/**
* Construct a callback handler configured with the specified values. Note that if the <code>
* JAASRealm</code> instance specifies digested passwords, the <code>password</code> parameter
* will be pre-digested here.
*
* @param realm Our associated JAASRealm instance
* @param username Username to be authenticated with
* @param password Password to be authenticated with
*/
public JAASCallbackHandler(
org.apache.catalina.realm.JAASRealmRemoteInterface realm, String username, String password)
throws RemoteException {
super();
startManagers();
this.realm = realm;
this.username = username;
if (realm.hasMessageDigest()) {
this.password = realm.digest(password);
} else {
this.password = password;
}
}
/**
* Retrieve the information requested in the provided <code>Callbacks</code>. This implementation
* only recognizes {@link NameCallback}, {@link PasswordCallback} and {@link TextInputCallback}.
* {@link TextInputCallback} is used to pass the various additional parameters required for DIGEST
* authentication.
*
* @param callbacks The set of <code>Callback</code>s to be processed
* @exception IOException if an input/output error occurs
* @exception UnsupportedCallbackException if the login method requests an unsupported callback
* type
*/
@Override
public void handle(Callback callbacks[]) throws IOException, UnsupportedCallbackException {
try {
for (int i = 0; i < callbacks.length; i++) {
if (callbacks[i] instanceof NameCallback) {
if (realm.getContainer().getLogger().isTraceEnabled())
realm.getContainer().getLogger().trace(sm.getString("jaasCallback.username", username));
((NameCallback) callbacks[i]).setName(username);
} else if (callbacks[i] instanceof PasswordCallback) {
final char[] passwordcontents;
if (password != null) {
passwordcontents = password.toCharArray();
} else {
passwordcontents = new char[0];
}
((PasswordCallback) callbacks[i]).setPassword(passwordcontents);
} else if (callbacks[i] instanceof TextInputCallback) {
TextInputCallback cb = ((TextInputCallback) callbacks[i]);
if (cb.getPrompt().equals("nonce")) {
cb.setText(nonce);
} else if (cb.getPrompt().equals("nc")) {
cb.setText(nc);
} else if (cb.getPrompt().equals("cnonce")) {
cb.setText(cnonce);
} else if (cb.getPrompt().equals("qop")) {
cb.setText(qop);
} else if (cb.getPrompt().equals("realmName")) {
cb.setText(realmName);
} else if (cb.getPrompt().equals("md5a2")) {
cb.setText(md5a2);
} else if (cb.getPrompt().equals("authMethod")) {
cb.setText(authMethod);
} else {
throw new UnsupportedCallbackException(callbacks[i]);
}
} else {
throw new UnsupportedCallbackException(callbacks[i]);
}
}
} catch (Exception excp) {
excp.printStackTrace();
}
}