add code to existing wordpress page

Hello there!

Can you be more specific about your goal here? There might be a cleaner way to achieve what you’re trying than adding all that code.

WordPress editor allows you to add custom HTML code to a page, but I can see you also have PHP and Javascript code there and even trying to retrieve some data from URL. Please let us know more about what you’re going for.

Best regards,
Farid.

Hello Farid,

I would like to create a payment plugin on Woocommerce. I have attached the mytmoney.php file. The plugin shall redirect to another page (redirect).

Please find below the flow
https://snipboard.io/vSgh01.jpg
https://snipboard.io/hivauL.jpg

1. can you please validate the code? is there a simpler way?

2. Where should I add the redirect page?

mytmoney.php:

<?php

 
defined( 'ABSPATH' ) or exit;

// Make sure WooCommerce is active
if ( ! in_array( 'woocommerce/woocommerce.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) ) ) {
	return;
}

function wc_offline_add_to_gateways( $gateways ) {
	$gateways[] = 'WC_Gateway_Offline';
	return $gateways;
}
add_filter( 'woocommerce_payment_gateways', 'wc_offline_add_to_gateways' );

function wc_offline_gateway_plugin_links( $links ) {

	$plugin_links = array(
		'<a href="' . admin_url( 'admin.php?page=wc-settings&tab=checkout&section=offline_gateway' ) . '">' . __( 'Configure', 'wc-gateway-offline' ) . '</a>'
	);

	return array_merge( $plugin_links, $links );
}
add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), 'wc_offline_gateway_plugin_links' );

/**
 * Offline Payment Gateway
 *

 */
add_action( 'plugins_loaded', 'wc_offline_gateway_init', 11 );

function wc_offline_gateway_init() {

	class WC_Gateway_Offline extends WC_Payment_Gateway {

		/**
		 * Constructor for the gateway.
		 */
		public function __construct() {
	  
			$this->id                 = 'offline_gateway';
			$this->icon               = apply_filters('woocommerce_offline_icon', '');
			$this->has_fields         = false;
			$this->method_title       = __( 'Offline', 'wc-gateway-offline' );
			$this->method_description = __( 'Allows offline payments. Very handy if you use your cheque gateway for another payment method, and can help with testing. Orders are marked as "on-hold" when received.', 'wc-gateway-offline' );
		  
			// Load the settings.
			$this->init_form_fields();
			$this->init_settings();
		  
			// Define user set variables
			$this->title        = $this->get_option( 'title' );
			$this->description  = $this->get_option( 'description' );
			$this->instructions = $this->get_option( 'instructions', $this->description );
		  
			// Actions
			add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );
			add_action( 'woocommerce_thankyou_' . $this->id, array( $this, 'thankyou_page' ) );
		  
			// Customer Emails
			add_action( 'woocommerce_email_before_order_table', array( $this, 'email_instructions' ), 10, 3 );
		}
	
	
		/**
		 * Initialize Gateway Settings Form Fields
		 */
		public function init_form_fields() {
	  
			$this->form_fields = apply_filters( 'wc_offline_form_fields', array(
		  
				'enabled' => array(
					'title'   => __( 'Enable/Disable', 'wc-gateway-offline' ),
					'type'    => 'checkbox',
					'label'   => __( 'Enable Offline Payment', 'wc-gateway-offline' ),
					'default' => 'yes'
				),
				
				'title' => array(
					'title'       => __( 'Title', 'wc-gateway-offline' ),
					'type'        => 'text',
					'description' => __( 'This controls the title for the payment method the customer sees during checkout.', 'wc-gateway-offline' ),
					'default'     => __( 'Myt Money', 'wc-gateway-offline' ),
					'desc_tip'    => true,
				),
				
				'description' => array(
					'title'       => __( 'Description', 'wc-gateway-offline' ),
					'type'        => 'textarea',
					'description' => __( 'Payment method description that the customer will see on your checkout.', 'wc-gateway-offline' ),
					'default'     => __( 'Please remit payment to Store Name upon pickup or delivery.', 'wc-gateway-offline' ),
					'desc_tip'    => true,
				),
				
				'instructions' => array(
					'title'       => __( 'Instructions', 'wc-gateway-offline' ),
					'type'        => 'textarea',
					'description' => __( 'Instructions that will be added to the thank you page and emails.', 'wc-gateway-offline' ),
					'default'     => '',
					'desc_tip'    => true,
				),
			) );
		}
	
	
		/**
		 * Output for the order received page.
		 */
		public function thankyou_page() {
			if ( $this->instructions ) {
				echo wpautop( wptexturize( $this->instructions ) );
			}
		}
	
	
		/**
		 * Add content to the WC emails.
		 *
		 * @access public
		 * @param WC_Order $order
		 * @param bool $sent_to_admin
		 * @param bool $plain_text
		 */
		public function email_instructions( $order, $sent_to_admin, $plain_text = false ) {
		
			if ( $this->instructions && ! $sent_to_admin && $this->id === $order->payment_method && $order->has_status( 'on-hold' ) ) {
				echo wpautop( wptexturize( $this->instructions ) ) . PHP_EOL;
			}
		}
	
	
		/**
		 * Process the payment and return the result
		 *
		 * @param int $order_id
		 * @return array
		 */
		public function process_payment( $order_id ) {
	
			$order = wc_get_order( $order_id );
			
			//test merTradeNo added on 1 July 2022 @roshanbi
			$merTradeNo->billing_first_name ." ".$merTradeNo->billing_last_name .", ".$merTradeNo->billing_address_1.$merTradeNo->billing_address_2 . ", " .$merTradeNo->billing_postcode." ". $merTradeNo->billing_city. ", ". $merTradeNo->billing_state;
			
			// Mark as on-hold (we're awaiting the payment)
			$order->update_status( 'on-hold', __( 'Awaiting offline payment', 'wc-gateway-offline' ) );
			
			// Reduce stock levels
			$order->reduce_order_stock();
			
			// Remove cart
			WC()->cart->empty_cart();
			
			// Return thankyou redirect
			return array(
				'result' 	=> 'success',
				'redirect'	=> $this->get_return_url( $order )
			);
			
			//total amount added on 1 July 2022 1:52 pm
			      $totalAmount = $order->get_total();
			
			//RSA and payload details added on 1 July 2022
			/*$totalAmount="0.01" */
			$appID="1000000661";
			/*$merTradeNo=""; */
			$paymentType="S";
			$publicKey="MbZeRuwzPGFY9c==";
			$apiKey="BH+0FycxCOvF1KvOoZlA==";

			$payload=array(
			"totalPrice"=>$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 \wamp642\www\transportation\wordpress\wp-content\phpseclib\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));
			
			
			//initiate payment
			$response = $moovpay->purchase($appID,$merTradeNo,$encryptedPayload,$paymentType,$sign);
			$fh = fopen(plugin_dir_path(__FILE__).'redirect.php', 'w+');
			fwrite($fh, $response);
			fclose($fh);
			$redirect_url = plugin_dir_url(__FILE__).'redirect.php';
  
			return array(
			'result' => 'success',
			'redirect' => $redirect_url
			);
		}
		
		//function below calculates total and sets in a variable. Added on 1 July 2022 @roshanbi
		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 ) ) );
}

public function webhook() {
      header( 'HTTP/1.1 200 OK' );
      $order_id = isset($_REQUEST['order_id']) ? $_REQUEST['order_id'] : null;
      $nonce = isset($_REQUEST['nonce']) ? $_REQUEST['nonce'] : null;
      if (is_null($order_id)) return;
      if (is_null($nonce)) return;
      if (wc_get_order_item_meta($order_id,'ipn_nonce')!=$nonce) return;
      $order = wc_get_order( $order_id );
      $order->payment_complete();
      wc_reduce_stock_levels($order_id);
    }
	
  } // end \WC_Gateway_Offline class
}

Redirect.php:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="https://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
        
    <form id="redirectForm" action="https://gateway.mytmoney.mu/web/payments" method="post">
		<input type="hidden" name="appId" value="<?php echo $_GET[ 'appID' ]; ?>"/>
		<input type="hidden" name="merTradeNo" value="<?php echo $_GET[ 'merTradeNo' ]; ?>"/>
		<input type="hidden" name="payload" value="<?php echo $_GET[ 'encryptedPayload' ]; ?>"/> 
		<input type="hidden" name="paymentType" value="<?php echo $_GET[ 'paymentType' ]; ?>"/>
		<input type="hidden" name="sign" value="<?php echo $_GET[ 'sign' ]; ?>"/>
		<p><input type="submit" value="Pay By my.t money"/></p>
		</form>

<form action="https://transaportation.local/my-account" 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>
<script type="text/javascript">
    document.all.redirectForm.submit();
</script>   
</body>
</html>

Thanks,

Roshan

I think you could achieve that by creating a WordPress page called ‘redirect’ and then creating a function that adds your code to that page.

The following functions will be helpful:

• wp_insert_post
• is_page
• the_content

Hope that is helpful to you.

Best regards,
Farid.