Determine content-type of page in middleware class Django

[Artie]

Well, I have middleware class which is required to determine content-type of rendered page and if it is 'txt/html', then do some action. I've started just from seeing what content-types do I have on page and here is first problem I faced:

class StatsMiddleware(object): 
   def process_view(self, request, view_func, view_args, view_kwargs): 
      response = view_func(request, *view_args, **view_kwargs) 
      print response['Content-Type']

Executing this, I get few messages about content-types of page elements, like text/html, application/javascript and also tons of errors like key error: content-type and after that - broken pipe

So I assume that not all elements of page have such header Content-Type and my question is following:

Is there some general Content-Type that says 'That page is text/html' or there are a lot of content-types on page ?

And also if this is a proper way to deterimne content-type of page like this:

if response['Content-Type'] == 'text/html':
     pass

[Collin Anderson]

Hi,

It looks like for 304 (not modified) Django specifically deletes the content-type header.

https://github.com/django/django/blob/0fc188251069b73b293f79dba6f3e9e331ad7e91/django/http/response.py#L458

It would probably be better to say:

if response.get('Content-Type', '').startswith('text/html'):
    pass

Collin