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/**
* Copyright (C) 2012 10gen 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/db/auth/authz_session_external_state_server_common.h"
#include "mongo/base/status.h"
#include "mongo/db/auth/authorization_manager.h"
#include "mongo/db/client.h"
#include "mongo/db/server_parameters.h"
#include "mongo/util/debug_util.h"
namespace mongo {
namespace {
MONGO_EXPORT_STARTUP_SERVER_PARAMETER(enableLocalhostAuthBypass, bool, true);
} // namespace
// NOTE: we default _allowLocalhost to true under the assumption that _checkShouldAllowLocalhost
// will always be called before any calls to shouldIgnoreAuthChecks. If this is not the case,
// it could cause a security hole.
AuthzSessionExternalStateServerCommon::AuthzSessionExternalStateServerCommon(
AuthorizationManager* authzManager) :
AuthzSessionExternalState(authzManager),
_allowLocalhost(true) {}
AuthzSessionExternalStateServerCommon::~AuthzSessionExternalStateServerCommon() {}
void AuthzSessionExternalStateServerCommon::_checkShouldAllowLocalhost() {
if (!AuthorizationManager::isAuthEnabled())
return;
// If we know that an admin user exists, don't re-check.
if (!_allowLocalhost)
return;
// Don't bother checking if we're not on a localhost connection
if (!ClientBasic::getCurrent()->getIsLocalHostConnection()) {
_allowLocalhost = false;
return;
}
_allowLocalhost = !_authzManager->hasAnyPrivilegeDocuments();
if (_allowLocalhost) {
ONCE {
log() << "note: no users configured in admin.system.users, allowing localhost "
"access" << std::endl;
}
}
}
bool AuthzSessionExternalStateServerCommon::shouldIgnoreAuthChecks() const {
ClientBasic* client = ClientBasic::getCurrent();
return !AuthorizationManager::isAuthEnabled() ||
(enableLocalhostAuthBypass &&client->getIsLocalHostConnection() && _allowLocalhost);
}
} // namespace mongo
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