grapevine/src/service/rooms/state_cache.rs
2024-07-16 11:16:08 -07:00

435 lines
15 KiB
Rust

mod data;
use std::{collections::HashSet, sync::Arc};
pub(crate) use data::Data;
use ruma::{
events::{
direct::DirectEvent,
ignored_user_list::IgnoredUserListEvent,
room::{create::RoomCreateEventContent, member::MembershipState},
AnyStrippedStateEvent, AnySyncStateEvent, GlobalAccountDataEventType,
RoomAccountDataEventType, StateEventType,
},
serde::Raw,
OwnedRoomId, OwnedServerName, OwnedUserId, RoomId, ServerName, UserId,
};
use tracing::warn;
use crate::{service::appservice::RegistrationInfo, services, Error, Result};
pub(crate) struct Service {
pub(crate) db: &'static dyn Data,
}
type RoomsLeft = (OwnedRoomId, Vec<Raw<AnySyncStateEvent>>);
impl Service {
/// Update current membership data.
#[tracing::instrument(skip(self, last_state))]
pub(crate) fn update_membership(
&self,
room_id: &RoomId,
user_id: &UserId,
membership: MembershipState,
sender: &UserId,
last_state: Option<Vec<Raw<AnyStrippedStateEvent>>>,
update_joined_count: bool,
) -> Result<()> {
// Keep track what remote users exist by adding them as "deactivated"
// users
if user_id.server_name() != services().globals.server_name() {
services().users.create(user_id, None)?;
// TODO: displayname, avatar url
}
match &membership {
MembershipState::Join => {
// Check if the user never joined this room
if !self.once_joined(user_id, room_id)? {
// Add the user ID to the join list then
self.db.mark_as_once_joined(user_id, room_id)?;
// Check if the room has a predecessor
if let Some(predecessor) = services()
.rooms
.state_accessor
.room_state_get(
room_id,
&StateEventType::RoomCreate,
"",
)?
.and_then(|create| {
serde_json::from_str(create.content.get()).ok()
})
.and_then(|content: RoomCreateEventContent| {
content.predecessor
})
{
// Copy user settings from predecessor to the current
// room:
// - Push rules
//
// TODO: finish this once push rules are implemented.
//
// let mut push_rules_event_content: PushRulesEvent =
// account_data .get(
// None,
// user_id,
// EventType::PushRules,
// )?;
//
// NOTE: find where `predecessor.room_id` match
// and update to `room_id`.
//
// account_data
// .update(
// None,
// user_id,
// EventType::PushRules,
// &push_rules_event_content,
// globals,
// )
// .ok();
let event_kind = RoomAccountDataEventType::Tag;
// Copy old tags to new room
if let Some(tag_event) = services()
.account_data
.get(
Some(&predecessor.room_id),
user_id,
event_kind.clone(),
)?
.map(|event| {
serde_json::from_str(event.get()).map_err(
|error| {
warn!(
%error,
predecessor_room_id =
%predecessor.room_id,
%event_kind,
"Invalid account data event",
);
Error::BadDatabase(
"Invalid account data event.",
)
},
)
})
{
services()
.account_data
.update(
Some(room_id),
user_id,
RoomAccountDataEventType::Tag,
&tag_event?,
)
.ok();
};
let event_kind = RoomAccountDataEventType::from(
GlobalAccountDataEventType::Direct.to_string(),
);
// Copy direct chat flag
if let Some(direct_event) = services()
.account_data
.get(None, user_id, event_kind.clone())?
.map(|event| {
serde_json::from_str::<DirectEvent>(event.get())
.map_err(|error| {
warn!(
%error,
%event_kind,
"Invalid account data event",
);
Error::BadDatabase(
"Invalid account data event.",
)
})
})
{
let mut direct_event = direct_event?;
let mut room_ids_updated = false;
for room_ids in direct_event.content.0.values_mut()
{
if room_ids
.iter()
.any(|r| r == &predecessor.room_id)
{
room_ids.push(room_id.to_owned());
room_ids_updated = true;
}
}
if room_ids_updated {
services().account_data.update(
None,
user_id,
GlobalAccountDataEventType::Direct
.to_string()
.into(),
&serde_json::to_value(&direct_event)
.expect("to json always works"),
)?;
}
};
}
}
self.db.mark_as_joined(user_id, room_id)?;
}
MembershipState::Invite => {
let event_kind = RoomAccountDataEventType::from(
GlobalAccountDataEventType::IgnoredUserList.to_string(),
);
// We want to know if the sender is ignored by the receiver
let is_ignored = services()
.account_data
.get(
// Ignored users are in global account data
None,
// Receiver
user_id,
event_kind.clone(),
)?
.map(|event| {
serde_json::from_str::<IgnoredUserListEvent>(
event.get(),
)
.map_err(|error| {
warn!(
%error,
%event_kind,
"Invalid account data event",
);
Error::BadDatabase("Invalid account data event.")
})
})
.transpose()?
.map_or(false, |ignored| {
ignored
.content
.ignored_users
.iter()
.any(|(user, _details)| user == sender)
});
if is_ignored {
return Ok(());
}
self.db.mark_as_invited(user_id, room_id, last_state)?;
}
MembershipState::Leave | MembershipState::Ban => {
self.db.mark_as_left(user_id, room_id)?;
}
_ => {}
}
if update_joined_count {
self.update_joined_count(room_id)?;
}
Ok(())
}
#[tracing::instrument(skip(self, room_id))]
pub(crate) fn update_joined_count(&self, room_id: &RoomId) -> Result<()> {
self.db.update_joined_count(room_id)
}
#[tracing::instrument(skip(self, room_id))]
pub(crate) fn get_our_real_users(
&self,
room_id: &RoomId,
) -> Result<Arc<HashSet<OwnedUserId>>> {
self.db.get_our_real_users(room_id)
}
#[tracing::instrument(skip(self, room_id, appservice))]
pub(crate) fn appservice_in_room(
&self,
room_id: &RoomId,
appservice: &RegistrationInfo,
) -> Result<bool> {
self.db.appservice_in_room(room_id, appservice)
}
/// Makes a user forget a room.
#[tracing::instrument(skip(self))]
pub(crate) fn forget(
&self,
room_id: &RoomId,
user_id: &UserId,
) -> Result<()> {
self.db.forget(room_id, user_id)
}
/// Returns an iterator of all servers participating in this room.
#[tracing::instrument(skip(self))]
pub(crate) fn room_servers<'a>(
&'a self,
room_id: &RoomId,
) -> impl Iterator<Item = Result<OwnedServerName>> + 'a {
self.db.room_servers(room_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn server_in_room(
&self,
server: &ServerName,
room_id: &RoomId,
) -> Result<bool> {
self.db.server_in_room(server, room_id)
}
/// Returns an iterator of all rooms a server participates in (as far as we
/// know).
#[tracing::instrument(skip(self))]
pub(crate) fn server_rooms<'a>(
&'a self,
server: &ServerName,
) -> impl Iterator<Item = Result<OwnedRoomId>> + 'a {
self.db.server_rooms(server)
}
/// Returns an iterator over all joined members of a room.
#[tracing::instrument(skip(self))]
pub(crate) fn room_members<'a>(
&'a self,
room_id: &RoomId,
) -> impl Iterator<Item = Result<OwnedUserId>> + 'a {
self.db.room_members(room_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn room_joined_count(
&self,
room_id: &RoomId,
) -> Result<Option<u64>> {
self.db.room_joined_count(room_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn room_invited_count(
&self,
room_id: &RoomId,
) -> Result<Option<u64>> {
self.db.room_invited_count(room_id)
}
/// Returns an iterator over all invited members of a room.
#[tracing::instrument(skip(self))]
pub(crate) fn room_members_invited<'a>(
&'a self,
room_id: &RoomId,
) -> impl Iterator<Item = Result<OwnedUserId>> + 'a {
self.db.room_members_invited(room_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn get_invite_count(
&self,
room_id: &RoomId,
user_id: &UserId,
) -> Result<Option<u64>> {
self.db.get_invite_count(room_id, user_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn get_left_count(
&self,
room_id: &RoomId,
user_id: &UserId,
) -> Result<Option<u64>> {
self.db.get_left_count(room_id, user_id)
}
/// Returns an iterator over all rooms this user joined.
#[tracing::instrument(skip(self))]
pub(crate) fn rooms_joined<'a>(
&'a self,
user_id: &UserId,
) -> impl Iterator<Item = Result<OwnedRoomId>> + 'a {
self.db.rooms_joined(user_id)
}
/// Returns an iterator over all rooms a user was invited to.
#[tracing::instrument(skip(self))]
pub(crate) fn rooms_invited<'a>(
&'a self,
user_id: &UserId,
) -> impl Iterator<
Item = Result<(OwnedRoomId, Vec<Raw<AnyStrippedStateEvent>>)>,
> + 'a {
self.db.rooms_invited(user_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn invite_state(
&self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<Option<Vec<Raw<AnyStrippedStateEvent>>>> {
self.db.invite_state(user_id, room_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn left_state(
&self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<Option<Vec<Raw<AnyStrippedStateEvent>>>> {
self.db.left_state(user_id, room_id)
}
/// Returns an iterator over all rooms a user left.
#[tracing::instrument(skip(self))]
pub(crate) fn rooms_left<'a>(
&'a self,
user_id: &UserId,
) -> impl Iterator<Item = Result<RoomsLeft>> + 'a {
self.db.rooms_left(user_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn once_joined(
&self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<bool> {
self.db.once_joined(user_id, room_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn is_joined(
&self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<bool> {
self.db.is_joined(user_id, room_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn is_invited(
&self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<bool> {
self.db.is_invited(user_id, room_id)
}
#[tracing::instrument(skip(self))]
pub(crate) fn is_left(
&self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<bool> {
self.db.is_left(user_id, room_id)
}
}