AsyncHttpClient with SSL protocol

Question

I'm trying to create my first Android app and I have an issue.

I have web service with https protocol, to get the data from the server I use AsyncHttpClient library,

it has been working with http, but once I've changed it to https it's gives me an error:

No peer certificate

I did some research online, I found some advice how to fix it but I was abel to make it works.

This are just some of the links I tried: link 1 link 2

My code to call a web service:

    AsyncHttpClient client = new AsyncHttpClient();

    client.get(QUERY_URL,
    new JsonHttpResponseHandler() {

            @Override
            public void onSuccess(JSONObject jsonObject) {

                Log.d("test", jsonObject.toString());
            }

            @Override
            public void onFailure(int statusCode, Throwable throwable, JSONObject error) {

                Log.e("test", "Error: " + statusCode + " " + throwable.getMessage());
            }
        });

Maybe there is some other library which you recommend for calling https async?

score 1 · Answer 1 · edited Nov 10 '21 at 16:13

This is the code I use for SSL networking:

private class MobHawkCheck extends AsyncTask<String, Void, JSONObject> {

        protected JSONObject doInBackground(String... params) {
            JSONObject json = null;
            try {
                // Load CAs from an InputStream
                // (could be from a resource or ByteArrayInputStream or ...)
                CertificateFactory cf = CertificateFactory.getInstance("X.509");
                // From https://www.washington.edu/itconnect/security/ca/load-der.crt
                InputStream cert = mActivity.getResources().openRawResource(R.raw.mycertificate);
                InputStream caInput = new BufferedInputStream(cert);
                Certificate ca;
                try {
                    ca = cf.generateCertificate(caInput);
                    System.out.println("ca=" + ((X509Certificate) ca).getSubjectDN());
                } finally {
                    caInput.close();
                }
                // Create a KeyStore containing our trusted CAs
                String keyStoreType = KeyStore.getDefaultType();
                KeyStore keyStore = KeyStore.getInstance(keyStoreType);
                keyStore.load(null, null);
                keyStore.setCertificateEntry("ca", ca);

                // Create a TrustManager that trusts the CAs in our KeyStore
                String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
                TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
                tmf.init(keyStore);

                // Create an SSLContext that uses our TrustManager
                SSLContext context = SSLContext.getInstance("TLS");
                context.init(null, tmf.getTrustManagers(), null);

                // Tell the URLConnection to use a SocketFactory from our SSLContext
                URL url = new URL("https://mysecureurl.com");
                HttpsURLConnection urlConnection =
                        (HttpsURLConnection)url.openConnection();
                urlConnection.setSSLSocketFactory(context.getSocketFactory());

                BufferedReader r = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
                StringBuilder total = new StringBuilder();
                String line;
                while ((line = r.readLine()) != null) {
                    total.append(line);
                }
                json = new JSONObject(total.toString());
            } catch (IOException e) {
                e.printStackTrace();
            } catch (JSONException e) {
                e.printStackTrace();
            } catch (KeyManagementException e) {
                e.printStackTrace();
            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            } catch (KeyStoreException e) {
                e.printStackTrace();
            } catch (CertificateException e) {
                e.printStackTrace();
            }
            return json;
        }

        protected void onPostExecute(JSONObject result) {
            //TODO parse the result JSONObject
        }
    }

Take note that I use my own .crt file. You should generate yours with the data of your server certificate.

Can you add example how do you call this class? Do you know how can I get the cert file (.crt) if I haven't got access to the server, I just call the server? — Greg, Feb 26 '14 at 15:47
@Greg you can easily do it following this question http://superuser.com/questions/97201/how-to-save-a-remote-server-ssl-certificate-locally-as-a-file the second answer should be the right one because you don't have access to the server. I call that function like any other AsyncTask new MobHawkCheck().execute(); — reixa, Feb 26 '14 at 16:22
I tried your solution but I have an error, this is just part of it: FATAL EXCEPTION: AsyncTask #1 An error occured while executing doInBackground() Can't create handler inside thread that has not called Looper.prepare() — Greg, Feb 26 '14 at 16:37
That´s because in my code I parse the result from server and then send a message to a handler on postExecute. Just remove that and parse it you way. — reixa, Feb 26 '14 at 16:40
In onPostExecute I commented out your code and now there is just Lod.d("test", result); line and there is this error after I run the code. — Greg, Feb 26 '14 at 16:41
There´s no other reference to the Handler in the code. Have you cleaned your project before running it on the device/emulator? — reixa, Feb 26 '14 at 16:48
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/48501/discussion-between-axierjhtjz-and-greg) — reixa, Feb 26 '14 at 16:48

AsyncHttpClient with SSL protocol

1 Answers1