704 lines
30 KiB
Python
704 lines
30 KiB
Python
from .voice_utilities import *
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import discord
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from discord.ext import commands
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from . import utils
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import math
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import time
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import asyncio
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import re
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import os
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import glob
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import socket
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import inspect
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if not discord.opus.is_loaded():
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discord.opus.load_opus('/usr/lib64/libopus.so.0')
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class VoiceState:
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def __init__(self, bot, download):
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self.current = None
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self.voice = None
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self.bot = bot
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self.play_next_song = asyncio.Event()
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# This is the queue that holds all VoiceEntry's
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self.songs = Playlist(bot)
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self.required_skips = 0
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# a set of user_ids that voted
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self.skip_votes = set()
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# Our actual task that handles the queue system
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self.audio_player = self.bot.loop.create_task(self.audio_player_task())
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self.opts = {
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'default_search': 'auto',
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'quiet': True
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}
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self.volume = 50
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self.downloader = download
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self.file_names = []
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def is_playing(self):
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# If our VoiceClient or current VoiceEntry do not exist, then we are not playing a song
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if self.voice is None or self.current is None:
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return False
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# If they do exist, check if the current player has finished
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player = self.current.player
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try:
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return not player.is_done()
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except AttributeError:
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return False
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@property
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def player(self):
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return self.current.player
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def skip(self):
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# Make sure we clear the votes, before stopping the player
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# When the player is stopped, our toggle_next method is called, so the next song can be played
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self.skip_votes.clear()
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if self.is_playing():
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self.player.stop()
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def toggle_next(self):
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# Set the Event so that the next song in the queue can be played
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self.bot.loop.call_soon_threadsafe(self.play_next_song.set)
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async def audio_player_task(self):
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while True:
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# At the start of our task, clear the Event, so we can wait till it is next set
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self.play_next_song.clear()
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# Clear the votes skip that were for the last song
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self.skip_votes.clear()
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# Now wait for the next song in the queue
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self.current = await self.songs.get_next_entry()
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# Make sure we find a song
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while self.current is None:
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self.clear_audio_files()
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await asyncio.sleep(1)
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self.current = await self.songs.get_next_entry()
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# At this point we're sure we have a song, however it needs to be downloaded
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while not getattr(self.current, 'filename'):
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print("Downloading...")
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await asyncio.sleep(1)
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# Now add this file to our list of filenames, so that it can be deleted later
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if self.current.filename not in self.file_names:
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self.file_names.append(self.current.filename)
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# Create the player object
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self.current.player = self.voice.create_ffmpeg_player(
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self.current.filename,
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before_options="-nostdin",
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options="-vn -b:a 128k",
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after=self.toggle_next
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)
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# Now we can start actually playing the song
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self.current.player.start()
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self.current.player.volume = self.volume / 100
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# Save the variable for when our time for this song has started
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self.current.start_time = time.time()
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# Wait till the Event has been set, before doing our task again
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await self.play_next_song.wait()
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def clear_audio_files(self):
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"""Deletes all the audio files this guild has created"""
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for f in self.file_names:
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os.remove(f)
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self.file_names = []
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class Music:
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"""Voice related commands.
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Works in multiple servers at once.
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"""
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def __init__(self, bot):
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self.bot = bot
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self.voice_states = {}
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down = Downloader(download_folder='audio_tmp')
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self.downloader = down
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self.bot.downloader = down
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self.clear_audio_tmp()
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def clear_audio_tmp(self):
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files = glob.glob('audio_tmp/*')
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for f in files:
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os.remove(f)
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def get_voice_state(self, server):
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state = self.voice_states.get(server.id)
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# Internally handle creating a voice state if there isn't a current state
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# This can be used for example, in case something is skipped when not being connected
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# We create the voice state when checked
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# This only creates the state, we are still not playing anything, which can then be handled separately
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if state is None:
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state = VoiceState(self.bot, self.downloader)
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self.voice_states[server.id] = state
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return state
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async def create_voice_client(self, channel):
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"""Creates a voice client and saves it"""
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# First join the channel and get the VoiceClient that we'll use to save per server
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await self.remove_voice_client(channel.server)
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server = channel.server
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state = self.get_voice_state(server)
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voice = self.bot.voice_client_in(server)
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# Attempt 3 times
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for i in range(3):
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try:
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if voice is None:
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state.voice = await self.bot.join_voice_channel(channel)
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if state.voice:
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return True
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elif voice.channel == channel:
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state.voice = voice
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return True
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else:
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# This shouldn't theoretically ever happen yet it does. Thanks Discord
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await voice.disconnect()
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state.voice = await self.bot.join_voice_channel(channel)
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if state.voice:
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return True
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except (discord.ClientException, socket.gaierror, ConnectionResetError):
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continue
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return False
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async def remove_voice_client(self, server):
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"""Removes any voice clients from a server
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This is sometimes needed, due to the unreliability of Discord's voice connection
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We do not want to end up with a voice client stuck somewhere, so this cancels any found for a server"""
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state = self.get_voice_state(server)
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voice = self.bot.voice_client_in(server)
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if voice:
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await voice.disconnect()
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if state.voice:
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await state.voice.disconnect()
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def __unload(self):
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# If this is unloaded, cancel all players and disconnect from all channels
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for state in self.voice_states.values():
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try:
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state.audio_player.cancel()
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if state.voice:
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self.bot.loop.create_task(state.voice.disconnect())
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except:
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pass
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async def on_voice_state_update(self, before, after):
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state = self.get_voice_state(after.server)
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if state.voice is None:
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return
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voice_channel = state.voice.channel
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num_members = len(voice_channel.voice_members)
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state.required_skips = math.ceil((num_members + 1) / 3)
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async def queue_embed_task(self, state, channel, author):
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index = 0
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message = None
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fmt = None
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# Our check to ensure the only one who reacts is the bot
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def check(reaction, user):
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return user == author
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possible_reactions = ['\u27A1', '\u2B05', '\u2b06', '\u2b07', '\u274c']
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while True:
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# Get the current queue (It might change while we're doing this)
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# So do this in the while loop
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queue = state.songs.entries
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count = len(queue)
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# This means the last song was removed
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if count == 0:
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await self.bot.send_message(channel, "Nothing currently in the queue")
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break
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# Get the current entry
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entry = queue[index]
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# Get the entry's embed
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embed = entry.to_embed()
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# Set the embed's title to indicate the amount of things in the queue
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count = len(queue)
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embed.title = "Current Queue [{}/{}]".format(index+1, count)
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# Now we need to send the embed, so check if the message is already set
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# If not, then we need to send a new one (i.e. this is the first time called)
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if message:
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message = await self.bot.edit_message(message, fmt, embed=embed)
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# There's only one reaction we want to make sure we remove in the circumstances
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# If the member doesn't have kick_members permissions, and isn't the requester
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# Then they can't remove the song, otherwise they can
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if not author.server_permissions.kick_members and author != entry.requester:
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try:
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await self.bot.remove_reaction(message, '\u274c', channel.server.me)
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except:
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pass
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elif not author.server_permissions.kick_members and author == entry.requester:
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try:
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await self.bot.add_reaction(message, '\u274c')
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except:
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pass
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else:
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message = await self.bot.send_message(channel, embed=embed)
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await self.bot.add_reaction(message, '\N{LEFTWARDS BLACK ARROW}')
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await self.bot.add_reaction(message, '\N{BLACK RIGHTWARDS ARROW}')
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# The moderation tools that can be used
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if author.server_permissions.kick_members:
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await self.bot.add_reaction(message, '\N{DOWNWARDS BLACK ARROW}')
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await self.bot.add_reaction(message, '\N{UPWARDS BLACK ARROW}')
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await self.bot.add_reaction(message, '\N{CROSS MARK}')
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elif author == entry.requester:
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await self.bot.add_reaction(message, '\N{CROSS MARK}')
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# Reset the fmt message
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fmt = None
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# Now we wait for the next reaction
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res = await self.bot.wait_for_reaction(possible_reactions, message=message, check=check, timeout=180)
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if res is None:
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break
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else:
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reaction, user = res
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# Now we can prepare for the next embed to be sent
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# If right is clicked
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if '\u27A1' in reaction.emoji:
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index += 1
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if index >= count:
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index = 0
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# If left is clicked
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elif '\u2B05' in reaction.emoji:
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index -= 1
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if index < 0:
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index = count - 1
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# If up is clicked
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elif '\u2b06' in reaction.emoji:
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# A second check just to make sure, as well as ensuring index is higher than 0
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if author.server_permissions.kick_members and index > 0:
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if entry != queue[index]:
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fmt = "`Error: Position of this entry has changed, cannot complete your action`"
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else:
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# Remove the current entry
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del queue[index]
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# Add it one position higher
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queue.insert(index - 1, entry)
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# Lets move the index to look at the new place of the entry
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index -= 1
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# If down is clicked
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elif '\u2b07' in reaction.emoji:
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# A second check just to make sure, as well as ensuring index is lower than last
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if author.server_permissions.kick_members and index < (count - 1):
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if entry != queue[index]:
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fmt = "`Error: Position of this entry has changed, cannot complete your action`"
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else:
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# Remove the current entry
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del queue[index]
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# Add it one position lower
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queue.insert(index + 1, entry)
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# Lets move the index to look at the new place of the entry
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index += 1
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# If x is clicked
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elif '\u274c' in reaction.emoji:
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# A second check just to make sure
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if author.server_permissions.kick_members or author == entry.requester:
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if entry != queue[index]:
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fmt = "`Error: Position of this entry has changed, cannot complete your action`"
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else:
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# Simply remove the entry in place
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del queue[index]
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# This is the only check we need to make, to ensure index is now not more than last
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new_count = count - 1
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if index >= new_count:
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index = new_count - 1
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try:
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await self.bot.remove_reaction(message, reaction.emoji, user)
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except discord.Forbidden:
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pass
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await self.bot.delete_message(message)
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@commands.command(pass_context=True)
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@commands.check(utils.is_owner)
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async def vdebug(self, ctx, *, code : str):
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"""Evaluates code."""
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code = code.strip('` ')
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python = '```py\n{}\n```'
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result = None
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env = {
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'bot': self.bot,
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'ctx': ctx,
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'message': ctx.message,
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'server': ctx.message.server,
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'channel': ctx.message.channel,
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'author': ctx.message.author
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}
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env.update(globals())
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try:
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result = eval(code, env)
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if inspect.isawaitable(result):
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result = await result
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except Exception as e:
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await self.bot.say(python.format(type(e).__name__ + ': ' + str(e)))
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return
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await self.bot.say(python.format(result))
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@commands.command(pass_context=True, no_pm=True)
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@utils.custom_perms(send_messages=True)
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async def progress(self, ctx):
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"""Provides the progress of the current song"""
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# Make sure we're playing first
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state = self.get_voice_state(ctx.message.server)
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if not state.is_playing():
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await self.bot.say('Not playing anything.')
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else:
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progress = state.current.progress
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length = state.current.length
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# Another check, just to make sure; this may happen for a very brief amount of time
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# Between when the song was requested, and still downloading to play
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if not progress or not length:
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await self.bot.say('Not playing anything.')
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return
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# Otherwise just format this nicely
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progress = divmod(round(progress, 0), 60)
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length = divmod(round(length, 0), 60)
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fmt = "Current song progress: {0[0]}m {0[1]}s/{1[0]}m {1[1]}s".format(progress, length)
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await self.bot.say(fmt)
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@commands.command(no_pm=True)
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@utils.custom_perms(send_messages=True)
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async def join(self, *, channel: discord.Channel):
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"""Joins a voice channel."""
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try:
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await self.create_voice_client(channel)
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# Check if the channel given was an actual voice channel
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except discord.InvalidArgument:
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await self.bot.say('This is not a voice channel...')
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except (asyncio.TimeoutError, discord.ConnectionClosed):
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await self.bot.say("I failed to connect! This usually happens if I don't have permission to join the"
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" channel, but can sometimes be caused by your server region being far away."
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" Otherwise this is an issue on Discord's end, causing the connect to timeout!")
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await self.remove_voice_client(channel.server)
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else:
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await self.bot.say('Ready to play audio in ' + channel.name)
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@commands.command(pass_context=True, no_pm=True)
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@utils.custom_perms(send_messages=True)
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async def summon(self, ctx):
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"""Summons the bot to join your voice channel."""
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# This method will be invoked by other commands, so we should return True or False instead of just returning
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# First check if the author is even in a voice_channel
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summoned_channel = ctx.message.author.voice_channel
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if summoned_channel is None:
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await self.bot.say('You are not in a voice channel.')
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return False
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# Then simply create a voice client
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try:
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success = await self.create_voice_client(summoned_channel)
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except (asyncio.TimeoutError, discord.ConnectionClosed):
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await self.bot.say("I failed to connect! This usually happens if I don't have permission to join the"
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" channel, but can sometimes be caused by your server region being far away."
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" Otherwise this is an issue on Discord's end, causing the connect to timeout!")
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await self.remove_voice_client(summoned_channel.server)
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return False
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if success:
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try:
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await self.bot.say('Ready to play audio in ' + summoned_channel.name)
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except discord.Forbidden:
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pass
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return success
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@commands.command(pass_context=True, no_pm=True)
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@utils.custom_perms(send_messages=True)
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async def play(self, ctx, *, song: str):
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"""Plays a song.
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If there is a song currently in the queue, then it is
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queued until the next song is done playing.
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This command automatically searches as well from YouTube.
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The list of supported sites can be found here:
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https://rg3.github.io/youtube-dl/supportedsites.html
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"""
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state = self.get_voice_state(ctx.message.server)
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# First check if we are connected to a voice channel at all, if not summon to the channel the author is in
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# Since summon utils if the author is in a channel, we don't need to handle that here, just return if it failed
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if state.voice is None:
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success = await ctx.invoke(self.summon)
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if not success:
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return
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# If the queue is full, we ain't adding anything to it
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if state.songs.full:
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await self.bot.say("The queue is currently full! You'll need to wait to add a new song")
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return
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author_channel = ctx.message.author.voice.voice_channel
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my_channel = ctx.message.server.me.voice.voice_channel
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if my_channel is None:
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# If we're here this means that after 3 attempts...4 different "failsafes"...
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# Discord has returned saying the connection was successful, and returned a None connection
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await self.bot.say("I failed to connect to the channel! Please try again soon")
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return
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# To try to avoid some abuse, ensure the requester is actually in our channel
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if my_channel != author_channel:
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await self.bot.say("You are not currently in the channel; please join before trying to request a song.")
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return
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# Set the number of required skips to start
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num_members = len(my_channel.voice_members)
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state.required_skips = math.ceil((num_members + 1) / 3)
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# Create the player, and check if this was successful
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# Here all we want is to get the information of the player
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song = re.sub('[<>\[\]]', '', song)
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try:
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_entry, position = await state.songs.add_entry(song, ctx.message.author)
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except WrongEntryTypeError:
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# This means that a song was attempted to be searched, instead of a link provided
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try:
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info = await self.downloader.extract_info(self.bot.loop, song, download=False, process=True)
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song = info.get('entries', [])[0]['webpage_url']
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except IndexError:
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await self.bot.send_message(ctx.message.channel, "No results found for {}!".format(song))
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return
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except ExtractionError as e:
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# This gets the youtube_dl error, instead of our error raised
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error = str(e).split("\n\n")[1]
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# Youtube has a "fancy" colour error message it prints to the console
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# Obviously this doesn't work in Discord, so just remove this
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error = " ".join(error.split()[1:])
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await self.bot.send_message(ctx.message.channel, error)
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return
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try:
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_entry, position = await state.songs.add_entry(song, ctx.message.author)
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except WrongEntryTypeError:
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# This is either a playlist, or something not supported
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fmt = "Sorry but I couldn't download that! Either you provided a playlist, a streamed link, or " \
|
|
"a page that is not supported to download."
|
|
await self.bot.send_message(ctx.message.channel, fmt)
|
|
return
|
|
except ExtractionError as e:
|
|
# This gets the youtube_dl error, instead of our error raised
|
|
error = str(e).split("\n\n")[1]
|
|
# Youtube has a "fancy" colour error message it prints to the console
|
|
# Obviously this doesn't work in Discord, so just remove this
|
|
error = " ".join(error.split()[1:])
|
|
# Make sure we are not over our 2000 message limit length (there are some youtube errors that are)
|
|
if len(error) >= 2000:
|
|
error = "{}...".format(error[:1996])
|
|
await self.bot.send_message(ctx.message.channel, error)
|
|
return
|
|
await self.bot.say('Enqueued ' + str(_entry))
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(kick_members=True)
|
|
async def volume(self, ctx, value: int = None):
|
|
"""Sets the volume of the currently playing song."""
|
|
|
|
state = self.get_voice_state(ctx.message.server)
|
|
if value is None:
|
|
volume = state.volume
|
|
await self.bot.say("Current volume is {}".format(volume))
|
|
return
|
|
if value > 200:
|
|
await self.bot.say("Sorry but the max volume is 200")
|
|
return
|
|
state.volume = value
|
|
if state.is_playing():
|
|
player = state.player
|
|
player.volume = value / 100
|
|
await self.bot.say('Set the volume to {:.0%}'.format(player.volume))
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(kick_members=True)
|
|
async def pause(self, ctx):
|
|
"""Pauses the currently played song."""
|
|
state = self.get_voice_state(ctx.message.server)
|
|
if state.is_playing():
|
|
state.player.pause()
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(kick_members=True)
|
|
async def resume(self, ctx):
|
|
"""Resumes the currently played song."""
|
|
state = self.get_voice_state(ctx.message.server)
|
|
if state.is_playing():
|
|
state.player.resume()
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(kick_members=True)
|
|
async def stop(self, ctx):
|
|
"""Stops playing audio and leaves the voice channel.
|
|
This also clears the queue.
|
|
"""
|
|
server = ctx.message.server
|
|
state = self.get_voice_state(server)
|
|
|
|
# Stop playing whatever song is playing.
|
|
if state.is_playing():
|
|
state.player.stop()
|
|
|
|
state.songs.clear()
|
|
|
|
# This will stop cancel the audio event we're using to loop through the queue
|
|
# Then erase the voice_state entirely, and disconnect from the channel
|
|
try:
|
|
state.audio_player.cancel()
|
|
state.clear_audio_files()
|
|
await self.remove_voice_client(ctx.message.server)
|
|
del self.voice_states[server.id]
|
|
except:
|
|
pass
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(send_messages=True)
|
|
async def eta(self, ctx):
|
|
"""Provides an ETA on when your next song will play"""
|
|
# Note: There is no way to tell how long a song has been playing, or how long there is left on a song
|
|
# That is why this is called an "ETA"
|
|
state = self.get_voice_state(ctx.message.server)
|
|
author = ctx.message.author
|
|
|
|
if not state.is_playing():
|
|
await self.bot.say('Not playing any music right now...')
|
|
return
|
|
|
|
queue = state.songs.entries
|
|
if len(queue) == 0:
|
|
await self.bot.say("Nothing currently in the queue")
|
|
return
|
|
|
|
# Start off by adding the remaining length of the current song
|
|
count = state.current.remaining
|
|
found = False
|
|
# Loop through the songs in the queue, until the author is found as the requester
|
|
# The found bool is used to see if we actually found the author, or we just looped through the whole queue
|
|
for song in queue:
|
|
if song.requester == author:
|
|
found = True
|
|
break
|
|
count += song.duration
|
|
|
|
# This is checking if nothing from the queue has been added to the total
|
|
# If it has not, then we have not looped through the queue at all
|
|
# Since the queue was already checked to have more than one song in it, this means the author is next
|
|
if count == state.current.duration:
|
|
await self.bot.say("You are next in the queue!")
|
|
return
|
|
if not found:
|
|
await self.bot.say("You are not in the queue!")
|
|
return
|
|
await self.bot.say("ETA till your next play is: {0[0]}m {0[1]}s".format(divmod(round(count, 0), 60)))
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(send_messages=True)
|
|
async def queue(self, ctx):
|
|
"""Provides a printout of the songs that are in the queue"""
|
|
state = self.get_voice_state(ctx.message.server)
|
|
if not state.is_playing():
|
|
await self.bot.say('Not playing any music right now...')
|
|
return
|
|
|
|
# Asyncio provides no non-private way to access the queue, so we have to use _queue
|
|
queue = state.songs.entries
|
|
if len(queue) == 0:
|
|
await self.bot.say("Nothing currently in the queue")
|
|
else:
|
|
self.bot.loop.create_task(self.queue_embed_task(state, ctx.message.channel, ctx.message.author))
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(send_messages=True)
|
|
async def queuelength(self, ctx):
|
|
"""Prints the length of the queue"""
|
|
await self.bot.say("There are a total of {} songs in the queue"
|
|
.format(len(self.get_voice_state(ctx.message.server).songs.entries)))
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(send_messages=True)
|
|
async def skip(self, ctx):
|
|
"""Vote to skip a song. The song requester can automatically skip.
|
|
approximately 1/3 of the members in the voice channel
|
|
are required to vote to skip for the song to be skipped.
|
|
"""
|
|
|
|
state = self.get_voice_state(ctx.message.server)
|
|
if not state.is_playing():
|
|
await self.bot.say('Not playing any music right now...')
|
|
return
|
|
|
|
# Check if the person requesting a skip is the requester of the song, if so automatically skip
|
|
voter = ctx.message.author
|
|
if voter == state.current.requester:
|
|
await self.bot.say('Requester requested skipping song...')
|
|
state.skip()
|
|
# Otherwise check if the voter has already voted
|
|
elif voter.id not in state.skip_votes:
|
|
state.skip_votes.add(voter.id)
|
|
total_votes = len(state.skip_votes)
|
|
|
|
# Now check how many votes have been made, if 3 then go ahead and skip, otherwise add to the list of votes
|
|
if total_votes >= state.required_skips:
|
|
await self.bot.say('Skip vote passed, skipping song...')
|
|
state.skip()
|
|
else:
|
|
await self.bot.say('Skip vote added, currently at [{}/{}]'.format(total_votes, state.required_skips))
|
|
else:
|
|
await self.bot.say('You have already voted to skip this song.')
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(kick_members=True)
|
|
async def modskip(self, ctx):
|
|
"""Forces a song skip, can only be used by a moderator"""
|
|
state = self.get_voice_state(ctx.message.server)
|
|
if not state.is_playing():
|
|
await self.bot.say('Not playing any music right now...')
|
|
return
|
|
|
|
state.skip()
|
|
await self.bot.say('Song has just been skipped.')
|
|
|
|
@commands.command(pass_context=True, no_pm=True)
|
|
@utils.custom_perms(send_messages=True)
|
|
async def playing(self, ctx):
|
|
"""Shows info about the currently played song."""
|
|
|
|
state = self.get_voice_state(ctx.message.server)
|
|
if not state.is_playing():
|
|
await self.bot.say('Not playing anything.')
|
|
else:
|
|
# Create the embed object we'll use
|
|
embed = discord.Embed()
|
|
# Fill in the simple things
|
|
embed.add_field(name='Title', value=state.current.title, inline=False)
|
|
embed.add_field(name='Requester', value=state.current.requester.display_name, inline=False)
|
|
# Get the amount of current skips, and display how many have been skipped/how many required
|
|
skip_count = len(state.skip_votes)
|
|
embed.add_field(name='Skip Count', value='{}/{}'.format(skip_count, state.required_skips), inline=False)
|
|
# Get the current progress and display this
|
|
progress = state.current.progress
|
|
length = state.current.length
|
|
progress = divmod(round(progress, 0), 60)
|
|
length = divmod(round(length, 0), 60)
|
|
fmt = "{0[0]}m {0[1]}s/{1[0]}m {1[1]}s".format(progress, length)
|
|
embed.add_field(name='Progress', value=fmt,inline=False)
|
|
# And send the embed
|
|
await self.bot.say(embed=embed)
|
|
|
|
|
|
def setup(bot):
|
|
bot.add_cog(Music(bot))
|