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* const 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* const kSecWebSocketProtocol; 32 33 // "Sec-WebSocket-Extensions" 34 extern const char* const kSecWebSocketExtensions; 35 36 // "Sec-WebSocket-Key" 37 extern const char* const kSecWebSocketKey; 38 39 // "Sec-WebSocket-Accept" 40 extern const char* const kSecWebSocketAccept; 41 42 // "Sec-WebSocket-Version" 43 extern const char* const 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* const kSupportedVersion; 49 50 // "Upgrade" 51 extern const char* const kUpgrade; 52 53 // "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" as defined in section 4.1 of 54 // RFC6455. 55 extern const char* const kWebSocketGuid; 56 57 // Colon-prefixed lowercase headers for SPDY3. 58 59 // ":sec-websocket-protocol" 60 extern const char* const kSecWebSocketProtocolSpdy3; 61 62 // ":sec-websocket-extensions" 63 extern const char* const 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* const kSecWebSocketKeyLowercase; 75 76 // "sec-websocket-version" 77 extern const char* const kSecWebSocketVersionLowercase; 78 79 // "upgrade" 80 extern const char* const 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* const kWebSocketLowercase; 85 86 } // namespace websockets 87 } // namespace net 88 89 #endif // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_ 90
