import org.apache.hadoop.security.token.delegation.web.PseudoDelegationTokenAuthenticationHandler; //导入依赖的package包/类
@Override
protected Properties getConfiguration(String configPrefix,
    FilterConfig filterConfig) {
  Properties props = new Properties();
  Configuration conf = KMSWebApp.getConfiguration();
  for (Map.Entry<String, String> entry : conf) {
    String name = entry.getKey();
    if (name.startsWith(CONFIG_PREFIX)) {
      String value = conf.get(name);
      name = name.substring(CONFIG_PREFIX.length());
      props.setProperty(name, value);
    }
  }
  String authType = props.getProperty(AUTH_TYPE);
  if (authType.equals(PseudoAuthenticationHandler.TYPE)) {
    props.setProperty(AUTH_TYPE,
        PseudoDelegationTokenAuthenticationHandler.class.getName());
  } else if (authType.equals(KerberosAuthenticationHandler.TYPE)) {
    props.setProperty(AUTH_TYPE,
        KerberosDelegationTokenAuthenticationHandler.class.getName());
  }
  props.setProperty(DelegationTokenAuthenticationHandler.TOKEN_KIND,
      KMSClientProvider.TOKEN_KIND);
  return props;
}
 

import org.apache.hadoop.security.token.delegation.web.PseudoDelegationTokenAuthenticationHandler; //导入依赖的package包/类
@Override
protected Properties getConfiguration(String configPrefix,
    FilterConfig filterConfig) {
  Properties props = new Properties();
  Configuration conf = KMSWebApp.getConfiguration();
  for (Map.Entry<String, String> entry : conf) {
    String name = entry.getKey();
    if (name.startsWith(CONFIG_PREFIX)) {
      String value = conf.get(name);
      name = name.substring(CONFIG_PREFIX.length());
      props.setProperty(name, value);
    }
  }
  String authType = props.getProperty(AUTH_TYPE);
  if (authType.equals(PseudoAuthenticationHandler.TYPE)) {
    props.setProperty(AUTH_TYPE,
        PseudoDelegationTokenAuthenticationHandler.class.getName());
  } else if (authType.equals(KerberosAuthenticationHandler.TYPE)) {
    props.setProperty(AUTH_TYPE,
        KerberosDelegationTokenAuthenticationHandler.class.getName());
  }
  props.setProperty(DelegationTokenAuthenticationHandler.TOKEN_KIND,
      KMSDelegationToken.TOKEN_KIND_STR);
  return props;
}
 

import org.apache.hadoop.security.token.delegation.web.PseudoDelegationTokenAuthenticationHandler; //导入依赖的package包/类
@Override
protected Properties getConfiguration(String configPrefix,
                                      FilterConfig filterConfig) throws ServletException {
  Properties properties = new Properties();
  MapContext mapContext = SqoopConfiguration.getInstance().getContext();
  String type = mapContext.getString(
      SecurityConstants.AUTHENTICATION_TYPE,
      SecurityConstants.TYPE.SIMPLE.name()).trim();

  if (type.equalsIgnoreCase(SecurityConstants.TYPE.KERBEROS.name())) {
    properties.setProperty(AUTH_TYPE, KerberosDelegationTokenAuthenticationHandler.class.getName());

    String keytab = mapContext.getString(
            SecurityConstants.AUTHENTICATION_KERBEROS_HTTP_KEYTAB).trim();
    if (keytab.length() == 0) {
      throw new SqoopException(SecurityError.AUTH_0005,
              SecurityConstants.AUTHENTICATION_KERBEROS_HTTP_KEYTAB);
    }

    String principal = mapContext.getString(
            SecurityConstants.AUTHENTICATION_KERBEROS_HTTP_PRINCIPAL).trim();
    if (principal.length() == 0) {
      throw new SqoopException(SecurityError.AUTH_0006,
              SecurityConstants.AUTHENTICATION_KERBEROS_HTTP_PRINCIPAL);
    }

    String hostPrincipal = "";
    try {
      hostPrincipal = SecurityUtil.getServerPrincipal(principal, "0.0.0.0");
    } catch (IOException e) {
      throw new SqoopException(SecurityError.AUTH_0006,
              SecurityConstants.AUTHENTICATION_KERBEROS_HTTP_PRINCIPAL);
    }

    properties.setProperty(KerberosAuthenticationHandler.PRINCIPAL, hostPrincipal);
    properties.setProperty(KerberosAuthenticationHandler.KEYTAB, keytab);
  } else if (type.equalsIgnoreCase(SecurityConstants.TYPE.SIMPLE.name())) {
    properties.setProperty(AUTH_TYPE, PseudoDelegationTokenAuthenticationHandler.class.getName());
    properties.setProperty(PseudoAuthenticationHandler.ANONYMOUS_ALLOWED,
        mapContext.getString(SecurityConstants.AUTHENTICATION_ANONYMOUS, "true").trim());
  } else {
    throw new SqoopException(SecurityError.AUTH_0004, type);
  }

  properties.setProperty(DelegationTokenAuthenticationHandler.TOKEN_KIND,
          SecurityConstants.TOKEN_KIND);

  return properties;
}