use billing address if shipping address is not given

class-wc-gnutaler-gateway.php

@@ -9,7 +9,7 @@
  * Plugin Name: GNU Taler Payment for WooCommerce
  * Plugin URI: https://git.taler.net/woocommerce-taler
  * Description: This plugin enables payments via the GNU Taler payment system
- * Version: 0.9.3
+ * Version: 0.9.4
  * Author: Dominique Hofmann, Jan Strübin, Christian Grothoff
  * Author URI: https://taler.net/
  *
@@ -790,11 +790,51 @@ function gnutaler_init_gateway_class() {
 			$shipping_address_street    = '';
 			$shipping_address_street_nr = '';
 
-			$store_address          = $wc_order->get_shipping_address_1();
+			$store_address          = $wc_order->get_shipping_address_1( $context = 'view' );
+			if ( is_null( $store_address ) || empty( $store_address ) )
+			     $store_address     = $wc_order->get_billing_address_1( $context = 'view' );
 			$store_address_inverted = strrev( $store_address );
 			$store_address_array    = str_split( $store_address_inverted );
+			$country 		= $wc_order->get_shipping_country ($context = 'view');
+			if ( is_null( $country ) || empty( $country ) )
+			     $country 	        = $wc_order->get_billing_country ($context = 'view');
+			$state			= $wc_order->get_shipping_state ($context = 'view');
+			if ( is_null( $state ) || empty( $state ) )
+			     $state 	        = $wc_order->get_billing_state ($context = 'view');
+			$city			= $wc_order->get_shipping_city ($context = 'view');
+			if ( is_null( $city ) || empty( $city ) )
+			     $city 	        = $wc_order->get_billing_city ($context = 'view');
+			$postcode 		= $wc_order->get_shipping_postcode ($context = 'view');
+			if ( is_null( $postcode ) || empty( $postcode ) )
+			     $postcode 	        = $wc_order->get_billing_postcode ($context = 'view');
+					
+			$this->info (
+				    sprintf(
+					'Shipping address is %s - %s - %s - %s - %s',
+					$store_address,
+					$wc_order->get_shipping_country ($context = 'view'),
+					$wc_order->get_shipping_state ($context = 'view'),
+					$wc_order->get_shipping_city ($context = 'view'),
+					$wc_order->get_shipping_postcode ($context = 'view')) );
+					
+			$this->info (
+				    sprintf(
+    				'Billing address is %s - %s - %s - %s - %s',
+					$store_address,
+					$wc_order->get_billing_country ($context = 'view'),
+					$wc_order->get_billing_state ($context = 'view'),
+					$wc_order->get_billing_city ($context = 'view'),
+					$wc_order->get_billing_postcode ($context = 'view')) );
+			$this->info (
+				    sprintf(
+    				'Using address is %s - %s - %s - %s - %s',
+					$store_address,
+					$country,
+					$state,
+					$city,
+					$postcode));
 
-			// Split the address into street and street number.
+		        // Split the address into street and street number.
 			foreach ( $store_address_array as $char ) {
 				if ( ! $whitechar_encounter ) {
 					$shipping_address_street .= $char;
@@ -805,10 +845,10 @@ function gnutaler_init_gateway_class() {
 				}
 			}
 			$ret = array(
-				'country'             => $wc_order->get_shipping_country(),
-				'country_subdivision' => $wc_order->get_shipping_state(),
-				'town'                => $wc_order->get_shipping_city(),
-				'post_code'           => $wc_order->get_shipping_postcode(),
+				'country'             => $country,
+				'country_subdivision' => $state,
+				'town'                => $city,
+				'post_code'           => $postcode,
 				'street'              => $shipping_address_street,
 				'building_number'     => $shipping_address_street_nr,
 			);

readme.txt

@@ -45,6 +45,10 @@ A: For the plugin to work correctly you need to have the WooCommerce plugin inst
 
 == Changelog ==
 
+= 0.9.4 =
+
+* Use billing address in contract if shipping address is not given
+
 = 0.9.3 =
 
 * Fix log logic