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/*
* Copyright (C) 2021-2022 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/text/StringHash.h>
#include <wtf/text/WTFString.h>
namespace RFC8941 {
class Token {
public:
explicit Token(String&& token) : m_token(WTFMove(token)) { }
const String& string() const { return m_token; }
private:
String m_token;
};
using BareItem = std::variant<String, Token, bool>; // FIXME: The specification supports more BareItem types.
class Parameters {
public:
Parameters() = default;
explicit Parameters(HashMap<String, BareItem>&& parameters)
: m_parameters(WTFMove(parameters)) { }
const HashMap<String, BareItem>& map() const { return m_parameters; }
template<typename T> const T* getIf(ASCIILiteral key) const;
private:
HashMap<String, BareItem> m_parameters;
};
template<typename T> const T* Parameters::getIf(ASCIILiteral key) const
{
auto it = m_parameters.find<HashTranslatorASCIILiteral>(key);
if (it == m_parameters.end())
return nullptr;
return std::get_if<T>(&(it->value));
}
using InnerList = Vector<std::pair<BareItem, Parameters>>;
using ItemOrInnerList = std::variant<BareItem, InnerList>;
WEBCORE_EXPORT std::optional<std::pair<BareItem, Parameters>> parseItemStructuredFieldValue(StringView header);
WEBCORE_EXPORT std::optional<HashMap<String, std::pair<ItemOrInnerList, Parameters>>> parseDictionaryStructuredFieldValue(StringView header);
} // namespace RFC8941
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