Tulir Asokan
115 lines
4.5 KiB
Python
115 lines
4.5 KiB
Python
# mautrix-telegram - A Matrix-Telegram puppeting bridge
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# Copyright (C) 2018 Tulir Asokan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import markdown
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import logging
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from telethon.errors import FloodWaitError
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command_handlers = {}
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def command_handler(needs_auth=True, management_only=False, needs_admin=False, name=None):
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def decorator(func):
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def wrapper(evt):
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if management_only and not evt.is_management:
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return evt.reply(f"`{evt.command}` is a restricted command:"
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+ "you may only run it in management rooms.")
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elif needs_auth and not evt.sender.logged_in:
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return evt.reply("This command requires you to be logged in.")
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elif needs_admin and not evt.sender.is_admin:
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return evt.reply("This is command requires administrator privileges.")
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return func(evt)
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command_handlers[name or func.__name__.replace("_", "-")] = wrapper
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return wrapper
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return decorator
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class CommandEvent:
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def __init__(self, handler, room, sender, command, args, is_management, is_portal):
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self.az = handler.az
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self.log = handler.log
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self.loop = handler.loop
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self.command_prefix = handler.command_prefix
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self.room_id = room
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self.sender = sender
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self.command = command
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self.args = args
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self.is_management = is_management
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self.is_portal = is_portal
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def reply(self, message, allow_html=False, render_markdown=True):
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message = message.replace("$cmdprefix+sp ",
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"" if self.is_management else f"{self.command_prefix} ")
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message = message.replace("$cmdprefix", self.command_prefix)
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html = None
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if render_markdown:
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html = markdown.markdown(message, safe_mode="escape" if allow_html else False)
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elif allow_html:
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html = message
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return self.az.intent.send_notice(self.room_id, message, html=html)
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def format_duration(seconds):
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def pluralize(count, singular): return singular if count == 1 else singular + "s"
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def include(count, word): return f"{count} {pluralize(count, word)}" if count > 0 else ""
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minutes, seconds = divmod(seconds, 60)
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hours, minutes = divmod(minutes, 60)
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days, hours = divmod(hours, 24)
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parts = [a for a in [
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include(days, "day"),
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include(hours, "hour"),
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include(minutes, "minute"),
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include(seconds, "second")] if a]
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if len(parts) > 2:
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return "{} and {}".format(", ".join(parts[:-1]), parts[-1])
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return " and ".join(parts)
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class CommandHandler:
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log = logging.getLogger("mau.commands")
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def __init__(self, context):
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self.az, self.db, self.config, self.loop = context
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self.command_prefix = self.config["bridge.command_prefix"]
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# region Utility functions for handling commands
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async def handle(self, room, sender, command, args, is_management, is_portal):
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evt = CommandEvent(self, room, sender, command, args,
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is_management, is_portal)
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command = command.lower()
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try:
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command = command_handlers[command]
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except KeyError:
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if sender.command_status and "next" in sender.command_status:
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args.insert(0, command)
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evt.command = ""
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command = sender.command_status["next"]
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else:
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command = command_handlers["unknown_command"]
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try:
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await command(evt)
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except FloodWaitError as e:
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return evt.reply(f"Flood error: Please wait {format_duration(e.seconds)}")
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except Exception:
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self.log.exception(f"Fatal error handling command "
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+ f"{evt.command} {' '.join(args)} from {sender.mxid}")
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return evt.reply("Fatal error while handling command. Check logs for more details.")
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