jetpack / modules / shortcodes / getty.php

getty.php in Jetpack – WP Security, Backup, Speed, & Growth 6.2.2, at modules/shortcodes/getty.php

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1	<?php
2	/**
3	* Getty shortcode
4	*
5	* [getty src="82278805" width="$width" height="$height"]
6	* <div class="getty embed image" style="background-color:#fff;display:inline-block;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;color:#a7a7a7;font-size:11px;width:100%;max-width:462px;"><div style="padding:0;margin:0;text-align:left;"><a href="http://www.gettyimages.com/detail/82278805" target="_blank" style="color:#a7a7a7;text-decoration:none;font-weight:normal !important;border:none;display:inline-block;">Embed from Getty Images</a></div><div style="overflow:hidden;position:relative;height:0;padding:80.086580% 0 0 0;width:100%;"><iframe src="//embed.gettyimages.com/embed/82278805?et=jGiu6FXXSpJDGf1SnwLV2g&sig=TFVNFtqghwNw5iJQ1MFWnI8f4Y40_sfogfZLhai6SfA=" width="462" height="370" scrolling="no" frameborder="0" style="display:inline-block;position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></div><p style="margin:0;"></p></div>
7	*/
8
9	if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
10	add_action( 'init', 'jetpack_getty_enable_embeds' );
11	} else {
12	jetpack_getty_enable_embeds();
13	}
14
15	/**
16	* Register Getty as oembed provider. Add filter to reverse iframes to shortcode. Register [getty] shortcode.
17	*
18	* @since 4.5.0
19	* @since 5.8.0 removed string parameter.
20	*/
21	function jetpack_getty_enable_embeds() {
22
23	// Support their oEmbed Endpoint
24	wp_oembed_add_provider( '#https?://www\.gettyimages\.com/detail/.*#i', "https://embed.gettyimages.com/oembed/", true );
25	wp_oembed_add_provider( '#https?://(www\.)?gty\.im/.*#i', "https://embed.gettyimages.com/oembed/", true );
26
27	// Allow iframes to be filtered to short code (so direct copy+paste can be done)
28	add_filter( 'pre_kses', 'wpcom_shortcodereverse_getty' );
29
30	// Actually display the Getty Embed
31	add_shortcode( 'getty', 'jetpack_getty_shortcode' );
32	}
33
34	/**
35	* Filters the oEmbed provider URL for Getty URLs to include site URL host as
36	* caller if available, falling back to "wordpress.com". Must be applied at
37	* time of embed in case that `init` is too early (WP.com REST API).
38	*
39	* @module shortcodes
40	*
41	* @since 5.8.0
42	*
43	* @see WP_oEmbed::fetch
44	*
45	* @return string oEmbed provider URL
46	*/
47	add_filter( 'oembed_fetch_url', 'getty_add_oembed_endpoint_caller' );
48
49	function getty_add_oembed_endpoint_caller( $provider ) {
50	// By time filter is called, original provider URL has had url, maxwidth,
51	// maxheight query parameters added.
52	if ( 0 !== strpos( $provider, 'https://embed.gettyimages.com/oembed/' ) ) {
53	return $provider;
54	}
55
56	// Set the caller argument to pass to Getty's oembed provider.
57	if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
58
59	// Only include caller for non-private sites
60	if ( ! function_exists( 'is_private_blog' ) \|\| ! is_private_blog() ) {
61	$host = parse_url( get_bloginfo( 'url' ), PHP_URL_HOST );
62	}
63
64	// Fall back to WordPress.com
65	if ( empty( $host ) ) {
66	$host = 'wordpress.com';
67	}
68	} else {
69	$host = parse_url( get_home_url(), PHP_URL_HOST );
70	}
71
72	return add_query_arg( 'caller', $host, $provider );
73	}
74
75	/**
76	* Compose shortcode based on Getty iframes.
77	*
78	* @since 4.5.0
79	*
80	* @param string $content
81	*
82	* @return mixed
83	*/
84	function wpcom_shortcodereverse_getty( $content ) {
85	if ( ! is_string( $content ) \|\| false === stripos( $content, '.gettyimages.com/' ) ) {
86	return $content;
87	}
88
89	$regexp = '!<iframe\s+src=[\'"](https?:)?//embed\.gettyimages\.com/embed(/\|/?\?assets=)([a-z0-9_-]+(,[a-z0-9_-]+))[^\'"]?[\'"]((?:\s+\w+=[\'"][^\'"][\'"]))((?:[\s\w]*))></iframe>!i';
90	$regexp_ent = str_replace( '&#058;', '&#058;\|&#0*58;', htmlspecialchars( $regexp, ENT_NOQUOTES ) );
91
92
93	// Markup pattern for 2017 embed syntax with significant differences from
94	// the prior pattern:
95	$regexp_2017 = '!<a.+?class=\'gie-(single\|slideshow)\'.+?gie\.widgets\.load${([^}]+)}$.+?embed-cdn\.gettyimages\.com/widgets\.js.+?</script>!';
96	$regexp_2017_ent = str_replace( '&#058;', '&#058;\|&#0*58;', htmlspecialchars( $regexp_2017, ENT_NOQUOTES ) );
97
98	foreach ( array( 'regexp_2017', 'regexp_2017_ent', 'regexp', 'regexp_ent' ) as $reg ) {
99	if ( ! preg_match_all( $$reg, $content, $matches, PREG_SET_ORDER ) ) {
100	continue;
101	}
102
103	foreach ( $matches as $match ) {
104	if ( 'regexp_2017' === $reg \|\| 'regexp_2017_ent' === $reg ) {
105	// Extract individual keys from the matched JavaScript object
106	$params = $match[2];
107	if ( ! preg_match_all( '!(?P<key>\w+)\s:\s([\'"](?P<value>[^\'"]*?)(px)?[\'"])!', $params, $key_matches, PREG_SET_ORDER ) ) {
108	continue;
109	}
110
111	foreach ( $key_matches as $key_match ) {
112	switch ( $key_match['key'] ) {
113	case 'items': $ids = $key_match['value']; break;
114	case 'w': $width = (int) $key_match['value']; break;
115	case 'h': $height = (int) $key_match['value']; break;
116	case 'tld': $tld = $key_match['value']; break;
117	}
118	}
119	} else {
120	$params = $match[5];
121	if ( 'regexp_ent' === $reg ) {
122	$params = html_entity_decode( $params );
123	}
124	$params = wp_kses_hair( $params, array( 'http' ) );
125
126	$ids = esc_html( $match[3] );
127	$width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0;
128	$height = isset( $params['height'] ) ? (int) $params['height']['value'] : 0;
129	}
130
131	if ( empty( $ids ) ) {
132	continue;
133	}
134
135	$shortcode = '[getty src="' . esc_attr( $ids ) . '"';
136	if ( ! empty( $width ) ) {
137	$shortcode .= ' width="' . esc_attr( $width ) . '"';
138	}
139	if ( ! empty( $height ) ) {
140	$shortcode .= ' height="' . esc_attr( $height ) . '"';
141	}
142	// While it does not appear to have any practical impact, Getty has
143	// requested that we include TLD in the embed request
144	if ( ! empty( $tld ) ) {
145	$shortcode .= ' tld="' . esc_attr( $tld ). '"';
146	}
147	$shortcode .= ']';
148
149	$content = str_replace( $match[0], $shortcode, $content );
150	}
151	}
152
153	// strip out enclosing div and any other markup
154	$regexp = '%<div class="getty\s[^>]+>.?<div[^>]+>(\[getty[^\]]+\])\s</div>.?</div>%is';
155	$regexp_ent = str_replace( array( '&#058;', '[^>]' ), array( '&#058;\|&#0*58;', '[^&]' ), htmlspecialchars( $regexp, ENT_NOQUOTES ) );
156
157	foreach ( array( 'regexp', 'regexp_ent' ) as $reg ) {
158	if ( ! preg_match_all( $$reg, $content, $matches, PREG_SET_ORDER ) ) {
159	continue;
160	}
161
162	foreach ( $matches as $match ) {
163	$content = str_replace( $match[0], $match[1], $content );
164	}
165	}
166
167	/** This action is documented in modules/widgets/social-media-icons.php */
168	do_action( 'jetpack_bump_stats_extras', 'html_to_shortcode', 'getty' );
169
170	return $content;
171	}
172
173	/**
174	* Parse shortcode arguments and render its output.
175	*
176	* @since 4.5.0
177	*
178	* @param array $atts Shortcode parameters.
179	* @param string $content Content enclosed by shortcode tags.
180	*
181	* @return string
182	*/
183	function jetpack_getty_shortcode( $atts, $content = '' ) {
184
185	if ( ! empty( $content ) ) {
186	$src = $content;
187	} elseif ( ! empty( $atts['src'] ) ) {
188	$src = $atts['src'];
189	} elseif ( ! empty( $atts[0] ) ) {
190	$src = $atts[0];
191	} else {
192	return '<!-- Missing Getty Source ID -->';
193	}
194
195	$src = preg_replace( '/^([\da-z-]+(,[\da-z-]+)).$/', '$1', $src );
196
197	$params = array(
198	'width' => isset( $atts['width'] ) ? (int) $atts['width'] : null,
199	'height' => isset( $atts['height'] ) ? (int) $atts['height'] : null
200	);
201
202	if ( ! empty( $atts['tld'] ) ) {
203	$params['tld'] = $atts['tld'];
204	}
205
206	return wp_oembed_get( 'https://gty.im/' . $src, array_filter( $params ) );
207	}
208