eway payment gateway for wpmu membership plugin

gistfile1.txt

<?php
/*
Addon Name: eWAY payment plugin
Author: Mike Mills (Incsub)
Author URI: http://premium.wpmudev.org
Gateway ID: eway
*/

class eway extends M_Gateway {

  var $gateway = 'eway';
	var $title = 'eWAY';

	function api_call($url, $fields) {
	  global $mp;

	  $param_list = array();
    foreach ($fields as $k => $v) {
      $param_list[] = "{$k}=".rawurlencode($v);
    }

    $url .= '?' . implode('&', $param_list);
		
	  //build args
	  $args['user-agent'] = "Membership/3.0.0: http://premium.wpmudev.org/project/membership | eWAY Payment plugin/1.1";
	  $args['sslverify'] = false;
	  $args['timeout'] = 60;

	  //use built in WP http class to work with most server setups
	  $response = wp_remote_get($url, $args);
	  if (is_wp_error($response) || wp_remote_retrieve_response_code($response) != 200) {
	    $mp->cart_checkout_error( __('There was a problem connecting to eWay. Please try again.', 'mp') );
	    return false;
	  } else {
	    return $response['body'];
	  }
	}

	function eWAY() {
		parent::M_Gateway();

		add_action('M_gateways_settings_' . $this->gateway, array(&$this, 'mysettings'));

		// If I want to override the transactions output - then I can use this action
		//add_action('M_gateways_transactions_' . $this->gateway, array(&$this, 'mytransactions'));

		if($this->is_active()) {
			// Subscription form gateway
			add_action('membership_purchase_button', array(&$this, 'display_subscribe_button'), 1, 3);

			add_action('membership_token_redirect', array(&$this, 'display_subscribe_button'), 1, 3);

			// Payment return
			add_action('membership_handle_payment_return_' . $this->gateway, array(&$this, 'handle_eway_return'));
			
			add_filter('membership_gateway_exp_window', array(&$this,'eway_expiration_window'));
			
			add_action('membership_mark_for_expire', array(&$this,'remove_recurring_line_item'), null, 2);
		}

	}
	function eway_expiration_window($time) {
		//payment will sometimes send notifications up to 24 hours after a subscription expires, so we need to adjust the window.
		return "+ 24 hours";
	}
	function remove_recurring_line_item($sub_id, $user_id) {

		$invoice_id = $this->db->get_var( $this->db->prepare( "SELECT transaction_paypal_ID FROM {$this->subscription_transaction} WHERE transaction_subscription_ID = %s AND transaction_user_ID = %s AND transaction_gateway = %s LIMIT 1", $sub_id, $user_id, $this->gateway ) );
		
		if(empty($invoice_id) || !$invoice_id) {
			// Don't really know what else to do if we can't find the Invoice ID besides echo an error.
			echo '<div class="alert alert-error">'.__('Invoice ID could not be determined','membership').'</div>';
		} else {
			$args = array();
	
			$args['headers'] = array(
				'Authorization' => 'Basic '.base64_encode(get_option( $this->gateway . "_eway_username" )),
				'Accept' => 'application/json',
			);
	
			$args['user-agent'] = "Membership/3.0.0: http://premium.wpmudev.org/project/membership | eWAY Payment plugin/1.1";
			$args['body'] = array('invoice_id' => $invoice_id);
			$args['sslverify'] = false;
			$args['timeout'] = 30;
	
			$endpoint = "https://au.ewaygateway.com/Request";
	
			$response = wp_remote_post($endpoint, $args);
			
			if (is_wp_error($response) || (wp_remote_retrieve_response_code($response) != 200 && wp_remote_retrieve_response_code($response) != 400)) {
				print '<div class="alert alert-error">'.__('There was a problem connecting to eWAY. Please try again.', 'membership').'</div>';
			} else {
				$response_obj = json_decode($response['body']);
				
				$lineitem_id = false;
				$product_id = false;
				
				$subscription = new M_Subscription($sub_id);
				if($subscription) {
					$product_id = $this->get_product_id($subscription, $subscription->get_pricingarray());
				}
				
				if ($response_obj->response_code == "OK" && $product_id != false) {
					//$product_id = $response_obj->assigned_product_id;
					foreach($response_obj->sale->invoices as $invoice) {
						foreach($invoice->lineitems as $lineitem) {
							if($lineitem->product_id == $product_id)
								$lineitem_id = $lineitem->lineitem_id;
						}
					}
				}
				
				
				if($lineitem_id == false) {
					print '<div class="alert alert-error">'.__('There was a problem finding your transaction in eWAY.  Please contact an administrator.', 'membership').'</div>';

				} else {
					$args = array();
					$args['headers'] = array(
						'Authorization' => 'Basic '.base64_encode(get_option( $this->gateway . "_eway_username" )),
						'Accept' => 'application/json',
					);
			
					$args['user-agent'] = "Membership/3.0.0: http://premium.wpmudev.org/project/membership | eWAY Payment plugin/1.1";
					$args['body'] = array('lineitem_id' => $lineitem_id);
					$args['sslverify'] = false;
					$args['timeout'] = 30;
					
					$endpoint = "https://api.ewaypayments.com/CreateAccessCode.json";
	
					$stop_response = wp_remote_post($endpoint, $args);
					
					if (is_wp_error($stop_response) || (wp_remote_retrieve_response_code($stop_response) != 200 && wp_remote_retrieve_response_code($stop_response) != 400)) {
						print '<div class="alert alert-error">'.__('There was a problem connecting to eWAY. Please try again.', 'membership').'</div>';
					} else {
						$stop_response_obj = json_decode($stop_response['body']);
						
						if ($response_obj->response_code !== "OK" ) {
							print '<div class="alert alert-error">'.__('An unknown error prevented eWAY from canceling your payment. Please contact an administrator or cancel your payment from the eWAY website.', 'membership').'</div>';
						} else {
							print '<div class="alert alert-success">'.__('Your recurring payment has been canceled successfully', 'membership').'</div>';
						}
					}
				}
				
			}
		}
		
	}
	function mysettings() {
		global $M_options, $M_membership_url;

		?>
		<table class="form-table">
		<tbody>
		  <tr valign="top">
		  	<th scope="row" colspan="2"><div class="updated below-h2"><p><?php _e('In order for recurring payments to log properly you must enable your global instant notifications url pointing to '.home_url('paymentreturn/' . esc_attr($this->gateway)).' ', 'membership') ?></p></div></th>
		  </tr>
		  <tr valign="top">
		  	<th scope="row"><?php _e('eWAY Username', 'membership') ?></th>
		  	<td><input type="text" name="eway_username" value="<?php esc_attr_e(get_option( $this->gateway . "_eway_username" )); ?>" />
		  </td>
		  </tr>
		  <tr valign="top">
		  <th scope="row"><?php _e('eWAY Customer ID', 'membership') ?></th>
		  <td><input type="text" name="eway_sid" value="<?php esc_attr_e(get_option( $this->gateway . "_eway_sid" )); ?>" />
		  </td>
		  </tr>
		  <tr valign="top">
		  <th scope="row"><?php _e('eWAY Currency', 'membership') ?></th>
		  <td><?php
			if(empty($M_options['paymentcurrency'])) {
				$M_options['paymentcurrency'] = 'AUD';
			}
			echo esc_html($M_options['paymentcurrency']); ?></td>
		  </tr>
		  <tr valign="top">
		  <th scope="row"><?php _e('eWAY Mode', 'membership') ?></th>
		  <td><select name="eway_status">
		  <option value="live" <?php if (get_option( $this->gateway . "_eway_status" ) == 'live') echo 'selected="selected"'; ?>><?php _e('Live Site', 'membership') ?></option>
		  <option value="test" <?php if (get_option( $this->gateway . "_eway_status" ) == 'test') echo 'selected="selected"'; ?>><?php _e('Test Mode (Sandbox)', 'membership') ?></option>
		  </select>
		  <br />
		  </td>
		  </tr>
		  
		<tr valign="top">
			<th scope="row"><?php _e('eWAY Language', 'membership') ?></th>
			<td>
				<select name="eway_lang">
					<?php $lang = get_option($this->gateway.'_eway_lang'); ?>
					<option value="en" <?php selected($lang,'en'); ?>><?php _e('English','membership') ?></option>
					<option value="zh" <?php selected($lang,'zh'); ?>><?php _e('Chinese','membership') ?></option>
					<option value="da" <?php selected($lang,'da'); ?>><?php _e('Danish','membership') ?></option>
					<option value="fr" <?php selected($lang,'fr'); ?>><?php _e('French','membership') ?></option>
					<option value="gr" <?php selected($lang,'gr'); ?>><?php _e('German','membership') ?></option>
					<option value="el" <?php selected($lang,'el'); ?>><?php _e('Greek','membership') ?></option>
					<option value="it" <?php selected($lang,'it'); ?>><?php _e('Italian','membership') ?></option>
					<option value="jp" <?php selected($lang,'jp'); ?>><?php _e('Japanese','membership') ?></option>
					<option value="no" <?php selected($lang,'no'); ?>><?php _e('Norwegian','membership') ?></option>
					<option value="pt" <?php selected($lang,'pt'); ?>><?php _e('Portuguese','membership') ?></option>
					<option value="sl" <?php selected($lang,'sl'); ?>><?php _e('Slovenian','membership') ?></option>
					<option value="es_ib" <?php selected($lang,'es_ib'); ?>><?php _e('Spanish','membership') ?></option>
					<option value="es_la" <?php selected($lang,'es_la'); ?>><?php _e('Spanish (Latin America)','membership') ?></option>
					<option value="sv" <?php selected($lang,'sv'); ?>><?php _e('Swedish','membership') ?></option>
				</select>
				<br />
			</td>
		</tr>
		  
		  <tr valign="top">
		  <th scope="row"><?php _e('Skip Order Review Page', 'membership') ?></th>
		  <td><select name="eway_skip_landing">
		  <?php $skip = get_option($this->gateway.'_eway_skip_landing'); ?>
		  <option value="1" <?php selected($skip,'1'); ?>><?php _e('Yes','membership') ?></option>
		  <option value="0" <?php selected($skip,'0'); ?>><?php _e('No','membership') ?></option>
		  </select>
		  <br />
		  </td>
		  </tr>
		  
		  <tr valign="top">
		  <th scope="row"><?php _e('Checkout Style', 'membership') ?></th>
		  <td><select name="eway_checkout_type">
		  <?php $checkout_type = get_option($this->gateway.'_eway_checkout_type'); ?>
		  <option value="multi" <?php selected($checkout_type,'multi'); ?>><?php _e('Multi Page Checkout','membership') ?></option>
		  <option value="single" <?php selected($checkout_type,'single'); ?>><?php _e('Single Page Checkout','membership') ?></option>
		  </select>
		  <br />
		  </td>
		  </tr>
		  
		  <tr valign="top">
		  <th scope="row"><?php _e('Subscription button', 'membership') ?></th>
		  <?php
		  	$button = get_option( $this->gateway . "_eway_button", $M_membership_url.'membershipincludes/images/eway-logo.png');
		  ?>
		  <td><input type="text" name="eway_button" value="<?php esc_attr_e($button); ?>" style='width: 40em;' />
		  <br />
		  </td>
		  </tr>

			<tr>
				<th scope="row"><?php _e('Email Customer (on success)', 'membership') ?></th>
				<td><select name="email_customer">
					<?php
					    $sel_mode = get_option( $this->gateway . "_email_customer", "yes" );
					    $modes = array(
						'yes'	=> __('Yes', 'membership'),
						'no'	=> __('No', 'membership')
						);
					    foreach ($modes as $key => $value) {
							      echo '<option value="' . esc_attr($key) . '"';
							      if($key == $sel_mode) echo 'selected="selected"';
							      echo '>' . esc_html($value) . '</option>' . "\n";
					    }
					?>
					</select>
				</td>
			</tr>
			<tr>
				<th scope="row"><?php _e('Customer Receipt Email Header', 'membership') ?></th>
				<td><input type="text" name="header_email_receipt" value="<?php esc_attr_e(get_option( $this->gateway . "_header_email_receipt", __("Thanks for your payment!", "membership"))); ?>" /></td>
			</tr>
			<tr>
				<th scope="row"><?php _e('Customer Receipt Email Footer', 'membership') ?></th>
				<td><input type="text" name="footer_email_receipt" value="<?php esc_attr_e(get_option( $this->gateway . "_footer_email_receipt", "" )); ?>" /></td>
			</tr>

		</tbody>
		</table>
		<?php
	}
	
	
	function update() {

		if(isset($_POST['eway_sid'])) {
			update_option( $this->gateway . "_eway_username", $_POST[ 'eway_username' ] );
			update_option( $this->gateway . "_eway_sid", $_POST[ 'eway_sid' ] );
			update_option( $this->gateway . "_currency", $_POST[ 'currency' ] );
			update_option( $this->gateway . "_eway_status", $_POST[ 'eway_status' ] );
			update_option( $this->gateway . "_eway_button", $_POST[ 'eway_button' ] );
			update_option( $this->gateway . "_eway_lang", $_POST[ 'eway_lang' ] );
			update_option( $this->gateway . "_eway_skip_landing", $_POST[ 'eway_skip_landing' ] );
			update_option( $this->gateway . "_eway_checkout_type", $_POST[ 'eway_checkout_type' ] );
		}

		// default action is to return true
		return true;

	}
	
	function build_custom($user_id, $sub_id, $amount) {
		$custom = '';

		$custom = time() . ':' . $user_id . ':' . $sub_id . ':';
		$key = md5('MEMBERSHIP' . $amount);
		$custom .= $key;
		return $custom;
	}

	/**
	 * Get product ID
	 *
	 * Search for the product, on failure to find it add it and return the
	 * new product id. If found return the product id.
	 *
	 * @param	Object	$subscription	Subscription
	 * @param	Array	$pricing	Pricing plan
	 * @return	Integer	$product_id
	 */
	function get_product_id($subscription, $pricing) {
		$product_id = 0;

		$args = array();

		$args['headers'] = array(
			'Authorization' => 'Basic '.base64_encode(get_option( $this->gateway . "_eway_username" )),
			'Accept' => 'application/json',
		);

		$args['user-agent'] = "Membership/3.0.0: http://premium.wpmudev.org/project/membership | eWAY Payment plugin/1.1";
		$args['body'] = array('product_id' => $subscription->sub_id());
		$args['sslverify'] = false;
		$args['timeout'] = 10;

		$endpoint = "https://au.ewaygateway.com/Request";
		
		$response = wp_remote_post($endpoint."list_products", $args);

		if (is_wp_error($response) || (wp_remote_retrieve_response_code($response) != 200 && wp_remote_retrieve_response_code($response) != 400)) {
			print __('There was a problem connecting to eWAY. Please try again. REF:'.wp_remote_retrieve_response_code($response), 'membership');
		} else {
			$response_obj = json_decode($response['body']);

			$found = false;

			if ($response_obj->products && is_array($response_obj->products) && count($response_obj->products) > 0) {
				foreach ($response_obj->products as $product) {
					if ($subscription->sub_id() == $product->vendor_product_id) {
						$found = true;
						break;
					}
				}
			}

			if (!$found) {
				if (count($pricing) < 2) {
					$bargs = array(
						'name' => $subscription->sub_name(),
						'description' => $subscription->sub_description(),
						'vendor_product_id' => $subscription->sub_id(),
						'approved_url' => trailingslashit(get_option('home')) . 'paymentreturn/' . esc_attr($this->gateway),
						'tangible' => 0,
						'price' => number_format($pricing[0]['amount'], 2),
					);


					if (isset($pricing[0]['type']) && $pricing[0]['type'] == 'serial') {
						$bargs['recurring'] = 1;
						$bargs['recurrence'] = $this->convert_duration($pricing[0]['period'], $pricing[0]['unit']);
						$bargs['duration'] = 'Forever';
					}

					$body = array();

					foreach ($bargs as $bkey => $bval) {
						$body[$bkey] = $bval;
					}

					$args['body'] = $body;

					$response = wp_remote_post($endpoint."create_product", $args);

					if (is_wp_error($response) || (wp_remote_retrieve_response_code($response) != 200 && wp_remote_retrieve_response_code($response) != 400)) {
						print __('There was a problem connecting to eWAY. Please try again.', 'membership');
					} else {
						$response_obj = json_decode($response['body']);

						if ($response_obj->response_code == "OK") {
							$product_id = $response_obj->assigned_product_id;
						}
					}
				}
			} else {
				$product_id = $product->assigned_product_id;
			}
		}

		return $product_id;
	}

	function convert_duration($length, $unit) {
		if (($length%7) == 0 && $unit == 'd') {
			return intval($length/7) . " Week";
		}
		if ($unit == 'w') {
			return "{$length} Week";
		}
		if ($unit == 'm') {
			return "{$length} Month";
		}
		if ($unit == 'y') {
			return "{$length} Year";
		}
	}

	function single_sub_button($pricing, $subscription, $user_id, $repeat = false) {

		global $M_options, $M_membership_url;

		if(empty($M_options['paymentcurrency'])) {
			$M_options['paymentcurrency'] = 'USD';
		}

		// Fetch product_id
		//$product_id = $this->get_product_id($subscription, $pricing);

		$form = '';

		if (get_option( $this->gateway . "_eway_status" ) == 'live') {
			$form .= '<form action="https://api.ewaypayments.com/CreateAccessCode.json" method="post">';
		} else {
			$form .= '<form action="https://api.sandbox.ewaypayments.com/CreateAccessCode.json" method="post">';
		}
		
		if (get_option( $this->gateway . "_eway_status" ) != 'live') {
			// $form .= '<input type="hidden" name="demo" value="Y">';
		}

		$form .= '<input type="hidden" name="ewayCustomerID" value="' . esc_attr(get_option( $this->gateway . "_eway_sid" )) . '">';
		$form .= '<input type="hidden" name="mode" value="eWAY" />';
		$form .= '<input type="hidden" name="li_1_type" value="product" />';
		$form .= '<input type="hidden" name="li_1_name" value="'.$subscription->sub_name().'" />';
		$form .= '<input type="hidden" name="li_1_price" value="'.number_format($pricing[0]['amount'], 2).'" />';
		$form .= '<input type="hidden" name="li_1_tangible" value="N" />';
		$form .= '<input type="hidden" name="li_1_product_id" value="'.$subscription->id.'" />';
		$form .= '<input type="hidden" name="li_1_description" value="'.$subscription->sub_description().'" />';
		if($repeat) {
			$form .= '<input type="hidden" name="li_1_recurrence" value="'.$this->convert_duration($pricing[0]['period'], $pricing[0]['unit']).'" />';
			$form .= '<input type="hidden" name="li_1_duration" value="Forever" />';
		}
		$form .= '<input type="hidden" name="merchant_order_id" value="'.$subscription->id.':'.$user_id.'" />';
		$form .= '<input type="hidden" name="skip_landing" value="'.esc_attr(get_option($this->gateway.'_eway_skip_landing')).'" />';
		$form .= '<input type="hidden" name="lang" value="'.esc_attr(get_option( $this->gateway . "_eway_lang" )).'" />';
		$form .= '<input type="hidden" name="user_id" value="'.$user_id.'">';
		
		$user_data = get_userdata($user_id);
		if($user_data)
			$form .= '<input type="hidden" name="email" value="'.$user_data->data->user_email.'" />';
			
		$form .= '<input type="hidden" name="currency" value="'.$M_options['paymentcurrency'].'">';
		$form .= '<input type="hidden" name="return_url" value="'.trailingslashit(get_option('home')) . 'paymentreturn/' . esc_attr($this->gateway).'" />';
		$form .= '<input type="hidden" name="return_method" value="1" />';
		//$form .= '<input type="hidden" name="return_url" value="'.M_get_registrationcompleted_permalink().'" />';

		$button = get_option( $this->gateway . "_eway_button", $M_membership_url . 'membershipincludes/images/eway-logo.png' );
		// $button = get_option( $this->gateway . "_subscribe_button" );

		$form .= '<input type="image" name="submit" border="0" src="' . $button . '" alt="Pay via eWAY">';
		$form .= '</form>';

		return $form;

	}

	function complex_sub_button($pricing, $subscription, $user_id) {

		global $M_options, $M_membership_url;

		if(empty($M_options['paymentcurrency'])) {
			$M_options['paymentcurrency'] = 'AUD';
		}

		// Fetch product_id
		$product_id = $this->get_product_id($subscription, $pricing);

// No step between - direct to payment screen

	 // Eway payment in PHP
        $pathvalue = "http://122.201.80.175/~orthopt/register/?";
		$ewayurl.="?CustomerID=" . esc_attr(get_option( $this->gateway . "_eway_sid" ));
		$ewayurl.="&UserName=" . esc_attr(get_option( $this->gateway . "_eway_username" ));
		$ewayurl.="&Amount=" . number_format($pricing[0]['amount'], 2);
		$ewayurl.="&Currency=" . $M_options['paymentcurrency'];
		$ewayurl.="&Language=" . esc_attr(get_option( $this->gateway . "_eway_lang" ));
		//$ewayurl.="&CustomerFirstName=John";
	    //$ewayurl.="&CustomerLastName=Doe";		
		//$ewayurl.="&CustomerAddress=123 ABC Street";
		//$ewayurl.="&CustomerCity=Sydney";
		//$ewayurl.="&CustomerState=NSW";
		//$ewayurl.="&CustomerPostCode=2000";
		//$ewayurl.="&CustomerCountry=Australia";		
		$ewayurl.="&CustomerEmail=" . $user_data->data->user_email;
		//$ewayurl.="&CustomerPhone=1800 10 65 65";		
		$ewayurl.="&InvoiceDescription=" . $subscription->sub_name();
		$ewayurl.="&CancelURL=".$pathvalue."ewaysharedpage.php";
		
		//$ewayurl.="&ReturnUrl=" . M_get_registrationcompleted_permalink();
		//$ewayurl.="&ReturnUrl=" . apply_filters( 'membership_notify_url_' . $this->gateway, trailingslashit(get_option('home')) . 'paymentreturn/' . esc_attr($this->gateway));
		$ewayurl.="&ReturnUrl=" . apply_filters( 'membership_notify_url_' . $this->gateway, trailingslashit(get_option('home')) . 'paymentreturn/eway');
		//$ewayurl.="&ReturnUrl=" . apply_filters( 'membership_notify_url_' . $this->gateway, trailingslashit(get_option('home')) . 'resources/australian-orthoptic-journal/');
		//$ewayurl.="&ReturnUrl=" . apply_filters( 'membership_notify_url_' . $this->gateway, trailingslashit(get_option('home')) . 'welcome/');
		$ewayurl.="&MerchantReference=" . $subscription->id;
		$ewayurl.="&MerchantInvoice=";
		$ewayurl.="&MerchantOption1=" . $user_id; 
		$ewayurl.="&MerchantOption2=" . $subscription->sub_description();
		$ewayurl.="&MerchantOption3=";
		$ewayurl.="&ModifiableCustomerDetails=";
		$ewayurl.="&PageTitle=eWAY Hosted Payment Page";
	    $ewayurl.="&PageDescription=Membership Registration";
//		$ewayurl.="&PageFooter=".$_POST['PageFooter'];	
		$ewayurl.="&CompanyName=Orthoptics Australia";
//		$ewayurl.="&CompanyLogo=".$_POST['CompanyLogo'];
//		$ewayurl.="&PageBanner=".$_POST['(PageBanner'];
			
	    $spacereplace = str_replace(" ", "%20", $ewayurl);	
	    $posturl="https://au.ewaygateway.com/Request/$spacereplace";
		
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $posturl);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_HEADER, 1);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
		
		if (CURL_PROXY_REQUIRED == 'True') 
		{
			$proxy_tunnel_flag = (defined('CURL_PROXY_TUNNEL_FLAG') && strtoupper(CURL_PROXY_TUNNEL_FLAG) == 'FALSE') ? false : true;
			curl_setopt ($ch, CURLOPT_HTTPPROXYTUNNEL, $proxy_tunnel_flag);
			curl_setopt ($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
			curl_setopt ($ch, CURLOPT_PROXY, CURL_PROXY_SERVER_DETAILS);
		}
		
		$response = curl_exec($ch);
		
		function fetch_data($string, $start_tag, $end_tag)
		{
			$position = stripos($string, $start_tag);  
			$str = substr($string, $position);  		
			$str_second = substr($str, strlen($start_tag));  		
			$second_positon = stripos($str_second, $end_tag);  		
			$str_third = substr($str_second, 0, $second_positon);  		
			$fetch_data = trim($str_third);		
			return $fetch_data; 
		}
		
		
		$responsemode = fetch_data($response, '<result>', '</result>');
	    $responseurl = fetch_data($response, '<uri>', '</uri>');
		   
		if($responsemode=="True")
		{ 			  	  	
		  header("location: ".$responseurl);
		  exit;
		}
		else
		{
		  header("location: ewaysharedpage.php?action=error");
		  exit;
		}



	}

	function build_subscribe_button($subscription, $pricing, $user_id, $sublevel) {

		if(!empty($pricing)) {

			// check to make sure there is a price in the subscription
			// we don't want to display free ones for a payment system
			$free = true;
			foreach($pricing as $key => $price) {
				if(!empty($price['amount']) && $price['amount'] > 0 ) {
					$free = false;
				}
			}

			if(!$free) {
				if(count($pricing) == 1) {
					// A basic price or a single subscription
					if(in_array($pricing[0]['type'], array('indefinite','finite'))) {
						// one-off payment
						return $this->single_sub_button($pricing, $subscription, $user_id, false);
					} else {
						// simple subscription
						return $this->single_sub_button($pricing, $subscription, $user_id, true);
					}
				} else {
					// something much more complex
					return $this->complex_sub_button($pricing, $subscription, $user_id);
					
				}
			}

		}

	}

	function display_subscribe_button($subscription, $pricing, $user_id, $sublevel = 1) {
		
		if(isset($pricing[$sublevel - 1]) && $pricing[$sublevel - 1]['amount'] < 1)
			echo $this->single_free_button($pricing, $subscription, $user_id, $sublevel);
		else
			echo $this->build_subscribe_button($subscription, $pricing, $user_id, $sublevel);

	}
	
	function display_cancel_button($subscription, $pricing, $user_id) {

		echo '<form class="unsubbutton" action="' . M_get_subscription_permalink() . '" method="post">';
		wp_nonce_field('cancel-sub_' . $subscription->sub_id());
		echo "<input type='hidden' name='action' value='unsubscribe' />";
		echo "<input type='hidden' name='gateway' value='" . $this->gateway . "' />";
		echo "<input type='hidden' name='subscription' value='" . $subscription->sub_id() . "' />";
		echo "<input type='hidden' name='user' value='" . $user_id . "' />";
		echo "<input type='submit' name='submit' value=' " . __('Unsubscribe', 'membership') . " ' class='button white' />";
		echo "</form>";
	}

	// Return stuff
	function handle_eway_return() {

		// BMD mod
		$CustomerID = 	esc_attr(get_option( $this->gateway . "_eway_sid" ));
		$UserName   = 	esc_attr(get_option( $this->gateway . "_eway_username" ));
		
		$querystring = "CustomerID=" . $CustomerID . "&UserName=" . $UserName . "&AccessPaymentCode=".$_REQUEST['AccessPaymentCode'];
		$posturl="https://au.ewaygateway.com/Result/?".$querystring;

		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $posturl);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_HEADER, 1);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
		if (CURL_PROXY_REQUIRED == 'True')
		{
			$proxy_tunnel_flag = (defined('CURL_PROXY_TUNNEL_FLAG') && strtoupper(CURL_PROXY_TUNNEL_FLAG) == 'FALSE') ? false : true;
			curl_setopt ($ch, CURLOPT_HTTPPROXYTUNNEL, $proxy_tunnel_flag);
			curl_setopt ($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
			curl_setopt ($ch, CURLOPT_PROXY, CURL_PROXY_SERVER_DETAILS);
		}

		function fetch_data($string, $start_tag, $end_tag)
	    {
			$position = stripos($string, $start_tag);
			$str = substr($string, $position);
			$str_second = substr($str, strlen($start_tag));
			$second_positon = stripos($str_second, $end_tag);
			$str_third = substr($str_second, 0, $second_positon);
			$fetch_data = trim($str_third);
			return $fetch_data;
		}

		$response = curl_exec($ch);
		$authecode = fetch_data($response, '<authCode>', '</authCode>');
		$responsecode = fetch_data($response, '<responsecode>', '</responsecode>');
		$retrunamount = fetch_data($response, '<returnamount>', '</returnamount>');
		$trxnnumber = fetch_data($response, '<trxnnumber>', '</trxnnumber>');
		$trxnstatus = fetch_data($response, '<trxnstatus>', '</trxnstatus>');
		$trxnresponsemessage = fetch_data($response, '<trxnresponsemessage>', '</trxnresponsemessage>');

		
		// user_id
		$merchantoption1 = fetch_data($response, '<merchantoption1>', '</merchantoption1>');
		// subscription sub_description
		$merchantoption2 = fetch_data($response, '<merchantoption2>', '</merchantoption2>');
		$merchantoption3 = fetch_data($response, '<merchantoption3>', '</merchantoption3>');
		// subscription id
		$merchantreference = fetch_data($response, '<merchantreference>', '</merchantreference>');
		$merchantinvoice = fetch_data($response, '<merchantinvoice>', '</merchantinvoice>');

		// end BMD mod
				
		// Return handling code
		global $M_options, $M_membership_url;
		
		$return = array();
		
		// No SSl required for return
		//if($_SERVER['HTTPS'] != 'on') {
		//	wp_die(__('You must use HTTPS in order to do this','membership'));
		//	exit;
		//}
		
		// no coupon
		// $coupon_code = (isset($_REQUEST['remove_coupon']) ? '' : $_REQUEST['coupon_code']);

		if(empty($M_options['paymentcurrency'])) {
			$M_options['paymentcurrency'] = 'AUD';
		}

		$subscription = new M_Subscription($merchantreference);
		$pricing = $subscription->get_pricingarray();
		
		// if(!empty($coupon_code))
			// $pricing = $subscription->apply_coupon_pricing($coupon_code,$pricing);
			$pricing = $retrunamount;

		$user_id = ( is_user_logged_in() ? get_current_user_id() : $merchantoption1 );
		$user = get_userdata($user_id);
		$sub_id = $merchantreference;

		// A basic price or a single subscription
		if($pricing) {
			$timestamp = time();

			// 00 - Transaction Approved - Successful
			if ($responsecode == "00") {

				$status = __('Processed','membership');
				$note = '';

				$member = new M_Membership($user_id);
				if($member) {
					if($member->has_subscription() && $member->on_sub($sub_id)) {
						remove_action( 'membership_expire_subscription', 'membership_record_user_expire', 10, 2 );
						remove_action( 'membership_add_subscription', 'membership_record_user_subscribe', 10, 4 );
						$member->expire_subscription($sub_id);
						$member->create_subscription($sub_id, $this->gateway);
					} else {
						$member->create_subscription($sub_id, $this->gateway);
					}
				}

				// TODO: create switch for handling different authorize aim respone codes

				$this->record_transaction($user_id, $sub_id, $amount, $M_options['paymentcurrency'], time(), ( $payment->results[6] == 0 ? 'TESTMODE' : $payment->results[6]) , $status, $note);

				do_action('membership_payment_subscr_signup', $user_id, $sub_id);
				$return['status'] = 'success';
				$return['redirect'] = (!strpos(home_url(),'https:') ? str_replace('https:','http:',M_get_registrationcompleted_permalink()) : M_get_registrationcompleted_permalink());
			} else {
				$return['status'] = 'error';
				$return['errors'][] =  __('Your payment was declined.  Please check all your details or use a different card.','membership');
			}
		} else {
			$return['status'] = 'error';
			$return['errors'][] =  __('There was an issue determining the price.','membership');
		}
		
		header("location: ".$return);
		exit;
	}

}

M_register_gateway('eway', 'eway');