我正在编写一个java程序来访问hadoop jobhistory服务以检索一些信息。
我正在使用 HTTPClient 进行 HttpGet 调用。我需要从 key 表文件(我的 ~/.ssh/文件夹中有该文件)登录,而不是输入用户名和密码。
我的问题是:如何从 HTTPClient 中的 keytab 登录?
这是我设置 HTTPClient 的方法
System.setProperty("java.security.krb5.conf", "krb5.conf");
System.setProperty("sun.security.krb5.debug", "true");
System.setProperty("javax.security.auth.useSubjectCredsOnly", "false");
System.setProperty("java.security.krb5.realm", prop.getProperty("krb5.realm"));
System.setProperty("java.security.krb5.kdc", prop.getProperty("krb5.kdc"));
PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
cm.setMaxTotal(200);
cm.setDefaultMaxPerRoute(100);
//TODO login from keytab ?
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials("DUMMY", null));
Lookup<AuthSchemeProvider> authRegistry = RegistryBuilder.<AuthSchemeProvider>create()
.register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory())
.build();
httpClient = HttpClients.custom().setDefaultCredentialsProvider(credsProvider)
.setDefaultAuthSchemeRegistry(authRegistry)
.setConnectionManager(cm)
.build();
HttpResponse response = httpClient.execute(request);
有趣的是这段代码可以在我的 IntelliJ 中成功运行。但是当我从命令行构建并运行它后,它会显示信息要求我输入用户名和密码。
我是身份验证的新手,希望有人能提供帮助。非常感谢。
最佳答案
HttpClientBuilder builder = HttpClientBuilder.create();
Lookup<AuthSchemeProvider> authSchemeRegistry = RegistryBuilder.<AuthSchemeProvider>create()
.register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory(true)).build();
builder.setDefaultAuthSchemeRegistry(authSchemeRegistry);
BasicCredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(new AuthScope(null, -1, null), new Credentials() {
@Override
public Principal getUserPrincipal() {
return null;
}
@Override
public String getPassword() {
return null;
}
});
builder.setDefaultCredentialsProvider(credentialsProvider);
final HttpClient httpClient = builder.build();
final Subject subj = new Subject();
Krb5LoginModule krb5 = new Krb5LoginModule();
Map<String, String> options = new HashMap<>();
options.put("doNotPrompt", "true");
options.put("storeKey", "true");
options.put("useKeyTab", "true");
options.put("useTicketCache", "true");
options.put("keyTab", keytabFilePath); //Path to keytab file
options.put("principal", principal); //Principal name
options.put("debug", "true");
krb5.initialize(subj, null, null, options);
krb5.login();
krb5.commit();
HttpResponse response = Subject.doAs(subj, new PrivilegedExceptionAction<HttpResponse>() {
@Override
public HttpResponse run() throws Exception {
return httpClient.execute(request);
}
});
关于security - HTTPClient从keytab登录访问hadoop jobhistory服务,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32683623/