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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
*/
namespace WooCommerce\Facebook;
defined( 'ABSPATH' ) or exit;
use WooCommerce\Facebook\API\Request;
use WooCommerce\Facebook\API\Response;
use WooCommerce\Facebook\Events\Event;
use WooCommerce\Facebook\Framework\Api\Base;
use WooCommerce\Facebook\Framework\Api\Exception as ApiException;
/**
* API handler.
*
* @since 2.0.0
*
* @method Framework\Api\Request get_request()
*/
class API extends Base {
use API\Traits\Rate_Limited_API;
public const GRAPH_API_URL = 'https://graph.facebook.com/';
public const API_VERSION = 'v20.0';
/** @var string URI used for the request */
protected $request_uri = self::GRAPH_API_URL . self::API_VERSION;
/** @var string the configured access token */
protected $access_token;
/**
* Constructor.
*
* @since 2.0.0
*
* @param string $access_token access token to use for API requests
*/
public function __construct( $access_token ) {
$this->access_token = $access_token;
$this->request_headers = array(
'Authorization' => "Bearer {$access_token}",
);
$this->set_request_content_type_header( 'application/json' );
$this->set_request_accept_header( 'application/json' );
}
/**
* Gets the access token being used for API requests.
*
* @since 2.1.0
*
* @return string
*/
public function get_access_token() {
return $this->access_token;
}
/**
* Sets the access token to use for API requests.
*
* @since 2.1.0
*
* @param string $access_token access token to set
*/
public function set_access_token( $access_token ) {
$this->access_token = $access_token;
}
/**
* Performs an API request.
*
* @param API\Request $request request object
* @return API\Response
* @throws API\Exceptions\Request_Limit_Reached|ApiException
*/
protected function perform_request( $request ): API\Response {
$rate_limit_id = $request::get_rate_limit_id();
$delay_timestamp = $this->get_rate_limit_delay( $rate_limit_id );
// if there is a delayed timestamp in the future, throw an exception
if ( $delay_timestamp >= time() ) {
$this->handle_throttled_request( $rate_limit_id, $delay_timestamp );
} else {
$this->set_rate_limit_delay( $rate_limit_id, 0 );
}
return parent::perform_request( $request );
}
/**
* Validates a response after it has been parsed and instantiated.
*
* Throws an exception if a rate limit or general API error is included in the response.
*
* @since 2.0.0
*
* @throws ApiException
*/
protected function do_post_parse_response_validation() {
/** @var API\Response $response */
$response = $this->get_response();
$request = $this->get_request();
if ( $response && $response->has_api_error() ) {
$code = $response->get_api_error_code();
$message = sprintf( '%s: %s', $response->get_api_error_type(), $response->get_user_error_message() ?: $response->get_api_error_message() );
/**
* Graph API
*
* 4 - API Too Many Calls
* 17 - API User Too Many Calls
* 32 - Page-level throttling
* 613 - Custom-level throttling
*
* Marketing API (Catalog Batch API)
*
* 80004 - There have been too many calls to this ad-account
*
* @link https://developers.facebook.com/docs/graph-api/using-graph-api/error-handling#errorcodes
* @link https://developers.facebook.com/docs/graph-api/using-graph-api/error-handling#rate-limiting-error-codes
* @link https://developers.facebook.com/docs/marketing-api/reference/product-catalog/batch/#validation-rules
*/
if ( in_array( $code, array( 4, 17, 32, 613, 80001, 80004 ), true ) ) {
$delay_in_seconds = $this->calculate_rate_limit_delay( $response, $this->get_response_headers() );
if ( $delay_in_seconds > 0 ) {
$rate_limit_id = $request::get_rate_limit_id();
$timestamp = time() + $delay_in_seconds;
$this->set_rate_limit_delay( $rate_limit_id, $timestamp );
$this->handle_throttled_request( $rate_limit_id, $timestamp );
} else {
throw new API\Exceptions\Request_Limit_Reached( $message, $code );
}
}
/**
* Handle invalid token errors
*
* @link https://developers.facebook.com/docs/graph-api/using-graph-api/error-handling#errorcodes
*/
if ( ( $code >= 200 && $code < 300 ) || in_array( $code, array( 10, 102, 190 ), false ) ) {
set_transient( 'wc_facebook_connection_invalid', time(), DAY_IN_SECONDS );
} else {
// this was an unrelated error, so the OAuth connection may still be valid
delete_transient( 'wc_facebook_connection_invalid' );
}
// if the code indicates a retry and we've not hit the retry limit, perform the request again
if ( in_array( $code, $request->get_retry_codes(), false ) && $request->get_retry_count() < $request->get_retry_limit() ) {
$request->mark_retry();
$this->response = $this->perform_request( $request );
return;
}
throw new ApiException( $message, $code );
}
// if we get this far we're connected, so delete any invalid connection flag
delete_transient( 'wc_facebook_connection_invalid' );
}
/**
* Handles a throttled API request.
*
* @since 2.1.0
*
* @param string $rate_limit_id ID for the API request
* @param int $timestamp timestamp until the delay is over
* @throws API\Exceptions\Request_Limit_Reached
*/
private function handle_throttled_request( $rate_limit_id, $timestamp ) {
if ( time() > $timestamp ) {
return;
}
$exception = new API\Exceptions\Request_Limit_Reached( "{$rate_limit_id} requests are currently throttled.", 401 );
$date_time = new \DateTime();
$date_time->setTimestamp( $timestamp );
$exception->set_throttle_end( $date_time );
throw $exception;
}
/**
* Gets the FBE installation IDs.
*
* @param string $external_business_id External business id.
* @return API\Response|API\FBE\Installation\Read\Response
* @throws ApiException
*/
public function get_installation_ids( string $external_business_id ): API\FBE\Installation\Read\Response {
$request = new API\FBE\Installation\Read\Request( $external_business_id );
$this->set_response_handler( API\FBE\Installation\Read\Response::class );
return $this->perform_request( $request );
}
/**
* Gets a Page object from Facebook.
*
* @since 2.0.0
*
* @param string $page_id page ID
* @return API\Response|API\Pages\Read\Response
* @throws ApiException
*/
public function get_page( $page_id ): API\Pages\Read\Response {
$request = new API\Pages\Read\Request( $page_id );
$this->set_response_handler( API\Pages\Read\Response::class );
return $this->perform_request( $request );
}
/**
* Gets a Catalog object from Facebook.
*
* @param string $catalog_id Facebook catalog id.
* @return API\Response|API\Catalog\Response
* @throws ApiException
*/
public function get_catalog( string $catalog_id ): API\Catalog\Response {
$request = new API\Catalog\Request( $catalog_id );
$this->set_response_handler( API\Catalog\Response::class );
return $this->perform_request( $request );
}
/**
* Gets a user object from Facebook.
*
* @param string $user_id user ID. Defaults to the currently authenticated user
* @return API\Response|API\User\Response
* @throws ApiException
*/
public function get_user( string $user_id = '' ): API\User\Response {
$request = new API\User\Request( $user_id );
$this->set_response_handler( API\User\Response::class );
return $this->perform_request( $request );
}
/**
* Deletes user API permission.
*
* This is their form of "revoke".
*
* @param string $user_id user ID. Defaults to the currently authenticated user
* @param string $permission permission to delete
* @return API\Response|API\User\Permissions\Delete\Response
* @throws ApiException
*/
public function delete_user_permission( string $user_id, string $permission ): API\User\Permissions\Delete\Response {
$request = new API\User\Permissions\Delete\Request( $user_id, $permission );
$this->set_response_handler( API\User\Permissions\Delete\Response::class );
return $this->perform_request( $request );
}
/**
* Gets the business configuration.
*
* @param string $external_business_id external business ID
* @return API\Response|API\FBE\Configuration\Read\Response
* @throws ApiException
*/
public function get_business_configuration( $external_business_id ) {
$request = new API\FBE\Configuration\Request( $external_business_id, 'GET' );
$this->set_response_handler( API\FBE\Configuration\Read\Response::class );
return $this->perform_request( $request );
}
/**
* Updates the plugin version configuration.
*
* @param string $external_business_id external business ID
* @param string $plugin_version The plugin version.
* @return API\Response|API\FBE\Configuration\Update\Response
* @throws WooCommerce\Facebook\Framework\Api\Exception
*/
public function update_plugin_version_configuration( string $external_business_id, string $plugin_version ): API\FBE\Configuration\Update\Response {
$request = new API\FBE\Configuration\Update\Request( $external_business_id );
$request->set_plugin_version( $plugin_version );
$this->set_response_handler( API\FBE\Configuration\Update\Response::class );
return $this->perform_request( $request );
}
/**
* Uses the Catalog Batch API to update or remove items from catalog.
*
* @see Sync::create_or_update_products()
*
* @param string $facebook_product_catalog_id Facebook Product Catalog ID.
* @param array $requests array of prefixed product IDs to create, update or remove.
* @return API\Response|API\ProductCatalog\ItemsBatch\Create\Response
* @throws ApiException
*/
public function send_item_updates( string $facebook_product_catalog_id, array $requests ) {
$request = new API\ProductCatalog\ItemsBatch\Create\Request( $facebook_product_catalog_id, $requests );
$this->set_response_handler( API\ProductCatalog\ItemsBatch\Create\Response::class );
return $this->perform_request( $request );
}
/**
* Creates Facebook Product Group.
*
* @param string $product_catalog_id Facebook Product Catalog ID.
* @param array $data Facebook Product Group Data.
* @return API\Response|API\ProductCatalog\ProductGroups\Create\Response
* @throws ApiException
*/
public function create_product_group( string $product_catalog_id, array $data ): API\ProductCatalog\ProductGroups\Create\Response {
$request = new API\ProductCatalog\ProductGroups\Create\Request( $product_catalog_id, $data );
$this->set_response_handler( API\ProductCatalog\ProductGroups\Create\Response::class );
return $this->perform_request( $request );
}
/**
* Updates the default product item and the available variation attributes of a product group.
*
* @param string $product_group_id Facebook Product Group ID.
* @param array $data Facebook Product Group Data.
* @return API\ProductCatalog\ProductGroups\Update\Response
* @throws ApiException
*/
public function update_product_group( string $product_group_id, array $data ): API\ProductCatalog\ProductGroups\Update\Response {
$request = new API\ProductCatalog\ProductGroups\Update\Request( $product_group_id , $data );
$this->set_response_handler( API\ProductCatalog\ProductGroups\Update\Response::class );
return $this->perform_request( $request );
}
/**
* Deletes a Facebook Product Group object.
*
* @param string $product_group_id Facebook Product Group ID.
* @return API\ProductCatalog\ProductGroups\Delete\Response
* @throws ApiException
*/
public function delete_product_group( string $product_group_id ): API\ProductCatalog\ProductGroups\Delete\Response {
$request = new API\ProductCatalog\ProductGroups\Delete\Request( $product_group_id );
$this->set_response_handler( API\ProductCatalog\ProductGroups\Delete\Response::class );
return $this->perform_request( $request );
}
/**
* Gets a list of Product Items in the given Product Group.
*
* @param string $product_group_id product group ID
* @param int $limit max number of results returned per page of data
* @return API\Response|API\ProductCatalog\ProductGroups\Read\Response
* @throws ApiException
*/
public function get_product_group_products( string $product_group_id, int $limit = 1000 ): API\ProductCatalog\ProductGroups\Read\Response {
$request = new API\ProductCatalog\ProductGroups\Read\Request( $product_group_id, $limit );
$this->set_response_handler( API\ProductCatalog\ProductGroups\Read\Response::class );
return $this->perform_request( $request );
}
/**
* Finds a Product Item using the Catalog ID and the Retailer ID of the product or product variation.
*
* @since 2.0.0
*
* @param string $catalog_id catalog ID
* @param string $retailer_id retailer ID of the product
* @return Response
* @throws ApiException
*/
public function find_product_item( $catalog_id, $retailer_id ) {
$request = new \WooCommerce\Facebook\API\Catalog\Product_Item\Find\Request( $catalog_id, $retailer_id );
$this->set_response_handler( \WooCommerce\Facebook\API\Catalog\Product_Item\Response::class );
return $this->perform_request( $request );
}
/**
* Creates a Product under the specified Product Group.
*
* @since 2.0.0
*
* @param string $product_group_id Facebook Product Group ID.
* @param array $data Facebook Product Data.
* @return API\Response|API\ProductCatalog\Products\Create\Response
* @throws ApiException In case of network request error.
*/
public function create_product_item( string $product_group_id, array $data ): API\ProductCatalog\Products\Create\Response {
$request = new API\ProductCatalog\Products\Create\Request( $product_group_id, $data );
$this->set_response_handler( API\ProductCatalog\Products\Create\Response::class );
return $this->perform_request( $request );
}
/**
* Updates a Product Item object.
*
* @param string $facebook_product_id Facebook Product ID.
* @param array $data Product Data.
* @return API\Response|API\ProductCatalog\Products\Update\Response
* @throws ApiException In case of network request error.
*/
public function update_product_item( string $facebook_product_id, array $data ): API\ProductCatalog\Products\Update\Response {
$request = new API\ProductCatalog\Products\Update\Request( $facebook_product_id, $data );
$this->set_response_handler( API\ProductCatalog\Products\Update\Response::class );
return $this->perform_request( $request );
}
/**
* Deletes a Product Item object.
*
* @param string $facebook_product_id Facebook Product ID.
* @return API\Response|API\ProductCatalog\Products\Delete\Response
* @throws ApiException In case of network request error.
*/
public function delete_product_item( string $facebook_product_id ): API\ProductCatalog\Products\Delete\Response {
$request = new API\ProductCatalog\Products\Delete\Request( $facebook_product_id );
$this->set_response_handler( API\ProductCatalog\Products\Delete\Response::class );
return $this->perform_request( $request );
}
/**
* Returns product Facebook ID and Facebook Group ID.
*
* @param string $facebook_product_catalog_id
* @param string $facebook_retailer_id
* @return API\Response|API\ProductCatalog\Products\Id\Response
* @throws ApiException In case of network request error.
* @throws API\Exceptions\Request_Limit_Reached
*/
public function get_product_facebook_ids( string $facebook_product_catalog_id, string $facebook_retailer_id ): API\ProductCatalog\Products\Id\Response {
$request = new API\ProductCatalog\Products\Id\Request( $facebook_product_catalog_id, $facebook_retailer_id );
$this->set_response_handler( API\ProductCatalog\Products\Id\Response::class );
return $this->perform_request( $request );
}
/**
* @param string $product_catalog_id
* @param array $data
* @return API\Response|API\ProductCatalog\ProductSets\Create\Response
* @throws ApiException
* @throws API\Exceptions\Request_Limit_Reached
*/
public function create_product_set_item( string $product_catalog_id, array $data ): API\ProductCatalog\ProductSets\Create\Response {
$request = new API\ProductCatalog\ProductSets\Create\Request( $product_catalog_id, $data );
$this->set_response_handler( API\ProductCatalog\ProductSets\Create\Response::class );
return $this->perform_request( $request );
}
/**
* @param string $product_set_id
* @param array $data
* @return API\Response|API\ProductCatalog\ProductSets\Update\Response
* @throws ApiException
* @throws API\Exceptions\Request_Limit_Reached
*/
public function update_product_set_item( string $product_set_id, array $data ): API\ProductCatalog\ProductSets\Update\Response {
$request = new API\ProductCatalog\ProductSets\Update\Request( $product_set_id, $data );
$this->set_response_handler( API\ProductCatalog\ProductSets\Update\Response::class );
return $this->perform_request( $request );
}
/**
* @param string $product_set_id Facebook Product Set ID.
* @param bool $allow_live_deletion Allow live Facebook Product Set Deletion.
* @return API\Response|API\ProductCatalog\ProductSets\Delete\Response
* @throws ApiException
* @throws API\Exceptions\Request_Limit_Reached
*/
public function delete_product_set_item( string $product_set_id, bool $allow_live_deletion ): API\ProductCatalog\ProductSets\Delete\Response {
$request = new API\ProductCatalog\ProductSets\Delete\Request( $product_set_id, $allow_live_deletion );
$this->set_response_handler( API\ProductCatalog\ProductSets\Delete\Response::class );
return $this->perform_request( $request );
}
/**
* @param string $product_catalog_id
* @return API\Response|API\ProductCatalog\ProductFeeds\ReadAll\Response
* @throws ApiException
* @throws API\Exceptions\Request_Limit_Reached
*/
public function read_feeds( string $product_catalog_id ): API\ProductCatalog\ProductFeeds\ReadAll\Response {
$request = new API\ProductCatalog\ProductFeeds\ReadAll\Request( $product_catalog_id );
$this->set_response_handler( API\ProductCatalog\ProductFeeds\ReadAll\Response::class );
return $this->perform_request( $request );
}
/**
* @param string $product_feed_id Facebook Product Feed ID.
* @return Response
* @throws ApiException
* @throws API\Exceptions\Request_Limit_Reached
*/
public function read_feed( string $product_feed_id ) {
$request = new API\ProductCatalog\ProductFeeds\Read\Request( $product_feed_id );
$this->set_response_handler( API\ProductCatalog\ProductFeeds\Read\Response::class );
return $this->perform_request( $request );
}
/**
* @param string $product_feed_upload_id
* @return Response
* @throws ApiException
* @throws API\Exceptions\Request_Limit_Reached
*/
public function read_upload( string $product_feed_upload_id ) {
$request = new API\ProductCatalog\ProductFeedUploads\Read\Request( $product_feed_upload_id );
$this->set_response_handler( API\ProductCatalog\ProductFeedUploads\Read\Response::class );
return $this->perform_request( $request );
}
/**
* @param string $external_merchant_settings_id
* @return API\Response|API\Tip\Read\Response
* @throws ApiException
* @throws API\Exceptions\Request_Limit_Reached
*/
public function get_tip_info( string $external_merchant_settings_id ): API\Tip\Read\Response {
$request = new API\Tip\Read\Request( $external_merchant_settings_id );
$this->set_response_handler( API\Tip\Read\Response::class );
return $this->perform_request( $request );
}
public function log_tip_event( $tip_id, $channel_id, $event ) {
$request = new API\Tip\Log\Request( $tip_id, $channel_id, $event );
$this->set_response_handler( API\Tip\Log\Response::class );
return $this->perform_request( $request );
}
public function log( $facebook_external_merchant_settings_id, $message, $error ) {
$request = new API\Log\Create\Request( $facebook_external_merchant_settings_id, $message, $error );
$this->set_response_handler( API\Log\Create\Response::class );
return $this->perform_request( $request );
}
/**
* Sends Pixel events.
*
* @since 2.0.0
*
* @param string $pixel_id pixel ID
* @param Event[] $events events to send
* @return Response
* @throws ApiException
*/
public function send_pixel_events( $pixel_id, array $events ) {
$request = new API\Pixel\Events\Request( $pixel_id, $events );
$this->set_response_handler( Response::class );
return $this->perform_request( $request );
}
/**
* Gets the next page of results for a paginated response.
*
* @since 2.0.0
*
* @param API\Response $response previous response object
* @param int $additional_pages number of additional pages of results to retrieve
* @return API\Response|null
* @throws ApiException
*/
public function next( API\Response $response, int $additional_pages = 0 ) {
$next_response = null;
// get the next page if we haven't reached the limit of pages to retrieve and the endpoint for the next page is available
if ( ( 0 === $additional_pages || $response->get_pages_retrieved() <= $additional_pages ) && $response->get_next_page_endpoint() ) {
$components = parse_url( str_replace( $this->request_uri, '', $response->get_next_page_endpoint() ) );
$request = $this->get_new_request(
[
'path' => $components['path'] ?? '',
'method' => 'GET',
'params' => isset( $components['query'] ) ? wp_parse_args( $components['query'] ) : [],
]
);
$this->set_response_handler( get_class( $response ) );
$next_response = $this->perform_request( $request );
// this is the n + 1 page of results for the original response
$next_response->set_pages_retrieved( $response->get_pages_retrieved() + 1 );
}
return $next_response;
}
/**
* Returns a new request object.
*
* @since 2.0.0
*
* @param array $args {
* Optional. An array of request arguments.
*
* @type string $path request path
* @type string $method request method
* @type array $params request parameters
* }
* @return Request
*/
protected function get_new_request( $args = [] ) {
$defaults = array(
'path' => '/',
'method' => 'GET',
'params' => [],
);
$args = wp_parse_args( $args, $defaults );
$request = new Request( $args['path'], $args['method'] );
if ( $args['params'] ) {
$request->set_params( $args['params'] );
}
return $request;
}
/**
* Returns the plugin class instance associated with this API.
*
* @since 2.0.0
*
* @return \WC_Facebookcommerce
*/
protected function get_plugin() {
return facebook_for_woocommerce();
}
}