SubframeLoader.cpp [plain text]
#include "config.h"
#include "SubframeLoader.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "ContentSecurityPolicy.h"
#include "DiagnosticLoggingKeys.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "HTMLAppletElement.h"
#include "HTMLFrameElementBase.h"
#include "HTMLNames.h"
#include "HTMLPlugInImageElement.h"
#include "MIMETypeRegistry.h"
#include "Page.h"
#include "PluginData.h"
#include "PluginDocument.h"
#include "RenderEmbeddedObject.h"
#include "RenderView.h"
#include "ScriptController.h"
#include "SecurityOrigin.h"
#include "SecurityPolicy.h"
#include "Settings.h"
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
#include "HTMLMediaElement.h"
#include "RenderVideo.h"
#endif
namespace WebCore {
using namespace HTMLNames;
SubframeLoader::SubframeLoader(Frame* frame)
: m_containsPlugins(false)
, m_frame(frame)
{
}
void SubframeLoader::clear()
{
m_containsPlugins = false;
}
bool SubframeLoader::requestFrame(HTMLFrameOwnerElement* ownerElement, const String& urlString, const AtomicString& frameName, bool lockHistory, bool lockBackForwardList)
{
KURL scriptURL;
KURL url;
if (protocolIsJavaScript(urlString)) {
scriptURL = completeURL(urlString); url = blankURL();
} else
url = completeURL(urlString);
Frame* frame = loadOrRedirectSubframe(ownerElement, url, frameName, lockHistory, lockBackForwardList);
if (!frame)
return false;
if (!scriptURL.isEmpty())
frame->script()->executeIfJavaScriptURL(scriptURL);
return true;
}
bool SubframeLoader::resourceWillUsePlugin(const String& url, const String& mimeType, bool shouldPreferPlugInsForImages)
{
KURL completedURL;
if (!url.isEmpty())
completedURL = completeURL(url);
bool useFallback;
return shouldUsePlugin(completedURL, mimeType, shouldPreferPlugInsForImages, false, useFallback);
}
bool SubframeLoader::pluginIsLoadable(HTMLPlugInImageElement* pluginElement, const KURL& url, const String& mimeType)
{
Settings* settings = m_frame->settings();
if (!settings)
return false;
if (MIMETypeRegistry::isJavaAppletMIMEType(mimeType)) {
if (!settings->isJavaEnabled())
return false;
if (document() && document()->securityOrigin()->isLocal() && !settings->isJavaEnabledForLocalFiles())
return false;
}
if (document()) {
if (document()->isSandboxed(SandboxPlugins))
return false;
if (!document()->securityOrigin()->canDisplay(url)) {
FrameLoader::reportLocalLoadFailed(m_frame, url.string());
return false;
}
String declaredMimeType = document()->isPluginDocument() && document()->ownerElement() ?
document()->ownerElement()->fastGetAttribute(HTMLNames::typeAttr) :
pluginElement->fastGetAttribute(HTMLNames::typeAttr);
if (!document()->contentSecurityPolicy()->allowObjectFromSource(url)
|| !document()->contentSecurityPolicy()->allowPluginType(mimeType, declaredMimeType, url)) {
RenderEmbeddedObject* renderer = pluginElement->renderEmbeddedObject();
renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginBlockedByContentSecurityPolicy);
return false;
}
if (m_frame->loader() && !m_frame->loader()->mixedContentChecker()->canRunInsecureContent(document()->securityOrigin(), url))
return false;
}
return true;
}
bool SubframeLoader::requestPlugin(HTMLPlugInImageElement* ownerElement, const KURL& url, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback)
{
if ((!allowPlugins(AboutToInstantiatePlugin) && !MIMETypeRegistry::isApplicationPluginMIMEType(mimeType)))
return false;
if (!pluginIsLoadable(ownerElement, url, mimeType))
return false;
ASSERT(ownerElement->hasTagName(objectTag) || ownerElement->hasTagName(embedTag));
return loadPlugin(ownerElement, url, mimeType, paramNames, paramValues, useFallback);
}
static String findPluginMIMETypeFromURL(Page* page, const String& url)
{
if (!url)
return String();
size_t dotIndex = url.reverseFind('.');
if (dotIndex == notFound)
return String();
String extension = url.substring(dotIndex + 1);
PluginData* pluginData = page->pluginData();
if (!pluginData)
return String();
for (size_t i = 0; i < pluginData->mimes().size(); ++i) {
const MimeClassInfo& mimeClassInfo = pluginData->mimes()[i];
for (size_t j = 0; j < mimeClassInfo.extensions.size(); ++j) {
if (equalIgnoringCase(extension, mimeClassInfo.extensions[j]))
return mimeClassInfo.type;
}
}
return String();
}
static void logPluginRequest(Page* page, const String& mimeType, const String& url, bool success)
{
if (!page || !page->settings()->diagnosticLoggingEnabled())
return;
String newMIMEType = mimeType;
if (!newMIMEType) {
newMIMEType = findPluginMIMETypeFromURL(page, url);
if (!newMIMEType)
return;
}
PluginData* pluginData = page->pluginData();
String pluginFile = pluginData ? pluginData->pluginFileForMimeType(newMIMEType) : String();
String description = !pluginFile ? newMIMEType : pluginFile;
ChromeClient* client = page->chrome().client();
client->logDiagnosticMessage(success ? DiagnosticLoggingKeys::pluginLoadedKey() : DiagnosticLoggingKeys::pluginLoadingFailedKey(), description, DiagnosticLoggingKeys::noopKey());
if (!page->hasSeenAnyPlugin())
client->logDiagnosticMessage(DiagnosticLoggingKeys::pageContainsAtLeastOnePluginKey(), emptyString(), DiagnosticLoggingKeys::noopKey());
if (!page->hasSeenPlugin(description))
client->logDiagnosticMessage(DiagnosticLoggingKeys::pageContainsPluginKey(), description, DiagnosticLoggingKeys::noopKey());
page->sawPlugin(description);
}
bool SubframeLoader::requestObject(HTMLPlugInImageElement* ownerElement, const String& url, const AtomicString& frameName, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues)
{
if (url.isEmpty() && mimeType.isEmpty())
return false;
RenderEmbeddedObject* renderer = ownerElement->renderEmbeddedObject();
ASSERT(renderer);
if (!renderer)
return false;
KURL completedURL;
if (!url.isEmpty())
completedURL = completeURL(url);
bool useFallback;
if (shouldUsePlugin(completedURL, mimeType, ownerElement->shouldPreferPlugInsForImages(), renderer->hasFallbackContent(), useFallback)) {
bool success = requestPlugin(ownerElement, completedURL, mimeType, paramNames, paramValues, useFallback);
logPluginRequest(document()->page(), mimeType, completedURL, success);
return success;
}
return loadOrRedirectSubframe(ownerElement, completedURL, frameName, true, true);
}
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
PassRefPtr<Widget> SubframeLoader::loadMediaPlayerProxyPlugin(Node* node, const KURL& url,
const Vector<String>& paramNames, const Vector<String>& paramValues)
{
ASSERT(node->hasTagName(videoTag) || node->hasTagName(audioTag));
KURL completedURL;
if (!url.isEmpty())
completedURL = completeURL(url);
if (!m_frame->document()->securityOrigin()->canDisplay(completedURL)) {
FrameLoader::reportLocalLoadFailed(m_frame, completedURL.string());
return 0;
}
if (!m_frame->document()->contentSecurityPolicy()->allowMediaFromSource(completedURL))
return 0;
HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(node);
RenderPart* renderer = toRenderPart(node->renderer());
IntSize size;
if (renderer)
size = roundedIntSize(LayoutSize(renderer->contentWidth(), renderer->contentHeight()));
else if (mediaElement->isVideo())
size = RenderVideo::defaultSize();
if (!m_frame->loader()->mixedContentChecker()->canRunInsecureContent(m_frame->document()->securityOrigin(), completedURL))
return 0;
RefPtr<Widget> widget = m_frame->loader()->client()->createMediaPlayerProxyPlugin(size, mediaElement, completedURL,
paramNames, paramValues, "application/x-media-element-proxy-plugin");
if (widget && renderer) {
renderer->setWidget(widget);
renderer->node()->setNeedsStyleRecalc(SyntheticStyleChange);
}
m_containsPlugins = true;
return widget ? widget.release() : 0;
}
#endif // ENABLE(PLUGIN_PROXY_FOR_VIDEO)
PassRefPtr<Widget> SubframeLoader::createJavaAppletWidget(const IntSize& size, HTMLAppletElement* element, const Vector<String>& paramNames, const Vector<String>& paramValues)
{
String baseURLString;
String codeBaseURLString;
for (size_t i = 0; i < paramNames.size(); ++i) {
if (equalIgnoringCase(paramNames[i], "baseurl"))
baseURLString = paramValues[i];
else if (equalIgnoringCase(paramNames[i], "codebase"))
codeBaseURLString = paramValues[i];
}
if (!codeBaseURLString.isEmpty()) {
KURL codeBaseURL = completeURL(codeBaseURLString);
if (!element->document()->securityOrigin()->canDisplay(codeBaseURL)) {
FrameLoader::reportLocalLoadFailed(m_frame, codeBaseURL.string());
return 0;
}
const char javaAppletMimeType[] = "application/x-java-applet";
if (!element->document()->contentSecurityPolicy()->allowObjectFromSource(codeBaseURL)
|| !element->document()->contentSecurityPolicy()->allowPluginType(javaAppletMimeType, javaAppletMimeType, codeBaseURL))
return 0;
}
if (baseURLString.isEmpty())
baseURLString = m_frame->document()->baseURL().string();
KURL baseURL = completeURL(baseURLString);
RefPtr<Widget> widget;
if (allowPlugins(AboutToInstantiatePlugin))
widget = m_frame->loader()->client()->createJavaAppletWidget(size, element, baseURL, paramNames, paramValues);
logPluginRequest(document()->page(), element->serviceType(), String(), widget);
if (!widget) {
RenderEmbeddedObject* renderer = element->renderEmbeddedObject();
if (!renderer->isPluginUnavailable())
renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
return 0;
}
m_containsPlugins = true;
return widget;
}
Frame* SubframeLoader::loadOrRedirectSubframe(HTMLFrameOwnerElement* ownerElement, const KURL& url, const AtomicString& frameName, bool lockHistory, bool lockBackForwardList)
{
Frame* frame = ownerElement->contentFrame();
if (frame)
frame->navigationScheduler()->scheduleLocationChange(m_frame->document()->securityOrigin(), url.string(), m_frame->loader()->outgoingReferrer(), lockHistory, lockBackForwardList);
else
frame = loadSubframe(ownerElement, url, frameName, m_frame->loader()->outgoingReferrer());
ASSERT(ownerElement->contentFrame() == frame || !ownerElement->contentFrame());
return ownerElement->contentFrame();
}
Frame* SubframeLoader::loadSubframe(HTMLFrameOwnerElement* ownerElement, const KURL& url, const String& name, const String& referrer)
{
RefPtr<Frame> protect(m_frame);
bool allowsScrolling = true;
int marginWidth = -1;
int marginHeight = -1;
if (ownerElement->hasTagName(frameTag) || ownerElement->hasTagName(iframeTag)) {
HTMLFrameElementBase* o = static_cast<HTMLFrameElementBase*>(ownerElement);
allowsScrolling = o->scrollingMode() != ScrollbarAlwaysOff;
marginWidth = o->marginWidth();
marginHeight = o->marginHeight();
}
if (!ownerElement->document()->securityOrigin()->canDisplay(url)) {
FrameLoader::reportLocalLoadFailed(m_frame, url.string());
return 0;
}
String referrerToUse = SecurityPolicy::generateReferrerHeader(ownerElement->document()->referrerPolicy(), url, referrer);
RefPtr<Frame> frame = m_frame->loader()->client()->createFrame(url, name, ownerElement, referrerToUse, allowsScrolling, marginWidth, marginHeight);
if (!frame) {
m_frame->loader()->checkCallImplicitClose();
return 0;
}
frame->loader()->started();
RenderObject* renderer = ownerElement->renderer();
FrameView* view = frame->view();
if (renderer && renderer->isWidget() && view)
toRenderWidget(renderer)->setWidget(view);
m_frame->loader()->checkCallImplicitClose();
if (frame->loader()->state() == FrameStateComplete && !frame->loader()->policyDocumentLoader())
frame->loader()->checkCompleted();
return frame.get();
}
bool SubframeLoader::allowPlugins(ReasonForCallingAllowPlugins reason)
{
Settings* settings = m_frame->settings();
bool allowed = m_frame->loader()->client()->allowPlugins(settings && settings->arePluginsEnabled());
if (!allowed && reason == AboutToInstantiatePlugin)
m_frame->loader()->client()->didNotAllowPlugins();
return allowed;
}
bool SubframeLoader::shouldUsePlugin(const KURL& url, const String& mimeType, bool shouldPreferPlugInsForImages, bool hasFallback, bool& useFallback)
{
if (m_frame->loader()->client()->shouldAlwaysUsePluginDocument(mimeType)) {
useFallback = false;
return true;
}
if (m_frame->page() && (mimeType == "image/tiff" || mimeType == "image/tif" || mimeType == "image/x-tiff")) {
const PluginData* pluginData = m_frame->page()->pluginData();
String pluginName = pluginData ? pluginData->pluginNameForMimeType(mimeType) : String();
if (!pluginName.isEmpty() && !pluginName.contains("QuickTime", false))
return true;
}
ObjectContentType objectType = m_frame->loader()->client()->objectContentType(url, mimeType, shouldPreferPlugInsForImages);
useFallback = objectType == ObjectContentNone && hasFallback;
return objectType == ObjectContentNone || objectType == ObjectContentNetscapePlugin || objectType == ObjectContentOtherPlugin;
}
Document* SubframeLoader::document() const
{
return m_frame->document();
}
bool SubframeLoader::loadPlugin(HTMLPlugInImageElement* pluginElement, const KURL& url, const String& mimeType,
const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback)
{
RenderEmbeddedObject* renderer = pluginElement->renderEmbeddedObject();
if (!renderer || useFallback)
return false;
pluginElement->subframeLoaderWillCreatePlugIn(url);
IntSize contentSize = roundedIntSize(LayoutSize(renderer->contentWidth(), renderer->contentHeight()));
bool loadManually = document()->isPluginDocument() && !m_containsPlugins && toPluginDocument(document())->shouldLoadPluginManually();
RefPtr<Widget> widget = m_frame->loader()->client()->createPlugin(contentSize,
pluginElement, url, paramNames, paramValues, mimeType, loadManually);
if (!widget) {
if (!renderer->isPluginUnavailable())
renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
return false;
}
pluginElement->subframeLoaderDidCreatePlugIn(widget.get());
renderer->setWidget(widget);
m_containsPlugins = true;
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
pluginElement->setNeedsStyleRecalc(SyntheticStyleChange);
#endif
return true;
}
KURL SubframeLoader::completeURL(const String& url) const
{
ASSERT(m_frame->document());
return m_frame->document()->completeURL(url);
}
}