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/*
* wpadebug - wpa_supplicant and Wi-Fi debugging app for Android
* Copyright (c) 2013, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
package w1.fi.wpadebug;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import android.app.Activity;
import android.app.AlertDialog;
import android.os.Bundle;
import android.os.Parcelable;
import android.view.MenuItem;
import android.content.Intent;
import android.content.DialogInterface;
import android.widget.TextView;
import android.widget.Toast;
import android.text.method.ScrollingMovementMethod;
import android.util.Log;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter;
public class WpaNfcActivity extends Activity
{
private static final String TAG = "wpadebug";
String byteArrayHex(byte[] a) {
StringBuilder sb = new StringBuilder();
for (byte b: a)
sb.append(String.format("%02x", b));
return sb.toString();
}
private void show_alert(String title, String message)
{
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle(title);
alert.setMessage(message);
alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id)
{
finish();
}
});
alert.create().show();
}
private String wpaCmd(String cmd)
{
try {
Log.d(TAG, "Executing wpaCmd: " + cmd);
Process proc = Runtime.getRuntime().exec(new String[]{"/system/bin/mksh-su", "-c", "wpa_cli " + cmd});
BufferedReader reader = new BufferedReader(new InputStreamReader(proc.getInputStream()));
StringBuffer output = new StringBuffer();
int read;
char[] buffer = new char[1024];
while ((read = reader.read(buffer)) > 0)
output.append(buffer, 0, read);
reader.close();
proc.waitFor();
Log.d(TAG, "External process completed - exitValue " +
proc.exitValue());
return output.toString();
} catch (IOException e) {
show_alert("Could not run external program",
"Execution of an external program failed. " +
"Maybe mksh-su was not installed.");
return null;
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
public boolean report_tag_read(byte[] payload)
{
String res = wpaCmd("WPS_NFC_TAG_READ " + byteArrayHex(payload));
if (res == null)
return false;
if (!res.contains("OK")) {
Toast.makeText(this, "Failed to report WSC tag read to " +
"wpa_supplicant", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(this, "Reported WSC tag read to wpa_supplicant",
Toast.LENGTH_LONG).show();
}
finish();
return true;
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
Intent intent = getIntent();
String action = intent.getAction();
Log.d(TAG, "onCreate: action=" + action);
if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) {
Log.d(TAG, "NDEF discovered");
Parcelable[] raw = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
if (raw != null) {
Log.d(TAG, "NDEF message count: " + raw.length);
NdefMessage[] msgs = new NdefMessage[raw.length];
for (int i = 0; i < raw.length; i++) {
msgs[i] = (NdefMessage) raw[i];
NdefRecord rec = msgs[i].getRecords()[0];
Log.d(TAG, "MIME type: " + rec.toMimeType());
byte[] a = rec.getPayload();
Log.d(TAG, "NDEF record: " + byteArrayHex(a));
if (rec.getTnf() == NdefRecord.TNF_MIME_MEDIA &&
rec.toMimeType().equals("application/vnd/wfa.wsc")) {
Log.d(TAG, "WSC tag read");
}
if (!report_tag_read(a))
return;
}
}
}
finish();
}
}
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