protocol further implemented

Lucien/Rust/src/client.rs

@@ -15,8 +15,12 @@ fn get_entry() -> String {
 fn write_to_server(stream: TcpStream) {
     let mut writer = BufWriter::new(&stream);
 
+    // entrée du nom d'utilisateur
     loop {
         match &*get_entry() {
+            "" => {
+                continue;
+            }
             "/quit" => {
                 println!("Disconnecting...");
                 writeln!(writer, "BYE").unwrap();
@@ -25,20 +29,50 @@ fn write_to_server(stream: TcpStream) {
                 return ();
             }
             line => {
+                let line_str : String = String::from(line);
+                // let spliced: Vec<&str> = line_str.split(" ").collect();
+                let spliced: Vec<&str> = line_str.split_whitespace().collect();
+                if spliced.len() > 1 {
+                    println!("Cannot use whitespace in username.");
+                    continue;
+                }
                 writeln!(writer, "{}", line).unwrap();
                 writer.flush().unwrap();
             }
         }
+        break;
+    }
+
+    loop {
+        match &*get_entry() {
+            "" => {
+                ;
+            }
+            "/quit" => {
+                println!("Disconnecting...");
+                writeln!(writer, "BYE").unwrap();
+                writer.flush().unwrap();
+                println!("Disconnected!");
+                return ();
+            }
+            "/clients" => {
+                writeln!(writer, "REQ CLIENTS").unwrap();
+                writer.flush().unwrap();
+            }
+            line => {
+                writeln!(writer, "MSG {}", line).unwrap();
+                writer.flush().unwrap();
+            }
+        }
     }
 }
 
 fn exchange_with_server(stream: TcpStream) {
     let server = stream.peer_addr().unwrap();
     println!("Connected to {}", server);
-    // Buffered reading and writing
+
     let stream_cpy = stream.try_clone().unwrap();
     let mut reader = BufReader::new(&stream_cpy);
-    // let mut writer = BufWriter::new(&stream);
 
     println!("Enter `/quit` when you want to leave");
 
@@ -51,7 +85,6 @@ fn exchange_with_server(stream: TcpStream) {
                         // Reader is at EOF. Could use ErrorKind::UnexpectedEOF, but still unstable.
                         let ret = std::io::Error::new(std::io::ErrorKind::Other, "test");
                         return Err(ret): std::result::Result<&str, std::io::Error>;
-                        // return Err(Error::new(ErrorKind::Other, "unexpected EOF"));
                     }
                     line.pop();
                 }
@@ -66,8 +99,21 @@ fn exchange_with_server(stream: TcpStream) {
     });
 
     match (|| loop {
-        let input = receive!();
-        println!("{}", input);
+        let input: String = String::from(receive!());
+        let spliced_input: Vec<&str> = input.split(" ").collect();
+        // if spliced_input[0] == "FROM" {
+        //     println!("<{}>: {}", spliced_input[1], spliced_input[3]);
+        //     continue;
+        // }
+        match spliced_input[0] {
+            "FROM" => {
+                println!("<{}>: {}", spliced_input[1], spliced_input[3]);
+            }
+            _ => {
+                println!("{}", input);
+            }
+        }
+        // println!("{}", input);
     })()
     {
         Ok(_) => {

Lucien/Rust/src/server.rs

@@ -4,18 +4,61 @@ use std::thread;
 use std::sync::{Arc, Mutex, MutexGuard};
 use std::collections::HashMap;
 
+///////////////////////////////////////////////////////////////////////////////
+//                     Evolution implementation protocole                    //
+///////////////////////////////////////////////////////////////////////////////
+
+/*
+
+1.1   [ ]
+1.2   [ ]
+1.3   [ ]
+1.4   [ ]
+1.5   [ ]
+1.6   [ ]
+1.7   [X]
+1.8   [ ]
+1.9   [ ]
+2.1   [X]
+2.2   [X]
+3.1   [ ] // pas utile avec Rust
+3.2   [X]
+4.1.1 [X]
+4.1.2 [X]
+4.2.1 [X]
+4.2.2 [X]
+
+*/
+
+///////////////////////////////////////////////////////////////////////////////
+//                                    code                                   //
+///////////////////////////////////////////////////////////////////////////////
+
 // Map for all connected clients containing their name and stream
 type UserMapValue = (String, TcpStream);
 type UserMap = HashMap<SocketAddr, UserMapValue>;
 
 fn distribute_message(msg: &str, not_to: &SocketAddr, lock: &mut MutexGuard<UserMap>) {
+    let mut name = String::new();
+    for (client, entry) in (*lock).iter() {
+        if client == not_to {
+            name = entry.0.clone();
+            break;
+        }
+    }
     for (other_client, entry) in (*lock).iter() {
         if other_client != not_to {
             let other_name = &entry.0;
             let other_stream = &entry.1;
             match (|| -> Result<()> {
                 let mut writer = BufWriter::new(other_stream);
-                try!(writeln!(writer, "{}", msg));
+                // test if message begins with "MSG " /////////////////////////
+                if &msg[..4] == "MSG " {
+                    try!(writeln!(writer, "FROM {} {}", name, msg));
+                } else {
+                    try!(writeln!(writer, "{}", msg));
+                }
+                ///////////////////////////////////////////////////////////////
                 try!(writer.flush());
                 return Ok(());
             })()
@@ -32,9 +75,28 @@ fn distribute_message(msg: &str, not_to: &SocketAddr, lock: &mut MutexGuard<User
     }
 }
 
+fn send_clients_name(to: &SocketAddr, lock: &mut MutexGuard<UserMap>) {
+    let mut clients = String::new();
+    for (client, entry) in (*lock).iter() {
+        if client != to {
+            clients.push_str(&format!("{} ", &entry.0));
+        }
+    }
+    println!("{}", clients);
+    for (client, entry) in (*lock).iter() {
+        if client == to {
+            let stream = &entry.1;
+            let mut writer = BufWriter::new(stream);
+            writeln!(writer, "{}", clients).unwrap();
+            writer.flush().unwrap();
+            return;
+        }
+    }
+}
+
 fn disconnect_user(name: &str, client: &SocketAddr, lock: &mut MutexGuard<UserMap>) {
     (*lock).remove(&client);
-    distribute_message(&format!("{} left", name), client, lock);
+    distribute_message(&format!("LOGOUT {}", name), client, lock);
 }
 
 fn handle_client(stream: TcpStream, clients: Arc<Mutex<UserMap>>) {
@@ -97,23 +159,34 @@ fn handle_client(stream: TcpStream, clients: Arc<Mutex<UserMap>>) {
     {
         let mut lock = clients.lock().unwrap();
         (*lock).insert(client, (name.clone(), stream.try_clone().unwrap()));
-        distribute_message(&format!("{} joined", name), &client, &mut lock);
+        distribute_message(&format!("JOIN {}", name), &client, &mut lock);
     }
 
+    writeln!(writer, "WELCOME").unwrap();
+    writer.flush().unwrap();
+
     // Chat loop: Receive messages from users
-    match (|| {
-        loop {
-            let input = receive!();
-            if input == "BYE" {
-                send!("Bye!");
+    match (|| loop {
+        match receive!().as_str() {
+            "BYE" => {
+                send!("BYE");
                 return Ok(());
             }
-
-            // Distribute message
-            println!("{} <{}>: {}", client, name, input);
-            {
-                let mut lock = clients.lock().unwrap();
-                distribute_message(&format!("<{}>: {}", name, input), &client, &mut lock);
+            "PING" => {
+                send!("PONG");
+            }
+            "REQ CLIENTS" => {
+                {
+                    let mut lock = clients.lock().unwrap();
+                    send_clients_name(&client, &mut lock);
+                }
+            }
+            input => {
+                println!("{} <{}>: {}", client, name, input);
+                {
+                    let mut lock = clients.lock().unwrap();
+                    distribute_message(&format!("{}", input), &client, &mut lock);
+                }
             }
         }
     })()