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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_H_ | |
| 6 #define NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include <string> | |
| 10 | |
| 11 #include "base/basictypes.h" | |
| 12 #include "base/memory/scoped_ptr.h" | |
| 13 #include "googleurl/src/gurl.h" | |
| 14 #include "net/base/net_api.h" | |
| 15 | |
| 16 namespace net { | |
| 17 | |
| 18 class HttpResponseHeaders; | |
| 19 | |
| 20 class NET_TEST WebSocketHandshake { | |
| 21 public: | |
| 22 static const int kWebSocketPort; | |
| 23 static const int kSecureWebSocketPort; | |
| 24 | |
| 25 enum Mode { | |
| 26 MODE_INCOMPLETE, MODE_NORMAL, MODE_FAILED, MODE_CONNECTED | |
| 27 }; | |
| 28 WebSocketHandshake(const GURL& url, | |
| 29 const std::string& origin, | |
| 30 const std::string& location, | |
| 31 const std::string& protocol); | |
| 32 virtual ~WebSocketHandshake(); | |
| 33 | |
| 34 bool is_secure() const; | |
| 35 // Creates the client handshake message from |this|. | |
| 36 virtual std::string CreateClientHandshakeMessage(); | |
| 37 | |
| 38 // Reads server handshake message in |len| of |data|, updates |mode_| and | |
| 39 // returns number of bytes of the server handshake message. | |
| 40 // Once connection is established, |mode_| will be MODE_CONNECTED. | |
| 41 // If connection establishment failed, |mode_| will be MODE_FAILED. | |
| 42 // Returns negative if the server handshake message is incomplete. | |
| 43 virtual int ReadServerHandshake(const char* data, size_t len); | |
| 44 Mode mode() const { return mode_; } | |
| 45 | |
| 46 protected: | |
| 47 std::string GetResourceName() const; | |
| 48 std::string GetHostFieldValue() const; | |
| 49 std::string GetOriginFieldValue() const; | |
| 50 | |
| 51 // Gets the value of the specified header. | |
| 52 // It assures only one header of |name| in |headers|. | |
| 53 // Returns true iff single header of |name| is found in |headers| | |
| 54 // and |value| is filled with the value. | |
| 55 // Returns false otherwise. | |
| 56 static bool GetSingleHeader(const HttpResponseHeaders& headers, | |
| 57 const std::string& name, | |
| 58 std::string* value); | |
| 59 | |
| 60 GURL url_; | |
| 61 // Handshake messages that the client is going to send out. | |
| 62 std::string origin_; | |
| 63 std::string location_; | |
| 64 std::string protocol_; | |
| 65 | |
| 66 Mode mode_; | |
| 67 | |
| 68 // Handshake messages that server sent. | |
| 69 std::string ws_origin_; | |
| 70 std::string ws_location_; | |
| 71 std::string ws_protocol_; | |
| 72 | |
| 73 private: | |
| 74 friend class WebSocketHandshakeTest; | |
| 75 | |
| 76 class NET_TEST Parameter { | |
| 77 public: | |
| 78 static const int kKey3Size = 8; | |
| 79 static const int kExpectedResponseSize = 16; | |
| 80 Parameter(); | |
| 81 ~Parameter(); | |
| 82 | |
| 83 void GenerateKeys(); | |
| 84 const std::string& GetSecWebSocketKey1() const { return key_1_; } | |
| 85 const std::string& GetSecWebSocketKey2() const { return key_2_; } | |
| 86 const std::string& GetKey3() const { return key_3_; } | |
| 87 | |
| 88 void GetExpectedResponse(uint8* expected) const; | |
| 89 | |
| 90 private: | |
| 91 friend class WebSocketHandshakeTest; | |
| 92 | |
| 93 // Set random number generator. |rand| should return a random number | |
| 94 // between min and max (inclusive). | |
| 95 static void SetRandomNumberGenerator( | |
| 96 uint32 (*rand)(uint32 min, uint32 max)); | |
| 97 void GenerateSecWebSocketKey(uint32* number, std::string* key); | |
| 98 void GenerateKey3(); | |
| 99 | |
| 100 uint32 number_1_; | |
| 101 uint32 number_2_; | |
| 102 std::string key_1_; | |
| 103 std::string key_2_; | |
| 104 std::string key_3_; | |
| 105 | |
| 106 static uint32 (*rand_)(uint32 min, uint32 max); | |
| 107 }; | |
| 108 | |
| 109 virtual bool ProcessHeaders(const HttpResponseHeaders& headers); | |
| 110 virtual bool CheckResponseHeaders() const; | |
| 111 | |
| 112 scoped_ptr<Parameter> parameter_; | |
| 113 | |
| 114 DISALLOW_COPY_AND_ASSIGN(WebSocketHandshake); | |
| 115 }; | |
| 116 | |
| 117 } // namespace net | |
| 118 | |
| 119 #endif // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_H_ | |
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