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             std::string widgetDir =
  73                 m_context.locations->getPackageInstallationDir();
  74             if (!WrtUtilRemove(widgetDir)) {
  75                 LogError("Removing widget installation directory failed");
  76             }
  77             std::string dataDir = m_context.locations->getUserDataRootDir();
  78             if (!WrtUtilRemove(dataDir)) {
  79                 LogWarning(dataDir + " is already removed");
  80             }
  81         } else {
  82             LogDebug("Removing sdcard directory");
  83             Try {
  84                 WidgetInstallToExtSingleton::Instance().initialize(m_context.tzPkgid);
  85                 WidgetInstallToExtSingleton::Instance().uninstallation();
  86                 WidgetInstallToExtSingleton::Instance().deinitialize();
  87             }
  88             Catch(WidgetInstallToExt::Exception::ErrorInstallToExt)
  89             {
  90                 Throw(Jobs::WidgetUninstall::TaskRemoveFiles::Exception::
  91                         RemoveFilesFailed);
  92             }
  93         }
  94     } Catch(Exception::RemoveFilesFailed) {
  95         ThrowMsg(Exceptions::RemoveFileFailure, "Cann't remove directory");
  96
  97     }
  98     m_context.job->UpdateProgress(
  99         UninstallerContext::UNINSTALL_REMOVE_WIDGETDIR,
 100         "Widget INstallation Directory Removal Finished");
 101 }
 102
 103 void TaskRemoveFiles::StepRemoveFinished()
 104 {
 105     LogInfo("StepRemoveFinished finished");
 106
 107     m_context.job->UpdateProgress(
 108         UninstallerContext::UNINSTALL_REMOVE_FINISHED,
 109         "Widget remove steps Finished");
 110 }
 111
 112 void TaskRemoveFiles::StepRemoveManifest()
 113 {
 114     std::ostringstream manifest_name;
 115     manifest_name << m_context.tzPkgid << ".xml";
 116     std::ostringstream destFile;
 117     destFile << "/opt/share/packages" << "/"; //TODO constant with path
 118     destFile << manifest_name.str();
 119     int ret1 = pkgmgr_parser_parse_manifest_for_uninstallation(
 120             destFile.str().c_str(), NULL);
 121     int ret2 = unlink(destFile.str().c_str());
 122     if (ret1 != 0) {
 123         LogWarning("Manifest file failed to parse for uninstallation");
 124     }
 125     if (ret2 != 0) {
 126         LogWarning("No manifest file found: " << destFile.str());
 127     } else {
 128         LogDebug("Manifest file removed: " << destFile.str());
 129     }
 130 }
 131
 132 void TaskRemoveFiles::StepRemoveExternalLocations()
 133 {
 134     if (!m_context.removeAbnormal) {
 135         WidgetDAO dao(DPL::FromUTF8String(m_context.tzAppid));
 136         LogDebug("Removing external locations:");
 137         WrtDB::ExternalLocationList externalPaths = dao.getWidgetExternalLocations();
 138         FOREACH(path, externalPaths)
 139         {
 140             if (WrtUtilFileExists(*path)) {
 141                 LogDebug("  -> " << *path);
 142                 int ret = remove(path->c_str());
 143                 if (ret != 0) {
 144                     LogError(
 145                             "Failed to remove the file: " << path->c_str() <<
 146                             " with error: " << strerror(errno));
 147                 }
 148             } else if (WrtUtilDirExists(*path)) {
 149                 LogDebug("  -> " << *path);
 150                 if (!WrtUtilRemove(*path)) {
 151                     Throw(
 152                             Jobs::WidgetUninstall::TaskRemoveFiles::Exception::
 153                             RemoveFilesFailed);
 154                 }
 155             } else {
 156                 LogWarning("  -> " << *path << "(no such a path)");
 157             }
 158         }
 159         dao.unregisterAllExternalLocations();
 160     }
 161 }
 162
 163 void TaskRemoveFiles::StepRemoveVconf()
 164 {
 165     if (!m_context.removeAbnormal) {
 166         std::string key =
 167             WrtDB::VconfConfig::GetVconfKeyRootPath(DPL::FromUTF8String(m_context.
 168                         tzAppid));
 169         if (vconf_unset_recursive(key.c_str())) {
 170             LogError("Fail to unset vconf file");
 171         } else {
 172             LogDebug("vconf file is removed");
 173         }
 174     }
 175 }
 176 } //namespace WidgetUninstall
 177 } //namespace Jobs