org.apache.catalina.security.SecurityConfig Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.catalina.security;
import java.security.Security;
import org.apache.catalina.startup.CatalinaProperties;
/**
* Util class to protect Catalina against package access and insertion.
* The code are been moved from Catalina.java
* @author the Catalina.java authors
* @author Jean-Francois Arcand
*/
public final class SecurityConfig{
private static SecurityConfig singleton = null;
private static final org.apache.juli.logging.Log log=
org.apache.juli.logging.LogFactory.getLog( SecurityConfig.class );
private static final String PACKAGE_ACCESS = "sun.,"
+ "org.apache.catalina."
+ ",org.apache.jasper."
+ ",org.apache.coyote."
+ ",org.apache.tomcat.";
private static final String PACKAGE_DEFINITION= "java.,sun."
+ ",org.apache.catalina."
+ ",org.apache.coyote."
+ ",org.apache.tomcat."
+ ",org.apache.jasper.";
/**
* List of protected package from conf/catalina.properties
*/
private String packageDefinition;
/**
* List of protected package from conf/catalina.properties
*/
private String packageAccess;
/**
* Create a single instance of this class.
*/
private SecurityConfig(){
try{
packageDefinition = CatalinaProperties.getProperty("package.definition");
packageAccess = CatalinaProperties.getProperty("package.access");
} catch (java.lang.Exception ex){
if (log.isDebugEnabled()){
log.debug("Unable to load properties using CatalinaProperties", ex);
}
}
}
/**
* Returns the singleton instance of that class.
* @return an instance of that class.
*/
public static SecurityConfig newInstance(){
if (singleton == null){
singleton = new SecurityConfig();
}
return singleton;
}
/**
* Set the security package.access value.
*/
public void setPackageAccess(){
// If catalina.properties is missing, protect all by default.
if (packageAccess == null){
setSecurityProperty("package.access", PACKAGE_ACCESS);
} else {
setSecurityProperty("package.access", packageAccess);
}
}
/**
* Set the security package.definition value.
*/
public void setPackageDefinition(){
// If catalina.properties is missing, protect all by default.
if (packageDefinition == null){
setSecurityProperty("package.definition", PACKAGE_DEFINITION);
} else {
setSecurityProperty("package.definition", packageDefinition);
}
}
/**
* Set the proper security property
* @param properties the package.* property.
*/
private final void setSecurityProperty(String properties, String packageList){
if (System.getSecurityManager() != null){
String definition = Security.getProperty(properties);
if( definition != null && definition.length() > 0 ){
definition += ",";
}
Security.setProperty(properties,
// FIX ME package "javax." was removed to prevent HotSpot
// fatal internal errors
definition + packageList);
}
}
}