Android Open Source - AccountPasswordsAndroid Read Key Files

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Back to project page AccountPasswordsAndroid.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.ving.accountpasswords;
//from w  w  w  . j a  v a  2s. com
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.OptionalDataException;
import java.security.PrivateKey;
import java.security.PublicKey;

import com.ving.accountpasswords.MyApplication;

import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.os.Environment;
import android.util.Log;

public class ReadKeyFiles extends AsyncTask<MyApplication, Integer, MyApplication> {
  private Context mContext;
  private ProgressDialog pd = null;
  private String errorMsg = null;
  private File dir = null;
  private File PRIVATE_KEY_FILE;
  private File PUBLIC_KEY_FILE;
  
  ReadKeyFiles(Context context) {
    mContext = context;
    dir = new File(Environment.getExternalStorageDirectory().toString(),"/RSAKeys");
    PRIVATE_KEY_FILE = new File(dir,"RSA.private.key");
    PUBLIC_KEY_FILE = new File(dir,"RSA.public.key");
  }
  
  protected void onPreExecute() {
      pd = ProgressDialog.show(mContext, "Reading", "Reading Key Files");
  }
  
  protected MyApplication doInBackground(MyApplication... myApps) {
    PublicKey publicKey = null;
    PrivateKey privateKey = null;
    ObjectInputStream inputStream = null;
    try {
      inputStream = new ObjectInputStream(new FileInputStream(PUBLIC_KEY_FILE));
    } catch (IOException e1) {
      e1.printStackTrace();
      errorMsg = e1.toString();
      cancel(true);
    }
    if (! isCancelled()) {
      try {
        publicKey = (PublicKey) inputStream.readObject();
      } catch (ClassNotFoundException e1) {
        e1.printStackTrace();
        errorMsg = e1.toString();
        cancel(true);
      } catch (OptionalDataException e1) {
        e1.printStackTrace();
        errorMsg = e1.toString();
        cancel(true);
      } catch (IOException e1) {
        e1.printStackTrace();
        errorMsg = e1.toString();
        cancel(true);
      }
    }
    if (! isCancelled()) {
      try {
        inputStream.close();
        inputStream = new ObjectInputStream(new FileInputStream(PRIVATE_KEY_FILE));
      } catch (IOException e1) {
        e1.printStackTrace();
        errorMsg = e1.toString();
        cancel(true);
      }
    }
    if (! isCancelled()) {
      try {
        privateKey = (PrivateKey) inputStream.readObject();
      } catch (ClassNotFoundException e1) {
        e1.printStackTrace();
        errorMsg = e1.toString();
        cancel(true);
      } catch (OptionalDataException e1) {
        e1.printStackTrace();
        errorMsg = e1.toString();
        cancel(true);
      } catch (IOException e1) {
        e1.printStackTrace();
        errorMsg = e1.toString();
        cancel(true);
      }
    }
    if (! isCancelled()) {
      try {
      inputStream.close();
      } catch (IOException e1) {
        e1.printStackTrace();
        errorMsg = e1.toString();
        cancel(true);
      }
    }
    if (! isCancelled()) {
      myApps[0].setKeys(publicKey, privateKey);
    }
    return myApps[0];
  }
  
  protected void onProgressUpdate(Integer... progress) {

    }
  
  protected void onCancelled(MyApplication myApp) {
    pd.cancel();
    AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
      builder.setTitle("No Data Retrieved");
      builder.setMessage("Sorry, there was an error trying to read the RSA Keys.\n" + errorMsg);
      builder.setPositiveButton("ok", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int arg1) {
                dialog.dismiss();
            }});
      builder.setCancelable(false);
      AlertDialog myAlertDialog = builder.create();
      myAlertDialog.show();
  }
  
  protected void onPostExecute(MyApplication myApp) {
    pd.cancel();
    if (! isCancelled()) {
      ReadPasswordData readPWDTask = new ReadPasswordData(mContext);
      readPWDTask.execute(myApp);
    }
  }

}

Java Source Code List

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