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royalnet/discordbot.py
2018-05-29 21:55:05 +02:00

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import random
import re
import discord
import discord.opus
import discord.voice_client
import functools
import sys
import db
import youtube_dl
import concurrent.futures
import stagismo
import platform
import typing
import os
import asyncio
import configparser
import subprocess
import async_timeout
import raven
import cast
import pickle
# Queue emojis
queue_emojis = [":one:",
":two:",
":three:",
":four:",
":five:",
":six:",
":seven:",
":eight:",
":nine:",
":keycap_ten:"]
# Init the event loop
loop = asyncio.get_event_loop()
# Init the config reader
config = configparser.ConfigParser()
config.read("config.ini")
class DurationError(Exception):
pass
class InfoNotRetrievedError(Exception):
pass
class FileNotDownloadedError(Exception):
pass
class AlreadyDownloadedError(Exception):
pass
class OldVideo:
def __init__(self):
self.enqueuer = None # type: typing.Optional[discord.User]
self.filename = None # type: typing.Optional[str]
self.ytdl_url = None # type: typing.Optional[str]
self.data = None # type: typing.Optional[dict]
@staticmethod
async def init(user_id: str, *, filename=None, ytdl_url=None, data=None):
if filename is None and ytdl_url is None:
raise Exception("Filename or url must be specified")
self = OldVideo()
self.enqueuer = int(user_id)
self.filename = filename
self.ytdl_url = ytdl_url
self.data = data if data is not None else {}
return self
async def download(self):
# Retrieve info before downloading
with youtube_dl.YoutubeDL() as ytdl:
info = await loop.run_in_executor(executor, functools.partial(ytdl.extract_info, self.ytdl_url,
download=False))
if "entries" in info:
info = info["entries"][0]
file_id = info.get("title", str(hash(self.ytdl_url)))
file_id = re.sub(r'[/\\?*"<>|]', "_", file_id)
# Set the filename to the downloaded video
self.filename = file_id
if os.path.exists(f"opusfiles/{file_id}.opus"):
return
if info.get("duration", 1) > int(config["YouTube"]["max_duration"]):
raise DurationError(f"File duration is over the limit "
f"set in the config ({config['YouTube']['max_duration']}).")
ytdl_args = {"noplaylist": True,
"format": "best",
"postprocessors": [{
"key": 'FFmpegExtractAudio',
"preferredcodec": 'opus'
}],
"outtmpl": f"opusfiles/{file_id}.opus",
"quiet": True}
if "youtu" in self.ytdl_url:
ytdl_args["username"] = config["YouTube"]["username"]
ytdl_args["password"] = config["YouTube"]["password"]
# Download the video
with youtube_dl.YoutubeDL(ytdl_args) as ytdl:
await loop.run_in_executor(executor, functools.partial(ytdl.download, [self.ytdl_url]))
async def add_to_db(self):
session = await loop.run_in_executor(executor, db.Session)
pm = db.PlayedMusic(enqueuer_id=self.enqueuer,
filename=self.filename)
session.add(pm)
await loop.run_in_executor(executor, session.commit)
await loop.run_in_executor(executor, session.close)
def __str__(self):
if self.data.get("title") is not None:
return f"{self.data.get('title')}"
elif self.filename is not None:
return f"`{self.filename}`"
else:
return f"<{self.ytdl_url}>"
class Video:
def __init__(self, url: str=None, file: str=None, info: dict=None):
self.url = url
if file is None and info is None:
self.file = str(hash(url)) + ".opus"
elif info is not None:
self.file = re.sub(r'[/\\?*"<>|!]', "_", info["title"]) + ".opus"
else:
self.file = file
self.downloaded = False if file is None else True
self.info = info
def __str__(self):
if self.info is None or "title" not in self.info:
return f"`{self.file}`"
return f"_{self.info['title']}_"
async def download(self, progress_hooks: typing.List["function"]=None):
# File already downloaded
if self.downloaded:
raise AlreadyDownloadedError()
# No progress hooks
if progress_hooks is None:
progress_hooks = []
# Check if under max duration
if self.info is not None and self.info.get("duration", 0) > int(config["YouTube"]["max_duration"]):
raise DurationError()
# Download the file
with youtube_dl.YoutubeDL({"noplaylist": True,
"format": "best",
"postprocessors": [{
"key": 'FFmpegExtractAudio',
"preferredcodec": 'opus'
}],
"outtmpl": f"./opusfiles/{self.file}",
"progress_hooks": progress_hooks,
"quiet": True}) as ytdl:
await loop.run_in_executor(executor, functools.partial(ytdl.download, [self.url]))
self.downloaded = True
async def create_player(self) -> discord.voice_client.ProcessPlayer:
# Check if the file has been downloaded
if not self.downloaded:
raise FileNotDownloadedError()
global voice_client
return voice_client.create_ffmpeg_player(f"./opusfiles/{self.file}")
# noinspection PyUnreachableCode
if __debug__:
version = "Dev"
commit_msg = "_in sviluppo_"
else:
# Find the latest git tag
old_wd = os.getcwd()
try:
os.chdir(os.path.dirname(__file__))
version = str(subprocess.check_output(["git", "describe", "--tags"]), encoding="utf8").strip()
commit_msg = str(subprocess.check_output(["git", "log", "-1", "--pretty=%B"]), encoding="utf8").strip()
except Exception:
version = ""
finally:
os.chdir(old_wd)
# Init the discord bot
client = discord.Client()
if platform.system() == "Linux":
discord.opus.load_opus("/usr/lib/x86_64-linux-gnu/libopus.so")
elif platform.system() == "Windows":
discord.opus.load_opus("libopus-0.dll")
voice_client = None
voice_player = None
voice_queue = []
old_voice_queue = []
# Init the executor
executor = concurrent.futures.ThreadPoolExecutor(max_workers=3)
# Init the Sentry client
sentry = raven.Client(config["Sentry"]["token"],
release=version,
install_logging_hook=False,
hook_libraries=[])
async def on_error(event, *args, **kwargs):
ei = sys.exc_info()
print("ERRORE CRITICO:\n" + repr(ei[1]) + "\n\n" + repr(ei))
try:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"☢️ **ERRORE CRITICO NELL'EVENTO** `{event}`\n"
f"Il bot si è chiuso e si dovrebbe riavviare entro qualche minuto.\n"
f"Una segnalazione di errore è stata automaticamente mandata a Steffo.\n\n"
f"Dettagli dell'errore:\n"
f"```python\n"
f"{repr(ei[1])}\n"
f"```")
if voice_client is not None:
await voice_client.disconnect()
await client.change_presence(status=discord.Status.invisible)
await client.close()
except Exception as e:
print("ERRORE CRITICO PIU' CRITICO:\n" + repr(e) + "\n\n" + repr(sys.exc_info()))
loop.stop()
sentry.captureException(exc_info=ei)
os._exit(1)
pass
@client.event
async def on_ready():
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f" Royal Bot avviato e pronto a ricevere comandi!\n"
f"Ultimo aggiornamento: `{version}: {commit_msg}`")
await client.change_presence(game=None, status=discord.Status.online)
@client.event
async def on_message(message: discord.Message):
global voice_client
global old_voice_queue
global voice_player
if not message.content.startswith("!"):
return
sentry.user_context({
"discord": {
"discord_id": message.author.id,
"name": message.author.name,
"discriminator": message.author.discriminator
}
})
await client.send_typing(message.channel)
session = await loop.run_in_executor(executor, db.Session)
user = session.query(db.Discord).filter_by(discord_id=message.author.id).one_or_none()
if user is None:
user = db.Discord(discord_id=message.author.id,
name=message.author.name,
discriminator=message.author.discriminator,
avatar_hex=message.author.avatar)
session.add(user)
await loop.run_in_executor(executor, session.commit)
else:
sentry.user_context({
"discord": {
"discord_id": message.author.id,
"name": message.author.name,
"discriminator": message.author.discriminator
},
"royal": {
"user_id": user.royal_id
}
})
if message.content.startswith("!ping"):
await cmd_ping(channel=message.channel,
author=message.author,
params=["/ping"])
elif message.content.startswith("!link"):
if user.royal_id is None:
await client.send_message(message.channel,
"⚠️ Il tuo account Discord è già collegato a un account RYG "
"o l'account RYG che hai specificato è già collegato a un account Discord.")
return
try:
username = message.content.split(" ", 1)[1]
except IndexError:
await client.send_message(message.channel, "⚠️ Non hai specificato un username!\n"
"Sintassi corretta: `!link <username_ryg>`")
return
royal = session.query(db.Royal).filter_by(username=username).one_or_none()
if royal is None:
await client.send_message(message.channel,
"⚠️ Non esiste nessun account RYG con questo nome.")
return
user.royal_id = royal.id
session.commit()
session.close()
await client.send_message(message.channel, "✅ Sincronizzazione completata!")
elif message.content.startswith("!cv"):
await cmd_cv(channel=message.channel,
author=message.author,
params=message.content.split(" "))
elif message.content.startswith("!play"):
await cmd_play(channel=message.channel,
author=message.author,
params=message.content.split(" "))
elif message.content.startswith("!skip"):
await cmd_skip(channel=message.channel,
author=message.author,
params=message.content.split(" "))
elif message.content.startswith("!remove"):
await cmd_remove(channel=message.channel,
author=message.author,
params=message.content.split(" "))
elif message.content.startswith("!queue"):
await cmd_queue(channel=message.channel,
author=message.author,
params=message.content.split(" "))
elif message.content.startswith("!cast"):
try:
spell = message.content.split(" ", 1)[1]
except IndexError:
await client.send_message(message.channel, "⚠️ Non hai specificato nessun incantesimo!\n"
"Sintassi corretta: `!cast <nome_incantesimo>`")
return
target: discord.Member = random.sample(list(message.server.members), 1)[0]
await client.send_message(message.channel, cast.cast(spell_name=spell, target_name=target.name,
platform="discord"))
elif message.content.startswith("!smecds"):
ds = random.sample(stagismo.listona, 1)[0]
await client.send_message(message.channel, f"Secondo me, è colpa {ds}.", tts=True)
elif __debug__ and message.content.startswith("!exception"):
raise Exception("!exception was called")
async def update_users_pipe(users_connection):
await client.wait_until_ready()
while True:
msg = await loop.run_in_executor(executor, users_connection.recv)
if msg == "/cv":
discord_members = list(client.get_server(config["Discord"]["server_id"]).members)
users_connection.send(discord_members)
if msg == "/uranium":
await add_video_from_url("https://www.youtube.com/watch?v=iutuQbMAx04")
def command(func):
"""Decorator. Runs the function as a Discord command."""
async def new_func(channel: discord.Channel, author: discord.Member, params: typing.List[str], *args, **kwargs):
sentry.user_context({
"discord_id": author.id,
"username": f"{author.name}#{author.discriminator}"
})
try:
result = await func(channel=channel, author=author, params=params, *args, **kwargs)
except Exception:
ei = sys.exc_info()
try:
await client.send_message(channel,
f"☢ **ERRORE DURANTE L'ESECUZIONE DEL COMANDO {params[0]}**\n"
f"Il comando è stato ignorato.\n"
f"Una segnalazione di errore è stata automaticamente mandata a Steffo.\n\n"
f"Dettagli dell'errore:\n"
f"```python\n"
f"{repr(ei[1])}\n"
f"```")
except Exception as e:
pass
sentry.captureException(exc_info=ei)
else:
return result
return new_func
def requires_cv(func):
"Decorator. Ensures the voice client is connected before running the command."
async def new_func(channel: discord.Channel, author: discord.Member, params: typing.List[str], *args, **kwargs):
global voice_client
if voice_client is None or not voice_client.is_connected():
await client.send_message(channel,
"⚠️ Non sono connesso alla cv!\n"
"Fammi entrare scrivendo `!cv` mentre sei in chat vocale.")
return
return await func(channel=channel, author=author, params=params, *args, **kwargs)
return new_func
def requires_rygdb(func, optional=False):
async def new_func(channel: discord.Channel, author: discord.Member, params: typing.List[str], *args, **kwargs):
session = await loop.run_in_executor(executor, db.Session)
dbuser = await loop.run_in_executor(executor,
session.query(db.Discord)
.filter_by(discord_id=author.id)
.join(db.Royal)
.first)
if not optional and dbuser is None:
await client.send_message(channel,
"⚠️ Devi essere registrato su Royalnet per poter utilizzare questo comando.")
return
await loop.run_in_executor(executor, session.close)
return await func(channel=channel, author=author, params=params, dbuser=dbuser, *args, **kwargs)
return new_func
@command
async def cmd_ping(channel: discord.Channel, author: discord.Member, params: typing.List[str]):
await client.send_message(channel, f"Pong!")
@command
async def cmd_cv(channel: discord.Channel, author: discord.Member, params: typing.List[str]):
await client.send_typing(channel)
if author.voice.voice_channel is None:
await client.send_message(channel, "⚠ Non sei in nessun canale!")
return
global voice_client
if voice_client is not None and voice_client.is_connected():
await voice_client.move_to(author.voice.voice_channel)
else:
voice_client = await client.join_voice_channel(author.voice.voice_channel)
await client.send_message(channel, f"✅ Mi sono connesso in <#{author.voice.voice_channel.id}>.")
async def add_video_from_url(url):
# Retrieve info
with youtube_dl.YoutubeDL({"quiet": True,
"ignoreerrors": True,
"simulate": True}) as ytdl:
info = await loop.run_in_executor(executor,
functools.partial(ytdl.extract_info, url=url, download=False))
if "entries" in info:
# This is a playlist
for entry in info["entries"]:
voice_queue.append(Video(url=entry["webpage_url"], info=entry))
return
# This is a single video
voice_queue.append(Video(url=url, info=info))
async def add_video_from_file(file):
voice_queue.append(Video(file=file))
@command
@requires_cv
async def cmd_play(channel: discord.Channel, author: discord.Member, params: typing.List[str]):
if len(params) < 2:
await client.send_message(channel, "⚠ Non hai specificato una canzone da riprodurre!\n"
"Sintassi: `!play <url|ricercayoutube|nomefile>`")
return
# Parse the parameter as URL
url = re.match(r"(?:https?://|ytsearch[0-9]*:).*", " ".join(params[1:]).strip("<>"))
if url is not None:
# This is a url
await add_video_from_url(url.group(0))
await client.send_message(channel, f"✅ Video aggiunto alla coda.")
return
# Parse the parameter as file
file_path = os.path.join(os.path.join(os.path.curdir, "opusfiles"), " ".join(params[1:]))
if os.path.exists(file_path):
# This is a file
await add_video_from_file(file=file_path)
await client.send_message(channel, f"✅ Video aggiunto alla coda.")
return
file_path += ".opus"
if os.path.exists(file_path):
# This is a file
await add_video_from_file(file=file_path)
await client.send_message(channel, f"✅ Video aggiunto alla coda.")
return
# Search the parameter on youtube
search = params[1]
# This is a search
await add_video_from_url(url=f"ytsearch:{search}")
await client.send_message(channel, f"✅ Video aggiunto alla coda.")
@command
@requires_cv
async def cmd_skip(channel: discord.Channel, author: discord.Member, params: typing.List[str]):
global voice_player
if voice_player is None:
await client.send_message(channel, "⚠ Non c'è nessun video in riproduzione.")
return
voice_player.stop()
await client.send_message(channel, f"⏩ Video saltato.")
@command
@requires_cv
async def cmd_remove(channel: discord.Channel, author: discord.Member, params: typing.List[str]):
if len(voice_queue) == 0:
await client.send_message(channel, "⚠ Non c'è nessun video in coda.")
return
if len(params) < 2:
index = len(voice_queue) - 1
else:
try:
index = int(params[1]) - 1
except ValueError:
await client.send_message(channel, "⚠ Il numero inserito non è valido.\n"
"Sintassi: `!remove [numerovideo]`")
return
if abs(index) >= len(voice_queue):
await client.send_message(channel, "⚠ Il numero inserito non corrisponde a nessun video nella playlist.\n"
"Sintassi: `!remove [numerovideo]`")
return
video = voice_queue.pop(index)
await client.send_message(channel, f":regional_indicator_x: {str(video)} è stato rimosso dalla coda.")
@command
async def cmd_queue(channel: discord.Channel, author: discord.Member, params: typing.List[str]):
if len(voice_queue) == 0:
await client.send_message(channel, "**Video in coda:**\n"
"nessuno")
return
msg = "**Video in coda:**\n"
for index, video in enumerate(voice_queue[:10]):
msg += f"{queue_emojis[index]} {str(video)}\n"
if len(voice_queue) > 10:
msg += f"più altri {len(voice_queue) - 10} video!"
await client.send_message(channel, msg)
async def queue_predownload_videos():
while True:
for index, video in enumerate(voice_queue[:int(config["YouTube"]["predownload_videos"])].copy()):
if video.downloaded:
continue
try:
with async_timeout.timeout(int(config["YouTube"]["download_timeout"])):
await video.download()
except asyncio.TimeoutError:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"⚠️ Il download di {str(video)} ha richiesto più di"
f" {config['YouTube']['download_timeout']} secondi, pertanto è stato rimosso"
f" dalla coda.")
del voice_queue[index]
continue
except DurationError:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"⚠️ {str(video)} dura più di {config['YouTube']['download_timeout']}"
f" secondi, quindi è stato rimosso dalla coda.")
del voice_queue[index]
continue
except Exception as e:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"⚠️ E' stato incontrato un errore durante il download di {str(video)},"
f" quindi è stato rimosso dalla coda.\n\n"
f"```python\n"
f"{str(e)}"
f"```")
del voice_queue[index]
continue
await asyncio.sleep(1)
async def queue_play_next_video():
await client.wait_until_ready()
global voice_client
global voice_player
while True:
if voice_client is None:
await asyncio.sleep(1)
continue
if voice_player is not None and not voice_player.is_done():
await asyncio.sleep(0.5)
continue
if len(voice_queue) == 0:
await asyncio.sleep(0.5)
continue
next_video = voice_queue[0]
if not next_video.downloaded:
await asyncio.sleep(0.5)
continue
voice_player = await next_video.create_player()
voice_player.start()
del voice_queue[0]
async def update_old_music_queue():
await client.wait_until_ready()
global voice_client
global voice_player
global old_voice_queue
while True:
try:
if voice_client is None:
await asyncio.sleep(5)
continue
if voice_player is not None and not voice_player.is_done():
await asyncio.sleep(1)
continue
if len(old_voice_queue) == 0:
await client.change_presence()
await asyncio.sleep(1)
continue
video = old_voice_queue.pop(0)
if video.ytdl_url:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"⬇️ E' iniziato il download di {str(video)}.")
try:
async with async_timeout.timeout(30):
await video.download()
except asyncio.TimeoutError:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"⚠️ Il download della canzone ha richiesto più di 30 secondi ed è stato "
f"annullato. ")
continue
except DurationError:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"⚠️ Il file supera il limite di durata impostato in config.ini "
f"(`{config['YouTube']['max_duration']}` secondi).")
continue
except Exception as e:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"⚠️ C'è stato un errore durante il download di `{video.ytdl_url}`:\n"
f"```\n"
f"{e}\n"
f"```")
continue
voice_player = voice_client.create_ffmpeg_player(f"opusfiles/{video.filename}.opus")
voice_player.start()
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"▶ Ora in riproduzione in <#{voice_client.channel.id}>:\n"
f"`{video.filename}`")
await client.change_presence(game=discord.Game(name=video.filename, type=2))
await video.add_to_db()
except Exception:
ei = sys.exc_info()
try:
await client.send_message(client.get_channel(config["Discord"]["main_channel"]),
f"☢️ **ERRORE CRITICO NELL'AGGIORNAMENTO DELLA CODA DI VIDEO**\n"
f"Il bot si è disconnesso dalla chat vocale, e ha svuotato la coda.\n"
f"Una segnalazione di errore è stata automaticamente mandata a Steffo.\n\n"
f"Dettagli dell'errore:\n"
f"```python\n"
f"{repr(ei[1])}\n"
f"```")
if voice_player is not None:
await voice_player.stop()
voice_player = None
await voice_client.disconnect()
voice_client = None
old_voice_queue = []
except Exception as e:
print("ERRORE CRITICO PIU' CRITICO:\n" + repr(e) + "\n\n" + repr(sys.exc_info()))
sentry.captureException(exc_info=ei)
def process(users_connection=None):
print("Discordbot starting...")
if users_connection is not None:
asyncio.ensure_future(update_users_pipe(users_connection))
asyncio.ensure_future(queue_predownload_videos())
asyncio.ensure_future(queue_play_next_video())
client.on_error = on_error
client.run(config["Discord"]["bot_token"])
if __name__ == "__main__":
process()