Struct OAuth

pub struct OAuth { /* private fields */ }

A high-level authentication API to interact with an OAuth 2.0 authorization server.

Implementations

impl OAuth

pub async fn enable_cross_process_refresh_lock( &self, lock_value: String, ) -> Result<(), OAuthError>

Available on crate feature e2e-encryption only.

Enable a cross-process store lock on the state store, to coordinate refreshes across different processes.

pub fn login_with_qr_code<'a>( &'a self, data: &'a QrCodeData, registration_method: ClientRegistrationMethod, ) -> LoginWithQrCode<'a>

Available on crate feature e2e-encryption and non-WebAssembly only.

Log in using a QR code.

This method allows you to log in with a QR code, the existing device needs to display the QR code which this device can scan and call this method to log in.

A successful login using this method will automatically mark the device as verified and transfer all end-to-end encryption related secrets, like the private cross-signing keys and the backup key from the existing device to the new device.

Example

use anyhow::bail;
use futures_util::StreamExt;
use matrix_sdk::{
    authentication::oauth::{
        registration::ClientMetadata,
        qrcode::{LoginProgress, QrCodeData, QrCodeModeData},
    },
    ruma::serde::Raw,
    Client,
};
// You'll need to use a different library to scan and extract the raw bytes from the QR
// code.
let qr_code_data = QrCodeData::from_bytes(bytes)?;

// Fetch the homeserver out of the parsed QR code data.
let QrCodeModeData::Reciprocate{ server_name } = qr_code_data.mode_data else {
    bail!("The QR code is invalid, we did not receive a homeserver in the QR code.");
};

// Build the client as usual.
let client = Client::builder()
    .server_name_or_homeserver_url(server_name)
    .handle_refresh_tokens()
    .build()
    .await?;

let oauth = client.oauth();
let metadata: Raw<ClientMetadata> = client_metadata();

// Subscribing to the progress is necessary since we need to input the check
// code on the existing device.
let login = oauth.login_with_qr_code(&qr_code_data, metadata.into());
let mut progress = login.subscribe_to_progress();

// Create a task which will show us the progress and tell us the check
// code to input in the existing device.
let task = tokio::spawn(async move {
    while let Some(state) = progress.next().await {
        match state {
            LoginProgress::Starting => (),
            LoginProgress::EstablishingSecureChannel { check_code } => {
                let code = check_code.to_digit();
                println!("Please enter the following code into the other device {code:02}");
            },
            LoginProgress::WaitingForToken { user_code } => {
                println!("Please use your other device to confirm the log in {user_code}")
            },
            LoginProgress::Done => break,
        }
    }
});

// Now run the future to complete the login.
login.await?;
task.abort();

println!("Successfully logged in: {:?} {:?}", client.user_id(), client.device_id());

pub fn issuer(&self) -> Option<&Url>

The OAuth 2.0 authorization server used for authorization.

Returns None if the client was not registered or if the registration was not restored with OAuth::restore_registered_client() or OAuth::restore_session().

pub async fn account_management_actions_supported( &self, ) -> Result<BTreeSet<AccountManagementAction>, OAuthError>

The account management actions supported by the authorization server’s account management URL.

Returns Ok(None) if the data was not found. Returns an error if the request to get the server metadata fails.

pub async fn fetch_account_management_url( &self, ) -> Result<Option<AccountManagementUrlBuilder>, OAuthError>

Build the URL where the user can manage their account.

This will always request the latest server metadata to get the account management URL.

To avoid making a request each time, you can use OAuth::account_management_url().

Returns an AccountManagementUrlBuilder if the URL was found. An optional action to perform can be added with .action(), and the final URL is obtained with .build().

Returns Ok(None) if the URL was not found.

Returns an error if the request to get the server metadata fails or the URL could not be parsed.

pub async fn account_management_url( &self, ) -> Result<Option<AccountManagementUrlBuilder>, OAuthError>

Get the account management URL where the user can manage their identity-related settings.

This method will cache the URL for a while, if the cache is not populated it will request the server metadata, like a call to OAuth::fetch_account_management_url(), and cache the resulting URL before returning it.

Returns an AccountManagementUrlBuilder if the URL was found. An optional action to perform can be added with .action(), and the final URL is obtained with .build().

Returns Ok(None) if the URL was not found.

Returns an error if the request to get the server metadata fails or the URL could not be parsed.

pub async fn server_metadata( &self, ) -> Result<AuthorizationServerMetadata, OAuthDiscoveryError>

Fetch the OAuth 2.0 authorization server metadata of the homeserver.

Returns an error if a problem occurred when fetching or validating the metadata.

pub fn client_id(&self) -> Option<&ClientId>

The OAuth 2.0 unique identifier of this client obtained after registration.

Returns None if the client was not registered or if the registration was not restored with OAuth::restore_registered_client() or OAuth::restore_session().

pub fn user_session(&self) -> Option<UserSession>

The OAuth 2.0 user session of this client.

Returns None if the client was not logged in with the OAuth 2.0 API.

pub fn full_session(&self) -> Option<OAuthSession>

The full OAuth 2.0 session of this client.

Returns None if the client was not logged in with the OAuth 2.0 API.

pub async fn register_client( &self, client_metadata: &Raw<ClientMetadata>, ) -> Result<ClientRegistrationResponse, OAuthError>

Register a client with the OAuth 2.0 server.

This should be called before any authorization request with an unknown authorization server. If the client is already registered with the server, it should use OAuth::restore_registered_client().

Note that this method only supports public clients, i.e. clients without a secret.

Arguments

• client_metadata - The serialized client metadata to register.

The client ID in the response should be persisted for future use and reused for the same authorization server, identified by the OAuth::issuer(), along with the client metadata sent to the server, even for different sessions or user accounts.

Panic

Panics if the authentication data was already set.

Example

use matrix_sdk::{Client, ServerName};
let server_name = ServerName::parse("myhomeserver.org")?;
let client = Client::builder().server_name(&server_name).build().await?;
let oauth = client.oauth();

if let Err(error) = oauth.server_metadata().await {
    if error.is_not_supported() {
        println!("OAuth 2.0 is not supported");
    }

    return Err(error.into());
}

let response = oauth
    .register_client(&client_metadata)
    .await?;

println!(
    "Registered with client_id: {}",
    response.client_id.as_str()
);

// The API only supports clients without secrets.
let client_id = response.client_id;
let issuer = oauth.issuer().expect("issuer should be set after registration");

persist_client_registration(issuer, &client_metadata, &client_id);

pub fn restore_registered_client(&self, issuer: Url, client_id: ClientId)

Set the data of a client that is registered with an OAuth 2.0 authorization server.

This should be called when logging in with a server that is already known by the client.

Note that this method only supports public clients, i.e. clients with no credentials.

Arguments

• issuer - The authorization server that was used to register the client.

• client_id - The unique identifier to authenticate the client with the server, obtained after registration.

Panic

Panics if authentication data was already set.

pub async fn restore_session( &self, session: OAuthSession, room_load_settings: RoomLoadSettings, ) -> Result<()>

Restore a previously logged in session.

This can be used to restore the client to a logged in state, including loading the sync state and the encryption keys from the store, if one was set up.

Arguments

• session - The session to restore.
• room_load_settings — Specify how many rooms must be restored; use ::default() if you don’t know which value to pick.

Panic

Panics if authentication data was already set.

pub fn login( &self, registration_method: ClientRegistrationMethod, redirect_uri: Url, device_id: Option<OwnedDeviceId>, ) -> OAuthAuthCodeUrlBuilder

Login via OAuth 2.0 with the Authorization Code flow.

This should be called after OAuth::register_client() or OAuth::restore_registered_client().

OAuth::finish_login() must be called once the user has been redirected to the redirect_uri. OAuth::abort_login() should be called instead if the authorization should be aborted before completion.

Arguments

• registration_method - The method to restore or register the client with the server.

• redirect_uri - The URI where the end user will be redirected after authorizing the login. It must be one of the redirect URIs sent in the client metadata during registration.

• device_id - The unique ID that will be associated with the session. If not set, a random one will be generated. It can be an existing device ID from a previous login call. Note that this should be done only if the client also holds the corresponding encryption keys.

Example

use anyhow::anyhow;
use matrix_sdk::{
    Client,
    authentication::oauth::OAuthRegistrationStore,
};
let oauth = client.oauth();

let registration_store = OAuthRegistrationStore::new(
    store_path,
    client_metadata()
).await?;

let auth_data = oauth.login(registration_store.into(), redirect_uri, None)
                     .build()
                     .await?;

// Open auth_data.url and wait for response at the redirect URI.
let redirected_to_uri = open_uri_and_wait_for_redirect(auth_data.url).await;

oauth.finish_login(redirected_to_uri.into()).await?;

// The session tokens can be persisted from the
// `Client::session_tokens()` method.

// You can now make requests to the Matrix API.
let _me = client.whoami().await?;

pub async fn finish_login(&self, url_or_query: UrlOrQuery) -> Result<()>

Finish the login process.

This method should be called after the URL returned by OAuthAuthCodeUrlBuilder::build() has been presented and the user has been redirected to the redirect URI after completing the authorization.

If the authorization needs to be cancelled before its completion, OAuth::abort_login() should be used instead to clean up the local data.

Arguments

• url_or_query - The URI where the user was redirected, or just its query part.

Returns an error if the authorization failed, if a request fails, or if the client was already logged in with a different session.

pub async fn abort_login(&self, state: &CsrfToken)

Abort the login process.

This method should be called if an authorization should be aborted before it is completed.

If the authorization has been completed, OAuth::finish_login() should be used instead.

Arguments

• state - The state provided in OAuthAuthorizationData after building the authorization URL.

pub async fn refresh_access_token(&self) -> Result<(), RefreshTokenError>

Refresh the access token.

This should be called when the access token has expired. It should not be needed to call this manually if the Client was constructed with ClientBuilder::handle_refresh_tokens().

This method is protected behind a lock, so calling this method several times at once will only call the endpoint once and all subsequent calls will wait for the result of the first call. The first call will return Ok(Some(response)) or a RefreshTokenError, while the others will return Ok(None) if the token was refreshed by the first call or the same RefreshTokenError, if it failed.

pub async fn logout(&self) -> Result<(), OAuthError>

Log out from the currently authenticated session.

Trait Implementations

impl Clone for OAuth

fn clone(&self) -> OAuth

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OAuth

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.