|
|
- from datetime import datetime
-
- from cronsim import CronSim
- from django.core.exceptions import ValidationError
- from urllib.parse import urlparse
- from pytz import all_timezones
-
-
- class WebhookValidator(object):
- message = "Enter a valid URL."
-
- def __call__(self, value):
- parsed = urlparse(value)
- if parsed.scheme not in ("http", "https"):
- raise ValidationError(message=self.message)
-
- if parsed.hostname in ("127.0.0.1", "localhost"):
- raise ValidationError(message=self.message)
-
-
- class CronExpressionValidator(object):
- message = "Not a valid cron expression."
-
- def __call__(self, value):
- # Expect 5 components-
- if len(value.split()) != 5:
- raise ValidationError(message=self.message)
-
- try:
- # Does cronsim accept the schedule?
- it = CronSim(value, datetime(2000, 1, 1))
- # Can it calculate the next datetime?
- next(it)
- except:
- raise ValidationError(message=self.message)
-
-
- class TimezoneValidator(object):
- message = "Not a valid time zone."
-
- def __call__(self, value):
- if value not in all_timezones:
- raise ValidationError(message=self.message)
|
