How to use

getUGI

method

in

org.apache.hadoop.hdfs.server.common.JspHelper

/** Same as getUGI(null, request, conf). */
public static UserGroupInformation getUGI(HttpServletRequest request,
  Configuration conf) throws IOException {
 return getUGI(null, request, conf);
}

/** Same as getUGI(context, request, conf, KERBEROS_SSL, true). */
public static UserGroupInformation getUGI(ServletContext context,
  HttpServletRequest request, Configuration conf) throws IOException {
 return getUGI(context, request, conf, AuthenticationMethod.KERBEROS_SSL, true);
}

@Override
public UserGroupInformation getValue(final HttpContext context) {
 final Configuration conf = (Configuration) servletcontext
   .getAttribute(JspHelper.CURRENT_CONF);
 try {
  return JspHelper.getUGI(servletcontext, request, conf,
    AuthenticationMethod.KERBEROS, false);
 } catch (IOException e) {
  throw new SecurityException(
    SecurityUtil.FAILED_TO_GET_UGI_MSG_HEADER + " " + e, e);
 }
}

 protected UserGroupInformation getUGI(HttpServletRequest request,
                    Configuration conf) throws IOException {
  return JspHelper.getUGI(getServletContext(), request, conf);
 }
}

/** Same as getUGI(null, request, conf). */
public static UserGroupInformation getUGI(HttpServletRequest request,
  Configuration conf) throws IOException {
 return getUGI(null, request, conf);
}

/** Same as getUGI(context, request, conf, KERBEROS_SSL, true). */
public static UserGroupInformation getUGI(ServletContext context,
  HttpServletRequest request, Configuration conf) throws IOException {
 return getUGI(context, request, conf, AuthenticationMethod.KERBEROS_SSL, true);
}

/** Same as getUGI(null, request, conf). */
public static UserGroupInformation getUGI(HttpServletRequest request,
  Configuration conf) throws IOException {
 return getUGI(null, request, conf);
}

/** Same as getUGI(context, request, conf, KERBEROS_SSL, true). */
public static UserGroupInformation getUGI(ServletContext context,
  HttpServletRequest request, Configuration conf) throws IOException {
 return getUGI(context, request, conf, AuthenticationMethod.KERBEROS_SSL, true);
}

@Override
public UserGroupInformation getValue(final HttpContext context) {
 final Configuration conf = (Configuration) servletcontext
   .getAttribute(JspHelper.CURRENT_CONF);
 try {
  return JspHelper.getUGI(servletcontext, request, conf,
    AuthenticationMethod.KERBEROS, false);
 } catch (IOException e) {
  throw new SecurityException(
    SecurityUtil.FAILED_TO_GET_UGI_MSG_HEADER + " " + e, e);
 }
}

@Override
public UserGroupInformation getValue(final HttpContext context) {
 final Configuration conf = (Configuration) servletcontext
   .getAttribute(JspHelper.CURRENT_CONF);
 try {
  return JspHelper.getUGI(servletcontext, request, conf,
    AuthenticationMethod.KERBEROS, false);
 } catch (IOException e) {
  throw new SecurityException(
    SecurityUtil.FAILED_TO_GET_UGI_MSG_HEADER + " " + e, e);
 }
}

 protected UserGroupInformation getUGI(HttpServletRequest request,
                    Configuration conf) throws IOException {
  return JspHelper.getUGI(getServletContext(), request, conf);
 }
}

 protected UserGroupInformation getUGI(HttpServletRequest request,
                    Configuration conf) throws IOException {
  return JspHelper.getUGI(getServletContext(), request, conf);
 }
}

@Test
public void testGetUgi() throws IOException {
 conf.set(DFSConfigKeys.FS_DEFAULT_NAME_KEY, "hdfs://localhost:4321/");
 HttpServletRequest request = mock(HttpServletRequest.class);
 String user = "TheDoctor";
 Text userText = new Text(user);
 DelegationTokenIdentifier dtId = new DelegationTokenIdentifier(userText,
   userText, null);
 Token<DelegationTokenIdentifier> token = new Token<DelegationTokenIdentifier>(
   dtId, new DummySecretManager(0, 0, 0, 0));
 String tokenString = token.encodeToUrlString();
 when(request.getParameter(JspHelper.DELEGATION_PARAMETER_NAME)).thenReturn(
   tokenString);
 when(request.getRemoteUser()).thenReturn(user);
 conf.set(DFSConfigKeys.HADOOP_SECURITY_AUTHENTICATION, "kerberos");
 UserGroupInformation.setConfiguration(conf);
 InetSocketAddress serviceAddr = NameNode.getAddress(conf);
 Text tokenService = new Text(serviceAddr.getAddress().getHostAddress()
   + ":" + serviceAddr.getPort());
 UserGroupInformation ugi = JspHelper.getUGI(request, conf);
 Token<? extends TokenIdentifier> tokenInUgi = ugi.getTokens().iterator()
   .next();
 Assert.assertEquals(tokenInUgi.getService(), tokenService);
}

private void verifyServiceInToken(ServletContext context,
  HttpServletRequest request, String expected) throws IOException {
 UserGroupInformation ugi = JspHelper.getUGI(context, request, conf);
 Token<? extends TokenIdentifier> tokenInUgi = ugi.getTokens().iterator()
   .next();
 Assert.assertEquals(expected, tokenInUgi.getService().toString());
}

 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad request allowed");
} catch (IOException ioe) {
 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad request allowed");
} catch (IOException ioe) {
ugi = JspHelper.getUGI(context, request, conf);
Assert.assertNull(ugi.getRealUser());
Assert.assertEquals(ugi.getShortUserName(), realUser);
ugi = JspHelper.getUGI(context, request, conf);
Assert.assertNull(ugi.getRealUser());
Assert.assertEquals(ugi.getShortUserName(), realUser);
 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad request allowed");
} catch (IOException ioe) {

when(request.getParameter(JspHelper.DELEGATION_PARAMETER_NAME)).thenReturn(
  tokenString);
ugi = JspHelper.getUGI(context, request, conf);
Assert.assertNotNull(ugi.getRealUser());
Assert.assertEquals(ugi.getRealUser().getShortUserName(), realUser);
when(request.getParameter(JspHelper.DELEGATION_PARAMETER_NAME)).thenReturn(
  tokenString);
ugi = JspHelper.getUGI(context, request, conf);
Assert.assertNotNull(ugi.getRealUser());
Assert.assertEquals(ugi.getRealUser().getShortUserName(), realUser);
when(request.getParameter(JspHelper.DELEGATION_PARAMETER_NAME)).thenReturn(
  tokenString);
ugi = JspHelper.getUGI(context, request, conf);
Assert.assertNotNull(ugi.getRealUser());
Assert.assertEquals(ugi.getRealUser().getShortUserName(), realUser);
when(request.getParameter(JspHelper.DELEGATION_PARAMETER_NAME)).thenReturn(
  tokenString);
ugi = JspHelper.getUGI(context, request, conf);
Assert.assertNotNull(ugi.getRealUser());
Assert.assertEquals(ugi.getRealUser().getShortUserName(), realUser);
  tokenString);
try {
 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad request allowed");
} catch (IOException ioe) {

 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad request allowed");
} catch (IOException ioe) {
 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad request allowed");
} catch (IOException ioe) {
ugi = JspHelper.getUGI(context, request, conf);
Assert.assertNotNull(ugi.getRealUser());
Assert.assertEquals(ugi.getRealUser().getShortUserName(), realUser);
ugi = JspHelper.getUGI(context, request, conf);
Assert.assertNotNull(ugi.getRealUser());
Assert.assertEquals(ugi.getRealUser().getShortUserName(), realUser);
 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad request allowed");
} catch (IOException ioe) {
 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad proxy request allowed");
} catch (AuthorizationException ae) {
 JspHelper.getUGI(context, request, conf);
 Assert.fail("bad proxy request allowed");
} catch (AuthorizationException ae) {