SMB3 leases provide a client caching mechanism that replaces the traditional oplock mechanism. Leases enable better performance through client-side caching while maintaining cache coherency across multiple clients.

## 2. Protocol Specification Reference

- **MS-SMB2 Section 2.2.13**: SMB2 CREATE Request with Lease Context
- **MS-SMB2 Section 2.2.14**: SMB2 CREATE Response with Lease State
- **MS-SMB2 Section 2.2.23**: SMB2 LEASE_BREAK Notification

  /**
   * The HTTP <a href="https://datatracker.ietf.org/doc/html/rfc6455">{@code
   * Sec-WebSocket-Protocol}</a> header field name.
   *
   * @since 28.0
   */
  public static final String SEC_WEBSOCKET_PROTOCOL = "Sec-WebSocket-Protocol";

  /**
   * The HTTP <a href="https://datatracker.ietf.org/doc/html/rfc6455">{@code
   * Sec-WebSocket-Version}</a> header field name.
   *

These headers preserve information about the original request that would otherwise be lost:

* **X-Forwarded-For**: The original client's IP address
* **X-Forwarded-Proto**: The original protocol (`https`)
* **X-Forwarded-Host**: The original host (`mysuperapp.com`)

When **FastAPI CLI** is configured with `--forwarded-allow-ips`, it trusts these headers and uses them, for example to generate the correct URLs in redirects.

    private final String targetHost;

    private byte[] preauthIntegrityHash;

    // Multi-channel support
    private ChannelManager channelManager;

    // Witness protocol support fields
    private WitnessClient witnessClient;
    private boolean witnessEnabled;

    // SMB3 lease support
    private LeaseManager leaseManager;

    // SMB3 persistent handle support

import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpHead;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.client.utils.DateUtils;
import org.apache.http.config.Lookup;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;

        @Test
        @DisplayName("Should handle negative values in buffer")
        void shouldHandleNegativeValuesInBuffer() throws SMBProtocolDecodingException {
            // Given - negative values (treated as unsigned in protocol)
            ByteBuffer buffer = ByteBuffer.allocate(24);
            buffer.order(ByteOrder.LITTLE_ENDIAN);
            buffer.putLong(-1L);
            buffer.putLong(-1L);
            buffer.putInt(-1);

this},abort:function(e){var t=e||u;return c&&c.abort(t),l(0,t),this}};if(x.promise(T),v.url=((e||v.url||Et.href)+"").replace($t,Et.protocol+"//"),v.type=t.method||t.type||v.method||v.type,v.dataTypes=(v.dataType||"*").toLowerCase().match(D)||[""],null==v.crossDomain){r=C.createElement("a");try{r.href=v.url,r.href=r.href,v.crossDomain=Xt.protocol+"//"+Xt.host!=r.protocol+"//"+r.host}catch(e){v.crossDomain=!0}}if(v.data&&v.processData&&"string"!=typeof v.data&&(v.data=ce.param(v.data,v.traditional))...

                    return negotiate2(r);
                } else if (r.getDialectRevision() != Smb2Constants.SMB2_DIALECT_0202) {
                    throw new CIFSException("Server returned invalid dialect verison in multi protocol negotiation");
                }

                final int permits = r.getInitialCredits();
                if (permits > 0) {
                    this.credits.release(permits);
                }

Persistent handles (also known as durable handles) allow SMB3 connections to survive network disconnections, server reboots, and client reconnections. This feature is critical for enterprise reliability and seamless failover scenarios.

## 2. Protocol Specification Reference

- **MS-SMB2 Section 2.2.13.2.3**: SMB2_CREATE_DURABLE_HANDLE_REQUEST
- **MS-SMB2 Section 2.2.13.2.4**: SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2

 * Explorer. The users credentials with be negotiated using NTLM SSP if
 * the client is Microsoft Internet Explorer.
 */

/**
 * A servlet that provides network browsing capabilities for SMB shares using SMB1 protocol.
 * This servlet allows users to browse SMB network resources through a web interface.
 */
public class NetworkExplorer extends HttpServlet {

    /**
     * Default constructor.
     */