jetpack / modules / shortcodes.php

shortcodes.php in Jetpack – WP Security, Backup, Speed, & Growth 6.2, at modules/shortcodes.php

197 lines 5.6 KB

Raw Download Zip

1	<?php
2
3	/**
4	* Module Name: Shortcode Embeds
5	* Module Description: Embed media from popular sites without any coding.
6	* Sort Order: 3
7	* First Introduced: 1.1
8	* Major Changes In: 1.2
9	* Requires Connection: No
10	* Auto Activate: Yes
11	* Module Tags: Photos and Videos, Social, Writing, Appearance
12	* Feature: Writing
13	* Additional Search Queries: shortcodes, shortcode, embeds, media, bandcamp, dailymotion, facebook, flickr, google calendars, google maps, google+, polldaddy, recipe, recipes, scribd, slideshare, slideshow, slideshows, soundcloud, ted, twitter, vimeo, vine, youtube
14	*/
15
16	/**
17	* Transforms the $atts array into a string that the old functions expected
18	*
19	* The old way was:
20	* [shortcode a=1&b=2&c=3] or [shortcode=1]
21	* This is parsed as array( a => '1&b=2&c=3' ) and array( 0 => '=1' ), which is useless
22	*
23	* @param array $params Array of old shortcode parameters.
24	* @param bool $old_format_support true if [shortcode=foo] format is possible.
25	*
26	* @return string $params
27	*/
28	function shortcode_new_to_old_params( $params, $old_format_support = false ) {
29	$str = '';
30
31	if ( $old_format_support && isset( $params[0] ) ) {
32	$str = ltrim( $params[0], '=' );
33	} elseif ( is_array( $params ) ) {
34	foreach ( array_keys( $params ) as $key ) {
35	if ( ! is_numeric( $key ) ) {
36	$str = $key . '=' . $params[ $key ];
37	}
38	}
39	}
40
41	return str_replace( array( '&', '&' ), '&', $str );
42	}
43
44	/**
45	* Load all available Jetpack shortcode files.
46	*/
47	function jetpack_load_shortcodes() {
48	$shortcode_includes = array();
49
50	foreach ( Jetpack::glob_php( dirname( __FILE__ ) . '/shortcodes' ) as $file ) {
51	$filename = substr( basename( $file ), 0, -4 );
52
53	$shortcode_includes[ $filename ] = $file;
54	}
55
56	/**
57	* This filter allows other plugins to override which shortcodes Jetpack loads.
58	*
59	* Fires as part of the `plugins_loaded` WP hook, so modifying code needs to be in a plugin, not in a theme's functions.php.
60	*
61	* @module shortcodes
62	*
63	* @since 2.2.1
64	* @since 4.2.0 Added filename without extension as array key.
65	*
66	* @param array $shortcode_includes An array of which shortcodes to include.
67	*/
68	$shortcode_includes = apply_filters( 'jetpack_shortcodes_to_include', $shortcode_includes );
69
70	foreach ( $shortcode_includes as $include ) {
71	include_once $include;
72	}
73	}
74
75	/**
76	* Runs preg_replace so that replacements don't happen within open tags.
77	* Parameters are the same as preg_replace, with an added optional search param for improved performance
78	*
79	* @param string $pattern Pattern to search for.
80	* @param string $replacement String to replace.
81	* @param string $content Post content.
82	* @param string $search String to search for.
83	*
84	* @return string $content Replaced post content.
85	*/
86	function jetpack_preg_replace_outside_tags( $pattern, $replacement, $content, $search = null ) {
87	if ( ! function_exists( 'wp_html_split' ) ) {
88	return $content;
89	}
90
91	if ( $search && false === strpos( $content, $search ) ) {
92	return $content;
93	}
94
95	$textarr = wp_html_split( $content );
96	unset( $content );
97	foreach ( $textarr as &$element ) {
98	if ( '' === $element \|\| '<' === $element{0} ) {
99	continue;
100	}
101	$element = preg_replace( $pattern, $replacement, $element );
102	}
103
104	return join( $textarr );
105	}
106
107	/**
108	* Runs preg_replace_callback so that replacements don't happen within open tags.
109	* Parameters are the same as preg_replace, with an added optional search param for improved performance.
110	*
111	* @param string $pattern Pattern to search for.
112	* @param string $callback Callback returning the replacement string.
113	* @param string $content Post content.
114	* @param string $search String to search for.
115	*
116	* @return string $content Replaced post content.
117	*/
118	function jetpack_preg_replace_callback_outside_tags( $pattern, $callback, $content, $search = null ) {
119	if ( ! function_exists( 'wp_html_split' ) ) {
120	return $content;
121	}
122
123	if ( $search && false === strpos( $content, $search ) ) {
124	return $content;
125	}
126
127	$textarr = wp_html_split( $content );
128	unset( $content );
129	foreach ( $textarr as &$element ) {
130	if ( '' === $element \|\| '<' === $element{0} ) {
131	continue;
132	}
133	$element = preg_replace_callback( $pattern, $callback, $element );
134	}
135
136	return join( $textarr );
137	}
138
139	if ( ! function_exists( 'jetpack_shortcode_get_wpvideo_id' ) ) {
140	/**
141	* Get VideoPress ID from wpvideo shortcode attributes.
142	*
143	* @param array $atts Shortcode attributes.
144	* @return int $id VideoPress ID.
145	*/
146	function jetpack_shortcode_get_wpvideo_id( $atts ) {
147	if ( isset( $atts[0] ) ) {
148	return $atts[0];
149	} else {
150	return 0;
151	}
152	}
153	}
154
155	if ( ! function_exists( 'jetpack_shortcode_get_videopress_id' ) ) {
156	/**
157	* Get VideoPress ID from videopress shortcode attributes.
158	*
159	* @param array $atts Shortcode attributes.
160	* @return int $id VideoPress ID.
161	*/
162	function jetpack_shortcode_get_videopress_id( $atts ) {
163	if ( isset( $atts[0] ) ) {
164	return $atts[0];
165	} else {
166	return 0;
167	}
168	}
169	}
170
171	/**
172	* Common element attributes parsing and sanitizing for src, width and height.
173	*
174	* @since 4.5.0
175	*
176	* @param array $attrs With original values.
177	*
178	* @return array $attrs With sanitized values.
179	*/
180	function wpcom_shortcodereverse_parseattr( $attrs ) {
181	$defaults = array(
182	'src' => false,
183	'width' => false,
184	'height' => false,
185	);
186
187	$attrs = shortcode_atts( $defaults, $attrs );
188
189	$attrs['src'] = strip_tags( $attrs['src'] ); // For sanity
190	$attrs['width'] = ( is_numeric( $attrs['width'] ) ) ? abs( intval( $attrs['width'] ) ) : $defaults['width'];
191	$attrs['height'] = ( is_numeric( $attrs['height'] ) ) ? abs( intval( $attrs['height'] ) ) : $defaults['height'];
192
193	return $attrs;
194	}
195
196	jetpack_load_shortcodes();
197