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package com.sun.enterprise.security;
import java.security.Principal;
import java.security.PrivilegedAction;
import javax.security.auth.Subject;
import com.sun.enterprise.security.auth.login.PasswordCredential;
import com.sun.enterprise.deployment.PrincipalImpl;
import com.sun.enterprise.ServerConfiguration;
import java.util.logging.*;
import com.sun.logging.*;
/**
* This class represents the security context on the client side.
* For usage of the IIOP_CLIENT_PER_THREAD_FLAG flag, see
* UsernamePasswordStore. When set to false, the volatile
* field sharedCsc is used to store the context.
*
* @see UsernamePasswordStore
* @author Harpreet Singh
*
*/
public final class ClientSecurityContext extends AbstractSecurityContext {
private static final Logger _logger =
LogDomains.getLogger(LogDomains.SECURITY_LOGGER);
public static final String IIOP_CLIENT_PER_THREAD_FLAG =
"com.sun.appserv.iiopclient.perthreadauth";
// Bug Id: 4787940
private static final boolean isPerThreadAuth =
Boolean.getBoolean(IIOP_CLIENT_PER_THREAD_FLAG);
// either the thread local or shared version will be used
private static ThreadLocal localCsc =
isPerThreadAuth ? new ThreadLocal() : null;
private static volatile ClientSecurityContext sharedCsc;
/**
* This creates a new ClientSecurityContext object.
* @param The name of the user.
* @param The Credentials of the user.
*/
public ClientSecurityContext(String userName,
Subject s) {
this.initiator = new PrincipalImpl(userName);
this.subject = s ;
}
/**
* Initialize the SecurityContext & handle the unauthenticated
* principal case
*/
public static ClientSecurityContext init() {
ClientSecurityContext sc = getCurrent();
if (sc == null) { // there is no current security context
// create a default one if
sc = generateDefaultSecurityContext();
}
return sc;
}
private static ClientSecurityContext generateDefaultSecurityContext() {
final String PRINCIPAL_NAME = "auth.default.principal.name";
final String PRINCIPAL_PASS = "auth.default.principal.password";
ServerConfiguration config = ServerConfiguration.getConfiguration();
String username = config.getProperty(PRINCIPAL_NAME, "guest");
String password = config.getProperty(PRINCIPAL_PASS, "guest123");
synchronized (ClientSecurityContext.class) {
// login & all that stuff..
try {
final Subject subject = new Subject();
final PasswordCredential pc = new PasswordCredential(username,
password, "default");
AppservAccessController.doPrivileged(new PrivilegedAction() {
public java.lang.Object run() {
subject.getPrivateCredentials().add(pc);
return null;
}
});
// we do not need to generate any credential as authorization
// decisions are not being done on the appclient side.
ClientSecurityContext defaultCSC =
new ClientSecurityContext(username, subject);
setCurrent(defaultCSC);
return defaultCSC;
} catch(Exception e) {
_logger.log(Level.SEVERE,
"java_security.gen_security_context", e);
return null;
}
}
}
/**
* This method gets the SecurityContext stored here. If using a
* per-thread authentication model, it gets the context from
* Thread Local Store (TLS) of the current thread. If not using a
* per-thread authentication model, it gets the singleton context.
*
* @return The current Security Context stored here. It returns
* null if SecurityContext could not be found.
*/
public static ClientSecurityContext getCurrent() {
if (isPerThreadAuth) {
return (ClientSecurityContext) localCsc.get();
} else {
return sharedCsc;
}
}
/**
* This method sets the SecurityContext to be stored here.
*
* @param The Security Context that should be stored.
*/
public static void setCurrent(ClientSecurityContext sc) {
if (isPerThreadAuth) {
localCsc.set(sc);
} else {
sharedCsc = sc;
}
}
/**
* This method returns the caller principal.
* This information may be redundant since the same information
* can be inferred by inspecting the Credentials of the caller.
*
* @return The caller Principal.
*/
public Principal getCallerPrincipal() {
return initiator;
}
public Subject getSubject() {
return subject;
}
public String toString() {
return "ClientSecurityContext[ " + "Initiator: " + initiator +
"Subject " + subject + " ]";
}
}
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