I am working on an application that downloads data from a web server. It seems that loading data without any problems at the beginning, but a few days ago I start to get these exceptions: javax.net.ssl.SSLException: Read error: ssl=0x7a6588: I/O error during system call, Connection reset by peer and I'm not sure what the cause of this problem is and how I can fix it. Here is the entire LogCat :
12-12 11:43:27.950: W/System.err(22010): javax.net.ssl.SSLException: Read error: ssl=0x7a6588: I/O error during system call, Connection reset by peer 12-12 11:43:27.960: W/System.err(22010): at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_read(Native Method) 12-12 11:43:27.960: W/System.err(22010): at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl$SSLInputStream.read(OpenSSLSocketImpl.java:788) 12-12 11:43:27.960: W/System.err(22010): at org.apache.harmony.luni.internal.net.www.protocol.http.ChunkedInputStream.read(ChunkedInputStream.java:50) 12-12 11:43:27.960: W/System.err(22010): at java.io.InputStream.read(InputStream.java:157) 12-12 11:43:27.960: W/System.err(22010): at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:225) 12-12 11:43:27.960: W/System.err(22010): at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:178) 12-12 11:43:27.960: W/System.err(22010): at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:174) 12-12 11:43:27.960: W/System.err(22010): at java.io.BufferedInputStream.read(BufferedInputStream.java:319) 12-12 11:43:27.970: W/System.err(22010): at java.io.FilterInputStream.read(FilterInputStream.java:133) 12-12 11:43:27.970: W/System.err(22010): at com.stampii.stampii.synchronization.Synchronization.UseHttpsConnection(Synchronization.java:1367) 12-12 11:43:27.970: W/System.err(22010): at com.stampii.stampii.synchronization.Synchronization$ActivateCollection.doInBackground(Synchronization.java:613) 12-12 11:43:27.970: W/System.err(22010): at com.stampii.stampii.synchronization.Synchronization$ActivateCollection.doInBackground(Synchronization.java:1) 12-12 11:43:27.970: W/System.err(22010): at android.os.AsyncTask$2.call(AsyncTask.java:185) 12-12 11:43:27.970: W/System.err(22010): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 12-12 11:43:27.970: W/System.err(22010): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 12-12 11:43:27.970: W/System.err(22010): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 12-12 11:43:27.970: W/System.err(22010): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 12-12 11:43:27.970: W/System.err(22010): at java.lang.Thread.run(Thread.java:1027)
This is what I got using the UseHttpsConnection method:
public void UseHttpsConnection(String url, String charset, String query) { try { final TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() { @Override public void checkClientTrusted( final X509Certificate[] chain, final String authType ) { } @Override public void checkServerTrusted( final X509Certificate[] chain, final String authType ) { } @Override public X509Certificate[] getAcceptedIssuers() { return null; } } }; // Install the all-trusting trust manager final SSLContext sslContext = SSLContext.getInstance( "TLS" ); sslContext.init( null, trustAllCerts, new java.security.SecureRandom() ); // Create an ssl socket factory with our all-trusting manager final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory(); if (url.startsWith("https://")) { HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier(){ public boolean verify(String hostname, SSLSession session) { return true; }}); } System.setProperty("http.keepAlive", "false"); HttpsURLConnection connection = (HttpsURLConnection) new URL(url).openConnection(); connection.setSSLSocketFactory( sslSocketFactory ); connection.setDoOutput(true); connection.setConnectTimeout(15000 /* milliseconds */ ); connection.setRequestMethod("POST"); connection.setRequestProperty("Charset", charset); connection.setRequestProperty("Content-Type","application/x-www-form-urlencoded;charset=" + charset); OutputStream output = null; try { output = connection.getOutputStream(); output.write(query.getBytes(charset)); } catch (IOException e) { e.printStackTrace(); showError2("Check your network settings!"); } finally { if (output != null) try { output.close(); } catch (IOException logOrIgnore) { logOrIgnore.printStackTrace(); } } int status = ((HttpsURLConnection) connection).getResponseCode(); Log.d("", "Status : " + status); for (Entry<String, List<String>> header : connection .getHeaderFields().entrySet()) { Log.d("Headers","Headers : " + header.getKey() + "="+ header.getValue()); } InputStream response = new BufferedInputStream(connection.getInputStream()); int bytesRead = -1; byte[] buffer = new byte[30 * 1024]; while ((bytesRead = response.read(buffer)) > 0) { byte[] buffer2 = new byte[bytesRead]; System.arraycopy(buffer, 0, buffer2, 0, bytesRead); handleDataFromSync(buffer2); } connection.disconnect(); } catch (IOException e) { e.printStackTrace(); showError2("Synchronization failed!Please try again."); } catch (KeyManagementException e) { e.printStackTrace(); showError2("Error occured.Please try again."); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); showError2("Error occured.Please try again."); } }
And here is my AsyncTask, which I use to connect and download data:
public class DeactivateCollection extends AsyncTask <Context, Integer, Void> { @Override protected Void doInBackground(Context... arrContext) { try { String charset = "UTF-8"; hash = getAuthHash(); SharedPreferences lastUser = PreferenceManager .getDefaultSharedPreferences(Synchronization.this); int userId = lastUser.getInt("lastUser", 1); systemDbHelper = new SystemDatabaseHelper(Synchronization.this, null, 1); systemDbHelper.initialize(Synchronization.this); String sql = "SELECT dbTimestamp FROM users WHERE objectId=" + userId; Cursor cursor = systemDbHelper.executeSQLQuery(sql); if (cursor.getCount() < 0) { cursor.close(); } else if (cursor.getCount() > 0) { cursor.moveToFirst(); timeStamp = cursor.getString(cursor.getColumnIndex("dbTimestamp")); Log.d("", "timeStamp : " + timeStamp); } String query = String.format("debug_data=%s&" + "client_auth_hash=%s&" + "timestamp=%s&" + "deactivate_collections=%s&" + "client_api_ver=%s&" + "set_locale=%s&" + "device_os_type=%s&" + "device_sync_type=%s&" + "device_identification_string=%s&" + "device_identificator=%s&" + "device_resolution=%s", URLEncoder.encode("1", charset), URLEncoder.encode(hash, charset), URLEncoder.encode(timeStamp, charset), URLEncoder.encode(Integer.toString(deac), charset), URLEncoder.encode(clientApiVersion, charset), URLEncoder.encode(locale, charset), URLEncoder.encode(version, charset), URLEncoder.encode("14", charset), URLEncoder.encode(version, charset), URLEncoder.encode(deviceId, charset), URLEncoder.encode(resolution, charset)); Log.e("","hash : "+hash); Log.e("","deactivate : "+Integer.toString(deac)); SharedPreferences useSSLConnection = PreferenceManager.getDefaultSharedPreferences(Synchronization.this); boolean useSSl = useSSLConnection.getBoolean("UseSSl", true); if (useSSl) { UseHttpsConnection(url, charset, query); } else { UseHttpConnection(url, charset, query); } } catch (Exception e) { e.printStackTrace(); } return null; } @Override protected void onProgressUpdate(Integer... progress) { Log.d("","ON PROGRESS UPDATE"); } @Override protected void onCancelled() { Log.d("","ON CANCELLED"); } @Override protected void onPreExecute() { Log.d("","ON PRE EXECUTE"); } @Override protected void onPostExecute(Void v) { Log.d("","ON POST EXECUTE"); } }
So, does anyone have an idea how to handle this exception so that I can load the whole data without any exceptions. Or how can I fix it if this is not possible.
Thanks in advance!