org.apache.usergrid.security.PasswordPolicyImpl.java Source code

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Here is the source code for org.apache.usergrid.security.PasswordPolicyImpl.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

package org.apache.usergrid.security;

import com.google.inject.Inject;
import org.apache.commons.lang3.StringUtils;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

public class PasswordPolicyImpl implements PasswordPolicy {

    private final PasswordPolicyFig passwordPolicyFig;

    @Inject
    PasswordPolicyImpl(PasswordPolicyFig passwordPolicyFig) {
        this.passwordPolicyFig = passwordPolicyFig;
    }

    @Override
    public String getDescription(boolean isAdminUser) {

        final int minLength;
        final int minUppercase;
        final int minDigits;
        final int minSpecialChars;

        if (isAdminUser) {
            minLength = passwordPolicyFig.getMinLengthAdmin();
            minUppercase = passwordPolicyFig.getMinUppercaseAdmin();
            minDigits = passwordPolicyFig.getMinDigitsAdmin();
            minSpecialChars = passwordPolicyFig.getMinSpecialCharsAdmin();
        } else {
            minLength = passwordPolicyFig.getMinLength();
            minUppercase = passwordPolicyFig.getMinUppercase();
            minDigits = passwordPolicyFig.getMinDigits();
            minSpecialChars = passwordPolicyFig.getMinSpecialChars();
        }

        StringBuilder sb = new StringBuilder();
        sb.append("Password must be at least ").append(minLength).append(" characters. ");
        if (minUppercase > 0) {
            sb.append("Must include ").append(minUppercase).append(" uppercase characters. ");
        }
        if (minDigits > 0) {
            sb.append("Must include ").append(minDigits).append(" numbers. ");
        }
        if (minSpecialChars > 0) {
            sb.append("Must include ").append(minUppercase).append(" special characters. ");
        }
        return sb.toString();
    }

    @Override
    public Collection<String> policyCheck(String password, boolean isAdminUser) {

        final int minLength;
        final int minUppercase;
        final int minDigits;
        final int minSpecialChars;

        if (isAdminUser) {
            minLength = passwordPolicyFig.getMinLengthAdmin();
            minUppercase = passwordPolicyFig.getMinUppercaseAdmin();
            minDigits = passwordPolicyFig.getMinDigitsAdmin();
            minSpecialChars = passwordPolicyFig.getMinSpecialCharsAdmin();
        } else {
            minLength = passwordPolicyFig.getMinLength();
            minUppercase = passwordPolicyFig.getMinUppercase();
            minDigits = passwordPolicyFig.getMinDigits();
            minSpecialChars = passwordPolicyFig.getMinSpecialChars();
        }

        return policyCheck(password, minLength, minUppercase, minDigits, minSpecialChars);
    }

    public Collection<String> policyCheck(String password, int minLength, int minUppercase, int minDigits,
            int minSpecialChars) {

        List<String> violations = new ArrayList<>(3);

        // check length
        if (password == null || password.length() < minLength) {
            violations.add(PasswordPolicy.ERROR_LENGTH_POLICY + ": must be at least " + minLength + " characters");
        }

        // count upper case
        if (minUppercase > 0) {
            int upperCaseCount = 0;
            for (char c : password.toCharArray()) {
                if (StringUtils.isAllUpperCase(String.valueOf(c))) {
                    upperCaseCount++;
                }
            }
            if (upperCaseCount < minUppercase) {
                violations.add(PasswordPolicy.ERROR_UPPERCASE_POLICY + ": requires " + minUppercase
                        + " uppercase characters");
            }
        }

        // count digits case
        if (minDigits > 0) {
            int digitCount = 0;
            for (char c : password.toCharArray()) {
                if (StringUtils.isNumeric(String.valueOf(c))) {
                    digitCount++;
                }
            }
            if (digitCount < minDigits) {
                violations.add(PasswordPolicy.ERROR_DIGITS_POLICY + ": requires " + minDigits + " digits");
            }
        }

        // count special characters
        if (minSpecialChars > 0) {
            int specialCharCount = 0;
            for (char c : password.toCharArray()) {
                if (passwordPolicyFig.getAllowedSpecialChars().contains(String.valueOf(c))) {
                    specialCharCount++;
                }
            }
            if (specialCharCount < minSpecialChars) {
                violations.add(PasswordPolicy.ERROR_SPECIAL_CHARS_POLICY + ": requires " + minSpecialChars
                        + " special characters");
            }
        }

        return violations;
    }

}