<?php
namespace HeroQR\DataTypes;
use HeroQR\Contracts\DataTypes\AbstractDataType;
/**
* Validates Wi-Fi credentials for QR Code.
* Format: WIFI:T:<encryption>;S:<SSID>;P:<password>;
* Encryption types: WPA, WPA2, WEP, nopass, WPA/WPA2-Personal (treated as WPA2)
* Checks SSID length/characters and password rules based on encryption type.
* Example: WIFI:T:WPA2;S:MyNetwork;P:password123;
*/
class WifiValidator extends AbstractDataType
{
public static function validate(string $data): bool
{
$wifiString = trim($data);
$pattern = '/^WIFI:T:(WPA|WPA2|WEP|nopass|WPA\/WPA2-Personal);S:([^;]+);(?:P:([^;]*))?;$/';
if (empty($wifiString) || !preg_match($pattern, $wifiString, $matches)) {
return false;
}
list(, $encryptionType, $ssid, $password) = $matches;
if ($encryptionType === 'WPA/WPA2-Personal') {
$encryptionType = 'WPA2';
}
if (strlen($ssid) > 32 || preg_match('/[;:]/', $ssid)) {
return false;
}
if (in_array($encryptionType, ['WPA', 'WPA2'])) {
if (empty($password) || strlen($password) < 8 || strlen($password) > 63) {
return false;
}
}
if ($encryptionType === 'WEP') {
if (empty($password) || !in_array(strlen($password), [10, 26]) || !ctype_xdigit($password)) {
return false;
}
}
if ($encryptionType === 'nopass') {
if (!empty($password)) {
return false;
}
}
return true;
}
}
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