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/**
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#if ENABLE(WML)
#include "WMLGoElement.h"
#include "Attribute.h"
#include "FormData.h"
#include "FormDataBuilder.h"
#include "FormSubmission.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "HTMLNames.h"
#include "ResourceRequest.h"
#include "TextEncoding.h"
#include "WMLCardElement.h"
#include "WMLDocument.h"
#include "WMLNames.h"
#include "WMLPageState.h"
#include "WMLPostfieldElement.h"
#include "WMLTimerElement.h"
#include "WMLVariables.h"
#include <wtf/text/CString.h>
namespace WebCore {
using namespace WMLNames;
WMLGoElement::WMLGoElement(const QualifiedName& tagName, Document* doc)
: WMLTaskElement(tagName, doc)
{
}
void WMLGoElement::registerPostfieldElement(WMLPostfieldElement* postfield)
{
ASSERT(m_postfieldElements.find(postfield) == WTF::notFound);
m_postfieldElements.append(postfield);
}
void WMLGoElement::deregisterPostfieldElement(WMLPostfieldElement* postfield)
{
size_t position = m_postfieldElements.find(postfield);
ASSERT(position != WTF::notFound);
m_postfieldElements.remove(position);
}
void WMLGoElement::parseMappedAttribute(Attribute* attr)
{
if (attr->name() == HTMLNames::methodAttr)
m_formAttributes.parseMethodType(attr->value());
else if (attr->name() == HTMLNames::enctypeAttr)
m_formAttributes.parseEncodingType(parseValueSubstitutingVariableReferences(attr->value()));
else if (attr->name() == HTMLNames::accept_charsetAttr)
m_formAttributes.setAcceptCharset(parseValueForbiddingVariableReferences(attr->value()));
else
WMLTaskElement::parseMappedAttribute(attr);
}
void WMLGoElement::executeTask()
{
ASSERT(document()->isWMLDocument());
WMLDocument* document = static_cast<WMLDocument*>(this->document());
WMLPageState* pageState = wmlPageStateForDocument(document);
if (!pageState)
return;
WMLCardElement* card = document->activeCard();
if (!card)
return;
Frame* frame = document->frame();
if (!frame)
return;
FrameLoader* loader = frame->loader();
if (!loader)
return;
String href = getAttribute(HTMLNames::hrefAttr);
if (href.isEmpty())
return;
// Substitute variables within target url attribute value
KURL url = document->completeURL(substituteVariableReferences(href, document, WMLVariableEscapingEscape));
if (url.isEmpty())
return;
storeVariableState(pageState);
// Stop the timer of the current card if it is active
if (WMLTimerElement* eventTimer = card->eventTimer())
eventTimer->stop();
// FIXME: 'newcontext' handling not implemented for external cards
bool inSameDeck = document->url().path() == url.path();
if (inSameDeck && url.hasFragmentIdentifier()) {
if (WMLCardElement* card = WMLCardElement::findNamedCardInDocument(document, url.fragmentIdentifier())) {
if (card->isNewContext())
pageState->reset();
}
}
// Prepare loading the destination url
ResourceRequest request(url);
if (getAttribute(sendrefererAttr) == "true")
request.setHTTPReferrer(loader->outgoingReferrer());
String cacheControl = getAttribute(cache_controlAttr);
if (m_formAttributes.method() == FormSubmission::PostMethod)
preparePOSTRequest(request, inSameDeck, cacheControl);
else
prepareGETRequest(request, url);
// Set HTTP cache-control header if needed
if (!cacheControl.isEmpty()) {
request.setHTTPHeaderField("cache-control", cacheControl);
if (cacheControl == "no-cache")
request.setCachePolicy(ReloadIgnoringCacheData);
}
loader->load(request, false);
}
void WMLGoElement::preparePOSTRequest(ResourceRequest& request, bool inSameDeck, const String& cacheControl)
{
request.setHTTPMethod("POST");
if (inSameDeck && cacheControl != "no-cache") {
request.setCachePolicy(ReturnCacheDataDontLoad);
return;
}
RefPtr<FormData> data;
if (m_formAttributes.isMultiPartForm()) { // multipart/form-data
Vector<char> boundary = FormDataBuilder::generateUniqueBoundaryString();
data = createFormData(boundary.data());
request.setHTTPContentType(m_formAttributes.encodingType() + "; boundary=" + boundary.data());
} else {
// text/plain or application/x-www-form-urlencoded
data = createFormData(CString());
request.setHTTPContentType(m_formAttributes.encodingType());
}
request.setHTTPBody(data.get());
}
void WMLGoElement::prepareGETRequest(ResourceRequest& request, const KURL& url)
{
request.setHTTPMethod("GET");
// Eventually display error message?
if (m_formAttributes.isMultiPartForm())
return;
RefPtr<FormData> data = createFormData(CString());
KURL remoteURL(url);
remoteURL.setQuery(data->flattenToString());
request.setURL(remoteURL);
}
PassRefPtr<FormData> WMLGoElement::createFormData(const CString& boundary)
{
CString key;
CString value;
Vector<char> encodedData;
TextEncoding encoding = FormDataBuilder::encodingFromAcceptCharset(m_formAttributes.acceptCharset(), document()).encodingForFormSubmission();
Vector<WMLPostfieldElement*>::iterator it = m_postfieldElements.begin();
Vector<WMLPostfieldElement*>::iterator end = m_postfieldElements.end();
RefPtr<FormData> result = FormData::create();
for (; it != end; ++it) {
(*it)->encodeData(encoding, key, value);
if (m_formAttributes.isMultiPartForm()) {
Vector<char> header;
FormDataBuilder::beginMultiPartHeader(header, boundary, key);
FormDataBuilder::finishMultiPartHeader(header);
result->appendData(header.data(), header.size());
if (size_t dataSize = value.length())
result->appendData(value.data(), dataSize);
result->appendData("\r\n", 2);
} else
FormDataBuilder::addKeyValuePairAsFormData(encodedData, key, value);
}
if (m_formAttributes.isMultiPartForm())
FormDataBuilder::addBoundaryToMultiPartHeader(encodedData, boundary, true);
result->appendData(encodedData.data(), encodedData.size());
return result;
}
}
#endif
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