Java tutorial
/* * Cos android client for Cozy Cloud * * Copyright (C) 2016 Hamza Abdelkebir * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package eu.codeplumbers.cosi.services; import android.Manifest; import android.app.IntentService; import android.app.NotificationManager; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.database.Cursor; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.provider.CallLog; import android.support.v4.app.ActivityCompat; import android.support.v4.content.WakefulBroadcastReceiver; import android.support.v7.app.NotificationCompat; import android.util.Base64; import android.util.Log; import org.apache.commons.io.IOUtils; import org.greenrobot.eventbus.EventBus; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import java.io.BufferedInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.StringWriter; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.ProtocolException; import java.net.URL; import java.util.ArrayList; import java.util.List; import eu.codeplumbers.cosi.R; import eu.codeplumbers.cosi.db.models.Call; import eu.codeplumbers.cosi.db.models.Device; import eu.codeplumbers.cosi.services.events.CallSyncEvent; import eu.codeplumbers.cosi.utils.DateUtils; import static eu.codeplumbers.cosi.utils.Constants.REFRESH; import static eu.codeplumbers.cosi.utils.Constants.SERVICE_ERROR; import static eu.codeplumbers.cosi.utils.Constants.SYNC_MESSAGE; /** * Created by thor on 10/29/16. */ public class CosiCallService extends IntentService { private List<Call> allCalls; private String errorMessage; private String authHeader; private String designUrl; private String syncUrl; private int notification_id = 1338; private NotificationManager mNotifyManager; private NotificationCompat.Builder mBuilder; private boolean mSyncRunning; private boolean stopSync; public CosiCallService() { super("CosiCallService"); stopSync = false; mSyncRunning = false; } public CosiCallService(String name) { super(name); } @Override protected void onHandleIntent(Intent intent) { // Do the task here Log.i(CosiCallService.class.getName(), "Cosi Service running"); // Release the wake lock provided by the WakefulBroadcastReceiver. WakefulBroadcastReceiver.completeWakefulIntent(intent); allCalls = new ArrayList<>(); Device device = Device.registeredDevice(); // cozy register device url designUrl = device.getUrl() + "/ds-api/request/call/all/"; syncUrl = device.getUrl() + "/ds-api/data/"; // concatenate username and password with colon for authentication final String credentials = device.getLogin() + ":" + device.getPassword(); authHeader = "Basic " + Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP); showNotification(); if (isNetworkAvailable()) { try { // read local sms log first readCallLog(); EventBus.getDefault().post(new CallSyncEvent(SYNC_MESSAGE, "Getting remote calls from Cozy...")); getRemoteCalls(); mBuilder.setContentText(getString(R.string.lbl_sms_sync_done)); mBuilder.setProgress(0, 0, false); mNotifyManager.notify(notification_id, mBuilder.build()); if (!allCalls.isEmpty()) { mNotifyManager.cancel(notification_id); sendChangesToCozy(); EventBus.getDefault().post(new CallSyncEvent(REFRESH, "Sync OK")); } else { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, "Sync failed")); } } catch (Exception e) { e.printStackTrace(); mSyncRunning = false; EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); } } else { mSyncRunning = false; EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, "No Internet connection")); mBuilder.setContentText("Sync failed because no Internet connection was available"); mNotifyManager.notify(notification_id, mBuilder.build()); } } /** * Read phone call log and update app database */ private void readCallLog() { //Fetches the complete call log in descending order. i.e recent calls appears first. if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_CALL_LOG) == PackageManager.PERMISSION_GRANTED) { Cursor c = getContentResolver().query(CallLog.Calls.CONTENT_URI, null, null, null, CallLog.Calls.DATE + " DESC"); int totalCalls = c.getCount(); EventBus.getDefault() .post(new CallSyncEvent(SYNC_MESSAGE, "Reading phone log: " + c.getCount() + " calls...")); if (c.moveToFirst()) { for (int i = 0; i < totalCalls; i++) { EventBus.getDefault() .post(new CallSyncEvent(SYNC_MESSAGE, "Local call " + i + "/" + totalCalls + "...")); String callerID = c.getString(c.getColumnIndex(CallLog.Calls._ID)); String callerNumber = c.getString(c.getColumnIndex(CallLog.Calls.NUMBER)); long callDateandTime = c.getLong(c.getColumnIndex(CallLog.Calls.DATE)); long callDuration = c.getLong(c.getColumnIndex(CallLog.Calls.DURATION)); int callType = c.getInt(c.getColumnIndex(CallLog.Calls.TYPE)); Call call = Call.getByIdNumberDate(callerID, callerNumber, callDateandTime); if (call == null) { call = new Call(); } call.setRemoteId( (call.getRemoteId() != "" && call.getRemoteId() != null) ? call.getRemoteId() : ""); call.setCallerId(callerID); call.setCallerNumber(callerNumber); call.setDateAndTime(DateUtils.formatDate(callDateandTime)); call.setType(callType); call.setDuration(callDuration); boolean hasDevice = call.getDeviceId() != "" && call.getDeviceId() != null; call.setDeviceId(hasDevice ? call.getDeviceId() : Device.registeredDevice().getLogin()); call.save(); allCalls.add(call); c.moveToNext(); } } c.close(); } else { EventBus.getDefault() .post(new CallSyncEvent(SERVICE_ERROR, getString(R.string.permission_denied_call_log))); } } /** * Make remote request to get all calls stored in Cozy */ public String getRemoteCalls() { URL urlO = null; try { urlO = new URL(designUrl); HttpURLConnection conn = (HttpURLConnection) urlO.openConnection(); conn.setConnectTimeout(5000); conn.setRequestProperty("Content-Type", "application/json; charset=UTF-8"); conn.setRequestProperty("Authorization", authHeader); conn.setDoInput(true); conn.setRequestMethod("POST"); // read the response int status = conn.getResponseCode(); InputStream in = null; if (status >= HttpURLConnection.HTTP_BAD_REQUEST) { in = conn.getErrorStream(); } else { in = conn.getInputStream(); } StringWriter writer = new StringWriter(); IOUtils.copy(in, writer, "UTF-8"); String result = writer.toString(); JSONArray jsonArray = new JSONArray(result); if (jsonArray != null) { if (jsonArray.length() == 0) { EventBus.getDefault().post(new CallSyncEvent(SYNC_MESSAGE, "Your Cozy has no calls stored.")); Call.setAllUnsynced(); } else { for (int i = 0; i < jsonArray.length(); i++) { EventBus.getDefault().post(new CallSyncEvent(SYNC_MESSAGE, "Reading calls on Cozy " + i + "/" + jsonArray.length() + "...")); JSONObject callJson = jsonArray.getJSONObject(i).getJSONObject("value"); Call call = Call.getByRemoteId(callJson.get("_id").toString()); if (call == null) { call = new Call(callJson); } else { call.setRemoteId(callJson.getString("_id")); call.setCallerId(callJson.getString("callerId")); call.setCallerNumber(callJson.getString("callerNumber")); call.setDuration(callJson.getLong("duration")); call.setDateAndTime(callJson.getString("dateAndTime")); call.setType(callJson.getInt("type")); } call.save(); allCalls.add(call); } } } else { errorMessage = new JSONObject(result).getString("error"); EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, errorMessage)); } in.close(); conn.disconnect(); } catch (MalformedURLException e) { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); stopSelf(); } catch (ProtocolException e) { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); stopSelf(); } catch (IOException e) { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); stopSelf(); } catch (JSONException e) { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); stopSelf(); } return errorMessage; } public void sendChangesToCozy() { List<Call> unSyncedCalls = Call.getAllUnsynced(); int i = 0; for (Call call : unSyncedCalls) { URL urlO = null; try { JSONObject jsonObject = call.toJsonObject(); mBuilder.setProgress(unSyncedCalls.size(), i, false); mBuilder.setContentText("Syncing " + jsonObject.getString("docType") + ":"); mNotifyManager.notify(notification_id, mBuilder.build()); EventBus.getDefault() .post(new CallSyncEvent(SYNC_MESSAGE, getString(R.string.lbl_calls_send_changes))); String remoteId = jsonObject.getString("remoteId"); String requestMethod = ""; if (remoteId.isEmpty()) { urlO = new URL(syncUrl); requestMethod = "POST"; } else { urlO = new URL(syncUrl + remoteId + "/"); requestMethod = "PUT"; } HttpURLConnection conn = (HttpURLConnection) urlO.openConnection(); conn.setConnectTimeout(5000); conn.setRequestProperty("Content-Type", "application/json; charset=UTF-8"); conn.setRequestProperty("Authorization", authHeader); conn.setDoOutput(true); conn.setDoInput(true); conn.setRequestMethod(requestMethod); // set request body jsonObject.remove("remoteId"); long objectId = jsonObject.getLong("id"); jsonObject.remove("id"); OutputStream os = conn.getOutputStream(); os.write(jsonObject.toString().getBytes("UTF-8")); os.flush(); // read the response InputStream in = new BufferedInputStream(conn.getInputStream()); StringWriter writer = new StringWriter(); IOUtils.copy(in, writer, "UTF-8"); String result = writer.toString(); JSONObject jsonObjectResult = new JSONObject(result); if (jsonObjectResult != null && jsonObjectResult.has("_id")) { result = jsonObjectResult.getString("_id"); call.setRemoteId(result); call.save(); } in.close(); conn.disconnect(); } catch (MalformedURLException e) { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); stopSelf(); } catch (ProtocolException e) { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); stopSelf(); } catch (IOException e) { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); stopSelf(); } catch (JSONException e) { EventBus.getDefault().post(new CallSyncEvent(SERVICE_ERROR, e.getLocalizedMessage())); stopSelf(); } i++; } } private boolean isNetworkAvailable() { ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService( Context.CONNECTIVITY_SERVICE); NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo(); return activeNetworkInfo != null && activeNetworkInfo.isConnected(); } public void showNotification() { mNotifyManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); mBuilder = new NotificationCompat.Builder(this); mBuilder.setContentTitle(getString(R.string.lbl_calls)) .setContentText(getString(R.string.lbl_notes_ongoing_sync)) .setSmallIcon(R.drawable.ic_call_black_24dp).setOngoing(true); } }