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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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