I'm trying to use HTTP POST to submit user information on a University login page. To do so I run the postData() method below. The code posts the credentials and reads the response. Below the code I have shown what the response status line and response entity show. (I edited the username and password for security ).
It appears to execute since I get a response from the website, but I don't know how to interpret what it says or what I need to do to have a successful login. The website in question has a username field (id = user), password field (id = pass), and login button (id = submit). It is a secure website (https), but for now I'm not doing a SSL connection as I'm just trying to get this code working.
The immediate questions I have are: is it possible I need the SSL connection to make it work, and is Java an issue as mentioned in the response?
A little more background... This is done in a service, and it's the only task. If Java is the issue, how would I enable it without a webview? Can I somehow "click" the button to see where it takes me?
response.getStatusLine
response.getEntity().getContent()
It appears to execute since I get a response from the website, but I don't know how to interpret what it says or what I need to do to have a successful login. The website in question has a username field (id = user), password field (id = pass), and login button (id = submit). It is a secure website (https), but for now I'm not doing a SSL connection as I'm just trying to get this code working.
The immediate questions I have are: is it possible I need the SSL connection to make it work, and is Java an issue as mentioned in the response?
A little more background... This is done in a service, and it's the only task. If Java is the issue, how would I enable it without a webview? Can I somehow "click" the button to see where it takes me?
Code:
public void postData() {
// Create a new HttpClient and Post Header
HttpParams params = new BasicHttpParams();
params.setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
HttpClient httpclient = new DefaultHttpClient(params);
HttpPost httppost = new HttpPost("https://wiscmail.wisc.edu/login/");
TextView info = (TextView) findViewById(R.id.info);
EditText user = (EditText) findViewById(R.id.user);
EditText pass = (EditText) findViewById(R.id.pass);
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("user", user.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("pass", pass.getText().toString()));
//httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httppost.setHeader("Content-type", "application/x-www-form-urlencoded");
httppost.setHeader("Accept", "application/x-www-form-urlencoded");
AbstractHttpEntity ent=new UrlEncodedFormEntity(nameValuePairs, HTTP.UTF_8);
ent.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
ent.setContentEncoding("UTF-8");
httppost.setEntity(ent);
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
Log.v(TAG, response.getStatusLine().toString());
info.setText(response.getStatusLine().toString());
HttpEntity responseEntity = response.getEntity();
Log.v(TAG, responseEntity.toString());
String response_string = inputStreamToString(response.getEntity().getContent()).toString();
info.setText(response_string);
Log.v(TAG, response_string);
} catch (ClientProtocolException e) {
Log.v(TAG, "client protocol exception");
info.setText("client protocol exception");
} catch (IOException e) {
Log.v(TAG, "IO exception");
info.setText("IO exception");
}
}
// Fast Implementation
private StringBuilder inputStreamToString(InputStream is) {
String line = "";
StringBuilder total = new StringBuilder();
// Wrap a BufferedReader around the InputStream
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
// Read response until the end
try {
while ((line = rd.readLine()) != null) {
total.append(line);
}
} catch (IOException e) {
e.printStackTrace();
}
// Return full string
return total;
}
response.getStatusLine
Code:
HTTP/1.1 200 OK
response.getEntity().getContent()
Code:
<html><head></head><body onLoad="document.relay.submit()">
<form method=post action="https://login.wisc.edu/?appurl=wiscmail.wisc.edu/login"
name=relay><input type=hidden name=pubcookie_g_req
value="b25lPXdpc2NtYWlsLndpc2MuZWR1JnR3bz1XaXNjTWFpbCtMb2dpbiZ0aHJlZT0xJmZvdXI9YTUmZml2ZT1QT1NUJnNpeD13aXNjbWFpbC53aXNjLmVkdSZzZXZlbj1MMnh2WjJsdUx3PT0mZWlnaHQ9Jmhvc3RuYW1lPXdpc2NtYWlsLndpc2MuZWR1Jm5pbmU9MSZmaWxlPSZyZWZlcmVyPShudWxsKSZzZXNzX3JlPTAmcHJlX3Nlc3NfdG9rPTM5NjgzODc5MSZmbGFnPTA=">
<input type=hidden name=post_stuff value="user=username&pass=password">
<input type=hidden name=relay_url value="https://wiscmail.wisc.edu/PubCookie.reply">
<noscript><p align=center>You do not have Javascript turned on, please click the
button to continue.<p align=center><input type=submit name=go value=Continue>
</noscript></form></html>