1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
* Copyright (C) 2011 Google, Inc. All rights reserved.
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ContentSecurityPolicy_h
#define ContentSecurityPolicy_h
#include "ContentSecurityPolicyResponseHeaders.h"
#include "ScriptState.h"
#include <wtf/OptionSet.h>
#include <wtf/Vector.h>
#include <wtf/text/TextPosition.h>
namespace WTF {
class OrdinalNumber;
}
namespace WebCore {
class ContentSecurityPolicyDirectiveList;
class ContentSecurityPolicySource;
class DOMStringList;
class ScriptExecutionContext;
class SecurityOrigin;
class TextEncoding;
class URL;
enum class ContentSecurityPolicyHashAlgorithm;
typedef Vector<std::unique_ptr<ContentSecurityPolicyDirectiveList>> CSPDirectiveListVector;
typedef int SandboxFlags;
class ContentSecurityPolicy {
WTF_MAKE_FAST_ALLOCATED;
public:
explicit ContentSecurityPolicy(ScriptExecutionContext&);
explicit ContentSecurityPolicy(const SecurityOrigin&);
~ContentSecurityPolicy();
void copyStateFrom(const ContentSecurityPolicy*);
// Be sure to update the behavior of XSSAuditor::combineXSSProtectionHeaderAndCSP whenever you change this enum's content or ordering.
enum ReflectedXSSDisposition {
ReflectedXSSUnset = 0,
AllowReflectedXSS,
ReflectedXSSInvalid,
FilterReflectedXSS,
BlockReflectedXSS
};
ReflectedXSSDisposition reflectedXSSDisposition() const;
enum class PolicyFrom {
HTTPEquivMeta,
HTTPHeader,
Inherited,
};
ContentSecurityPolicyResponseHeaders responseHeaders() const;
void didReceiveHeaders(const ContentSecurityPolicyResponseHeaders&);
void processHTTPEquiv(const String& content, ContentSecurityPolicyHeaderType type) { didReceiveHeader(content, type, ContentSecurityPolicy::PolicyFrom::HTTPEquivMeta); }
enum class ReportingStatus {
SendReport,
SuppressReport
};
bool allowJavaScriptURLs(const String& contextURL, const WTF::OrdinalNumber& contextLine, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowInlineEventHandlers(const String& contextURL, const WTF::OrdinalNumber& contextLine, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowScriptWithNonce(const String& nonce, bool overrideContentSecurityPolicy = false) const;
bool allowInlineScript(const String& contextURL, const WTF::OrdinalNumber& contextLine, const String& scriptContent, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowStyleWithNonce(const String& nonce, bool overrideContentSecurityPolicy = false) const;
bool allowInlineStyle(const String& contextURL, const WTF::OrdinalNumber& contextLine, const String& styleContent, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowEval(JSC::ExecState* = nullptr, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowPluginType(const String& type, const String& typeAttribute, const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowScriptFromSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowObjectFromSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowChildFrameFromSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowChildContextFromSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowImageFromSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowStyleFromSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowFontFromSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowMediaFromSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowConnectToSource(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowFormAction(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
bool allowBaseURI(const URL&, bool overrideContentSecurityPolicy = false, ContentSecurityPolicy::ReportingStatus = ContentSecurityPolicy::ReportingStatus::SendReport) const;
void setOverrideAllowInlineStyle(bool);
bool isActive() const;
void gatherReportURIs(DOMStringList&) const;
String evalDisabledErrorMessage() const;
bool experimentalFeaturesEnabled() const;
// The following functions are used by internal data structures to call back into this object when parsing, validating,
// and applying a Content Security Policy.
// FIXME: We should make the various directives serve only as state stores for the parsed policy and remove these functions.
// This class should traverse the directives, validating the policy, and applying it to the script execution context.
// Used by ContentSecurityPolicyMediaListDirective
void reportInvalidPluginTypes(const String&) const;
// Used by ContentSecurityPolicySourceList
void reportDirectiveAsSourceExpression(const String& directiveName, const String& sourceExpression) const;
void reportInvalidPathCharacter(const String& directiveName, const String& value, const char) const;
void reportInvalidSourceExpression(const String& directiveName, const String& source) const;
bool urlMatchesSelf(const URL&) const;
// Used by ContentSecurityPolicyDirectiveList
void reportDuplicateDirective(const String&) const;
void reportInvalidDirectiveValueCharacter(const String& directiveName, const String& value) const;
void reportInvalidSandboxFlags(const String&) const;
void reportInvalidReflectedXSS(const String&) const;
void reportInvalidDirectiveInReportOnlyMode(const String&) const;
void reportInvalidDirectiveInHTTPEquivMeta(const String&) const;
void reportMissingReportURI(const String&) const;
void reportUnsupportedDirective(const String&) const;
void reportViolation(const String& directiveText, const String& effectiveDirective, const String& consoleMessage, const URL& blockedURL, const Vector<String>& reportURIs, const String& header, const String& contextURL = String(), const WTF::OrdinalNumber& contextLine = WTF::OrdinalNumber::beforeFirst(), JSC::ExecState* = nullptr) const;
void reportBlockedScriptExecutionToInspector(const String& directiveText) const;
void enforceSandboxFlags(SandboxFlags sandboxFlags) { m_sandboxFlags |= sandboxFlags; }
void addHashAlgorithmsForInlineScripts(OptionSet<ContentSecurityPolicyHashAlgorithm> hashAlgorithmsForInlineScripts)
{
m_hashAlgorithmsForInlineScripts |= hashAlgorithmsForInlineScripts;
}
void addHashAlgorithmsForInlineStylesheets(OptionSet<ContentSecurityPolicyHashAlgorithm> hashAlgorithmsForInlineStylesheets)
{
m_hashAlgorithmsForInlineStylesheets |= hashAlgorithmsForInlineStylesheets;
}
// Used by ContentSecurityPolicySource
bool protocolMatchesSelf(const URL&) const;
private:
void logToConsole(const String& message, const String& contextURL = String(), const WTF::OrdinalNumber& contextLine = WTF::OrdinalNumber::beforeFirst(), JSC::ExecState* = nullptr) const;
void updateSourceSelf(const SecurityOrigin&);
void applyPolicyToScriptExecutionContext();
void didReceiveHeader(const String&, ContentSecurityPolicyHeaderType, ContentSecurityPolicy::PolicyFrom);
const TextEncoding& documentEncoding() const;
ScriptExecutionContext* m_scriptExecutionContext { nullptr };
std::unique_ptr<ContentSecurityPolicySource> m_selfSource;
String m_selfSourceProtocol;
CSPDirectiveListVector m_policies;
String m_lastPolicyEvalDisabledErrorMessage;
SandboxFlags m_sandboxFlags;
bool m_overrideInlineStyleAllowed { false };
OptionSet<ContentSecurityPolicyHashAlgorithm> m_hashAlgorithmsForInlineScripts;
OptionSet<ContentSecurityPolicyHashAlgorithm> m_hashAlgorithmsForInlineStylesheets;
};
}
#endif
|
