servnest/pages/ht/add-http-dns.php

<?php

if (isset($_SESSION['username']))
	$dirsStatuses = dirsStatuses($_SESSION['username'], 'dns', 'http');
else
	$dirsStatuses = [];

if (processForm()) {
	$_POST['domain'] = formatDomain($_POST['domain']);

	if ($dirsStatuses[$_POST['dir']] !== false)
		output(403, 'Wrong value for <code>dir</code>.');

	if (query('select', 'sites', ['domain' => $_POST['domain']], 'domain') !== [])
		output(403, 'Ce domaine existe déjà sur ce service.');

	$remoteAaaaRecords = dns_get_record($_POST['domain'], DNS_AAAA);
	if (is_array($remoteAaaaRecords) !== true)
		output(500, 'Erreur lors de la récupération de l\'enregistrement AAAA.');
	if (equalArrays([CONF['ht']['ipv6_address']], array_column($remoteAaaaRecords, 'ipv6')) !== true)
		output(403, 'Ce domaine doit avoir pour unique enregistrement AAAA <code>' . CONF['ht']['ipv6_address'] . '</code>.');

	$remoteARecords = dns_get_record($_POST['domain'], DNS_A);
	if (is_array($remoteARecords) !== true)
		output(500, 'Erreur lors de la récupération de l\'enregistrement A.');
	if (equalArrays([CONF['ht']['ipv4_address']], array_column($remoteARecords, 'ip')) !== true)
		output(403, 'Ce domaine doit avoir pour unique enregistrement A <code>' . CONF['ht']['ipv4_address'] . '</code>.');

	$remoteTXTRecords = dns_get_record($_POST['domain'], DNS_TXT);
	if (is_array($remoteTXTRecords) !== true)
		output(500, 'Erreur lors de la récupération de l\'enregistrement TXT.');
	if (preg_match('/^auth-owner=([0-9a-f]{8})-([0-9a-f]{32})$/m', implode(LF, array_column($remoteTXTRecords, 'txt')), $matches) !== 1)
		output(403, 'Aucun enregistrement TXT au format correct trouvé.');

	checkAuthToken($matches[1], $matches[2]);

	rateLimit();

	addSite($_SESSION['username'], $_POST['dir'], $_POST['domain'], 'dns', 'http');

	exec('2>&1 ' . CONF['ht']['sudo_path'] . ' ' . CONF['ht']['certbot_path'] . ' certonly' . (($_SESSION['type'] === 'trusted') ? '' : ' --test-cert') . ' --key-type rsa --rsa-key-size 3072 --webroot --webroot-path /srv/niver/acme --domain ' . $_POST['domain'], $output, $returnCode);
	if ($returnCode !== 0)
		output(500, 'Certbot failed to get a Let\'s Encrypt certificate.', $output);

	$nginxConf = 'server {
	listen [' . CONF['ht']['ipv6_listen_address'] . ']:' . CONF['ht']['https_port'] . ' ssl http2;
	listen ' . CONF['ht']['ipv4_listen_address'] . ':' . CONF['ht']['https_port'] . ' ssl http2;
	server_name ' . $_POST['domain'] . ';
	root ' . CONF['ht']['ht_path'] . '/' . $_SESSION['username'] . '/' . $_POST['dir'] . ';

	ssl_certificate /etc/letsencrypt/live/' . $_POST['domain'] . '/fullchain.pem;
	ssl_certificate_key /etc/letsencrypt/live/' . $_POST['domain'] . '/privkey.pem;

	include inc/ht-tls.conf;
}
';
	if (file_put_contents(CONF['ht']['nginx_config_path'] . '/' . $_POST['domain'] . '.conf', $nginxConf) === false)
		output(500, 'Failed to write Nginx configuration.');

	// Reload Nginx
	exec(CONF['ht']['sudo_path'] . ' ' . CONF['ht']['systemctl_path'] . ' reload nginx', result_code: $code);
	if ($code !== 0)
		output(500, 'Failed to reload Nginx.');

	output(200, 'Accès HTTP par domaine ajouté sur ce dossier !');
}

$proof = getAuthToken();

?>

<p>
	Ajouter sur un dossier de site un accès <?= linkToDocs('http', 'HTTP') ?> par <?= linkToDocs('dns', 'DNS') ?> et <?= linkToDocs('tls', 'TLS') ?> <?= linkToDocs('ca', 'authentifié par <em>Let\'s Encrypt</em>') ?>.
</p>

<p>
	La présence des enregistrements ci-après sera vérifiée lors du traitement de ce formulaire.
</p>

<dl>
	<dt><code>AAAA</code></dt>
	<dd>
		<code><?= CONF['ht']['ipv6_address'] ?></code>
	</dd>
	<dt><code>A</code></dt>
	<dd>
		<code><?= CONF['ht']['ipv4_address'] ?></code>
	</dd>
	<dt><code>TXT</code></dt>
	<dd>
		<code>auth-owner=<?= $proof ?></code>
	</dd>
</dl>

<form method="post">
	<label for="domain">Domaine sur lequel répondre</label><br>
	<input required="" placeholder="site.<?= PLACEHOLDER_DOMAIN ?>" id="domain" name="domain" type="text"><br>
	<label for="dir">Dossier ciblé</label><br>
	<select required="" name="dir" id="dir">
		<option value="" disabled="" selected="">---</option>
<?php
foreach ($dirsStatuses as $dir => $alreadyEnabled)
	echo '		<option' . ($alreadyEnabled ? ' disabled=""' : '') . ' value="' . $dir . '">' . $dir . '</option>' . LF;
?>
	</select>
	<br>
	<input value="Valider" type="submit">
</form>