Not able to consume oAuth api's using a java client

cdnadmin · ‎01-24-2014

This document was generated from CDN thread

Created by: Vinay Kanakath on 24-07-2012 06:00:57 PM
Hi,
i am trying to use aAuth on a local webex quad server instance. i am using a java client for this. below is the code i am using. i am always getting a 500 server error with a message saying missing security token.
i have tried a very similar code snippet in c# and it works, i get the consumer key and consumer secret. Can anyone tell me what is missing in the below code?


URL url =


new URL("http://f180373441956.il.bankofamerica.com:8080/api/quad/rest/management/apiconsumers"
);



//http://f180373441956.il.bankofamerica.com:8080/api/quad/rest/management/apiconsumers

HttpURLConnection conn =
(HttpURLConnection) url.openConnection();

conn.setRequestMethod(


"POST"
);
conn.setDoOutput(


true
);
conn.setDoInput(


true
);
conn.setUseCaches(


false
);
conn.setAllowUserInteraction(


false
);


conn.setRequestProperty(


"Content-Type"
,



"application/xml"
);
conn.setRequestProperty(


"Accept", "application/xml"
); 
conn.setRequestProperty(


"Authorization","Basic userid:password"
);




String xmlInput=


"<apiconsumer><callbackUrl>http://RNYXWTCRS11L1.corp.bankofamerica.com:8080</callbackUrl><description>Quad Mobile App</description><modifiedDate>1316741399291</modifiedDate><name>Quad Mobile App</name></apiconsumer>"
;
OutputStream out = conn.getOutputStream();

Writer writer =


new OutputStreamWriter(out, "UTF-8"
);
out.write(xmlInput.getBytes());
conn.connect();

　

System.


out.println("response code"
+conn.getResponseCode());
System.


out.println("response error "
+conn.getResponseMessage());
BufferedReader rd1 =


new
BufferedReader(



new
InputStreamReader(conn.getErrorStream()));
StringBuilder sb1 =


new
StringBuilder();
String line1;




while ((line1 = rd1.readLine()) != null
) {
sb1.append(line1);
}

System.


out
.println(sb1.toString());
BufferedReader rd =


new
BufferedReader(



new
InputStreamReader(conn.getInputStream()));
StringBuilder sb =


new
StringBuilder();
String line;




while ((line = rd.readLine()) != null
) {
sb.append(line);
}
rd.close();

conn.disconnect();
writer.close();
out.close();

System.


out
.println(sb.toString());

Subject: RE: Not able to consume oAuth api's using a java client
Replied by: Adrienne Moherek on 25-07-2012 05:40:50 PM
Hi Vinay,

This is the authorization part of the code that is not working for you:

conn.setRequestProperty(
"Authorization","Basic userid:password"
);

The username and password need to be encoded for this to work.

Thanks,
Adrienne

Subject: RE: Not able to consume oAuth api's using a java client
Replied by: Vinay Kanakath on 25-07-2012 08:02:49 PM
Hi Adrienne
will normal utf-8 encoding work or it needs to be base 64? reason i ask is when i set the the request header with a base 64 encoded value i get an Illegal character exception

Subject: RE: Not able to consume oAuth api's using a java client
Replied by: Adrienne Moherek on 27-07-2012 03:45:56 PM
Hi Vinay,

It needs to be base 64 encoded. I have not had that problem with Basic Authentication. It should look like a string of numbers and letters.

Example:

1Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==

Here's some info about Basic Authentication: http://en.wikipedia.org/wiki/Basic_access_authentication

Subject: RE: Not able to consume oAuth api's using a java client
Replied by: Vinay Kanakath on 02-08-2012 09:18:55 AM
Thanks Adrienne,forgot to add an update, this was resolved.
Cause:- turns out HttpUrConnection class has a bug with basic authentication. i changed the class to DefaultHttpClient and it now works