Renamed classes

[YkNeoCR.git] / src / org / average / nfcauthcr / Enroll.java

diff --git a/src/org/average/nfcauthcr/Enroll.java b/src/org/average/nfcauthcr/Enroll.java
new file mode 100644 (file)
index 0000000..9f9d535
--- /dev/null
+++ b/src/org/average/nfcauthcr/Enroll.java
@@ -0,0 +1,143 @@
+package org.average.nfcauthcr;
+
+import java.util.Random;
+
+import android.os.Bundle;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.preference.PreferenceManager;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+import android.content.DialogInterface;
+import android.util.Log;
+import android.view.View;
+import android.widget.TextView;
+import android.widget.RadioButton;
+
+import org.average.nfcauthcr.Check;
+
+public class Enroll extends Activity {
+
+       private final String TAG = getClass().getName();
+
+       private static boolean waitingForResult = false;
+       private static SharedPreferences prefs;
+       private static int slot;
+
+       @Override
+       protected void onCreate(Bundle savedInstanceState)
+       {
+               super.onCreate(savedInstanceState);
+               Log.v(TAG, "Starting");
+               prefs = PreferenceManager.getDefaultSharedPreferences(this);
+       }
+
+       @Override
+       protected void onResume() {
+               super.onResume();
+               setContentView(R.layout.main);
+               slot = prefs.getInt("slot_number", -1);
+               Log.v(TAG, "found saved slot value " + slot);
+               RadioButton btn = null;
+               switch (slot) {
+               case 1: btn = (RadioButton)findViewById(R.id.slot_1);
+                       break;
+               case 2: btn = (RadioButton)findViewById(R.id.slot_2);
+                       break;
+               }
+               if (btn != null) btn.setChecked(true);
+       }
+
+       @Override
+       protected void onPause() {
+               super.onPause();
+               Log.v(TAG, "Going inactive, try to stop");
+               if (!waitingForResult) { finish(); }
+       }
+
+       @Override
+       protected void onStop() {
+               super.onStop();
+               Log.v(TAG, "Stop requested");
+       }
+
+       public void onSlotSelectionClicked(View view) {
+               Log.v(TAG, "Radio Button selected");
+               if (! ((RadioButton) view).isChecked()) return;
+               switch(view.getId()) {
+               case R.id.slot_1: slot=1; break;
+               case R.id.slot_2: slot=2; break;
+               }
+               Editor editor = prefs.edit();
+               editor.putInt("slot_number", slot);
+               editor.commit();
+               Log.v(TAG, "stored slot number " + slot);
+       }
+
+       public void onEnrollClicked(View view) {
+               Log.v(TAG, "Enroll clicked");
+               if (slot > 0) {
+                       runEnrollment(slot);
+               } else {
+                       showEnrollResult("Must specify which slot to use");
+               }
+       }
+
+       public void onActivityResult(int requestCode, int resultCode,
+                                       Intent intent) {
+               Log.v(TAG, "Got activity result");
+               waitingForResult = false;
+
+               if (resultCode != RESULT_OK) {
+                       Log.v(TAG, "Error result code " + resultCode);
+                       return;
+               }
+               byte[] challenge = intent.getByteArrayExtra("challenge");
+               Log.v(TAG, "Challenge is \"" + hex(challenge) + "\"");
+               byte[] response = intent.getByteArrayExtra("response");
+               Log.v(TAG, "Response is  \"" + hex(response) + "\"");
+               Editor editor = prefs.edit();
+               editor.putString("challenge", hex(challenge));
+               editor.putString("response", hex(response));
+               editor.commit();
+               Log.v(TAG, "stored new challenge and response");
+       }
+
+       private void showEnrollResult(final String msg) {
+               Log.v(TAG, "Show result: \"" + msg + "\"");
+
+               AlertDialog.Builder builder = new AlertDialog.Builder(this);
+               builder.setTitle(R.string.enrollresult);
+               builder.setMessage(msg);
+               builder.setPositiveButton(android.R.string.ok,
+                               new DialogInterface.OnClickListener() {
+                       public void onClick(DialogInterface dialog, int which) {
+                               dialog.dismiss();
+                               if (!waitingForResult) { finish(); }
+                       }
+               });
+               AlertDialog dialog = builder.create();
+               dialog.show();
+       }
+
+       private void runEnrollment(int slot) {
+               Random rng = new Random();
+               byte[] challenge = new byte[63];
+               rng.nextBytes(challenge);
+               Log.v(TAG, "Random challenge: " + hex(challenge));
+               Log.v(TAG, "Launching challenging activity");
+               Intent crIntent = new Intent(this, NFCAuthCRCheck.class);
+               crIntent.putExtra("slot", slot);
+               crIntent.putExtra("challenge", challenge);
+               this.startActivityForResult(crIntent, 0);
+               waitingForResult = true;
+       }
+
+       private String hex(byte[] a) {
+               StringBuilder sb = new StringBuilder();
+               if (a == null) return "<null>";
+               for (byte b: a) sb.append(String.format("%02x", b&0xff));
+               return sb.toString();
+       }
+}