forked from kate/uniborg
101 lines
3.3 KiB
Python
101 lines
3.3 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import asyncio
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import importlib.util
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import logging
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from pathlib import Path
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from telethon import TelegramClient
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import telethon.utils
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import telethon.events
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from .storage import Storage
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from . import hacks
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class Uniborg(TelegramClient):
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def __init__(
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self, session, *, plugin_path="plugins", storage=None,
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bot_token=None, **kwargs):
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# TODO: handle non-string session
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#
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# storage should be a callable accepting plugin name -> Storage object.
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# This means that using the Storage type as a storage would work too.
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self._name = session
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self.storage = storage or (lambda n: Storage(Path("data") / n))
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self._logger = logging.getLogger(session)
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self._plugins = {}
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self._plugin_path = plugin_path
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kwargs = {
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"api_id": 6, "api_hash": "eb06d4abfb49dc3eeb1aeb98ae0f581e",
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**kwargs}
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super().__init__(session, **kwargs)
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# This is a hack, please avert your eyes
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# We want this in order for the most recently added handler to take
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# precedence
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self._event_builders = hacks.ReverseList()
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self.loop.run_until_complete(self._async_init(bot_token=bot_token))
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core_plugin = Path(__file__).parent / "_core.py"
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self.load_plugin_from_file(core_plugin)
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for p in Path().glob(f"{self._plugin_path}/*.py"):
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self.load_plugin_from_file(p)
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async def _async_init(self, **kwargs):
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await self.start(**kwargs)
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self.me = await self.get_me()
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self.uid = telethon.utils.get_peer_id(self.me)
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def load_plugin(self, shortname):
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self.load_plugin_from_file(f"{self._plugin_path}/{shortname}.py")
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def load_plugin_from_file(self, path):
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path = Path(path)
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shortname = path.stem
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name = f"_UniborgPlugins.{self._name}.{shortname}"
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spec = importlib.util.spec_from_file_location(name, path)
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mod = importlib.util.module_from_spec(spec)
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mod.borg = self
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mod.logger = logging.getLogger(shortname)
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mod.storage = self.storage(f"{self._name}/{shortname}")
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spec.loader.exec_module(mod)
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self._plugins[shortname] = mod
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self._logger.info(f"Successfully loaded plugin {shortname}")
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def remove_plugin(self, shortname):
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name = self._plugins[shortname].__name__
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for i in reversed(range(len(self._event_builders))):
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ev, cb = self._event_builders[i]
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if cb.__module__ == name:
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del self._event_builders[i]
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del self._plugins[shortname]
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self._logger.info(f"Removed plugin {shortname}")
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def await_event(self, event_matcher, filter=None):
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fut = asyncio.Future()
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@self.on(event_matcher)
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async def cb(event):
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try:
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if filter is None or await filter(event):
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fut.set_result(event)
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except telethon.events.StopPropagation:
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fut.set_result(event)
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raise
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fut.add_done_callback(
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lambda _: self.remove_event_handler(cb, event_matcher))
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return fut
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