1 /* 2 * Copyright (c) 2002-2021, City of Paris 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice 10 * and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice 13 * and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its 17 * contributors may be used to endorse or promote products derived from 18 * this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 * License 1.0 33 */ 34 package fr.paris.lutece.plugins.extend.modules.comment.util.validator; 35 36 import fr.paris.lutece.plugins.extend.modules.comment.util.annotation.Email; 37 38 import org.apache.commons.lang3.StringUtils; 39 40 import java.util.regex.Matcher; 41 import java.util.regex.Pattern; 42 43 import javax.validation.ConstraintValidator; 44 import javax.validation.ConstraintValidatorContext; 45 46 /** 47 * Check if a string match to an email 48 */ 49 public class EmailValidator implements ConstraintValidator<Email, String> 50 { 51 private static final String ATOM = "[a-z0-9!#$%&'*+/=?^_`{|}~-]"; 52 private static final String DOMAIN = "(" + ATOM + "+(\\." + ATOM + "+)*"; 53 private static final String IP_DOMAIN = "\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\]"; 54 private Pattern _pattern = Pattern.compile( "^" + ATOM + "+(\\." + ATOM + "+)*@" + DOMAIN + "|" + IP_DOMAIN + ")$", Pattern.CASE_INSENSITIVE ); 55 56 /** 57 * {@inheritDoc} 58 */ 59 @Override 60 public void initialize( Email constraintAnnotation ) 61 { 62 } 63 64 /** 65 * {@inheritDoc} 66 */ 67 @Override 68 public boolean isValid( String strEmail, ConstraintValidatorContext context ) 69 { 70 boolean valid = true; 71 72 if ( StringUtils.isNotEmpty( strEmail ) ) 73 { 74 Matcher m = _pattern.matcher( strEmail.trim( ) ); 75 76 if ( !m.matches( ) ) 77 { 78 valid = false; 79 } 80 } 81 82 return valid; 83 } 84 }