org.wildfly.security.auth.util.RegexNameValidatingRewriter Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wildfly.security.auth.util;
import java.util.regex.Pattern;
import org.wildfly.common.Assert;
import org.wildfly.security.auth.server.NameRewriter;
/**
* A regular expression-based name validation rewriter. Always returns the original name
* if the name is valid.
*
* @author David M. Lloyd
*/
public final class RegexNameValidatingRewriter implements NameRewriter {
private final Pattern pattern;
private final boolean match;
/**
* Construct a new instance. The pattern is a partial pattern; if the whole string is to be matched, then
* the appropriate regex anchors should be used.
*
* @param pattern the pattern that the name must match (or not match) in order to be considered valid (must not be {@code null})
* @param match {@code true} if the pattern must match, {@code false} if the pattern must not match
*/
public RegexNameValidatingRewriter(final Pattern pattern, final boolean match) {
this.pattern = Assert.checkNotNullParam("pattern", pattern);
this.match = match;
}
public String rewriteName(final String original) {
if (original == null) return null;
return pattern.matcher(original).find() != match ? null : original;
}
/**
* Get the pattern.
*
* @return the pattern
*/
public Pattern getPattern() {
return pattern;
}
/**
* Get the match flag. If the flag is {@code true}, the pattern must match; if {@code false}, the pattern
* must not match.
*
* @return the match flag
*/
public boolean isMatch() {
return match;
}
}