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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 com.sun.org.apache.commons.logging.Log log=
com.sun.org.apache.commons.logging.LogFactory.getLog( SecurityConfig.class );
private final static String PACKAGE_ACCESS = "sun.,"
+ "org.apache.catalina."
+ ",org.apache.jasper."
+ ",org.apache.coyote."
+ ",org.apache.tomcat.";
private final static 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);
}
}
}
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