moment/src/python/nio_callbacks.py
2019-12-08 12:46:25 -04:00

380 lines
13 KiB
Python

import asyncio
import json
import logging as log
from contextlib import suppress
from dataclasses import dataclass, field
from datetime import datetime
from typing import Optional, Tuple
from urllib.parse import quote
import nio
from . import utils
from .html_filter import HTML_FILTER
from .matrix_client import MatrixClient
from .models.items import Account, Room, TypeSpecifier
@dataclass
class NioCallbacks:
client: MatrixClient = field()
def __post_init__(self) -> None:
c = self.client
for name, class_ in utils.classes_defined_in(nio.responses).items():
with suppress(AttributeError):
c.add_response_callback(getattr(self, f"on{name}"), class_)
for name, class_ in utils.classes_defined_in(nio.events).items():
with suppress(AttributeError):
c.add_event_callback(getattr(self, f"on{name}"), class_)
c.add_ephemeral_callback(
self.onTypingNoticeEvent, nio.events.TypingNoticeEvent,
)
async def onSyncResponse(self, resp: nio.SyncResponse) -> None:
c = self.client
for room_id, info in resp.rooms.join.items():
if room_id not in c.past_tokens:
c.past_tokens[room_id] = info.timeline.prev_batch
# TODO: way of knowing if a nio.MatrixRoom is left
for room_id, info in resp.rooms.leave.items():
# TODO: handle in nio, these are rooms that were left before
# starting the client.
if room_id not in c.all_rooms:
log.warning("Left room not in MatrixClient.rooms: %r", room_id)
continue
# TODO: handle left events in nio async client
for ev in info.timeline.events:
if isinstance(ev, nio.RoomMemberEvent):
await self.onRoomMemberEvent(c.all_rooms[room_id], ev)
await c.register_nio_room(c.all_rooms[room_id], left=True)
if not c.first_sync_done.is_set():
self.client.load_rooms_task = asyncio.ensure_future(
c.load_rooms_without_visible_events(),
)
c.first_sync_done.set()
c.first_sync_date = datetime.now()
c.models[Account][c.user_id].first_sync_done = True
async def onErrorResponse(self, resp: nio.ErrorResponse) -> None:
# TODO: show something in the client, must be seen on login screen too
try:
log.warning("%s - %s", resp, json.dumps(vars(resp), indent=4))
except Exception:
log.warning(repr(resp))
# Callbacks for nio room events
# Content: %1 is the sender, %2 the target (ev.state_key).
async def onRoomMessageText(self, room, ev) -> None:
co = HTML_FILTER.filter(
ev.formatted_body
if ev.format == "org.matrix.custom.html" else
utils.plain2html(ev.body),
)
await self.client.register_nio_event(room, ev, content=co)
async def onRoomMessageNotice(self, room, ev) -> None:
await self.onRoomMessageText(room, ev)
async def onRoomMessageEmote(self, room, ev) -> None:
await self.onRoomMessageText(room, ev)
async def onRoomMessageUnknown(self, room, ev) -> None:
co = f"%1 sent an unsupported <b>{ev.msgtype}</b> message"
await self.client.register_nio_event(room, ev, content=co)
async def onRoomMessageMedia(self, room, ev) -> None:
info = ev.source["content"].get("info", {})
media_crypt_dict = ev.source["content"].get("file", {})
thumb_info = info.get("thumbnail_info", {})
thumb_crypt_dict = info.get("thumbnail_file", {})
await self.client.register_nio_event(
room,
ev,
content = "",
inline_content = ev.body,
media_url = ev.url,
media_title = ev.body,
media_width = info.get("w") or 0,
media_height = info.get("h") or 0,
media_duration = info.get("duration") or 0,
media_size = info.get("size") or 0,
media_mime = info.get("mimetype") or 0,
media_crypt_dict = media_crypt_dict,
thumbnail_url =
info.get("thumbnail_url") or thumb_crypt_dict.get("url") or "",
thumbnail_width = thumb_info.get("w") or 0,
thumbnail_height = thumb_info.get("h") or 0,
thumbnail_crypt_dict = thumb_crypt_dict,
)
async def onRoomEncryptedMedia(self, room, ev) -> None:
await self.onRoomMessageMedia(room, ev)
async def onRoomCreateEvent(self, room, ev) -> None:
co = "%1 allowed users on other matrix servers to join this room" \
if ev.federate else \
"%1 blocked users on other matrix servers from joining this room"
await self.client.register_nio_event(room, ev, content=co)
async def onRoomGuestAccessEvent(self, room, ev) -> None:
allowed = "allowed" if ev.guest_access else "forbad"
co = f"%1 {allowed} guests to join the room"
await self.client.register_nio_event(room, ev, content=co)
async def onRoomJoinRulesEvent(self, room, ev) -> None:
access = "public" if ev.join_rule == "public" else "invite-only"
co = f"%1 made the room {access}"
await self.client.register_nio_event(room, ev, content=co)
async def onRoomHistoryVisibilityEvent(self, room, ev) -> None:
if ev.history_visibility == "shared":
to = "all room members"
elif ev.history_visibility == "world_readable":
to = "any member or outsider"
elif ev.history_visibility == "joined":
to = "all room members, since the time they joined"
elif ev.history_visibility == "invited":
to = "all room members, since the time they were invited"
else:
to = "???"
log.warning("Invalid visibility - %s",
json.dumps(vars(ev), indent=4))
co = f"%1 made future room history visible to {to}"
await self.client.register_nio_event(room, ev, content=co)
async def onPowerLevelsEvent(self, room, ev) -> None:
co = "%1 changed the room's permissions" # TODO: improve
await self.client.register_nio_event(room, ev, content=co)
async def process_room_member_event(
self, room, ev,
) -> Optional[Tuple[TypeSpecifier, str]]:
if ev.prev_content == ev.content:
return None
prev = ev.prev_content
now = ev.content
membership = ev.membership
prev_membership = ev.prev_membership
ev_date = datetime.fromtimestamp(ev.server_timestamp / 1000)
member_change = TypeSpecifier.membership_change
# Membership changes
if not prev or membership != prev_membership:
reason = f". Reason: {now['reason']}" if now.get("reason") else ""
if membership == "join":
return (
member_change,
"%1 accepted their invitation"
if prev and prev_membership == "invite" else
"%1 joined the room",
)
if membership == "invite":
return (member_change, "%1 invited %2 to the room")
if membership == "leave":
if ev.state_key == ev.sender:
return (
member_change,
f"%1 declined their invitation{reason}"
if prev and prev_membership == "invite" else
f"%1 left the room{reason}",
)
return (
member_change,
f"%1 withdrew %2's invitation{reason}"
if prev and prev_membership == "invite" else
f"%1 unbanned %2 from the room{reason}"
if prev and prev_membership == "ban" else
f"%1 kicked out %2 from the room{reason}",
)
if membership == "ban":
return (member_change, f"%1 banned %2 from the room{reason}")
# Profile changes
changed = []
if prev and now["avatar_url"] != prev["avatar_url"]:
changed.append("profile picture") # TODO: <img>s
if prev and now["displayname"] != prev["displayname"]:
changed.append('display name from "{}" to "{}"'.format(
prev["displayname"] or ev.state_key,
now["displayname"] or ev.state_key,
))
if changed:
# Update our account profile if the event is newer than last update
if ev.state_key == self.client.user_id:
account = self.client.models[Account][self.client.user_id]
updated = account.profile_updated
if not updated or updated < ev_date:
account.profile_updated = ev_date
account.display_name = now["displayname"] or ""
account.avatar_url = now["avatar_url"] or ""
# Hide profile events from the timeline - XXX
self.client.skipped_events[room.room_id] += 1
return None
return (
TypeSpecifier.profile_change,
"%1 changed their {}".format(" and ".join(changed)),
)
log.warning("Unknown member event: %s", json.dumps(vars(ev), indent=4))
return None
async def onRoomMemberEvent(self, room, ev) -> None:
type_and_content = await self.process_room_member_event(room, ev)
if type_and_content is None:
# This is run from register_nio_event otherwise
await self.client.register_nio_room(room)
else:
type_specifier, content = type_and_content
await self.client.register_nio_event(
room, ev, content=content, type_specifier=type_specifier,
)
async def onRoomAliasEvent(self, room, ev) -> None:
if ev.canonical_alias:
url = f"https://matrix.to/#/{quote(ev.canonical_alias)}"
link = f"<a href='{url}'>{ev.canonical_alias}</a>"
co = f"%1 set the room's main address to {link}"
else:
co = "%1 removed the room's main address"
await self.client.register_nio_event(room, ev, content=co)
async def onRoomNameEvent(self, room, ev) -> None:
if ev.name:
co = f"%1 changed the room's name to \"{ev.name}\""
else:
co = "%1 removed the room's name"
await self.client.register_nio_event(room, ev, content=co)
async def onRoomAvatarEvent(self, room, ev) -> None:
if ev.avatar_url:
co = "%1 changed the room's picture"
else:
co = "%1 removed the room's picture"
await self.client.register_nio_event(
room, ev, content=co, media_url=ev.avatar_url,
)
async def onRoomTopicEvent(self, room, ev) -> None:
if ev.topic:
topic = HTML_FILTER.filter_inline(ev.topic)
co = f"%1 changed the room's topic to \"{topic}\""
else:
co = "%1 removed the room's topic"
await self.client.register_nio_event(room, ev, content=co)
async def onRoomEncryptionEvent(self, room, ev) -> None:
co = "%1 turned on encryption for this room"
await self.client.register_nio_event(room, ev, content=co)
async def onMegolmEvent(self, room, ev) -> None:
co = "%1 sent an undecryptable message"
await self.client.register_nio_event(room, ev, content=co)
async def onBadEvent(self, room, ev) -> None:
co = f"%1 sent a malformed <b>{ev.type}</b> event"
await self.client.register_nio_event(room, ev, content=co)
async def onUnknownBadEvent(self, room, ev) -> None:
co = "%1 sent a malformed event lacking a minimal structure"
await self.client.register_nio_event(room, ev, content=co)
async def onUnknownEvent(self, room, ev) -> None:
co = f"%1 sent an unsupported <b>{ev.type}</b> event"
await self.client.register_nio_event(room, ev, content=co)
async def onUnknownEncryptedEvent(self, room, ev) -> None:
co = (
f"%1 sent an <b>{ev.type}</b> event encrypted with "
f"unsupported <b>{ev.algorithm}</b> algorithm"
)
await self.client.register_nio_event(room, ev, content=co)
# Callbacks for nio invite events
async def onInviteEvent(self, room, ev) -> None:
await self.client.register_nio_room(room)
# Callbacks for nio ephemeral events
async def onTypingNoticeEvent(self, room, ev) -> None:
# Prevent recent past typing notices from being shown for a split
# second on client startup:
if not self.client.first_sync_done.is_set():
return
if room.room_id not in self.client.models[Room, self.client.user_id]:
return
room_item = self.client.models[Room, self.client.user_id][room.room_id]
room_item.typing_members = sorted(
room.user_name(user_id) for user_id in ev.users
if user_id not in self.client.backend.clients
)