Initial push to public repo

netbox/ipam/formfields.py

@@ -0,0 +1,30 @@
+from netaddr import IPNetwork, AddrFormatError
+
+from django import forms
+from django.core.exceptions import ValidationError
+
+
+#
+# Form fields
+#
+
+class IPFormField(forms.Field):
+    default_error_messages = {
+        'invalid': "Enter a valid IPv4 or IPv6 address (with CIDR mask).",
+    }
+
+    def to_python(self, value):
+        if not value:
+            return None
+
+        if isinstance(value, IPNetwork):
+            return value
+
+        # Ensure that a subnet mask has been specified. This prevents IPs from defaulting to a /32 or /128.
+        if len(value.split('/')) != 2:
+            raise ValidationError('CIDR mask (e.g. /24) is required.')
+
+        try:
+            return IPNetwork(value)
+        except AddrFormatError:
+            raise ValidationError("Please specify a valid IPv4 or IPv6 address.")