diff --git a/oauth2app/authorize.py b/oauth2app/authorize.py
index 5b563b0..c2e0548 100644
--- a/oauth2app/authorize.py
+++ b/oauth2app/authorize.py
@@ -5,11 +5,15 @@
 
 
 import simplejson as json
-from django.http import absolute_http_url_re, HttpResponse, HttpResponseRedirect, HttpResponseBadRequest
 from urllib import urlencode
+
+from django.http import absolute_http_url_re, HttpResponse, HttpResponseRedirect, HttpResponseBadRequest
+from django.core.exceptions import SuspiciousOperation
+
 from .consts import ACCESS_TOKEN_EXPIRATION, REFRESHABLE
 from .consts import CODE, TOKEN, CODE_AND_TOKEN
 from .consts import AUTHENTICATION_METHOD, MAC, BEARER, MAC_KEY_LENGTH
+from .consts import REDIRECT_CLASS
 from .exceptions import OAuth2Exception
 from .lib.uri import add_parameters, add_fragments, normalize
 from .models import Client, AccessRange, Code, AccessToken, KeyGenerator
@@ -195,7 +199,9 @@ def _validate(self):
         if self.authorized_response_type & RESPONSE_TYPES[self.response_type] == 0:
             raise UnauthorizedClient("Response type %s not allowed." %
                 self.response_type)
-        if not absolute_http_url_re.match(self.redirect_uri):
+        try:
+            REDIRECT_CLASS(self.redirect_uri)
+        except SuspiciousOperation:
             raise InvalidRequest('Absolute URI required for redirect_uri')
         # Scope
         if self.authorized_scope is not None and self.scope is None:
@@ -217,7 +223,7 @@ def _check_redirect_uri(self):
         if self.redirect_uri is None:
             raise MissingRedirectURI('No redirect_uri to send response.')
         if not absolute_http_url_re.match(self.redirect_uri):
-            raise MissingRedirectURI('Absolute redirect_uri required.')
+             raise MissingRedirectURI('Absolute redirect_uri required.')
 
     def error_redirect(self):
         """In the event of an error, return a Django HttpResponseRedirect
@@ -313,7 +319,7 @@ def grant_redirect(self):
                 parameters['state'] = self.state
             redirect_uri = add_parameters(self.redirect_uri, parameters)
             redirect_uri = add_fragments(redirect_uri, fragments)
-            return HttpResponseRedirect(redirect_uri)
+            return REDIRECT_CLASS(redirect_uri)
         else:
             raise UnauthenticatedUser("Django user object associated with the "
                 "request is not authenticated.")
diff --git a/oauth2app/consts.py b/oauth2app/consts.py
index 1004271..582ae72 100644
--- a/oauth2app/consts.py
+++ b/oauth2app/consts.py
@@ -3,8 +3,11 @@
 
 """OAuth 2.0 Default Values."""
 
+import sys
 
 from django.conf import settings
+from django.http import HttpResponseRedirect
+
 from .exceptions import OAuth2Exception
 
 
@@ -51,4 +54,15 @@
 # Grants code style parameters.
 CODE = 2
 # Grants both style parameters.
-CODE_AND_TOKEN = CODE | TOKEN
\ No newline at end of file
+CODE_AND_TOKEN = CODE | TOKEN
+# redirect_class
+REDIRECT_CLASS = getattr(settings, "OAUTH2_REDIRECT_CLASS", HttpResponseRedirect)
+if isinstance(REDIRECT_CLASS, basestring):
+    pos = REDIRECT_CLASS.rfind('.')
+    module_name = REDIRECT_CLASS[:pos]
+    cls_name = REDIRECT_CLASS[pos+1:]
+
+    __import__(module_name, {}, {}, [])
+    module = sys.modules[module_name]
+
+    REDIRECT_CLASS = getattr(module, cls_name)
diff --git a/oauth2app/lib/uri.py b/oauth2app/lib/uri.py
index 9308cb5..fdde9fb 100644
--- a/oauth2app/lib/uri.py
+++ b/oauth2app/lib/uri.py
@@ -4,7 +4,7 @@
 """OAuth 2.0 URI Helper Functions"""
 
 
-from urlparse import urlparse, urlunparse, parse_qsl
+from urlparse import urlparse, urlunparse, parse_qsl, uses_netloc
 from urllib import urlencode
 from url_normalize import url_normalize
  
@@ -19,9 +19,12 @@ def add_parameters(url, parameters):
 
     *Returns str*"""
     parts = list(urlparse(url))
-    parts[4] = urlencode(parse_qsl(parts[4]) + parameters.items())
-    return urlunparse(parts)
-    
+    if parts[0] in uses_netloc:
+        parts[4] = urlencode(parse_qsl(parts[4]) + parameters.items())
+        return urlunparse(parts)
+    else:
+        return '%s?%s' % (url, urlencode(parse_qsl(parts[4]) + parameters.items()))
+
 
 def add_fragments(url, fragments):
     """Parses URL and appends fragments. 
@@ -33,9 +36,12 @@ def add_fragments(url, fragments):
 
     *Returns str*"""
     parts = list(urlparse(url))
-    parts[5] = urlencode(parse_qsl(parts[5]) + fragments.items())
-    return urlunparse(parts)
-    
+    if parts[0] in uses_netloc:
+        parts[5] = urlencode(parse_qsl(parts[5]) + fragments.items())
+        return urlunparse(parts)
+    else:
+        return '%s#%s' % (url, urlencode(parse_qsl(parts[5]) + fragments.items()))
+
     
 def normalize(url):
     """Normalizes URL.
diff --git a/setup.py b/setup.py
index 329956f..f3761c1 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
     packages = find_packages(),
 
-    install_requires = ['Django>=1.2.3', 'simplejson>=2.1.5', "django-uni-form>=0.8.0"],
+    install_requires = ['Django>=1.2.3', 'simplejson>=2.1.5'],
     include_package_data = True,
 
     # metadata for upload to PyPI