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/*
* BaseAuditManager.java
*
* Created on July 28, 2003, 1:56 PM
*/
package com.sun.enterprise.security.audit;
import com.sun.enterprise.security.BaseAuditModule;
import com.sun.enterprise.security.SecurityLoggerInfo;
import com.sun.enterprise.config.serverbeans.AuditModule;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Map;
import java.util.HashMap;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.jvnet.hk2.config.types.Property;
import com.sun.enterprise.config.serverbeans.SecurityService;
/*V3:Commented
import com.sun.enterprise.config.serverbeans.ServerBeansFactory;
import com.sun.enterprise.config.serverbeans.ElementProperty;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.server.ApplicationServer;
*/
import org.glassfish.internal.api.ServerContext;
import com.sun.enterprise.util.LocalStringManagerImpl;
import java.util.List;
import org.glassfish.api.admin.ServerEnvironment;
import javax.inject.Inject;
import org.jvnet.hk2.annotations.Service;
import javax.inject.Singleton;
/**
* Basic implementation of audit manager.
*
* Projects layered on top of nucleus should extend this class, adding platform-specific
* methods for auditing platform-specific events. See AppServerAuditManagerImpl
* for an example. Such implementations should be sure to invoke this class's
* setTypeClass method. Then this class will keep a list of AuditModules of
* that specific type in the typedModules field which subclasses can refer
* to directly.
*
* (This implementation was largely refactored from the original
* BaseAuditManager implementation that combined nucleus and app server features.)
*
* @author Harpreet Singh
* @author Shing Wai Chan
* @author tjquinn
*/
@Service
@Singleton
public class BaseAuditManager implements AuditManager {
static final String NAME = "name";
static final String CLASSNAME = "classname";
// For speed, maintain a separate list of audit modules of the specified
// module subtype (if any). This allows subclasses to have very efficient
// access to the specified audit modules which the subclass audit manager
// deals with.
protected List typedModules = Collections.synchronizedList(new ArrayList());
private Class typedModuleClass = null; // typically set by postConstruct of a subclass invoking setTypeClass
private static final Logger _logger =
SecurityLoggerInfo.getLogger();
private static final LocalStringManagerImpl _localStrings =
new LocalStringManagerImpl(BaseAuditManager.class);
private List instances = Collections.synchronizedList(new ArrayList());
// just a copy of names of the audit classes - helpful for log messages
// since we will not have a lot of audit classes, keeping a duplicate copy
// seems reasonable.
private Map moduleToNameMap = new HashMap();
private Map nameToModuleMap = new HashMap();
// make this accessible to the containers so that the cost of non-audit case,
// is just a comparision.
protected boolean auditOn = false;
@Inject
private ServerContext serverContext;
private static final String AUDIT_MGR_SERVER_STARTUP_KEY =
"auditmgr.serverStartup";
private static final String AUDIT_MGR_SERVER_SHUTDOWN_KEY =
"auditmgr.serverShutdown";
/**
* This method initializes BaseAuditManager which load audit modules and
* audit enabled flag
*/
@Override
public void loadAuditModules() {
try {
SecurityService securityBean = serverContext.getDefaultServices().getService(SecurityService.class,
ServerEnvironment.DEFAULT_INSTANCE_NAME);
assert(securityBean != null);
// @todo will be removed to incorporate the new structure.
//v3:Commented boolean auditFlag = securityBean.isAuditEnabled();
boolean auditFlag = Boolean.parseBoolean(securityBean.getAuditEnabled());
setAuditOn(auditFlag);
/*V3:Commented
com.sun.enterprise.config.serverbeans.AuditModule[] am =
securityBean.getAuditModule();*/
List am = securityBean.getAuditModule();
for (com.sun.enterprise.config.serverbeans.AuditModule it: am) {
//V3:Commented for (int i = 0; i < am.length; i++){
try {
//V3:Commented String name = am[i].getName();
//V3:Commented String classname = am[i].getClassname();
String name = it.getName();
String classname = it.getClassname();
Properties p = new Properties();
//XXX should we remove this two extra properties
p.setProperty(NAME, name);
p.setProperty(CLASSNAME, classname);
List ep = it.getProperty();
/*V3:Commented
ElementProperty[] ep = am[i].getElementProperty();
int epsize = am[i].sizeElementProperty();
for (int j = 0; j < epsize; j++){
String nme = ep[j].getName();
String val = ep[j].getValue();
p.setProperty(nme, val);
}*/
for (Property prop: ep) {
p.setProperty(prop.getName(), prop.getValue());
}
BaseAuditModule auditModule = loadAuditModule(classname, p);
instances.add(auditModule);
moduleToNameMap.put(auditModule, name);
nameToModuleMap.put(name, auditModule);
if (isAuditModuleOfParameterizedType(auditModule)) {
typedModules.add((T)auditModule);
}
} catch(Exception ex){
String msg = _localStrings.getLocalString(
"auditmgr.loaderror",
"Audit: Cannot load AuditModule = {0}",
//V3:Commented new Object[]{ am[i].getName() });
new Object[]{ it.getName() });
_logger.log(Level.WARNING, msg, ex);
}
}
} catch (Exception e) {
String msg = _localStrings.getLocalString("auditmgr.badinit",
"Audit: Cannot load Audit Module Initialization information. AuditModules will not be loaded.");
_logger.log(Level.WARNING, msg, e);
}
}
/**
* Add the given audit module to the list of loaded audit module.
* Adding the same name twice will override previous one.
* @param name of auditModule
* @param am an instance of a class extending BaseAuditModule that has been
* successfully loaded into the system.
* @exception
*/
public BaseAuditModule addAuditModule(String name, String classname, Properties props)
throws Exception {
// make sure only a name corresponding to only one auditModule
removeAuditModule(name);
BaseAuditModule am = loadAuditModule(classname, props);
moduleToNameMap.put(am, name);
nameToModuleMap.put(name, am);
// clone list to resolve multi-thread issues in looping instances
instances = copyAndAdd(instances, am);
if (isAuditModuleOfParameterizedType(am)) {
typedModules = copyAndAdd(typedModules, (T)am);
}
return am;
}
private boolean isAuditModuleOfParameterizedType(final BaseAuditModule am) {
return (typedModuleClass != null && typedModuleClass.isAssignableFrom(am.getClass()));
}
private List copyAndAdd(final List orig, final U am) {
final List list = new ArrayList();
Collections.copy(orig, list);
list.add(am);
return list;
}
private List copyAndRemove(final List orig, final U am) {
final List list = new ArrayList();
Collections.copy(orig, list);
list.remove(am);
return list;
}
/**
* Remove the audit module of given name from the loaded list.
* @param name of auditModule
*/
public BaseAuditModule removeAuditModule(String name) {
final BaseAuditModule am = nameToModuleMap.get(name);
if (am != null) {
nameToModuleMap.remove(name);
moduleToNameMap.remove(am);
// clone list to resolve multi-thread issues in looping instances
instances = copyAndRemove(instances, am);
if (isAuditModuleOfParameterizedType(am)) {
typedModules = copyAndRemove(typedModules, (T)am);
}
}
return am;
}
/**
* Get the audit module of given name from the loaded list.
* @param name of auditModule
*/
BaseAuditModule getAuditModule(String name) {
return nameToModuleMap.get(name);
}
/**
* This method return auditModule with given classname and properties.
* @param classname
* @param props
* @exception
*/
private BaseAuditModule loadAuditModule(String classname,
Properties props) throws Exception {
BaseAuditModule auditModule;
ClassLoader loader = Thread.currentThread().getContextClassLoader();
Class am = Class.forName(classname, true, loader);
Object obj = am.newInstance();
auditModule = (BaseAuditModule) obj;
auditModule.init(props);
return auditModule;
}
public LocalStringManagerImpl getLocalStrings() {
return _localStrings;
}
public Logger getLogger() {
return _logger;
}
/**
* logs the authentication call for all the loaded modules.
* @see com.sun.appserv.security.BaseAuditModule.authentication
*/
public void authentication(final String user, final String realm, final boolean success){
if (auditOn) {
for (BaseAuditModule am : instances) {
try {
am.authentication(user, realm, success);
} catch (Exception ex) {
final String name = moduleName(am);
final String msg =
_localStrings.getLocalString(
"auditmgr.authentication",
" Audit Module {0} threw the following exception during authentication:",
name);
_logger.log(Level.INFO, msg, ex);
}
}
}
}
public void serverStarted(){
if (auditOn) {
for (BaseAuditModule am : instances) {
try {
am.serverStarted();
} catch (Exception ex) {
final String name = moduleName(am);
final String msg =
_localStrings.getLocalString(
AUDIT_MGR_SERVER_STARTUP_KEY,
" Audit Module {0} threw the following exception during server startup :",
name);
_logger.log(Level.INFO, msg, ex);
}
}
}
}
public void serverShutdown(){
if (auditOn) {
for (BaseAuditModule am : instances) {
try {
am.serverShutdown();
} catch (Exception ex) {
final String name = moduleName(am);
final String msg =
_localStrings.getLocalString(
AUDIT_MGR_SERVER_SHUTDOWN_KEY,
" Audit Module {0} threw the following exception during server shutdown :",
name);
_logger.log(Level.INFO, msg, ex);
}
}
}
}
public void setAuditOn(boolean auditOn) {
this.auditOn = auditOn;
}
public boolean isAuditOn() {
return auditOn;
}
protected String moduleName(final BaseAuditModule am) {
return moduleToNameMap.get(am);
}
protected List instances(final Class c) {
final List result = new ArrayList();
for (BaseAuditModule am : instances) {
if (c.isAssignableFrom(c)) {
result.add((T) am);
}
}
return result;
}
}