2 * Copyright (C) 2016 - 2022 Free Software Foundation
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Affero General Public License as
6 * published by the Free Software Foundation, either version 3 of the
7 * License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Affero General Public License for more details.
14 * You should have received a copy of the GNU Affero General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 package org.mxchange.pizzaapplication.validator.emailaddress;
19 import java.text.MessageFormat;
20 import java.util.regex.Pattern;
21 import javax.faces.application.FacesMessage;
22 import javax.faces.component.UIComponent;
23 import javax.faces.context.FacesContext;
24 import javax.faces.validator.FacesValidator;
25 import javax.faces.validator.ValidatorException;
26 import javax.naming.Context;
27 import javax.naming.InitialContext;
28 import javax.naming.NamingException;
29 import org.mxchange.jcontacts.model.contact.ContactSessionBeanRemote;
30 import org.mxchange.jcoreee.validator.string.BaseStringValidator;
33 * A validator for email address validation
35 * @author Roland Häder<roland@mxchange.org>
37 @FacesValidator ("EmailAddressValidator")
38 public class PizzaEmailAddressValidator extends BaseStringValidator {
41 * Contact session-scoped bean
43 private static ContactSessionBeanRemote CONTACT_BEAN;
48 private static final String EMAIL_REGEX = "^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$"; //NOI18N
53 private static final Pattern PATTERN_MATCHER = Pattern.compile(PizzaEmailAddressValidator.EMAIL_REGEX);
58 private static final long serialVersionUID = 187_536_745_607_192L;
61 public void validate (final FacesContext context, final UIComponent component, final Object value) throws ValidatorException {
62 // Is the instance there?
63 if (CONTACT_BEAN == null) {
65 // Not yet, attempt lookup
66 final Context initial = new InitialContext();
69 CONTACT_BEAN = (ContactSessionBeanRemote) initial.lookup("java:global/pizzaservice-ejb/contact!org.mxchange.jcontacts.model.contact.ContactSessionBeanRemote");
70 } catch (final NamingException ex) {
72 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_ERROR, "Cannot lookup EJB", ex.getMessage()), ex);
77 final String[] requiredFields = {"emailAddress", "emailAddressRepeat", "resendEmailAddress"}; //NOI18N
79 // Default is to reject empty email address fields
80 Boolean allowEmptyValue = Boolean.FALSE;
82 // Is attribute "allowEmptyValue" set?
83 if (component.getAttributes().containsKey("allowEmptyValue")) { //NOI18N
85 final Object attribute = component.getAttributes().get("allowEmptyValue"); //NOI18N
87 // Make sure, it is Boolean as no String is accepted anymore
88 if (!(attribute instanceof String)) {
89 // Not valid attribute, please use "true" or "false" (default)
90 throw new IllegalArgumentException("allowEmptyValue must be of type String. Please use \"true\" or \"false\" for f:attribute value."); //NOI18N
94 allowEmptyValue = Boolean.parseBoolean((String) attribute);
97 // Pre-validation (example: not null, not a string, empty string ...)
98 super.preValidate(context, component, value, requiredFields, allowEmptyValue);
100 // Is the email address empty and allowed?
101 if (null == value && allowEmptyValue) {
102 // Then accept this here
104 } else if (null == value) {
106 throw new ValidatorException(new FacesMessage("No empty email address allowed.")); //NOI18N
109 // Get string from object ... ;-)
110 // @TODO Add IDN support (GNU lib?) Search for emailAddressRepeat
111 final String emailAddress = String.valueOf(value).trim();
113 // Checks if the email address matches a regex ("low-level" check)
114 // @TODO Should also be done by <f:validatorRegex />)
115 final boolean matches = PATTERN_MATCHER.matcher(emailAddress).matches(); //NOI18N
117 // Is the email address valid?
120 String message = MessageFormat.format("Email address {0} does not match regular expression.", emailAddress); //NOI18N
123 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_WARN, message, message));
126 // Get client id (aka form id)
127 final String clientId = component.getClientId();
130 final Boolean isRegistered = CONTACT_BEAN.isEmailAddressRegistered(emailAddress);
132 // Is the email address already registered?
133 if ((!clientId.endsWith("resendEmailAddress")) && (isRegistered)) { //NOI18N
135 final String message = MessageFormat.format("Email address {0} is already registered.", emailAddress); //NOI18N
137 // No, then abort here
138 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_INFO, message, message));
139 } else if ((clientId.endsWith("resendEmailAddress")) && (!isRegistered)) { //NOI18N
141 final String message = MessageFormat.format("Email address {0} is not registered.", emailAddress); //NOI18N
143 // No, then abort here
144 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_INFO, message, message));