Initial web socket server implementation

tests/standalone/src/io/WebSocketTest.dart

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file

[Mads Ager (google), 2012/04/25 10:41:55]

Since this test is not finished yet, maybe you should leave it out of the commit
and only put it in when it is ready to be run?

[Søren Gjesse, 2012/04/25 13:57:14]

I will do that.

+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+//
+
+#import("dart:io");
+
+class Server {
+  Server() {
+    server = new HttpServer();
+    server.listen("0.0.0.0", 1234);

[Anders Johnsen, 2012/04/24 12:20:47]

Could you use '0' for port, so we don't conflict with other tests / programs?

[Søren Gjesse, 2012/04/25 13:57:14]

Sure - I had the fixed port for testing with Chrome and Firefox.

+    port = server.port;
+    server.onError = (e) {
+      Expect.fail("No server errors expected: $e");
+    };
+  }
+
+  void addHandler(Function matcher, handler) {
+    server.addRequestHandler(matcher, handler);
+  }
+
+  void set defaultHandler(handler) {
+    server.defaultRequestHandler = handler;
+  }
+
+  void close() {
+    server.close();
+  }
+
+  int port;
+  HttpServer server;
+}
+
+void test() {
+  Server server = new Server();
+
+  // Create a web socket handler and set is as the HTTP server default
+  // handler.
+  WebSocketHandler wsHandler = new WebSocketHandler();
+  wsHandler.onConnection = (WebSocketConnection conn) {
+    var count = 0;
+    print("New web socket connection");
+    conn.onMessage = (Object message) {
+      print("Web socket message: [$message]");
+      conn.send(message);
+      count++;
+      if (count == 4) conn.close(3000, "Bye!");
+    };
+    conn.onClosed =
+        (int status, String reason) => print("Closing $status $reason");
+    conn.onError = (e) => print("Web socket error $e");
+  };
+  server.defaultHandler = wsHandler.onRequest;
+}
+
+main() {
+  test();
+}