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, IPAddressSetting ipAddressSetting)
39 : m_protocol(protocol.convertToASCIILowercase())
40 , m_host(host.convertToASCIILowercase())
41 , m_subdomainSettings(subdomainSetting)
42 , m_ipAddressSettings(ipAddressSetting)
43 , m_hostIsIPAddress(URL::hostIsIPAddress(m_host))
44{
45 ASSERT(subdomainSetting == AllowSubdomains || subdomainSetting == DisallowSubdomains);
46}
47
48bool OriginAccessEntry::matchesOrigin(const SecurityOrigin& origin) const
49{
50 ASSERT(origin.host() == origin.host().convertToASCIILowercase());
51 ASSERT(origin.protocol() == origin.protocol().convertToASCIILowercase());
52
53 if (m_protocol != origin.protocol())
54 return false;
55
56 // Special case: Include subdomains and empty host means "all hosts, including ip addresses".
57 if (m_subdomainSettings == AllowSubdomains && m_host.isEmpty())
58 return true;
59
60 // Exact match.
61 if (m_host == origin.host())
62 return true;
63
64 // Otherwise we can only match if we're matching subdomains.
65 if (m_subdomainSettings == DisallowSubdomains)
66 return false;
67
68 // IP addresses are not domains: https://url.spec.whatwg.org/#concept-domain
69 // Don't try to do subdomain matching on IP addresses.
70 if (m_ipAddressSettings == TreatIPAddressAsIPAddress && (m_hostIsIPAddress || URL::hostIsIPAddress(origin.host())))
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