Use single quotes instead of double quotes

README.md

@@ -12,7 +12,7 @@ Niver is a set of 3 network services:
 
 ## Status
 
-I plan to create and maintain a public stable instance of Niver, but I haven't done so yet. Thus Niver is not yet tested with real world and long-term usages, and **should be considered alpha software**.
+I plan to create and maintain a public stable instance of Niver, but I haven't done so yet. Thus Niver is not yet tested with real world and long-term usages, and is **alpha software**.
 
 ## Detailed features
 

fn/auth.php

@@ -9,18 +9,18 @@ const PLACEHOLDER_PASSWORD = '••••••••••••••••
 // Password storage security
 const ALGO_PASSWORD = PASSWORD_ARGON2ID;
 const OPTIONS_PASSWORD = [
-	"memory_cost" => 65536,
-	"time_cost" => 4,
-	"threads" => 64,
+	'memory_cost' => 65536,
+	'time_cost' => 4,
+	'threads' => 64,
 ];
 
 function checkPasswordFormat($password) {
-	if (preg_match("/" . PASSWORD_REGEX . "/u", $password) !== 1)
+	if (preg_match('/' . PASSWORD_REGEX . '/u', $password) !== 1)
 		output(403, 'Password malformed.');
 }
 
 function checkUsernameFormat($username) {
-	if (preg_match("/" . USERNAME_REGEX . "/u", $username) !== 1)
+	if (preg_match('/' . USERNAME_REGEX . '/u', $username) !== 1)
 		output(403, 'Username malformed.');
 }
 
@@ -43,7 +43,7 @@ function outdatedPasswordHash($username) {
 function changePassword($username, $password) {
 	$db = new PDO('sqlite:' . DB_PATH);
 
-	$stmt = $db->prepare("UPDATE users SET password = :password WHERE username = :username");
+	$stmt = $db->prepare('UPDATE users SET password = :password WHERE username = :username');
 
 	$stmt->bindValue(':username', $username);
 	$stmt->bindValue(':password', hashPassword($password));
@@ -75,7 +75,7 @@ function rateLimitAccount($requestedTokens) {
 
 	// Update
 	$db = new PDO('sqlite:' . DB_PATH);
-	$stmt = $db->prepare("UPDATE users SET bucket_tokens = :bucket_tokens, bucket_last_update = :bucket_last_update WHERE username = :username");
+	$stmt = $db->prepare('UPDATE users SET bucket_tokens = :bucket_tokens, bucket_last_update = :bucket_last_update WHERE username = :username');
 	$stmt->bindValue(':username', $_SESSION['username']);
 	$stmt->bindValue(':bucket_tokens', $tokens);
 	$stmt->bindValue(':bucket_last_update', time());

fn/common.php

@@ -6,13 +6,13 @@ function output($code, $msg = '', $logs = ['']) {
 	global $final_message;
 	$shortCode = $code / 100 % 10;
 	$final_message = match ($shortCode) {
-		2 => ($msg === '') ? '' : "<p><output><strong>Succès</strong> : <em>" . $msg . "</em></output></p>\n",
-		4 => "<p><output><strong>Erreur utilisataire</strong> : <em>" . $msg . "</em></output></p>\n",
-		5 => "<p><output><strong>Server error</strong>: The server encountered an error: <em>" . $msg . "</em></output></p>\n",
+		2 => ($msg === '') ? '' : '<p><output><strong>Succès</strong> : <em>' . $msg . '</em></output></p>' . LF,
+		4 => '<p><output><strong>Erreur utilisataire</strong> : <em>' . $msg . '</em></output></p>' . LF,
+		5 => '<p><output><strong>Server error</strong>: The server encountered an error: <em>' . $msg . '</em></output></p>' . LF,
 	};
 	http_response_code($code);
 	if ($shortCode === 5)
-		error_log("Niver internal error: " . strip_tags($msg) . implode("\n", $logs));
+		error_log('Niver internal error: ' . strip_tags($msg) . implode(LF, $logs));
 	if ($code !== 200)
 		executePage();
 }
@@ -39,14 +39,14 @@ function insert($table, $values) {
 			$query .= "$key, ";
 	}
 
-	$query .= ") VALUES(";
+	$query .= ') VALUES(';
 	foreach ($values as $key => $val) {
 		if ($key === array_key_last($values))
 			$query .= ":$key";
 		else
 			$query .= ":$key, ";
 	}
-	$query .= ")";
+	$query .= ')';
 
 	$db = new PDO('sqlite:' . DB_PATH);
 
@@ -65,7 +65,7 @@ function query($action, $table, $conditions = [], $column = NULL) {
 		'delete' => 'DELETE',
 	};
 
-	$query .= " FROM $table";
+	$query .= ' FROM ' . $table;
 
 	foreach ($conditions as $key => $val) {
 		if ($key === array_key_first($conditions))

fn/dns.php

@@ -1,21 +1,21 @@
 <?php
 
 function knotcConfExec($cmds) {
-	exec(CONF['dns']['knotc_path'] . " conf-begin", $output['begin'], $code['begin']);
+	exec(CONF['dns']['knotc_path'] . ' conf-begin', $output['begin'], $code['begin']);
 	if ($code['begin'] !== 0)
 		output(500, 'knotcConfExec: <code>knotc</code> failed with exit code <samp>' . $code['begin'] . '</samp>: <samp>' . $output['begin'][0] . '</samp>.');
 
 	foreach ($cmds as $cmd) {
-		exec(CONF['dns']['knotc_path'] . " conf-" . $cmd, $output['op'], $code['op']);
+		exec(CONF['dns']['knotc_path'] . ' conf-' . $cmd, $output['op'], $code['op']);
 		if ($code['op'] !== 0) {
-			exec(CONF['dns']['knotc_path'] . " conf-abort");
+			exec(CONF['dns']['knotc_path'] . ' conf-abort');
 			output(500, 'knotcConfExec: <code>knotc</code> failed with exit code <samp>' . $code['op'] . '</samp>: <samp>' . $output['op'][0] . '</samp>.');
 		}
 	}
 
-	exec(CONF['dns']['knotc_path'] . " conf-commit", $output['commit'], $code['commit']);
+	exec(CONF['dns']['knotc_path'] . ' conf-commit', $output['commit'], $code['commit']);
 	if ($code['commit'] !== 0) {
-		exec(CONF['dns']['knotc_path'] . " conf-abort");
+		exec(CONF['dns']['knotc_path'] . ' conf-abort');
 		output(500, 'knotcConfExec: <code>knotc</code> failed with exit code <samp>' . $code['commit'] . '</samp>: <samp>' . $output['commit'][0] . '</samp>.');
 	}
 }
@@ -23,34 +23,34 @@ function knotcConfExec($cmds) {
 function knotcZoneExec($zone, $cmd) {
 	$action = checkAction($_POST['action']);
 
-	exec(CONF['dns']['knotc_path'] . " zone-begin " . $zone, $output['begin'], $code['begin']);
+	exec(CONF['dns']['knotc_path'] . ' zone-begin ' . $zone, $output['begin'], $code['begin']);
 	if ($code['begin'] !== 0)
 		output(500, 'knotcZoneExec: <code>knotc</code> failed with exit code <samp>' . $code['begin'] . '</samp>: <samp>' . $output['begin'][0] . '</samp>.');
 
-	exec(CONF['dns']['knotc_path'] . " zone-" . $action . "set " . $zone . " " . implode(" ", $cmd), $output['op'], $code['op']);
+	exec(CONF['dns']['knotc_path'] . ' zone-' . $action . 'set ' . $zone . ' ' . implode(' ', $cmd), $output['op'], $code['op']);
 	if ($code['op'] !== 0) {
-		exec(CONF['dns']['knotc_path'] . " zone-abort " . $zone);
+		exec(CONF['dns']['knotc_path'] . ' zone-abort ' . $zone);
 		output(500, 'knotcZoneExec: <code>knotc</code> failed with exit code <samp>' . $code['op'] . '</samp>: <samp>' . $output['op'][0] . '</samp>.');
 	}
 
-	exec(CONF['dns']['knotc_path'] . " zone-commit " . $zone, $output['commit'], $code['commit']);
+	exec(CONF['dns']['knotc_path'] . ' zone-commit ' . $zone, $output['commit'], $code['commit']);
 	if ($code['commit'] !== 0) {
-		exec(CONF['dns']['knotc_path'] . " zone-abort " . $zone);
+		exec(CONF['dns']['knotc_path'] . ' zone-abort ' . $zone);
 		output(500, 'knotcZoneExec: <code>knotc</code> failed with exit code <samp>' . $code['commit'] . '</samp>: <samp>' . $output['commit'][0] . '</samp>.');
 	}
 }
 
 function checkIpFormat($ip) {
 	if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4))
-		return "A";
+		return 'A';
 	if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6))
-		return "AAAA";
+		return 'AAAA';
 	output(403, 'IP address malformed.');
 }
 
 function checkAbsoluteDomainFormat($domain) {
 	// If the domain must end with a dot
-	if (!filter_var($domain, FILTER_VALIDATE_DOMAIN) OR !preg_match("/^([a-z0-9_-]{1,63}\.){2,127}$/", $domain))
+	if (!filter_var($domain, FILTER_VALIDATE_DOMAIN) OR !preg_match('/^([a-z0-9_-]{1,63}\.){2,127}$/', $domain))
 		output(403, 'Domain malformed.');
 }
 

fn/ht.php

@@ -2,7 +2,7 @@
 
 function checkDomainFormat($domain) {
 	// If the domain must end without a dot
-	if (!filter_var($domain, FILTER_VALIDATE_DOMAIN) OR !preg_match("/^([a-z0-9_-]{1,63}\.){1,126}[a-z0-9]{1,63}$/", $domain))
+	if (!filter_var($domain, FILTER_VALIDATE_DOMAIN) OR !preg_match('/^([a-z0-9_-]{1,63}\.){1,126}[a-z0-9]{1,63}$/', $domain))
 		output(403, 'Domain malformed.');
 }
 
@@ -13,7 +13,7 @@ function formatDomain($domain) {
 }
 
 function listFsDirs($username) {
-	$absoluteDirs = glob(CONF['ht']['ht_path'] . "/" . $username . "/*/", GLOB_ONLYDIR);
+	$absoluteDirs = glob(CONF['ht']['ht_path'] . '/' . $username . '/*/', GLOB_ONLYDIR);
 	$dirs = [];
 	foreach ($absoluteDirs as $absoluteDir)
 		if (preg_match('/^[\p{L}\p{N}_-]{1,64}$/u', basename($absoluteDir)))
@@ -28,7 +28,7 @@ function addSite($username, $siteDir, $domain, $domainType, $protocol) {
 		'domain' => $domain,
 		'domain_type' => $domainType,
 		'protocol' => $protocol,
-		'creation_date' => date("Y-m-d H:i:s"),
+		'creation_date' => date('Y-m-d H:i:s'),
 	]);
 }
 
@@ -52,7 +52,7 @@ function htDeleteSite($dir, $domainType, $protocol) {
 			output(500, 'Failed to delete Tor configuration.');
 
 		// Reload Tor
-		exec(CONF['ht']['sudo_path'] . " " . CONF['ht']['systemctl_path'] . " reload " . CONF['ht']['tor_service'], $output, $code);
+		exec(CONF['ht']['sudo_path'] . ' ' . CONF['ht']['systemctl_path'] . ' reload ' . CONF['ht']['tor_service'], $output, $code);
 		if ($code !== 0)
 			output(500, 'Failed to reload Tor.');
 
@@ -79,7 +79,7 @@ function htDeleteSite($dir, $domainType, $protocol) {
 
 	if ($domainType === 'dns') {
 		// Delete Let's Encrypt certificate
-		exec(CONF['ht']['sudo_path'] . " " . CONF['ht']['certbot_path'] . " delete --quiet --cert-name " . $domain, $output, $code);
+		exec(CONF['ht']['sudo_path'] . ' ' . CONF['ht']['certbot_path'] . ' delete --quiet --cert-name ' . $domain, $output, $code);
 		if ($code !== 0)
 			output(500, 'Certbot failed to delete the Let\'s Encrypt certificate.');
 	}

fn/ns.php

@@ -64,7 +64,7 @@ function nsDeleteZone($zone) {
 		output(500, 'Failed to remove Knot zone file.');
 
 	// Remove Knot related data
-	exec(CONF['dns']['knotc_path'] . " zone-purge " . $zone);
+	exec(CONF['dns']['knotc_path'] . ' zone-purge ' . $zone);
 
 	// Remove from database
 	query('delete', 'zones', [

fn/reg.php

@@ -14,7 +14,7 @@ function regDeleteDomain($domain) {
 	$regFile = file_get_contents(CONF['reg']['registry_file']);
 	if ($regFile === false)
 		output(500, 'Failed to read current registry File.');
-	$regFile = preg_replace("#[^\n]{0,1024}" . $domain . " {0,1024}[^\n]{0,1024}\n#", "", $regFile);
+	$regFile = preg_replace('/[^\n]{0,1024}' . $domain . ' {0,1024}[^\n]{0,1024}\n/', '', $regFile);
 	if (file_put_contents(CONF['reg']['registry_file'], $regFile) === false)
 		output(500, 'Failed to write new registry file.');
 

pages/auth/register.php

@@ -13,7 +13,7 @@ if (processForm(false)) {
 	insert('users', [
 		'username' => $_POST['username'],
 		'password' => hashPassword($_POST['password']),
-		'registration_date' => date("Y-m-d H:i:s"),
+		'registration_date' => date('Y-m-d H:i:s'),
 		'bucket_tokens' => 0,
 		'bucket_last_update' => 0,
 		'type' => 'testing',
@@ -21,18 +21,18 @@ if (processForm(false)) {
 
 	// Setup SFTP directory
 	umask(0002);
-	if (mkdir(CONF['ht']['ht_path'] . "/" . $_POST['username'], 0775) !== true)
+	if (mkdir(CONF['ht']['ht_path'] . '/' . $_POST['username'], 0775) !== true)
 		output(500, 'Can\'t create user directory.');
-	exec(CONF['ht']['sudo_path'] . " " . CONF['ht']['chgrp_path'] . " " . CONF['ht']['sftpgo_group'] . " " . CONF['ht']['ht_path'] . "/" . $_POST['username'] . " --no-dereference", result_code: $code);
+	exec(CONF['ht']['sudo_path'] . ' ' . CONF['ht']['chgrp_path'] . ' ' . CONF['ht']['sftpgo_group'] . ' ' . CONF['ht']['ht_path'] . '/' . $_POST['username'] . ' --no-dereference', result_code: $code);
 	if ($code !== 0)
 		output(500, 'Can\'t change user directory group.');
 
 	// Setup Tor config directory
-	if (mkdir(CONF['ht']['tor_config_path'] . "/" . $_POST['username'], 0755) !== true)
+	if (mkdir(CONF['ht']['tor_config_path'] . '/' . $_POST['username'], 0755) !== true)
 		output(500, 'Can\'t create Tor config directory.');
 
 	// Setup Tor keys directory
-	exec(CONF['ht']['sudo_path'] . " -u " . CONF['ht']['tor_user'] . " " . CONF['ht']['mkdir_path'] . " --mode=0700 " . CONF['ht']['tor_keys_path'] . "/" . $_POST['username'], result_code: $code);
+	exec(CONF['ht']['sudo_path'] . ' -u ' . CONF['ht']['tor_user'] . ' ' . CONF['ht']['mkdir_path'] . ' --mode=0700 ' . CONF['ht']['tor_keys_path'] . '/' . $_POST['username'], result_code: $code);
 	if ($code !== 0)
 		output(500, 'Can\'t create Tor keys directory.');
 

pages/auth/unregister.php

@@ -24,7 +24,7 @@ if (processForm()) {
 	], 'site_dir') as $dir)
 		htDeleteSite($dir, domainType: 'dns', protocol: 'http');
 
-	exec(CONF['ht']['sudo_path'] . " -u " . CONF['ht']['tor_user'] . " " . CONF['ht']['rm_path'] . " --recursive " . CONF['ht']['tor_keys_path'] . "/" . $_SESSION['username'], result_code: $code);
+	exec(CONF['ht']['sudo_path'] . ' -u ' . CONF['ht']['tor_user'] . ' ' . CONF['ht']['rm_path'] . ' --recursive ' . CONF['ht']['tor_keys_path'] . '/' . $_SESSION['username'], result_code: $code);
 	if ($code !== 0)
 		output(500, 'Can\'t remove Tor keys directory.');
 
@@ -36,7 +36,7 @@ if (processForm()) {
 
 	query('delete', 'users', ['username' => $_SESSION['username']]);
 
-	require "logout.php";
+	require 'logout.php';
 
 	output(200, 'Compte supprimé.');
 }

pages/ht/add-http-dns.php

@@ -1,7 +1,7 @@
 <?php
 
 if (isset($_SESSION['username']))
-	$dirsStatuses = dirsStatuses($_SESSION['username'], "dns", "http");
+	$dirsStatuses = dirsStatuses($_SESSION['username'], 'dns', 'http');
 else
 	$dirsStatuses = [];
 
@@ -29,14 +29,14 @@ if (processForm()) {
 	$remoteTXTRecords = dns_get_record($_POST['domain'], DNS_TXT);
 	if (is_array($remoteTXTRecords) !== true)
 		output(500, 'Erreur lors de la récupération de l\'enregistrement TXT.');
-	if (preg_match('/\nauth-owner=([0-9a-f]{8})-([0-9a-f]{32})\n/', "\n" . implode("\n", array_column($remoteTXTRecords, 'txt')) . "\n", $matches) !== 1)
+	if (preg_match('/^auth-owner=([0-9a-f]{8})-([0-9a-f]{32})$/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'], $_POST['domain'], "dns", "http");
+	addSite($_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)
@@ -54,11 +54,11 @@ if (processForm()) {
 	include inc/ht-tls.conf;
 }
 ';
-	if (file_put_contents(CONF['ht']['nginx_config_path'] . "/" . $_POST['domain'] . ".conf", $nginxConf) === false)
+	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);
+	exec(CONF['ht']['sudo_path'] . ' ' . CONF['ht']['systemctl_path'] . ' reload nginx', result_code: $code);
 	if ($code !== 0)
 		output(500, 'Failed to reload Nginx.');
 
@@ -99,10 +99,8 @@ $proof = getAuthToken();
 	<select required="" name="dir" id="dir">
 		<option value="" disabled="" selected="">---</option>
 <?php
-
 foreach ($dirsStatuses as $dir => $alreadyEnabled)
-	echo '		<option' . ($alreadyEnabled ? ' disabled=""' : '') . ' value="' . $dir . '">' . $dir . '</option>' . "\n";
-
+	echo '		<option' . ($alreadyEnabled ? ' disabled=""' : '') . ' value="' . $dir . '">' . $dir . '</option>' . LF;
 ?>
 	</select>
 	<br>

pages/ht/add-http-onion.php

@@ -1,7 +1,7 @@
 <?php
 
 if (isset($_SESSION['username']))
-	$dirsStatuses = dirsStatuses($_SESSION['username'], "onion", "http");
+	$dirsStatuses = dirsStatuses($_SESSION['username'], 'onion', 'http');
 else
 	$dirsStatuses = [];
 
@@ -12,25 +12,25 @@ if (processForm()) {
 	rateLimit();
 
 	// Add Tor config
-	$torConf = "HiddenServiceDir " . CONF['ht']['tor_keys_path'] . "/" . $_SESSION['username'] . "/" . $_POST['dir'] . "/
-	HiddenServicePort 80 [::1]:" . CONF['ht']['internal_onion_http_port'] . "
-	";
+	$torConf = 'HiddenServiceDir ' . CONF['ht']['tor_keys_path'] . '/' . $_SESSION['username'] . '/' . $_POST['dir'] . '/
+	HiddenServicePort 80 [::1]:' . CONF['ht']['internal_onion_http_port'] . '
+	';
 	if (file_put_contents(CONF['ht']['tor_config_path'] . '/' . $_SESSION['username'] . '/' . $_POST['dir'], $torConf) === false)
 		output(500, 'Failed to write new Tor configuration.');
 
 	// Reload Tor
-	exec(CONF['ht']['sudo_path'] . " " . CONF['ht']['systemctl_path'] . " reload " . CONF['ht']['tor_service'], $output, $code);
+	exec(CONF['ht']['sudo_path'] . ' ' . CONF['ht']['systemctl_path'] . ' reload ' . CONF['ht']['tor_service'], $output, $code);
 	if ($code !== 0)
 		output(500, 'Failed to reload Tor.');
 
 	// Get the address generated by Tor
 	exec(CONF['ht']['sudo_path'] . ' -u ' . CONF['ht']['tor_user'] . ' ' . CONF['ht']['cat_path'] . ' ' . CONF['ht']['tor_keys_path'] . '/' . $_SESSION['username'] . '/' . $_POST['dir'] . '/hostname', $output);
 	$onion = $output[0];
-	if (preg_match("/[0-9a-z]{56}\.onion/", $onion) !== 1)
+	if (preg_match('/[0-9a-z]{56}\.onion/', $onion) !== 1)
 		output(500, 'No onion address found.');
 
 	// Store it in the database
-	addSite($_SESSION['username'], $_POST['dir'], $onion, "onion", "http");
+	addSite($_SESSION['username'], $_POST['dir'], $onion, 'onion', 'http');
 
 	// Add Nginx config
 	$nginxConf = 'server {
@@ -41,11 +41,11 @@ if (processForm()) {
 		include inc/ht-onion.conf;
 	}
 	';
-	if (file_put_contents(CONF['ht']['nginx_config_path'] . "/" . $onion . ".conf", $nginxConf) === false)
+	if (file_put_contents(CONF['ht']['nginx_config_path'] . '/' . $onion . '.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);
+	exec(CONF['ht']['sudo_path'] . ' ' . CONF['ht']['systemctl_path'] . ' reload nginx', result_code: $code);
 	if ($code !== 0)
 		output(500, 'Failed to reload Nginx.');
 
@@ -64,16 +64,10 @@ if (processForm()) {
 	<label for="dir">Dossier ciblé</label><br>
 	<select required="" name="dir" id="dir">
 		<option value="" disabled="" selected="">---</option>
-
 <?php
-
-foreach ($dirsStatuses as $dir => $alreadyEnabled) {
-	$disabled = $alreadyEnabled ? "disabled='' " : "";
-	echo "		<option " . $disabled . "value='" . $dir . "'>" . $dir . "</option>";
-}
-
+foreach ($dirsStatuses as $dir => $alreadyEnabled)
+	echo '		<option' . ($alreadyEnabled ? ' disabled=""' : '') . ' value="' . $dir . '">' . $dir . '</option>' . LF;
 ?>
-
 	</select>
 	<br>
 	<input value="Valider" type="submit">

pages/ht/del-http-dns.php

@@ -1,7 +1,7 @@
 <?php
 
 if (isset($_SESSION['username']))
-	$dirsStatuses = dirsStatuses($_SESSION['username'], "dns", "http");
+	$dirsStatuses = dirsStatuses($_SESSION['username'], 'dns', 'http');
 else
 	$dirsStatuses = [];
 
@@ -24,16 +24,10 @@ if (processForm()) {
 	<label for="dir">Dossier ciblé</label><br>
 	<select required="" name="dir" id="dir">
 		<option value="" disabled="" selected="">---</option>
-
 <?php
-
-foreach ($dirsStatuses as $dir => $alreadyEnabled) {
-	$disabled = $alreadyEnabled ? "" : "disabled='' ";
-	echo "		<option " . $disabled . "value='" . $dir . "'>" . $dir . "</option>\n";
-}
-
+foreach ($dirsStatuses as $dir => $alreadyEnabled)
+	echo '		<option' . ($alreadyEnabled ? '' : ' disabled=""') . ' value="' . $dir . '">' . $dir . '</option>' . LF;
 ?>
-
 	</select>
 	<br>
 	<input value="Valider" type="submit">

pages/ht/del-http-onion.php

@@ -1,7 +1,7 @@
 <?php
 
 if (isset($_SESSION['username']))
-	$dirsStatuses = dirsStatuses($_SESSION['username'], "onion", "http");
+	$dirsStatuses = dirsStatuses($_SESSION['username'], 'onion', 'http');
 else
 	$dirsStatuses = [];
 
@@ -24,16 +24,10 @@ if (processForm()) {
 	<label for="dir">Dossier ciblé</label><br>
 	<select required="" name="dir" id="dir">
 		<option value="" disabled="" selected="">---</option>
-
 <?php
-
-foreach ($dirsStatuses as $dir => $alreadyEnabled) {
-	$disabled = $alreadyEnabled ? "" : "disabled='' ";
-	echo "		<option " . $disabled . "value='" . $dir . "'>" . $dir . "</option>\n";
-}
-
+foreach ($dirsStatuses as $dir => $alreadyEnabled)
+	echo '		<option' . ($alreadyEnabled ? '' : ' disabled=""') . ' value="' . $dir . '">' . $dir . '</option>' . LF;
 ?>
-
 	</select>
 	<br>
 	<input value="Valider" type="submit">

pages/ht/index.php

@@ -11,9 +11,9 @@
 
 $sites = query('select', 'sites', ['username' => $_SESSION['username'] ?? '']);
 if ($sites === [])
-	echo '	<p>Ce compte n\'héberge aucun site sur cette instance.<p>' . "\n";
+	echo '	<p>Ce compte n\'héberge aucun site sur cette instance.<p>' . LF;
 else {
-	echo '	<dl>' . "\n";
+	echo '	<dl>' . LF;
 	foreach ($sites as $site) {
 		$url = 'http' . (($site['domain_type'] === 'onion') ? '' : 's') . '://' . $site['domain'] . '/';
 ?>
@@ -23,7 +23,7 @@ else {
 		</dd>
 <?php
 	}
-	echo '	</dl>' . "\n";
+	echo '	</dl>' . LF;
 }
 
 ?>

pages/ns/caa.php

@@ -6,16 +6,16 @@ if (processForm()) {
 	if (!($_POST['flag'] >= 0 AND $_POST['flag'] <= 255))
 		output(403, 'Wrong value for <code>flag</code>.');
 
-	if (!(preg_match("/^[a-z]{1,127}$/", $_POST['tag'])))
+	if (!(preg_match('/^[a-z]{1,127}$/', $_POST['tag'])))
 		output(403, 'Wrong value for <code>tag</code>.');
 
-	if (!(preg_match("/^[a-z0-9.-]{1,255}$/", $_POST['value'])))
+	if (!(preg_match('/^[a-z0-9.-]{1,255}$/', $_POST['value'])))
 		output(403, 'Wrong value for <code>value</code>.');
 
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"CAA",
+		'CAA',
 		$_POST['flag'],
 		$_POST['tag'],
 		$_POST['value']
@@ -32,7 +32,7 @@ if (processForm()) {
 
 <form method="post">
 
-<?php require "form.ns.php"; ?>
+<?php require 'form.ns.php'; ?>
 
 	<br>
 	<label for="flag">Flag</label>

pages/ns/cname.php

@@ -8,7 +8,7 @@ if (processForm()) {
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"CNAME",
+		'CNAME',
 		$_POST['cname']
 	));
 
@@ -22,7 +22,7 @@ if (processForm()) {
 </p>
 
 <form method="post">
-	<?php require "form.ns.php"; ?>
+	<?php require 'form.ns.php'; ?>
 	<br>
 	<label for="cname">Nom canonique</label>
 	<br>

pages/ns/dname.php

@@ -8,7 +8,7 @@ if (processForm()) {
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"DNAME",
+		'DNAME',
 		$_POST['dname']
 	));
 
@@ -22,7 +22,7 @@ if (processForm()) {
 </p>
 
 <form method="post">
-	<?php require "form.ns.php"; ?>
+	<?php require 'form.ns.php'; ?>
 	<br>
 	<label for="dname">Nom délégué</label>
 	<br>

pages/ns/edit.php

@@ -11,7 +11,7 @@ if (processForm() AND isset($_POST['zone-content'])) { // Update zone
 		output(500, 'Unable to get current serial from zone file.');
 
 	// Generate new zone content
-	$new_zone_content = $matches['soa'] . "\n";
+	$new_zone_content = $matches['soa'] . LF;
 	if (strlen($_POST['zone-content']) > ZONE_MAX_CHARACTERS)
 		output(403, 'La zone n\'est pas autorisée à dépasser ' . ZONE_MAX_CHARACTERS . ' caractères.');
 	foreach (explode("\r\n", $_POST['zone-content']) as $line) {
@@ -24,7 +24,7 @@ if (processForm() AND isset($_POST['zone-content'])) { // Update zone
 			output(403, 'Les TTLs inférieurs à ' . MIN_TTL . ' secondes ne sont pas autorisés.');
 		if ($matches['ttl'] !== '' AND $matches['ttl'] > MAX_TTL)
 			output(403, 'Les TTLs supérieurs à ' . MAX_TTL . ' secondes ne sont pas autorisés.');
-		$new_zone_content .= $matches['domain'] . ' ' . (($matches['ttl'] === '') ? DEFAULT_TTL : $matches['ttl']) . ' ' . $matches['type'] . ' ' . $matches['value'] . "\n";
+		$new_zone_content .= $matches['domain'] . ' ' . (($matches['ttl'] === '') ? DEFAULT_TTL : $matches['ttl']) . ' ' . $matches['type'] . ' ' . $matches['value'] . LF;
 	}
 
 	// Send the zone content to kzonecheck's stdin
@@ -72,7 +72,7 @@ if (processForm() AND isset($_POST['zone-content'])) { // Update zone
 <?php
 if (isset($_SESSION['username']))
 	foreach (nsListUserZones($_SESSION['username']) as $zone)
-		echo '		<option value="' . $zone . '">' . $zone . '</option>' . "\n";
+		echo '		<option value="' . $zone . '">' . $zone . '</option>' . LF;
 ?>
 	</select>
 	<br>
@@ -89,23 +89,23 @@ if (processForm()) { // Display zone
 		output(500, 'Unable to read zone file.');
 
 	$displayed_zone_content = '';
-	foreach(explode("\n", $zone_content) as $zone_line) {
+	foreach(explode(LF, $zone_content) as $zone_line) {
 		if (empty($zone_line) OR str_starts_with($zone_line, ';'))
 			continue;
 		if (preg_match('/^(?:(?:[a-z0-9_-]{1,63}\.){1,127})?' . preg_quote($_POST['zone'], '/') . '[\t ]+[0-9]{1,8}[\t ]+(?<type>[A-Z]{1,16})[\t ]+.+$/', $zone_line, $matches)) {
 			if (in_array($matches['type'], ALLOWED_TYPES, true) !== true)
 				continue;
-			$displayed_zone_content .= $zone_line . "\n";
+			$displayed_zone_content .= $zone_line . LF;
 		}
 	}
-	$displayed_zone_content .= "\n";
+	$displayed_zone_content .= LF;
 
 ?>
 <form method="post">
 	<input type="hidden" name="zone" value="<?= $_POST['zone'] ?>">
 
 	<label for="zone-content">Nouveau contenu de la zone <code><strong><?= $_POST['zone'] ?></strong></code></label>
-	<textarea id="zone-content" name="zone-content" wrap="off" rows="<?= substr_count($displayed_zone_content, "\n") + 1 ?>"><?= htmlspecialchars($displayed_zone_content) ?></textarea>
+	<textarea id="zone-content" name="zone-content" wrap="off" rows="<?= substr_count($displayed_zone_content, LF) + 1 ?>"><?= htmlspecialchars($displayed_zone_content) ?></textarea>
 	<br>
 	<input type="submit" value="Remplacer">
 </form>

pages/ns/index.php

@@ -10,10 +10,10 @@
 
 $zones = query('select', 'zones', ['username' => $_SESSION['username'] ?? ''], 'zone');
 if ($zones === [])
-	echo '<p>Ce compte n\'héberge aucune zone sur cette instance.<p>' . "\n";
+	echo '<p>Ce compte n\'héberge aucune zone sur cette instance.<p>' . LF;
 else {
-	echo '<ul>' . "\n";
+	echo '<ul>' . LF;
 	foreach ($zones as $zone)
-		echo '	<code><li>' . $zone . '</li></code>' . "\n";
-	echo '</ul>' . "\n";
+		echo '	<code><li>' . $zone . '</li></code>' . LF;
+	echo '</ul>' . LF;
 }

pages/ns/ip.php

@@ -22,7 +22,7 @@ if (processForm()) {
 </p>
 
 <form method="post">
-<?php require "form.ns.php"; ?>
+<?php require 'form.ns.php'; ?>
 	<label for="ip">Adresse IP</label><br>
 	<input required="" pattern="^[a-f0-9:.]+$" id="ip" name="ip" minlength="2" maxlength="39" size="40" type="text" placeholder="<?= PLACEHOLDER_IPV6 ?> ou <?= PLACEHOLDER_IPV4 ?>"><br>
 	<input value="Valider" type="submit">

pages/ns/loc.php

@@ -25,7 +25,7 @@ if (processForm()) {
 	if (!($_POST['lat-sec'] >= 0 AND $_POST['lat-sec'] <= 59.999))
 		output(403, 'Wrong value for <code>lat-sec</code>.');
 
-	if ($_POST['lat-dir'] !== "N" AND $_POST['lat-dir'] !== "S")
+	if ($_POST['lat-dir'] !== 'N' AND $_POST['lat-dir'] !== 'S')
 		output(403, 'Wrong value for <code>lat-dir</code>.');
 
 	if (!($_POST['lon-deg'] >= 0 AND $_POST['lon-deg'] <= 180))
@@ -35,7 +35,7 @@ if (processForm()) {
 	if (!($_POST['lon-sec'] >= 0 AND $_POST['lon-sec'] <= 59.999))
 		output(403, 'Wrong value for <code>lon-sec</code>.');
 
-	if ($_POST['lon-dir'] !== "E" AND $_POST['lon-dir'] !== "W")
+	if ($_POST['lon-dir'] !== 'E' AND $_POST['lon-dir'] !== 'W')
 		output(403, 'Wrong value for <code>lon-dir</code>.');
 
 	if (!($_POST['alt'] >= -100000 AND $_POST['alt'] <= 42849672.95))
@@ -53,7 +53,7 @@ if (processForm()) {
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"LOC",
+		'LOC',
 		$_POST['lat-deg'],
 		$_POST['lat-min'],
 		$_POST['lat-sec'],
@@ -79,7 +79,7 @@ if (processForm()) {
 
 <form method="post">
 
-	<?php require "form.ns.php"; ?>
+	<?php require 'form.ns.php'; ?>
 
 	<fieldset>
 		<legend>Latitude</legend>

pages/ns/mx.php

@@ -11,7 +11,7 @@ if (processForm()) {
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"MX",
+		'MX',
 		$_POST['priority'],
 		$_POST['host']
 	));
@@ -27,7 +27,7 @@ if (processForm()) {
 
 <form method="post">
 
-<?php require "form.ns.php"; ?>
+<?php require 'form.ns.php'; ?>
 
 	<br>
 

pages/ns/ns.php

@@ -8,7 +8,7 @@ if (processForm()) {
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"NS",
+		'NS',
 		$_POST['ns']
 	));
 
@@ -22,7 +22,7 @@ if (processForm()) {
 </p>
 
 <form method="post">
-<?php require "form.ns.php"; ?>
+<?php require 'form.ns.php'; ?>
 	<br>
 	<label for="ns">Serveur de nom</label>
 	<br>

pages/ns/print.php

@@ -15,7 +15,7 @@
 <?php
 if (isset($_SESSION['username']))
 	foreach (nsListUserZones($_SESSION['username']) as $zone)
-		echo "		<option value='" . $zone . "'>" . $zone . "</option>\n";
+		echo '		<option value="' . $zone . '">' . $zone . '</option>' . LF;
 ?>
 	</select>
 	<br>
@@ -46,10 +46,10 @@ if (processForm()) {
 		<th>Contenu</th>
 	</tr>
 <?php
-		foreach(explode("\n", $zoneContent) as $zoneLine) {
+		foreach(explode(LF, $zoneContent) as $zoneLine) {
 			if (str_starts_with($zoneLine, ';')) continue; // Ignore comments
 			if (empty($zoneLine)) continue;
-			$elements = preg_split("#[\t ]+#", $zoneLine, 4);
+			$elements = preg_split('/[\t ]+/', $zoneLine, 4);
 			if (!in_array($elements[2], ALLOWED_TYPES, true)) continue; // Ignore records generated by Knot
 			echo '	<tr>';
 			foreach ($elements as $element)

pages/ns/srv.php

@@ -17,7 +17,7 @@ if (processForm()) {
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"SRV",
+		'SRV',
 		$_POST['priority'],
 		$_POST['weight'],
 		$_POST['port'],
@@ -35,7 +35,7 @@ if (processForm()) {
 
 <form method="post">
 
-<?php require "form.ns.php"; ?>
+<?php require 'form.ns.php'; ?>
 
 	<br>
 

pages/ns/sshfp.php

@@ -3,19 +3,19 @@
 if (processForm()) {
 	$values = nsParseCommonRequirements();
 
-	if (!($_POST['algo'] === "1" OR $_POST['algo'] === "3" OR $_POST['algo'] === "4"))
+	if (!($_POST['algo'] === '1' OR $_POST['algo'] === '3' OR $_POST['algo'] === '4'))
 		output(403, 'Wrong value for <code>algo</code>.');
 
-	if (!($_POST['type'] === "2"))
+	if (!($_POST['type'] === '2'))
 		output(403, 'Wrong value for <code>type</code>.');
 
-	if (!(preg_match("/^[a-z0-9]{64}$/", $_POST['fp'])))
+	if (!(preg_match('/^[a-z0-9]{64}$/', $_POST['fp'])))
 		output(403, 'Wrong value for <code>fp</code>.');
 
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"SSHFP",
+		'SSHFP',
 		$_POST['algo'],
 		$_POST['type'],
 		$_POST['fp']
@@ -32,7 +32,7 @@ if (processForm()) {
 
 <form method="post">
 
-<?php require "form.ns.php"; ?>
+<?php require 'form.ns.php'; ?>
 
 	<br>
 

pages/ns/tlsa.php

@@ -6,19 +6,19 @@ if (processForm()) {
 	if (!($_POST['use'] >= 0 AND $_POST['use'] <= 3))
 		output(403, 'Wrong value for <code>use</code>.');
 
-	if (!($_POST['selector'] === "0" OR $_POST['selector'] === "1"))
+	if (!($_POST['selector'] === '0' OR $_POST['selector'] === '1'))
 		output(403, 'Wrong value for <code>selector</code>.');
 
 	if (!($_POST['type'] >= 0 AND $_POST['type'] <= 2))
 		output(403, 'Wrong value for <code>type</code>.');
 
-	if (!(preg_match("/^[a-zA-Z0-9.-]{1,1024}$/", $_POST['content'])))
+	if (!(preg_match('/^[a-zA-Z0-9.-]{1,1024}$/', $_POST['content'])))
 		output(403, 'Wrong value for <code>content</code>.');
 
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"TLSA",
+		'TLSA',
 		$_POST['use'],
 		$_POST['selector'],
 		$_POST['type'],
@@ -36,7 +36,7 @@ if (processForm()) {
 
 <form method="post">
 
-<?php require "form.ns.php"; ?>
+<?php require 'form.ns.php'; ?>
 
 	<br>
 	<label for="use">Utilisation</label>

pages/ns/txt.php

@@ -3,14 +3,14 @@
 if (processForm()) {
 	$values = nsParseCommonRequirements();
 
-	if (!(preg_match("/^[a-zA-Z0-9 =:!%$+\/\()[\]_-]{5,8192}$/", $_POST['txt'])))
+	if (!(preg_match('/^[a-zA-Z0-9 =:!%$+\/\()[\]_-]{5,8192}$/', $_POST['txt'])))
 		output(403, 'Wrong value for <code>txt</code>.');
 
 	knotcZoneExec($_POST['zone'], array(
 		$values['domain'],
 		$values['ttl'],
-		"TXT",
-		"\"" . $_POST['txt'] . "\""
+		'TXT',
+		'"' . $_POST['txt'] . '"'
 	));
 
 	output(200, 'Enregistrement ajouté/retiré.');
@@ -23,7 +23,7 @@ if (processForm()) {
 </p>
 
 <form method="post">
-<?php require "form.ns.php"; ?>
+<?php require 'form.ns.php'; ?>
 	<br>
 	<label for="txt">Texte</label>
 	<br>

pages/ns/zone-add.php

@@ -13,7 +13,7 @@ if (processForm()) {
 		checkAbsoluteDomainFormat($parentAuthoritative);
 
 	exec(CONF['ns']['kdig_path'] . ' ' . $_POST['domain'] . ' NS @' . $parentAuthoritatives[0] . ' +noidn', $results);
-	if (preg_match('/^' . preg_quote($_POST['domain'], '/') . '[\t ]+[0-9]{1,8}[\t ]+IN[\t ]+NS[\t ]+(?<salt>[0-9a-f]{8})-(?<hash>[0-9a-f]{32})\.auth-owner.+$/m', implode("\n", $results), $matches) !== 1)
+	if (preg_match('/^' . preg_quote($_POST['domain'], '/') . '[\t ]+[0-9]{1,8}[\t ]+IN[\t ]+NS[\t ]+(?<salt>[0-9a-f]{8})-(?<hash>[0-9a-f]{32})\.auth-owner.+$/m', implode(LF, $results), $matches) !== 1)
 		output(403, 'Enregistrement d\'authentification introuvable');
 
 	checkAuthToken($matches['salt'], $matches['hash']);
@@ -25,7 +25,7 @@ if (processForm()) {
 		'username' => $_SESSION['username'],
 	]);
 
-	$knotZonePath = CONF['ns']['knot_zones_path'] . "/" . $_POST['domain'] . "zone";
+	$knotZonePath = CONF['ns']['knot_zones_path'] . '/' . $_POST['domain'] . 'zone';
 	$knotZone = implode(' ', [
 		$_POST['domain'],
 		SOA_VALUES['ttl'],
@@ -37,9 +37,9 @@ if (processForm()) {
 		SOA_VALUES['retry'],
 		SOA_VALUES['expire'],
 		SOA_VALUES['negative'],
-	]) . "\n";
+	]) . LF;
 	foreach (CONF['ns']['servers'] as $server)
-		$knotZone .= $_POST['domain'] . ' 86400 NS ' . $server . "\n";
+		$knotZone .= $_POST['domain'] . ' 86400 NS ' . $server . LF;
 	if (is_int(file_put_contents($knotZonePath, $knotZone)) !== true)
 		output(500, 'Failed to write new zone file.');
 	if (chmod($knotZonePath, 0660) !== true)

pages/ns/zone-del.php

@@ -17,7 +17,7 @@ if (processForm()) {
 <?php
 if (isset($_SESSION['username']))
 	foreach (nsListUserZones($_SESSION['username']) as $zone)
-		echo "		<option value='" . $zone . "'>" . $zone . "</option>\n";
+		echo '		<option value="' . $zone . '">' . $zone . '</option>' . LF;
 ?>
 	</select>
 	<br>

pages/reg/ds.php

@@ -7,18 +7,18 @@ else
 
 if (processForm()) {
 	if (
-		($_POST['algo'] !== "8")
-		AND ($_POST['algo'] !== "13")
-		AND ($_POST['algo'] !== "14")
-		AND ($_POST['algo'] !== "15")
-		AND ($_POST['algo'] !== "16")
+		($_POST['algo'] !== '8')
+		AND ($_POST['algo'] !== '13')
+		AND ($_POST['algo'] !== '14')
+		AND ($_POST['algo'] !== '15')
+		AND ($_POST['algo'] !== '16')
 	) output(403, 'Wrong value for <code>algo</code>.');
 
 	$_POST['keytag'] = intval($_POST['keytag']);
-	if ((!preg_match("/^[0-9]{1,6}$/", $_POST['keytag'])) OR !($_POST['keytag'] >= 1) OR !($_POST['keytag'] <= 65535))
+	if ((!preg_match('/^[0-9]{1,6}$/', $_POST['keytag'])) OR !($_POST['keytag'] >= 1) OR !($_POST['keytag'] <= 65535))
 		output(403, 'Wrong value for <code>keytag</code>.');
 
-	if ($_POST['dt'] !== "2" AND $_POST['dt'] !== "4")
+	if ($_POST['dt'] !== '2' AND $_POST['dt'] !== '4')
 		output(403, 'Wrong value for <code>dt</code>.');
 
 	regCheckDomainPossession($_POST['zone']);
@@ -28,7 +28,7 @@ if (processForm()) {
 	knotcZoneExec(CONF['reg']['registry'], array(
 		$_POST['zone'],
 		CONF['reg']['ttl'],
-		"DS",
+		'DS',
 		$_POST['keytag'],
 		$_POST['algo'],
 		$_POST['dt'],
@@ -56,12 +56,9 @@ if (processForm()) {
 	<select required="" name="zone" id="zone">
 		<option value="" disabled="" selected="">---</option>
 <?php
-
-foreach($domains as $domain)
-	echo "		<option value='" . $domain . "'>" . $domain . "</option>";
-
+foreach ($domains as $domain)
+	echo '		<option value="' . $domain . '">' . $domain . '</option>' . LF;
 ?>
-
 	</select>
 	<br>
 	<label for="keytag">Tag de la clé</label>

pages/reg/glue.php

@@ -41,13 +41,10 @@ if (processForm()) {
 			<br>
 			<select required="" name="suffix" id="suffix">
 				<option value="" disabled="" selected="">---</option>
-
 <?php
-
 if (isset($_SESSION['username']))
 	foreach(regListUserDomains($_SESSION['username']) as $suffix)
-		echo "				<option value='" . $suffix . "'>." . $suffix . "</option>";
-
+		echo '		<option value="' . $suffix . '">' . $suffix . '</option>' . LF;
 ?>
 			</select>
 		</div>

pages/reg/index.php

@@ -10,10 +10,10 @@
 
 $domains = query('select', 'registry', ['username' => $_SESSION['username'] ?? ''], 'domain');
 if ($domains === [])
-	echo '<p>Ce compte n\'a aucun domaine enregistré sur <code>' . CONF['reg']['registry'] . '</code><p>' . "\n";
+	echo '<p>Ce compte n\'a aucun domaine enregistré sur <code>' . CONF['reg']['registry'] . '</code><p>' . LF;
 else {
-	echo '<ul>' . "\n";
+	echo '<ul>' . LF;
 	foreach ($domains as $domain)
-		echo '	<code><li>' . $domain . '</li></code>' . "\n";
-	echo '</ul>' . "\n";
+		echo '	<code><li>' . $domain . '</li></code>' . LF;
+	echo '</ul>' . LF;
 }

pages/reg/ns.php

@@ -7,7 +7,7 @@ if (processForm()) {
 	knotcZoneExec(CONF['reg']['registry'], array(
 		$_POST['domain'],
 		CONF['reg']['ttl'],
-		"NS",
+		'NS',
 		$_POST['ns']
 	));
 
@@ -33,10 +33,9 @@ if (processForm()) {
 		<option value="" disabled="" selected="">---</option>
 <?php
 if (isset($_SESSION['username']))
-	foreach(regListUserDomains($_SESSION['username']) as $domain)
-		echo "		<option value='" . $domain . "'>" . $domain . "</option>\n";
+	foreach (regListUserDomains($_SESSION['username']) as $domain)
+		echo '		<option value="' . $domain . '">' . $domain . '</option>' . LF;
 ?>
-
 	</select>
 	<br>
 	<label for="ns">Serveur de nom</label>

pages/reg/print.php

@@ -5,8 +5,8 @@
 <?php
 if (isset($_SESSION['username']))
 	foreach (regListUserDomains($_SESSION['username']) as $domain)
-		echo "		<option value='" . $domain . "'>" . $domain . "</option>\n";
-	?>
+		echo '		<option value="' . $domain . '">' . $domain . '</option>' . LF;
+?>
 	</select>
 	<br>
 	<input value="Afficher" type="submit">
@@ -21,26 +21,26 @@ if (processForm()) {
 	if ($zoneContent === false)
 		output(500, 'Unable to read registry file.');
 
-	?>
-	<table>
-		<tr>
-			<th>Domaine</th>
-			<th>TTL</th>
-			<th>Type</th>
-			<th>Contenu</th>
-		</tr>
-	<?php
+?>
+<table>
+	<tr>
+		<th>Domaine</th>
+		<th>TTL</th>
+		<th>Type</th>
+		<th>Contenu</th>
+	</tr>
+<?php
 
-	foreach(explode("\n", $zoneContent) as $zoneLine) {
+	foreach(explode(LF, $zoneContent) as $zoneLine) {
 		if (str_starts_with($zoneLine, ';')) continue; // Ignore comments
 		if (empty($zoneLine)) continue;
-		$elements = preg_split("#[\t ]+#", $zoneLine, 4);
+		$elements = preg_split('/[\t ]+/', $zoneLine, 4);
 		if (!str_ends_with($elements[0], $_POST['domain'])) continue; // Ignore records for other domains
 		if (!in_array($elements[2], ['A', 'AAAA', 'NS', 'DS'], true)) continue; // Ignore records generated by Knot
-		echo "	<tr>\n";
+		echo '	<tr>' . LF;
 		foreach ($elements as $element)
-			echo "		<td><code>" . htmlspecialchars($element) . "</code></td>\n";
-		echo "	</tr>\n";
+			echo '		<td><code>' . htmlspecialchars($element) . '</code></td>' . LF;
+		echo '	</tr>' . LF;
 	}
 
 	echo '</table>';

pages/reg/register.php

@@ -9,7 +9,7 @@ if (processForm()) {
 	if (query('select', 'registry', ['domain' => $domain], 'domain') !== [])
 		output(403, 'Ce domaine n\'est pas disponible à l\'enregistrement. Il est déjà enregistré.');
 
-	if (in_array($_POST['subdomain'], explode("\n", file_get_contents(CONF['common']['root_path'] . '/pages/reg/reserved.txt'))))
+	if (in_array($_POST['subdomain'], explode(LF, file_get_contents(CONF['common']['root_path'] . '/pages/reg/reserved.txt'))))
 		output(403, 'Ce domaine n\'est pas disponible à l\'enregistrement. Il est réservé.');
 
 	rateLimit();
@@ -17,7 +17,7 @@ if (processForm()) {
 	insert('registry', [
 		'domain' => $domain,
 		'username' => $_SESSION['username'],
-		'last_renewal' => date("Y-m-d H:i:s"),
+		'last_renewal' => date('Y-m-d H:i:s'),
 	]);
 
 	output(200, 'Domaine ajouté au registre.');

pages/reg/unregister.php

@@ -22,9 +22,8 @@ if (processForm()) {
 <?php
 if (isset($_SESSION['username']))
 	foreach(regListUserDomains($_SESSION['username']) as $domain)
-		echo "		<option value='" . $domain . "'>" . $domain . "</option>\n";
+		echo '		<option value="' . $domain . '">' . $domain . '</option>' . LF;
 ?>
-
 	</select>
 	<br>
 	<input value="Effacer" type="submit">

router.php

@@ -1,11 +1,13 @@
 <?php
-define("CONF", parse_ini_file(__DIR__ . "/config.ini", true, INI_SCANNER_TYPED));
+define('CONF', parse_ini_file(__DIR__ . '/config.ini', true, INI_SCANNER_TYPED));
 
-foreach (array_diff(scandir(CONF['common']['root_path'] . "/fn"), array('..', '.')) as $file)
+foreach (array_diff(scandir(CONF['common']['root_path'] . '/fn'), array('..', '.')) as $file)
 	require CONF['common']['root_path'] . '/fn/' . $file;
-require "pages.php";
+require 'pages.php';
 
-define("DB_PATH", CONF['common']['root_path'] . "/db/niver.db");
+define('DB_PATH', CONF['common']['root_path'] . '/db/niver.db');
+
+const LF = "\n";
 
 const PLACEHOLDER_DOMAIN = 'example'; // From RFC2606: Reserved Top Level DNS Names > 2. TLDs for Testing, & Documentation Examples
 const PLACEHOLDER_IPV6 = '2001:db8::3'; // From RFC3849: IPv6 Address Prefix Reserved for Documentation
@@ -15,15 +17,15 @@ if ($_SERVER['REQUEST_URI'] === '/sftpgo-auth.php')
 	return;
 
 $pageAddress = substr($_SERVER['REQUEST_URI'], strlen(CONF['common']['prefix']) + 1);
-if (strpos($pageAddress, "?") !== false) {
-	parse_str(substr($pageAddress, strpos($pageAddress, "?") + 1), $_GET);
-	$pageAddress = substr($pageAddress, 0, strpos($pageAddress, "?"));
+if (strpos($pageAddress, '?') !== false) {
+	parse_str(substr($pageAddress, strpos($pageAddress, '?') + 1), $_GET);
+	$pageAddress = substr($pageAddress, 0, strpos($pageAddress, '?'));
 }
-define("PAGE_URL", $pageAddress);
-define("PAGE_ADDRESS", $pageAddress . ((substr($pageAddress, -1) === '/' OR $pageAddress === '') ? 'index' : ''));
-define("PAGE_LINEAGE", explode('/', PAGE_ADDRESS));
-define("SERVICE", dirname(PAGE_ADDRESS));
-define("PAGE", basename(PAGE_ADDRESS, '.php'));
+define('PAGE_URL', $pageAddress);
+define('PAGE_ADDRESS', $pageAddress . ((substr($pageAddress, -1) === '/' OR $pageAddress === '') ? 'index' : ''));
+define('PAGE_LINEAGE', explode('/', PAGE_ADDRESS));
+define('SERVICE', dirname(PAGE_ADDRESS));
+define('PAGE', basename(PAGE_ADDRESS, '.php'));
 
 $pageMetadata = [];
 function getPageInformations($pages, $pageElements) {
@@ -83,7 +85,7 @@ foreach(array_reverse(TITLES_LINEAGE) as $id => $title)
 ?></title>
 <?php
 foreach (glob('css/*.css') as $cssPath)
-	echo '		<link type="text/css" rel="stylesheet" media="screen" href="' . CONF['common']['prefix'] . '/' .  $cssPath . '">' . "\n";
+	echo '		<link type="text/css" rel="stylesheet" media="screen" href="' . CONF['common']['prefix'] . '/' .  $cssPath . '">' . LF;
 ?>
 		<meta name="viewport" content="width=device-width, initial-scale=1">
 	</head>
@@ -100,7 +102,7 @@ foreach (glob('css/*.css') as $cssPath)
 <?php
 foreach (TITLES_LINEAGE as $id => $title) {
 	$lastTitle = (TITLES_LINEAGE[array_key_last(TITLES_LINEAGE)] === $title);
-	echo '<ul><li>' . ($lastTitle ? '<h1>' : '') . '<a' . (($id === 0) ? ' class="niver"' : '') . ' href="' . CONF['common']['prefix'] . ($lastTitle ? '/' . PAGE_URL : '/' . implode('/', array_slice(PAGE_LINEAGE, 0, $id)) . (($lastTitle OR $id === 0) ? '' : '/')) . '">' . $title . '</a>' . ($lastTitle ? '</h1>' : '') . "\n";
+	echo '<ul><li>' . ($lastTitle ? '<h1>' : '') . '<a' . (($id === 0) ? ' class="niver"' : '') . ' href="' . CONF['common']['prefix'] . ($lastTitle ? '/' . PAGE_URL : '/' . implode('/', array_slice(PAGE_LINEAGE, 0, $id)) . (($lastTitle OR $id === 0) ? '' : '/')) . '">' . $title . '</a>' . ($lastTitle ? '</h1>' : '') . LF;
 }
 echo str_repeat('</li></ul>', count(TITLES_LINEAGE));
 ?>
@@ -114,7 +116,7 @@ if (in_array(SERVICE, ['reg', 'ns', 'ht']) AND CONF[SERVICE]['enabled'] !== true
 	output(403, 'Ce service est désactivé.');
 
 // Protect against cross-site request forgery if a POST request is received
-if (empty($_POST) === false AND (isset($_SERVER['HTTP_SEC_FETCH_SITE']) !== true OR $_SERVER['HTTP_SEC_FETCH_SITE'] !== "same-origin"))
+if (empty($_POST) === false AND (isset($_SERVER['HTTP_SEC_FETCH_SITE']) !== true OR $_SERVER['HTTP_SEC_FETCH_SITE'] !== 'same-origin'))
 	output(403, 'Anti-<abbr title="Cross-Site Request Forgery">CSRF</abbr> verification failed ! (Wrong or unset <code>Sec-Fetch-Site</code> HTTP header)');
 
 function displayFinalMessage() {
@@ -124,7 +126,7 @@ function displayFinalMessage() {
 }
 
 function executePage() {
-	require "pages/" . PAGE_ADDRESS . ".php";
+	require 'pages/' . PAGE_ADDRESS . '.php';
 
 	displayFinalMessage();
 ?>

sftpgo-auth.php

@@ -1,8 +1,8 @@
 <?php
 
-require "router.php";
+require 'router.php';
 
-$authData = json_decode(file_get_contents("php://input"), true);
+$authData = json_decode(file_get_contents('php://input'), true);
 
 if (userExist($authData['username']) === true AND checkPassword($authData['username'], $authData['password']) === true) {
 	$quotaSize = (query('select', 'users', ['username' => $authData['username']], 'type')[0] === 'trusted') ? CONF['ht']['user_quota_trusted'] : CONF['ht']['user_quota_testing'];