Add some web socket goodness.

source/app.d

@@ -19,10 +19,21 @@ import vibe.d;
 
 final class Room {
     string[] messages;
+    ManualEvent messageEvent;
+
+    this() {
+        messageEvent = createManualEvent();
+    }
 
     void addMessage(string nick, string message) {
         messages ~= nick ~ ": " ~ message;
     }
+
+    void waitForMessage(size_t next_message) {
+        while (messages.length <= next_message) {
+            messageEvent.wait();
+        }
+    }
 }
 
 final class WebChat {
@@ -51,6 +62,29 @@ final class WebChat {
         redirect("room?room=" ~ room.urlEncode ~ "&nick=" ~ nick.urlEncode);
     }
 
+    // /ws?room=...&nick=...
+    void getWS(string room, string nick, scope WebSocket socket) {
+        auto r = getOrCreateRoom(room);
+        auto writer = runTask({
+            auto next_message = r.messages.length;
+            while (socket.connected) {
+                while (next_message < r.messages.length) {
+                    socket.send(r.messages[next_message++]);
+                }
+                r.waitForMessage(next_message);
+            }
+        });
+
+        while (socket.waitForData) {
+            auto message = socket.receiveText();
+            if (message.length) {
+                r.addMessage(nick, message);
+            }
+        }
+
+        writer.join();
+    }
+
     private Room getOrCreateRoom(string room) {
         if (auto pr = room in rooms) return *pr;
         return rooms[room] = new Room;
@@ -67,7 +101,7 @@ shared static this()
 
 	auto settings = new HTTPServerSettings;
 	settings.port = 8083;
-	settings.bindAddresses = ["::1", "127.0.0.1"];
+	// settings.bindAddresses = ["::", "0.0.0.0"];
 	listenHTTP(settings, router);
 
 	logInfo("Please open http://127.0.0.1:%d/ in your browser.".format(settings.port));