com.sun.faces.ext.validator.CreditCardValidator Maven / Gradle / Ivy
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This is the master POM file for Sun's Implementation of
the JSF 1.2 Specification.
The newest version!
/*
* $Id: CreditCardValidator.java,v 1.1.2.3 2008/12/15 19:30:22 rlubke Exp $
*/
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.faces.ext.validator;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
import javax.faces.context.FacesContext;
import javax.faces.component.UIComponent;
import javax.faces.application.FacesMessage;
import java.util.Locale;
import java.io.Serializable;
/**
* A Validator that checks against a Regular Expression (which is the pattern
* property). The pattern must resolve to a String that follows the java.util.regex
* standards.
* @author driscoll
*/
public class CreditCardValidator implements Validator, Serializable {
private static final long serialVersionUID = 3534760827770436010L;
/**
* Validate a String against a regular expression pattern... The full regex
* pattern must be matched in order to pass the validation.
* @param context Context of this request
* @param component The component wrapping this validator
* @param obj A string which will be compared to the pattern property of this validator. Must be a string.
*/
public void validate(FacesContext context, UIComponent component, Object obj) {
FacesMessage fmsg;
Locale locale = context.getViewRoot().getLocale();
if (obj == null) {
return;
}
if (!(obj instanceof String)) {
fmsg = MojarraMessageFactory.getMessage(locale,
"com.sun.faces.ext.validator.creditcardValidator.NOT_STRING",
(Object) null);
throw new ValidatorException(fmsg);
}
String input = (String) obj;
if (!input.matches("^[0-9\\ \\-]*$")) {
fmsg = MojarraMessageFactory.getMessage(locale,
"com.sun.faces.ext.validator.creditcardValidator.INVALID_CHARS",
(Object) null);
throw new ValidatorException(fmsg);
}
if (!luhnCheck(stripNonDigit(input))) {
fmsg = MojarraMessageFactory.getMessage(locale,
"com.sun.faces.ext.validator.creditcardValidator.INVALID_NUMBER",
(Object) null);
throw new ValidatorException(fmsg);
}
}
private String stripNonDigit(String s) {
return s.replaceAll(" ", "").replaceAll("-", "");
}
private boolean luhnCheck(String number) {
int sum = 0;
boolean timestwo = false;
for (int i = number.length() - 1; i >= 0; i--) {
int n = Integer.parseInt(number.substring(i, i + 1));
if (timestwo) {
n *= 2;
if (n > 9) {
n = (n % 10) + 1;
}
}
sum += n;
timestwo = !timestwo;
}
return sum % 10 == 0;
}
}