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/*
* 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.
*/
public class URLPattern {
// In Ascii table, New Line (NL) decimal value is 10
private final static int NL = 10;
// In Ascii table, Carriage Return (CR) decimal value is 13
private final static int CR = 13;
/**
* This method is used to check the validity of url pattern
* according to the spec. It is used in the following places:
*
* 1. in WebResourceCollection
* 2. in ServletMapping
* 3. in ServletFilterMapping
* (above three see Servlet Spec, from version 2.3 on,
* Secion 13.2: "Rules for Processing the Deployment Descriptor")
*
* 4. in jsp-property-group
* (see JSP.3.3: "JSP Property Groups")
*
* @param urlPattern the url pattern
* @return false for invalid url pattern
*/
public static boolean isValid(String urlPattern) {
// URL Pattern should not contain New Line (NL) or
// Carriage Return (CR)
if (urlPattern.indexOf(NL) != -1 || urlPattern.indexOf (CR) != -1) {
return false;
}
// Check validity for extension mapping
if (urlPattern.startsWith("*.")) {
if (urlPattern.indexOf('/') < 0) {
return true;
} else {
return false;
}
}
// check validity for path mapping
if ( urlPattern.startsWith("/") && urlPattern.indexOf("*.") < 0) {
return true;
} else {
return false;
}
}
}
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