365 lines
12 KiB
Python
365 lines
12 KiB
Python
import asyncio
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import html
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import inspect
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import json
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import logging as log
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import platform
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from contextlib import suppress
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from datetime import datetime
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from types import ModuleType
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from typing import Dict, Optional, Type
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import nio
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from nio.rooms import MatrixRoom
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from . import __about__
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from .events import rooms, users
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from .events.rooms import TimelineEventReceived, TimelineMessageReceived
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from .html_filter import HTML_FILTER
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class MatrixClient(nio.AsyncClient):
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def __init__(self,
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backend,
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user: str,
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homeserver: str = "https://matrix.org",
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device_id: Optional[str] = None) -> None:
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# TODO: ensure homeserver starts with a scheme://
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from .backend import Backend
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self.backend: Backend = backend
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self.sync_task: Optional[asyncio.Future] = None
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super().__init__(homeserver=homeserver, user=user, device_id=device_id)
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self.connect_callbacks()
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def __repr__(self) -> str:
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return "%s(user_id=%r, homeserver=%r, device_id=%r)" % (
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type(self).__name__, self.user_id, self.homeserver, self.device_id
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)
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@staticmethod
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def _classes_defined_in(module: ModuleType) -> Dict[str, Type]:
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return {
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m[0]: m[1] for m in inspect.getmembers(module, inspect.isclass)
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if not m[0].startswith("_") and
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m[1].__module__.startswith(module.__name__)
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}
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def connect_callbacks(self) -> None:
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for name, class_ in self._classes_defined_in(nio.responses).items():
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with suppress(AttributeError):
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self.add_response_callback(getattr(self, f"on{name}"), class_)
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for name, class_ in self._classes_defined_in(nio.events).items():
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with suppress(AttributeError):
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self.add_event_callback(getattr(self, f"on{name}"), class_)
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async def start_syncing(self) -> None:
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self.sync_task = asyncio.ensure_future(
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self.sync_forever(timeout=10_000)
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)
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def callback(task):
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raise task.exception()
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self.sync_task.add_done_callback(callback)
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@property
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def default_device_name(self) -> str:
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os_ = f" on {platform.system()}".rstrip()
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os_ = f"{os_} {platform.release()}".rstrip() if os_ != " on" else ""
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return f"{__about__.__pretty_name__}{os_}"
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async def login(self, password: str, device_name: str = "") -> None:
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response = await super().login(
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password, device_name or self.default_device_name
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)
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if isinstance(response, nio.LoginError):
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print(response)
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else:
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await self.start_syncing()
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async def resume(self, user_id: str, token: str, device_id: str) -> None:
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response = nio.LoginResponse(user_id, device_id, token)
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await self.receive_response(response)
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await self.start_syncing()
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async def logout(self) -> None:
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if self.sync_task:
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self.sync_task.cancel()
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with suppress(asyncio.CancelledError):
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await self.sync_task
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await self.close()
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async def request_user_update_event(self, user_id: str) -> None:
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print("Requesting user profile:", user_id)
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response = await self.get_profile(user_id)
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if isinstance(response, nio.ProfileGetError):
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log.warning("Error getting profile for %r: %s", user_id, response)
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users.UserUpdated(
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user_id = user_id,
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display_name = getattr(response, "displayname", "") or "",
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avatar_url = getattr(response, "avatar_url", "") or "",
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status_message = "", # TODO
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)
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async def send_markdown(self, room_id: str, text: str) -> None:
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content = {
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"body": text,
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"formatted_body": HTML_FILTER.from_markdown(text),
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"format": "org.matrix.custom.html",
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"msgtype": "m.text",
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}
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TimelineMessageReceived(
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event_type = nio.RoomMessageText,
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room_id = room_id,
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event_id = "local_echo",
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sender_id = self.user_id,
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date = datetime.now(),
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content = content["formatted_body"],
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is_local_echo = True,
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)
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await self.room_send(room_id, "m.room.message", content)
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# Callbacks for nio responses
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@staticmethod
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def _get_room_name(room: MatrixRoom) -> Optional[str]:
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# FIXME: reimplanted because of nio's non-standard room.display_name
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name = room.name or room.canonical_alias
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if name:
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return name
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name = room.group_name()
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return None if name == "Empty room?" else name
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async def onSyncResponse(self, resp: nio.SyncResponse) -> None:
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for room_id, _ in resp.rooms.invite.items():
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room: MatrixRoom = self.invited_rooms[room_id]
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rooms.RoomUpdated(
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user_id = self.user_id,
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category = "Invites",
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room_id = room_id,
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display_name = self._get_room_name(room) or "",
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avatar_url = room.gen_avatar_url or "",
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topic = room.topic or "",
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inviter = room.inviter or "",
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)
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for room_id, _ in resp.rooms.join.items():
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room = self.rooms[room_id]
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rooms.RoomUpdated(
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user_id = self.user_id,
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category = "Rooms",
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room_id = room_id,
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display_name = self._get_room_name(room) or "",
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avatar_url = room.gen_avatar_url or "",
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topic = room.topic or "",
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)
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for room_id, _ in resp.rooms.leave.items():
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rooms.RoomUpdated(
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user_id = self.user_id,
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category = "Left",
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room_id = room_id,
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# left_event TODO
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)
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# Callbacks for nio events
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# Special %tokens for event contents:
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# %S = sender's displayname
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# %T = target (ev.state_key)'s displayname
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async def onRoomMessageText(self, room, ev) -> None:
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co = HTML_FILTER.filter(
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ev.formatted_body
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if ev.format == "org.matrix.custom.html" else html.escape(ev.body)
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)
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TimelineMessageReceived.from_nio(room, ev, content=co)
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async def onRoomCreateEvent(self, room, ev) -> None:
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co = "%S allowed users on other matrix servers to join this room." \
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if ev.federate else \
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"%S blocked users on other matrix servers from joining this room."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onRoomGuestAccessEvent(self, room, ev) -> None:
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allowed = "allowed" if ev.guest_access else "forbad"
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co = f"%S {allowed} guests to join the room."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onRoomJoinRulesEvent(self, room, ev) -> None:
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access = "public" if ev.join_rule == "public" else "invite-only"
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co = f"%S made the room {access}."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onRoomHistoryVisibilityEvent(self, room, ev) -> None:
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if ev.history_visibility == "shared":
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to = "all room members"
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elif ev.history_visibility == "world_readable":
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to = "any member or outsider"
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elif ev.history_visibility == "joined":
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to = "all room members, since the time they joined"
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elif ev.history_visibility == "invited":
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to = "all room members, since the time they were invited"
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else:
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to = "???"
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log.warning("Invalid visibility - %s",
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json.dumps(ev.__dict__, indent=4))
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co = f"%S made future room history visible to {to}."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onPowerLevelsEvent(self, room, ev) -> None:
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co = "%S changed the room's permissions." # TODO: improve
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def _get_room_member_event_content(self, ev) -> Optional[str]:
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prev = ev.prev_content
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prev_membership = prev["membership"] if prev else None
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now = ev.content
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membership = now["membership"]
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if not prev or membership != prev_membership:
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reason = f" Reason: {now['reason']}" if now.get("reason") else ""
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if membership == "join":
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did = "accepted" if prev and prev_membership == "invite" else \
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"declined"
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return f"%S {did} their invitation."
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if membership == "invite":
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return f"%S invited %T to the room."
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if membership == "leave":
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if ev.state_key == ev.sender:
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return (
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f"%S declined their invitation.{reason}"
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if prev and prev_membership == "invite" else
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f"%S left the room.{reason}"
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)
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return (
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f"%S withdrew %T's invitation.{reason}"
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if prev and prev_membership == "invite" else
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f"%S unbanned %T from the room.{reason}"
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if prev and prev_membership == "ban" else
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f"%S kicked out %T from the room.{reason}"
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)
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if membership == "ban":
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return f"%S banned %T from the room.{reason}"
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if ev.sender in self.backend.clients:
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# Don't put our own name/avatar changes in the timeline
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return None
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changed = []
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if prev and now["avatar_url"] != prev["avatar_url"]:
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changed.append("profile picture") # TODO: <img>s
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if prev and now["displayname"] != prev["displayname"]:
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changed.append('display name from "{}" to "{}"'.format(
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prev["displayname"] or ev.state_key,
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now["displayname"] or ev.state_key,
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))
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if changed:
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return "%S changed their {}.".format(" and ".join(changed))
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log.warning("Invalid member event - %s",
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json.dumps(ev.__dict__, indent=4))
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return None
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async def onRoomMemberEvent(self, room, ev) -> None:
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# TODO: ignore for past events
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if ev.content["membership"] != "leave":
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users.UserUpdated(
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user_id = ev.state_key,
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display_name = ev.content["displayname"] or "",
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avatar_url = ev.content["avatar_url"] or "",
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status_message = "", # TODO
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)
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co = await self._get_room_member_event_content(ev)
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if co is not None:
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onRoomAliasEvent(self, room, ev) -> None:
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co = f"%S set the room's main address to {ev.canonical_alias}."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onRoomNameEvent(self, room, ev) -> None:
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co = f"%S changed the room's name to \"{ev.name}\"."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onRoomTopicEvent(self, room, ev) -> None:
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co = f"%S changed the room's topic to \"{ev.topic}\"."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onRoomEncryptionEvent(self, room, ev) -> None:
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co = f"%S turned on encryption for this room."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onOlmEvent(self, room, ev) -> None:
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co = f"%S hasn't sent your device the keys to decrypt this message."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onMegolmEvent(self, room, ev) -> None:
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await self.onOlmEvent(room, ev)
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async def onBadEvent(self, room, ev) -> None:
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co = f"%S sent a malformed event."
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TimelineEventReceived.from_nio(room, ev, content=co)
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async def onUnknownBadEvent(self, room, ev) -> None:
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co = f"%S sent an event this client doesn't understand."
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TimelineEventReceived.from_nio(room, ev, content=co)
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