src/jobs/widget_uninstall/task_remove_files.cpp

   1 /*
   2  * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  *    Licensed under the Apache License, Version 2.0 (the "License");
   5  *    you may not use this file except in compliance with the License.
   6  *    You may obtain a copy of the License at
   7  *
   8  *        http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *    Unless required by applicable law or agreed to in writing, software
  11  *    distributed under the License is distributed on an "AS IS" BASIS,
  12  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *    See the License for the specific language governing permissions and
  14  *    limitations under the License.
  15  */
  16 /**
  17  * @file    task_remove_files.cpp
  18  * @author  Lukasz Wrzosek(l.wrzosek@samsung.com)
  19  * @version 1.0
  20  * @brief   Implementation file for uninstaller task for removing widget files
  21  */
  22
  23 #include <unistd.h>
  24 #include <widget_uninstall/task_remove_files.h>
  25 #include <widget_uninstall/job_widget_uninstall.h>
  26 #include <widget_uninstall/uninstaller_context.h>
  27 #include <widget_uninstall/widget_uninstall_errors.h>
  28 #include <dpl/wrt-dao-rw/widget_dao.h>
  29 #include <dpl/wrt-dao-ro/widget_config.h>
  30 #include <dpl/assert.h>
  31 #include <dpl/exception.h>
  32 #include <pkgmgr/pkgmgr_parser.h>
  33 #include <errno.h>
  34 #include <string.h>
  35 #include <widget_install_to_external.h>
  36 #include <boost/filesystem.hpp>
  37 #include <dpl/log/secure_log.h>
  38
  39 namespace bf = boost::filesystem;
  40
  41 namespace Jobs {
  42 namespace WidgetUninstall {
  43 using namespace WrtDB;
  44
  45 TaskRemoveFiles::TaskRemoveFiles(UninstallerContext& context) :
  46     DPL::TaskDecl<TaskRemoveFiles>(this),
  47     m_context(context)
  48 {
  49     AddStep(&TaskRemoveFiles::StartStep);
  50     AddStep(&TaskRemoveFiles::StepRemoveInstallationDirectory);
  51     AddStep(&TaskRemoveFiles::StepRemoveFinished);
  52     AddStep(&TaskRemoveFiles::EndStep);
  53 }
  54
  55 TaskRemoveFiles::~TaskRemoveFiles()
  56 {}
  57
  58 void TaskRemoveFiles::StepRemoveInstallationDirectory()
  59 {
  60     _D("StepRemoveInstallationDirectory started");
  61     Try {
  62         // In some case, app2ext fail to uninstall(remove directory) because of mount issue.
  63         bool removed = false;
  64
  65         int ret = app2ext_get_app_location(m_context.tzPkgid.c_str());
  66
  67         // app2ext remove /opt/usr/apps[pkdid] directory in post_uninstall() function.
  68         if (APP2EXT_SD_CARD == ret) {
  69             _D("Remove external directory");
  70             Try {
  71                 WidgetInstallToExtSingleton::Instance().initialize(m_context.tzPkgid);
  72                 WidgetInstallToExtSingleton::Instance().uninstallation();
  73                 WidgetInstallToExtSingleton::Instance().deinitialize();
  74                 removed = true;
  75             }
  76             Catch(WidgetInstallToExt::Exception::ErrorInstallToExt)
  77             {
  78                 // Continue uninstall even fail to remove external directory.
  79                 // i.e.) SD card isn't inserted or unmounted.
  80                 // This behavior is recommended by platform(app2sd maintainer).
  81                 _E("Fail to remove external directory");
  82             }
  83         }
  84
  85         // If fail to remove directory in the app2ext retry remove directroy with below code.
  86         if (!removed && APP2EXT_NOT_INSTALLED != ret) {
  87             _D("Removing directory");
  88
  89             std::string userAppsPath = WrtDB::GlobalConfig::GetUserInstalledWidgetPath();
  90             userAppsPath += "/";
  91
  92             m_context.removeStarted = true;
  93             bf::path widgetDir(m_context.installedPath);
  94
  95             // installedPath
  96             std::string installedFullPath = bf::canonical(m_context.installedPath).string();
  97             if (installedFullPath.find(userAppsPath) == std::string::npos ||
  98                 installedFullPath.size() <= userAppsPath.size()) {
  99                 _E("Invalid installed path : %s", installedFullPath.c_str());
 100             } else {
 101                 Try{
 102                     JobWidgetUninstall::SecureRemove(widgetDir);
 103                 } Catch (bf::filesystem_error){
 104                     _E("Removing widget installation directory failed : %s", widgetDir.c_str());
 105                 }
 106             }
 107             bf::path dataDir(m_context.locations->getUserDataRootDir());
 108
 109             // data root path
 110             if (bf::exists(dataDir)) {
 111                 std::string dataRootPath = bf::canonical(dataDir).string();
 112                 if (dataRootPath.find(userAppsPath) == std::string::npos ||
 113                     dataRootPath.size() <= userAppsPath.size()) {
 114                     _E("Invalid data root path : %s", dataRootPath.c_str());
 115                 } else {
 116                     Try{
 117                         JobWidgetUninstall::SecureRemove(dataDir);
 118                     } Catch(bf::filesystem_error){
 119                         _W("%s is already removed", dataDir.c_str());
 120                     }
 121                 }
 122             }
 123         } else {
 124             _E("app is not installed");
 125             ThrowMsg(Exceptions::WidgetNotExist, "failed to get app location");
 126         }
 127     } Catch(Exception::RemoveFilesFailed) {
 128         ThrowMsg(Exceptions::RemoveFileFailure, "Cann't remove directory");
 129     }
 130     m_context.job->UpdateProgress(
 131         UninstallerContext::UNINSTALL_REMOVE_WIDGETDIR,
 132         "Widget INstallation Directory Removal Finished");
 133 }
 134
 135 void TaskRemoveFiles::StepRemoveFinished()
 136 {
 137     _D("StepRemoveFinished finished");
 138
 139     m_context.job->UpdateProgress(
 140         UninstallerContext::UNINSTALL_REMOVE_FINISHED,
 141         "Widget remove steps Finished");
 142 }
 143
 144 void TaskRemoveFiles::StartStep()
 145 {
 146     LOGI("--------- <TaskRemoveFiles> : START ----------");
 147 }
 148
 149 void TaskRemoveFiles::EndStep()
 150 {
 151     LOGI("--------- <TaskRemoveFiles> : END ----------");
 152 }
 153 } //namespace WidgetUninstall
 154 } //namespace Jobs