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package com.sun.web.security;
import java.security.*;
import java.io.*;
import java.util.logging.Logger;
import java.util.logging.Level;
import javax.servlet.ServletRequest;
import javax.servlet.ServletRequestWrapper;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.sun.enterprise.security.web.integration.WebPrincipal;
import org.apache.catalina.Session;
import org.apache.catalina.Context;
import org.apache.catalina.Manager;
import com.sun.logging.LogDomains;
import com.sun.enterprise.security.auth.login.LoginContextDriver;
import com.sun.enterprise.security.SecurityContext;
import org.apache.catalina.connector.Request;
import org.apache.catalina.connector.RequestFacade;
import org.jvnet.hk2.annotations.Service;
import com.sun.enterprise.security.web.integration.WebProgrammaticLogin;
/**
* Internal implementation for servlet programmatic login.
*
* @see com.sun.enterprise.security.ee.auth.login.ProgrammaticLogin
*
*/
@Service
public class WebProgrammaticLoginImpl implements WebProgrammaticLogin {
// Used for the auth-type string.
public static final String WEBAUTH_PROGRAMMATIC="PROGRAMMATIC";
private static Logger logger =
LogDomains.getLogger(WebProgrammaticLoginImpl.class, LogDomains.SECURITY_LOGGER);
/**
* Login and set up principal in request and session. This implements
* programmatic login for servlets.
*
* Due to a number of bugs in RI the security context is not
* shared between web container and ejb container. In order for an
* identity established by programmatic login to be known to both
* containers, it needs to be set not only in the security context but
* also in the current request and, if applicable, the session object.
* If a session does not exist this method does not create one.
*
*
See bugs 4646134, 4688449 and other referenced bugs for more
* background.
*
*
Note also that this login does not hook up into SSO.
*
* @param user User name to login.
* @param password User password.
* @param request HTTP request object provided by caller application. It
* should be an instance of HttpRequestFacade.
* @param response HTTP response object provided by called application. It
* should be an instance of HttpServletResponse. This is not used
* currently.
* @param realm the realm name to be authenticated to. If the realm is null,
* authentication takes place in default realm
* @returns A Boolean object; true if login succeeded, false otherwise.
* @see com.sun.enterprise.security.ee.auth.login.ProgrammaticLogin
* @throws Exception on login failure.
*
*/
public Boolean login(String user, char[] password, String realm,
HttpServletRequest request,
HttpServletResponse response)
{
// Need real request object not facade
Request req = getUnwrappedCoyoteRequest(request);
if (req == null) {
return Boolean.valueOf(false);
}
// Try to login - this will set up security context on success
LoginContextDriver.login(user, password, realm);
// Create a WebPrincipal for tomcat and store in current request
// This will allow programmatic authorization later in this request
// to work as expected.
SecurityContext secCtx = SecurityContext.getCurrent();
assert (secCtx != null); // since login succeeded above
WebPrincipal principal = new WebPrincipal(user, password, secCtx);
req.setUserPrincipal(principal);
req.setAuthType(WEBAUTH_PROGRAMMATIC);
if(logger.isLoggable(Level.FINE)){
logger.log(Level.FINE, "Programmatic login set principal in http request to: "+
user);
}
// Try to retrieve a Session object (not the facade); if it exists
// store the principal there as well. This will allow web container
// authorization to work in subsequent requests in this session.
Session realSession = getSession(req);
if (realSession != null) {
realSession.setPrincipal((Principal)principal);
realSession.setAuthType(WEBAUTH_PROGRAMMATIC);
if(logger.isLoggable(Level.FINE)){
logger.log(Level.FINE, "Programmatic login set principal in session.");
}
} else {
if(logger.isLoggable(Level.FINE)){
logger.log(Level.FINE,"Programmatic login: No session available.");
}
}
return Boolean.valueOf(true);
}
/**
* Return the unwrapped CoyoteRequest object.
*/
private static Request getUnwrappedCoyoteRequest(HttpServletRequest request){
Request req = null;
ServletRequest servletRequest = request;
try{
ServletRequest prevRequest = null;
while (servletRequest != prevRequest
&& servletRequest instanceof ServletRequestWrapper) {
prevRequest = servletRequest;
servletRequest =
((ServletRequestWrapper)servletRequest).getRequest();
}
if (servletRequest instanceof RequestFacade) {
req = ((RequestFacade)servletRequest).getUnwrappedCoyoteRequest();
}
} catch (AccessControlException ex){
logger.log(Level.FINE, "Programmatic login faiied to get request");
}
return req;
}
/**
* Logout and remove principal in request and session.
*
* @param request HTTP request object provided by caller application. It
* should be an instance of HttpRequestFacade.
* @param response HTTP response object provided by called application. It
* should be an instance of HttpServletResponse. This is not used
* currently.
* @returns A Boolean object; true if login succeeded, false otherwise.
* @see com.sun.enterprise.security.ee.auth.login.ProgrammaticLogin
* @throws Exception any exception encountered during logout operation
*/
public Boolean logout(HttpServletRequest request,
HttpServletResponse response) throws Exception
{
// Need real request object not facade
Request req = getUnwrappedCoyoteRequest(request);
if (req == null) {
return Boolean.valueOf(false);
}
// Logout - clears out security context
LoginContextDriver.logout();
// Remove principal and auth type from request
req.setUserPrincipal(null);
req.setAuthType(null);
if(logger.isLoggable(Level.FINE)){
logger.log(Level.FINE, "Programmatic logout removed principal from request.");
}
// Remove from session if possible.
Session realSession = getSession(req);
if (realSession != null) {
realSession.setPrincipal(null);
realSession.setAuthType(null);
if(logger.isLoggable(Level.FINE)){
logger.log(Level.FINE, "Programmatic logout removed principal from "+
"session.");
}
}
return Boolean.valueOf(true);
}
/**
* Returns the underlying Session object from the request, if one is
* available, or null.
*
*/
private static Session getSession(Request request)
{
HttpSession session = request.getSession(false);
if (session != null) {
Context context = request.getContext();
if (context != null) {
Manager manager = context.getManager();
if (manager != null) {
// need to locate the real Session obj
String sessionId = session.getId();
try {
Session realSession = manager.findSession(sessionId);
return realSession;
} catch (IOException e) {
// ignored
return null;
}
}
}
}
return null;
}
}