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diff --git a/chrome/browser/sync/personalization.cc b/chrome/browser/sync/personalization.cc
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+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifdef CHROME_PERSONALIZATION
+
+#include "chrome/browser/sync/personalization.h"
+
+#include "app/resource_bundle.h"
+#include "base/command_line.h"
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/path_service.h"
+#include "base/string_util.h"
+#include "chrome/app/chrome_dll_resource.h"
+#include "chrome/browser/browser.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/browser_url_handler.h"
+#include "chrome/browser/command_updater.h"
+#include "chrome/browser/options_window.h"
+#include "chrome/browser/profile.h"
+#include "chrome/browser/profile_manager.h"
+#include "chrome/common/chrome_paths.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/common/jstemplate_builder.h"
+#include "chrome/common/notification_service.h"
+#include "chrome/common/pref_service.h"
+#include "chrome/browser/dom_ui/new_tab_page_sync_handler.h"
+#include "chrome/browser/sync/personalization_strings.h"
+#include "chrome/browser/sync/auth_error_state.h"
+#include "chrome/browser/sync/profile_sync_service.h"
+#include "googleurl/src/gurl.h"
+#include "grit/app_resources.h"
+#include "grit/browser_resources.h"
+#include "net/url_request/url_request.h"
+
+using sync_api::SyncManager;
+
+// TODO(ncarter): Move these switches into chrome_switches.  They are here
+// now because we want to keep them secret during early development.
+namespace switches {
+  const wchar_t kSyncServiceURL[]  = L"sync-url";
+  const wchar_t kSyncServicePort[] = L"sync-port";
+  const wchar_t kSyncUserForTest[] = L"sync-user-for-test";
+  const wchar_t kSyncPasswordForTest[] = L"sync-password-for-test";
+}
+
+// TODO(munjal): Move these preferences to common/pref_names.h.
+// Names of various preferences.
+namespace prefs {
+  const wchar_t kSyncPath[] = L"sync";
+  const wchar_t kSyncLastSyncedTime[] = L"sync.last_synced_time";
+  const wchar_t kSyncUserName[]       = L"sync.username";
+  const wchar_t kSyncHasSetupCompleted[] = L"sync.has_setup_completed";
+}
+
+// Top-level path for our network layer DataSource.
+static const char kCloudyResourcesPath[] = "resources";
+// Path for cloudy:stats page.
+static const char kCloudyStatsPath[] = "stats";
+// Path for the gaia sync login dialog.
+static const char kCloudyGaiaLoginPath[] = "gaialogin";
+static const char kCloudyMergeAndSyncPath[] = "mergeandsync";
+static const char kCloudyThrobberPath[] = "throbber.png";
+static const char kCloudySetupFlowPath[] = "setup";
+
+namespace Personalization {
+
+static std::wstring MakeAuthErrorText(AuthErrorState state) {
+  switch (state) {
+    case AUTH_ERROR_INVALID_GAIA_CREDENTIALS:
+      return L"INVALID_GAIA_CREDENTIALS";
+    case AUTH_ERROR_USER_NOT_SIGNED_UP:
+      return L"USER_NOT_SIGNED_UP";
+    case AUTH_ERROR_CONNECTION_FAILED:
+      return L"CONNECTION_FAILED";
+    default:
+      return std::wstring();
+  }
+}
+
+bool IsP13NDisabled(Profile* profile) {
+  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  if (command_line->HasSwitch(switches::kDisableP13n))
+    return true;
+  return !profile || profile->GetProfilePersonalization() == NULL;
+}
+
+bool NeedsDOMUI(const GURL& url) {
+  return url.SchemeIs(kPersonalizationScheme) &&
+      (url.path().find(kCloudyGaiaLoginPath) != std::string::npos) ||
+      (url.path().find(kCloudySetupFlowPath) != std::string::npos) ||
+      (url.path().find(kCloudyMergeAndSyncPath) != std::string::npos);
+}
+
+class CloudyResourceSource : public ChromeURLDataManager::DataSource {
+ public:
+  CloudyResourceSource()
+      : DataSource(kCloudyResourcesPath, MessageLoop::current()) {
+  }
+  virtual ~CloudyResourceSource() { }
+
+  virtual void StartDataRequest(const std::string& path, int request_id);
+
+  virtual std::string GetMimeType(const std::string& path) const {
+    if (path == kCloudyThrobberPath)
+      return "image/png";
+    else
+      return "text/html";
+  }
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CloudyResourceSource);
+};
+
+class CloudyStatsSource : public ChromeURLDataManager::DataSource {
+ public:
+  CloudyStatsSource() : DataSource(kCloudyStatsPath, MessageLoop::current()) {
+  }
+  virtual ~CloudyStatsSource() { }
+  virtual void StartDataRequest(const std::string& path, int request_id) {
+    std::string response(MakeCloudyStats());
+    scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
+    html_bytes->data.resize(response.size());
+    std::copy(response.begin(), response.end(), html_bytes->data.begin());
+    SendResponse(request_id, html_bytes);
+  }
+  virtual std::string GetMimeType(const std::string& path) const {
+    return "text/html";
+  }
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CloudyStatsSource);
+};
+
+DOMMessageHandler* CreateNewTabPageHandler(DOMUI* dom_ui) {
+  return (new NewTabPageSyncHandler())->Attach(dom_ui);
+}
+
+std::string GetNewTabSource() {
+  static const StringPiece new_tab_html(
+      ResourceBundle::GetSharedInstance().GetRawDataResource(
+          IDR_NEW_TAB_P13N_HTML));
+
+  std::string data_uri("data:text/html,");
+  data_uri.append(std::string(new_tab_html.data(), new_tab_html.size()));
+  return GURL(data_uri).spec();
+}
+
+std::wstring GetMenuItemInfoText(Browser* browser) {
+  browser->command_updater()->UpdateCommandEnabled(IDC_P13N_INFO, true);
+  return kMenuLabelStartSync;
+}
+
+void HandleMenuItemClick(Profile* p) {
+  // The menu item is enabled either when the sync is not enabled by the user
+  // or when it's enabled but the user name is empty. In the former case enable
+  // sync. In the latter case, show the login dialog.
+  ProfileSyncService* service = p->GetProfilePersonalization()->sync_service();
+  DCHECK(service);
+  if (service->IsSyncEnabledByUser()) {
+      ShowOptionsWindow(OPTIONS_PAGE_USER_DATA, OPTIONS_GROUP_NONE, p);
+  } else {
+    service->EnableForUser();
+  }
+}
+
+}  // namespace Personalization
+
+class ProfilePersonalizationImpl : public ProfilePersonalization,
+                                   public NotificationObserver {
+ public:
+  explicit ProfilePersonalizationImpl(Profile *p)
+      : profile_(p) {
+    // g_browser_process and/or io_thread may not exist during testing.
+    if (g_browser_process && g_browser_process->io_thread()) {
+      // Add our network layer data source for 'cloudy' URLs.
+      // TODO(timsteele): This one belongs in BrowserAboutHandler.
+      g_browser_process->io_thread()->message_loop()->PostTask(FROM_HERE,
+          NewRunnableMethod(&chrome_url_data_manager,
+                            &ChromeURLDataManager::AddDataSource,
+                            new Personalization::CloudyStatsSource()));
+      g_browser_process->io_thread()->message_loop()->PostTask(FROM_HERE,
+          NewRunnableMethod(&chrome_url_data_manager,
+                            &ChromeURLDataManager::AddDataSource,
+                            new Personalization::CloudyResourceSource()));
+    }
+
+    registrar_.Add(this, NotificationType::BOOKMARK_MODEL_LOADED,
+                   Source<Profile>(profile_));
+  }
+  virtual ~ProfilePersonalizationImpl() {}
+
+  // ProfilePersonalization implementation
+  virtual ProfileSyncService* sync_service() {
+    if (!sync_service_.get())
+      InitSyncService();
+    return sync_service_.get();
+  }
+
+  // NotificationObserver implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) {
+    DCHECK_EQ(type.value, NotificationType::BOOKMARK_MODEL_LOADED);
+    if (!sync_service_.get())
+      InitSyncService();
+    registrar_.RemoveAll();
+  }
+
+  void InitSyncService() {
+    sync_service_.reset(new ProfileSyncService(profile_));
+    sync_service_->Initialize();
+  }
+
+ private:
+  Profile* profile_;
+  NotificationRegistrar registrar_;
+  scoped_ptr<ProfileSyncService> sync_service_;
+  DISALLOW_COPY_AND_ASSIGN(ProfilePersonalizationImpl);
+};
+
+namespace Personalization {
+
+void CloudyResourceSource::StartDataRequest(const std::string& path_raw,
+                                            int request_id) {
+  scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
+  if (path_raw == kCloudyThrobberPath) {
+    ResourceBundle::GetSharedInstance().LoadImageResourceBytes(IDR_THROBBER,
+        &html_bytes->data);
+    SendResponse(request_id, html_bytes);
+    return;
+  }
+
+  std::string response;
+  if (path_raw == kCloudyGaiaLoginPath) {
+    static const StringPiece html(ResourceBundle::GetSharedInstance()
+         .GetRawDataResource(IDR_GAIA_LOGIN_HTML));
+    response = html.as_string();
+  } else if (path_raw == kCloudyMergeAndSyncPath) {
+    static const StringPiece html(ResourceBundle::GetSharedInstance()
+         .GetRawDataResource(IDR_MERGE_AND_SYNC_HTML));
+    response = html.as_string();
+  } else if (path_raw == kCloudySetupFlowPath) {
+    static const StringPiece html(ResourceBundle::GetSharedInstance()
+        .GetRawDataResource(IDR_SYNC_SETUP_FLOW_HTML));
+    response = html.as_string();
+  }
+  // Send the response.
+  html_bytes->data.resize(response.size());
+  std::copy(response.begin(), response.end(), html_bytes->data.begin());
+  SendResponse(request_id, html_bytes);
+}
+
+ProfilePersonalization* CreateProfilePersonalization(Profile* p) {
+  return new ProfilePersonalizationImpl(p);
+}
+
+void CleanupProfilePersonalization(ProfilePersonalization* p) {
+  if (p) delete p;
+}
+
+static void AddBoolDetail(ListValue* details, const std::wstring& stat_name,
+                          bool stat_value) {
+  DictionaryValue* val = new DictionaryValue;
+  val->SetString(L"stat_name", stat_name);
+  val->SetBoolean(L"stat_value", stat_value);
+  details->Append(val);
+}
+
+static void AddIntDetail(ListValue* details, const std::wstring& stat_name,
+                         int64 stat_value) {
+  DictionaryValue* val = new DictionaryValue;
+  val->SetString(L"stat_name", stat_name);
+  val->SetString(L"stat_value", FormatNumber(stat_value));
+  details->Append(val);
+}
+
+std::string MakeCloudyStats() {
+  FilePath user_data_dir;
+  if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir))
+    return std::string();
+  ProfileManager* profile_manager = g_browser_process->profile_manager();
+  Profile* profile = profile_manager->GetDefaultProfile(user_data_dir);
+  ProfilePersonalization* p13n_profile = profile->GetProfilePersonalization();
+  ProfileSyncService* service = p13n_profile->sync_service();
+
+  DictionaryValue strings;
+  if (!service->IsSyncEnabledByUser()) {
+    strings.SetString(L"summary", L"SYNC DISABLED");
+  } else {
+    SyncManager::Status full_status(service->QueryDetailedSyncStatus());
+
+    strings.SetString(L"summary",
+        ProfileSyncService::BuildSyncStatusSummaryText(
+            full_status.summary));
+
+    strings.Set(L"authenticated",
+        new FundamentalValue(full_status.authenticated));
+    strings.SetString(L"auth_problem",
+        MakeAuthErrorText(service->GetAuthErrorState()));
+
+    strings.SetString(L"time_since_sync", service->GetLastSyncedTimeString());
+
+    ListValue* details = new ListValue();
+    strings.Set(L"details", details);
+    AddBoolDetail(details, L"Server Up", full_status.server_up);
+    AddBoolDetail(details, L"Server Reachable", full_status.server_reachable);
+    AddBoolDetail(details, L"Server Broken", full_status.server_broken);
+    AddBoolDetail(details, L"Notifications Enabled",
+                  full_status.notifications_enabled);
+    AddIntDetail(details, L"Notifications Received",
+                 full_status.notifications_received);
+    AddIntDetail(details, L"Notifications Sent",
+                 full_status.notifications_sent);
+    AddIntDetail(details, L"Unsynced Count", full_status.unsynced_count);
+    AddIntDetail(details, L"Conflicting Count", full_status.conflicting_count);
+    AddBoolDetail(details, L"Syncing", full_status.syncing);
+    AddBoolDetail(details, L"Syncer Paused", full_status.syncer_paused);
+    AddBoolDetail(details, L"Initial Sync Ended",
+                  full_status.initial_sync_ended);
+    AddBoolDetail(details, L"Syncer Stuck", full_status.syncer_stuck);
+    AddIntDetail(details, L"Updates Available", full_status.updates_available);
+    AddIntDetail(details, L"Updates Received", full_status.updates_received);
+    AddBoolDetail(details, L"Disk Full", full_status.disk_full);
+    AddBoolDetail(details, L"Invalid Store", full_status.invalid_store);
+    AddIntDetail(details, L"Max Consecutive Errors",
+                 full_status.max_consecutive_errors);
+  }
+
+  static const StringPiece sync_html(
+      ResourceBundle::GetSharedInstance().GetRawDataResource(
+      IDR_ABOUT_SYNC_HTML));
+
+  return jstemplate_builder::GetTemplateHtml(
+      sync_html, &strings , "t" /* template root node id */);
+}
+
+}  // namespace Personalization
+
+#endif  // CHROME_PERSONALIZATION