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web_app.py
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web_app.py
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# -*- coding: utf-8 -*-
from __future__ import annotations
import asyncio
import json
import logging
from os import environ
from traceback import print_exc
from typing import TYPE_CHECKING, Optional
import aiohttp
import disnake
import tornado.ioloop
import tornado.web
import tornado.websocket
from packaging import version
from config_loader import load_config
if TYPE_CHECKING:
from utils.client import BotPool
logging.getLogger('tornado.access').disabled = True
users_ws = {}
bots_ws = []
minimal_version = version.parse("2.6.1")
class IndexHandler(tornado.web.RequestHandler):
def initialize(self, pool: Optional[BotPool] = None, message: str = "", config: dict = None):
self.message = message
self.pool = pool
self.config = config
async def prepare(self):
bots = [asyncio.create_task(bot.wait_until_ready()) for bot in self.pool.bots if not bot.is_ready()]
if bots:
self.write("")
await self.flush()
await asyncio.wait(bots, timeout=7)
async def get(self):
try:
killing_state = self.pool.killing_state
except:
killing_state = False
if killing_state is True:
self.write('<h1 style=\"font-size:5vw\">A aplicação será reiniciada em breve...</h1>')
return
msg = ""
if self.message:
msg += self.message.replace("\n", "</br>")
style = """<style>
table, th, td {
border:1px solid black;
text-align: center;
}
a {
color: blue;
visited: blue;
}
</style>"""
failed_bots = []
pending_bots = []
ready_bots = []
kwargs = {}
for identifier, exception in self.pool.failed_bots.items():
failed_bots.append(f"<tr><td>{identifier}</td><td>{exception}</td></tr>")
for bot in sorted(self.pool.bots, key=lambda b: b.identifier):
if bot.is_ready():
avatar = bot.user.display_avatar.replace(size=256, static_format="png").url
guilds = len(bot.guilds)
ready_bots.append(
f"<tr><td><img src=\"{avatar}\" width=128 weight=128></img></td>\n"
"<td style=\"padding-top: 10px ; padding-bottom: 10px; padding-left: 10px; padding-right: 10px\">"
f"Adicionar:<br><a href=\"{disnake.utils.oauth_url(bot.user.id, permissions=disnake.Permissions(bot.config['INVITE_PERMISSIONS']), scopes=('bot', 'applications.commands'), **kwargs)}\" "
f"rel=\"nofollow\" target=\"_blank\">{bot.user}</a>" + (f"<br>Servers: {guilds}" if guilds else "") + "</td></tr>"
)
else:
pending_bots.append(f"<tr><td>{bot.identifier}</td></tr>")
if ready_bots:
msg += f"\n<p style=\"font-size:20px\">Bots Disponíveis:</p>" \
f"{style}\n<table cellpadding=\"3\">{''.join(ready_bots)}</table>"
if pending_bots:
msg += f"\n<p style=\"font-size:20px\">Bots em inicialização:</p>" \
f"{style}\n<table cellpadding=\"10\">{''.join(pending_bots)}</table>\n" \
f"Nota: Recarregue a página para conferir se o bot está disponível."
if failed_bots:
failed_table_style = """<style>
table, th, td {
border:1px solid black;
text-align: left;
}
</style>"""
msg += f"\n<p style=\"font-size:20px\">Os seguintes tokens configurado na ENV/SECRET/.env falharam " \
f"na inicialização:</p>" \
f"{failed_table_style}\n<table cellpadding=\"10\">{''.join(failed_bots)}</table>"
ws_url = "<Body onLoad=\" rpcUrl()\" ><p id=\"url\" style=\"color:blue\"></p><script>function rpcUrl(){document." \
"getElementById(\"url\").innerHTML = window.location.href.replace(\".replit.dev\", \".replit.dev:443\").replace(\"http\", \"ws\")" \
".replace(\"https\", \"wss\") + \"ws\"}</script></body>"
msg += f"<p><a href=\"https://github.com/zRitsu/DC-MusicBot-RPC" \
f"/releases\" target=\"_blank\">Baixe o app de rich presence aqui.</a></p>Link para adicionar no app " \
f"de RPC: {ws_url}"
if self.config["ENABLE_RPC_AUTH"]:
msg += f"\nNão esqueça de obter o token para configurar no app, use o comando /rich_presence para obter um.\n<br><br>"
msg += f"\nPrefixo padrão: {self.pool.config['DEFAULT_PREFIX']}<br><br>"
if self.pool.commit:
msg += f"\nCommit Atual: <a href=\"{self.pool.remote_git_url}/commit/{self.pool.commit}\" target=\"_blank\">{self.pool.commit[:7]}</a>"
self.write(msg)
class WebSocketHandler(tornado.websocket.WebSocketHandler):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.user_ids: list = []
self.bot_ids: list = []
self.token = ""
self.blocked = False
self.auth_enabled = False
def on_message(self, message):
data = json.loads(message)
ws_id = data.get("user_ids")
bot_id = data.get("bot_id")
token = data.pop("token", "") or ""
app_version = version.parse(data.get("version", "0"))
self.auth_enabled = data.pop("auth_enabled", False)
if not ws_id:
if not bot_id:
print(f"desconectando: por falta de id de usuario {self.request.remote_ip}\nDados: {data}")
self.write_message(json.dumps({"op": "disconnect", "reason": "Desconectando por falta de ids de usuario"}))
self.close(code=4200)
return
try:
if self.auth_enabled:
if users_ws[data["user"]].token != token:
if users_ws[data["user"]].blocked:
return
data.update(
{
"op": "exception",
"message": "token inválido! Por via das dúvidas gere um novo token usando o comando no "
"bot: /rich_presence."
}
)
for d in ("token", "track", "info"):
data.pop(d, None)
users_ws[data["user"]].blocked = True
else:
users_ws[data["user"]].blocked = False
users_ws[data["user"]].write_message(json.dumps(data))
except KeyError:
pass
except Exception as e:
print(f"Erro ao processar dados do rpc para o user [{data['user']}]: {repr(e)}")
return
is_bot = data.pop("bot", False)
if is_bot:
print(f"🤖 - Nova conexão - Bot: {ws_id} {self.request.remote_ip}")
self.bot_ids = ws_id
bots_ws.append(self)
return
if app_version < minimal_version:
self.write_message(json.dumps({"op": "disconnect", "reason": "Versão do app não suportado! Certifique-se de que está usando "
f"a versão mais recente do app ({minimal_version} ou superior)."}))
self.close(code=4200)
return
if len(ws_id) > 3:
self.write_message(json.dumps({"op": "disconnect", "reason": "Você está tentando conectar mais de 3 usuários consecutivamente..."}))
self.close(code=4200)
return
if len(token) not in (0, 50):
self.write_message(
json.dumps({"op": "disconnect", "reason": f"O token precisa ter 50 caracteres..."}))
self.close(code=4200)
return
self.user_ids = ws_id
print("\n".join(f"👤 - Nova conexão - User: {u}" for u in self.user_ids))
for u_id in ws_id:
try:
users_ws[u_id].write_message(json.dumps({"op": "disconnect",
"reason": "Nova sessão iniciada em outro local..."}))
users_ws[u_id].close(code=4200)
except:
pass
users_ws[u_id] = self
self.token = token
for w in bots_ws:
try:
w.write_message(json.dumps(data))
except Exception as e:
print(f"🤖 - Erro ao processar dados do rpc para os bot's {w.bot_ids}: {repr(e)}")
def check_origin(self, origin: str):
return True
def on_close(self):
if self.user_ids:
print("\n".join(f"👤 - Conexão Finalizada - User: {u}" for u in self.user_ids))
for u_id in self.user_ids:
try:
del users_ws[u_id]
except KeyError:
continue
return
if not self.bot_ids:
print(f"Conexão Finalizada - IP: {self.request.remote_ip}")
else:
print(f"🌐 - Conexão Finalizada - Bot ID's: {self.bot_ids}")
data = {"op": "close", "bot_id": self.bot_ids}
for w in users_ws.values():
if w.blocked:
continue
try:
w.write_message(data)
except Exception as e:
print(
f"👤 - Erro ao processar dados do rpc para os usuários: [{', '.join(str(i) for i in w.user_ids)}]: {repr(e)}")
bots_ws.remove(self)
class WSClient:
def __init__(self, url: str, pool: BotPool):
self.url: str = url
self.pool = pool
self.all_bots = None
self.connection = None
self.backoff: int = 7
self.data: dict = {}
self.session: Optional[aiohttp.ClientSession] = None
self.connect_task = []
async def connect(self):
for t in self.connect_task:
try:
t.cancel()
except:
continue
if not self.session:
self.session = aiohttp.ClientSession()
self.connection = await self.session.ws_connect(self.url, heartbeat=30)
self.backoff = 7
print("🌐 - RPC client conectado, sincronizando rpc dos bots...")
if not self.all_bots:
self.all_bots = self.pool.get_all_bots()
self.connect_task = [asyncio.create_task(self.connect_bot_rpc())]
@property
def is_connected(self):
return self.connection and not self.connection.closed
async def connect_bot_rpc(self):
bot_ids = set()
for bot in self.all_bots:
await bot.wait_until_ready()
bot_ids.add(bot.user.id)
if not bot_ids:
print("🌐 - Conexão com servidor RPC ignorado: Lista de bots vazia...")
return
await self.send({"user_ids": list(bot_ids), "bot": True, "auth_enabled": self.pool.config["ENABLE_RPC_AUTH"]})
await asyncio.sleep(1)
for bot in self.all_bots:
for player in bot.music.players.values():
if not player.guild.me.voice:
continue
if player.guild.me.voice.channel.voice_states:
bot.loop.create_task(player.process_rpc(player.last_channel))
print(f"🌐 - [RPC client] - Os dados de rpc foram sincronizados com sucesso.")
async def send(self, data: dict):
if not self.is_connected:
return
try:
await self.connection.send_json(data)
except:
print_exc()
def clear_tasks(self):
for t in self.connect_task:
try:
t.cancel()
except:
continue
self.connect_task.clear()
async def ws_loop(self):
while True:
try:
if not self.is_connected:
self.clear_tasks()
await self.connect()
except Exception as e:
if isinstance(e, aiohttp.WSServerHandshakeError):
print(f"🌐 - Falha ao conectar no servidor RPC, tentando novamente em {(b:=int(self.backoff))} segundo{'s'[:b^1]}.")
else:
print(f"🌐 - Conexão com servidor RPC perdida - Reconectando em {(b:=int(self.backoff))} segundo{'s'[:b^1]}.")
await asyncio.sleep(self.backoff)
self.backoff *= 2.5
continue
message = await self.connection.receive()
if message.type in (aiohttp.WSMsgType.CLOSED, aiohttp.WSMsgType.ERROR):
print(f"🌐 - RPC Websocket Closed: {message.extra}\nReconnecting in {self.backoff}s")
await asyncio.sleep(self.backoff)
continue
elif message.type in (aiohttp.WSMsgType.CLOSING, aiohttp.WSMsgType.CLOSE):
print(f"🌐 - RPC Websocket Finalizado: {message.extra}")
return
data = json.loads(message.data)
users: list = data.get("user_ids")
if not users:
continue
op = data.get("op")
if op == "rpc_update":
for bot in self.all_bots:
for player in bot.music.players.values():
if not player.guild.me.voice:
continue
vc = player.guild.me.voice.channel
vc_user_ids = [i for i in vc.voice_states if i in users]
if vc_user_ids:
bot.loop.create_task(player.process_rpc(vc))
for i in vc_user_ids:
users.remove(i)
def run_app(pool: BotPool, message: str = "", config: dict = None):
if not config:
try:
config = pool.config
except IndexError:
pass
app = tornado.web.Application([
(r'/', IndexHandler, {'pool': pool, 'message': message, 'config': config}),
(r'/ws', WebSocketHandler),
])
app.listen(port=config.get("PORT") or environ.get("PORT", 80))
def start(pool: BotPool, message="", config: dict = None):
if not config:
config = load_config()
run_app(pool, message, config)
tornado.ioloop.IOLoop.instance().start()
if __name__ == '__main__':
start(BotPool())