Android Open Source - APO-Theta-Upsilon-App Login

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Back to project page APO-Theta-Upsilon-App.

License

The source code is released under:

GNU Lesser General Public License

Java Source Code

/*
 * Copyright 2011 Devin Schwab, Umang Banugaria
 *//ww  w.ja v a  2  s .co m
 * This file is part of the APO Theta Upsilon App for Case Western Reserve University's Alpha Phi Omega Theta Upsilon Chapter.
 *
 * The APO Theta Upsilon program is free software: you can redistribute it and/or modify
 * it under the terms of the Lesser GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * Lesser GNU General Public License for more details.
 *
 * You should have received a copy of the Lesser GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package edu.cwru.apo;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import edu.cwru.apo.API.Methods;

import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class Login extends Activity implements OnClickListener, AsyncRestRequestListener<Methods, JSONObject>{
  private Button login_btn;
  private Button forgot_btn;
  private EditText username;
  private EditText password;
  private static SQLiteDatabase database = null;
  
  public static final String PREF_FILE_NAME = "PrefFile";
  
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.login);
    
    Bundle extras = getIntent().getExtras();
    if(extras.get("msg") != null)
    {
      Toast message = Toast.makeText(getApplicationContext(), extras.getString("msg"), Toast.LENGTH_SHORT);
      message.show();
    }
    // map the login button to the layout
    login_btn = (Button)findViewById(R.id.login);
    login_btn.setOnClickListener(this);
    // map the forgot password button to the layout
    forgot_btn = (Button)findViewById(R.id.forgot_password);
    forgot_btn.setOnClickListener(this);
    
    username = (EditText)findViewById(R.id.username);
    password = (EditText)findViewById(R.id.password);
    
  }

  public void onClick(View v) {
    switch(v.getId())
    {
    case R.id.login:
      API api = new API(this);
      if(!api.callMethod(Methods.login, this, username.getText().toString(), password.getText().toString()))
      {
        Toast msg = Toast.makeText(this, "Error: You must enter both a username and password to login", Toast.LENGTH_SHORT);
        msg.show();
      }
      //api.callMethod(Methods.checkAES,this, (String[])null);
      break;
        
    case R.id.forgot_password:
      //start forgot password activity
      Intent forgotPasswordIntent = new Intent(Login.this, ForgotPassword.class);
      Login.this.startActivity(forgotPasswordIntent);
      break;
    default:
      //something went wrong add a throw here
    }
  }

  public void onRestRequestComplete(Methods method, JSONObject result) 
  {
    if(method == Methods.login)
    {
      if(result != null)
      {
        try {
          String requestStatus = result.getString("requestStatus");
          if(requestStatus.compareTo("valid login") == 0)
          {
            Auth.loggedIn = true;
            Auth.Hmac.setCounter(result.getInt("counter"));
            Auth.Hmac.setIncrement(result.getInt("increment"));
            PhoneOpenHelper db = new PhoneOpenHelper(this);
            if (database == null)
              database = db.getWritableDatabase();
            API api = new API(this);
            if(!api.callMethod(Methods.phone, this, (String[])null))
            {
              Toast msg = Toast.makeText(this, "Error: Calling phone", Toast.LENGTH_LONG);
              msg.show();
            }
            
          }
          else if(requestStatus.compareTo("invalid username") == 0)
          {
            Toast msg = Toast.makeText(getApplicationContext(), "Invalid username", Toast.LENGTH_LONG);
            msg.show();
          }
          else if(requestStatus.compareTo("invalid login") == 0)
          {
            Toast msg = Toast.makeText(getApplicationContext(), "Invalid username and/or password", Toast.LENGTH_LONG);
            msg.show();
          }
          else if(requestStatus.compareTo("no user") == 0)
          {
            Toast msg = Toast.makeText(getApplicationContext(), "No username was provided", Toast.LENGTH_LONG);
            msg.show();
          }
          else
          {
            Toast msg = Toast.makeText(getApplicationContext(), "Invalid requestStatus", Toast.LENGTH_LONG);
            msg.show();
          }
        } catch (JSONException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }
      else
      {
        Toast msg = Toast.makeText(getApplicationContext(), "Could not contact web server.  Please check your connection", Toast.LENGTH_LONG);
        msg.show();
      }
    }
    else if(method == Methods.phone)
    {
      if(result != null)
      {
        try {
          String requestStatus = result.getString("requestStatus");
          if(requestStatus.compareTo("success") == 0)
          {
            SharedPreferences.Editor editor = getSharedPreferences(APO.PREF_FILE_NAME, MODE_PRIVATE).edit();
            editor.putLong("updateTime", result.getLong("updateTime"));
            editor.commit();
            int numbros = result.getInt("numBros");
            
            if (numbros > 0)
            {
              JSONArray caseID = result.getJSONArray("caseID");
              JSONArray first = result.getJSONArray("first");
              JSONArray last = result.getJSONArray("last");
              JSONArray phone = result.getJSONArray("phone");
              JSONArray family = result.getJSONArray("family");
              ContentValues values;
              for(int i = 0; i < numbros; i++)
              {
                values = new ContentValues();
                values.put("_id", caseID.getString(i));
                values.put("first", first.getString(i));
                values.put("last", last.getString(i));
                values.put("phone", phone.getString(i));
                values.put("family", family.getString(i));
                database.replace("phoneDB", null, values);
              }
            }
            Intent homeIntent = new Intent(Login.this, Home.class);
            Login.this.startActivity(homeIntent);
            finish();
          }
          else if(requestStatus.compareTo("timestamp invalid") == 0)
          {
            Toast msg = Toast.makeText(this, "Invalid timestamp.  Please try again.", Toast.LENGTH_LONG);
            msg.show();
          }
          else if(requestStatus.compareTo("HMAC invalid") == 0)
          {
            Toast msg = Toast.makeText(this, "You have been logged out by the server.  Please log in again.", Toast.LENGTH_LONG);
            msg.show();
          }
          else
          {
            Toast msg = Toast.makeText(this, "Invalid requestStatus", Toast.LENGTH_LONG);
            msg.show();
          }
        } catch (JSONException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }
    }
    else
    {
      Toast msg = Toast.makeText(getApplicationContext(), "Invalid method callback", Toast.LENGTH_LONG);
      msg.show();
    }
  }
  
  /*@Override
  protected void onPause()
  {
    Auth.saveKeys(getSharedPreferences(APO.PREF_FILE_NAME, MODE_PRIVATE));
  }
  
  @Override
  protected void onResume()
  {
    Auth.loadKeys(getSharedPreferences(APO.PREF_FILE_NAME, MODE_PRIVATE));
  }*/
  
}

Java Source Code List

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