Example #1
0
static bool isCharsetSpecifyingNode(Node* node)
{
    if (!node->isHTMLElement())
        return false;

    HTMLElement* element = toHTMLElement(node);
    if (!element->hasTagName(HTMLNames::metaTag))
        return false;
    HTMLMetaCharsetParser::AttributeList attributes;
    const NamedNodeMap* attributesMap = element->attributes(true);
    for (unsigned i = 0; i < attributesMap->length(); ++i) {
        Attribute* item = attributesMap->attributeItem(i);
        // FIXME: We should deal appropriately with the attribute if they have a namespace.
        attributes.append(make_pair(item->name().toString(), item->value().string()));
    }
    TextEncoding textEncoding = HTMLMetaCharsetParser::encodingFromMetaAttributes(attributes);
    return textEncoding.isValid();
}
Example #2
0
void RenderPartObject::updateWidget(bool onlyCreateNonNetscapePlugins)
{
  String url;
  String serviceType;
  Vector<String> paramNames;
  Vector<String> paramValues;
  Frame* frame = m_view->frame();
  
  if (element()->hasTagName(objectTag)) {

      HTMLObjectElement* o = static_cast<HTMLObjectElement*>(element());

      o->setNeedWidgetUpdate(false);
      if (!o->isFinishedParsingChildren())
        return;
      // Check for a child EMBED tag.
      HTMLEmbedElement* embed = 0;
      for (Node* child = o->firstChild(); child;) {
          if (child->hasTagName(embedTag)) {
              embed = static_cast<HTMLEmbedElement*>(child);
              break;
          } else if (child->hasTagName(objectTag))
              child = child->nextSibling();         // Don't descend into nested OBJECT tags
          else
              child = child->traverseNextNode(o);   // Otherwise descend (EMBEDs may be inside COMMENT tags)
      }
      
      // Use the attributes from the EMBED tag instead of the OBJECT tag including WIDTH and HEIGHT.
      HTMLElement *embedOrObject;
      if (embed) {
          embedOrObject = (HTMLElement *)embed;
          url = embed->url();
          serviceType = embed->serviceType();
      } else
          embedOrObject = (HTMLElement *)o;
      
      // If there was no URL or type defined in EMBED, try the OBJECT tag.
      if (url.isEmpty())
          url = o->m_url;
      if (serviceType.isEmpty())
          serviceType = o->m_serviceType;
      
      HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;
      
      // Scan the PARAM children.
      // Get the URL and type from the params if we don't already have them.
      // Get the attributes from the params if there is no EMBED tag.
      Node *child = o->firstChild();
      while (child && (url.isEmpty() || serviceType.isEmpty() || !embed)) {
          if (child->hasTagName(paramTag)) {
              HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
              String name = p->name().lower();
              if (url.isEmpty() && (name == "src" || name == "movie" || name == "code" || name == "url"))
                  url = p->value();
              if (serviceType.isEmpty() && name == "type") {
                  serviceType = p->value();
                  int pos = serviceType.find(";");
                  if (pos != -1)
                      serviceType = serviceType.left(pos);
              }
              if (!embed && !name.isEmpty()) {
                  uniqueParamNames.add(p->name().impl());
                  paramNames.append(p->name());
                  paramValues.append(p->value());
              }
          }
          child = child->nextSibling();
      }
      
      // When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag
      // points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is
      // in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means
      // we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,
      // else our Java plugin will misinterpret it. [4004531]
      String codebase;
      if (!embed && MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
          codebase = "codebase";
          uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
      }
      
      // Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values.
      NamedAttrMap* attributes = embedOrObject->attributes();
      if (attributes) {
          for (unsigned i = 0; i < attributes->length(); ++i) {
              Attribute* it = attributes->attributeItem(i);
              const AtomicString& name = it->name().localName();
              if (embed || !uniqueParamNames.contains(name.impl())) {
                  paramNames.append(name.string());
                  paramValues.append(it->value().string());
              }
          }
      }
      
      // If we still don't have a type, try to map from a specific CLASSID to a type.
      if (serviceType.isEmpty() && !o->m_classId.isEmpty())
          mapClassIdToServiceType(o->m_classId, serviceType);
      
      if (!isURLAllowed(document(), url))
          return;

      // Find out if we support fallback content.
      m_hasFallbackContent = false;
      for (Node *child = o->firstChild(); child && !m_hasFallbackContent; child = child->nextSibling()) {
          if ((!child->isTextNode() && !child->hasTagName(embedTag) && !child->hasTagName(paramTag)) || // Discount <embed> and <param>
              (child->isTextNode() && !static_cast<Text*>(child)->containsOnlyWhitespace()))
              m_hasFallbackContent = true;
      }
      
      if (onlyCreateNonNetscapePlugins) {
          KURL completedURL;
          if (!url.isEmpty())
              completedURL = frame->loader()->completeURL(url);
        
          if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)
              return;
      }
      
      bool success = frame->loader()->requestObject(this, url, AtomicString(o->name()), serviceType, paramNames, paramValues);
      if (!success && m_hasFallbackContent)
          o->renderFallbackContent();
  } else if (element()->hasTagName(embedTag)) {
      HTMLEmbedElement *o = static_cast<HTMLEmbedElement*>(element());
      o->setNeedWidgetUpdate(false);
      url = o->url();
      serviceType = o->serviceType();

      if (url.isEmpty() && serviceType.isEmpty())
          return;
      if (!isURLAllowed(document(), url))
          return;
      
      // add all attributes set on the embed object
      NamedAttrMap* a = o->attributes();
      if (a) {
          for (unsigned i = 0; i < a->length(); ++i) {
              Attribute* it = a->attributeItem(i);
              paramNames.append(it->name().localName().string());
              paramValues.append(it->value().string());
          }
      }
      
      if (onlyCreateNonNetscapePlugins) {
          KURL completedURL;
          if (!url.isEmpty())
              completedURL = frame->loader()->completeURL(url);
          
          if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)
              return;
          
      }
      
      frame->loader()->requestObject(this, url, o->getAttribute(nameAttr), serviceType, paramNames, paramValues);
  }
}
Example #3
0
void RenderEmbeddedObject::updateWidget(bool onlyCreateNonNetscapePlugins)
{
    if (!m_replacementText.isNull() || !node()) // Check the node in case destroy() has been called.
        return;

    String url;
    String serviceType;
    Vector<String> paramNames;
    Vector<String> paramValues;
    Frame* frame = frameView()->frame();

    // The calls to SubframeLoader::requestObject within this function can result in a plug-in being initialized.
    // This can run cause arbitrary JavaScript to run and may result in this RenderObject being detached from
    // the render tree and destroyed, causing a crash like <rdar://problem/6954546>.  By extending our lifetime
    // artifically to ensure that we remain alive for the duration of plug-in initialization.
    RenderWidgetProtector protector(this);

    if (node()->hasTagName(objectTag)) {
        HTMLObjectElement* objectElement = static_cast<HTMLObjectElement*>(node());

        objectElement->setNeedWidgetUpdate(false);
        if (!objectElement->isFinishedParsingChildren())
          return;

        // Check for a child EMBED tag.
        HTMLEmbedElement* embed = 0;
        for (Node* child = objectElement->firstChild(); child; ) {
            if (child->hasTagName(embedTag)) {
                embed = static_cast<HTMLEmbedElement*>(child);
                break;
            }
            
            if (child->hasTagName(objectTag))
                child = child->nextSibling(); // Don't descend into nested OBJECT tags
            else
                child = child->traverseNextNode(objectElement); // Otherwise descend (EMBEDs may be inside COMMENT tags)
        }

        // Use the attributes from the EMBED tag instead of the OBJECT tag including WIDTH and HEIGHT.
        HTMLElement* embedOrObject;
        if (embed) {
            embedOrObject = embed;
            url = embed->url();
            serviceType = embed->serviceType();
        } else
            embedOrObject = objectElement;

        // If there was no URL or type defined in EMBED, try the OBJECT tag.
        if (url.isEmpty())
            url = objectElement->url();
        if (serviceType.isEmpty())
            serviceType = objectElement->serviceType();

        HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;

        // Scan the PARAM children.
        // Get the URL and type from the params if we don't already have them.
        // Get the attributes from the params if there is no EMBED tag.
        Node* child = objectElement->firstChild();
        while (child && (url.isEmpty() || serviceType.isEmpty() || !embed)) {
            if (child->hasTagName(paramTag)) {
                HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
                String name = p->name();
                if (url.isEmpty() && (equalIgnoringCase(name, "src") || equalIgnoringCase(name, "movie") || equalIgnoringCase(name, "code") || equalIgnoringCase(name, "url")))
                    url = p->value();
                if (serviceType.isEmpty() && equalIgnoringCase(name, "type")) {
                    serviceType = p->value();
                    int pos = serviceType.find(";");
                    if (pos != -1)
                        serviceType = serviceType.left(pos);
                }
                if (!embed && !name.isEmpty()) {
                    uniqueParamNames.add(name.impl());
                    paramNames.append(p->name());
                    paramValues.append(p->value());
                }
            }
            child = child->nextSibling();
        }

        // When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag
        // points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is
        // in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means
        // we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,
        // else our Java plugin will misinterpret it. [4004531]
        String codebase;
        if (!embed && MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
            codebase = "codebase";
            uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
        }
        
        // Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values.
        NamedNodeMap* attributes = embedOrObject->attributes();
        if (attributes) {
            for (unsigned i = 0; i < attributes->length(); ++i) {
                Attribute* it = attributes->attributeItem(i);
                const AtomicString& name = it->name().localName();
                if (embed || !uniqueParamNames.contains(name.impl())) {
                    paramNames.append(name.string());
                    paramValues.append(it->value().string());
                }
            }
        }

        mapDataParamToSrc(&paramNames, &paramValues);

        // If we still don't have a type, try to map from a specific CLASSID to a type.
        if (serviceType.isEmpty())
            serviceType = serviceTypeForClassId(objectElement->classId());

        if (!isURLAllowed(document(), url))
            return;

        // Find out if we support fallback content.
        m_hasFallbackContent = false;
        for (Node* child = objectElement->firstChild(); child && !m_hasFallbackContent; child = child->nextSibling()) {
            if ((!child->isTextNode() && !child->hasTagName(embedTag) && !child->hasTagName(paramTag))  // Discount <embed> and <param>
                || (child->isTextNode() && !static_cast<Text*>(child)->containsOnlyWhitespace()))
                m_hasFallbackContent = true;
        }

        if (onlyCreateNonNetscapePlugins) {
            KURL completedURL;
            if (!url.isEmpty())
                completedURL = frame->loader()->completeURL(url);

            if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)
                return;
        }

        bool beforeLoadAllowedLoad = objectElement->dispatchBeforeLoadEvent(url);
        
        // beforeload events can modify the DOM, potentially causing
        // RenderWidget::destroy() to be called.  Ensure we haven't been
        // destroyed before continuing.
        if (!node())
            return;
        
        bool success = beforeLoadAllowedLoad && frame->loader()->subframeLoader()->requestObject(this, url, objectElement->getAttribute(nameAttr), serviceType, paramNames, paramValues);
    
        if (!success && m_hasFallbackContent)
            objectElement->renderFallbackContent();

    } else if (node()->hasTagName(embedTag)) {
        HTMLEmbedElement* embedElement = static_cast<HTMLEmbedElement*>(node());
        embedElement->setNeedWidgetUpdate(false);
        url = embedElement->url();
        serviceType = embedElement->serviceType();

        if (url.isEmpty() && serviceType.isEmpty())
            return;
        if (!isURLAllowed(document(), url))
            return;

        // add all attributes set on the embed object
        NamedNodeMap* attributes = embedElement->attributes();
        if (attributes) {
            for (unsigned i = 0; i < attributes->length(); ++i) {
                Attribute* it = attributes->attributeItem(i);
                paramNames.append(it->name().localName().string());
                paramValues.append(it->value().string());
            }
        }

        if (onlyCreateNonNetscapePlugins) {
            KURL completedURL;
            if (!url.isEmpty())
                completedURL = frame->loader()->completeURL(url);

            if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)
                return;
        }

        if (embedElement->dispatchBeforeLoadEvent(url))
            frame->loader()->subframeLoader()->requestObject(this, url, embedElement->getAttribute(nameAttr), serviceType, paramNames, paramValues);
    }
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)        
    else if (node()->hasTagName(videoTag) || node()->hasTagName(audioTag)) {
        HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(node());
        KURL kurl;

        mediaElement->getPluginProxyParams(kurl, paramNames, paramValues);
        mediaElement->setNeedWidgetUpdate(false);
        frame->loader()->subframeLoader()->loadMediaPlayerProxyPlugin(node(), kurl, paramNames, paramValues);
    }
#endif
}