Android c2dm server simulator on emulator

Question

I am following android c2dm example from following link: http://www.vogella.de/articles/AndroidCloudToDeviceMessaging/article.html

I have implemented the client side successfully and have got my registration id. but i am having some issues in server end using the same example actually the issue is in getAuthentification method and i am getting following exception at HttpResponse response = client.execute(post).

java.net.UnknownHostException: www.google.com

Following is my code:

    HttpClient client = new DefaultHttpClient();
    HttpPost post = new HttpPost(
            "https://www.google.com/accounts/ClientLogin");

    try {

        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
        nameValuePairs.add(new BasicNameValuePair("Email","you....@gmail.com"));
        nameValuePairs.add(new BasicNameValuePair("Passwd","*********"));
        nameValuePairs.add(new BasicNameValuePair("accountType", "GOOGLE"));
        nameValuePairs.add(new BasicNameValuePair("source",
                "Google-cURL-Example"));
        nameValuePairs.add(new BasicNameValuePair("service", "ac2dm"));

        post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
        HttpResponse response = client.execute(post);
        BufferedReader rd = new BufferedReader(new InputStreamReader(
                response.getEntity().getContent()));

        String line = "";
        while ((line = rd.readLine()) != null) {
            Log.e("HttpResponse", line);
            if (line.startsWith("Auth=")) {
                Editor edit = prefManager.edit();
                edit.putString(AUTH, line.substring(5));
                edit.commit();
                String s = prefManager.getString(AUTH, "n/a");
                Toast.makeText(this, s, Toast.LENGTH_LONG).show();
            }

        }
    } catch (IOException e) {
        e.printStackTrace();
    }

Please help me? Your help would be highly appreciable. Thanks,

Answer 1

I had this exact same issue last week. When the C2DM servers return a 302 Moved (www.google.com) what they ACTUALLY mean is the authentication failed. The problem is almost certainly your authentication code, so re-check the code you're using to get the auth code from the ClientLogin API. Note that the HTTP response contains a bunch of information, not just the auth code, so you do need to parse it correctly (that was my mistake).

public static String getClientLoginAuthToken(String email, String password) {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("https://www.google.com/accounts/ClientLogin");
try {

List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("Email", email));
nameValuePairs.add(new BasicNameValuePair("Passwd", password));
nameValuePairs.add(new BasicNameValuePair("accountType", "GOOGLE"));
nameValuePairs.add(new BasicNameValuePair("source","Google-cURL-Example"));
nameValuePairs.add(new BasicNameValuePair("service", "ac2dm"));

post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = client.execute(post);
BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

String line = "";
while ((line = rd.readLine()) != null) {
    if (line.startsWith("Auth=")) {
        return line.substring(5);
    }
}
} catch (IOException e) {
    e.printStackTrace();
}
    Log.e(TAG, "Failed to get C2DM auth code");
    return "";
}