src/chrome/browser/ui/sync/profile_signin_confirmation_helper.cc

   1 // Copyright 2013 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/sync/profile_signin_confirmation_helper.h"
   6
   7 #include "base/bind.h"
   8 #include "base/memory/ref_counted.h"
   9 #include "base/prefs/pref_service.h"
  10 #include "base/strings/string16.h"
  11 #include "base/task/cancelable_task_tracker.h"
  12 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
  13 #include "chrome/browser/history/history_backend.h"
  14 #include "chrome/browser/history/history_db_task.h"
  15 #include "chrome/browser/history/history_service.h"
  16 #include "chrome/browser/history/history_service_factory.h"
  17 #include "chrome/browser/profiles/profile.h"
  18 #include "components/bookmarks/browser/bookmark_model.h"
  19 #include "components/history/core/browser/history_types.h"
  20 #include "content/public/browser/browser_thread.h"
  21 #include "ui/gfx/color_utils.h"
  22 #include "ui/native_theme/native_theme.h"
  23
  24 #if defined(ENABLE_EXTENSIONS)
  25 #include "chrome/browser/extensions/extension_service.h"
  26 #include "chrome/common/extensions/extension_constants.h"
  27 #include "chrome/common/extensions/sync_helper.h"
  28 #include "extensions/browser/extension_system.h"
  29 #include "extensions/common/constants.h"
  30 #include "extensions/common/extension.h"
  31 #include "extensions/common/extension_set.h"
  32 #endif
  33
  34 namespace {
  35
  36 const int kHistoryEntriesBeforeNewProfilePrompt = 10;
  37
  38 // Determines whether a profile has any typed URLs in its history.
  39 class HasTypedURLsTask : public history::HistoryDBTask {
  40  public:
  41   explicit HasTypedURLsTask(const base::Callback<void(bool)>& cb)
  42       : has_typed_urls_(false), cb_(cb) {
  43   }
  44
  45   bool RunOnDBThread(history::HistoryBackend* backend,
  46                      history::HistoryDatabase* db) override {
  47     history::URLRows rows;
  48     backend->GetAllTypedURLs(&rows);
  49     if (!rows.empty()) {
  50       DVLOG(1) << "ProfileSigninConfirmationHelper: profile contains "
  51                << rows.size() << " typed URLs";
  52       has_typed_urls_ = true;
  53     }
  54     return true;
  55   }
  56
  57   void DoneRunOnMainThread() override { cb_.Run(has_typed_urls_); }
  58
  59  private:
  60   ~HasTypedURLsTask() override {}
  61
  62   bool has_typed_urls_;
  63   base::Callback<void(bool)> cb_;
  64 };
  65
  66 bool HasBookmarks(Profile* profile) {
  67   BookmarkModel* bookmarks = BookmarkModelFactory::GetForProfile(profile);
  68   bool has_bookmarks = bookmarks && bookmarks->HasBookmarks();
  69   if (has_bookmarks)
  70     DVLOG(1) << "ProfileSigninConfirmationHelper: profile contains bookmarks";
  71   return has_bookmarks;
  72 }
  73
  74 // Helper functions for Chrome profile signin.
  75 class ProfileSigninConfirmationHelper {
  76  public:
  77   ProfileSigninConfirmationHelper(
  78       Profile* profile,
  79       const base::Callback<void(bool)>& return_result);
  80   void CheckHasHistory(int max_entries);
  81   void CheckHasTypedURLs();
  82
  83  private:
  84   // Deletes itself.
  85   ~ProfileSigninConfirmationHelper();
  86
  87   void OnHistoryQueryResults(size_t max_entries,
  88                              history::QueryResults* results);
  89   void ReturnResult(bool result);
  90
  91   // Weak pointer to the profile being signed-in.
  92   Profile* profile_;
  93
  94   // Used for async tasks.
  95   base::CancelableTaskTracker task_tracker_;
  96
  97   // Keep track of how many async requests are pending.
  98   int pending_requests_;
  99
 100   // Callback to pass the result back to the caller.
 101   const base::Callback<void(bool)> return_result_;
 102
 103   DISALLOW_COPY_AND_ASSIGN(ProfileSigninConfirmationHelper);
 104 };
 105
 106 ProfileSigninConfirmationHelper::ProfileSigninConfirmationHelper(
 107     Profile* profile,
 108     const base::Callback<void(bool)>& return_result)
 109     : profile_(profile),
 110       pending_requests_(0),
 111       return_result_(return_result) {
 112 }
 113
 114 ProfileSigninConfirmationHelper::~ProfileSigninConfirmationHelper() {
 115   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 116 }
 117
 118 void ProfileSigninConfirmationHelper::OnHistoryQueryResults(
 119     size_t max_entries,
 120     history::QueryResults* results) {
 121   history::QueryResults owned_results;
 122   results->Swap(&owned_results);
 123   bool too_much_history = owned_results.size() >= max_entries;
 124   if (too_much_history) {
 125     DVLOG(1) << "ProfileSigninConfirmationHelper: profile contains "
 126              << owned_results.size() << " history entries";
 127   }
 128   ReturnResult(too_much_history);
 129 }
 130
 131 void ProfileSigninConfirmationHelper::CheckHasHistory(int max_entries) {
 132   HistoryService* service =
 133       HistoryServiceFactory::GetForProfileWithoutCreating(profile_);
 134   pending_requests_++;
 135   if (!service) {
 136     ReturnResult(false);
 137     return;
 138   }
 139   history::QueryOptions opts;
 140   opts.max_count = max_entries;
 141   service->QueryHistory(
 142       base::string16(),
 143       opts,
 144       base::Bind(&ProfileSigninConfirmationHelper::OnHistoryQueryResults,
 145                  base::Unretained(this),
 146                  max_entries),
 147       &task_tracker_);
 148 }
 149
 150 void ProfileSigninConfirmationHelper::CheckHasTypedURLs() {
 151   HistoryService* service =
 152       HistoryServiceFactory::GetForProfileWithoutCreating(profile_);
 153   pending_requests_++;
 154   if (!service) {
 155     ReturnResult(false);
 156     return;
 157   }
 158   service->ScheduleDBTask(
 159       scoped_ptr<history::HistoryDBTask>(new HasTypedURLsTask(
 160           base::Bind(&ProfileSigninConfirmationHelper::ReturnResult,
 161                      base::Unretained(this)))),
 162       &task_tracker_);
 163 }
 164
 165 void ProfileSigninConfirmationHelper::ReturnResult(bool result) {
 166   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 167   // Pass |true| into the callback as soon as one of the tasks passes a
 168   // result of |true|, otherwise pass the last returned result.
 169   if (--pending_requests_ == 0 || result) {
 170     return_result_.Run(result);
 171
 172     // This leaks at shutdown if the HistoryService is destroyed, but
 173     // the process is going to die anyway.
 174     delete this;
 175   }
 176 }
 177
 178 }  // namespace
 179
 180 namespace ui {
 181
 182 SkColor GetSigninConfirmationPromptBarColor(SkAlpha alpha) {
 183   static const SkColor kBackgroundColor =
 184       ui::NativeTheme::instance()->GetSystemColor(
 185           ui::NativeTheme::kColorId_DialogBackground);
 186   return color_utils::BlendTowardOppositeLuminance(kBackgroundColor, alpha);
 187 }
 188
 189 bool HasBeenShutdown(Profile* profile) {
 190 #if defined(OS_IOS)
 191   // This check is not useful on iOS: the browser can be shut down without
 192   // explicit user action (for example, in response to memory pressure), and
 193   // this should be invisible to the user. The desktop assumption that the
 194   // profile going through a restart indicates something about user intention
 195   // does not hold. We rely on the other profile dirtiness checks.
 196   return false;
 197 #else
 198   bool has_been_shutdown = !profile->IsNewProfile();
 199   if (has_been_shutdown)
 200     DVLOG(1) << "ProfileSigninConfirmationHelper: profile is not new";
 201   return has_been_shutdown;
 202 #endif
 203 }
 204
 205 bool HasSyncedExtensions(Profile* profile) {
 206 #if defined(ENABLE_EXTENSIONS)
 207   extensions::ExtensionSystem* system =
 208       extensions::ExtensionSystem::Get(profile);
 209   if (system && system->extension_service()) {
 210     const extensions::ExtensionSet* extensions =
 211         system->extension_service()->extensions();
 212     for (extensions::ExtensionSet::const_iterator iter = extensions->begin();
 213          iter != extensions->end(); ++iter) {
 214       // The webstore is synced so that it stays put on the new tab
 215       // page, but since it's installed by default we don't want to
 216       // consider it when determining if the profile is dirty.
 217       if (extensions::sync_helper::IsSyncable(iter->get()) &&
 218           (*iter)->id() != extensions::kWebStoreAppId &&
 219           (*iter)->id() != extension_misc::kChromeAppId) {
 220         DVLOG(1) << "ProfileSigninConfirmationHelper: "
 221                  << "profile contains a synced extension: " << (*iter)->id();
 222         return true;
 223       }
 224     }
 225   }
 226 #endif
 227   return false;
 228 }
 229
 230 void CheckShouldPromptForNewProfile(
 231     Profile* profile,
 232     const base::Callback<void(bool)>& return_result) {
 233   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 234
 235   if (HasBeenShutdown(profile) ||
 236       HasBookmarks(profile) ||
 237       HasSyncedExtensions(profile)) {
 238     return_result.Run(true);
 239     return;
 240   }
 241   // Fire asynchronous queries for profile data.
 242   ProfileSigninConfirmationHelper* helper =
 243       new ProfileSigninConfirmationHelper(profile, return_result);
 244   helper->CheckHasHistory(kHistoryEntriesBeforeNewProfilePrompt);
 245   helper->CheckHasTypedURLs();
 246 }
 247
 248 }  // namespace ui