← All changes | modules/shortcodes/twitter.php +86 -0 16.2-beta → 16.3 View file →

		@@ -1,0 +1,86 @@
	1	+<?php
	2	+/**
	3	+ * Twitter/X oEmbed proxy functionality.
	4	+ *
	5	+ * This file handles proxying Twitter/X oEmbed requests through Automattic's infrastructure
	6	+ * to minimize issues with rate limiting with 404 responses from Twitter/X.
	7	+ *
	8	+ * Unlike tweet.php which handles the [tweet] shortcode, this file provides core oEmbed support
	9	+ * and is force-loaded via module-extras.php regardless of module status.
	10	+ *
	11	+ * @package automattic/jetpack
	12	+ * @since 14.5
	13	+ */
	14	+
	15	+use Automattic\Jetpack\Connection\Client;
	16	+use Automattic\Jetpack\Constants;
	17	+use Automattic\Jetpack\Status;
	18	+
	19	+if ( ! defined( 'ABSPATH' ) ) {
	20	+ exit( 0 );
	21	+}
	22	+
	23	+/**
	24	+ * Update Twitter providers to use Automattic's Twitter/X oEmbed proxy.
	25	+ *
	26	+ * See paFLeq-3QD-p2.
	27	+ *
	28	+ * @param string $provider The URL of the oEmbed provider.
	29	+ *
	30	+ * @return string The modified URL of the oEmbed provider.
	31	+ */
	32	+function jetpack_proxy_twitter_oembed_provider( $provider ) {
	33	+ if ( ! wp_startswith( $provider, 'https://publish.twitter.com/oembed' ) ) {
	34	+ return $provider;
	35	+ }
	36	+
	37	+ // Allow other plugins to override the proxy URL. This constant should be set on the WordPress.com side
	38	+ // to handle proxying after we're authenticated the request with the Jetpack token.
	39	+ $oembed_proxy_url = Constants::is_defined( 'JETPACK__TWITTER_OEMBED_PROXY_URL' )
	40	+ ? Constants::get_constant( 'JETPACK__TWITTER_OEMBED_PROXY_URL' )
	41	+ : '';
	42	+
	43	+ // If we don't have a proxy URL, then we'll try to proxy through the WordPress.com.
	44	+ // To that end, we need to make sure that we're connected to WP.com and that we're not in offline mode.
	45	+ if ( empty( $oembed_proxy_url ) ) {
	46	+ if ( ! Jetpack::is_connection_ready() || ( new Status() )->is_offline_mode() ) {
	47	+ return $provider;
	48	+ }
	49	+
	50	+ $oembed_proxy_url = esc_url_raw(
	51	+ sprintf(
	52	+ '%s/wpcom/v2/oembed-proxy',
	53	+ JETPACK__WPCOM_JSON_API_BASE,
	54	+ Jetpack_Options::get_option( 'id' )
	55	+ )
	56	+ );
	57	+
	58	+ add_filter( 'oembed_remote_get_args', 'jetpack_twitter_oembed_remote_get_args', 10, 2 );
	59	+ }
	60	+
	61	+ return str_replace( 'https://publish.twitter.com/oembed', $oembed_proxy_url, $provider );
	62	+}
	63	+add_filter( 'oembed_fetch_url', 'jetpack_proxy_twitter_oembed_provider', 10 );
	64	+
	65	+/**
	66	+ * Add JP auth headers if we're proxying through WP.com.
	67	+ *
	68	+ * @param array $args oEmbed remote get arguments.
	69	+ * @param string $url URL to be inspected.
	70	+ */
	71	+function jetpack_twitter_oembed_remote_get_args( $args, $url ) {
	72	+ if ( ! wp_startswith( $url, Constants::get_constant( 'JETPACK__WPCOM_JSON_API_BASE' ) ) ) {
	73	+ return $args;
	74	+ }
	75	+
	76	+ $method = 'GET';
	77	+ $signed_request = Client::build_signed_request(
	78	+ compact( 'url', 'method' )
	79	+ );
	80	+
	81	+ if ( is_wp_error( $signed_request ) ) {
	82	+ return $args;
	83	+ }
	84	+
	85	+ return $signed_request['request'];
	86	+}