Allow UPPER case in protocol/action for FW Rule

Currently firewall rule create/update allows only lower case values for
its protocol and action arguments. Limiting the protocol/action attribute
to lower case is not very user friendly. This patch allows the user to
provide protocol and action fields in UPPER/lower case.

Change-Id: Ib8b278fc89f81d89d30f4e8dde9797e9149d3919
Co-Authored-By:Akihiro Motoki<motoki@da.jp.nec.com>
Closes-Bug: #1508753

neutronclient/neutron/v2_0/fw/firewallrule.py

@@ -103,18 +103,20 @@ class CreateFirewallRule(neutronv20.CreateCommand):
             help=_('Whether to enable or disable this rule.'))
         parser.add_argument(
             '--protocol', choices=['tcp', 'udp', 'icmp', 'any'],
+            type=utils.convert_to_lowercase,
             required=True,
             help=_('Protocol for the firewall rule.'))
         parser.add_argument(
             '--action',
             required=True,
+            type=utils.convert_to_lowercase,
             choices=['allow', 'deny', 'reject'],
             help=_('Action for the firewall rule.'))
 
     def args2body(self, parsed_args):
         body = {}
         neutronv20.update_dict(parsed_args, body,
-                               ['name', 'description', 'shared', 'protocol',
+                               ['name', 'description', 'shared',
                                 'source_ip_address', 'destination_ip_address',
                                 'source_port', 'destination_port',
                                 'action', 'enabled', 'tenant_id',
@@ -135,7 +137,10 @@ class UpdateFirewallRule(neutronv20.UpdateCommand):
         parser.add_argument(
             '--protocol', choices=['tcp', 'udp', 'icmp', 'any'],
             required=False,
+            type=utils.convert_to_lowercase,
             help=_('Protocol for the firewall rule.'))
+        # TODO(reedip) : Need to add the option for action once
+        # action also comes into Update Firewall Rule
 
     def args2body(self, parsed_args):
         body = {}

neutronclient/tests/unit/fw/test_cli20_firewallrule.py

@@ -58,8 +58,9 @@ class CLITestV20FirewallRuleJSON(test_cli20.CLITestV20Base):
     def test_create_disabled_firewall_rule_with_mandatory_params(self):
         self._test_create_firewall_rule_with_mandatory_params(enabled='False')
 
-    def _setup_create_firewall_rule_with_all_params(self, protocol='tcp',
+    def _setup_create_firewall_rule_with_all_params(
-                                                    ip_version='4'):
+            self, protocol='tcp', protocol_cli=None,
+            action='allow', action_cli=None, ip_version='4'):
         # firewall-rule-create with all params set.
         resource = 'firewall_rule'
         cmd = firewallrule.CreateFirewallRule(test_cli20.MyApp(sys.stdout),
@@ -70,19 +71,18 @@ class CLITestV20FirewallRuleJSON(test_cli20.CLITestV20Base):
         destination_ip = '192.168.2.0/24'
         source_port = '0:65535'
         destination_port = '0:65535'
-        action = 'allow'
         tenant_id = 'my-tenant'
         my_id = 'myid'
         enabled = 'True'
         args = ['--description', description,
                 '--shared',
-                '--protocol', protocol,
+                '--protocol', protocol_cli or protocol,
                 '--ip-version', ip_version,
                 '--source-ip-address', source_ip,
                 '--destination-ip-address', destination_ip,
                 '--source-port', source_port,
                 '--destination-port', destination_port,
-                '--action', action,
+                '--action', action_cli or action,
                 '--enabled', enabled,
                 '--admin-state-up',
                 '--tenant-id', tenant_id]
@@ -126,6 +126,16 @@ class CLITestV20FirewallRuleJSON(test_cli20.CLITestV20Base):
     def test_create_firewall_rule_with_invalid_IP_version(self):
         self._setup_create_firewall_rule_with_all_params(ip_version='5')
 
+    def test_create_firewall_rule_with_proto_action_upper_capitalized(self):
+        for protocol in ('TCP', 'Tcp', 'ANY', 'AnY'):
+            self._setup_create_firewall_rule_with_all_params(
+                protocol=protocol.lower(),
+                protocol_cli=protocol)
+        for action in ('Allow', 'DENY', 'reject'):
+            self._setup_create_firewall_rule_with_all_params(
+                action=action.lower(),
+                action_cli=action)
+
     def test_list_firewall_rules(self):
         # firewall-rule-list.
         resources = "firewall_rules"