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import ast
import os
import re
import discord
from discord import Embed, Color
REPLACEMENTS = {
re.compile(r'<@!?(?P<id>[0-9]+)>'): '(guild.get_member({id}) if guild is not None else client.get_user({id}))',
re.compile(r'<#(?P<id>[0-9]+)>'): '(discord.utils.get(all_channels, id={id}))',
re.compile(r'<@&(?P<id>[0-9]+)>'): '(discord.utils.get(all_roles, id={id}))',
}
async def handle_eval(message: discord.Message, client: discord.Client, to_eval: str,
strip_codeblock: bool = False, **kwargs):
channel = message.channel
author = message.author
all_channels = []
all_roles = []
for guild in client.guilds:
all_channels += guild.channels
all_roles += guild.roles
variables = {
'message': message,
'author': author,
'channel': channel,
'all_channels': all_channels,
'all_roles': all_roles,
'client': client,
'discord': discord,
'os': os,
'print': (lambda *text: client.loop.create_task(channel.send(' '.join(text)))),
'guild': channel.guild if hasattr(channel, 'guild') else None,
}
variables.update(kwargs)
lines = to_eval.strip().split('\n')
if strip_codeblock:
if lines[0].startswith("```"):
lines = lines[1:]
lines[-1] = ''.join(lines[-1].rsplit('```', 1))
block = '\n'.join(' ' + line for line in lines)
code = ("async def code({variables}):\n"
"{block}").format(variables=', '.join(variables.keys()), block=block)
for regex, replacement in REPLACEMENTS.items():
code = re.sub(regex, lambda match: replacement.format(**match.groupdict()), code)
try:
module = ast.parse(code)
except Exception as e:
await message.channel.send(
embed=Embed(color=Color.red(), description="Syntax Error: `%s`" % str(e)))
return
last = module.body[0].body[-1]
if isinstance(last, ast.Expr):
module.body[0].body[-1] = ast.copy_location(ast.Return(last.value), last)
_globals, _locals = {}, {}
try:
code = compile(module, '<string>', 'exec')
exec(code, _globals, _locals)
except Exception as e:
await message.channel.send(
embed=discord.Embed(color=discord.Color.red(), description="Compiler Error: `%s`" % (str(e))))
return
result = {**_globals, **_locals}
try:
result = await result["code"](**variables)
except Exception as e:
await message.channel.send(
embed=discord.Embed(color=discord.Color.red(), description="Runtime Error: `%s`" % (str(e))))
return
return await channel.send(
embed=Embed(
color=Color.red(),
description="📥 Evaluation success: ```py\n%r\n```" % result))
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