[Launchpad-users] Getting 401 unauthorized when trying with C#.NET

[Manish Sinha <mail@xxxxxxxxxxxxxxx>]

Hello Everyone, 

I am trying to write a C#.NET wrapper over the Launchpad API. I would like to make it such a way that it can be used on any platform, well that is for the later stages.
Just for the time being I want to create a .NET managed DLL under Open License which can be used by any windows programmer. This effort might even promote the usage of Launchpad amongst windows users.

Right now I am stuck up with 401 errors even though I have followed all the steps specified in https://help.launchpad.net/API/SigningRequests
I am even authorizing the oauth_token by visiting https://edge.launchpad.net/+authorize-token?oauth_token={oauth_token}

My code is here -- http://pastebin.com/Q9quPF7j
C# code is readable, so I think people should not have problems with it. Any case I am here to tell people what I am trying to do.

The most mysterious thing comes up when I try to debug by sniffing through Fiddler (A proxy for windows)

When requesting token
==================
REQUEST:
POST https://edge.launchpad.net/+request-token HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Host: edge.launchpad.net
Content-Length: 79
Expect: 100-continue
Connection: Keep-Alive

oauth_consumer_key=LpSharp&oauth_signature_method=PLAINTEXT&oauth_signature=%26


RESPONSE:
HTTP/1.1 200 Ok
Date: Thu, 18 Mar 2010 19:44:38 GMT
Server: zope.server.http (HTTP)
X-Powered-By: Zope (www.zope.org), Python (www.python.org)
X-Content-Type-Warning: guessed from content
Content-Type: text/plain;charset=utf-8
Content-Length: 132
Vary: Cookie,Authorization,Accept-Encoding
Via: 1.1 edge.launchpad.net
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive

oauth_token=9X2KcwlDzPX0s4B655Lh&oauth_token_secret=Z4FnPfffTV5FVWlXfhZ2P97728l8qKr2v4cSM4B4kfgV7SL3XN16qpcSL0k9vwz16B1D51F1P6ZBg0HM


When Accessing Token
====================
REQUEST:
POST https://edge.launchpad.net/+access-token HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Host: edge.launchpad.net
Content-Length: 192
Expect: 100-continue

oauth_signature=%26Z4FnPfffTV5FVWlXfhZ2P97728l8qKr2v4cSM4B4kfgV7SL3XN16qpcSL0k9vwz16B1D51F1P6ZBg0HM&oauth_consumer_key=LpSharp&oauth_token=9X2KcwlDzPX0s4B655Lh&oauth_signature_method=PLAINTEXT

RESPONSE:
HTTP/1.1 200 Ok
Date: Thu, 18 Mar 2010 19:45:08 GMT
Server: zope.server.http (HTTP)
X-Powered-By: Zope (www.zope.org), Python (www.python.org)
X-Content-Type-Warning: guessed from content
Content-Type: text/plain;charset=utf-8
Content-Length: 148
Vary: Cookie,Authorization,Accept-Encoding
Via: 1.1 edge.launchpad.net

oauth_token=dSVcpThjKlhrk3wzkZtg&oauth_token_secret=XVtGgLJxjWmKsq9RTkLvrvhHGkgrRCVczrsRrzb3tWqsPJck9DGxVHWrnLQh58vfLtdbwmnFNLHRxtHM&lp.context=None


When Requesting anything
=========================
REQUEST:
GET https://api.staging.launchpad.net/beta/bugs/11 HTTP/1.1
Authorization: OAuth realm="https://api.launchpad.net/",oauth_consumer_key="LpSharp",oauth_token="dSVcpThjKlhrk3wzkZtg",oauth_signature_method="PLAINTEXT",oauth_signature="%26XVtGgLJxjWmKsq9RTkLvrvhHGkgrRCVczrsRrzb3tWqsPJck9DGxVHWrnLQh58vfLtdbwmnFNLHRxtHM",oauth_timestamp="1268961329",oauth_nonce="395403630",oauth_version=1.0
Accept: application/json
Host: api.staging.launchpad.net

RESPONSE:
HTTP/1.1 401 Unauthorized
Date: Thu, 18 Mar 2010 19:46:00 GMT
Server: zope.server.http (HTTP)
X-Powered-By: Zope (www.zope.org), Python (www.python.org)
X-Lazr-Oopsid: OOPS-1538S458
Content-Type: text/plain
Content-Length: 44
Via: 1.1 wildcard.staging.launchpad.net

Unknown access token (dSVcpThjKlhrk3wzkZtg).




A good thing to note is that I am using the same *oauth_token* and *oauth_token_secret* in 3rd step which I got from 2nd step.
Still I get a 401