Implement request auth ticket method

crates/bioauth-flow-rpc/src/lib.rs

@@ -127,6 +127,10 @@ pub trait Bioauth<Timestamp, TxHash> {
     /// Authenticate with provided liveness data.
     #[method(name = "bioauth_authenticate")]
     async fn authenticate(&self, liveness_data: LivenessData) -> RpcResult<TxHash>;
+
+    /// Request auth ticket based on provided liveness data.
+    #[method(name = "bioauth_requestAuthTicket")]
+    async fn request_auth_ticket(&self, liveness_data: LivenessData) -> RpcResult<Box<[u8]>>;
 }
 
 /// The RPC implementation.
@@ -484,4 +488,32 @@ where
 
         Ok(tx_hash)
     }
+
+    async fn request_auth_ticket(&self, liveness_data: LivenessData) -> RpcResult<Box<[u8]>> {
+        self.deny_unsafe.check_if_safe()?;
+
+        info!("Bioauth flow - authentication in progress");
+
+        let errtype = |val: errors::authenticate::Error<TransactionPool::Error>| {  val };
+
+        let public_key = rpc_validator_key_logic::validator_public_key(&self.validator_key_extractor).map_err(AuthenticateError::KeyExtraction).map_err(errtype)?;
+        let (opaque_liveness_data, signature) = self.sign(public_key, &liveness_data).await
+            .map_err(AuthenticateError::Sign).map_err(errtype)?;
+
+        let response = self
+            .robonode_client
+            .as_ref()
+            .authenticate(AuthenticateRequest {
+                liveness_data: opaque_liveness_data.as_ref(),
+                liveness_data_signature: signature.as_ref(),
+            })
+            .await
+            .map_err(AuthenticateError::Robonode).map_err(errtype)?;
+
+        info!("Bioauth flow - authentication complete");
+
+        info!(message = "We've obtained an auth ticket", auth_ticket = ?response.auth_ticket);
+
+        Ok(response.auth_ticket)
+    }
 }