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SavvyWolf - MANAGER

Edit File: Binance_pay.php

<?php

class Binance_pay
{
    private $api_key;
    private $secret_key;
    private $timestamp;
    private $nonce;
    private $return_url;
    private $cancel_url;

public function __construct()
    {
        $this->timestamp = $this->timestamp();
        $this->nonce = $this->nonce();
        $this->return_url = $this->return_url();
        $this->cancel_url = $this->cancel_url();
    }

public function create_order($merchant_trade_no, $amount, $currency, $api_key, $secret_key, $goodsDetails) {

// Request body        
        if(stripos($merchant_trade_no, "R") !== false){
            $url = array(
                'returnUrl' => $goodsDetails['url']['returnUrl'],
                'cancelUrl' => $goodsDetails['url']['cancelUrl'],
            );
        }else{
            $url = array(
                'returnUrl' => $this->return_url, 
                'cancelUrl' => $this->cancel_url,
            );
        }
        unset($goodsDetails['url']);
        $request = [
            'env' => [
                'terminalType' => 'WEB',
            ],
            'merchantTradeNo' => $merchant_trade_no,
            'orderAmount' => $amount,
            'currency' => $currency,
            'returnUrl' => $url['returnUrl'],
            'cancelUrl' => $url['cancelUrl'],
            'goods' => $goodsDetails /*[
                'goodsType' => '01',
                'goodsCategory' => 'D000',
                'referenceGoodsId' => '7876763A3B',
                'goodsName' => 'Ice Cream',
                'goodsDetail' => 'Greentea ice cream cone',
            ]*/
        ];

$json_request = json_encode($request);
        $payload = $this->timestamp."\n".$this->nonce."\n".$json_request."\n";
        $signature = strtoupper(hash_hmac('SHA512', $payload, $secret_key));
        //$signature = strtoupper(hash_hmac('SHA512', $payload, $this->secret_key));

$headers[] = "Content-Type: application/json";
        $headers[] = "BinancePay-Timestamp: " . $this->timestamp;
        $headers[] = "BinancePay-Nonce: " . $this->nonce;
        $headers[] = "BinancePay-Certificate-SN: " . $api_key;
        //$headers[] = "BinancePay-Certificate-SN: " . $this->api_key;
        $headers[] = "BinancePay-Signature: $signature";

$ch = curl_init();
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_URL, "https://bpay.binanceapi.com/binancepay/openapi/v2/order");
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $json_request);

$result = curl_exec($ch);
        if (curl_errno($ch)) { echo 'Error:' . curl_error($ch); }
        curl_close ($ch);

$result = json_decode($result, true);
        return $result;
    }

public function query_order($merchant_trade_no, $api_key, $secret_key) {

// Request body
        $request = [
            'merchantTradeNo' => base64_decode($merchant_trade_no)
        ];

$json_request = json_encode($request);
        $payload = $this->timestamp."\n".$this->nonce."\n".$json_request."\n";
        $signature = strtoupper(hash_hmac('SHA512', $payload, $secret_key));

$ch = curl_init();
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_URL, "https://bpay.binanceapi.com/binancepay/openapi/v2/order/query");
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $json_request);

$result = curl_exec($ch);
        if (curl_errno($ch)) { echo 'Error:' . curl_error($ch); }
        curl_close ($ch);

$result = json_decode($result, true);
        return $result;
    }

private function timestamp() {
        return round(microtime(true) * 1000);
    }

private function nonce() {
        $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $nonce_str = '';
        for($i=1; $i <= 32; $i++)
        {
            $pos = mt_rand(0, strlen($chars) - 1);
            $char = $chars[$pos];
            $nonce_str .= $char;
        }
        return $nonce_str;
    }

private function dump($data) {
        echo '<pre>';print_r($data);die;
    }

private function debug() {
        echo time();die;
    }

public function return_url() {
        return base_url('page/order_placed?event=return'); //'https://codeunlocksource.com/binance-pay-api/callback.php?event=return';
    }

public function cancel_url() {
        return base_url('page/order_cancelled?event=cancel'); //'https://codeunlocksource.com/binance-pay-api/callback.php?event=cancel';
    }
}