← All changes | modules/shortcodes/archiveorg.php +193 -0 16.2-beta → 16.3 View file →

		@@ -1,0 +1,193 @@
	1	+<?php
	2	+/**
	3	+ * Archive.org book shortcode.
	4	+ *
	5	+ * Usage:
	6	+ * [archiveorg Experime1940]
	7	+ * [archiveorg http://archive.org/details/Experime1940 poster=http://archive.org/images/map.png]
	8	+ * [archiveorg id=Experime1940 width=640 height=480 autoplay=1]
	9	+
	10	+ * <iframe src="http://archive.org/embed/Experime1940&autoplay=1&poster=http://archive.org/images/map.png" width="640" height="480" frameborder="0" webkitallowfullscreen="true" mozallowfullscreen="true" allowfullscreen></iframe>
	11	+ *
	12	+ * @package automattic/jetpack
	13	+ */
	14	+
	15	+if ( ! defined( 'ABSPATH' ) ) {
	16	+ exit( 0 );
	17	+}
	18	+
	19	+/**
	20	+ * Get ID of requested archive.org embed.
	21	+ *
	22	+ * @since 4.5.0
	23	+ *
	24	+ * @param array $atts Shortcode attributes.
	25	+ *
	26	+ * @return int|string
	27	+ */
	28	+function jetpack_shortcode_get_archiveorg_id( $atts ) {
	29	+ if ( isset( $atts[0] ) ) {
	30	+ $atts[0] = trim( $atts[0], '=' );
	31	+ if ( preg_match( '#archive.org/(details|embed)/(.+)/?$#i', $atts[0], $match ) ) {
	32	+ $id = $match[2];
	33	+ } else {
	34	+ $id = $atts[0];
	35	+ }
	36	+ return $id;
	37	+ }
	38	+ return 0;
	39	+}
	40	+
	41	+/**
	42	+ * Convert an archive.org shortcode into an embed code.
	43	+ *
	44	+ * @since 4.5.0
	45	+ *
	46	+ * @param array $atts An array of shortcode attributes.
	47	+ * @return string The embed code for the archive.org video.
	48	+ */
	49	+function jetpack_archiveorg_shortcode( $atts ) {
	50	+ global $content_width;
	51	+
	52	+ if ( isset( $atts[0] ) && empty( $atts['id'] ) ) {
	53	+ $atts['id'] = jetpack_shortcode_get_archiveorg_id( $atts );
	54	+ }
	55	+
	56	+ $atts = shortcode_atts(
	57	+ array(
	58	+ 'id' => '',
	59	+ 'width' => 640,
	60	+ 'height' => 480,
	61	+ 'autoplay' => 0,
	62	+ 'poster' => '',
	63	+ 'playlist' => 0,
	64	+ ),
	65	+ $atts
	66	+ );
	67	+
	68	+ if ( ! $atts['id'] ) {
	69	+ return '<!-- error: missing archive.org ID -->';
	70	+ }
	71	+
	72	+ $id = $atts['id'];
	73	+
	74	+ // Allow extra query parameters to be baked into the identifier, e.g. "myitem&playlist=1" or "myitem?playlist=1".
	75	+ // In some environments a the_content filter encodes "&" to "&amp;" before do_shortcode runs, so the
	76	+ // parser receives "myitem&amp;playlist=1" — normalize that back before splitting. The sibling function
	77	+ // jetpack_archiveorg_embed_to_shortcode() splits on "&amp;" for the same reason.
	78	+ $id = str_replace( '&amp;', '&', $id );
	79	+ $id_extra_args = array();
	80	+ if ( preg_match( '/^([^?&]*)[?&](.*)$/', $id, $id_match ) ) {
	81	+ $id = $id_match[1];
	82	+ wp_parse_str( $id_match[2], $id_extra_args );
	83	+ }
	84	+
	85	+ // Re-check after the split — an identifier that's only a query string (e.g. "?playlist=1") leaves $id empty
	86	+ // and would otherwise produce an item-less embed URL.
	87	+ if ( '' === $id ) {
	88	+ return '<!-- error: missing archive.org ID -->';
	89	+ }
	90	+
	91	+ if ( ! $atts['width'] ) {
	92	+ $width = absint( $content_width );
	93	+ } else {
	94	+ $width = (int) $atts['width'];
	95	+ }
	96	+
	97	+ if ( ! $atts['height'] ) {
	98	+ $height = round( ( $width / 640 ) * 360 );
	99	+ } else {
	100	+ $height = (int) $atts['height'];
	101	+ }
	102	+
	103	+ $query_args = array();
	104	+ if ( $atts['autoplay'] ) {
	105	+ $query_args['autoplay'] = 1;
	106	+ }
	107	+ if ( $atts['poster'] ) {
	108	+ $query_args['poster'] = $atts['poster'];
	109	+ }
	110	+ if ( $atts['playlist'] ) {
	111	+ $query_args['playlist'] = 1;
	112	+ }
	113	+
	114	+ // Explicit shortcode attributes take precedence over query parameters baked into the identifier.
	115	+ $query_args = array_merge( $id_extra_args, $query_args );
	116	+
	117	+ $url = 'https://archive.org/embed/' . $id;
	118	+ if ( ! empty( $query_args ) ) {
	119	+ $url = add_query_arg( $query_args, $url );
	120	+ }
	121	+
	122	+ return sprintf(
	123	+ '<div class="embed-archiveorg" style="text-align:center;"><iframe title="%s" src="%s" width="%s" height="%s" style="border:0;" webkitallowfullscreen="true" mozallowfullscreen="true" allowfullscreen></iframe></div>',
	124	+ esc_attr__( 'Archive.org', 'jetpack' ),
	125	+ esc_url( $url ),
	126	+ esc_attr( $width ),
	127	+ esc_attr( $height )
	128	+ );
	129	+}
	130	+
	131	+add_shortcode( 'archiveorg', 'jetpack_archiveorg_shortcode' );
	132	+
	133	+/**
	134	+ * Compose shortcode from archive.org iframe.
	135	+ *
	136	+ * @since 4.5.0
	137	+ *
	138	+ * @param string $content Post content.
	139	+ *
	140	+ * @return mixed
	141	+ */
	142	+function jetpack_archiveorg_embed_to_shortcode( $content ) {
	143	+ if ( ! is_string( $content ) || false === stripos( $content, 'archive.org/embed/' ) ) {
	144	+ return $content;
	145	+ }
	146	+
	147	+ $regexp = '!<iframe\s+src=[\'"]https?://archive\.org/embed/([^\'"]+)[\'"]((?:\s+\w+(=[\'"][^\'"]*[\'"])?)*)></iframe>!i';
	148	+
	149	+ if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) {
	150	+ return $content;
	151	+ }
	152	+
	153	+ foreach ( $matches as $match ) {
	154	+ $url = explode( '&amp;', $match[1] );
	155	+ $id = 'id=' . $url[0];
	156	+
	157	+ $autoplay = '';
	158	+ $poster = '';
	159	+ $url_count = count( $url );
	160	+
	161	+ for ( $ii = 1; $ii < $url_count; $ii++ ) {
	162	+ if ( 'autoplay=1' === $url[ $ii ] ) {
	163	+ $autoplay = ' autoplay="1"';
	164	+ }
	165	+
	166	+ $map_matches = array();
	167	+ if ( preg_match( '/^poster=(.+)$/', $url[ $ii ], $map_matches ) ) {
	168	+ $poster = " poster=\"{$map_matches[1]}\"";
	169	+ }
	170	+ }
	171	+
	172	+ $params = $match[2];
	173	+
	174	+ $params = wp_kses_hair( $params, array( 'http' ) );
	175	+
	176	+ $width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0;
	177	+ $height = isset( $params['height'] ) ? (int) $params['height']['value'] : 0;
	178	+
	179	+ $wh = '';
	180	+ if ( $width && $height ) {
	181	+ $wh = ' width=' . $width . ' height=' . $height;
	182	+ }
	183	+
	184	+ $shortcode = '[archiveorg ' . $id . $wh . $autoplay . $poster . ']';
	185	+ $content = str_replace( $match[0], $shortcode, $content );
	186	+ }
	187	+
	188	+ return $content;
	189	+}
	190	+
	191	+if ( jetpack_shortcodes_should_hook_pre_kses() ) {
	192	+ add_filter( 'pre_kses', 'jetpack_archiveorg_embed_to_shortcode' );
	193	+}