diff options
Diffstat (limited to 'django/core/validators.py')
| -rw-r--r-- | django/core/validators.py | 55 |
1 files changed, 48 insertions, 7 deletions
diff --git a/django/core/validators.py b/django/core/validators.py index 4c3f59143e..a2f3dc3bc3 100644 --- a/django/core/validators.py +++ b/django/core/validators.py @@ -8,6 +8,7 @@ validator will *always* be run, regardless of whether its associated form field is required. """ +import urllib2 from django.conf import settings from django.utils.translation import gettext, gettext_lazy, ngettext from django.utils.functional import Promise, lazy @@ -223,18 +224,26 @@ def isWellFormedXmlFragment(field_data, all_data): isWellFormedXml('<root>%s</root>' % field_data, all_data) def isExistingURL(field_data, all_data): - import urllib2 try: - u = urllib2.urlopen(field_data) + headers = { + "Accept" : "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5", + "Accept-Language" : "en-us,en;q=0.5", + "Accept-Charset": "ISO-8859-1,utf-8;q=0.7,*;q=0.7", + "Connection" : "close", + "User-Agent": settings.URL_VALIDATOR_USER_AGENT + } + req = urllib2.Request(field_data,None, headers) + u = urllib2.urlopen(req) except ValueError: - raise ValidationError, gettext("Invalid URL: %s") % field_data + raise ValidationError, _("Invalid URL: %s") % field_data except urllib2.HTTPError, e: # 401s are valid; they just mean authorization is required. - if e.code not in ('401',): - raise ValidationError, gettext("The URL %s is a broken link.") % field_data + # 301 and 302 are redirects; they just mean look somewhere else. + if str(e.code) not in ('401','301','302'): + raise ValidationError, _("The URL %s is a broken link.") % field_data except: # urllib2.URLError, httplib.InvalidURL, etc. - raise ValidationError, gettext("The URL %s is a broken link.") % field_data - + raise ValidationError, _("The URL %s is a broken link.") % field_data + def isValidUSState(field_data, all_data): "Checks that the given string is a valid two-letter U.S. state abbreviation" states = ['AA', 'AE', 'AK', 'AL', 'AP', 'AR', 'AS', 'AZ', 'CA', 'CO', 'CT', 'DC', 'DE', 'FL', 'FM', 'GA', 'GU', 'HI', 'IA', 'ID', 'IL', 'IN', 'KS', 'KY', 'LA', 'MA', 'MD', 'ME', 'MH', 'MI', 'MN', 'MO', 'MP', 'MS', 'MT', 'NC', 'ND', 'NE', 'NH', 'NJ', 'NM', 'NV', 'NY', 'OH', 'OK', 'OR', 'PA', 'PR', 'PW', 'RI', 'SC', 'SD', 'TN', 'TX', 'UT', 'VA', 'VI', 'VT', 'WA', 'WI', 'WV', 'WY'] @@ -344,6 +353,38 @@ class UniqueAmongstFieldsWithPrefix(object): if field_name != self.field_name and value == field_data: raise ValidationError, self.error_message +class NumberIsInRange(object): + """ + Validator that tests if a value is in a range (inclusive). + """ + def __init__(self, lower=None, upper=None, error_message=''): + self.lower, self.upper = lower, upper + if not error_message: + if lower and upper: + self.error_message = gettext("This value must be between %s and %s.") % (lower, upper) + elif lower: + self.error_message = gettext("This value must be at least %s.") % lower + elif upper: + self.error_message = gettext("This value must be no more than %s.") % upper + else: + self.error_message = error_message + + def __call__(self, field_data, all_data): + # Try to make the value numeric. If this fails, we assume another + # validator will catch the problem. + try: + val = float(field_data) + except ValueError: + return + + # Now validate + if self.lower and self.upper and (val < self.lower or val > self.upper): + raise ValidationError(self.error_message) + elif self.lower and val < self.lower: + raise ValidationError(self.error_message) + elif self.upper and val > self.upper: + raise ValidationError(self.error_message) + class IsAPowerOf(object): """ >>> v = IsAPowerOf(2) |