crashes_ui.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019 
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/crashes_ui.h"
6
7#include <vector>
8
9#include "base/bind.h"
10#include "base/bind_helpers.h"
11#include "base/i18n/time_formatting.h"
12#include "base/memory/ref_counted_memory.h"
13#include "base/utf_string_conversions.h"
14#include "base/values.h"
15#include "chrome/browser/browser_process.h"
16#include "chrome/browser/crash_upload_list.h"
17#include "chrome/browser/prefs/pref_service.h"
18#include "chrome/browser/profiles/profile.h"
19#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
20#include "chrome/browser/ui/webui/chrome_web_ui_data_source.h"
21#include "chrome/common/chrome_version_info.h"
22#include "chrome/common/pref_names.h"
23#include "chrome/common/url_constants.h"
24#include "content/public/browser/web_contents.h"
25#include "content/public/browser/web_ui.h"
26#include "content/public/browser/web_ui_message_handler.h"
27#include "grit/browser_resources.h"
28#include "grit/chromium_strings.h"
29#include "grit/generated_resources.h"
30#include "grit/theme_resources.h"
31#include "ui/base/l10n/l10n_util.h"
32#include "ui/base/resource/resource_bundle.h"
33
34#if defined(OS_CHROMEOS)
35#include "chrome/browser/chromeos/settings/cros_settings.h"
36#endif
37
38using content::WebContents;
39using content::WebUIMessageHandler;
40
41namespace {
42
43ChromeWebUIDataSource* CreateCrashesUIHTMLSource() {
44  ChromeWebUIDataSource* source =
45      new ChromeWebUIDataSource(chrome::kChromeUICrashesHost);
46  source->set_use_json_js_format_v2();
47
48  source->AddLocalizedString("crashesTitle", IDS_CRASHES_TITLE);
49  source->AddLocalizedString("crashCountFormat",
50                             IDS_CRASHES_CRASH_COUNT_BANNER_FORMAT);
51  source->AddLocalizedString("crashHeaderFormat",
52                             IDS_CRASHES_CRASH_HEADER_FORMAT);
53  source->AddLocalizedString("crashTimeFormat", IDS_CRASHES_CRASH_TIME_FORMAT);
54  source->AddLocalizedString("bugLinkText", IDS_CRASHES_BUG_LINK_LABEL);
55  source->AddLocalizedString("noCrashesMessage",
56                             IDS_CRASHES_NO_CRASHES_MESSAGE);
57  source->AddLocalizedString("disabledHeader", IDS_CRASHES_DISABLED_HEADER);
58  source->AddLocalizedString("disabledMessage", IDS_CRASHES_DISABLED_MESSAGE);
59  source->set_json_path("strings.js");
60  source->add_resource_path("crashes.js", IDR_CRASHES_JS);
61  source->set_default_resource(IDR_CRASHES_HTML);
62  return source;
63}
64
65////////////////////////////////////////////////////////////////////////////////
66//
67// CrashesDOMHandler
68//
69////////////////////////////////////////////////////////////////////////////////
70
71// The handler for Javascript messages for the chrome://crashes/ page.
72class CrashesDOMHandler : public WebUIMessageHandler,
73                          public CrashUploadList::Delegate {
74 public:
75  explicit CrashesDOMHandler();
76  virtual ~CrashesDOMHandler();
77
78  // WebUIMessageHandler implementation.
79  virtual void RegisterMessages() OVERRIDE;
80
81  // CrashUploadList::Delegate implemenation.
82  virtual void OnCrashListAvailable() OVERRIDE;
83
84 private:
85  // Asynchronously fetches the list of crashes. Called from JS.
86  void HandleRequestCrashes(const ListValue* args);
87
88  // Sends the recent crashes list JS.
89  void UpdateUI();
90
91  scoped_refptr<CrashUploadList> upload_list_;
92  bool list_available_;
93  bool js_request_pending_;
94
95  DISALLOW_COPY_AND_ASSIGN(CrashesDOMHandler);
96};
97
98CrashesDOMHandler::CrashesDOMHandler()
99    : list_available_(false), js_request_pending_(false) {
100  upload_list_ = CrashUploadList::Create(this);
101}
102
103CrashesDOMHandler::~CrashesDOMHandler() {
104  upload_list_->ClearDelegate();
105}
106
107void CrashesDOMHandler::RegisterMessages() {
108  upload_list_->LoadCrashListAsynchronously();
109
110  web_ui()->RegisterMessageCallback("requestCrashList",
111      base::Bind(&CrashesDOMHandler::HandleRequestCrashes,
112                 base::Unretained(this)));
113}
114
115void CrashesDOMHandler::HandleRequestCrashes(const ListValue* args) {
116  if (!CrashesUI::CrashReportingEnabled() || list_available_)
117    UpdateUI();
118  else
119    js_request_pending_ = true;
120}
121
122void CrashesDOMHandler::OnCrashListAvailable() {
123  list_available_ = true;
124  if (js_request_pending_)
125    UpdateUI();
126}
127
128void CrashesDOMHandler::UpdateUI() {
129  bool crash_reporting_enabled = CrashesUI::CrashReportingEnabled();
130  ListValue crash_list;
131
132  if (crash_reporting_enabled) {
133    std::vector<CrashUploadList::CrashInfo> crashes;
134    upload_list_->GetUploadedCrashes(50, &crashes);
135
136    for (std::vector<CrashUploadList::CrashInfo>::iterator i = crashes.begin();
137         i != crashes.end(); ++i) {
138      DictionaryValue* crash = new DictionaryValue();
139      crash->SetString("id", i->crash_id);
140      crash->SetString("time",
141                       base::TimeFormatFriendlyDateAndTime(i->crash_time));
142      crash_list.Append(crash);
143    }
144  }
145
146  base::FundamentalValue enabled(crash_reporting_enabled);
147
148  const chrome::VersionInfo version_info;
149  base::StringValue version(version_info.Version());
150
151  web_ui()->CallJavascriptFunction("updateCrashList", enabled, crash_list,
152                                   version);
153}
154
155}  // namespace
156
157///////////////////////////////////////////////////////////////////////////////
158//
159// CrashesUI
160//
161///////////////////////////////////////////////////////////////////////////////
162
163CrashesUI::CrashesUI(content::WebUI* web_ui) : WebUIController(web_ui) {
164  web_ui->AddMessageHandler(new CrashesDOMHandler());
165
166  // Set up the chrome://crashes/ source.
167  Profile* profile = Profile::FromWebUI(web_ui);
168  ChromeURLDataManager::AddDataSource(profile, CreateCrashesUIHTMLSource());
169}
170
171// static
172base::RefCountedMemory* CrashesUI::GetFaviconResourceBytes(
173      ui::ScaleFactor scale_factor) {
174  return ResourceBundle::GetSharedInstance().
175      LoadDataResourceBytesForScale(IDR_SAD_FAVICON, scale_factor);
176}
177
178// static
179bool CrashesUI::CrashReportingEnabled() {
180#if defined(GOOGLE_CHROME_BUILD) && !defined(OS_CHROMEOS)
181  PrefService* prefs = g_browser_process->local_state();
182  return prefs->GetBoolean(prefs::kMetricsReportingEnabled);
183#elif defined(GOOGLE_CHROME_BUILD) && defined(OS_CHROMEOS)
184  bool reporting_enabled = false;
185  chromeos::CrosSettings::Get()->GetBoolean(chromeos::kStatsReportingPref,
186                                            &reporting_enabled);
187  return reporting_enabled;
188#else
189  return false;
190#endif
191}
192