# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS o "Cross-Origin Resource Sharing"</a> se refiere a situaciones en las que un frontend que se ejecuta en un navegador tiene código JavaScript que se comunica con un backend, y el backend está en un "origen" diferente al frontend.

## Origen

                return false;
            }
            return fnf.accept((SmbFile) parent, name);
        }, ff == null ? null : resource -> {
            if (!(resource instanceof SmbFile)) {
                return false;
            }
            return ff.accept((SmbFile) resource);
        })) {

            final List<String> list = new ArrayList<>();
            while (it.hasNext()) {

import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.opensearch.user.exentity.User;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin user management.
 */
public class ApiAdminUserAction extends FessApiAdminAction {

    /** The logger for this class. */

import org.lastaflute.web.Execute;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.StreamResponse;

import jakarta.annotation.Resource;

/**
 * Action class for handling document redirection requests.
 * This action processes "go" requests that redirect users to specific documents

- **Per-context configuration**: No global state, each context encapsulates configuration
- **Authentication**: NTLM, Kerberos, SPNEGO unified subsystem
- **SLF4J Logging**: Comprehensive logging throughout the codebase
- **Resource Management**: AutoCloseable patterns for file handles and connections
- **Thread Safety**: Components support concurrent access
- **DFS Support**: Distributed File System resolution

    /** Database behavior for bad word operations. */
    @Resource
    protected BadWordBhv badWordBhv;

    /** Search engine client for index operations. */
    @Resource
    protected SearchEngineClient searchEngineClient;

    /** Fess configuration. */
    @Resource
    protected FessConfig fessConfig;

    /**
     * Default constructor for BadWordService.
     */

    @Resource
    private FileConfigService fileConfigService;

    /** Pager for file configuration list pagination. */
    @Resource
    private FileConfigPager fileConfigPager;

    /** Service for role type operations. */
    @Resource
    private RoleTypeService roleTypeService;

    /** Service for label type operations. */
    @Resource
    private LabelTypeService labelTypeService;

import org.codelibs.fess.util.RenderDataUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * Admin action for Dashboard.
 *
 */
public class AdminDashboardAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminDashboardAction() {

    protected static File getFileForClasspathResource(String resource)
            throws FileNotFoundException, URISyntaxException {
        ClassLoader cloader = Thread.currentThread().getContextClassLoader();

        URL resourceUrl = cloader.getResource(resource);

        if (resourceUrl == null) {
            throw new FileNotFoundException("Unable to find: " + resource);
        }

    @Override
    public String getLocation() {
        StringBuilder buffer = new StringBuilder(256);

        if (!getSource().isEmpty()) {
            if (!buffer.isEmpty()) {
                buffer.append(", ");
            }
            buffer.append(getSource());
        }

        if (getLineNumber() > 0) {
            if (!buffer.isEmpty()) {
                buffer.append(", ");
            }