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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Attribute-based route loader |
| 5 | * |
| 6 | * This Source Code Form is subject to the terms of the Mozilla Public License, |
| 7 | * v. 2.0. If a copy of the MPL was not distributed with this file, You can |
| 8 | * obtain one at https://mozilla.org/MPL/2.0/. |
| 9 | * |
| 10 | * @package phpMyFAQ |
| 11 | * @author Thorsten Rinne <thorsten@phpmyfaq.de> |
| 12 | * @copyright 2026 phpMyFAQ Team |
| 13 | * @license https://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0 |
| 14 | * @link https://www.phpmyfaq.de |
| 15 | * @since 2026-01-18 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpMyFAQ\Routing; |
| 21 | |
| 22 | use Exception; |
| 23 | use FilesystemIterator; |
| 24 | use RecursiveDirectoryIterator; |
| 25 | use RecursiveIteratorIterator; |
| 26 | use ReflectionAttribute; |
| 27 | use ReflectionClass; |
| 28 | use ReflectionException; |
| 29 | use ReflectionMethod; |
| 30 | use Symfony\Component\Routing\Attribute\Route; |
| 31 | use Symfony\Component\Routing\Route as SymfonyRoute; |
| 32 | use Symfony\Component\Routing\RouteCollection; |
| 33 | |
| 34 | /** |
| 35 | * Class AttributeRouteLoader |
| 36 | * |
| 37 | * Scans controller directories for classes with #[Route] attributes |
| 38 | * and builds a RouteCollection from discovered routes. |
| 39 | */ |
| 40 | class AttributeRouteLoader |
| 41 | { |
| 42 | /** |
| 43 | * Load routes from controller attributes in the specified directory. |
| 44 | * |
| 45 | * @param string $controllerDir The directory to scan for controllers |
| 46 | * @param string $context The routing context ('public', 'admin', 'api') |
| 47 | * @return RouteCollection Collection of discovered routes |
| 48 | */ |
| 49 | public function load(string $controllerDir, string $context = 'public'): RouteCollection |
| 50 | { |
| 51 | $routes = new RouteCollection(); |
| 52 | |
| 53 | if (!is_dir($controllerDir)) { |
| 54 | return $routes; |
| 55 | } |
| 56 | |
| 57 | $files = $this->findControllerFiles($controllerDir); |
| 58 | |
| 59 | foreach ($files as $file) { |
| 60 | $class = $this->getClassFromFile($file); |
| 61 | if (!$class || !class_exists($class)) { |
| 62 | continue; |
| 63 | } |
| 64 | |
| 65 | try { |
| 66 | $reflectionClass = new ReflectionClass($class); |
| 67 | foreach ($reflectionClass->getMethods(ReflectionMethod::IS_PUBLIC) as $method) { |
| 68 | $attributes = $method->getAttributes(Route::class); |
| 69 | foreach ($attributes as $attribute) { |
| 70 | $route = $this->createRouteFromAttribute($attribute, $class, $method->getName()); |
| 71 | if ($route && $this->matchesContext($route, $context)) { |
| 72 | $routeName = $route->getDefault('_route'); |
| 73 | $name = is_string($routeName) && $routeName !== '' |
| 74 | ? $routeName |
| 75 | : 'route_' . md5($class . $method->getName()); |
| 76 | $routes->add($name, $route); |
| 77 | } |
| 78 | } |
| 79 | } |
| 80 | } catch (ReflectionException) { |
| 81 | // Skip classes that can't be reflected |
| 82 | continue; |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | return $routes; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Find all PHP controller files in the directory. |
| 91 | * |
| 92 | * @param string $directory The directory to scan |
| 93 | * @return array<string> Array of file paths |
| 94 | */ |
| 95 | private function findControllerFiles(string $directory): array |
| 96 | { |
| 97 | $files = []; |
| 98 | |
| 99 | $iterator = new RecursiveIteratorIterator( |
| 100 | new RecursiveDirectoryIterator($directory, FilesystemIterator::SKIP_DOTS), |
| 101 | RecursiveIteratorIterator::SELF_FIRST, |
| 102 | ); |
| 103 | |
| 104 | foreach ($iterator as $file) { |
| 105 | if (!$file instanceof \SplFileInfo || strtolower($file->getExtension()) !== 'php' || !$file->isFile()) { |
| 106 | continue; |
| 107 | } |
| 108 | |
| 109 | $files[] = $file->getPathname(); |
| 110 | } |
| 111 | |
| 112 | return $files; |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Extract the fully qualified class name from a PHP file. |
| 117 | * |
| 118 | * @param string $file The file path |
| 119 | * @return string|null The fully qualified class name or null if not found |
| 120 | */ |
| 121 | private function getClassFromFile(string $file): ?string |
| 122 | { |
| 123 | $content = file_get_contents($file); |
| 124 | if ($content === false) { |
| 125 | return null; |
| 126 | } |
| 127 | |
| 128 | // Extract namespace |
| 129 | $namespace = null; |
| 130 | $matches = []; |
| 131 | if (preg_match('/namespace\s+([^;]+);/', $content, $matches)) { |
| 132 | $namespace = $matches[1]; |
| 133 | } |
| 134 | |
| 135 | // Extract class name |
| 136 | $className = null; |
| 137 | if (preg_match('/(?:class|interface|trait)\s+(\w+)/', $content, $matches)) { |
| 138 | $className = $matches[1]; |
| 139 | } |
| 140 | |
| 141 | if ($namespace && $className) { |
| 142 | return $namespace . '\\' . $className; |
| 143 | } |
| 144 | |
| 145 | return null; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Create a Symfony Route from a Route attribute. |
| 150 | * |
| 151 | * @param ReflectionAttribute $attribute The Route attribute |
| 152 | * @param string $class The controller class name |
| 153 | * @param string $method The controller method name |
| 154 | * @return SymfonyRoute|null The created route or null if invalid |
| 155 | */ |
| 156 | private function createRouteFromAttribute( |
| 157 | ReflectionAttribute $attribute, |
| 158 | string $class, |
| 159 | string $method, |
| 160 | ): ?SymfonyRoute { |
| 161 | try { |
| 162 | /** @var Route $routeAttribute */ |
| 163 | $routeAttribute = $attribute->newInstance(); |
| 164 | |
| 165 | // Extract route properties |
| 166 | $path = $routeAttribute->path; |
| 167 | if (!is_string($path)) { |
| 168 | return null; |
| 169 | } |
| 170 | |
| 171 | $name = $routeAttribute->name ?? ''; |
| 172 | $methods = $routeAttribute->methods; |
| 173 | $defaults = $routeAttribute->defaults; |
| 174 | $requirements = $routeAttribute->requirements; |
| 175 | $options = $routeAttribute->options; |
| 176 | $host = $routeAttribute->host; |
| 177 | $schemes = $routeAttribute->schemes; |
| 178 | $condition = $routeAttribute->condition; |
| 179 | |
| 180 | // Set controller in defaults |
| 181 | $defaults['_controller'] = $class . '::' . $method; |
| 182 | |
| 183 | // Create Symfony Route |
| 184 | $route = new SymfonyRoute( |
| 185 | path: $path, |
| 186 | defaults: $defaults, |
| 187 | requirements: $requirements, |
| 188 | options: $options, |
| 189 | host: $host, |
| 190 | schemes: $schemes, |
| 191 | methods: $methods, |
| 192 | condition: $condition, |
| 193 | ); |
| 194 | |
| 195 | // Store the name in the route for later retrieval |
| 196 | $route->setDefault('_route', $name); |
| 197 | |
| 198 | return $route; |
| 199 | } catch (Exception) { |
| 200 | return null; |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | /** |
| 205 | * Check if a route matches the specified context. |
| 206 | * |
| 207 | * @param SymfonyRoute $route The route to check |
| 208 | * @param string $context The context to match against |
| 209 | * @return bool True if the route matches the context |
| 210 | */ |
| 211 | private function matchesContext(SymfonyRoute $route, string $context): bool |
| 212 | { |
| 213 | $routeName = (string) ($route->getDefault('_route') ?? ''); |
| 214 | |
| 215 | if ($routeName === '') { |
| 216 | return true; // Allow routes without names |
| 217 | } |
| 218 | |
| 219 | return match ($context) { |
| 220 | 'admin' => str_starts_with($routeName, 'admin.') && !str_starts_with($routeName, 'admin.api.'), |
| 221 | 'admin-api' => str_starts_with($routeName, 'admin.api.'), |
| 222 | 'api' => str_starts_with($routeName, 'api.') && !str_starts_with($routeName, 'admin.api.'), |
| 223 | 'public' => str_starts_with($routeName, 'public.'), |
| 224 | default => true, |
| 225 | }; |
| 226 | } |
| 227 | } |