198 lines
5.9 KiB
Rust
198 lines
5.9 KiB
Rust
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use std::collections::HashMap;
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use crate::api::r0 as api;
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use crate::events::collections::all::RoomEvent;
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use crate::events::room::member::{MemberEvent, MembershipState};
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use crate::session::Session;
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pub type Token = String;
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pub type RoomId = String;
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pub type UserId = String;
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#[derive(Debug)]
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/// A Matrix room member.
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pub struct RoomMember {
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/// The unique mxid of the user.
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user_id: UserId,
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/// The human readable name of the user.
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display_name: Option<String>,
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/// The matrix url of the users avatar.
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avatar_url: Option<String>,
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/// The users power level.
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power_level: u8,
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}
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#[derive(Debug)]
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/// A Matrix rooom.
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pub struct Room {
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/// The unique id of the room.
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room_id: RoomId,
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/// The mxid of our own user.
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own_user_id: UserId,
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/// The mxid of the room creator.
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creator: Option<UserId>,
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/// The map of room members.
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members: HashMap<UserId, RoomMember>,
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/// A list of users that are currently typing.
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typing_users: Vec<UserId>,
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/// A flag indicating if the room is encrypted.
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encrypted: bool,
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}
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impl Room {
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/// Create a new room.
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/// # Arguments
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///
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/// * `room_id` - The unique id of the room.
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/// * `own_user_id` - The mxid of our own user.
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pub fn new(room_id: &str, own_user_id: &UserId) -> Self {
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Room {
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room_id: room_id.to_string(),
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own_user_id: own_user_id.clone(),
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creator: None,
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members: HashMap::new(),
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typing_users: Vec::new(),
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encrypted: false,
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}
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}
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fn add_member(&mut self, event: &MemberEvent) -> bool {
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if self.members.contains_key(&event.state_key) {
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return false;
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}
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let member = RoomMember {
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user_id: event.state_key.clone(),
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display_name: event.content.displayname.clone(),
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avatar_url: event.content.avatar_url.clone(),
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power_level: 0,
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};
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self.members.insert(event.state_key.clone(), member);
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true
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}
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fn update_joined_member(&mut self, event: &MemberEvent) -> bool {
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if let Some(member) = self.members.get_mut(&event.state_key) {
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member.display_name = event.content.displayname.clone();
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member.avatar_url = event.content.avatar_url.clone();
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}
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false
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}
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fn handle_join(&mut self, event: &MemberEvent) -> bool {
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match &event.prev_content {
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Some(c) => match c.membership {
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MembershipState::Join => self.update_joined_member(event),
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MembershipState::Invite => self.add_member(event),
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MembershipState::Leave => self.add_member(event),
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_ => false,
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},
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None => self.add_member(event),
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}
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}
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fn handle_leave(&mut self, event: &MemberEvent) -> bool {
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false
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}
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fn handle_membership(&mut self, event: &MemberEvent) -> bool {
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match event.content.membership {
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MembershipState::Join => self.handle_join(event),
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MembershipState::Leave => self.handle_leave(event),
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MembershipState::Ban => self.handle_leave(event),
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MembershipState::Invite => false,
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MembershipState::Knock => false,
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}
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}
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/// Receive an event for this room and update the room state.
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/// # Arguments
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///
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/// `event` - The event of the room.
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///
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/// Returns true if the joined member list changed, false otherwise.
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pub fn receive_event(&mut self, event: &RoomEvent) -> bool {
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match event {
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RoomEvent::RoomMember(m) => self.handle_membership(m),
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_ => false,
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}
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}
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}
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#[derive(Debug)]
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/// A no IO Client implementation.
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///
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/// This Client is a state machine that receives responses and events and
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/// accordingly updates it's state.
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pub struct Client {
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/// The current client session containing our user id, device id and access
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/// token.
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pub session: Option<Session>,
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/// The current sync token that should be used for the next sync call.
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pub sync_token: Option<Token>,
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/// A map of the rooms our user is joined in.
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pub joined_rooms: HashMap<RoomId, Room>,
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}
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impl Client {
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/// Create a new client.
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/// # Arguments
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///
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/// `session` - An optional session if the user already has one from a
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/// previous login call.
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pub fn new(session: Option<Session>) -> Self {
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Client {
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session,
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sync_token: None,
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joined_rooms: HashMap::new(),
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}
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}
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/// Is the client logged in.
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pub fn logged_in(&self) -> bool {
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self.session.is_some()
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}
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/// Receive a login response and update the session of the client.
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/// # Arguments
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///
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/// `response` - A successful login response that contains our access token
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/// and device id.
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pub fn receive_login_response(&mut self, response: &api::session::login::Response) {
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let session = Session {
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access_token: response.access_token.clone(),
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device_id: response.device_id.clone(),
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user_id: response.user_id.clone(),
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};
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self.session = Some(session);
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}
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/// Receive a room event for a joined room and update the client state.
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/// # Arguments
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///
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/// `room_id` - The unique id of the room the event belongs to.
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/// `event` - The event that should be handled by the client.
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///
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/// Returns true if the membership list of the room changed, false
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/// otherwise.
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pub fn receive_joined_room_event(&mut self, room_id: &RoomId, event: &RoomEvent) -> bool {
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let room = self
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.joined_rooms
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.entry(room_id.to_string())
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.or_insert(Room::new(
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room_id,
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&self
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.session
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.as_ref()
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.expect("Receiving events while not being logged in")
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.user_id
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.to_string(),
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));
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room.receive_event(event)
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}
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}
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