From 82cc13462636137761ba3d705e4b7bc1a1d07d12 Mon Sep 17 00:00:00 2001
From: Tiago Batista Cardoso <tiago.cardoso7485@gmail.com>
Date: Sun, 11 Jan 2026 22:00:10 +0100
Subject: [PATCH] thing

---
 client-gui/src/gui_app.rs                |  8 ++++----
 client-network/src/lib.rs                |  4 ++--
 client-network/src/messages_structure.rs |  2 ++
 todo.md                                  | 16 ++++++++++++++--
 4 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/client-gui/src/gui_app.rs b/client-gui/src/gui_app.rs
index 020b250..be1d8c9 100644
--- a/client-gui/src/gui_app.rs
+++ b/client-gui/src/gui_app.rs
@@ -27,7 +27,7 @@ pub struct P2PClientApp {
 
     // GUI State
     status_message: String,
-    known_peers: Vec<String>,
+    known_peers: Vec<(String, bool)>,
     connect_address_input: String,
     connected_address: String,
     connect_name_input: String,
@@ -62,7 +62,7 @@ impl P2PClientApp {
             network_cmd_tx: cmd_tx,
             network_event_rx: event_rx,
             status_message: "Client Initialized. Awaiting network status...".to_string(),
-            known_peers: vec!["bob".to_string()],
+            known_peers: vec![("bob".to_string(), true)],
             connect_address_input: "https://jch.irif.fr:8443".to_string(),
             connected_address: "".to_string(),
             loaded_fs,
@@ -111,8 +111,8 @@ impl eframe::App for P2PClientApp {
                     todo!();
 
                     self.status_message = format!("✅ Peer connected: {}", addr);
-                    if !self.known_peers.contains(&addr) {
-                        self.known_peers.push(addr);
+                    if !self.known_peers.contains(&(addr, true)) {
+                        self.known_peers.push((addr, true));
                     }
                 }
                 NetworkEvent::PeerListUpdated(peers) => {
diff --git a/client-network/src/lib.rs b/client-network/src/lib.rs
index e5ef93e..39c82a2 100644
--- a/client-network/src/lib.rs
+++ b/client-network/src/lib.rs
@@ -123,7 +123,7 @@ pub enum NetworkEvent {
     Disconnected(),
     Error(String),
     PeerConnected(String),
-    PeerListUpdated(Vec<String>),
+    PeerListUpdated(Vec<(String, bool)>),
     FileTreeReceived(String, Vec<MerkleNode>), // peer_id, content
     DataReceived(String, MerkleNode),
     FileTreeRootReceived(String, String),
@@ -292,7 +292,7 @@ pub fn start_p2p_executor(
                             match get_peer_list(ip).await {
                                 Ok(body) => match String::from_utf8(body.to_vec()) {
                                     Ok(peers_list) => {
-                                        let mut peers: Vec<String> = Vec::new();
+                                        let mut peers: Vec<(String, bool)> = Vec::new();
                                         let mut current = String::new();
                                         for i in peers_list.chars() {
                                             if i == '\n' {
diff --git a/client-network/src/messages_structure.rs b/client-network/src/messages_structure.rs
index 94c7a16..f31e69f 100644
--- a/client-network/src/messages_structure.rs
+++ b/client-network/src/messages_structure.rs
@@ -15,6 +15,8 @@ pub struct HandshakeMessage {
     pub signature: Vec<u8>,
 }
 
+pub struct NatTraversal {}
+
 impl UDPMessage {
     pub fn ping(id: u32) -> UDPMessage {
         UDPMessage {
diff --git a/todo.md b/todo.md
index d978db1..60d8a40 100644
--- a/todo.md
+++ b/todo.md
@@ -1,8 +1,11 @@
-# Todo : 
+# Todo
+
 ## peer discovery
-- get rsquest to the uri /peers/ 
+
+- get rsquest to the uri /peers/
 
 ## registration with the server
+
 - generation of the cryptographic key OK
 - put request to the uri (check if the peer is already connected) OK
 - udp handshakes OK
@@ -10,11 +13,13 @@
 - get request to the uri /peers/key/addresses OK
 
 ## handshake
+
 - handshake structure OK
 - 5min timeout after handshake
 - matain connection every 4 min
 
 ## data transfer
+
 - request structure
 - root/root reply structure
 - datum/nodatum and datum structures
@@ -22,6 +27,13 @@
 - setting in gui to act as a relay
 - chunk, directory, big, bigdirectory structures
 
+## nat traversal
+
+- make hello and helloreply messages set the first extension bit to announce that peer is available for nat traversal
+- implement actual nat traversal requests
+- implement nat traversal :
+  - if hello/helloreply doesnt work with a peer, find a peer that supports nat traversal (server in priority) then begin protocol
+
 fonctionnalités :
 
 s'enregistrer avec le serveur OK