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