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