def is_valid_url(message=None):
"""Check if the string passed is a valid URL. We also blacklist some
url schemes like javascript for security reasons.
>>> check(is_valid_url, 'http://pocoo.org/')
True
>>> check(is_valid_url, 'http://zine.pocoo.org/archive')
True
>>> check(is_valid_url, 'zine.pocoo.org/archive')
False
>>> check(is_valid_url, 'javascript:alert("Zine rocks!");')
False
"""
if message is None:
message = lazy_gettext(u'You have to enter a valid URL.')
def validator(form, value):
protocol = urlparse(value)[0]
if not protocol or protocol == 'javascript':
raise ValidationError(message)
return validator
def is_valid_email(message=None):
"""Check if the string passed is a valid mail address.
>>> check(is_valid_email, '*****@*****.**')
True
>>> check(is_valid_email, 'somebody AT example DOT com')
False
>>> check(is_valid_email, 'some random string')
False
Because e-mail validation is painfully complex we just check the first
part of the email if it looks okay (comments are not handled!) and ignore
the second.
"""
if message is None:
message = lazy_gettext(u'You have to enter a valid e-mail address.')
def validator(form, value):
if len(value) > 250 or _mail_re.match(value) is None:
raise ValidationError(message)
return validator