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<?php
namespace App\Utility;
class NagadUtility {
/**
* Generate Random string
*/
public static function generateRandomString($length = 40)
{
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charactersLength = strlen($characters);
$randomString = '';
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[rand(0, $charactersLength - 1)];
}
return $randomString;
}
/**
* Generate public key
*/
public static function EncryptDataWithPublicKey($data)
{
$pgPublicKey = env('NAGAD_PG_PUBLIC_KEY');
$public_key = "-----BEGIN PUBLIC KEY-----\n" . $pgPublicKey . "\n-----END PUBLIC KEY-----";
// echo $public_key;
// exit();
$key_resource = openssl_get_publickey($public_key);
openssl_public_encrypt($data, $crypttext, $key_resource);
return base64_encode($crypttext);
}
/**
* Generate signature
*/
public static function SignatureGenerate($data)
{
$merchantPrivateKey = env('NAGAD_MERCHANT_PRIVATE_KEY');
$private_key = "-----BEGIN RSA PRIVATE KEY-----\n" . $merchantPrivateKey . "\n-----END RSA PRIVATE KEY-----";
// echo $private_key;
// exit();
openssl_sign($data, $signature, $private_key, OPENSSL_ALGO_SHA256);
return base64_encode($signature);
}
/**
* get clinet ip
*/
public static function get_client_ip()
{
$ipaddress = '';
if (isset($_SERVER['HTTP_CLIENT_IP']))
$ipaddress = $_SERVER['HTTP_CLIENT_IP'];
else if (isset($_SERVER['HTTP_X_FORWARDED_FOR']))
$ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
else if (isset($_SERVER['HTTP_X_FORWARDED']))
$ipaddress = $_SERVER['HTTP_X_FORWARDED'];
else if (isset($_SERVER['HTTP_FORWARDED_FOR']))
$ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
else if (isset($_SERVER['HTTP_FORWARDED']))
$ipaddress = $_SERVER['HTTP_FORWARDED'];
else if (isset($_SERVER['REMOTE_ADDR']))
$ipaddress = $_SERVER['REMOTE_ADDR'];
else
$ipaddress = 'UNKNOWN';
return $ipaddress;
}
public static function DecryptDataWithPrivateKey($crypttext)
{
$merchantPrivateKey = env('NAGAD_MERCHANT_PRIVATE_KEY');
$private_key = "-----BEGIN RSA PRIVATE KEY-----\n" . $merchantPrivateKey . "\n-----END RSA PRIVATE KEY-----";
openssl_private_decrypt(base64_decode($crypttext), $plain_text, $private_key);
return $plain_text;
}
public static function HttpPostMethod($PostURL, $PostData)
{
$url = curl_init($PostURL);
$posttoken = json_encode($PostData);
$header = array(
'Content-Type:application/json',
'X-KM-Api-Version:v-0.2.0',
'X-KM-IP-V4:' . self::get_client_ip(),
'X-KM-Client-Type:PC_WEB'
);
curl_setopt($url, CURLOPT_HTTPHEADER, $header);
curl_setopt($url, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($url, CURLOPT_RETURNTRANSFER, true);
curl_setopt($url, CURLOPT_POSTFIELDS, $posttoken);
curl_setopt($url, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($url, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($url, CURLOPT_SSL_VERIFYPEER, 0);
$resultdata = curl_exec($url);
$ResultArray = json_decode($resultdata, true);
curl_close($url);
return $ResultArray;
}
public static function HttpGet($url)
{
$ch = curl_init();
$timeout = 10;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/0 (Windows; U; Windows NT 0; zh-CN; rv:3)");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$file_contents = curl_exec($ch);
echo curl_error($ch);
curl_close($ch);
return $file_contents;
}
}