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>Autenticación</title>
10
11	<link rel="stylesheet" href="css/estilos.css">
12	<script src="dompurify/purify.min.js"></script>
13	<script type="module" src="libclienteweb/manejaErrores.js"></script>
14	<script type="module" src="js/custom/mi-nav.js"></script>
15
16	</head>
17
18	<body>
19
20	<mi-nav></mi-nav>
21
22	<h1>Autenticación</h1>
23
24	<p>Bienvenid@.</p>
25
26	<script type="module" src="js/index.js"></script>
27
28	</body>
29
30	</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>Perfil</title>
10
11	<link rel="stylesheet" href="css/estilos.css">
12	<script src="dompurify/purify.min.js"></script>
13	<script type="module" src="libclienteweb/manejaErrores.js"></script>
14	<script type="module" src="js/custom/mi-nav.js"></script>
15
16
17	</head>
18
19	<body>
20
21	<mi-nav></mi-nav>
22
23	<h1>Perfil</h1>
24
25	<p>
26	<output id="outputSan">
27	<progress max="100">Cargando…</progress>
28	</output>
29	</p>
30
31	<p>
32	<output id="outputRoles"></output>
33	</p>
34
35	<p>
36
37	<a id="login" hidden href="login.html">Iniciar sesión</a>
38
39	<button id="botonLogout" type="button" hidden>
40	Terminar sesión
41	</button>
42
43	</p>
44
45	<script type="module" src="js/perfil.js"></script>
46
47	</body>
48
49	</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>Iniciar sesión</title>
10
11	<link rel="stylesheet" href="css/estilos.css">
12	<script src="dompurify/purify.min.js"></script>
13	<script type="module" src="libclienteweb/manejaErrores.js"></script>
14
15	</head>
16
17	<body>
18
19	<progress id="ocupado" max="100">Cargando…</progress>
20
21	<form id="formulario" hidden>
22
23	<h1>Iniciar Sesión</h1>
24
25	<p><a href="perfil.html">Cancelar</a></p>
26
27	<p>
28	<label>
29	San
30	<input name="san">
31	</label>
32	</p>
33
34	<p>
35	<label>
36	Sen
37	<input type="password" name="sen">
38	</label>
39	</p>
40
41	<p><button type="submit">Iniciar sesión</button></p>
42
43	</form>
44
45	<script type="module" src="js/login.js"></script>
46
47	</body>
48
49	</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>Solo Administradores</title>
10
11	<link rel="stylesheet" href="css/estilos.css">
12	<script src="dompurify/purify.min.js"></script>
13	<script type="module" src="libclienteweb/manejaErrores.js"></script>
14	<script type="module" src="js/custom/mi-nav.js"></script>
15
16	</head>
17
18	<body>
19
20	<mi-nav></mi-nav>
21
22	<main id="main" hidden>
23
24	<h1>Solo Administradores</h1>
25
26	<p>Hola.</p>
27
28	<p>
29	<button id="botonSaludo">
30	Ejecuta servicio
31	</button>
32	</p>
33
34	</main>
35
36	<script type="module" src="js/administrador.js"></script>
37
38	</body>
39
40	</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>Solo Clientes</title>
10
11	<link rel="stylesheet" href="css/estilos.css">
12	<script src="dompurify/purify.min.js"></script>
13	<script type="module" src="libclienteweb/manejaErrores.js"></script>
14	<script type="module" src="js/custom/mi-nav.js"></script>
15
16	</head>
17
18	<body>
19
20	<mi-nav></mi-nav>
21
22	<main id="main" hidden>
23
24	<h1>Solo Clientes</h1>
25
26	<p>Hola.</p>
27
28	<p>
29	<button id="botonSaludo">
30	Ejecuta servicio
31	</button>
32	</p>
33
34	</main>
35
36	<script type="module" src="js/cliente.js"></script>
37
38	</body>
39
40	</html>

1	AddType application/manifest+json .webmanifest
2
3	ExpiresActive On
4
5	Header set Cache-Control "max-age=1, must-revalidate"
6

O. Carpeta « api »

A. api / Bd.php

<?php

require_once __DIR__ . "/ROL_ID_CLIENTE.php";
require_once __DIR__ . "/ROL_ID_ADMINISTRADOR.php";
require_once __DIR__ . "/../libservidorphp/rolBusca.php";
require_once __DIR__ . "/../libservidorphp/rolAgrega.php";
require_once __DIR__ . "/../libservidorphp/usuRolAgrega.php";
require_once __DIR__ . "/usuarioBuscaSan.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__ . "/srvaut.db",
    // usuario
    null,
    // contraseña
    null,
    // Opciones: pdos no persistentes y lanza excepciones.
    [PDO::ATTR_PERSISTENT => false, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
   );

   self::$pdo->exec(
    'CREATE TABLE IF NOT EXISTS USUARIO (
      USU_ID INTEGER,
      USU_SAN TEXT NOT NULL,
      USU_SEN TEXT NOT NULL,
      CONSTRAINT USU_PK
       PRIMARY KEY(USU_ID),
      CONSTRAINT USU_SAN_UNQ
       UNIQUE(USU_SAN),
      CONSTRAINT USU_SAN_NV
       CHECK(LENGTH(USU_SAN) > 0)
     )'
   );
   self::$pdo->exec(
    'CREATE TABLE IF NOT EXISTS ROL (
      ROL_ID TEXT NOT NULL,
      ROL_DESCRIPCION TEXT NOT NULL,
      CONSTRAINT ROL_PK
       PRIMARY KEY(ROL_ID),
      CONSTRAINT ROL_ID_NV
       CHECK(LENGTH(ROL_ID) > 0),
      CONSTRAINT ROL_DESCR_UNQ
       UNIQUE(ROL_DESCRIPCION),
      CONSTRAINT ROL_DESCR_NV
       CHECK(LENGTH(ROL_DESCRIPCION) > 0)
     )'
   );
   self::$pdo->exec(
    'CREATE TABLE IF NOT EXISTS USU_ROL (
       USU_ID INTEGER NOT NULL,
       ROL_ID TEXT NOT NULL,
       CONSTRAINT USU_ROL_PK
        PRIMARY KEY(USU_ID, ROL_ID),
       CONSTRAINT USU_ROL_USU_FK
        FOREIGN KEY (USU_ID) REFERENCES USUARIO(USU_ID),
       CONSTRAINT USU_ROL_ROL_FK
        FOREIGN KEY (ROL_ID) REFERENCES ROL(ROL_ID)
      )'
   );

   self::$pdo->beginTransaction();

   if (rolBusca(self::$pdo, "Administrador") === false) {
    rolAgrega(
     bd: self::$pdo,
     id: "Administrador",
     descripcion: "Administra el sistema."
    );
   }

   if (rolBusca(self::$pdo, "Cliente") === false) {
    rolAgrega(
     bd: self::$pdo,
     id: "Cliente",
     descripcion: "Realiza compras."
    );
   }

   $usuarioAgrega = self::$pdo->prepare(
    "INSERT INTO USUARIO (
      USU_SAN, USU_SEN
     ) VALUES (
      :USU_SAN, :USU_SEN
     )"
   );

   if (usuarioBuscaSan(self::$pdo, "pepito") === false) {
    $usuarioAgrega->execute([
     ":USU_SAN" => "pepito",
     ":USU_SEN" => password_hash("cuentos", PASSWORD_DEFAULT),
    ]);
    $usuId = self::$pdo->lastInsertId();
    usuRolAgrega(self::$pdo, $usuId, [ROL_ID_CLIENTE]);
   }

   if (usuarioBuscaSan(self::$pdo, "susana") === false) {
    $usuarioAgrega->execute([
     ":USU_SAN" => "susana",
     ":USU_SEN" => password_hash("alegria", PASSWORD_DEFAULT),
    ]);
    $usuId = self::$pdo->lastInsertId();
    usuRolAgrega(self::$pdo, $usuId, [ROL_ID_ADMINISTRADOR]);
   }

   if (usuarioBuscaSan(self::$pdo, "bebe") === false) {
    $usuarioAgrega->execute([
     ":USU_SAN" => "bebe",
     ":USU_SEN" => password_hash("saurio", PASSWORD_DEFAULT),
    ]);
    $usuId = self::$pdo->lastInsertId();
    usuRolAgrega(self::$pdo, $usuId, [ROL_ID_CLIENTE,ROL_ID_ADMINISTRADOR]);
   }

   self::$pdo->commit();
  }

  return self::$pdo;
 }
}


B. api / jsonMiNav.php

<?php

function jsonMiNav(string $san, array $rolIds)
{
 $json = [
  "ocupado" => ["hidden" => true],
  "aAdmin" => [
   "hidden" => array_search(ROL_ID_ADMINISTRADOR, $rolIds, true) === false
  ],
  "aCliente" => [
   "hidden" => array_search(ROL_ID_CLIENTE, $rolIds, true) === false
  ],
  "san" => ["hidden" => $san === "", "textContent" => $san],
 ];

 return $json;
}


C. api / login.php

<?php

require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
require_once __DIR__ . "/../libservidorphp/BAD_REQUEST.php";
require_once __DIR__ . "/../libservidorphp/recibeTextoObligatorio.php";
require_once __DIR__ . "/../libservidorphp/recibeTexto.php";
require_once __DIR__ . "/../libservidorphp/devuelveJson.php";
require_once __DIR__ . "/../libservidorphp/rolIdsParaUsuId.php";
require_once __DIR__ . "/SAN.php";
require_once __DIR__ . "/USU_ID.php";
require_once __DIR__ . "/ROL_IDS.php";
require_once __DIR__ . "/Bd.php";
require_once __DIR__ . "/protegeLogin.php";
require_once __DIR__ . "/usuarioBuscaSan.php";

protegeLogin([]);

$san = recibeTextoObligatorio("san");
$sen = recibeTexto("sen");

$bd = Bd::pdo();

$usuario = usuarioBuscaSan($bd, $san);

if (
 $usuario === false
 || !password_verify(
  ($sen === false || $sen === null) ? "" : $sen,
  $usuario["USU_SEN"]
 )
)
 throw new ProblemDetailsException([
  "status" => BAD_REQUEST,
  "type" => "/errors/datosincorrectos.html",
  "title" => "Datos incorrectos.",
  "detail" => "El san y/o el sen proporcionados son incorrectos.",
 ]);

$_SESSION[SAN] = $san;
$_SESSION[USU_ID] = $usuario[USU_ID];

devuelveJson([
 SAN => $san,
 ROL_IDS => rolIdsParaUsuId($bd, $usuario[USU_ID])
]);


D. api / logout.php

<?php

require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
require_once __DIR__ . "/../libservidorphp/devuelveNoContent.php";
require_once __DIR__ . "/SAN.php";
require_once __DIR__ . "/ROL_IDS.php";

session_start();

if (isset($_SESSION[SAN])) {
 unset($_SESSION[SAN]);
}
if (isset($_SESSION[ROL_IDS])) {
 unset($_SESSION[ROL_IDS]);
}

session_destroy();

devuelveNoContent();


E. api / protege.php

<?php

require_once __DIR__ . "/../libservidorphp/NO_AUTORIZADO.php";
require_once __DIR__ . "/../libservidorphp/PROHIBIDO.php";
require_once __DIR__ . "/../libservidorphp/ProblemDetailsException.php";
require_once __DIR__ . "/../libservidorphp/rolIdsParaUsuId.php";
require_once __DIR__ . "/SAN.php";
require_once __DIR__ . "/USU_ID.php";
require_once __DIR__ . "/Bd.php";

function protege(array $rolIdsPermitidos)
{

 session_start();

 $san = isset($_SESSION[SAN]) ? $_SESSION[SAN] : "";
 $usuId = isset($_SESSION[USU_ID]) ? $_SESSION[USU_ID] : -1;
 $rolIds = rolIdsParaUsuId(Bd::pdo(), $usuId);

 if (count($rolIdsPermitidos) === 0) {

  return [$san, $rolIds, $usuId];
 } else {

  if ($san === "")
   throw new ProblemDetailsException([
    "status" => NO_AUTORIZADO,
    "type" => "/errors/noautorizado.html",
    "title" => "No autorizado.",
    "detail" => "Necesitas iniciar sesión.",
   ]);

  foreach ($rolIdsPermitidos as $rolId) {
   if (array_search($rolId, $rolIds, true) !== false) {
    return [$san, $rolIds, $usuId];
   }
  }

  throw new ProblemDetailsException([
   "status" => PROHIBIDO,
   "type" => "/errors/prohibido.html",
   "title" => "Prohibido.",
   "detail" => "No tienes roles para usar este recurso.",
  ]);
 }
}


F. api / protegeLogin.php

<?php

require_once __DIR__ . "/../libservidorphp/PROHIBIDO.php";
require_once __DIR__ . "/../libservidorphp/ProblemDetailsException.php";
require_once __DIR__ . "/protege.php";

function protegeLogin(array $rolIdsPermitidos)
{

 list($san, $rolIds, $usuId) = protege($rolIdsPermitidos);

 if ($san !== "")
  throw new ProblemDetailsException([
   "status" => PROHIBIDO,
   "type" => "/errors/sesioniniciada.html",
   "title" => "Sesión iniciada.",
   "detail" => "La sesión ya está iniciada.",
  ]);

 return [$san, $rolIds, $usuId];
}


G. api / ROL_IDS.php


1	<?php
2
3	const ROL_IDS = "rolIds";

H. api / ROL_ID_ADMINISTRADOR.php


1	<?php
2
3	const ROL_ID_ADMINISTRADOR = "Administrador";
4

I. api / ROL_ID_CLIENTE.php


1	<?php
2
3	const ROL_ID_CLIENTE = "Cliente";

J. api / saludo-cliente.php

<?php

require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
require_once __DIR__ . "/../libservidorphp/devuelveJson.php";
require_once __DIR__ . "/ROL_ID_CLIENTE.php";
require_once __DIR__ . "/protege.php";

list($san) = protege([ROL_ID_CLIENTE]);

devuelveJson("Hola $san.");


K. api / SAN.php


1	<?php
2
3	const SAN = "san";

L. api / usuarioBuscaSan.php

<?php

function usuarioBuscaSan(\PDO $bd, string $san)
{
 $usuarioBusca = $bd->prepare("SELECT * FROM USUARIO WHERE USU_SAN = :USU_SAN");
 $usuarioBusca->execute([":USU_SAN" => $san]);
 $usuario = $usuarioBusca->fetch(PDO::FETCH_ASSOC);
 return $usuario;
}


M. api / USU_ID.php


1	<?php
2
3	const USU_ID = "USU_ID";

N. api / vista-administrador.php

<?php

require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
require_once __DIR__ . "/protege.php";
require_once __DIR__ . "/../libservidorphp/devuelveJson.php";
require_once __DIR__ . "/ROL_ID_ADMINISTRADOR.php";
require_once __DIR__ . "/jsonMiNav.php";

list($san, $rolIds) = protege([ROL_ID_ADMINISTRADOR]);
devuelveJson([
 ...jsonMiNav($san, $rolIds),
 "main" => ["hidden" => false],
]);


O. api / vista-cliente.php

<?php

require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
require_once __DIR__ . "/protege.php";
require_once __DIR__ . "/../libservidorphp/devuelveJson.php";
require_once __DIR__ . "/ROL_ID_CLIENTE.php";
require_once __DIR__ . "/jsonMiNav.php";

list($san, $rolIds) = protege([ROL_ID_CLIENTE]);

devuelveJson([
 ...jsonMiNav($san, $rolIds),
 "main" => ["hidden" => false],
]);


P. api / vista-index.php

<?php

require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
require_once __DIR__ . "/protege.php";
require_once __DIR__ . "/../libservidorphp/devuelveJson.php";
require_once __DIR__ . "/jsonMiNav.php";

list($san, $rolIds) = protege([]);

devuelveJson(jsonMiNav($san, $rolIds));


Q. api / vista-login.php

<?php

require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
require_once __DIR__ . "/../libservidorphp/devuelveJson.php";
require_once __DIR__ . "/protegeLogin.php";

protegeLogin([]);

devuelveJson([
 "ocupado" => ["hidden" => true],
 "formulario" => ["hidden" =>  false],
]);


R. api / vista-perfil.php

<?php

require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
require_once __DIR__ . "/protege.php";
require_once __DIR__ . "/../libservidorphp/devuelveJson.php";
require_once __DIR__ . "/jsonMiNav.php";

list($san, $rolIds) = protege([]);

if ($san === "") {
 devuelveJson([
  ...jsonMiNav($san, $rolIds),
  "login" => ["hidden" => false],
  "outputSan" => ["value" => "No has iniciado sesión."],
  "outputRoles" => ["value" => ""],
 ]);
} else {
 devuelveJson([
  ...jsonMiNav($san, $rolIds),
  "botonLogout" => ["hidden" => false],
  "outputSan" => ["value" => $san],
  "outputRoles" => [
   "value" => count($rolIds) === 0
    ? "Sin roles."
    : implode(", ", $rolIds),
  ],
 ]);
}


1	html {
2	color-scheme: light dark;
3	font-family: system-ui;
4	display: flex;
5	align-items: center;
6	justify-content: center;
7	overflow: auto;
8	}
9
10	mi-nav nav ul {
11	display: flex;
12	flex-wrap: wrap;
13	padding: 0;
14	gap: 0.5em;
15	list-style-type: none
16	}

Q. Carpeta « js »

Versión para imprimir.

A. js / administrador.js

import { consume } from "../libclienteweb/consume.js"
import { descargaVista } from "../libclienteweb/descargaVista.js"
import { recibeJson } from "../libclienteweb/recibeJson.js"

descargaDatos()

async function descargaDatos() {
 await descargaVista("api/vista-administrador.php")
 const botonSaludo = document.querySelector("#botonSaludo")
 if (botonSaludo) {
  botonSaludo.addEventListener("click", saludo)
 }
}

async function saludo() {
 const respuesta = await consume(recibeJson('api/saludo-cliente.php'))
 const json = await respuesta.json()
 alert(json)
}


1	import { consume } from "../libclienteweb/consume.js"
2	import { descargaVista } from "../libclienteweb/descargaVista.js"
3	import { recibeJson } from "../libclienteweb/recibeJson.js"
4
5	descargaDatos()
6
7	async function descargaDatos() {
8	await descargaVista("api/vista-administrador.php")
9	const botonSaludo = document.querySelector("#botonSaludo")
10	if (botonSaludo) {
11	botonSaludo.addEventListener("click", saludo)
12	}
13	}
14
15	async function saludo() {
16	const respuesta = await consume(recibeJson('api/saludo-cliente.php'))
17	const json = await respuesta.json()
18	alert(json)
19	}
20

B. js / cliente.js

import { consume } from "../libclienteweb/consume.js"
import { descargaVista } from "../libclienteweb/descargaVista.js"
import { recibeJson } from "../libclienteweb/recibeJson.js"

descargaDatos()

async function descargaDatos() {
 await descargaVista("api/vista-cliente.php")
 const botonSaludo = document.querySelector("#botonSaludo")
 if (botonSaludo) {
  botonSaludo.addEventListener("click", saludo)
 }
}

async function saludo() {
 const respuesta = await consume(recibeJson('api/saludo-cliente.php'))
 const json = await respuesta.json()
 alert(json)
}


1	import { consume } from "../libclienteweb/consume.js"
2	import { descargaVista } from "../libclienteweb/descargaVista.js"
3	import { recibeJson } from "../libclienteweb/recibeJson.js"
4
5	descargaDatos()
6
7	async function descargaDatos() {
8	await descargaVista("api/vista-cliente.php")
9	const botonSaludo = document.querySelector("#botonSaludo")
10	if (botonSaludo) {
11	botonSaludo.addEventListener("click", saludo)
12	}
13	}
14
15	async function saludo() {
16	const respuesta = await consume(recibeJson('api/saludo-cliente.php'))
17	const json = await respuesta.json()
18	alert(json)
19	}
20

C. js / index.js


1	import { descargaVista } from "../libclienteweb/descargaVista.js"
2
3	descargaVista("api/vista-index.php")

D. js / login.js

import {
 configuraSubmitAccion
} from "../libclienteweb/configuraSubmitAccion.js"
import { descargaVista } from "../libclienteweb/descargaVista.js"

descargaDatos()

async function descargaDatos() {
 await descargaVista("api/vista-login.php")
 const formulario = document.querySelector("form")
 if (formulario) {
  configuraSubmitAccion("api/login.php", formulario, "perfil.html")
 }
}

1	import {
2	configuraSubmitAccion
3	} from "../libclienteweb/configuraSubmitAccion.js"
4	import { descargaVista } from "../libclienteweb/descargaVista.js"
5
6	descargaDatos()
7
8	async function descargaDatos() {
9	await descargaVista("api/vista-login.php")
10	const formulario = document.querySelector("form")
11	if (formulario) {
12	configuraSubmitAccion("api/login.php", formulario, "perfil.html")
13	}
14	}

E. js / perfil.js

import { consume } from "../libclienteweb/consume.js"
import { descargaVista } from "../libclienteweb/descargaVista.js"
import { recibeJson } from "../libclienteweb/recibeJson.js"

descargaDatos()

async function descargaDatos() {
 await descargaVista("api/vista-perfil.php")
 const botonLogout = document.querySelector("#botonLogout")
 if (botonLogout) {
  botonLogout.addEventListener("click", logout)
 }
}

async function logout() {
 await consume(recibeJson('api/logout.php'))
 location.reload()
}

1	import { consume } from "../libclienteweb/consume.js"
2	import { descargaVista } from "../libclienteweb/descargaVista.js"
3	import { recibeJson } from "../libclienteweb/recibeJson.js"
4
5	descargaDatos()
6
7	async function descargaDatos() {
8	await descargaVista("api/vista-perfil.php")
9	const botonLogout = document.querySelector("#botonLogout")
10	if (botonLogout) {
11	botonLogout.addEventListener("click", logout)
12	}
13	}
14
15	async function logout() {
16	await consume(recibeJson('api/logout.php'))
17	location.reload()
18	}

F. Carpeta « js / custom »

Versión para imprimir.

1. js / custom / mi-nav.js

export class MiNav extends HTMLElement {

 constructor() {
  super()
  this.cargado = false
 }

 connectedCallback() {

  this.style.display = "block"

  if (this.cargado === false) {
   this.innerHTML = /* html */
    `<nav>
      <ul>
       <li><a href="index.html">Inicio</a></li>
       <li id="ocupado"><progress max="100">Cargando…</progress></li>
       <li id="aAdmin" hidden>
        <a href="administrador.html">Para administradores</a>
       </li>
       <li id="aCliente" hidden><a href="cliente.html">Para clientes</a></li>
       <li id="san" hidden></li>
       <li id="aPerfil"><a href="perfil.html">Perfil</a></li>
      </ul>
     </nav>`

   this.cargado = true
  }
 }

}

customElements.define("mi-nav", MiNav)

1	export class MiNav extends HTMLElement {
2
3	constructor() {
4	super()
5	this.cargado = false
6	}
7
8	connectedCallback() {
9
10	this.style.display = "block"
11
12	if (this.cargado === false) {
13	this.innerHTML = /* html */
14	`<nav>
15	<ul>
16	<li><a href="index.html">Inicio</a></li>
17	<li id="ocupado"><progress max="100">Cargando…</progress></li>
18	<li id="aAdmin" hidden>
19	<a href="administrador.html">Para administradores</a>
20	</li>
21	<li id="aCliente" hidden><a href="cliente.html">Para clientes</a></li>
22	<li id="san" hidden></li>
23	<li id="aPerfil"><a href="perfil.html">Perfil</a></li>
24	</ul>
25	</nav>`
26
27	this.cargado = true
28	}
29	}
30
31	}
32
33	customElements.define("mi-nav", MiNav)

R. Carpeta « libclienteweb »

Versión para imprimir.

A. libclienteweb / configuraSubmitAccion.js

import { consume } from "./consume.js"
import { submitFormRecibeJson } from "./submitFormRecibeJson.js"

/**
 * @param {string} url
 * @param {HTMLFormElement} formulario
 * @param {string} nuevaVista
 */
export function configuraSubmitAccion(url, formulario, nuevaVista) {
 formulario.addEventListener(
  "submit",
  async event => {
   event.preventDefault()
   await consume(submitFormRecibeJson(url, formulario))
   location.href = nuevaVista
  }
 )
}

1	import { consume } from "./consume.js"
2	import { submitFormRecibeJson } from "./submitFormRecibeJson.js"
3
4	/**
5	* @param {string} url
6	* @param {HTMLFormElement} formulario
7	* @param {string} nuevaVista
8	*/
9	export function configuraSubmitAccion(url, formulario, nuevaVista) {
10	formulario.addEventListener(
11	"submit",
12	async event => {
13	event.preventDefault()
14	await consume(submitFormRecibeJson(url, formulario))
15	location.href = nuevaVista
16	}
17	)
18	}

B. libclienteweb / 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	}

C. libclienteweb / 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	}

D. libclienteweb / 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.call(this)
   .catch((/** @type {any} */ error) => {
    // Corrige un error de Chrome que evita el manejo correcto de errores.
    throw new Error(error)
   })
 }
}

window.onerror = function (
 /** @type {Event | string} */ _event,
 /** @type {string | undefined} */ _fuente,
 /** @type {number | undefined} */ _numeroDeLinea,
 /** @type {number | undefined} */ _numeroDeColumna,
 /** @type {Error | undefined} */ error
) {
 muestraError(error)
 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.call(this)
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 {Event \| string} */ _event,
22	/** @type {string \| undefined} */ _fuente,
23	/** @type {number \| undefined} */ _numeroDeLinea,
24	/** @type {number \| undefined} */ _numeroDeColumna,
25	/** @type {Error \| undefined} */ error
26	) {
27	muestraError(error)
28	return true
29	}
30
31	window.addEventListener('unhandledrejection', event => {
32	muestraError(event.reason)
33	event.preventDefault()
34	})

E. libclienteweb / muestraError.js

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

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

 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"
   }
   mensaje += problemDetails["detail"]
  }
  if (mensaje === "") {
   mensaje = "Error"
  }
  console.error(error, problemDetails)
  alert(mensaje)

 } else if (
  typeof error === "object" && error !== null && "message" in error
 ) {

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

 } else {

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

 }

}

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 { unknown } error descripción del error.
6	*/
7	export function muestraError(error) {
8
9	if (error instanceof ProblemDetailsError) {
10
11	const problemDetails = error.problemDetails
12
13	let mensaje =
14	typeof problemDetails["title"] === "string" ? problemDetails["title"] : ""
15	if (typeof problemDetails["detail"] === "string") {
16	if (mensaje !== "") {
17	mensaje += "\n"
18	}
19	mensaje += problemDetails["detail"]
20	}
21	if (mensaje === "") {
22	mensaje = "Error"
23	}
24	console.error(error, problemDetails)
25	alert(mensaje)
26
27	} else if (
28	typeof error === "object" && error !== null && "message" in error
29	) {
30
31	console.error(error)
32	alert(error.message)
33
34	} else {
35
36	console.error("Error", error)
37	alert("Error")
38
39	}
40
41	}

F. libclienteweb / 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) {
   muestraElementos(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 muestraElementos(raizHtml, nombre, definiciones) {
 const elementos = raizHtml.querySelectorAll(selectorDeNombre(nombre))
 for (let i = 0, len = elementos.length; i < len; i++) {
  /**
   * @type {any}
   */
  const elemento = elementos[i]
  if (elemento !== null) {
   for (const [propiedad, valor] of Object.entries(definiciones)) {
    if (propiedad in elemento) {
     if (propiedad === "innerHTML") {
      // @ts-ignore
      elemento["innerHTML"] = DOMPurify.sanitize(valor)
     } else {
      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	muestraElementos(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 muestraElementos(raizHtml, nombre, definiciones) {
71	const elementos = raizHtml.querySelectorAll(selectorDeNombre(nombre))
72	for (let i = 0, len = elementos.length; i < len; i++) {
73	/**
74	* @type {any}
75	*/
76	const elemento = elementos[i]
77	if (elemento !== null) {
78	for (const [propiedad, valor] of Object.entries(definiciones)) {
79	if (propiedad in elemento) {
80	if (propiedad === "innerHTML") {
81	// @ts-ignore
82	elemento["innerHTML"] = DOMPurify.sanitize(valor)
83	} else {
84	elemento[propiedad] = valor
85	}
86	} else if (
87	propiedad.length > data_Length
88	&& propiedad.startsWith(data_)
89	&& elemento instanceof HTMLElement
90	) {
91	elemento.dataset[propiedad.substring(data_Length)] = valor
92	}
93	}
94	}
95	}
96	}

G. libclienteweb / ProblemDetailsError.js

export class ProblemDetailsError extends Error {

 /**
  * Detalle de los errores devueltos por un servicio.
  * Crea una instancia de ProblemDetailsError.
  * @param {any} 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 {any} problemDetails Objeto con la descripcipon del error.
7	*/
8	constructor(problemDetails) {
9
10	super(
11	typeof problemDetails["detail"] === "string"
12	? problemDetails["detail"]
13	: (
14	typeof problemDetails["title"] === "string"
15	? problemDetails["title"]
16	: "Error"
17	)
18	)
19
20	this.problemDetails = problemDetails
21
22	}
23
24	}

H. libclienteweb / 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	}

I. libclienteweb / submitFormRecibeJson.js

/**
 * Envía los datos de un formolario a la url usando la codificación
 * multipart/form-data.
 * @param {string} url
 * @param {HTMLFormElement | FormData} formulario
 * @param { "GET" | "POST"| "PUT" | "PATCH" | "DELETE" | "TRACE" | "OPTIONS"
 *  | "CONNECT" | "HEAD" } metodoHttp
 */
export function submitFormRecibeJson(url, formulario, metodoHttp = "POST") {

 const formData =
  formulario instanceof FormData ? formulario : new FormData(formulario)

 if (tieneArchivos(formData)) {

  return fetch(
   url,
   {
    method: metodoHttp,
    headers: { "Accept": "application/json, application/problem+json" },
    body: formData
   }
  )

 } else {

  // @ts-ignore
  const params = new URLSearchParams(formData)
  const queryString = params.toString()

  return fetch(
   url,
   {
    method: metodoHttp,
    headers: {
     'Content-Type': 'application/x-www-form-urlencoded',
     "Accept": "application/json, application/problem+json"
    },
    body: queryString
   }
  )

 }

}

/**
 * @param {FormData} formData
 */
function tieneArchivos(formData) {
 for (const value of formData.values()) {
  if (value instanceof File) {
   return true
  }
 }
 return false
}

1	/**
2	* Envía los datos de un formolario a la url usando la codificación
3	* multipart/form-data.
4	* @param {string} url
5	* @param {HTMLFormElement \| FormData} formulario
6	* @param { "GET" \| "POST"\| "PUT" \| "PATCH" \| "DELETE" \| "TRACE" \| "OPTIONS"
7	* \| "CONNECT" \| "HEAD" } metodoHttp
8	*/
9	export function submitFormRecibeJson(url, formulario, metodoHttp = "POST") {
10
11	const formData =
12	formulario instanceof FormData ? formulario : new FormData(formulario)
13
14	if (tieneArchivos(formData)) {
15
16	return fetch(
17	url,
18	{
19	method: metodoHttp,
20	headers: { "Accept": "application/json, application/problem+json" },
21	body: formData
22	}
23	)
24
25	} else {
26
27	// @ts-ignore
28	const params = new URLSearchParams(formData)
29	const queryString = params.toString()
30
31	return fetch(
32	url,
33	{
34	method: metodoHttp,
35	headers: {
36	'Content-Type': 'application/x-www-form-urlencoded',
37	"Accept": "application/json, application/problem+json"
38	},
39	body: queryString
40	}
41	)
42
43	}
44
45	}
46
47	/**
48	* @param {FormData} formData
49	*/
50	function tieneArchivos(formData) {
51	for (const value of formData.values()) {
52	if (value instanceof File) {
53	return true
54	}
55	}
56	return false
57	}

S. Carpeta « libservidorphp »

Versión para imprimir.

A. libservidorphp / BAD_REQUEST.php


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

B. libservidorphp / 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();
}


C. libservidorphp / devuelveNoContent.php

<?php

function devuelveNoContent()
{
 http_response_code(204);
}


D. libservidorphp / 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"' .
  '}';
}


E. libservidorphp / INTERNAL_SERVER_ERROR.php


1	<?php
2
3	const INTERNAL_SERVER_ERROR = 500;

F. libservidorphp / 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;
 }
}


G. libservidorphp / NO_AUTORIZADO.php


1	<?php
2
3	const NO_AUTORIZADO = 401;
4

H. libservidorphp / 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;
 }
}


I. libservidorphp / PROHIBIDO.php


1	<?php
2
3	const PROHIBIDO = 403;
4

J. libservidorphp / recibeTexto.php

<?php

/**
 * Devuelve el texto de un parámetro enviado al
 * servidor por medio de GET, POST o cookie.
 * 
 * Si el parámetro no se recibe, devuelve false.
 */
function recibeTexto(string $parametro): false|string
{
 /* Si el parámetro está asignado en $_REQUEST,
  * devuelve su valor; de lo contrario, devuelve false.
  */
 $valor = isset($_REQUEST[$parametro])
  ? $_REQUEST[$parametro]
  : false;
 return $valor;
}


K. libservidorphp / recibeTextoObligatorio.php

<?php

require_once __DIR__ . "/BAD_REQUEST.php";
require_once __DIR__ . "/recibeTexto.php";
require_once __DIR__ . "/ProblemDetailsException.php";

function recibeTextoObligatorio(string $parametro)
{
 $texto = recibeTexto($parametro);

 if ($texto === false)
  throw new ProblemDetailsException([
   "status" => BAD_REQUEST,
   "title" => "Falta el valor $parametro.",
   "type" => "/errors/faltavalor.html",
   "detail" => "La solicitud no tiene el valor de $parametro."
  ]);

 $trimTexto = trim($texto);

 if ($trimTexto === "")
  throw new ProblemDetailsException([
   "status" => BAD_REQUEST,
   "title" => "Campo $parametro en blanco.",
   "type" => "/errors/campoenblanco.html",
   "detail" => "Pon texto en el campo $parametro."
  ]);

 return $trimTexto;
}


L. libservidorphp / rolAgrega.php

<?php

function rolAgrega(\PDO $bd, string $id, string $descripcion)
{
 $rolAgrega = $bd->prepare(
  "INSERT INTO ROL (
     ROL_ID, ROL_DESCRIPCION
    ) VALUES (
     :ROL_ID, :ROL_DESCRIPCION
    )"
 );
 $rolAgrega->execute([
  ":ROL_ID" => $id,
  ":ROL_DESCRIPCION" => $descripcion,
 ]);
}


M. libservidorphp / rolBusca.php

<?php

function rolBusca(\PDO $bd, string $id)
{
 $rolBusca =  $bd->prepare("SELECT * FROM ROL WHERE ROL_ID = :ROL_ID");
 $rolBusca->execute([":ROL_ID" => $id]);
 $rol = $rolBusca->fetch(PDO::FETCH_ASSOC);
 return $rol;
}


N. libservidorphp / rolIdsParaUsuId.php

<?php

function rolIdsParaUsuId(\PDO $bd, int $usuId)
{
 $stmt = $bd->prepare(
  "SELECT ROL_ID
   FROM USU_ROL
   WHERE USU_ID = :USU_ID
   ORDER BY USU_ID"
 );
 $stmt->execute([":USU_ID" => $usuId]);
 $rolIds = $stmt->fetchAll(PDO::FETCH_COLUMN, 0);
 return $rolIds;
}


O. libservidorphp / usuRolAgrega.php

<?php

function usuRolAgrega(\PDO $bd, string $usuId, array $rolIds)
{
 $usuRolAgrega = $bd->prepare(
  "INSERT INTO USU_ROL (USU_ID, ROL_ID) values (:USU_ID, :ROL_ID)"
 );
 foreach ($rolIds as $rolId) {
  $usuRolAgrega->execute([
   ":USU_ID" => $usuId,
   ":ROL_ID" => $rolId,
  ]);
 }
}


T. Carpeta « errors »

Versión para imprimir.

A. errors / campoenblanco.html

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

<head>

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

 <title>Campo en blanco</title>

</head>

<body>

 <h1>Campo en blanco</h1>

 <p>Pon texto en el campo obligatorio que está en blanco.</p>

</body>

</html>

B. errors / datosincorrectos.html

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

<head>

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

 <title>Datos incorrectos</title>

</head>

<body>

 <h1>Datos incorrectos</h1>

 <p>El san y/o el sen proporcionados son incorrectos.</p>
</body>

</html>

C. errors / errorinterno.html

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

<head>

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

 <title>Error interno del servidor</title>

</head>

<body>

 <h1>Error interno del servidor</h1>

 <p>Se presentó de forma inesperada un error interno del servidor.</p>

</body>

</html>

D. errors / faltavalor.html

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

<head>

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

 <title>Falta un valor</title>

</head>

<body>

 <h1>Falta un valor</h1>

 <p>La solicitud no tiene un valor obligatorio.</p>

</body>

</html>

E. errors / noautorizado.html

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

<head>

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

 <title>No autorizado</title>

</head>

<body>

 <h1>No autorizado</h1>

 <p>Necesitas iniciar sesión.</p>

</body>

</html>

F. errors / prohibido.html

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

<head>

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

 <title>Prohibido</title>

</head>

<body>

 <h1>Prohibido</h1>

 <p>No tienes roles para usar este recurso.</p>

</body>

</html>

G. errors / resultadonojson.html

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

<head>

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

 <title>El resultado no puede representarse como JSON</title>

</head>

<body>

 <h1>El resultado no puede representarse como JSON</h1>

 <p>
  Debido a un error interno del servidor, el resultado generado, no se puede
  recuperar.
 </p>

</body>

</html>

H. errors / sesioniniciada.html

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

<head>

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

 <title>Sesión iniciada</title>

</head>

<body>

 <h1>Sesión iniciada</h1>

 <p>La sesión ya está iniciada.</p>

</body>

</html>

V. Carpeta « dompurify »

Versión para imprimir.

A. dompurify / purify.min.js


1	/! @license DOMPurify 3.4.1 \| (c) Cure53 and other contributors \| Released under the Apache license 2.0 and Mozilla Public License 2.0 \| github.com/cure53/DOMPurify/blob/3.4.1/LICENSE /
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3	//# sourceMappingURL=purify.min.js.map
4

B. dompurify / purify.min.js.map

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1	<?php
2
3	require_once __DIR__ . "/ROL_ID_CLIENTE.php";
4	require_once __DIR__ . "/ROL_ID_ADMINISTRADOR.php";
5	require_once __DIR__ . "/../libservidorphp/rolBusca.php";
6	require_once __DIR__ . "/../libservidorphp/rolAgrega.php";
7	require_once __DIR__ . "/../libservidorphp/usuRolAgrega.php";
8	require_once __DIR__ . "/usuarioBuscaSan.php";
9
10	class Bd
11	{
12
13	private static ?PDO $pdo = null;
14
15	static function pdo(): PDO
16	{
17	if (self::$pdo === null) {
18
19	self::$pdo = new PDO(
20	// cadena de conexión
21	"sqlite:" . __DIR__ . "/srvaut.db",
22	// usuario
23	null,
24	// contraseña
25	null,
26	// Opciones: pdos no persistentes y lanza excepciones.
27	[PDO::ATTR_PERSISTENT => false, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
28	);
29
30	self::$pdo->exec(
31	'CREATE TABLE IF NOT EXISTS USUARIO (
32	USU_ID INTEGER,
33	USU_SAN TEXT NOT NULL,
34	USU_SEN TEXT NOT NULL,
35	CONSTRAINT USU_PK
36	PRIMARY KEY(USU_ID),
37	CONSTRAINT USU_SAN_UNQ
38	UNIQUE(USU_SAN),
39	CONSTRAINT USU_SAN_NV
40	CHECK(LENGTH(USU_SAN) > 0)
41	)'
42	);
43	self::$pdo->exec(
44	'CREATE TABLE IF NOT EXISTS ROL (
45	ROL_ID TEXT NOT NULL,
46	ROL_DESCRIPCION TEXT NOT NULL,
47	CONSTRAINT ROL_PK
48	PRIMARY KEY(ROL_ID),
49	CONSTRAINT ROL_ID_NV
50	CHECK(LENGTH(ROL_ID) > 0),
51	CONSTRAINT ROL_DESCR_UNQ
52	UNIQUE(ROL_DESCRIPCION),
53	CONSTRAINT ROL_DESCR_NV
54	CHECK(LENGTH(ROL_DESCRIPCION) > 0)
55	)'
56	);
57	self::$pdo->exec(
58	'CREATE TABLE IF NOT EXISTS USU_ROL (
59	USU_ID INTEGER NOT NULL,
60	ROL_ID TEXT NOT NULL,
61	CONSTRAINT USU_ROL_PK
62	PRIMARY KEY(USU_ID, ROL_ID),
63	CONSTRAINT USU_ROL_USU_FK
64	FOREIGN KEY (USU_ID) REFERENCES USUARIO(USU_ID),
65	CONSTRAINT USU_ROL_ROL_FK
66	FOREIGN KEY (ROL_ID) REFERENCES ROL(ROL_ID)
67	)'
68	);
69
70	self::$pdo->beginTransaction();
71
72	if (rolBusca(self::$pdo, "Administrador") === false) {
73	rolAgrega(
74	bd: self::$pdo,
75	id: "Administrador",
76	descripcion: "Administra el sistema."
77	);
78	}
79
80	if (rolBusca(self::$pdo, "Cliente") === false) {
81	rolAgrega(
82	bd: self::$pdo,
83	id: "Cliente",
84	descripcion: "Realiza compras."
85	);
86	}
87
88	$usuarioAgrega = self::$pdo->prepare(
89	"INSERT INTO USUARIO (
90	USU_SAN, USU_SEN
91	) VALUES (
92	:USU_SAN, :USU_SEN
93	)"
94	);
95
96	if (usuarioBuscaSan(self::$pdo, "pepito") === false) {
97	$usuarioAgrega->execute([
98	":USU_SAN" => "pepito",
99	":USU_SEN" => password_hash("cuentos", PASSWORD_DEFAULT),
100	]);
101	$usuId = self::$pdo->lastInsertId();
102	usuRolAgrega(self::$pdo, $usuId, [ROL_ID_CLIENTE]);
103	}
104
105	if (usuarioBuscaSan(self::$pdo, "susana") === false) {
106	$usuarioAgrega->execute([
107	":USU_SAN" => "susana",
108	":USU_SEN" => password_hash("alegria", PASSWORD_DEFAULT),
109	]);
110	$usuId = self::$pdo->lastInsertId();
111	usuRolAgrega(self::$pdo, $usuId, [ROL_ID_ADMINISTRADOR]);
112	}
113
114	if (usuarioBuscaSan(self::$pdo, "bebe") === false) {
115	$usuarioAgrega->execute([
116	":USU_SAN" => "bebe",
117	":USU_SEN" => password_hash("saurio", PASSWORD_DEFAULT),
118	]);
119	$usuId = self::$pdo->lastInsertId();
120	usuRolAgrega(self::$pdo, $usuId, [ROL_ID_CLIENTE,ROL_ID_ADMINISTRADOR]);
121	}
122
123	self::$pdo->commit();
124	}
125
126	return self::$pdo;
127	}
128	}
129

1	<?php
2
3	function jsonMiNav(string $san, array $rolIds)
4	{
5	$json = [
6	"ocupado" => ["hidden" => true],
7	"aAdmin" => [
8	"hidden" => array_search(ROL_ID_ADMINISTRADOR, $rolIds, true) === false
9	],
10	"aCliente" => [
11	"hidden" => array_search(ROL_ID_CLIENTE, $rolIds, true) === false
12	],
13	"san" => ["hidden" => $san === "", "textContent" => $san],
14	];
15
16	return $json;
17	}
18

1	<?php
2
3	function usuarioBuscaSan(\PDO $bd, string $san)
4	{
5	$usuarioBusca = $bd->prepare("SELECT * FROM USUARIO WHERE USU_SAN = :USU_SAN");
6	$usuarioBusca->execute([":USU_SAN" => $san]);
7	$usuario = $usuarioBusca->fetch(PDO::FETCH_ASSOC);
8	return $usuario;
9	}
10

1	<?php
2
3	require_once __DIR__ . "/../libservidorphp/manejaErrores.php";
4	require_once __DIR__ . "/protege.php";
5	require_once __DIR__ . "/../libservidorphp/devuelveJson.php";
6	require_once __DIR__ . "/ROL_ID_ADMINISTRADOR.php";
7	require_once __DIR__ . "/jsonMiNav.php";
8
9	list($san, $rolIds) = protege([ROL_ID_ADMINISTRADOR]);
10	devuelveJson([
11	...jsonMiNav($san, $rolIds),
12	"main" => ["hidden" => false],
13	]);
14

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	/**
4	* Devuelve 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 recibeTexto(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

1	<?php
2
3	require_once __DIR__ . "/BAD_REQUEST.php";
4	require_once __DIR__ . "/recibeTexto.php";
5	require_once __DIR__ . "/ProblemDetailsException.php";
6
7	function recibeTextoObligatorio(string $parametro)
8	{
9	$texto = recibeTexto($parametro);
10
11	if ($texto === false)
12	throw new ProblemDetailsException([
13	"status" => BAD_REQUEST,
14	"title" => "Falta el valor $parametro.",
15	"type" => "/errors/faltavalor.html",
16	"detail" => "La solicitud no tiene el valor de $parametro."
17	]);
18
19	$trimTexto = trim($texto);
20
21	if ($trimTexto === "")
22	throw new ProblemDetailsException([
23	"status" => BAD_REQUEST,
24	"title" => "Campo $parametro en blanco.",
25	"type" => "/errors/campoenblanco.html",
26	"detail" => "Pon texto en el campo $parametro."
27	]);
28
29	return $trimTexto;
30	}
31

1	<?php
2
3	function rolAgrega(\PDO $bd, string $id, string $descripcion)
4	{
5	$rolAgrega = $bd->prepare(
6	"INSERT INTO ROL (
7	ROL_ID, ROL_DESCRIPCION
8	) VALUES (
9	:ROL_ID, :ROL_DESCRIPCION
10	)"
11	);
12	$rolAgrega->execute([
13	":ROL_ID" => $id,
14	":ROL_DESCRIPCION" => $descripcion,
15	]);
16	}
17

1	<?php
2
3	function rolBusca(\PDO $bd, string $id)
4	{
5	$rolBusca = $bd->prepare("SELECT * FROM ROL WHERE ROL_ID = :ROL_ID");
6	$rolBusca->execute([":ROL_ID" => $id]);
7	$rol = $rolBusca->fetch(PDO::FETCH_ASSOC);
8	return $rol;
9	}
10

1	<?php
2
3	function rolIdsParaUsuId(\PDO $bd, int $usuId)
4	{
5	$stmt = $bd->prepare(
6	"SELECT ROL_ID
7	FROM USU_ROL
8	WHERE USU_ID = :USU_ID
9	ORDER BY USU_ID"
10	);
11	$stmt->execute([":USU_ID" => $usuId]);
12	$rolIds = $stmt->fetchAll(PDO::FETCH_COLUMN, 0);
13	return $rolIds;
14	}
15

1	<?php
2
3	function usuRolAgrega(\PDO $bd, string $usuId, array $rolIds)
4	{
5	$usuRolAgrega = $bd->prepare(
6	"INSERT INTO USU_ROL (USU_ID, ROL_ID) values (:USU_ID, :ROL_ID)"
7	);
8	foreach ($rolIds as $rolId) {
9	$usuRolAgrega->execute([
10	":USU_ID" => $usuId,
11	":ROL_ID" => $rolId,
12	]);
13	}
14	}
15

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	}

22. Autenticación

A. Introducción

B. Diagrama entidad relación

C. Diagrama relacional

D. Diagrama de despliegue

E. Hazlo funcionar (con videos)

F. Hazlo funcionar (texto)

G. Archivos

H. index.html

I. perfil.html

J. login.html

K. administrador.html

L. cliente.html

M. .htaccess

N. favicon.ico

O. Carpeta « api »

A. api / Bd.php

B. api / jsonMiNav.php

C. api / login.php

D. api / logout.php

E. api / protege.php

F. api / protegeLogin.php

G. api / ROL_IDS.php

H. api / ROL_ID_ADMINISTRADOR.php

I. api / ROL_ID_CLIENTE.php

J. api / saludo-cliente.php

K. api / SAN.php

L. api / usuarioBuscaSan.php

M. api / USU_ID.php

N. api / vista-administrador.php

O. api / vista-cliente.php

P. api / vista-index.php

Q. api / vista-login.php

R. api / vista-perfil.php

P. Carpeta « css »

A. css / estilos.css

Q. Carpeta « js »

A. js / administrador.js

B. js / cliente.js

C. js / index.js

D. js / login.js

E. js / perfil.js

F. Carpeta « js / custom »

1. js / custom / mi-nav.js

R. Carpeta « libclienteweb »

A. libclienteweb / configuraSubmitAccion.js

B. libclienteweb / consume.js

C. libclienteweb / descargaVista.js

D. libclienteweb / manejaErrores.js

E. libclienteweb / muestraError.js

F. libclienteweb / muestraObjeto.js

G. libclienteweb / ProblemDetailsError.js

H. libclienteweb / recibeJson.js

I. libclienteweb / submitFormRecibeJson.js

S. Carpeta « libservidorphp »

A. libservidorphp / BAD_REQUEST.php

B. libservidorphp / devuelveJson.php

C. libservidorphp / devuelveNoContent.php

D. libservidorphp / devuelveResultadoNoJson.php

E. libservidorphp / INTERNAL_SERVER_ERROR.php

F. libservidorphp / manejaErrores.php

G. libservidorphp / NO_AUTORIZADO.php

H. libservidorphp / ProblemDetailsException.php

I. libservidorphp / PROHIBIDO.php

J. libservidorphp / recibeTexto.php

K. libservidorphp / recibeTextoObligatorio.php

L. libservidorphp / rolAgrega.php

M. libservidorphp / rolBusca.php

N. libservidorphp / rolIdsParaUsuId.php

O. libservidorphp / usuRolAgrega.php

T. Carpeta « errors »

A. errors / campoenblanco.html

B. errors / datosincorrectos.html

C. errors / errorinterno.html

D. errors / faltavalor.html

E. errors / noautorizado.html

F. errors / prohibido.html

G. errors / resultadonojson.html

H. errors / sesioniniciada.html

U. jsconfig.json