2018-05-21 05:20:47 +02:00

126 lines
4.2 KiB
Python

from discord.ext import commands
import traceback
import textwrap
from contextlib import redirect_stdout
import io
class REPL:
"""Python in Discords"""
def __init__(self, bot):
self.bot = bot
self._last_result = None
self.sessions = set()
def cleanup_code(self, content):
"""
Automatically removes code blocks from the code.
"""
# remove ```py\n```
if content.startswith('```') and content.endswith('```'):
return '\n'.join(content.split('\n')[1:-1])
# remove `foo`
return content.strip('` \n')
def get_syntax_error(self, e):
if e.text is None:
return '{0.__class__.__name__}: {0}'.format(e)
return '{0.text}{1:>{0.offset}}\n{2}: {0}'.format(e, '^', type(e).__name__)
@commands.command(name='exec')
async def _eval(self, ctx, *, body: str = None):
"""
Execute python code in discord chat.
Only the owner of this bot can use this command.
Alias:
- exec
Usage:
- exec < python code >
Example:
- exec print(546132)
"""
if ctx.author.id not in self.bot.ownerlist:
return await ctx.send('Only my contributors can use me like this :blush:', delete_after=10)
if body is None:
return await ctx.send(
'Please, use\n'
f'`{self.bot.config["prefix"]}exec`\n\n'
'\n`\\`\\`\\`py\n[python code]\n\\`\\`\\`\n'
'to get the most out of the command')
env = {
'bot': self.bot,
'ctx': ctx,
'channel': ctx.message.channel,
'author': ctx.message.author,
'server': ctx.message.guild,
'message': ctx.message,
'_': self._last_result
}
env.update(globals())
body = self.cleanup_code(body)
stdout = io.StringIO()
to_compile = 'async def func():\n%s' % textwrap.indent(body, ' ')
try:
exec(to_compile, env)
except SyntaxError as e:
try:
msg = await ctx.send(f'```py\n{self.get_syntax_error(e)}\n```')
except Exception as e:
error = [self.get_syntax_error(e)[i:i+2000] for i in range(0, len(self.get_syntax_error(e)), 2000)]
for i in error:
msg = await ctx.send(f'```py\n{i}\n```')
func = env['func']
try:
with redirect_stdout(stdout):
ret = await func()
except Exception as e:
value = stdout.getvalue()
try:
msg = await ctx.send(f'```py\n{value}{traceback.format_exc()}\n```')
except Exception as e:
error = [value[i:i + 2000] for i in range(0, len(value), 2000)]
for i in error:
await ctx.send(f'```py\n{i}\n```')
tracebackerror = [traceback.format_exc()[i:i + 2000] for i in range(0, len(traceback.format_exc()), 2000)]
for i in tracebackerror:
msg = await ctx.send(f'```py\n{i}\n```')
else:
value = stdout.getvalue()
if ret is None:
if value:
try:
msg = await ctx.send(f'```py\n{value}\n```')
except Exception as e:
code = [value[i:i + 1980] for i in range(0, len(value), 1980)]
for i in code:
msg = await ctx.send(f'```py\n{i}\n```')
else:
self._last_result = ret
try:
code = [value[i:i + 1980] for i in range(0, len(value), 1980)]
for i in code:
msg = await ctx.send(f'```py\n{i}\n```')
except Exception as e:
code = [value[i:i + 1980] for i in range(0, len(value), 1980)]
for i in code:
await ctx.send(f'```py\n{i}\n```')
modifyd_ret = [ret[i:i + 1980] for i in range(0, len(ret), 1980)]
for i in modifyd_ret:
msg = await ctx.send(f'```py\n{i}\n```')
def setup(bot):
bot.add_cog(REPL(bot))