Fix dnszone-add name_from_ip server validation

Ticket 1627 contained a (temporary hack-ish) fix for dnszone-add
name_from_ip validation which works fine for CLI. However, when
the command is not proceeded via CLI and sent directly to the
RPC server, the server throws Internal Server Error.

Make sure that the server returns a reasonable error. Also implement
2 unit cases testing this option

https://fedorahosted.org/freeipa/ticket/1941

2 files changed, 56 insertions, 1 deletions

diff --git a/ipaserver/rpcserver.py b/ipaserver/rpcserver.py
index 39cdbcc7f..35a109262 100644
--- a/ipaserver/rpcserver.py
+++ b/ipaserver/rpcserver.py
@@ -231,7 +231,14 @@ class WSGIExecutioner(Executioner):
         finally:
             os.environ['LANG'] = lang
         if name:
-            params = self.Command[name].args_options_2_params(*args, **options)
+            try:
+                params = self.Command[name].args_options_2_params(*args, **options)
+            except Exception, e:
+                self.info(
+                   'exception %s caught when converting options: %s', e.__class__.__name__, str(e)
+                )
+                # get at least some context of what is going on
+                params = options
             if error:
                 self.info('%s: %s(%s): %s', context.principal, name, ', '.join(self.Command[name]._repr_iter(**params)), e.__class__.__name__)
             else:
diff --git a/tests/test_xmlrpc/test_dns_plugin.py b/tests/test_xmlrpc/test_dns_plugin.py
index f9bce61d9..679f285d5 100644
--- a/tests/test_xmlrpc/test_dns_plugin.py
+++ b/tests/test_xmlrpc/test_dns_plugin.py
@@ -29,6 +29,7 @@ from xmlrpc_test import Declarative, fuzzy_digits, fuzzy_uuid
 dnszone1 = u'dnszone.test'
 dnszone2 = u'dnszone2.test'
 revdnszone1 = u'15.142.80.in-addr.arpa.'
+revdnszone1_ip = u'80.142.15.0/24'
 dnsres1 = u'testdnsres'
 
 class test_dns(Declarative):
@@ -551,6 +552,53 @@ class test_dns(Declarative):
 
 
         dict(
+            desc='Try to create a reverse zone from invalid IP',
+            command=(
+                'dnszone_add', [], {
+                    'name_from_ip': u'foo',
+                    'idnssoamname': u'ns1.%s' % dnszone1,
+                    'idnssoarname': u'root.%s' % dnszone1,
+                    'ip_address' : u'1.2.3.4',
+                }
+            ),
+            expected=errors.ValidationError(name='name_from_ip', error='invalid format'),
+        ),
+
+
+        dict(
+            desc='Create reverse from IP %s zone using name_from_ip option' % revdnszone1_ip,
+            command=(
+                'dnszone_add', [], {
+                    'name_from_ip': revdnszone1_ip,
+                    'idnssoamname': u'ns1.%s' % dnszone1,
+                    'idnssoarname': u'root.%s' % dnszone1,
+                    'ip_address' : u'1.2.3.4',
+                }
+            ),
+            expected={
+                'value': revdnszone1,
+                'summary': None,
+                'result': {
+                    'dn': lambda x: DN(x) == \
+                        DN(('idnsname',revdnszone1),('cn','dns'),api.env.basedn),
+                    'idnsname': [revdnszone1],
+                    'idnszoneactive': [u'TRUE'],
+                    'idnssoamname': [u'ns1.%s.' % dnszone1],
+                    'nsrecord': [u'ns1.%s.' % dnszone1],
+                    'idnssoarname': [u'root.%s.' % dnszone1],
+                    'idnssoaserial': [fuzzy_digits],
+                    'idnssoarefresh': [fuzzy_digits],
+                    'idnssoaretry': [fuzzy_digits],
+                    'idnssoaexpire': [fuzzy_digits],
+                    'idnssoaminimum': [fuzzy_digits],
+                    'idnsallowdynupdate': [u'FALSE'],
+                    'objectclass': [u'top', u'idnsrecord', u'idnszone'],
+                },
+            },
+        ),
+
+
+        dict(
             desc='Delete zone %r' % dnszone1,
             command=('dnszone_del', [dnszone1], {}),
             expected={