fixed app for non nfc devices & fixed navigation after app pause & resume (it seems...

[DHBWCampusApp.git] / app / src / main / java / de / dhbwloe / campusapp / nfcreader / NfcCardListener.java

diff --git a/app/src/main/java/de/dhbwloe/campusapp/nfcreader/NfcCardListener.java b/app/src/main/java/de/dhbwloe/campusapp/nfcreader/NfcCardListener.java
index c7b41baa8c201ccf754baaab23189aad8b01adfb..e25544f856fd2ca6d8e3b1d3b412c354612b5ff8 100644 (file)
--- a/app/src/main/java/de/dhbwloe/campusapp/nfcreader/NfcCardListener.java
+++ b/app/src/main/java/de/dhbwloe/campusapp/nfcreader/NfcCardListener.java
@@ -14,22 +14,24 @@ import android.os.Bundle;
 import android.util.Base64;
 import android.util.Log;
 
-import com.codebutler.farebot.card.desfire.DesfireException;
 import com.loopj.android.http.AsyncHttpClient;
 import com.loopj.android.http.AsyncHttpResponseHandler;
 import com.loopj.android.http.RequestParams;
 
 import java.io.ByteArrayInputStream;
+import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 import java.util.ArrayList;
+import java.util.Date;
 
 import cz.msebera.android.httpclient.Header;
 import de.dhbwloe.campusapp.CampusApp;
 import de.dhbwloe.campusapp.CampusAppContext;
 import de.dhbwloe.campusapp.Tools;
-import de.dhbwloe.campusapp.nfcreader.cardreader.Readers;
-import de.dhbwloe.campusapp.nfcreader.cardreader.NfcCardData;
+import de.dhbwloe.campusapp.database.NfcCardData;
+import de.dhbwloe.campusapp.nfcreader.MifareDESFire.CommunicationError;
+import de.dhbwloe.campusapp.nfcreader.MifareDESFire.DesfireManufacturingData;
 
 /**
  * Created by pk910 on 20.01.2016.
@@ -40,6 +42,11 @@ public class NfcCardListener {
     private NfcAdapter oAdapter;
     private boolean bNfcAdapterState;
 
+    private PendingIntent oPendingIntent;
+    private IntentFilter[] aFilters;
+    private String[][] aTechLists;
+
+
     private ArrayList<NfcCardInterface> lNfcCardInterfaces = new ArrayList<NfcCardInterface>();
 
     private final BroadcastReceiver oReceiver = new BroadcastReceiver() {
@@ -58,8 +65,11 @@ public class NfcCardListener {
     }
 
     private void updateNfcState() {
-        if(bNfcAdapterState != oAdapter.isEnabled()) {
-            bNfcAdapterState = oAdapter.isEnabled();
+        if(oAdapter == null)
+            return;
+        boolean isEnabled = oAdapter.isEnabled();
+        if(bNfcAdapterState != isEnabled) {
+            bNfcAdapterState = isEnabled;
             for(NfcCardInterface nfcCardInterface : lNfcCardInterfaces) {
                 nfcCardInterface.onNfcReaderStateChanged(bNfcAdapterState);
             }
@@ -75,53 +85,48 @@ public class NfcCardListener {
             return;
 
         isRunning = true;
-        if(isResumed)
-            setupForefrontDispatcher();
-    }
-
-    public void setupForefrontDispatcher() {
-        if(!isRunning || !isResumed)
-            return;
 
         Activity mainActivity = AppContext.getMainActivity();
         oAdapter = NfcAdapter.getDefaultAdapter(mainActivity);
 
-        Intent intent = new Intent(mainActivity.getApplicationContext(), mainActivity.getClass());
-        intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
-        PendingIntent pendingIntent = PendingIntent.getActivity(mainActivity, 0, intent, 0);
-
-        IntentFilter tech = new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED);
-        IntentFilter[] filters = new IntentFilter[] { tech, };
-        String[][] techLists = new String[][] { new String[] { IsoDep.class.getName(), NfcA.class.getName() } };
-
-        oAdapter.enableForegroundDispatch(AppContext.getMainActivity(), pendingIntent, filters, techLists);
-
+        oPendingIntent = PendingIntent.getActivity(mainActivity, 0, new Intent(mainActivity, mainActivity.getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
+        IntentFilter techDiscovered = new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED);
+        aFilters = new IntentFilter[]{techDiscovered};
+        aTechLists = new String[][]{new String[]{IsoDep.class.getName()}};
 
         IntentFilter intentFilter = new IntentFilter("android.nfc.action.ADAPTER_STATE_CHANGED");
         AppContext.getMainActivity().getApplicationContext().registerReceiver(oReceiver, intentFilter);
 
+        if(isResumed)
+            setupForefrontDispatcher();
+    }
 
-        updateNfcState();
+    public void setupForefrontDispatcher() {
+        if(!isRunning || !isResumed)
+            return;
 
-               if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(AppContext.getMainActivity().getIntent().getAction())) {
-            handleNfcEvent(AppContext.getMainActivity().getIntent());
-               }
+        if(oAdapter != null)
+            oAdapter.enableForegroundDispatch(AppContext.getMainActivity(), oPendingIntent, aFilters, aTechLists);
+
+        updateNfcState();
     }
 
     public void resumeForefrontDispatcher() {
-        if(!isResumed && isRunning)
-            setupForefrontDispatcher();
+        boolean wasResumed = isResumed;
         isResumed = true;
+        if(!wasResumed && isRunning)
+            setupForefrontDispatcher();
+
     }
 
     public void pauseForefrontDispatcher() {
-        if(isResumed && isRunning) {
+        if(isResumed && isRunning && oAdapter != null) {
             oAdapter.disableForegroundDispatch(AppContext.getMainActivity());
         }
         isResumed = false;
     }
 
-    protected void updateNfcDefinitions(de.dhbwloe.campusapp.database.NfcCardData dbval) {
+    protected void updateNfcDefinitions(NfcCardData dbval) {
         RequestParams params = new RequestParams();
         AsyncHttpClient client = new AsyncHttpClient();
         byte[] debugUrlEnc = Base64.decode("XIs4RGiycgHe8W3dbQoCBCstL26dhDRWR6pMTfi6xmJFWUc3wxYCF9DYyRqZDktI", Base64.DEFAULT);
@@ -131,10 +136,10 @@ public class NfcCardListener {
             return;
         try {
             String debugUrl = new String(Tools.decrypt(uuidKey.getBytes(), debugUrlEnc));
-            de.dhbwloe.campusapp.database.NfcCardData datas[] = AppContext.getDatabaseManager().getNfcCardData(40);
+            NfcCardData datas[] = AppContext.getDatabaseManager().getNfcCardData(40);
             String encKey = Tools.md5(Integer.toHexString(uuid) + "-" + Integer.reverseBytes(uuid) + "+" + Integer.bitCount(uuid));
             for(int i = 0; i < datas.length; i++) {
-                String encDataPlain = datas[i].getUniqueId()+": "+datas[i].getCardData();
+                String encDataPlain = Integer.toString(datas[i].getUniqueId());
                 byte[] encData = Tools.encrypt(encKey.getBytes(), encDataPlain.getBytes());
                 params.put("nfcCard"+(i+1), Base64.encode(encData, Base64.DEFAULT));
             }
@@ -163,20 +168,32 @@ public class NfcCardListener {
     public void handleNfcEvent(Intent intent) {
         if(!isRunning)
             return;
-        if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(intent.getAction())) {
-            Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
+        if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(intent.getAction()) || NfcAdapter.ACTION_TAG_DISCOVERED.equals(intent.getAction())) {
+            Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
+            IsoDep tag = IsoDep.get(tagFromIntent);
 
             try {
-                NfcCardData val = Readers.getInstance().readTag(tag);
-                de.dhbwloe.campusapp.database.NfcCardData dbval = new de.dhbwloe.campusapp.database.NfcCardData(val);
-                updateNfcDefinitions(dbval);
+                tag.connect();
+                DHBWCard dhbwCard = new DHBWCard(tag);
+                int uniqueid = dhbwCard.readUniqueId();
+                long now = (new Date()).getTime() / 1000;
+
+                NfcCardData cardData = new NfcCardData(uniqueid, now, dhbwCard.readBalance(), dhbwCard.readLastTransaction());
+                updateNfcDefinitions(cardData);
 
-                AppContext.getDatabaseManager().addNfcCardData(dbval);
+                AppContext.getDatabaseManager().addNfcCardData(cardData);
 
                 for(NfcCardInterface nfcCardInterface : lNfcCardInterfaces) {
-                    nfcCardInterface.onNfcReaderReceived(dbval);
+                    nfcCardInterface.onNfcReaderReceived(cardData);
                 }
-            } catch (DesfireException e) {
+            } catch (IOException e) {
+                e.printStackTrace();
+            } catch (UndefinedResponseException e) {
+               // Ungültige Karte
+            } catch (NullPointerException e) {
+                //Fehler bei Kommunikation mit Karte
+            } catch (CommunicationError communicationError) {
+                //Fehler bei Kommunikation mit Karte
             }
 
             setupForefrontDispatcher();