Many Active Directory and other LDAP services are setup with [DNS SRV Records](https://ldap.com/dns-srv-records-for-ldap/) for high-availability of the directory service. To use this to find LDAP servers to connect to, an LDAP client makes a DNS SRV record request to the DNS service on a domain that looks like `_service._proto.example.com`. For LDAP the `proto` value is always `tcp`, and `service` is usually `ldap` or `ldaps`.

			return
		}

		// In case of LDAP/OIDC we need to set `opts.claims` to ensure
		// it is associated with the LDAP/OIDC user properly.
		for k, v := range cred.Claims {
			if k == expClaim {
				continue
			}
			opts.claims[k] = v
		}
	} else {
		// We still need to ensure that the target user is a valid LDAP user.
		//

)

// Config contains AD/LDAP server connectivity information.
type Config struct {
	LDAP ldap.Config

	stsExpiryDuration time.Duration // contains converted value
}

// Enabled returns if LDAP is enabled.
func (l *Config) Enabled() bool {
	return l.LDAP.Enabled
}

// Clone returns a cloned copy of LDAP config.
func (l *Config) Clone() Config {
	if l == nil {

    }

    /**
     * Escapes special characters in an LDAP search filter to prevent LDAP injection attacks.
     *
     * @param filter the LDAP search filter to escape (null is treated as empty string)
     * @return the escaped filter string safe for use in LDAP queries (empty string if filter is null)
     * @see <a href="https://tools.ietf.org/html/rfc4515">RFC 4515 - LDAP String Representation of Search Filters</a>

        Exception innerCause = new IllegalArgumentException("Invalid LDAP parameter");
        RuntimeException middleCause = new RuntimeException("LDAP configuration error", innerCause);
        LdapOperationException exception = new LdapOperationException("LDAP operation failed", middleCause);

        assertEquals("LDAP operation failed", exception.getMessage());
        assertEquals(middleCause, exception.getCause());

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;

/**
 * An LDAP user.
 */
public class LdapUser implements FessUser {

    private static final long serialVersionUID = 1L;

    /** The environment for LDAP connection. */
    protected Hashtable<String, String> env;

    /** The name of the user. */
    protected String name;

        String message = "LDAP error: \"Invalid <config>\" & 'bad chars' @ #$%^&*()";
        LdapConfigurationException exception = new LdapConfigurationException(message);

        assertEquals(message, exception.getMessage());
    }

    @Test
    public void test_unicodeCharactersInMessage() {
        // Test with Unicode characters in message
        String message = "LDAP設定エラー: 接続失敗 🚫 ñ é ü ß";

    public Integer purgeSuggestSearchLogDay;

    /**
     * LDAP server URL for authentication.
     * Used when LDAP authentication is enabled.
     */
    @Size(max = 1000)
    public String ldapProviderUrl;

    /**
     * LDAP security principal for binding to the LDAP server.
     * Used for authenticating with the LDAP server.
     */
    @Size(max = 1000)
    public String ldapSecurityPrincipal;

 */
package org.codelibs.fess.ldap;

/**
 * Utility class for LDAP operations.
 */
public final class LdapUtil {

    private LdapUtil() {
    }

    /**
     * Escapes special characters in a value for use in LDAP search filters.
     * This method escapes characters that have special meaning in LDAP filter expressions
     * to prevent LDAP injection attacks.
     *

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.auth.chain;

import org.codelibs.fess.ldap.LdapManager;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.opensearch.user.exentity.User;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;