Fix username validation and the leave signal

Author: Taulim

src/client/public/index.js

@@ -76,7 +76,7 @@ $(function onload() {
 			}
 			case 'join': {
 				const username = objData.d;
-				chatWriteLine(`User connect (${username}).`);
+				chatWriteLine(`User connect (${username})`);
 				break;
 			}
 			case 'chat': {
@@ -87,7 +87,7 @@ $(function onload() {
 			}
 			case 'leave': {
 				const username = objData.d;
-				chatWriteLine(`User disconnect (${username}).`);
+				chatWriteLine(`User disconnect (${username})`);
 				break;
 			}
 			default: {

src/server/WebSocket.ts

@@ -41,7 +41,7 @@ export async function HandleWSConn(pWebSocket: WebSocket): Promise<void> {
 				switch (objEvent.h) {
 					case 'join': {
 						const _name = objEvent.d;
-						if (/^[a-zA-Z0-1]+$/i.test(_name)) {
+						if (/^[a-zA-Z0-9]+$/i.test(_name)) {
 							_conn.state = true;
 							_conn.name = objEvent.d;
 							await BroadcastJoin(_connInfo);
@@ -52,9 +52,9 @@ export async function HandleWSConn(pWebSocket: WebSocket): Promise<void> {
 						break;
 					}
 					case 'leave': {
+						await BroadcastLeave(_connInfo);
 						_conn.name = '';
 						_conn.state = false;
-						await BroadcastLeave(_connInfo);
 						await RespondLeave(_connInfo, 'OK');
 						break;
 					}