- callbackHandler.handle(new Callback[] { label, nameCallback,
- passwordCallback, urlCallback });
- } catch (Exception e) {
- LoginException le = new LoginException("Callback handling failed");
- le.initCause(e);
- throw le;
- }
-
- // Set user name and password
- String username = nameCallback.getName();
- String password = "";
- if (passwordCallback.getPassword() != null) {
- password = String.valueOf(passwordCallback.getPassword());
- }
- String url = urlCallback.getName();
- // TODO: set it via system properties
- String workspace = null;
-
- // UsernamePasswordAuthenticationToken credentials = new
- // UsernamePasswordAuthenticationToken(
- // username, password);
- SiteAuthenticationToken credentials = new SiteAuthenticationToken(
- username, password, url, workspace);
-
- try {
- Authentication authentication = authenticationManager
- .authenticate(credentials);
+ // thread already logged in
+ if (SecurityContextHolder.getContext().getAuthentication() != null)
+ return super.login();
+
+ // reset all principals and credentials
+ if (log.isTraceEnabled())
+ log.trace("Resetting all principals and credentials of "
+ + subject);
+ if (subject.getPrincipals() != null)
+ subject.getPrincipals().clear();
+ if (subject.getPrivateCredentials() != null)
+ subject.getPrivateCredentials().clear();
+ if (subject.getPublicCredentials() != null)
+ subject.getPublicCredentials().clear();
+
+ // ask for username and password
+ NameCallback nameCallback = new NameCallback("User");
+ PasswordCallback passwordCallback = new PasswordCallback(
+ "Password", false);
+
+ // NameCallback urlCallback = new NameCallback("Site URL");
+
+ if (callbackHandler == null)
+ throw new LoginException("No call back handler available");
+ callbackHandler.handle(new Callback[] { nameCallback,
+ passwordCallback });
+
+ // Set user name and password
+ String username = nameCallback.getName();
+ if (username == null || username.trim().equals(""))
+ return false;
+
+ String password = "";
+ if (passwordCallback.getPassword() != null)
+ password = String.valueOf(passwordCallback.getPassword());
+
+ // String url = urlCallback.getName();
+ // TODO: set it via system properties
+ String workspace = null;
+
+ SiteAuthenticationToken credentials = new SiteAuthenticationToken(
+ username, password, null, workspace);
+
+ Authentication authentication;
+ try {
+ authentication = authenticationManager
+ .authenticate(credentials);
+ } catch (BadCredentialsException e) {
+ // wait between failed login attempts
+ Thread.sleep(waitBetweenFailedLoginAttempts);
+ throw e;
+ }