src/chrome/renderer/plugins/chrome_plugin_placeholder.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/renderer/plugins/chrome_plugin_placeholder.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "base/values.h"
   9 #include "chrome/common/prerender_messages.h"
  10 #include "chrome/common/render_messages.h"
  11 #include "chrome/grit/generated_resources.h"
  12 #include "chrome/grit/renderer_resources.h"
  13 #include "chrome/renderer/chrome_content_renderer_client.h"
  14 #include "chrome/renderer/custom_menu_commands.h"
  15 #include "chrome/renderer/plugins/plugin_uma.h"
  16 #include "content/app/strings/grit/content_strings.h"
  17 #include "content/public/common/context_menu_params.h"
  18 #include "content/public/renderer/render_frame.h"
  19 #include "content/public/renderer/render_thread.h"
  20 #include "gin/handle.h"
  21 #include "gin/object_template_builder.h"
  22 #include "third_party/WebKit/public/web/WebDocument.h"
  23 #include "third_party/WebKit/public/web/WebInputEvent.h"
  24 #include "third_party/WebKit/public/web/WebKit.h"
  25 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  26 #include "third_party/WebKit/public/web/WebScriptSource.h"
  27 #include "ui/base/l10n/l10n_util.h"
  28 #include "ui/base/resource/resource_bundle.h"
  29 #include "ui/base/webui/jstemplate_builder.h"
  30
  31 using base::UserMetricsAction;
  32 using blink::WebDocument;
  33 using blink::WebElement;
  34 using blink::WebFrame;
  35 using blink::WebLocalFrame;
  36 using blink::WebMouseEvent;
  37 using blink::WebNode;
  38 using blink::WebPlugin;
  39 using blink::WebPluginContainer;
  40 using blink::WebPluginParams;
  41 using content::RenderThread;
  42 using content::RenderView;
  43
  44 namespace {
  45 const plugins::PluginPlaceholder* g_last_active_menu = NULL;
  46 }  // namespace
  47
  48 const char ChromePluginPlaceholder::kPluginPlaceholderDataURL[] =
  49     "chrome://pluginplaceholderdata/";
  50
  51 ChromePluginPlaceholder::ChromePluginPlaceholder(
  52     content::RenderFrame* render_frame,
  53     blink::WebLocalFrame* frame,
  54     const blink::WebPluginParams& params,
  55     const std::string& html_data,
  56     const base::string16& title)
  57     : plugins::PluginPlaceholder(render_frame,
  58                                  frame,
  59                                  params,
  60                                  html_data,
  61                                  GURL(kPluginPlaceholderDataURL)),
  62       status_(new ChromeViewHostMsg_GetPluginInfo_Status),
  63       title_(title),
  64 #if defined(ENABLE_PLUGIN_INSTALLATION)
  65       placeholder_routing_id_(MSG_ROUTING_NONE),
  66 #endif
  67       has_host_(false),
  68       context_menu_request_id_(0) {
  69   RenderThread::Get()->AddObserver(this);
  70 }
  71
  72 ChromePluginPlaceholder::~ChromePluginPlaceholder() {
  73   RenderThread::Get()->RemoveObserver(this);
  74   if (context_menu_request_id_ && render_frame())
  75     render_frame()->CancelContextMenu(context_menu_request_id_);
  76
  77 #if defined(ENABLE_PLUGIN_INSTALLATION)
  78   if (placeholder_routing_id_ == MSG_ROUTING_NONE)
  79     return;
  80   RenderThread::Get()->RemoveRoute(placeholder_routing_id_);
  81   if (has_host_) {
  82     RenderThread::Get()->Send(new ChromeViewHostMsg_RemovePluginPlaceholderHost(
  83         routing_id(), placeholder_routing_id_));
  84   }
  85 #endif
  86 }
  87
  88 // static
  89 ChromePluginPlaceholder* ChromePluginPlaceholder::CreateMissingPlugin(
  90     content::RenderFrame* render_frame,
  91     WebLocalFrame* frame,
  92     const WebPluginParams& params) {
  93   const base::StringPiece template_html(
  94       ResourceBundle::GetSharedInstance().GetRawDataResource(
  95           IDR_BLOCKED_PLUGIN_HTML));
  96
  97   base::DictionaryValue values;
  98 #if defined(ENABLE_PLUGIN_INSTALLATION)
  99   values.SetString("message", l10n_util::GetStringUTF8(IDS_PLUGIN_SEARCHING));
 100 #else
 101   values.SetString("message",
 102                    l10n_util::GetStringUTF8(IDS_PLUGIN_NOT_SUPPORTED));
 103 #endif
 104
 105   std::string html_data = webui::GetI18nTemplateHtml(template_html, &values);
 106
 107   // |missing_plugin| will destroy itself when its WebViewPlugin is going away.
 108   ChromePluginPlaceholder* missing_plugin = new ChromePluginPlaceholder(
 109       render_frame, frame, params, html_data, params.mimeType);
 110   missing_plugin->set_allow_loading(true);
 111 #if defined(ENABLE_PLUGIN_INSTALLATION)
 112   RenderThread::Get()->Send(
 113       new ChromeViewHostMsg_FindMissingPlugin(missing_plugin->routing_id(),
 114                                               missing_plugin->CreateRoutingId(),
 115                                               params.mimeType.utf8()));
 116 #endif
 117   return missing_plugin;
 118 }
 119
 120 // static
 121 ChromePluginPlaceholder* ChromePluginPlaceholder::CreateErrorPlugin(
 122     content::RenderFrame* render_frame,
 123     const base::FilePath& file_path) {
 124   base::DictionaryValue values;
 125   values.SetString("message",
 126                    l10n_util::GetStringUTF8(IDS_PLUGIN_INITIALIZATION_ERROR));
 127
 128   const base::StringPiece template_html(
 129       ResourceBundle::GetSharedInstance().GetRawDataResource(
 130           IDR_BLOCKED_PLUGIN_HTML));
 131   std::string html_data = webui::GetI18nTemplateHtml(template_html, &values);
 132
 133   WebPluginParams params;
 134   // |missing_plugin| will destroy itself when its WebViewPlugin is going away.
 135   ChromePluginPlaceholder* plugin = new ChromePluginPlaceholder(
 136       render_frame, NULL, params, html_data, params.mimeType);
 137
 138   RenderThread::Get()->Send(new ChromeViewHostMsg_CouldNotLoadPlugin(
 139       plugin->routing_id(), file_path));
 140   return plugin;
 141 }
 142
 143 // static
 144 ChromePluginPlaceholder* ChromePluginPlaceholder::CreateBlockedPlugin(
 145     content::RenderFrame* render_frame,
 146     WebLocalFrame* frame,
 147     const WebPluginParams& params,
 148     const content::WebPluginInfo& plugin,
 149     const std::string& identifier,
 150     const base::string16& name,
 151     int template_id,
 152     const base::string16& message) {
 153   base::DictionaryValue values;
 154   values.SetString("message", message);
 155   values.SetString("name", name);
 156   values.SetString("hide", l10n_util::GetStringUTF8(IDS_PLUGIN_HIDE));
 157
 158   const base::StringPiece template_html(
 159       ResourceBundle::GetSharedInstance().GetRawDataResource(template_id));
 160
 161   DCHECK(!template_html.empty()) << "unable to load template. ID: "
 162                                  << template_id;
 163   std::string html_data = webui::GetI18nTemplateHtml(template_html, &values);
 164
 165   // |blocked_plugin| will destroy itself when its WebViewPlugin is going away.
 166   ChromePluginPlaceholder* blocked_plugin = new ChromePluginPlaceholder(
 167       render_frame, frame, params, html_data, name);
 168   blocked_plugin->SetPluginInfo(plugin);
 169   blocked_plugin->SetIdentifier(identifier);
 170   return blocked_plugin;
 171 }
 172
 173 void ChromePluginPlaceholder::SetStatus(
 174     const ChromeViewHostMsg_GetPluginInfo_Status& status) {
 175   status_->value = status.value;
 176 }
 177
 178 #if defined(ENABLE_PLUGIN_INSTALLATION)
 179 int32 ChromePluginPlaceholder::CreateRoutingId() {
 180   placeholder_routing_id_ = RenderThread::Get()->GenerateRoutingID();
 181   RenderThread::Get()->AddRoute(placeholder_routing_id_, this);
 182   return placeholder_routing_id_;
 183 }
 184 #endif
 185
 186 bool ChromePluginPlaceholder::OnMessageReceived(const IPC::Message& message) {
 187 #if defined(ENABLE_PLUGIN_INSTALLATION)
 188   bool handled = true;
 189   IPC_BEGIN_MESSAGE_MAP(ChromePluginPlaceholder, message)
 190     IPC_MESSAGE_HANDLER(ChromeViewMsg_FoundMissingPlugin, OnFoundMissingPlugin)
 191     IPC_MESSAGE_HANDLER(ChromeViewMsg_DidNotFindMissingPlugin,
 192                         OnDidNotFindMissingPlugin)
 193     IPC_MESSAGE_HANDLER(ChromeViewMsg_StartedDownloadingPlugin,
 194                         OnStartedDownloadingPlugin)
 195     IPC_MESSAGE_HANDLER(ChromeViewMsg_FinishedDownloadingPlugin,
 196                         OnFinishedDownloadingPlugin)
 197     IPC_MESSAGE_HANDLER(ChromeViewMsg_ErrorDownloadingPlugin,
 198                         OnErrorDownloadingPlugin)
 199     IPC_MESSAGE_HANDLER(ChromeViewMsg_CancelledDownloadingPlugin,
 200                         OnCancelledDownloadingPlugin)
 201     IPC_MESSAGE_UNHANDLED(handled = false)
 202   IPC_END_MESSAGE_MAP()
 203
 204   if (handled)
 205     return true;
 206 #endif
 207
 208   // We don't swallow these messages because multiple blocked plugins and other
 209   // objects have an interest in them.
 210   IPC_BEGIN_MESSAGE_MAP(ChromePluginPlaceholder, message)
 211     IPC_MESSAGE_HANDLER(PrerenderMsg_SetIsPrerendering, OnSetIsPrerendering)
 212     IPC_MESSAGE_HANDLER(ChromeViewMsg_LoadBlockedPlugins, OnLoadBlockedPlugins)
 213   IPC_END_MESSAGE_MAP()
 214
 215   return false;
 216 }
 217
 218 void ChromePluginPlaceholder::OnLoadBlockedPlugins(
 219     const std::string& identifier) {
 220   plugins::PluginPlaceholder::OnLoadBlockedPlugins(identifier);
 221 }
 222
 223 void ChromePluginPlaceholder::OpenAboutPluginsCallback() {
 224   RenderThread::Get()->Send(
 225       new ChromeViewHostMsg_OpenAboutPlugins(routing_id()));
 226 }
 227
 228 void ChromePluginPlaceholder::OnSetIsPrerendering(bool is_prerendering) {
 229   plugins::PluginPlaceholder::OnSetIsPrerendering(is_prerendering);
 230 }
 231
 232 #if defined(ENABLE_PLUGIN_INSTALLATION)
 233 void ChromePluginPlaceholder::OnDidNotFindMissingPlugin() {
 234   SetMessage(l10n_util::GetStringUTF16(IDS_PLUGIN_NOT_FOUND));
 235 }
 236
 237 void ChromePluginPlaceholder::OnFoundMissingPlugin(
 238     const base::string16& plugin_name) {
 239   if (status_->value == ChromeViewHostMsg_GetPluginInfo_Status::kNotFound)
 240     SetMessage(l10n_util::GetStringFUTF16(IDS_PLUGIN_FOUND, plugin_name));
 241   has_host_ = true;
 242   plugin_name_ = plugin_name;
 243 }
 244
 245 void ChromePluginPlaceholder::OnStartedDownloadingPlugin() {
 246   SetMessage(l10n_util::GetStringFUTF16(IDS_PLUGIN_DOWNLOADING, plugin_name_));
 247 }
 248
 249 void ChromePluginPlaceholder::OnFinishedDownloadingPlugin() {
 250   bool is_installing =
 251       status_->value == ChromeViewHostMsg_GetPluginInfo_Status::kNotFound;
 252   SetMessage(l10n_util::GetStringFUTF16(
 253       is_installing ? IDS_PLUGIN_INSTALLING : IDS_PLUGIN_UPDATING,
 254       plugin_name_));
 255 }
 256
 257 void ChromePluginPlaceholder::OnErrorDownloadingPlugin(
 258     const std::string& error) {
 259   SetMessage(l10n_util::GetStringFUTF16(IDS_PLUGIN_DOWNLOAD_ERROR,
 260                                         base::UTF8ToUTF16(error)));
 261 }
 262
 263 void ChromePluginPlaceholder::OnCancelledDownloadingPlugin() {
 264   SetMessage(
 265       l10n_util::GetStringFUTF16(IDS_PLUGIN_DOWNLOAD_CANCELLED, plugin_name_));
 266 }
 267 #endif  // defined(ENABLE_PLUGIN_INSTALLATION)
 268
 269 void ChromePluginPlaceholder::PluginListChanged() {
 270   if (!GetFrame() || !plugin())
 271     return;
 272   WebDocument document = GetFrame()->top()->document();
 273   if (document.isNull())
 274     return;
 275
 276   ChromeViewHostMsg_GetPluginInfo_Output output;
 277   std::string mime_type(GetPluginParams().mimeType.utf8());
 278   render_frame()->Send(
 279       new ChromeViewHostMsg_GetPluginInfo(routing_id(),
 280                                           GURL(GetPluginParams().url),
 281                                           document.url(),
 282                                           mime_type,
 283                                           &output));
 284   if (output.status.value == status_->value)
 285     return;
 286   WebPlugin* new_plugin = ChromeContentRendererClient::CreatePlugin(
 287       render_frame(),  GetFrame(), GetPluginParams(), output);
 288   ReplacePlugin(new_plugin);
 289   if (!new_plugin) {
 290     PluginUMAReporter::GetInstance()->ReportPluginMissing(
 291         GetPluginParams().mimeType.utf8(), GURL(GetPluginParams().url));
 292   }
 293 }
 294
 295 void ChromePluginPlaceholder::OnMenuAction(int request_id, unsigned action) {
 296   DCHECK_EQ(context_menu_request_id_, request_id);
 297   if (g_last_active_menu != this)
 298     return;
 299   switch (action) {
 300     case chrome::MENU_COMMAND_PLUGIN_RUN: {
 301       RenderThread::Get()->RecordAction(UserMetricsAction("Plugin_Load_Menu"));
 302       LoadPlugin();
 303       break;
 304     }
 305     case chrome::MENU_COMMAND_PLUGIN_HIDE: {
 306       RenderThread::Get()->RecordAction(UserMetricsAction("Plugin_Hide_Menu"));
 307       HidePlugin();
 308       break;
 309     }
 310     default:
 311       NOTREACHED();
 312   }
 313 }
 314
 315 void ChromePluginPlaceholder::OnMenuClosed(int request_id) {
 316   DCHECK_EQ(context_menu_request_id_, request_id);
 317   context_menu_request_id_ = 0;
 318 }
 319
 320 void ChromePluginPlaceholder::ShowContextMenu(const WebMouseEvent& event) {
 321 #if !defined(OS_ANDROID)  // The context menu is not applicable on Android.
 322   if (context_menu_request_id_)
 323     return;  // Don't allow nested context menu requests.
 324
 325   content::ContextMenuParams params;
 326
 327   content::MenuItem name_item;
 328   name_item.label = title_;
 329   params.custom_items.push_back(name_item);
 330
 331   content::MenuItem separator_item;
 332   separator_item.type = content::MenuItem::SEPARATOR;
 333   params.custom_items.push_back(separator_item);
 334
 335   if (!GetPluginInfo().path.value().empty()) {
 336     content::MenuItem run_item;
 337     run_item.action = chrome::MENU_COMMAND_PLUGIN_RUN;
 338     // Disable this menu item if the plugin is blocked by policy.
 339     run_item.enabled = LoadingAllowed();
 340     run_item.label = l10n_util::GetStringUTF16(IDS_CONTENT_CONTEXT_PLUGIN_RUN);
 341     params.custom_items.push_back(run_item);
 342   }
 343
 344   content::MenuItem hide_item;
 345   hide_item.action = chrome::MENU_COMMAND_PLUGIN_HIDE;
 346   hide_item.enabled = true;
 347   hide_item.label = l10n_util::GetStringUTF16(IDS_CONTENT_CONTEXT_PLUGIN_HIDE);
 348   params.custom_items.push_back(hide_item);
 349
 350   params.x = event.windowX;
 351   params.y = event.windowY;
 352
 353   context_menu_request_id_ = render_frame()->ShowContextMenu(this, params);
 354   g_last_active_menu = this;
 355 #endif  // OS_ANDROID
 356 }
 357
 358 void ChromePluginPlaceholder::BindWebFrame(blink::WebFrame* frame) {
 359   v8::Isolate* isolate = blink::mainThreadIsolate();
 360   v8::HandleScope handle_scope(isolate);
 361   v8::Handle<v8::Context> context = frame->mainWorldScriptContext();
 362   DCHECK(!context.IsEmpty());
 363
 364   v8::Context::Scope context_scope(context);
 365   v8::Handle<v8::Object> global = context->Global();
 366   global->Set(gin::StringToV8(isolate, "plugin"),
 367               gin::CreateHandle(isolate, this).ToV8());
 368 }
 369
 370 gin::ObjectTemplateBuilder ChromePluginPlaceholder::GetObjectTemplateBuilder(
 371     v8::Isolate* isolate) {
 372   return PluginPlaceholder::GetObjectTemplateBuilder(isolate).SetMethod(
 373       "openAboutPlugins", &ChromePluginPlaceholder::OpenAboutPluginsCallback);
 374 }