| 1 | <?php |
| 2 | |
| 3 | const BAD_REQUEST = 400; |
| 4 |
| 1 | <?php |
| 2 | |
| 3 | require_once __DIR__ . "/INTERNAL_SERVER_ERROR.php"; |
| 4 | require_once __DIR__ . "/devuelveProblemDetails.php"; |
| 5 | require_once __DIR__ . "/devuelveProblemDetails.php"; |
| 6 | |
| 7 | function devuelveErrorInterno(Throwable $error) |
| 8 | { |
| 9 | devuelveProblemDetails(new ProblemDetails( |
| 10 | status: INTERNAL_SERVER_ERROR, |
| 11 | title: $error->getMessage(), |
| 12 | type: "/error/errorinterno.html" |
| 13 | )); |
| 14 | } |
| 15 |
| 1 | <?php |
| 2 | |
| 3 | require_once __DIR__ . "/devuelveResultadoNoJson.php"; |
| 4 | |
| 5 | function devuelveJson($resultado) |
| 6 | { |
| 7 | |
| 8 | $json = json_encode($resultado); |
| 9 | |
| 10 | if ($json === false) { |
| 11 | |
| 12 | devuelveResultadoNoJson(); |
| 13 | } else { |
| 14 | |
| 15 | http_response_code(200); |
| 16 | header("Content-Type: application/json"); |
| 17 | echo $json; |
| 18 | } |
| 19 | } |
| 20 |
| 1 | <?php |
| 2 | |
| 3 | require_once __DIR__ . "/devuelveResultadoNoJson.php"; |
| 4 | require_once __DIR__ . "/ProblemDetails.php"; |
| 5 | |
| 6 | function devuelveProblemDetails(ProblemDetails $details) |
| 7 | { |
| 8 | |
| 9 | $body = ["title" => $details->title]; |
| 10 | if ($details->type !== null) { |
| 11 | $body["type"] = $details->type; |
| 12 | } |
| 13 | if ($details->detail !== null) { |
| 14 | $body["detail"] = $details->detail; |
| 15 | } |
| 16 | |
| 17 | $json = json_encode($body); |
| 18 | |
| 19 | if ($json === false) { |
| 20 | |
| 21 | devuelveResultadoNoJson(); |
| 22 | } else { |
| 23 | |
| 24 | http_response_code($details->status); |
| 25 | header("Content-Type: application/problem+json"); |
| 26 | echo $json; |
| 27 | } |
| 28 | } |
| 29 |
| 1 | <?php |
| 2 | |
| 3 | require_once __DIR__ . "/INTERNAL_SERVER_ERROR.php"; |
| 4 | |
| 5 | function devuelveResultadoNoJson() |
| 6 | { |
| 7 | |
| 8 | http_response_code(INTERNAL_SERVER_ERROR); |
| 9 | header("Content-Type: application/problem+json"); |
| 10 | echo '{' . |
| 11 | '"title": "El resultado no puede representarse como JSON."' . |
| 12 | '"type": "/error/resultadonojson.html"' . |
| 13 | '}'; |
| 14 | } |
| 15 |
| 1 | <?php |
| 2 | |
| 3 | const INTERNAL_SERVER_ERROR = 500; |
| 1 | <?php |
| 2 | |
| 3 | /** Detalle de los errores devueltos por un servicio. */ |
| 4 | class ProblemDetails extends Exception |
| 5 | { |
| 6 | |
| 7 | public int $status; |
| 8 | public string $title; |
| 9 | public ?string $type; |
| 10 | public ?string $detail; |
| 11 | |
| 12 | public function __construct( |
| 13 | int $status, |
| 14 | string $title, |
| 15 | ?string $type = null, |
| 16 | ?string $detail = null, |
| 17 | Throwable $previous = null |
| 18 | ) { |
| 19 | parent::__construct($title, $status, $previous); |
| 20 | $this->status = $status; |
| 21 | $this->type = $type; |
| 22 | $this->title = $title; |
| 23 | $this->detail = $detail; |
| 24 | } |
| 25 | } |
| 26 |
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Recupera el texto de un parámetro enviado al |
| 5 | * servidor por medio de GET, POST o cookie. |
| 6 | * |
| 7 | * Si el parámetro no se recibe, devuelve false. |
| 8 | */ |
| 9 | function recuperaTexto(string $parametro): false|string |
| 10 | { |
| 11 | /* Si el parámetro está asignado en $_REQUEST, |
| 12 | * devuelve su valor; de lo contrario, devuelve false. |
| 13 | */ |
| 14 | $valor = isset($_REQUEST[$parametro]) |
| 15 | ? $_REQUEST[$parametro] |
| 16 | : false; |
| 17 | return $valor; |
| 18 | } |
| 19 |