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Posted to issues@nifi.apache.org by GitBox <gi...@apache.org> on 2020/02/27 21:35:07 UTC
[GitHub] [nifi] jtstorck commented on a change in pull request #4095: NIFI-7018: Initial commit of processors extending AbstractHadoopProce…
jtstorck commented on a change in pull request #4095: NIFI-7018: Initial commit of processors extending AbstractHadoopProce…
URL: https://github.com/apache/nifi/pull/4095#discussion_r385384759
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File path: nifi-nar-bundles/nifi-extension-utils/nifi-hadoop-utils/src/main/java/org/apache/nifi/hadoop/SecurityUtil.java
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@@ -69,6 +79,37 @@ public static synchronized UserGroupInformation loginKerberos(final Configuratio
return UserGroupInformation.getCurrentUser();
}
+ public static synchronized UserGroupInformation loginKerberosWithPassword(final Configuration config, final String principal, final String password) throws IOException {
+ Validate.notNull(config);
+ Validate.notNull(principal);
+ Validate.notNull(password);
+
+ KerberosPasswordUser kerberosPasswordUser = new KerberosPasswordUser(principal, password);
+ return getUgiForKerberosUser(config, kerberosPasswordUser);
+ }
+
+ public static synchronized UserGroupInformation getUgiForKerberosUser(final Configuration config, final KerberosUser kerberosUser) throws IOException {
+ UserGroupInformation.setConfiguration(config);
+ try {
+ if (kerberosUser.isLoggedIn()) {
+ kerberosUser.checkTGTAndRelogin();
+ } else {
+ kerberosUser.login();
+ }
+ return kerberosUser.doAs((PrivilegedExceptionAction<UserGroupInformation>) () -> {
+ AccessControlContext context = AccessController.getContext();
+ Subject subject = Subject.getSubject(context);
+ Validate.notEmpty(
+ subject.getPrincipals(KerberosPrincipal.class).stream().filter(p -> p.getName().startsWith(kerberosUser.getPrincipal())).collect(Collectors.toSet()),
+ "No Subject was found matching the given principal");
+ return UserGroupInformation.getUGIFromSubject(subject);
+ });
+ } catch (PrivilegedActionException | LoginException e) {
+ throw new IOException("Unable to acquire UGI for KerberosUser: " + e.getLocalizedMessage(),
Review comment:
Updated the code to use the message from the wrapped exception, and split the unified catch into two distinct catch clauses.
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