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 "KURL.h" 33 #include "SecurityOrigin.h" 34 #include <wtf/RefPtr.h> 35 36 namespace WebCore { 37 38 struct SecurityOriginHash { hashSecurityOriginHash39 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 } hashSecurityOriginHash48 static unsigned hash(const RefPtr<SecurityOrigin>& origin) 49 { 50 return hash(origin.get()); 51 } 52 equalSecurityOriginHash53 static bool equal(SecurityOrigin* a, SecurityOrigin* b) 54 { 55 // FIXME: The hash function above compares three specific fields. 56 // This code to compare those three specific fields should be moved here from 57 // SecurityOrigin as mentioned in SecurityOrigin.h so we don't accidentally change 58 // equal without changing hash to match it. 59 if (!a || !b) 60 return a == b; 61 return a->equal(b); 62 } equalSecurityOriginHash63 static bool equal(SecurityOrigin* a, const RefPtr<SecurityOrigin>& b) 64 { 65 return equal(a, b.get()); 66 } equalSecurityOriginHash67 static bool equal(const RefPtr<SecurityOrigin>& a, SecurityOrigin* b) 68 { 69 return equal(a.get(), b); 70 } equalSecurityOriginHash71 static bool equal(const RefPtr<SecurityOrigin>& a, const RefPtr<SecurityOrigin>& b) 72 { 73 return equal(a.get(), b.get()); 74 } 75 76 static const bool safeToCompareToEmptyOrDeleted = false; 77 }; 78 79 } // namespace WebCore 80 81 #endif 82