api.php

api.php

@@ -0,0 +1,142 @@
+<?php
+
+declare(strict_types=1);
+
+header('Content-Type: application/json; charset=utf-8');
+header('Cache-Control: no-store');
+
+if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
+    http_response_code(204);
+    exit;
+}
+
+$secret = load_secret();
+$requestSecret = $_SERVER['HTTP_X_ROUTES_SECRET'] ?? '';
+
+if ($secret === '' || !hash_equals($secret, $requestSecret)) {
+    respond(401, ['error' => 'Unauthorized']);
+}
+
+$dataDir = __DIR__ . '/data';
+$dataFile = $dataDir . '/routes.json';
+
+if ($_SERVER['REQUEST_METHOD'] === 'GET') {
+    respond(200, ['routes' => read_routes($dataFile)]);
+}
+
+if ($_SERVER['REQUEST_METHOD'] === 'PUT' || $_SERVER['REQUEST_METHOD'] === 'POST') {
+    $payload = json_decode((string) file_get_contents('php://input'), true);
+
+    if (!is_array($payload) || !isset($payload['routes']) || !is_array($payload['routes'])) {
+        respond(400, ['error' => 'Invalid payload']);
+    }
+
+    $routes = array_map('sanitize_route', $payload['routes']);
+    write_routes($dataDir, $dataFile, $routes);
+    respond(200, ['ok' => true, 'routes' => $routes]);
+}
+
+respond(405, ['error' => 'Method not allowed']);
+
+function load_secret(): string
+{
+    $configFile = __DIR__ . '/config.js';
+    if (!is_file($configFile)) {
+        return '';
+    }
+
+    $config = (string) file_get_contents($configFile);
+    if (preg_match('/ROUTES_SECRET\s*=\s*(["\'])(.*?)\1\s*;?/', $config, $matches)) {
+        return stripcslashes($matches[2]);
+    }
+
+    return '';
+}
+
+function read_routes(string $dataFile): array
+{
+    if (!is_file($dataFile)) {
+        return [];
+    }
+
+    $handle = fopen($dataFile, 'rb');
+    if ($handle === false) {
+        respond(500, ['error' => 'Could not open routes file']);
+    }
+
+    flock($handle, LOCK_SH);
+    $contents = stream_get_contents($handle) ?: '[]';
+    flock($handle, LOCK_UN);
+    fclose($handle);
+
+    $routes = json_decode($contents, true);
+    return is_array($routes) ? $routes : [];
+}
+
+function write_routes(string $dataDir, string $dataFile, array $routes): void
+{
+    if (!is_dir($dataDir) && !mkdir($dataDir, 0775, true) && !is_dir($dataDir)) {
+        respond(500, ['error' => 'Could not create data directory']);
+    }
+
+    $tmpFile = $dataFile . '.tmp';
+    $json = json_encode($routes, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
+    if ($json === false) {
+        respond(500, ['error' => 'Could not encode routes']);
+    }
+
+    $handle = fopen($tmpFile, 'wb');
+    if ($handle === false) {
+        respond(500, ['error' => 'Could not write routes file']);
+    }
+
+    flock($handle, LOCK_EX);
+    fwrite($handle, $json);
+    fflush($handle);
+    flock($handle, LOCK_UN);
+    fclose($handle);
+
+    if (!rename($tmpFile, $dataFile)) {
+        @unlink($tmpFile);
+        respond(500, ['error' => 'Could not save routes file']);
+    }
+}
+
+function sanitize_route(array $route): array
+{
+    $clean = [
+        'id' => trim((string) ($route['id'] ?? '')),
+        'name' => trim((string) ($route['name'] ?? '')),
+        'link' => trim((string) ($route['link'] ?? '')),
+        'date' => trim((string) ($route['date'] ?? '')),
+        'archived' => (bool) ($route['archived'] ?? false),
+        'picture' => (string) ($route['picture'] ?? ''),
+        'description' => trim((string) ($route['description'] ?? '')),
+        'updatedAt' => trim((string) ($route['updatedAt'] ?? '')),
+    ];
+
+    if ($clean['id'] === '' || $clean['name'] === '' || $clean['link'] === '') {
+        respond(400, ['error' => 'Route id, name, and link are required']);
+    }
+
+    if (!filter_var($clean['link'], FILTER_VALIDATE_URL)) {
+        respond(400, ['error' => 'Invalid route link']);
+    }
+
+    if ($clean['date'] !== '' && !preg_match('/^\d{4}-\d{2}-\d{2}$/', $clean['date'])) {
+        respond(400, ['error' => 'Invalid route date']);
+    }
+
+    if ($clean['picture'] !== '' && !str_starts_with($clean['picture'], 'data:image/') && !filter_var($clean['picture'], FILTER_VALIDATE_URL)) {
+        respond(400, ['error' => 'Invalid route picture']);
+    }
+
+    return $clean;
+}
+
+function respond(int $status, array $payload): never
+{
+    http_response_code($status);
+    echo json_encode($payload, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
+    exit;
+}