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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <wtf/HashMap.h>
#include <wtf/text/StringHash.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class WebSocketExtensionParser {
public:
// FIXME: What character encoding are we parsing? Specify LChar, char8_t, UChar, or something else here.
explicit WebSocketExtensionParser(std::span<const uint8_t> data)
: m_data(data)
{
}
bool finished();
bool parsedSuccessfully();
// FIXME: What character encoding are we parsing? Specify LChar, char8_t, UChar, or something else here.
bool parseExtension(String& extensionToken, HashMap<String, String>& parameters);
private:
const String& currentToken() { return m_currentToken; }
// The following member functions basically follow the grammar defined
// in Section 2.2 of RFC 2616.
bool consumeToken();
bool consumeQuotedString();
bool consumeQuotedStringOrToken();
bool consumeCharacter(char);
void skipSpaces();
std::span<const uint8_t> m_data;
String m_currentToken;
bool m_didFailParsing { false };
};
} // namespace WebCore
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