[mod_python] Can i have both Marshal and Signed CookieswithPublisher?

I have created a JIRA issue for this at:

  http://issues.apache.org/jira/browse/MODPYTHON-200

At the moment I have made changes (not committed), that would allow
one to do:

    cookies = Cookie.get_cookies(req, Cookie.MarshalCookie, secret='secret', names=['marshal'])

That is, when using Cookie.get_cookies(), one can optionally provide a
keyword argument called 'names' which is a set/list of cookie names
to decode.

As a convenience, also have function for getting just one cookie.

    cookie = Cookie.get_cookie(req, 'marshal', Cookie.MarshalCookie, secret='secret')

In this latter function, of cookie doesn't exist, it would return None.

Does this sound reasonable?

Graham

Graham Dumpleton wrote ..
> That would be understandable. The Cookie.get_cookies() expects you
> to supply a class type and since there are multiple cookies stored of
> differing types then the class type supplied may not be able to unpack
> all of them.
> 
> There probably needs to be a Cookie.get_cookie() so you can say that
> you only want to get a specific cookie by name. Not sure I understand
> why there isn't one already unless I am missing something.
> 
> Besides writing your own version of Cookie.get_cookie(), the only other
> way of getting around the problem for now is to set the 'path' attribute
> of the cookies so that the cookies only get delivered to their respective
> applications. But then, even that isn't necessarily going to help in all
> cases because sessions use cookies as well, so it you want to use a
> marshalled cookie in the same context as a session is used you are
> similarly going to have a problem if the session is signed.
> 
> Graham
> 
> Clodoaldo Pinto Neto wrote ..
> > If i set both a Signed and a Marshal cookie and try to retrieve the
> > Marshal one using the Publisher i get this error:
> > 
> > ----------------------------------------
> > Mod_python error: "PythonHandler mod_python.publisher"
> > 
> > Traceback (most recent call last):
> > 
> >   File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line
> > 299, in HandlerDispatch
> >     result = object(req)
> > 
> >   File "/usr/lib/python2.4/site-packages/mod_python/publisher.py",
> > line 213, in handler
> >     published = publish_object(req, object)
> > 
> >   File "/usr/lib/python2.4/site-packages/mod_python/publisher.py",
> > line 412, in publish_object
> >     return publish_object(req,util.apply_fs_data(object, req.form, req=req))
> > 
> >   File "/usr/lib/python2.4/site-packages/mod_python/util.py", line
> > 439, in apply_fs_data
> >     return object(**args)
> > 
> >   File "/var/www/html/teste/python/publisher/marshalcookie.py", line
> > 10, in index
> >     marshal_cookies = Cookie.get_cookies(
> > 
> >   File "/usr/lib/python2.4/site-packages/mod_python/Cookie.py", line
> > 350, in get_cookies
> >     return Class.parse(cookies, **kw)
> > 
> >   File "/usr/lib/python2.4/site-packages/mod_python/Cookie.py", line
> > 252, in parse
> >     c.unmarshal(secret)
> > 
> >   File "/usr/lib/python2.4/site-packages/mod_python/Cookie.py", line
> > 280, in unmarshal
> >     self.value = marshal.loads(base64.decodestring(self.value))
> > 
> >   File "/usr/lib/python2.4/base64.py", line 319, in decodestring
> >     return binascii.a2b_base64(s)
> > 
> > Error: Incorrect padding
> > ---------------------------------------------
> > 
> > If the Signed cookie is deleted then the Marshal cookie can be
> > retrieved with no errors.
> > 
> > The scripts that trigger the error are:
> > 
> > Set and retrieve the Signed cookie:
> > http://webpython.codepoint.net/mod_python_publisher_cookies_signed
> > 
> > Set and retrieve the Marshal cookie:
> > http://webpython.codepoint.net/mod_python_publisher_cookies_marshal
> > 
> > I'm just building that tutorial. BTW i would appreciate to have it
> > corrected by the experts.
> > 
> > I tested in Firefox 1.5.0.7 and Opera 9.02. FC5, mod_python 3.2.8, Apache
> > 2.2.2.
> > 
> > Regards, Clodoaldo Pinto Neto
> > _______________________________________________
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> > Mod_python at modpython.org
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