1 /** 2 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #include "config.h" 22 23 #if ENABLE(WML) 24 #include "WMLGoElement.h" 25 26 #include "CString.h" 27 #include "FormData.h" 28 #include "Frame.h" 29 #include "FrameLoader.h" 30 #include "HTMLNames.h" 31 #include "MappedAttribute.h" 32 #include "ResourceRequest.h" 33 #include "TextEncoding.h" 34 #include "WMLCardElement.h" 35 #include "WMLDocument.h" 36 #include "WMLNames.h" 37 #include "WMLPageState.h" 38 #include "WMLPostfieldElement.h" 39 #include "WMLTimerElement.h" 40 #include "WMLVariables.h" 41 42 namespace WebCore { 43 44 using namespace WMLNames; 45 WMLGoElement(const QualifiedName & tagName,Document * doc)46 WMLGoElement::WMLGoElement(const QualifiedName& tagName, Document* doc) 47 : WMLTaskElement(tagName, doc) 48 { 49 } 50 registerPostfieldElement(WMLPostfieldElement * postfield)51 void WMLGoElement::registerPostfieldElement(WMLPostfieldElement* postfield) 52 { 53 ASSERT(m_postfieldElements.find(postfield) == WTF::notFound); 54 m_postfieldElements.append(postfield); 55 } 56 deregisterPostfieldElement(WMLPostfieldElement * postfield)57 void WMLGoElement::deregisterPostfieldElement(WMLPostfieldElement* postfield) 58 { 59 size_t position = m_postfieldElements.find(postfield); 60 ASSERT(position != WTF::notFound); 61 m_postfieldElements.remove(position); 62 } 63 parseMappedAttribute(MappedAttribute * attr)64 void WMLGoElement::parseMappedAttribute(MappedAttribute* attr) 65 { 66 if (attr->name() == HTMLNames::methodAttr) 67 m_formDataBuilder.parseMethodType(attr->value()); 68 else if (attr->name() == HTMLNames::enctypeAttr) 69 m_formDataBuilder.parseEncodingType(parseValueSubstitutingVariableReferences(attr->value())); 70 else if (attr->name() == HTMLNames::accept_charsetAttr) 71 m_formDataBuilder.setAcceptCharset(parseValueForbiddingVariableReferences(attr->value())); 72 else 73 WMLTaskElement::parseMappedAttribute(attr); 74 } 75 executeTask(Event *)76 void WMLGoElement::executeTask(Event*) 77 { 78 Document* doc = document(); 79 WMLPageState* pageState = wmlPageStateForDocument(doc); 80 if (!pageState) 81 return; 82 83 WMLCardElement* card = pageState->activeCard(); 84 if (!card) 85 return; 86 87 Frame* frame = doc->frame(); 88 if (!frame) 89 return; 90 91 FrameLoader* loader = frame->loader(); 92 if (!loader) 93 return; 94 95 String href = getAttribute(HTMLNames::hrefAttr); 96 if (href.isEmpty()) 97 return; 98 99 // Substitute variables within target url attribute value 100 KURL url = doc->completeURL(substituteVariableReferences(href, doc, WMLVariableEscapingEscape)); 101 if (url.isEmpty()) 102 return; 103 104 storeVariableState(pageState); 105 106 // Stop the timer of the current card if it is active 107 if (WMLTimerElement* eventTimer = card->eventTimer()) 108 eventTimer->stop(); 109 110 // FIXME: 'newcontext' handling not implemented for external cards 111 bool inSameDeck = doc->url().path() == url.path(); 112 if (inSameDeck && url.hasFragmentIdentifier()) { 113 if (WMLCardElement* card = WMLCardElement::findNamedCardInDocument(doc, url.fragmentIdentifier())) { 114 if (card->isNewContext()) 115 pageState->reset(); 116 } 117 } 118 119 // Prepare loading the destination url 120 ResourceRequest request(url); 121 122 if (getAttribute(sendrefererAttr) == "true") 123 request.setHTTPReferrer(loader->outgoingReferrer()); 124 125 String cacheControl = getAttribute(cache_controlAttr); 126 127 if (m_formDataBuilder.isPostMethod()) 128 preparePOSTRequest(request, inSameDeck, cacheControl); 129 else 130 prepareGETRequest(request, url); 131 132 // Set HTTP cache-control header if needed 133 if (!cacheControl.isEmpty()) { 134 request.setHTTPHeaderField("cache-control", cacheControl); 135 136 if (cacheControl == "no-cache") 137 request.setCachePolicy(ReloadIgnoringCacheData); 138 } 139 140 loader->load(request, false); 141 } 142 preparePOSTRequest(ResourceRequest & request,bool inSameDeck,const String & cacheControl)143 void WMLGoElement::preparePOSTRequest(ResourceRequest& request, bool inSameDeck, const String& cacheControl) 144 { 145 request.setHTTPMethod("POST"); 146 147 if (inSameDeck && cacheControl != "no-cache") { 148 request.setCachePolicy(ReturnCacheDataDontLoad); 149 return; 150 } 151 152 RefPtr<FormData> data; 153 154 if (m_formDataBuilder.isMultiPartForm()) { // multipart/form-data 155 Vector<char> boundary = m_formDataBuilder.generateUniqueBoundaryString(); 156 data = createFormData(boundary.data()); 157 request.setHTTPContentType(m_formDataBuilder.encodingType() + "; boundary=" + boundary.data()); 158 } else { 159 // text/plain or application/x-www-form-urlencoded 160 data = createFormData(CString()); 161 request.setHTTPContentType(m_formDataBuilder.encodingType()); 162 } 163 164 request.setHTTPBody(data.get()); 165 } 166 prepareGETRequest(ResourceRequest & request,const KURL & url)167 void WMLGoElement::prepareGETRequest(ResourceRequest& request, const KURL& url) 168 { 169 request.setHTTPMethod("GET"); 170 171 // Eventually display error message? 172 if (m_formDataBuilder.isMultiPartForm()) 173 return; 174 175 RefPtr<FormData> data = createFormData(CString()); 176 177 KURL remoteURL(url); 178 remoteURL.setQuery(data->flattenToString()); 179 request.setURL(remoteURL); 180 } 181 createFormData(const CString & boundary)182 PassRefPtr<FormData> WMLGoElement::createFormData(const CString& boundary) 183 { 184 CString key; 185 CString value; 186 187 Vector<char> encodedData; 188 TextEncoding encoding = m_formDataBuilder.dataEncoding(document()).encodingForFormSubmission(); 189 190 Vector<WMLPostfieldElement*>::iterator it = m_postfieldElements.begin(); 191 Vector<WMLPostfieldElement*>::iterator end = m_postfieldElements.end(); 192 193 RefPtr<FormData> result = FormData::create(); 194 for (; it != end; ++it) { 195 (*it)->encodeData(encoding, key, value); 196 197 if (m_formDataBuilder.isMultiPartForm()) { 198 Vector<char> header; 199 m_formDataBuilder.beginMultiPartHeader(header, boundary, key); 200 m_formDataBuilder.finishMultiPartHeader(header); 201 result->appendData(header.data(), header.size()); 202 203 if (size_t dataSize = value.length()) 204 result->appendData(value.data(), dataSize); 205 206 result->appendData("\r\n", 2); 207 } else 208 m_formDataBuilder.addKeyValuePairAsFormData(encodedData, key, value); 209 } 210 211 if (m_formDataBuilder.isMultiPartForm()) 212 m_formDataBuilder.addBoundaryToMultiPartHeader(encodedData, boundary, true); 213 214 result->appendData(encodedData.data(), encodedData.size()); 215 return result; 216 } 217 218 } 219 220 #endif 221