Ticket #5386: newforms.content_type.diff

django/newforms/fields.py

@@ -416 +416 @@
 
 class UploadedFile(StrAndUnicode):
     "A wrapper for files uploaded in a FileField"
-    def __init__(self, filename, content):
+    def __init__(self, filename, content, content_type):
         self.filename = filename
         self.content = content
+        self.content_type = content_type
 
     def __unicode__(self):
         """
@@ -445 +446 @@
         elif not data and initial:
             return initial
         try:
-            f = UploadedFile(data['filename'], data['content'])
+            f = UploadedFile(data['filename'], data['content'], data['content-type'])
         except TypeError:
             raise ValidationError(self.error_messages['invalid'])
         except KeyError:

docs/newforms.txt

@@ -1340 +1340 @@
                             client.
                             
     ``content``             The array of bytes comprising the file content.
+                            
+    ``content_type``        The Content-Type of the file as submitted by the
+                            browser.
     ======================  ====================================================
 
 The string representation of an ``UploadedFile`` is the same as the filename
 attribute.
 
+You can perform basic validation against the ``content_type`` if you need to
+allow only uploads of specific files. Note that this is however unreliable,
+since the data is submitted by the browser.
+
 When you use a ``FileField`` on a form, you must also remember to
 `bind the file data to the form`_.