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<?php
// phpcs:ignoreFile
/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved
*
* This source code is licensed under the license found in the
* LICENSE file in the root directory of this source tree.
*
* @package FacebookCommerce
*/
defined( 'ABSPATH' ) || exit;
use WooCommerce\Facebook\Events\AAMSettings;
use WooCommerce\Facebook\Events\Normalizer;
use WooCommerce\Facebook\Framework\Api\Exception as ApiException;
use WooCommerce\Facebook\Products\Sync;
if ( ! class_exists( 'WC_Facebookcommerce_Utils' ) ) :
/**
* FB Graph API helper functions
*/
class WC_Facebookcommerce_Utils {
const FB_RETAILER_ID_PREFIX = 'wc_post_id_';
const PLUGIN_VERSION = \WC_Facebookcommerce::VERSION; // TODO: remove this in v2.0.0 {CW 2020-02-06}
// TODO: this constant is no longer used and can probably be removed {WV 2020-01-21}
const FB_VARIANT_IMAGE = 'fb_image';
const FB_VARIANT_SIZE = 'size';
const FB_VARIANT_COLOR = 'color';
const FB_VARIANT_COLOUR = 'colour';
const FB_VARIANT_PATTERN = 'pattern';
const FB_VARIANT_GENDER = 'gender';
public static $ems = null;
public static $store_name = null;
public static $validGenderArray =
array(
'male' => 1,
'female' => 1,
'unisex' => 1,
);
/**
* A deferred events storage.
*
* @var array
*
* @since 3.1.6
*/
private static $deferred_events = [];
/**
* Prints deferred events into page header.
*
* @return void
*
* @since 3.1.6
*/
public static function print_deferred_events() {
$deferred_events = static::load_deferred_events();
if ( ! empty( $deferred_events ) ) {
echo '<script>' . implode( PHP_EOL, $deferred_events ) . '</script>'; //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped --- Printing hardcoded JS tracking code.
}
}
/**
* Loads deferred events from the storage and cleans the storage immediately after.
*
* @return array
*
* @since 3.1.6
*/
private static function load_deferred_events(): array {
$transient_key = static::get_deferred_events_transient_key();
if ( ! $transient_key ) {
return array();
}
$deferred_events = get_transient( $transient_key );
if ( ! $deferred_events ) {
return array();
}
delete_transient( $transient_key );
return $deferred_events;
}
/**
* Adds event into the list of events to be saved/rendered.
*
* @param string $code Generated JS code string w/o a script tag.
*
* @return void
*
* @since 3.1.6
*/
public static function add_deferred_event( string $code ): void {
static::$deferred_events[] = $code;
}
/**
* Saves deferred events into the storage.
*
* @return void
*
* @since 3.1.6
*/
public static function save_deferred_events() {
$transient_key = static::get_deferred_events_transient_key();
if ( ! $transient_key ) {
return;
}
$existing_events = static::load_deferred_events();
static::$deferred_events = array_merge( $existing_events, static::$deferred_events );
if ( ! empty( static::$deferred_events ) ) {
set_transient( $transient_key, static::$deferred_events, DAY_IN_SECONDS );
}
}
/**
* Returns the transient key for deferred events based on user session.
*
* @return string
*
* @since 3.1.6
*/
private static function get_deferred_events_transient_key(): string {
if ( is_object( WC()->session ) ) {
return 'facebook_for_woocommerce_async_events_' . md5( WC()->session->get_customer_id() );
}
return '';
}
/**
* WooCommerce 2.1 support for wc_enqueue_js
*
* @since 1.2.1
*
* @access public
* @param string $code
* @return void
*/
public static function wc_enqueue_js( $code ) {
global $wc_queued_js;
// Immediately renders code in the footer.
if ( function_exists( 'wc_enqueue_js' ) && empty( $wc_queued_js ) ) {
wc_enqueue_js( $code );
} else {
$wc_queued_js = $code . "\n" . $wc_queued_js;
}
}
/**
* Validate URLs, make relative URLs absolute
*
* @access public
* @param string $url
* @return string
*/
public static function make_url( $url ) {
if (
// The first check incorrectly fails for URLs with special chars.
! filter_var( $url, FILTER_VALIDATE_URL ) &&
substr( $url, 0, 4 ) !== 'http'
) {
return get_site_url() . $url;
} else {
return $url;
}
}
/**
* Product ID for Dynamic Ads on Facebook can be SKU or wc_post_id_123
* This function should be used to get retailer_id based on a WC_Product
* from WooCommerce
*
* @access public
* @param WC_Product|WC_Facebook_Product $woo_product
* @return string
*/
public static function get_fb_retailer_id( $woo_product ) {
$woo_id = $woo_product->get_id();
/*
* Call $woo_product->get_id() instead of ->id to account for Variable
* products, which have their own variant_ids.
*/
$fb_retailer_id = $woo_product->get_sku() ?
$woo_product->get_sku() . '_' . $woo_id :
self::FB_RETAILER_ID_PREFIX . $woo_id;
/**
* Filter facebook retailer id value.
* This can be used to match retailer id generated by other Facebook plugins.
*
* @since 2.6.12
* @param string Facebook Retailer ID.
* @param WC_Product WooCommerce product.
*/
return apply_filters( 'wc_facebook_fb_retailer_id', $fb_retailer_id, $woo_product );
}
/**
* Return categories for products/pixel
*
* @access public
* @param String $id
* @return Array
*/
public static function get_product_categories( $wpid ) {
$category_path = wp_get_post_terms(
$wpid,
'product_cat',
array( 'fields' => 'all' )
);
$content_category = array_values(
array_map(
function( $item ) {
return $item->name;
},
$category_path
)
);
$content_category_slice = array_slice( $content_category, -1 );
$categories =
empty( $content_category ) ? '""' : implode( ', ', $content_category );
return array(
'name' => array_pop( $content_category_slice ),
'categories' => $categories,
);
}
/**
* Returns content id to match on for Pixel fires.
*
* @access public
* @param WC_Product $woo_product
* @return array
*/
public static function get_fb_content_ids( $woo_product ) {
return array( self::get_fb_retailer_id( $woo_product ) );
}
/**
* Clean up strings for FB Graph POSTing.
* This function should will:
* 1. Replace newlines chars/nbsp with a real space
* 2. strip_tags()
* 3. trim()
*
* @access public
* @param String string
* @return string
*/
public static function clean_string( $string ) {
/**
* Filters whether the shortcodes should be applied for a string when syncing a product or be stripped out.
*
* @since 2.6.19
*
* @param bool $apply_shortcodes Shortcodes are applied if set to `true` and stripped out if set to `false`.
* @param string $string String to clean up.
*/
$apply_shortcodes = apply_filters( 'wc_facebook_string_apply_shortcodes', false, $string );
if ( $apply_shortcodes ) {
// Apply active shortcodes
$string = do_shortcode( $string );
} else {
// Strip out active shortcodes
$string = strip_shortcodes( $string );
}
$string = str_replace( array( '&%3B', '&' ), '&', $string );
$string = str_replace( array( "\r", ' ', "\t" ), ' ', $string );
$string = wp_strip_all_tags( $string, false ); // true == remove line breaks
return $string;
}
/**
* Returns flat array of woo IDs for variable products, or
* an array with a single woo ID for simple products.
*
* @access public
* @param WC_Product|WC_Facebook_Product $woo_product
* @return array
*/
public static function get_product_array( $woo_product ) {
$result = [];
if ( self::is_variable_type( $woo_product->get_type() ) ) {
foreach ( $woo_product->get_children() as $item_id ) {
array_push( $result, $item_id );
}
return $result;
} else {
return array( $woo_product->get_id() );
}
}
/**
* Returns true if WooCommerce plugin found.
*
* @access public
* @return bool
*/
public static function isWoocommerceIntegration() {
return class_exists( 'WooCommerce' );
}
/**
* Returns integration dependent name.
*
* @access public
* @return string
*/
public static function getIntegrationName() {
if ( self::isWoocommerceIntegration() ) {
return 'WooCommerce';
} else {
return 'WordPress';
}
}
/**
* Returns user info for the current WP user.
*
* @access public
* @param AAMSettings $aam_settings
* @return array
*/
public static function get_user_info( $aam_settings ) {
$current_user = wp_get_current_user();
if ( 0 === $current_user->ID || $aam_settings == null || ! $aam_settings->get_enable_automatic_matching() ) {
// User not logged in or pixel not configured with automatic advance matching
return [];
} else {
// Keys documented in
// https://developers.facebook.com/docs/facebook-pixel/advanced/advanced-matching
$user_data = array(
'em' => $current_user->user_email,
'fn' => $current_user->user_firstname,
'ln' => $current_user->user_lastname,
'external_id' => strval( $current_user->ID ),
);
$user_id = $current_user->ID;
$user_data['ct'] = get_user_meta( $user_id, 'billing_city', true );
$user_data['zp'] = get_user_meta( $user_id, 'billing_postcode', true );
$user_data['country'] = get_user_meta( $user_id, 'billing_country', true );
$user_data['st'] = get_user_meta( $user_id, 'billing_state', true );
$user_data['ph'] = get_user_meta( $user_id, 'billing_phone', true );
// Each field that is not present in AAM settings or is empty is deleted from user data
foreach ( $user_data as $field => $value ) {
if ( $value === null || $value === ''
|| ! in_array( $field, $aam_settings->get_enabled_automatic_matching_fields() )
) {
unset( $user_data[ $field ] );
}
}
// Country is a special case, it is returned as country in AAM settings
// But used as cn in pixel
if ( array_key_exists( 'country', $user_data ) ) {
$country = $user_data['country'];
$user_data['cn'] = $country;
unset( $user_data['country'] );
}
$user_data = Normalizer::normalize_array( $user_data, true );
return $user_data;
}
}
/**
* Utility function for development logging.
*/
public static function fblog(
$message,
$object = [],
$error = false,
$ems = '' ) {
if ( $error ) {
$object['plugin_version'] = self::PLUGIN_VERSION;
$object['php_version'] = phpversion();
}
$message = json_encode(
array(
'message' => $message,
'object' => $object,
)
);
$ems = $ems ?: self::$ems;
if ( $ems ) {
try {
facebook_for_woocommerce()->get_api()->log($ems, $message, $error);
} catch ( ApiException $e ) {
$message = sprintf( 'There was an error trying to log: %s', $e->getMessage() );
facebook_for_woocommerce()->log( $message );
}
} else {
error_log(
'external merchant setting is null, something wrong here: ' .
$message
);
}
}
/**
* Utility function for development Tip Events logging.
*/
public static function tip_events_log( $tip_id, $channel_id, $event, $ems = '' ) {
$ems = $ems ?: self::$ems;
if ( $ems ) {
try {
facebook_for_woocommerce()->get_api()->log_tip_event($tip_id, $channel_id, $event);
} catch ( ApiException $e ) {
$message = sprintf( 'There was an error while logging tip events: %s', $e->getMessage() );
facebook_for_woocommerce()->log( $message );
}
} else {
error_log( 'external merchant setting is null' );
}
}
public static function is_variation_type( $type ) {
return $type == 'variation' || $type == 'subscription_variation';
}
public static function is_variable_type( $type ) {
return $type == 'variable' || $type == 'variable-subscription';
}
public static function check_woo_ajax_permissions( $action_text, $die ) {
if ( ! current_user_can( 'manage_woocommerce' ) ) {
self::log(
'Non manage_woocommerce user attempting to' . $action_text . '!',
[],
true
);
if ( $die ) {
wp_die();
}
return false;
}
return true;
}
/**
* Returns true if id is a positive non-zero integer
*
* @access public
* @param string $pixel_id
* @return bool
*/
public static function is_valid_id( $pixel_id ) {
return isset( $pixel_id ) && is_numeric( $pixel_id ) && (int) $pixel_id > 0;
}
/**
* Helper function to query posts.
*/
public static function get_wp_posts(
$product_group_id = null,
$compare_condition = null,
$post_type = 'product' ) {
$args = array(
'fields' => 'ids',
'meta_query' => array(
( ( $product_group_id ) ?
array(
'key' => $product_group_id,
'compare' => $compare_condition,
) : []
),
),
'post_status' => 'publish',
'post_type' => $post_type,
'posts_per_page' => -1,
);
return get_posts( $args );
}
/**
* Helper log function for debugging
*/
public static function log( $message ) {
// if this file is being included outside the plugin, or the plugin setting is disabled
if ( ! function_exists( 'facebook_for_woocommerce' ) || ! facebook_for_woocommerce()->get_integration()->is_debug_mode_enabled() ) {
return;
}
if ( is_array( $message ) || is_object( $message ) ) {
$message = json_encode( $message );
} else {
$message = sanitize_textarea_field( $message );
}
facebook_for_woocommerce()->log( $message );
}
// Return store name with sanitized apostrophe
public static function get_store_name() {
if ( self::$store_name ) {
return self::$store_name;
}
$apos = "\u{2019}";
$name = trim(
str_replace(
"'",
$apos,
html_entity_decode(
get_bloginfo( 'name' ),
ENT_QUOTES,
'UTF-8'
)
)
);
if ( $name ) {
self::$store_name = $name;
return $name;
}
// Fallback to site url
$url = get_site_url();
if ( $url ) {
self::$store_name = parse_url( $url, PHP_URL_HOST );
return self::$store_name;
}
// If site url doesn't exist, fall back to http host.
if ( isset( $_SERVER['HTTP_HOST'] ) ) {
self::$store_name = wc_clean( wp_unslash( $_SERVER['HTTP_HOST'] ) );
return self::$store_name;
}
// If http host doesn't exist, fall back to local host name.
$url = gethostname();
self::$store_name = $url;
return ( self::$store_name ) ? ( self::$store_name ) : 'A Store Has No Name';
}
/**
* Get visible name for variant attribute rather than the slug
*
* @param int $wp_id Post ID.
* @param string $label Attribute label.
* @param string $default_value Default value to use if the term has no name.
* @return string Term name or the default value.
*/
public static function get_variant_option_name( $wp_id, $label, $default_value ) {
$meta = get_post_meta( $wp_id, $label, true );
$attribute_name = str_replace( 'attribute_', '', $label );
$term = get_term_by( 'slug', $meta, $attribute_name );
return $term && $term->name ? $term->name : $default_value;
}
/**
* Get all products for synchronization tasks.
*
* Warning: While changing this code please make sure that it scales properly.
* Sites with big product catalogs should not experience memory problems.
*
* @return array IDs of all product for synchronization.
*/
public static function get_all_product_ids_for_sync() {
// Get all published products ids. This includes parent products of variations.
$product_args = array(
'fields' => 'ids',
'post_status' => 'publish',
'post_type' => 'product',
'posts_per_page' => -1,
);
$product_ids = get_posts( $product_args );
// Get all variations ids with their parents ids.
$variation_args = array(
'fields' => 'id=>parent',
'post_status' => 'publish',
'post_type' => 'product_variation',
'posts_per_page' => -1,
);
$variation_products = get_posts( $variation_args );
/*
* Collect all parent products.
* Exclude variations which parents are not 'publish'.
*/
$parent_product_ids = [];
foreach ( $variation_products as $post_id => $parent_id ) {
/*
* Keep track of all parents to remove them from the list of products to sync.
* Use key to automatically remove duplicated items.
*/
$parent_product_ids[ $parent_id ] = true;
// Include variations with published parents only.
if ( in_array( $parent_id, $product_ids ) ) {
$product_ids[] = $post_id;
}
}
// Remove parent products because those can't be represented as Product Items.
return array_diff( $product_ids, array_keys( $parent_product_ids ) );
}
/*
* Change variant product field name from Woo taxonomy to FB name
*/
public static function sanitize_variant_name( $name, $use_custom_data = true ) {
$name = str_replace( array( 'attribute_', 'pa_' ), '', strtolower( $name ) );
// British spelling
if ( $name === self::FB_VARIANT_COLOUR ) {
$name = self::FB_VARIANT_COLOR;
}
if ( $use_custom_data ) {
switch ( $name ) {
case self::FB_VARIANT_SIZE:
case self::FB_VARIANT_COLOR:
case self::FB_VARIANT_GENDER:
case self::FB_VARIANT_PATTERN:
break;
default:
$name = 'custom_data:' . strtolower( $name );
break;
}
}
return $name;
}
public static function validateGender( $gender ) {
if ( $gender && ! isset( self::$validGenderArray[ $gender ] ) ) {
$first_char = strtolower( substr( $gender, 0, 1 ) );
// Men, Man, Boys
if ( $first_char === 'm' || $first_char === 'b' ) {
return 'male';
}
// Women, Woman, Female, Ladies
if ( $first_char === 'w' || $first_char === 'f' || $first_char === 'l' ) {
return 'female';
}
if ( $first_char === 'u' ) {
return 'unisex';
}
if ( strlen( $gender ) >= 3 ) {
$gender = strtolower( substr( $gender, 0, 3 ) );
if ( $gender === 'gir' || $gender === 'her' ) {
return 'female';
}
if ( $gender === 'him' || $gender === 'his' || $gender == 'guy' ) {
return 'male';
}
}
return null;
}
return $gender;
}
public static function get_fbid_post_meta( $wp_id, $fbid_type ) {
return get_post_meta( $wp_id, $fbid_type, true );
}
public static function is_all_caps( $value ) {
if ( $value === null || $value === '' ) {
return true;
}
if ( preg_match( '/[^\\p{Common}\\p{Latin}]/u', $value ) ) {
// Contains non-western characters
// So, it can't be all uppercase
return false;
}
$latin_string = preg_replace( '/[^\\p{Latin}]/u', '', $value );
if ( $latin_string === '' ) {
// Symbols only
return true;
}
return strtoupper( $latin_string ) === $latin_string;
}
public static function decode_json( $json_string, $assoc = false ) {
// Plugin requires 5.6.0 but for some user use 5.5.9 JSON_BIGINT_AS_STRING
// will cause 502 issue when redirect.
return version_compare( phpversion(), '5.6.0' ) >= 0
? json_decode( $json_string, $assoc, 512, JSON_BIGINT_AS_STRING )
: json_decode( $json_string, $assoc, 512 );
}
public static function set_test_fail_reason( $msg, $trace ) {
$reason_msg = get_transient( 'facebook_plugin_test_fail' );
if ( $reason_msg ) {
$msg = $reason_msg . PHP_EOL . $msg;
}
set_transient( 'facebook_plugin_test_fail', $msg );
set_transient( 'facebook_plugin_test_stack_trace', $trace );
}
/**
* Helper function to check time cap.
*/
public static function check_time_cap( $from, $date_cap ) {
if ( $from == null ) {
return true;
}
$now = new DateTime( current_time( 'mysql' ) );
$diff_in_day = $now->diff( new DateTime( $from ) )->format( '%a' );
return is_numeric( $diff_in_day ) && (int) $diff_in_day > $date_cap;
}
public static function get_cached_best_tip() {
$cached_best_tip = self::decode_json(
get_option( 'fb_info_banner_last_best_tip', '' )
);
return $cached_best_tip;
}
/**
* Normalizes product data to be included in a sync request. /items_batch
* rather than /batch this time.
*
* @since 3.1.7
*
* @param array $data product data.
* @return array
*/
public static function normalize_product_data_for_items_batch( $data ) {
/*
* To avoid overriding the condition value, we check if the value is set or is not one of
* the allowed values before setting it to 'new'. Allowed values are 'refurbished', 'used', and 'new'.
*/
if ( ! isset( $data['condition'] ) || ! in_array( $data['condition'], array( 'refurbished', 'used', 'new' ), true ) ) {
$data['condition'] = 'new';
}
// Attributes other than size, color, pattern, or gender need to be included in the additional_variant_attributes field.
if ( isset( $data['custom_data'] ) && is_array( $data['custom_data'] ) ) {
$attributes = [];
foreach ( $data['custom_data'] as $key => $val ) {
/**
* Filter: facebook_for_woocommerce_variant_attribute_comma_replacement
*
* The Facebook API expects a comma-separated list of attributes in `additional_variant_attribute` field.
* https://developers.facebook.com/docs/marketing-api/catalog/reference/
* This means that WooCommerce product attributes included in this field should avoid the comma (`,`) character.
* Facebook for WooCommerce replaces any `,` with a space by default.
* This filter allows a site to provide a different replacement string.
*
* @since 2.5.0
*
* @param string $replacement The default replacement string (`,`).
* @param string $value Attribute value.
* @return string Return the desired replacement string.
*/
$attribute_value = str_replace(
',',
apply_filters( 'facebook_for_woocommerce_variant_attribute_comma_replacement', ' ', $val ),
$val
);
/** Force replacing , and : characters if those were not cleaned up by filters */
$attributes[] = str_replace( [ ',', ':' ], ' ', $key ) . ':' . str_replace( [ ',', ':' ], ' ', $attribute_value );
}
$data['additional_variant_attribute'] = implode( ',', $attributes );
unset( $data['custom_data'] );
}
return $data;
}
/**
* Prepares the product data to be included in a sync request.
*
* @since 3.1.7
*
* @param \WC_Product $product product object
* @return array
*/
public static function prepare_product_data_items_batch( $product ) {
$fb_product = new \WC_Facebook_Product( $product->get_id() );
$data = $fb_product->prepare_product( null, \WC_Facebook_Product::PRODUCT_PREP_TYPE_ITEMS_BATCH );
// products that are not variations use their retailer retailer ID as the retailer product group ID
$data['item_group_id'] = $data['retailer_id'];
return self::normalize_product_data_for_items_batch( $data );
}
/**
* Prepares the requests array to be included in a batch api request.
*
* @since 3.1.7
*
* @param array $product Array
* @return array
*/
public static function prepare_product_requests_items_batch( $product ) {
$product['item_group_id'] = $product['retailer_id'];
$product_data = self::normalize_product_data_for_items_batch( $product );
// extract the retailer_id
$retailer_id = $product_data['retailer_id'];
// NB: Changing this to get items_batch to work
// retailer_id cannot be included in the data object
unset( $product_data['retailer_id'] );
$product_data['id'] = $retailer_id;
$requests = array( [
'method' => Sync::ACTION_UPDATE,
'data' => $product_data,
] );
return $requests;
}
/**
* Prepares the data for a product variation to be included in a sync request.
*
* @since 3.1.7
*
* @param \WC_Product $product product object
* @return array
* @throws PluginException In case no product found.
*/
public static function prepare_product_variation_data_items_batch( $product ) {
$parent_product = wc_get_product( $product->get_parent_id() );
if ( ! $parent_product instanceof \WC_Product ) {
throw new PluginException( "No parent product found with ID equal to {$product->get_parent_id()}." );
}
$fb_parent_product = new \WC_Facebook_Product( $parent_product->get_id() );
$fb_product = new \WC_Facebook_Product( $product->get_id(), $fb_parent_product );
$data = $fb_product->prepare_product( null, \WC_Facebook_Product::PRODUCT_PREP_TYPE_ITEMS_BATCH );
// product variations use the parent product's retailer ID as the retailer product group ID
// $data['retailer_product_group_id'] = \WC_Facebookcommerce_Utils::get_fb_retailer_id( $parent_product );
$data['item_group_id'] = \WC_Facebookcommerce_Utils::get_fb_retailer_id( $parent_product );
return self::normalize_product_data_for_items_batch( $data );
}
}
endif;