Start to build init openid login

geneit_backend/src/controllers/auth_controller.rs

@@ -2,7 +2,7 @@ use crate::constants::StaticConstraints;
 use crate::controllers::HttpResult;
 use crate::models::{User, UserID};
 use crate::services::rate_limiter_service::RatedAction;
-use crate::services::{login_token_service, rate_limiter_service, users_service};
+use crate::services::{login_token_service, openid_service, rate_limiter_service, users_service};
 use actix_remote_ip::RemoteIP;
 use actix_web::{web, HttpResponse};
 
@@ -227,3 +227,20 @@ async fn finish_login(user: &User) -> HttpResult {
         token: login_token_service::gen_new_token(user).await?,
     }))
 }
+
+#[derive(serde::Deserialize)]
+pub struct StartOpenIDLoginQuery {
+    provider: String,
+}
+
+#[derive(serde::Serialize)]
+pub struct StartOpenIDLoginResponse {
+    url: String,
+}
+
+/// Start OpenID login
+pub async fn start_openid_login(ip: RemoteIP, req: web::Json<StartOpenIDLoginQuery>) -> HttpResult {
+    let url = openid_service::start_login(&req.provider, ip.0).await?;
+
+    Ok(HttpResponse::Ok().json(StartOpenIDLoginResponse { url }))
+}