Ensure proper validation for l3 API attributes

Fixes bug1042042

This patch introduces validation for uuid and ip fields in l3 api
data structures.

Change-Id: Ibc4913e0bcf5b33cb5e4bd42c89b82ec374f5437

quantum/extensions/l3.py

@@ -53,6 +53,13 @@ class FloatingIPPortAlreadyAssociated(qexception.InUse):
     message = _("Port %(port_id) already has a floating IP associated with it")
 
 
+def _validate_uuid_or_none(data, valid_values=None):
+    if data is None:
+        return None
+    return attr._validate_regex(data, attr.UUID_PATTERN)
+
+attr.validators['type:uuid_or_none'] = _validate_uuid_or_none
+
 # Attribute Map
 RESOURCE_ATTRIBUTE_MAP = {
     'routers': {
@@ -80,12 +87,15 @@ RESOURCE_ATTRIBUTE_MAP = {
         'floating_ip_address': {'allow_post': False, 'allow_put': False,
                                 'is_visible': True},
         'floating_network_id': {'allow_post': True, 'allow_put': False,
+                                'validate': {'type:regex': attr.UUID_PATTERN},
                                 'is_visible': True},
         'router_id': {'allow_post': False, 'allow_put': False,
                       'is_visible': True, 'default': None},
         'port_id': {'allow_post': True, 'allow_put': True,
+                    'validate': {'type:uuid_or_none': None},
                     'is_visible': True, 'default': None},
         'fixed_ip_address': {'allow_post': True, 'allow_put': True,
+                             'validate': {'type:ip_address_or_none': None},
                              'is_visible': True, 'default': None},
         'tenant_id': {'allow_post': True, 'allow_put': False,
                       'required_by_policy': True,

quantum/tests/unit/test_l3_plugin.py

@@ -31,6 +31,7 @@ from webob import exc
 from quantum.api.v2 import attributes
 from quantum.common import config
 from quantum.common.test_lib import test_config
+from quantum.common import utils
 from quantum.db import db_base_plugin_v2
 from quantum.db import l3_db
 from quantum.extensions import extensions
@@ -471,7 +472,7 @@ class L3NatDBTestCase(test_db_plugin.QuantumDbPluginV2TestCase):
         if port_id:
             data['floatingip']['port_id'] = port_id
             if fixed_ip:
-                data['floatingip']['fixed_ip'] = fixed_ip
+                data['floatingip']['fixed_ip_address'] = fixed_ip
         floatingip_req = self.new_create_request('floatingips', data, fmt)
         return floatingip_req.get_response(self.ext_api)
 
@@ -638,3 +639,21 @@ class L3NatDBTestCase(test_db_plugin.QuantumDbPluginV2TestCase):
                                                   r['router']['id'],
                                                   private_sub['subnet']['id'],
                                                   None)
+
+    def test_create_floatingip_invalid_floating_network_id_returns_422(self):
+        # API-level test - no need to create all objects for l3 plugin
+        res = self._create_floatingip('json', 'iamnotanuuid',
+                                      utils.str_uuid(), '192.168.0.1')
+        self.assertEqual(res.status_int, 422)
+
+    def test_create_floatingip_invalid_floating_port_id_returns_422(self):
+        # API-level test - no need to create all objects for l3 plugin
+        res = self._create_floatingip('json', utils.str_uuid(),
+                                      'iamnotanuuid', '192.168.0.1')
+        self.assertEqual(res.status_int, 422)
+
+    def test_create_floatingip_invalid_fixed_ip_address_returns_422(self):
+        # API-level test - no need to create all objects for l3 plugin
+        res = self._create_floatingip('json', utils.str_uuid(),
+                                      utils.str_uuid(), 'iamnotnanip')
+        self.assertEqual(res.status_int, 422)