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`login.php`

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<?php

$file_in = "users.json";
$json = json_decode(file_get_contents($file_in), true);

foreach ($json["users"] as $u){
    $users[] = $u["usn"];
    $pass[] = $u["pwd"];
    $status[] = $u["status"];
}

session_start();

$_SESSION["username"]=$_POST["username"];
$_SESSION["password"]=$_POST["password"];


if(isset($_POST["remember"]) and !isset($_COOKIE["username"]) and isset($_POST["username"]) and isset($_POST["password"])){
    setcookie("username", $_POST["username"]);
    setcookie("password", $_POST["password"]);
}

if(isset($_COOKIE["username"])){
    $_SESSION["username"]=$_COOKIE["username"];
    $_SESSION["password"]=$_COOKIE["password"];
}

if(!isset($_POST["remember"]) and isset($_POST["username"]) and isset($_POST["password"])){
    $_SESSION["username"]=$_POST["username"];
    $_SESSION["password"]=$_POST["password"];
}


$uIndex = array_search($_SESSION["username"], $users);


if (in_array($_SESSION["username"], $users) and in_array($_SESSION["password"], $pass) and $pass[$uIndex]==$_SESSION["password"]){
    if ($status[$uIndex] == "admin"){
        $_SESSION["user"]="Intentionally removed by CSource";
        header("location: admin.php");
        exit();
    }
    if ($status[$uIndex] == "user"){
        $_SESSION["user"]="Intentionally removed by CSource";
        header("location: user.php");
        exit();
    }
}


else{
    setcookie('username', '', time() - 070414);
    setcookie('password', '', time() - 070414);
    header("location: index.php?mess=ERROR");
    exit();
}
?>