Harwinder Sekhon
66e4905796
Behind a proxy REMOTE_ADDR is the proxy, so the per-IP limit would lump every visitor together. New optional CLIENT_IP_HEADER in config.php (e.g. 'CF-Connecting-IP') tells the throttle which header carries the real address; invalid or absent values fall back to REMOTE_ADDR, and configs that predate the setting behave as before. Only for origins unreachable except through the proxy — documented in the README, which also covers the mod_remoteip/real_ip alternative. Claude-Session: https://claude.ai/code/session_01SePf61iazhCLJBefdRLBDm
78 lines
2.4 KiB
PHP
78 lines
2.4 KiB
PHP
<?php
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// GET api/auth.php -> {logged_in, username}
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// POST api/auth.php {action, username?, password?}
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// action: login | register | logout
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require_once __DIR__ . '/../includes/auth.php';
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header('Content-Type: application/json');
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if ($_SERVER['REQUEST_METHOD'] === 'GET') {
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echo json_encode([
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'logged_in' => currentUserId() !== null,
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'username' => currentUsername(),
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'allow_registration' => ALLOW_REGISTRATION,
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'csrf' => csrfToken(),
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]);
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exit;
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}
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if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
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http_response_code(405);
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echo json_encode(['error' => 'Method not allowed']);
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exit;
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}
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$data = json_decode(file_get_contents('php://input'), true) ?: [];
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verifyCsrfApi($data);
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$action = $data['action'] ?? '';
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$username = trim($data['username'] ?? '');
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$password = $data['password'] ?? '';
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$ip = clientIp();
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switch ($action) {
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case 'login':
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$wait = loginRetryAfter($username, $ip);
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if ($wait > 0) {
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http_response_code(429);
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header('Retry-After: ' . $wait);
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echo json_encode(['error' => 'Too many failed sign-in attempts. '
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. 'Try again in ' . max(1, (int)ceil($wait / 60)) . ' min.']);
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break;
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}
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if (attemptLogin($username, $password)) {
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clearLoginFailures($username);
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echo json_encode(['ok' => true, 'username' => currentUsername(), 'csrf' => csrfToken()]);
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} else {
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recordLoginFailure($username, $ip);
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http_response_code(401);
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echo json_encode(['error' => 'Invalid username or password.']);
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}
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break;
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case 'register':
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if (!ALLOW_REGISTRATION) {
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http_response_code(403);
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echo json_encode(['error' => 'Registration is disabled.']);
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break;
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}
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$result = registerUser($username, $password);
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if ($result === true) {
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attemptLogin($username, $password);
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echo json_encode(['ok' => true, 'username' => currentUsername(), 'csrf' => csrfToken()]);
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} else {
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http_response_code(422);
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echo json_encode(['error' => $result]);
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}
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break;
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case 'logout':
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$_SESSION = [];
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session_destroy();
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echo json_encode(['ok' => true]);
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break;
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default:
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http_response_code(400);
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echo json_encode(['error' => 'Unknown action']);
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}
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