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 <dpl/wrt-dao-rw/widget_dao.h>
  28 #include <dpl/wrt-dao-ro/widget_config.h>
  29 #include <dpl/wrt-dao-ro/vconf_config.h>
  30 #include <dpl/assert.h>
  31 #include <dpl/utils/wrt_utility.h>
  32 #include <ail.h>
  33 #include <pkgmgr/pkgmgr_parser.h>
  34 #include <errno.h>
  35 #include <string.h>
  36 #include <widget_install_to_external.h>
  37 #include <vconf.h>
  38
  39 namespace Jobs {
  40 namespace WidgetUninstall {
  41 using namespace WrtDB;
  42
  43 namespace {
  44 const char * const VCONF_KEY_PREFIX = "file/private/";
  45 }
  46
  47 TaskRemoveFiles::TaskRemoveFiles(UninstallerContext& context) :
  48     DPL::TaskDecl<TaskRemoveFiles>(this),
  49     m_context(context)
  50 {
  51     if (!m_context.isExternalWidget) {
  52         AddStep(&TaskRemoveFiles::StepRemoveInstallationDirectory);
  53     } else {
  54         AddStep(&TaskRemoveFiles::StepRemoveExternalWidget);
  55     }
  56     AddStep(&TaskRemoveFiles::StepRemoveManifest);
  57     AddStep(&TaskRemoveFiles::StepRemoveExternalLocations);
  58     AddStep(&TaskRemoveFiles::StepRemoveVconf);
  59     AddStep(&TaskRemoveFiles::StepRemoveFinished);
  60 }
  61
  62 TaskRemoveFiles::~TaskRemoveFiles()
  63 {}
  64
  65 void TaskRemoveFiles::StepRemoveInstallationDirectory()
  66 {
  67     LogInfo("StepRemoveInstallationDirectory started");
  68
  69     m_context.removeStarted = true;
  70     std::string widgetDir =
  71         m_context.locations->getPackageInstallationDir();
  72     if (!WrtUtilRemove(widgetDir)) {
  73         LogWarning("Removing widget installation directory failed");
  74     }
  75     std::string dataDir = m_context.locations->getUserDataRootDir();
  76     if (!WrtUtilRemove(dataDir)) {
  77         LogWarning(dataDir + " is already removed");
  78     }
  79     m_context.job->UpdateProgress(
  80         UninstallerContext::UNINSTALL_REMOVE_WIDGETDIR,
  81         "Widget INstallation Directory Removal Finished");
  82 }
  83
  84 void TaskRemoveFiles::StepRemoveFinished()
  85 {
  86     LogInfo("StepRemoveFinished finished");
  87
  88     m_context.job->UpdateProgress(
  89         UninstallerContext::UNINSTALL_REMOVE_FINISHED,
  90         "Widget remove steps Finished");
  91 }
  92
  93 void TaskRemoveFiles::StepRemoveManifest()
  94 {
  95     std::ostringstream manifest_name;
  96     manifest_name << m_context.tzPkgid << ".xml";
  97     std::ostringstream destFile;
  98     destFile << "/opt/share/packages" << "/"; //TODO constant with path
  99     destFile << manifest_name.str();
 100     int ret1 = pkgmgr_parser_parse_manifest_for_uninstallation(
 101             destFile.str().c_str(), NULL);
 102     int ret2 = unlink(destFile.str().c_str());
 103     if (ret1 != 0) {
 104         LogWarning("Manifest file failed to parse for uninstallation");
 105     }
 106     if (ret2 != 0) {
 107         LogWarning("No manifest file found: " << destFile.str());
 108     } else {
 109         LogDebug("Manifest file removed: " << destFile.str());
 110     }
 111 }
 112
 113 void TaskRemoveFiles::StepRemoveExternalLocations()
 114 {
 115     if (!m_context.removeAbnormal) {
 116         WidgetDAO dao(DPL::FromUTF8String(m_context.tzAppid));
 117         LogDebug("Removing external locations:");
 118         WrtDB::ExternalLocationList externalPaths = dao.getWidgetExternalLocations();
 119         FOREACH(path, externalPaths)
 120         {
 121             if (WrtUtilFileExists(*path)) {
 122                 LogDebug("  -> " << *path);
 123                 int ret = remove(path->c_str());
 124                 if (ret != 0) {
 125                     LogError(
 126                             "Failed to remove the file: " << path->c_str() <<
 127                             " with error: " << strerror(errno));
 128                 }
 129             } else if (WrtUtilDirExists(*path)) {
 130                 LogDebug("  -> " << *path);
 131                 if (!WrtUtilRemove(*path)) {
 132                     Throw(
 133                             Jobs::WidgetUninstall::TaskRemoveFiles::Exception::
 134                             RemoveFilesFailed);
 135                 }
 136             } else {
 137                 LogWarning("  -> " << *path << "(no such a path)");
 138             }
 139         }
 140         dao.unregisterAllExternalLocations();
 141     }
 142 }
 143
 144 void TaskRemoveFiles::StepRemoveVconf()
 145 {
 146     if (!m_context.removeAbnormal) {
 147         std::string key =
 148             WrtDB::VconfConfig::GetVconfKeyRootPath(DPL::FromUTF8String(m_context.
 149                         tzAppid));
 150         if (vconf_unset_recursive(key.c_str())) {
 151             LogError("Fail to unset vconf file");
 152         } else {
 153             LogDebug("vconf file is removed");
 154         }
 155     }
 156 }
 157
 158 void TaskRemoveFiles::StepRemoveExternalWidget()
 159 {
 160     Try {
 161         WidgetInstallToExtSingleton::Instance().initialize(m_context.tzPkgid);
 162         WidgetInstallToExtSingleton::Instance().uninstallation();
 163         WidgetInstallToExtSingleton::Instance().deinitialize();
 164     }
 165     Catch(WidgetInstallToExt::Exception::ErrorInstallToExt)
 166     {
 167         Throw(
 168             Jobs::WidgetUninstall::TaskRemoveFiles::Exception::
 169                 RemoveFilesFailed);
 170     }
 171 }
 172 } //namespace WidgetUninstall
 173 } //namespace Jobs