refactor: event handling code

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Timo Kösters 2022-06-20 11:31:27 +02:00 committed by Nyaaori
parent 1b0477d569
commit dcdbcc0851
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19 changed files with 373 additions and 5298 deletions

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@ -0,0 +1,717 @@
/// Update current membership data.
#[tracing::instrument(skip(self, last_state, db))]
pub fn update_membership(
&self,
room_id: &RoomId,
user_id: &UserId,
membership: MembershipState,
sender: &UserId,
last_state: Option<Vec<Raw<AnyStrippedStateEvent>>>,
db: &Database,
update_joined_count: bool,
) -> Result<()> {
// Keep track what remote users exist by adding them as "deactivated" users
if user_id.server_name() != db.globals.server_name() {
db.users.create(user_id, None)?;
// TODO: displayname, avatar url
}
let mut roomserver_id = room_id.as_bytes().to_vec();
roomserver_id.push(0xff);
roomserver_id.extend_from_slice(user_id.server_name().as_bytes());
let mut serverroom_id = user_id.server_name().as_bytes().to_vec();
serverroom_id.push(0xff);
serverroom_id.extend_from_slice(room_id.as_bytes());
let mut userroom_id = user_id.as_bytes().to_vec();
userroom_id.push(0xff);
userroom_id.extend_from_slice(room_id.as_bytes());
let mut roomuser_id = room_id.as_bytes().to_vec();
roomuser_id.push(0xff);
roomuser_id.extend_from_slice(user_id.as_bytes());
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.roomuseroncejoinedids.insert(&userroom_id, &[])?;
// Check if the room has a predecessor
if let Some(predecessor) = self
.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();
// Copy old tags to new room
if let Some(tag_event) = db.account_data.get::<TagEvent>(
Some(&predecessor.room_id),
user_id,
RoomAccountDataEventType::Tag,
)? {
db.account_data
.update(
Some(room_id),
user_id,
RoomAccountDataEventType::Tag,
&tag_event,
&db.globals,
)
.ok();
};
// Copy direct chat flag
if let Some(mut direct_event) = db.account_data.get::<DirectEvent>(
None,
user_id,
GlobalAccountDataEventType::Direct.to_string().into(),
)? {
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 {
db.account_data.update(
None,
user_id,
GlobalAccountDataEventType::Direct.to_string().into(),
&direct_event,
&db.globals,
)?;
}
};
}
}
if update_joined_count {
self.roomserverids.insert(&roomserver_id, &[])?;
self.serverroomids.insert(&serverroom_id, &[])?;
}
self.userroomid_joined.insert(&userroom_id, &[])?;
self.roomuserid_joined.insert(&roomuser_id, &[])?;
self.userroomid_invitestate.remove(&userroom_id)?;
self.roomuserid_invitecount.remove(&roomuser_id)?;
self.userroomid_leftstate.remove(&userroom_id)?;
self.roomuserid_leftcount.remove(&roomuser_id)?;
}
MembershipState::Invite => {
// We want to know if the sender is ignored by the receiver
let is_ignored = db
.account_data
.get::<IgnoredUserListEvent>(
None, // Ignored users are in global account data
user_id, // Receiver
GlobalAccountDataEventType::IgnoredUserList
.to_string()
.into(),
)?
.map_or(false, |ignored| {
ignored
.content
.ignored_users
.iter()
.any(|user| user == sender)
});
if is_ignored {
return Ok(());
}
if update_joined_count {
self.roomserverids.insert(&roomserver_id, &[])?;
self.serverroomids.insert(&serverroom_id, &[])?;
}
self.userroomid_invitestate.insert(
&userroom_id,
&serde_json::to_vec(&last_state.unwrap_or_default())
.expect("state to bytes always works"),
)?;
self.roomuserid_invitecount
.insert(&roomuser_id, &db.globals.next_count()?.to_be_bytes())?;
self.userroomid_joined.remove(&userroom_id)?;
self.roomuserid_joined.remove(&roomuser_id)?;
self.userroomid_leftstate.remove(&userroom_id)?;
self.roomuserid_leftcount.remove(&roomuser_id)?;
}
MembershipState::Leave | MembershipState::Ban => {
if update_joined_count
&& self
.room_members(room_id)
.chain(self.room_members_invited(room_id))
.filter_map(|r| r.ok())
.all(|u| u.server_name() != user_id.server_name())
{
self.roomserverids.remove(&roomserver_id)?;
self.serverroomids.remove(&serverroom_id)?;
}
self.userroomid_leftstate.insert(
&userroom_id,
&serde_json::to_vec(&Vec::<Raw<AnySyncStateEvent>>::new()).unwrap(),
)?; // TODO
self.roomuserid_leftcount
.insert(&roomuser_id, &db.globals.next_count()?.to_be_bytes())?;
self.userroomid_joined.remove(&userroom_id)?;
self.roomuserid_joined.remove(&roomuser_id)?;
self.userroomid_invitestate.remove(&userroom_id)?;
self.roomuserid_invitecount.remove(&roomuser_id)?;
}
_ => {}
}
if update_joined_count {
self.update_joined_count(room_id, db)?;
}
Ok(())
}
#[tracing::instrument(skip(self, room_id, db))]
pub fn update_joined_count(&self, room_id: &RoomId, db: &Database) -> Result<()> {
let mut joinedcount = 0_u64;
let mut invitedcount = 0_u64;
let mut joined_servers = HashSet::new();
let mut real_users = HashSet::new();
for joined in self.room_members(room_id).filter_map(|r| r.ok()) {
joined_servers.insert(joined.server_name().to_owned());
if joined.server_name() == db.globals.server_name()
&& !db.users.is_deactivated(&joined).unwrap_or(true)
{
real_users.insert(joined);
}
joinedcount += 1;
}
for invited in self.room_members_invited(room_id).filter_map(|r| r.ok()) {
joined_servers.insert(invited.server_name().to_owned());
invitedcount += 1;
}
self.roomid_joinedcount
.insert(room_id.as_bytes(), &joinedcount.to_be_bytes())?;
self.roomid_invitedcount
.insert(room_id.as_bytes(), &invitedcount.to_be_bytes())?;
self.our_real_users_cache
.write()
.unwrap()
.insert(room_id.to_owned(), Arc::new(real_users));
for old_joined_server in self.room_servers(room_id).filter_map(|r| r.ok()) {
if !joined_servers.remove(&old_joined_server) {
// Server not in room anymore
let mut roomserver_id = room_id.as_bytes().to_vec();
roomserver_id.push(0xff);
roomserver_id.extend_from_slice(old_joined_server.as_bytes());
let mut serverroom_id = old_joined_server.as_bytes().to_vec();
serverroom_id.push(0xff);
serverroom_id.extend_from_slice(room_id.as_bytes());
self.roomserverids.remove(&roomserver_id)?;
self.serverroomids.remove(&serverroom_id)?;
}
}
// Now only new servers are in joined_servers anymore
for server in joined_servers {
let mut roomserver_id = room_id.as_bytes().to_vec();
roomserver_id.push(0xff);
roomserver_id.extend_from_slice(server.as_bytes());
let mut serverroom_id = server.as_bytes().to_vec();
serverroom_id.push(0xff);
serverroom_id.extend_from_slice(room_id.as_bytes());
self.roomserverids.insert(&roomserver_id, &[])?;
self.serverroomids.insert(&serverroom_id, &[])?;
}
self.appservice_in_room_cache
.write()
.unwrap()
.remove(room_id);
Ok(())
}
#[tracing::instrument(skip(self, room_id, db))]
pub fn get_our_real_users(
&self,
room_id: &RoomId,
db: &Database,
) -> Result<Arc<HashSet<Box<UserId>>>> {
let maybe = self
.our_real_users_cache
.read()
.unwrap()
.get(room_id)
.cloned();
if let Some(users) = maybe {
Ok(users)
} else {
self.update_joined_count(room_id, db)?;
Ok(Arc::clone(
self.our_real_users_cache
.read()
.unwrap()
.get(room_id)
.unwrap(),
))
}
}
#[tracing::instrument(skip(self, room_id, appservice, db))]
pub fn appservice_in_room(
&self,
room_id: &RoomId,
appservice: &(String, serde_yaml::Value),
db: &Database,
) -> Result<bool> {
let maybe = self
.appservice_in_room_cache
.read()
.unwrap()
.get(room_id)
.and_then(|map| map.get(&appservice.0))
.copied();
if let Some(b) = maybe {
Ok(b)
} else if let Some(namespaces) = appservice.1.get("namespaces") {
let users = namespaces
.get("users")
.and_then(|users| users.as_sequence())
.map_or_else(Vec::new, |users| {
users
.iter()
.filter_map(|users| Regex::new(users.get("regex")?.as_str()?).ok())
.collect::<Vec<_>>()
});
let bridge_user_id = appservice
.1
.get("sender_localpart")
.and_then(|string| string.as_str())
.and_then(|string| {
UserId::parse_with_server_name(string, db.globals.server_name()).ok()
});
let in_room = bridge_user_id
.map_or(false, |id| self.is_joined(&id, room_id).unwrap_or(false))
|| self.room_members(room_id).any(|userid| {
userid.map_or(false, |userid| {
users.iter().any(|r| r.is_match(userid.as_str()))
})
});
self.appservice_in_room_cache
.write()
.unwrap()
.entry(room_id.to_owned())
.or_default()
.insert(appservice.0.clone(), in_room);
Ok(in_room)
} else {
Ok(false)
}
}
/// Makes a user forget a room.
#[tracing::instrument(skip(self))]
pub fn forget(&self, room_id: &RoomId, user_id: &UserId) -> Result<()> {
let mut userroom_id = user_id.as_bytes().to_vec();
userroom_id.push(0xff);
userroom_id.extend_from_slice(room_id.as_bytes());
let mut roomuser_id = room_id.as_bytes().to_vec();
roomuser_id.push(0xff);
roomuser_id.extend_from_slice(user_id.as_bytes());
self.userroomid_leftstate.remove(&userroom_id)?;
self.roomuserid_leftcount.remove(&roomuser_id)?;
Ok(())
}
/// Returns an iterator of all servers participating in this room.
#[tracing::instrument(skip(self))]
pub fn room_servers<'a>(
&'a self,
room_id: &RoomId,
) -> impl Iterator<Item = Result<Box<ServerName>>> + 'a {
let mut prefix = room_id.as_bytes().to_vec();
prefix.push(0xff);
self.roomserverids.scan_prefix(prefix).map(|(key, _)| {
ServerName::parse(
utils::string_from_bytes(
key.rsplit(|&b| b == 0xff)
.next()
.expect("rsplit always returns an element"),
)
.map_err(|_| {
Error::bad_database("Server name in roomserverids is invalid unicode.")
})?,
)
.map_err(|_| Error::bad_database("Server name in roomserverids is invalid."))
})
}
#[tracing::instrument(skip(self))]
pub fn server_in_room<'a>(&'a self, server: &ServerName, room_id: &RoomId) -> Result<bool> {
let mut key = server.as_bytes().to_vec();
key.push(0xff);
key.extend_from_slice(room_id.as_bytes());
self.serverroomids.get(&key).map(|o| o.is_some())
}
/// Returns an iterator of all rooms a server participates in (as far as we know).
#[tracing::instrument(skip(self))]
pub fn server_rooms<'a>(
&'a self,
server: &ServerName,
) -> impl Iterator<Item = Result<Box<RoomId>>> + 'a {
let mut prefix = server.as_bytes().to_vec();
prefix.push(0xff);
self.serverroomids.scan_prefix(prefix).map(|(key, _)| {
RoomId::parse(
utils::string_from_bytes(
key.rsplit(|&b| b == 0xff)
.next()
.expect("rsplit always returns an element"),
)
.map_err(|_| Error::bad_database("RoomId in serverroomids is invalid unicode."))?,
)
.map_err(|_| Error::bad_database("RoomId in serverroomids is invalid."))
})
}
/// Returns an iterator over all joined members of a room.
#[tracing::instrument(skip(self))]
pub fn room_members<'a>(
&'a self,
room_id: &RoomId,
) -> impl Iterator<Item = Result<Box<UserId>>> + 'a {
let mut prefix = room_id.as_bytes().to_vec();
prefix.push(0xff);
self.roomuserid_joined.scan_prefix(prefix).map(|(key, _)| {
UserId::parse(
utils::string_from_bytes(
key.rsplit(|&b| b == 0xff)
.next()
.expect("rsplit always returns an element"),
)
.map_err(|_| {
Error::bad_database("User ID in roomuserid_joined is invalid unicode.")
})?,
)
.map_err(|_| Error::bad_database("User ID in roomuserid_joined is invalid."))
})
}
#[tracing::instrument(skip(self))]
pub fn room_joined_count(&self, room_id: &RoomId) -> Result<Option<u64>> {
self.roomid_joinedcount
.get(room_id.as_bytes())?
.map(|b| {
utils::u64_from_bytes(&b)
.map_err(|_| Error::bad_database("Invalid joinedcount in db."))
})
.transpose()
}
#[tracing::instrument(skip(self))]
pub fn room_invited_count(&self, room_id: &RoomId) -> Result<Option<u64>> {
self.roomid_invitedcount
.get(room_id.as_bytes())?
.map(|b| {
utils::u64_from_bytes(&b)
.map_err(|_| Error::bad_database("Invalid joinedcount in db."))
})
.transpose()
}
/// Returns an iterator over all User IDs who ever joined a room.
#[tracing::instrument(skip(self))]
pub fn room_useroncejoined<'a>(
&'a self,
room_id: &RoomId,
) -> impl Iterator<Item = Result<Box<UserId>>> + 'a {
let mut prefix = room_id.as_bytes().to_vec();
prefix.push(0xff);
self.roomuseroncejoinedids
.scan_prefix(prefix)
.map(|(key, _)| {
UserId::parse(
utils::string_from_bytes(
key.rsplit(|&b| b == 0xff)
.next()
.expect("rsplit always returns an element"),
)
.map_err(|_| {
Error::bad_database("User ID in room_useroncejoined is invalid unicode.")
})?,
)
.map_err(|_| Error::bad_database("User ID in room_useroncejoined is invalid."))
})
}
/// Returns an iterator over all invited members of a room.
#[tracing::instrument(skip(self))]
pub fn room_members_invited<'a>(
&'a self,
room_id: &RoomId,
) -> impl Iterator<Item = Result<Box<UserId>>> + 'a {
let mut prefix = room_id.as_bytes().to_vec();
prefix.push(0xff);
self.roomuserid_invitecount
.scan_prefix(prefix)
.map(|(key, _)| {
UserId::parse(
utils::string_from_bytes(
key.rsplit(|&b| b == 0xff)
.next()
.expect("rsplit always returns an element"),
)
.map_err(|_| {
Error::bad_database("User ID in roomuserid_invited is invalid unicode.")
})?,
)
.map_err(|_| Error::bad_database("User ID in roomuserid_invited is invalid."))
})
}
#[tracing::instrument(skip(self))]
pub fn get_invite_count(&self, room_id: &RoomId, user_id: &UserId) -> Result<Option<u64>> {
let mut key = room_id.as_bytes().to_vec();
key.push(0xff);
key.extend_from_slice(user_id.as_bytes());
self.roomuserid_invitecount
.get(&key)?
.map_or(Ok(None), |bytes| {
Ok(Some(utils::u64_from_bytes(&bytes).map_err(|_| {
Error::bad_database("Invalid invitecount in db.")
})?))
})
}
#[tracing::instrument(skip(self))]
pub fn get_left_count(&self, room_id: &RoomId, user_id: &UserId) -> Result<Option<u64>> {
let mut key = room_id.as_bytes().to_vec();
key.push(0xff);
key.extend_from_slice(user_id.as_bytes());
self.roomuserid_leftcount
.get(&key)?
.map(|bytes| {
utils::u64_from_bytes(&bytes)
.map_err(|_| Error::bad_database("Invalid leftcount in db."))
})
.transpose()
}
/// Returns an iterator over all rooms this user joined.
#[tracing::instrument(skip(self))]
pub fn rooms_joined<'a>(
&'a self,
user_id: &UserId,
) -> impl Iterator<Item = Result<Box<RoomId>>> + 'a {
self.userroomid_joined
.scan_prefix(user_id.as_bytes().to_vec())
.map(|(key, _)| {
RoomId::parse(
utils::string_from_bytes(
key.rsplit(|&b| b == 0xff)
.next()
.expect("rsplit always returns an element"),
)
.map_err(|_| {
Error::bad_database("Room ID in userroomid_joined is invalid unicode.")
})?,
)
.map_err(|_| Error::bad_database("Room ID in userroomid_joined is invalid."))
})
}
/// Returns an iterator over all rooms a user was invited to.
#[tracing::instrument(skip(self))]
pub fn rooms_invited<'a>(
&'a self,
user_id: &UserId,
) -> impl Iterator<Item = Result<(Box<RoomId>, Vec<Raw<AnyStrippedStateEvent>>)>> + 'a {
let mut prefix = user_id.as_bytes().to_vec();
prefix.push(0xff);
self.userroomid_invitestate
.scan_prefix(prefix)
.map(|(key, state)| {
let room_id = RoomId::parse(
utils::string_from_bytes(
key.rsplit(|&b| b == 0xff)
.next()
.expect("rsplit always returns an element"),
)
.map_err(|_| {
Error::bad_database("Room ID in userroomid_invited is invalid unicode.")
})?,
)
.map_err(|_| Error::bad_database("Room ID in userroomid_invited is invalid."))?;
let state = serde_json::from_slice(&state)
.map_err(|_| Error::bad_database("Invalid state in userroomid_invitestate."))?;
Ok((room_id, state))
})
}
#[tracing::instrument(skip(self))]
pub fn invite_state(
&self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<Option<Vec<Raw<AnyStrippedStateEvent>>>> {
let mut key = user_id.as_bytes().to_vec();
key.push(0xff);
key.extend_from_slice(room_id.as_bytes());
self.userroomid_invitestate
.get(&key)?
.map(|state| {
let state = serde_json::from_slice(&state)
.map_err(|_| Error::bad_database("Invalid state in userroomid_invitestate."))?;
Ok(state)
})
.transpose()
}
#[tracing::instrument(skip(self))]
pub fn left_state(
&self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<Option<Vec<Raw<AnyStrippedStateEvent>>>> {
let mut key = user_id.as_bytes().to_vec();
key.push(0xff);
key.extend_from_slice(room_id.as_bytes());
self.userroomid_leftstate
.get(&key)?
.map(|state| {
let state = serde_json::from_slice(&state)
.map_err(|_| Error::bad_database("Invalid state in userroomid_leftstate."))?;
Ok(state)
})
.transpose()
}
/// Returns an iterator over all rooms a user left.
#[tracing::instrument(skip(self))]
pub fn rooms_left<'a>(
&'a self,
user_id: &UserId,
) -> impl Iterator<Item = Result<(Box<RoomId>, Vec<Raw<AnySyncStateEvent>>)>> + 'a {
let mut prefix = user_id.as_bytes().to_vec();
prefix.push(0xff);
self.userroomid_leftstate
.scan_prefix(prefix)
.map(|(key, state)| {
let room_id = RoomId::parse(
utils::string_from_bytes(
key.rsplit(|&b| b == 0xff)
.next()
.expect("rsplit always returns an element"),
)
.map_err(|_| {
Error::bad_database("Room ID in userroomid_invited is invalid unicode.")
})?,
)
.map_err(|_| Error::bad_database("Room ID in userroomid_invited is invalid."))?;
let state = serde_json::from_slice(&state)
.map_err(|_| Error::bad_database("Invalid state in userroomid_leftstate."))?;
Ok((room_id, state))
})
}
#[tracing::instrument(skip(self))]
pub fn once_joined(&self, user_id: &UserId, room_id: &RoomId) -> Result<bool> {
let mut userroom_id = user_id.as_bytes().to_vec();
userroom_id.push(0xff);
userroom_id.extend_from_slice(room_id.as_bytes());
Ok(self.roomuseroncejoinedids.get(&userroom_id)?.is_some())
}
#[tracing::instrument(skip(self))]
pub fn is_joined(&self, user_id: &UserId, room_id: &RoomId) -> Result<bool> {
let mut userroom_id = user_id.as_bytes().to_vec();
userroom_id.push(0xff);
userroom_id.extend_from_slice(room_id.as_bytes());
Ok(self.userroomid_joined.get(&userroom_id)?.is_some())
}
#[tracing::instrument(skip(self))]
pub fn is_invited(&self, user_id: &UserId, room_id: &RoomId) -> Result<bool> {
let mut userroom_id = user_id.as_bytes().to_vec();
userroom_id.push(0xff);
userroom_id.extend_from_slice(room_id.as_bytes());
Ok(self.userroomid_invitestate.get(&userroom_id)?.is_some())
}
#[tracing::instrument(skip(self))]
pub fn is_left(&self, user_id: &UserId, room_id: &RoomId) -> Result<bool> {
let mut userroom_id = user_id.as_bytes().to_vec();
userroom_id.push(0xff);
userroom_id.extend_from_slice(room_id.as_bytes());
Ok(self.userroomid_leftstate.get(&userroom_id)?.is_some())
}