jetpack / modules / shortcodes / googleapps.php

googleapps.php in Jetpack – WP Security, Backup, Speed, & Growth 7.1, at modules/shortcodes/googleapps.php

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1	<?php
2
3	/**
4	* Google Docs and Google Calendar Shortcode
5	*
6	* Presentation:
7	* <iframe src="https://docs.google.com/present/embed?id=dhfhrphh_123drp8s65c&interval=15&autoStart=true&loop=true&size=l" frameborder="0" width="700" height="559"></iframe>
8	* <iframe src="https://docs.google.com/presentation/embed?id=13ItX4jV0SOSdr-ZjHarcpTh9Lr4omfsHAp87jpxv8-0&start=false&loop=false&delayms=3000" frameborder="0" width="960" height="749" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe>
9	*
10	* Document:
11	* <iframe src="https://docs.google.com/document/pub?id=1kDatklacdZ_tZUOpWtt_ONzY97Ldj2zFcuO9LBY2Ln4&embedded=true"></iframe>
12	* <iframe src="https://docs.google.com/document/d/1kDatklacdZ_tZUOpWtt_ONzY97Ldj2zFcuO9LBY2Ln4/pub?embedded=true"></iframe>
13	* <iframe src="https://docs.google.com/document/d/e/2PACX-1vRkpIdasKL-eKXDjJgpEONduUspZTz0YmKaajfie0eJYnzikuyusuG1_V8X8T9XflN9l8A1oCM2sgEA/pub?embedded=true"></iframe>
14	*
15	* External document:
16	* <iframe width=100% height=560px frameborder=0 src=https://docs.google.com/a/pranab.in/viewer?a=v&pid=explorer&chrome=false&embedded=true&srcid=1VTMwdgGiDMt8MCr75-YkQP-4u9WmEp1Qvf6C26KYBgFilxU2qndpd-VHhBIn&hl=en></iframe>
17	*
18	* Spreadsheet Form:
19	* <iframe src="https://spreadsheets.google.com/embeddedform?formkey=dEVOYnMzZG5jMUpGbjFMYjFYNVB3NkE6MQ" width="760" height="710" frameborder="0" marginheight="0" marginwidth="0">Loading...</iframe>
20	*
21	* Spreadsheet Widget:
22	* <iframe width='500' height='300' frameborder='0' src='https://spreadsheets1.google.com/a/petedavies.com/pub?hl=en&hl=en&key=0AjSij7nlnXvKdHNsNjRSWG12YmVfOEFwdlMxQ3J1S1E&single=true&gid=0&output=html&widget=true'></iframe>
23	* <iframe width='500' height='300' frameborder='0' src='https://spreadsheets.google.com/spreadsheet/pub?hl=en&hl=en&key=0AhInIwfvYrIUdGJiTXhtUEhBSFVPUzdRZU5OMDlqdnc&output=html&widget=true'></iframe>
24	*
25	* Calendar:
26	* <iframe src="https://www.google.com/calendar/embed?src=serjant%40gmail.com&ctz=Europe/Sofia" style="border: 0" width="800" height="600" frameborder="0" scrolling="no"></iframe>
27	* <iframe src="http://www.google.com/calendar/hosted/belcastro.com/embed?src=n8nr8sd6v9hnus3nmlk7ed1238%40group.calendar.google.com&ctz=Europe/Zurich" style="border: 0" width="800" height="600" frameborder="0" scrolling="no"></iframe>
28	*
29	* Customized calendar:
30	* <iframe src="https://www.google.com/calendar/embed?title=asdf&showTitle=0&showNav=0&showDate=0&showPrint=0&showTabs=0&showCalendars=0&
31	* showTz=0&mode=AGENDA&height=300&wkst=2&hl=fi&bgcolor=%23ffcccc&src=m52gdmbgelo3itf00u1v44g0ns%40group.calendar.google.com&color=%234E5D6C&
32	* src=serjant%40gmail.com&color=%235229A3&ctz=Europe%2FRiga" style=" border:solid 1px #777 " width="500" height="300" frameborder="0" scrolling="no"></iframe>
33	*
34	* Generic
35	* <iframe src="https://docs.google.com/file/d/0B0SIdZW7iu-zX1RWREJpMXVHZVU/preview" width="640" height="480"></iframe>
36	*/
37
38	add_filter( 'pre_kses', 'googleapps_embed_to_shortcode' );
39	add_shortcode( 'googleapps', 'googleapps_shortcode' );
40
41	/**
42	* Reverse iframe embed to shortcode mapping HTML attributes to shortcode attributes.
43	*
44	* @since 4.5.0
45	*
46	* @param string $content
47	*
48	* @return mixed
49	*/
50	function googleapps_embed_to_shortcode( $content ) {
51	if ( ! is_string( $content ) \|\| false === stripos( $content, '<iframe' ) && false === stripos( $content, '.google.com' ) ) {
52	return $content;
53	}
54
55	$regexp = '#<iframe((?:\s+\w+="[^"]")?)\ssrc="https?://(docs\|drive\|spreadsheets\d\|calendar\|www)\.google\.com/(?!maps)([-\w\./]+)(?:\?)?([^"]+)?"\s((?:\s+\w+="[^"]")?)>.*?</iframe>#i';
56	$regexp_ent = str_replace( '&#058;', '&#058;\|&#0*58;', htmlspecialchars( $regexp, ENT_NOQUOTES ) );
57	$regexp_squot = str_replace( '"', "'", $regexp );
58	$regexp_ent_squot = str_replace( '"', "'", $regexp_ent );
59	$regexp_noquot = '!<iframe(.?)src=https://(docs\|drive)\.google\.com/[-\.\w/]?(viewer)\?(.?)>(.?)</iframe>!';
60	$regexp_ent_noquot = str_replace( '&#058;', '&#058;\|&#0*58;', htmlspecialchars( $regexp_noquot, ENT_NOQUOTES ) );
61
62	foreach ( array( 'regexp', 'regexp_ent', 'regexp_squot', 'regexp_ent_squot', 'regexp_noquot', 'regexp_ent_noquot' ) as $reg ) {
63	if ( ! preg_match_all( $$reg, $content, $matches, PREG_SET_ORDER ) ) {
64	continue;
65	}
66
67	foreach ( $matches as $match ) {
68	$params = $match[1] . $match[5];
69	if ( in_array( $reg, array( 'regexp_ent', 'regexp_ent_squot' ) ) ) {
70	$params = html_entity_decode( $params );
71	}
72
73	$params = wp_kses_hair( $params, array( 'http' ) );
74
75	$width = $height = 0;
76	if ( isset( $params['width'] ) ) {
77	$width = (int) $params['width']['value'];
78	}
79
80	if ( isset( $params['height'] ) ) {
81	$height = (int) $params['height']['value'];
82	}
83
84	// allow the user to specify width greater than 200 inside text widgets
85	if ( $width > 400 && isset( $_POST['widget-text'] ) ) {
86	$width = 200;
87	$height = 200;
88	}
89
90	$attributes = '';
91	if ( isset( $params['width'] ) && '100%' == $params['width']['value'] ) {
92	$width = '100%';
93	}
94
95	if ( $width ) {
96	$attributes = ' width="' . $width . '"';
97	}
98
99	if ( $height ) {
100	$attributes .= ' height="' . $height . '"';
101	}
102
103	$domain = 'spreadsheets';
104	if ( in_array( $match[2], array( 'docs', 'drive', 'www', 'calendar' ) ) ) {
105	$domain = $match[2];
106	}
107
108	// Make sure this is actually something that the shortcode supports. If it's not, leave the HTML alone.
109	if ( ! googleapps_validate_domain_and_dir( $domain, $match[3] ) ) {
110	continue;
111	}
112
113	/** This action is documented in modules/widgets/social-media-icons.php */
114	do_action( 'jetpack_bump_stats_extras', 'html_to_shortcode', googleapps_service_name( $domain, $match[3] ) );
115
116	$content = str_replace( $match[0], '[googleapps domain="' . $domain . '" dir="' . $match[3] . '" query="' . esc_attr( $match[4] ) . '"' . $attributes . ' /]', $content );
117	}
118	}
119
120	return $content;
121	}
122
123	/**
124	* Parse shortcode attributes and output a Google Docs embed.
125	*
126	* @since 4.5.0
127	*
128	* @param array $atts
129	*
130	* @return string
131	*/
132	function googleapps_shortcode( $atts ) {
133	global $content_width;
134
135	$attr = shortcode_atts(
136	array(
137	'width' => '100%',
138	'height' => '560',
139	'domain' => 'docs',
140	'dir' => 'document',
141	'query' => '',
142	'src' => '',
143	),
144	$atts
145	);
146
147	if ( isset( $content_width ) && is_numeric( $attr['width'] ) && $attr['width'] > $content_width ) {
148	$attr['width'] = $content_width;
149	}
150
151	if ( isset( $content_width ) && '560' === $attr['height'] ) {
152	$attr['height'] = $content_height = floor( $content_width * 3 / 4 );
153	}
154
155	if ( isset( $atts[0] ) && $atts[0] ) {
156	$attr['src'] = $atts[0];
157	}
158
159	if ( $attr['src'] && preg_match( '!https?://(docs\|drive\|spreadsheets\d\|calendar\|www)\.google\.com/([-\w\./]+)\?([^"]+)!', $attr['src'], $matches ) ) {
160	$attr['domain'] = $matches[1];
161	$attr['dir'] = $matches[2];
162	parse_str( htmlspecialchars_decode( $matches[3] ), $query_ar );
163	$query_ar['chrome'] = 'false';
164	$query_ar['embedded'] = 'true';
165	$attr['query'] = http_build_query( $query_ar );
166	}
167
168	if ( ! googleapps_validate_domain_and_dir( $attr['domain'], $attr['dir'] ) ) {
169	return '<!-- Unsupported URL -->';
170	}
171
172	$attr['query'] = $attr['dir'] . '?' . $attr['query'];
173
174	/** This action is documented in modules/widgets/social-media-icons.php */
175	do_action( 'jetpack_bump_stats_extras', 'embeds', googleapps_service_name( $attr['domain'], $attr['dir'] ) );
176
177	return sprintf(
178	'<iframe src="%s" frameborder="0" width="%s" height="%s" marginheight="0" marginwidth="0" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe>',
179	esc_url( 'https://' . $attr['domain'] . '.google.com/' . $attr['query'] ),
180	esc_attr( $attr['width'] ),
181	esc_attr( $attr['height'] )
182	);
183	}
184
185	/**
186	* Check that the domain blogs to a Google Apps domain.
187	*
188	* @since 4.5.0
189	*
190	* @param string $domain
191	* @param string $dir
192	*
193	* @return bool
194	*/
195	function googleapps_validate_domain_and_dir( $domain, $dir ) {
196	if ( ! in_array( $domain, array( 'docs', 'drive', 'www', 'spreadsheets', 'calendar' ) ) ) {
197	return false;
198	}
199
200	// Calendars
201	if ( ( 'www' === $domain \|\| 'calendar' === $domain ) && 'calendar/' !== substr( $dir, 0, 9 ) ) {
202	return false;
203	}
204
205	// Docs
206	if ( in_array( $domain, array( 'docs', 'drive' ) ) && ! preg_match( '![-\.\w/](presentation/embed\|presentation/d/(.)\|present/embed\|document/pub\|spreadsheets/d/(.)\|document/d/(e/)?[\w-]+/pub\|file/d/[\w-]+/preview\|viewer\|forms/d/(.)/viewform\|spreadsheet/\w+)$!', $dir ) ) {
207	return false;
208	}
209
210	// Spreadsheets
211	if ( 'spreadsheets' == $domain && ! preg_match( '!^([-\.\w/]+/pub\|[-\.\w/]*embeddedform)$!', $dir ) ) {
212	return false;
213	}
214
215	return true;
216	}
217
218	/**
219	* Get the name of the service we'll be embedding.
220	*
221	* @since 4.5.0
222	*
223	* @param string $domain
224	* @param string $dir
225	*
226	* @return string
227	*/
228	function googleapps_service_name( $domain, $dir ) {
229	switch ( $domain ) {
230	case 'drive':
231	case 'docs':
232	$service_name = ( 'present/embed' == $dir ) ? 'googledocs_presentation' : 'googledocs_document';
233	break;
234	case 'spreadsheets':
235	$service_name = ( 'embeddedform' == $dir ) ? 'googledocs_form' : 'googledocs_spreadsheet';
236	break;
237	case 'calendar':
238	default:
239	$service_name = 'google_calendar';
240	}
241
242	return $service_name;
243	}
244