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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\Framework\Plugin\Exception as PluginException;
use WooCommerce\Facebook\Products;
use WooCommerce\Facebook\Products\Feed;
use WooCommerce\Facebook\Framework\Api\Exception as ApiException;
/**
* Initial Sync by Facebook feed class
*/
class WC_Facebook_Product_Feed {
/** @var string product catalog feed file directory inside the uploads folder */
const UPLOADS_DIRECTORY = 'facebook_for_woocommerce';
const FILE_NAME = 'product_catalog_%s.csv';
const FACEBOOK_CATALOG_FEED_FILENAME = 'fae_product_catalog.csv';
const FB_ADDITIONAL_IMAGES_FOR_FEED = 5;
const FEED_NAME = 'Initial product sync from WooCommerce. DO NOT DELETE.';
const FB_PRODUCT_GROUP_ID = 'fb_product_group_id';
const FB_VISIBILITY = 'fb_visibility';
private $has_default_product_count = 0;
private $no_default_product_count = 0;
/**
* Generates the product catalog feed.
*
* This replaces any previously generated feed file.
*
* @since 1.11.0
*/
public function generate_feed() {
$profiling_logger = facebook_for_woocommerce()->get_profiling_logger();
$profiling_logger->start( 'generate_feed' );
\WC_Facebookcommerce_Utils::log( 'Generating a fresh product feed file' );
try {
$start_time = microtime( true );
$this->generate_productfeed_file();
$generation_time = microtime( true ) - $start_time;
facebook_for_woocommerce()->get_tracker()->track_feed_file_generation_time( $generation_time );
\WC_Facebookcommerce_Utils::log( 'Product feed file generated' );
} catch ( \Exception $exception ) {
\WC_Facebookcommerce_Utils::log( $exception->getMessage() );
// Feed generation failed - clear the generation time to track that there's an issue.
facebook_for_woocommerce()->get_tracker()->track_feed_file_generation_time( -1 );
}
$profiling_logger->stop( 'generate_feed' );
}
/**
* Gets the product catalog feed file path.
*
* @since 1.11.0
*
* @return string
*/
public function get_file_path() {
/**
* Filters the product catalog feed file path.
*
* @since 1.11.0
*
* @param string $file_path the file path
*/
return apply_filters( 'wc_facebook_product_catalog_feed_file_path', "{$this->get_file_directory()}/{$this->get_file_name()}" );
}
/**
* Gets the product catalog temporary feed file path.
*
* @since 1.11.3
*
* @return string
*/
public function get_temp_file_path() {
/**
* Filters the product catalog temporary feed file path.
*
* @since 1.11.3
*
* @param string $file_path the temporary file path
*/
return apply_filters( 'wc_facebook_product_catalog_temp_feed_file_path', "{$this->get_file_directory()}/{$this->get_temp_file_name()}" );
}
/**
* Gets the product catalog feed file directory.
*
* @since 1.11.0
*
* @return string
*/
public function get_file_directory() {
$uploads_directory = wp_upload_dir( null, false );
return trailingslashit( $uploads_directory['basedir'] ) . self::UPLOADS_DIRECTORY;
}
/**
* Gets the product catalog feed file name.
*
* @since 1.11.0
*
* @return string
*/
public function get_file_name() {
$file_name = sprintf( self::FILE_NAME, wp_hash( Feed::get_feed_secret() ) );
/**
* Filters the product catalog feed file name.
*
* @since 1.11.0
*
* @param string $file_name the file name
*/
return apply_filters( 'wc_facebook_product_catalog_feed_file_name', $file_name );
}
/**
* Gets the product catalog temporary feed file name.
*
* @since 1.11.3
*
* @return string
*/
public function get_temp_file_name() {
$file_name = sprintf( self::FILE_NAME, 'temp_' . wp_hash( Feed::get_feed_secret() ) );
/**
* Filters the product catalog temporary feed file name.
*
* @since 1.11.3
*
* @param string $file_name the temporary file name
*/
return apply_filters( 'wc_facebook_product_catalog_temp_feed_file_name', $file_name );
}
/**
* Gets the product IDs that will be included in the feed file.
*
* @since 1.11.0
*
* @return int[]
*/
private function get_product_ids() {
return \WC_Facebookcommerce_Utils::get_all_product_ids_for_sync();
}
/**
* Generates the product catalog feed file.
*
* @return bool
* @throws PluginException
*/
public function generate_productfeed_file() {
if ( ! wp_mkdir_p( $this->get_file_directory() ) ) {
throw new PluginException( __( 'Could not create product catalog feed directory', 'facebook-for-woocommerce' ), 500 );
}
$this->create_files_to_protect_product_feed_directory();
return $this->write_product_feed_file( $this->get_product_ids() );
}
/**
* Creates files in the catalog feed directory to prevent directory listing and hotlinking.
*
* @since 1.11.0
*/
public function create_files_to_protect_product_feed_directory() {
$catalog_feed_directory = trailingslashit( $this->get_file_directory() );
$files = array(
array(
'base' => $catalog_feed_directory,
'file' => 'index.html',
'content' => '',
),
array(
'base' => $catalog_feed_directory,
'file' => '.htaccess',
'content' => 'deny from all',
),
);
foreach ( $files as $file ) {
if ( wp_mkdir_p( $file['base'] ) && ! file_exists( trailingslashit( $file['base'] ) . $file['file'] ) ) {
if ( $file_handle = @fopen( trailingslashit( $file['base'] ) . $file['file'], 'w' ) ) {
fwrite( $file_handle, $file['content'] );
fclose( $file_handle );
}
}
}
}
/**
* Writes the product catalog feed file with data for the given product IDs.
*
* @since 1.11.0
*
* @param int[] $wp_ids product IDs
* @return bool
*/
public function write_product_feed_file( $wp_ids ) {
try {
// Step 1: Prepare the temporary empty feed file with header row.
$temp_feed_file = $this->prepare_temporary_feed_file();
// Step 2: Write products feed into the temporary feed file.
$this->write_products_feed_to_temp_file( $wp_ids, $temp_feed_file );
// Step 3: Rename temporary feed file to final feed file.
$this->rename_temporary_feed_file_to_final_feed_file();
$written = true;
} catch ( Exception $e ) {
WC_Facebookcommerce_Utils::log( json_encode( $e->getMessage() ) );
$written = false;
// close the temporary file
if ( ! empty( $temp_feed_file ) && is_resource( $temp_feed_file ) ) {
fclose( $temp_feed_file );
}
// delete the temporary file
if ( ! empty( $temp_file_path ) && file_exists( $temp_file_path ) ) {
unlink( $temp_file_path );
}
}
return $written;
}
/**
* Prepare a fresh empty temporary feed file with the header row.
*
* @since 2.6.6
*
* @throws PluginException We can't open the file or the file is not writable.
* @return resource A file pointer resource.
*/
public function prepare_temporary_feed_file() {
$temp_file_path = $this->get_temp_file_path();
$temp_feed_file = @fopen( $temp_file_path, 'w' );
// check if we can open the temporary feed file
if ( false === $temp_feed_file || ! is_writable( $temp_file_path ) ) {
throw new PluginException( __( 'Could not open the product catalog temporary feed file for writing', 'facebook-for-woocommerce' ), 500 );
}
$file_path = $this->get_file_path();
// check if we will be able to write to the final feed file
if ( file_exists( $file_path ) && ! is_writable( $file_path ) ) {
throw new PluginException( __( 'Could not open the product catalog feed file for writing', 'facebook-for-woocommerce' ), 500 );
}
fwrite( $temp_feed_file, $this->get_product_feed_header_row() );
return $temp_feed_file;
}
/**
* Write products feed into a file.
*
* @since 2.6.6
*
* @return void
*/
public function write_products_feed_to_temp_file( $wp_ids, $temp_feed_file ) {
$product_group_attribute_variants = array();
foreach ( $wp_ids as $wp_id ) {
$woo_product = new WC_Facebook_Product( $wp_id );
// Skip if we don't have a valid product object.
if ( ! $woo_product->woo_product instanceof \WC_Product ) {
continue;
}
// Skip if not enabled for sync.
if ( ! facebook_for_woocommerce()->get_product_sync_validator( $woo_product->woo_product )->passes_all_checks() ) {
continue;
}
$product_data_as_feed_row = $this->prepare_product_for_feed(
$woo_product,
$product_group_attribute_variants
);
if ( ! empty( $temp_feed_file ) ) {
fwrite( $temp_feed_file, $product_data_as_feed_row );
}
}
wp_reset_postdata();
if ( ! empty( $temp_feed_file ) ) {
fclose( $temp_feed_file );
}
}
/**
* Rename temporary feed file into the final feed file.
* This is the last step fo the feed generation procedure.
*
* @since 2.6.6
*
* @return void
*/
public function rename_temporary_feed_file_to_final_feed_file() {
$file_path = $this->get_file_path();
$temp_file_path = $this->get_temp_file_path();
if ( ! empty( $temp_file_path ) && ! empty( $file_path ) ) {
$renamed = rename( $temp_file_path, $file_path );
if ( empty( $renamed ) ) {
throw new PluginException( __( 'Could not rename the product catalog feed file', 'facebook-for-woocommerce' ), 500 );
}
}
}
public function get_product_feed_header_row() {
return 'id,title,description,image_link,link,product_type,' .
'brand,price,availability,item_group_id,checkout_url,' .
'additional_image_link,sale_price_effective_date,sale_price,condition,' .
'visibility,gender,color,size,pattern,google_product_category,default_product,variant' . PHP_EOL;
}
/**
* Assembles product payload in feed upload for initial sync.
*
* @param \WC_Facebook_Product $woo_product WooCommerce product object normalized by Facebook
* @param array $attribute_variants passed by reference
* @return string product feed line data
*/
private function prepare_product_for_feed( $woo_product, &$attribute_variants ) {
$product_data = $woo_product->prepare_product( null, \WC_Facebook_Product::PRODUCT_PREP_TYPE_FEED );
$item_group_id = $product_data['retailer_id'];
// prepare variant column for variable products
$product_data['variant'] = '';
if ( $woo_product->is_type( 'variation' ) ) {
$parent_id = $woo_product->get_parent_id();
if ( ! isset( $attribute_variants[ $parent_id ] ) ) {
$parent_product = new \WC_Facebook_Product( $parent_id );
$gallery_urls = array_filter( $parent_product->get_gallery_urls() );
$variation_id = $parent_product->find_matching_product_variation();
$variants_for_group = $parent_product->prepare_variants_for_group( true );
$parent_attribute_values = array(
'gallery_urls' => $gallery_urls,
'default_variant_id' => $variation_id,
'item_group_id' => \WC_Facebookcommerce_Utils::get_fb_retailer_id( $parent_product ),
);
foreach ( $variants_for_group as $variant ) {
if ( isset( $variant['product_field'], $variant['options'] ) ) {
$parent_attribute_values[ $variant['product_field'] ] = $variant['options'];
}
}
// cache product group variants
$attribute_variants[ $parent_id ] = $parent_attribute_values;
} else {
$parent_attribute_values = $attribute_variants[ $parent_id ];
}
$variants_for_item = $woo_product->prepare_variants_for_item( $product_data );
$variant_feed_column = array();
foreach ( $variants_for_item as $variant_array ) {
static::format_variant_for_feed(
$variant_array['product_field'],
$variant_array['options'][0],
$parent_attribute_values,
$variant_feed_column
);
}
if ( isset( $product_data['custom_data'] ) && is_array( $product_data['custom_data'] ) ) {
foreach ( $product_data['custom_data'] as $product_field => $value ) {
static::format_variant_for_feed(
$product_field,
$value,
$parent_attribute_values,
$variant_feed_column
);
}
}
if ( ! empty( $variant_feed_column ) ) {
$product_data['variant'] = '"' . implode( ',', $variant_feed_column ) . '"';
}
if ( isset( $parent_attribute_values['gallery_urls'] ) ) {
$product_data['additional_image_urls'] = array_merge( $product_data['additional_image_urls'], $parent_attribute_values['gallery_urls'] );
}
if ( isset( $parent_attribute_values['item_group_id'] ) ) {
$item_group_id = $parent_attribute_values['item_group_id'];
}
$product_data['default_product'] = $parent_attribute_values['default_variant_id'] == $woo_product->id ? 'default' : '';
// If this group has default variant value, log this product item
if ( isset( $parent_attribute_values['default_variant_id'] ) && ! empty( $parent_attribute_values['default_variant_id'] ) ) {
$this->has_default_product_count++;
} else {
$this->no_default_product_count++;
}
}
// log simple product
if ( ! isset( $product_data['default_product'] ) ) {
$this->no_default_product_count++;
$product_data['default_product'] = '';
}
// when dealing with the feed file, only set out-of-stock products as hidden
if ( Products::product_should_be_deleted( $woo_product->woo_product ) ) {
$product_data['visibility'] = \WC_Facebookcommerce_Integration::FB_SHOP_PRODUCT_HIDDEN;
}
// Sale price, only format if we have a sale price set for the product, else leave as empty ('').
$sale_price = static::get_value_from_product_data( $product_data, 'sale_price', '' );
$sale_price_effective_date = '';
if ( is_numeric( $sale_price ) && $sale_price > 0 ) {
$sale_price_effective_date = static::get_value_from_product_data( $product_data, 'sale_price_start_date' ) . '/' . $this->get_value_from_product_data( $product_data, 'sale_price_end_date' );
$sale_price = static::format_price_for_feed(
$sale_price,
static::get_value_from_product_data( $product_data, 'currency' )
);
}
return $product_data['retailer_id'] . ',' .
static::format_string_for_feed( static::get_value_from_product_data( $product_data, 'name' ) ) . ',' .
static::format_string_for_feed( static::get_value_from_product_data( $product_data, 'description' ) ) . ',' .
static::get_value_from_product_data( $product_data, 'image_url' ) . ',' .
static::get_value_from_product_data( $product_data, 'url' ) . ',' .
static::format_string_for_feed( static::get_value_from_product_data( $product_data, 'category' ) ) . ',' .
static::format_string_for_feed( static::get_value_from_product_data( $product_data, 'brand' ) ) . ',' .
static::format_price_for_feed(
static::get_value_from_product_data( $product_data, 'price', 0 ),
static::get_value_from_product_data( $product_data, 'currency' )
) . ',' .
static::get_value_from_product_data( $product_data, 'availability' ) . ',' .
$item_group_id . ',' .
static::get_value_from_product_data( $product_data, 'checkout_url' ) . ',' .
static::format_additional_image_url( static::get_value_from_product_data( $product_data, 'additional_image_urls' ) ) . ',' .
$sale_price_effective_date . ',' .
$sale_price . ',' .
'new' . ',' .
static::get_value_from_product_data( $product_data, 'visibility' ) . ',' .
static::get_value_from_product_data( $product_data, 'gender' ) . ',' .
static::get_value_from_product_data( $product_data, 'color' ) . ',' .
static::get_value_from_product_data( $product_data, 'size' ) . ',' .
static::get_value_from_product_data( $product_data, 'pattern' ) . ',' .
static::get_value_from_product_data( $product_data, 'google_product_category' ) . ',' .
static::get_value_from_product_data( $product_data, 'default_product' ) . ',' .
static::get_value_from_product_data( $product_data, 'variant' ) . PHP_EOL;
}
private static function format_additional_image_url( $product_image_urls ) {
// returns the top 10 additional image urls separated by a comma
// according to feed api rules
$product_image_urls = array_slice(
$product_image_urls,
0,
self::FB_ADDITIONAL_IMAGES_FOR_FEED
);
if ( $product_image_urls ) {
return '"' . implode( ',', $product_image_urls ) . '"';
} else {
return '';
}
}
private static function format_string_for_feed( $text ) {
if ( (bool) $text ) {
return '"' . str_replace( '"', "'", $text ) . '"';
} else {
return '';
}
}
private static function format_price_for_feed( $value, $currency ) {
return (string) ( round( $value / (float) 100, 2 ) ) . $currency;
}
private static function format_variant_for_feed(
$product_field,
$value,
$parent_attribute_values,
&$variant_feed_column ) {
if ( ! array_key_exists( $product_field, $parent_attribute_values ) ) {
return;
}
array_push(
$variant_feed_column,
$product_field . ':' .
implode( '/', $parent_attribute_values[ $product_field ] ) . ':' .
$value
);
}
/**
* Gets the value from the product data.
*
* This method is used to avoid PHP undefined index notices.
*
* @since 2.1.0
*
* @param array $product_data the product data retrieved from a Woo product passed by reference
* @param string $index the data index
* @param mixed $return_if_not_set the value to be returned if product data has no index (default to '')
* @return mixed|string the data value or an empty string
*/
private static function get_value_from_product_data( &$product_data, $index, $return_if_not_set = '' ) {
return isset( $product_data[ $index ] ) ? $product_data[ $index ] : $return_if_not_set;
}
/**
* Gets the status of the configured feed upload.
*
* The status indicator is one of 'in progress', 'complete', or 'error'.
*
* @param array $settings
* @return string
*/
public function is_upload_complete( &$settings ) {
try {
$upload_status = 'error';
$upload_id = facebook_for_woocommerce()->get_integration()->get_upload_id();
$result = facebook_for_woocommerce()->get_api()->read_upload( $upload_id );
if ( is_wp_error( $result ) || ! isset( $result['body'] ) ) {
$this->log_feed_progress( json_encode( $result ) );
return $upload_status;
}
if ( isset( $result->end_time ) ) {
$settings['upload_end_time'] = $result->end_time;
$upload_status = 'complete';
} elseif ( 200 === (int) wp_remote_retrieve_response_code( $result ) ) {
$upload_status = 'in progress';
}
} catch ( ApiException $e ) {
$message = sprintf( 'There was an error trying to upload the configured feed: %s', $e->getMessage() );
facebook_for_woocommerce()->log( $message );
}
return $upload_status;
}
// Log progress in local log file and FB.
public function log_feed_progress( $msg, $object = array() ) {
WC_Facebookcommerce_Utils::fblog( $msg, $object );
$msg = empty( $object ) ? $msg : $msg . json_encode( $object );
WC_Facebookcommerce_Utils::log( $msg );
}
}