* Einem Header.
    * Einem Cookie.
* `http`: Standard-HTTP-Authentifizierungssysteme, einschließlich:
    * `bearer`: ein Header `Authorization` mit dem Wert `Bearer` plus einem Token. Dies wird von OAuth2 geerbt.
    * HTTP Basic Authentication.
    * HTTP Digest, usw.
* `oauth2`: Alle OAuth2-Methoden zum Umgang mit Sicherheit (genannt „Flows“).

      },
      "timestamp": {
        "type": "date",
        "format": "date_optional_time"
      },
      "expires": {
        "type": "date",
        "format": "date_optional_time"
      },
      "digest": {
        "type": "text",
        "index": false
      },
      "doc_id": {
        "type": "keyword"
      },
      "favorite_count": {
        "type": "long"
      },
      "filename": {

        dstIndex += writeHeaderWireFormat(dst, dstIndex);
        dstIndex += writeAndXWireFormat(dst, dstIndex);
        this.length = dstIndex - start;

        if (this.digest != null) {
            this.digest.sign(dst, this.headerStart, this.length, this, this.getResponse());
        }

        return this.length;
    }

    /*
     * We overload this because we want readAndXWireFormat to

                    return "alerts,roles";

                case FessConfig.INDEX_FIELD_CACHE:
                    return "cache";
                case FessConfig.INDEX_FIELD_DIGEST:
                    return "digest";
                case FessConfig.INDEX_FIELD_HOST:
                    return "host";
                case FessConfig.INDEX_FIELD_SITE:
                    return "site";

    }

    public void test_variousTokenTypes() {
        // Test with various common token types
        String[] tokenTypes = { "Bearer", "JWT", "OAuth", "OAuth2", "APIKey", "Session", "Basic", "Digest", "SAML", "OpenID" };

        for (String tokenType : tokenTypes) {
            String message = tokenType + " token is invalid";

  * Una cookie.
* `http`: sistemas de autenticación HTTP estándar, incluyendo:
  * `bearer`: un header `Authorization` con un valor de `Bearer ` más un token. Esto se hereda de OAuth2.
  * Autenticación básica HTTP.
  * Digest HTTP, etc.
* `oauth2`: todas las formas de OAuth2 para manejar la seguridad (llamadas "flujos").

    * `bearer`: заголовок `Authorization` со значением `Bearer {уникальный токен}`. Это унаследовано от OAuth2.
    * Базовая аутентификация по протоколу HTTP.
    * HTTP Digest и т.д.
* `oauth2`: все способы обеспечения безопасности OAuth2 называемые "потоки" (англ. "flows").

            return entity;
        });
    }

    /**
     * Registers available protocol scheme items for web authentication forms.
     * Includes Basic, Digest, NTLM, and Form authentication schemes.
     *
     * @param data the render data to register the protocol scheme items with
     */
    protected void registerProtocolSchemeItems(final RenderData data) {

        // mimetype
        defaultDataMap.put(fessConfig.getIndexFieldMimetype(), mimeType);
        // title
        // content
        // cache
        // digest
        // host
        // site
        // url
        // anchor
        // content_length
        // last_modified
        // id
        // virtual_host

        this.fid = fid;
        this.offset = offset;
        this.remaining = remaining;
        this.b = b;
        this.off = off;
        this.dataLength = len;
        this.digest = null; /*
                             * otherwise recycled commands
                             * like writeandx will choke if session
                             * closes in between
                             */
    }