"Everything you Want"

On November 29, 2016

Pada kesempatan ini saya mau share bagaimana cara membuat hak akses user pada CodeIgniter dengan menggunakan banyak tabel. Sebagai contoh disini saya membuat dua buah tabel yaitu Admin dan Member.

Disini saya hanya akan menjelaskan point-point pentingnya saja, sisanya silahkan download source code yang sudah di sediakan di bawah.

Tabel Admin

CREATE TABLE `admin` (
`admin_id` int(10) NOT NULL,
`admin_user` char(30) NOT NULL,
`admin_pass` varchar(255) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

ALTER TABLE `admin`
ADD PRIMARY KEY (`admin_id`),
ADD UNIQUE KEY `admin_user` (`admin_user`);

Tabel Member

CREATE TABLE `member` (
`member_id` int(10) NOT NULL,
`member_user` char(20) NOT NULL,
`member_pass` varchar(255) NOT NULL,
`member_nama` varchar(255) NOT NULL,
`member_alamat` text NOT NULL,
`member_ttl` date NOT NULL,
`member_email` varchar(255) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

ALTER TABLE `member`
ADD PRIMARY KEY (`member_id`),
ADD UNIQUE KEY `member_user` (`member_user`);

Buat file Controller Utama - C_Main

<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class C_Main extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('M_Main');
}
public function index()
{
//Check session
if($this->session->userdata('admin_user'))
{
$this->load->view('admin/V_dashboard');
}
elseif($this->session->userdata('member_user'))
{
$this->load->view('member/V_dashboard');
}
else
{
$this->load->view('V_Login');
}
}
public function login()
{
$username = $this->input->post('username');
$password = md5($this->input->post('password'));
$cek_admin = $this->M_Main->get_admin($username,$password);
$cek_member = $this->M_Main->get_member($username,$password);
if($cek_admin->num_rows() == 1)
{
foreach($cek_admin->result_array() as $row)
{
$pass_auth = $row['admin_pass'];
if($password == $pass_auth)
{
$row_data = array(
'admin_id' => $row['admin_id'],
'admin_user' => $row['admin_user']
);
$this->session->set_userdata($row_data);
redirect('admin/C_Admin');
}
else
{
//if wrong password
$this->load->view('V_Login');
}
}
}
elseif($cek_member->num_rows() == 1)
{
foreach($cek_member->result_array() as $row)
{
$pass_auth = $row['member_pass'];
if($password == $pass_auth)
{
$row_data = array(
'member_id' => $row['member_id'],
'member_user' => $row['member_user']
);
$this->session->set_userdata($row_data);
redirect('member/C_Member');
}
else
{
//if wrong password
$this->load->view('V_Login');
}
}
}
else
{
//if wrong username
$this->load->view('V_Login');
}
}
public function logout(){
$this->session->unset_userdata('admin_id');
$this->session->unset_userdata('admin_user');
$this->session->unset_userdata('member_id');
$this->session->unset_userdata('member_user');
redirect(site_url(''));
}
}

Buat file Model Utama - M_Main

<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class M_Main extends CI_Model
{
public function get_admin($username,$password)
{
$query = $this->db->query("SELECT * FROM admin WHERE admin_user='$username' AND admin_pass='$password' ");
return $query;
}
public function get_member($username,$password)
{
$query = $this->db->query("SELECT * FROM member WHERE member_user='$username' AND member_pass='$password' ");
return $query;
}
}

Untuk melakukan cek session pada setiap controller, kita membutuhkan sebuah file helper. Maka buatlah file pada folder application/helpers

sessions_helper.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');
function admin_logged_in()
{
$CI =& get_instance();
$is_logged_in = $CI->session->userdata('admin_user');
if(!isset($is_logged_in) || $is_logged_in != true)
{
redirect('C_Main');
}
}
function member_logged_in()
{
$CI =& get_instance();
$is_logged_in = $CI->session->userdata('member_user');
if(!isset($is_logged_in) || $is_logged_in != true)
{
redirect('C_Main');
}
}

Lalu buka file autoload.php pada folder application/config dan ubah bagian helper menjadi seperti ini

$autoload['helper'] = array('url','form','sessions');

Nanti di setiap Controller baik Admin maupun Member tambahkan helper session tadi untuk melakukan pengecekan user yang login

Controller Admin - C_Admin

class C_Admin extends CI_Controller
{
public function __construct()
{
parent::__construct();
admin_logged_in();
}

Controller Member - C_Member

class C_Member extends CI_Controller
{
public function __construct()
{
parent::__construct();
member_logged_in();
}

Selesai.. bagaimana mudah bukan?

Untuk source codenya silahkan buka Github saya klik disini

Selamat mencoba

On November 19, 2016

1) Buat file library cipher.php dengan isi seperti berikut

<?php
/**
* Cipher
*
* Simple mcrypt interface.
*
* Cipher is a simple class for working with mcrypt.
*
* @package Cipher
* @author Nathan Lucas <nathan@gimpstraw.com>
* @link http://www.gimpstraw.com/
* @copyright Copyright (c) 2008, Nathan Lucas
* @version 2.0.0
*
* Added $iv to both encrypt() and decrypt() allowing you to use preset IVs
* while encrypting/decrypting data.
*
* Also added getIV(), which returns the instance's current IV in base64
* allowing you to store this IV for use on other instances of Cipher.
*/
class Cipher {

/**
* Algorithm to use.
*
* @access private
* @var string
*/
private $algo;

/**
* Encryption mode.
*
* @access private
* @var string
*/
private $mode;

/**
* Randomization source.
*
* @access private
* @var integer
*/
private $source;

/**
* Initialization vector.
*
* @access private
* @var string
*/
private $iv = null;

/**
* Encryption key.
*
* @access private
* @var string
*/
private $key = null;

/**
* Cipher($algo, $mode, $source)
*
* Cipher constructor. Sets the algorithm being used, the encryption
* mode, and the IV.
*
* @param string $algo
* @param string $mode
* @param integer $source (randomization source)
* @access public
* @return void
*/
public function __construct($algo = MCRYPT_3DES, $mode = MCRYPT_MODE_CBC, $source = MCRYPT_RAND) {
$this->algo = $algo;
$this->mode = $mode;
$this->source = $source;

if (is_null($this->algo) || (strlen($this->algo) == 0)) {
$this->algo = MCRYPT_3DES;
}
if (is_null($this->mode) || (strlen($this->mode) == 0)) {
$this->mode = MCRYPT_MODE_CBC;
}
}

/**
* encrypt($data, $key, $iv)
*
* Returns encrpyted $data, base64 encoded. $key must be specified at
* least once, it can be changed at any point.
*
* @param string $data
* @param mixed $key
* @param string $iv
* @access public
* @return string
*/
public function encrypt($data, $key = null, $iv = null) {
$key = (strlen($key) == 0) ? $key = null : $key;

$this->setKey($key);
$this->setIV($iv);

$out = mcrypt_encrypt($this->algo, $this->key, $data, $this->mode, $this->iv);
return base64_encode($out);
}

/**
* decrypt($data, $key, $iv)
*
* Returns decrypted $data. $key must be specified at least once, it can
* be changed at any point.
*
* @param mixed $data
* @param mixed $key
* @param string $iv
* @access public
* @return string
*/
public function decrypt($data, $key = null, $iv = null) {
$key = (strlen($key) == 0) ? $key = null : $key;

$this->setKey($key);
$this->setIV($iv);

$data = base64_decode($data);
$out = mcrypt_decrypt($this->algo, $this->key, $data, $this->mode, $this->iv);
return trim($out);
}

/**
* getIV()
*
* Returns the IV used for encryption so you can use it again in another
* Cipher instance to decrypt data.
*
* @access public
* @return string
*/
public function getIV() {
return base64_encode($this->iv);
}

/**
* setIV($iv)
*
* Sets IV. If $iv is specified, the instance IV will be set to this. If not,
* the instance will generate an IV.
*
* @param string $iv
* @access private
* @return void
*/
private function setIV($iv) {
if (!is_null($iv)) {
$this->iv = base64_decode($iv);
}
if (is_null($this->iv)) {
$iv_size = mcrypt_get_iv_size($this->algo, $this->mode);
$this->iv = mcrypt_create_iv($iv_size, $this->source);
}
}

/**
* setKey($data, $key)
*
* Sets Cipher::key. This will be the key used for the encrypt and decrypt
* methods until another $key is specified. This will trigger an error if
* no initial key is set.
*
* @param mixed $key
* @access private
* @return void
*/
private function setKey($key) {
if (!is_null($key)) {
$key_size = mcrypt_get_key_size($this->algo, $this->mode);
$this->key = hash("sha256", $key, true);
$this->key = substr($this->key, 0, $key_size);
}
if (is_null($this->key)) {
trigger_error("You must specify a key at least once in either Cipher::encrpyt() or Cipher::decrypt().", E_USER_ERROR);
}
}
}
?>

2) Misal digunakan untuk membuat user baru maka penggunaannya seperti berikut

a. Buat file form untuk menambahkan user

<form method="post" action="create_user.php">
<input type="text" name="username" required>
<input type="password" name="password" required>
<button type="submit" name="add_user">Tambah User</button>
</form>

b. Buat file action create_user.php

<?php
include 'koneksi.php'; //ganti dengan file koneksi anda
require_once("cipher.php");
$cipher = new Cipher(MCRYPT_BLOWFISH, MCRYPT_MODE_ECB);
$key = "%^$%^&%*UBAHDISINI";
$username = $_POST['username'];
$password = $cipher->encrypt($_POST['password'], $key);
if(isset($_POST['add_user'])){
$query = mysqli_query($conn,"INSERT INTO tb_user VALUES('$username', '$password')");
if($query){
echo "Berhasil Tambah User";
}
else{
echo "Gagal Tambah User";
}
}
?>

*Pada bagian UBAHDISINI bisa diganti dengan KEY yang diinginkan, misal QWERT123 atau 94XYZ dsb.

3) Misal digunakan untuk form login maka penggunaannya seperti berikut

a. Buat file form untuk login

<form method="post" action="login_proses.php">
<input type="text" name="username" required>
<input type="password" name="password" required>
<button type="submit">Login</button>
</form>

b. Buat file login_proses.php

<?php
@session_start();
include 'koneksi.php'; //ganti dengan file koneksi anda
require_once("cipher.php");
$cipher = new Cipher(MCRYPT_BLOWFISH, MCRYPT_MODE_ECB);
$key = "%^$%^&%*UBAHDISINI";
$username = $_POST['username'];
$password = $cipher->encrypt($_POST['password'], $key);
if($username&&$password) {
$get_user = mysqli_query($conn,"SELECT * FROM tb_user WHERE username='$username'");
$cek_user = mysqli_num_rows($get_user);
if($cek_user!=0){
while($row = mysqli_fetch_assoc($get_user)){
$dbusername = $row['username '];
$dbpassword = $row['password'];
}
if($username==$dbusername&&$password==$dbpassword){
$_SESSION['username']=$username;
header("location:/dashboard.php");
}
else{
header("location:/login.php");
}
}
?>

4) Selanjutnya kode tersebut tinggal di terapkan pada sistem yang kamu buat

Selamat mencoba!

On November 19, 2016

Disini dimisalkan sebuah sistem yang memiliki 3 level user berbeda.

Contoh:
- Admin
- Dosen
- Mahasiswa

1) Pertama buat halaman loginnya

<h1> FORM LOGIN </h1>
<form action="proses_login.php" method="post">
<input type="text" name="username" required>
<input type="password" name="password" required>
<button type="submit">LOGIN</button>
</form>

2) Lalu buat file actionnya (proses_login.php)

<?php
@session_start();
include 'koneksi.php'; //ganti dengan koneksi database anda
$username = $_POST['username'];
$password = $_POST['password'];
if($username&&$password){
//cek data admin
$get_admin = mysqli_query($conn,"SELECT * FROM tb_admin WHERE user_admin='$username'");
$cek_admin = mysqli_num_rows($get_admin);
if($cek_admin!=0){
while($row = mysqli_fetch_assoc($get_admin)){
$dbusername = $row['user_admin'];
$dbpassword = $row['pass_admin'];
}
if($username==$dbusername&&$password==$dbpassword){
$_SESSION['user_admin']=$username;
header("location:./admin/dashboard");
}
else{
header("location:/index.php");
}
}
//jika data admin tidak ada, cek data dosen
else{
$get_dosen = mysqli_query($conn,"SELECT * FROM tb_dosen WHERE user_dosen='$username'");
$cek_dosen = mysqli_num_rows($get_dosen);
if($cek_dosen!=0){
while($row = mysqli_fetch_assoc($get_dosen)){
$dbusername = $row['user_dosen'];
$dbpassword = $row['pass_dosen'];
}
if($username==$dbusername&&$password==$dbpassword){
$_SESSION['user_dosen']=$username;
header("location:./dosen/dashboard");
}
else{
header("location:/index.php");
}
}
//jika data dosen tidak ada, cek data mahasiswa
else{
$get_mhs = mysqli_query($conn,"SELECT * FROM tb_mhs WHERE user_mhs='$username'");
$cek_mhs = mysqli_num_rows($get_mhs);
if($cek_mhs!=0){
while($row = mysqli_fetch_assoc($get_mhs)){
$dbusername = $row['user_mhs'];
$dbpassword = $row['pass_mhs'];
}
if($username==$dbusername&&$password==$dbpassword){
$_SESSION['user_mhs']=$username;
header("location:./mahasiswa/dashboard");
}
else{
header("location:/index.php");
}
}
}
}
}
else{
header("location:/index.php");
}
?>

3) File proses_login.php tersebut melakukan cek satu-persatu menggunakan IF-ELSE sederhana
kamu bisa menambahkan lagi sesuai jumlah kebutuhan hak akses dengan cara yang sama

4) Selanjutnya kode tersebut tinggal di terapkan pada sistem yang kamu buat

Selamat mencoba!

On January 04, 2016

DISCLAIMER:

* Tutorial ini telah diuji menggunakan device Zenfone Selfie ZD551KL (Z00UD) dengan firmware versi
WW_1.14.40.695 & WW_1.15.40.1023*

* Saya tidak bertanggung jawab apabila ada hal-hal yang tidak diinginkan terjadi dengan smartphone anda! *

* Saya hanya menshare ulang apa yg sudah berhasil dilakukan dan 100% dengan cara yang serupa dengan tutorial ini *

Terima kasih :)

Berikut langkah-langkahnya:

1. Pastikan semua driver sudah terinstall di PC kamu
untuk mengecek silahkan download yang di langkah ke-2,
extract semua file kedalam satu folder,
lalu buka CMD pada direktori tsb (tekan tombol Shift lalu klik kanan, pilih Open command window here)

dan ketikkan perintah
adb devices (lalu enter)

jika muncul
List of devices attached
FAAZCY34X494 device

Maka sudah berhasil, tinggal lanjut ke langkah selanjutnya
(*Kode FAAZCY34X494 akan berbeda-beda)

Jika masih belum bisa juga silahkan gunakan “PdaNet+” (Googling sendiri ya mas bro)

2. Next, Download flasthtool HERE

3. Download pre-rooted firmware HERE
*Cari folder yang sesuai dengan firmware yg diinginkan
**Download beberapa file dari folder common dan full yang ditandai merah
aboot.mbn | boot.img | modem.bin | recovery.img | system.img.7z.001 - system.img.7z.006

untu file system.img.7z.001 - system.img.7z.006 silahkan di extract/join menggunakan aplikasi WinRar atau 7z

*perbedaan FULL dengan SLIM
FULL : Aplikasi persis seperti firmware official
SLIM : Lebih sedikit aplikasi Google nya, dan sudah terinstall Xposed jadi tinggal pakek
masalah performa = SAMA SAJA

4. Extract flashtool dan patched firmware kedalam satu folder, sehingga seperti berikut

5. Tekan Shift pada keyboard lalu klik kanan pilih Open command window here

6. Sambungkan HH ke PC, pastikan mode USB debugging sudah ON
*Settings -> Developer options -> USB debugging -> check

7. Kembali ke CMD ketikkan
adb devices (enter) -> mengecek kembali apakah HH sudah connect dengan PC
adb reboot bootloader (enter)

8. Lihat bagian atas layar HH, apakah ada tulisan fasboot mode atau tidak? Jika ada maka kembali ke CMD

9. Ketikkan
fastboot erase cache (enter, tunggu hingga ada tulisan finished)
fastboot flash boot boot.img (enter, tunggu hingga ada tulisan finished)
fastboot flash recovery recovery.img (enter, tunggu hingga ada tulisan finished)
fastboot flash modem modem.bin (enter, tunggu hingga ada tulisan finished)

fastboot flash aboot aboot.mbn (enter, tunggu hingga ada tulisan finished)

fastboot flash system system.img (enter, tunggu cukup lama hingga ada tulisan finished)

10. DONE! Jika sudah langkah terakhir ketikkan
fastboot reboot (enter)

11. Maka HH akan me-restart dengan sendirinya.
Silahkan cabut HH dr PC, tunggu restart nya akan meload satu aplikasi yakni SuperSU

12. Silahkan download Root Checker di Playstore untuk mengecek keberhasilan proses ROOT nya

SELAMAT MENCOBA :)

REMEMBER, ALWAYS DWYOR (Do With Your Own Risk) !!

Special thanks to:

DO NOT COPY-PASTE TO YOUR SITE WITHOUT OUR PERMISSION!
JUST GET OFF FOR PLAGIATOR!

Zenfone 3	Zenfone 3 Deluxe	Zenfone 3 Ultra
· Front and Rear 2.5D Corning Gorilla Glass · 16MP Camera/0.03s TriTech AF · 4 Axis OIS & 3 Axis EIS · Up to 4GB of RAM	· Invisible Antenna Design · Snapdragon 820 Series · 6GB RAM · Super AMOLED · 23MP Camera with 0.03s TriTech AF · 4 Axis OIS & 3 Axis EIS	· Invisible Antenna Design · 6.8” Display with Tru2Life+ · 23MP Camera with 0.03s TriTech AF · Dual Stereo speakers · Hi-Res Audio + DTS Headphone:X
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"Everything you Want"

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Tabel Admin

Tabel Member

Buat file Controller Utama - C_Main

Buat file Model Utama - M_Main

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Controller Admin - C_Admin

Controller Member - C_Member

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