Tulir Asokan
326 lines
12 KiB
Python
326 lines
12 KiB
Python
# -*- coding: future_fstrings -*-
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# 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 Affero 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 Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from typing import Any, Dict, Optional, Tuple
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from ruamel.yaml import YAML
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from ruamel.yaml.comments import CommentedMap
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import random
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import string
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yaml = YAML() # type: YAML
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yaml.indent(4)
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class DictWithRecursion:
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def __init__(self, data: Optional[CommentedMap] = None) -> None:
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self._data = data or CommentedMap() # type: CommentedMap
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@staticmethod
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def _parse_key(key: str) -> Tuple[str, Optional[str]]:
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if '.' not in key:
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return key, None
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key, next_key = key.split('.', 1)
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if len(key) > 0 and key[0] == "[":
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end_index = next_key.index("]")
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key = key[1:] + "." + next_key[:end_index]
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next_key = next_key[end_index + 2:] if len(next_key) > end_index + 1 else None
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return key, next_key
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def _recursive_get(self, data: CommentedMap, key: str, default_value: Any) -> Any:
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key, next_key = self._parse_key(key)
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if next_key is not None:
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next_data = data.get(key, CommentedMap())
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return self._recursive_get(next_data, next_key, default_value)
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return data.get(key, default_value)
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def get(self, key: str, default_value: Any, allow_recursion: bool = True) -> Any:
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if allow_recursion and '.' in key:
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return self._recursive_get(self._data, key, default_value)
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return self._data.get(key, default_value)
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def __getitem__(self, key: str) -> Any:
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return self.get(key, None)
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def __contains__(self, key: str) -> bool:
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return self[key] is not None
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def _recursive_set(self, data: CommentedMap, key: str, value: Any) -> None:
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key, next_key = self._parse_key(key)
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if next_key is not None:
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if key not in data:
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data[key] = CommentedMap()
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next_data = data.get(key, CommentedMap())
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return self._recursive_set(next_data, next_key, value)
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data[key] = value
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def set(self, key: str, value: Any, allow_recursion: bool = True) -> None:
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if allow_recursion and '.' in key:
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self._recursive_set(self._data, key, value)
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return
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self._data[key] = value
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def __setitem__(self, key: str, value: Any) -> None:
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self.set(key, value)
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def _recursive_del(self, data: CommentedMap, key: str) -> None:
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key, next_key = self._parse_key(key)
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if next_key is not None:
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if key not in data:
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return
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next_data = data[key]
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return self._recursive_del(next_data, next_key)
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try:
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del data[key]
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del data.ca.items[key]
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except KeyError:
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pass
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def delete(self, key: str, allow_recursion: bool = True) -> None:
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if allow_recursion and '.' in key:
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self._recursive_del(self._data, key)
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return
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try:
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del self._data[key]
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del self._data.ca.items[key]
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except KeyError:
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pass
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def __delitem__(self, key: str) -> None:
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self.delete(key)
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class Config(DictWithRecursion):
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def __init__(self, path: str, registration_path: str, base_path: str) -> None:
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super().__init__()
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self.path = path # type: str
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self.registration_path = registration_path # type: str
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self.base_path = base_path # type: str
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self._registration = None # type: Optional[Dict]
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def load(self) -> None:
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with open(self.path, 'r') as stream:
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self._data = yaml.load(stream)
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def load_base(self) -> Optional[DictWithRecursion]:
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try:
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with open(self.base_path, 'r') as stream:
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return DictWithRecursion(yaml.load(stream))
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except OSError:
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pass
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return None
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def save(self) -> None:
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with open(self.path, 'w') as stream:
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yaml.dump(self._data, stream)
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if self._registration and self.registration_path:
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with open(self.registration_path, 'w') as stream:
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yaml.dump(self._registration, stream)
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@staticmethod
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def _new_token() -> str:
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return "".join(random.choice(string.ascii_lowercase + string.digits) for _ in range(64))
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def update(self) -> None:
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base = self.load_base()
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if not base:
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return
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def copy(from_path, to_path=None) -> None:
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if from_path in self:
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base[to_path or from_path] = self[from_path]
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def copy_dict(from_path, to_path=None, override_existing_map=True) -> None:
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if from_path in self:
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to_path = to_path or from_path
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if override_existing_map or to_path not in base:
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base[to_path] = CommentedMap()
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for key, value in self[from_path].items():
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base[to_path][key] = value
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copy("homeserver.address")
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copy("homeserver.verify_ssl")
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copy("homeserver.domain")
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if "appservice.protocol" in self and "appservice.address" not in self:
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protocol, hostname, port = (self["appservice.protocol"], self["appservice.hostname"],
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self["appservice.port"])
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base["appservice.address"] = f"{protocol}://{hostname}:{port}"
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else:
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copy("appservice.address")
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copy("appservice.hostname")
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copy("appservice.port")
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copy("appservice.max_body_size")
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copy("appservice.database")
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copy("appservice.sqlalchemy_core_mode")
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copy("appservice.public.enabled")
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copy("appservice.public.prefix")
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copy("appservice.public.external")
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copy("appservice.provisioning.enabled")
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copy("appservice.provisioning.prefix")
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copy("appservice.provisioning.shared_secret")
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if base["appservice.provisioning.shared_secret"] == "generate":
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base["appservice.provisioning.shared_secret"] = self._new_token()
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copy("appservice.id")
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copy("appservice.bot_username")
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copy("appservice.bot_displayname")
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copy("appservice.bot_avatar")
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copy("appservice.as_token")
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copy("appservice.hs_token")
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copy("bridge.username_template")
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copy("bridge.alias_template")
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copy("bridge.displayname_template")
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copy("bridge.displayname_preference")
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copy("bridge.edits_as_replies")
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copy("bridge.highlight_edits")
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if isinstance(self["bridge.bridge_notices"], bool):
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base["bridge.bridge_notices"] = {
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"default": self["bridge.bridge_notices"],
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"exceptions": ["@importantbot:example.com"],
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}
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else:
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copy("bridge.bridge_notices")
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copy("bridge.bot_messages_as_notices")
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copy("bridge.max_initial_member_sync")
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copy("bridge.sync_channel_members")
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copy("bridge.sync_matrix_state")
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copy("bridge.max_telegram_delete")
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copy("bridge.allow_matrix_login")
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copy("bridge.inline_images")
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copy("bridge.plaintext_highlights")
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copy("bridge.public_portals")
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copy("bridge.catch_up")
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copy("bridge.sync_with_custom_puppets")
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copy("bridge.telegram_link_preview")
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copy("bridge.deduplication.pre_db_check")
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copy("bridge.deduplication.cache_queue_length")
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if "bridge.message_formats.m_text" in self:
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del self["bridge.message_formats"]
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copy_dict("bridge.message_formats", override_existing_map=False)
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copy("bridge.state_event_formats.join")
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copy("bridge.state_event_formats.leave")
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copy("bridge.state_event_formats.name_change")
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copy("bridge.filter.mode")
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copy("bridge.filter.list")
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copy("bridge.command_prefix")
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migrate_permissions = ("bridge.permissions" not in self
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or "bridge.whitelist" in self
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or "bridge.admins" in self)
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if migrate_permissions:
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permissions = self["bridge.permissions"] or CommentedMap()
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for entry in self["bridge.whitelist"] or []:
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permissions[entry] = "full"
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for entry in self["bridge.admins"] or []:
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permissions[entry] = "admin"
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base["bridge.permissions"] = permissions
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else:
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copy_dict("bridge.permissions")
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if "bridge.relaybot" not in self:
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copy("bridge.authless_relaybot_portals", "bridge.relaybot.authless_portals")
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else:
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copy("bridge.relaybot.authless_portals")
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copy("bridge.relaybot.whitelist_group_admins")
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copy("bridge.relaybot.whitelist")
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copy("bridge.relaybot.ignore_own_incoming_events")
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copy("telegram.api_id")
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copy("telegram.api_hash")
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copy("telegram.bot_token")
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copy("telegram.server.enabled")
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copy("telegram.server.dc")
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copy("telegram.server.ip")
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copy("telegram.server.port")
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copy("telegram.proxy.type")
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copy("telegram.proxy.address")
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copy("telegram.proxy.port")
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copy("telegram.proxy.rdns")
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copy("telegram.proxy.username")
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copy("telegram.proxy.password")
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if "appservice.debug" in self and "logging" not in self:
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level = "DEBUG" if self["appservice.debug"] else "INFO"
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base["logging.root.level"] = level
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base["logging.loggers.mau.level"] = level
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base["logging.loggers.telethon.level"] = level
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else:
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copy("logging")
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self._data = base._data
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self.save()
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def _get_permissions(self, key: str) -> Tuple[bool, bool, bool, bool, bool, bool]:
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level = self["bridge.permissions"].get(key, "")
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admin = level == "admin"
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matrix_puppeting = level == "full" or admin
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puppeting = level == "puppeting" or matrix_puppeting
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user = level == "user" or puppeting
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relaybot = level == "relaybot" or user
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return relaybot, user, puppeting, matrix_puppeting, admin, level
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def get_permissions(self, mxid: str) -> Tuple[bool, bool, bool, bool, bool, bool]:
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permissions = self["bridge.permissions"] or {}
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if mxid in permissions:
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return self._get_permissions(mxid)
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homeserver = mxid[mxid.index(":") + 1:]
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if homeserver in permissions:
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return self._get_permissions(homeserver)
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return self._get_permissions("*")
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def generate_registration(self) -> None:
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homeserver = self["homeserver.domain"]
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username_format = self.get("bridge.username_template", "telegram_{userid}") \
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.format(userid=".+")
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alias_format = self.get("bridge.alias_template", "telegram_{groupname}") \
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.format(groupname=".+")
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self.set("appservice.as_token", self._new_token())
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self.set("appservice.hs_token", self._new_token())
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self._registration = {
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"id": self["appservice.id"] or "telegram",
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"as_token": self["appservice.as_token"],
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"hs_token": self["appservice.hs_token"],
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"namespaces": {
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"users": [{
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"exclusive": True,
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"regex": f"@{username_format}:{homeserver}"
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}],
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"aliases": [{
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"exclusive": True,
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"regex": f"#{alias_format}:{homeserver}"
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}]
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},
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"url": self["appservice.address"],
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"sender_localpart": self["appservice.bot_username"],
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"rate_limited": False
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}
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