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 36namespace WebCore { 37 38OriginAccessEntry::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(m_protocol == "http" || m_protocol == "https"); 44 ASSERT(subdomainSetting == AllowSubdomains || subdomainSetting == DisallowSubdomains); 45 46 // Assume that any host that ends with a digit is trying to be an IP address. 47 m_hostIsIPAddress = !m_host.isEmpty() && isASCIIDigit(m_host[m_host.length() - 1]); 48} 49 50bool OriginAccessEntry::matchesOrigin(const SecurityOrigin& origin) const 51{ 52 ASSERT(origin.host() == origin.host().lower()); 53 ASSERT(origin.protocol() == origin.protocol().lower()); 54 55 if (m_protocol != origin.protocol()) 56 return false; 57 58 // Special case: Include subdomains and empty host means "all hosts, including ip addresses". 59 if (m_subdomainSettings == AllowSubdomains && m_host.isEmpty()) 60 return true; 61 62 // Exact match. 63 if (m_host == origin.host()) 64 return true; 65 66 // Otherwise we can only match if we're matching subdomains. 67 if (m_subdomainSettings == DisallowSubdomains) 68 return false; 69 70 // Don't try to do subdomain matching on IP addresses. 71 if (m_hostIsIPAddress) 72 return false; 73 74 // Match subdomains. 75 if (origin.host().length() > m_host.length() && origin.host()[origin.host().length() - m_host.length() - 1] == '.' && origin.host().endsWith(m_host)) 76 return true; 77 78 return false; 79} 80 81} // namespace WebCore 82