File "class-jetpack-woocommerce-analytics-universal.php"
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<?php
/**
* Jetpack_WooCommerce_Analytics_Universal
*
* @package automattic/jetpack
* @author Automattic
*/
use Automattic\Jetpack\Assets;
/**
* Bail if accessed directly
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Class Jetpack_WooCommerce_Analytics_Universal
* Filters and Actions added to Store pages to perform analytics
*/
class Jetpack_WooCommerce_Analytics_Universal {
/**
* Jetpack_WooCommerce_Analytics_Universal constructor.
*/
public function __construct() {
// loading _wca.
add_action( 'wp_head', array( $this, 'wp_head_top' ), 1 );
// add to carts from non-product pages or lists -- search, store etc.
add_action( 'wp_head', array( $this, 'loop_session_events' ), 2 );
// loading s.js.
add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_tracking_script' ) );
// Capture cart events.
add_action( 'woocommerce_add_to_cart', array( $this, 'capture_add_to_cart' ), 10, 6 );
// single product page view.
add_action( 'woocommerce_after_single_product', array( $this, 'capture_product_view' ) );
add_action( 'woocommerce_after_cart', array( $this, 'remove_from_cart' ) );
add_action( 'woocommerce_after_mini_cart', array( $this, 'remove_from_cart' ) );
add_action( 'wcct_before_cart_widget', array( $this, 'remove_from_cart' ) );
add_filter( 'woocommerce_cart_item_remove_link', array( $this, 'remove_from_cart_attributes' ), 10, 2 );
// Checkout.
// Send events after checkout template (shortcode).
add_action( 'woocommerce_after_checkout_form', array( $this, 'checkout_process' ) );
// Send events after checkout block.
add_action( 'woocommerce_blocks_enqueue_checkout_block_scripts_after', array( $this, 'checkout_process' ) );
// order confirmed.
add_action( 'woocommerce_thankyou', array( $this, 'order_process' ), 10, 1 );
add_action( 'woocommerce_after_cart', array( $this, 'remove_from_cart_via_quantity' ), 10, 1 );
add_filter( 'woocommerce_checkout_posted_data', array( $this, 'save_checkout_post_data' ), 10, 1 );
}
/**
* Make _wca available to queue events
*/
public function wp_head_top() {
if ( is_cart() || is_checkout() || is_checkout_pay_page() || is_order_received_page() || is_add_payment_method_page() ) {
echo '<script>window._wca_prevent_referrer = true;</script>' . "\r\n";
}
echo '<script>window._wca = window._wca || [];</script>' . "\r\n";
}
/**
* Place script to call s.js, Store Analytics.
*/
public function enqueue_tracking_script() {
$filename = sprintf(
'https://stats.wp.com/s-%d.js',
gmdate( 'YW' )
);
Assets::enqueue_async_script( 'woocommerce-analytics', esc_url( $filename ), esc_url( $filename ), array(), null, false );
}
/**
* Default event properties which should be included with all events.
*
* @return array Array of standard event props.
*/
public function get_common_properties() {
$site_info = array(
'blog_id' => Jetpack::get_option( 'id' ),
'ui' => $this->get_user_id(),
'url' => home_url(),
'woo_version' => WC()->version,
);
$cart_checkout_info = self::get_cart_checkout_info();
return array_merge( $site_info, $cart_checkout_info );
}
/**
* Render tracks event properties as string of JavaScript object props.
*
* @param array $properties Array of key/value pairs.
* @return string String of the form "key1: value1, key2: value2, " (etc).
*/
private function render_properties_as_js( $properties ) {
$js_args_string = '';
foreach ( $properties as $key => $value ) {
if ( is_array( $value ) ) {
$js_args_string = $js_args_string . "'$key': " . wp_json_encode( $value ) . ',';
} else {
$js_args_string = $js_args_string . "'$key': '" . esc_js( $value ) . "', ";
}
}
return $js_args_string;
}
/**
* Record an event with optional custom properties.
*
* @param string $event_name The name of the event to record.
* @param integer $product_id The id of the product relating to the event.
* @param array $properties Optional array of (key => value) event properties.
*
* @return string|void
*/
public function record_event( $event_name, $product_id, $properties = array() ) {
$js = $this->process_event_properties( $event_name, $product_id, $properties );
wc_enqueue_js( "_wca.push({$js});" );
}
/**
* Compose event properties.
*
* @param string $event_name The name of the event to record.
* @param integer $product_id The id of the product relating to the event.
* @param array $properties Optional array of (key => value) event properties.
*
* @return string|void
*/
public function process_event_properties( $event_name, $product_id, $properties = array() ) {
$product = wc_get_product( $product_id );
if ( ! $product instanceof WC_Product ) {
return;
}
$product_details = $this->get_product_details( $product );
$all_props = array_merge(
$properties,
$this->get_common_properties()
);
$js = "{
'_en': '" . esc_js( $event_name ) . "',
'pi': '" . esc_js( $product_id ) . "',
'pn': '" . esc_js( $product_details['name'] ) . "',
'pc': '" . esc_js( $product_details['category'] ) . "',
'pp': '" . esc_js( $product_details['price'] ) . "',
'pt': '" . esc_js( $product_details['type'] ) . "'," .
$this->render_properties_as_js( $all_props ) . '
}';
return $js;
}
/**
* On product lists or other non-product pages, add an event listener to "Add to Cart" button click
*/
public function loop_session_events() {
// Check for previous events queued in session data.
if ( is_object( WC()->session ) ) {
$data = WC()->session->get( 'wca_session_data' );
if ( ! empty( $data ) ) {
foreach ( $data as $data_instance ) {
$this->record_event(
$data_instance['event'],
$data_instance['product_id'],
array(
'pq' => $data_instance['quantity'],
)
);
}
// Clear data, now that these events have been recorded.
WC()->session->set( 'wca_session_data', '' );
}
}
}
/**
* On the cart page, add an event listener for removal of product click
*/
public function remove_from_cart() {
$common_props = $this->render_properties_as_js(
$this->get_common_properties()
);
// We listen at div.woocommerce because the cart 'form' contents get forcibly
// updated and subsequent removals from cart would then not have this click
// handler attached.
wc_enqueue_js(
"jQuery( 'div.woocommerce' ).on( 'click', 'a.remove', function() {
var productID = jQuery( this ).data( 'product_id' );
var quantity = jQuery( this ).parent().parent().find( '.qty' ).val()
var productDetails = {
'id': productID,
'quantity': quantity ? quantity : '1',
};
_wca.push( {
'_en': 'woocommerceanalytics_remove_from_cart',
'pi': productDetails.id,
'pq': productDetails.quantity, " .
$common_props . '
} );
} );'
);
}
/**
* Adds the product ID to the remove product link (for use by remove_from_cart above) if not present
*
* @param string $url Full HTML a tag of the link to remove an item from the cart.
* @param string $key Unique Key ID for a cart item.
*
* @return mixed.
*/
public function remove_from_cart_attributes( $url, $key ) {
if ( false !== strpos( $url, 'data-product_id' ) ) {
return $url;
}
$item = WC()->cart->get_cart_item( $key );
$product = $item['data'];
$new_attributes = sprintf(
'" data-product_id="%s">',
esc_attr( $product->get_id() )
);
$url = str_replace( '">', $new_attributes, $url );
return $url;
}
/**
* Gather relevant product information
*
* @param array $product product.
* @return array
*/
public function get_product_details( $product ) {
return array(
'id' => $product->get_id(),
'name' => $product->get_title(),
'category' => $this->get_product_categories_concatenated( $product ),
'price' => $product->get_price(),
'type' => $product->get_type(),
);
}
/**
* Track a product page view
*/
public function capture_product_view() {
global $product;
$this->record_event(
'woocommerceanalytics_product_view',
$product->get_id()
);
}
/**
* On the Checkout page, trigger an event for each product in the cart
*/
public function checkout_process() {
$cart = WC()->cart->get_cart();
$guest_checkout = ucfirst( get_option( 'woocommerce_enable_guest_checkout', 'No' ) );
$create_account = ucfirst( get_option( 'woocommerce_enable_signup_and_login_from_checkout', 'No' ) );
$enabled_payment_options = array_filter(
WC()->payment_gateways->get_available_payment_gateways(),
function ( $payment_gateway ) {
if ( ! $payment_gateway instanceof WC_Payment_Gateway ) {
return false;
}
return $payment_gateway->is_available();
}
);
$enabled_payment_options = array_keys( $enabled_payment_options );
$include_express_payment = false;
$wcpay_version = get_option( 'woocommerce_woocommerce_payments_version' );
$has_required_wcpay_version = version_compare( $wcpay_version, '2.9.0', '>=' );
// Check express payment availablity only if WC Pay is enabled and express checkout (payment request) is enabled.
if ( in_array( 'woocommerce_payments', $enabled_payment_options, true ) && $has_required_wcpay_version ) {
$wcpay_settings = get_option( 'woocommerce_woocommerce_payments_settings', array() );
if ( array_key_exists( 'payment_request', $wcpay_settings ) && 'yes' === $wcpay_settings['payment_request'] ) {
$include_express_payment = true;
}
}
foreach ( $cart as $cart_item_key => $cart_item ) {
/**
* This filter is already documented in woocommerce/templates/cart/cart.php
*/
$product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
if ( ! $product ) {
continue;
}
if ( true === $include_express_payment ) {
$properties = $this->process_event_properties(
'woocommerceanalytics_product_checkout',
$product->get_id(),
array(
'pq' => $cart_item['quantity'],
'payment_options' => $enabled_payment_options,
'device' => wp_is_mobile() ? 'mobile' : 'desktop',
'guest_checkout' => 'Yes' === $guest_checkout ? 'Yes' : 'No',
'create_account' => 'Yes' === $create_account ? 'Yes' : 'No',
'express_checkout' => 'null',
)
);
wc_enqueue_js(
"
// wcpay.payment-request.availability event gets fired twice.
// make sure we push only one event.
var cartItem_{$cart_item_key}_logged = false;
wp.hooks.addAction('wcpay.payment-request.availability', 'wcpay', function(args) {
if ( true === cartItem_{$cart_item_key}_logged ) {
return;
}
var properties = {$properties};
properties.express_checkout = args.paymentRequestType;
_wca.push(properties);
cartItem_{$cart_item_key}_logged = true;
});
"
);
} else {
$this->record_event(
'woocommerceanalytics_product_checkout',
$product->get_id(),
array(
'pq' => $cart_item['quantity'],
'payment_options' => $enabled_payment_options,
'device' => wp_is_mobile() ? 'mobile' : 'desktop',
'guest_checkout' => 'Yes' === $guest_checkout ? 'Yes' : 'No',
'create_account' => 'Yes' === $create_account ? 'Yes' : 'No',
'express_checkout' => 'null',
)
);
}
}
}
/**
* After the checkout process, fire an event for each item in the order
*
* @param string $order_id Order Id.
*/
public function order_process( $order_id ) {
$order = wc_get_order( $order_id );
$payment_option = $order->get_payment_method();
if ( is_object( WC()->session ) ) {
$create_account = true === WC()->session->get( 'wc_checkout_createaccount_used' ) ? 'Y' : 'N';
} else {
$create_account = 'N';
}
$guest_checkout = $order->get_user() ? 'N' : 'Y';
$express_checkout = 'null';
// When the payment option is woocommerce_payment
// See if Google Pay or Apple Pay was used.
if ( 'woocommerce_payments' === $payment_option ) {
$payment_option_title = $order->get_payment_method_title();
if ( 'Google Pay (WooCommerce Payments)' === $payment_option_title ) {
$express_checkout = array( 'google_pay' );
} elseif ( 'Apple Pay (WooCommerce Payments)' === $payment_option_title ) {
$express_checkout = array( 'apple_pay' );
}
}
// loop through products in the order and queue a purchase event.
foreach ( $order->get_items() as $order_item ) {
$product_id = is_callable( array( $order_item, 'get_product_id' ) ) ? $order_item->get_product_id() : -1;
$this->record_event(
'woocommerceanalytics_product_purchase',
$product_id,
array(
'oi' => $order->get_order_number(),
'pq' => $order_item->get_quantity(),
'device' => wp_is_mobile() ? 'mobile' : 'desktop',
'payment_option' => $payment_option,
'create_account' => $create_account,
'guest_checkout' => $guest_checkout,
'express_checkout' => $express_checkout,
)
);
}
}
/**
* Listen for clicks on the "Update Cart" button to know if an item has been removed by
* updating its quantity to zero
*/
public function remove_from_cart_via_quantity() {
$common_props = $this->render_properties_as_js(
$this->get_common_properties()
);
wc_enqueue_js(
"
jQuery( 'button[name=update_cart]' ).on( 'click', function() {
var cartItems = jQuery( '.cart_item' );
cartItems.each( function( item ) {
var qty = jQuery( this ).find( 'input.qty' );
if ( qty && qty.val() === '0' ) {
var productID = jQuery( this ).find( '.product-remove a' ).data( 'product_id' );
_wca.push( {
'_en': 'woocommerceanalytics_remove_from_cart',
'pi': productID, " .
$common_props . '
} );
}
} );
} );'
);
}
/**
* Get the current user id
*
* @return int
*/
public function get_user_id() {
if ( is_user_logged_in() ) {
$blogid = Jetpack::get_option( 'id' );
$userid = get_current_user_id();
return $blogid . ':' . $userid;
}
return 'null';
}
/**
* Track adding items to the cart.
*
* @param string $cart_item_key Cart item key.
* @param int $product_id Product added to cart.
* @param int $quantity Quantity added to cart.
* @param int $variation_id Product variation.
* @param array $variation Variation attributes..
* @param array $cart_item_data Other cart data.
*/
public function capture_add_to_cart( $cart_item_key, $product_id, $quantity, $variation_id, $variation, $cart_item_data ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
$referer_postid = isset( $_SERVER['HTTP_REFERER'] ) ? url_to_postid( esc_url_raw( wp_unslash( $_SERVER['HTTP_REFERER'] ) ) ) : 0;
// if the referring post is not a product OR the product being added is not the same as post.
// (eg. related product list on single product page) then include a product view event.
$product_by_referer_postid = wc_get_product( $referer_postid );
if ( ! $product_by_referer_postid instanceof WC_Product || (int) $product_id !== $referer_postid ) {
$this->capture_event_in_session_data( $product_id, $quantity, 'woocommerceanalytics_product_view' );
}
// add cart event to the session data.
$this->capture_event_in_session_data( $product_id, $quantity, 'woocommerceanalytics_add_to_cart' );
}
/**
* Track in-session data.
*
* @param int $product_id Product ID.
* @param int $quantity Quantity.
* @param string $event Fired event.
*/
public function capture_event_in_session_data( $product_id, $quantity, $event ) {
$product = wc_get_product( $product_id );
if ( ! $product instanceof WC_Product ) {
return;
}
$quantity = ( 0 === $quantity ) ? 1 : $quantity;
// check for existing data.
if ( is_object( WC()->session ) ) {
$data = WC()->session->get( 'wca_session_data' );
if ( empty( $data ) || ! is_array( $data ) ) {
$data = array();
}
} else {
$data = array();
}
// extract new event data.
$new_data = array(
'event' => $event,
'product_id' => (string) $product_id,
'quantity' => (string) $quantity,
);
// append new data.
$data[] = $new_data;
WC()->session->set( 'wca_session_data', $data );
}
/**
* Gets product categories or varation attributes as a formatted concatenated string
*
* @param object $product WC_Product.
* @return string
*/
public function get_product_categories_concatenated( $product ) {
if ( ! $product instanceof WC_Product ) {
return '';
}
$variation_data = $product->is_type( 'variation' ) ? wc_get_product_variation_attributes( $product->get_id() ) : '';
if ( is_array( $variation_data ) && ! empty( $variation_data ) ) {
$line = wc_get_formatted_variation( $variation_data, true );
} else {
$out = array();
$categories = get_the_terms( $product->get_id(), 'product_cat' );
if ( $categories ) {
foreach ( $categories as $category ) {
$out[] = $category->name;
}
}
$line = join( '/', $out );
}
return $line;
}
/**
* Search a specific post for text content.
*
* Note: similar code is in a WooCommerce core PR:
* https://github.com/woocommerce/woocommerce/pull/25932
*
* @param integer $post_id The id of the post to search.
* @param string $text The text to search for.
* @return integer 1 if post contains $text (otherwise 0).
*/
public static function post_contains_text( $post_id, $text ) {
global $wpdb;
// Search for the text anywhere in the post.
$wildcarded = "%{$text}%";
$result = $wpdb->get_var(
$wpdb->prepare(
"
SELECT COUNT( * ) FROM {$wpdb->prefix}posts
WHERE ID=%d
AND {$wpdb->prefix}posts.post_content LIKE %s
",
array( $post_id, $wildcarded )
)
);
return ( '0' !== $result ) ? 1 : 0;
}
/**
* Get info about the cart & checkout pages, in particular
* whether the store is using shortcodes or Gutenberg blocks.
* This info is cached in a transient.
*
* Note: similar code is in a WooCommerce core PR:
* https://github.com/woocommerce/woocommerce/pull/25932
*
* @return array
*/
public static function get_cart_checkout_info() {
$transient_name = 'jetpack_woocommerce_analytics_cart_checkout_info_cache';
$info = get_transient( $transient_name );
if ( false === $info ) {
$cart_page_id = wc_get_page_id( 'cart' );
$checkout_page_id = wc_get_page_id( 'checkout' );
$info = array(
'cart_page_contains_cart_block' => self::post_contains_text(
$cart_page_id,
'<!-- wp:woocommerce/cart'
),
'cart_page_contains_cart_shortcode' => self::post_contains_text(
$cart_page_id,
'[woocommerce_cart]'
),
'checkout_page_contains_checkout_block' => self::post_contains_text(
$checkout_page_id,
'<!-- wp:woocommerce/checkout'
),
'checkout_page_contains_checkout_shortcode' => self::post_contains_text(
$checkout_page_id,
'[woocommerce_checkout]'
),
);
set_transient( $transient_name, $info, DAY_IN_SECONDS );
}
return $info;
}
/**
* Save createaccount post data to be used in $this->order_process.
*
* @param array $data post data from the checkout page.
*
* @return array
*/
public function save_checkout_post_data( array $data ) {
$session = WC()->session;
if ( is_object( $session ) ) {
if ( isset( $data['createaccount'] ) && ! empty( $data['createaccount'] ) ) {
$session->set( 'wc_checkout_createaccount_used', true );
$session->save_data();
}
}
return $data;
}
}