PHP_SMART_HOME_V3/app/class/UserManager.php

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<?php
class UserManager
{
public function getUsers () {
try {
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$allUsers = Db::loadAll ("SELECT user_id, username, at_home FROM users");
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return $allUsers;
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} catch(PDOException $error) {
echo $error->getMessage();
die();
}
}
public function getUser ($userName) {
try {
$user = Db::loadOne ("SELECT * FROM users WHERE username = ?", [$userName]);
return $user;
} catch(PDOException $error) {
echo $error->getMessage();
die();
}
}
public function login ($username, $password, $rememberMe) {
try {
if ($user = Db::loadOne ('SELECT * FROM users WHERE LOWER(username)=LOWER(?)', array ($username))) {
if ($user['password'] == UserManager::getHashPassword($password)) {
if (isset($rememberMe) && $rememberMe == 'true') {
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setcookie ("rememberMe", $this->setEncryptedCookie($user['username']), time () + (30 * 24 * 60 * 60 * 1000), BASEDIR, $_SERVER['HTTP_HOST'], 1);
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}
$_SESSION['user']['id'] = $user['user_id'];
$page = "./index.php";
if ($user["startPage"] == 1) {
$page = "./dashboard.php";
}
unset($_POST['login']);
return $page;
} else {
throw new PDOException("Heslo není správné!");
}
} else {
throw new PDOException("Uživatel s tím to jménem neexistuje!");
}
} catch(PDOException $error) {
echo $error->getMessage();
die();
}
}
public function isLogin () {
if (isset ($_SESSION['user']) && isset($_SESSION['user']['id'])) {
return true;
} else {
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if (isset ($_COOKIE['rememberMe'])){
if ($user = Db::loadOne ('SELECT * FROM users WHERE LOWER(username)=LOWER(?)', array ($this->getDecryptedCookie($_COOKIE['rememberMe'])))) {
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$_SESSION['user']['id'] = $user['user_id'];
return true;
}
}
}
return false;
}
public function logout () {
unset($_SESSION['user']);
session_destroy();
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if (isset($_COOKIE['rememberMe'])){
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unset($_COOKIE['rememberMe']);
setcookie("rememberMe", 'false', time(), BASEDIR, $_SERVER['HTTP_HOST']);
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}
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}
public function setEncryptedCookie($value){
$first_key = base64_decode(FIRSTKEY);
$second_key = base64_decode(SECONDKEY);
$method = "aes-256-cbc";
$ivlen = openssl_cipher_iv_length($method);
$iv = openssl_random_pseudo_bytes($ivlen);
$newvalue_raw = openssl_encrypt($value, $method, $first_key, OPENSSL_RAW_DATA, $iv);
$hmac = hash_hmac('sha256', $newvalue_raw, $second_key, TRUE);
$newvalue = base64_encode ($iv.$hmac.$newvalue_raw);
return $newvalue;
}
public function getDecryptedCookie($value){
$first_key = base64_decode(FIRSTKEY);
$second_key = base64_decode(SECONDKEY);
$c = base64_decode($value);
$method = "aes-256-cbc";
$ivlen = openssl_cipher_iv_length($method);
$iv = substr($c, 0, $ivlen);
$hmac = substr($c, $ivlen, 32);
$newValue_raw = substr($c, $ivlen+32);
$newValue = openssl_decrypt($newValue_raw, $method, $first_key, OPENSSL_RAW_DATA, $iv);
$calcmac = hash_hmac('sha256', $newValue_raw, $second_key, TRUE);
if (hash_equals ($hmac, $calcmac)) {
return $newValue;
}
return false;
}
public static function getUserData ($type) {
if (isset($_SESSION['user']['id'])) {
$user = Db::loadOne ('SELECT ' . $type . ' FROM users WHERE user_id=?', array ($_SESSION['user']['id']));
return $user[$type];
}
return "";
}
public function setUserData ($type, $value) {
if (isset ($_SESSION['user']['id'])) {
Db::command ('UPDATE users SET ' . $type . '=? WHERE user_id=?', array ($value, $_SESSION['user']['id']));
}
}
public function getHashPassword ($password) {
$salt = "s0mRIdlKvI";
$hashPassword = hash('sha512', ($password . $salt));
return $hashPassword;
}
public function ulozitObrazek ($file, $path = "", $name = "") {
if (!@is_array (getimagesize($file['tmp_name']))) {
throw new ChybaUzivatele("Formát obrázku ". $file['name'] ." není podporován!");
} else {
$extension = strtolower(strrchr($file['name'], '.'));
switch ($extension) {
case '.jpg':
case '.jpeg':
$img = @imagecreatefromjpeg($file['tmp_name']);
break;
case '.gif':
$img = @imagecreatefromgif($file['tmp_name']);
break;
case '.png':
$img2 = @imagecreatefrompng($file['tmp_name']);
break;
case '.ico':
$img3 = @$file['tmp_name'];
break;
default:
$img = false;
break;
}
if($name == ""){
$nazev = substr($file['name'], 0, strpos($file['name'], ".")) ."_". round(microtime(true) * 1000);
}else{
$nazev = $name;
}
if(!file_exists($path)){
mkdir($path, 0777, true);
}
if (@$img) {
if (!imagejpeg ($img, $path . $nazev .".jpg", 95)) {
throw new ChybaUzivatele ("Obrázek neuložen!");
}
imagedestroy ($img);
} else if (@$img2) {
if (!imagepng ($img2, $path . $nazev .".jpg")) {
throw new ChybaUzivatele ("Obrázek neuložen!");
}
imagedestroy ($img2);
} else if (@$img3) {
if (!copy($img3, $path . $nazev .'.ico')) {
throw new ChybaUzivatele ("Obrázek neuložen!");
}
}
return array('success' => true, 'url' => $path . $nazev .".jpg");
}
}
public function atHome($userId, $atHome){
try {
Db::edit ('users', ['at_home' => $atHome], 'WHERE user_id = ?', array($userId));
} catch(PDOException $error) {
echo $error->getMessage();
die();
}
}
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public function changePassword($oldPassword, $newPassword, $newPassword2){
if ($newPassword == $newPassword2) {
//Password Criteria
$oldPasswordSaved = self::getUserData('password');
if (self::getHashPassword($oldPassword) == $oldPasswordSaved) {
self::setUserData('password', self::getHashPassword($newPassword));
} else {
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throw new Exception ("old password did not match");
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}
} else {
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throw new Exception ("new password arent same");
}
}
public function createUser($userName, $password){
$userId = Db::loadOne('SELECT * FROM users WHERE username = ?;', array($userName))['user_id'];
if ($userId != null) {
return false;
};
try {
$user = [
'username' => $userName,
'password' => self::getHashPassword($password),
];
return Db::add ('users', $user);
} catch(PDOException $error) {
echo $error->getMessage();
die();
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}
}
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}
?>