xmlrpc, extract data from http headers

[Milos Prudek]

I perform a XML-RPC call by calling xmlrpclibBasicA uth which in turn calls
xmlrpclib. This call of course sends a HTTP request with correct HTTP
headers. The response is correctly parsed by xmlrpclib, and I get my desired
values.

However, I also need to get the raw HTTP headers from the HTTP response. There
is a cookie in the HTTP response and I need to read that cookie.

How could I do that?

--
Milos Prudek

[Filip Wasilewski]

Re: xmlrpc, extract data from http headers

Milos Prudek wrote:

I perform a XML-RPC call by calling xmlrpclibBasicA uth which in turn calls
xmlrpclib. This call of course sends a HTTP request with correct HTTP
headers. The response is correctly parsed by xmlrpclib, and I get my desired
values.
>
However, I also need to get the raw HTTP headers from the HTTP response. There
is a cookie in the HTTP response and I need to read that cookie.
>
How could I do that?

Overload the _parse_response method of Transport in your
BasicAuthTransp ort and extract headers from raw response. See the
source of xmlrpclib.py in the standard library for details.

cheers,
fw

[Milos Prudek]

Re: xmlrpc, extract data from http headers

Overload the _parse_response method of Transport in your
BasicAuthTransp ort and extract headers from raw response. See the
source of xmlrpclib.py in the standard library for details.

Thank you.

I am a bit of a false beginner in Python. I have written only short scripts. I
want to read "Dive into Python" to improve my knowledge. Your advice is
perfect. It is my fault that I need a little more guidance.

I am not sure how the headers will be passed from Transport to the instance of
ServerProxy. That is, if I change the _parse_response method, how do I
retreive the headers using the ServerProxy command?


--
Milos Prudek

[Filip Wasilewski]

Re: xmlrpc, extract data from http headers

Milos Prudek wrote:

Overload the _parse_response method of Transport in your
BasicAuthTransp ort and extract headers from raw response. See the
source of xmlrpclib.py in the standard library for details.

>
Thank you.
>
I am a bit of a false beginner in Python. I have written only short scripts. I
want to read "Dive into Python" to improve my knowledge. Your advice is
perfect. It is my fault that I need a little more guidance.
>
I am not sure how the headers will be passed from Transport to the instance of
ServerProxy. That is, if I change the _parse_response method, how do I
retreive the headers using the ServerProxy command?

Erm, now I see that my previous response was incorrect, sorry. The
headers are not passed to the _parse_response method.

A better solution would be to extract cookies from headers in the
request method and return them with response (see the code below). I
still wonder if there is an easy way to use CookieJar from cookielib
with xmlrpclib.

class CookieTransport (xmlrpclib.Tran sport):
def request(self, host, handler, request_body, verbose=0):
h = self.make_conne ction(host)
if verbose:
h.set_debugleve l(1)

self.send_reque st(h, handler, request_body)
self.send_host( h, host)
self.send_user_ agent(h)
self.send_conte nt(h, request_body)

errcode, errmsg, headers = h.getreply()

if errcode != 200:
raise ProtocolError(
host + handler,
errcode, errmsg,
headers
)

self.verbose = verbose

cookies = self.get_cookie s(headers)

try:
sock = h._conn.sock
except AttributeError:
sock = None

response = self._parse_res ponse(h.getfile (), sock)
if len(response) == 1:
response = response[0]

return response, cookies

def _get_cookies(se lf, headers):
import Cookie
c = []
for v in headers.gethead ers('set-cookie'):
c.append(Cookie .SimpleCookie(v ))
return c

server = xmlrpclib.Serve rProxy("http://localhost:8000" ,
transport=Cooki eTransport())
result, cookies = server.somethin g.call()


best,
fw

[Milos Prudek]

Re: xmlrpc, extract data from http headers

A better solution would be to extract cookies from headers in the
request method and return them with response (see the code below). I

Full solution! Wow! Thank you very much. I certainly do not deserve such
kindness. Thanks a lot Filip!

--
Milos Prudek

[Filip Wasilewski]

Re: xmlrpc, extract data from http headers

Milos Prudek wrote:

A better solution would be to extract cookies from headers in the
request method and return them with response (see the code below). I

>
Full solution! Wow! Thank you very much. I certainly do not deserve such
kindness. Thanks a lot Filip!

Glad to help. All in all this is the purpose of this group, isn't it?

cheers,
fw