one: fix show.html if no firewall_host

one/templates/show.html

@@ -116,6 +116,7 @@
             </table>
         </div>
     </div>
+    {% if i.firewall_host %}
     <div class="contentblock" id="ports">
         <h2>{% trans "Port administration" %}</h2>
         <div class="content">
@@ -158,6 +159,7 @@
             </form>
         </div>
     </div>
+    {% endif %}
 </div>
 <div class="boxes">
     <div class="contentblock" id="vm-list">

one/views.py

@@ -168,6 +168,10 @@ def vm_show(request, iid):
     inst.update_state()
     if inst.template.state == "SAVING":
         inst.check_if_is_save_as_done()
+    try:
+        ports = inst.firewall_host.list_ports()
+    except:
+        ports = None
     return render_to_response("show.html", RequestContext(request,{
         'uri': inst.get_connect_uri(),
         'state': inst.state,
@@ -177,7 +181,7 @@ def vm_show(request, iid):
         'instances': _list_instances(request),
         'i': inst,
         'booting' : not inst.active_since,
-        'ports': inst.firewall_host.list_ports()
+        'ports': ports,
         }))
 
 @require_safe