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 "chrome/browser/bookmarks/bookmark_model.h"
  12 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
  13 #include "chrome/browser/common/cancelable_request.h"
  14 #include "chrome/browser/extensions/extension_service.h"
  15 #include "chrome/browser/extensions/extension_system.h"
  16 #include "chrome/browser/history/history_backend.h"
  17 #include "chrome/browser/history/history_db_task.h"
  18 #include "chrome/browser/history/history_service.h"
  19 #include "chrome/browser/history/history_service_factory.h"
  20 #include "chrome/browser/history/history_types.h"
  21 #include "chrome/browser/profiles/profile.h"
  22 #include "chrome/common/extensions/extension.h"
  23 #include "chrome/common/extensions/extension_set.h"
  24 #include "chrome/common/extensions/sync_helper.h"
  25 #include "ui/gfx/color_utils.h"
  26 #include "ui/native_theme/native_theme.h"
  27
  28 // TODO(dconnelly): change VLOG to DVLOG (crbug.com/240195)
  29
  30 namespace {
  31
  32 const int kHistoryEntriesBeforeNewProfilePrompt = 10;
  33
  34 // Determines whether a profile has any typed URLs in its history.
  35 class HasTypedURLsTask : public history::HistoryDBTask {
  36  public:
  37   HasTypedURLsTask(const base::Callback<void(bool)>& cb)
  38       : has_typed_urls_(false), cb_(cb) {
  39   }
  40
  41   virtual bool RunOnDBThread(history::HistoryBackend* backend,
  42                              history::HistoryDatabase* db) OVERRIDE {
  43     history::URLRows rows;
  44     backend->GetAllTypedURLs(&rows);
  45     if (!rows.empty()) {
  46       VLOG(1) << "ProfileSigninConfirmationHelper: profile contains "
  47               << rows.size() << " typed URLs";
  48       has_typed_urls_ = true;
  49     }
  50     return true;
  51   }
  52
  53   virtual void DoneRunOnMainThread() OVERRIDE {
  54     cb_.Run(has_typed_urls_);
  55   }
  56
  57  private:
  58   virtual ~HasTypedURLsTask() {}
  59   bool has_typed_urls_;
  60   base::Callback<void(bool)> cb_;
  61 };
  62
  63 bool HasBookmarks(Profile* profile) {
  64   BookmarkModel* bookmarks = BookmarkModelFactory::GetForProfile(profile);
  65   bool has_bookmarks = bookmarks && bookmarks->HasBookmarks();
  66   if (has_bookmarks)
  67     VLOG(1) << "ProfileSigninConfirmationHelper: profile contains bookmarks";
  68   return has_bookmarks;
  69 }
  70
  71 // Helper functions for Chrome profile signin.
  72 class ProfileSigninConfirmationHelper
  73     : public base::RefCounted<ProfileSigninConfirmationHelper> {
  74  public:
  75   ProfileSigninConfirmationHelper(
  76       Profile* profile,
  77       const base::Callback<void(bool)>& return_result);
  78   void CheckHasHistory(int max_entries);
  79   void CheckHasTypedURLs();
  80   void set_pending_requests(int requests);
  81
  82  private:
  83   friend class base::RefCounted<ProfileSigninConfirmationHelper>;
  84
  85   ~ProfileSigninConfirmationHelper();
  86
  87   void OnHistoryQueryResults(size_t max_entries,
  88                              CancelableRequestProvider::Handle handle,
  89                              history::QueryResults* results);
  90   void ReturnResult(bool result);
  91
  92   // Weak pointer to the profile being signed-in.
  93   Profile* profile_;
  94
  95   // Used for async tasks.
  96   CancelableRequestConsumer request_consumer_;
  97
  98   // Keep track of how many async requests are pending.
  99   int pending_requests_;
 100
 101   // Indicates whether the result has already been returned to caller.
 102   bool result_returned_;
 103
 104   // Callback to pass the result back to the caller.
 105   const base::Callback<void(bool)> return_result_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(ProfileSigninConfirmationHelper);
 108 };
 109
 110 ProfileSigninConfirmationHelper::ProfileSigninConfirmationHelper(
 111     Profile* profile,
 112     const base::Callback<void(bool)>& return_result)
 113     : profile_(profile),
 114       pending_requests_(0),
 115       result_returned_(false),
 116       return_result_(return_result) {
 117 }
 118
 119 ProfileSigninConfirmationHelper::~ProfileSigninConfirmationHelper() {
 120 }
 121
 122 void ProfileSigninConfirmationHelper::OnHistoryQueryResults(
 123     size_t max_entries,
 124     CancelableRequestProvider::Handle handle,
 125     history::QueryResults* results) {
 126   history::QueryResults owned_results;
 127   results->Swap(&owned_results);
 128   bool too_much_history = owned_results.size() >= max_entries;
 129   if (too_much_history) {
 130     VLOG(1) << "ProfileSigninConfirmationHelper: profile contains "
 131             << owned_results.size() << " history entries";
 132   }
 133   ReturnResult(too_much_history);
 134 }
 135
 136 void ProfileSigninConfirmationHelper::CheckHasHistory(int max_entries) {
 137   HistoryService* service =
 138       HistoryServiceFactory::GetForProfileWithoutCreating(profile_);
 139   if (!service) {
 140     ReturnResult(false);
 141     return;
 142   }
 143   history::QueryOptions opts;
 144   opts.max_count = max_entries;
 145   service->QueryHistory(
 146       string16(), opts, &request_consumer_,
 147       base::Bind(&ProfileSigninConfirmationHelper::OnHistoryQueryResults,
 148                  this,
 149                  max_entries));
 150 }
 151
 152 void ProfileSigninConfirmationHelper::CheckHasTypedURLs() {
 153   HistoryService* service =
 154       HistoryServiceFactory::GetForProfileWithoutCreating(profile_);
 155   if (!service) {
 156     ReturnResult(false);
 157     return;
 158   }
 159   service->ScheduleDBTask(
 160       new HasTypedURLsTask(
 161           base::Bind(
 162               &ProfileSigninConfirmationHelper::ReturnResult,
 163               this)),
 164       &request_consumer_);
 165 }
 166
 167 void ProfileSigninConfirmationHelper::set_pending_requests(int requests) {
 168   pending_requests_ = requests;
 169 }
 170
 171 void ProfileSigninConfirmationHelper::ReturnResult(bool result) {
 172   // Pass |true| into the callback as soon as one of the tasks passes a
 173   // result of |true|, otherwise pass the last returned result.
 174   if (!result_returned_ && (--pending_requests_ == 0 || result)) {
 175     result_returned_ = true;
 176     request_consumer_.CancelAllRequests();
 177     return_result_.Run(result);
 178   }
 179 }
 180
 181 }  // namespace
 182
 183 namespace ui {
 184
 185 SkColor GetSigninConfirmationPromptBarColor(SkAlpha alpha) {
 186   static const SkColor kBackgroundColor =
 187       ui::NativeTheme::instance()->GetSystemColor(
 188           ui::NativeTheme::kColorId_DialogBackground);
 189   return color_utils::BlendTowardOppositeLuminance(kBackgroundColor, alpha);
 190 }
 191
 192 bool HasBeenShutdown(Profile* profile) {
 193   bool has_been_shutdown = !profile->IsNewProfile();
 194   if (has_been_shutdown)
 195     VLOG(1) << "ProfileSigninConfirmationHelper: profile is not new";
 196   return has_been_shutdown;
 197 }
 198
 199 bool HasSyncedExtensions(Profile* profile) {
 200   extensions::ExtensionSystem* system =
 201       extensions::ExtensionSystem::Get(profile);
 202   if (system && system->extension_service()) {
 203     const ExtensionSet* extensions = system->extension_service()->extensions();
 204     for (ExtensionSet::const_iterator iter = extensions->begin();
 205          iter != extensions->end(); ++iter) {
 206       // The webstore is synced so that it stays put on the new tab
 207       // page, but since it's installed by default we don't want to
 208       // consider it when determining if the profile is dirty.
 209       if (extensions::sync_helper::IsSyncable(iter->get()) &&
 210           (*iter)->id() != extension_misc::kWebStoreAppId &&
 211           (*iter)->id() != extension_misc::kChromeAppId) {
 212         VLOG(1) << "ProfileSigninConfirmationHelper: "
 213                 << "profile contains a synced extension: " << (*iter)->id();
 214         return true;
 215       }
 216     }
 217   }
 218   return false;
 219 }
 220
 221 void CheckShouldPromptForNewProfile(
 222     Profile* profile,
 223     const base::Callback<void(bool)>& return_result) {
 224   if (HasBeenShutdown(profile) ||
 225       HasBookmarks(profile) ||
 226       HasSyncedExtensions(profile)) {
 227     return_result.Run(true);
 228     return;
 229   }
 230   // Fire asynchronous queries for profile data.
 231   scoped_refptr<ProfileSigninConfirmationHelper> helper =
 232       new ProfileSigninConfirmationHelper(profile, return_result);
 233   const int requests = 2;
 234   helper->set_pending_requests(requests);
 235   helper->CheckHasHistory(kHistoryEntriesBeforeNewProfilePrompt);
 236   helper->CheckHasTypedURLs();
 237 }
 238
 239 }  // namespace ui