username = $username;
$this->password = $password;
}
public function getUsername(): string
{
return $this->username;
}
public function getPassword(): string
{
return $this->password;
}
}
class User
{
private int $id;
private ?array $spaces;
private string $username;
private ?DateTime $createdAt;
private ?DateTime $lastActive;
private bool $isActive;
private ?string $profilePicture;
private ?string $bio;
private ?string $website;
private int $role;
public function __construct(int $id = -1, ?array $spaces, string $username, ?string $profilePicture = null, ?string $bio = null, ?string $website = null, int $role = 3)
{
// Basic XSS prevention on construction (can be enhanced)
$username = htmlspecialchars($username, ENT_QUOTES, 'UTF-8');
$bio = htmlspecialchars($bio ?? '', ENT_QUOTES, 'UTF-8');
$website = htmlspecialchars($website ?? '', ENT_QUOTES, 'UTF-8');
$profilePicture = htmlspecialchars($profilePicture ?? 'default-profile.png', ENT_QUOTES, 'UTF-8');
// Basic SQL injection prevention (should primarily rely on prepared statements)
if (preg_match('/[\'";\-\_]/', $username) || preg_match('/[\'";\-\_]/', $bio) || preg_match('/[\'";\-\_]/', $website) || preg_match('/[\'";\-\_]/', $profilePicture)) {
throw new InvalidArgumentException('Invalid characters in user data.');
}
$this->username = $username;
$this->profilePicture = $profilePicture;
$this->bio = $bio;
$this->website = $website;
$this->createdAt = new DateTime();
$this->lastActive = null;
$this->isActive = false;
$this->role = $role;
$this->spaces = null;
if ($id == -1) {
$this->id = randomId(0);
$stmt = 'INSERT INTO user (userId, username, profilePicture, bio, website) VALUES (?, ?, ?, ?, ?)';
exec_stmt($stmt, 'issss', $this->id, $this->username, $this->profilePicture, $this->bio, $this->website);
} else
$this->id = $id;
}
public static function exists(int $id): bool
{
$stmt = 'SELECT count(id) FROM user WHERE id = ?';
$result = exec_stmt($stmt, 'i', $id)->fetch_assoc();
if ($result['count(id)'] == 1)
return true;
else if ($result['count(id)'] > 1)
return true;
else
return false;
}
public static function retrieveFromDB(int $userId): ?User
{
$stmt = 'SELECT id, username, profilePicture, bio, website FROM user WHERE id = ?';
$user = exec_stmt($stmt, 'i', $userId)->fetch_assoc();
if ($user) {
return new User($user['id'], null, $user['username'], $user['profilePicture'], $user['bio'], $user['website']);
} else {
return null;
}
}
public static function getSignupHTML()
{
$html = '
';
return $html;
}
public static function getLoginHTML()
{
$html = '
Log In
';
return $html;
}
public static function login(LoginCredentials $credentials): ?User
{
$stmt = 'SELECT id, username, email, passwordHash, role, profilePicture, bio, website FROM user WHERE username = ?';
$user = exec_stmt($stmt, 's', $credentials->getUsername())->fetch_assoc();
if (!password_verify($credentials->getPassword(), $user['passwordHash']))
return null;
else
return new User($user['id'], null, $user['username'], $user['profilePicture'], $user['bio'], $user['website']);
}
public static function logout(): void
{
foreach (array_keys($_SESSION) as $key) {
unset($_SESSION[$key]);
}
// Consider destroying the session cookie as well: session_destroy();
header('Location: .'); // Redirect to the homepage or login page
exit();
}
public function getHomeSpace()
{
// TODO: Need to implement. Requires fleshing out additional space types.
return Space::retrieveFromDB(1, 1);
}
public function getSpaces()
{
$stmt = 'SELECT * FROM spaceMembers WHERE user = ?';
$spaces = [];
$rawSpaces = exec_stmt($stmt, 'i', $this->id);
while ($row = $rawSpaces->fetch_assoc()) {
$spaces[] = Space::retrieveFromDB($row['space'], $row['user']);
}
$this->spaces = $spaces;
return $spaces;
}
public function getRole(): int
{
return $this->role;
}
public function getId(): int
{
return $this->id;
}
public function getUsername(): string
{
return $this->username;
}
public function getCreatedAt(): ?DateTime
{
return $this->createdAt;
}
public function getLastActive(): ?DateTime
{
return $this->lastActive;
}
public function isActive(): bool
{
return $this->isActive;
}
public function getProfilePicture(): ?string
{
return $this->profilePicture;
}
public function getBio(): ?string
{
return $this->bio;
}
public function getWebsite(): ?string
{
return $this->website;
}
public function setLastActive(?DateTime $lastActive): void
{
$this->lastActive = $lastActive;
}
public function setIsActive(bool $isActive): void
{
$this->isActive = $isActive;
}
public function toggleActive(?mysqli $db): bool
{
if (!$db) {
error_log('Database connection not provided for toggleActive.');
return false;
}
$this->isActive = !$this->isActive;
$stmt = $db->prepare('UPDATE user SET is_active = ? WHERE user_id = ?');
if ($stmt) {
$stmt->bind_param('ii', (int) $this->isActive, $this->id);
$result = $stmt->execute();
$stmt->close();
return $result;
} else {
error_log('Error preparing statement: ' . $db->error);
return false;
}
}
public function updateUsername(string $newUsername, ?mysqli $db): bool
{
$newUsername = htmlspecialchars($newUsername, ENT_QUOTES, 'UTF-8');
if (preg_match('/[\'";\-\_]/', $newUsername)) {
throw new InvalidArgumentException('Invalid characters in username.');
}
if (!$db) {
error_log('Database connection not provided for updateUsername.');
return false;
}
$stmt = $db->prepare('UPDATE user SET username = ? WHERE user_id = ?');
if ($stmt) {
$stmt->bind_param('si', $newUsername, $this->id);
$result = $stmt->execute();
$stmt->close();
if ($result) {
$this->username = $newUsername;
return true;
}
} else {
error_log('Error preparing statement: ' . $db->error);
}
return false;
}
public function updatePassword(string $newPassword, ?mysqli $db): bool
{
$newPasswordHash = hash('sha256', $newPassword);
if (!$db) {
error_log('Database connection not provided for updatePassword.');
return false;
}
$stmt = $db->prepare('UPDATE user SET password_hash = ? WHERE user_id = ?');
if ($stmt) {
$stmt->bind_param('si', $newPasswordHash, $this->id);
$result = $stmt->execute();
$stmt->close();
return $result;
} else {
error_log('Error preparing statement: ' . $db->error);
}
return false;
}
public function updateProfilePicture(?string $newProfilePicture, ?mysqli $db): bool
{
$newProfilePicture = htmlspecialchars($newProfilePicture ?? 'default-profile.png', ENT_QUOTES, 'UTF-8');
if (preg_match('/[\'";\-\_]/', $newProfilePicture)) {
throw new InvalidArgumentException('Invalid characters in profile picture filename.');
}
if (!$db) {
error_log('Database connection not provided for updateProfilePicture.');
return false;
}
$stmt = $db->prepare('UPDATE user SET profile_picture = ? WHERE user_id = ?');
if ($stmt) {
$stmt->bind_param('si', $newProfilePicture, $this->id);
$result = $stmt->execute();
$stmt->close();
if ($result) {
$this->profilePicture = $newProfilePicture;
return true;
}
} else {
error_log('Error preparing statement: ' . $db->error);
}
return false;
}
public function followUser(int $followingUserId, bool $notify = false, ?mysqli $db): bool
{
if (!$db) {
error_log('Database connection not provided for followUser.');
return false;
}
$stmt = $db->prepare('INSERT INTO follows (follower_user_id, following_user_id, notify_user) VALUES (?, ?, ?)');
if ($stmt) {
$stmt->bind_param('iii', $this->id, $followingUserId, (int) $notify);
$result = $stmt->execute();
$stmt->close();
return $result;
} else {
error_log('Error preparing statement: ' . $db->error);
return false;
}
}
public function getFollowers(?mysqli $db): array
{
if (!$db) {
error_log('Database connection not provided for getFollowers.');
return [];
}
$stmt = $db->prepare('SELECT u.user_id, u.username, u.profile_picture, u.bio, u.website FROM follows f JOIN user u ON f.follower_user_id = u.user_id WHERE f.following_user_id = ?');
if ($stmt) {
$stmt->bind_param('i', $this->id);
$stmt->execute();
$result = $stmt->get_result();
$followers = [];
while ($row = $result->fetch_assoc()) {
$followers[] = new User(
(int) $row['user_id'],
$row['username'],
$row['profile_picture'],
$row['bio'],
$row['website']
);
}
$stmt->close();
return $followers;
} else {
error_log('Error preparing statement: ' . $db->error);
return [];
}
}
public function getFollowing(?mysqli $db): array
{
if (!$db) {
error_log('Database connection not provided for getFollowing.');
return [];
}
$stmt = $db->prepare('SELECT u.user_id, u.username, u.profile_picture, u.bio, u.website FROM follows f JOIN user u ON f.following_user_id = u.user_id WHERE f.follower_user_id = ?');
if ($stmt) {
$stmt->bind_param('i', $this->id);
$stmt->execute();
$result = $stmt->get_result();
$following = [];
while ($row = $result->fetch_assoc()) {
$following[] = new User(
(int) $row['user_id'],
$row['username'],
$row['profile_picture'],
$row['bio'],
$row['website']
);
}
$stmt->close();
return $following;
} else {
error_log('Error preparing statement: ' . $db->error);
return [];
}
}
}
class Creator extends User {}