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 46 WMLGoElement::WMLGoElement(const QualifiedName& tagName, Document* doc) 47 : WMLTaskElement(tagName, doc) 48 { 49 } 50 51 void WMLGoElement::registerPostfieldElement(WMLPostfieldElement* postfield) 52 { 53 ASSERT(m_postfieldElements.find(postfield) == WTF::notFound); 54 m_postfieldElements.append(postfield); 55 } 56 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 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 76 void WMLGoElement::executeTask() 77 { 78 ASSERT(document()->isWMLDocument()); 79 WMLDocument* document = static_cast<WMLDocument*>(this->document()); 80 81 WMLPageState* pageState = wmlPageStateForDocument(document); 82 if (!pageState) 83 return; 84 85 WMLCardElement* card = document->activeCard(); 86 if (!card) 87 return; 88 89 Frame* frame = document->frame(); 90 if (!frame) 91 return; 92 93 FrameLoader* loader = frame->loader(); 94 if (!loader) 95 return; 96 97 String href = getAttribute(HTMLNames::hrefAttr); 98 if (href.isEmpty()) 99 return; 100 101 // Substitute variables within target url attribute value 102 KURL url = document->completeURL(substituteVariableReferences(href, document, WMLVariableEscapingEscape)); 103 if (url.isEmpty()) 104 return; 105 106 storeVariableState(pageState); 107 108 // Stop the timer of the current card if it is active 109 if (WMLTimerElement* eventTimer = card->eventTimer()) 110 eventTimer->stop(); 111 112 // FIXME: 'newcontext' handling not implemented for external cards 113 bool inSameDeck = document->url().path() == url.path(); 114 if (inSameDeck && url.hasFragmentIdentifier()) { 115 if (WMLCardElement* card = WMLCardElement::findNamedCardInDocument(document, url.fragmentIdentifier())) { 116 if (card->isNewContext()) 117 pageState->reset(); 118 } 119 } 120 121 // Prepare loading the destination url 122 ResourceRequest request(url); 123 124 if (getAttribute(sendrefererAttr) == "true") 125 request.setHTTPReferrer(loader->outgoingReferrer()); 126 127 String cacheControl = getAttribute(cache_controlAttr); 128 129 if (m_formDataBuilder.isPostMethod()) 130 preparePOSTRequest(request, inSameDeck, cacheControl); 131 else 132 prepareGETRequest(request, url); 133 134 // Set HTTP cache-control header if needed 135 if (!cacheControl.isEmpty()) { 136 request.setHTTPHeaderField("cache-control", cacheControl); 137 138 if (cacheControl == "no-cache") 139 request.setCachePolicy(ReloadIgnoringCacheData); 140 } 141 142 loader->load(request, false); 143 } 144 145 void WMLGoElement::preparePOSTRequest(ResourceRequest& request, bool inSameDeck, const String& cacheControl) 146 { 147 request.setHTTPMethod("POST"); 148 149 if (inSameDeck && cacheControl != "no-cache") { 150 request.setCachePolicy(ReturnCacheDataDontLoad); 151 return; 152 } 153 154 RefPtr<FormData> data; 155 156 if (m_formDataBuilder.isMultiPartForm()) { // multipart/form-data 157 Vector<char> boundary = m_formDataBuilder.generateUniqueBoundaryString(); 158 data = createFormData(boundary.data()); 159 request.setHTTPContentType(m_formDataBuilder.encodingType() + "; boundary=" + boundary.data()); 160 } else { 161 // text/plain or application/x-www-form-urlencoded 162 data = createFormData(CString()); 163 request.setHTTPContentType(m_formDataBuilder.encodingType()); 164 } 165 166 request.setHTTPBody(data.get()); 167 } 168 169 void WMLGoElement::prepareGETRequest(ResourceRequest& request, const KURL& url) 170 { 171 request.setHTTPMethod("GET"); 172 173 // Eventually display error message? 174 if (m_formDataBuilder.isMultiPartForm()) 175 return; 176 177 RefPtr<FormData> data = createFormData(CString()); 178 179 KURL remoteURL(url); 180 remoteURL.setQuery(data->flattenToString()); 181 request.setURL(remoteURL); 182 } 183 184 PassRefPtr<FormData> WMLGoElement::createFormData(const CString& boundary) 185 { 186 CString key; 187 CString value; 188 189 Vector<char> encodedData; 190 TextEncoding encoding = m_formDataBuilder.dataEncoding(document()).encodingForFormSubmission(); 191 192 Vector<WMLPostfieldElement*>::iterator it = m_postfieldElements.begin(); 193 Vector<WMLPostfieldElement*>::iterator end = m_postfieldElements.end(); 194 195 RefPtr<FormData> result = FormData::create(); 196 for (; it != end; ++it) { 197 (*it)->encodeData(encoding, key, value); 198 199 if (m_formDataBuilder.isMultiPartForm()) { 200 Vector<char> header; 201 m_formDataBuilder.beginMultiPartHeader(header, boundary, key); 202 m_formDataBuilder.finishMultiPartHeader(header); 203 result->appendData(header.data(), header.size()); 204 205 if (size_t dataSize = value.length()) 206 result->appendData(value.data(), dataSize); 207 208 result->appendData("\r\n", 2); 209 } else 210 m_formDataBuilder.addKeyValuePairAsFormData(encodedData, key, value); 211 } 212 213 if (m_formDataBuilder.isMultiPartForm()) 214 m_formDataBuilder.addBoundaryToMultiPartHeader(encodedData, boundary, true); 215 216 result->appendData(encodedData.data(), encodedData.size()); 217 return result; 218 } 219 220 } 221 222 #endif 223
