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FrameLoader.cpp
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FrameLoader.cpp
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/*
* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
* Copyright (C) 2008 Alp Toker <alp@atoker.com>
* Copyright (C) Research In Motion Limited 2009. All rights reserved.
* Copyright (C) 2011 Kris Jordan <krisjordan@gmail.com>
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "FrameLoader.h"
#include "AXObjectCache.h"
#include "ApplicationCacheHost.h"
#include "BackForwardController.h"
#include "BeforeUnloadEvent.h"
#include "MemoryCache.h"
#include "CachedPage.h"
#include "CachedResourceLoader.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "Console.h"
#include "ContentSecurityPolicy.h"
#include "DOMImplementation.h"
#include "DOMWindow.h"
#include "DatabaseManager.h"
#include "Document.h"
#include "DocumentLoadTiming.h"
#include "DocumentLoader.h"
#include "Editor.h"
#include "EditorClient.h"
#include "Element.h"
#include "Event.h"
#include "EventNames.h"
#include "FloatRect.h"
#include "FormState.h"
#include "FormSubmission.h"
#include "Frame.h"
#include "FrameLoadRequest.h"
#include "FrameLoaderClient.h"
#include "FrameNetworkingContext.h"
#include "FrameTree.h"
#include "FrameView.h"
#include "HTMLAnchorElement.h"
#include "HTMLFormElement.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "HTMLObjectElement.h"
#include "HTMLParserIdioms.h"
#include "HTTPParsers.h"
#include "HistoryItem.h"
#include "InspectorController.h"
#include "InspectorInstrumentation.h"
#include "LoaderStrategy.h"
#include "Logging.h"
#include "MIMETypeRegistry.h"
#include "MainResourceLoader.h"
#include "Page.h"
#include "PageCache.h"
#include "PageTransitionEvent.h"
#include "PlatformStrategies.h"
#include "PluginData.h"
#include "PluginDatabase.h"
#include "PluginDocument.h"
#include "ProgressTracker.h"
#include "ResourceHandle.h"
#include "ResourceRequest.h"
#include "SchemeRegistry.h"
#include "ScriptCallStack.h"
#include "ScriptController.h"
#include "ScriptSourceCode.h"
#include "ScrollAnimator.h"
#include "SecurityOrigin.h"
#include "SecurityPolicy.h"
#include "SegmentedString.h"
#include "SerializedScriptValue.h"
#include "Settings.h"
#include "TextResourceDecoder.h"
#include "WebCoreMemoryInstrumentation.h"
#include "WindowFeatures.h"
#include "XMLDocumentParser.h"
#include <wtf/CurrentTime.h>
#include <wtf/MemoryInstrumentationHashSet.h>
#include <wtf/StdLibExtras.h>
#include <wtf/text/CString.h>
#include <wtf/text/WTFString.h>
#if ENABLE(SHARED_WORKERS)
#include "SharedWorkerRepository.h"
#endif
#if ENABLE(SVG)
#include "SVGDocument.h"
#include "SVGLocatable.h"
#include "SVGNames.h"
#include "SVGPreserveAspectRatio.h"
#include "SVGSVGElement.h"
#include "SVGViewElement.h"
#include "SVGViewSpec.h"
#endif
#if ENABLE(WEB_ARCHIVE) || ENABLE(MHTML)
#include "Archive.h"
#endif
namespace WebCore {
using namespace HTMLNames;
#if ENABLE(SVG)
using namespace SVGNames;
#endif
static const char defaultAcceptHeader[] = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
static double storedTimeOfLastCompletedLoad;
bool isBackForwardLoadType(FrameLoadType type)
{
switch (type) {
case FrameLoadTypeStandard:
case FrameLoadTypeReload:
case FrameLoadTypeReloadFromOrigin:
case FrameLoadTypeSame:
case FrameLoadTypeRedirectWithLockedBackForwardList:
case FrameLoadTypeReplace:
return false;
case FrameLoadTypeBack:
case FrameLoadTypeForward:
case FrameLoadTypeIndexedBackForward:
return true;
}
ASSERT_NOT_REACHED();
return false;
}
// This is not in the FrameLoader class to emphasize that it does not depend on
// private FrameLoader data, and to avoid increasing the number of public functions
// with access to private data. Since only this .cpp file needs it, making it
// non-member lets us exclude it from the header file, thus keeping FrameLoader.h's
// API simpler.
//
static bool isDocumentSandboxed(Frame* frame, SandboxFlags mask)
{
return frame->document() && frame->document()->isSandboxed(mask);
}
class FrameLoader::FrameProgressTracker {
public:
static PassOwnPtr<FrameProgressTracker> create(Frame* frame) { return adoptPtr(new FrameProgressTracker(frame)); }
~FrameProgressTracker()
{
ASSERT(!m_inProgress || m_frame->page());
if (m_inProgress)
m_frame->page()->progress()->progressCompleted(m_frame);
}
void progressStarted()
{
ASSERT(m_frame->page());
if (!m_inProgress)
m_frame->page()->progress()->progressStarted(m_frame);
m_inProgress = true;
}
void progressCompleted()
{
ASSERT(m_inProgress);
ASSERT(m_frame->page());
m_inProgress = false;
m_frame->page()->progress()->progressCompleted(m_frame);
}
private:
FrameProgressTracker(Frame* frame)
: m_frame(frame)
, m_inProgress(false)
{
}
Frame* m_frame;
bool m_inProgress;
};
FrameLoader::FrameLoader(Frame* frame, FrameLoaderClient* client)
: m_frame(frame)
, m_client(client)
, m_policyChecker(frame)
, m_history(frame)
, m_notifer(frame)
, m_subframeLoader(frame)
, m_icon(frame)
, m_mixedContentChecker(frame)
, m_state(FrameStateProvisional)
, m_loadType(FrameLoadTypeStandard)
, m_delegateIsHandlingProvisionalLoadError(false)
, m_quickRedirectComing(false)
, m_sentRedirectNotification(false)
, m_inStopAllLoaders(false)
, m_isExecutingJavaScriptFormAction(false)
, m_didCallImplicitClose(true)
, m_wasUnloadEventEmitted(false)
, m_pageDismissalEventBeingDispatched(NoDismissal)
, m_isComplete(false)
, m_needsClear(false)
, m_checkTimer(this, &FrameLoader::checkTimerFired)
, m_shouldCallCheckCompleted(false)
, m_shouldCallCheckLoadComplete(false)
, m_opener(0)
, m_didPerformFirstNavigation(false)
, m_loadingFromCachedPage(false)
, m_suppressOpenerInNewFrame(false)
, m_forcedSandboxFlags(SandboxNone)
{
}
FrameLoader::~FrameLoader()
{
setOpener(0);
HashSet<Frame*>::iterator end = m_openedFrames.end();
for (HashSet<Frame*>::iterator it = m_openedFrames.begin(); it != end; ++it)
(*it)->loader()->m_opener = 0;
m_client->frameLoaderDestroyed();
if (m_networkingContext)
m_networkingContext->invalidate();
}
void FrameLoader::init()
{
// This somewhat odd set of steps gives the frame an initial empty document.
setPolicyDocumentLoader(m_client->createDocumentLoader(ResourceRequest(KURL(ParsedURLString, emptyString())), SubstituteData()).get());
setProvisionalDocumentLoader(m_policyDocumentLoader.get());
m_provisionalDocumentLoader->startLoadingMainResource();
m_frame->document()->cancelParsing();
m_stateMachine.advanceTo(FrameLoaderStateMachine::DisplayingInitialEmptyDocument);
m_networkingContext = m_client->createNetworkingContext();
m_progressTracker = FrameProgressTracker::create(m_frame);
}
void FrameLoader::setDefersLoading(bool defers)
{
if (m_documentLoader)
m_documentLoader->setDefersLoading(defers);
if (m_provisionalDocumentLoader)
m_provisionalDocumentLoader->setDefersLoading(defers);
if (m_policyDocumentLoader)
m_policyDocumentLoader->setDefersLoading(defers);
history()->setDefersLoading(defers);
if (!defers) {
m_frame->navigationScheduler()->startTimer();
startCheckCompleteTimer();
}
}
void FrameLoader::changeLocation(SecurityOrigin* securityOrigin, const KURL& url, const String& referrer, bool lockHistory, bool lockBackForwardList, bool refresh)
{
urlSelected(FrameLoadRequest(securityOrigin, ResourceRequest(url, referrer, refresh ? ReloadIgnoringCacheData : UseProtocolCachePolicy), "_self"),
0, lockHistory, lockBackForwardList, MaybeSendReferrer, ReplaceDocumentIfJavaScriptURL);
}
void FrameLoader::urlSelected(const KURL& url, const String& passedTarget, PassRefPtr<Event> triggeringEvent, bool lockHistory, bool lockBackForwardList, ShouldSendReferrer shouldSendReferrer)
{
urlSelected(FrameLoadRequest(m_frame->document()->securityOrigin(), ResourceRequest(url), passedTarget),
triggeringEvent, lockHistory, lockBackForwardList, shouldSendReferrer, DoNotReplaceDocumentIfJavaScriptURL);
}
// The shouldReplaceDocumentIfJavaScriptURL parameter will go away when the FIXME to eliminate the
// corresponding parameter from ScriptController::executeIfJavaScriptURL() is addressed.
void FrameLoader::urlSelected(const FrameLoadRequest& passedRequest, PassRefPtr<Event> triggeringEvent, bool lockHistory, bool lockBackForwardList, ShouldSendReferrer shouldSendReferrer, ShouldReplaceDocumentIfJavaScriptURL shouldReplaceDocumentIfJavaScriptURL)
{
ASSERT(!m_suppressOpenerInNewFrame);
RefPtr<Frame> protect(m_frame);
FrameLoadRequest frameRequest(passedRequest);
if (m_frame->script()->executeIfJavaScriptURL(frameRequest.resourceRequest().url(), shouldReplaceDocumentIfJavaScriptURL))
return;
if (frameRequest.frameName().isEmpty())
frameRequest.setFrameName(m_frame->document()->baseTarget());
if (shouldSendReferrer == NeverSendReferrer)
m_suppressOpenerInNewFrame = true;
if (frameRequest.resourceRequest().httpReferrer().isEmpty())
frameRequest.resourceRequest().setHTTPReferrer(outgoingReferrer());
addHTTPOriginIfNeeded(frameRequest.resourceRequest(), outgoingOrigin());
loadFrameRequest(frameRequest, lockHistory, lockBackForwardList, triggeringEvent, 0, shouldSendReferrer);
m_suppressOpenerInNewFrame = false;
}
void FrameLoader::submitForm(PassRefPtr<FormSubmission> submission)
{
ASSERT(submission->method() == FormSubmission::PostMethod || submission->method() == FormSubmission::GetMethod);
// FIXME: Find a good spot for these.
ASSERT(submission->data());
ASSERT(submission->state());
ASSERT(!submission->state()->sourceDocument()->frame() || submission->state()->sourceDocument()->frame() == m_frame);
if (!m_frame->page())
return;
if (submission->action().isEmpty())
return;
if (isDocumentSandboxed(m_frame, SandboxForms)) {
// FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
m_frame->document()->addConsoleMessage(HTMLMessageSource, ErrorMessageLevel, "Blocked form submission to '" + submission->action().string() + "' because the form's frame is sandboxed and the 'allow-forms' permission is not set.");
return;
}
if (protocolIsJavaScript(submission->action())) {
if (!m_frame->document()->contentSecurityPolicy()->allowFormAction(KURL(submission->action())))
return;
m_isExecutingJavaScriptFormAction = true;
m_frame->script()->executeIfJavaScriptURL(submission->action(), DoNotReplaceDocumentIfJavaScriptURL);
m_isExecutingJavaScriptFormAction = false;
return;
}
Frame* targetFrame = findFrameForNavigation(submission->target(), submission->state()->sourceDocument());
if (!targetFrame) {
if (!DOMWindow::allowPopUp(m_frame) && !ScriptController::processingUserGesture())
return;
targetFrame = m_frame;
} else
submission->clearTarget();
if (!targetFrame->page())
return;
// FIXME: We'd like to remove this altogether and fix the multiple form submission issue another way.
// We do not want to submit more than one form from the same page, nor do we want to submit a single
// form more than once. This flag prevents these from happening; not sure how other browsers prevent this.
// The flag is reset in each time we start handle a new mouse or key down event, and
// also in setView since this part may get reused for a page from the back/forward cache.
// The form multi-submit logic here is only needed when we are submitting a form that affects this frame.
// FIXME: Frame targeting is only one of the ways the submission could end up doing something other
// than replacing this frame's content, so this check is flawed. On the other hand, the check is hardly
// needed any more now that we reset m_submittedFormURL on each mouse or key down event.
if (m_frame->tree()->isDescendantOf(targetFrame)) {
if (m_submittedFormURL == submission->requestURL())
return;
m_submittedFormURL = submission->requestURL();
}
submission->data()->generateFiles(m_frame->document());
submission->setReferrer(outgoingReferrer());
submission->setOrigin(outgoingOrigin());
targetFrame->navigationScheduler()->scheduleFormSubmission(submission);
}
void FrameLoader::stopLoading(UnloadEventPolicy unloadEventPolicy)
{
if (m_frame->document() && m_frame->document()->parser())
m_frame->document()->parser()->stopParsing();
if (unloadEventPolicy != UnloadEventPolicyNone) {
if (m_frame->document()) {
if (m_didCallImplicitClose && !m_wasUnloadEventEmitted) {
Node* currentFocusedNode = m_frame->document()->focusedNode();
if (currentFocusedNode && currentFocusedNode->toInputElement())
currentFocusedNode->toInputElement()->endEditing();
if (m_pageDismissalEventBeingDispatched == NoDismissal) {
if (unloadEventPolicy == UnloadEventPolicyUnloadAndPageHide) {
m_pageDismissalEventBeingDispatched = PageHideDismissal;
m_frame->document()->domWindow()->dispatchEvent(PageTransitionEvent::create(eventNames().pagehideEvent, m_frame->document()->inPageCache()), m_frame->document());
}
if (!m_frame->document()->inPageCache()) {
RefPtr<Event> unloadEvent(Event::create(eventNames().unloadEvent, false, false));
// The DocumentLoader (and thus its DocumentLoadTiming) might get destroyed
// while dispatching the event, so protect it to prevent writing the end
// time into freed memory.
RefPtr<DocumentLoader> documentLoader = m_provisionalDocumentLoader;
m_pageDismissalEventBeingDispatched = UnloadDismissal;
if (documentLoader && !documentLoader->timing()->unloadEventStart() && !documentLoader->timing()->unloadEventEnd()) {
DocumentLoadTiming* timing = documentLoader->timing();
ASSERT(timing->navigationStart());
timing->markUnloadEventStart();
m_frame->document()->domWindow()->dispatchEvent(unloadEvent, m_frame->document());
timing->markUnloadEventEnd();
} else
m_frame->document()->domWindow()->dispatchEvent(unloadEvent, m_frame->document());
}
}
m_pageDismissalEventBeingDispatched = NoDismissal;
if (m_frame->document())
m_frame->document()->updateStyleIfNeeded();
m_wasUnloadEventEmitted = true;
}
}
// Dispatching the unload event could have made m_frame->document() null.
if (m_frame->document() && !m_frame->document()->inPageCache()) {
// Don't remove event listeners from a transitional empty document (see bug 28716 for more information).
bool keepEventListeners = m_stateMachine.isDisplayingInitialEmptyDocument() && m_provisionalDocumentLoader
&& m_frame->document()->isSecureTransitionTo(m_provisionalDocumentLoader->url());
if (!keepEventListeners)
m_frame->document()->removeAllEventListeners();
}
}
m_isComplete = true; // to avoid calling completed() in finishedParsing()
m_didCallImplicitClose = true; // don't want that one either
if (m_frame->document() && m_frame->document()->parsing()) {
finishedParsing();
m_frame->document()->setParsing(false);
}
if (Document* doc = m_frame->document()) {
// FIXME: HTML5 doesn't tell us to set the state to complete when aborting, but we do anyway to match legacy behavior.
// http://www.w3.org/Bugs/Public/show_bug.cgi?id=10537
doc->setReadyState(Document::Complete);
#if ENABLE(SQL_DATABASE)
// FIXME: Should the DatabaseManager watch for something like ActiveDOMObject::stop() rather than being special-cased here?
DatabaseManager::manager().stopDatabases(doc, 0);
#endif
}
// FIXME: This will cancel redirection timer, which really needs to be restarted when restoring the frame from b/f cache.
m_frame->navigationScheduler()->cancel();
}
void FrameLoader::stop()
{
// http://bugs.webkit.org/show_bug.cgi?id=10854
// The frame's last ref may be removed and it will be deleted by checkCompleted().
RefPtr<Frame> protector(m_frame);
if (DocumentParser* parser = m_frame->document()->parser()) {
parser->stopParsing();
parser->finish();
}
icon()->stopLoader();
}
bool FrameLoader::closeURL()
{
history()->saveDocumentState();
// Should only send the pagehide event here if the current document exists and has not been placed in the page cache.
Document* currentDocument = m_frame->document();
stopLoading(currentDocument && !currentDocument->inPageCache() ? UnloadEventPolicyUnloadAndPageHide : UnloadEventPolicyUnloadOnly);
m_frame->editor()->clearUndoRedoOperations();
return true;
}
bool FrameLoader::didOpenURL()
{
if (m_frame->navigationScheduler()->redirectScheduledDuringLoad()) {
// A redirect was scheduled before the document was created.
// This can happen when one frame changes another frame's location.
return false;
}
m_frame->navigationScheduler()->cancel();
m_frame->editor()->clearLastEditCommand();
m_isComplete = false;
m_didCallImplicitClose = false;
// If we are still in the process of initializing an empty document then
// its frame is not in a consistent state for rendering, so avoid setJSStatusBarText
// since it may cause clients to attempt to render the frame.
if (!m_stateMachine.creatingInitialEmptyDocument()) {
DOMWindow* window = m_frame->document()->domWindow();
window->setStatus(String());
window->setDefaultStatus(String());
}
started();
return true;
}
void FrameLoader::didExplicitOpen()
{
m_isComplete = false;
m_didCallImplicitClose = false;
// Calling document.open counts as committing the first real document load.
if (!m_stateMachine.committedFirstRealDocumentLoad())
m_stateMachine.advanceTo(FrameLoaderStateMachine::DisplayingInitialEmptyDocumentPostCommit);
// Prevent window.open(url) -- eg window.open("about:blank") -- from blowing away results
// from a subsequent window.document.open / window.document.write call.
// Canceling redirection here works for all cases because document.open
// implicitly precedes document.write.
m_frame->navigationScheduler()->cancel();
}
void FrameLoader::cancelAndClear()
{
m_frame->navigationScheduler()->cancel();
if (!m_isComplete)
closeURL();
clear(m_frame->document(), false);
m_frame->script()->updatePlatformScriptObjects();
}
void FrameLoader::clear(Document* newDocument, bool clearWindowProperties, bool clearScriptObjects, bool clearFrameView)
{
m_frame->editor()->clear();
if (!m_needsClear)
return;
m_needsClear = false;
if (!m_frame->document()->inPageCache()) {
m_frame->document()->cancelParsing();
m_frame->document()->stopActiveDOMObjects();
if (m_frame->document()->attached()) {
m_frame->document()->prepareForDestruction();
m_frame->document()->removeFocusedNodeOfSubtree(m_frame->document());
}
}
// Do this after detaching the document so that the unload event works.
if (clearWindowProperties) {
InspectorInstrumentation::frameWindowDiscarded(m_frame, m_frame->document()->domWindow());
m_frame->document()->domWindow()->resetUnlessSuspendedForPageCache();
m_frame->script()->clearWindowShell(newDocument->domWindow(), m_frame->document()->inPageCache());
}
m_frame->selection()->prepareForDestruction();
m_frame->eventHandler()->clear();
if (clearFrameView && m_frame->view())
m_frame->view()->clear();
// Do not drop the document before the ScriptController and view are cleared
// as some destructors might still try to access the document.
m_frame->setDocument(0);
m_subframeLoader.clear();
if (clearScriptObjects)
m_frame->script()->clearScriptObjects();
m_frame->script()->enableEval();
m_frame->navigationScheduler()->clear();
m_checkTimer.stop();
m_shouldCallCheckCompleted = false;
m_shouldCallCheckLoadComplete = false;
if (m_stateMachine.isDisplayingInitialEmptyDocument() && m_stateMachine.committedFirstRealDocumentLoad())
m_stateMachine.advanceTo(FrameLoaderStateMachine::CommittedFirstRealLoad);
}
void FrameLoader::receivedFirstData()
{
dispatchDidCommitLoad();
dispatchDidClearWindowObjectsInAllWorlds();
dispatchGlobalObjectAvailableInAllWorlds();
if (m_documentLoader) {
StringWithDirection ptitle = m_documentLoader->title();
// If we have a title let the WebView know about it.
if (!ptitle.isNull())
m_client->dispatchDidReceiveTitle(ptitle);
}
if (!m_documentLoader)
return;
if (m_frame->document()->isViewSource())
return;
double delay;
String url;
if (!parseHTTPRefresh(m_documentLoader->response().httpHeaderField("Refresh"), false, delay, url))
return;
if (url.isEmpty())
url = m_frame->document()->url().string();
else
url = m_frame->document()->completeURL(url).string();
m_frame->navigationScheduler()->scheduleRedirect(delay, url);
}
void FrameLoader::setOutgoingReferrer(const KURL& url)
{
m_outgoingReferrer = url.strippedForUseAsReferrer();
}
void FrameLoader::didBeginDocument(bool dispatch)
{
m_needsClear = true;
m_isComplete = false;
m_didCallImplicitClose = false;
m_frame->document()->setReadyState(Document::Loading);
if (m_pendingStateObject) {
m_frame->document()->statePopped(m_pendingStateObject.get());
m_pendingStateObject.clear();
}
if (dispatch)
dispatchDidClearWindowObjectsInAllWorlds();
updateFirstPartyForCookies();
m_frame->document()->initContentSecurityPolicy();
Settings* settings = m_frame->document()->settings();
if (settings) {
m_frame->document()->cachedResourceLoader()->setImagesEnabled(settings->areImagesEnabled());
m_frame->document()->cachedResourceLoader()->setAutoLoadImages(settings->loadsImagesAutomatically());
}
if (m_documentLoader) {
String dnsPrefetchControl = m_documentLoader->response().httpHeaderField("X-DNS-Prefetch-Control");
if (!dnsPrefetchControl.isEmpty())
m_frame->document()->parseDNSPrefetchControlHeader(dnsPrefetchControl);
String policyValue = m_documentLoader->response().httpHeaderField("Content-Security-Policy");
if (!policyValue.isEmpty())
m_frame->document()->contentSecurityPolicy()->didReceiveHeader(policyValue, ContentSecurityPolicy::EnforceStableDirectives);
policyValue = m_documentLoader->response().httpHeaderField("Content-Security-Policy-Report-Only");
if (!policyValue.isEmpty())
m_frame->document()->contentSecurityPolicy()->didReceiveHeader(policyValue, ContentSecurityPolicy::ReportStableDirectives);
policyValue = m_documentLoader->response().httpHeaderField("X-WebKit-CSP");
if (!policyValue.isEmpty())
m_frame->document()->contentSecurityPolicy()->didReceiveHeader(policyValue, ContentSecurityPolicy::EnforceAllDirectives);
policyValue = m_documentLoader->response().httpHeaderField("X-WebKit-CSP-Report-Only");
if (!policyValue.isEmpty())
m_frame->document()->contentSecurityPolicy()->didReceiveHeader(policyValue, ContentSecurityPolicy::ReportAllDirectives);
String headerContentLanguage = m_documentLoader->response().httpHeaderField("Content-Language");
if (!headerContentLanguage.isEmpty()) {
size_t commaIndex = headerContentLanguage.find(',');
headerContentLanguage.truncate(commaIndex); // notFound == -1 == don't truncate
headerContentLanguage = headerContentLanguage.stripWhiteSpace(isHTMLSpace);
if (!headerContentLanguage.isEmpty())
m_frame->document()->setContentLanguage(headerContentLanguage);
}
if (SecurityPolicy::allowSubstituteDataAccessToLocal() && m_documentLoader->substituteData().isValid()) {
// If this document was loaded with substituteData, then the document can
// load local resources. See https://bugs.webkit.org/show_bug.cgi?id=16756
// and https://bugs.webkit.org/show_bug.cgi?id=19760 for further
// discussion.
m_frame->document()->securityOrigin()->grantLoadLocalResources();
}
}
history()->restoreDocumentState();
}
void FrameLoader::finishedParsing()
{
m_frame->injectUserScripts(InjectAtDocumentEnd);
if (m_stateMachine.creatingInitialEmptyDocument())
return;
// This can be called from the Frame's destructor, in which case we shouldn't protect ourselves
// because doing so will cause us to re-enter the destructor when protector goes out of scope.
// Null-checking the FrameView indicates whether or not we're in the destructor.
RefPtr<Frame> protector = m_frame->view() ? m_frame : 0;
m_client->dispatchDidFinishDocumentLoad();
checkCompleted();
if (!m_frame->view())
return; // We are being destroyed by something checkCompleted called.
// Check if the scrollbars are really needed for the content.
// If not, remove them, relayout, and repaint.
m_frame->view()->restoreScrollbar();
scrollToFragmentWithParentBoundary(m_frame->document()->url());
}
void FrameLoader::loadDone()
{
checkCompleted();
}
bool FrameLoader::allChildrenAreComplete() const
{
for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) {
if (!child->loader()->m_isComplete)
return false;
}
return true;
}
bool FrameLoader::allAncestorsAreComplete() const
{
for (Frame* ancestor = m_frame; ancestor; ancestor = ancestor->tree()->parent()) {
if (!ancestor->loader()->m_isComplete)
return false;
}
return true;
}
void FrameLoader::checkCompleted()
{
m_shouldCallCheckCompleted = false;
if (m_frame->view())
m_frame->view()->handleLoadCompleted();
// Have we completed before?
if (m_isComplete)
return;
// Are we still parsing?
if (m_frame->document()->parsing())
return;
// Still waiting for images/scripts?
if (m_frame->document()->cachedResourceLoader()->requestCount())
return;
// Still waiting for elements that don't go through a FrameLoader?
if (m_frame->document()->isDelayingLoadEvent())
return;
// Any frame that hasn't completed yet?
if (!allChildrenAreComplete())
return;
// OK, completed.
m_isComplete = true;
m_requestedHistoryItem = 0;
m_frame->document()->setReadyState(Document::Complete);
RefPtr<Frame> protect(m_frame);
checkCallImplicitClose(); // if we didn't do it before
m_frame->navigationScheduler()->startTimer();
completed();
if (m_frame->page())
checkLoadComplete();
if (m_frame->view())
m_frame->view()->handleLoadCompleted();
}
void FrameLoader::checkTimerFired(Timer<FrameLoader>*)
{
RefPtr<Frame> protect(m_frame);
if (Page* page = m_frame->page()) {
if (page->defersLoading())
return;
}
if (m_shouldCallCheckCompleted)
checkCompleted();
if (m_shouldCallCheckLoadComplete)
checkLoadComplete();
}
void FrameLoader::startCheckCompleteTimer()
{
if (!(m_shouldCallCheckCompleted || m_shouldCallCheckLoadComplete))
return;
if (m_checkTimer.isActive())
return;
m_checkTimer.startOneShot(0);
}
void FrameLoader::scheduleCheckCompleted()
{
m_shouldCallCheckCompleted = true;
startCheckCompleteTimer();
}
void FrameLoader::scheduleCheckLoadComplete()
{
m_shouldCallCheckLoadComplete = true;
startCheckCompleteTimer();
}
void FrameLoader::checkCallImplicitClose()
{
if (m_didCallImplicitClose || m_frame->document()->parsing() || m_frame->document()->isDelayingLoadEvent())
return;
if (!allChildrenAreComplete())
return; // still got a frame running -> too early
m_didCallImplicitClose = true;
m_wasUnloadEventEmitted = false;
m_frame->document()->implicitClose();
}
void FrameLoader::loadURLIntoChildFrame(const KURL& url, const String& referer, Frame* childFrame)
{
ASSERT(childFrame);
#if ENABLE(WEB_ARCHIVE) || ENABLE(MHTML)
RefPtr<Archive> subframeArchive = activeDocumentLoader()->popArchiveForSubframe(childFrame->tree()->uniqueName(), url);
if (subframeArchive) {
childFrame->loader()->loadArchive(subframeArchive.release());
return;
}
#endif // ENABLE(WEB_ARCHIVE)
HistoryItem* parentItem = history()->currentItem();
// If we're moving in the back/forward list, we might want to replace the content
// of this child frame with whatever was there at that point.
if (parentItem && parentItem->children().size() && isBackForwardLoadType(loadType())
&& !m_frame->document()->loadEventFinished()) {
HistoryItem* childItem = parentItem->childItemWithTarget(childFrame->tree()->uniqueName());
if (childItem) {
childFrame->loader()->loadDifferentDocumentItem(childItem, loadType(), MayAttemptCacheOnlyLoadForFormSubmissionItem);
return;
}
}
childFrame->loader()->loadURL(url, referer, "_self", false, FrameLoadTypeRedirectWithLockedBackForwardList, 0, 0);
}
#if ENABLE(WEB_ARCHIVE) || ENABLE(MHTML)
void FrameLoader::loadArchive(PassRefPtr<Archive> archive)
{
ArchiveResource* mainResource = archive->mainResource();
ASSERT(mainResource);
if (!mainResource)
return;
SubstituteData substituteData(mainResource->data(), mainResource->mimeType(), mainResource->textEncoding(), KURL());
ResourceRequest request(mainResource->url());
#if PLATFORM(MAC)
request.applyWebArchiveHackForMail();
#endif
RefPtr<DocumentLoader> documentLoader = m_client->createDocumentLoader(request, substituteData);
documentLoader->setArchive(archive.get());
load(documentLoader.get());
}
#endif // ENABLE(WEB_ARCHIVE) || ENABLE(MHTML)
ObjectContentType FrameLoader::defaultObjectContentType(const KURL& url, const String& mimeTypeIn, bool shouldPreferPlugInsForImages)
{
String mimeType = mimeTypeIn;
if (mimeType.isEmpty())
mimeType = mimeTypeFromURL(url);
#if !PLATFORM(MAC) && !PLATFORM(CHROMIUM) && !PLATFORM(EFL) // Mac has no PluginDatabase, nor does Chromium or EFL
if (mimeType.isEmpty()) {
String decodedPath = decodeURLEscapeSequences(url.path());
mimeType = PluginDatabase::installedPlugins()->MIMETypeForExtension(decodedPath.substring(decodedPath.reverseFind('.') + 1));
}
#endif
if (mimeType.isEmpty())
return ObjectContentFrame; // Go ahead and hope that we can display the content.
#if !PLATFORM(MAC) && !PLATFORM(CHROMIUM) && !PLATFORM(EFL) // Mac has no PluginDatabase, nor does Chromium or EFL
bool plugInSupportsMIMEType = PluginDatabase::installedPlugins()->isMIMETypeRegistered(mimeType);
#else
bool plugInSupportsMIMEType = false;
#endif
if (MIMETypeRegistry::isSupportedImageMIMEType(mimeType))
return shouldPreferPlugInsForImages && plugInSupportsMIMEType ? WebCore::ObjectContentNetscapePlugin : WebCore::ObjectContentImage;
if (plugInSupportsMIMEType)
return WebCore::ObjectContentNetscapePlugin;
if (MIMETypeRegistry::isSupportedNonImageMIMEType(mimeType))
return WebCore::ObjectContentFrame;
return WebCore::ObjectContentNone;
}
String FrameLoader::outgoingReferrer() const
{
// See http://www.whatwg.org/specs/web-apps/current-work/#fetching-resources
// for why we walk the parent chain for srcdoc documents.
Frame* frame = m_frame;
while (frame->document()->isSrcdocDocument()) {
frame = frame->tree()->parent();
// Srcdoc documents cannot be top-level documents, by definition,
// because they need to be contained in iframes with the srcdoc.
ASSERT(frame);
}
return frame->loader()->m_outgoingReferrer;
}
String FrameLoader::outgoingOrigin() const
{
return m_frame->document()->securityOrigin()->toString();
}
bool FrameLoader::checkIfFormActionAllowedByCSP(const KURL& url) const
{
if (m_submittedFormURL.isEmpty())
return true;
return m_frame->document()->contentSecurityPolicy()->allowFormAction(url);
}
Frame* FrameLoader::opener()
{
return m_opener;
}
void FrameLoader::setOpener(Frame* opener)
{
if (m_opener && !opener)
m_client->didDisownOpener();
if (m_opener)
m_opener->loader()->m_openedFrames.remove(m_frame);
if (opener)
opener->loader()->m_openedFrames.add(m_frame);
m_opener = opener;
if (m_frame->document())
m_frame->document()->initSecurityContext();
}
// FIXME: This does not belong in FrameLoader!
void FrameLoader::handleFallbackContent()
{
HTMLFrameOwnerElement* owner = m_frame->ownerElement();
if (!owner || !owner->hasTagName(objectTag))
return;
static_cast<HTMLObjectElement*>(owner)->renderFallbackContent();
}
void FrameLoader::provisionalLoadStarted()
{
if (m_stateMachine.firstLayoutDone())
m_stateMachine.advanceTo(FrameLoaderStateMachine::CommittedFirstRealLoad);
m_frame->navigationScheduler()->cancel(true);
m_client->provisionalLoadStarted();
}
void FrameLoader::resetMultipleFormSubmissionProtection()
{
m_submittedFormURL = KURL();
}
void FrameLoader::updateFirstPartyForCookies()
{
if (m_frame->tree()->parent())
setFirstPartyForCookies(m_frame->tree()->parent()->document()->firstPartyForCookies());
else
setFirstPartyForCookies(m_frame->document()->url());
}
void FrameLoader::setFirstPartyForCookies(const KURL& url)
{
for (Frame* frame = m_frame; frame; frame = frame->tree()->traverseNext(m_frame))