Limit name length to 32 characters

Author: R1tschY

src/lib.rs

@@ -50,6 +50,8 @@ pub mod ports;
 
 pub mod remote;
 
+mod utils;
+
 #[cfg(test)]
 mod tests {
     use env_logger::WriteStyle;

src/player.rs

@@ -9,6 +9,7 @@ use uactor::blocking::Addr;
 use crate::game_server::{GameServerAddr, GameServerMessage};
 use crate::remote::{RemoteConnection, RemoteMessage};
 use crate::room::{GamePlayerMessage, RoomAddr, RoomMessage};
+use crate::utils::{char_len, char_trim};
 
 const TO_BE_CREATED: &str = "<to be created>";
 
@@ -135,6 +136,14 @@ impl Player {
                     .await;
             }
             RemoteMessage::UpdatePlayer { voter, name } => {
+                let name = name.map(|name| {
+                    if char_len(&name) >= 32 {
+                        char_trim(&name, 32)
+                    } else {
+                        name
+                    }
+                });
+
                 debug!(
                     "{}: Update player: voter={:?} name={:?}",
                     self.id, &voter, &name

src/utils.rs

@@ -0,0 +1,8 @@
+pub fn char_len(name: &str) -> usize {
+    name.encode_utf16().count()
+}
+
+pub fn char_trim(name: &str, n: usize) -> String {
+    let trimmed: Vec<u16> = name.encode_utf16().take(n).collect();
+    String::from_utf16_lossy(trimmed.as_ref())
+}