Github user joshelser commented on a diff in the pull request:
https://github.com/apache/accumulo/pull/273#discussion_r124118903
--- Diff:
test/src/test/java/org/apache/accumulo/test/functional/KerberosProxyIT.java ---
@@ -463,6 +477,56 @@ public void testMismatchPrincipals() throws Exception {
}
}
+ @Test
+ public void proxiedUserAccessWithoutAccumuloProxy() throws Exception {
+ final String tableName = getUniqueNames(1)[0];
+ ClusterUser rootUser = kdc.getRootUser();
+ final UserGroupInformation rootUgi =
UserGroupInformation.loginUserFromKeytabAndReturnUGI(rootUser.getPrincipal(),
rootUser.getKeytab().getAbsolutePath());
+ final UserGroupInformation realUgi =
UserGroupInformation.loginUserFromKeytabAndReturnUGI(proxyPrincipal,
proxyKeytab.getAbsolutePath());
+ final String userWithoutCredentials = kdc.qualifyUser(PROXIED_USER);
+ final UserGroupInformation proxyUser =
UserGroupInformation.createProxyUser(userWithoutCredentials, realUgi);
+
+ // Create a table and user, grant permission to our user to read that
table.
+ rootUgi.doAs(new PrivilegedExceptionAction<Void>() {
+ @Override
+ public Void run() throws Exception {
+ ZooKeeperInstance inst = new
ZooKeeperInstance(mac.getClientConfig());
+ Connector conn = inst.getConnector(rootUgi.getUserName(), new
KerberosToken());
+ conn.tableOperations().create(tableName);
+ conn.securityOperations().createLocalUser(userWithoutCredentials,
new PasswordToken("ignored"));
+
conn.securityOperations().grantTablePermission(userWithoutCredentials,
tableName, TablePermission.READ);
+ return null;
+ }
+ });
+ realUgi.doAs(new PrivilegedExceptionAction<Void>() {
+ @Override
+ public Void run() throws Exception {
+ ZooKeeperInstance inst = new
ZooKeeperInstance(mac.getClientConfig());
+ Connector conn = inst.getConnector(proxyPrincipal, new
KerberosToken());
+ try {
+ Scanner s = conn.createScanner(tableName, Authorizations.EMPTY);
+ s.iterator().hasNext();
+ Assert.fail("Expected to see an exception");
+ } catch (RuntimeException e) {
+ int numSecurityExceptionsSeen =
Iterables.size(Iterables.filter(Throwables.getCausalChain(e),
+
org.apache.accumulo.core.client.AccumuloSecurityException.class));
+ assertTrue("Expected to see at least one
AccumuloSecurityException, but saw: " + Throwables.getStackTraceAsString(e),
numSecurityExceptionsSeen > 0);
+ }
+ return null;
+ }
+ });
+ proxyUser.doAs(new PrivilegedExceptionAction<Void>() {
+ @Override
+ public Void run() throws Exception {
+ ZooKeeperInstance inst = new
ZooKeeperInstance(mac.getClientConfig());
+ Connector conn = inst.getConnector(userWithoutCredentials, new
KerberosToken(userWithoutCredentials));
+ Scanner s = conn.createScanner(tableName, Authorizations.EMPTY);
+ assertFalse(s.iterator().hasNext());
+ return null;
--- End diff --
Sadly, it cannot. It would be a compilation error. We cannot do
`PrivilegedExceptionAction<void>`, only `Void`. As such, we need to have an
explicit return value (it's annoying :D)
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