113 lines
2.4 KiB
PHP
113 lines
2.4 KiB
PHP
<?php
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namespace WPML\Core\REST;
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class Status {
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const PING_KEY = 'wp-rest-enabled-ping';
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const CACHE_EXPIRATION_IN_SEC = 3600;
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const ENABLED = 'enabled';
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const DISABLED = 'disabled';
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const TIMEOUT = 'timeout';
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/** @var \WP_Http */
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private $wp_http;
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/**
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* @param \WP_Http $wp_http
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*/
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public function __construct( \WP_Http $wp_http ) {
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$this->wp_http = $wp_http;
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}
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public function isEnabled() {
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// Check this condition first to avoid infinite loop in testing PING request made below.
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if ( wpml_is_rest_request() ) {
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return true;
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}
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$filters = [ 'json_enabled', 'json_jsonp_enabled', 'rest_jsonp_enabled', 'rest_enabled' ];
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foreach ( $filters as $filter ) {
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if ( ! apply_filters( $filter, true ) ) {
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return false;
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}
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}
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return $this->is_rest_accessible();
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}
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/**
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* @return bool
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*/
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private function is_rest_accessible() {
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$value = $this->cacheInTransient(
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function () {
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return $this->pingRestEndpoint();
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}
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);
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return self::DISABLED !== $value;
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}
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/**
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* @param callable $callback
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*
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* @return mixed
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*/
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private function cacheInTransient( callable $callback ) {
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$value = get_transient( self::PING_KEY );
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if ( ! $value ) {
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$value = $callback();
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set_transient( self::PING_KEY, $value, self::CACHE_EXPIRATION_IN_SEC );
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}
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return $value;
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}
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/**
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* @return string
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*/
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private function pingRestEndpoint() {
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$url = get_rest_url( '/' );
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$response = $this->wp_http->get(
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$url,
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[
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'timeout' => 5,
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'headers' => [
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'X-WP-Nonce' => wp_create_nonce( 'wp_rest' ),
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],
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'cookies' => $this->getCookiesWithoutSessionId(),
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]
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);
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if ( is_wp_error( $response ) ) {
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return $this->isTimeout( $response ) ? self::TIMEOUT : self::DISABLED;
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}
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return isset( $response['response']['code'] ) && $response['response']['code'] === 200 ? self::ENABLED : self::DISABLED;
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}
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/**
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* The PHP session ID causes the request to be blocked if some theme/plugin
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* calls `session_start` (this always leads to hit the timeout).
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*
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* @return array
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*/
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private function getCookiesWithoutSessionId() {
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return array_diff_key( $_COOKIE, [ 'PHPSESSID' => '' ] );
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}
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/**
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* @param \WP_Error $response
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*
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* @return bool
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*/
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private function isTimeout( \WP_Error $response ) {
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return strpos( $response->get_error_message(), 'cURL error 28: Operation timed out after' ) === 0;
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}
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}
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