I am trying to restrict all blogs access to only authenticated users, I am using the following class to override the blog routes:

class RestrictWebBLog(WebsiteBlog):

    @http.route(auth='user')

    def blogs(self):

        return super(RestrictWebBLog, self).blogs()



    @http.route(auth='user')

    def blog_post(self):

        return super(RestrictWebBLog, self).blog_post()



    @http.route(auth='user')

    def blog(self):

        return super(RestrictWebBLog, self).blog()

It seems to work, because login is required when trying to access any blog, but after entering credentials, the following error appears:  

500: Internal Server Error

Error message:

blog() got an unexpected keyword argument 'blog'

Traceback (most recent call last):
  File "/opt/odoo/odoo/addons/base/models/ir_http.py", line 203, in _dispatch
    result = request.dispatch()
  File "/opt/odoo/odoo/http.py", line 833, in dispatch
    r = self._call_function(**self.params)
  File "/opt/odoo/odoo/http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/opt/odoo/odoo/service/model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "/opt/odoo/odoo/http.py", line 337, in checked_call
    result = self.endpoint(*a, **kw)
  File "/opt/odoo/odoo/http.py", line 939, in __call__
    return self.method(*args, **kw)
  File "/opt/odoo/odoo/http.py", line 517, in response_wrap
    response = f(*args, **kw)
TypeError: blog() got an unexpected keyword argument 'blog'