Implement new websocket handshake based on draft-hixie-thewebsocketprotocol-76

net/websockets/websocket_handshake_draft75.h

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_DRAFT75_H_
+#define NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_DRAFT75_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "googleurl/src/gurl.h"
+#include "net/websockets/websocket_handshake.h"
+
+namespace net {
+
+class HttpResponseHeaders;
+
+class WebSocketHandshakeDraft75 : public WebSocketHandshake {
+ public:
+  static const int kWebSocketPort;
+  static const int kSecureWebSocketPort;
+  static const char kServerHandshakeHeader[];
+  static const size_t kServerHandshakeHeaderLength;
+  static const char kUpgradeHeader[];
+  static const size_t kUpgradeHeaderLength;
+  static const char kConnectionHeader[];
+  static const size_t kConnectionHeaderLength;
+
+  WebSocketHandshakeDraft75(const GURL& url,
+                            const std::string& origin,
+                            const std::string& location,
+                            const std::string& protocol);
+  virtual ~WebSocketHandshakeDraft75();
+
+  // Creates the client handshake message from |this|.
+  virtual std::string CreateClientHandshakeMessage();
+
+  // Reads server handshake message in |len| of |data|, updates |mode_| and
+  // returns number of bytes of the server handshake message.
+  // Once connection is established, |mode_| will be MODE_CONNECTED.
+  // If connection establishment failed, |mode_| will be MODE_FAILED.
+  // Returns negative if the server handshake message is incomplete.
+  virtual int ReadServerHandshake(const char* data, size_t len);
+
+ private:
+  // Processes server handshake message, parsed as |headers|, and updates
+  // |ws_origin_|, |ws_location_| and |ws_protocol_|.
+  // Returns true if it's ok.
+  // Returns false otherwise (e.g. duplicate WebSocket-Origin: header, etc.)
+  virtual bool ProcessHeaders(const HttpResponseHeaders& headers);
+
+  // Checks |ws_origin_|, |ws_location_| and |ws_protocol_| are valid
+  // against |origin_|, |location_| and |protocol_|.
+  // Returns true if it's ok.
+  // Returns false otherwise (e.g. origin mismatch, etc.)
+  virtual bool CheckResponseHeaders() const;
+
+  DISALLOW_COPY_AND_ASSIGN(WebSocketHandshakeDraft75);
+};
+
+}  // namespace net
+
+#endif  // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_DRAFT75_H_