com.sun.enterprise.util.net.URLPattern Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of payara-micro Show documentation
Show all versions of payara-micro Show documentation
Micro Distribution of the Payara Project
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. 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_1_1.html
* or packager/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 packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [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.enterprise.util.net;
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 (containsCRorLF(urlPattern)) {
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.isEmpty()) {
return true;
} else if (urlPattern.startsWith("/") &&
urlPattern.indexOf("*.") < 0) {
return true;
} else {
return false;
}
}
/**
* This method is used to check whether a url pattern contains a CR(#xD) or
* LF (#xA). According to the Servlet spec the developer must be informed
* when it does.
*
* @param urlPattern
* the url pattern (must not be null)
* @return true if it contains one or more CRs or LFs
*/
public static boolean containsCRorLF(String urlPattern) {
return (urlPattern.indexOf(NL) != -1 || urlPattern.indexOf (CR) != -1);
}
}