Example usage for javax.security.auth.callback NameCallback NameCallback

Introduction

In this page you can find the example usage for javax.security.auth.callback NameCallback NameCallback.

Prototype

public NameCallback(String prompt)

Source Link

Document

Construct a NameCallback with a prompt.

Usage

From source file:org.apache.jackrabbit.core.security.authentication.AbstractLoginModule.java

/**
 * Method supports tries to acquire a UserID in the follwing order:
 * <ol>/*w w  w.ja v a2 s .c o m*/
 * <li>If passed credentials are {@link GuestCredentials} the anonymous user id
 * is returned.</li>
 * <li>Try to access it from the {@link Credentials} via {@link
 * SimpleCredentials#getUserID()}</li>
 * <li>Ask CallbackHandler for User-ID with use of {@link NameCallback}.</li>
 * <li>Test if the 'sharedState' contains a login name.</li>
 * <li>Fallback: return the anonymous UserID.</li>
 * </ol>
 *
 * @param credentials which, may contain a User-ID
 * @return The userId retrieved from the credentials or by any other means
 * described above.
 * @see #login()
 */
protected String getUserID(Credentials credentials) {
    String userId = null;
    if (credentials != null) {
        if (credentials instanceof GuestCredentials) {
            userId = anonymousId;
        } else if (credentials instanceof SimpleCredentials) {
            userId = ((SimpleCredentials) credentials).getUserID();
        } else {
            try {
                NameCallback callback = new NameCallback("User-ID: ");
                callbackHandler.handle(new Callback[] { callback });
                userId = callback.getName();
            } catch (UnsupportedCallbackException e) {
                log.warn("Credentials- or NameCallback must be supported");
            } catch (IOException e) {
                log.error("Name-Callback failed: " + e.getMessage());
            }
        }
    }
    if (userId == null && sharedState.containsKey(KEY_LOGIN_NAME)) {
        userId = (String) sharedState.get(KEY_LOGIN_NAME);
    }

    // still no userId -> anonymousID if its has been defined.
    // TODO: check again if correct when used with 'extendedAuth'
    if (userId == null) {
        userId = anonymousId;
    }
    return userId;
}

From source file:org.forgerock.openam.authentication.modules.impersonation.ImpersonationModule.java

private void substituteUIStrings() throws AuthLoginException {
    // Get service specific attribute configured in OpenAM
    System.out.println("question from config: " + question);

    Callback[] crquestion = getCallback(2);

    replaceCallback(2, 0, new NameCallback(question));
}