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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 {
     35     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 
     52     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