query metod is now working on server

src/server/net.rs

@@ -1,18 +1,31 @@
+use rsa::pkcs1::{DecodeRsaPublicKey, EncodeRsaPublicKey};
 pub async fn handle_request(
-    mut buf: [u8; pea_2_pea::BUFFER_SIZE],
+    buf: [u8; pea_2_pea::BUFFER_SIZE],
     socket: std::sync::Arc<std::net::UdpSocket>,
     src: core::net::SocketAddr,
     data_len: usize,
     server_key_pair: pea_2_pea::shared::crypto::KeyPair,
 ) {
-    #[cfg(target_endian = "little")]
-    buf.reverse();
-
     match buf[0] {
         x if x == pea_2_pea::ServerMethods::QUERY as u8 => {
             #[cfg(debug_assertions)]
-            println!("QUERY method");
+            eprintln!("QUERY method");
+            let pkcs_encoded_public_key: rsa::pkcs8::Document =
+                server_key_pair.public_key.to_pkcs1_der().unwrap();
+            let mut send_vec: Vec<u8> = pkcs_encoded_public_key.into_vec();
+            send_vec.insert(0, pea_2_pea::ServerMethods::QUERY as u8);
+
+            match socket.send_to(&send_vec, &src) {
+                Ok(s) => {
+                    #[cfg(debug_assertions)]
+                    eprintln!("send {} bytes", s);
+                }
+                Err(e) => {
+                    eprintln!("Error snding data: {}", e);
+                }
+            }
         }
+
         x if x == pea_2_pea::ServerMethods::GET as u8 => {
             #[cfg(debug_assertions)]
             println!("GET method");