import org.apache.commons.lang3.StringUtils;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPClient.NatServerResolverImpl;
import org.apache.commons.net.ftp.FTPClientConfig;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPFileFilters;
import org.apache.commons.net.ftp.FTPSClient;
import org.apache.commons.net.util.TrustManagerUtils;

                return "file,smb,ftp";
            }
        });

        final ProtocolHelper protocolHelper = new ProtocolHelper();
        protocolHelper.init();

        assertTrue(protocolHelper.isValidFileProtocol("file:///path/to/file"));
        assertTrue(protocolHelper.isValidFileProtocol("smb://server/share"));
        assertTrue(protocolHelper.isValidFileProtocol("ftp://server/path"));

#                                                     ------
# Does it send mock mail? (true: no send actually, logging only)
mail.send.mock = true

# SMTP server settings for main: host:port
mail.smtp.server.main.host.and.port = localhost:25

# The prefix of subject to show test environment or not
mail.subject.test.prefix = [Test]

# The common return path of all mail

                props.setProperty(FessEnv.MAIL_SMTP_SERVER_MAIN_HOST_AND_PORT, "smtp-relay.example.com:465");
                props.setProperty(FessEnv.MAIL_SUBJECT_TEST_PREFIX, "[テスト環境]");
                props.setProperty(FessEnv.MAIL_RETURN_PATH, "******@****.***");
                return props;
            }
        };

        assertEquals("smtp-relay.example.com:465", specialMailEnv.getMailSmtpServerMainHostAndPort());

        // ftp
        assertUrlLink("ftp://www.codelibs.org/", //
                "ftp://www.codelibs.org/");
        assertUrlLink("ftp://www.codelibs.org/あ", //
                "ftp://www.codelibs.org/あ");
        assertUrlLink("ftp://www.codelibs.org/%E3%81%82", //
                "ftp://www.codelibs.org/%E3%81%82");
        assertUrlLink("ftp://www.codelibs.org/%z", //

#                                                     ------
# Does it send mock mail? (true: no send actually, logging only)
mail.send.mock = false

# SMTP server settings for main: host:port
mail.smtp.server.main.host.and.port = localhost:25

# The prefix of subject to show test environment or not
mail.subject.test.prefix = 

# The common return path of all mail
mail.return.path = root@localhost

#                                                     ------
# Does it send mock mail? (true: no send actually, logging only)
mail.send.mock = false

# SMTP server settings for main: host:port
mail.smtp.server.main.host.and.port = localhost:25

# The prefix of subject to show test environment or not
mail.subject.test.prefix = 

# The common return path of all mail
mail.return.path = root@localhost

     *
     * @param url the URL to check
     * @return true if the URL uses a file path protocol (smb, smb1, file, ftp, s3, gcs)
     */
    public boolean isFilePathProtocol(final String url) {
        return url.startsWith("smb:") || url.startsWith("smb1:") || url.startsWith("file:") || url.startsWith("ftp:")
                || url.startsWith("s3:") || url.startsWith("gcs:");
    }

    /**

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.client.ftp;

import java.net.URI;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;

/**
 * FtpAuthentication class holds the authentication information for FTP connections.
 * It includes server address, port number, username, and password.

    }

    @Test
    public void test_isFileSystemPath_ftp_protocol() {
        assertTrue(goAction.isFileSystemPath("ftp://ftp.example.com/path/file.txt"));
        assertTrue(goAction.isFileSystemPath("ftp://user:pass@ftp.example.com/file.txt"));
        assertTrue(goAction.isFileSystemPath("ftp://192.168.1.1/file.txt"));
    }

    @Test
    public void test_isFileSystemPath_storage_protocol() {