1 /*
2 * This file is part of the XSL implementation.
3 *
4 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple, Inc. All rights reserved.
5 * Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@webkit.org>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23 #include "config.h"
24 #include "core/xml/XSLTProcessor.h"
25
26 #include "core/dom/DOMImplementation.h"
27 #include "core/dom/DocumentEncodingData.h"
28 #include "core/dom/DocumentFragment.h"
29 #include "core/editing/markup.h"
30 #include "core/frame/LocalDOMWindow.h"
31 #include "core/frame/FrameView.h"
32 #include "core/frame/LocalFrame.h"
33 #include "core/frame/csp/ContentSecurityPolicy.h"
34 #include "platform/weborigin/SecurityOrigin.h"
35 #include "wtf/Assertions.h"
36
37 namespace blink {
38
transformTextStringToXHTMLDocumentString(String & text)39 static inline void transformTextStringToXHTMLDocumentString(String& text)
40 {
41 // Modify the output so that it is a well-formed XHTML document with a <pre> tag enclosing the text.
42 text.replaceWithLiteral('&', "&");
43 text.replaceWithLiteral('<', "<");
44 text = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
45 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
46 "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
47 "<head><title/></head>\n"
48 "<body>\n"
49 "<pre>" + text + "</pre>\n"
50 "</body>\n"
51 "</html>\n";
52 }
53
~XSLTProcessor()54 XSLTProcessor::~XSLTProcessor()
55 {
56 #if !ENABLE(OILPAN)
57 // Stylesheet shouldn't outlive its root node.
58 ASSERT(!m_stylesheetRootNode || !m_stylesheet || m_stylesheet->hasOneRef());
59 #endif
60 }
61
createDocumentFromSource(const String & sourceString,const String & sourceEncoding,const String & sourceMIMEType,Node * sourceNode,LocalFrame * frame)62 PassRefPtrWillBeRawPtr<Document> XSLTProcessor::createDocumentFromSource(const String& sourceString,
63 const String& sourceEncoding, const String& sourceMIMEType, Node* sourceNode, LocalFrame* frame)
64 {
65 RefPtrWillBeRawPtr<Document> ownerDocument(sourceNode->document());
66 bool sourceIsDocument = (sourceNode == ownerDocument.get());
67 String documentSource = sourceString;
68
69 RefPtrWillBeRawPtr<Document> result = nullptr;
70 DocumentInit init(sourceIsDocument ? ownerDocument->url() : KURL(), frame);
71
72 bool forceXHTML = sourceMIMEType == "text/plain";
73 if (forceXHTML)
74 transformTextStringToXHTMLDocumentString(documentSource);
75
76 if (frame) {
77 RefPtrWillBeRawPtr<Document> oldDocument = frame->document();
78 result = frame->domWindow()->installNewDocument(sourceMIMEType, init, forceXHTML);
79
80 // Before parsing, we need to save & detach the old document and get the new document
81 // in place. We have to do this only if we're rendering the result document.
82 if (FrameView* view = frame->view())
83 view->clear();
84
85 if (oldDocument) {
86 result->setTransformSourceDocument(oldDocument.get());
87 result->updateSecurityOrigin(oldDocument->securityOrigin());
88 result->setCookieURL(oldDocument->cookieURL());
89 result->initContentSecurityPolicy();
90 }
91 } else {
92 result = LocalDOMWindow::createDocument(sourceMIMEType, init, forceXHTML);
93 }
94
95 DocumentEncodingData data;
96 data.setEncoding(sourceEncoding.isEmpty() ? UTF8Encoding() : WTF::TextEncoding(sourceEncoding));
97 result->setEncodingData(data);
98 result->setContent(documentSource);
99
100 return result.release();
101 }
102
transformToDocument(Node * sourceNode)103 PassRefPtrWillBeRawPtr<Document> XSLTProcessor::transformToDocument(Node* sourceNode)
104 {
105 if (!sourceNode)
106 return nullptr;
107
108 String resultMIMEType;
109 String resultString;
110 String resultEncoding;
111 if (!transformToString(sourceNode, resultMIMEType, resultString, resultEncoding))
112 return nullptr;
113 return createDocumentFromSource(resultString, resultEncoding, resultMIMEType, sourceNode, 0);
114 }
115
transformToFragment(Node * sourceNode,Document * outputDoc)116 PassRefPtrWillBeRawPtr<DocumentFragment> XSLTProcessor::transformToFragment(Node* sourceNode, Document* outputDoc)
117 {
118 if (!sourceNode || !outputDoc)
119 return nullptr;
120
121 String resultMIMEType;
122 String resultString;
123 String resultEncoding;
124
125 // If the output document is HTML, default to HTML method.
126 if (outputDoc->isHTMLDocument())
127 resultMIMEType = "text/html";
128
129 if (!transformToString(sourceNode, resultMIMEType, resultString, resultEncoding))
130 return nullptr;
131 return createFragmentForTransformToFragment(resultString, resultMIMEType, *outputDoc);
132 }
133
setParameter(const String &,const String & localName,const String & value)134 void XSLTProcessor::setParameter(const String& /*namespaceURI*/, const String& localName, const String& value)
135 {
136 // FIXME: namespace support?
137 // should make a QualifiedName here but we'd have to expose the impl
138 m_parameters.set(localName, value);
139 }
140
getParameter(const String &,const String & localName) const141 String XSLTProcessor::getParameter(const String& /*namespaceURI*/, const String& localName) const
142 {
143 // FIXME: namespace support?
144 // should make a QualifiedName here but we'd have to expose the impl
145 return m_parameters.get(localName);
146 }
147
removeParameter(const String &,const String & localName)148 void XSLTProcessor::removeParameter(const String& /*namespaceURI*/, const String& localName)
149 {
150 // FIXME: namespace support?
151 m_parameters.remove(localName);
152 }
153
reset()154 void XSLTProcessor::reset()
155 {
156 m_stylesheet.clear();
157 m_stylesheetRootNode.clear();
158 m_parameters.clear();
159 }
160
trace(Visitor * visitor)161 void XSLTProcessor::trace(Visitor* visitor)
162 {
163 visitor->trace(m_stylesheet);
164 visitor->trace(m_stylesheetRootNode);
165 visitor->trace(m_document);
166 }
167
168 } // namespace blink
169