Change code structure to fit django 1.5

seahub/api2/serializers.py

@@ -0,0 +1,25 @@
+from rest_framework import serializers
+
+from auth import authenticate
+
+class AuthTokenSerializer(serializers.Serializer):
+    username = serializers.CharField()
+    password = serializers.CharField()
+
+    def validate(self, attrs):
+        username = attrs.get('username')
+        password = attrs.get('password')
+
+        if username and password:
+            user = authenticate(username=username, password=password)
+
+            if user:
+                if not user.is_active:
+                    raise serializers.ValidationError('User account is disabled.')
+                attrs['user'] = user
+                return attrs
+            else:
+                raise serializers.ValidationError('Unable to login with provided credentials.')
+        else:
+            raise serializers.ValidationError('Must include "username" and "password"')
+