AuthenticationActivity.java

package com.chehanr.yako;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.parse.GetCallback;
import com.parse.LogInCallback;
import com.parse.ParseException;
import com.parse.ParseQuery;
import com.parse.ParseUser;

public class AuthenticationActivity extends AppCompatActivity {

    private EditText mUsernameEmailEtxt;

    private EditText mPasswordEtxt;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_authentication);

        // Get view references
        mPasswordEtxt = (EditText) findViewById(R.id.password);
        mUsernameEmailEtxt = (EditText) findViewById(R.id.username_email);
        Button mSigninBtn = (Button) findViewById(R.id.btn_sign_in);
        Button mSignupBtn = (Button) findViewById(R.id.btn_sign_up);
        Button mCredentialBtn = (Button) findViewById(R.id.forgotCredentials);

        // Setup button click listeners
        mSigninBtn.setOnClickListener(new SignInOnClickListener());
        mSignupBtn.setOnClickListener(new SignUpOnClickListener());
        mCredentialBtn.setOnClickListener(new RecoveryOnClickListener());
    }

    // Input validation
    private boolean isFormInputValid(String username_email, String password) {
        mUsernameEmailEtxt.setError(null);
        mPasswordEtxt.setError(null);

        // validate the username or email
        if (username_email == null || username_email.isEmpty()) {
            mUsernameEmailEtxt.setError(getString(R.string.error_username_email));
            mUsernameEmailEtxt.requestFocus();
            return false;
        }
        // validate the password
        if (password == null || password.isEmpty()) {
            mPasswordEtxt.setError(getString(R.string.error_password));
            mPasswordEtxt.requestFocus();
            return false;
        }
        return true;
    }

    private class SignUpOnClickListener implements View.OnClickListener {

        @Override
        public void onClick(View v) {
            // Get the username and password from the view
            final String username_email = mUsernameEmailEtxt.getText().toString().toLowerCase().trim();
            final String password = mPasswordEtxt.getText().toString().trim();
            if (isFormInputValid(username_email, password)) {
                if (username_email.indexOf('@') != -1) {
                    String email = mUsernameEmailEtxt.getText().toString().toLowerCase().trim();
                    Log.d("detector", "username_email detected as email:" + email);
                    Intent intent = new Intent(AuthenticationActivity.this, RegistrationActivity.class);
                    intent.putExtra("e", email);
                    intent.putExtra("pw", password);
                    startActivity(intent);
                } else {
                    Log.d("detector", "username_email detected as username:" + username_email);
                    Intent intent = new Intent(AuthenticationActivity.this, RegistrationActivity.class);
                    intent.putExtra("u", username_email);
                    intent.putExtra("pw", password);
                    startActivity(intent);
                }
            }
        }
    }

    private class SignInOnClickListener implements View.OnClickListener {

        public void onClick(View v) {
            // Get the username and password from the view
            final String username_email = mUsernameEmailEtxt.getText().toString().toLowerCase().trim();
            final String password = mPasswordEtxt.getText().toString().trim();
   /*
   final TelephonyManager tm = (TelephonyManager) getBaseContext().getSystemService(Context.TELEPHONY_SERVICE);
   final String tmDevice, tmSerial, androidId;
   tmDevice = "" + tm.getDeviceId();
   tmSerial = "" + tm.getSimSerialNumber();
   androidId = "" + android.provider.Settings.Secure.getString(getContentResolver(), android.provider.Settings.Secure.ANDROID_ID);
   final UUID deviceUuid = new UUID(androidId.hashCode(), ((long)tmDevice.hashCode() << 32) | tmSerial.hashCode());
   final String deviceId = deviceUuid.toString();
   */
            if (isFormInputValid(username_email, password)) {
                if (username_email.indexOf('@') != -1) {
                    ParseQuery<ParseUser> query = ParseUser.getQuery();
                    query.whereEqualTo("email", username_email);
                    query.getFirstInBackground(new GetCallback<ParseUser>() {
                        public void done(ParseUser object, ParseException e) {
                            if (object == null) {
                                TextView error = (TextView) findViewById(R.id.info);
                                error.setVisibility(View.VISIBLE);
                                error.setText(getString(R.string.error_sign_in));
                                Log.d("error", "The getFirst request failed. Probably because no associated account found");
                            } else {
                                String actualUsername = (String) object.get("username");
                                ParseUser.logInInBackground(actualUsername, password, new LogInCallback() {
                                    public void done(ParseUser user, ParseException e) {
                                        if (user != null) {
                                            // Hooray! The user is logged in.
                                            //user.put("device_id", deviceId);
                                            Intent intent = new Intent(getBaseContext(), MainActivity.class).addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                            startActivity(intent);
                                            finish();
                                        } else {
                                            TextView error = (TextView) findViewById(R.id.info);
                                            error.setVisibility(View.VISIBLE);
                                            error.setText(getString(R.string.error_sign_in));

                                            Log.d("error", "email or password  invalid");
                                        }
                                    }
                                });
                            }
                        }
                    });

                } else {
                    Log.d("detector", "username_email detected as username:" + username_email);
                    ParseUser.logInInBackground(username_email, password, new LogInCallback() {
                        public void done(ParseUser user, ParseException e) {
                            if (user != null) {
                                // Hooray! The user is logged in.
                                //user.put("device_id", deviceId);
                                Intent intent = new Intent(getBaseContext(), MainActivity.class).addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                startActivity(intent);
                                finish();
                            } else {
                                TextView error = (TextView) findViewById(R.id.info);
                                error.setVisibility(View.VISIBLE);
                                error.setText(getString(R.string.error_sign_in));
                                Log.d("error", "username or password invalid");
                            }

                        }
                    });
                }
            }
        }
    }

    private class RecoveryOnClickListener implements View.OnClickListener {
        @Override
        public void onClick(View v) {
            // Get the username and password from the view
            final String username_email = mUsernameEmailEtxt.getText().toString().toLowerCase().trim();
            if (username_email.indexOf('@') != -1) {
                String email = mUsernameEmailEtxt.getText().toString().toLowerCase().trim();
                Log.d("detector", "username_email detected as email:" + email);
                Intent intent = new Intent(AuthenticationActivity.this, RecoveryActivity.class);
                intent.putExtra("e", email);
                startActivity(intent);
            } else {
                Log.d("detector", "username_email detected as username:" + username_email);
                Intent intent = new Intent(AuthenticationActivity.this, RecoveryActivity.class);
                startActivity(intent);
            }

        }
    }
}