Files
theoldfitz/inc/users.php
T
David Dyer 242c5165e1 Refactor admin panel: enhance user management and security features
- Added role-based access control for user management links in admin navigation.
- Improved user account display with a dedicated account link.
- Implemented form submission confirmation for delete actions in the admin interface.
- Introduced a password visibility toggle on the login page.
- Added login throttling to prevent brute-force attacks, recording failed attempts.
- Created a CLI script for creating an admin user, replacing the previous hardcoded admin credentials.
- Updated database schema to support login attempt tracking.
- Enhanced user editing functionality, allowing role changes with restrictions.
- Improved modal handling for user actions, ensuring better focus management.
- Added styles for new account management page and improved modal transitions.
2026-10-25 12:58:19 -04:00

105 lines
3.3 KiB
PHP

<?php
declare(strict_types=1);
/**
* Admin user management helpers.
*
* Every read here explicitly selects columns and leaves password_hash
* out, so it can never accidentally end up in a JSON response or a
* data-* attribute the way a full row dump would.
*/
require_once __DIR__ . '/db.php';
const MIN_PASSWORD_LENGTH = 12;
function get_all_users(): array {
$pdo = get_db();
$stmt = $pdo->query("SELECT id, username, role, is_enabled, created_at FROM users ORDER BY username ASC");
return $stmt->fetchAll() ?: [];
}
function get_user_by_id(int $id): ?array {
$pdo = get_db();
$stmt = $pdo->prepare("SELECT id, username, role, is_enabled, created_at FROM users WHERE id = ?");
$stmt->execute([$id]);
$res = $stmt->fetch();
return $res ?: null;
}
function count_users(): int {
$pdo = get_db();
return (int) $pdo->query("SELECT COUNT(*) FROM users")->fetchColumn();
}
function count_enabled_users(): int {
$pdo = get_db();
return (int) $pdo->query("SELECT COUNT(*) FROM users WHERE is_enabled = 1")->fetchColumn();
}
function toggle_user_enabled(int $id): bool {
$pdo = get_db();
$stmt = $pdo->prepare("UPDATE users SET is_enabled = CASE WHEN is_enabled = 1 THEN 0 ELSE 1 END WHERE id = ?");
return $stmt->execute([$id]);
}
function validate_username(string $username): ?string {
if ($username === '') {
return 'Username is required.';
}
if (strlen($username) < 3 || strlen($username) > 32) {
return 'Username must be between 3 and 32 characters.';
}
if (!preg_match('/^[a-zA-Z0-9_.-]+$/', $username)) {
return 'Username can only contain letters, numbers, and . _ -';
}
return null;
}
function username_exists(string $username, ?int $excludeId = null): bool {
$pdo = get_db();
if ($excludeId !== null) {
$stmt = $pdo->prepare("SELECT 1 FROM users WHERE username = ? AND id != ?");
$stmt->execute([$username, $excludeId]);
} else {
$stmt = $pdo->prepare("SELECT 1 FROM users WHERE username = ?");
$stmt->execute([$username]);
}
return (bool) $stmt->fetchColumn();
}
function create_user(string $username, string $password, string $role): int {
$pdo = get_db();
$hash = password_hash($password, PASSWORD_DEFAULT);
$stmt = $pdo->prepare("INSERT INTO users (username, password_hash, role) VALUES (?, ?, ?)");
$stmt->execute([$username, $hash, $role]);
return (int) $pdo->lastInsertId();
}
function update_user(int $id, string $username, string $role): bool {
$pdo = get_db();
$stmt = $pdo->prepare("UPDATE users SET username = ?, role = ? WHERE id = ?");
return $stmt->execute([$username, $role, $id]);
}
function set_user_password(int $id, string $newPassword): bool {
$pdo = get_db();
$hash = password_hash($newPassword, PASSWORD_DEFAULT);
$stmt = $pdo->prepare("UPDATE users SET password_hash = ? WHERE id = ?");
return $stmt->execute([$hash, $id]);
}
function verify_user_password(int $id, string $password): bool {
$pdo = get_db();
$stmt = $pdo->prepare("SELECT password_hash FROM users WHERE id = ?");
$stmt->execute([$id]);
$hash = $stmt->fetchColumn();
return is_string($hash) && password_verify($password, $hash);
}
function delete_user(int $id): bool {
$pdo = get_db();
$stmt = $pdo->prepare("DELETE FROM users WHERE id = ?");
return $stmt->execute([$id]);
}