andros/example-php-contact-form
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Andros Fenollosa 2021-06-24 15:14:25 +02:00
commit fc3784f861
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8
composer.json Normal file
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{
"require": {
"phpmailer/phpmailer": "^6.4",
"sendgrid/sendgrid": "^7.9",
"fzaninotto/faker": "^1.9",
"twig/twig": "^3.0"
}
}

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contacto.php Normal file
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<?php
require_once('contactoModel.php');
?>
<!doctype html>
<html lang="es">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Contacto</title>
<style>
.contacto__error {
color: red;
}
.contacto__enviado {
color: green;
}
</style>
</head>
<body>
<main>
<h1>Formulario de contacto</h1>
<section class="contacto">
<form method="post" novalidate>
<p>
<label>
Nombre
<input type="text" name="nombre" value="<?= $nombre ?>">
</label>
</p>
<?php if (isPost() && !validarObligatorio($nombre)): ?>
<p class="contacto__error">
Campo obligatorio
</p>
<?php endif; ?>
<p>
<label>
E-mail
<input type="email" name="email" value="<?= $email ?>">
</label>
</p>
<?php if (isPost() && !validarObligatorio($email)): ?>
<p class="contacto__error">
Campo obligatorio
</p>
<?php endif; ?>
<?php if (isPost() && !validarFormatoEmail($email)): ?>
<p class="contacto__error">
Formato no valido
</p>
<?php endif; ?>
<p>
<label>
Mensaje
<textarea name="mensaje"><?= $mensaje ?></textarea>
</label>
</p>
<?php if (isPost() && !validarObligatorio($mensaje)): ?>
<p class="contacto__error">
Campo obligatorio
</p>
<?php endif; ?>
<?php if (isPost() && !validarLetrasMaximas($mensaje, 20)): ?>
<p class="contacto__error">
Debe tener mas de 20 caracteres
</p>
<?php endif; ?>
<p>
<input type="checkbox" name="acepto"<?= $acepto ? ' checked': '' ?>> Acepto que rastres y vendas mis datos
</p>
<?php if (isPost() && !$acepto): ?>
<p class="contacto__error">
Debes aceptar nuestras condiciones
</p>
<?php endif; ?>
<?php if ($validado): ?>
<p class="contacto__enviado">
Enviado con exito
</p>
<?php endif; ?>
<p>
<button type="submit">Enviar</button>
</p>
</form>
</section>
</main>
</body>
</html>

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contactoModel.php Normal file
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<?php
//======================================================================
// LIBRERIAS
//======================================================================
require_once('vendor/autoload.php');
//======================================================================
// VARIABLES
//======================================================================
// Campos
$nombre = isset($_REQUEST['nombre']) ? $_REQUEST['nombre'] : '';
$email = isset($_REQUEST['email']) ? $_REQUEST['email'] : '';
$acepto = isset($_REQUEST['acepto']);
$mensaje = isset($_REQUEST['mensaje']) ? $_REQUEST['mensaje'] : '';
$validado = isPost() &&
validarObligatorio($nombre) &&
validarObligatorio($email) &&
validarFormatoEmail($email) &&
validarObligatorio($mensaje) &&
validarLetrasMaximas($mensaje, 20) &&
$acepto;
//======================================================================
// FUNCIONES
//======================================================================
/**
* Comprueba si estamos recibiendo el verbo POST
* @return bool
*/
function isPost(): bool
{
return isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] === 'POST' : false;
}
/**
* Genera un string aleatorio
* @param int $length
* @return string
*/
function generateRandomString(int $length = 20): string
{
return substr(str_shuffle("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, $length);
}
/**
* Valida que exista el valor
* @param string $campo
* @return bool
*/
function validarObligatorio(string $campo): bool
{
return $campo !== '';
}
/**
* Valida que tenga un formato de email
* @param string $campo
* @return bool
*/
function validarFormatoEmail(string $campo): bool
{
// Extension one letter> boo@foo.a
if (filter_var($campo, FILTER_VALIDATE_EMAIL)) {
$emailSeparadoExtension = explode('.', $campo);
if (count($emailSeparadoExtension) === 2
&& strlen($emailSeparadoExtension[1]) < 2) {
return false;
}
}
// Otros
return filter_var($campo, FILTER_VALIDATE_EMAIL);
}
/**
* Valida que $texto no supere $limite
* @param string $texto
* @param int $limite
* @return bool
*/
function validarLetrasMaximas(string $texto, int $limite): bool
{
return strlen(trim($texto)) <= $limite;
}
//======================================================================
// INICIO
//======================================================================
// Envia el correo si al informacion es correcta
if ($validado) {
// Generamos las plantillas
$loader = new \Twig\Loader\FilesystemLoader('templates');
$twig = new \Twig\Environment($loader);
$variablesEmail = [
'nombre' => $nombre,
'email' => $email,
'mensaje' => $mensaje
];
$plantillaPlana = $twig->render('contacto.txt', $variablesEmail);
$plantillaHTML = $twig->render('contacto.html', $variablesEmail);
// Enviamos email
$emailSendGrid = new \SendGrid\Mail\Mail();
$emailSendGrid->setFrom("andros@fenollosa.email", "Web");
$emailSendGrid->setSubject("Contacto desde mi web");
$emailSendGrid->addTo("andros@fenollosa.email", "Yo");
$emailSendGrid->addContent("text/plain", $plantillaPlana);
$emailSendGrid->addContent( "text/html", $plantillaHTML);
$sendgrid = new \SendGrid(getenv('SENDGRID_API_KEY'));
try {
$response = $sendgrid->send($emailSendGrid);
} catch (Exception $e) {
echo 'Caught exception: ' . $e->getMessage() . "\n";
}
}

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contactoTest.php Normal file
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<?php
use PHPUnit\Framework\TestCase;
require_once('vendor/autoload.php');
require_once('contactoModel.php');
class ContactoTest extends TestCase
{
public function testObligatorio(): void
{
$this->assertSame(true, validarObligatorio('texto'), "Validador obligatorio no reconoce 'texto'");
$this->assertSame(false, validarObligatorio(''), "Validador obligatorio no reconoce ''");
}
public function testFormatoEmail(): void
{
// Buenos
$miFaker = Faker\Factory::create();
foreach (range(0, 50) as $pos) {
$tempEmail = $miFaker->email;
$this->assertSame(true, validarFormatoEmail($tempEmail), "Validador email $tempEmail valido");
}
// Malos
$this->assertSame(false, validarFormatoEmail('@correo'), "Validador falso email");
$this->assertSame(false, validarFormatoEmail('@correo.com'), "Validador falso email");
$this->assertSame(false, validarFormatoEmail('mi@correo'), "Validador falso email");
$this->assertSame(false, validarFormatoEmail('micorreo'), "Validador falso email");
$this->assertSame(false, validarFormatoEmail('micorreo@ff.e'), "Validador falso email");
$this->assertSame(false, validarFormatoEmail('micorreo@f-f.e'), "Validador falso email");
}
public function testLetrasMaximas(): void
{
// Funciona - Limite 20 con caracteres de 0 a 20
foreach (range(0, 20) as $pos) {
$tempText = generateRandomString($pos);
$this->assertSame(true, validarLetrasMaximas($tempText, 20), "Validador limite $pos maximo '$tempText'");
}
// No funciona - Limite 20 con caracteres de 21 a 40
foreach (range(21, 40) as $pos) {
$tempText = generateRandomString($pos);
$this->assertSame(false, validarLetrasMaximas($tempText, 20), "Validador limite $pos maximo '$tempText'");
}
}
}

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index.php Normal file
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<?php
require 'vendor/autoload.php';
$email = new \SendGrid\Mail\Mail();
$email->setFrom("andros@fenollosa.email", "Example User");
$email->setSubject("Sending with SendGrid is Fun");
$email->addTo("andros@fenollosa.email", "Example User");
$email->addContent("text/plain", "and easy to do anywhere, even with PHP");
$email->addContent(
"text/html", "<strong>and easy to do anywhere, even with PHP</strong>"
);
$sendgrid = new \SendGrid(getenv('SENDGRID_API_KEY'));
try {
$response = $sendgrid->send($email);
print $response->statusCode() . "\n";
print_r($response->headers());
print $response->body() . "\n";
} catch (Exception $e) {
echo 'Caught exception: ' . $e->getMessage() . "\n";
}

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templates/contacto.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Contacto</title>
</head>
<body>
<h1>Nuevo mensaje</h1>
<p><strong>Nombre</strong>: {{ nombre }}</p>
<p><strong>Email</strong>: {{ email }}</p>
<p><strong>Mensaje</strong>: {{ mensaje }}</p>
<hr>
<p><a href="mailto:{{ email }}">Escribirle</a></p>
<p>Gracias</p>
</body>
</html>

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templates/contacto.txt Normal file
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Mensaje de {{ nombre }} con el email {{ email }} y el mensaje es: {{ mensaje }}