forked from kate/uniborg
102 lines
2.7 KiB
Python
102 lines
2.7 KiB
Python
from collections import defaultdict, deque
|
|
import re
|
|
|
|
import regex
|
|
from telethon import events, utils
|
|
from telethon.tl import types, functions
|
|
|
|
HEADER = "[[regex]]\n"
|
|
KNOWN_RE_BOTS = re.compile(
|
|
r'(regex|moku|BananaButler_)bot',
|
|
flags=re.IGNORECASE
|
|
)
|
|
|
|
# Heavily based on
|
|
# https://github.com/SijmenSchoon/regexbot/blob/master/regexbot.py
|
|
|
|
last_msgs = defaultdict(lambda: deque(maxlen=10))
|
|
|
|
|
|
def doit(chat_id, match, original):
|
|
fr = match.group(1)
|
|
to = match.group(2)
|
|
to = to.replace('\\/', '/')
|
|
try:
|
|
fl = match.group(3)
|
|
if fl is None:
|
|
fl = ''
|
|
fl = fl[1:]
|
|
except IndexError:
|
|
fl = ''
|
|
|
|
# Build Python regex flags
|
|
count = 1
|
|
flags = 0
|
|
for f in fl:
|
|
if f == 'i':
|
|
flags |= regex.IGNORECASE
|
|
elif f == 'g':
|
|
count = 0
|
|
else:
|
|
return None, f"Unknown flag: {f}"
|
|
|
|
def actually_doit(original):
|
|
try:
|
|
s = original.message
|
|
if s.startswith(HEADER):
|
|
s = s[len(HEADER):]
|
|
s, i = regex.subn(fr, to, s, count=count, flags=flags)
|
|
if i > 0:
|
|
return original, s
|
|
except Exception as e:
|
|
return None, f"u dun goofed m8: {str(e)}"
|
|
return None, None
|
|
|
|
if original is not None:
|
|
return actually_doit(original)
|
|
# Try matching the last few messages
|
|
for original in last_msgs[chat_id]:
|
|
m, s = actually_doit(original)
|
|
if s is not None:
|
|
return m, s
|
|
return None, None
|
|
|
|
|
|
async def group_has_regex(group):
|
|
if isinstance(group, types.InputPeerChannel):
|
|
full = await borg(functions.channels.GetFullChannelRequest(group))
|
|
elif isinstance(group, types.InputPeerChat):
|
|
full = await borg(functions.messages.GetFullChatRequest(group.chat_id))
|
|
else:
|
|
return False
|
|
|
|
return any(KNOWN_RE_BOTS.match(x.username or '') for x in full.users)
|
|
|
|
|
|
@borg.on(events.NewMessage)
|
|
async def on_message(event):
|
|
chat_id = utils.get_peer_id(await event.input_chat)
|
|
last_msgs[chat_id].appendleft(event.message)
|
|
|
|
|
|
@borg.on(events.NewMessage(
|
|
pattern=re.compile(r"^s/((?:\\/|[^/])+)/((?:\\/|[^/])*)(/.*)?")))
|
|
async def on_regex(event):
|
|
if event.forward:
|
|
return
|
|
if not event.is_private and await group_has_regex(await event.input_chat):
|
|
return
|
|
|
|
chat_id = utils.get_peer_id(await event.input_chat)
|
|
|
|
m, s = doit(chat_id, event.pattern_match, await event.reply_message)
|
|
|
|
if m is not None:
|
|
s = f"{HEADER}{s}"
|
|
out = await borg.send_message(await event.input_chat, s, reply_to=m.id)
|
|
last_msgs[chat_id].appendleft(out)
|
|
elif s is not None:
|
|
await event.reply(s)
|
|
|
|
raise events.StopPropagation
|