Hi,
Have bumped into this error message whilst updating my code to use the v1.1 API. To be fair, I think it was only working properly before with the v1.0 API by fluke, now things have been tightened up…
I’m using libauth to generate the authentication data, the actual requests are made using Wininet calls - HttpOpenRequest etc. As it stands, GET requests work fine (I can retrieve my timelines) but POST requests always come back with error:32.
I am 99% certain that the oauth data is correct because what I can do consistently is take the Authorization line which my code generates, along with the URL encoded POST data and paste it into a curl command line (using the same layout as Twitter’s OAUTH tool) and this works. So my guess is this is something to do with how the Wininet calls handle the data. Of course, this being SSL I can’t even sniff the packets to have a look but what I have been doing is using the HTTP interface to try and spot any differences. A typical curl request looks like this:
Hypertext Transfer Protocol
POST /1.1/statuses/update.json HTTP/1.1\r\n
User-Agent: curl/7.21.0 (i686-pc-linux-gnu) libcurl/7.16.4 OpenSSL/0.9.6i zlib/1.1.4\r\n
Host: api.twitter.com\r\n
Accept: /\r\n
[truncated] Authorization: OAuth oauth_consumer_key=“xxxxxxxxxxxxxxxx”, oauth_nonce=“iIOrLma9uJVIghY”, oauth_signature=“2JD9%2FgbmppfsGjBZmVQd2fucqk0%3D”, oauth_signature_method=“HMAC-SHA1”, oauth_timestamp=“1371302904”, oauth_token="
Content-Length: 32\r\n
Content-Type: application/x-www-form-urlencoded\r\n
\r\n
[Full request URI: http://api.twitter.com/1.1/statuses/update.json]
Line-based text data: application/x-www-form-urlencoded
status=somtext
I’ve made mine look as close to this as possible - notably adding in the Content-Type and Accept fields to the header & checked them on Wireshark. Has made zip all difference.
Here is the request from my code:
POST http://api.twitter.com/1.1/statuses/update.json HTTP/1.1\r\n
Accept: */*\r\n
[truncated] Authorization: OAuth oauth_consumer_key=xxxxxxxxxxxxxxxxx, oauth_nonce=iIOrLma9uJVIghY, oauth_signature=ohDzc6ULvbOsfVkXP8pxrU8izlU%3D, oauth_signature_method=HMAC-SHA1, oauth_timestamp=1371409596, oauth_token=
Content-Type: application/x-www-form-urlencoded\r\n
User-Agent: OAS Playout Twitter TrackLister (Mozilla)\r\n
Host: api.twitter.com\r\n
Content-Length: 58\r\n
Pragma: no-cache\r\n
Cookie: lang=en; guest_id=v1%3A130738749735889324\r\n
\r\n
[Full request URI: http://api.twitter.comhttp://api.twitter.com/1.1/statuses/update.json]
Line-based text data: application/x-www-form-urlencoded
status=sometext
Here is the relevant code chunk:
hInetConnect = InternetConnect ( hInetOpen,
TwitterHostName, // host (api.twitter.com)
INTERNET_DEFAULT_HTTPS_PORT, // port
NULL, // username
NULL, // passwd
INTERNET_SERVICE_HTTP, // want http
0, // no options
dContext ) ; // ?
if ( hInetConnect )
{
// issue the document request
hHttpRequest = HttpOpenRequest ( hInetConnect,
"POST", // verb = 'POST'
pUrl, // document name - https://api.twitter.com/1.1/statuses/update.json
NULL, // version = 'HTTP/1.1'
NULL, // referrer = none
AcceptTypes, // "*/*"
INTERNET_FLAG_SECURE |
INTERNET_FLAG_NO_CACHE_WRITE | INTERNET_FLAG_NO_AUTH | INTERNET_FLAG_RELOAD,
dContext ) ; // ?
if ( hHttpRequest )
{
// OauthHeader holds the "Authorization: oauth_consume_key=..."
strcat ( OauthHeader, "Content-Type: application/x-www-form-urlencoded\r\n" ) ;
HttpAddRequestHeaders ( hHttpRequest, OauthHeader, strlen(OauthHeader), 0 ) ;
if ( HttpSendRequest ( hHttpRequest,
NULL, // optional headers - none
0, // opt header length
TwitterBuf, // URL encoded status text
strlen(TwitterBuf) ) ) // opt data len
{
Any help appreciated as I’ve just about run out of things to try here.
Rgs,
Jon.
