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/*============LICENSE_START=======================================================
 * aaf-certservice-client
 * ================================================================================
 * Copyright (C) 2020 Nokia. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.onap.aaf.certservice.client.certification.conversion;

import org.apache.commons.lang3.RandomStringUtils;

import java.security.SecureRandom;

class RandomPasswordGenerator {

    private static final String ALPHA = "abcdefghijklmnopqrstuvwxyz";
    private static final String NUMBERS = "0123456789";
    private static final String SPECIAL_CHARS = "_$#";
    private static final char[] SET_OF_CHARS = (ALPHA + ALPHA.toUpperCase() + NUMBERS + SPECIAL_CHARS).toCharArray();
    private static final char START_POSITION_IN_ASCII_CHARS = 0;
    private static final char END_POSITION_IN_ASCII_CHARS = 0;
    private static final boolean USE_LETTERS_ONLY = false;
    private static final boolean USE_NUMBERS_ONLY = false;

    // We are excluding this line in Sonar due to fact that
    //we are using new SecureRandom which provides
    //cryptographic security
    Password generate(int passwordLength) {
        return new Password(RandomStringUtils.random(//NOSONAR
                passwordLength,
                START_POSITION_IN_ASCII_CHARS,
                END_POSITION_IN_ASCII_CHARS,
                USE_LETTERS_ONLY,
                USE_NUMBERS_ONLY,
                SET_OF_CHARS,
                new SecureRandom())
        );
    }
}