assertTrue(AdminLogAction.isLogFilename("application-2024-01-01.log.gz"));
    }

    @Test
    public void test_isLogFilename_withInvalidExtension() {
        assertFalse(AdminLogAction.isLogFilename("fess.txt"));
        assertFalse(AdminLogAction.isLogFilename("fess.log.bak"));
        assertFalse(AdminLogAction.isLogFilename("fess.log.zip"));
        assertFalse(AdminLogAction.isLogFilename("fess.logs"));

        final String filename = sanitizeFilename(new String(Base64.getDecoder().decode(id), StandardCharsets.UTF_8));
        final String logFilePath = systemHelper.getLogFilePath();
        if (StringUtil.isNotBlank(logFilePath) && isLogFilename(filename)) {
            final Path path = Paths.get(logFilePath, filename);
            return asStream(filename).contentTypeOctetStream().stream(out -> {
                try (InputStream in = Files.newInputStream(path)) {

 */
package org.codelibs.fess.app.web.api.admin.log;

import static org.codelibs.fess.app.web.admin.log.AdminLogAction.getLogFileItems;
import static org.codelibs.fess.app.web.admin.log.AdminLogAction.isLogFilename;

import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Base64;
import java.util.List;

        assertTrue(action.isLogFilename("fess.log.gz"));
        assertTrue(action.isLogFilename("crawler.log.gz"));
    }

    @Test
    public void test_isLogFilename_invalidExtension() {
        final AdminMaintenanceAction action = new AdminMaintenanceAction();
        assertFalse(action.isLogFilename("fess.txt"));
        assertFalse(action.isLogFilename("fess.xml"));

        if (StringUtil.isNotBlank(logFilePath)) {
            final Path logDirPath = Paths.get(logFilePath);
            try (Stream<Path> stream = Files.list(logDirPath)) {
                stream.filter(entry -> isLogFilename(entry.getFileName().toString())).forEach(filePath -> {
                    final ZipEntry entry = new ZipEntry(id + "/" + filePath.getFileName().toString());
                    try {