<?php
/**
* Handles polling and storage of specs
*/
namespace Automattic\WooCommerce\Admin\RemoteInboxNotifications;
defined( 'ABSPATH' ) || exit;
/**
* Specs data source poller class.
* This handles polling specs from JSON endpoints, and
* stores the specs in to the database as an option.
*/
class DataSourcePoller {
const DATA_SOURCES = array(
'https://woocommerce.com/wp-json/wccom/inbox-notifications/1.0/notifications.json',
);
/**
* The logger instance.
*
* @var WC_Logger|null
*/
protected static $logger = null;
/**
* Get the logger instance.
*
* @return WC_Logger
*/
private static function get_logger() {
if ( is_null( self::$logger ) ) {
self::$logger = wc_get_logger();
}
return self::$logger;
}
/**
* Reads the data sources for specs and persists those specs.
*
* @return bool Whether any specs were read.
*/
public static function read_specs_from_data_sources() {
$specs = array();
$data_sources = apply_filters( 'woocommerce_admin_remote_inbox_data_sources', self::DATA_SOURCES );
// Note that this merges the specs from the data sources based on the
// slug - last one wins.
foreach ( $data_sources as $url ) {
$specs_from_data_source = self::read_data_source( $url, $specs );
self::merge_specs( $specs_from_data_source, $specs, $url );
}
// Persist the specs as an option.
update_option( RemoteInboxNotificationsEngine::SPECS_OPTION_NAME, $specs );
return 0 !== count( $specs );
}
/**
* Read a single data source and return the read specs
*
* @param string $url The URL to read the specs from.
*
* @return array The specs that have been read from the data source.
*/
private static function read_data_source( $url ) {
$logger_context = array( 'source' => $url );
$logger = self::get_logger();
$response = wp_remote_get( $url );
if ( is_wp_error( $response ) || ! isset( $response['body'] ) ) {
$logger->error(
'Error getting remote inbox notification data feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $response, true ), $logger_context );
return [];
}
$body = $response['body'];
$specs = json_decode( $body );
if ( null === $specs ) {
$logger->error(
'Empty response in remote inbox notification data feed',
$logger_context
);
return [];
}
if ( ! is_array( $specs ) ) {
$logger->error(
'Remote inbox notification data feed is not an array',
$logger_context
);
return [];
}
return $specs;
}
/**
* Merge the specs.
*
* @param Array $specs_to_merge_in The specs to merge in to $specs.
* @param Array $specs The list of specs being merged into.
* @param string $url The url of the feed being merged in (for error reporting).
*/
private static function merge_specs( $specs_to_merge_in, &$specs, $url ) {
foreach ( $specs_to_merge_in as $spec ) {
if ( ! self::validate_spec( $spec, $url ) ) {
continue;
}
$slug = $spec->slug;
$specs[ $slug ] = $spec;
}
}
/**
* Validate the spec.
*
* @param object $spec The spec to validate.
* @param string $url The url of the feed that provided the spec.
*
* @return bool The result of the validation.
*/
private static function validate_spec( $spec, $url ) {
$logger = self::get_logger();
$logger_context = array( 'source' => $url );
if ( ! isset( $spec->slug ) ) {
$logger->error(
'Spec is invalid because the slug is missing in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $spec, true ), $logger_context );
return false;
}
if ( ! isset( $spec->status ) ) {
$logger->error(
'Spec is invalid because the status is missing in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $spec, true ), $logger_context );
return false;
}
if ( ! isset( $spec->locales ) || ! is_array( $spec->locales ) ) {
$logger->error(
'Spec is invalid because the status is missing or empty in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $spec, true ), $logger_context );
return false;
}
if ( null === SpecRunner::get_locale( $spec->locales ) ) {
$logger->error(
'Spec is invalid because the locale could not be retrieved in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $spec, true ), $logger_context );
return false;
}
if ( ! isset( $spec->type ) ) {
$logger->error(
'Spec is invalid because the type is missing in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $spec, true ), $logger_context );
return false;
}
if ( isset( $spec->actions ) && is_array( $spec->actions ) ) {
foreach ( $spec->actions as $action ) {
if ( ! self::validate_action( $action, $url ) ) {
$logger->error(
'Spec is invalid because an action is invalid in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $spec, true ), $logger_context );
return false;
}
}
}
if ( isset( $spec->rules ) && is_array( $spec->rules ) ) {
foreach ( $spec->rules as $rule ) {
if ( ! isset( $rule->type ) ) {
$logger->error(
'Spec is invalid because a rule type is empty in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $rule, true ), $logger_context );
// phpcs:ignore
$logger->error( print_r( $spec, true ), $logger_context );
return false;
}
$processor = GetRuleProcessor::get_processor( $rule->type );
if ( ! $processor->validate( $rule ) ) {
$logger->error(
'Spec is invalid because a rule is invalid in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $rule, true ), $logger_context );
// phpcs:ignore
$logger->error( print_r( $spec, true ), $logger_context );
return false;
}
}
}
return true;
}
/**
* Validate the action.
*
* @param object $action The action to validate.
* @param string $url The url of the feed containing the action (for error reporting).
*
* @return bool The result of the validation.
*/
private static function validate_action( $action, $url ) {
$logger = self::get_logger();
$logger_context = array( 'source' => $url );
if ( ! isset( $action->locales ) || ! is_array( $action->locales ) ) {
$logger->error(
'Action is invalid because it has empty or missing locales in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $action, true ), $logger_context );
return false;
}
if ( null === SpecRunner::get_action_locale( $action->locales ) ) {
$logger->error(
'Action is invalid because the locale could not be retrieved in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $action, true ), $logger_context );
return false;
}
if ( ! isset( $action->name ) ) {
$logger->error(
'Action is invalid because the name is missing in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $action, true ), $logger_context );
return false;
}
if ( ! isset( $action->status ) ) {
$logger->error(
'Action is invalid because the status is missing in feed',
$logger_context
);
// phpcs:ignore
$logger->error( print_r( $action, true ), $logger_context );
return false;
}
return true;
}
}