matrix-rust-sdk/src/models/room.rs

362 lines
12 KiB
Rust

// Copyright 2020 Damir Jelić
// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use std::collections::HashMap;
use super::{RoomMember, UserId};
use crate::events::collections::all::{RoomEvent, StateEvent};
use crate::events::presence::PresenceEvent;
use crate::events::room::{
aliases::AliasesEvent,
canonical_alias::CanonicalAliasEvent,
encryption::EncryptionEvent,
member::{MemberEvent, MembershipChange},
name::NameEvent,
power_levels::PowerLevelsEvent,
};
use crate::identifiers::RoomAliasId;
use js_int::UInt;
#[cfg(feature = "encryption")]
use tokio::sync::Mutex;
#[cfg(feature = "encryption")]
use crate::crypto::{OlmMachine, OneTimeKeys};
#[cfg(feature = "encryption")]
use ruma_client_api::r0::keys::{upload_keys::Response as KeysUploadResponse, DeviceKeys};
#[derive(Debug, Default)]
/// `RoomName` allows the calculation of a text room name.
pub struct RoomName {
/// The displayed name of the room.
name: Option<String>,
/// The canonical alias of the room ex. `#room-name:example.com` and port number.
canonical_alias: Option<RoomAliasId>,
/// List of `RoomAliasId`s the room has been given.
aliases: Vec<RoomAliasId>,
}
#[derive(Debug)]
/// A Matrix rooom.
pub struct Room {
/// The unique id of the room.
pub room_id: String,
/// The name of the room, clients use this to represent a room.
pub room_name: RoomName,
/// The mxid of our own user.
pub own_user_id: UserId,
/// The mxid of the room creator.
pub creator: Option<UserId>,
/// The map of room members.
pub members: HashMap<UserId, RoomMember>,
/// A list of users that are currently typing.
pub typing_users: Vec<UserId>,
// TODO when encryption events are handled we store algorithm used and rotation time.
/// A flag indicating if the room is encrypted.
pub encrypted: bool,
/// Number of unread notifications with highlight flag set.
pub unread_highlight: Option<UInt>,
/// Number of unread notifications.
pub unread_notifications: Option<UInt>,
}
impl RoomName {
pub fn push_alias(&mut self, alias: RoomAliasId) -> bool {
self.aliases.push(alias);
true
}
pub fn set_canonical(&mut self, alias: RoomAliasId) -> bool {
self.canonical_alias = Some(alias);
true
}
pub fn set_name(&mut self, name: &str) -> bool {
self.name = Some(name.to_string());
true
}
pub fn calculate_name(&self, room_id: &str, members: &HashMap<UserId, RoomMember>) -> String {
// https://matrix.org/docs/spec/client_server/latest#calculating-the-display-name-for-a-room.
// the order in which we check for a name ^^
if let Some(name) = &self.name {
name.clone()
} else if let Some(alias) = &self.canonical_alias {
alias.alias().to_string()
} else if !self.aliases.is_empty() {
self.aliases[0].alias().to_string()
} else {
let mut names = members
.values()
.flat_map(|m| m.user.display_name.clone())
.take(3)
.collect::<Vec<_>>();
if names.is_empty() {
// TODO implement the rest of display name for room spec
format!("Room {}", room_id)
} else {
// stabilize order
names.sort();
names.join(", ")
}
}
}
}
impl Room {
/// Create a new room.
///
/// # Arguments
///
/// * `room_id` - The unique id of the room.
///
/// * `own_user_id` - The mxid of our own user.
pub fn new(room_id: &str, own_user_id: &str) -> Self {
Room {
room_id: room_id.to_string(),
room_name: RoomName::default(),
own_user_id: own_user_id.to_owned(),
creator: None,
members: HashMap::new(),
typing_users: Vec::new(),
encrypted: false,
unread_highlight: None,
unread_notifications: None,
}
}
/// Return the display name of the room.
pub fn calculate_name(&self) -> String {
self.room_name.calculate_name(&self.room_id, &self.members)
}
/// Is the room a encrypted room.
pub fn is_encrypted(&self) -> bool {
self.encrypted
}
fn add_member(&mut self, event: &MemberEvent) -> bool {
if self.members.contains_key(&event.state_key) {
return false;
}
let member = RoomMember::new(event);
self.members.insert(event.state_key.clone(), member);
true
}
/// Add to the list of `RoomAliasId`s.
fn room_aliases(&mut self, alias: &RoomAliasId) -> bool {
self.room_name.push_alias(alias.clone());
true
}
/// RoomAliasId is `#alias:hostname` and `port`
fn canonical_alias(&mut self, alias: &RoomAliasId) -> bool {
self.room_name.set_canonical(alias.clone());
true
}
fn name_room(&mut self, name: &str) -> bool {
self.room_name.set_name(name);
true
}
/// Handle a room.member updating the room state if necessary.
///
/// Returns true if the joined member list changed, false otherwise.
pub fn handle_membership(&mut self, event: &MemberEvent) -> bool {
match event.membership_change() {
MembershipChange::Invited | MembershipChange::Joined => self.add_member(event),
_ => {
if let Some(member) = self.members.get_mut(&event.state_key) {
member.update_member(event)
} else {
false
}
}
}
}
/// Handle a room.aliases event, updating the room state if necessary.
///
/// Returns true if the room name changed, false otherwise.
pub fn handle_room_aliases(&mut self, event: &AliasesEvent) -> bool {
match event.content.aliases.as_slice() {
[alias] => self.room_aliases(alias),
[alias, ..] => self.room_aliases(alias),
_ => false,
}
}
/// Handle a room.canonical_alias event, updating the room state if necessary.
///
/// Returns true if the room name changed, false otherwise.
pub fn handle_canonical(&mut self, event: &CanonicalAliasEvent) -> bool {
match &event.content.alias {
Some(name) => self.canonical_alias(&name),
_ => false,
}
}
/// Handle a room.name event, updating the room state if necessary.
///
/// Returns true if the room name changed, false otherwise.
pub fn handle_room_name(&mut self, event: &NameEvent) -> bool {
match event.content.name() {
Some(name) => self.name_room(name),
_ => false,
}
}
/// Handle a room.power_levels event, updating the room state if necessary.
///
/// Returns true if the room name changed, false otherwise.
pub fn handle_power_level(&mut self, event: &PowerLevelsEvent) -> bool {
if let Some(member) = self.members.get_mut(&event.state_key) {
member.update_power(event)
} else {
false
}
}
fn handle_encryption_event(&mut self, _event: &EncryptionEvent) -> bool {
self.encrypted = true;
true
}
/// Receive a timeline event for this room and update the room state.
///
/// Returns true if the joined member list changed, false otherwise.
///
/// # Arguments
///
/// * `event` - The event of the room.
pub fn receive_timeline_event(&mut self, event: &RoomEvent) -> bool {
match event {
// update to the current members of the room
RoomEvent::RoomMember(m) => self.handle_membership(m),
// finds all events related to the name of the room for later calculation
RoomEvent::RoomName(n) => self.handle_room_name(n),
RoomEvent::RoomCanonicalAlias(ca) => self.handle_canonical(ca),
RoomEvent::RoomAliases(a) => self.handle_room_aliases(a),
// power levels of the room members
RoomEvent::RoomPowerLevels(p) => self.handle_power_level(p),
RoomEvent::RoomEncryption(e) => self.handle_encryption_event(e),
_ => false,
}
}
/// Receive a state event for this room and update the room state.
///
/// Returns true if the joined member list changed, false otherwise.
///
/// # Arguments
///
/// * `event` - The event of the room.
pub fn receive_state_event(&mut self, event: &StateEvent) -> bool {
match event {
StateEvent::RoomMember(m) => self.handle_membership(m),
StateEvent::RoomName(n) => self.handle_room_name(n),
StateEvent::RoomCanonicalAlias(ca) => self.handle_canonical(ca),
StateEvent::RoomAliases(a) => self.handle_room_aliases(a),
StateEvent::RoomEncryption(e) => self.handle_encryption_event(e),
_ => false,
}
}
/// Receive a presence event from an `IncomingResponse` and updates the client state.
///
/// This will only update the user if found in the current room looped through by `AsyncClient::sync`.
/// Returns true if the specific users presence has changed, false otherwise.
///
/// # Arguments
///
/// * `event` - The presence event for a specified room member.
pub fn receive_presence_event(&mut self, event: &PresenceEvent) -> bool {
if let Some(user) = self
.members
.get_mut(&event.sender.to_string())
.map(|m| &mut m.user)
{
if user.did_update_presence(event) {
false
} else {
user.update_presence(event);
true
}
} else {
// this is probably an error as we have a `PresenceEvent` for a user
// we don't know about
false
}
}
}
#[cfg(test)]
mod test {
use crate::events::room::member::MembershipState;
use crate::identifiers::UserId;
use crate::{AsyncClient, Session, SyncSettings};
use mockito::{mock, Matcher};
use url::Url;
use std::convert::TryFrom;
use std::str::FromStr;
use std::time::Duration;
#[tokio::test]
async fn user_presence() {
let homeserver = Url::from_str(&mockito::server_url()).unwrap();
let session = Session {
access_token: "1234".to_owned(),
user_id: UserId::try_from("@example:localhost").unwrap(),
device_id: "DEVICEID".to_owned(),
};
let _m = mock(
"GET",
Matcher::Regex(r"^/_matrix/client/r0/sync\?.*$".to_string()),
)
.with_status(200)
.with_body_from_file("tests/data/sync.json")
.create();
let mut client = AsyncClient::new(homeserver, Some(session)).unwrap();
let sync_settings = SyncSettings::new().timeout(Duration::from_millis(3000));
let _response = client.sync(sync_settings).await.unwrap();
let rooms = &client.base_client.read().await.joined_rooms;
let room = &rooms
.get("!SVkFJHzfwvuaIEawgC:localhost")
.unwrap()
.lock()
.await;
assert_eq!(2, room.members.len());
for (_id, member) in &room.members {
assert_eq!(MembershipState::Join, member.membership);
}
}
}