X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/6a9c8723936694a6b55f8b4bdcac7009c6c3cccf..46fdca9049d4b7806bc4d6ec33973a3fc19153c4:/validators.py

diff --git a/validators.py b/validators.py
index bc41d02..637dba8 100644
--- a/validators.py
+++ b/validators.py
@@ -1,77 +1,30 @@
-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):
-	"""
-	constructor takes instance and parent_attr, where instance is the model
-	being validated and parent_attr is where to look on that parent for the
-	comparison.
-	"""
-	#message = _("A tree element can't be its own parent.")
-	code = 'invalid'
-	
-	def __init__(self, instance, parent_attr=None, message=None, code=None):
-		self.instance = instance
-		self.parent_attr = parent_attr
-		self.static_message = message
-		if code is not None:
-			self.code = code
-	
-	def __call__(self, value):
-		"""
-		Validates that the self.instance is not found in the parent tree of
-		the node given as value.
-		"""
-		parent = value
-		
-		while parent:
-			comparison=self.get_comparison(parent)
-			if comparison == self.instance:
-				# using (self.message, code=self.code) results in the admin interface
-				# screwing with the error message and making it be 'Enter a valid value'
-				raise ValidationError(self.message)
-			parent=parent.parent
-	
-	def get_comparison(self, parent):
-		if self.parent_attr and hasattr(parent, self.parent_attr):
-			return getattr(parent, self.parent_attr)
-		
-		return parent
-	
-	def get_message(self):
-		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'
-	
-	def __init__(self, parent, slug, obj_class, message=None, code=None):
-		self.parent = parent
-		self.slug = slug
-		self.obj_class = obj_class
-		self.static_message = message
-			
-		if code is not None:
-			self.code = code
-	
-	def __call__(self, value):
-		"""
-		Validates that there is no obj of obj_class with the same position
-		as the compared obj (value) but a different id.
-		"""
-		if not isinstance(value, self.obj_class):
-			raise ValidationError(_(u"The value must be an instance of %s." % self.obj_class.__name__))
-		
-		try:
-			obj = self.obj_class.objects.get(slug=self.slug, parent=self.parent)
-			
-			if obj.id != value.id:
-				raise ValidationError(self.message)
-				
-		except self.obj_class.DoesNotExist:
-			pass
-	
-	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')