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/*
* Copyright (C) 2016 Canon Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions
* are required to be 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.
* 3. Neither the name of Canon 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 CANON INC. AND ITS 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 CANON INC. AND ITS 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 "ExceptionOr.h"
#include "HTTPHeaderMap.h"
#include <wtf/HashTraits.h>
#include <wtf/Variant.h>
#include <wtf/Vector.h>
namespace WebCore {
class FetchHeaders : public RefCounted<FetchHeaders> {
public:
enum class Guard {
None,
Immutable,
Request,
RequestNoCors,
Response
};
using Init = Variant<Vector<Vector<String>>, Vector<WTF::KeyValuePair<String, String>>>;
static ExceptionOr<Ref<FetchHeaders>> create(std::optional<Init>&&);
static Ref<FetchHeaders> create(Guard guard = Guard::None) { return adoptRef(*new FetchHeaders { guard }); }
static Ref<FetchHeaders> create(const FetchHeaders& headers) { return adoptRef(*new FetchHeaders { headers }); }
ExceptionOr<void> append(const String& name, const String& value);
ExceptionOr<void> remove(const String&);
ExceptionOr<String> get(const String&) const;
ExceptionOr<bool> has(const String&) const;
ExceptionOr<void> set(const String& name, const String& value);
ExceptionOr<void> fill(const Init&);
ExceptionOr<void> fill(const FetchHeaders&);
void fill(const FetchHeaders*);
void filterAndFill(const HTTPHeaderMap&, Guard);
String fastGet(HTTPHeaderName name) const { return m_headers.get(name); }
void fastSet(HTTPHeaderName name, const String& value) { m_headers.set(name, value); }
class Iterator {
public:
explicit Iterator(FetchHeaders&);
std::optional<WTF::KeyValuePair<String, String>> next();
private:
Ref<FetchHeaders> m_headers;
size_t m_currentIndex { 0 };
Vector<String> m_keys;
};
Iterator createIterator() { return Iterator { *this }; }
const HTTPHeaderMap& internalHeaders() const { return m_headers; }
void setGuard(Guard);
private:
explicit FetchHeaders(Guard guard, HTTPHeaderMap&& headers = { });
FetchHeaders(const FetchHeaders&);
Guard m_guard;
HTTPHeaderMap m_headers;
};
inline FetchHeaders::FetchHeaders(Guard guard, HTTPHeaderMap&& headers)
: m_guard(guard)
, m_headers(WTFMove(headers))
{
}
inline FetchHeaders::FetchHeaders(const FetchHeaders& other)
: RefCounted<FetchHeaders>()
, m_guard(other.m_guard)
, m_headers(other.m_headers)
{
}
inline void FetchHeaders::setGuard(Guard guard)
{
ASSERT(!m_headers.size());
m_guard = guard;
}
} // namespace WebCore
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