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1 /*
2  * Copyright (C) 2009 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  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef ProtectionSpaceHash_h
27 #define ProtectionSpaceHash_h
28 
29 #include "ProtectionSpace.h"
30 #include <wtf/HashTraits.h>
31 
32 namespace WebCore {
33 
34 struct ProtectionSpaceHash {
hashProtectionSpaceHash35     static unsigned hash(const ProtectionSpace& protectionSpace)
36     {
37         unsigned hashCodes[5] = {
38             protectionSpace.host().impl() ? protectionSpace.host().impl()->hash() : 0,
39             protectionSpace.port(),
40             protectionSpace.serverType(),
41             protectionSpace.authenticationScheme(),
42             protectionSpace.realm().impl() ? protectionSpace.realm().impl()->hash() : 0
43         };
44 
45         unsigned codeCount = sizeof(hashCodes);
46         // Ignore realm for proxies.
47         if (protectionSpace.isProxy())
48             codeCount -= sizeof(hashCodes[0]);
49         return StringHasher::hashMemory(hashCodes, codeCount);
50     }
51 
equalProtectionSpaceHash52     static bool equal(const ProtectionSpace& a, const ProtectionSpace& b) { return a == b; }
53     static const bool safeToCompareToEmptyOrDeleted = false;
54 };
55 
56 } // namespace WebCore
57 
58 namespace WTF {
59 
60     template<> struct HashTraits<WebCore::ProtectionSpace> : SimpleClassHashTraits<WebCore::ProtectionSpace> { };
61 
62     template<typename T> struct DefaultHash;
63     template<> struct DefaultHash<WebCore::ProtectionSpace> {
64         typedef WebCore::ProtectionSpaceHash Hash;
65     };
66 
67 } // namespace WTF
68 
69 
70 #endif // ProtectionSpaceHash_h
71