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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// A set of common constants that are needed for the WebSocket handshake.
// In general, you should prefer using these constants to literal strings,
// except in tests.
//
// These constants cannot be used in files that are compiled on iOS, because
// this file is not compiled on iOS.
#ifndef NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_
#define NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_
#include <stddef.h>
#include "net/base/net_export.h"
// This file plases constants inside the ::net::websockets namespace to avoid
// risk of collisions with other symbols in libnet.
namespace net::websockets {
// "HTTP/1.1"
// RFC6455 only requires HTTP/1.1 "or better" but in practice an HTTP version
// other than 1.1 should not occur in a WebSocket handshake.
extern const char kHttpProtocolVersion[];
// The Sec-WebSockey-Key challenge is 16 random bytes, base64 encoded.
inline constexpr size_t kRawChallengeLength = 16;
// "Sec-WebSocket-Protocol"
extern const char kSecWebSocketProtocol[];
// "Sec-WebSocket-Extensions"
extern const char kSecWebSocketExtensions[];
// "Sec-WebSocket-Key"
extern const char kSecWebSocketKey[];
// "Sec-WebSocket-Accept"
extern const char kSecWebSocketAccept[];
// "Sec-WebSocket-Version"
extern const char kSecWebSocketVersion[];
// This implementation only supports one version of the WebSocket protocol,
// "13", as specified in RFC6455. If support for multiple versions is added in
// future, it will probably no longer be worth having a constant for this.
extern const char kSupportedVersion[];
// "Upgrade"
extern const char kUpgrade[];
// "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" as defined in section 4.1 of
// RFC6455.
extern const char NET_EXPORT kWebSocketGuid[];
// "websocket", as used in the "Upgrade:" header. This is always lowercase
// (except in obsolete versions of the protocol).
extern const char kWebSocketLowercase[];
} // namespace net::websockets
#endif // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_
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