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Refactor route validation logic in form cleaning method

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Eduardo Silva
2026-01-27 15:08:34 -03:00
parent 45f9f5b1cc
commit e5fe6a0628
1 changed files with 58 additions and 20 deletions
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78
routing_templates/forms.py
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@@ -78,37 +78,75 @@ class RoutingTemplateForm(forms.ModelForm):
def clean(self): def clean(self):
cleaned_data = super().clean() cleaned_data = super().clean()
allow_custom = cleaned_data.get('allow_peer_custom_routes') allow_custom = cleaned_data.get('allow_peer_custom_routes')
enforce_policy = cleaned_data.get('enforce_route_policy')
route_type = cleaned_data.get('route_type') route_type = cleaned_data.get('route_type')
custom_routes = cleaned_data.get('custom_routes') custom_routes_raw = (cleaned_data.get('custom_routes') or "")
if allow_custom and enforce_policy: lines = [ln.strip() for ln in custom_routes_raw.splitlines() if ln.strip()]
raise forms.ValidationError(_("You cannot enable 'Enforce Route Policy' when 'Allow Peer Custom Routes' is checked."))
if route_type == 'custom' and not custom_routes: if route_type == 'default':
self.add_error('custom_routes', _("At least one route must be provided when Route Type is 'Custom'.")) if lines:
self.add_error(
'custom_routes',
_("Custom routes should be empty when Route Type is 'Default Route'.")
)
if allow_custom:
self.add_error(
'allow_peer_custom_routes',
_("Allowing peer custom routes is not applicable when Route Type is 'Default Route'.")
)
return cleaned_data
if custom_routes: if route_type == 'custom' and not lines:
lines = custom_routes.strip().split('\n') self.add_error(
'custom_routes',
_("At least one route must be provided when Route Type is 'Custom'.")
)
return cleaned_data
if lines:
validated_routes = [] validated_routes = []
for line in lines: for line in lines:
line = line.strip() # exige ip/mask
if not line: if "/" not in line:
continue self.add_error(
'custom_routes',
_("Invalid route format: '%(line)s'. Please use CIDR notation (e.g., 10.0.0.0/24).") % {
'line': line}
)
break
try: try:
network = ipaddress.ip_network(line, strict=False) network = ipaddress.ip_network(line, strict=False)
if str(network) == '0.0.0.0/0':
self.add_error('custom_routes', _("The route 0.0.0.0/0 is not allowed. Use the 'Default Route' type instead."))
break
validated_routes.append(str(network))
except ValueError: except ValueError:
self.add_error('custom_routes', _("Invalid route format: '%(line)s'. Please use CIDR notation (e.g., 192.168.1.0/24).") % {'line': line}) self.add_error(
'custom_routes',
_("Invalid route format: '%(line)s'. Please use CIDR notation (e.g., 10.0.0.0/24).") % {
'line': line}
)
break break
if str(network) in ('0.0.0.0/0', '::/0'):
self.add_error(
'custom_routes',
_("The route %(route)s is not allowed. Use the 'Default Route' type instead.") % {
'route': str(network)}
)
break
if str(network) != line:
self.add_error(
'custom_routes',
_("'%(line)s' is not a network address. Use the network address (e.g., '%(net)s').") % {
'line': line,
'net': str(network),
}
)
break
validated_routes.append(str(network))
if not self.errors.get('custom_routes'): if not self.errors.get('custom_routes'):
cleaned_data['custom_routes'] = '\n'.join(validated_routes) cleaned_data['custom_routes'] = '\n'.join(validated_routes)
if route_type == 'default' and custom_routes:
self.add_error('custom_routes', _("Custom routes should be empty when Route Type is 'Default Route'."))
return cleaned_data return cleaned_data