Android Open Source - SmartPass Retrive Password Task

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License

The source code is released under:

Copyright (c) 2013 Dax Earl, Aaron Golliver Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal ...

Java Source Code

package com.passwordLib;
/*ww  w.  j a v  a  2 s . c o  m*/
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.widget.Toast;

import com.example.smartpass.LoginScreen;
import com.example.smartpass.PasswordList;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;

public class RetrivePasswordTask extends AsyncTask<Object, Void, Boolean> {

  Context context;
  String username;
  String password;

  @Override
  protected Boolean doInBackground(Object... params) {
    System.out.println("get args " + params[0]);
    context = (Context) (params[0]);
    System.out.println("get args " + params[1]);
    username = (String) (params[1]);
    System.out.println("get args " + params[2]);
    password = (String) (params[2]);
    JSch jsch = new JSch();
    Session session = null;

    final String SERVER = "app.smartfile.com";
    final String USERNAME = PasswordFile.username;
    final String PASSWORD = PasswordFile.password;

    try {
      session = jsch.getSession(USERNAME, SERVER, 22);

      session.setConfig("StrictHostKeyChecking", "no");

      session.setPassword(PASSWORD);

      session.connect();

      Channel channel = session.openChannel("sftp");

      channel.connect();

      ChannelSftp sftpChannel = (ChannelSftp) channel;

      String fileName = PasswordFile.fileName;

      sftpChannel.get(fileName, context.getFilesDir() + "/" + fileName);

      sftpChannel.exit();

      BufferedReader br = null;

      try {

        String sCurrentLine;

        br = new BufferedReader(new FileReader(context.getFilesDir()
            + "/" + fileName));

        while ((sCurrentLine = br.readLine()) != null) {
          System.out.println(sCurrentLine);
        }

      } catch (IOException e) {
        e.printStackTrace();
      } finally {
        try {
          if (br != null)
            br.close();
        } catch (IOException ex) {
          ex.printStackTrace();
        }
      }

    } catch (JSchException e) {
      e.printStackTrace();
      return false;
    } catch (SftpException e) {
      e.printStackTrace();
      return false;
    } catch (Exception e) {
      System.out.println("retrieve error");
      e.printStackTrace();
      return false;
    }
    return true;
  }

  @Override
  protected void onPostExecute(Boolean result) {
    if (result) {

      PasswordFile.initPasswordFile(username, password, context);
      Intent intent = new Intent(context, PasswordList.class);
      context.startActivity(intent);

    } else {
      System.out.println("error logging in: " + username + "|" + password);

      Intent intent = new Intent(context, LoginScreen.class);
      context.startActivity(intent);

      CharSequence errorMessage = "Could not connect to SmartFile. Either your username/password was invalid, or the server is offline.";
      int duration = Toast.LENGTH_LONG;

      Toast toast = Toast.makeText(context, errorMessage, duration);
      toast.show();
    }
  }

}

Java Source Code List

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