これが私のプロジェクトで書いたテストクライアントです。このクライアントは、JDK で有効にされるすべての暗号化タイプに依存しています。
ログに次のように表示され、keytab が 256 ビットのデフォルト etype で暗号化されている場合default_tkt_enctypes: 17 16 23 1 3.
次に、jar
http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html
をダウンロードして配置しJDK/jre/lib/security、AES256 ビット暗号化を有効にする必要があります。その後、ログに次のように表示されます。のデフォルトの etypedefault_tkt_enctypes: 18 17 16 23 1 3.
import java.io.IOException;
import java.io.InputStream;
import java.security.Principal;
import java.security.PrivilegedAction;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;
import javax.security.auth.Subject;
import javax.security.auth.kerberos.KerberosPrincipal;
import javax.security.auth.login.AppConfigurationEntry;
import javax.security.auth.login.Configuration;
import javax.security.auth.login.LoginContext;
import org.apache.commons.io.IOUtils;
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.CookieStore;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.AuthSchemes;
import org.apache.http.client.config.CookieSpecs;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.config.Lookup;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.impl.auth.SPNegoSchemeFactory;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.cookie.BasicClientCookie;
ユーティリティ クラス
public class KerberosHttpClient {
private String principal;
private String keyTabLocation;
public KerberosHttpClient() {}
public KerberosHttpClient(String principal, String keyTabLocation) {
super();
this.principal = principal;
this.keyTabLocation = keyTabLocation;
}
public KerberosHttpClient(String principal, String keyTabLocation, String krb5Location) {
this(principal, keyTabLocation);
System.setProperty("java.security.krb5.conf", krb5Location);
}
public KerberosHttpClient(String principal, String keyTabLocation, boolean isDebug) {
this(principal, keyTabLocation);
if (isDebug) {
System.setProperty("sun.security.spnego.debug", "true");
System.setProperty("sun.security.krb5.debug", "true");
}
}
public KerberosHttpClient(String principal, String keyTabLocation, String krb5Location, boolean isDebug) {
this(principal, keyTabLocation, isDebug);
System.setProperty("java.security.krb5.conf", krb5Location);
}
private static HttpClient buildSpengoHttpClient() {
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);
CloseableHttpClient httpClient = builder.build();
return httpClient;
}
public HttpResponse callRestUrl(final String url,final String userId) {
//keyTabLocation = keyTabLocation.substring("file://".length());
System.out.println(String.format("Calling KerberosHttpClient %s %s %s",this.principal, this.keyTabLocation, url));
Configuration config = new Configuration() {
@SuppressWarnings("serial")
@Override
public AppConfigurationEntry[] getAppConfigurationEntry(String name) {
return new AppConfigurationEntry[] { new AppConfigurationEntry("com.sun.security.auth.module.Krb5LoginModule",
AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, new HashMap<String, Object>() {
{
put("useTicketCache", "false");
put("useKeyTab", "true");
put("keyTab", keyTabLocation);
//Krb5 in GSS API needs to be refreshed so it does not throw the error
//Specified version of key is not available
put("refreshKrb5Config", "true");
put("principal", principal);
put("storeKey", "true");
put("doNotPrompt", "true");
put("isInitiator", "true");
put("debug", "true");
}
}) };
}
};
Set<Principal> princ = new HashSet<Principal>(1);
princ.add(new KerberosPrincipal(userId));
Subject sub = new Subject(false, princ, new HashSet<Object>(), new HashSet<Object>());
try {
LoginContext lc = new LoginContext("", sub, null, config);
lc.login();
Subject serviceSubject = lc.getSubject();
return Subject.doAs(serviceSubject, new PrivilegedAction<HttpResponse>() {
HttpResponse httpResponse = null;
@Override
public HttpResponse run() {
try {
HttpUriRequest request = new HttpGet(url);
HttpClient spnegoHttpClient = buildSpengoHttpClient();
httpResponse = spnegoHttpClient.execute(request);
return httpResponse;
} catch (IOException ioe) {
ioe.printStackTrace();
}
return httpResponse;
}
});
} catch (Exception le) {
le.printStackTrace();;
}
return null;
}
public static void main(String[] args) throws UnsupportedOperationException, IOException {
KerberosHttpClient restTest = new KerberosHttpClient("HTTP/test@test.com",
"file://C://Development//test.keytab", true);
HttpResponse response = restTest.callRestUrl("http://test.com/service/employees",
"HTTP/test@test.com");
InputStream is = response.getEntity().getContent();
System.out.println("Status code " + response.getStatusLine().getStatusCode());
System.out.println(Arrays.deepToString(response.getAllHeaders()));
System.out.println(new String(IOUtils.toByteArray(is), "UTF-8"));
}
}