Add SSO login endpoint

CHANGELOG.md

@@ -9,6 +9,7 @@ Improvements:
 * Add media endpoints: `r0::media::{get_media_config, get_media_preview, get_content_as_filename}`
 * Add `unstable_features` to `unversioned::get_supported_versions` (introduced in r0.5.0)
 * Add request and response parameters for `r0::account::deactivate`
+* Add `r0::session::sso_login` (introduced in r0.5.0)
 
 Breaking changes:
 
@@ -17,7 +18,7 @@ Breaking changes:
 * Add `allow_remote` parameter to `r0::media::get_content`
 * Add missing parameters for `r0::room::create_room`
 * Moved `r0::room::create_room::Invite3pid` to `r0::membership::Invite3pid`
-* Replaced `user_id` parameter of `r0::membership::invite_user` with `recipient` 
+* Replaced `user_id` parameter of `r0::membership::invite_user` with `recipient`
   to allow invitation of users by either Matrix or third party identifiers.
 * Remove deprecated endpoint `r0::contact::create_contact` (deprecated in r0.6.0)
 

src/r0/session.rs

@@ -4,3 +4,4 @@ pub mod get_login_types;
 pub mod login;
 pub mod logout;
 pub mod logout_all;
+pub mod sso_login;

src/r0/session/sso_login.rs

@@ -0,0 +1,28 @@
+//! [GET /_matrix/client/r0/login/sso/redirect](https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-login-sso-redirect)
+
+use ruma_api::ruma_api;
+
+ruma_api! {
+    metadata {
+        description: "",
+        method: GET,
+        name: "sso_login",
+        path: "/_matrix/client/r0/login/sso/redirect",
+        rate_limited: false,
+        requires_authentication: false,
+
+    }
+
+    request {
+        /// URL to which the homeserver should return the user after completing
+        /// authentication with the SSO identity provider.
+        #[ruma_api(query)]
+        pub redirect_url: String,
+    }
+
+    response {
+        /// Redirect URL to the SSO identity provider.
+        #[ruma_api(header = LOCATION)]
+        pub location: String,
+    }
+}