/*
 *    Copyright (C) 2014 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.
 */

#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kAccessControl

#include "mongo/platform/basic.h"

#include "mongo/db/auth/internal_user_auth.h"

#include "mongo/bson/mutable/document.h"
#include "mongo/bson/mutable/element.h"
#include "mongo/util/log.h"

namespace mongo {
namespace mmb = mongo::mutablebson;

// not guarded by the authParams mutex never changed in
// multi-threaded operation
static bool authParamsSet = false;

// Store default authentication parameters for internal authentication to cluster members,
// guarded by the authParams mutex
static BSONObj authParams;

static stdx::mutex authParamMutex;

bool isInternalAuthSet() {
    return authParamsSet;
}

void setInternalUserAuthParams(const BSONObj& authParamsIn) {
    if (!isInternalAuthSet()) {
        authParamsSet = true;
    }
    stdx::lock_guard<stdx::mutex> lk(authParamMutex);

    authParams = authParamsIn.copy();
}

BSONObj getInternalUserAuthParams() {
    if (!authParamsSet) {
        return BSONObj();
    }

    stdx::lock_guard<stdx::mutex> lk(authParamMutex);
    return authParams.copy();
}

}  // namespace mongo