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      1 // Copyright (c) 2012 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/browser/ui/webui/flash_ui.h"
      6 
      7 #include <map>
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/bind.h"
     12 #include "base/bind_helpers.h"
     13 #include "base/i18n/time_formatting.h"
     14 #include "base/memory/weak_ptr.h"
     15 #include "base/strings/string16.h"
     16 #include "base/strings/string_number_conversions.h"
     17 #include "base/strings/stringprintf.h"
     18 #include "base/strings/utf_string_conversions.h"
     19 #include "base/threading/thread_restrictions.h"
     20 #include "base/timer/timer.h"
     21 #include "base/values.h"
     22 #include "chrome/browser/crash_upload_list.h"
     23 #include "chrome/browser/plugins/plugin_prefs.h"
     24 #include "chrome/browser/profiles/profile.h"
     25 #include "chrome/browser/ui/webui/crashes_ui.h"
     26 #include "chrome/common/chrome_version_info.h"
     27 #include "chrome/common/url_constants.h"
     28 #include "content/public/browser/gpu_data_manager.h"
     29 #include "content/public/browser/gpu_data_manager_observer.h"
     30 #include "content/public/browser/plugin_service.h"
     31 #include "content/public/browser/user_metrics.h"
     32 #include "content/public/browser/web_contents.h"
     33 #include "content/public/browser/web_ui.h"
     34 #include "content/public/browser/web_ui_data_source.h"
     35 #include "content/public/browser/web_ui_message_handler.h"
     36 #include "content/public/common/content_constants.h"
     37 #include "content/public/common/webplugininfo.h"
     38 #include "gpu/config/gpu_info.h"
     39 #include "grit/browser_resources.h"
     40 #include "grit/chromium_strings.h"
     41 #include "grit/generated_resources.h"
     42 #include "grit/theme_resources.h"
     43 #include "ui/base/l10n/l10n_util.h"
     44 #include "ui/base/resource/resource_bundle.h"
     45 
     46 #if defined(OS_WIN)
     47 #include "base/win/windows_version.h"
     48 #endif
     49 
     50 using content::GpuDataManager;
     51 using content::PluginService;
     52 using content::UserMetricsAction;
     53 using content::WebContents;
     54 using content::WebUIMessageHandler;
     55 
     56 namespace {
     57 
     58 const char kFlashPlugin[] = "Flash plugin";
     59 
     60 content::WebUIDataSource* CreateFlashUIHTMLSource() {
     61   content::WebUIDataSource* source =
     62       content::WebUIDataSource::Create(chrome::kChromeUIFlashHost);
     63 
     64   source->SetUseJsonJSFormatV2();
     65   source->AddLocalizedString("loadingMessage", IDS_FLASH_LOADING_MESSAGE);
     66   source->AddLocalizedString("flashLongTitle", IDS_FLASH_TITLE_MESSAGE);
     67   source->SetJsonPath("strings.js");
     68   source->AddResourcePath("about_flash.js", IDR_ABOUT_FLASH_JS);
     69   source->SetDefaultResource(IDR_ABOUT_FLASH_HTML);
     70   return source;
     71 }
     72 
     73 const int kTimeout = 8 * 1000;  // 8 seconds.
     74 
     75 ////////////////////////////////////////////////////////////////////////////////
     76 //
     77 // FlashDOMHandler
     78 //
     79 ////////////////////////////////////////////////////////////////////////////////
     80 
     81 // The handler for JavaScript messages for the about:flags page.
     82 class FlashDOMHandler : public WebUIMessageHandler,
     83                         public CrashUploadList::Delegate,
     84                         public content::GpuDataManagerObserver {
     85  public:
     86   FlashDOMHandler();
     87   virtual ~FlashDOMHandler();
     88 
     89   // WebUIMessageHandler implementation.
     90   virtual void RegisterMessages() OVERRIDE;
     91 
     92   // CrashUploadList::Delegate implementation.
     93   virtual void OnUploadListAvailable() OVERRIDE;
     94 
     95   // GpuDataManager::Observer implementation.
     96   virtual void OnGpuInfoUpdate() OVERRIDE;
     97 
     98   // Callback for the "requestFlashInfo" message.
     99   void HandleRequestFlashInfo(const ListValue* args);
    100 
    101   // Callback for the Flash plugin information.
    102   void OnGotPlugins(const std::vector<content::WebPluginInfo>& plugins);
    103 
    104  private:
    105   // Called when we think we might have enough information to return data back
    106   // to the page.
    107   void MaybeRespondToPage();
    108 
    109   // In certain cases we might not get called back from the GPU process so we
    110   // set an upper limit on the time we wait. This function gets called when the
    111   // time has passed. This actually doesn't prevent the rest of the information
    112   // to appear later, the page will just reflow when more information becomes
    113   // available.
    114   void OnTimeout();
    115 
    116   // A timer to keep track of when the data fetching times out.
    117   base::OneShotTimer<FlashDOMHandler> timeout_;
    118 
    119   // Crash list.
    120   scoped_refptr<CrashUploadList> upload_list_;
    121 
    122   // Whether the list of all crashes is available.
    123   bool crash_list_available_;
    124   // Whether the page has requested data.
    125   bool page_has_requested_data_;
    126   // Whether the GPU data has been collected.
    127   bool has_gpu_info_;
    128   // Whether the plugin information is ready.
    129   bool has_plugin_info_;
    130 
    131   base::WeakPtrFactory<FlashDOMHandler> weak_ptr_factory_;
    132 
    133   DISALLOW_COPY_AND_ASSIGN(FlashDOMHandler);
    134 };
    135 
    136 FlashDOMHandler::FlashDOMHandler()
    137     : crash_list_available_(false),
    138       page_has_requested_data_(false),
    139       has_gpu_info_(false),
    140       has_plugin_info_(false),
    141       weak_ptr_factory_(this) {
    142         // Request Crash data asynchronously.
    143   upload_list_ = CrashUploadList::Create(this);
    144   upload_list_->LoadUploadListAsynchronously();
    145 
    146   // Watch for changes in GPUInfo.
    147   GpuDataManager::GetInstance()->AddObserver(this);
    148 
    149   // Tell GpuDataManager it should have full GpuInfo. If the
    150   // GPU process has not run yet, this will trigger its launch.
    151   GpuDataManager::GetInstance()->RequestCompleteGpuInfoIfNeeded();
    152 
    153   // GPU access might not be allowed at all, which will cause us not to get a
    154   // call back.
    155   if (!GpuDataManager::GetInstance()->GpuAccessAllowed(NULL))
    156     OnGpuInfoUpdate();
    157 
    158   PluginService::GetInstance()->GetPlugins(base::Bind(
    159       &FlashDOMHandler::OnGotPlugins, weak_ptr_factory_.GetWeakPtr()));
    160 
    161   // And lastly, we fire off a timer to make sure we never get stuck at the
    162   // "Loading..." message.
    163   timeout_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(kTimeout),
    164                  this, &FlashDOMHandler::OnTimeout);
    165 }
    166 
    167 FlashDOMHandler::~FlashDOMHandler() {
    168   GpuDataManager::GetInstance()->RemoveObserver(this);
    169   upload_list_->ClearDelegate();
    170 }
    171 
    172 void FlashDOMHandler::RegisterMessages() {
    173   web_ui()->RegisterMessageCallback("requestFlashInfo",
    174       base::Bind(&FlashDOMHandler::HandleRequestFlashInfo,
    175                  base::Unretained(this)));
    176 }
    177 
    178 void FlashDOMHandler::OnUploadListAvailable() {
    179   crash_list_available_ = true;
    180   MaybeRespondToPage();
    181 }
    182 
    183 void AddPair(ListValue* list,
    184              const base::string16& key,
    185              const base::string16& value) {
    186   DictionaryValue* results = new DictionaryValue();
    187   results->SetString("key", key);
    188   results->SetString("value", value);
    189   list->Append(results);
    190 }
    191 
    192 void AddPair(ListValue* list,
    193              const base::string16& key,
    194              const std::string& value) {
    195   AddPair(list, key, ASCIIToUTF16(value));
    196 }
    197 
    198 void FlashDOMHandler::HandleRequestFlashInfo(const ListValue* args) {
    199   page_has_requested_data_ = true;
    200   MaybeRespondToPage();
    201 }
    202 
    203 void FlashDOMHandler::OnGpuInfoUpdate() {
    204   has_gpu_info_ = true;
    205   MaybeRespondToPage();
    206 }
    207 
    208 void FlashDOMHandler::OnGotPlugins(
    209     const std::vector<content::WebPluginInfo>& plugins) {
    210   has_plugin_info_ = true;
    211   MaybeRespondToPage();
    212 }
    213 
    214 void FlashDOMHandler::OnTimeout() {
    215   // We don't set page_has_requested_data_ because that is guaranteed to appear
    216   // and we shouldn't be responding to the page before then.
    217   has_gpu_info_ = true;
    218   crash_list_available_ = true;
    219   has_plugin_info_ = true;
    220   MaybeRespondToPage();
    221 }
    222 
    223 void FlashDOMHandler::MaybeRespondToPage() {
    224   // We don't reply until everything is ready. The page is showing a 'loading'
    225   // message until then. If you add criteria to this list, please update the
    226   // function OnTimeout() as well.
    227   if (!page_has_requested_data_ || !crash_list_available_ || !has_gpu_info_ ||
    228       !has_plugin_info_) {
    229     return;
    230   }
    231 
    232   timeout_.Stop();
    233 
    234   // This is code that runs only when the user types in about:flash. We don't
    235   // need to jump through hoops to offload this to the IO thread.
    236   base::ThreadRestrictions::ScopedAllowIO allow_io;
    237 
    238   // Obtain the Chrome version info.
    239   chrome::VersionInfo version_info;
    240 
    241   ListValue* list = new ListValue();
    242 
    243   // Chrome version information.
    244   AddPair(list,
    245           l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
    246           version_info.Version() + " (" +
    247           chrome::VersionInfo::GetVersionStringModifier() + ")");
    248 
    249   // OS version information.
    250   std::string os_label = version_info.OSType();
    251 #if defined(OS_WIN)
    252   base::win::OSInfo* os = base::win::OSInfo::GetInstance();
    253   switch (os->version()) {
    254     case base::win::VERSION_XP: os_label += " XP"; break;
    255     case base::win::VERSION_SERVER_2003:
    256       os_label += " Server 2003 or XP Pro 64 bit";
    257       break;
    258     case base::win::VERSION_VISTA: os_label += " Vista or Server 2008"; break;
    259     case base::win::VERSION_WIN7: os_label += " 7 or Server 2008 R2"; break;
    260     case base::win::VERSION_WIN8: os_label += " 8 or Server 2012"; break;
    261     default:  os_label += " UNKNOWN"; break;
    262   }
    263   os_label += " SP" + base::IntToString(os->service_pack().major);
    264   if (os->service_pack().minor > 0)
    265     os_label += "." + base::IntToString(os->service_pack().minor);
    266   if (os->architecture() == base::win::OSInfo::X64_ARCHITECTURE)
    267     os_label += " 64 bit";
    268 #endif
    269   AddPair(list, l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_OS), os_label);
    270 
    271   // Obtain the version of the Flash plugins.
    272   std::vector<content::WebPluginInfo> info_array;
    273   PluginService::GetInstance()->GetPluginInfoArray(
    274       GURL(), content::kFlashPluginSwfMimeType, false, &info_array, NULL);
    275   if (info_array.empty()) {
    276     AddPair(list, ASCIIToUTF16(kFlashPlugin), "Not installed");
    277   } else {
    278     PluginPrefs* plugin_prefs =
    279         PluginPrefs::GetForProfile(Profile::FromWebUI(web_ui())).get();
    280     bool found_enabled = false;
    281     for (size_t i = 0; i < info_array.size(); ++i) {
    282       base::string16 flash_version = info_array[i].version + ASCIIToUTF16(" ") +
    283                                info_array[i].path.LossyDisplayName();
    284       if (plugin_prefs->IsPluginEnabled(info_array[i])) {
    285         // If we have already found an enabled Flash version, this one
    286         // is not used.
    287         if (found_enabled)
    288           flash_version += ASCIIToUTF16(" (not used)");
    289 
    290         found_enabled = true;
    291       } else {
    292         flash_version += ASCIIToUTF16(" (disabled)");
    293       }
    294       AddPair(list, ASCIIToUTF16(kFlashPlugin), flash_version);
    295     }
    296   }
    297 
    298   // Crash information.
    299   AddPair(list, base::string16(), "--- Crash data ---");
    300   bool crash_reporting_enabled = CrashesUI::CrashReportingUIEnabled();
    301   if (crash_reporting_enabled) {
    302     std::vector<CrashUploadList::UploadInfo> crashes;
    303     upload_list_->GetUploads(10, &crashes);
    304 
    305     for (std::vector<CrashUploadList::UploadInfo>::iterator i = crashes.begin();
    306          i != crashes.end(); ++i) {
    307       base::string16 crash_string(ASCIIToUTF16(i->id));
    308       crash_string += ASCIIToUTF16(" ");
    309       crash_string += base::TimeFormatFriendlyDateAndTime(i->time);
    310       AddPair(list, ASCIIToUTF16("crash id"), crash_string);
    311     }
    312   } else {
    313     AddPair(list, ASCIIToUTF16("Crash Reporting"),
    314                   "Enable crash reporting to see crash IDs");
    315     AddPair(list, ASCIIToUTF16("For more details"),
    316                   chrome::kLearnMoreReportingURL);
    317   }
    318 
    319   // GPU information.
    320   AddPair(list, base::string16(), "--- GPU information ---");
    321   gpu::GPUInfo gpu_info = GpuDataManager::GetInstance()->GetGPUInfo();
    322 
    323   std::string reason;
    324   if (!GpuDataManager::GetInstance()->GpuAccessAllowed(&reason)) {
    325     AddPair(list, ASCIIToUTF16("WARNING:"),
    326             "GPU access is not allowed: " + reason);
    327   }
    328 #if defined(OS_WIN)
    329   const gpu::DxDiagNode& node = gpu_info.dx_diagnostics;
    330   for (std::map<std::string, gpu::DxDiagNode>::const_iterator it =
    331            node.children.begin();
    332        it != node.children.end();
    333        ++it) {
    334     for (std::map<std::string, std::string>::const_iterator it2 =
    335              it->second.values.begin();
    336          it2 != it->second.values.end();
    337          ++it2) {
    338       if (!it2->second.empty()) {
    339         if (it2->first == "szDescription") {
    340           AddPair(list, ASCIIToUTF16("Graphics card"), it2->second);
    341         } else if (it2->first == "szDriverNodeStrongName") {
    342           AddPair(list, ASCIIToUTF16("Driver name (strong)"), it2->second);
    343         } else if (it2->first == "szDriverName") {
    344           AddPair(list, ASCIIToUTF16("Driver display name"), it2->second);
    345         }
    346       }
    347     }
    348   }
    349 #endif
    350 
    351   AddPair(list, base::string16(), "--- GPU driver, more information ---");
    352   AddPair(list,
    353           ASCIIToUTF16("Vendor Id"),
    354           base::StringPrintf("0x%04x", gpu_info.gpu.vendor_id));
    355   AddPair(list,
    356           ASCIIToUTF16("Device Id"),
    357           base::StringPrintf("0x%04x", gpu_info.gpu.device_id));
    358   AddPair(list, ASCIIToUTF16("Driver vendor"), gpu_info.driver_vendor);
    359   AddPair(list, ASCIIToUTF16("Driver version"), gpu_info.driver_version);
    360   AddPair(list, ASCIIToUTF16("Driver date"), gpu_info.driver_date);
    361   AddPair(list,
    362           ASCIIToUTF16("Pixel shader version"),
    363           gpu_info.pixel_shader_version);
    364   AddPair(list,
    365           ASCIIToUTF16("Vertex shader version"),
    366           gpu_info.vertex_shader_version);
    367   AddPair(list, ASCIIToUTF16("GL version"), gpu_info.gl_version);
    368   AddPair(list, ASCIIToUTF16("GL_VENDOR"), gpu_info.gl_vendor);
    369   AddPair(list, ASCIIToUTF16("GL_RENDERER"), gpu_info.gl_renderer);
    370   AddPair(list, ASCIIToUTF16("GL_VERSION"), gpu_info.gl_version_string);
    371   AddPair(list, ASCIIToUTF16("GL_EXTENSIONS"), gpu_info.gl_extensions);
    372 
    373   DictionaryValue flashInfo;
    374   flashInfo.Set("flashInfo", list);
    375   web_ui()->CallJavascriptFunction("returnFlashInfo", flashInfo);
    376 }
    377 
    378 }  // namespace
    379 
    380 ///////////////////////////////////////////////////////////////////////////////
    381 //
    382 // FlashUI
    383 //
    384 ///////////////////////////////////////////////////////////////////////////////
    385 
    386 FlashUI::FlashUI(content::WebUI* web_ui) : WebUIController(web_ui) {
    387   content::RecordAction(
    388       UserMetricsAction("ViewAboutFlash"));
    389 
    390   web_ui->AddMessageHandler(new FlashDOMHandler());
    391 
    392   // Set up the about:flash source.
    393   Profile* profile = Profile::FromWebUI(web_ui);
    394   content::WebUIDataSource::Add(profile, CreateFlashUIHTMLSource());
    395 }
    396 
    397 // static
    398 base::RefCountedMemory* FlashUI::GetFaviconResourceBytes(
    399       ui::ScaleFactor scale_factor) {
    400   // Use the default icon for now.
    401   return NULL;
    402 }
    403