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