- add: join server handler

- add: validate session function to validate the session status

packet-service/src/auth_client.rs

@@ -1,5 +1,5 @@
 use crate::auth::auth_service_client::AuthServiceClient;
-use crate::auth::{Empty, LoginRequest, LoginResponse, LogoutRequest, ValidateTokenRequest, ValidateTokenResponse};
+use crate::auth::{Empty, LoginRequest, LoginResponse, LogoutRequest, ValidateSessionRequest, ValidateSessionResponse, ValidateTokenRequest, ValidateTokenResponse};
 use tonic::transport::Channel;
 
 pub struct AuthClient {
@@ -32,6 +32,15 @@ impl AuthClient {
         Ok(response.into_inner())
     }
 
+    pub async fn validate_session(&mut self, session_id: &str) -> Result<ValidateSessionResponse, Box<dyn std::error::Error + Send + Sync>> {
+        let request = ValidateSessionRequest {
+            session_id: session_id.to_string()
+        };
+
+        let response = self.client.validate_session(request).await?;
+        Ok(response.into_inner())
+    }
+
     pub async fn logout(&mut self, session_id: &str) -> Result<Empty, Box<dyn std::error::Error + Send + Sync>> {
         let request = LogoutRequest {
             session_id: session_id.to_string(),