1/*
2 * Copyright (C) 2008 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
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 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef SecurityOriginHash_h
30#define SecurityOriginHash_h
31
32#include "URL.h"
33#include "SecurityOrigin.h"
34#include <wtf/RefPtr.h>
35
36namespace WebCore {
37
38struct SecurityOriginHash {
39    static unsigned hash(SecurityOrigin* origin)
40    {
41        unsigned hashCodes[3] = {
42            origin->protocol().impl() ? origin->protocol().impl()->hash() : 0,
43            origin->host().impl() ? origin->host().impl()->hash() : 0,
44            origin->port()
45        };
46        return StringHasher::hashMemory<sizeof(hashCodes)>(hashCodes);
47    }
48    static unsigned hash(const RefPtr<SecurityOrigin>& origin)
49    {
50        return hash(origin.get());
51    }
52
53    static bool equal(SecurityOrigin* a, SecurityOrigin* b)
54    {
55        if (!a || !b)
56            return a == b;
57        return a->isSameSchemeHostPort(b);
58    }
59    static bool equal(SecurityOrigin* a, const RefPtr<SecurityOrigin>& b)
60    {
61        return equal(a, b.get());
62    }
63    static bool equal(const RefPtr<SecurityOrigin>& a, SecurityOrigin* b)
64    {
65        return equal(a.get(), b);
66    }
67    static bool equal(const RefPtr<SecurityOrigin>& a, const RefPtr<SecurityOrigin>& b)
68    {
69        return equal(a.get(), b.get());
70    }
71
72    static const bool safeToCompareToEmptyOrDeleted = false;
73};
74
75} // namespace WebCore
76
77namespace WTF {
78    template<typename> struct DefaultHash;
79
80    template<> struct DefaultHash<RefPtr<WebCore::SecurityOrigin>> {
81        typedef WebCore::SecurityOriginHash Hash;
82    };
83
84} // namespace WTF
85
86#endif // SecurityOriginHash_h
87