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PyLink/plugins/exec.py

109 lines
3.1 KiB
Python

"""
exec.py: Provides commands for executing raw code and debugging PyLink.
"""
from pylinkirc import utils, world
from pylinkirc.log import log
from pylinkirc.coremods import permissions
# These imports are not strictly necessary, but make the following modules
# easier to access through eval and exec.
import threading
import re
import time
import pylinkirc
import importlib
exec_locals_dict = {}
def _exec(irc, source, args, locals_dict=None):
"""<code>
Admin-only. Executes <code> in the current PyLink instance. This command performs backslash escaping of characters, so things like \\n and \\ will work.
\x02**WARNING: THIS CAN BE DANGEROUS IF USED IMPROPERLY!**\x02"""
permissions.checkPermissions(irc, source, ['exec.exec'])
# Allow using \n in the code, while escaping backslashes correctly otherwise.
args = bytes(' '.join(args), 'utf-8').decode("unicode_escape")
if not args.strip():
irc.reply('No code entered!')
return
log.info('(%s) Executing %r for %s', irc.name, args,
irc.getHostmask(source))
if locals_dict is None:
locals_dict = locals()
exec(args, globals(), locals_dict)
irc.reply("Done.")
utils.add_cmd(_exec, 'exec')
@utils.add_cmd
def iexec(irc, source, args):
"""<code>
Admin-only. Executes <code> in the current PyLink instance, using a persistent, isolated
locals scope (world.plugins['exec'].exec_local_dict).
\x02**WARNING: THIS CAN BE DANGEROUS IF USED IMPROPERLY!**\x02
"""
_exec(irc, source, args, locals_dict=exec_locals_dict)
def _eval(irc, source, args):
"""<Python expression>
Admin-only. Evaluates the given Python expression and returns the result.
\x02**WARNING: THIS CAN BE DANGEROUS IF USED IMPROPERLY!**\x02"""
permissions.checkPermissions(irc, source, ['exec.eval'])
args = ' '.join(args)
if not args.strip():
irc.reply('No code entered!')
return
log.info('(%s) Evaluating %r for %s', irc.name, args,
irc.getHostmask(source))
irc.reply(repr(eval(args)))
utils.add_cmd(_eval, 'eval')
@utils.add_cmd
def raw(irc, source, args):
"""<text>
Admin-only. Sends raw text to the uplink IRC server.
\x02**WARNING: THIS CAN BREAK YOUR NETWORK IF USED IMPROPERLY!**\x02"""
permissions.checkPermissions(irc, source, ['exec.raw'])
args = ' '.join(args)
if not args.strip():
irc.reply('No text entered!')
return
log.debug('(%s) Sending raw text %r to IRC for %s', irc.name, args,
irc.getHostmask(source))
irc.send(args)
irc.reply("Done.")
@utils.add_cmd
def inject(irc, source, args):
"""<text>
Admin-only. Injects raw text into the running PyLink protocol module, replying with the hook data returned.
\x02**WARNING: THIS CAN BREAK YOUR NETWORK IF USED IMPROPERLY!**\x02"""
permissions.checkPermissions(irc, source, ['exec.inject'])
args = ' '.join(args)
if not args.strip():
irc.reply('No text entered!')
return
log.info('(%s) Injecting raw text %r into protocol module for %s', irc.name,
args, irc.getHostmask(source))
irc.reply(irc.runline(args))