, 
+yt-live-chat-restricted-participation-renderer {
+  display: none !important;
+}
+
+${getAnimationStyle(config)}
+`
+}
+
+function getImports (config) {
+  let fontsNeedToImport = new Set()
+  for (let name of ['userNameFont', 'messageFont', 'timeFont', 'firstLineFont', 'secondLineFont', 'scContentFont']) {
+    let font = config[name]
+    if (fonts.NETWORK_FONTS.indexOf(font) !== -1) {
+      fontsNeedToImport.add(font)
+    }
+  }
+  let res = []
+  for (let font of fontsNeedToImport) {
+    res.push(`@import url("https://fonts.googleapis.com/css?family=${encodeURIComponent(font)}");`)
+  }
+  return res.join('\n')
+}
+
+function getMessageColorStyle (authorType, color, useBarsInsteadOfBg) {
+  let typeSelector = authorType ? `[author-type="${authorType}"]` : ''
+  if (!useBarsInsteadOfBg) {
+    return `yt-live-chat-text-message-renderer${typeSelector},
+yt-live-chat-text-message-renderer${typeSelector}[is-highlighted] {
+  ${color ? `background-color: ${color} !important;` : ''}
+}`
+  } else {
+    return `yt-live-chat-text-message-renderer${typeSelector}::after {
+  ${color ? `border: 2px solid ${color};` : ''}
+  content: "";
+  position: absolute;
+  display: block;
+  left: 8px;
+  top: 4px;
+  bottom: 4px;
+  width: 1px;
+  box-sizing: border-box;
+  border-radius: 2px;
+}`
+  }
+}
+
+function getShowOutlinesStyle (config) {
+  if (!config.showOutlines || !config.outlineSize) {
+    return ''
+  }
+  let shadow = []
+  for (var x = -config.outlineSize; x <= config.outlineSize; x += Math.ceil(config.outlineSize / 4)) {
+    for (var y = -config.outlineSize; y <= config.outlineSize; y += Math.ceil(config.outlineSize / 4)) {
+      shadow.push(`${x}px ${y}px ${config.outlineColor}`)
+    }
+  }
+  return `text-shadow: ${shadow.join(', ')};`
+}
+
+function cssEscapeStr (str) {
+  let res = []
+  for (let char of str) {
+    res.push(cssEscapeChar(char))
+  }
+  return res.join('')
+}
+
+function cssEscapeChar (char) {
+  if (!needEscapeChar(char)) {
+    return char
+  }
+  let hexCode = char.codePointAt(0).toString(16)
+  // https://drafts.csswg.org/cssom/#escape-a-character-as-code-point
+  return `\\${hexCode} `
+}
+
+function needEscapeChar (char) {
+  let code = char.codePointAt(0)
+  if (0x20 <= code && code <= 0x7E) {
+    return char === '"'
+  }
+  return true
+}
+
+function getPaddingStyle (config) {
+  return `padding-left: ${config.useBarsInsteadOfBg ? 20 : 4}px !important;
+  padding-right: 4px !important;`
+}
+
+function getShowColonStyle (config) {
+  if (!config.showColon) {
+    return ''
+  }
+  return `yt-live-chat-text-message-renderer #author-name::after {
+  content: ":";
+  margin-left: ${config.outlineSize}px;
+}`
+}
+
+function getShowNewMemberBgStyle (config) {
+  if (config.showNewMemberBg) {
+    return `background-color: ${config.memberUserNameColor} !important;
+  margin: 4px 0 !important;`
+  } else {
+    return `background-color: transparent !important;
+  box-shadow: none !important;
+  margin: 0 !important;`
+  }
+}
+
+function getAnimationStyle (config) {
+  if (!config.animateIn && !config.animateOut) {
+    return ''
+  }
+  let totalTime = 0
+  if (config.animateIn) {
+    totalTime += config.fadeInTime
+  }
+  if (config.animateOut) {
+    totalTime += config.animateOutWaitTime * 1000
+    totalTime += config.fadeOutTime
+  }
+  let keyframes = []
+  let curTime = 0
+  if (config.animateIn) {
+    keyframes.push(`  0% { opacity: 0;${!config.slide ? ''
+      : ` transform: translateX(${config.reverseSlide ? 16 : -16}px);`
+    } }`)
+    curTime += config.fadeInTime
+    keyframes.push(`  ${(curTime / totalTime) * 100}% { opacity: 1; transform: none; }`)
+  }
+  if (config.animateOut) {
+    curTime += config.animateOutWaitTime * 1000
+    keyframes.push(`  ${(curTime / totalTime) * 100}% { opacity: 1; transform: none; }`)
+    curTime += config.fadeOutTime
+    keyframes.push(`  ${(curTime / totalTime) * 100}% { opacity: 0;${!config.slide ? ''
+      : ` transform: translateX(${config.reverseSlide ? -16 : 16}px);`
+    } }`)
+  }
+  return `@keyframes anim {
+${keyframes.join('\n')}
+}
+
+yt-live-chat-text-message-renderer,
+yt-live-chat-membership-item-renderer,
+yt-live-chat-paid-message-renderer {
+  animation: anim ${totalTime}ms;
+  animation-fill-mode: both;
+}`
+}

main.py

@@ -2,52 +2,99 @@
 
 import argparse
 import logging
+import logging.handlers
 import os
+import webbrowser
 
 import tornado.ioloop
 import tornado.web
 
-import chat
+import api.chat
+import api.main
+import config
+import models.avatar
+import models.database
+import models.translate
+import update
 
 logger = logging.getLogger(__name__)
 
-WEB_ROOT = os.path.join(os.path.dirname(__file__), 'frontend', 'dist')
+BASE_PATH = os.path.dirname(os.path.realpath(__file__))
+WEB_ROOT = os.path.join(BASE_PATH, 'frontend', 'dist')
+LOG_FILE_NAME = os.path.join(BASE_PATH, 'log', 'blivechat.log')
 
+routes = [
+    (r'/api/server_info', api.main.ServerInfoHandler),
+    (r'/api/chat', api.chat.ChatHandler),
+    (r'/api/room_info', api.chat.RoomInfoHandler),
+    (r'/api/avatar_url', api.chat.AvatarHandler),
 
-# noinspection PyAbstractClass
-class MainHandler(tornado.web.StaticFileHandler):
-    """为了使用Vue Router的history模式，把所有请求转发到index.html"""
-    async def get(self, *args, **kwargs):
-        await super().get('index.html', *args, **kwargs)
+    (r'/(.*)', api.main.MainHandler, {'path': WEB_ROOT, 'default_filename': 'index.html'})
+]
 
 
 def main():
-    parser = argparse.ArgumentParser(description='用于OBS的仿YouTube风格的bilibili直播聊天层')
-    parser.add_argument('--host', help='服务器host，默认为127.0.0.1', default='127.0.0.1')
-    parser.add_argument('--port', help='服务器端口，默认为80', type=int, default=80)
-    parser.add_argument('--debug', help='调试模式', action='store_true')
-    args = parser.parse_args()
+    args = parse_args()
 
+    init_logging(args.debug)
+    config.init()
+    models.database.init(args.debug)
+    models.avatar.init()
+    models.translate.init()
+    api.chat.init()
+    update.check_update()
+
+    run_server(args.host, args.port, args.debug)
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='用于OBS的仿YouTube风格的bilibili直播评论栏')
+    parser.add_argument('--host', help='服务器host，默认为127.0.0.1', default='127.0.0.1')
+    parser.add_argument('--port', help='服务器端口，默认为12450', type=int, default=12450)
+    parser.add_argument('--debug', help='调试模式', action='store_true')
+    return parser.parse_args()
+
+
+def init_logging(debug):
+    stream_handler = logging.StreamHandler()
+    file_handler = logging.handlers.TimedRotatingFileHandler(
+        LOG_FILE_NAME, encoding='utf-8', when='midnight', backupCount=7, delay=True
+    )
     logging.basicConfig(
         format='{asctime} {levelname} [{name}]: {message}',
         datefmt='%Y-%m-%d %H:%M:%S',
         style='{',
-        level=logging.INFO if not args.debug else logging.DEBUG
+        level=logging.INFO if not debug else logging.DEBUG,
+        handlers=[stream_handler, file_handler]
     )
 
+    # 屏蔽访问日志
+    logging.getLogger('tornado.access').setLevel(logging.WARNING)
+
+
+def run_server(host, port, debug):
     app = tornado.web.Application(
-        [
-            (r'/chat', chat.ChatHandler),
-            (r'/((css|img|js)/.*)', tornado.web.StaticFileHandler, {'path': WEB_ROOT}),
-            (r'/(favicon\.ico)', tornado.web.StaticFileHandler, {'path': WEB_ROOT}),
-            (r'/.*', MainHandler, {'path': WEB_ROOT})
-        ],
-        websocket_ping_interval=30,
-        debug=args.debug,
+        routes,
+        websocket_ping_interval=10,
+        debug=debug,
         autoreload=False
     )
-    app.listen(args.port, args.host)
-    logger.info('服务器启动：%s:%d', args.host, args.port)
+    cfg = config.get_config()
+    try:
+        app.listen(
+            port,
+            host,
+            xheaders=cfg.tornado_xheaders
+        )
+    except OSError:
+        logger.warning('Address is used %s:%d', host, port)
+        return
+    finally:
+        url = 'http://localhost/' if port == 80 else f'http://localhost:{port}/'
+        # 防止更新版本后浏览器加载缓存
+        url += '?_v=' + update.VERSION
+        webbrowser.open(url)
+    logger.info('Server started: %s:%d', host, port)
     tornado.ioloop.IOLoop.current().start()
 
 

models/avatar.py

@@ -0,0 +1,208 @@
+# -*- coding: utf-8 -*-
+
+import asyncio
+import datetime
+import logging
+import re
+from typing import *
+
+import aiohttp
+import sqlalchemy
+import sqlalchemy.exc
+
+import models.database
+
+logger = logging.getLogger(__name__)
+
+
+DEFAULT_AVATAR_URL = '//static.hdslb.com/images/member/noface.gif'
+
+_main_event_loop = asyncio.get_event_loop()
+_http_session = aiohttp.ClientSession()
+# user_id -> avatar_url
+_avatar_url_cache: Dict[int, str] = {}
+# 正在获取头像的Future，user_id -> Future
+_uid_fetch_future_map: Dict[int, asyncio.Future] = {}
+# 正在获取头像的user_id队列
+_uid_queue_to_fetch = asyncio.Queue(15)
+# 上次被B站ban时间
+_last_fetch_banned_time: Optional[datetime.datetime] = None
+
+
+def init():
+    asyncio.ensure_future(_get_avatar_url_from_web_consumer())
+
+
+async def get_avatar_url(user_id):
+    avatar_url = await get_avatar_url_or_none(user_id)
+    if avatar_url is None:
+        avatar_url = DEFAULT_AVATAR_URL
+    return avatar_url
+
+
+async def get_avatar_url_or_none(user_id):
+    avatar_url = get_avatar_url_from_memory(user_id)
+    if avatar_url is not None:
+        return avatar_url
+    avatar_url = await get_avatar_url_from_database(user_id)
+    if avatar_url is not None:
+        return avatar_url
+    return await get_avatar_url_from_web(user_id)
+
+
+def get_avatar_url_from_memory(user_id):
+    return _avatar_url_cache.get(user_id, None)
+
+
+def get_avatar_url_from_database(user_id) -> Awaitable[Optional[str]]:
+    return asyncio.get_event_loop().run_in_executor(
+        None, _do_get_avatar_url_from_database, user_id
+    )
+
+
+def _do_get_avatar_url_from_database(user_id):
+    try:
+        with models.database.get_session() as session:
+            user = session.query(BilibiliUser).filter(BilibiliUser.uid == user_id).one_or_none()
+            if user is None:
+                return None
+            avatar_url = user.avatar_url
+
+            # 如果离上次更新太久就更新所有缓存
+            if (datetime.datetime.now() - user.update_time).days >= 3:
+                def refresh_cache():
+                    _avatar_url_cache.pop(user_id, None)
+                    get_avatar_url_from_web(user_id)
+
+                _main_event_loop.call_soon(refresh_cache)
+            else:
+                # 否则只更新内存缓存
+                _update_avatar_cache_in_memory(user_id, avatar_url)
+    except sqlalchemy.exc.OperationalError:
+        # SQLite会锁整个文件，忽略就行
+        return None
+    except sqlalchemy.exc.SQLAlchemyError:
+        logger.exception('_do_get_avatar_url_from_database failed:')
+        return None
+    return avatar_url
+
+
+def get_avatar_url_from_web(user_id) -> Awaitable[Optional[str]]:
+    # 如果已有正在获取的future则返回，防止重复获取同一个uid
+    future = _uid_fetch_future_map.get(user_id, None)
+    if future is not None:
+        return future
+    # 否则创建一个获取任务
+    _uid_fetch_future_map[user_id] = future = _main_event_loop.create_future()
+    future.add_done_callback(lambda _future: _uid_fetch_future_map.pop(user_id, None))
+    try:
+        _uid_queue_to_fetch.put_nowait(user_id)
+    except asyncio.QueueFull:
+        future.set_result(None)
+    return future
+
+
+async def _get_avatar_url_from_web_consumer():
+    while True:
+        try:
+            user_id = await _uid_queue_to_fetch.get()
+            future = _uid_fetch_future_map.get(user_id, None)
+            if future is None:
+                continue
+
+            # 防止在被ban的时候获取
+            global _last_fetch_banned_time
+            if _last_fetch_banned_time is not None:
+                cur_time = datetime.datetime.now()
+                if (cur_time - _last_fetch_banned_time).total_seconds() < 3 * 60 + 3:
+                    # 3分钟以内被ban，解封大约要15分钟
+                    future.set_result(None)
+                    continue
+                else:
+                    _last_fetch_banned_time = None
+
+            asyncio.ensure_future(_get_avatar_url_from_web_coroutine(user_id, future))
+
+            # 限制频率，防止被B站ban
+            await asyncio.sleep(0.2)
+        except:
+            logger.exception('_get_avatar_url_from_web_consumer error:')
+
+
+async def _get_avatar_url_from_web_coroutine(user_id, future):
+    try:
+        avatar_url = await _do_get_avatar_url_from_web(user_id)
+    except BaseException as e:
+        future.set_exception(e)
+    else:
+        future.set_result(avatar_url)
+
+
+async def _do_get_avatar_url_from_web(user_id):
+    try:
+        async with _http_session.get('https://api.bilibili.com/x/space/acc/info',
+                                     params={'mid': user_id}) as r:
+            if r.status != 200:
+                logger.warning('Failed to fetch avatar: status=%d %s uid=%d', r.status, r.reason, user_id)
+                if r.status == 412:
+                    # 被B站ban了
+                    global _last_fetch_banned_time
+                    _last_fetch_banned_time = datetime.datetime.now()
+                return None
+            data = await r.json()
+    except (aiohttp.ClientConnectionError, asyncio.TimeoutError):
+        return None
+
+    avatar_url = process_avatar_url(data['data']['face'])
+    update_avatar_cache(user_id, avatar_url)
+    return avatar_url
+
+
+def process_avatar_url(avatar_url):
+    # 去掉协议，兼容HTTP、HTTPS
+    m = re.fullmatch(r'(?:https?:)?(.*)', avatar_url)
+    if m is not None:
+        avatar_url = m[1]
+    # 缩小图片加快传输
+    if not avatar_url.endswith('noface.gif'):
+        avatar_url += '@48w_48h'
+    return avatar_url
+
+
+def update_avatar_cache(user_id, avatar_url):
+    _update_avatar_cache_in_memory(user_id, avatar_url)
+    asyncio.get_event_loop().run_in_executor(
+        None, _update_avatar_cache_in_database, user_id, avatar_url
+    )
+
+
+def _update_avatar_cache_in_memory(user_id, avatar_url):
+    _avatar_url_cache[user_id] = avatar_url
+    while len(_avatar_url_cache) > 50000:
+        _avatar_url_cache.pop(next(iter(_avatar_url_cache)), None)
+
+
+def _update_avatar_cache_in_database(user_id, avatar_url):
+    try:
+        with models.database.get_session() as session:
+            user = session.query(BilibiliUser).filter(BilibiliUser.uid == user_id).one_or_none()
+            if user is None:
+                user = BilibiliUser(uid=user_id, avatar_url=avatar_url,
+                                    update_time=datetime.datetime.now())
+                session.add(user)
+            else:
+                user.avatar_url = avatar_url
+                user.update_time = datetime.datetime.now()
+            session.commit()
+    except (sqlalchemy.exc.OperationalError, sqlalchemy.exc.IntegrityError):
+        # SQLite会锁整个文件，忽略就行，另外还有多线程导致ID重复的问题
+        pass
+    except sqlalchemy.exc.SQLAlchemyError:
+        logger.exception('_update_avatar_cache_in_database failed:')
+
+
+class BilibiliUser(models.database.OrmBase):
+    __tablename__ = 'bilibili_users'
+    uid = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
+    avatar_url = sqlalchemy.Column(sqlalchemy.String(100))
+    update_time = sqlalchemy.Column(sqlalchemy.DateTime)

models/database.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+
+import contextlib
+from typing import *
+
+import sqlalchemy.ext.declarative
+import sqlalchemy.orm
+
+import config
+
+OrmBase = sqlalchemy.ext.declarative.declarative_base()
+engine = None
+DbSession: Optional[Type[sqlalchemy.orm.Session]] = None
+
+
+def init(debug):
+    cfg = config.get_config()
+    global engine, DbSession
+    # engine = sqlalchemy.create_engine(cfg.database_url, echo=debug)
+    engine = sqlalchemy.create_engine(cfg.database_url)
+    DbSession = sqlalchemy.orm.sessionmaker(bind=engine)
+
+    OrmBase.metadata.create_all(engine)
+
+
+@contextlib.contextmanager
+def get_session():
+    session = DbSession()
+    try:
+        yield session
+    except:
+        session.rollback()
+        raise
+    finally:
+        session.close()

models/translate.py

@@ -0,0 +1,419 @@
+# -*- coding: utf-8 -*-
+
+import asyncio
+import functools
+import hashlib
+import logging
+import random
+import re
+import time
+
+import yarl
+from typing import *
+
+import aiohttp
+
+logger = logging.getLogger(__name__)
+
+NO_TRANSLATE_TEXTS = {
+    '草', '草草', '草草草', '草生', '大草原', '上手', '上手上手', '理解', '理解理解', '天才', '天才天才',
+    '强', '余裕', '余裕余裕', '大丈夫', '再放送', '放送事故', '清楚', '清楚清楚'
+}
+
+_main_event_loop = asyncio.get_event_loop()
+_http_session = aiohttp.ClientSession()
+_translate_providers: List['TranslateProvider'] = []
+# text -> res
+_translate_cache: Dict[str, str] = {}
+# 正在翻译的Future，text -> Future
+_text_future_map: Dict[str, asyncio.Future] = {}
+
+
+def init():
+    asyncio.ensure_future(_do_init())
+
+
+async def _do_init():
+    # 考虑优先级
+    providers = [
+        TencentTranslate(),
+        YoudaoTranslate(),
+        BilibiliTranslate()
+    ]
+    await asyncio.gather(*(provider.init() for provider in providers))
+    global _translate_providers
+    _translate_providers = providers
+
+
+def need_translate(text):
+    text = text.strip()
+    # 没有中文，平时打不出的字不管
+    if not any(0x4E00 <= ord(c) <= 0x9FFF for c in text):
+        return False
+    # 含有日文假名
+    if any(0x3040 <= ord(c) <= 0x30FF for c in text):
+        return False
+    # 弹幕同传
+    if text.startswith('【'):
+        return False
+    # 中日双语
+    if text in NO_TRANSLATE_TEXTS:
+        return False
+    return True
+
+
+def get_translation_from_cache(text):
+    key = text.strip().lower()
+    return _translate_cache.get(key, None)
+
+
+def translate(text) -> Awaitable[Optional[str]]:
+    key = text.strip().lower()
+    # 如果已有正在翻译的future则返回，防止重复翻译
+    future = _text_future_map.get(key, None)
+    if future is not None:
+        return future
+    # 否则创建一个翻译任务
+    future = _main_event_loop.create_future()
+
+    # 查缓存
+    res = _translate_cache.get(key, None)
+    if res is not None:
+        future.set_result(res)
+        return future
+
+    for provider in _translate_providers:
+        if provider.is_available:
+            _text_future_map[key] = future
+            future.add_done_callback(functools.partial(_on_translate_done, key))
+            provider.translate(text, future)
+            return future
+
+    future.set_result(None)
+    return future
+
+
+def _on_translate_done(key, future):
+    _text_future_map.pop(key, None)
+    # 缓存
+    try:
+        res = future.result()
+    except:
+        return
+    if res is None:
+        return
+    _translate_cache[key] = res
+    while len(_translate_cache) > 50000:
+        _translate_cache.pop(next(iter(_translate_cache)), None)
+
+
+class TranslateProvider:
+    async def init(self):
+        return True
+
+    @property
+    def is_available(self):
+        return True
+
+    def translate(self, text, future):
+        raise NotImplementedError
+
+
+class TencentTranslate(TranslateProvider):
+    def __init__(self):
+        # 过期时间1小时
+        self._qtv = ''
+        self._qtk = ''
+        self._reinit_future = None
+        # 连续失败的次数
+        self._fail_count = 0
+        self._cool_down_future = None
+
+    async def init(self):
+        self._reinit_future = asyncio.ensure_future(self._reinit_coroutine())
+        return await self._do_init()
+
+    async def _do_init(self):
+        try:
+            async with _http_session.get('https://fanyi.qq.com/') as r:
+                if r.status != 200:
+                    logger.warning('TencentTranslate init request failed: status=%d %s', r.status, r.reason)
+                    return False
+                html = await r.text()
+        except (aiohttp.ClientConnectionError, asyncio.TimeoutError):
+            logger.exception('TencentTranslate init error:')
+            return False
+
+        m = re.search(r"""\bqtv\s*=\s*['"](.+?)['"]""", html)
+        if m is None:
+            logger.exception('TencentTranslate init failed: qtv not found')
+            return False
+        qtv = m[1]
+        m = re.search(r"""\bqtk\s*=\s*['"](.+?)['"]""", html)
+        if m is None:
+            logger.exception('TencentTranslate init failed: qtk not found')
+            return False
+        qtk = m[1]
+
+        self._qtv = qtv
+        self._qtk = qtk
+        return True
+
+    async def _reinit_coroutine(self):
+        try:
+            while True:
+                await asyncio.sleep(55 * 60)
+                while True:
+                    logger.info('TencentTranslate reinit')
+                    try:
+                        if await self._do_init():
+                            break
+                    except:
+                        logger.exception('TencentTranslate init error:')
+                    await asyncio.sleep(3 * 60)
+        except asyncio.CancelledError:
+            pass
+
+    @property
+    def is_available(self):
+        return self._qtv != '' and self._qtk != ''
+
+    def translate(self, text, future):
+        asyncio.ensure_future(self._translate_coroutine(text, future))
+
+    async def _translate_coroutine(self, text, future):
+        try:
+            res = await self._do_translate(text)
+        except BaseException as e:
+            future.set_exception(e)
+            self._on_fail()
+            return
+        future.set_result(res)
+        if res is None:
+            self._on_fail()
+        else:
+            self._fail_count = 0
+
+    async def _do_translate(self, text):
+        try:
+            async with _http_session.post(
+                'https://fanyi.qq.com/api/translate',
+                headers={
+                    'Referer': 'https://fanyi.qq.com/'
+                },
+                data={
+                    'source': 'zh',
+                    'target': 'jp',
+                    'sourceText': text,
+                    'qtv': self._qtv,
+                    'qtk': self._qtk
+                }
+            ) as r:
+                if r.status != 200:
+                    logger.warning('TencentTranslate request failed: status=%d %s', r.status, r.reason)
+                    return None
+                data = await r.json()
+        except (aiohttp.ClientConnectionError, asyncio.TimeoutError):
+            return None
+        if data['errCode'] != 0:
+            logger.warning('TencentTranslate failed: %d %s', data['errCode'], data['errMsg'])
+            return None
+        res = ''.join(record['targetText'] for record in data['translate']['records'])
+        if res == '' and text.strip() != '':
+            # qtv、qtk过期
+            logger.warning('TencentTranslate result is empty %s', data)
+            return None
+        return res
+
+    def _on_fail(self):
+        self._fail_count += 1
+        # 目前没有测试出被ban的情况，为了可靠性，连续失败20次时冷却并重新init
+        if self._fail_count >= 20 and self._cool_down_future is None:
+            self._cool_down_future = asyncio.ensure_future(self._cool_down())
+
+    async def _cool_down(self):
+        logger.warning('TencentTranslate is cooling down')
+        self._qtv = self._qtk = ''
+        try:
+            while True:
+                await asyncio.sleep(3 * 60)
+                logger.info('TencentTranslate reinit')
+                try:
+                    if await self._do_init():
+                        self._fail_count = 0
+                        break
+                except:
+                    logger.exception('TencentTranslate init error:')
+        finally:
+            logger.warning('TencentTranslate finished cooling down')
+            self._cool_down_future = None
+
+
+class YoudaoTranslate(TranslateProvider):
+    def __init__(self):
+        self._has_init = False
+        self._cool_down_future = None
+
+    async def init(self):
+        # 获取cookie
+        try:
+            async with _http_session.get('http://fanyi.youdao.com/') as r:
+                if r.status >= 400:
+                    logger.warning('YoudaoTranslate init request failed: status=%d %s', r.status, r.reason)
+                    return False
+        except (aiohttp.ClientConnectionError, asyncio.TimeoutError):
+            return False
+
+        cookies = _http_session.cookie_jar.filter_cookies(yarl.URL('http://fanyi.youdao.com/'))
+        res = 'JSESSIONID' in cookies and 'OUTFOX_SEARCH_USER_ID' in cookies
+        if res:
+            self._has_init = True
+        return res
+
+    @property
+    def is_available(self):
+        return self._has_init
+
+    def translate(self, text, future):
+        asyncio.ensure_future(self._translate_coroutine(text, future))
+
+    async def _translate_coroutine(self, text, future):
+        try:
+            res = await self._do_translate(text)
+        except BaseException as e:
+            future.set_exception(e)
+        else:
+            future.set_result(res)
+
+    async def _do_translate(self, text):
+        try:
+            async with _http_session.post(
+                'http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule',
+                headers={
+                    'Referer': 'http://fanyi.youdao.com/'
+                },
+                data={
+                    'i': text,
+                    'from': 'zh-CHS',
+                    'to': 'ja',
+                    'smartresult': 'dict',
+                    'client': 'fanyideskweb',
+                    **self._generate_salt(text),
+                    'doctype': 'json',
+                    'version': '2.1',
+                    'keyfrom': 'fanyi.web',
+                    'action': 'FY_BY_REALTlME'
+                }
+            ) as r:
+                if r.status != 200:
+                    logger.warning('YoudaoTranslate request failed: status=%d %s', r.status, r.reason)
+                    return None
+                data = await r.json()
+        except (aiohttp.ClientConnectionError, asyncio.TimeoutError):
+            return None
+        except aiohttp.ContentTypeError:
+            # 被ban了
+            if self._cool_down_future is None:
+                self._cool_down_future = asyncio.ensure_future(self._cool_down())
+            return None
+        if data['errorCode'] != 0:
+            logger.warning('YoudaoTranslate failed: %d', data['errorCode'])
+            return None
+
+        res = []
+        for outer_result in data['translateResult']:
+            for inner_result in outer_result:
+                res.append(inner_result['tgt'])
+        return ''.join(res)
+
+    @staticmethod
+    def _generate_salt(text):
+        timestamp = int(time.time() * 1000)
+        salt = f'{timestamp}{random.randint(0, 9)}'
+        md5 = hashlib.md5()
+        md5.update(f'fanyideskweb{text}{salt}n%A-rKaT5fb[Gy?;N5@Tj'.encode())
+        sign = md5.hexdigest()
+        return {
+            'ts': timestamp,
+            'bv': '7bcd9ea3ff9b319782c2a557acee9179',  # md5(navigator.appVersion)
+            'salt': salt,
+            'sign': sign
+        }
+
+    async def _cool_down(self):
+        logger.warning('YoudaoTranslate is cooling down')
+        self._has_init = False
+        try:
+            while True:
+                await asyncio.sleep(3 * 60)
+                try:
+                    is_success = await self.init()
+                except:
+                    logger.exception('YoudaoTranslate init error:')
+                    continue
+                if is_success:
+                    break
+        finally:
+            logger.warning('YoudaoTranslate finished cooling down')
+            self._cool_down_future = None
+
+
+# 目前B站后端是百度翻译
+class BilibiliTranslate(TranslateProvider):
+    def __init__(self):
+        # 最长等待时间大约21秒，(text, future)
+        self._text_queue = asyncio.Queue(7)
+
+    async def init(self):
+        asyncio.ensure_future(self._translate_consumer())
+        return True
+
+    @property
+    def is_available(self):
+        return not self._text_queue.full()
+
+    def translate(self, text, future):
+        try:
+            self._text_queue.put_nowait((text, future))
+        except asyncio.QueueFull:
+            future.set_result(None)
+
+    async def _translate_consumer(self):
+        while True:
+            try:
+                text, future = await self._text_queue.get()
+                asyncio.ensure_future(self._translate_coroutine(text, future))
+                # 频率限制一分钟20次
+                await asyncio.sleep(3.1)
+            except:
+                logger.exception('BilibiliTranslate error:')
+
+    async def _translate_coroutine(self, text, future):
+        try:
+            res = await self._do_translate(text)
+        except BaseException as e:
+            future.set_exception(e)
+        else:
+            future.set_result(res)
+
+    @staticmethod
+    async def _do_translate(text):
+        try:
+            async with _http_session.get(
+                'https://api.live.bilibili.com/av/v1/SuperChat/messageTranslate',
+                params={
+                    'parent_area_id': '1',
+                    'area_id': '199',
+                    'msg': text
+                }
+            ) as r:
+                if r.status != 200:
+                    logger.warning('BilibiliTranslate request failed: status=%d %s', r.status, r.reason)
+                    return None
+                data = await r.json()
+        except (aiohttp.ClientConnectionError, asyncio.TimeoutError):
+            return None
+        if data['code'] != 0:
+            logger.warning('BilibiliTranslate failed: %d %s', data['code'], data['msg'])
+            return None
+        return data['data']['message_trans']

requirements.txt

@@ -1,2 +1,3 @@
 aiohttp==3.5.4
+sqlalchemy==1.3.13
 tornado==6.0.2

update.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+
+import asyncio
+
+import aiohttp
+
+VERSION = 'v1.5.0'
+
+
+def check_update():
+    asyncio.ensure_future(_do_check_update())
+
+
+async def _do_check_update():
+    try:
+        async with aiohttp.ClientSession() as session:
+            async with session.get('https://api.github.com/repos/xfgryujk/blivechat/releases/latest') as r:
+                data = await r.json()
+                if data['name'] != VERSION:
+                    print('---------------------------------------------')
+                    print('New version available:', data['name'])
+                    print(data['body'])
+                    print('Download:', data['html_url'])
+                    print('---------------------------------------------')
+    except aiohttp.ClientConnectionError:
+        print('Failed to check update: connection failed')