1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>Notificaciones Push</title>
10
11	<script type="module" src="js/lib/manejaErrores.js"></script>
12
13	</head>
14
15	<body>
16
17	<h1>Notificaciones Push</h1>
18
19	<menu style="display: flex; list-style: none; flex-wrap: wrap; gap: 0.5rem;">
20	<li>
21	<button id="btnSuscribe" type="button" hidden>
22	Suscríbete
23	</button>
24	</li>
25	<li>
26	<button id="btnCancela" type="button" hidden>
27	Cancela suscripción
28	</button>
29	</li>
30	<li>
31	<button id="btnNotifica" type="button" hidden>
32	Notifica
33	</button>
34	</li>
35	<li>
36	<a href="srv/genera-llaves.php" target="_blank">Genera llaves</a>
37	</li>
38	</menu>
39
40	<p>
41	<output id="outEstado">
42	<progress max="100">Cargando…</progress>
43	</output>
44	</p>
45
46	<fieldset>
47	<legend>Reporte de envío a endpoints</legend>
48
49	<dl id="reporte"></dl>
50
51	</fieldset>
52
53	<script type="module">
54
55	import {
56	activaNotificacionesPush
57	} from "./js/lib/activaNotificacionesPush.js"
58	import { getSuscripcionPush } from "./js/lib/getSuscripcionPush.js"
59	import { suscribeAPush } from "./js/lib/suscribeAPush.js"
60	import { cancelaSuscripcionPush } from "./js/lib/cancelaSuscripcionPush.js"
61	import { urlBase64ToUint8Array } from "./js/lib/urlBase64ToUint8Array.js"
62	import {
63	calculaDtoParaSuscripcion
64	} from "./js/lib/calculaDtoParaSuscripcion.js"
65	import { consume } from "./js/lib/consume.js"
66	import { enviaJsonRecibeJson } from "./js/lib/enviaJsonRecibeJson.js"
67	import { descargaVista } from "./js/lib/descargaVista.js"
68	import { muestraError } from "./js/lib/muestraError.js"
69
70	const applicationServerKey = urlBase64ToUint8Array(
71	"BMBlr6YznhYMX3NgcWIDRxZXs0sh7tCv7_YCsWcww0ZCv9WGg-tRCXfMEHTiBPCksSqeve1twlbmVAZFv7GSuj0")
72	/** @enum {string} */
73	const Estado = {
74	CALCULANDO: "Calculando…",
75	SUSCRITO: "Suscrito",
76	DESUSCRITO: "Sin suscripción",
77	INCOMPATIBLE: "Incompatible"
78	}
79
80	preparaVista()
81	btnSuscribe.addEventListener("click", suscribe)
82	btnCancela.addEventListener("click", cancela)
83	btnNotifica.addEventListener("click", notificaDesdeElServidor)
84
85	async function preparaVista() {
86	try {
87	await activaNotificacionesPush("sw.js")
88	const suscripcion = await getSuscripcionPush()
89	if (suscripcion === null) {
90	muestraEstado(Estado.DESUSCRITO)
91	} else {
92	// Modifica la suscripción en el servidor,
93	const dto = calculaDtoParaSuscripcion(suscripcion)
94	await consume(enviaJsonRecibeJson("php/suscripcion-modifica.php", dto))
95	muestraEstado(Estado.SUSCRITO)
96	}
97	} catch (error) {
98	muestraEstado(Estado.INCOMPATIBLE)
99	muestraError(error)
100	}
101	}
102
103	async function notificaDesdeElServidor() {
104	reporte.innerHTML =
105	/* html */ `<progress max="100">Cargando…</progress>`
106	await descargaVista("php/notifica.php", "POST")
107	}
108
109	async function suscribe() {
110	muestraEstado(Estado.CALCULANDO)
111	const suscripcion = await suscribeAPush(applicationServerKey)
112	// Agrega la suscripción al servidor,
113	const dto = calculaDtoParaSuscripcion(suscripcion)
114	await consume(enviaJsonRecibeJson("php/suscripcion-modifica.php", dto)
115	)
116	muestraEstado(Estado.SUSCRITO)
117	}
118
119	async function cancela() {
120	muestraEstado(Estado.CALCULANDO)
121	const suscripcion = await cancelaSuscripcionPush()
122	if (suscripcion !== null) {
123	// Elimina la suscripción en el servidor,
124	const dto = calculaDtoParaSuscripcion(suscripcion)
125	await consume(enviaJsonRecibeJson("php/suscripcion-elimina.php", dto))
126	muestraEstado(Estado.DESUSCRITO)
127	}
128	}
129
130	/**
131	* @param {Estado} estado
132	*/
133	function muestraEstado(estado) {
134	outEstado.value = estado
135	if (estado === Estado.INCOMPATIBLE \|\| estado === Estado.CALCULANDO) {
136	btnSuscribe.hidden = true
137	btnCancela.hidden = true
138	btnNotifica.hidden = true
139	} else if (estado === Estado.SUSCRITO) {
140	btnSuscribe.hidden = true
141	btnCancela.hidden = false
142	btnNotifica.hidden = false
143	} else if (estado === Estado.DESUSCRITO) {
144	btnSuscribe.hidden = false
145	btnCancela.hidden = true
146	btnNotifica.hidden = true
147	}
148	}
149
150	</script>
151
152	</body>
153
154	</html>

1	const URL_SERVIDOR = "https://notipush.rf.gd"
2
3	if (self instanceof ServiceWorkerGlobalScope) {
4
5	// El siguiente código se activa cuando llega una notificación push.
6	self.addEventListener("push", (/** @type {PushEvent} */ event) => {
7	const notificacion = event.data
8	/* Si el navegador tiene permitido mostrar notificaciones push,
9	* nuestra la que se ha recibido. */
10	if (notificacion !== null && self.Notification.permission === 'granted') {
11	event.waitUntil(muestraNotificacion(notificacion))
12	}
13	})
14
15	self.addEventListener("notificationclick",
16	(/** @type {NotificationEvent} */ event) => {
17	event.notification.close()
18	event.waitUntil(muestraVentana())
19	})
20	}
21
22	/**
23	* @param {PushMessageData} notificacion
24	*/
25	async function muestraNotificacion(notificacion) {
26	if (self instanceof ServiceWorkerGlobalScope) {
27	const mensaje = notificacion.text()
28	await self.registration.showNotification(mensaje)
29	}
30	}
31
32	async function muestraVentana() {
33	if (self instanceof ServiceWorkerGlobalScope) {
34	const clientes = await self.clients.matchAll({ type: "window" })
35	for (const cliente of clientes) {
36	if (cliente.url.startsWith(URL_SERVIDOR)) {
37	return cliente.focus()
38	}
39	}
40	return self.clients.openWindow("/")
41	}
42	}

9. Carpeta « php »

A. php / Bd.php

<?php

class Bd
{

 private static ?PDO $pdo = null;

 static function pdo(): PDO
 {
  if (self::$pdo === null) {

   self::$pdo = new PDO(
    // cadena de conexión
    "sqlite:" . __DIR__ . "/notipush.db",
    // usuario
    null,
    // contraseña
    null,
    // Opciones: pdos no persistentes y lanza excepciones.
    [PDO::ATTR_PERSISTENT => false, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
   );

   self::$pdo->exec(
    'CREATE TABLE IF NOT EXISTS SUSCRIPCION (
       SUS_ENDPOINT TEXT NOT NULL,
       SUS_PUB_KEY TEXT NOT NULL,
       SUS_AUT_TOK TEXT NOT NULL,
       SUS_CONT_ENCOD TEXT NOT NULL,
      CONSTRAINT SUS_PK
       PRIMARY KEY(SUS_ENDPOINT),
      CONSTRAINT SUS_ENDPNT_NV
       CHECK(LENGTH(SUS_ENDPOINT) > 0)
     )'
   );
  }

  return self::$pdo;
 }
}


B. php / genera-llaves.php

<!DOCTYPE html>
<html lang="es">

<head>

 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width">

 <title>Llaves VAPID</title>

</head>

<body>

 <h1>Llaves VAPID</h1>

 <pre>
 <?php

 require __DIR__ . "/../vendor/autoload.php";

 use Minishlink\WebPush\VAPID;

 var_dump(VAPID::createVapidKeys());

 ?>
 </pre>

</body>

</html>

1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>Llaves VAPID</title>
10
11	</head>
12
13	<body>
14
15	<h1>Llaves VAPID</h1>
16
17	<pre>
18	<?php
19
20	require __DIR__ . "/../vendor/autoload.php";
21
22	use Minishlink\WebPush\VAPID;
23
24	var_dump(VAPID::createVapidKeys());
25
26	?>
27	</pre>
28
29	</body>
30
31	</html>

C. php / notifica.php

<?php

require_once __DIR__ . "/lib/manejaErrores.php";
require_once __DIR__ . "/../vendor/autoload.php";
require_once  __DIR__ . "/lib/devuelveJson.php";
require_once  __DIR__ . "/Bd.php";
require_once __DIR__ . "/Suscripcion.php";
require_once __DIR__ . "/suscripcionElimina.php";

use Minishlink\WebPush\WebPush;

const AUTH = [
 "VAPID" => [
  "subject" => "https://notipush.rf.gd/",
  "publicKey" => "BMBlr6YznhYMX3NgcWIDRxZXs0sh7tCv7_YCsWcww0ZCv9WGg-tRCXfMEHTiBPCksSqeve1twlbmVAZFv7GSuj0",
  "privateKey" => "vplfkITvu0cwHqzK9Kj-DYStbCH_9AhGx9LqMyaeI6w"
 ]
];

$webPush = new WebPush(AUTH);
$mensaje = "Hola! 👋";

// Envia el mensaje a todas las suscripciones.

$bd = Bd::pdo();
$stmt = $bd->query("SELECT * FROM SUSCRIPCION");
$suscripciones =
 $stmt->fetchAll(PDO::FETCH_CLASS | PDO::FETCH_PROPS_LATE, Suscripcion::class);

foreach ($suscripciones as $suscripcion) {
 $webPush->queueNotification($suscripcion, $mensaje);
}
$reportes = $webPush->flush();

// Genera el reporte de envio a cada suscripcion.
$reporteDeEnvios = "";
foreach ($reportes as $reporte) {
 $endpoint = $reporte->getRequest()->getUri();
 $htmlEndpoint = htmlentities($endpoint);
 if ($reporte->isSuccess()) {
  // Reporte de éxito.
  $reporteDeEnvios .= "<dt>$htmlEndpoint</dt><dd>Éxito</dd>";
 } else {
  if ($reporte->isSubscriptionExpired()) {
   suscripcionElimina($bd, $endpoint);
  }
  // Reporte de fallo.
  $explicacion = htmlentities($reporte->getReason());
  $reporteDeEnvios .= "<dt>$endpoint</dt><dd>Fallo: $explicacion</dd>";
 }
}

devuelveJson(["reporte" => ["innerHTML" => $reporteDeEnvios]]);


D. php / recibeSuscripcion.php

<?php

require_once __DIR__ . "/lib/BAD_REQUEST.php";
require_once __DIR__ . "/lib/recibeJson.php";
require_once __DIR__ . "/lib/ProblemDetailsException.php";

function recibeSuscripcion()
{

 $objeto = recibeJson();

 if (
  !isset($objeto->authToken)
  || !is_string($objeto->authToken)
  || $objeto->authToken === ""
 )
  throw new ProblemDetailsException([
   "status" => BAD_REQUEST,
   "title" => "El authToken debe ser texto que no esté en blanco.",
   "type" => "/errors/authtokenincorrecto.html",
  ]);

 if (
  !isset($objeto->contentEncoding)
  || !is_string($objeto->contentEncoding)
  || $objeto->contentEncoding === ""
 )
  throw new ProblemDetailsException([
   "status" => BAD_REQUEST,
   "title" => "La contentEncoding debe ser texto que no esté en blanco.",
   "type" => "/errors/contentencodingincorrecta.html",
  ]);

 if (
  !isset($objeto->endpoint)
  || !is_string($objeto->endpoint)
  || $objeto->endpoint === ""
 )
  throw new ProblemDetailsException([
   "status" => BAD_REQUEST,
   "title" => "El endpoint debe ser texto que no esté en blanco.",
   "type" => "/errors/endpointincorrecto.html",
  ]);

 if (
  !isset($objeto->publicKey)
  || !is_string($objeto->publicKey)
  || $objeto->publicKey === ""
 )
  throw new ProblemDetailsException([
   "status" => BAD_REQUEST,
   "title" => "La publicKey debe ser texto que no esté en blanco.",
   "type" => "/errors/publickeyincorrecta.html",
  ]);

 return [
  "SUS_AUT_TOK" => $objeto->authToken,
  "SUS_CONT_ENCOD" => $objeto->contentEncoding,
  "SUS_ENDPOINT" => $objeto->endpoint,
  "SUS_PUB_KEY" => $objeto->publicKey,
 ];
}


E. php / suscripcion-elimina.php

<?php

require_once __DIR__ . "/lib/manejaErrores.php";
require_once __DIR__ . "/lib/devuelveNoContent.php";
require_once  __DIR__ . "/Bd.php";
require_once  __DIR__ . "/recibeSuscripcion.php";
require_once  __DIR__ . "/suscripcionElimina.php";

$modelo = recibeSuscripcion();
suscripcionElimina(Bd::pdo(), $modelo["SUS_ENDPOINT"]);
devuelveNoContent();


F. php / suscripcion-modifica.php

<?php

require_once __DIR__ . "/lib/manejaErrores.php";
require_once __DIR__ . "/lib/devuelveCreated.php";
require_once __DIR__ . "/lib/devuelveJson.php";
require_once  __DIR__ . "/Bd.php";
require_once  __DIR__ . "/recibeSuscripcion.php";

$modelo = recibeSuscripcion();

$bd = Bd::pdo();

$stmt =
 $bd->prepare("SELECT * FROM SUSCRIPCION WHERE SUS_ENDPOINT = :SUS_ENDPOINT");
$stmt->execute([":SUS_ENDPOINT" => $modelo["SUS_ENDPOINT"]]);
$anterior = $stmt->fetch(PDO::FETCH_ASSOC);

if ($anterior === false) {

 $stmt = $bd->prepare(
  "INSERT INTO SUSCRIPCION (
    SUS_ENDPOINT, SUS_PUB_KEY, SUS_AUT_TOK, SUS_CONT_ENCOD
   ) values (
    :SUS_ENDPOINT, :SUS_PUB_KEY, :SUS_AUT_TOK, :SUS_CONT_ENCOD
   )"
 );
 $stmt->execute([
  ":SUS_ENDPOINT" => $modelo["SUS_ENDPOINT"],
  ":SUS_PUB_KEY" => $modelo["SUS_PUB_KEY"],
  ":SUS_AUT_TOK" => $modelo["SUS_AUT_TOK"],
  ":SUS_CONT_ENCOD" => $modelo["SUS_CONT_ENCOD"],
 ]);

 devuelveCreated("", $modelo);
} else {

 $stmt = $bd->prepare(
  "UPDATE SUSCRIPCION
   SET
    SUS_PUB_KEY = :SUS_PUB_KEY,
    SUS_AUT_TOK = :SUS_AUT_TOK,
    SUS_CONT_ENCOD = :SUS_CONT_ENCOD
   WHERE
    SUS_ENDPOINT = :SUS_ENDPOINT"
 );
 $stmt->execute([
  ":SUS_PUB_KEY" => $modelo["SUS_PUB_KEY"],
  ":SUS_AUT_TOK" => $modelo["SUS_AUT_TOK"],
  ":SUS_CONT_ENCOD" => $modelo["SUS_CONT_ENCOD"],
  ":SUS_ENDPOINT" => $modelo["SUS_ENDPOINT"],
 ]);

 devuelveJson($modelo);
}


G. php / Suscripcion.php

<?php

require_once __DIR__ . "/../vendor/autoload.php";

use Minishlink\WebPush\SubscriptionInterface;

class Suscripcion implements SubscriptionInterface
{

 public string $SUS_ENDPOINT;
 public string $SUS_PUB_KEY;
 public string $SUS_AUT_TOK;
 public string $SUS_CONT_ENCOD;

 public function __construct(
  string $SUS_ENDPOINT = "",
  string $SUS_PUB_KEY = "",
  string $SUS_AUT_TOK = "",
  string $SUS_CONT_ENCOD = ""
 ) {
  $this->SUS_ENDPOINT = $SUS_ENDPOINT;
  $this->SUS_PUB_KEY = $SUS_PUB_KEY;
  $this->SUS_AUT_TOK = $SUS_AUT_TOK;
  $this->SUS_CONT_ENCOD = $SUS_CONT_ENCOD;
 }

 public function getEndpoint(): string
 {
  return $this->SUS_ENDPOINT;
 }

 public function getPublicKey(): ?string
 {
  return $this->SUS_PUB_KEY;
 }

 public function getAuthToken(): ?string
 {
  return $this->SUS_AUT_TOK;
 }

 public function getContentEncoding(): ?string
 {
  return $this->SUS_CONT_ENCOD;
 }
}


H. php / suscripcionElimina.php

<?php

function suscripcionElimina(\PDO $bd, string $endpoint)
{
 $stmt =
  $bd->prepare("DELETE FROM SUSCRIPCION WHERE SUS_ENDPOINT = :SUS_ENDPOINT");
 $stmt->execute([":SUS_ENDPOINT" => $endpoint]);
}


I. Carpeta « php / lib »

Versión para imprimir.

1. php / lib / BAD_REQUEST.php


1	<?php
2
3	const BAD_REQUEST = 400;
4

2. php / lib / devuelveCreated.php

<?php

require_once __DIR__ . "/devuelveResultadoNoJson.php";

function devuelveCreated($urlDelNuevo, $resultado)
{
 $json = json_encode($resultado);
 if ($json === false) {
  devuelveResultadoNoJson();
 } else {
  http_response_code(201);
  header("Location: $urlDelNuevo");
  header("Content-Type: application/json; charset=utf-8");
  echo $json;
 }
}


3. php / lib / devuelveJson.php

<?php

require_once __DIR__ . "/devuelveResultadoNoJson.php";

function devuelveJson($resultado)
{
 $json = json_encode($resultado);
 if ($json === false) {
  devuelveResultadoNoJson();
 } else {
  header("Content-Type: application/json; charset=utf-8");
  echo $json;
 }
 exit();
}


4. php / lib / devuelveNoContent.php

<?php

function devuelveNoContent()
{
 http_response_code(204);
}


5. php / lib / devuelveResultadoNoJson.php

<?php

require_once __DIR__ . "/INTERNAL_SERVER_ERROR.php";

function devuelveResultadoNoJson()
{
 http_response_code(INTERNAL_SERVER_ERROR);
 header("Content-Type: application/problem+json; charset=utf-8");

 echo '{' .
  "status: " . INTERNAL_SERVER_ERROR .
  '"title": "El resultado no puede representarse como JSON."' .
  '"type": "/errors/resultadonojson.html"' .
  '}';
}


6. php / lib / INTERNAL_SERVER_ERROR.php


1	<?php
2
3	const INTERNAL_SERVER_ERROR = 500;

7. php / lib / manejaErrores.php

<?php

require_once __DIR__ . "/INTERNAL_SERVER_ERROR.php";
require_once __DIR__ . "/ProblemDetailsException.php";

// Hace que se lance una excepción automáticamente cuando se genere un error.
set_error_handler(function ($severity, $message, $file, $line) {
 throw new ErrorException($message, 0, $severity, $file, $line);
});

// Código cuando una excepción no es atrapada.
set_exception_handler(function (Throwable $excepcion) {
 if ($excepcion instanceof ProblemDetailsException) {
  devuelveProblemDetails($excepcion->problemDetails);
 } else {
  devuelveProblemDetails([
   "status" => INTERNAL_SERVER_ERROR,
   "title" => "Error interno del servidor",
   "detail" => $excepcion->getMessage(),
   "type" => "/errors/errorinterno.html",
  ]);
 }
 exit();
});

function devuelveProblemDetails(array $array)
{
 $json = json_encode($array);
 if ($json === false) {
  devuelveResultadoNoJson();
 } else {
  http_response_code(isset($array["status"]) ? $array["status"] : 500);
  header("Content-Type: application/problem+json; charset=utf-8");
  echo $json;
 }
}


8. php / lib / ProblemDetailsException.php

<?php

require_once __DIR__ . "/INTERNAL_SERVER_ERROR.php";

/**
 * Detalle de los errores devueltos por un servicio.
 */
class ProblemDetailsException extends Exception
{

 public array $problemDetails;

 public function __construct(
  array $problemDetails,
 ) {
  
  parent::__construct(
   isset($problemDetails["detail"])
    ? $problemDetails["detail"]
    : (isset($problemDetails["title"])
     ? $problemDetails["title"]
     : "Error"),
   $problemDetails["status"]
    ? $problemDetails["status"]
    : INTERNAL_SERVER_ERROR
  );

  $this->problemDetails = $problemDetails;
 }
}


9. php / lib / recibeJson.php

<?php

require_once __DIR__ . "/BAD_REQUEST.php";

function recibeJson()
{
 $json = json_decode(file_get_contents("php://input"));

 if ($json === null) {

  http_response_code(BAD_REQUEST);
  header("Content-Type: application/problem+json; charset=utf-8");

  echo '{' .
   "status: " . BAD_REQUEST .
   '"title": "Los datos recibidos no están en formato JSON."' .
   '"type": "/errors/datosnojson.html"' .
   '}';

  exit();
 }

 return $json;
}


10. Carpeta « js »

Versión para imprimir.

A. Carpeta « js / lib »

Versión para imprimir.

1. js / lib / activaNotificacionesPush.js

/**
 * @param { string | URL } urlDeServiceWorkerQueRecibeNotificaciones
 */
export async function activaNotificacionesPush(

 urlDeServiceWorkerQueRecibeNotificaciones) {

 // Valida que el navegador soporte notificaciones push.
 if (!('PushManager' in window))
  throw new Error("Este navegador no soporta notificaciones push.")

 // Valida que el navegador soporte notificaciones,
 if (!("Notification" in window))
  throw new Error("Este navegador no soporta notificaciones push.")

 // Valida que el navegador soporte service workers,
 if (!("serviceWorker" in navigator))
  throw new Error("Este navegador no soporta service workers.")

 // Recupera el permiso para usar notificaciones
 let permiso = Notification.permission
 if (permiso === "default") {
  // Permiso no asignado. Pide al usuario su autorización.
  permiso = await Notification.requestPermission()
 }

 // Valida que el usuario haya permitido usar notificaciones..
 if (permiso === "denied")
  throw new Error("Notificaciones bloqueadas.")

 const registro = await navigator.serviceWorker.register(
  urlDeServiceWorkerQueRecibeNotificaciones)
 console.log(urlDeServiceWorkerQueRecibeNotificaciones, "registrado.")
 console.log(registro)

 if (!("showNotification" in registro))
  throw new Error("Este navegador no soporta notificaciones.")
}

1	/**
2	* @param { string \| URL } urlDeServiceWorkerQueRecibeNotificaciones
3	*/
4	export async function activaNotificacionesPush(
5
6	urlDeServiceWorkerQueRecibeNotificaciones) {
7
8	// Valida que el navegador soporte notificaciones push.
9	if (!('PushManager' in window))
10	throw new Error("Este navegador no soporta notificaciones push.")
11
12	// Valida que el navegador soporte notificaciones,
13	if (!("Notification" in window))
14	throw new Error("Este navegador no soporta notificaciones push.")
15
16	// Valida que el navegador soporte service workers,
17	if (!("serviceWorker" in navigator))
18	throw new Error("Este navegador no soporta service workers.")
19
20	// Recupera el permiso para usar notificaciones
21	let permiso = Notification.permission
22	if (permiso === "default") {
23	// Permiso no asignado. Pide al usuario su autorización.
24	permiso = await Notification.requestPermission()
25	}
26
27	// Valida que el usuario haya permitido usar notificaciones..
28	if (permiso === "denied")
29	throw new Error("Notificaciones bloqueadas.")
30
31	const registro = await navigator.serviceWorker.register(
32	urlDeServiceWorkerQueRecibeNotificaciones)
33	console.log(urlDeServiceWorkerQueRecibeNotificaciones, "registrado.")
34	console.log(registro)
35
36	if (!("showNotification" in registro))
37	throw new Error("Este navegador no soporta notificaciones.")
38	}

2. js / lib / calculaDtoParaSuscripcion.js

/**
 * Devuelve una literal de objeto que se puede usar para enviar
 * en formato JSON al servidor.
 * DTO es un acrónimo para Data Transder Object, u
 * objeto para transferencia de datos.
 * @param { PushSubscription } suscripcion
 */
export function calculaDtoParaSuscripcion(suscripcion) {
 const key = suscripcion.getKey("p256dh")
 const token = suscripcion.getKey("auth")
 const supported = PushManager.supportedContentEncodings
 const encodings = Array.isArray(supported) && supported.length > 0
  ? supported
  : ["aesgcm"]
 const endpoint = suscripcion.endpoint
 const publicKey = key === null
  ? null
  : btoa(String.fromCharCode.apply(null, new Uint8Array(key)))
 const authToken = token === null
  ? null
  : btoa(String.fromCharCode.apply(null, new Uint8Array(token)))
 const contentEncoding = encodings[0]
 return {
  endpoint,
  publicKey,
  authToken,
  contentEncoding
 }
}


1	/**
2	* Devuelve una literal de objeto que se puede usar para enviar
3	* en formato JSON al servidor.
4	* DTO es un acrónimo para Data Transder Object, u
5	* objeto para transferencia de datos.
6	* @param { PushSubscription } suscripcion
7	*/
8	export function calculaDtoParaSuscripcion(suscripcion) {
9	const key = suscripcion.getKey("p256dh")
10	const token = suscripcion.getKey("auth")
11	const supported = PushManager.supportedContentEncodings
12	const encodings = Array.isArray(supported) && supported.length > 0
13	? supported
14	: ["aesgcm"]
15	const endpoint = suscripcion.endpoint
16	const publicKey = key === null
17	? null
18	: btoa(String.fromCharCode.apply(null, new Uint8Array(key)))
19	const authToken = token === null
20	? null
21	: btoa(String.fromCharCode.apply(null, new Uint8Array(token)))
22	const contentEncoding = encodings[0]
23	return {
24	endpoint,
25	publicKey,
26	authToken,
27	contentEncoding
28	}
29	}
30

3. js / lib / cancelaSuscripcionPush.js

import { getSuscripcionPush } from "./getSuscripcionPush.js"

export async function cancelaSuscripcionPush() {
 const suscripcion = await getSuscripcionPush()
 const resultado = suscripcion === null
  ? false
  : await suscripcion.unsubscribe()
 return resultado === true ? suscripcion : null
}

1	import { getSuscripcionPush } from "./getSuscripcionPush.js"
2
3	export async function cancelaSuscripcionPush() {
4	const suscripcion = await getSuscripcionPush()
5	const resultado = suscripcion === null
6	? false
7	: await suscripcion.unsubscribe()
8	return resultado === true ? suscripcion : null
9	}

4. js / lib / consume.js

import { ProblemDetailsError } from "./ProblemDetailsError.js"

/**
 * Espera a que la promesa de un fetch termine. Si
 * hay error, lanza una excepción.
 * 
 * @param {Promise<Response> } servicio
 */
export async function consume(servicio) {
 const respuesta = await servicio
 if (respuesta.ok) {
  return respuesta
 } else {
  const contentType = respuesta.headers.get("Content-Type")
  if (
   contentType !== null && contentType.startsWith("application/problem+json")
  )
   throw new ProblemDetailsError(await respuesta.json())
  else
   throw new Error(respuesta.statusText)
 }
}

1	import { ProblemDetailsError } from "./ProblemDetailsError.js"
2
3	/**
4	* Espera a que la promesa de un fetch termine. Si
5	* hay error, lanza una excepción.
6	*
7	* @param {Promise<Response> } servicio
8	*/
9	export async function consume(servicio) {
10	const respuesta = await servicio
11	if (respuesta.ok) {
12	return respuesta
13	} else {
14	const contentType = respuesta.headers.get("Content-Type")
15	if (
16	contentType !== null && contentType.startsWith("application/problem+json")
17	)
18	throw new ProblemDetailsError(await respuesta.json())
19	else
20	throw new Error(respuesta.statusText)
21	}
22	}

5. js / lib / descargaVista.js

import { consume } from "./consume.js"
import { muestraObjeto } from "./muestraObjeto.js"
import { recibeJson } from "./recibeJson.js"

/**
 * @param {string} url
 * @param { "GET" | "POST"| "PUT" | "PATCH" | "DELETE" | "TRACE" | "OPTIONS"
 *  | "CONNECT" | "HEAD" } metodoHttp
 */
export async function descargaVista(url, metodoHttp = "GET") {
 const respuesta = await consume(recibeJson(url, metodoHttp))
 const json = await respuesta.json()
 muestraObjeto(document, json)
 return json
}

1	import { consume } from "./consume.js"
2	import { muestraObjeto } from "./muestraObjeto.js"
3	import { recibeJson } from "./recibeJson.js"
4
5	/**
6	* @param {string} url
7	* @param { "GET" \| "POST"\| "PUT" \| "PATCH" \| "DELETE" \| "TRACE" \| "OPTIONS"
8	* \| "CONNECT" \| "HEAD" } metodoHttp
9	*/
10	export async function descargaVista(url, metodoHttp = "GET") {
11	const respuesta = await consume(recibeJson(url, metodoHttp))
12	const json = await respuesta.json()
13	muestraObjeto(document, json)
14	return json
15	}

6. js / lib / enviaJsonRecibeJson.js


/**
 * @param { string } url
 * @param { Object } body
 * @param { "GET" | "POST"| "PUT" | "PATCH" | "DELETE" | "TRACE" | "OPTIONS"
 *  | "CONNECT" | "HEAD" } metodoHttp
 */
export async function enviaJsonRecibeJson(url, body, metodoHttp = "POST") {
 return fetch(
  url,
  {
   method: metodoHttp,
   headers: {
    "Content-Type": "application/json",
    "Accept": "application/json, application/problem+json"
   },
   body: JSON.stringify(body)
  }
 )
}

1
2	/**
3	* @param { string } url
4	* @param { Object } body
5	* @param { "GET" \| "POST"\| "PUT" \| "PATCH" \| "DELETE" \| "TRACE" \| "OPTIONS"
6	* \| "CONNECT" \| "HEAD" } metodoHttp
7	*/
8	export async function enviaJsonRecibeJson(url, body, metodoHttp = "POST") {
9	return fetch(
10	url,
11	{
12	method: metodoHttp,
13	headers: {
14	"Content-Type": "application/json",
15	"Accept": "application/json, application/problem+json"
16	},
17	body: JSON.stringify(body)
18	}
19	)
20	}

7. js / lib / getSuscripcionPush.js

export async function getSuscripcionPush() {
 // Recupera el service worker registrado.
 const registro = await navigator.serviceWorker.ready
 return registro.pushManager.getSubscription()
}

1	export async function getSuscripcionPush() {
2	// Recupera el service worker registrado.
3	const registro = await navigator.serviceWorker.ready
4	return registro.pushManager.getSubscription()
5	}

8. js / lib / manejaErrores.js

import { muestraError } from "./muestraError.js"

/**
 * Intercepta Response.prototype.json para capturar errores de parseo
 * y asegurar que se reporten correctamente en navegadores Chromium.
 */
{
 const originalJson = Response.prototype.json

 Response.prototype.json = function () {
  // Llamamos al método original usando el contexto (this) de la respuesta
  return originalJson.apply(this, arguments)
   .catch((/** @type {any} */ error) => {
    // Corrige un error de Chrome que evita el manejo correcto de errores.
    throw new Error(error)
   })
 }
}

window.onerror = function (
  /** @type {string} */ _message,
  /** @type {string} */ _url,
  /** @type {number} */ _line,
  /** @type {number} */ _column,
  /** @type {Error} */ errorObject
) {
 muestraError(errorObject)
 return true
}

window.addEventListener('unhandledrejection', event => {
 muestraError(event.reason)
 event.preventDefault()
})


1	import { muestraError } from "./muestraError.js"
2
3	/**
4	* Intercepta Response.prototype.json para capturar errores de parseo
5	* y asegurar que se reporten correctamente en navegadores Chromium.
6	*/
7	{
8	const originalJson = Response.prototype.json
9
10	Response.prototype.json = function () {
11	// Llamamos al método original usando el contexto (this) de la respuesta
12	return originalJson.apply(this, arguments)
13	.catch((/** @type {any} */ error) => {
14	// Corrige un error de Chrome que evita el manejo correcto de errores.
15	throw new Error(error)
16	})
17	}
18	}
19
20	window.onerror = function (
21	/** @type {string} */ _message,
22	/** @type {string} */ _url,
23	/** @type {number} */ _line,
24	/** @type {number} */ _column,
25	/** @type {Error} */ errorObject
26	) {
27	muestraError(errorObject)
28	return true
29	}
30
31	window.addEventListener('unhandledrejection', event => {
32	muestraError(event.reason)
33	event.preventDefault()
34	})
35

9. js / lib / muestraError.js

import { ProblemDetailsError } from "./ProblemDetailsError.js"

/**
 * Muestra los datos de una Error en la consola y en un cuadro de alerta.
 * @param { ProblemDetailsError | Error | null } error descripción del error.
 */
export function muestraError(error) {

 if (error === null) {

  console.error("Error")
  alert("Error")

 } else if (error instanceof ProblemDetailsError) {

  const problemDetails = error.problemDetails

  let mensaje =
   typeof problemDetails["title"] === "string" ? problemDetails["title"] : ""
  if (typeof problemDetails["detail"] === "string") {
   if (mensaje !== "") {
    mensaje += "\n\n"
   }
   mensaje += problemDetails["detail"]
  }
  if (mensaje === "") {
   mensaje = "Error"
  }
  console.error(error, problemDetails)
  alert(mensaje)

 } else {

  console.error(error)
  alert(error.message)

 }

}

1	import { ProblemDetailsError } from "./ProblemDetailsError.js"
2
3	/**
4	* Muestra los datos de una Error en la consola y en un cuadro de alerta.
5	* @param { ProblemDetailsError \| Error \| null } error descripción del error.
6	*/
7	export function muestraError(error) {
8
9	if (error === null) {
10
11	console.error("Error")
12	alert("Error")
13
14	} else if (error instanceof ProblemDetailsError) {
15
16	const problemDetails = error.problemDetails
17
18	let mensaje =
19	typeof problemDetails["title"] === "string" ? problemDetails["title"] : ""
20	if (typeof problemDetails["detail"] === "string") {
21	if (mensaje !== "") {
22	mensaje += "\n\n"
23	}
24	mensaje += problemDetails["detail"]
25	}
26	if (mensaje === "") {
27	mensaje = "Error"
28	}
29	console.error(error, problemDetails)
30	alert(mensaje)
31
32	} else {
33
34	console.error(error)
35	alert(error.message)
36
37	}
38
39	}

10. js / lib / muestraObjeto.js

/**
 * @param {Document | HTMLElement | ShadowRoot} raizHtml
 * @param { any } objeto
 */
export function muestraObjeto(raizHtml, objeto) {
 for (const [nombre, definiciones] of Object.entries(objeto)) {
  if (Array.isArray(definiciones)) {
   muestraArray(raizHtml, nombre, definiciones)
  } else if (definiciones !== undefined && definiciones !== null) {
   muestraElemento(raizHtml, nombre, definiciones)
  }
 }
}

/**
 * @param { string } nombre
 */
export function selectorDeNombre(nombre) {
 return `[id="${nombre}"],[name="${nombre}"],[data-name="${nombre}"]`
}

/**
 * @param { Document | HTMLElement | ShadowRoot } raizHtml
 * @param { string } propiedad
 * @param {any[]} valores
 */
function muestraArray(raizHtml, propiedad, valores) {
 const conjunto = new Set(valores)
 const elementos = raizHtml.querySelectorAll(selectorDeNombre(propiedad))
 if (elementos.length === 1 && elementos[0] instanceof HTMLSelectElement) {
  muestraOptions(elementos[0], conjunto)
 } else {
  muestraInputs(elementos, conjunto)
 }

}

/**
 * @param {HTMLSelectElement} select
 * @param {Set<any>} conjunto
 */
function muestraOptions(select, conjunto) {
 for (let i = 0, options = select.options, len = options.length; i < len; i++) {
  const option = options[i]
  option.selected = conjunto.has(option.value)
 }
}

/**
 * @param {NodeListOf<Element>} elementos
 * @param {Set<any>} conjunto
 */
function muestraInputs(elementos, conjunto) {
 for (let i = 0, len = elementos.length; i < len; i++) {
  const elemento = elementos[i]
  if (elemento instanceof HTMLInputElement) {
   elemento.checked = conjunto.has(elemento.value)
  }
 }
}

const data_ = "data-"
const data_Length = data_.length

/**
 * @param {Document | HTMLElement | ShadowRoot} raizHtml
 * @param {string} nombre
 * @param {{ [s: string]: any; } } definiciones
 */
function muestraElemento(raizHtml, nombre, definiciones) {
 const elemento = raizHtml.querySelector(selectorDeNombre(nombre))
 if (elemento !== null) {
  for (const [propiedad, valor] of Object.entries(definiciones)) {
   if (propiedad in elemento) {
    elemento[propiedad] = valor
   } else if (
    propiedad.length > data_Length
    && propiedad.startsWith(data_)
    && elemento instanceof HTMLElement
   ) {
    elemento.dataset[propiedad.substring(data_Length)] = valor
   }
  }
 }
}

1	/**
2	* @param {Document \| HTMLElement \| ShadowRoot} raizHtml
3	* @param { any } objeto
4	*/
5	export function muestraObjeto(raizHtml, objeto) {
6	for (const [nombre, definiciones] of Object.entries(objeto)) {
7	if (Array.isArray(definiciones)) {
8	muestraArray(raizHtml, nombre, definiciones)
9	} else if (definiciones !== undefined && definiciones !== null) {
10	muestraElemento(raizHtml, nombre, definiciones)
11	}
12	}
13	}
14
15	/**
16	* @param { string } nombre
17	*/
18	export function selectorDeNombre(nombre) {
19	return `[id="${nombre}"],[name="${nombre}"],[data-name="${nombre}"]`
20	}
21
22	/**
23	* @param { Document \| HTMLElement \| ShadowRoot } raizHtml
24	* @param { string } propiedad
25	* @param {any[]} valores
26	*/
27	function muestraArray(raizHtml, propiedad, valores) {
28	const conjunto = new Set(valores)
29	const elementos = raizHtml.querySelectorAll(selectorDeNombre(propiedad))
30	if (elementos.length === 1 && elementos[0] instanceof HTMLSelectElement) {
31	muestraOptions(elementos[0], conjunto)
32	} else {
33	muestraInputs(elementos, conjunto)
34	}
35
36	}
37
38	/**
39	* @param {HTMLSelectElement} select
40	* @param {Set<any>} conjunto
41	*/
42	function muestraOptions(select, conjunto) {
43	for (let i = 0, options = select.options, len = options.length; i < len; i++) {
44	const option = options[i]
45	option.selected = conjunto.has(option.value)
46	}
47	}
48
49	/**
50	* @param {NodeListOf<Element>} elementos
51	* @param {Set<any>} conjunto
52	*/
53	function muestraInputs(elementos, conjunto) {
54	for (let i = 0, len = elementos.length; i < len; i++) {
55	const elemento = elementos[i]
56	if (elemento instanceof HTMLInputElement) {
57	elemento.checked = conjunto.has(elemento.value)
58	}
59	}
60	}
61
62	const data_ = "data-"
63	const data_Length = data_.length
64
65	/**
66	* @param {Document \| HTMLElement \| ShadowRoot} raizHtml
67	* @param {string} nombre
68	* @param {{ [s: string]: any; } } definiciones
69	*/
70	function muestraElemento(raizHtml, nombre, definiciones) {
71	const elemento = raizHtml.querySelector(selectorDeNombre(nombre))
72	if (elemento !== null) {
73	for (const [propiedad, valor] of Object.entries(definiciones)) {
74	if (propiedad in elemento) {
75	elemento[propiedad] = valor
76	} else if (
77	propiedad.length > data_Length
78	&& propiedad.startsWith(data_)
79	&& elemento instanceof HTMLElement
80	) {
81	elemento.dataset[propiedad.substring(data_Length)] = valor
82	}
83	}
84	}
85	}

11. js / lib / ProblemDetailsError.js

export class ProblemDetailsError extends Error {

 /**
  * Detalle de los errores devueltos por un servicio.
  * Crea una instancia de ProblemDetailsError.
  * @param {object} problemDetails Objeto con la descripcipon del error.
  */
 constructor(problemDetails) {

  super(typeof problemDetails["detail"] === "string"
   ? problemDetails["detail"]
   : (typeof problemDetails["title"] === "string"
    ? problemDetails["title"]
    : "Error"))

  this.problemDetails = problemDetails

 }

}

1	export class ProblemDetailsError extends Error {
2
3	/**
4	* Detalle de los errores devueltos por un servicio.
5	* Crea una instancia de ProblemDetailsError.
6	* @param {object} problemDetails Objeto con la descripcipon del error.
7	*/
8	constructor(problemDetails) {
9
10	super(typeof problemDetails["detail"] === "string"
11	? problemDetails["detail"]
12	: (typeof problemDetails["title"] === "string"
13	? problemDetails["title"]
14	: "Error"))
15
16	this.problemDetails = problemDetails
17
18	}
19
20	}

12. js / lib / recibeJson.js


/**
 * @param {string} url
 * @param { "GET" | "POST"| "PUT" | "PATCH" | "DELETE" | "TRACE" | "OPTIONS"
 *  | "CONNECT" | "HEAD" } metodoHttp
 */
export async function recibeJson(url, metodoHttp = "GET") {
 return fetch(
  url,
  {
   method: metodoHttp,
   headers: { "Accept": "application/json, application/problem+json" }
  }
 )
}

1
2	/**
3	* @param {string} url
4	* @param { "GET" \| "POST"\| "PUT" \| "PATCH" \| "DELETE" \| "TRACE" \| "OPTIONS"
5	* \| "CONNECT" \| "HEAD" } metodoHttp
6	*/
7	export async function recibeJson(url, metodoHttp = "GET") {
8	return fetch(
9	url,
10	{
11	method: metodoHttp,
12	headers: { "Accept": "application/json, application/problem+json" }
13	}
14	)
15	}

13. js / lib / suscribeAPush.js

/**
 * @param { ArrayBuffer } applicationServerKey
 */
export async function suscribeAPush(applicationServerKey) {
 // Recupera el service worker registrado.
 const registro = await navigator.serviceWorker.ready
 return registro.pushManager.subscribe({
  userVisibleOnly: true,
  applicationServerKey
 })
}

1	/**
2	* @param { ArrayBuffer } applicationServerKey
3	*/
4	export async function suscribeAPush(applicationServerKey) {
5	// Recupera el service worker registrado.
6	const registro = await navigator.serviceWorker.ready
7	return registro.pushManager.subscribe({
8	userVisibleOnly: true,
9	applicationServerKey
10	})
11	}

14. js / lib / urlBase64ToUint8Array.js

/**
 * @param { string } base64String
 */
export function urlBase64ToUint8Array(base64String) {
 const padding = "=".repeat((4 - (base64String.length % 4)) % 4)
 const base64 = (base64String + padding).replace(/\-/g, '+').replace(/_/g, '/')
 const rawData = atob(base64)
 const outputArray = new Uint8Array(rawData.length)
 for (let i = 0; i < rawData.length; ++i) {
  outputArray[i] = rawData.charCodeAt(i)
 }
 return outputArray
}

1	/**
2	* @param { string } base64String
3	*/
4	export function urlBase64ToUint8Array(base64String) {
5	const padding = "=".repeat((4 - (base64String.length % 4)) % 4)
6	const base64 = (base64String + padding).replace(/\-/g, '+').replace(/_/g, '/')
7	const rawData = atob(base64)
8	const outputArray = new Uint8Array(rawData.length)
9	for (let i = 0; i < rawData.length; ++i) {
10	outputArray[i] = rawData.charCodeAt(i)
11	}
12	return outputArray
13	}

1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>El authToken debe ser texto que no esté en blanco</title>
10
11	<body>
12
13	<h1>El authToken debe ser texto que no esté en blanco</h1>
14
15	</body>
16
17	</html>

1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>La contentEncoding debe ser texto que no esté en blanco</title>
10
11	<body>
12
13	<h1>La contentEncoding debe ser texto que no esté en blanco</h1>
14
15	</body>
16
17	</html>

1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>Los datos recibidos no están en formato JSON</title>
10
11	</head>
12
13	<body>
14
15	<h1>Los datos recibidos no están en formato JSON</h1>
16
17	</body>
18
19	</html>

1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>El endpoint debe ser texto que no esté en blanco</title>
10
11	<body>
12
13	<h1>El endpoint debe ser texto que no esté en blanco</h1>
14
15	</body>
16
17	</html>

1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>Error interno del servidor</title>
10
11	</head>
12
13	<body>
14
15	<h1>Error interno del servidor</h1>
16
17	<p>Se presentó de forma inesperada un error interno del servidor.</p>
18
19	</body>
20
21	</html>

1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>La publicKey debe ser texto que no esté en blanco</title>
10
11	<body>
12
13	<h1>La publicKey debe ser texto que no esté en blanco</h1>
14
15	</body>
16
17	</html>

1	<!DOCTYPE html>
2	<html lang="es">
3
4	<head>
5
6	<meta charset="UTF-8">
7	<meta name="viewport" content="width=device-width">
8
9	<title>El resultado no puede representarse como JSON</title>
10
11	</head>
12
13	<body>
14
15	<h1>El resultado no puede representarse como JSON</h1>
16
17	<p>
18	Debido a un error interno del servidor, el resultado generado, no se puede
19	recuperar.
20	</p>
21
22	</body>
23
24	</html>

1	{
2	"require": {
3	"minishlink/web-push": "^10.0.1"
4	}
5	}

13. composer.lock

{
    "_readme": [
        "This file locks the dependencies of your project to a known state",
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333	"name": "Michael Dowling",
334	"email": "mtdowling@gmail.com",
335	"homepage": "https://github.com/mtdowling"
336	},
337	{
338	"name": "George Mponos",
339	"email": "gmponos@gmail.com",
340	"homepage": "https://github.com/gmponos"
341	},
342	{
343	"name": "Tobias Nyholm",
344	"email": "tobias.nyholm@gmail.com",
345	"homepage": "https://github.com/Nyholm"
346	},
347	{
348	"name": "Márk Sági-Kazár",
349	"email": "mark.sagikazar@gmail.com",
350	"homepage": "https://github.com/sagikazarmark"
351	},
352	{
353	"name": "Tobias Schultze",
354	"email": "webmaster@tubo-world.de",
355	"homepage": "https://github.com/Tobion"
356	},
357	{
358	"name": "Márk Sági-Kazár",
359	"email": "mark.sagikazar@gmail.com",
360	"homepage": "https://sagikazarmark.hu"
361	}
362	],
363	"description": "PSR-7 message implementation that also provides common utility methods",
364	"keywords": [
365	"http",
366	"message",
367	"psr-7",
368	"request",
369	"response",
370	"stream",
371	"uri",
372	"url"
373	],
374	"support": {
375	"issues": "https://github.com/guzzle/psr7/issues",
376	"source": "https://github.com/guzzle/psr7/tree/2.8.0"
377	},
378	"funding": [
379	{
380	"url": "https://github.com/GrahamCampbell",
381	"type": "github"
382	},
383	{
384	"url": "https://github.com/Nyholm",
385	"type": "github"
386	},
387	{
388	"url": "https://tidelift.com/funding/github/packagist/guzzlehttp/psr7",
389	"type": "tidelift"
390	}
391	],
392	"time": "2025-08-23T21:21:41+00:00"
393	},
394	{
395	"name": "minishlink/web-push",
396	"version": "v10.0.1",
397	"source": {
398	"type": "git",
399	"url": "https://github.com/web-push-libs/web-push-php.git",
400	"reference": "08463189d3501cbd78a8625c87ab6680a7397aad"
401	},
402	"dist": {
403	"type": "zip",
404	"url": "https://api.github.com/repos/web-push-libs/web-push-php/zipball/08463189d3501cbd78a8625c87ab6680a7397aad",
405	"reference": "08463189d3501cbd78a8625c87ab6680a7397aad",
406	"shasum": ""
407	},
408	"require": {
409	"ext-curl": "*",
410	"ext-json": "*",
411	"ext-mbstring": "*",
412	"ext-openssl": "*",
413	"guzzlehttp/guzzle": "^7.9.2",
414	"php": ">=8.2",
415	"spomky-labs/base64url": "^2.0.4",
416	"web-token/jwt-library": "^3.4.9\|^4.0.6"
417	},
418	"require-dev": {
419	"friendsofphp/php-cs-fixer": "^v3.91.3",
420	"phpstan/phpstan": "^2.1.33",
421	"phpstan/phpstan-strict-rules": "^2.0",
422	"phpunit/phpunit": "^11.5.46\|^12.5.2",
423	"symfony/polyfill-iconv": "^1.33"
424	},
425	"suggest": {
426	"ext-bcmath": "Optional for performance.",
427	"ext-gmp": "Optional for performance."
428	},
429	"type": "library",
430	"autoload": {
431	"psr-4": {
432	"Minishlink\\WebPush\\": "src"
433	}
434	},
435	"notification-url": "https://packagist.org/downloads/",
436	"license": [
437	"MIT"
438	],
439	"authors": [
440	{
441	"name": "Louis Lagrange",
442	"email": "lagrange.louis@gmail.com",
443	"homepage": "https://github.com/Minishlink"
444	}
445	],
446	"description": "Web Push library for PHP",
447	"homepage": "https://github.com/web-push-libs/web-push-php",
448	"keywords": [
449	"Push API",
450	"WebPush",
451	"notifications",
452	"push",
453	"web"
454	],
455	"support": {
456	"issues": "https://github.com/web-push-libs/web-push-php/issues",
457	"source": "https://github.com/web-push-libs/web-push-php/tree/v10.0.1"
458	},
459	"time": "2025-12-15T10:04:28+00:00"
460	},
461	{
462	"name": "psr/clock",
463	"version": "1.0.0",
464	"source": {
465	"type": "git",
466	"url": "https://github.com/php-fig/clock.git",
467	"reference": "e41a24703d4560fd0acb709162f73b8adfc3aa0d"
468	},
469	"dist": {
470	"type": "zip",
471	"url": "https://api.github.com/repos/php-fig/clock/zipball/e41a24703d4560fd0acb709162f73b8adfc3aa0d",
472	"reference": "e41a24703d4560fd0acb709162f73b8adfc3aa0d",
473	"shasum": ""
474	},
475	"require": {
476	"php": "^7.0 \|\| ^8.0"
477	},
478	"type": "library",
479	"autoload": {
480	"psr-4": {
481	"Psr\\Clock\\": "src/"
482	}
483	},
484	"notification-url": "https://packagist.org/downloads/",
485	"license": [
486	"MIT"
487	],
488	"authors": [
489	{
490	"name": "PHP-FIG",
491	"homepage": "https://www.php-fig.org/"
492	}
493	],
494	"description": "Common interface for reading the clock.",
495	"homepage": "https://github.com/php-fig/clock",
496	"keywords": [
497	"clock",
498	"now",
499	"psr",
500	"psr-20",

1	{
2	"compilerOptions": {
3	"checkJs": true,
4	"strictNullChecks": true,
5	"target": "ES6",
6	"module": "Node16",
7	"moduleResolution": "Node16",
8	"lib": [
9	"ES2017",
10	"WebWorker",
11	"DOM"
12	]
18	}

1	<?php
2
3	class Bd
4	{
5
6	private static ?PDO $pdo = null;
7
8	static function pdo(): PDO
9	{
10	if (self::$pdo === null) {
11
12	self::$pdo = new PDO(
13	// cadena de conexión
14	"sqlite:" . __DIR__ . "/notipush.db",
15	// usuario
16	null,
17	// contraseña
18	null,
19	// Opciones: pdos no persistentes y lanza excepciones.
20	[PDO::ATTR_PERSISTENT => false, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
21	);
22
23	self::$pdo->exec(
24	'CREATE TABLE IF NOT EXISTS SUSCRIPCION (
25	SUS_ENDPOINT TEXT NOT NULL,
26	SUS_PUB_KEY TEXT NOT NULL,
27	SUS_AUT_TOK TEXT NOT NULL,
28	SUS_CONT_ENCOD TEXT NOT NULL,
29	CONSTRAINT SUS_PK
30	PRIMARY KEY(SUS_ENDPOINT),
31	CONSTRAINT SUS_ENDPNT_NV
32	CHECK(LENGTH(SUS_ENDPOINT) > 0)
33	)'
34	);
35	}
36
37	return self::$pdo;
38	}
39	}
40

1	<?php
2
3	require_once __DIR__ . "/lib/manejaErrores.php";
4	require_once __DIR__ . "/../vendor/autoload.php";
5	require_once __DIR__ . "/lib/devuelveJson.php";
6	require_once __DIR__ . "/Bd.php";
7	require_once __DIR__ . "/Suscripcion.php";
8	require_once __DIR__ . "/suscripcionElimina.php";
9
10	use Minishlink\WebPush\WebPush;
11
12	const AUTH = [
13	"VAPID" => [
14	"subject" => "https://notipush.rf.gd/",
15	"publicKey" => "BMBlr6YznhYMX3NgcWIDRxZXs0sh7tCv7_YCsWcww0ZCv9WGg-tRCXfMEHTiBPCksSqeve1twlbmVAZFv7GSuj0",
16	"privateKey" => "vplfkITvu0cwHqzK9Kj-DYStbCH_9AhGx9LqMyaeI6w"
17	]
18	];
19
20	$webPush = new WebPush(AUTH);
21	$mensaje = "Hola! 👋";
22
23	// Envia el mensaje a todas las suscripciones.
24
25	$bd = Bd::pdo();
26	$stmt = $bd->query("SELECT * FROM SUSCRIPCION");
27	$suscripciones =
28	$stmt->fetchAll(PDO::FETCH_CLASS \| PDO::FETCH_PROPS_LATE, Suscripcion::class);
29
30	foreach ($suscripciones as $suscripcion) {
31	$webPush->queueNotification($suscripcion, $mensaje);
32	}
33	$reportes = $webPush->flush();
34
35	// Genera el reporte de envio a cada suscripcion.
36	$reporteDeEnvios = "";
37	foreach ($reportes as $reporte) {
38	$endpoint = $reporte->getRequest()->getUri();
39	$htmlEndpoint = htmlentities($endpoint);
40	if ($reporte->isSuccess()) {
41	// Reporte de éxito.
42	$reporteDeEnvios .= "<dt>$htmlEndpoint</dt><dd>Éxito</dd>";
43	} else {
44	if ($reporte->isSubscriptionExpired()) {
45	suscripcionElimina($bd, $endpoint);
46	}
47	// Reporte de fallo.
48	$explicacion = htmlentities($reporte->getReason());
49	$reporteDeEnvios .= "<dt>$endpoint</dt><dd>Fallo: $explicacion</dd>";
50	}
51	}
52
53	devuelveJson(["reporte" => ["innerHTML" => $reporteDeEnvios]]);
54

1	<?php
2
3	require_once __DIR__ . "/lib/BAD_REQUEST.php";
4	require_once __DIR__ . "/lib/recibeJson.php";
5	require_once __DIR__ . "/lib/ProblemDetailsException.php";
6
7	function recibeSuscripcion()
8	{
9
10	$objeto = recibeJson();
11
12	if (
13	!isset($objeto->authToken)
14	\|\| !is_string($objeto->authToken)
15	\|\| $objeto->authToken === ""
16	)
17	throw new ProblemDetailsException([
18	"status" => BAD_REQUEST,
19	"title" => "El authToken debe ser texto que no esté en blanco.",
20	"type" => "/errors/authtokenincorrecto.html",
21	]);
22
23	if (
24	!isset($objeto->contentEncoding)
25	\|\| !is_string($objeto->contentEncoding)
26	\|\| $objeto->contentEncoding === ""
27	)
28	throw new ProblemDetailsException([
29	"status" => BAD_REQUEST,
30	"title" => "La contentEncoding debe ser texto que no esté en blanco.",
31	"type" => "/errors/contentencodingincorrecta.html",
32	]);
33
34	if (
35	!isset($objeto->endpoint)
36	\|\| !is_string($objeto->endpoint)
37	\|\| $objeto->endpoint === ""
38	)
39	throw new ProblemDetailsException([
40	"status" => BAD_REQUEST,
41	"title" => "El endpoint debe ser texto que no esté en blanco.",
42	"type" => "/errors/endpointincorrecto.html",
43	]);
44
45	if (
46	!isset($objeto->publicKey)
47	\|\| !is_string($objeto->publicKey)
48	\|\| $objeto->publicKey === ""
49	)
50	throw new ProblemDetailsException([
51	"status" => BAD_REQUEST,
52	"title" => "La publicKey debe ser texto que no esté en blanco.",
53	"type" => "/errors/publickeyincorrecta.html",
54	]);
55
56	return [
57	"SUS_AUT_TOK" => $objeto->authToken,
58	"SUS_CONT_ENCOD" => $objeto->contentEncoding,
59	"SUS_ENDPOINT" => $objeto->endpoint,
60	"SUS_PUB_KEY" => $objeto->publicKey,
61	];
62	}
63

1	<?php
2
3	require_once __DIR__ . "/lib/manejaErrores.php";
4	require_once __DIR__ . "/lib/devuelveNoContent.php";
5	require_once __DIR__ . "/Bd.php";
6	require_once __DIR__ . "/recibeSuscripcion.php";
7	require_once __DIR__ . "/suscripcionElimina.php";
8
9	$modelo = recibeSuscripcion();
10	suscripcionElimina(Bd::pdo(), $modelo["SUS_ENDPOINT"]);
11	devuelveNoContent();
12

1	<?php
2
3	require_once __DIR__ . "/lib/manejaErrores.php";
4	require_once __DIR__ . "/lib/devuelveCreated.php";
5	require_once __DIR__ . "/lib/devuelveJson.php";
6	require_once __DIR__ . "/Bd.php";
7	require_once __DIR__ . "/recibeSuscripcion.php";
8
9	$modelo = recibeSuscripcion();
10
11	$bd = Bd::pdo();
12
13	$stmt =
14	$bd->prepare("SELECT * FROM SUSCRIPCION WHERE SUS_ENDPOINT = :SUS_ENDPOINT");
15	$stmt->execute([":SUS_ENDPOINT" => $modelo["SUS_ENDPOINT"]]);
16	$anterior = $stmt->fetch(PDO::FETCH_ASSOC);
17
18	if ($anterior === false) {
19
20	$stmt = $bd->prepare(
21	"INSERT INTO SUSCRIPCION (
22	SUS_ENDPOINT, SUS_PUB_KEY, SUS_AUT_TOK, SUS_CONT_ENCOD
23	) values (
24	:SUS_ENDPOINT, :SUS_PUB_KEY, :SUS_AUT_TOK, :SUS_CONT_ENCOD
25	)"
26	);
27	$stmt->execute([
28	":SUS_ENDPOINT" => $modelo["SUS_ENDPOINT"],
29	":SUS_PUB_KEY" => $modelo["SUS_PUB_KEY"],
30	":SUS_AUT_TOK" => $modelo["SUS_AUT_TOK"],
31	":SUS_CONT_ENCOD" => $modelo["SUS_CONT_ENCOD"],
32	]);
33
34	devuelveCreated("", $modelo);
35	} else {
36
37	$stmt = $bd->prepare(
38	"UPDATE SUSCRIPCION
39	SET
40	SUS_PUB_KEY = :SUS_PUB_KEY,
41	SUS_AUT_TOK = :SUS_AUT_TOK,
42	SUS_CONT_ENCOD = :SUS_CONT_ENCOD
43	WHERE
44	SUS_ENDPOINT = :SUS_ENDPOINT"
45	);
46	$stmt->execute([
47	":SUS_PUB_KEY" => $modelo["SUS_PUB_KEY"],
48	":SUS_AUT_TOK" => $modelo["SUS_AUT_TOK"],
49	":SUS_CONT_ENCOD" => $modelo["SUS_CONT_ENCOD"],
50	":SUS_ENDPOINT" => $modelo["SUS_ENDPOINT"],
51	]);
52
53	devuelveJson($modelo);
54	}
55

1	<?php
2
3	require_once __DIR__ . "/../vendor/autoload.php";
4
5	use Minishlink\WebPush\SubscriptionInterface;
6
7	class Suscripcion implements SubscriptionInterface
8	{
9
10	public string $SUS_ENDPOINT;
11	public string $SUS_PUB_KEY;
12	public string $SUS_AUT_TOK;
13	public string $SUS_CONT_ENCOD;
14
15	public function __construct(
16	string $SUS_ENDPOINT = "",
17	string $SUS_PUB_KEY = "",
18	string $SUS_AUT_TOK = "",
19	string $SUS_CONT_ENCOD = ""
20	) {
21	$this->SUS_ENDPOINT = $SUS_ENDPOINT;
22	$this->SUS_PUB_KEY = $SUS_PUB_KEY;
23	$this->SUS_AUT_TOK = $SUS_AUT_TOK;
24	$this->SUS_CONT_ENCOD = $SUS_CONT_ENCOD;
25	}
26
27	public function getEndpoint(): string
28	{
29	return $this->SUS_ENDPOINT;
30	}
31
32	public function getPublicKey(): ?string
33	{
34	return $this->SUS_PUB_KEY;
35	}
36
37	public function getAuthToken(): ?string
38	{
39	return $this->SUS_AUT_TOK;
40	}
41
42	public function getContentEncoding(): ?string
43	{
44	return $this->SUS_CONT_ENCOD;
45	}
46	}
47

1	<?php
2
3	function suscripcionElimina(\PDO $bd, string $endpoint)
4	{
5	$stmt =
6	$bd->prepare("DELETE FROM SUSCRIPCION WHERE SUS_ENDPOINT = :SUS_ENDPOINT");
7	$stmt->execute([":SUS_ENDPOINT" => $endpoint]);
8	}
9

1	<?php
2
3	require_once __DIR__ . "/devuelveResultadoNoJson.php";
4
5	function devuelveCreated($urlDelNuevo, $resultado)
6	{
7	$json = json_encode($resultado);
8	if ($json === false) {
9	devuelveResultadoNoJson();
10	} else {
11	http_response_code(201);
12	header("Location: $urlDelNuevo");
13	header("Content-Type: application/json; charset=utf-8");
14	echo $json;
15	}
16	}
17

1	<?php
2
3	require_once __DIR__ . "/devuelveResultadoNoJson.php";
4
5	function devuelveJson($resultado)
6	{
7	$json = json_encode($resultado);
8	if ($json === false) {
9	devuelveResultadoNoJson();
10	} else {
11	header("Content-Type: application/json; charset=utf-8");
12	echo $json;
13	}
14	exit();
15	}
16

1	<?php
2
3	function devuelveNoContent()
4	{
5	http_response_code(204);
6	}
7

1	<?php
2
3	require_once __DIR__ . "/INTERNAL_SERVER_ERROR.php";
4
5	function devuelveResultadoNoJson()
6	{
7	http_response_code(INTERNAL_SERVER_ERROR);
8	header("Content-Type: application/problem+json; charset=utf-8");
9
10	echo '{' .
11	"status: " . INTERNAL_SERVER_ERROR .
12	'"title": "El resultado no puede representarse como JSON."' .
13	'"type": "/errors/resultadonojson.html"' .
14	'}';
15	}
16

1	<?php
2
3	require_once __DIR__ . "/INTERNAL_SERVER_ERROR.php";
4	require_once __DIR__ . "/ProblemDetailsException.php";
5
6	// Hace que se lance una excepción automáticamente cuando se genere un error.
7	set_error_handler(function ($severity, $message, $file, $line) {
8	throw new ErrorException($message, 0, $severity, $file, $line);
9	});
10
11	// Código cuando una excepción no es atrapada.
12	set_exception_handler(function (Throwable $excepcion) {
13	if ($excepcion instanceof ProblemDetailsException) {
14	devuelveProblemDetails($excepcion->problemDetails);
15	} else {
16	devuelveProblemDetails([
17	"status" => INTERNAL_SERVER_ERROR,
18	"title" => "Error interno del servidor",
19	"detail" => $excepcion->getMessage(),
20	"type" => "/errors/errorinterno.html",
21	]);
22	}
23	exit();
24	});
25
26	function devuelveProblemDetails(array $array)
27	{
28	$json = json_encode($array);
29	if ($json === false) {
30	devuelveResultadoNoJson();
31	} else {
32	http_response_code(isset($array["status"]) ? $array["status"] : 500);
33	header("Content-Type: application/problem+json; charset=utf-8");
34	echo $json;
35	}
36	}
37

1	<?php
2
3	require_once __DIR__ . "/BAD_REQUEST.php";
4
5	function recibeJson()
6	{
7	$json = json_decode(file_get_contents("php://input"));
8
9	if ($json === null) {
10
11	http_response_code(BAD_REQUEST);
12	header("Content-Type: application/problem+json; charset=utf-8");
13
14	echo '{' .
15	"status: " . BAD_REQUEST .
16	'"title": "Los datos recibidos no están en formato JSON."' .
17	'"type": "/errors/datosnojson.html"' .
18	'}';
19
20	exit();
21	}
22
23	return $json;
24	}
25

13. Notificaciones push

1. Introduccion

2. Diagrama entidad relación

3. Diagrama de despliegue

4. Hazlo funcionar (con videos)

5. Hazlo funcionar (texto)

6. Archivos

7. index.html

8. sw.js

9. Carpeta « php »

A. php / Bd.php

B. php / genera-llaves.php

C. php / notifica.php

D. php / recibeSuscripcion.php

E. php / suscripcion-elimina.php

F. php / suscripcion-modifica.php

G. php / Suscripcion.php

H. php / suscripcionElimina.php

I. Carpeta « php / lib »

1. php / lib / BAD_REQUEST.php

2. php / lib / devuelveCreated.php

3. php / lib / devuelveJson.php

4. php / lib / devuelveNoContent.php

5. php / lib / devuelveResultadoNoJson.php

6. php / lib / INTERNAL_SERVER_ERROR.php

7. php / lib / manejaErrores.php

8. php / lib / ProblemDetailsException.php

9. php / lib / recibeJson.php

10. Carpeta « js »

A. Carpeta « js / lib »

1. js / lib / activaNotificacionesPush.js

2. js / lib / calculaDtoParaSuscripcion.js

3. js / lib / cancelaSuscripcionPush.js

4. js / lib / consume.js

5. js / lib / descargaVista.js

6. js / lib / enviaJsonRecibeJson.js

7. js / lib / getSuscripcionPush.js

8. js / lib / manejaErrores.js

9. js / lib / muestraError.js

10. js / lib / muestraObjeto.js

11. js / lib / ProblemDetailsError.js

12. js / lib / recibeJson.js

13. js / lib / suscribeAPush.js

14. js / lib / urlBase64ToUint8Array.js

11. Carpeta « errors »

A. errors / authtokenincorrecto.html

B. errors / contentencodingincorrecta.html

C. errors / datosnojson.html

D. errors / endpointincorrecto.html

E. errors / errorinterno.html

F. errors / publickeyincorrecta.html

G. errors / resultadonojson.html

12. composer.json

13. composer.lock

14. Carpeta « vendor »

A. vendor / -- No se muestra el contenido de esta carpeta --

15. jsconfig.json

16. Resumen