HttpClient为Kerberos身份验证设置凭据
我正在尝试使用kerberos / HTTP主机进行身份验证。使用Apache HttpClient作为我的客户端-
以及此源的略微修改版本。
我的Kerberos身份验证非常顺利，我希望知道如何以编程方式设置登录凭据。目前，凭据是通过控制台手动输入的，但是我想在运行时选择它。[实际上，正如我希望对大量用户进行自动化和负载测试的服务器。]。
编辑：这是相关部分的代码片段：
.. NegotiateSchemeFactory nsf = new NegotiateSchemeFactory();
httpclient.getAuthSchemes().register(AuthPolicy.SPNEGO, nsf);
Credentials use_jaas_creds = new Credentials() {
public String getPassword() {
return null;
}
public Principal getUserPrincipal() {
return null;
}
};
httpclient.getCredentialsProvider().setCredentials(
new AuthScope(null, -1, null),
use_jaas_creds);
HttpUriRequest request = new HttpGet("http://kerberoshost/");
HttpResponse response = httpclient.execute(request);
..
该接口Credentials有两种方法-
getPassword()和和getUserPrincipal()，但是从我进行的一些调试来看，它们似乎根本没有被调用。
我在这里想念什么？静态设置凭据的更简洁方法是什么？
之前曾问过一个非常类似的问题，但是keytabs/ login.conf的破解太麻烦了，对于具有大量用户凭据的自动负载测试而言，不是一个可行的选择。感谢对此的任何帮助。
回答：
由于SPNEGO的原因，httpclient不会使用您发布的代码段（凭据类的东西设置）进行身份验证。
您可以使用DoAs + CallBackhandler在运行时传递用户名和密码。
然后，您需要一个login.conf或其中包含以下名称的任何名称：
KrbLogin{ com.sun.security.auth.module.Krb5LoginModule required doNotPrompt=false debug=true useTicketCache=false;
};
您可以将名称从“ KrbLogin”更改为所需的名称（请记住在Java代码中使用相同的名称）
并使用java系统属性进行设置：
System.setProperty("java.security.auth.login.config", "login.conf");或与
-Djava.security.auth.login.config=login.config然后，您需要一个krb5配置文件（通常是krb5.ini或krb5.conf，其中的配置正确）
如果您的工作站（或服务器）已为Kerberos正确配置，则该类应按原样工作（使用适当的文件login.conf和krb5.ini），我使用了httpclient
4.3.3和Java 1.7对其进行了测试：
import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthSchemeProvider;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.Credentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.AuthSchemes;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.impl.auth.SPNegoSchemeFactory;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import javax.security.auth.Subject;
import javax.security.auth.callback.*;
import javax.security.auth.login.LoginContext;
import javax.security.auth.login.LoginException;
import java.io.IOException;
import java.security.AccessController;
import java.security.Principal;
import java.security.PrivilegedAction;
import java.util.Set;
public class HttpClientKerberosDoAS {
public static void main(String[] args) throws Exception {
System.setProperty("java.security.auth.login.config", "login.conf");
System.setProperty("java.security.krb5.conf", "krb5.conf");
System.setProperty("javax.security.auth.useSubjectCredsOnly", "false");
String user = "";
String password = "";
String url = "";
if (args.length == 3) {
user = args[0];
password = args[1];
url = args[2];
HttpClientKerberosDoAS kcd = new HttpClientKerberosDoAS();
System.out.println("Loggin in with user [" + user + "] password [" + password + "] ");
kcd.test(user, password, url);
} else {
System.out.println("run with User Password URL");
}
}
public void test(String user, String password, final String url) {
try {
LoginContext loginCOntext = new LoginContext("KrbLogin", new KerberosCallBackHandler(user, password));
loginCOntext.login();
PrivilegedAction sendAction = new PrivilegedAction() {
@Override
public Object run() {
try {
Subject current = Subject.getSubject(AccessController.getContext());
System.out.println("----------------------------------------");
Set<Principal> principals = current.getPrincipals();
for (Principal next : principals) {
System.out.println("DOAS Principal: " + next.getName());
}
System.out.println("----------------------------------------");
call(url);
} catch (IOException e) {
e.printStackTrace();
}
return true;
}
};
Subject.doAs(loginCOntext.getSubject(), sendAction);
} catch (LoginException le) {
le.printStackTrace();
}
}
private void call(String url) throws IOException {
HttpClient httpclient = getHttpClient();
try {
HttpUriRequest request = new HttpGet(url);
HttpResponse response = httpclient.execute(request);
HttpEntity entity = response.getEntity();
System.out.println("----------------------------------------");
System.out.println("STATUS >> " + response.getStatusLine());
if (entity != null) {
System.out.println("RESULT >> " + EntityUtils.toString(entity));
}
System.out.println("----------------------------------------");
EntityUtils.consume(entity);
} finally {
httpclient.getConnectionManager().shutdown();
}
}
private HttpClient getHttpClient() {
Credentials use_jaas_creds = new Credentials() {
public String getPassword() {
return null;
}
public Principal getUserPrincipal() {
return null;
}
};
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(new AuthScope(null, -1, null), use_jaas_creds);
Registry<AuthSchemeProvider> authSchemeRegistry = RegistryBuilder.<AuthSchemeProvider>create().register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory(true)).build();
CloseableHttpClient httpclient = HttpClients.custom().setDefaultAuthSchemeRegistry(authSchemeRegistry).setDefaultCredentialsProvider(credsProvider).build();
return httpclient;
}
class KerberosCallBackHandler implements CallbackHandler {
private final String user;
private final String password;
public KerberosCallBackHandler(String user, String password) {
this.user = user;
this.password = password;
}
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
for (Callback callback : callbacks) {
if (callback instanceof NameCallback) {
NameCallback nc = (NameCallback) callback;
nc.setName(user);
} else if (callback instanceof PasswordCallback) {
PasswordCallback pc = (PasswordCallback) callback;
pc.setPassword(password.toCharArray());
} else {
throw new UnsupportedCallbackException(callback, "Unknown Callback");
}
}
}
}
}
注意：
您可以使用：
System.setProperty("sun.security.krb5.debug", "true");要么：
-Dsun.security.krb5.debug=true调查问题。
以上是 HttpClient为Kerberos身份验证设置凭据 的全部内容， 来源链接： utcz.com/qa/420791.html
