Write E-Card and & Fullsize download links protection

/*
-------------------------------------------------------------------
SAMPLE if you only want to request login and password on login form.
Each row represents different user.

$LOGIN_INFORMATION = array(
  'zubrag' => 'root',
  'hvhh' => '00251864'
);

--------------------------------------------------------------------
SAMPLE if you only want to request only password on login form.
Note: only passwords are listed

$LOGIN_INFORMATION = array(
  'root',
  'testpass',
  'passwd'
);

--------------------------------------------------------------------
*/

##################################################################
#  SETTINGS START
##################################################################

// Add login/password pairs below, like described above
// NOTE: all rows except last must have comma "," at the end of line
$LOGIN_INFORMATION = array(
  'passport' => 'ab0659305',
  'hvhh' => '00251864'
);

// request login? true - show login and password boxes, false - password box only
define('USE_USERNAME', true);

// User will be redirected to this page after logout
define('LOGOUT_URL', 'http://www.minenergy.am/');

// time out after NN minutes of inactivity. Set to 0 to not timeout
define('TIMEOUT_MINUTES', 1);

// This parameter is only useful when TIMEOUT_MINUTES is not zero
// true - timeout time from last activity, false - timeout time from login
define('TIMEOUT_CHECK_ACTIVITY', true);

##################################################################
#  SETTINGS END
##################################################################

///////////////////////////////////////////////////////
// do not change code below
///////////////////////////////////////////////////////

// show usage example
if(isset($_GET['help'])) {
  die('Include following code into every page you would like to protect, at the very beginning (first line):<br>&lt;?php include("' . str_replace('\\','\\\\',__FILE__) . '"); ?&gt;');
}

// timeout in seconds
$timeout = (TIMEOUT_MINUTES == 0 ? 0 : time() + TIMEOUT_MINUTES * 60);

// logout?
if(isset($_GET['logout'])) {
  setcookie("verify", '', $timeout, '/'); // clear password;
  header('Location: ' . LOGOUT_URL);
  exit();
}

if(!function_exists('showLoginPasswordProtect')) {

// user provided password
if (isset($_POST['access_password'])) {

  $login = isset($_POST['access_login']) ? $_POST['access_login'] : '';
  $pass = $_POST['access_password'];
  if (!USE_USERNAME && !in_array($pass, $LOGIN_INFORMATION)
  || (USE_USERNAME && ( !array_key_exists($login, $LOGIN_INFORMATION) || $LOGIN_INFORMATION[$login] != $pass ) )
  ) {
    showLoginPasswordProtect("Incorrect password.");
  }
  else {
    // set cookie if password was validated
    setcookie("verify", md5($login.'%'.$pass), $timeout, '/');
   
    // Some programs (like Form1 Bilder) check $_POST array to see if parameters passed
    // So need to clear password protector variables
    unset($_POST['access_login']);
    unset($_POST['access_password']);
    unset($_POST['Submit']);
  }

}

else {

  // check if password cookie is set
  if (!isset($_COOKIE['verify'])) {
    showLoginPasswordProtect("");
  }

  // check if cookie is good
  $found = false;
  foreach($LOGIN_INFORMATION as $key=>$val) {
    $lp = (USE_USERNAME ? $key : '') .'%'.$val;
    if ($_COOKIE['verify'] == md5($lp)) {
      $found = true;
      // prolong timeout
      if (TIMEOUT_CHECK_ACTIVITY) {
        setcookie("verify", md5($lp), $timeout, '/');
      }
      break;
    }
  }
  if (!$found) {
    showLoginPasswordProtect("");
  }