Hi Yann, I don't see anything obvious that stands out as wrong to me in your implementation from just looking at it, but I'm not sure. I do have OAuth Echo code working for Twitpic but using the OAuth2 library. If you don't figure out an answer, you can hit me up off the list and I'll see if I separate our version so it works independently and I'll post it on gist for you.
If you want to upgrade though to python-oauth2, the biggest change is swapping out your imports to use oauth2 instead of oauth and removing the "OAuth" prefix on all the class names. For example: import oauth oauth.OAuthRequest(...) oauth.OAuthToken(...) becomes: import oauth2 oauth2.Request(...) oauth2.Token(...) etc... Most of the API that you care about is identical from there. The library has evolved a bit but it should be obvious and most of the public methods remained the same. In my fork, I've fixed a few issues and added some changes to support XAuth and a few other minor issues (like forcing Authentication headers on POSTs for Twitter). Zac Bowling @zbowling On Jun 3, 2010, at 6:37 PM, Yann Malet wrote: > Zac, > I would love to do this but I can't find any documentation on how to do Oauth > Echo with python-oauth2. I would gladly switch to python-ouath2 if I could > find some code showing How to use it to post a picture on twitpic : > http://dev.twitpic.com/docs/2/upload/ > > Any help would be greatly appreciated. > Regards, > --yml > > On Thu, Jun 3, 2010 at 7:41 PM, Zac Bowling <zbowl...@gmail.com> wrote: > It may not help fix your problem but I would recommend upgrading to the > python-oauth2 library. (Don't be confused by the name; it's not an oauth 2.0 > library, but just the next generation of the original oauth 1.0a library that > Leah Culver wrote). There are bunch of little issues with the original one > that don't follow the spec exactly that are fixed and it's not a difficult > upgrade (as long as your are not hosting an OAuth server of your own because > those interfaces changed considerably). > > http://github.com/zbowling/python-oauth2 (the fork I maintain with bunch of > twitter related fixes and workarounds) > or: > http://github.com/simplegeo/python-oauth2 (the official upstream) > > Zac Bowling > @zbowling > > On Jun 3, 2010, at 3:15 PM, Steve C wrote: > > > I just looked at your code briefly, but I believe the problem is this > > line: > > > > oauth_request = TwitpicOAuthRequest(http_method="POST", > > http_url=settings.TWITPIC_API_URL, > > > > The OAuth Request needs to be signed using the Twitter Endpoint > > (https://api.twitter.com/1/account/verify_credentials.json), not the > > Twitpic API URL. > > > > Try something like this: > > > > oauth_request = TwitpicOAuthRequest(http_method="GET", > > http_url="https://api.twitter.com/1/account/verify_credentials.json";, > > > > > > On Jun 3, 2:38 pm, yml <yann.ma...@gmail.com> wrote: > >> I would greatly appreciate any help. > >> Here it is the latest evolution of this piece of code : > >> > >> """ > >> class TwitpicOAuthRequest(OAuthRequest): > >> def to_header(self, realm='http://api.twitter.com/'): > >> headers = super(TwitpicOAuthRequest, > >> self).to_header(realm=realm) > >> return {'X-Verify-Credentials-Authorization': > >> headers['Authorization']} > >> > >> def post_photo(request): > >> if request.method == 'POST': > >> form = PhotoForm(request.POST, request.FILES) > >> if not request.session.get('twitter_access_token'): > >> return HttpResponse("Not authenticated") > >> if form.is_valid(): > >> access_token = request.session['twitter_access_token'] > >> > >> params = { > >> 'oauth_consumer_key': settings.TWITTER_CONSUMER_KEY, > >> 'oauth_signature_method':"HMAC-SHA1", > >> 'oauth_token':access_token.key, > >> 'oauth_timestamp':oauth.generate_timestamp(), > >> 'oauth_nonce':oauth.generate_nonce(), > >> 'oauth_version':'1.0' > >> } > >> > >> consumer = > >> oauth.OAuthConsumer(key=settings.TWITTER_CONSUMER_KEY, > >> > >> secret=settings.TWITTER_CONSUMER_SECRET) > >> token = oauth.OAuthToken(key=access_token.key, > >> secret=access_token.secret) > >> oauth_request = TwitpicOAuthRequest(http_method="GET", > >> > >> #http_url=settings.TWITPIC_API_URL, > >> > >> http_url=settings.TWITTER_VERIFY_CREDENTIALS, > >> parameters=params) > >> > >> signature=oauth_request.sign_request(OAuthSignatureMethod_HMAC_SHA1(), > >> consumer, > >> access_token) > >> > >> headers = oauth_request.to_header() > >> headers['X-Auth-Service-Provider'] = > >> settings.TWITTER_VERIFY_CREDENTIALS > >> > >> #with multipart_encode > >> values = [ > >> MultipartParam('key',value=settings.TWITPIC_API_KEY), > >> > >> MultipartParam('message',value=form.cleaned_data['message']), > >> MultipartParam('media', > >> filename='copine_moi.jpg', > >> filetype='image/jpeg', > >> fileobj=open("/home/yml/Desktop/ > >> copine_moi.jpg","rb")) > >> ] > >> > >> register_openers() > >> datagen, heads = multipart_encode(values) > >> headers.update(heads) > >> req = urllib2.Request(settings.TWITPIC_API_URL, datagen, > >> headers) > >> # Post to netcat -l -p 9000 > >> #req = urllib2.Request("http://127.0.0.1:9000";, datagen, > >> headers) > >> > >> #with urlencode > >> #values = {} > >> #values['key'] = MultipartParam(settings.TWITPIC_API_KEY) > >> #values['message'] = > >> MultipartParam(form.cleaned_data['message']) > >> #values['media'] = open("/home/yml/Desktop/ > >> copine_moi.jpg", "rb").read() > >> #data = urllib.urlencode(values) > >> #req = urllib2.Request(settings.TWITPIC_API_URL, data, > >> headers) > >> > >> response = urllib2.urlopen(req) > >> return HttpResponse("the photo is posted") > >> else: > >> form = PhotoForm(initial={"created_at":datetime.now()}) > >> > >> return render_to_response("twitter_integration/photo_form.html", > >> {"form":form,}, > >> > >> context_instance=RequestContext(request)) > >> """ > >> > >> On Jun 3, 11:20 am, yml <yann.ma...@gmail.com> wrote: > >> > >> > >> > >>> Hello, > >>> I am in the process of writing a python web app that should enable the > >>> user to post picture to twitpic using the Oauth Echo authorization > >>> mechanism. > >> > >>> The application is already able to post tweet using the Oauth > >>> authentication so the access_token is available to us in the session. > >> > >>> So my question to you guys is that it would be great if someone could > >>> point what is the issue in the code below or paste some sample code > >>> that upload a picture in python to twitpic. > >> > >>> """" > >>> # OauthRequest is from the python-oauth lib > >>> # I overide the to_header method to return a dict with the right key. > >> > >>> class TwitpicOAuthRequest(OAuthRequest): > >>> def to_header(self, realm='http://api.twitter.com/'): > >>> headers = super(TwitpicOAuthRequest, > >>> self).to_header(realm=realm) > >>> return {'X-Verify-Credentials-Authorization': > >>> headers['Authorization']} > >> > >>> def post_photo(request): > >>> if request.method == 'POST': > >>> form = PhotoForm(request.POST, request.FILES) > >>> if not request.session.get('twitter_access_token'): > >>> return HttpResponse("Not authenticated") > >>> if form.is_valid(): > >>> access_token = request.session['twitter_access_token'] > >> > >>> params = { > >>> 'oauth_consumer_key': settings.TWITTER_CONSUMER_KEY, > >>> 'oauth_signature_method':"HMAC-SHA1", > >>> 'oauth_token':access_token.key, > >>> 'oauth_timestamp':oauth.generate_timestamp(), > >>> 'oauth_nonce':oauth.generate_nonce(), > >>> 'oauth_version':'1.0' > >>> } > >> > >>> consumer = > >>> oauth.OAuthConsumer(key=settings.TWITTER_CONSUMER_KEY, > >> > >>> secret=settings.TWITTER_CONSUMER_SECRET) > >>> token = oauth.OAuthToken(key=access_token.key, > >>> secret=access_token.secret) > >>> oauth_request = TwitpicOAuthRequest(http_method="POST", > >> > >>> http_url=settings.TWITPIC_API_URL, > >>> parameters=params) > >> > >>> signature=oauth_request.build_signature(OAuthSignatureMethod_HMAC_SHA1(), > >>> consumer, > >>> access_token) > >> > >>> headers = oauth_request.to_header() > >>> headers['X-Auth-Service-Provider'] = 'https:// > >>> api.twitter.com/1/account/verify_credentials.json' > >>> headers['X-Verify-Credentials-Authorization'] += ', > >>> oauth_signature="%s"' %signature > >> > >>> values = {} > >>> values['key'] = settings.TWITPIC_API_KEY > >>> values['message'] = form.cleaned_data['message'] > >>> # the path to the file is hardcoded here in the future it > >>> will be taken from the from > >>> values['media'] = open("/home/yml/Desktop/copine_moi.jpg", > >>> "rb") > >>> register_openers() > >>> datagen, heads = multipart_encode(values) > >>> headers.update(heads) > >> > >>> req = urllib2.Request(settings.TWITPIC_API_URL, datagen, > >>> headers) > >>> response = urllib2.urlopen(req) > >> > >>> return HttpResponse("the photo is posted") > >>> else: > >>> form = PhotoForm(initial={"created_at":datetime.now()}) > >> > >>> return render_to_response("twitter_integration/photo_form.html", > >>> {"form":form,}, > >> > >>> context_instance=RequestContext(request)) > >>> """" > >
