2 * Copyright (C) 2011 Adam Barth. All Rights Reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
13 * THIS SOFTWARE IS PROVIDED BY APPLE 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.
29 #include "HTMLToken.h"
30 #include "HTTPParsers.h"
31 #include "SuffixTree.h"
35 class HTMLDocumentParser;
38 WTF_MAKE_NONCOPYABLE(XSSAuditor);
40 explicit XSSAuditor(HTMLDocumentParser*);
42 void filterToken(HTMLToken&);
58 bool filterTokenInitial(HTMLToken&);
59 bool filterTokenAfterScriptStartTag(HTMLToken&);
61 bool filterScriptToken(HTMLToken&);
62 bool filterObjectToken(HTMLToken&);
63 bool filterParamToken(HTMLToken&);
64 bool filterEmbedToken(HTMLToken&);
65 bool filterAppletToken(HTMLToken&);
66 bool filterIframeToken(HTMLToken&);
67 bool filterMetaToken(HTMLToken&);
68 bool filterBaseToken(HTMLToken&);
69 bool filterFormToken(HTMLToken&);
71 bool eraseDangerousAttributesIfInjected(HTMLToken&);
72 bool eraseAttributeIfInjected(HTMLToken&, const QualifiedName&, const String& replacementValue = String(), AttributeKind treatment = NormalAttribute);
74 String snippetForRange(const HTMLToken&, int start, int end);
75 String snippetForJavaScript(const String&);
76 String decodedSnippetForAttribute(const HTMLToken&, const HTMLToken::Attribute&, AttributeKind treatment = NormalAttribute);
78 bool isContainedInRequest(const String&);
79 bool isSameOriginResource(const String& url);
81 HTMLDocumentParser* m_parser;
83 XSSProtectionDisposition m_xssProtection;
86 String m_decodedHTTPBody;
87 OwnPtr<SuffixTree<ASCIICodebook> > m_decodedHTTPBodySuffixTree;
90 String m_cachedSnippet;
91 bool m_notifiedClient;