| 1 | <?php |
| 2 | |
| 3 | require_once __DIR__ . "/JsonResponse.php"; |
| 4 | require_once __DIR__ . "/ProblemDetails.php"; |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | function ejecutaServicio($servicio) |
| 10 | { |
| 11 | try { |
| 12 | $resultado = $servicio(); |
| 13 | if (!($resultado instanceof JsonResponse)) { |
| 14 | $resultado = JsonResponse::ok($resultado); |
| 15 | } |
| 16 | procesa_json_response($resultado); |
| 17 | } catch (ProblemDetails $details) { |
| 18 | procesa_problem_details($details); |
| 19 | } catch (Throwable $throwable) { |
| 20 | procesa_problem_details(new ProblemDetails( |
| 21 | status: ProblemDetails::InternalServerError, |
| 22 | type: "/error/errorinterno.html", |
| 23 | title: "Error interno del servidor.", |
| 24 | detail: $throwable->getMessage() |
| 25 | )); |
| 26 | } |
| 27 | } |
| 28 | |
| 29 | function procesa_json_response(JsonResponse $response) |
| 30 | { |
| 31 | $json = ""; |
| 32 | $body = $response->body; |
| 33 | if ($response->status !== JsonResponse_NoContent) { |
| 34 | $json = json_encode($body); |
| 35 | if ($json === false) { |
| 36 | no_puede_generar_json(); |
| 37 | return; |
| 38 | } |
| 39 | } |
| 40 | http_response_code($response->status); |
| 41 | if ($response->location !== null) { |
| 42 | header("Location: {$response->location}"); |
| 43 | } |
| 44 | if ($response->status !== JsonResponse_NoContent) { |
| 45 | header("Content-Type: application/json"); |
| 46 | echo $json; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | function procesa_problem_details(ProblemDetails $details) |
| 51 | { |
| 52 | $body = ["title" => $details->title]; |
| 53 | if ($details->type !== null) { |
| 54 | $body["type"] = $details->type; |
| 55 | } |
| 56 | if ($details->detail !== null) { |
| 57 | $body["detail"] = $details->detail; |
| 58 | } |
| 59 | $json = json_encode($body); |
| 60 | if ($json === false) { |
| 61 | no_puede_generar_json(); |
| 62 | } else { |
| 63 | http_response_code($details->status); |
| 64 | header("Content-Type: application/problem+json"); |
| 65 | echo $json; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | function no_puede_generar_json() |
| 70 | { |
| 71 | http_response_code(ProblemDetails::InternalServerError); |
| 72 | header("Content-Type: application/problem+json"); |
| 73 | echo '{"type":"/error/nojson.html"' |
| 74 | . ',"title":"El valor devuelto no puede representarse como JSON."}'; |
| 75 | } |
| 76 | |