← All changes | modules/shortcodes/ted.php +139 -0 16.2-beta → 16.3 View file →

		@@ -1,0 +1,139 @@
	1	+<?php
	2	+/**
	3	+ * TED Player embed code
	4	+ * http://www.ted.com
	5	+ *
	6	+ * Examples:
	7	+ * http://www.ted.com/talks/view/id/210
	8	+ * http://www.ted.com/talks/marc_goodman_a_vision_of_crimes_in_the_future.html
	9	+ * [ted id="210" lang="en"]
	10	+ * [ted id="http://www.ted.com/talks/view/id/210" lang="en"]
	11	+ * [ted id=1539 lang=fr width=560 height=315]
	12	+ *
	13	+ * @package automattic/jetpack
	14	+ */
	15	+
	16	+if ( ! defined( 'ABSPATH' ) ) {
	17	+ exit( 0 );
	18	+}
	19	+
	20	+wp_oembed_add_provider( '!https?://(www\.)?ted.com/talks/view/id/.+!i', 'https://www.ted.com/talks/oembed.json', true );
	21	+wp_oembed_add_provider( '!https?://(www\.)?ted.com/talks/[a-zA-Z\-\_]+\.html!i', 'https://www.ted.com/talks/oembed.json', true );
	22	+
	23	+/**
	24	+ * Get the unique ID of a TED video.
	25	+ * Used in Jetpack_Media_Meta_Extractor.
	26	+ *
	27	+ * @param array $atts Shortcode attributes.
	28	+ */
	29	+function jetpack_shortcode_get_ted_id( $atts ) {
	30	+ return ( ! empty( $atts['id'] ) ? $atts['id'] : 0 );
	31	+}
	32	+
	33	+/**
	34	+ * Handle Ted Shortcode.
	35	+ *
	36	+ * @param array $atts Shortcode attributes.
	37	+ */
	38	+function shortcode_ted( $atts ) {
	39	+ global $wp_embed;
	40	+
	41	+ $defaults = array(
	42	+ 'id' => '',
	43	+ 'width' => '',
	44	+ 'height' => '',
	45	+ 'lang' => 'en',
	46	+ );
	47	+ $atts = shortcode_atts( $defaults, $atts, 'ted' );
	48	+
	49	+ if ( empty( $atts['id'] ) ) {
	50	+ return '<!-- Missing TED ID -->';
	51	+ }
	52	+
	53	+ $url = '';
	54	+ if ( preg_match( '#^[\d]+$#', $atts['id'], $matches ) ) {
	55	+ $url = 'https://ted.com/talks/view/id/' . $matches[0];
	56	+ } elseif ( preg_match( '#^https?://(www\.)?ted\.com/talks/view/id/[0-9]+$#', $atts['id'], $matches ) ) {
	57	+ $url = set_url_scheme( $matches[0], 'https' );
	58	+ }
	59	+
	60	+ unset( $atts['id'] );
	61	+
	62	+ $args = array();
	63	+ $embed_size_w = get_option( 'embed_size_w' );
	64	+
	65	+ if ( is_numeric( $atts['width'] ) ) {
	66	+ $args['width'] = $atts['width'];
	67	+ } elseif ( $embed_size_w ) {
	68	+ $args['width'] = $embed_size_w;
	69	+ } elseif ( ! empty( $GLOBALS['content_width'] ) ) {
	70	+ $args['width'] = (int) $GLOBALS['content_width'];
	71	+ } else {
	72	+ $args['width'] = 500;
	73	+ }
	74	+
	75	+ // Default to a 16x9 aspect ratio if there's no height set.
	76	+ if ( is_numeric( $atts['height'] ) ) {
	77	+ $args['height'] = $atts['height'];
	78	+ } else {
	79	+ $args['height'] = $args['width'] * 0.5625;
	80	+ }
	81	+
	82	+ if ( ! empty( $atts['lang'] ) ) {
	83	+ $args['lang'] = sanitize_key( $atts['lang'] );
	84	+ add_filter( 'oembed_fetch_url', 'ted_filter_oembed_fetch_url', 10, 3 );
	85	+ }
	86	+ $retval = $wp_embed->shortcode( $args, $url );
	87	+ remove_filter( 'oembed_fetch_url', 'ted_filter_oembed_fetch_url', 10 );
	88	+
	89	+ return $retval;
	90	+}
	91	+add_shortcode( 'ted', 'shortcode_ted' );
	92	+
	93	+/**
	94	+ * Filter the request URL to also include the $lang parameter
	95	+ *
	96	+ * @param string $provider URL of provider that supplies the tweet we're requesting.
	97	+ * @param string $url URL of tweet to embed.
	98	+ * @param array $args Parameters supplied to shortcode and passed to wp_oembed_get.
	99	+ */
	100	+function ted_filter_oembed_fetch_url( $provider, $url, $args ) {
	101	+ return add_query_arg( 'lang', $args['lang'], $provider );
	102	+}
	103	+
	104	+/**
	105	+ * Filter the oembed html to set the sandbox attribute in the iframe
	106	+ *
	107	+ * @param string|false $cache The cached HTML result, stored in post meta.
	108	+ * @param string $url The attempted embed URL.
	109	+ *
	110	+ * @return string|false
	111	+ */
	112	+function ted_filter_oembed_amp_iframe( $cache, $url ) {
	113	+ if ( ! is_string( $cache ) ) {
	114	+ return $cache;
	115	+ }
	116	+
	117	+ $host = wp_parse_url( $url, PHP_URL_HOST );
	118	+ if ( ! $host ) {
	119	+ return $cache;
	120	+ }
	121	+
	122	+ $allowed_hosts = array(
	123	+ 'ted.com',
	124	+ 'www.ted.com',
	125	+ 'embed.ted.com',
	126	+ );
	127	+
	128	+ $host = strtolower( $host );
	129	+ if ( in_array( $host, $allowed_hosts, true ) ) {
	130	+ $cache = preg_replace(
	131	+ '/src=[\'"].*?[\'"]/',
	132	+ '$0 sandbox="allow-popups allow-scripts allow-same-origin"',
	133	+ $cache
	134	+ );
	135	+ }
	136	+
	137	+ return $cache;
	138	+}
	139	+add_filter( 'embed_oembed_html', 'ted_filter_oembed_amp_iframe', 10, 2 );