nio: Add initial base client state machine.

examples/login.rs

@@ -1,3 +1,5 @@
+#![feature(async_closure)]
+
 use std::{env, process::exit};
 
 use matrix_nio::{
@@ -5,6 +7,7 @@ use matrix_nio::{
     events::{
         collections::all::RoomEvent,
         room::message::{MessageEvent, MessageEventContent, TextMessageEventContent},
+        EventType,
     },
     AsyncClient, AsyncClientConfig, SyncSettings,
 };
@@ -19,13 +22,19 @@ async fn login(
         .disable_ssl_verification();
     let mut client = AsyncClient::new_with_config(&homeserver_url, None, client_config).unwrap();
 
-    client.login(username, password, None).await?;
+    let callback = |event| {
-    let response = client.sync(SyncSettings::new()).await?;
+        if let RoomEvent::RoomMessage(MessageEvent {
+            content: MessageEventContent::Text(TextMessageEventContent { body: msg_body, .. }),
+            sender,
+            ..
+        }) = event
+        {
+            println!("{}: {}", sender, msg_body);
+        }
+    };
 
-    for (room_id, room) in response.rooms.join {
+    client.add_event_future(EventType::RoomMessage, |event| {
-        println!("Room {}", room_id);
+        Box::pin(async {
-
-        for event in room.timeline.events {
             if let RoomEvent::RoomMessage(MessageEvent {
                 content: MessageEventContent::Text(TextMessageEventContent { body: msg_body, .. }),
                 sender,
@@ -34,8 +43,11 @@ async fn login(
             {
                 println!("{}: {}", sender, msg_body);
             }
-        }
+        })
-    }
+    });
+
+    client.login(username, password, None).await?;
+    let response = client.sync(SyncSettings::new()).await?;
 
     Ok(())
 }

src/async_client.rs

@@ -0,0 +1,295 @@
+use std::collections::HashMap;
+use std::convert::{TryFrom, TryInto};
+use std::future::Future;
+use std::pin::Pin;
+
+use http::Method as HttpMethod;
+use http::Response as HttpResponse;
+use js_int::UInt;
+use reqwest;
+use url::Url;
+
+use ruma_api::Endpoint;
+use ruma_events::collections::all::RoomEvent;
+use ruma_events::Event;
+pub use ruma_events::EventType;
+
+use crate::api;
+use crate::base_client::Client as BaseClient;
+use crate::error::{Error, InnerError};
+use crate::session::Session;
+
+pub struct AsyncClient {
+    /// The URL of the homeserver to connect to.
+    homeserver: Url,
+    /// The underlying HTTP client.
+    http_client: reqwest::Client,
+    /// User session data.
+    base_client: BaseClient,
+    /// Event callbacks
+    event_callbacks: HashMap<EventType, Box<dyn FnMut(RoomEvent)>>,
+    event_futures:
+        HashMap<EventType, Box<dyn FnMut(RoomEvent) -> Pin<Box<dyn Future<Output = ()>>>>>,
+}
+
+#[derive(Default, Debug)]
+pub struct AsyncClientConfig {
+    proxy: Option<reqwest::Proxy>,
+    use_sys_proxy: bool,
+    user_agent: Option<String>,
+    disable_ssl_verification: bool,
+}
+
+impl AsyncClientConfig {
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    pub fn proxy(mut self, proxy: &str) -> Result<Self, Error> {
+        if self.use_sys_proxy {
+            return Err(Error(InnerError::ConfigurationError(
+                "Using the system proxy has been previously configured.".to_string(),
+            )));
+        }
+        self.proxy = Some(reqwest::Proxy::all(proxy)?);
+        Ok(self)
+    }
+
+    pub fn use_sys_proxy(mut self) -> Result<Self, Error> {
+        if self.proxy.is_some() {
+            return Err(Error(InnerError::ConfigurationError(
+                "A proxy has already been configured.".to_string(),
+            )));
+        }
+        self.use_sys_proxy = true;
+        Ok(self)
+    }
+
+    pub fn disable_ssl_verification(mut self) -> Self {
+        self.disable_ssl_verification = true;
+        self
+    }
+}
+
+#[derive(Debug, Default)]
+pub struct SyncSettings {
+    pub(crate) timeout: Option<UInt>,
+    pub(crate) token: Option<String>,
+    pub(crate) full_state: Option<bool>,
+}
+
+impl SyncSettings {
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    pub fn token<S: Into<String>>(mut self, token: S) -> Self {
+        self.token = Some(token.into());
+        self
+    }
+
+    pub fn timeout<T: TryInto<UInt>>(mut self, timeout: T) -> Result<Self, js_int::TryFromIntError>
+    where
+        js_int::TryFromIntError:
+            std::convert::From<<T as std::convert::TryInto<js_int::UInt>>::Error>,
+    {
+        self.timeout = Some(timeout.try_into()?);
+        Ok(self)
+    }
+
+    pub fn full_state(mut self, full_state: bool) -> Self {
+        self.full_state = Some(full_state);
+        self
+    }
+}
+
+use api::r0::session::login;
+use api::r0::sync::sync_events;
+
+impl AsyncClient {
+    /// Creates a new client for making HTTP requests to the given homeserver.
+    pub fn new(homeserver_url: &str, session: Option<Session>) -> Result<Self, url::ParseError> {
+        let homeserver = Url::parse(homeserver_url)?;
+        let http_client = reqwest::Client::new();
+
+        Ok(Self {
+            homeserver,
+            http_client,
+            base_client: BaseClient::new(session),
+            event_callbacks: HashMap::new(),
+            event_futures: HashMap::new(),
+        })
+    }
+
+    pub fn new_with_config(
+        homeserver_url: &str,
+        session: Option<Session>,
+        config: AsyncClientConfig,
+    ) -> Result<Self, url::ParseError> {
+        let homeserver = Url::parse(homeserver_url)?;
+        let http_client = reqwest::Client::builder();
+
+        let http_client = if config.disable_ssl_verification {
+            http_client.danger_accept_invalid_certs(true)
+        } else {
+            http_client
+        };
+
+        let http_client = match config.proxy {
+            Some(p) => http_client.proxy(p),
+            None => http_client,
+        };
+
+        let http_client = if config.use_sys_proxy {
+            http_client.use_sys_proxy()
+        } else {
+            http_client
+        };
+
+        let mut headers = reqwest::header::HeaderMap::new();
+
+        headers.insert(
+            reqwest::header::USER_AGENT,
+            reqwest::header::HeaderValue::from_static("ruma"),
+        );
+
+        let http_client = http_client.default_headers(headers).build().unwrap();
+
+        Ok(Self {
+            homeserver,
+            http_client,
+            base_client: BaseClient::new(session),
+            event_callbacks: HashMap::new(),
+            event_futures: HashMap::new(),
+        })
+    }
+
+    pub fn add_event_callback(
+        &mut self,
+        event_type: EventType,
+        callback: impl FnMut(RoomEvent) + 'static,
+    ) {
+        self.event_callbacks.insert(event_type, Box::new(callback));
+    }
+
+    pub fn add_event_future(
+        &mut self,
+        event_type: EventType,
+        callback: impl FnMut(RoomEvent) -> Pin<Box<dyn Future<Output = ()>>> + 'static,
+    ) {
+        self.event_futures.insert(event_type, Box::new(callback));
+    }
+
+    pub async fn login<S: Into<String>>(
+        &mut self,
+        user: S,
+        password: S,
+        device_id: Option<S>,
+    ) -> Result<login::Response, Error> {
+        let request = login::Request {
+            address: None,
+            login_type: login::LoginType::Password,
+            medium: None,
+            device_id: device_id.map(|d| d.into()),
+            password: password.into(),
+            user: user.into(),
+        };
+
+        let response = self.send(request).await.unwrap();
+        self.base_client.receive_login_response(&response);
+
+        Ok(response)
+    }
+
+    pub async fn sync(
+        &mut self,
+        sync_settings: SyncSettings,
+    ) -> Result<sync_events::Response, Error> {
+        let request = sync_events::Request {
+            filter: None,
+            since: sync_settings.token,
+            full_state: sync_settings.full_state,
+            set_presence: None,
+            timeout: sync_settings.timeout,
+        };
+
+        let response = self.send(request).await.unwrap();
+
+        for (_, room) in &response.rooms.join {
+            for event in &room.timeline.events {
+                let event_type = match &event {
+                    RoomEvent::CallAnswer(e) => e.event_type(),
+                    RoomEvent::CallCandidates(e) => e.event_type(),
+                    RoomEvent::CallHangup(e) => e.event_type(),
+                    RoomEvent::CallInvite(e) => e.event_type(),
+                    RoomEvent::RoomAliases(e) => e.event_type(),
+                    RoomEvent::RoomAvatar(e) => e.event_type(),
+                    RoomEvent::RoomCanonicalAlias(e) => e.event_type(),
+                    RoomEvent::RoomCreate(e) => e.event_type(),
+                    RoomEvent::RoomGuestAccess(e) => e.event_type(),
+                    RoomEvent::RoomHistoryVisibility(e) => e.event_type(),
+                    RoomEvent::RoomJoinRules(e) => e.event_type(),
+                    RoomEvent::RoomMember(e) => e.event_type(),
+                    RoomEvent::RoomMessage(e) => e.event_type(),
+                    RoomEvent::RoomName(e) => e.event_type(),
+                    RoomEvent::RoomPinnedEvents(e) => e.event_type(),
+                    RoomEvent::RoomPowerLevels(e) => e.event_type(),
+                    RoomEvent::RoomRedaction(e) => e.event_type(),
+                    RoomEvent::RoomThirdPartyInvite(e) => e.event_type(),
+                    RoomEvent::RoomTopic(e) => e.event_type(),
+                    RoomEvent::CustomRoom(e) => e.event_type(),
+                    RoomEvent::CustomState(e) => e.event_type(),
+                };
+
+                if self.event_callbacks.contains_key(&event_type) {
+                    let cb = self.event_callbacks.get_mut(&event_type).unwrap();
+                    cb(event.clone());
+                }
+
+                if self.event_futures.contains_key(&event_type) {
+                    let cb = self.event_futures.get_mut(&event_type).unwrap();
+                    let future = Pin::from(cb(event.clone()));
+                    future.await;
+                }
+            }
+        }
+
+        Ok(response)
+    }
+
+    async fn send<Request: Endpoint>(&self, request: Request) -> Result<Request::Response, Error> {
+        let request: http::Request<Vec<u8>> = request.try_into()?;
+        let url = request.uri();
+        let url = self.homeserver.join(url.path()).unwrap();
+
+        let request_builder = match Request::METADATA.method {
+            HttpMethod::GET => self.http_client.get(url),
+            HttpMethod::POST => {
+                let body = request.body().clone();
+                self.http_client.post(url).body(body)
+            }
+            HttpMethod::PUT => unimplemented!(),
+            HttpMethod::DELETE => unimplemented!(),
+            _ => panic!("Unsuported method"),
+        };
+
+        let request_builder = if Request::METADATA.requires_authentication {
+            if let Some(ref session) = self.base_client.session {
+                request_builder.bearer_auth(&session.access_token)
+            } else {
+                return Err(Error(InnerError::AuthenticationRequired));
+            }
+        } else {
+            request_builder
+        };
+
+        let response = request_builder.send().await?;
+
+        let status = response.status();
+        let body = response.bytes().await?.as_ref().to_owned();
+        let response = HttpResponse::builder().status(status).body(body).unwrap();
+        let response = Request::Response::try_from(response)?;
+
+        Ok(response)
+    }
+}

src/base_client.rs

@@ -0,0 +1,197 @@
+use std::collections::HashMap;
+
+use crate::api::r0 as api;
+use crate::events::collections::all::RoomEvent;
+use crate::events::room::member::{MemberEvent, MembershipState};
+use crate::session::Session;
+
+pub type Token = String;
+pub type RoomId = String;
+pub type UserId = String;
+
+#[derive(Debug)]
+/// A Matrix room member.
+pub struct RoomMember {
+    /// The unique mxid of the user.
+    user_id: UserId,
+    /// The human readable name of the user.
+    display_name: Option<String>,
+    /// The matrix url of the users avatar.
+    avatar_url: Option<String>,
+    /// The users power level.
+    power_level: u8,
+}
+
+#[derive(Debug)]
+/// A Matrix rooom.
+pub struct Room {
+    /// The unique id of the room.
+    room_id: RoomId,
+    /// The mxid of our own user.
+    own_user_id: UserId,
+    /// The mxid of the room creator.
+    creator: Option<UserId>,
+    /// The map of room members.
+    members: HashMap<UserId, RoomMember>,
+    /// A list of users that are currently typing.
+    typing_users: Vec<UserId>,
+    /// A flag indicating if the room is encrypted.
+    encrypted: bool,
+}
+
+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: &UserId) -> Self {
+        Room {
+            room_id: room_id.to_string(),
+            own_user_id: own_user_id.clone(),
+            creator: None,
+            members: HashMap::new(),
+            typing_users: Vec::new(),
+            encrypted: false,
+        }
+    }
+
+    fn add_member(&mut self, event: &MemberEvent) -> bool {
+        if self.members.contains_key(&event.state_key) {
+            return false;
+        }
+
+        let member = RoomMember {
+            user_id: event.state_key.clone(),
+            display_name: event.content.displayname.clone(),
+            avatar_url: event.content.avatar_url.clone(),
+            power_level: 0,
+        };
+
+        self.members.insert(event.state_key.clone(), member);
+
+        true
+    }
+
+    fn update_joined_member(&mut self, event: &MemberEvent) -> bool {
+        if let Some(member) = self.members.get_mut(&event.state_key) {
+            member.display_name = event.content.displayname.clone();
+            member.avatar_url = event.content.avatar_url.clone();
+        }
+
+        false
+    }
+
+    fn handle_join(&mut self, event: &MemberEvent) -> bool {
+        match &event.prev_content {
+            Some(c) => match c.membership {
+                MembershipState::Join => self.update_joined_member(event),
+                MembershipState::Invite => self.add_member(event),
+                MembershipState::Leave => self.add_member(event),
+                _ => false,
+            },
+            None => self.add_member(event),
+        }
+    }
+
+    fn handle_leave(&mut self, event: &MemberEvent) -> bool {
+        false
+    }
+
+    fn handle_membership(&mut self, event: &MemberEvent) -> bool {
+        match event.content.membership {
+            MembershipState::Join => self.handle_join(event),
+            MembershipState::Leave => self.handle_leave(event),
+            MembershipState::Ban => self.handle_leave(event),
+            MembershipState::Invite => false,
+            MembershipState::Knock => false,
+        }
+    }
+
+    /// Receive an event for this room and update the room state.
+    /// # Arguments
+    ///
+    /// `event` - The event of the room.
+    ///
+    /// Returns true if the joined member list changed, false otherwise.
+    pub fn receive_event(&mut self, event: &RoomEvent) -> bool {
+        match event {
+            RoomEvent::RoomMember(m) => self.handle_membership(m),
+            _ => false,
+        }
+    }
+}
+
+#[derive(Debug)]
+/// A no IO Client implementation.
+///
+/// This Client is a state machine that receives responses and events and
+/// accordingly updates it's state.
+pub struct Client {
+    /// The current client session containing our user id, device id and access
+    /// token.
+    pub session: Option<Session>,
+    /// The current sync token that should be used for the next sync call.
+    pub sync_token: Option<Token>,
+    /// A map of the rooms our user is joined in.
+    pub joined_rooms: HashMap<RoomId, Room>,
+}
+
+impl Client {
+    /// Create a new client.
+    /// # Arguments
+    ///
+    /// `session` - An optional session if the user already has one from a
+    /// previous login call.
+    pub fn new(session: Option<Session>) -> Self {
+        Client {
+            session,
+            sync_token: None,
+            joined_rooms: HashMap::new(),
+        }
+    }
+
+    /// Is the client logged in.
+    pub fn logged_in(&self) -> bool {
+        self.session.is_some()
+    }
+
+    /// Receive a login response and update the session of the client.
+    /// # Arguments
+    ///
+    /// `response` - A successful login response that contains our access token
+    /// and device id.
+    pub fn receive_login_response(&mut self, response: &api::session::login::Response) {
+        let session = Session {
+            access_token: response.access_token.clone(),
+            device_id: response.device_id.clone(),
+            user_id: response.user_id.clone(),
+        };
+        self.session = Some(session);
+    }
+
+    /// Receive a room event for a joined room and update the client state.
+    /// # Arguments
+    /// 
+    /// `room_id` - The unique id of the room the event belongs to.
+    /// `event` - The event that should be handled by the client.
+    ///
+    /// Returns true if the membership list of the room changed, false
+    /// otherwise.
+    pub fn receive_joined_room_event(&mut self, room_id: &RoomId, event: &RoomEvent) -> bool {
+        let room = self
+            .joined_rooms
+            .entry(room_id.to_string())
+            .or_insert(Room::new(
+                room_id,
+                &self
+                    .session
+                    .as_ref()
+                    .expect("Receiving events while not being logged in")
+                    .user_id
+                    .to_string(),
+            ));
+
+        room.receive_event(event)
+    }
+}

src/lib.rs

@@ -1,233 +1,16 @@
-//! Crate `ruma_client` is a [Matrix](https://matrix.org/) client library.
+//! Crate `nio-client` is a [Matrix](https://matrix.org/) client library.
 //!
-use std::convert::{TryFrom, TryInto};
+#![warn(missing_docs)]
-
-use http::Method as HttpMethod;
-use http::Response as HttpResponse;
-use js_int::UInt;
-use reqwest;
-use ruma_api::Endpoint;
-use url::Url;
-
-use crate::error::InnerError;
 
 pub use crate::{error::Error, session::Session};
 pub use ruma_client_api as api;
 pub use ruma_events as events;
 
 //pub mod api;
+mod async_client;
+mod base_client;
 mod error;
 mod session;
 
-#[derive(Debug)]
+pub use async_client::{AsyncClient, AsyncClientConfig, SyncSettings};
-pub struct AsyncClient {
+pub use base_client::Client;
-    /// The URL of the homeserver to connect to.
-    homeserver: Url,
-    /// The underlying HTTP client.
-    client: reqwest::Client,
-    /// User session data.
-    session: Option<Session>,
-}
-
-#[derive(Default, Debug)]
-pub struct AsyncClientConfig {
-    proxy: Option<reqwest::Proxy>,
-    use_sys_proxy: bool,
-    disable_ssl_verification: bool,
-}
-
-impl AsyncClientConfig {
-    pub fn new() -> Self {
-        Default::default()
-    }
-
-    pub fn proxy(mut self, proxy: &str) -> Result<Self, Error> {
-        if self.use_sys_proxy {
-            return Err(Error(InnerError::ConfigurationError(
-                "Using the system proxy has been previously configured.".to_string(),
-            )));
-        }
-        self.proxy = Some(reqwest::Proxy::all(proxy)?);
-        Ok(self)
-    }
-
-    pub fn use_sys_proxy(mut self) -> Result<Self, Error> {
-        if self.proxy.is_some() {
-            return Err(Error(InnerError::ConfigurationError(
-                "A proxy has already been configured.".to_string(),
-            )));
-        }
-        self.use_sys_proxy = true;
-        Ok(self)
-    }
-
-    pub fn disable_ssl_verification(mut self) -> Self {
-        self.disable_ssl_verification = true;
-        self
-    }
-}
-
-#[derive(Debug, Default)]
-pub struct SyncSettings {
-    pub(crate) timeout: Option<UInt>,
-    pub(crate) token: Option<String>,
-    pub(crate) full_state: Option<bool>,
-}
-
-impl SyncSettings {
-    pub fn new() -> Self {
-        Default::default()
-    }
-
-    pub fn token<S: Into<String>>(mut self, token: S) -> Self {
-        self.token = Some(token.into());
-        self
-    }
-
-    pub fn timeout<T: TryInto<UInt>>(mut self, timeout: T) -> Result<Self, js_int::TryFromIntError>
-    where
-        js_int::TryFromIntError:
-            std::convert::From<<T as std::convert::TryInto<js_int::UInt>>::Error>,
-    {
-        self.timeout = Some(timeout.try_into()?);
-        Ok(self)
-    }
-
-    pub fn full_state(mut self, full_state: bool) -> Self {
-        self.full_state = Some(full_state);
-        self
-    }
-}
-
-use api::r0::session::login;
-use api::r0::sync::sync_events;
-
-impl AsyncClient {
-    /// Creates a new client for making HTTP requests to the given homeserver.
-    pub fn new(homeserver_url: &str, session: Option<Session>) -> Result<Self, url::ParseError> {
-        let homeserver = Url::parse(homeserver_url)?;
-        let client = reqwest::Client::new();
-
-        Ok(Self {
-            homeserver,
-            client,
-            session,
-        })
-    }
-
-    pub fn new_with_config(
-        homeserver_url: &str,
-        session: Option<Session>,
-        config: AsyncClientConfig,
-    ) -> Result<Self, url::ParseError> {
-        let homeserver = Url::parse(homeserver_url)?;
-        let client = reqwest::Client::builder();
-
-        let client = if config.disable_ssl_verification {
-            client.danger_accept_invalid_certs(true)
-        } else {
-            client
-        };
-
-        let client = match config.proxy {
-            Some(p) => client.proxy(p),
-            None => client,
-        };
-
-        let client = if config.use_sys_proxy {
-            client.use_sys_proxy()
-        } else {
-            client
-        };
-
-        let mut headers = reqwest::header::HeaderMap::new();
-
-        headers.insert(reqwest::header::USER_AGENT, reqwest::header::HeaderValue::from_static("ruma"));
-
-        let client = client.default_headers(headers).build().unwrap();
-
-        Ok(Self {
-            homeserver,
-            client,
-            session,
-        })
-    }
-
-    pub async fn login<S: Into<String>>(
-        &mut self,
-        user: S,
-        password: S,
-        device_id: Option<S>,
-    ) -> Result<login::Response, Error> {
-        let request = login::Request {
-            address: None,
-            login_type: login::LoginType::Password,
-            medium: None,
-            device_id: device_id.map(|d| d.into()),
-            password: password.into(),
-            user: user.into(),
-        };
-
-        let response = self.send(request).await.unwrap();
-
-        let session = Session {
-            access_token: response.access_token.clone(),
-            device_id: response.device_id.clone(),
-            user_id: response.user_id.clone(),
-        };
-
-        self.session = Some(session.clone());
-
-        Ok(response)
-    }
-
-    pub async fn sync(&self, sync_settings: SyncSettings) -> Result<sync_events::Response, Error> {
-        let request = sync_events::Request {
-            filter: None,
-            since: sync_settings.token,
-            full_state: sync_settings.full_state,
-            set_presence: None,
-            timeout: sync_settings.timeout,
-        };
-
-        let response = self.send(request).await.unwrap();
-
-        Ok(response)
-    }
-
-    async fn send<Request: Endpoint>(&self, request: Request) -> Result<Request::Response, Error> {
-        let request: http::Request<Vec<u8>> = request.try_into()?;
-        let url = request.uri();
-        let url = self.homeserver.join(url.path()).unwrap();
-
-        let request_builder = match Request::METADATA.method {
-            HttpMethod::GET => self.client.get(url),
-            HttpMethod::POST => {
-                let body = request.body().clone();
-                self.client.post(url).body(body)
-            }
-            HttpMethod::PUT => unimplemented!(),
-            HttpMethod::DELETE => unimplemented!(),
-            _ => panic!("Unsuported method"),
-        };
-
-        let request_builder = if Request::METADATA.requires_authentication {
-            if let Some(ref session) = self.session {
-                request_builder.bearer_auth(&session.access_token)
-            } else {
-                return Err(Error(InnerError::AuthenticationRequired));
-            }
-        } else {
-            request_builder
-        };
-
-        let response = request_builder.send().await?;
-
-        let status = response.status();
-        let body = response.bytes().await?.as_ref().to_owned();
-        let response = HttpResponse::builder().status(status).body(body).unwrap();
-        let response = Request::Response::try_from(response)?;
-
-        Ok(response)
-    }
-}

src/session.rs

@@ -12,33 +12,3 @@ pub struct Session {
     /// The ID of the client device
     pub device_id: String,
 }
-
-impl Session {
-    /// Create a new user session from an access token and a user ID.
-    #[deprecated]
-    pub fn new(access_token: String, user_id: UserId, device_id: String) -> Self {
-        Self {
-            access_token,
-            user_id,
-            device_id,
-        }
-    }
-
-    /// Get the access token associated with this session.
-    #[deprecated]
-    pub fn access_token(&self) -> &str {
-        &self.access_token
-    }
-
-    /// Get the ID of the user the session belongs to.
-    #[deprecated]
-    pub fn user_id(&self) -> &UserId {
-        &self.user_id
-    }
-
-    /// Get ID of the device the session belongs to.
-    #[deprecated]
-    pub fn device_id(&self) -> &str {
-        &self.device_id
-    }
-}