src/jobs/widget_install/task_ace_check.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_ace_check.cpp
  18  * @author  Pawel Sikorski (p.sikorski@samsung.com)
  19  * @version 1.0
  20  * @brief   Implementation file for installer task ace check
  21  */
  22
  23 #include <utility>
  24 #include <vector>
  25 #include <string>
  26
  27 #include <widget_install/task_ace_check.h>
  28 #include <dpl/assert.h>
  29 #include <dpl/log/log.h>
  30 #include <dpl/foreach.h>
  31
  32 #include <widget_install/widget_install_context.h>
  33 #include <widget_install/widget_install_errors.h>
  34 #include <widget_install/job_widget_install.h>
  35
  36 #include <dpl/wrt-dao-rw/widget_dao.h>
  37 #include <ace_api_install.h>
  38
  39 namespace Jobs {
  40 namespace WidgetInstall {
  41 TaskAceCheck::TaskAceCheck(InstallerContext& context) :
  42     DPL::TaskDecl<TaskAceCheck>(this),
  43     m_context(context)
  44 {
  45     AddStep(&TaskAceCheck::StepPrepareForAce);
  46     AddStep(&TaskAceCheck::StepAceCheck);
  47     AddStep(&TaskAceCheck::StepProcessAceResponse);
  48     AddStep(&TaskAceCheck::StepCheckAceResponse);
  49 }
  50
  51 void TaskAceCheck::StepPrepareForAce()
  52 {
  53     m_context.featureLogic =
  54         FeatureLogicPtr(new FeatureLogic(m_context.widgetConfig.tzAppid));
  55     m_context.job->UpdateProgress(
  56         InstallerContext::INSTALL_ACE_PREPARE,
  57         "Widget Access Control Check Prepared");
  58 }
  59
  60 void TaskAceCheck::StepAceCheck()
  61 {
  62     WrtDB::WidgetDAO dao(m_context.widgetConfig.tzAppid);
  63     LogInfo("StepAceCheck!");
  64     // This widget does not use any device cap
  65     if (m_context.featureLogic->isDone()) {
  66         return;
  67     }
  68
  69     LogInfo("StepAceCheck!");
  70     DPL::String deviceCap = m_context.featureLogic->getDevice();
  71
  72     LogInfo("StepAceCheck!");
  73     LogInfo("DevCap is : " << deviceCap);
  74
  75     std::string devCapStr = DPL::ToUTF8String(deviceCap);
  76     ace_policy_result_t policyResult = ACE_DENY;
  77
  78     //TODO: remove dao.getHandle()
  79     if (m_context.job->getInstallerStruct().m_installMode
  80             == InstallMode::INSTALL_MODE_PRELOAD)
  81     {
  82         LogDebug("This widget is prealoaded. So ace check will be skiped");
  83         policyResult = ACE_PERMIT;
  84     } else {
  85         ace_return_t ret = ace_get_policy_result(
  86                 const_cast<const ace_resource_t>(devCapStr.c_str()),
  87                 dao.getHandle(),
  88                 &policyResult);
  89         if (ACE_OK != ret) {
  90             ThrowMsg(Exceptions::AceCheckFailed, "Instalation failure. "
  91                     "ACE check failure");
  92         }
  93     }
  94
  95     LogInfo("PolicyResult is : " << static_cast<int>(policyResult));
  96     m_context.staticPermittedDevCaps.insert(std::make_pair(deviceCap,
  97                                                            policyResult ==
  98                                                            ACE_PERMIT));
  99
 100     m_context.featureLogic->setAceResponse(policyResult != ACE_DENY);
 101 }
 102
 103 void TaskAceCheck::StepProcessAceResponse()
 104 {
 105     WrtDB::WidgetDAO dao(m_context.widgetConfig.tzAppid);
 106     if (m_context.widgetConfig.packagingType ==
 107         WrtDB::PKG_TYPE_HOSTED_WEB_APP)
 108     {
 109         return;
 110     }
 111
 112     LogInfo("StepProcessAceResponse");
 113     m_context.featureLogic->next();
 114
 115     // No device caps left to process
 116     if (m_context.featureLogic->isDone()) {
 117         LogInfo("All responses has been received from ACE.");
 118         // Data to convert to C API
 119         std::vector<std::string> devCaps;
 120         std::vector<bool> devCapsSmack;
 121         // Saving static dev cap permissions
 122         FOREACH(cap, m_context.staticPermittedDevCaps) {
 123             LogInfo("staticPermittedDevCaps : " << cap->first
 124                                                 << " smack: " << cap->second);
 125             std::string devCapStr = DPL::ToUTF8String(cap->first);
 126             devCaps.push_back(devCapStr);
 127             devCapsSmack.push_back(cap->second);
 128         }
 129         ace_requested_dev_cap_list_t list;
 130         list.count = devCaps.size();
 131         list.items = new ace_requested_dev_cap_t[list.count];
 132
 133         for (unsigned int i = 0; i < devCaps.size(); ++i) {
 134             list.items[i].device_capability =
 135                 const_cast<const ace_resource_t>(devCaps[i].c_str());
 136             list.items[i].smack_granted =
 137                 devCapsSmack[i] ? ACE_TRUE : ACE_FALSE;
 138         }
 139         //TODO: remove dao.getHandle()
 140         ace_return_t ret = ace_set_requested_dev_caps(dao.getHandle(),
 141                                                       &list);
 142         if (ACE_OK != ret) {
 143             ThrowMsg(Exceptions::AceCheckFailed, "Instalation failure. "
 144                                              "ACE failure");
 145         }
 146         delete[] list.items;
 147
 148         std::set<std::string> acceptedFeature;
 149         auto it = m_context.featureLogic->resultBegin();
 150         for (; it != m_context.featureLogic->resultEnd(); ++it) {
 151             if (!(it->rejected)) {
 152                 acceptedFeature.insert(DPL::ToUTF8String(it->name));
 153             }
 154         }
 155         ace_feature_list_t featureList;
 156         featureList.count = acceptedFeature.size();
 157         featureList.items = new ace_string_t[featureList.count];
 158
 159         size_t i = 0;
 160         for (std::set<std::string>::const_iterator iter = acceptedFeature.begin();
 161              iter != acceptedFeature.end(); ++iter)
 162         {
 163             LogDebug("Accepted feature item: " << iter->c_str());
 164             featureList.items[i] = const_cast<char *>(iter->c_str());
 165             i++;
 166         }
 167
 168         //TODO: remove dao.getHandle()
 169         ret = ace_set_accepted_feature(dao.getHandle(), &featureList);
 170
 171         delete[] featureList.items;
 172
 173         if (ACE_OK != ret) {
 174             LogError("Error in ace_set_feature");
 175             ThrowMsg(Exceptions::AceCheckFailed, "Instalation failure. "
 176                                              "ace_set_feature failure.");
 177         }
 178         return;
 179     }
 180
 181     LogInfo("Next device cap.");
 182     // Process next device cap
 183     SwitchToStep(&TaskAceCheck::StepAceCheck);
 184 }
 185
 186 void TaskAceCheck::StepCheckAceResponse()
 187 {
 188     LogInfo("Checking ACE response");
 189     if (m_context.featureLogic->isRejected()) {
 190         LogError("Installation failure. Some devCap was not accepted by ACE.");
 191         ThrowMsg(
 192             Exceptions::PrivilegeLevelViolation,
 193             "Instalation failure. "
 194             "Some deviceCap was not accepted by ACE.");
 195     }
 196     LogInfo("Updating \"feature reject status\" in database!");
 197     auto it = m_context.featureLogic->resultBegin();
 198     auto end = m_context.featureLogic->resultEnd();
 199     for (; it != end; ++it) {
 200         LogInfo(
 201             "  |-  Feature: " << it->name << " has reject status: " <<
 202             it->rejected);
 203         if (it->rejected) {
 204             WrtDB::WidgetDAO dao(m_context.widgetConfig.tzAppid);
 205             dao.updateFeatureRejectStatus(*it);
 206         }
 207     }
 208     LogInfo("Installation continues...");
 209
 210     m_context.job->UpdateProgress(
 211         InstallerContext::INSTALL_ACE_CHECK,
 212         "Widget Access Control Check Finished");
 213 }
 214 } //namespace WidgetInstall
 215 } //namespace Jobs