1/*
2 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
3 * Copyright (C) 2009 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef HTTPHeaderMap_h
28#define HTTPHeaderMap_h
29
30#include "platform/PlatformExport.h"
31#include "wtf/HashMap.h"
32#include "wtf/PassOwnPtr.h"
33#include "wtf/Vector.h"
34#include "wtf/text/AtomicString.h"
35#include "wtf/text/AtomicStringHash.h"
36#include "wtf/text/StringHash.h"
37#include <utility>
38
39namespace blink {
40
41typedef Vector<std::pair<String, String> > CrossThreadHTTPHeaderMapData;
42
43// FIXME: Not every header fits into a map. Notably, multiple Set-Cookie header fields are needed to set multiple cookies.
44class PLATFORM_EXPORT HTTPHeaderMap {
45public:
46    HTTPHeaderMap();
47    ~HTTPHeaderMap();
48
49    // Gets a copy of the data suitable for passing to another thread.
50    PassOwnPtr<CrossThreadHTTPHeaderMapData> copyData() const;
51
52    void adopt(PassOwnPtr<CrossThreadHTTPHeaderMapData>);
53
54    typedef HashMap<AtomicString, AtomicString, CaseFoldingHash> MapType;
55    typedef MapType::AddResult AddResult;
56    typedef MapType::const_iterator const_iterator;
57
58    size_t size() const { return m_headers.size(); }
59    const_iterator begin() const { return m_headers.begin(); }
60    const_iterator end() const { return m_headers.end(); }
61    const_iterator find(const AtomicString &k) const { return m_headers.find(k); }
62    void clear() { m_headers.clear(); }
63    const AtomicString& get(const AtomicString& k) const { return m_headers.get(k); }
64    AddResult set(const AtomicString& k, const AtomicString& v) { return m_headers.set(k, v); }
65    AddResult add(const AtomicString& k, const AtomicString& v) { return m_headers.add(k, v); }
66    void remove(const AtomicString& k) { m_headers.remove(k); }
67    bool operator!=(const HTTPHeaderMap& rhs) const { return m_headers != rhs.m_headers; }
68    bool operator==(const HTTPHeaderMap& rhs) const { return m_headers == rhs.m_headers; }
69
70    // Alternate accessors that are faster than converting the char* to AtomicString first.
71    bool contains(const char*) const;
72    const AtomicString& get(const char*) const;
73    AddResult add(const char* name, const AtomicString& value);
74
75private:
76    HashMap<AtomicString, AtomicString, CaseFoldingHash> m_headers;
77};
78
79} // namespace blink
80
81#endif // HTTPHeaderMap_h
82