jetpack / modules / shortcodes / archiveorg-book.php

archiveorg-book.php in Jetpack – WP Security, Backup, Speed, & Growth 7.9, at modules/shortcodes/archiveorg-book.php

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1	<?php
2	/**
3	* Archive.org Shortcode
4	*
5	* Usage:
6	* [archiveorg-book goodytwoshoes00newyiala]
7	* [archiveorg-book https://www.archive.org/stream/goodytwoshoes00newyiala]
8	* [archiveorg id=goodytwoshoes00newyiala width=480 height=430]
9
10	* <iframe src='https://www.archive.org/stream/goodytwoshoes00newyiala?ui=embed#mode/1up' width='480px' height='430px' frameborder='0' ></iframe>
11	*
12	* @package Jetpack
13	*/
14
15	/**
16	* Get ID of requested archive.org book embed.
17	*
18	* @since 4.5.0
19	*
20	* @param array $atts Shortcode attributes.
21	*
22	* @return int\|string
23	*/
24	function jetpack_shortcode_get_archiveorg_book_id( $atts ) {
25	if ( isset( $atts[0] ) ) {
26	$atts[0] = trim( $atts[0], '=' );
27	if ( preg_match( '#archive.org/stream/(.+)/?$#i', $atts[0], $match ) ) {
28	$id = $match[1];
29	} else {
30	$id = $atts[0];
31	}
32	return $id;
33	}
34	return 0;
35	}
36
37	/**
38	* Convert an archive.org book shortcode into an embed code.
39	*
40	* @since 4.5.0
41	*
42	* @param array $atts An array of shortcode attributes.
43	* @return string The embed code for the Archive.org book
44	*/
45	function jetpack_archiveorg_book_shortcode( $atts ) {
46	global $content_width;
47
48	if ( isset( $atts[0] ) && empty( $atts['id'] ) ) {
49	$atts['id'] = jetpack_shortcode_get_archiveorg_book_id( $atts );
50	}
51
52	$atts = shortcode_atts(
53	array(
54	'id' => '',
55	'width' => 480,
56	'height' => 430,
57	),
58	$atts
59	);
60
61	if ( ! $atts['id'] ) {
62	return '<!-- error: missing archive.org book ID -->';
63	}
64
65	$id = $atts['id'];
66
67	if ( ! $atts['width'] ) {
68	$width = absint( $content_width );
69	} else {
70	$width = intval( $atts['width'] );
71	}
72
73	if ( ! $atts['height'] ) {
74	$height = round( ( $width / 640 ) * 360 );
75	} else {
76	$height = intval( $atts['height'] );
77	}
78
79	$url = esc_url( "https://archive.org/stream/{$id}?ui=embed#mode/1up" );
80
81	$title = esc_html__( 'Archive.org Book', 'jetpack' );
82
83	$html = "<div class='embed-archiveorg-book' style='text-align:center;'><iframe title='$title' src='$url' width='$width' height='$height' style='border:0;' webkitallowfullscreen='true' mozallowfullscreen='true' allowfullscreen></iframe></div>";
84	return $html;
85	}
86
87	add_shortcode( 'archiveorg-book', 'jetpack_archiveorg_book_shortcode' );
88
89	/**
90	* Compose shortcode from archive.org book iframe.
91	*
92	* @since 4.5.0
93	*
94	* @param string $content Post content.
95	*
96	* @return mixed
97	*/
98	function jetpack_archiveorg_book_embed_to_shortcode( $content ) {
99	if ( ! is_string( $content ) \|\| false === stripos( $content, 'archive.org/stream/' ) ) {
100	return $content;
101	}
102
103	$regexp = '!<iframe\s+src=[\'"](http\|https)://(www.archive\|archive)\.org/stream/([^\'"]+)[\'"]((?:\s+\w+(=[\'"][^\'"][\'"])?))\s></iframe>!i';
104
105	if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) {
106	return $content;
107	}
108
109	foreach ( $matches as $match ) {
110	$url = explode( '?', $match[3] );
111	$id = $url[0];
112
113	$params = $match[4];
114
115	$params = wp_kses_hair( $params, array( 'http' ) );
116
117	$width = isset( $params['width'] ) ? absint( $params['width']['value'] ) : 0;
118	$height = isset( $params['height'] ) ? absint( $params['height']['value'] ) : 0;
119
120	$wh = '';
121	if ( $width && $height ) {
122	$wh = ' width=' . $width . ' height=' . $height;
123	}
124
125	$shortcode = '[archiveorg-book ' . $id . $wh . ']';
126	$content = str_replace( $match[0], $shortcode, $content );
127	}
128
129	return $content;
130	}
131
132	add_filter( 'pre_kses', 'jetpack_archiveorg_book_embed_to_shortcode' );
133