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| 1 | <?php |
| 2 | /** @noinspection PhpUnhandledExceptionInspection */ |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | // TODO unit test |
| 6 | |
| 7 | use Slim\Exception\HttpException; |
| 8 | use Slim\Http\ServerRequest as Request; |
| 9 | use Slim\Http\Response; |
| 10 | |
| 11 | class ErrorHandler { |
| 12 | static function logException(Throwable $throwable, bool $logTrace = false): string { |
| 13 | $errorUniqueId = uniqid('error-', true); |
| 14 | $code = ErrorHandler::getHTTPSaveExceptionCode($throwable); |
| 15 | |
| 16 | $logHeadline = [ErrorHandler::getAnonIp(), $errorUniqueId]; |
| 17 | |
| 18 | if (method_exists($throwable, 'getTitle') and $throwable->getTitle()) { |
| 19 | $logHeadline[] = "({$throwable->getTitle()})"; |
| 20 | } else { |
| 21 | $logHeadline[] = "($code)"; |
| 22 | } |
| 23 | |
| 24 | $logHeadline[] = "`{$throwable->getMessage()}`"; |
| 25 | |
| 26 | if (is_a($throwable, "Slim\Exception\HttpException")) { |
| 27 | $request = $throwable->getRequest(); |
| 28 | $serverParams = $request->getServerParams(); |
| 29 | $logHeadline[] = "on `[{$serverParams['REQUEST_METHOD']}] {$serverParams['REQUEST_URI']}`"; |
| 30 | } else { |
| 31 | $logHeadline[] = "on `[{$_SERVER['REQUEST_METHOD']}]` {$_SERVER['REQUEST_URI']}`"; |
| 32 | } |
| 33 | |
| 34 | if ($testMode = TestEnvironment::$testMode) { |
| 35 | $logHeadline[] = "(testMode = $testMode)"; |
| 36 | } |
| 37 | |
| 38 | if ($logTrace) { |
| 39 | $logHeadline[] = "at {$throwable->getFile()}:{$throwable->getLine()}"; |
| 40 | } |
| 41 | |
| 42 | error_log(implode(' ', $logHeadline)); |
| 43 | |
| 44 | return $errorUniqueId; |
| 45 | } |
| 46 | |
| 47 | private static function getAnonIp(): string { |
| 48 | if (isset($_SERVER['REMOTE_ADDR'])) { |
| 49 | $ip = explode(".", $_SERVER['REMOTE_ADDR']); |
| 50 | return "user-" . md5($ip[0] . ($ip[1] ?? '') . ($ip[2] ?? '') . ($_SERVER['HTTP_USER_AGENT'] ?? '')); |
| 51 | } |
| 52 | |
| 53 | return 'pid-' . getmypid(); |
| 54 | } |
| 55 | |
| 56 | static function getHTTPSaveExceptionCode(Throwable $throwable): int { |
| 57 | if (is_a($throwable, "Slim\Exception\HttpException") or is_a($throwable, 'HttpError')) { |
| 58 | return $throwable->getCode(); |
| 59 | } |
| 60 | |
| 61 | return 500; |
| 62 | } |
| 63 | |
| 64 | public function __invoke(Request $request, Throwable $throwable): Response { |
| 65 | global $app; |
| 66 | |
| 67 | $code = ErrorHandler::getHTTPSaveExceptionCode($throwable); |
| 68 | $errorUniqueId = ErrorHandler::logException($throwable, $code >= 500); |
| 69 | |
| 70 | if (!is_a($throwable, "Slim\Exception\HttpException")) { |
| 71 | $newThrowable = new HttpException($request, $throwable->getMessage(), $code, $throwable); |
| 72 | if (method_exists($throwable, 'getTitle')) { |
| 73 | $newThrowable->setTitle($throwable->getTitle()); |
| 74 | } |
| 75 | $throwable = $newThrowable; |
| 76 | } |
| 77 | |
| 78 | $response = $app |
| 79 | ->getResponseFactory() |
| 80 | ->createResponse() |
| 81 | ->withStatus($throwable->getCode(), $throwable->getTitle()) |
| 82 | ->withHeader('Content-Type', 'text/html') |
| 83 | ->withHeader('Error-ID', $errorUniqueId) |
| 84 | ->write(htmlspecialchars($throwable->getMessage() ?: $throwable->getDescription())); |
| 85 | |
| 86 | if (TestEnvironment::$testMode) { |
| 87 | return $response |
| 88 | ->withHeader('Test-Mode', TestEnvironment::$testMode); |
| 89 | } |
| 90 | |
| 91 | return $response |
| 92 | ->withHeader('Test-Mode', 'NO'); |
| 93 | } |
| 94 | |
| 95 | public static function fatal(): void { |
| 96 | |
| 97 | } |
| 98 | } |