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/*
* security-manager, database access
*
* Copyright (c) 2000 - 2014 Samsung Electronics Co., Ltd All Rights Reserved
*
* Contact: Rafal Krypa <r.krypa@samsung.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/*
* @file privilege_db.cpp
* @author Krzysztof Sasiak <k.sasiak@samsung.com>
* @author Rafal Krypa <r.krypa@samsung.com>
* @version 0.1
* @brief This file contains declaration of the API to privileges database.
*/
#include <cstdio>
#include <list>
#include <string>
#include <iostream>
#include <dpl/log/log.h>
#include "privilege_db.h"
namespace SecurityManager {
/* Common code for handling SqlConnection exceptions */
template <typename T>
T try_catch(const std::function<T()> &func)
{
try {
return func();
} catch (DB::SqlConnection::Exception::SyntaxError &e) {
LogError("Syntax error in command: " << e.DumpToString());
ThrowMsg(PrivilegeDb::Exception::InternalError,
"Syntax error in command: " << e.DumpToString());
} catch (DB::SqlConnection::Exception::InternalError &e) {
LogError("Mysterious internal error in SqlConnection class" << e.DumpToString());
ThrowMsg(PrivilegeDb::Exception::InternalError,
"Mysterious internal error in SqlConnection class: " << e.DumpToString());
}
}
PrivilegeDb::PrivilegeDb(const std::string &path)
{
try {
mSqlConnection = new DB::SqlConnection(path,
DB::SqlConnection::Flag::None,
DB::SqlConnection::Flag::RW);
} catch (DB::SqlConnection::Exception::Base &e) {
LogError("Database initialization error: " << e.DumpToString());
ThrowMsg(PrivilegeDb::Exception::IOError,
"Database initialization error:" << e.DumpToString());
};
}
PrivilegeDb::~PrivilegeDb()
{
delete mSqlConnection;
}
void PrivilegeDb::BeginTransaction(void)
{
try_catch<void>([&] {
mSqlConnection->BeginTransaction();
});
}
void PrivilegeDb::CommitTransaction(void)
{
try_catch<void>([&] {
mSqlConnection->CommitTransaction();
});
}
void PrivilegeDb::RollbackTransaction(void)
{
try_catch<void>([&] {
mSqlConnection->RollbackTransaction();
});
}
bool PrivilegeDb::PkgIdExists(const std::string &pkgId)
{
return try_catch<bool>([&] {
DB::SqlConnection::DataCommandAutoPtr command =
mSqlConnection->PrepareDataCommand(
Queries.at(QueryType::EPkgIdExists));
command->BindString(1, pkgId.c_str());
if (command->Step()) {
LogPedantic("PkgId: " << pkgId << " found in database");
command->Reset();
return true;
};
return false;
});
}
bool PrivilegeDb::GetAppPkgId(const std::string &appId, std::string &pkgId)
{
return try_catch<bool>([&] {
DB::SqlConnection::DataCommandAutoPtr command =
mSqlConnection->PrepareDataCommand(Queries.at(QueryType::EGetPkgId));
command->BindString(1, appId.c_str());
if (!command->Step()) {
// No application with such appId
return false;
}
pkgId = command->GetColumnString(0);
return true;
});
}
void PrivilegeDb::AddApplication(const std::string &appId,
const std::string &pkgId, bool &pkgIdIsNew)
{
pkgIdIsNew = !(this->PkgIdExists(pkgId));
try_catch<void>([&] {
DB::SqlConnection::DataCommandAutoPtr command =
mSqlConnection->PrepareDataCommand(
Queries.at(QueryType::EAddApplication));
command->BindString(1, appId.c_str());
command->BindString(2, pkgId.c_str());
if (command->Step()) {
LogPedantic("Unexpected SQLITE_ROW answer to query: " <<
Queries.at(QueryType::EAddApplication));
};
command->Reset();
LogPedantic( "Added appId: " << appId << ", pkgId: " << pkgId);
});
}
void PrivilegeDb::RemoveApplication(const std::string &appId,
bool &pkgIdIsNoMore)
{
try_catch<void>([&] {
std::string pkgId;
if (!GetAppPkgId(appId, pkgId)) {
pkgIdIsNoMore = false;
return;
}
DB::SqlConnection::DataCommandAutoPtr command =
mSqlConnection->PrepareDataCommand(
Queries.at(QueryType::ERemoveApplication));
command->BindString(1, appId.c_str());
if (command->Step()) {
LogPedantic("Unexpected SQLITE_ROW answer to query: " <<
Queries.at(QueryType::ERemoveApplication));
};
command->Reset();
LogPedantic( "Removed appId: " << appId);
pkgIdIsNoMore = !(this->PkgIdExists(pkgId));
});
}
void PrivilegeDb::GetPkgPrivileges(const std::string &pkgId,
std::vector<std::string> ¤tPrivileges)
{
try_catch<void>([&] {
DB::SqlConnection::DataCommandAutoPtr command =
mSqlConnection->PrepareDataCommand(
Queries.at(QueryType::EGetPkgPrivileges));
command->BindString(1, pkgId.c_str());
while (command->Step()) {
std::string privilege = command->GetColumnString(0);
LogPedantic ("Got privilege: "<< privilege);
currentPrivileges.push_back(privilege);
};
});
}
void PrivilegeDb::RemoveAppPrivileges(const std::string &appId)
{
try_catch<void>([&] {
DB::SqlConnection::DataCommandAutoPtr command =
mSqlConnection->PrepareDataCommand(Queries.at(QueryType::ERemoveAppPrivileges));
command->BindString(1, appId.c_str());
command->Step();
});
}
void PrivilegeDb::UpdateAppPrivileges(const std::string &appId,
const std::vector<std::string> &privileges)
{
try_catch<void>([&] {
DB::SqlConnection::DataCommandAutoPtr command =
mSqlConnection->PrepareDataCommand(Queries.at(QueryType::EAddAppPrivileges));
command->BindString(1, appId.c_str());
RemoveAppPrivileges(appId);
for (const auto &privilege : privileges) {
command->BindString(2, privilege.c_str());
command->Step();
command->Reset();
}
});
}
} //namespace SecurityManager
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