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      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 Computer, 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 "platform/weborigin/KURL.h"
     33 #include "platform/weborigin/SecurityOrigin.h"
     34 #include "wtf/RefPtr.h"
     35 
     36 namespace blink {
     37 
     38 struct 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 
     58         if (a == b)
     59             return true;
     60 
     61         if (!a->isSameSchemeHostPort(b))
     62             return false;
     63 
     64         if (a->domainWasSetInDOM() != b->domainWasSetInDOM())
     65             return false;
     66 
     67         if (a->domainWasSetInDOM() && a->domain() != b->domain())
     68             return false;
     69 
     70         return true;
     71     }
     72     static bool equal(SecurityOrigin* a, const RefPtr<SecurityOrigin>& b)
     73     {
     74         return equal(a, b.get());
     75     }
     76     static bool equal(const RefPtr<SecurityOrigin>& a, SecurityOrigin* b)
     77     {
     78         return equal(a.get(), b);
     79     }
     80     static bool equal(const RefPtr<SecurityOrigin>& a, const RefPtr<SecurityOrigin>& b)
     81     {
     82         return equal(a.get(), b.get());
     83     }
     84 
     85     static const bool safeToCompareToEmptyOrDeleted = false;
     86 };
     87 
     88 } // namespace blink
     89 
     90 namespace WTF {
     91 
     92 template<> struct DefaultHash<RefPtr<blink::SecurityOrigin> > {
     93     typedef blink::SecurityOriginHash Hash;
     94 };
     95 
     96 } // namespace WTF
     97 
     98 #endif // SecurityOriginHash_h
     99