FreeSTAR-Status-Engine/classes/user.php

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PHP
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<?php
/**
* Class for creating and rendering an incident
*/
class User
{
private $id;
private $name;
private $surname;
private $username;
private $email;
private $rank;
private $active;
function __construct($id)
{
global $mysqli;
$stmt = $mysqli->prepare("SELECT * FROM users WHERE id=?");
$stmt->bind_param("d", $id);
$stmt->execute();
$query = $stmt->get_result();
if (!$query->num_rows)
{
throw new Exception("User doesn't exist.");
return;
}
$result = $query->fetch_array();
$this->id = $id;
$this->active = $result['active'];
$this->name = $result['name'];
$this->email = $result['email'];
$this->surname = $result['surname'];
$this->username = $result['username'];
$this->rank = $result['permission'];
}
public function get_username()
{
return $this->username;
}
public function get_rank()
{
return $this->rank;
}
public function get_name()
{
return $this->name . " " . $this->surname;
}
public function toggle()
{
global $mysqli, $message, $user;
$id = $_SESSION['user'];
$stmt = $mysqli->prepare("SELECT permission FROM users WHERE id=?");
$stmt->bind_param("i", $id);
$stmt->execute();
$query = $stmt->get_result();
$permission = $result['permission'];
$id = $_GET['id'];
if ($this->id!=$_SESSION['user'] && $user->get_rank()<=1 && ($user->get_rank()<$this->rank))
{
$stmt = $mysqli->prepare("UPDATE users SET active = !active WHERE id=?");
$stmt->bind_param("i", $this->id);
$stmt->execute();
$stmt->close();
header("Location: /admin/?do=user&id=".$id);
}else{
$message = "You don't have the permission to do that!";
}
}
public static function add()
{
global $user, $message, $mysqli;
if (INSTALL_OVERRIDE || $user->get_rank()==0)
{
if (strlen(trim($_POST['name']))==0 || strlen(trim($_POST['surname']))==0 || strlen(trim($_POST['email']))==0 || strlen(trim($_POST['password']))==0 || !isset($_POST['permission']))
{
$message = "Please enter all data!";
}else{
$name = $_POST['name'];
$surname = $_POST['surname'];
$username = $_POST['username'];
$email = $_POST['email'];
$pass = $_POST['password'];
$variables = array();
if (strlen($name)>50){
$variables[] = 'name: 50';
}
if (strlen($surname)>50){
$variables[] = 'surname: 50';
}
if (strlen($username)>50){
$variables[] = 'username: 50';
}
if (strlen($email)>60){
$variables[] = 'email: 60';
}
if (!empty($variables))
{
$message = "Please mind the following character limits: ";
$message .= implode(", ", $variables);
return;
}
$salt = uniqid(mt_rand(), true);
$hash = hash('sha256', $pass.$salt);
$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);
$stmt->execute();
$query = $stmt->get_result();
if ($query->affected_rows>0)
{
$to = $email;
$subject = 'User account created - '.NAME;
$message = 'Hi '.$name." ".$surname."!<br>"."Your account has been created. You can login with your email address at <a href=\"".WEB_URL."/admin\">".WEB_URL."/admin </a> with password ".$pass.". Please change it as soon as possible. ";
$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, $message, $headers);
header("Location: /admin/?do=settings");
}
else{
$message = "Username or email already used";
}
}
}
else {
$message = "Insufficient permission";
}
}
public static function login()
{
global $message, $mysqli;
if (isset($_POST['email']))
{
$email = $_POST['email'];
$pass = $_POST['pass'];
$stmt = $mysqli->prepare("SELECT id,password_salt as salt,active FROM users WHERE email=?");
$stmt->bind_param("s", $email);
$stmt->execute();
$query = $stmt->get_result();
if ($query->num_rows)
{
$result = $query->fetch_assoc();
$salt = $result["salt"];
$id = $result["id"];
$active = $result["active"];
if (!$active)
{
$message = "Your account has been disabled. Please contact administrator.";
}
else
{
$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();
$query = $stmt->get_result();
if (!$query->fetch_assoc()['count'])
{
$message = "Wrong email or password";
}else
{
if (isset($_POST['remember'])&&$_POST['remember'])
{
$year = strtotime('+356 days', time());
$salt = uniqid(mt_rand(), true);
$token = hash('sha256', $id.$salt);
setcookie('token', $token, $year, "/");
setcookie('user', $id, $year, "/");
Token::new($id, 'remember', $year);
}
$_SESSION['user'] = $id;
header("Location: /admin");
}
}
}
else{
$message = "Wrong email or password";
}
}
}
public static function restore_session()
{
global $mysqli, $message;
$id = $_COOKIE['user'];
$token = $_COOKIE['token'];
$time = time();
if (Token::validate_token($token, $id, "remember"))
{
$year = strtotime('+356 days', $timestamp);
unset($_COOKIE['token']);
$_SESSION['user'] = $id;
$salt = uniqid(mt_rand(), true);
$token = hash('sha256', $id.$salt);
setcookie('token', $token, $year);
Token::new($id, 'remember', $year);
}
else
{
unset($_COOKIE['user']);
unset($_COOKIE['token']);
setcookie('user', null, -1, '/');
setcookie('token', null, -1, '/');
$message = "Invalid token detected, please login again!";
}
Token::delete($token);
}
public function render_user_settings()
{
global $permissions, $user;
?>
<div class="row">
<div class="col-md-2 col-md-offset-2"><img src="https://www.gravatar.com/avatar/<?php echo md5( strtolower( trim( $this->email ) ) );?>" alt="Profile picture"></div>
<div class="col-md-6"><h3><?php echo $this->name." ".$this->surname;?></h3></div>
</div>
<div class="row">
<div class="col-md-2 col-md-offset-2"><strong>ID</strong></div>
<div class="col-md-6"><?php echo $this->id; ?></div>
</div>
<div class="row">
<div class="col-md-2 col-md-offset-2"><strong>Username</strong></div>
<div class="col-md-6"><?php echo $this->username."&nbsp;"; if ($this->id!=$_SESSION['user'] && $user->get_rank()<=1 && ($user->get_rank()<$this->rank))
{
echo "<a href='/admin/?do=user&id=".$this->id."&what=toggle'>";
echo "<i class='fa fa-".($this->active?"check success":"times danger")."'></i></a>";
}else{
echo "<i class='fa fa-".($this->active?"check success":"times danger")."'></i>";
}?></div>
</div>
<form action="/admin/?do=user&id=<?php echo $this->id; ?>" method="POST">
<div class="row">
<div class="col-md-2 col-md-offset-2"><strong>Role</strong></div>
<div class="col-md-6"><?php if ($user->get_rank() == 0 && $this->id != $_SESSION['user']){?> <div class="input-group"><select class="form-control" name="permission"><?php foreach ($permissions as $key => $value) {
echo "<option value='$key' ".($key==$this->rank?"selected":"").">$value</option>";
} ?>
</select><span class="input-group-btn">
<button type="submit" class="btn btn-primary pull-right">Change role</button>
</span>
</div><?}else{ echo $permissions[$this->rank];}?></div>
</div>
</form>
<?php if($this->id==$_SESSION['user'])
{?>
<form action="/admin/?do=user" method="POST">
<div class="row">
<div class="col-md-2 col-md-offset-2"><strong>Email</strong></div>
<div class="col-md-6">
<div class="input-group">
<input type="email" class="form-control" name="email" value="<?php echo $this->email; ?>">
<span class="input-group-btn">
<button type="submit" class="btn btn-primary pull-right">Change email</button>
</span>
</div>
</div>
</div>
</form>
<form action="/admin/?do=user" method="POST">
<div class="row">
<div class="col-md-2 col-md-offset-2"><strong>Password</strong></div>
<div class="col-md-6">
<label for="password">Old password</label>
<input id="password" placeholder="Old password" type="password" class="form-control" name="old_password">
<label for="new_password">New password</label>
<input id="new_password" placeholder="New password" type="password" class="form-control" name="password">
<label for="new_password_check">Repeat password</label>
<input id="new_password_check" placeholder="Repeat password" type="password" class="form-control" name="password_repeat">
<button type="submit" class="btn btn-primary pull-right margin-top">Change password</button>
</div>
</div>
</form>
<?php
}
else
{
?>
<div class="row">
<div class="col-md-2 col-md-offset-2"><strong>Email</strong></div>
<div class="col-md-6">
<a href="mailto:<?php echo $this->email; ?>"><?php echo $this->email; ?></a>
</div>
</div>
<?php
}
}
public function change_password($token = false)
{
global $mysqli, $user, $message;
$time = time();
$id = $this->id;
if ($_POST['password']!=$_POST['password_repeat'])
{
$message = "Passwords do not match!";
}else{
if (!$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();
User::logout();
}
else{
$message = "Wrong password!";
}
}
}else{
if (Token::validate_token($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();
}
else
{
$message = "Invalid token detected, please retry your request from start!";
}
Token::delete($token);
}
}
}
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());
$salt = uniqid(mt_rand(), true);
$token = hash('sha256', $id.$salt);
Token::new($id, 'passwd', $time);
$link = WEB_URL."/admin/?do=lost-password&id=$id&token=$token";
$to = $email;
$user = new User($id);
$subject = 'Reset password - '.NAME;
$msg = 'Hi '.$user->get_name()."!<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=\"$link\">RESET PASSWORD</a><br><br>If the link doesn't work, copy & paste it into your browser: <br>$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);
}
public function email_link(){
global $mysqli;
$email = $_POST['email'];
$time = strtotime('+1 day', time());
$salt = uniqid(mt_rand(), true);
$id = $this->id;
$token = hash('sha256', $id.$salt);
Token::new($id, 'email;$email', $time);
$link = WEB_URL."/admin/?do=change-email&id=$id&token=$token";
$to = $email;
$subject = 'Email change - '.NAME;
$msg = 'Hi '.$this->get_name()."!<br>Below you will find link to finish changing your email. The link is valid for 24hrs. If you didn't request this, feel free to ignore it. <br><br><a href=\"$link\">CHANGE EMAIL</a><br><br>If the link doesn't work, copy & paste it into your browser: <br>$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);
}
public function change_email()
{
//TODO: Get message from this somehow
global $mysqli, $message;
$time = time();
$token = $_GET['token'];
$id = $_GET['id'];
if (Token::validate_token($token, $id, "email;%"))
{
$data = explode(";", $result['data']);
$email = $data[1];
$stmt = $mysqli->prepare("UPDATE users SET email = ? WHERE id=?");
$stmt->bind_param("sd", $email, $id);
$stmt->execute();
$query = $stmt->get_result();
Token::delete($token);
header("Location: /admin/");
}
else
{
$message = "Invalid token detected, please retry your request from start!";
}
Token::delete($token);
}
public static function logout(){
global $mysqli;
session_unset();
$token = $_COOKIE['token'];
$time = time();
Token::delete($token);
unset($_COOKIE['user']);
unset($_COOKIE['token']);
setcookie('user', null, -1, '/');
setcookie('token', null, -1, '/');
header("Location: /admin");
}
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);
$stmt->execute();
header("Location: /admin/?do=user&id=".$id);
}
else{
$message = "You don't have permission to do that!";
}
}
}