utility.py 文件源码

def steal_emoji(self, ctx: DogbotContext, emoji: EmojiStealer, name=None):
        """
        Imports an external emoji into this server.

        You can specify an emoji ID, the custom emoji itself, or "recent" to make the bot scan for recent messages
        with a custom emoji that isn't already in this server. If you provide a name, the bot will use that when
        uploading the emoji, instead of the name it finds. The name parameter is mandatory if you specify an emoji ID.
        """
        emoji_url = f'https://cdn.discordapp.com/emojis/{emoji[0]}.png'

        if not emoji.name and not name:
            return await ctx.send('You must provide the name for the stolen emoji.')

        # strip colons from name if they are there
        name = None if not name else name.strip(':')

        msg = await ctx.send('Downloading...')

        try:
            async with ctx.bot.session.get(emoji_url) as emoji_resp:
                emoji_bytes = await emoji_resp.read()

                if emoji_resp.status != 200 or not emoji_bytes:
                    return await ctx.send('Failed to download the emoji.')

                # steal
                emoji = await ctx.guild.create_custom_emoji(name=name or emoji.name, image=emoji_bytes)

                # as confirmation, attempt to add react to the comamnd message with it, and fall back to ok
                try:
                    await msg.edit(content=str(emoji))
                    await msg.add_reaction(f'{emoji.name}:{emoji.id}')
                except discord.HTTPException:
                    await ctx.ok()
        except aiohttp.ClientError:
            await msg.edit(content='Failed to download the emoji.')
        except discord.HTTPException:
            await msg.edit(content='Failed to upload the emoji.')