1/*
2 * Copyright (C) 2011 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
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 Google, Inc. ("Google") 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 GOOGLE 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 SecurityPolicy_h
30#define SecurityPolicy_h
31
32#include "ReferrerPolicy.h"
33#include <wtf/text/WTFString.h>
34
35namespace WebCore {
36
37class KURL;
38class SecurityOrigin;
39
40class SecurityPolicy {
41public:
42    // True if the referrer should be omitted according to the
43    // ReferrerPolicyDefault. If you intend to send a referrer header, you
44    // should use generateReferrerHeader instead.
45    static bool shouldHideReferrer(const KURL&, const String& referrer);
46
47    // Returns the referrer modified according to the referrer policy for a
48    // navigation to a given URL. If the referrer returned is empty, the
49    // referrer header should be omitted.
50    static String generateReferrerHeader(ReferrerPolicy, const KURL&, const String& referrer);
51
52    enum LocalLoadPolicy {
53        AllowLocalLoadsForAll, // No restriction on local loads.
54        AllowLocalLoadsForLocalAndSubstituteData,
55        AllowLocalLoadsForLocalOnly,
56    };
57
58    static void setLocalLoadPolicy(LocalLoadPolicy);
59    static bool restrictAccessToLocal();
60    static bool allowSubstituteDataAccessToLocal();
61
62    static void addOriginAccessWhitelistEntry(const SecurityOrigin& sourceOrigin, const String& destinationProtocol, const String& destinationDomain, bool allowDestinationSubdomains);
63    static void removeOriginAccessWhitelistEntry(const SecurityOrigin& sourceOrigin, const String& destinationProtocol, const String& destinationDomain, bool allowDestinationSubdomains);
64    static void resetOriginAccessWhitelists();
65
66    static bool isAccessWhiteListed(const SecurityOrigin* activeOrigin, const SecurityOrigin* targetOrigin);
67    static bool isAccessToURLWhiteListed(const SecurityOrigin* activeOrigin, const KURL&);
68};
69
70} // namespace WebCore
71
72#endif // SecurityPolicy_h
73