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/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/auth/impersonation_session.h"
#include <boost/optional.hpp>
#include <tuple>
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/auth/privilege.h"
#include "mongo/db/auth/resource_pattern.h"
#include "mongo/db/client.h"
#include "mongo/db/operation_context.h"
#include "mongo/rpc/metadata/audit_metadata.h"
#include "mongo/util/assert_util.h"
namespace mongo {
ImpersonationSessionGuard::ImpersonationSessionGuard(OperationContext* txn) : _txn(txn) {
auto authSession = AuthorizationSession::get(_txn->getClient());
const auto& impersonatedUsersAndRoles =
rpc::AuditMetadata::get(txn).getImpersonatedUsersAndRoles();
if (impersonatedUsersAndRoles != boost::none) {
uassert(ErrorCodes::Unauthorized,
"Unauthorized use of impersonation metadata.",
authSession->isAuthorizedForPrivilege(
Privilege(ResourcePattern::forClusterResource(), ActionType::impersonate)));
fassert(ErrorCodes::InternalError, !authSession->isImpersonating());
authSession->setImpersonatedUserData(std::get<0>(*impersonatedUsersAndRoles),
std::get<1>(*impersonatedUsersAndRoles));
_active = true;
}
}
ImpersonationSessionGuard::~ImpersonationSessionGuard() {
DESTRUCTOR_GUARD(
if (_active) { AuthorizationSession::get(_txn->getClient())->clearImpersonatedUserData(); })
}
} // namespace mongo
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