1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * (C) 2000 Stefan Schimanski (1Stein@gmx.de) 5 * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2012 Apple Inc. All rights reserved. 6 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 */ 23 24#include "config.h" 25#include "core/html/HTMLAppletElement.h" 26 27#include "core/HTMLNames.h" 28#include "core/dom/ElementTraversal.h" 29#include "core/dom/shadow/ShadowRoot.h" 30#include "core/html/HTMLParamElement.h" 31#include "core/loader/FrameLoader.h" 32#include "core/loader/FrameLoaderClient.h" 33#include "core/frame/LocalFrame.h" 34#include "core/frame/Settings.h" 35#include "core/frame/csp/ContentSecurityPolicy.h" 36#include "core/rendering/RenderApplet.h" 37#include "core/rendering/RenderBlockFlow.h" 38#include "platform/Widget.h" 39#include "platform/weborigin/KURL.h" 40#include "platform/weborigin/SecurityOrigin.h" 41 42namespace blink { 43 44using namespace HTMLNames; 45 46HTMLAppletElement::HTMLAppletElement(Document& document, bool createdByParser) 47 : HTMLPlugInElement(appletTag, document, createdByParser, ShouldNotPreferPlugInsForImages) 48{ 49 m_serviceType = "application/x-java-applet"; 50} 51 52PassRefPtrWillBeRawPtr<HTMLAppletElement> HTMLAppletElement::create(Document& document, bool createdByParser) 53{ 54 RefPtrWillBeRawPtr<HTMLAppletElement> element = adoptRefWillBeNoop(new HTMLAppletElement(document, createdByParser)); 55 element->ensureUserAgentShadowRoot(); 56 return element.release(); 57} 58 59void HTMLAppletElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 60{ 61 if (name == altAttr 62 || name == archiveAttr 63 || name == codeAttr 64 || name == codebaseAttr 65 || name == mayscriptAttr 66 || name == objectAttr) { 67 // Do nothing. 68 return; 69 } 70 71 HTMLPlugInElement::parseAttribute(name, value); 72} 73 74bool HTMLAppletElement::isURLAttribute(const Attribute& attribute) const 75{ 76 return attribute.name() == codebaseAttr || attribute.name() == objectAttr 77 || HTMLPlugInElement::isURLAttribute(attribute); 78} 79 80bool HTMLAppletElement::hasLegalLinkAttribute(const QualifiedName& name) const 81{ 82 return name == codebaseAttr || HTMLPlugInElement::hasLegalLinkAttribute(name); 83} 84 85bool HTMLAppletElement::rendererIsNeeded(const RenderStyle& style) 86{ 87 if (!fastHasAttribute(codeAttr) && !hasAuthorShadowRoot()) 88 return false; 89 return HTMLPlugInElement::rendererIsNeeded(style); 90} 91 92RenderObject* HTMLAppletElement::createRenderer(RenderStyle* style) 93{ 94 if (!canEmbedJava() || hasAuthorShadowRoot()) 95 return RenderObject::createObject(this, style); 96 97 if (usePlaceholderContent()) 98 return new RenderBlockFlow(this); 99 100 return new RenderApplet(this); 101} 102 103RenderWidget* HTMLAppletElement::renderWidgetForJSBindings() const 104{ 105 if (!canEmbedJava()) 106 return 0; 107 return HTMLPlugInElement::renderWidgetForJSBindings(); 108} 109 110RenderWidget* HTMLAppletElement::existingRenderWidget() const 111{ 112 return renderPart(); 113} 114 115void HTMLAppletElement::updateWidgetInternal() 116{ 117 setNeedsWidgetUpdate(false); 118 // FIXME: This should ASSERT isFinishedParsingChildren() instead. 119 if (!isFinishedParsingChildren()) 120 return; 121 122 RenderEmbeddedObject* renderer = renderEmbeddedObject(); 123 124 LocalFrame* frame = document().frame(); 125 ASSERT(frame); 126 127 Vector<String> paramNames; 128 Vector<String> paramValues; 129 130 const AtomicString& codeBase = getAttribute(codebaseAttr); 131 if (!codeBase.isNull()) { 132 KURL codeBaseURL = document().completeURL(codeBase); 133 paramNames.append("codeBase"); 134 paramValues.append(codeBase.string()); 135 } 136 137 const AtomicString& archive = getAttribute(archiveAttr); 138 if (!archive.isNull()) { 139 paramNames.append("archive"); 140 paramValues.append(archive.string()); 141 } 142 143 const AtomicString& code = getAttribute(codeAttr); 144 paramNames.append("code"); 145 paramValues.append(code.string()); 146 147 // If the 'codebase' attribute is set, it serves as a relative root for the file that the Java 148 // plugin will load. If the 'code' attribute is set, and the 'archive' is not set, then we need 149 // to check the url generated by resolving 'code' against 'codebase'. If the 'archive' 150 // attribute is set, then 'code' points to a class inside the archive, so we need to check the 151 // url generated by resolving 'archive' against 'codebase'. 152 KURL urlToCheck; 153 KURL rootURL = codeBase.isNull() ? document().url() : document().completeURL(codeBase); 154 if (!archive.isNull()) 155 urlToCheck = KURL(rootURL, archive); 156 else if (!code.isNull()) 157 urlToCheck = KURL(rootURL, code); 158 if (!canEmbedURL(urlToCheck)) 159 return; 160 161 const AtomicString& name = document().isHTMLDocument() ? getNameAttribute() : getIdAttribute(); 162 if (!name.isNull()) { 163 paramNames.append("name"); 164 paramValues.append(name.string()); 165 } 166 167 paramNames.append("baseURL"); 168 KURL baseURL = document().baseURL(); 169 paramValues.append(baseURL.string()); 170 171 const AtomicString& mayScript = getAttribute(mayscriptAttr); 172 if (!mayScript.isNull()) { 173 paramNames.append("mayScript"); 174 paramValues.append(mayScript.string()); 175 } 176 177 for (HTMLParamElement* param = Traversal<HTMLParamElement>::firstChild(*this); param; param = Traversal<HTMLParamElement>::nextSibling(*param)) { 178 if (param->name().isEmpty()) 179 continue; 180 181 paramNames.append(param->name()); 182 paramValues.append(param->value()); 183 } 184 185 RefPtr<Widget> widget; 186 if (frame->loader().allowPlugins(AboutToInstantiatePlugin)) 187 widget = frame->loader().client()->createJavaAppletWidget(this, baseURL, paramNames, paramValues); 188 189 if (!widget) { 190 if (!renderer->showsUnavailablePluginIndicator()) 191 renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing); 192 return; 193 } 194 document().setContainsPlugins(); 195 setWidget(widget); 196} 197 198bool HTMLAppletElement::canEmbedJava() const 199{ 200 if (document().isSandboxed(SandboxPlugins)) 201 return false; 202 203 Settings* settings = document().settings(); 204 if (!settings) 205 return false; 206 207 if (!settings->javaEnabled()) 208 return false; 209 210 return true; 211} 212 213bool HTMLAppletElement::canEmbedURL(const KURL& url) const 214{ 215 DEFINE_STATIC_LOCAL(String, appletMimeType, ("application/x-java-applet")); 216 217 if (!document().securityOrigin()->canDisplay(url)) { 218 FrameLoader::reportLocalLoadFailed(document().frame(), url.string()); 219 return false; 220 } 221 222 if (!document().contentSecurityPolicy()->allowObjectFromSource(url) 223 || !document().contentSecurityPolicy()->allowPluginType(appletMimeType, appletMimeType, url)) { 224 renderEmbeddedObject()->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginBlockedByContentSecurityPolicy); 225 return false; 226 } 227 return true; 228} 229 230} 231