Digest Auth 摘要认证
1、该代码展示了使用Apache HttpClient库进行HTTP请求，并处理基于MD5的HTTP Digest认证的过程。 Digests类实现了MD5加密算法，HttpUtils类处理了GET、POST、PUT和DELETE方法的请求，包括设置请求头、生成授权信息和处理响应。
2、请求流程
2.1.发送一个请求
2.2.服务器返回401响应头,要求输入用户凭据（建立通信，发起请求。如果返回401，继续下一次请求。重新设置响应，并获取随机数，通过md5加密返回）
2.3.输入凭据后再发送请求
2.4.服务端验证通过后返回数据
2.4代码示例：本案例使用xml请求并返回xml数据响应，json请求同理
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpmime</artifactId>
<version>4.5</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>4.4.1</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.8.1</version>
</dependency>
package com.ywb.common.utils.http; import com.ywb.common.constant.Constants;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import javax.net.ssl.*;
import java.io.*;
import java.net.ConnectException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.net.URLConnection;
import java.security.cert.X509Certificate; import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.Header;
import org.apache.http.HeaderElement;
import org.apache.http.HttpEntity;
import org.apache.http.HttpStatus;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils; import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.HashMap; /**
* 通用http发送方法
*
* @author ywb
*/
public class HttpUtils {
private static final Logger log = LoggerFactory.getLogger(HttpUtils.class); /**
* 向指定 URL 发送GET方法的请求
*
* @param url 发送请求的 URL
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
*/
public static String sendGet(String url, String param) {
return sendGet(url, param, Constants.UTF8);
} /**
* 向指定 URL 发送GET方法的请求
*
* @param url 发送请求的 URL
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
* @param contentType 编码类型
* @return 所代表远程资源的响应结果
*/
public static String sendGet(String url, String param, String contentType) {
StringBuilder result = new StringBuilder();
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
log.info("sendGet - {}", urlNameString);
URL realUrl = new URL(urlNameString);
URLConnection connection = realUrl.openConnection();
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
connection.connect();
in = new BufferedReader(new InputStreamReader(connection.getInputStream(), contentType));
String line;
while ((line = in.readLine()) != null) {
result.append(line);
}
log.info("recv - {}", result);
} catch (ConnectException e) {
log.error("调用HttpUtils.sendGet ConnectException, url=" + url + ",param=" + param, e);
} catch (SocketTimeoutException e) {
log.error("调用HttpUtils.sendGet SocketTimeoutException, url=" + url + ",param=" + param, e);
} catch (IOException e) {
log.error("调用HttpUtils.sendGet IOException, url=" + url + ",param=" + param, e);
} catch (Exception e) {
log.error("调用HttpsUtil.sendGet Exception, url=" + url + ",param=" + param, e);
} finally {
try {
if (in != null) {
in.close();
}
} catch (Exception ex) {
log.error("调用in.close Exception, url=" + url + ",param=" + param, ex);
}
}
return result.toString();
} /**
* 向指定 URL 发送POST方法的请求
*
* @param url 发送请求的 URL
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
*/
public static String sendPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
StringBuilder result = new StringBuilder();
try {
String urlNameString = url;
log.info("sendPost - {}", urlNameString);
URL realUrl = new URL(urlNameString);
URLConnection conn = realUrl.openConnection();
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
conn.setRequestProperty("Accept-Charset", "utf-8");
conn.setRequestProperty("contentType", "utf-8");
conn.setDoOutput(true);
conn.setDoInput(true);
out = new PrintWriter(conn.getOutputStream());
out.print(param);
out.flush();
in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
String line;
while ((line = in.readLine()) != null) {
result.append(line);
}
log.info("recv - {}", result);
} catch (ConnectException e) {
log.error("调用HttpUtils.sendPost ConnectException, url=" + url + ",param=" + param, e);
} catch (SocketTimeoutException e) {
log.error("调用HttpUtils.sendPost SocketTimeoutException, url=" + url + ",param=" + param, e);
} catch (IOException e) {
log.error("调用HttpUtils.sendPost IOException, url=" + url + ",param=" + param, e);
} catch (Exception e) {
log.error("调用HttpsUtil.sendPost Exception, url=" + url + ",param=" + param, e);
} finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException ex) {
log.error("调用in.close Exception, url=" + url + ",param=" + param, ex);
}
}
return result.toString();
} public static String sendSSLPost(String url, String param) {
StringBuilder result = new StringBuilder();
String urlNameString = url + "?" + param;
try {
log.info("sendSSLPost - {}", urlNameString);
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, new TrustManager[]{new TrustAnyTrustManager()}, new java.security.SecureRandom());
URL console = new URL(urlNameString);
HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
conn.setRequestProperty("Accept-Charset", "utf-8");
conn.setRequestProperty("contentType", "utf-8");
conn.setDoOutput(true);
conn.setDoInput(true); conn.setSSLSocketFactory(sc.getSocketFactory());
conn.setHostnameVerifier(new TrustAnyHostnameVerifier());
conn.connect();
InputStream is = conn.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String ret = "";
while ((ret = br.readLine()) != null) {
if (ret != null && !"".equals(ret.trim())) {
result.append(new String(ret.getBytes("ISO-8859-1"), "utf-8"));
}
}
log.info("recv - {}", result);
conn.disconnect();
br.close();
} catch (ConnectException e) {
log.error("调用HttpUtils.sendSSLPost ConnectException, url=" + url + ",param=" + param, e);
} catch (SocketTimeoutException e) {
log.error("调用HttpUtils.sendSSLPost SocketTimeoutException, url=" + url + ",param=" + param, e);
} catch (IOException e) {
log.error("调用HttpUtils.sendSSLPost IOException, url=" + url + ",param=" + param, e);
} catch (Exception e) {
log.error("调用HttpsUtil.sendSSLPost Exception, url=" + url + ",param=" + param, e);
}
return result.toString();
} /**
* 摘要认证 两次请求
*
* @param url
* @return 返回结果
*/
public static String doPostDigest(String url, String uri, String username, String password, String requestXml) {
CloseableHttpClient httpClient = null;
CloseableHttpResponse response = null;
HttpPost httpPost = null;
String strResponse = null;
try {
httpClient = HttpClients.createDefault();
// httpClient = new SSLClient();
httpPost = new HttpPost(url);
// 构造请求头
httpPost.setHeader("Content-Type", "application/xml");
httpPost.setHeader("X-Requested-With", "XMLHttpRequest");
httpPost.addHeader("Cache-Control", "no-cache"); //设置缓存
httpPost.setHeader("Connection", "Close"); RequestConfig.Builder builder = RequestConfig.custom();
builder.setSocketTimeout(5000); //设置请求时间
builder.setConnectTimeout(8000); //设置超时时间
builder.setRedirectsEnabled(false);//设置是否跳转链接(反向代理)
// 设置 连接 属性
httpPost.setConfig(builder.build());
StringEntity entityss = new StringEntity(requestXml, "utf-8");
httpPost.setEntity(entityss);
// 执行请求
response = httpClient.execute(httpPost);
HttpEntity responseEntity = response.getEntity();
// 检验返回码
int statusCode = response.getStatusLine().getStatusCode();
log.debug("第一次发送摘要认证 Post请求 返回码:{}" + statusCode);
if (401 == statusCode) {
strResponse = EntityUtils.toString(responseEntity, "utf-8");
log.debug("Post请求401返回结果:{}" + strResponse); // 组织参数，发起第二次请求
Header[] headers = response.getHeaders("WWW-Authenticate");
HeaderElement[] elements = headers[0].getElements();
String realm = null;
String qop = null;
String nonce = null;
String opaque = null;
String method = "POST";
for (HeaderElement element : elements) {
if (element.getName().equals("Digest realm")) {
realm = element.getValue();
} else if (element.getName().equals("qop")) {
qop = element.getValue();
} else if (element.getName().equals("nonce")) {
nonce = element.getValue();
} else if (element.getName().equals("opaque")) {
opaque = element.getValue();
}
}
// 以上为 获取第一次请求后返回的 数据
String nc = "00000001";
String cnonce = "uniview";
// 后期变成可配置
String a1 = username + ":" + realm + ":" + password;
String a2 = method + ":" + uri;
String response1 = null;
// 获取 Digest 这个字符串
String backString = response.getFirstHeader("WWW-Authenticate").getValue();
try {
response1 = DigestUtils.md5Hex((DigestUtils.md5Hex(a1.getBytes("UTF-8")) + ":" + nonce + ":" + nc
+ ":" + "uniview" + ":" + qop + ":" + DigestUtils.md5Hex(a2.getBytes("UTF-8"))).getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
log.error("MD5异常:{}" + e.getLocalizedMessage(), e);
}
httpPost.addHeader("Authorization", backString + ",username=\"" + username + "\"" + ",realm=\"" + realm + "\""
+ ",nonce=\"" + nonce + "\"" + ",uri=\"" + uri + "\"" + ",qop=\"" + qop + "\"" + ",nc=\"" + nc + "\""
+ ",cnonce=\"" + cnonce + "\"" + ",response=\"" + response1 + "\"" + ",opaque=\"" + opaque); // 发送第二次请求
response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
int statusCode1 = response.getStatusLine().getStatusCode();
log.debug("第二次发送摘要认证 Post请求 返回码:{}" + statusCode1);
if (HttpStatus.SC_OK == statusCode1) {
strResponse = EntityUtils.toString(entity, StandardCharsets.UTF_8);
log.debug("第二次发送strResponse" + strResponse);
return strResponse;
} else {
strResponse = EntityUtils.toString(entity, StandardCharsets.UTF_8);
log.debug("第二次鉴权认证请求非 200 返回结果:{}" + strResponse);
return strResponse;
}
} else {
strResponse = EntityUtils.toString(responseEntity, StandardCharsets.UTF_8);
log.error("第一次鉴权认证请求非401 返回结果:{}" + strResponse);
}
} catch (Exception e) {
log.error("摘要认证 发送请求失败" + e.getLocalizedMessage(), e);
} finally {
if (null != httpPost) {
httpPost.releaseConnection();
}
if (null != response) {
try {
response.close();
} catch (IOException e) {
log.error("httpResponse流关闭异常：", e);
}
}
if (null != httpClient) {
try {
httpClient.close();
} catch (IOException e) {
log.error("httpClient 流关闭异常：", e);
}
}
}
return strResponse;
} private static class TrustAnyTrustManager implements X509TrustManager {
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType) {
} @Override
public void checkServerTrusted(X509Certificate[] chain, String authType) {
} @Override
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[]{};
}
} private static class TrustAnyHostnameVerifier implements HostnameVerifier {
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
} @Test
public void testHttpPostRaw() {
final String url = "http://18.18.167.120/ISAPI/Traffic/ContentMgmt/Statistic/operator";
final String uri = "/ISAPI/Traffic/ContentMgmt/Statistic/operator";
final String encode = "utf-8";
String requestXml = "<?xml version='1.0' encoding='utf-8'?>" +
"<StatisticOperator>" +
"<operationType>search</operationType>" +
"<searchCond>" +
"<searchID>CAD8E0D6-1480-0001-C0B7-1E50E290140D</searchID>" +
"<timeSpanList><timeSpan>" +
"<startTime>2024-06-21T15:25:10Z</startTime>" +
"<endTime>2024-06-21T15:27:59Z</endTime>" +
"</timeSpan></timeSpanList>" +
"<maxResults>20</maxResults>" +
"<searchResultPosition>0</searchResultPosition>" +
"</searchCond>" +
"</StatisticOperator>";
final HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/x-www-form-urlencoded");
headers.put("X-Requested-With", "XMLHttpRequest"); System.out.println(doPostDigest(url, uri, "admin", "123456", requestXml));
响应结果：
<?xml version="1.0" encoding="UTF-8"?> -<StatisticOperatorResult xmlns="http://www.isapi.org/ver20/XMLSchema" version="2.0"> <statusCode>1</statusCode> <description>OK</description> <searchID>CAD8E0D6-1480-0001-C0B7-1E50E290140D</searchID> <numOfMatches>2</numOfMatches> <totalMatches>2</totalMatches> -<StatisticList> -<Statistic> <ID max="65535" min="1">1</ID> <direction>0</direction> <laneNo>18</laneNo> <vehicleType>0</vehicleType> <startTime>2024-06-21T15:26:03</startTime> <endTime>2024-06-21T15:27:03</endTime> <timePoint>2024-06-21T15:26:03</timePoint> <channel>1</channel> <carFlux>2</carFlux> <smallCarFlux>0</smallCarFlux> <bigCarFlux>1</bigCarFlux> <passerbyFlux>0</passerbyFlux> <averOccpancy>26.2</averOccpancy> <averSpeed>0</averSpeed> <averCarDis>0</averCarDis> <midCarFlux>0</midCarFlux> <averTimeOccupancy>50</averTimeOccupancy> <averQueueLength>35</averQueueLength> <averTimeHeadway>102</averTimeHeadway> <nonmotorFlux>1</nonmotorFlux> </Statistic> -<Statistic> <ID max="65535" min="1">2</ID> <direction>0</direction> <laneNo>19</laneNo> <vehicleType>0</vehicleType> <startTime>2024-06-21T15:26:03</startTime> <endTime>2024-06-21T15:27:03</endTime> <timePoint>2024-06-21T15:26:03</timePoint> <channel>1</channel> <carFlux>0</carFlux> <smallCarFlux>0</smallCarFlux> <bigCarFlux>0</bigCarFlux> <passerbyFlux>0</passerbyFlux> <averOccpancy>0.0</averOccpancy> <averSpeed>0</averSpeed> <averCarDis>0</averCarDis> <midCarFlux>0</midCarFlux> <averTimeOccupancy>0</averTimeOccupancy> <averQueueLength>0</averQueueLength> <averTimeHeadway>0</averTimeHeadway> <nonmotorFlux>0</nonmotorFlux> </Statistic> -<Statistic> <ID max="65535" min="1">3</ID> <direction>0</direction> <laneNo>3</laneNo> <vehicleType>0</vehicleType> <startTime>2024-06-21T15:26:03</startTime> <endTime>2024-06-21T15:27:03</endTime> <timePoint>2024-06-21T15:26:03</timePoint> <channel>1</channel> <carFlux>0</carFlux> <smallCarFlux>0</smallCarFlux> <bigCarFlux>0</bigCarFlux> <passerbyFlux>0</passerbyFlux> <averOccpancy>0.0</averOccpancy> <averSpeed>0</averSpeed> <averCarDis>0</averCarDis> <midCarFlux>0</midCarFlux> <averTimeOccupancy>0</averTimeOccupancy> <averQueueLength>0</averQueueLength> <averTimeHeadway>0</averTimeHeadway> <nonmotorFlux>0</nonmotorFlux> </Statistic> -<Statistic> <ID max="65535" min="1">4</ID> <direction>0</direction> <laneNo>18</laneNo> <vehicleType>0</vehicleType> <startTime>2024-06-21T15:27:03</startTime> <endTime>2024-06-21T15:28:03</endTime> <timePoint>2024-06-21T15:27:03</timePoint> <channel>1</channel> <carFlux>1</carFlux> <smallCarFlux>0</smallCarFlux> <bigCarFlux>1</bigCarFlux> <passerbyFlux>0</passerbyFlux> <averOccpancy>27.0</averOccpancy> <averSpeed>0</averSpeed> <averCarDis>0</averCarDis> <midCarFlux>0</midCarFlux> <averTimeOccupancy>98</averTimeOccupancy> <averQueueLength>35</averQueueLength> <averTimeHeadway>54</averTimeHeadway> <nonmotorFlux>0</nonmotorFlux> </Statistic> -<Statistic> <ID max="65535" min="1">5</ID> <direction>0</direction> <laneNo>19</laneNo> <vehicleType>0</vehicleType> <startTime>2024-06-21T15:27:03</startTime> <endTime>2024-06-21T15:28:03</endTime> <timePoint>2024-06-21T15:27:03</timePoint> <channel>1</channel> <carFlux>0</carFlux> <smallCarFlux>0</smallCarFlux> <bigCarFlux>0</bigCarFlux> <passerbyFlux>0</passerbyFlux> <averOccpancy>0.0</averOccpancy> <averSpeed>0</averSpeed> <averCarDis>0</averCarDis> <midCarFlux>0</midCarFlux> <averTimeOccupancy>0</averTimeOccupancy> <averQueueLength>0</averQueueLength> <averTimeHeadway>0</averTimeHeadway> <nonmotorFlux>0</nonmotorFlux> </Statistic> -<Statistic> <ID max="65535" min="1">6</ID> <direction>0</direction> <laneNo>3</laneNo> <vehicleType>0</vehicleType> <startTime>2024-06-21T15:27:03</startTime> <endTime>2024-06-21T15:28:03</endTime> <timePoint>2024-06-21T15:27:03</timePoint> <channel>1</channel> <carFlux>0</carFlux> <smallCarFlux>0</smallCarFlux> <bigCarFlux>0</bigCarFlux> <passerbyFlux>0</passerbyFlux> <averOccpancy>0.0</averOccpancy> <averSpeed>0</averSpeed> <averCarDis>0</averCarDis> <midCarFlux>0</midCarFlux> <averTimeOccupancy>0</averTimeOccupancy> <averQueueLength>0</averQueueLength> <averTimeHeadway>0</averTimeHeadway> <nonmotorFlux>0</nonmotorFlux> </Statistic> </StatisticList> </StatisticOperatorResult>
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