740 lines
23 KiB
PHP
740 lines
23 KiB
PHP
<?php
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/**
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* Class that encapsulates everything that can be done with a user
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*/
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class User
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{
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private $id;
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private $name;
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private $surname;
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private $username;
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private $email;
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private $rank;
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private $active;
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/**
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* Gets user data from database and creates the class
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* @param int $id user ID
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*/
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function __construct($id)
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{
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global $mysqli;
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$stmt = $mysqli->prepare("SELECT * FROM users WHERE id=?");
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$stmt->bind_param("d", $id);
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$stmt->execute();
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$query = $stmt->get_result();
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if (!$query->num_rows)
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{
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throw new Exception("User doesn't exist.");
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return;
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}
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$result = $query->fetch_array();
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$this->id = $id;
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$this->active = $result['active'];
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$this->name = $result['name'];
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$this->email = $result['email'];
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$this->surname = $result['surname'];
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$this->username = $result['username'];
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$this->rank = $result['permission'];
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}
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/**
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* Returns username of this user
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* @return String username
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*/
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public function get_username()
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{
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return $this->username;
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}
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/**
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* Returns whether this user is active
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* @return Boolean user active status
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*/
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public function is_active()
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{
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return $this->active;
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}
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/**
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* Returns rank of this user
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* @return int rank
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*/
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public function get_rank()
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{
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return $this->rank;
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}
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/**
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* Returns full name of this user
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* @return String name in "Name Surname" format
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*/
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public function get_name()
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{
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return $this->name . " " . $this->surname;
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}
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/**
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* Toggles active status of this user. First checks if the user
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* making the change has permission to do that.
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* @return void
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*/
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public function toggle()
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{
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global $mysqli, $message, $user;
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$id = $_GET['id'];
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if ($this->id!=$_SESSION['user'] && $user->get_rank()<=1 && ($user->get_rank()<$this->rank))
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{
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$stmt = $mysqli->prepare("UPDATE users SET active = !active WHERE id=?");
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$stmt->bind_param("i", $this->id);
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$stmt->execute();
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$stmt->close();
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header("Location: ".WEB_URL."/admin/?do=user&id=".$id);
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}else{
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$message = _("You don't have the permission to do that!");
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}
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}
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/**
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* Processes submitted form and adds user unless problem is encountered,
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* calling this is possible only for Superadmin (other ranks cannot add users)
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* or when the installation script is being run. Also checks requirements
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* for username and email being unique and char limits.
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* @return void
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*/
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public static function add()
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{
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global $user, $message, $mysqli;
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if (INSTALL_OVERRIDE || $user->get_rank()==0)
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{
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if (strlen(trim($_POST['name']))==0) {
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$messages[] = _("Name");
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}
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if(strlen(trim($_POST['surname']))==0) {
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$messages[] = _("Surname");
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}
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if(strlen(trim($_POST['email']))==0) {
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$messages[] = _("Email");
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}
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if(strlen(trim($_POST['password']))==0) {
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$messages[] = _("Password");
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}
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if(!isset($_POST['permission']))
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{
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$messages[] = _("Rank");
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}
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if (isset($messages)){
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$message = "Please enter ".implode(", ", $messages);
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return;
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}
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$name = $_POST['name'];
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$surname = $_POST['surname'];
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$username = $_POST['username'];
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$email = $_POST['email'];
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$pass = $_POST['password'];
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if (!filter_var($email, FILTER_VALIDATE_EMAIL))
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{
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$message = "Invalid email!";
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return;
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}
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$variables = array();
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if (strlen($name)>50){
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$variables[] = 'name: 50';
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}
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if (strlen($surname)>50){
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$variables[] = 'surname: 50';
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}
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if (strlen($username)>50){
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$variables[] = 'username: 50';
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}
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if (strlen($email)>60){
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$variables[] = 'email: 60';
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}
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if (!empty($variables))
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{
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$message = _("Please mind the following character limits: ");
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$message .= implode(", ", $variables);
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return;
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}
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$salt = uniqid(mt_rand(), true);
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$hash = hash('sha256', $pass.$salt);
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$permission = $_POST['permission'];
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$stmt = $mysqli->prepare("INSERT INTO users values (NULL, ?, ?, ?, ?, ?, ?, ?, 1)");
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$stmt->bind_param("ssssssi", $email, $username, $name, $surname, $hash, $salt, $permission);
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$stmt->execute();
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if ($stmt->affected_rows==0)
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{
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$message = _("Username or email already used");
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return;
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}
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$to = $email;
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$subject = _('User account created').' - '.NAME;
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$msg = sprintf(_("Hi %s!<br>"."Your account has been created. You can login with your email address at <a href=\"%s\">%s</a> with password %s - please change it as soon as possible."), $name." ".$surname,WEB_URL."/admin", WEB_URL."/admin", $pass);
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$headers = "Content-Type: text/html; charset=utf-8 ".PHP_EOL;
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$headers .= "MIME-Version: 1.0 ".PHP_EOL;
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$headers .= "From: ".MAILER_NAME.' <'.MAILER_ADDRESS.'>'.PHP_EOL;
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$headers .= "Reply-To: ".MAILER_NAME.' <'.MAILER_ADDRESS.'>'.PHP_EOL;
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mail($to, $subject, $msg, $headers);
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if (!INSTALL_OVERRIDE)
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{
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header("Location: ".WEB_URL."/admin/?do=settings");
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}
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}
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else {
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$message = _("You don't have the permission to do that!");
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}
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}
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/**
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* Processes submitted form and logs user in, unless the user is deactivated or wrong
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* password or email has been submitted. The script doesn't let anyone know which
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* field was wrong as it is not possible to verify email address from outside admin panel,
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* so this actually helps with security :)
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* @return void
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*/
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public static function login()
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{
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global $message, $mysqli;
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if (!isset($_POST['email']) && !isset($_POST['email']))
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{
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return;
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}
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if ((!isset($_POST['email']) || !isset($_POST['email'])))
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{
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$message = _("Please fill in your email and password!");
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return;
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}
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$email = $_POST['email'];
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$pass = $_POST['pass'];
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$stmt = $mysqli->prepare("SELECT id,password_salt as salt,active FROM users WHERE email=?");
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$stmt->bind_param("s", $email);
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$stmt->execute();
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$query = $stmt->get_result();
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if ($query->num_rows<1)
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{
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$message = _("Wrong email or password");
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return;
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}
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$result = $query->fetch_assoc();
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$salt = $result["salt"];
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$id = $result["id"];
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$active = $result["active"];
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if (!$active)
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{
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$message = _("Your account has been disabled. Please contact administrator.");
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return;
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}
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$hash = hash('sha256', $pass.$salt);
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$stmt = $mysqli->prepare("SELECT count(*) as count FROM users WHERE id=? AND password_hash=?");
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$stmt->bind_param("is", $id, $hash);
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$stmt->execute();
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$query = $stmt->get_result();
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if (!$query->fetch_assoc()['count'])
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{
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$message = _("Wrong email or password");
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return;
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}
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if (isset($_POST['remember'])&&$_POST['remember'])
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{
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$year = strtotime('+356 days', time());
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$token = Token::add($id, 'remember', $year);
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setcookie('token', $token, $year, "/");
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setcookie('user', $id, $year, "/");
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}
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$_SESSION['user'] = $id;
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header("Location: ".WEB_URL."/admin");
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}
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/**
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* Checks whether token is valid (this means is in database and associated
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* with the user) and sets session data if it is, so user remains logged in.
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* The script deletes the token either way.
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* @return void
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*/
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public static function restore_session()
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{
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global $message;
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$id = $_COOKIE['user'];
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$token = $_COOKIE['token'];
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if (Token::validate($token, $id, "remember"))
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{
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$year = strtotime('+356 days', time());
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unset($_COOKIE['token']);
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$_SESSION['user'] = $id;
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$new_token = Token::add($id, 'remember', $year);
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setcookie('token', $new_token, $year, "/");
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setcookie('user', $id, $year, "/");
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}
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else
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{
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unset($_COOKIE['user']);
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unset($_COOKIE['token']);
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setcookie('user', null, -1, '/');
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setcookie('token', null, -1, '/');
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$message = _("Invalid token detected, please login again!");
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}
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Token::delete($token);
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}
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/**
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* Renders settings for this user so it can be displayed in admin panel.
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* @return void
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*/
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public function render_user_settings()
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{
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global $permissions, $user;
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?>
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<div class="row user">
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<div class="col-md-2 col-md-offset-2"><img src="https://www.gravatar.com/avatar/<?php echo md5( strtolower( trim( $this->email ) ) );?>?s=160"
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alt="<?php echo _("Profile picture");?>"></div>
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<div class="col-md-6">
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<?php if($this->id==$_SESSION['user']||$user->get_rank()<1){
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?>
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<form action="<?php echo WEB_URL;?>/admin/?do=user&id=<?php echo $this->id; ?>" method="POST">
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<div class="input-group">
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<div class="col-md-12">
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<div class="row">
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<label class="form-name" for="name"><?php echo _("Name"); ?></label>
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<label class="form-name" for="surname"><?php echo _("Surname"); ?></label>
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</div>
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<div class="row">
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<input type="text" name="name" placeholder="<?php echo _("Name"); ?>"
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title="<?php echo _("Name"); ?>" class="form-control form-name"
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value=<?php echo htmlspecialchars($this->name, ENT_QUOTES);?>>
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<input type="text" name="surname" placeholder="<?php echo _("Surname"); ?>"
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title="<?php echo _("Surname"); ?>" class="form-control form-name"
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value=<?php echo htmlspecialchars($this->surname, ENT_QUOTES);?>>
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</div>
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</div>
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</div>
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<div class="input-group">
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<button type="submit" class="btn btn-primary pull-right"><?php echo _("Change name");?></button>
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</div>
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</form>
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<?php
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}else{
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?>
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<h3><?php echo $this->name." ".$this->surname;?></h3>
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<?php
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}?>
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</div>
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</div>
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<form action="<?php echo WEB_URL;?>/admin/?do=user&id=<?php echo $this->id; ?>" method="POST">
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<div class="row user">
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<div class="col-md-2 col-md-offset-2"><strong><?php echo _("Username");?></strong></div>
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<div class="col-md-6">
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<?php
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if ($this->id==$_SESSION['user'] || $user->get_rank()<1){?>
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<div class="input-group">
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<input type="text" class="form-control" name="username" required value="<?php echo htmlspecialchars($this->username, ENT_QUOTES);?>">
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<span class="input-group-btn">
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<button type="submit" class="btn btn-primary pull-right"><?php echo _("Change username");?></button>
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</span>
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</div>
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<?php
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}else{?><?php echo $this->username." ";
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if ($user->get_rank()>=1){
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echo "<i class='fa fa-".($this->active?"check success":"times danger")."'></i>";
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}
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}
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?>
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</div>
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</div>
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</form>
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<form action="<?php echo WEB_URL;?>/admin/?do=user&id=<?php echo $this->id; ?>" method="POST">
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<div class="row user">
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<div class="col-md-2 col-md-offset-2"><strong><?php echo _("Role");?></strong></div>
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<div class="col-md-6"><?php if ($user->get_rank() == 0 && $this->id != $_SESSION['user']){?>
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<div class="input-group"><select class="form-control" name="permission">
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<?php foreach ($permissions as $key => $value) {
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echo "<option value='$key' ".($key==$this->rank?"selected":"").">$value</option>";
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} ?>
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</select><span class="input-group-btn">
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<button type="submit" class="btn btn-primary pull-right"><?php echo _("Change role");?></button>
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</span>
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</div><?php }else{ echo $permissions[$this->rank];}?></div>
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</div>
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</form>
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<?php if($this->id==$_SESSION['user']||$user->get_rank()<1)
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{?>
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<form action="<?php echo WEB_URL;?>/admin/?do=user&id=<?php echo $this->id; ?>" method="POST">
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<div class="row user">
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<div class="col-md-2 col-md-offset-2"><strong>Email</strong></div>
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<div class="col-md-6">
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<div class="input-group">
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<input type="email" class="form-control" name="email" value="<?php echo $this->email; ?>">
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<span class="input-group-btn">
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<button type="submit" class="btn btn-primary pull-right"><?php echo _("Change email");?></button>
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</span>
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</div>
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</div>
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</div>
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</form>
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<?php }else
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{
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?>
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<div class="row user">
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<div class="col-md-2 col-md-offset-2"><strong><?php echo _("Email");?></strong></div>
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<div class="col-md-6">
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<a href="mailto:<?php echo $this->email; ?>"><?php echo $this->email; ?></a>
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</div>
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</div>
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<?php
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}
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if($this->id==$_SESSION['user']){
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?>
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<form action="<?php echo WEB_URL;?>/admin/?do=user" method="POST">
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<div class="row">
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<div class="col-md-2 col-md-offset-2"><strong><?php echo _("Password");?></strong></div>
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<div class="col-md-6">
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<label for="password"><?php echo _("Old password");?></label>
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<input id="password" placeholder="<?php echo _("Old password");?>" type="password" class="form-control" name="old_password">
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<label for="new_password"><?php echo _("New password");?></label>
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<input id="new_password" placeholder="<?php echo _("New password");?>" type="password" class="form-control" name="password">
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<label for="new_password_check"><?php echo _("Repeat password");?></label>
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<input id="new_password_check" placeholder="<?php echo _("Repeat password");?>" type="password" class="form-control" name="password_repeat">
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<button type="submit" class="btn btn-primary pull-right margin-top"><?php echo _("Change password");?></button>
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</div>
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</div>
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</form>
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<?php
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}
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if ($this->id!=$_SESSION['user'] && $user->get_rank()<=1 && ($user->get_rank()<$this->rank))
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{?>
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<div class="row">
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<div class="col-md-2 col-md-offset-2"></div>
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<div class="col-md-6">
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<?php
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if ($this->active){
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echo '<a href="'.WEB_URL.'/admin/?do=user&id='.$this->id.'&what=toggle" class="btn btn-danger">'._("Deactivate user")."</a>";
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}else{
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echo '<a href="'.WEB_URL.'/admin/?do=user&id='.$this->id.'&what=toggle" class="btn btn-success">'._("Activate user")."</a>";
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}
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?>
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</div>
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</div>
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<?php }
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}
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/**
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* Changes username of user by POST[ID].
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* @return void
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*/
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public function change_username()
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{
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global $mysqli, $message, $user;
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$id = $this->id;
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$stmt = $mysqli->prepare("SELECT count(*) FROM users WHERE username LIKE ?");
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$stmt->bind_param("s",$_POST["username"]);
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$stmt->execute();
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if ($stmt->num_rows > 0)
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{
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$message = _("This username is already taken.");
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return;
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}
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$stmt->close();
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if ($_SESSION['user'] != $id && $user->get_rank()>0)
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{
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$message = _("Cannot change username of other users!");
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}else{
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$stmt = $mysqli->prepare("UPDATE users SET username = ? WHERE id=?");
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$stmt->bind_param("si",$_POST["username"],$id);
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$stmt->execute();
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$stmt->close();
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header("Location: ".WEB_URL."/admin/?do=user&id=".$id);
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}
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}
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/**
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* Changes name and surname of user by POST[ID].
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* @return void
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*/
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public function change_name()
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{
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global $mysqli, $message, $user;
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if (strlen(trim($_POST['name']))==0) {
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$messages[] = _("Name");
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}
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if(strlen(trim($_POST['surname']))==0) {
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$messages[] = _("Surname");
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}
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if (!empty($messages))
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{
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$message = "Please enter ".implode(", ", $messages);
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return;
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}
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$id = $this->id;
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if ($_SESSION['user'] != $id && $user->get_rank()>0)
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{
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$message = _("Cannot change names of other users!");
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}else{
|
|
$stmt = $mysqli->prepare("UPDATE users SET `name` = ?, `surname` = ? WHERE id=?");
|
|
$stmt->bind_param("ssi",$_POST["name"],$_POST["surname"],$id);
|
|
$stmt->execute();
|
|
$stmt->close();
|
|
header("Location: ".WEB_URL."/admin/?do=user&id=".$id);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Changes user password and deletes all remember tokens so all other sessions
|
|
* won't stay logged in without knowing new pass. Uses token when reseting password.
|
|
* @param String $token
|
|
* @return void
|
|
*/
|
|
public function change_password($token = false)
|
|
{
|
|
global $mysqli, $message;
|
|
$id = $this->id;
|
|
if ($_POST['password']!=$_POST['password_repeat'])
|
|
{
|
|
$message = _("Passwords do not match!");
|
|
return;
|
|
}
|
|
|
|
if (!$token)
|
|
{
|
|
if ($_SESSION['user']!=$id)
|
|
{
|
|
$message = _("Cannot change password of other users!");
|
|
}else{
|
|
$stmt = $mysqli->prepare("SELECT password_salt as salt FROM users WHERE id=?");
|
|
$stmt->bind_param("i", $id);
|
|
$stmt->execute();
|
|
$query = $stmt->get_result();
|
|
$result = $query->fetch_assoc();
|
|
|
|
$salt = $result['salt'];
|
|
$pass = $_POST['old_password'];
|
|
$hash = hash('sha256', $pass.$salt);
|
|
|
|
$stmt = $mysqli->prepare("SELECT count(*) as count FROM users WHERE id=? AND password_hash = ?");
|
|
$stmt->bind_param("is", $id, $hash);
|
|
$stmt->execute();
|
|
|
|
if ($stmt->get_result()->fetch_assoc()['count'])
|
|
{
|
|
$pass = $_POST['password'];
|
|
$hash = hash('sha256', $pass.$salt);
|
|
$stmt = $mysqli->prepare("UPDATE users SET password_hash = ? WHERE id=?");
|
|
$stmt->bind_param("si", $hash, $id);
|
|
$stmt->execute();
|
|
$stmt->close();
|
|
|
|
$stmt = $mysqli->prepare("DELETE FROM tokens WHERE user = ? AND data = 'remember'");
|
|
$stmt->bind_param("d", $id);
|
|
$stmt->execute();
|
|
$stmt->get_result();
|
|
|
|
User::logout();
|
|
}
|
|
else{
|
|
$message = _("Wrong password!");
|
|
}
|
|
}
|
|
}else{
|
|
if (Token::validate($token, $id, "passwd"))
|
|
{
|
|
$stmt = $mysqli->prepare("SELECT password_salt as salt FROM users WHERE id=?");
|
|
$stmt->bind_param("i", $id);
|
|
$stmt->execute();
|
|
$query = $stmt->get_result();
|
|
$result = $query->fetch_assoc();
|
|
|
|
$salt = $result['salt'];
|
|
$pass = $_POST['password'];
|
|
$hash = hash('sha256', $pass.$salt);
|
|
|
|
$stmt = $mysqli->prepare("UPDATE users SET password_hash = ? WHERE id=?");
|
|
$stmt->bind_param("si", $hash,$id);
|
|
$stmt->execute();
|
|
$stmt->close();
|
|
|
|
$stmt = $mysqli->prepare("DELETE FROM tokens WHERE user = ? AND data = 'remember'");
|
|
$stmt->bind_param("d", $id);
|
|
$stmt->execute();
|
|
$stmt->get_result();
|
|
}
|
|
else
|
|
{
|
|
$message = _("Invalid token detected, please retry your request from start!");
|
|
}
|
|
Token::delete($token);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sends email with link for password reset, link is token protected and valid only once.
|
|
* @return void
|
|
*/
|
|
public static function password_link()
|
|
{
|
|
global $mysqli;
|
|
$email = $_POST['email'];
|
|
|
|
$stmt = $mysqli->prepare("SELECT id FROM users WHERE email=?");
|
|
$stmt->bind_param("s", $email);
|
|
$stmt->execute();
|
|
$query = $stmt->get_result();
|
|
|
|
$id = $query->fetch_assoc()['id'];
|
|
$time = strtotime('+1 day', time());
|
|
|
|
$token = Token::add($id, 'passwd', $time);
|
|
|
|
$link = WEB_URL."/admin/?do=lost-password&id=$id&token=$token";
|
|
$to = $email;
|
|
$user = new User($id);
|
|
$subject = _('Reset password') . ' - '.NAME;
|
|
$msg = sprintf(_( "Hi %s!<br>Below you will find link to change your password. The link is valid for 24hrs. If you didn't request this, feel free to ignore it. <br><br><a href=\"%s\">RESET PASSWORD</a><br><br>If the link doesn't work, copy & paste it into your browser: <br>%s"), $user->get_name(), $link, $link);
|
|
$headers = "Content-Type: text/html; charset=utf-8 ".PHP_EOL;
|
|
$headers .= "MIME-Version: 1.0 ".PHP_EOL;
|
|
$headers .= "From: ".MAILER_NAME.' <'.MAILER_ADDRESS.'>'.PHP_EOL;
|
|
$headers .= "Reply-To: ".MAILER_NAME.' <'.MAILER_ADDRESS.'>'.PHP_EOL;
|
|
|
|
mail($to, $subject, $msg, $headers);
|
|
}
|
|
|
|
/**
|
|
* Sends email with link for email change confirmation (security reasons), link is token protected and valid only once.
|
|
* @return void
|
|
*/
|
|
public function email_link(){
|
|
global $user, $mysqli;
|
|
|
|
$email = $_POST['email'];
|
|
$id = $this->id;
|
|
|
|
if ($user->get_rank()<1 && $id!=$_SESSION['user'])
|
|
{
|
|
$stmt = $mysqli->prepare("UPDATE users SET email = ? WHERE id=?");
|
|
$stmt->bind_param("sd", $email, $id);
|
|
$stmt->execute();
|
|
$stmt->get_result();
|
|
header("Location: ".WEB_URL."/admin/?do=user&id=".$id);
|
|
return;
|
|
}
|
|
|
|
$time = strtotime('+1 day', time());
|
|
|
|
$token = Token::add($id, 'email;$email', $time);
|
|
|
|
$link = WEB_URL."/admin/?do=change-email&id=$id&token=$token";
|
|
$to = $email;
|
|
$subject = _('Email change').' - '.NAME;
|
|
$msg = sprintf(_( "Hi %s!<br>Below you will find link to change your email. The link is valid for 24hrs. If you didn't request this, feel free to ignore it. <br><br><a href=\"%s\">CHANGE EMAIL</a><br><br>If the link doesn't work, copy & paste it into your browser: <br>%s"), $user->get_name(), $link, $link);
|
|
$headers = "Content-Type: text/html; charset=utf-8 ".PHP_EOL;
|
|
$headers .= "MIME-Version: 1.0 ".PHP_EOL;
|
|
$headers .= "From: ".MAILER_NAME.' <'.MAILER_ADDRESS.'>'.PHP_EOL;
|
|
$headers .= "Reply-To: ".MAILER_NAME.' <'.MAILER_ADDRESS.'>'.PHP_EOL;
|
|
|
|
mail($to, $subject, $msg, $headers);
|
|
return _('Confirmation email sent!');
|
|
}
|
|
|
|
/**
|
|
* Changes email.
|
|
* @return void
|
|
*/
|
|
public function change_email()
|
|
{
|
|
global $mysqli, $message;
|
|
$token = $_GET['token'];
|
|
$id = $_GET['id'];
|
|
|
|
if (Token::validate($token, $id, "email;%"))
|
|
{
|
|
$data = explode(";", Token::get_data($token, $id));
|
|
|
|
$email = $data[1];
|
|
|
|
$stmt = $mysqli->prepare("UPDATE users SET email = ? WHERE id=?");
|
|
$stmt->bind_param("sd", $email, $id);
|
|
$stmt->execute();
|
|
$stmt->get_result();
|
|
Token::delete($token);
|
|
header("Location: ".WEB_URL."/admin/");
|
|
}
|
|
else
|
|
{
|
|
$message = _("Invalid token detected, please retry your request from start!");
|
|
}
|
|
|
|
Token::delete($token);
|
|
|
|
}
|
|
|
|
/**
|
|
* Logs current user out.
|
|
* @return void
|
|
*/
|
|
public static function logout(){
|
|
session_unset();
|
|
if (isset($_COOKIE['token']))
|
|
{
|
|
$token = $_COOKIE['token'];
|
|
Token::delete($token);
|
|
unset($_COOKIE['user']);
|
|
unset($_COOKIE['token']);
|
|
setcookie('user', null, -1, '/');
|
|
setcookie('token', null, -1, '/');
|
|
}
|
|
header("Location: ".WEB_URL."/admin");
|
|
}
|
|
|
|
/**
|
|
* Changes permissions of current user - only super admin can do this, so it checks permission first.
|
|
* @return void
|
|
*/
|
|
public function change_permission(){
|
|
global $mysqli, $message, $user;
|
|
if ($user->get_rank()==0)
|
|
{
|
|
$permission = $_POST['permission'];
|
|
$id = $_GET['id'];
|
|
$stmt = $mysqli->prepare("UPDATE users SET permission=? WHERE id=?");
|
|
$stmt->bind_param("si", $permission, $id);
|
|
$stmt->execute();
|
|
header("Location: ".WEB_URL."/admin/?do=user&id=".$id);
|
|
}
|
|
else{
|
|
$message = _("You don't have permission to do that!");
|
|
}
|
|
}
|
|
}
|