// // 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 com.cloud.utils; import java.util.regex.Matcher; import java.util.regex.Pattern; public class UsernamePasswordValidator { private Pattern usernamePattern; private Pattern passwordPattern; private Matcher matcher; private static final String USERNAME_PATTERN = "^[a-zA-Z0-9][a-zA-Z0-9@._-]{2,63}$"; private static final String PASSWORD_PATTERN = "^[a-zA-Z0-9][a-zA-Z0-9@#+=._-]{2,31}$"; public UsernamePasswordValidator() { usernamePattern = Pattern.compile(USERNAME_PATTERN); passwordPattern = Pattern.compile(PASSWORD_PATTERN); } public boolean validateUsername(final String username) { matcher = usernamePattern.matcher(username); return matcher.matches(); } public boolean validatePassword(final String password) { matcher = passwordPattern.matcher(password); return matcher.matches(); } }