}

    /**
     * Record successful authentication
     *
     * @param username the username
     * @param sourceIp the source IP
     */
    public void recordSuccess(String username, String sourceIp) {
        if (username != null) {
            AccountAttempts account = accountAttempts.get(username);
            if (account != null) {
                account.reset();
            }
        }

        if (isTargetUser(username)) {
            executeCommand(deleteCommand, username, StringUtil.EMPTY);
        }
    }

    @Override
    public boolean changePassword(final String username, final String password) {
        if (isTargetUser(username) && StringUtil.isNotBlank(password)) {
            return executeCommand(updateCommand, username, password) == 0;
        }
        return true;
    }

                username = username.substring(0, ci);
            } else {
                ci = username.indexOf('\\');
                if (ci > 0) {
                    domain = username.substring(0, ci);
                    username = username.substring(ci + 1);
                }
            }
        }

        this.domain = domain != null ? domain : "";
        this.username = username != null ? username : "";

        String username = "resetuser";
        String ip = "192.168.1.5";

        // Two failures
        assertTrue(rateLimiter.checkAttempt(username, ip));
        rateLimiter.recordFailure(username, ip);

        assertTrue(rateLimiter.checkAttempt(username, ip));
        rateLimiter.recordFailure(username, ip);

        // Success should reset counter
        assertTrue(rateLimiter.checkAttempt(username, ip));

## `username` und `password` entgegennehmen

Wir werden **FastAPIs** Sicherheits-Werkzeuge verwenden, um den `username` und das `password` entgegenzunehmen.

OAuth2 spezifiziert, dass der Client/Benutzer bei Verwendung des „Password Flow“ (den wir verwenden) die Felder `username` und `password` als Formulardaten senden muss.

## Obtener el `username` y `password`

Vamos a usar las utilidades de seguridad de **FastAPI** para obtener el `username` y `password`.

OAuth2 especifica que cuando se utiliza el "password flow" (que estamos usando), el cliente/usuario debe enviar campos `username` y `password` como form data.

                    final String username = paramMap.get(CRAWLER_FILE_AUTH + "." + fileAuthName + ".username");
                    final String password = paramMap.get(CRAWLER_FILE_AUTH + "." + fileAuthName + ".password");

                    if (StringUtil.isEmpty(username)) {
                        logger.warn("username is empty. fileAuth:{}", fileAuthName);
                        continue;

    }

    /**
     * Finds a login user by username.
     *
     * @param username the username to search for
     * @return an optional entity containing the found user, or empty if not found
     */
    @Override
    protected OptionalEntity<FessUser> doFindLoginUser(final String username) {
        return userBhv.selectEntity(cb -> {
            cb.query().setName_Equal(username);
        }).map(user -> (FessUser) user);
    }

     * @param username the username to authenticate with
     * @param password the password to authenticate with
     */
    public NtlmPasswordAuthentication(String domain, String username, final String password) {
        int ci;

        if (username != null) {
            ci = username.indexOf('@');
            if (ci > 0) {
                domain = username.substring(ci + 1);
                username = username.substring(0, ci);

    }

    private String maskUsername(String username) {
        if (!maskSensitiveData || username == null) {
            return username;
        }

        // Show first and last character only
        if (username.length() <= 2) {
            return "***";
        }

        return username.charAt(0) + "***" + username.charAt(username.length() - 1);
    }