woocommerce-ajax.php

<?php
/**
 * WooCommerce Ajax Handlers
 * 
 * Handles AJAX requests via wp_ajax hook (both admin and front-end events)
 *
 * @author 		WooThemes
 * @category 	AJAX
 * @package 	WooCommerce
 */

/** Frontend AJAX events **************************************************/	

/**
 * Process ajax login
 */
add_action('wp_ajax_nopriv_woocommerce_sidebar_login_process', 'woocommerce_sidebar_login_ajax_process');

function woocommerce_sidebar_login_ajax_process() {

	check_ajax_referer( 'woocommerce-sidebar-login-action', 'security' );
	
	// Get post data
	$creds = array();
	$creds['user_login'] 	= esc_attr($_POST['user_login']);
	$creds['user_password'] = esc_attr($_POST['user_password']);
	$creds['remember'] 		= 'forever';
	$redirect_to 			= esc_attr($_POST['redirect_to']);
	
	// Check for Secure Cookie
	$secure_cookie = '';
	
	// If the user wants ssl but the session is not ssl, force a secure cookie.
	if ( !empty($_POST['log']) && !force_ssl_admin() ) {
		$user_name = sanitize_user($_POST['log']);
		if ( $user = get_user_by('login', $user_name) ) {
			if ( get_user_option('use_ssl', $user->ID) ) {
				$secure_cookie = true;
				force_ssl_admin(true);
			}
		}
	}
	
	if ( !$secure_cookie && is_ssl() && force_ssl_login() && !force_ssl_admin() && ( 0 !== strpos($redirect_to, 'https') ) && ( 0 === strpos($redirect_to, 'http') ) )
	$secure_cookie = false;

	// Login
	$user = wp_signon($creds, $secure_cookie);
	
	// Redirect filter
	if ( $secure_cookie && false !== strpos($redirect_to, 'wp-admin') ) $redirect_to = preg_replace('|^http://|', 'https://', $redirect_to);

	// Result
	$result = array();
	
	if ( !is_wp_error($user) ) :
		$result['success'] = 1;
		$result['redirect'] = $redirect_to;
	else :
		$result['success'] = 0;
		foreach ($user->errors as $error) {
			$result['error'] = $error[0];
			break;
		}
	endif;
	
	echo json_encode($result);

	die();
}

/**
 * AJAX update shipping method on cart page
 */
add_action('wp_ajax_woocommerce_update_shipping_method', 'woocommerce_ajax_update_shipping_method');
add_action('wp_ajax_nopriv_woocommerce_update_shipping_method', 'woocommerce_ajax_update_shipping_method');

function woocommerce_ajax_update_shipping_method() {
	global $woocommerce;
	
	check_ajax_referer( 'update-shipping-method', 'security' );
	
	if (!defined('WOOCOMMERCE_CART')) define('WOOCOMMERCE_CART', true);
	
	if (isset($_POST['shipping_method'])) $_SESSION['_chosen_shipping_method'] = $_POST['shipping_method'];
	
	$woocommerce->cart->calculate_totals();
	
	woocommerce_cart_totals();
	
	die();
}

/**
 * AJAX update order review on checkout
 */
add_action('wp_ajax_woocommerce_update_order_review', 'woocommerce_ajax_update_order_review');
add_action('wp_ajax_nopriv_woocommerce_update_order_review', 'woocommerce_ajax_update_order_review');

function woocommerce_ajax_update_order_review() {
	global $woocommerce;
	
	check_ajax_referer( 'update-order-review', 'security' );
	
	if (!defined('WOOCOMMERCE_CHECKOUT')) define('WOOCOMMERCE_CHECKOUT', true);
	
	if (sizeof($woocommerce->cart->get_cart())==0) :
		echo '<div class="woocommerce_error">'.__('Sorry, your session has expired.', 'woocommerce').' <a href="'.home_url().'">'.__('Return to homepage &rarr;', 'woocommerce').'</a></div>';
		die();
	endif;
	
	do_action('woocommerce_checkout_update_order_review', $_POST['post_data']);
	
	if (isset($_POST['shipping_method'])) $_SESSION['_chosen_shipping_method'] = $_POST['shipping_method'];
	if (isset($_POST['payment_method'])) $_SESSION['_chosen_payment_method'] = $_POST['payment_method'];
	if (isset($_POST['country'])) $woocommerce->customer->set_country( $_POST['country'] );
	if (isset($_POST['state'])) $woocommerce->customer->set_state( $_POST['state'] );
	if (isset($_POST['postcode'])) $woocommerce->customer->set_postcode( $_POST['postcode'] );
	if (isset($_POST['s_country'])) $woocommerce->customer->set_shipping_country( $_POST['s_country'] );
	if (isset($_POST['s_state'])) $woocommerce->customer->set_shipping_state( $_POST['s_state'] );
	if (isset($_POST['s_postcode'])) $woocommerce->customer->set_shipping_postcode( $_POST['s_postcode'] );
	
	$woocommerce->cart->calculate_totals();
	
	do_action('woocommerce_checkout_order_review'); // Display review order table

	die();
}

/**
 * AJAX add to cart
 */
add_action('wp_ajax_woocommerce_add_to_cart', 'woocommerce_ajax_add_to_cart');
add_action('wp_ajax_nopriv_woocommerce_add_to_cart', 'woocommerce_ajax_add_to_cart');

function woocommerce_ajax_add_to_cart() {
	
	global $woocommerce;
	
	check_ajax_referer( 'add-to-cart', 'security' );
	
	$product_id = (int) apply_filters('woocommerce_add_to_cart_product_id', $_POST['product_id']);
	
	$passed_validation = apply_filters('woocommerce_add_to_cart_validation', true, $product_id, 1);
	
	if ($passed_validation && $woocommerce->cart->add_to_cart($product_id, 1)) :
		// Return html fragments
		$data = apply_filters('add_to_cart_fragments', array());
	else :
		// If there was an error adding to the cart, redirect to the product page to show any errors
		$data = array(
			'error' => true,
			'product_url' => get_permalink( $product_id )
		);
		$woocommerce->set_messages();
	endif;
	
	echo json_encode( $data );
	
	die();
}

/**
 * Process ajax checkout form
 */
add_action('wp_ajax_woocommerce-checkout', 'woocommerce_process_checkout');
add_action('wp_ajax_nopriv_woocommerce-checkout', 'woocommerce_process_checkout');

function woocommerce_process_checkout() {
	global $woocommerce;
	
	if (!defined('WOOCOMMERCE_CHECKOUT')) define('WOOCOMMERCE_CHECKOUT', true);
	
	$woocommerce_checkout = $woocommerce->checkout();
	$woocommerce_checkout->process_checkout();
	
	die(0);
}


/** Admin AJAX events *****************************************************/	

/**
 * Feature a product from admin
 */
function woocommerce_feature_product() {

	if( !is_admin() ) die;
	
	if( !current_user_can('edit_posts') ) wp_die( __('You do not have sufficient permissions to access this page.', 'woocommerce') );
	
	if( !check_admin_referer('woocommerce-feature-product')) wp_die( __('You have taken too long. Please go back and retry.', 'woocommerce') );
	
	$post_id = isset($_GET['product_id']) && (int)$_GET['product_id'] ? (int)$_GET['product_id'] : '';
	
	if(!$post_id) die;
	
	$post = get_post($post_id);
	if(!$post) die;
	
	if($post->post_type !== 'product') die;
	
	$product = new WC_Product($post->ID);

	if ($product->is_featured()) update_post_meta($post->ID, '_featured', 'no');
	else update_post_meta($post->ID, '_featured', 'yes');
	
	$sendback = remove_query_arg( array('trashed', 'untrashed', 'deleted', 'ids'), wp_get_referer() );
	wp_safe_redirect( $sendback );

}
add_action('wp_ajax_woocommerce-feature-product', 'woocommerce_feature_product');

/**
 * Mark an order as complete
 */
function woocommerce_mark_order_complete() {

	if( !is_admin() ) die;
	if( !current_user_can('edit_posts') ) wp_die( __('You do not have sufficient permissions to access this page.', 'woocommerce') );
	if( !check_admin_referer('woocommerce-mark-order-complete')) wp_die( __('You have taken too long. Please go back and retry.', 'woocommerce') );
	$order_id = isset($_GET['order_id']) && (int) $_GET['order_id'] ? (int) $_GET['order_id'] : '';
	if(!$order_id) die;
	
	$order = new WC_Order( $order_id );
	$order->update_status( 'completed' );
	
	wp_safe_redirect( wp_get_referer() );

}
add_action('wp_ajax_woocommerce-mark-order-complete', 'woocommerce_mark_order_complete');

/**
 * Mark an order as processing
 */
function woocommerce_mark_order_processing() {

	if( !is_admin() ) die;
	if( !current_user_can('edit_posts') ) wp_die( __('You do not have sufficient permissions to access this page.', 'woocommerce') );
	if( !check_admin_referer('woocommerce-mark-order-processing')) wp_die( __('You have taken too long. Please go back and retry.', 'woocommerce') );
	$order_id = isset($_GET['order_id']) && (int) $_GET['order_id'] ? (int) $_GET['order_id'] : '';
	if(!$order_id) die;
	
	$order = new WC_Order( $order_id );
	$order->update_status( 'processing' );
	
	wp_safe_redirect( wp_get_referer() );

}
add_action('wp_ajax_woocommerce-mark-order-processing', 'woocommerce_mark_order_processing');

/**
 * Delete variation via ajax function
 */
add_action('wp_ajax_woocommerce_remove_variation', 'woocommerce_remove_variation');

function woocommerce_remove_variation() {
	
	check_ajax_referer( 'delete-variation', 'security' );
	$variation_id = intval( $_POST['variation_id'] );
	$variation = get_post($variation_id);
	if ($variation && $variation->post_type=="product_variation") wp_delete_post( $variation_id );
	die();
	
}

/**
 * Delete variations via ajax function
 */
add_action('wp_ajax_woocommerce_remove_variations', 'woocommerce_remove_variations');

function woocommerce_remove_variations() {
	
	check_ajax_referer( 'delete-variations', 'security' );
	$variation_ids = (array) $_POST['variation_ids'];
	foreach ($variation_ids as $variation_id) :
		$variation = get_post($variation_id);
		if ($variation && $variation->post_type=="product_variation") wp_delete_post( $variation_id );
	endforeach;
	die();
	
}

/**
 * Add variation via ajax function
 */
add_action('wp_ajax_woocommerce_add_variation', 'woocommerce_add_variation');

function woocommerce_add_variation() {
	
	check_ajax_referer( 'add-variation', 'security' );
	
	$post_id = intval( $_POST['post_id'] );

	$variation = array(
		'post_title' => 'Product #' . $post_id . ' Variation',
		'post_content' => '',
		'post_status' => 'publish',
		'post_author' => get_current_user_id(),
		'post_parent' => $post_id,
		'post_type' => 'product_variation'
	);
	$variation_id = wp_insert_post( $variation );
	
	echo $variation_id;
	
	die();
	
}

/**
 * Link all variations via ajax function
 */
add_action('wp_ajax_woocommerce_link_all_variations', 'woocommerce_link_all_variations');

function woocommerce_link_all_variations() {
	
	check_ajax_referer( 'link-variations', 'security' );
	
	@set_time_limit(0); 
	
	$post_id = intval( $_POST['post_id'] );
	
	if (!$post_id) die();
	
	$variations = array();
	
	$_product = new WC_Product( $post_id );
		
	// Put variation attributes into an array
	foreach ($_product->get_attributes() as $attribute) :
								
		if ( !$attribute['is_variation'] ) continue;
		
		$attribute_field_name = 'attribute_' . sanitize_title($attribute['name']);
		
		if ($attribute['is_taxonomy']) :
			$post_terms = wp_get_post_terms( $post_id, $attribute['name'] );
			$options = array();
			foreach ($post_terms as $term) :
				$options[] = $term->slug;
			endforeach;
		else :
			$options = explode('|', $attribute['value']);
		endif;
		
		$options = array_map('trim', $options);
		
		$variations[$attribute_field_name] = $options;
		
	endforeach;
	
	// Quit out if none were found
	if (sizeof($variations)==0) die();
	
	// Get existing variations so we don't create duplicated
    $available_variations = array();
    
    foreach($_product->get_children() as $child_id) {
    	$child = $_product->get_child( $child_id );
        if($child instanceof WC_Product_Variation) {
            $available_variations[] = $child->get_variation_attributes();
        }
    }
	
	// Created posts will all have the following data
	$variation_post_data = array(
		'post_title' => 'Product #' . $post_id . ' Variation',
		'post_content' => '',
		'post_status' => 'publish',
		'post_author' => get_current_user_id(),
		'post_parent' => $post_id,
		'post_type' => 'product_variation'
	);
		
	// Now find all combinations and create posts
	if (!function_exists('array_cartesian')) {
		function array_cartesian($input) {
		    $result = array();
		 
		    while (list($key, $values) = each($input)) {
		        // If a sub-array is empty, it doesn't affect the cartesian product
		        if (empty($values)) {
		            continue;
		        }
		 
		        // Special case: seeding the product array with the values from the first sub-array
		        if (empty($result)) {
		            foreach($values as $value) {
		                $result[] = array($key => $value);
		            }
		        }
		        else {
		            // Second and subsequent input sub-arrays work like this:
		            //   1. In each existing array inside $product, add an item with
		            //      key == $key and value == first item in input sub-array
		            //   2. Then, for each remaining item in current input sub-array,
		            //      add a copy of each existing array inside $product with
		            //      key == $key and value == first item in current input sub-array
		 
		            // Store all items to be added to $product here; adding them on the spot
		            // inside the foreach will result in an infinite loop
		            $append = array();
		            foreach($result as &$product) {
		                // Do step 1 above. array_shift is not the most efficient, but it
		                // allows us to iterate over the rest of the items with a simple
		                // foreach, making the code short and familiar.
		                $product[$key] = array_shift($values);
		 
		                // $product is by reference (that's why the key we added above
		                // will appear in the end result), so make a copy of it here
		                $copy = $product;
		 
		                // Do step 2 above.
		                foreach($values as $item) {
		                    $copy[$key] = $item;
		                    $append[] = $copy;
		                }
		 
		                // Undo the side effecst of array_shift
		                array_unshift($values, $product[$key]);
		            }
		 
		            // Out of the foreach, we can add to $results now
		            $result = array_merge($result, $append);
		        }
		    }
		    
		    return $result;
		}
	}
	
	$variation_ids = array();
	$added = 0;
	$possible_variations = array_cartesian( $variations );
	
	foreach ($possible_variations as $variation) :
		
		// Check if variation already exists
		if (in_array($variation, $available_variations)) continue;
		
		$variation_id = wp_insert_post( $variation_post_data );
		
		$variation_ids[] = $variation_id;
		
		foreach ($variation as $key => $value) :
			
			update_post_meta( $variation_id, $key, $value );
			
		endforeach;
		
		$added++;
		
		// Max 100
		if ($added>49) break;
		
	endforeach;
	
	echo $added;
		
	die();
	
}

/**
 * Delete download permissions via ajax function
 */
add_action('wp_ajax_woocommerce_revoke_access_to_download', 'woocommerce_revoke_access_to_download');

function woocommerce_revoke_access_to_download() {
	
	check_ajax_referer( 'revoke-access', 'security' );
	
	global $wpdb;
	
	$product_id = intval( $_POST['product_id'] );
	$order_id 	= intval( $_POST['order_id'] );
	
	$wpdb->query("
		DELETE FROM {$wpdb->prefix}woocommerce_downloadable_product_permissions
		WHERE order_id = $order_id
		AND product_id = $product_id
	");

	die();	
}

/**
 * Grant download permissions via ajax function
 */
add_action('wp_ajax_woocommerce_grant_access_to_download', 'woocommerce_grant_access_to_download');

function woocommerce_grant_access_to_download() {
	
	check_ajax_referer( 'grant-access', 'security' );
	
	global $wpdb;
	
	$product_id = intval( $_POST['product_id'] );
	$order_id 	= intval( $_POST['order_id'] );
	
	$order = new WC_Order( $order_id );
	
	$user_email = $order->billing_email;
				
	if ($order->user_id>0) :
		$user_info = get_userdata($order->user_id);
		if ($user_info->user_email) :
			$user_email = $user_info->user_email;
		endif;
	else :
		$order->user_id = 0;
	endif;
	
	$limit = trim(get_post_meta($product_id, '_download_limit', true));
	$expiry = trim(get_post_meta($product_id, '_download_expiry', true));
	
	$limit = (empty($limit)) ? '' : (int) $limit;
	$expiry = (empty($expiry)) ? '' : (int) $expiry;
	
	if ($expiry) $expiry = date("Y-m-d", strtotime('NOW + ' . $expiry . ' DAY'));
				
	$wpdb->hide_errors();

	$success = $wpdb->insert( $wpdb->prefix . 'woocommerce_downloadable_product_permissions', array( 
		'product_id' => $product_id, 
		'user_id' => $order->user_id,
		'user_email' => $user_email,
		'order_id' => $order->id,
		'order_key' => $order->order_key,
		'downloads_remaining' => $limit,
		'access_granted'		=> current_time('mysql'),
		'access_expires'		=> $expiry,
		'download_count'		=> 0
	), array( 
		'%s', 
		'%s', 
		'%s', 
		'%s', 
		'%s',
		'%s',
		'%s',
		'%s',
		'%d'
	) );
	
	if ($success) {
		echo json_encode(array(
			'success'		=> 1,
			'download_id'  	=> $product_id,
			'title'			=> get_the_title($product_id),
			'expires'		=> $expiry,
			'remaining'		=> $limit
		));
	}
	
	die();	
}

/**
 * Get customer details via ajax
 */
add_action('wp_ajax_woocommerce_get_customer_details', 'woocommerce_get_customer_details');

function woocommerce_get_customer_details() {
	
	global $woocommerce;

	check_ajax_referer( 'get-customer-details', 'security' );

	$user_id = (int) trim(stripslashes($_POST['user_id']));
	$type_to_load = esc_attr(trim(stripslashes($_POST['type_to_load'])));
	
	$customer_data = array(
		$type_to_load . '_first_name' => get_user_meta( $user_id, $type_to_load . '_first_name', true ),
		$type_to_load . '_last_name' => get_user_meta( $user_id, $type_to_load . '_last_name', true ),
		$type_to_load . '_company' => get_user_meta( $user_id, $type_to_load . '_company', true ),
		$type_to_load . '_address_1' => get_user_meta( $user_id, $type_to_load . '_address_1', true ),
		$type_to_load . '_address_2' => get_user_meta( $user_id, $type_to_load . '_address_2', true ),
		$type_to_load . '_city' => get_user_meta( $user_id, $type_to_load . '_city', true ),
		$type_to_load . '_postcode' => get_user_meta( $user_id, $type_to_load . '_postcode', true ),
		$type_to_load . '_country' => get_user_meta( $user_id, $type_to_load . '_country', true ),
		$type_to_load . '_state' => get_user_meta( $user_id, $type_to_load . '_state', true ),
		$type_to_load . '_email' => get_user_meta( $user_id, $type_to_load . '_email', true ),
		$type_to_load . '_phone' => get_user_meta( $user_id, $type_to_load . '_phone', true ),
	);
	
	echo json_encode($customer_data);
	
	// Quit out
	die();
	
}

/**
 * Add order item via ajax
 */
add_action('wp_ajax_woocommerce_add_order_item', 'woocommerce_add_order_item');

function woocommerce_add_order_item() {
	global $woocommerce, $wpdb;

	check_ajax_referer( 'add-order-item', 'security' );
	
	$index = trim(stripslashes($_POST['index']));
	$item_to_add = trim(stripslashes($_POST['item_to_add']));
	
	$post = '';
	
	// Find the item
	if (is_numeric($item_to_add)) :
		$post = get_post( $item_to_add );
	endif;
	
	if (!$post || ($post->post_type!=='product' && $post->post_type!=='product_variation')) :
		$post_id = $wpdb->get_var($wpdb->prepare("
			SELECT post_id
			FROM $wpdb->posts
			LEFT JOIN $wpdb->postmeta ON ($wpdb->posts.ID = $wpdb->postmeta.post_id)
			WHERE $wpdb->postmeta.meta_key = '_sku'
			AND $wpdb->posts.post_status = 'publish'
			AND $wpdb->posts.post_type = 'shop_product'
			AND $wpdb->postmeta.meta_value = %s
			LIMIT 1
		"), $item_to_add );
		$post = get_post( $post_id );
	endif;
	
	if (!$post || ($post->post_type!=='product' && $post->post_type!=='product_variation')) :
		die();
	endif;
	
	if ($post->post_type=="product") :
		$_product = new WC_Product( $post->ID );
	else :
		$_product = new WC_Product_Variation( $post->ID );
	endif;
	?>
	<tr class="item" rel="<?php echo $index; ?>">
		<td class="product-id">
			<img class="tips" tip="<?php
				echo '<strong>'.__('Product ID:', 'woocommerce').'</strong> '. $_product->id;
				echo '<br/><strong>'.__('Variation ID:', 'woocommerce').'</strong> '; if (isset($_product->variation_id) && $_product->variation_id) echo $_product->variation_id; else echo '-';
				echo '<br/><strong>'.__('Product SKU:', 'woocommerce').'</strong> '; if ($_product->sku) echo $_product->sku; else echo '-';
			?>" src="<?php echo $woocommerce->plugin_url(); ?>/assets/images/tip.png" />
		</td>
		<td class="sku">
			<?php if ($_product->sku) echo $_product->sku; else echo '-'; ?>
			<input type="hidden" class="item_id" name="item_id[<?php echo $index; ?>]" value="<?php echo esc_attr( $_product->id ); ?>" />
			<input type="hidden" name="item_name[<?php echo $index; ?>]" value="<?php echo esc_attr( $_product->get_title() ); ?>" />
			<input type="hidden" name="item_variation[<?php echo $index; ?>]" value="<?php if (isset($_product->variation_id)) echo $_product->variation_id; ?>" />
		</td>
		<td class="name">
		
			<div class="row-actions">
				<span class="trash"><a class="remove_row" href="#"><?php _e('Delete item', 'woocommerce'); ?></a> | </span>
				<span class="view"><a href="<?php echo esc_url( admin_url('post.php?post='. $_product->id .'&action=edit') ); ?>"><?php _e('View product', 'woocommerce'); ?></a>
			</div>
			
			<?php echo $_product->get_title(); ?>
			<?php if (isset($_product->variation_data)) echo '<br/>' . woocommerce_get_formatted_variation( $_product->variation_data, true ); ?>
			<table class="meta" cellspacing="0">
				<tfoot>
					<tr>
						<td colspan="3"><button class="add_meta button"><?php _e('Add&nbsp;meta', 'woocommerce'); ?></button></td>
					</tr>
				</tfoot>
				<tbody class="meta_items"></tbody>
			</table>
		</td>
		
		<?php do_action('woocommerce_admin_order_item_values', $_product); ?>
		
		<td class="tax_class" width="1%">
			<select class="tax_class" name="item_tax_class[<?php echo $loop; ?>]">
				<?php 
				$tax_classes = array_filter(array_map('trim', explode("\n", get_option('woocommerce_tax_classes'))));
				$classes_options = array();
				$classes_options[''] = __('Standard', 'woocommerce');
				if ($tax_classes) foreach ($tax_classes as $class) :
					$classes_options[sanitize_title($class)] = $class;
				endforeach;
				foreach ($classes_options as $value => $name) echo '<option value="'. $value .'" '.selected( $value, $_product->get_tax_status(), false ).'>'. $name .'</option>';
				?>
			</select>
		</td>
		
		<td class="quantity" width="1%">
			<input type="text" name="item_quantity[<?php echo $index; ?>]" placeholder="0" value="1" size="2" class="quantity" />
		</td>
		
		<td class="line_subtotal" width="1%">
			<label><?php _e('Cost', 'woocommerce'); ?>: <input type="text" name="line_subtotal[<?php echo $index; ?>]" placeholder="0.00" value="<?php echo esc_attr( number_format($_product->get_price_excluding_tax(), 2, '.', '') ); ?>" class="line_subtotal" /></label>
			
			<label><?php _e('Tax', 'woocommerce'); ?>: <input type="text" name="line_subtotal_tax[<?php echo $index; ?>]" placeholder="0.00" class="line_subtotal_tax" /></label>
		</td>
		
		<td class="line_total" width="1%">
			<label><?php _e('Cost', 'woocommerce'); ?>: <input type="text" name="line_total[<?php echo $index; ?>]" placeholder="0.00" value="<?php echo esc_attr( number_format($_product->get_price_excluding_tax(), 2, '.', '') ); ?>" class="line_total" /></label>
			
			<label><?php _e('Tax', 'woocommerce'); ?>: <input type="text" name="line_tax[<?php echo $index; ?>]" placeholder="0.00" class="line_tax" /></label>
		</td>
		
	</tr>
	<?php
	
	// Quit out
	die();
}

/**
 * Calc line tax
 */
add_action('wp_ajax_woocommerce_calc_line_taxes', 'woocommerce_calc_line_taxes');

function woocommerce_calc_line_taxes() {
	global $woocommerce;

	check_ajax_referer( 'calc-totals', 'security' );
	
	$tax = new WC_Tax();
	
	$base_tax_amount = 0;
	$line_tax_amount = 0;
	
	$country 		= strtoupper(esc_attr($_POST['country']));
	$state 			= strtoupper(esc_attr($_POST['state']));
	$postcode 		= strtoupper(esc_attr($_POST['postcode']));
	
	$line_subtotal 	= esc_attr($_POST['line_subtotal']);
	$line_total 	= esc_attr($_POST['line_total']);
	
	$item_id		= esc_attr($_POST['item_id']);
	$tax_class 		= esc_attr($_POST['tax_class']);
	
	if (!$item_id) return;
	
	// Get product details
	$_product			= new WC_Product($item_id);
	$item_tax_status 	= $_product->get_tax_status();
	
	if ($item_tax_status=='taxable') :
		
		$tax_rates			= $tax->find_rates( $country, $state, $postcode, $tax_class );
		
		$line_subtotal_tax_amount	= rtrim(rtrim(number_format( array_sum($tax->calc_tax( $line_subtotal, $tax_rates, false )), 4, '.', ''), '0'), '.');
		$line_tax_amount			= rtrim(rtrim(number_format( array_sum($tax->calc_tax( $line_total, $tax_rates, false )), 4, '.', ''), '0'), '.');
		
	endif;
	
	if ($line_subtotal_tax_amount<0) $line_subtotal_tax_amount = 0;
	if ($line_tax_amount<0) $line_tax_amount = 0;
	
	echo json_encode(array(
		'line_subtotal_tax' => $line_subtotal_tax_amount,
		'line_tax' => $line_tax_amount
	));
	
	// Quit out
	die();
}

/**
 * Add order note via ajax
 */
add_action('wp_ajax_woocommerce_add_order_note', 'woocommerce_add_order_note');

function woocommerce_add_order_note() {
	
	global $woocommerce;

	check_ajax_referer( 'add-order-note', 'security' );
	
	$post_id 	= (int) $_POST['post_id'];
	$note		= strip_tags(woocommerce_clean($_POST['note']));
	$note_type	= $_POST['note_type'];
	
	$is_customer_note = ($note_type=='customer') ? 1 : 0;
	
	if ($post_id>0) :
		$order = new WC_Order( $post_id );
		$comment_id = $order->add_order_note( $note, $is_customer_note );
		
		echo '<li rel="'.$comment_id.'" class="note ';
		if ($is_customer_note) echo 'customer-note';
		echo '"><div class="note_content">';
		echo wpautop(wptexturize($note));
		echo '</div><p class="meta"><a href="#" class="delete_note">'.__('Delete note', 'woocommerce').'</a></p>';
		echo '</li>';
		
	endif;
	
	// Quit out
	die();
}

/**
 * Delete order note via ajax
 */
add_action('wp_ajax_woocommerce_delete_order_note', 'woocommerce_delete_order_note');

function woocommerce_delete_order_note() {
	
	global $woocommerce;

	check_ajax_referer( 'delete-order-note', 'security' );
	
	$note_id 	= (int) $_POST['note_id'];
	
	if ($note_id>0) :
		wp_delete_comment( $note_id );
	endif;
	
	// Quit out
	die();
}

/**
 * Search for products and return json
 */
add_action('wp_ajax_woocommerce_json_search_products', 'woocommerce_json_search_products');
add_action('wp_ajax_woocommerce_json_search_products_and_variations', 'woocommerce_json_search_products_and_variations');

function woocommerce_json_search_products( $x = '', $post_types = array('product') ) {

	check_ajax_referer( 'search-products', 'security' );
	
	$term = (string) urldecode(stripslashes(strip_tags($_GET['term'])));
	
	if (empty($term)) die();
	
	if (is_numeric($term)) {
		
		$args = array(
			'post_type'			=> $post_types,
			'post_status'	 	=> 'publish',
			'posts_per_page' 	=> -1,
			'post__in' 			=> array(0, $term),
			'fields'			=> 'ids'
		);
		
		$posts = get_posts( $args );
		
	} else {
	
		$args = array(
			'post_type'			=> $post_types,
			'post_status' 		=> 'publish',
			'posts_per_page' 	=> -1,
			's' 				=> $term,
			'fields'			=> 'ids'
		);
		
		$args2 = array(
			'post_type'			=> $post_types,
			'post_status' 		=> 'publish',
			'posts_per_page' 	=> -1,
			'meta_query' 		=> array(
				array(
				'key' 	=> '_sku',
				'value' => $term,
				'compare' => 'LIKE'
				)
			),
			'fields'			=> 'ids'
		);
		
		$posts = array_unique(array_merge( get_posts( $args ), get_posts( $args2 ) ));
	
	}
	
	$found_products = array();

	if ($posts) foreach ($posts as $post) {
		
		$SKU = get_post_meta($post, '_sku', true);
		
		if (isset($SKU) && $SKU) $SKU = ' (SKU: ' . $SKU . ')';
		
		$found_products[$post] = get_the_title($post) . $SKU;
		
	}
	
	echo json_encode( $found_products );
	
	die();
}

function woocommerce_json_search_products_and_variations() {

	woocommerce_json_search_products( '', array('product', 'product_variation') );
	
}

/**
 * Search for products for upsells/crosssells
 */
add_action('wp_ajax_woocommerce_upsell_crosssell_search_products', 'woocommerce_upsell_crosssell_search_products');

function woocommerce_upsell_crosssell_search_products() {
	
	check_ajax_referer( 'search-products', 'security' );
	
	$search = (string) urldecode(stripslashes(strip_tags($_POST['search'])));
	$name = (string) urldecode(stripslashes(strip_tags($_POST['name'])));
	
	if (empty($search)) die();
	
	if (is_numeric($search)) :
		
		$args = array(
			'post_type'	=> 'product',
			'post_status' => 'publish',
			'posts_per_page' => 15,
			'post__in' => array(0, $search)
		);
		
	else :
	
		$args = array(
			'post_type'	=> 'product',
			'post_status' => 'publish',
			'posts_per_page' => 15,
			's' => $search
		);
	
	endif;
	
	$posts = get_posts( $args );
	
	if ($posts) : foreach ($posts as $post) : 
		
		$SKU = get_post_meta($post->ID, '_sku', true);
		
		?>
		<li rel="<?php echo $post->ID; ?>"><button type="button" name="Add" class="button add_crosssell" title="Add"><?php _e('Cross-sell', 'woocommerce'); ?> &rarr;</button><button type="button" name="Add" class="button add_upsell" title="Add"><?php _e('Up-sell', 'woocommerce'); ?> &rarr;</button><strong><?php echo $post->post_title; ?></strong> &ndash; #<?php echo $post->ID; ?> <?php if (isset($SKU) && $SKU) echo 'SKU: '.$SKU; ?><input type="hidden" class="product_id" value="0" /></li>
		<?php
						
	endforeach; else : 
	
		?><li><?php _e('No products found', 'woocommerce'); ?></li><?php 
		
	endif; 
	
	die();
	
}

/**
 * Ajax request handling for categories ordering
 */
function woocommerce_term_ordering() {
	global $wpdb;
	
	$id = (int) $_POST['id'];
	$next_id  = isset($_POST['nextid']) && (int) $_POST['nextid'] ? (int) $_POST['nextid'] : null;
	$taxonomy = isset($_POST['thetaxonomy']) ? esc_attr( $_POST['thetaxonomy'] ) : null;
	$term = get_term_by('id', $id, $taxonomy);
	
	if( !$id || !$term || !$taxonomy ) die(0);
	
	woocommerce_order_terms( $term, $next_id, $taxonomy );
	
	$children = get_terms($taxonomy, "child_of=$id&menu_order=ASC&hide_empty=0");
	
	if( $term && sizeof($children) ) {
		echo 'children';
		die;	
	}
}
add_action('wp_ajax_woocommerce-term-ordering', 'woocommerce_term_ordering');