chrome/browser/sync_file_system/drive_backend/uninstall_app_task.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/sync_file_system/drive_backend/uninstall_app_task.h"
   6
   7 #include "base/bind.h"
   8 #include "base/location.h"
   9 #include "chrome/browser/drive/drive_api_util.h"
  10 #include "chrome/browser/drive/drive_service_interface.h"
  11 #include "chrome/browser/sync_file_system/drive_backend/drive_backend_constants.h"
  12 #include "chrome/browser/sync_file_system/drive_backend/drive_backend_util.h"
  13 #include "chrome/browser/sync_file_system/drive_backend/metadata_database.h"
  14 #include "chrome/browser/sync_file_system/drive_backend/metadata_database.pb.h"
  15 #include "chrome/browser/sync_file_system/drive_backend/sync_engine_context.h"
  16 #include "chrome/browser/sync_file_system/drive_backend/tracker_id_set.h"
  17 #include "chrome/browser/sync_file_system/syncable_file_system_util.h"
  18 #include "google_apis/drive/drive_api_parser.h"
  19
  20 namespace sync_file_system {
  21 namespace drive_backend {
  22
  23 UninstallAppTask::UninstallAppTask(SyncEngineContext* sync_context,
  24                                    const std::string& app_id,
  25                                    UninstallFlag uninstall_flag)
  26     : sync_context_(sync_context),
  27       app_id_(app_id),
  28       uninstall_flag_(uninstall_flag),
  29       app_root_tracker_id_(0),
  30       weak_ptr_factory_(this) {
  31 }
  32
  33 UninstallAppTask::~UninstallAppTask() {
  34 }
  35
  36 void UninstallAppTask::RunExclusive(const SyncStatusCallback& callback) {
  37   if (!IsContextReady()) {
  38     callback.Run(SYNC_STATUS_FAILED);
  39     return;
  40   }
  41
  42   if (uninstall_flag_ == RemoteFileSyncService::UNINSTALL_AND_KEEP_REMOTE) {
  43     SyncStatusCode status = metadata_database()->UnregisterApp(app_id_);
  44     callback.Run(status);
  45     return;
  46   }
  47   DCHECK_EQ(RemoteFileSyncService::UNINSTALL_AND_PURGE_REMOTE, uninstall_flag_);
  48
  49   int64 sync_root_tracker_id = metadata_database()->GetSyncRootTrackerID();
  50   TrackerIDSet trackers;
  51   if (!metadata_database()->FindTrackersByParentAndTitle(
  52           sync_root_tracker_id, app_id_, &trackers) ||
  53       !trackers.has_active()) {
  54     callback.Run(SYNC_STATUS_OK);
  55     return;
  56   }
  57
  58   FileTracker app_root_tracker;
  59   if (!metadata_database()->FindTrackerByTrackerID(
  60           trackers.active_tracker(), &app_root_tracker)) {
  61     NOTREACHED();
  62     callback.Run(SYNC_STATUS_FAILED);
  63     return;
  64   }
  65   app_root_tracker_id_ = app_root_tracker.tracker_id();
  66   DCHECK(app_root_tracker.has_synced_details());
  67
  68   drive_service()->DeleteResource(
  69       app_root_tracker.file_id(),
  70       std::string(),  // etag
  71       base::Bind(&UninstallAppTask::DidDeleteAppRoot,
  72                  weak_ptr_factory_.GetWeakPtr(),
  73                  callback,
  74                  metadata_database()->GetLargestKnownChangeID()));
  75 }
  76
  77 void UninstallAppTask::DidDeleteAppRoot(const SyncStatusCallback& callback,
  78                                         int64 change_id,
  79                                         google_apis::DriveApiErrorCode error) {
  80   SyncStatusCode status = DriveApiErrorCodeToSyncStatusCode(error);
  81   if (status != SYNC_STATUS_OK &&
  82       error != google_apis::HTTP_NOT_FOUND) {
  83     callback.Run(SYNC_STATUS_FAILED);
  84     return;
  85   }
  86
  87   status = metadata_database()->UnregisterApp(app_id_);
  88   callback.Run(status);
  89 }
  90
  91 bool UninstallAppTask::IsContextReady() {
  92   return sync_context_->GetMetadataDatabase() &&
  93       sync_context_->GetDriveService();
  94 }
  95
  96 MetadataDatabase* UninstallAppTask::metadata_database() {
  97   return sync_context_->GetMetadataDatabase();
  98 }
  99
 100 drive::DriveServiceInterface* UninstallAppTask::drive_service() {
 101   set_used_network(true);
 102   return sync_context_->GetDriveService();
 103 }
 104
 105 }  // namespace drive_backend
 106 }  // namespace sync_file_system