Support for the ALPN extension of the TLS protocol for Client and Server

dart/runtime/bin/secure_socket_patch.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 patch class SecureSocket {
   /* patch */ factory SecureSocket._(RawSecureSocket rawSocket) =>
       new _SecureSocket(rawSocket);
 
   /* patch */ static void initialize({String database,
                                       String password,
@@ skipping 24 matching lines @@
                      requestClientCertificate: requestClientCertificate,
                      requireClientCertificate: requireClientCertificate);
   }
 
   X509Certificate get peerCertificate {
     if (_raw == null) {
      throw new StateError("peerCertificate called on destroyed SecureSocket");
     }
     return _raw.peerCertificate;
   }
+
+  String get selectedProtocol {
+    if (_raw == null) {
+     throw new StateError("selectedProtocol called on destroyed SecureSocket");
+    }
+    return _raw.selectedProtocol;
+  }
 }
 
 
 /**
  * _SecureFilterImpl wraps a filter that encrypts and decrypts data travelling
  * over an encrypted socket.  The filter also handles the handshaking
  * and certificate verification.
  *
  * The filter exposes its input and output buffers as Dart objects that
  * are backed by an external C array of bytes, so that both Dart code and
@@ skipping 16 matching lines @@
     }
   }
 
   void connect(String hostName,
                Uint8List sockaddrStorage,
                int port,
                bool is_server,
                String certificateName,
                bool requestClientCertificate,
                bool requireClientCertificate,
-               bool sendClientCertificate) native "SecureSocket_Connect";
+               bool sendClientCertificate,
+               Uint8List protocols) native "SecureSocket_Connect";
 
   void destroy() {
     buffers = null;
     _destroy();
   }
 
   void _destroy() native "SecureSocket_Destroy";
 
   void handshake() native "SecureSocket_Handshake";
 
+  String selectedProtocol() native "SecureSocket_GetSelectedProtocol";
+
   void renegotiate(bool useSessionCache,
                    bool requestClientCertificate,
                    bool requireClientCertificate)
       native "SecureSocket_Renegotiate";
+
   void init() native "SecureSocket_Init";
 
   X509Certificate get peerCertificate native "SecureSocket_PeerCertificate";
 
   void registerBadCertificateCallback(Function callback)
       native "SecureSocket_RegisterBadCertificateCallback";
 
   void registerHandshakeCompleteCallback(Function handshakeCompleteHandler)
       native "SecureSocket_RegisterHandshakeCompleteCallback";
 
   // This is a security issue, as it exposes a raw pointer to Dart code.
   int _pointer() native "SecureSocket_FilterPointer";
 
   List<_ExternalBuffer> buffers;
 }