mirror of
https://github.com/uhIgnacio/EmoteManager.git
synced 2024-08-15 02:23:13 +00:00
452 lines
16 KiB
Python
452 lines
16 KiB
Python
#!/usr/bin/env python3
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# encoding: utf-8
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import asyncio
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import cgi
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import collections
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import contextlib
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import io
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import logging
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import operator
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import posixpath
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import traceback
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import urllib.parse
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import zipfile
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import warnings
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import weakref
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import aioec
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import aiohttp
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import discord
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import humanize
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from discord.ext import commands
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import utils
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import utils.archive
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import utils.image
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from utils import errors
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from utils.converter import emote_type_filter
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from utils.paginator import ListPaginator
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logger = logging.getLogger(__name__)
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# guilds can have duplicate emotes, so let us create zips to match
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warnings.filterwarnings('ignore', module='zipfile', category=UserWarning, message=r"^Duplicate name: .*$")
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class UserCancelledError(commands.UserInputError):
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pass
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class Emotes(commands.Cog):
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IMAGE_MIMETYPES = {'image/png', 'image/jpeg', 'image/gif'}
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# TAR_MIMETYPES = {'application/x-tar', 'application/x-xz', 'application/gzip', 'application/x-bzip2'}
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TAR_MIMETYPES = {'application/x-tar'}
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ZIP_MIMETYPES = {'application/zip', 'application/octet-stream', 'application/x-zip-compressed', 'multipart/x-zip'}
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ARCHIVE_MIMETYPES = TAR_MIMETYPES | ZIP_MIMETYPES
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def __init__(self, bot):
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self.bot = bot
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connector = None
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socks5_url = self.bot.config.get('socks5_proxy_url')
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if socks5_url:
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from aiohttp_socks import SocksConnector
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connector = SocksConnector.from_url(socks5_url, rdns=True)
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self.http = aiohttp.ClientSession(
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loop=self.bot.loop,
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read_timeout=self.bot.config.get('http_read_timeout', 60),
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connector=connector if self.bot.config.get('use_socks5_for_all_connections') else None,
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headers={
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'User-Agent':
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self.bot.config['user_agent'] + ' '
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+ self.bot.http.user_agent
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})
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self.aioec = aioec.Client(
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loop=self.bot.loop,
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connector=connector,
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base_url=self.bot.config.get('ec_api_base_url'))
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# keep track of paginators so we can end them when the cog is unloaded
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self.paginators = weakref.WeakSet()
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def cog_unload(self):
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async def close():
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await self.http.close()
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await self.aioec.close()
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for paginator in self.paginators:
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await paginator.stop()
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self.bot.loop.create_task(close())
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async def cog_check(self, context):
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if not context.guild or not isinstance(context.author, discord.Member):
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raise commands.NoPrivateMessage
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if context.command is self.list:
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return True
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if (
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not context.author.guild_permissions.manage_emojis
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or not context.guild.me.guild_permissions.manage_emojis
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):
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raise errors.MissingManageEmojisPermission
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return True
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@commands.command(usage='[name] <image URL or custom emote>')
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async def add(self, context, *args):
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"""Add a new emote to this server.
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You can use it like this:
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`add :thonkang:` (if you already have that emote)
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`add rollsafe https://image.noelshack.com/fichiers/2017/06/1486495269-rollsafe.png`
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`add speedtest <https://cdn.discordapp.com/emojis/379127000398430219.png>`
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With a file attachment:
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`add name` will upload a new emote using the first attachment as the image and call it `name`
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`add` will upload a new emote using the first attachment as the image,
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and its filename as the name
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"""
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name, url = self.parse_add_command_args(context, args)
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async with context.typing():
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message = await self.add_safe(context, name, url, context.message.author.id)
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await context.send(message)
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@classmethod
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def parse_add_command_args(cls, context, args):
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if context.message.attachments:
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return cls.parse_add_command_attachment(context, args)
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elif len(args) == 1:
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match = utils.emote.RE_CUSTOM_EMOTE.match(args[0])
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if match is None:
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raise commands.BadArgument(
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'Error: I expected a custom emote as the first argument, '
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'but I got something else. '
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"If you're trying to add an emote using an image URL, "
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'you need to provide a name as the first argument, like this:\n'
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'`{}add NAME_HERE URL_HERE`'.format(context.prefix))
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else:
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animated, name, id = match.groups()
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url = utils.emote.url(id, animated=animated)
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return name, url
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elif len(args) >= 2:
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name = args[0]
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match = utils.emote.RE_CUSTOM_EMOTE.match(args[1])
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if match is None:
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url = utils.strip_angle_brackets(args[1])
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else:
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url = utils.emote.url(match['id'], animated=match['animated'])
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return name, url
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elif not args:
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raise commands.BadArgument('Your message had no emotes and no name!')
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@classmethod
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def parse_add_command_attachment(cls, context, args):
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attachment = context.message.attachments[0]
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name = cls.format_emote_filename(''.join(args) if args else attachment.filename)
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url = attachment.url
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return name, url
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@staticmethod
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def format_emote_filename(filename):
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"""format a filename to an emote name as discord does when you upload an emote image"""
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return posixpath.splitext(filename)[0].replace(' ', '')
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@commands.command(name='add-from-ec', aliases=['addfromec'])
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async def add_from_ec(self, context, name, *names):
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"""Copies one or more emotes from Emote Collector to your server.
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The list of possible emotes you can copy is here:
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https://ec.emote.bot/list
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"""
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if names:
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for name in (name,) + names:
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await context.invoke(self.add_from_ec, name)
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return
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name = name.strip(':')
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try:
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emote = await self.aioec.emote(name)
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except aioec.NotFound:
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return await context.send("Emote not found in Emote Collector's database.")
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except aioec.HttpException as exception:
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return await context.send(
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f'Error: the Emote Collector API returned status code {exception.status}')
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reason = (
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f'Added from Emote Collector by {utils.format_user(self.bot, context.author.id)}. '
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f'Original emote author: {utils.format_user(self.bot, emote.author)}')
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async with context.typing():
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message = await self.add_safe(context, name, emote.url, context.author.id, reason=reason)
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await context.send(message)
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@commands.command()
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@commands.bot_has_permissions(attach_files=True)
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async def export(self, context, *, image_type: emote_type_filter = lambda _: True):
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"""Export all emotes from this server to a zip file, suitable for use with the import command.
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If “animated” is provided, only include animated emotes.
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If “static” is provided, only include static emotes.
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Otherwise, or if “all” is provided, export all emotes.
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This command requires the “attach files” permission.
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"""
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emotes = list(filter(image_type, context.guild.emojis))
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if not emotes:
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raise commands.BadArgument('No emotes of that type were found in this server.')
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out = io.BytesIO()
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async with context.typing():
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with zipfile.ZipFile(out, 'w', compression=zipfile.ZIP_STORED) as zip:
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async def store(emote):
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# place some level of trust on discord's CDN to actually give us images
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data = await self.fetch_safe(str(emote.url), validate_headers=False)
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if type(data) is str:
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await context.send(f'{emote}: {data}')
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return
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zinfo = zipfile.ZipInfo(
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f'{emote.name}.{"gif" if emote.animated else "png"}',
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date_time=emote.created_at.timetuple()[:6])
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zip.writestr(zinfo, data)
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await utils.gather_or_cancel(*(store(emote) for emote in emotes))
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out.seek(0)
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await context.send(file=discord.File(out, f'emotes-{context.guild.id}.zip'))
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@commands.command(name='import', aliases=['add-zip', 'add-tar', 'add-from-zip', 'add-from-tar'])
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async def import_(self, context, url=None):
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"""Add several emotes from a .zip or .tar archive.
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You may either pass a URL to an archive or upload one as an attachment.
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All valid GIF, PNG, and JPEG files in the archive will be uploaded as emotes.
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The rest will be ignored.
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"""
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if url and context.message.attachments:
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raise commands.BadArgument('Either a URL or an attachment must be given, not both.')
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if not url and not context.message.attachments:
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raise commands.BadArgument('A URL or attachment must be given.')
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url = url or context.message.attachments[0].url
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async with context.typing():
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archive = await self.fetch_safe(url, valid_mimetypes=self.ARCHIVE_MIMETYPES)
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if type(archive) is str: # error case
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await context.send(archive)
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return
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await self.add_from_archive(context, archive)
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with contextlib.suppress(discord.HTTPException):
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# so they know when we're done
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await context.message.add_reaction(utils.SUCCESS_EMOJIS[True])
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async def add_from_archive(self, context, archive):
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limit = 50_000_000 # prevent someone from trying to make a giant compressed file
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async for name, img, error in utils.archive.extract_async(io.BytesIO(archive), size_limit=limit):
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try:
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utils.image.mime_type_for_image(img)
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except errors.InvalidImageError:
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continue
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if error is None:
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name = self.format_emote_filename(posixpath.basename(name))
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async with context.typing():
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message = await self.add_safe_bytes(context, name, context.author.id, img)
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await context.send(message)
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continue
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if isinstance(error, errors.FileTooBigError):
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await context.send(
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f'{name}: file too big. '
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f'The limit is {humanize.naturalsize(error.limit)} '
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f'but this file is {humanize.naturalsize(error.size)}.')
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continue
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await context.send(f'{name}: {error}')
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async def add_safe(self, context, name, url, author_id, *, reason=None):
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"""Try to add an emote. Returns a string that should be sent to the user."""
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try:
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image_data = await self.fetch_safe(url)
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except errors.InvalidFileError:
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raise errors.InvalidImageError
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if type(image_data) is str: # error case
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return image_data
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return await self.add_safe_bytes(context, name, author_id, image_data, reason=reason)
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async def fetch_safe(self, url, valid_mimetypes=None, *, validate_headers=False):
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"""Try to fetch a URL. On error return a string that should be sent to the user."""
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try:
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return await self.fetch(url, valid_mimetypes=valid_mimetypes, validate_headers=validate_headers)
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except asyncio.TimeoutError:
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return 'Error: retrieving the image took too long.'
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except ValueError:
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return 'Error: Invalid URL.'
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except aiohttp.ClientResponseError as exc:
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raise errors.HTTPException(exc.status)
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async def add_safe_bytes(self, context, name, author_id, image_data: bytes, *, reason=None):
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"""Try to add an emote from bytes. On error, return a string that should be sent to the user.
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If the image is static and there are not enough free static slots, convert the image to a gif instead.
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"""
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counts = collections.Counter(map(operator.attrgetter('animated'), context.guild.emojis))
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# >= rather than == because there are sneaky ways to exceed the limit
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if counts[False] >= context.guild.emoji_limit and counts[True] >= context.guild.emoji_limit:
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# we raise instead of returning a string in order to abort commands that run this function in a loop
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raise commands.UserInputError('This server is out of emote slots.')
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static = utils.image.mime_type_for_image(image_data) != 'image/gif'
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converted = False
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if static and counts[False] >= context.guild.emoji_limit:
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image_data = await utils.image.convert_to_gif_in_subprocess(image_data)
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converted = True
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try:
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emote = await self.create_emote_from_bytes(context.guild, name, author_id, image_data, reason=reason)
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except discord.InvalidArgument:
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return discord.utils.escape_mentions(f'{name}: The file supplied was not a valid GIF, PNG, or JPEG file.')
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except discord.HTTPException as ex:
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return discord.utils.escape_mentions(
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f'{name}: An error occurred while creating the the emote:\n'
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+ utils.format_http_exception(ex))
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s = f'Emote {emote} successfully created'
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return s + ' as a GIF.' if converted else s + '.'
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async def fetch(self, url, valid_mimetypes=None, *, validate_headers=True):
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valid_mimetypes = valid_mimetypes or self.IMAGE_MIMETYPES
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def validate_headers(response):
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response.raise_for_status()
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# some dumb servers also send '; charset=UTF-8' which we should ignore
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mimetype, options = cgi.parse_header(response.headers.get('Content-Type', ''))
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if mimetype not in valid_mimetypes:
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raise errors.InvalidFileError
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async def validate(request):
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try:
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async with request as response:
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validate_headers(response)
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return await response.read()
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except aiohttp.ClientResponseError:
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raise
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except aiohttp.ClientError as exc:
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raise errors.EmoteManagerError(f'An error occurred while retrieving the file: {exc}')
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if validate_headers: await validate(self.http.head(url, timeout=self.bot.config.get('http_head_timeout', 10)))
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return await validate(self.http.get(url))
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async def create_emote_from_bytes(self, guild, name, author_id, image_data: bytes, *, reason=None):
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image_data = await utils.image.resize_in_subprocess(image_data)
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if reason is None:
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reason = f'Created by {utils.format_user(self.bot, author_id)}'
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return await guild.create_custom_emoji(name=name, image=image_data, reason=reason)
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@commands.command(aliases=('delete', 'delet', 'rm'))
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async def remove(self, context, emote, *emotes):
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"""Remove an emote from this server.
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emotes: the name of an emote or of one or more emotes you'd like to remove.
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"""
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if not emotes:
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emote = await self.parse_emote(context, emote)
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await emote.delete(reason=f'Removed by {utils.format_user(self.bot, context.author.id)}')
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await context.send(fr'Emote \:{emote.name}: successfully removed.')
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else:
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for emote in (emote,) + emotes:
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await context.invoke(self.remove, emote)
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with contextlib.suppress(discord.HTTPException):
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await context.message.add_reaction(utils.SUCCESS_EMOJIS[True])
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@commands.command(aliases=('mv',))
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async def rename(self, context, old, new_name):
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"""Rename an emote on this server.
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old: the name of the emote to rename, or the emote itself
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new_name: what you'd like to rename it to
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"""
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emote = await self.parse_emote(context, old)
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try:
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await emote.edit(
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name=new_name,
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reason=f'Renamed by {utils.format_user(self.bot, context.author.id)}')
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except discord.HTTPException as ex:
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return await context.send(
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'An error occurred while renaming the emote:\n'
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+ utils.format_http_exception(ex))
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await context.send(fr'Emote successfully renamed to \:{new_name}:')
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@commands.command(aliases=('ls', 'dir'))
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async def list(self, context, animated: emote_type_filter = lambda _: True):
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"""A list of all emotes on this server.
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The list shows each emote and its raw form.
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If "animated" is provided, only show animated emotes.
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If "static" is provided, only show static emotes.
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Otherwise, or if “all” is provided, show all emotes.
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"""
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emotes = sorted(
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filter(animated, context.guild.emojis),
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key=lambda e: e.name.lower())
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processed = []
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for emote in emotes:
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raw = str(emote).replace(':', r'\:')
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processed.append(f'{emote} {raw}')
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paginator = ListPaginator(context, processed)
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self.paginators.add(paginator)
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await paginator.begin()
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async def parse_emote(self, context, name_or_emote):
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match = utils.emote.RE_CUSTOM_EMOTE.match(name_or_emote)
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if match:
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id = int(match.group('id'))
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emote = discord.utils.get(context.guild.emojis, id=id)
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if emote:
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return emote
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name = name_or_emote
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return await self.disambiguate(context, name)
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async def disambiguate(self, context, name):
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name = name.strip(':') # in case the user tries :foo: and foo is animated
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candidates = [e for e in context.guild.emojis if e.name.lower() == name.lower() and e.require_colons]
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if not candidates:
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raise errors.EmoteNotFoundError(name)
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if len(candidates) == 1:
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return candidates[0]
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message = ['Multiple emotes were found with that name. Which one do you mean?']
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for i, emote in enumerate(candidates, 1):
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message.append(fr'{i}. {emote} (\:{emote.name}:)')
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await context.send('\n'.join(message))
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def check(message):
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try:
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int(message.content)
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except ValueError:
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return False
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else:
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return message.author == context.author
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try:
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message = await self.bot.wait_for('message', check=check, timeout=30)
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except asyncio.TimeoutError:
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raise commands.UserInputError('Sorry, you took too long. Try again.')
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return candidates[int(message.content)-1]
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def setup(bot):
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bot.add_cog(Emotes(bot))
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