* * This source file is subject to the MIT license that is bundled * with this source code in the file LICENSE. */ namespace EasyWeChat\Kernel\Support; /* * helpers. * * @author overtrue */ /** * Generate a signature. * * @param string $key * @param string $encryptMethod * * @return string */ function generate_sign(array $attributes, $key, $encryptMethod = 'md5') { ksort($attributes); $attributes['key'] = $key; return strtoupper(call_user_func_array($encryptMethod, [urldecode(http_build_query($attributes))])); } /** * @return \Closure|string */ function get_encrypt_method(string $signType, string $secretKey = '') { if ('HMAC-SHA256' === $signType) { return function ($str) use ($secretKey) { return hash_hmac('sha256', $str, $secretKey); }; } return 'md5'; } /** * Get client ip. * * @return string */ function get_client_ip() { if (!empty($_SERVER['REMOTE_ADDR'])) { $ip = $_SERVER['REMOTE_ADDR']; } else { // for php-cli(phpunit etc.) $ip = defined('PHPUNIT_RUNNING') ? '127.0.0.1' : gethostbyname(gethostname()); } return filter_var($ip, FILTER_VALIDATE_IP) ?: '127.0.0.1'; } /** * Get current server ip. * * @return string */ function get_server_ip() { if (!empty($_SERVER['SERVER_ADDR'])) { $ip = $_SERVER['SERVER_ADDR']; } elseif (!empty($_SERVER['SERVER_NAME'])) { $ip = gethostbyname($_SERVER['SERVER_NAME']); } else { // for php-cli(phpunit etc.) $ip = defined('PHPUNIT_RUNNING') ? '127.0.0.1' : gethostbyname(gethostname()); } return filter_var($ip, FILTER_VALIDATE_IP) ?: '127.0.0.1'; } /** * Return current url. * * @return string */ function current_url() { $protocol = 'http://'; if ((!empty($_SERVER['HTTPS']) && 'off' !== $_SERVER['HTTPS']) || ($_SERVER['HTTP_X_FORWARDED_PROTO'] ?? 'http') === 'https') { $protocol = 'https://'; } return $protocol.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']; } /** * Return random string. * * @param string $length * * @return string */ function str_random($length) { return Str::random($length); } /** * @param string $content * @param string $publicKey * * @return string */ function rsa_public_encrypt($content, $publicKey) { $encrypted = ''; openssl_public_encrypt($content, $encrypted, openssl_pkey_get_public($publicKey), OPENSSL_PKCS1_OAEP_PADDING); return base64_encode($encrypted); }