1 // Copyright (c) 2011 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 "base/i18n/time_formatting.h"
8 #include "base/memory/ref_counted_memory.h"
9 #include "base/utf_string_conversions.h"
10 #include "base/values.h"
11 #include "chrome/browser/browser_process.h"
12 #include "chrome/browser/crash_upload_list.h"
13 #include "chrome/browser/prefs/pref_service.h"
14 #include "chrome/browser/profiles/profile.h"
15 #include "chrome/browser/ui/webui/chrome_url_data_manager.h"
16 #include "chrome/common/chrome_version_info.h"
17 #include "chrome/common/jstemplate_builder.h"
18 #include "chrome/common/pref_names.h"
19 #include "chrome/common/url_constants.h"
20 #include "content/browser/tab_contents/tab_contents.h"
21 #include "grit/browser_resources.h"
22 #include "grit/chromium_strings.h"
23 #include "grit/generated_resources.h"
24 #include "grit/theme_resources.h"
25 #include "ui/base/l10n/l10n_util.h"
26 #include "ui/base/resource/resource_bundle.h"
27
28 #if defined(OS_CHROMEOS)
29 #include "chrome/browser/chromeos/metrics_cros_settings_provider.h"
30 #endif
31
32 namespace {
33
34 ///////////////////////////////////////////////////////////////////////////////
35 //
36 // CrashesUIHTMLSource
37 //
38 ///////////////////////////////////////////////////////////////////////////////
39
40 class CrashesUIHTMLSource : public ChromeURLDataManager::DataSource {
41 public:
CrashesUIHTMLSource()42 CrashesUIHTMLSource()
43 : DataSource(chrome::kChromeUICrashesHost, MessageLoop::current()) {}
44
45 // Called when the network layer has requested a resource underneath
46 // the path we registered.
47 virtual void StartDataRequest(const std::string& path,
48 bool is_incognito,
49 int request_id);
GetMimeType(const std::string &) const50 virtual std::string GetMimeType(const std::string&) const {
51 return "text/html";
52 }
53
54 private:
~CrashesUIHTMLSource()55 ~CrashesUIHTMLSource() {}
56
57 DISALLOW_COPY_AND_ASSIGN(CrashesUIHTMLSource);
58 };
59
StartDataRequest(const std::string & path,bool is_incognito,int request_id)60 void CrashesUIHTMLSource::StartDataRequest(const std::string& path,
61 bool is_incognito,
62 int request_id) {
63 DictionaryValue localized_strings;
64 localized_strings.SetString("crashesTitle",
65 l10n_util::GetStringUTF16(IDS_CRASHES_TITLE));
66 localized_strings.SetString("crashCountFormat",
67 l10n_util::GetStringUTF16(IDS_CRASHES_CRASH_COUNT_BANNER_FORMAT));
68 localized_strings.SetString("crashHeaderFormat",
69 l10n_util::GetStringUTF16(IDS_CRASHES_CRASH_HEADER_FORMAT));
70 localized_strings.SetString("crashTimeFormat",
71 l10n_util::GetStringUTF16(IDS_CRASHES_CRASH_TIME_FORMAT));
72 localized_strings.SetString("bugLinkText",
73 l10n_util::GetStringUTF16(IDS_CRASHES_BUG_LINK_LABEL));
74 localized_strings.SetString("noCrashesMessage",
75 l10n_util::GetStringUTF16(IDS_CRASHES_NO_CRASHES_MESSAGE));
76 localized_strings.SetString("disabledHeader",
77 l10n_util::GetStringUTF16(IDS_CRASHES_DISABLED_HEADER));
78 localized_strings.SetString("disabledMessage",
79 l10n_util::GetStringUTF16(IDS_CRASHES_DISABLED_MESSAGE));
80
81 ChromeURLDataManager::DataSource::SetFontAndTextDirection(&localized_strings);
82
83 static const base::StringPiece crashes_html(
84 ResourceBundle::GetSharedInstance().GetRawDataResource(IDR_CRASHES_HTML));
85 std::string full_html =
86 jstemplate_builder::GetI18nTemplateHtml(crashes_html, &localized_strings);
87 jstemplate_builder::AppendJsTemplateSourceHtml(&full_html);
88
89 scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
90 html_bytes->data.resize(full_html.size());
91 std::copy(full_html.begin(), full_html.end(), html_bytes->data.begin());
92
93 SendResponse(request_id, html_bytes);
94 }
95
96 ////////////////////////////////////////////////////////////////////////////////
97 //
98 // CrashesDOMHandler
99 //
100 ////////////////////////////////////////////////////////////////////////////////
101
102 // The handler for Javascript messages for the chrome://crashes/ page.
103 class CrashesDOMHandler : public WebUIMessageHandler,
104 public CrashUploadList::Delegate {
105 public:
106 explicit CrashesDOMHandler();
107 virtual ~CrashesDOMHandler();
108
109 // WebUIMessageHandler implementation.
110 virtual WebUIMessageHandler* Attach(WebUI* web_ui);
111 virtual void RegisterMessages();
112
113 // CrashUploadList::Delegate implemenation.
114 virtual void OnCrashListAvailable();
115
116 private:
117 // Asynchronously fetches the list of crashes. Called from JS.
118 void HandleRequestCrashes(const ListValue* args);
119
120 // Sends the recent crashes list JS.
121 void UpdateUI();
122
123 // Returns whether or not crash reporting is enabled.
124 bool CrashReportingEnabled() const;
125
126 scoped_refptr<CrashUploadList> upload_list_;
127 bool list_available_;
128 bool js_request_pending_;
129
130 DISALLOW_COPY_AND_ASSIGN(CrashesDOMHandler);
131 };
132
CrashesDOMHandler()133 CrashesDOMHandler::CrashesDOMHandler()
134 : list_available_(false), js_request_pending_(false) {
135 upload_list_ = CrashUploadList::Create(this);
136 }
137
~CrashesDOMHandler()138 CrashesDOMHandler::~CrashesDOMHandler() {
139 upload_list_->ClearDelegate();
140 }
141
Attach(WebUI * web_ui)142 WebUIMessageHandler* CrashesDOMHandler::Attach(WebUI* web_ui) {
143 upload_list_->LoadCrashListAsynchronously();
144 return WebUIMessageHandler::Attach(web_ui);
145 }
146
RegisterMessages()147 void CrashesDOMHandler::RegisterMessages() {
148 web_ui_->RegisterMessageCallback("requestCrashList",
149 NewCallback(this, &CrashesDOMHandler::HandleRequestCrashes));
150 }
151
HandleRequestCrashes(const ListValue * args)152 void CrashesDOMHandler::HandleRequestCrashes(const ListValue* args) {
153 if (!CrashReportingEnabled() || list_available_)
154 UpdateUI();
155 else
156 js_request_pending_ = true;
157 }
158
OnCrashListAvailable()159 void CrashesDOMHandler::OnCrashListAvailable() {
160 list_available_ = true;
161 if (js_request_pending_)
162 UpdateUI();
163 }
164
UpdateUI()165 void CrashesDOMHandler::UpdateUI() {
166 bool crash_reporting_enabled = CrashReportingEnabled();
167 ListValue crash_list;
168
169 if (crash_reporting_enabled) {
170 std::vector<CrashUploadList::CrashInfo> crashes;
171 upload_list_->GetUploadedCrashes(50, &crashes);
172
173 for (std::vector<CrashUploadList::CrashInfo>::iterator i = crashes.begin();
174 i != crashes.end(); ++i) {
175 DictionaryValue* crash = new DictionaryValue();
176 crash->SetString("id", i->crash_id);
177 crash->SetString("time",
178 base::TimeFormatFriendlyDateAndTime(i->crash_time));
179 crash_list.Append(crash);
180 }
181 }
182
183 FundamentalValue enabled(crash_reporting_enabled);
184
185 const chrome::VersionInfo version_info;
186 StringValue version(version_info.Version());
187
188 web_ui_->CallJavascriptFunction("updateCrashList", enabled, crash_list,
189 version);
190 }
191
CrashReportingEnabled() const192 bool CrashesDOMHandler::CrashReportingEnabled() const {
193 #if defined(GOOGLE_CHROME_BUILD) && !defined(OS_CHROMEOS)
194 PrefService* prefs = g_browser_process->local_state();
195 return prefs->GetBoolean(prefs::kMetricsReportingEnabled);
196 #elif defined(GOOGLE_CHROME_BUILD) && defined(OS_CHROMEOS)
197 return chromeos::MetricsCrosSettingsProvider::GetMetricsStatus();
198 #else
199 return false;
200 #endif
201 }
202
203 } // namespace
204
205 ///////////////////////////////////////////////////////////////////////////////
206 //
207 // CrashesUI
208 //
209 ///////////////////////////////////////////////////////////////////////////////
210
CrashesUI(TabContents * contents)211 CrashesUI::CrashesUI(TabContents* contents) : WebUI(contents) {
212 AddMessageHandler((new CrashesDOMHandler())->Attach(this));
213
214 CrashesUIHTMLSource* html_source = new CrashesUIHTMLSource();
215
216 // Set up the chrome://crashes/ source.
217 contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
218 }
219
220 // static
GetFaviconResourceBytes()221 RefCountedMemory* CrashesUI::GetFaviconResourceBytes() {
222 return ResourceBundle::GetSharedInstance().
223 LoadDataResourceBytes(IDR_SAD_FAVICON);
224 }
225