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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY GOOGLE, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 */
26
27#ifndef SecurityContext_h
28#define SecurityContext_h
29
30#include <memory>
31#include <wtf/RefPtr.h>
32#include <wtf/text/WTFString.h>
33
34namespace WebCore {
35
36class SecurityOrigin;
37class SecurityOriginPolicy;
38class ContentSecurityPolicy;
39class URL;
40
41enum SandboxFlag {
42 // See http://www.whatwg.org/specs/web-apps/current-work/#attr-iframe-sandbox for a list of the sandbox flags.
43 SandboxNone = 0,
44 SandboxNavigation = 1,
45 SandboxPlugins = 1 << 1,
46 SandboxOrigin = 1 << 2,
47 SandboxForms = 1 << 3,
48 SandboxScripts = 1 << 4,
49 SandboxTopNavigation = 1 << 5,
50 SandboxPopups = 1 << 6, // See https://www.w3.org/Bugs/Public/show_bug.cgi?id=12393
51 SandboxAutomaticFeatures = 1 << 7,
52 SandboxPointerLock = 1 << 8,
53 SandboxAll = -1 // Mask with all bits set to 1.
54};
55
56typedef int SandboxFlags;
57
58class SecurityContext {
59public:
60 SandboxFlags sandboxFlags() const { return m_sandboxFlags; }
61 ContentSecurityPolicy* contentSecurityPolicy() { return m_contentSecurityPolicy.get(); }
62
63 bool isSecureTransitionTo(const URL&) const;
64
65 void enforceSandboxFlags(SandboxFlags mask);
66 bool isSandboxed(SandboxFlags mask) const { return m_sandboxFlags & mask; }
67
68 SecurityOriginPolicy* securityOriginPolicy() const { return m_securityOriginPolicy.get(); }
69
70 // Explicitly override the security origin for this security context.
71 // Note: It is dangerous to change the security origin of a script context
72 // that already contains content.
73 void setSecurityOriginPolicy(RefPtr<SecurityOriginPolicy>&&);
74
75 WEBCORE_EXPORT SecurityOrigin* securityOrigin() const;
76
77 static SandboxFlags parseSandboxPolicy(const String& policy, String& invalidTokensErrorMessage);
78
79protected:
80 SecurityContext();
81 virtual ~SecurityContext();
82
83 void setContentSecurityPolicy(std::unique_ptr<ContentSecurityPolicy>);
84
85 void didFailToInitializeSecurityOrigin() { m_haveInitializedSecurityOrigin = false; }
86 bool haveInitializedSecurityOrigin() const { return m_haveInitializedSecurityOrigin; }
87
88private:
89 bool m_haveInitializedSecurityOrigin;
90 SandboxFlags m_sandboxFlags;
91 RefPtr<SecurityOriginPolicy> m_securityOriginPolicy;
92 std::unique_ptr<ContentSecurityPolicy> m_contentSecurityPolicy;
93};
94
95} // namespace WebCore
96
97#endif // SecurityContext_h
98