# CORS（跨域资源共享）

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS 或者「跨域资源共享」</a> 指浏览器中运行的前端拥有与后端通信的 JavaScript 代码，而后端处于与前端不同的「源」的情况。

## 源

源是协议（`http`，`https`）、域（`myapp.com`，`localhost`，`localhost.tiangolo.com`）以及端口（`80`、`443`、`8080`）的组合。

因此，这些都是不同的源：

* `http://localhost`
* `https://localhost`
* `http://localhost:8080`

即使它们都在 `localhost` 中，但是它们使用不同的协议或者端口，所以它们都是不同的「源」。

## 步骤

import java.util.TreeMap;
import java.util.regex.MatchResult;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Checks adoc files for broken links.
 */
@CacheableTask
public abstract class FindBrokenInternalLinks extends DefaultTask {

    private final Pattern linkPattern = Pattern.compile("<<([^,>]+)[^>]*>>");
    private final Pattern linkWithHashPattern = Pattern.compile("([a-zA-Z_0-9-.]*)#(.*)");

import org.codelibs.fess.crawler.log.LogType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author shinsuke
 *
 */
public class LogHelperImpl implements LogHelper {

    private static final Logger logger = LoggerFactory.getLogger(LogHelperImpl.class);

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.helper.LogHelper#log(org.codelibs.fess.crawler.log.LogType,

import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;

import jcifs.SID;
import jcifs.smb.SmbException;

public class SambaHelperTest extends UnitFessTestCase {

    public SambaHelper sambaHelper;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        sambaHelper = new SambaHelper();
    }

import org.codelibs.core.stream.StreamUtil;
import org.codelibs.fess.util.ComponentUtil;

import jakarta.annotation.PostConstruct;

public class FileTypeHelper {
    private static final Logger logger = LogManager.getLogger(FileTypeHelper.class);

    protected String defaultValue = "others";

    protected Map<String, String> mimetypeMap = new LinkedHashMap<>();

    @PostConstruct
    public void init() {

    extensions.getByType(VersionCatalogsExtension::class.java).named("libs")
      .findLibrary("kotlin.stdlib.osgi").get().get()

  project.dependencies {
    osgiApi(kotlinOsgi)
  }

  val jarTask = tasks.getByName<Jar>(jarTaskName)
  val bundleExtension =
    jarTask.extensions.findByType() ?: jarTask.extensions.create(
      BundleTaskExtension.NAME,
      BundleTaskExtension::class.java,
      jarTask,
    )

/**
 * Listener for connection events. Extend this class to monitor the new connections and closes.
 *
 * All event methods must execute fast, without external locking, cannot throw exceptions,
 * attempt to mutate the event parameters, or be reentrant back into the client.
 * Any IO - writing to files or network should be done asynchronously.
 */
@ExperimentalOkHttpApi
abstract class ConnectionListener {
  /**

import org.codelibs.core.log.Logger;

/**
 * {@link DocumentBuilderFactory}の用のユーティリティクラスです。
 *
 * @author higa
 */
public abstract class DocumentBuilderFactoryUtil {

    private static final Logger logger = Logger.getLogger(DocumentBuilderFactoryUtil.class);

    /**
     * 新しい {@link DocumentBuilderFactory}のインスタンスを返します。
     *
     * @return 新しい {@link DocumentBuilderFactory}のインスタンス
     */

import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;

/**
 * @author higa
 *
 */
public class CalendarConversionUtilTest {

    /**
     * @see org.junit.rules.ExpectedException
     */
    @Rule
    public ExpectedException exception = ExpectedException.none();

    /**
     * @throws Exception

import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assumptions.assumeTrue;

/**
 * Test that validate the solution of MNG-6261 issue
 *
 */
class FileModelSourceTest {

    /**
     * Test of equals method, of class FileModelSource.
     */
    @Test
    void testEquals() throws Exception {
        File tempFile = createTempFile("pomTest");