Hey everyone,
I'm developing an Android app which needs to perform an HTTPPost to
get a token back. Then use that token for subsequent calls. When I
perform the initial call to get the token, it throws an exception:
org.apache.http.auth.MalformedChallengeException: Authentication
challenge is empty
Here is my code:
DefaultHttpClient httpclient = new DefaultHttpClient();
httpclient.getCredentialsProvider().setCredentials(new
AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT), new
UsernamePasswordCredentials("username", "password"));
HttpPost httppost = new HttpPost(authenticationURL);
httppost.addHeader("app_key", app_key);
String strResponse = "";
try {
HttpResponse response = httpclient.execute(httppost); <---
exception thrown here
HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream instream = entity.getContent();
strResponse = convertStreamToString(instream);
instream.close();
}
JSONObject jObject=new JSONObject(strResponse);
wrapAccessToken = jObject.getString("wrap_access_token");
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
I googled "Authentication challenge is empty", and one this website:
http://fmpwizard-scala.posterous.com/using-apache-httpclient-authentication-in-sca
he had a similar problem. He determined that his web server requires
preemptive authentication. Which I believe ours does too. I tried
implementing what he did, and still, no dice.
I've hard coded the token in other requests, and I am able to perform
HTTPGet calls.
What am I doing wrong? What is the Authentication Challenge that I'm
missing?
Thanks in advance
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