* @param tc the CIFS context to use
     *
     * @param req
     *            The request being serviced.
     * @param resp
     *            The response.
     * @param challenge
     *            The domain controller challenge.
     * @return credentials passed in the servlet request
     * @throws IOException
     *             If an IO error occurs.
     */

import org.apache.http.conn.DnsResolver;

/**
 * The {@code IdnDnsResolver} class implements the {@code DnsResolver} interface
 * to provide DNS resolution with support for Internationalized Domain Names (IDN).
 * It converts Unicode domain names to ASCII Compatible Encoding (ACE) using the
 * {@link java.net.IDN} class.
 *
 * <p>This class allows setting a custom flag for the IDN conversion and a custom
 * encoding for URL decoding.</p>

        when(mockCalledName.getNameType()).thenReturn(0x20);
        when(mockCalledName.getScope()).thenReturn("DOMAIN.COM");

        when(mockCallingName.getName()).thenReturn("CLIENT");
        when(mockCallingName.getNameType()).thenReturn(0x00);
        when(mockCallingName.getScope()).thenReturn("DOMAIN.COM");

        SessionRequestPacket packet = new SessionRequestPacket(mockConfig, mockCalledName, mockCallingName);

        // Set server timezone (in minutes) and domain
        nego.getServerData().serverTimeZone = 60; // 60 minutes
        nego.getServerData().oemDomainName = "DOMAIN";

        when(transport.getNegotiateResponse()).thenReturn(nego);

        assertEquals(60L * 1000L * 60L, handle.getServerTimeZoneOffset());
        assertEquals("DOMAIN", handle.getOEMDomainName());
        verify(session, times(2)).close();

# Security - First Steps { #security-first-steps }

Let's imagine that you have your **backend** API in some domain.

And you have a **frontend** in another domain or in a different path of the same domain (or in a mobile application).

And you want to have a way for the frontend to authenticate with the backend, using a **username** and **password**.

We can use **OAuth2** to build that with **FastAPI**.

        // Test with username containing special characters
        String username = "user@domain.com";
        FessUserNotFoundException exception = new FessUserNotFoundException(username);

        assertNotNull(exception);
        assertEquals("User is not found: user@domain.com", exception.getMessage());
        assertNull(exception.getCause());
    }

     * Verifies that the method returns the correct OEM domain name.
     * @throws CIFSException
     */
    @Test
    void testGetOEMDomainName() throws CIFSException {
        when(smbTreeHandle.getOEMDomainName()).thenReturn("TEST_DOMAIN");
        assertEquals("TEST_DOMAIN", smbTreeHandle.getOEMDomainName(), "OEM domain name should be TEST_DOMAIN");
    }

    /**

        mockName = new Name(mockConfig, "DOMAIN", 0x1B, null); // Domain Master Browser
        NbtAddress nbtAddress = new NbtAddress(mockName, testAddressInt, false, NbtAddress.H_NODE);
        assertEquals(NbtAddress.SMBSERVER_NAME, nbtAddress.firstCalledName());

        mockName = new Name(mockConfig, "DOMAIN", 0x1C, null); // Domain Controller

     */
    public void setCookieName(final String cookieName) {
        this.cookieName = cookieName;
    }

    /**
     * Sets the domain for the user identification cookie.
     *
     * @param cookieDomain the domain to use for the user identification cookie
     */
    public void setCookieDomain(final String cookieDomain) {
        this.cookieDomain = cookieDomain;
    }

    /**

     */
    @Override
    public String getDomain() {
        return this.domain;
    }

    /**
     * @param fullName
     *            the fullName to set
     */
    @Override
    public void setFullUNCPath(final String domain, final String server, final String fullName) {
        this.domain = domain;
        this.server = server;
        this.fullName = fullName;
    }

    /**