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package com.sun.jaspic.config.jaas;
import com.sun.jaspic.config.helper.JASPICLogManager;
import com.sun.security.auth.login.ConfigFile;
import java.lang.reflect.Field;
import java.net.URI;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.HashMap;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.security.auth.login.AppConfigurationEntry;
/**
*
* @author Ron Monzillo
*/
public class ExtendedConfigFile extends ConfigFile {
private static final Logger logger =
Logger.getLogger(JASPICLogManager.JASPIC_LOGGER, JASPICLogManager.RES_BUNDLE);
//may be more than one delegate for a given jaas config file
public ExtendedConfigFile() {
}
/**
*
* @param uri
*/
public ExtendedConfigFile(URI uri) {
super(uri);
}
/**
* The ExtendedConfigFile subclass was created because the
* Configuration interface does not provide a way to do what this
* method does; i.e. get all the app names from the config.
* @param authModuleClass an Array of Class objects or null. When this
* parameter is not null, the appnames are filtered by removing all names
* that are not associated via an AppConfigurationEntry with at least
* one LoginModule that implements an authModuleClass.
* @return String[] containing all the AppNames appearing in the config file.
* @throws SecurityException
*/
public String[] getAppNames(final Class[] authModuleClass) {
final Set<String> nameSet;
try {
nameSet = (Set<String>) AccessController.doPrivileged(
new PrivilegedExceptionAction() {
@Override
public Object run() throws Exception {
HashMap map;
Field field = ConfigFile.class.getDeclaredField("configuration");
field.setAccessible(true);
map = (HashMap) field.get(ExtendedConfigFile.this);
return (Set<String>) map.keySet();
}
});
} catch (PrivilegedActionException pae) {
throw new SecurityException(pae.getCause());
}
// remove any modules that don't implement specified interface
if (authModuleClass != null) {
try {
AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public Object run() throws Exception {
ClassLoader loader =
Thread.currentThread().getContextClassLoader();
String[] names = nameSet.toArray(new String[nameSet.size()]);
for (String id : names) {
boolean hasAuthModule = false;
AppConfigurationEntry[] entry = getAppConfigurationEntry(id);
for (int i = 0; i
< entry.length && !hasAuthModule; i++) {
String clazz = entry[i].getLoginModuleName();
try {
Class c = Class.forName(clazz, true, loader);
for (Class required : authModuleClass) {
if (required.isAssignableFrom(c)) {
hasAuthModule = true;
break;
}
}
} catch (Throwable t) {
String msg = "skipping unloadable class: "
+ clazz + " of entry: " + id;
logger.log(Level.WARNING, msg);
}
}
if (!hasAuthModule) {
nameSet.remove(id);
}
}
return null;
}
});
} catch (java.security.PrivilegedActionException pae) {
throw new SecurityException(pae.getCause());
}
}
return nameSet.toArray(new String[nameSet.size()]);
}
}