2 * Copyright (C) 2016, 2017 Roland Häder
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.Validator;
26 import javax.faces.validator.ValidatorException;
27 import javax.naming.Context;
28 import javax.naming.InitialContext;
29 import javax.naming.NamingException;
30 import org.mxchange.jcontacts.contact.ContactSessionBeanRemote;
31 import org.mxchange.jcoreee.validator.string.BaseStringValidator;
34 * A validator for email address validation
36 * @author Roland Häder<roland@mxchange.org>
38 @FacesValidator ("EmailAddressValidator")
39 public class PizzaEmailAddressValidator extends BaseStringValidator implements Validator {
42 * Contact session-scoped bean
44 private static ContactSessionBeanRemote CONTACT_BEAN;
49 private static final Pattern EMAIL_PATTERN = Pattern.compile(PizzaEmailAddressValidator.EMAIL_REGEX);
54 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
59 private static final long serialVersionUID = 187_536_745_607_192L;
64 public PizzaEmailAddressValidator () {
68 public void validate (final FacesContext context, final UIComponent component, final Object value) throws ValidatorException {
69 System.out.println("validate: value=" + value); //NOI18N
71 String[] requiredFields = {"emailAddress", "emailAddressRepeat", "resendEmailAddress"}; //NOI18N
73 // Default is to reject empty email address fields
74 Boolean allowEmptyEmail = Boolean.FALSE;
76 // Is attribute "allowEmptyEmail" set?
77 if (component.getAttributes().containsKey("allowEmptyEmail")) { //NOI18N
79 Object attribute = component.getAttributes().get("allowEmptyEmail"); //NOI18N
80 System.out.println("attribute=" + attribute); //NOI18N
82 // Make sure, it is Boolean as no String is accepted anymore
83 if (!(attribute instanceof String)) {
84 // Not valid attribute, please use "true" or "false" (default)
85 throw new IllegalArgumentException("allowEmptyEmail must be of type String. Please use \"true\" or \"false\" for f:attribute value."); //NOI18N
89 allowEmptyEmail = Boolean.parseBoolean((String) attribute);
92 // Pre-validation (example: not null, not a string, empty string ...)
93 super.preValidate(context, component, value, requiredFields, allowEmptyEmail);
95 // Is the email address empty and allowed?
96 if (null == value && allowEmptyEmail) {
97 // Then accept this here
99 } else if (null == value) {
101 throw new ValidatorException(new FacesMessage("No empty email address allowed.")); //NOI18N
104 // Get string from object ... ;-)
105 // @TODO Add IDN support (GNU lib?) Search for emailAddressRepeat
106 String emailAddress = String.valueOf(value).trim();
108 // Checks if the email address matches a regex ("low-level" check)
109 // @TODO Should also be done by <f:validatorRegex />)
110 boolean matches = EMAIL_PATTERN.matcher(emailAddress).matches(); //NOI18N
112 // Is the email address valid?
115 String message = MessageFormat.format("Email address {0} does not match regular expression.", emailAddress); //NOI18N
118 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_ERROR, message, message));
121 // Is the bean not yet set?
122 // @TODO Requires this synchronization or is it (sync) confusing the container?
123 if (null == PizzaEmailAddressValidator.CONTACT_BEAN) {
126 // Get initial context
127 Context initialContext = new InitialContext();
130 PizzaEmailAddressValidator.CONTACT_BEAN = (ContactSessionBeanRemote) initialContext.lookup("java:global/pizzaapplication-ejb/contact!org.mxchange.jcontacts.contact.ContactSessionBeanRemote"); //NOI18N
131 } catch (final NamingException ex) {
132 // Continue to throw it
133 throw new ValidatorException(new FacesMessage(MessageFormat.format("initialContext.lookup() failed: {0}", ex.getMessage())), ex); //NOI18N
137 // Get client id (aka form id)
138 String clientId = component.getClientId();
141 Boolean isRegistered = PizzaEmailAddressValidator.CONTACT_BEAN.isEmailAddressRegistered(emailAddress);
143 // Is the email address already registered?
144 if ((!clientId.endsWith("resendEmailAddress")) && (isRegistered)) { //NOI18N
146 String message = MessageFormat.format("Email address {0} is already registered.", emailAddress); //NOI18N
148 // No, then abort here
149 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_INFO, message, message));
150 } else if ((clientId.endsWith("resendEmailAddress")) && (!isRegistered)) { //NOI18N
152 String message = MessageFormat.format("Email address {0} is not registered.", emailAddress); //NOI18N
154 // No, then abort here
155 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_INFO, message, message));