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1 // Copyright 2013 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 // A set of common constants that are needed for the WebSocket handshake. | |
6 // In general, you should prefer using these constants to literal strings, | |
7 // except in tests. | |
8 // | |
9 // These constants cannot be used in files that are compiled on iOS, because | |
10 // this file is not compiled on iOS. | |
11 | |
12 #ifndef NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_ | |
13 #define NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_ | |
14 | |
15 #include "base/basictypes.h" | |
16 | |
17 // This file plases constants inside the ::net::websockets namespace to avoid | |
18 // risk of collisions with other symbols in libnet. | |
19 namespace net { | |
20 namespace websockets { | |
21 | |
22 // "HTTP/1.1" | |
23 // RFC6455 only requires HTTP/1.1 "or better" but in practice an HTTP version | |
24 // other than 1.1 should not occur in a WebSocket handshake. | |
25 extern const char kHttpProtocolVersion[]; | |
26 | |
27 // The Sec-WebSockey-Key challenge is 16 random bytes, base64 encoded. | |
28 extern const size_t kRawChallengeLength; | |
29 | |
30 // "Sec-WebSocket-Protocol" | |
31 extern const char kSecWebSocketProtocol[]; | |
32 | |
33 // "Sec-WebSocket-Extensions" | |
34 extern const char kSecWebSocketExtensions[]; | |
35 | |
36 // "Sec-WebSocket-Key" | |
37 extern const char kSecWebSocketKey[]; | |
38 | |
39 // "Sec-WebSocket-Accept" | |
40 extern const char kSecWebSocketAccept[]; | |
41 | |
42 // "Sec-WebSocket-Version" | |
43 extern const char kSecWebSocketVersion[]; | |
44 | |
45 // This implementation only supports one version of the WebSocket protocol, | |
46 // "13", as specified in RFC6455. If support for multiple versions is added in | |
47 // future, it will probably no longer be worth having a constant for this. | |
48 extern const char kSupportedVersion[]; | |
49 | |
50 // "Upgrade" | |
51 extern const char kUpgrade[]; | |
52 | |
53 // "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" as defined in section 4.1 of | |
54 // RFC6455. | |
55 extern const char kWebSocketGuid[]; | |
56 | |
57 // Colon-prefixed lowercase headers for SPDY3. | |
58 | |
59 // ":sec-websocket-protocol" | |
60 extern const char kSecWebSocketProtocolSpdy3[]; | |
61 | |
62 // ":sec-websocket-extensions" | |
63 extern const char kSecWebSocketExtensionsSpdy3[]; | |
64 | |
65 // Some parts of the code require lowercase versions of the header names in | |
66 // order to do case-insensitive comparisons, or because of SPDY. | |
67 // "sec-websocket-protocol" | |
68 extern const char* const kSecWebSocketProtocolLowercase; | |
69 | |
70 // "sec-websocket-extensions" | |
71 extern const char* const kSecWebSocketExtensionsLowercase; | |
72 | |
73 // "sec-webSocket-key" | |
74 extern const char kSecWebSocketKeyLowercase[]; | |
75 | |
76 // "sec-websocket-version" | |
77 extern const char kSecWebSocketVersionLowercase[]; | |
78 | |
79 // "upgrade" | |
80 extern const char kUpgradeLowercase[]; | |
81 | |
82 // "websocket", as used in the "Upgrade:" header. This is always lowercase | |
83 // (except in obsolete versions of the protocol). | |
84 extern const char kWebSocketLowercase[]; | |
85 | |
86 } // namespace websockets | |
87 } // namespace net | |
88 | |
89 #endif // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_ | |
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