1 /* 2 * Copyright (C) 2009 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "platform/weborigin/OriginAccessEntry.h" 33 34 #include "platform/weborigin/SecurityOrigin.h" 35 #include "public/platform/Platform.h" 36 #include "public/platform/WebPublicSuffixList.h" 37 38 namespace WebCore { 39 40 OriginAccessEntry::OriginAccessEntry(const String& protocol, const String& host, SubdomainSetting subdomainSetting, IPAddressSetting ipAddressSetting) 41 : m_protocol(protocol.lower()) 42 , m_host(host.lower()) 43 , m_subdomainSettings(subdomainSetting) 44 , m_ipAddressSettings(ipAddressSetting) 45 , m_hostIsPublicSuffix(false) 46 { 47 ASSERT(subdomainSetting == AllowSubdomains || subdomainSetting == DisallowSubdomains); 48 49 // Assume that any host that ends with a digit is trying to be an IP address. 50 m_hostIsIPAddress = !m_host.isEmpty() && isASCIIDigit(m_host[m_host.length() - 1]); 51 52 // Look for top-level domains, either with or without an additional dot. 53 if (!m_hostIsIPAddress) { 54 blink::WebPublicSuffixList* suffixList = blink::Platform::current()->publicSuffixList(); 55 if (suffixList && m_host.length() <= suffixList->getPublicSuffixLength(m_host) + 1) 56 m_hostIsPublicSuffix = true; 57 } 58 } 59 60 OriginAccessEntry::MatchResult OriginAccessEntry::matchesOrigin(const SecurityOrigin& origin) const 61 { 62 ASSERT(origin.host() == origin.host().lower()); 63 ASSERT(origin.protocol() == origin.protocol().lower()); 64 65 if (m_protocol != origin.protocol()) 66 return DoesNotMatchOrigin; 67 68 // Special case: Include subdomains and empty host means "all hosts, including ip addresses". 69 if (m_subdomainSettings == AllowSubdomains && m_host.isEmpty()) 70 return MatchesOrigin; 71 72 // Exact match. 73 if (m_host == origin.host()) 74 return MatchesOrigin; 75 76 // Otherwise we can only match if we're matching subdomains. 77 if (m_subdomainSettings == DisallowSubdomains) 78 return DoesNotMatchOrigin; 79 80 // Don't try to do subdomain matching on IP addresses (except for testing). 81 if (m_hostIsIPAddress && m_ipAddressSettings == TreatIPAddressAsIPAddress) 82 return DoesNotMatchOrigin; 83 84 // Match subdomains. 85 if (origin.host().length() <= m_host.length() || origin.host()[origin.host().length() - m_host.length() - 1] != '.' || !origin.host().endsWith(m_host)) 86 return DoesNotMatchOrigin; 87 88 if (m_hostIsPublicSuffix) 89 return MatchesOriginButIsPublicSuffix; 90 91 return MatchesOrigin; 92 } 93 94 } // namespace WebCore 95
