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package com.ngser.opa.qrcode;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Created by Opa on 30/09/2016.
*/
public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
private EditText user, pass;
private TextView loginErrorMsg;
private Button bLogin;
// Progress Dialog
private ProgressDialog pDialog;
// JSON parser class
JSONParser jsonParser = new JSONParser();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
user = (EditText)findViewById(R.id.edi_numero);
pass = (EditText)findViewById(R.id.edit_code);
loginErrorMsg = (TextView) findViewById(R.id.ErrorMsg);
bLogin = (Button)findViewById(R.id.buton_login);
bLogin.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.buton_login:
new AttemptLogin().execute();
// here we have used, switch case, because on login activity you may
// also want to show registration button, so if the user is new ! we can go the
// registration activity , other than this we could also do this without switch
// case.
default: break;
}
}
public class AttemptLogin extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(LoginActivity.this);
pDialog.setTitle("PayMoney Connexion");
pDialog.setMessage("Authentification...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected String doInBackground(String... args) {
// TODO Auto-generated method stub
// here Check for success tag
int success;
String username = user.getText().toString();
String password = pass.getText().toString();
String convertMd5 = "";
try {
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(password.getBytes(), 0, pass.length());
convertMd5 = new BigInteger(1, md.digest()).toString(16);
} catch (NoSuchAlgorithmException ex) {
Logger.getLogger(LoginActivity.class.getName()).log(Level.SEVERE, null, ex);
}
String lien = "http://localhost:8585/Json/webresources/compte/numero/"+username+"/"+convertMd5;
List<NameValuePair> params = new ArrayList <NameValuePair>();
params.add(new BasicNameValuePair("lien", lien));
Log.d("request!", "starting");
JSONObject json = jsonParser.makeHttpRequest(lien, "GET", params);
// checking log for json response
Log.d("Login attempt", json.toString());
// success tag for json
//success = json.getInt(TAG_SUCCESS);
if (json.toString().isEmpty()) {
Log.d("Successfully Login!", json.toString());
Intent ii = new Intent(LoginActivity.this, MainActivity.class);
finish();
// this finish() method is used to tell android os that we are done with current
// activity now! Moving to other activity
startActivity(ii);
Toast.makeText(LoginActivity.this, "Vous etes connecté", Toast.LENGTH_SHORT).show();
}else{
pDialog.dismiss();
loginErrorMsg.setText("Incorrect username/password");
}
return null;
}
/**
* Once the background process is done we need to Dismiss the progress dialog asap
* **/
protected void onPostExecute(String message) {
pDialog.dismiss();
}
}
} |
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