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/wrt-dao-ro/vconf_config.h>
  31 #include <dpl/assert.h>
  32 #include <dpl/exception.h>
  33 #include <dpl/utils/wrt_utility.h>
  34 #include <ail.h>
  35 #include <pkgmgr/pkgmgr_parser.h>
  36 #include <errno.h>
  37 #include <string.h>
  38 #include <widget_install_to_external.h>
  39 #include <vconf.h>
  40
  41 namespace Jobs {
  42 namespace WidgetUninstall {
  43 using namespace WrtDB;
  44
  45 namespace {
  46 const char * const VCONF_KEY_PREFIX = "file/private/";
  47 }
  48
  49 TaskRemoveFiles::TaskRemoveFiles(UninstallerContext& context) :
  50     DPL::TaskDecl<TaskRemoveFiles>(this),
  51     m_context(context)
  52 {
  53     AddStep(&TaskRemoveFiles::StepRemoveInstallationDirectory);
  54     AddStep(&TaskRemoveFiles::StepRemoveManifest);
  55     AddStep(&TaskRemoveFiles::StepRemoveExternalLocations);
  56     AddStep(&TaskRemoveFiles::StepRemoveVconf);
  57     AddStep(&TaskRemoveFiles::StepRemoveFinished);
  58 }
  59
  60 TaskRemoveFiles::~TaskRemoveFiles()
  61 {}
  62
  63 void TaskRemoveFiles::StepRemoveInstallationDirectory()
  64 {
  65     LogInfo("StepRemoveInstallationDirectory started");
  66     Try {
  67         if (APP2EXT_SD_CARD !=
  68                 app2ext_get_app_location(m_context.tzPkgid.c_str()))
  69         {
  70             LogDebug("Removing directory");
  71             m_context.removeStarted = true;
  72             if (!WrtUtilRemove(m_context.installedPath)) {
  73                 LogError("Removing widget installation directory failed : " <<
  74                         m_context.installedPath);
  75             }
  76             std::string dataDir = m_context.locations->getUserDataRootDir();
  77             if (!WrtUtilRemove(dataDir)) {
  78                 LogWarning(dataDir + " is already removed");
  79             }
  80         } else {
  81             LogDebug("Removing sdcard directory");
  82             Try {
  83                 WidgetInstallToExtSingleton::Instance().initialize(m_context.tzPkgid);
  84                 WidgetInstallToExtSingleton::Instance().uninstallation();
  85                 WidgetInstallToExtSingleton::Instance().deinitialize();
  86             }
  87             Catch(WidgetInstallToExt::Exception::ErrorInstallToExt)
  88             {
  89                 Throw(Jobs::WidgetUninstall::TaskRemoveFiles::Exception::
  90                         RemoveFilesFailed);
  91             }
  92         }
  93     } Catch(Exception::RemoveFilesFailed) {
  94         ThrowMsg(Exceptions::RemoveFileFailure, "Cann't remove directory");
  95
  96     }
  97     m_context.job->UpdateProgress(
  98         UninstallerContext::UNINSTALL_REMOVE_WIDGETDIR,
  99         "Widget INstallation Directory Removal Finished");
 100 }
 101
 102 void TaskRemoveFiles::StepRemoveFinished()
 103 {
 104     LogInfo("StepRemoveFinished finished");
 105
 106     m_context.job->UpdateProgress(
 107         UninstallerContext::UNINSTALL_REMOVE_FINISHED,
 108         "Widget remove steps Finished");
 109 }
 110
 111 void TaskRemoveFiles::StepRemoveManifest()
 112 {
 113     std::ostringstream manifest_name;
 114     manifest_name << m_context.tzPkgid << ".xml";
 115     std::ostringstream destFile;
 116     const std::string PRELOAD_INSTALLED_PATH = "/usr/apps";
 117     if (0 == (m_context.installedPath).compare(0, PRELOAD_INSTALLED_PATH.length(),
 118                 PRELOAD_INSTALLED_PATH)) {
 119         LogDebug("This widget is prealoded.");
 120         destFile << "/usr/share/packages" << "/"; //TODO constant with path
 121     } else {
 122         destFile << "/opt/share/packages" << "/"; //TODO constant with path
 123     }
 124     destFile << manifest_name.str();
 125     int ret1 = pkgmgr_parser_parse_manifest_for_uninstallation(
 126             destFile.str().c_str(), NULL);
 127     int ret2 = unlink(destFile.str().c_str());
 128     if (ret1 != 0) {
 129         LogWarning("Manifest file failed to parse for uninstallation");
 130     }
 131     if (ret2 != 0) {
 132         LogWarning("No manifest file found: " << destFile.str());
 133     } else {
 134         LogDebug("Manifest file removed: " << destFile.str());
 135     }
 136 }
 137
 138 void TaskRemoveFiles::StepRemoveExternalLocations()
 139 {
 140     if (!m_context.removeAbnormal) {
 141         WidgetDAO dao(DPL::FromUTF8String(m_context.tzAppid));
 142         LogDebug("Removing external locations:");
 143         WrtDB::ExternalLocationList externalPaths = dao.getWidgetExternalLocations();
 144         FOREACH(path, externalPaths)
 145         {
 146             if (WrtUtilFileExists(*path)) {
 147                 LogDebug("  -> " << *path);
 148                 int ret = remove(path->c_str());
 149                 if (ret != 0) {
 150                     LogError(
 151                             "Failed to remove the file: " << path->c_str() <<
 152                             " with error: " << strerror(errno));
 153                 }
 154             } else if (WrtUtilDirExists(*path)) {
 155                 LogDebug("  -> " << *path);
 156                 if (!WrtUtilRemove(*path)) {
 157                     Throw(
 158                             Jobs::WidgetUninstall::TaskRemoveFiles::Exception::
 159                             RemoveFilesFailed);
 160                 }
 161             } else {
 162                 LogWarning("  -> " << *path << "(no such a path)");
 163             }
 164         }
 165         dao.unregisterAllExternalLocations();
 166     }
 167 }
 168
 169 void TaskRemoveFiles::StepRemoveVconf()
 170 {
 171     if (!m_context.removeAbnormal) {
 172         std::string key =
 173             WrtDB::VconfConfig::GetVconfKeyRootPath(DPL::FromUTF8String(m_context.
 174                         tzAppid));
 175         if (vconf_unset_recursive(key.c_str())) {
 176             LogError("Fail to unset vconf file");
 177         } else {
 178             LogDebug("vconf file is removed");
 179         }
 180     }
 181 }
 182 } //namespace WidgetUninstall
 183 } //namespace Jobs