Merge git://github.com/melinath/philo into melinath

[philo.git] / validators.py

diff --git a/validators.py b/validators.py
index bc41d02..1e73c0b 100644 (file)
--- a/validators.py
+++ b/validators.py
@@ -1,5 +1,7 @@
 from django.core.exceptions import ValidationError
 from django.utils.translation import ugettext_lazy as _
+from django.core.validators import RegexValidator
+import re
 
 
 class TreeParentValidator(object):
@@ -43,6 +45,7 @@ class TreeParentValidator(object):
                return self.static_message or _(u"A %s can't be its own parent." % self.instance.__class__.__name__)
        message = property(get_message)
        
+       
 class TreePositionValidator(object):
        code = 'invalid'
        
@@ -75,3 +78,30 @@ class TreePositionValidator(object):
        def get_message(self):
                return self.static_message or _(u"A %s with that path (parent and slug) already exists." % self.obj_class.__name__)
        message = property(get_message)
+
+
+class RedirectValidator(RegexValidator):
+       """Based loosely on the URLValidator, but no option to verify_exists"""
+       regex = re.compile(
+               r'^(?:https?://' # http:// or https://
+               r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+[A-Z]{2,6}\.?|' #domain...
+               r'localhost|' #localhost...
+               r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' # ...or ip
+               r'(?::\d+)?' # optional port
+               r'(?:/?|[/?#]?\S+)|'
+               r'[^?#\s]\S*)$',
+               re.IGNORECASE)
+       message = _(u'Enter a valid absolute or relative redirect target')
+
+
+class URLLinkValidator(RegexValidator):
+       """Based loosely on the URLValidator, but no option to verify_exists"""
+       regex = re.compile(
+               r'^(?:https?://' # http:// or https://
+               r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+[A-Z]{2,6}\.?|' #domain...
+               r'localhost|' #localhost...
+               r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' # ...or ip
+               r'(?::\d+)?' # optional port
+               r'|)' # also allow internal links
+               r'(?:/?|[/?#]?\S+)$', re.IGNORECASE)
+       message = _(u'Enter a valid absolute or relative redirect target')