diff --git a/README.md b/README.md
index 23031a3..71e7245 100644
--- a/README.md
+++ b/README.md
@@ -8,4 +8,4 @@
 
 - `docker build . -t gateway`
 - `docker run -p 22:22 gateway`
-- `ssh test@localhost "{\"command\": \"/bin/bash\", \"envs\": {}, \"args\": []}"`
\ No newline at end of file
+- `ssh test@localhost "{\"identifier\": \"project_env\", \"token\": \"token\", \"command\": \"/bin/bash\", \"envs\": {}, \"args\": []}"`
\ No newline at end of file
diff --git a/proto/internal.proto b/proto/internal.proto
index 87deafb..d341d61 100644
--- a/proto/internal.proto
+++ b/proto/internal.proto
@@ -13,8 +13,9 @@ message AuthorizeRequest {
   // identifier of the project
   string identifier = 1;
   // ssh_keys from ssh agent
-  string public_ssh_keys = 2;
-  // command?
+  string token = 2;
+  // command like /bin/bash
+  string command = 3;
 }
 
 enum AuthorizationStatus {
@@ -26,7 +27,6 @@ message AuthorizeResponse {
   AuthorizationStatus status = 1;
   string error_message = 2;
   string session_uuid = 3;
-  string log_file = 4;
 }
 
 message TerminateRequest {
diff --git a/src/client/main.rs b/src/client/main.rs
index eaf2c47..f23bc99 100644
--- a/src/client/main.rs
+++ b/src/client/main.rs
@@ -2,7 +2,7 @@
 
 pub mod client;
 
-use libcommand::internal::{AuthorizeRequest, AuthorizeResponse};
+use libcommand::internal::{AuthorizationStatus, AuthorizeRequest, AuthorizeResponse};
 use tonic::Response;
 
 #[cfg(unix)]
@@ -11,23 +11,26 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let arg = std::env::args()
         .skip(1)
         .last().unwrap();
-    let mut command : std::process::Command = serde_json::from_str::<libcommand::Command>(&arg)
-        .unwrap()
-        .into();
+    let command_arg : libcommand::Command = serde_json::from_str::<libcommand::Command>(&arg)
+        .unwrap();
 
     let mut client = client::connect().await?;
 
     let request = tonic::Request::new(AuthorizeRequest {
-        identifier: "Tonic".into(),
-        public_ssh_keys: "Tonic".into(),
+        identifier: command_arg.identifier.clone(),
+        token: command_arg.token.clone(),
+        command: command_arg.command.clone()
     });
 
     let response : Response<AuthorizeResponse> = client.authorize(request).await?;
 
-    println!("RESPONSE={:?}", response);
-
-    let mut child = command.spawn().unwrap();
-    child.wait().unwrap();
+    if AuthorizationStatus::from_i32(response.get_ref().status) == Some(AuthorizationStatus::Authorized) {
+        let mut command : std::process::Command = command_arg.into();
+        let mut child = command.spawn().unwrap();
+        child.wait().unwrap();
+    } else {
+        eprintln!("Permission denied");
+    }
 
     Ok(())
 }
diff --git a/src/daemon/server.rs b/src/daemon/server.rs
index ba55f95..6e718bc 100644
--- a/src/daemon/server.rs
+++ b/src/daemon/server.rs
@@ -6,7 +6,7 @@ use tonic::{Request, Response, Status};
 
 use libcommand::internal::{
     unix_server::Unix,
-    AuthorizeRequest, AuthorizeResponse, TerminateRequest, TerminateResponse
+    AuthorizeRequest, AuthorizeResponse, AuthorizationStatus, TerminateRequest, TerminateResponse, TerminateStatus
 };
 
 #[derive(Default)]
@@ -24,10 +24,9 @@ impl Unix for DaemonServer {
             println!("Got a request {:?} with info {:?}", request, conn_info);
         }
 
-        let reply = libcommand::internal::AuthorizeResponse {
-            status: libcommand::internal::AuthorizationStatus::Authorized.into(),
+        let reply = AuthorizeResponse {
+            status: AuthorizationStatus::Authorized.into(),
             error_message: "".into(),
-            log_file: "".into(),
             session_uuid: "".into()
         };
         Ok(Response::new(reply))
@@ -43,8 +42,8 @@ impl Unix for DaemonServer {
             println!("Got a request {:?} with info {:?}", request, conn_info);
         }
 
-        let reply = libcommand::internal::TerminateResponse {
-            status: libcommand::internal::TerminateStatus::Ok.into(),
+        let reply = TerminateResponse {
+            status: TerminateStatus::Ok.into(),
             error_message: "".into(),
         };
         Ok(Response::new(reply))
diff --git a/src/lib.rs b/src/lib.rs
index eb609f1..07590f7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,9 +9,11 @@ pub mod internal {
 
 #[derive(Serialize, Deserialize, Debug)]
 pub struct Command {
-    command: String,
-    envs: HashMap<String, String>,
-    args: Vec<String>
+    pub identifier: String,
+    pub token: String,
+    pub command: String,
+    pub envs: HashMap<String, String>,
+    pub args: Vec<String>
 }
 
 impl Into<std::process::Command> for Command {