Package org.apache.hadoop.security.UserGroupInformation

Examples of org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod

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  /**
   * @param ugi A user group information.
   * @return true if delegation token operation is allowed
   */
  private boolean isAllowedDelegationTokenOp(UserGroupInformation ugi) throws IOException {
    AuthenticationMethod authMethod = ugi.getAuthenticationMethod();
    if (authMethod == AuthenticationMethod.PROXY) {
      authMethod = ugi.getRealUser().getAuthenticationMethod();
    }
    if (authMethod != AuthenticationMethod.KERBEROS
        && authMethod != AuthenticationMethod.KERBEROS_SSL
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    User requestUser = RequestContext.getRequestUser();
    AuthenticationProtos.WhoAmIResponse.Builder response =
        AuthenticationProtos.WhoAmIResponse.newBuilder();
    if (requestUser != null) {
      response.setUsername(requestUser.getShortName());
      AuthenticationMethod method = requestUser.getUGI().getAuthenticationMethod();
      if (method != null) {
        response.setAuthMethod(method.name());
      }
    }
    done.run(response.build());
  }
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      try {

      UserGroupInformation ugi = UserGroupInformation.getCurrentUser();

      // Verify that the connection is kerberos authenticated
      AuthenticationMethod authMethod = UserGroupInformation
        .getRealAuthenticationMethod(ugi);
      if (UserGroupInformation.isSecurityEnabled()
          && (authMethod != AuthenticationMethod.KERBEROS)) {
       throw new IOException(
          "Delegation Token can be issued only with kerberos authentication");
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  /**
   *
   * @return true if delegation token operation is allowed
   */
  private boolean isAllowedDelegationTokenOp() throws IOException {
    AuthenticationMethod authMethod = getConnectionAuthenticationMethod();
    if (UserGroupInformation.isSecurityEnabled()
        && (authMethod != AuthenticationMethod.KERBEROS)
        && (authMethod != AuthenticationMethod.KERBEROS_SSL)
        && (authMethod != AuthenticationMethod.CERTIFICATE)) {
      return false;
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   * @throws IOException
   */
  private AuthenticationMethod getConnectionAuthenticationMethod()
      throws IOException {
    UserGroupInformation ugi = getRemoteUser();
    AuthenticationMethod authMethod = ugi.getAuthenticationMethod();
    if (authMethod == AuthenticationMethod.PROXY) {
      authMethod = ugi.getRealUser().getAuthenticationMethod();
    }
    return authMethod;
  }
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  /**
   *
   * @return true if delegation token operation is allowed
   */
  private boolean isAllowedDelegationTokenOp() throws IOException {
    AuthenticationMethod authMethod = getConnectionAuthenticationMethod();
    if (UserGroupInformation.isSecurityEnabled()
        && (authMethod != AuthenticationMethod.KERBEROS)
        && (authMethod != AuthenticationMethod.KERBEROS_SSL)
        && (authMethod != AuthenticationMethod.CERTIFICATE)) {
      return false;
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   * @throws IOException
   */
  private AuthenticationMethod getConnectionAuthenticationMethod()
      throws IOException {
    UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
    AuthenticationMethod authMethod = ugi.getAuthenticationMethod();
    if (authMethod == AuthenticationMethod.PROXY) {
      authMethod = ugi.getRealUser().getAuthenticationMethod();
    }
    return authMethod;
  }
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  }

  @Test
  public void testUGIAuthMethod() throws Exception {
    final UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
    final AuthenticationMethod am = AuthenticationMethod.KERBEROS;
    ugi.setAuthenticationMethod(am);
    Assert.assertEquals(am, ugi.getAuthenticationMethod());
    ugi.doAs(new PrivilegedExceptionAction<Object>() {
      public Object run() throws IOException {
        Assert.assertEquals(am, UserGroupInformation.getCurrentUser()
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  @Test
  public void testUGIAuthMethodInRealUser() throws Exception {
    final UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
    UserGroupInformation proxyUgi = UserGroupInformation.createProxyUser(
        "proxy", ugi);
    final AuthenticationMethod am = AuthenticationMethod.KERBEROS;
    ugi.setAuthenticationMethod(am);
    Assert.assertEquals(am, ugi.getAuthenticationMethod());
    Assert.assertEquals(AuthenticationMethod.PROXY,
                        proxyUgi.getAuthenticationMethod());
    proxyUgi.doAs(new PrivilegedExceptionAction<Object>() {
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      }
    }

    if (ugi != null) {
      // dump login information
      AuthenticationMethod authMethod = ugi.getAuthenticationMethod();
      LOG.info("Auth method: {}", authMethod);
      LOG.info(" User name: {}", ugi.getUserName());
      LOG.info(" Using keytab: {}", ugi.isFromKeytab());
      if (authMethod == AuthenticationMethod.PROXY) {
        UserGroupInformation superUser;
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