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| 1 | <?php |
| 2 | /** |
| 3 | * Dual Authentication Middleware |
| 4 | * |
| 5 | * Slim 2.x compatible middleware that supports multiple authentication methods: |
| 6 | * - JWT Bearer tokens (modern API) |
| 7 | * - Legacy API keys (existing mobile apps) |
| 8 | * - PHP Session (web login) |
| 9 | * |
| 10 | * @package BuyerKiosk\Auth\Middleware |
| 11 | */ |
| 12 | |
| 13 | namespace BuyerKiosk\Auth\Middleware; |
| 14 | |
| 15 | use BuyerKiosk\Auth\Services\TokenService; |
| 16 | |
| 17 | class DualAuthMiddleware extends \Slim\Middleware |
| 18 | { |
| 19 | /** |
| 20 | * @var TokenService|null Token service instance |
| 21 | */ |
| 22 | private $tokenService; |
| 23 | |
| 24 | /** |
| 25 | * @var array Routes that don't require authentication |
| 26 | */ |
| 27 | private $publicRoutes = [ |
| 28 | '/auth/login', |
| 29 | '/auth/refresh', |
| 30 | '/auth/forgot-password', |
| 31 | '/account/login', |
| 32 | '/account/register', |
| 33 | '/account/forgot-password', |
| 34 | '/account/activate', |
| 35 | '/account/resend-activation', |
| 36 | '/account/captcha', |
| 37 | '/api/mobile/auth', |
| 38 | '/public' |
| 39 | ]; |
| 40 | |
| 41 | /** |
| 42 | * Constructor |
| 43 | * |
| 44 | * @param TokenService|null $tokenService Token service (auto-created if null) |
| 45 | */ |
| 46 | public function __construct(?TokenService $tokenService = null) |
| 47 | { |
| 48 | $this->tokenService = $tokenService; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Slim 2 middleware entry point |
| 53 | */ |
| 54 | public function call() |
| 55 | { |
| 56 | $app = $this->app; |
| 57 | $request = $app->request; |
| 58 | $path = $request->getPathInfo(); |
| 59 | |
| 60 | // Check if route is public |
| 61 | if ($this->isPublicRoute($path)) { |
| 62 | $this->next->call(); |
| 63 | return; |
| 64 | } |
| 65 | |
| 66 | // Get Authorization header (Slim 2 idiom) |
| 67 | $auth = $request->headers->get('Authorization'); |
| 68 | $auth = !empty($auth) ? $auth : null; |
| 69 | |
| 70 | // Get X-Api-Key header for legacy mobile apps |
| 71 | $xApiKey = $request->headers->get('X-Api-Key'); |
| 72 | $hasXApiKey = !empty($xApiKey); |
| 73 | |
| 74 | // Try JWT Bearer authentication |
| 75 | if ($auth !== null && $this->startsWith($auth, 'Bearer ')) { |
| 76 | $this->handleJwtAuth($auth); |
| 77 | $this->next->call(); |
| 78 | return; |
| 79 | } |
| 80 | |
| 81 | // Try legacy API key authentication |
| 82 | if (($auth !== null && $this->startsWith($auth, 'ApiKey ')) || $hasXApiKey) { |
| 83 | $apiKey = $hasXApiKey ? $xApiKey : substr($auth, 7); |
| 84 | $this->handleLegacyApiKey($apiKey); |
| 85 | $this->next->call(); |
| 86 | return; |
| 87 | } |
| 88 | |
| 89 | // Try session authentication |
| 90 | if ($this->hasValidSession()) { |
| 91 | $this->handleSessionAuth(); |
| 92 | $this->next->call(); |
| 93 | return; |
| 94 | } |
| 95 | |
| 96 | // No valid authentication |
| 97 | $this->unauthorized('No valid authentication provided'); |
| 98 | } |
| 99 | |
| 100 | /** |
| 101 | * Handle JWT Bearer token authentication |
| 102 | * |
| 103 | * @param string $authHeader Full Authorization header |
| 104 | */ |
| 105 | private function handleJwtAuth(string $authHeader): void |
| 106 | { |
| 107 | $token = substr($authHeader, 7); // Remove "Bearer " |
| 108 | |
| 109 | $tokenService = $this->getTokenService(); |
| 110 | $payload = $tokenService->validateAccessToken($token); |
| 111 | |
| 112 | if (!$payload) { |
| 113 | $this->unauthorized('Invalid or expired access token'); |
| 114 | return; |
| 115 | } |
| 116 | |
| 117 | // Set user context in app environment |
| 118 | $this->setAuthContext([ |
| 119 | 'method' => 'jwt', |
| 120 | 'user_id' => $payload['sub'] ?? null, |
| 121 | 'user' => $payload['user'] ?? null, |
| 122 | 'stores' => $payload['stores'] ?? [], |
| 123 | 'permissions' => $payload['permissions'] ?? [], |
| 124 | 'token_id' => $payload['jti'] ?? null |
| 125 | ]); |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * Handle legacy API key authentication |
| 130 | * |
| 131 | * @param string $apiKey The API key |
| 132 | */ |
| 133 | private function handleLegacyApiKey(string $apiKey): void |
| 134 | { |
| 135 | $app = $this->app; |
| 136 | |
| 137 | // Use existing API key validation from MySqlUser |
| 138 | try { |
| 139 | $db = dbConnectByName('kiosk_users'); |
| 140 | |
| 141 | // Look up API key in uf_apiKey_user table |
| 142 | $stmt = $db->prepare(" |
| 143 | SELECT au.userID, au.active, u.user_name, u.display_name, u.email, u.enabled |
| 144 | FROM uf_apiKey_user au |
| 145 | JOIN uf_user u ON au.userID = u.id |
| 146 | WHERE au.key = :key |
| 147 | LIMIT 1 |
| 148 | "); |
| 149 | $stmt->execute(['key' => $apiKey]); |
| 150 | $row = $stmt->fetch(\PDO::FETCH_ASSOC); |
| 151 | |
| 152 | if (!$row || !$row['active'] || !$row['enabled']) { |
| 153 | $this->unauthorized('Invalid or inactive API key'); |
| 154 | return; |
| 155 | } |
| 156 | |
| 157 | // Load user's stores from legacy store_user table |
| 158 | $storeStmt = $db->prepare(" |
| 159 | SELECT s.typeNum FROM store_user su |
| 160 | JOIN stores s ON su.storeID = s.storeID |
| 161 | WHERE su.userID = :userId |
| 162 | "); |
| 163 | $storeStmt->execute(['userId' => $row['userID']]); |
| 164 | $stores = $storeStmt->fetchAll(\PDO::FETCH_COLUMN); |
| 165 | |
| 166 | $this->setAuthContext([ |
| 167 | 'method' => 'api_key', |
| 168 | 'user_id' => $row['userID'], |
| 169 | 'user' => [ |
| 170 | 'id' => (int)$row['userID'], |
| 171 | 'username' => $row['user_name'], |
| 172 | 'displayName' => $row['display_name'], |
| 173 | 'email' => $row['email'] |
| 174 | ], |
| 175 | 'stores' => $stores, |
| 176 | 'permissions' => [] // API keys have limited permissions |
| 177 | ]); |
| 178 | |
| 179 | } catch (\Exception $e) { |
| 180 | error_log("DualAuthMiddleware: API key validation failed - " . $e->getMessage()); |
| 181 | $this->unauthorized('API key validation failed'); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Check if a valid session exists |
| 187 | * |
| 188 | * @return bool True if valid session |
| 189 | */ |
| 190 | private function hasValidSession(): bool |
| 191 | { |
| 192 | // Check if session is started and has user |
| 193 | if (session_status() !== PHP_SESSION_ACTIVE) { |
| 194 | return false; |
| 195 | } |
| 196 | |
| 197 | return !empty($_SESSION['userfrosting']['user_id']); |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Handle session-based authentication |
| 202 | */ |
| 203 | private function handleSessionAuth(): void |
| 204 | { |
| 205 | $app = $this->app; |
| 206 | |
| 207 | // User is already authenticated via session |
| 208 | // The existing UserFrosting user loading will handle this |
| 209 | // Just mark the auth method for logging/audit purposes |
| 210 | if (isset($app->user) && !$app->user->isGuest()) { |
| 211 | $this->setAuthContext([ |
| 212 | 'method' => 'session', |
| 213 | 'user_id' => $app->user->id, |
| 214 | 'user' => [ |
| 215 | 'id' => (int)$app->user->id, |
| 216 | 'username' => $app->user->user_name, |
| 217 | 'displayName' => $app->user->display_name, |
| 218 | 'email' => $app->user->email |
| 219 | ], |
| 220 | 'stores' => $app->user->getStores(), |
| 221 | 'permissions' => [] // Session users get permissions via normal UserFrosting flow |
| 222 | ]); |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | /** |
| 227 | * Set authentication context for downstream use |
| 228 | * |
| 229 | * @param array $context Authentication context |
| 230 | */ |
| 231 | private function setAuthContext(array $context): void |
| 232 | { |
| 233 | $app = $this->app; |
| 234 | |
| 235 | // Store in app environment for access by controllers |
| 236 | $app->authContext = $context; |
| 237 | |
| 238 | // Also set as environment variable for compatibility |
| 239 | $app->environment['AUTH_METHOD'] = $context['method']; |
| 240 | $app->environment['AUTH_USER_ID'] = $context['user_id']; |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * Return unauthorized response |
| 245 | * |
| 246 | * @param string $message Error message |
| 247 | */ |
| 248 | private function unauthorized(string $message = 'Unauthorized'): void |
| 249 | { |
| 250 | $app = $this->app; |
| 251 | $response = $app->response; |
| 252 | |
| 253 | $response->status(401); |
| 254 | $response->headers->set('Content-Type', 'application/json'); |
| 255 | $response->headers->set('WWW-Authenticate', 'Bearer realm="BuyerKiosk API"'); |
| 256 | |
| 257 | $response->body(json_encode([ |
| 258 | 'error' => 'unauthorized', |
| 259 | 'message' => $message |
| 260 | ])); |
| 261 | |
| 262 | // Stop middleware chain |
| 263 | $app->stop(); |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * Check if a route is public (doesn't require auth) |
| 268 | * |
| 269 | * @param string $path Request path |
| 270 | * @return bool True if public |
| 271 | */ |
| 272 | private function isPublicRoute(string $path): bool |
| 273 | { |
| 274 | foreach ($this->publicRoutes as $route) { |
| 275 | if ($this->startsWith($path, $route)) { |
| 276 | return true; |
| 277 | } |
| 278 | } |
| 279 | return false; |
| 280 | } |
| 281 | |
| 282 | /** |
| 283 | * PHP 7 compatible string prefix check |
| 284 | * |
| 285 | * @param string $haystack String to check |
| 286 | * @param string $needle Prefix to look for |
| 287 | * @return bool True if haystack starts with needle |
| 288 | */ |
| 289 | private function startsWith(string $haystack, string $needle): bool |
| 290 | { |
| 291 | return strncmp($haystack, $needle, strlen($needle)) === 0; |
| 292 | } |
| 293 | |
| 294 | /** |
| 295 | * Get or create TokenService instance |
| 296 | * |
| 297 | * @return TokenService |
| 298 | */ |
| 299 | private function getTokenService(): TokenService |
| 300 | { |
| 301 | if ($this->tokenService === null) { |
| 302 | $db = dbConnectByName('kiosk_users'); |
| 303 | $this->tokenService = new TokenService($db); |
| 304 | } |
| 305 | return $this->tokenService; |
| 306 | } |
| 307 | |
| 308 | /** |
| 309 | * Add a route to the public routes list |
| 310 | * |
| 311 | * @param string $route Route pattern |
| 312 | */ |
| 313 | public function addPublicRoute(string $route): void |
| 314 | { |
| 315 | $this->publicRoutes[] = $route; |
| 316 | } |
| 317 | } |