带有HttpURLConnection的NTLM身份验证 [英] NTLM Authentication with HttpURLConnection

问题描述

是否可以通过 HttpURLConnection 实施NTLM身份验证?目前，我已经使用 DefaultHttpClient 和 JCIFSEngine 实现了身份验证方案.(我的灵感是: Android:NTLM身份验证，ksoap和持久连接)

Is there any way to implement NTLM Authentication with HttpURLConnection? Currently I have implemented it with DefaultHttpClient and JCIFSEngine for the authentication scheme. ( My inspiration was : Android: NTLM Authentication, ksoap, and persistent connections)

但是自从Android 6 Apache HTTP客户端删除以来，我一直在寻找解决方案，除了在应用gradle文件中添加 useLibrary'org.apache.http.legacy'之外，因为我想使用改为使用 HttpURLConnection 类.如文档所述，该API效率更高，因为它通过透明的压缩和响应缓存减少了网络使用，并最大程度地降低了功耗.

But since Android 6 Apache HTTP Client Removal, I was looking for a solution besides adding useLibrary 'org.apache.http.legacy' in app gradle file, cause I want to improve my code using HttpURLConnection class instead. As documentation says, this API is more efficient because it reduces network usage through transparent compression and response caching, and minimizes power consumption.

推荐答案

只有在添加库 jcifs .

此示例适用于最新的 jcifs-1.3.18 :

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.Map;

import org.apache.http.impl.auth.NTLMEngineException;

public class TestNTLMConnection {
    public static void main(String[] args) throws UnknownHostException, IOException, NTLMEngineException {
        // Method 1 : authentication in URL
        jcifs.Config.registerSmbURLHandler();
        URL urlRequest = new URL("http://domain%5Cuser:pass@127.0.0.1/");

        // or Method 2 : authentication via System.setProperty()
        // System.setProperty("http.auth.ntlm.domain", "domain");
        // System.setProperty("jcifs.smb.client.domain", "domain");
        // System.setProperty("jcifs.smb.client.username", "user");
        // System.setProperty("jcifs.smb.client.password", "pass");
        // Not verified // System.setProperty("jcifs.netbios.hostname", "host");
        // System.setProperty("java.protocol.handler.pkgs", "jcifs");
        // URL urlRequest = new URL("http://127.0.0.1:8180/simulate_get.php");

        HttpURLConnection conn = (HttpURLConnection) urlRequest.openConnection();

        StringBuilder response = new StringBuilder();

        try {
            InputStream stream = conn.getInputStream();
            BufferedReader in = new BufferedReader(new InputStreamReader(stream));

            String str = "";
            while ((str = in.readLine()) != null) {
                response.append(str);
            }
            in.close();   

            System.out.println(response);
        } catch(IOException err) {
            System.out.println(err);
        } finally {
            Map<String, String> msgResponse = new HashMap<String, String>();

            for (int i = 0;; i++) {
                String headerName = conn.getHeaderFieldKey(i);
                String headerValue = conn.getHeaderField(i);
                if (headerName == null && headerValue == null) {
                    break;
                }
                msgResponse.put(headerName == null ? "Method" : headerName, headerValue);
            }

            System.out.println(msgResponse);
        }
    }
}

警告:jcifs会忽略您在库中定义的 connectTimeout 和 readTimeout ，这就是当主机不响应时连接要经过一段时间才能断开的原因.使用我在此SO线程中描述的代码来避免此错误.

Warning: jcifs ignores the connectTimeout and readTimeout you define with the library, it's the reason why the connection takes ages to break when the host is not responding. Use the code I describe in this SO thread to avoid this bug.

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