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 (at) 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 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 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 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 } 102 103 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 } 115 116 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 } 133 134 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 } 140 141 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 } 147 148 void XSLTProcessor::removeParameter(const String& /*namespaceURI*/, const String& localName) 149 { 150 // FIXME: namespace support? 151 m_parameters.remove(localName); 152 } 153 154 void XSLTProcessor::reset() 155 { 156 m_stylesheet.clear(); 157 m_stylesheetRootNode.clear(); 158 m_parameters.clear(); 159 } 160 161 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