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 "OriginAccessEntry.h" 33 34 #include "SecurityOrigin.h" 35 36 namespace WebCore { 37 38 OriginAccessEntry::OriginAccessEntry(const String& protocol, const String& host, SubdomainSetting subdomainSetting) 39 : m_protocol(protocol.lower()) 40 , m_host(host.lower()) 41 , m_subdomainSettings(subdomainSetting) 42 { 43 ASSERT(subdomainSetting == AllowSubdomains || subdomainSetting == DisallowSubdomains); 44 45 // Assume that any host that ends with a digit is trying to be an IP address. 46 m_hostIsIPAddress = !m_host.isEmpty() && isASCIIDigit(m_host[m_host.length() - 1]); 47 } 48 49 bool OriginAccessEntry::matchesOrigin(const SecurityOrigin& origin) const 50 { 51 ASSERT(origin.host() == origin.host().lower()); 52 ASSERT(origin.protocol() == origin.protocol().lower()); 53 54 if (m_protocol != origin.protocol()) 55 return false; 56 57 // Special case: Include subdomains and empty host means "all hosts, including ip addresses". 58 if (m_subdomainSettings == AllowSubdomains && m_host.isEmpty()) 59 return true; 60 61 // Exact match. 62 if (m_host == origin.host()) 63 return true; 64 65 // Otherwise we can only match if we're matching subdomains. 66 if (m_subdomainSettings == DisallowSubdomains) 67 return false; 68 69 // Don't try to do subdomain matching on IP addresses. 70 if (m_hostIsIPAddress) 71 return false; 72 73 // Match subdomains. 74 if (origin.host().length() > m_host.length() && origin.host()[origin.host().length() - m_host.length() - 1] == '.' && origin.host().endsWith(m_host)) 75 return true; 76 77 return false; 78 } 79 80 } // namespace WebCore 81
