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roshanbi
(@roshanbi)

2 years, 4 months ago
Hello Team,

I am developing a plugin to allow payment through myt money gateway from woocomerce.

First I have to create a payload, then encrypt same before using it in a form.

The merTradeNo will be unique (concatenation of orderId and other fields).

Kindly advise (1) how to set the unique value for merTradeNo (2) how can I retrieve the total cost from Woocomerce cost and set the totalAmount. (3) how will the form appear on the checkout page?

https://snipboard.io/HGB9vN.jpg

`$totalAmount=”0.01″
$appID=””;
$merTradeNo=””;
$paymentType=”S”
$publicKey=””;
$apiKey=””;

$payload=array(
“totalPrice”=>$totalAmount,
“currency”=>$merTradeNo,
“notifyURL”=>”https://www.myt.mu”,
“returnURL”=>”https://www.myt.mu”,
“remark”=>”This is a test payment”,
lang=>”en”
);

//code to generate signature
$payload=json_encode($payload);
$rsa= new \phpseclib\Crypt\RSA();
$rsa->setHash(‘sha1’);
$rsa->setMGFHash(‘sha1’);
$rsa->setEncryptionMode(RSA::ENCRYPTION_OAEP);
$rsa->setPublicKeyFormat(RSA::PUBLIC_FORMAT_PKCS1);
$rsa->loadKey($publickey);
$encryptedPayload=base64_encode($rsa->encrypt($payload));
$signaturedata=”appID&merTradeNo=$merTradeNo$merTradeNo&payload=$encryptedPayload&paymentType=$paymentType”;
$sign=base64_encode(hash_hmac(‘sha512’,$signaturedata,$apiKey,true));

<form action=”https://gateway.mytmoney.mu/web/payments” method=”post”>
<input type=”hidden” name=”appId” value=”<?php echo $appID; ?>”/>
<input type=”hidden” name=”merTradeNo” value=”<?php echo $merTradeNo; ?>”/>
<input type=”hidden” name=”payload” value=”<?php echo $encryptedPayload; ?>”/>
<input type=”hidden” name=”paymentType” value=”<?php echo $paymentType; ?>”/>
<input type=”hidden” name=”sign” value=”<?php echo $sign; ?>”/>
<p><input type=”submit” value=”Pay By my.t money”/></p>
</form>

//code that triggers the callback for single payment (paymentType = S) Is it hardcoded??
<form action=”https://transportation.local/callback_url” method=”post”>
<input type=”hidden” name=”merTradeNo” value=MT001/>
<input type=”hidden” name=”TradeNo” value=”123456″/>
<input type=”hidden” name=”tradeStatus” value=”S”/>
<input type=”hidden” name=”msg” value=”SUCCESS”/>
<input type=”hidden” name=”resultcode” value=”000″/>
<input type=”hidden” name=”sign” value=””/>
</form>

Thanks,

Roshan
- This topic was modified 2 years, 4 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Developing with WordPress topic

Viewing 2 replies - 1 through 2 (of 2 total)

Thread Starter

(@roshanbi)

Shall I add below code to the plugins PHP section and set $totalAmount to $this?

protected function calculate_totals() {
    $this->set_total( 'total', round( $this->get_total( 'items_total', true ) + $this->get_total( 'fees_total', true ) + $this->get_total( 'shipping_total', true ) + wc_round_tax_total( array_sum( $this->get_merged_taxes( true ) ), 0 ), 0 ) );
    $this->cart->set_total_tax( array_sum( $this->get_merged_taxes( false ) ) );
 
    // Allow plugins to hook and alter totals before final total is calculated.
    if ( has_action( 'woocommerce_calculate_totals' ) ) {
        do_action( 'woocommerce_calculate_totals', $this->cart );
    }
 
    // Allow plugins to filter the grand total, and sum the cart totals in case of modifications.
    $this->cart->set_total( max( 0, apply_filters( 'woocommerce_calculated_total', $this->get_total( 'total' ), $this->cart ) ) );
}