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package com.sun.s1asdev.security.jmac.httpservletform;
import java.util.Map;
import java.security.Principal;
import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.message.AuthException;
import javax.security.auth.message.AuthStatus;
import javax.security.auth.message.MessageInfo;
import javax.security.auth.message.MessagePolicy;
import javax.security.auth.message.callback.CallerPrincipalCallback;
import javax.security.auth.message.callback.PasswordValidationCallback;
import javax.security.auth.message.module.ServerAuthModule;
import javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import sun.misc.BASE64Decoder;
public class HttpServletFormTestAuthModule implements ServerAuthModule {
private static final String SAVED_REQUEST = "Saved_Request";
private static final String SAVED_SUBJECT = "Saved_Subject";
private CallbackHandler handler = null;
private String pc = null;
public void initialize(MessagePolicy requestPolicy,
MessagePolicy responsePolicy,
CallbackHandler handler,
Map options)
throws AuthException {
this.handler = handler;
if (options != null) {
this.pc = (String)options.get("javax.security.jacc.PolicyContext");
}
}
public Class[] getSupportedMessageTypes() {
return new Class[] { HttpServletRequest.class, HttpServletResponse.class };
}
public AuthStatus validateRequest(MessageInfo messageInfo,
Subject clientSubject,
Subject serviceSubject) throws AuthException {
String username = null;
String password = null;
HttpServletRequest request =
(HttpServletRequest)messageInfo.getRequestMessage();
HttpServletResponse response =
(HttpServletResponse)messageInfo.getResponseMessage();
if (!isMandatory(messageInfo) &&
!request.getRequestURI().endsWith("/j_security_check")) {
return AuthStatus.SUCCESS;
}
try {
HttpSession session = request.getSession(false);
if (session != null) {
Subject savedClientSubject =
(Subject)session.getValue(SAVED_SUBJECT);
if (savedClientSubject != null) {
System.out.println("already has saved subject");
// just copy principals for testing
clientSubject.getPrincipals().addAll(
savedClientSubject.getPrincipals());
request.setAttribute("MY_NAME", getClass().getName());
request.setAttribute("PC", pc);
return AuthStatus.SUCCESS;
}
}
username = request.getParameter("j_username");
password = request.getParameter("j_password");
if (username == null || password == null) {
System.out.println("forward to login form");
if (session == null) {
session = request.getSession(true);
}
session.putValue(SAVED_REQUEST, new SavedRequest(request));
RequestDispatcher rd = request.getRequestDispatcher("login.jsp");
rd.forward(request, response);
System.out.println("Form: SEND_CONTINUE");
return AuthStatus.SEND_CONTINUE;
}
char[] pwd = new char[password.length()];
password.getChars(0, password.length(), pwd, 0);
PasswordValidationCallback pwdCallback =
new PasswordValidationCallback(clientSubject, username, pwd);
CallerPrincipalCallback cpCallback =
new CallerPrincipalCallback(clientSubject, username);
System.out.println("Subject before invoking callbacks: " + clientSubject);
handler.handle(new Callback[] { pwdCallback, cpCallback });
System.out.println("Subject after invoking callbacks: " + clientSubject);
if (pwdCallback.getResult()) {
System.out.println("login success: " + username + ", " + password);
SavedRequest sreq = null;
if (session != null) {
sreq = (SavedRequest)session.getValue(SAVED_REQUEST);
// for testing only as Subject is not Serializable
session.putValue(SAVED_SUBJECT, clientSubject);
}
if (sreq != null) {
StringBuffer sb = new StringBuffer(sreq.getRequestURI());
if (sreq.getQueryString() != null) {
sb.append('?');
sb.append(sreq.getQueryString());
}
response.sendRedirect(
response.encodeRedirectURL(sb.toString()));
return AuthStatus.SEND_CONTINUE;
} else {
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
return AuthStatus.SEND_FAILURE;
}
} else {
System.out.println("login fails: " + username + ", " + password);
RequestDispatcher rd = request.getRequestDispatcher("error.html");
rd.forward(request, response);
return AuthStatus.SEND_FAILURE;
}
} catch(Throwable t) {
System.out.println("login fails: " + username + ", " + password);
t.printStackTrace();
RequestDispatcher rd = request.getRequestDispatcher("error.html");
try {
rd.forward(request, response);
} catch(Exception ex) {
AuthException ae = new AuthException();
ae.initCause(ex);
throw ae;
}
return AuthStatus.SEND_FAILURE;
}
}
public AuthStatus secureResponse(MessageInfo messageInfo,
Subject serviceSubject) throws AuthException {
return AuthStatus.SUCCESS;
}
public void cleanSubject(MessageInfo messageInfo, Subject subject)
throws AuthException {
}
private boolean isMandatory(MessageInfo messageInfo) {
return Boolean.valueOf((String)messageInfo.getMap().get(
"javax.security.auth.message.MessagePolicy.isMandatory"));
}
}