jetpack / modules / sharedaddy / sharing-sources.php

sharing-sources.php in Jetpack – WP Security, Backup, Speed, & Growth 9.8.2, at modules/sharedaddy/sharing-sources.php

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1	<?php
2
3	use Automattic\Jetpack\Device_Detection\User_Agent_Info;
4
5	abstract class Sharing_Source {
6	public $button_style;
7	public $smart;
8	protected $open_link_in_new;
9	protected $id;
10
11	public function __construct( $id, array $settings ) {
12	$this->id = $id;
13	/**
14	* Filter the way sharing links open.
15	*
16	* By default, sharing links open in a new window.
17	*
18	* @module sharedaddy
19	*
20	* @since 3.4.0
21	*
22	* @param bool true Should Sharing links open in a new window. Default to true.
23	*/
24	$this->open_link_in_new = apply_filters( 'jetpack_open_sharing_in_new_window', true );
25
26	if ( isset( $settings['button_style'] ) ) {
27	$this->button_style = $settings['button_style'];
28	}
29
30	if ( isset( $settings['smart'] ) ) {
31	$this->smart = $settings['smart'];
32	}
33	}
34
35	public function is_deprecated() {
36	return false;
37	}
38
39	public function http() {
40	return is_ssl() ? 'https' : 'http';
41	}
42
43	public function get_id() {
44	return $this->id;
45	}
46
47	public function get_class() {
48	return $this->id;
49	}
50
51	public function get_share_url( $post_id ) {
52	/**
53	* Filter the sharing permalink.
54	*
55	* @module sharedaddy
56	*
57	* @since 1.2.0
58	*
59	* @param string get_permalink( $post_id ) Post Permalink.
60	* @param int $post_id Post ID.
61	* @param int $this->id Sharing ID.
62	*/
63	return apply_filters( 'sharing_permalink', get_permalink( $post_id ), $post_id, $this->id );
64	}
65
66	public function get_share_title( $post_id ) {
67	$post = get_post( $post_id );
68	/**
69	* Filter the sharing title.
70	*
71	* @module sharedaddy
72	*
73	* @since 2.8.0
74	*
75	* @param string $post->post_title Post Title.
76	* @param int $post_id Post ID.
77	* @param int $this->id Sharing ID.
78	*/
79	$title = apply_filters( 'sharing_title', $post->post_title, $post_id, $this->id );
80
81	return html_entity_decode( wp_kses( $title, null ) );
82	}
83
84	public function has_custom_button_style() {
85	return false;
86	}
87
88	public function get_link( $url, $text, $title, $query = '', $id = false ) {
89	$args = func_get_args();
90	$klasses = array( 'share-' . $this->get_class(), 'sd-button' );
91
92	if ( 'icon' == $this->button_style \|\| 'icon-text' == $this->button_style ) {
93	$klasses[] = 'share-icon';
94	}
95
96	if ( 'icon' == $this->button_style ) {
97	$text = $title;
98	$klasses[] = 'no-text';
99
100	if ( true == $this->open_link_in_new ) {
101	$text .= __( ' (Opens in new window)', 'jetpack' );
102	}
103	}
104
105	/**
106	* Filter the sharing display ID.
107	*
108	* @module sharedaddy
109	*
110	* @since 3.4.0
111	*
112	* @param int\|false $id Sharing ID.
113	* @param object $this Sharing service properties.
114	* @param array $args Array of sharing service options.
115	*/
116	$id = apply_filters( 'jetpack_sharing_display_id', $id, $this, $args );
117	/**
118	* Filter the sharing display link.
119	*
120	* @module sharedaddy
121	*
122	* @since 2.8.0
123	*
124	* @param string $url Post URL.
125	* @param object $this Sharing service properties.
126	* @param int\|false $id Sharing ID.
127	* @param array $args Array of sharing service options.
128	*/
129	$url = apply_filters( 'sharing_display_link', $url, $this, $id, $args ); // backwards compatibility
130	/**
131	* Filter the sharing display link.
132	*
133	* @module sharedaddy
134	*
135	* @since 2.8.0
136	*
137	* @param string $url Post URL.
138	* @param object $this Sharing service properties.
139	* @param int\|false $id Sharing ID.
140	* @param array $args Array of sharing service options.
141	*/
142	$url = apply_filters( 'jetpack_sharing_display_link', $url, $this, $id, $args );
143	/**
144	* Filter the sharing display query.
145	*
146	* @module sharedaddy
147	*
148	* @since 2.8.0
149	*
150	* @param string $query Sharing service URL parameter.
151	* @param object $this Sharing service properties.
152	* @param int\|false $id Sharing ID.
153	* @param array $args Array of sharing service options.
154	*/
155	$query = apply_filters( 'jetpack_sharing_display_query', $query, $this, $id, $args );
156
157	if ( ! empty( $query ) ) {
158	if ( false === stripos( $url, '?' ) ) {
159	$url .= '?' . $query;
160	} else {
161	$url .= '&' . $query;
162	}
163	}
164
165	if ( 'text' == $this->button_style ) {
166	$klasses[] = 'no-icon';
167	}
168
169	/**
170	* Filter the sharing display classes.
171	*
172	* @module sharedaddy
173	*
174	* @since 3.4.0
175	*
176	* @param array $klasses Sharing service classes.
177	* @param object $this Sharing service properties.
178	* @param int\|false $id Sharing ID.
179	* @param array $args Array of sharing service options.
180	*/
181	$klasses = apply_filters( 'jetpack_sharing_display_classes', $klasses, $this, $id, $args );
182	/**
183	* Filter the sharing display title.
184	*
185	* @module sharedaddy
186	*
187	* @since 3.4.0
188	*
189	* @param string $title Sharing service title.
190	* @param object $this Sharing service properties.
191	* @param int\|false $id Sharing ID.
192	* @param array $args Array of sharing service options.
193	*/
194	$title = apply_filters( 'jetpack_sharing_display_title', $title, $this, $id, $args );
195	/**
196	* Filter the sharing display text.
197	*
198	* @module sharedaddy
199	*
200	* @since 3.4.0
201	*
202	* @param string $text Sharing service text.
203	* @param object $this Sharing service properties.
204	* @param int\|false $id Sharing ID.
205	* @param array $args Array of sharing service options.
206	*/
207	$text = apply_filters( 'jetpack_sharing_display_text', $text, $this, $id, $args );
208
209	return sprintf(
210	'<a rel="nofollow%s" data-shared="%s" class="%s" href="%s"%s title="%s"><span%s>%s</span></a>',
211	( true == $this->open_link_in_new ) ? ' noopener noreferrer' : '',
212	( $id ? esc_attr( $id ) : '' ),
213	implode( ' ', $klasses ),
214	$url,
215	( true == $this->open_link_in_new ) ? ' target="_blank"' : '',
216	$title,
217	( 'icon' == $this->button_style ) ? '></span><span class="sharing-screen-reader-text"' : '',
218	$text
219	);
220	}
221
222	/**
223	* Get an unfiltered post permalink to use when generating a sharing URL with get_link.
224	* Use instead of get_share_url for non-official styles as get_permalink ensures that process_request
225	* will be executed more reliably, in the case that the filtered URL uses a service that strips query parameters.
226	*
227	* @since 3.7.0
228	* @param int $post_id Post ID.
229	* @uses get_permalink
230	* @return string get_permalink( $post_id ) Post permalink.
231	*/
232	public function get_process_request_url( $post_id ) {
233	return get_permalink( $post_id );
234	}
235
236	abstract public function get_name();
237	abstract public function get_display( $post );
238
239	public function display_header() {
240	}
241
242	public function display_footer() {
243	}
244
245	public function has_advanced_options() {
246	return false;
247	}
248
249	/**
250	* Get the AMP specific markup for a sharing button.
251	*
252	* @param \WP_Post $post The current post being viewed.
253	*/
254	public function get_amp_display( $post ) {
255	// Only display markup if we're on a post.
256	if ( empty( $post ) ) {
257	return false;
258	}
259
260	return $this->build_amp_markup();
261	}
262
263	/**
264	* Generates and returns the markup for an AMP sharing button.
265	*
266	* @param array $attrs Custom attributes for rendering the social icon.
267	*/
268	protected function build_amp_markup( $attrs = array() ) {
269
270	$title = sprintf(
271	/* translators: placeholder is a service name, such as "Twitter" or "Facebook". */
272	__( 'Click to share on %s', 'jetpack' ),
273	$this->get_name()
274	);
275
276	$attrs = array_merge(
277	array(
278	'type' => $this->get_id(),
279	'height' => '32px',
280	'width' => '32px',
281	'aria-label' => $title,
282	'title' => $title,
283	),
284	$attrs
285	);
286	$sharing_link = '<amp-social-share';
287	foreach ( $attrs as $key => $value ) {
288	$sharing_link .= sprintf( ' %s="%s"', sanitize_key( $key ), esc_attr( $value ) );
289	}
290	$sharing_link .= '></amp-social-share>';
291	return $sharing_link;
292	}
293
294	public function display_preview( $echo = true, $force_smart = false, $button_style = null ) {
295	$text = ' ';
296	$button_style = ( ! empty( $button_style ) ) ? $button_style : $this->button_style;
297	if ( ! $this->smart && ! $force_smart ) {
298	if ( $button_style != 'icon' ) {
299	$text = $this->get_name();
300	}
301	}
302
303	$klasses = array( 'share-' . $this->get_class(), 'sd-button' );
304
305	if ( $button_style == 'icon' \|\| $button_style == 'icon-text' ) {
306	$klasses[] = 'share-icon';
307	}
308
309	if ( $button_style == 'icon' ) {
310	$klasses[] = 'no-text';
311	}
312
313	if ( $button_style == 'text' ) {
314	$klasses[] = 'no-icon';
315	}
316
317	$is_deprecated = $this->is_deprecated();
318
319	$link = sprintf(
320	'<a rel="nofollow" class="%s" href="javascript:void(0)" title="%s"><span>%s</span></a>',
321	implode( ' ', $klasses ),
322	esc_attr(
323	$is_deprecated
324	/* translators: %1$s is the name of a deprecated Sharing Service like "Google+" */
325	? sprintf( __( 'The %1$s service has shut down. This sharing button is not displayed to your visitors and should be removed.', 'jetpack' ), $this->get_name() )
326	: $this->get_name()
327	),
328	esc_html(
329	$is_deprecated
330	/* translators: %1$s is the name of a deprecated Sharing Service like "Google+" */
331	? sprintf( __( '%1$s has shut down', 'jetpack' ), $this->get_name() )
332	: $text
333	)
334	);
335
336	$smart = ( $this->smart \|\| $force_smart ) ? 'on' : 'off';
337	$return = "<div class='option option-smart-$smart'>$link</div>";
338	if ( $echo ) {
339	echo $return;
340	}
341
342	return $return;
343	}
344
345	public function get_total( $post = false ) {
346	global $wpdb, $blog_id;
347
348	$name = strtolower( $this->get_id() );
349
350	if ( $post == false ) {
351	// get total number of shares for service
352	return (int) $wpdb->get_var( $wpdb->prepare( 'SELECT SUM( count ) FROM sharing_stats WHERE blog_id = %d AND share_service = %s', $blog_id, $name ) );
353	}
354
355	// get total shares for a post
356	return (int) $wpdb->get_var( $wpdb->prepare( 'SELECT count FROM sharing_stats WHERE blog_id = %d AND post_id = %d AND share_service = %s', $blog_id, $post->ID, $name ) );
357	}
358
359	public function get_posts_total() {
360	global $wpdb, $blog_id;
361
362	$totals = array();
363	$name = strtolower( $this->get_id() );
364
365	$my_data = $wpdb->get_results( $wpdb->prepare( 'SELECT post_id as id, SUM( count ) as total FROM sharing_stats WHERE blog_id = %d AND share_service = %s GROUP BY post_id ORDER BY count DESC ', $blog_id, $name ) );
366
367	if ( ! empty( $my_data ) ) {
368	foreach ( $my_data as $row ) {
369	$totals[] = new Sharing_Post_Total( $row->id, $row->total );
370	}
371	}
372
373	usort( $totals, array( 'Sharing_Post_Total', 'cmp' ) );
374
375	return $totals;
376	}
377
378	public function process_request( $post, array $post_data ) {
379	/**
380	* Fires when a post is shared via one of the sharing buttons.
381	*
382	* @module sharedaddy
383	*
384	* @since 1.1.0
385	*
386	* @param array $args Aray of information about the sharing service.
387	*/
388	do_action( 'sharing_bump_stats', array( 'service' => $this, 'post' => $post ) );
389	}
390
391	public function js_dialog( $name, $params = array() ) {
392	if ( true !== $this->open_link_in_new ) {
393	return;
394	}
395
396	$defaults = array(
397	'menubar' => 1,
398	'resizable' => 1,
399	'width' => 600,
400	'height' => 400,
401	);
402	$params = array_merge( $defaults, $params );
403	$opts = array();
404	foreach ( $params as $key => $val ) {
405	$opts[] = "$key=$val";
406	}
407	$opts = implode( ',', $opts );
408
409	// Add JS after sharing-js has been enqueued.
410	wp_add_inline_script( 'sharing-js',
411	"var windowOpen;
412	( function () {
413	function matches( el, sel ) {
414	return !! (
415	el.matches && el.matches( sel ) \|\|
416	el.msMatchesSelector && el.msMatchesSelector( sel )
417	);
418	}
419
420	document.body.addEventListener( 'click', function ( event ) {
421	if ( ! event.target ) {
422	return;
423	}
424
425	var el;
426	if ( matches( event.target, 'a.share-$name' ) ) {
427	el = event.target;
428	} else if ( event.target.parentNode && matches( event.target.parentNode, 'a.share-$name' ) ) {
429	el = event.target.parentNode;
430	}
431
432	if ( el ) {
433	event.preventDefault();
434
435	// If there's another sharing window open, close it.
436	if ( typeof windowOpen !== 'undefined' ) {
437	windowOpen.close();
438	}
439	windowOpen = window.open( el.getAttribute( 'href' ), 'wpcom$name', '$opts' );
440	return false;
441	}
442	} );
443	} )();"
444	);
445	}
446	}
447
448	abstract class Deprecated_Sharing_Source extends Sharing_Source {
449	public $button_style = 'text';
450	public $smart = false;
451	protected $open_link_in_new = false;
452	protected $id;
453	protected $deprecated = true;
454
455	final public function __construct( $id, array $settings ) {
456	$this->id = $id;
457
458	if ( isset( $settings['button_style'] ) ) {
459	$this->button_style = $settings['button_style'];
460	}
461	}
462
463	final public function is_deprecated() {
464	return true;
465	}
466
467	final public function get_share_url( $post_id ) {
468	return get_permalink( $post_id );
469	}
470
471	/**
472	* No AMP display for deprecated sources.
473	*
474	* @param \WP_Post $post The current post being viewed.
475	*/
476	final public function get_amp_display( $post ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
477	return false;
478	}
479
480	final public function display_preview( $echo = true, $force_smart = false, $button_style = null ) {
481	return parent::display_preview( $echo, false, $button_style );
482	}
483
484	final public function get_total( $post = false ) {
485	return 0;
486	}
487
488	final public function get_posts_total() {
489	return 0;
490	}
491
492	final public function process_request( $post, array $post_data ) {
493	parent::process_request( $post, $post_data );
494	}
495
496	final public function get_display( $post ) {
497	if ( current_user_can( 'manage_options' ) ) {
498	return $this->display_deprecated( $post );
499	}
500
501	return '';
502	}
503
504	public function display_deprecated( $post ) {
505	return $this->get_link(
506	$this->get_share_url( $post->ID ),
507	/* translators: %1$s is the name of a deprecated Sharing Service like "Google+" */
508	sprintf( __( '%1$s has shut down', 'jetpack' ), $this->get_name() ),
509	/* translators: %1$s is the name of a deprecated Sharing Service like "Google+" */
510	sprintf( __( 'The %1$s service has shut down. This sharing button is not displayed to your visitors and should be removed.', 'jetpack' ), $this->get_name() )
511	);
512	}
513	}
514
515	abstract class Sharing_Advanced_Source extends Sharing_Source {
516	public function has_advanced_options() {
517	return true;
518	}
519
520	abstract public function display_options();
521	abstract public function update_options( array $data );
522	abstract public function get_options();
523	}
524
525	class Share_Email extends Sharing_Source {
526	public $shortname = 'email';
527	public $icon = '\f410';
528	public function __construct( $id, array $settings ) {
529	parent::__construct( $id, $settings );
530
531	if ( 'official' == $this->button_style ) {
532	$this->smart = true;
533	} else {
534	$this->smart = false;
535	}
536	}
537
538	public function get_name() {
539	return _x( 'Email', 'as sharing source', 'jetpack' );
540	}
541
542	// Default does nothing
543	public function process_request( $post, array $post_data ) {
544	$ajax = false;
545	if ( isset( $_SERVER['HTTP_X_REQUESTED_WITH'] ) && strtolower( $_SERVER['HTTP_X_REQUESTED_WITH'] ) == 'xmlhttprequest' ) {
546	$ajax = true;
547	}
548
549	$source_email = $target_email = $source_name = false;
550
551	if ( isset( $post_data['source_email'] ) && is_email( $post_data['source_email'] ) ) {
552	$source_email = $post_data['source_email'];
553	}
554
555	if ( isset( $post_data['target_email'] ) && is_email( $post_data['target_email'] ) ) {
556	$target_email = $post_data['target_email'];
557	}
558
559	if ( isset( $post_data['source_name'] ) && strlen( $post_data['source_name'] ) < 200 ) {
560	$source_name = $post_data['source_name'];
561	} elseif ( isset( $post_data['source_name'] ) ) {
562	$source_name = substr( $post_data['source_name'], 0, 200 );
563	} else {
564	$source_name = '';
565	}
566
567	// Test email
568	$error = 1; // Failure in data
569	if ( empty( $post_data['source_f_name'] ) && $source_email && $target_email && $source_name ) {
570	/**
571	* Allow plugins to stop the email sharing button from running the shared message through Akismet.
572	*
573	* @module sharedaddy
574	*
575	* @since 1.1.0
576	*
577	* @param bool true Should we check if the message isn't spam?
578	* @param object $post Post information.
579	* @param array $post_data Information about the shared message.
580	*/
581	if ( apply_filters( 'sharing_email_check', true, $post, $post_data ) ) {
582	$data = array(
583	'post' => $post,
584	'source' => $source_email,
585	'target' => $target_email,
586	'name' => $source_name,
587	'sharing_source' => $this,
588	);
589	// todo: implement an error message when email doesn't get sent.
590	/**
591	* Filter whether an email can be sent from the Email sharing button.
592	*
593	* @module sharedaddy
594	*
595	* @since 1.1.0
596	*
597	* @param array $data Array of information about the shared message.
598	*/
599	if ( ( $data = apply_filters( 'sharing_email_can_send', $data ) ) !== false ) {
600	// Record stats
601	parent::process_request( $data['post'], $post_data );
602
603	/**
604	* Fires when an email is sent via the Email sharing button.
605	*
606	* @module sharedaddy
607	*
608	* @since 1.1.0
609	*
610	* @param array $data Array of information about the shared message.
611	*/
612	do_action( 'sharing_email_send_post', $data );
613	}
614
615	// Return a positive regardless of whether the user is subscribed or not
616	if ( $ajax ) {
617	?>
618	<div class="response">
619	<div class="response-title"><?php _e( 'This post has been shared!', 'jetpack' ); ?></div>
620	<div class="response-sub"><?php printf( __( 'You have shared this post with %s', 'jetpack' ), esc_html( $target_email ) ); ?></div>
621	<div class="response-close"><a href="#" class="sharing_cancel"><?php _e( 'Close', 'jetpack' ); ?></a></div>
622	</div>
623	<?php
624	} else {
625	wp_safe_redirect( get_permalink( $post->ID ) . '?shared=email' );
626	}
627
628	die();
629	} else {
630	$error = 2; // Email check failed
631	}
632	}
633
634	if ( $ajax ) {
635	echo $error;
636	} else {
637	wp_safe_redirect( get_permalink( $post->ID ) . '?shared=email&msg=fail' );
638	}
639
640	die();
641	}
642
643	public function get_display( $post ) {
644	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Email', 'share to', 'jetpack' ), __( 'Click to email this to a friend', 'jetpack' ), 'share=email' );
645	}
646
647	/**
648	* No AMP display for email.
649	*
650	* @param \WP_Post $post The current post being viewed.
651	*/
652	public function get_amp_display( $post ) { // phpcs:ignore
653	return false;
654	}
655
656	/**
657	* Outputs the hidden email dialog
658	*/
659	public function display_footer() {
660	global $current_user;
661
662	$visible = $status = false;
663	?>
664	<div id="sharing_email" style="display: none;">
665	<form action="<?php echo esc_url( $_SERVER['REQUEST_URI'] ); ?>" method="post">
666	<label for="target_email"><?php _e( 'Send to Email Address', 'jetpack' ) ?></label>
667	<input type="email" name="target_email" id="target_email" value="" />
668
669	<?php if ( is_user_logged_in() ) : ?>
670	<input type="hidden" name="source_name" value="<?php echo esc_attr( $current_user->display_name ); ?>" />
671	<input type="hidden" name="source_email" value="<?php echo esc_attr( $current_user->user_email ); ?>" />
672	<?php else : ?>
673
674	<label for="source_name"><?php _e( 'Your Name', 'jetpack' ) ?></label>
675	<input type="text" name="source_name" id="source_name" value="" />
676
677	<label for="source_email"><?php _e( 'Your Email Address', 'jetpack' ) ?></label>
678	<input type="email" name="source_email" id="source_email" value="" />
679
680	<?php endif; ?>
681	<input type="text" id="jetpack-source_f_name" name="source_f_name" class="input" value="" size="25" autocomplete="off" title="<?php esc_attr_e( 'This field is for validation and should not be changed', 'jetpack' ); ?>" />
682	<?php
683	/**
684	* Fires when the Email sharing dialog is loaded.
685	*
686	* @module sharedaddy
687	*
688	* @since 1.1.0
689	*
690	* @param string jetpack Eail sharing source.
691	*/
692	do_action( 'sharing_email_dialog', 'jetpack' );
693	?>
694
695	<img style="float: right; display: none" class="loading" src="<?php
696	/** This filter is documented in modules/stats.php */
697	echo apply_filters( 'jetpack_static_url', plugin_dir_url( __FILE__ ) . 'images/loading.gif' ); ?>" alt="loading" width="16" height="16" />
698	<input type="submit" value="<?php esc_attr_e( 'Send Email', 'jetpack' ); ?>" class="sharing_send" />
699	<a rel="nofollow" href="#cancel" class="sharing_cancel" role="button"><?php _e( 'Cancel', 'jetpack' ); ?></a>
700
701	<div class="errors errors-1" style="display: none;">
702	<?php _e( 'Post was not sent - check your email addresses!', 'jetpack' ); ?>
703	</div>
704
705	<div class="errors errors-2" style="display: none;">
706	<?php _e( 'Email check failed, please try again', 'jetpack' ); ?>
707	</div>
708
709	<div class="errors errors-3" style="display: none;">
710	<?php _e( 'Sorry, your blog cannot share posts by email.', 'jetpack' ); ?>
711	</div>
712	</form>
713	</div>
714	<?php
715	}
716	}
717
718	class Share_Twitter extends Sharing_Source {
719	public $shortname = 'twitter';
720	public $icon = '\f202';
721	// 'https://dev.twitter.com/rest/reference/get/help/configuration' ( 2015/02/06 ) short_url_length is 22, short_url_length_https is 23
722	public $short_url_length = 24;
723
724	public function __construct( $id, array $settings ) {
725	parent::__construct( $id, $settings );
726
727	if ( 'official' == $this->button_style ) {
728	$this->smart = true;
729	} else {
730	$this->smart = false;
731	}
732	}
733
734	public function get_name() {
735	return __( 'Twitter', 'jetpack' );
736	}
737
738	/**
739	* Determine the Twitter 'via' value for a post.
740	*
741	* @param WP_Post\|int $post Post object or post ID.
742	* @return string Twitter handle without the preceding @.
743	**/
744	public static function sharing_twitter_via( $post ) {
745	$post = get_post( $post );
746	/**
747	* Allow third-party plugins to customize the Twitter username used as "twitter:site" Twitter Card Meta Tag.
748	*
749	* @module sharedaddy
750	*
751	* @since 3.0.0
752	*
753	* @param string $string Twitter Username.
754	* @param array $args Array of Open Graph Meta Tags and Twitter Cards tags.
755	*/
756	$twitter_site_tag_value = apply_filters(
757	'jetpack_twitter_cards_site_tag',
758	'',
759	/** This action is documented in modules/sharedaddy/sharing-sources.php */
760	array( 'twitter:creator' => apply_filters( 'jetpack_sharing_twitter_via', '', $post->ID ) )
761	);
762
763	/*
764	* Hack to remove the unwanted behavior of adding 'via @jetpack' which
765	* was introduced with the adding of the Twitter cards.
766	* This should be a temporary solution until a better method is setup.
767	*/
768	if ( 'jetpack' == $twitter_site_tag_value ) {
769	$twitter_site_tag_value = '';
770	}
771
772	/**
773	* Filters the Twitter username used as "via" in the Twitter sharing button.
774	*
775	* @module sharedaddy
776	*
777	* @since 1.7.0
778	*
779	* @param string $twitter_site_tag_value Twitter Username.
780	* @param int $post->ID Post ID.
781	*/
782	$twitter_site_tag_value = apply_filters( 'jetpack_sharing_twitter_via', $twitter_site_tag_value, $post->ID );
783
784	// Strip out anything other than a letter, number, or underscore.
785	// This will prevent the inadvertent inclusion of an extra @, as well as normalizing the handle.
786	return preg_replace( '/[^\da-z_]+/i', '', $twitter_site_tag_value );
787	}
788
789	/**
790	* Determine the 'related' Twitter accounts for a post.
791	*
792	* @param WP_Post\|int $post Post object or post ID.
793	* @return string Comma-separated list of Twitter handles.
794	**/
795	public static function get_related_accounts( $post ) {
796	$post = get_post( $post );
797	/**
798	* Filter the list of related Twitter accounts added to the Twitter sharing button.
799	*
800	* @module sharedaddy
801	*
802	* @since 1.7.0
803	*
804	* @param array $args Array of Twitter usernames. Format is 'username' => 'Optional description'
805	* @param int $post->ID Post ID.
806	*/
807	$related_accounts = apply_filters( 'jetpack_sharing_twitter_related', array(), $post->ID );
808
809	// Example related string: account1,account2:Account 2 description,account3
810	$related = array();
811
812	foreach ( $related_accounts as $related_account_username => $related_account_description ) {
813	// Join the description onto the end of the username
814	if ( $related_account_description ) {
815	$related_account_username .= ':' . $related_account_description;
816	}
817
818	$related[] = $related_account_username;
819	}
820
821	return implode( ',', $related );
822	}
823
824	public function get_display( $post ) {
825	$via = $this->sharing_twitter_via( $post );
826
827	if ( $via ) {
828	$via = 'data-via="' . esc_attr( $via ) . '"';
829	} else {
830	$via = '';
831	}
832
833	$related = $this->get_related_accounts( $post );
834	if ( ! empty( $related ) && $related !== $via ) {
835	$related = 'data-related="' . esc_attr( $related ) . '"';
836	} else {
837	$related = '';
838	}
839
840	if ( $this->smart ) {
841	$share_url = $this->get_share_url( $post->ID );
842	$post_title = $this->get_share_title( $post->ID );
843	return sprintf(
844	'<a href="https://twitter.com/share" class="twitter-share-button" data-url="%1$s" data-text="%2$s" %3$s %4$s>Tweet</a>',
845	esc_url( $share_url ),
846	esc_attr( $post_title ),
847	$via,
848	$related
849	);
850	} else {
851	if (
852	/**
853	* Allow plugins to disable sharing counts for specific sharing services.
854	*
855	* @module sharedaddy
856	*
857	* @since 3.0.0
858	*
859	* @param bool true Should sharing counts be enabled for this specific service. Default to true.
860	* @param int $post->ID Post ID.
861	* @param string $str Sharing service name.
862	*/
863	apply_filters( 'jetpack_register_post_for_share_counts', true, $post->ID, 'twitter' )
864	) {
865	sharing_register_post_for_share_counts( $post->ID );
866	}
867	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Twitter', 'share to', 'jetpack' ), __( 'Click to share on Twitter', 'jetpack' ), 'share=twitter', 'sharing-twitter-' . $post->ID );
868	}
869	}
870
871	public function process_request( $post, array $post_data ) {
872	$post_title = $this->get_share_title( $post->ID );
873	$post_link = $this->get_share_url( $post->ID );
874
875	if ( function_exists( 'mb_stripos' ) ) {
876	$strlen = 'mb_strlen';
877	$substr = 'mb_substr';
878	} else {
879	$strlen = 'strlen';
880	$substr = 'substr';
881	}
882
883	$via = $this->sharing_twitter_via( $post );
884	$related = $this->get_related_accounts( $post );
885	if ( $via ) {
886	$sig = " via @$via";
887	if ( $related === $via ) {
888	$related = false;
889	}
890	} else {
891	$via = false;
892	$sig = '';
893	}
894
895	$suffix_length = $this->short_url_length + $strlen( $sig );
896	// $sig is handled by twitter in their 'via' argument.
897	// $post_link is handled by twitter in their 'url' argument.
898	if ( 280 < $strlen( $post_title ) + $suffix_length ) {
899	// The -1 is for "\xE2\x80\xA6", a UTF-8 ellipsis.
900	$text = $substr( $post_title, 0, 280 - $suffix_length - 1 ) . "\xE2\x80\xA6";
901	} else {
902	$text = $post_title;
903	}
904
905	// Record stats
906	parent::process_request( $post, $post_data );
907
908	$url = $post_link;
909	$twitter_url = add_query_arg(
910	rawurlencode_deep( array_filter( compact( 'via', 'related', 'text', 'url' ) ) ),
911	'https://twitter.com/intent/tweet'
912	);
913
914	// Redirect to Twitter
915	wp_redirect( $twitter_url );
916	die();
917	}
918
919	public function has_custom_button_style() {
920	return $this->smart;
921	}
922
923	public function display_footer() {
924	if ( $this->smart ) {
925	?>
926	<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
927	<?php
928	} else {
929	$this->js_dialog( $this->shortname, array( 'height' => 350 ) );
930	}
931	}
932	}
933
934
935	class Share_Reddit extends Sharing_Source {
936	public $shortname = 'reddit';
937	public $icon = '\f222';
938	public function __construct( $id, array $settings ) {
939	parent::__construct( $id, $settings );
940
941	if ( 'official' == $this->button_style ) {
942	$this->smart = true;
943	} else {
944	$this->smart = false;
945	}
946	}
947
948	public function get_name() {
949	return __( 'Reddit', 'jetpack' );
950	}
951
952	public function get_display( $post ) {
953	if ( $this->smart ) {
954	return '<div class="reddit_button"><iframe src="' . $this->http() . '://www.reddit.com/static/button/button1.html?newwindow=true&width=120&url=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&title=' . rawurlencode( $this->get_share_title( $post->ID ) ) . '" height="22" width="120" scrolling="no" frameborder="0"></iframe></div>';
955	} else {
956	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Reddit', 'share to', 'jetpack' ), __( 'Click to share on Reddit', 'jetpack' ), 'share=reddit' );
957	}
958	}
959
960	/**
961	* AMP display for Reddit.
962	*
963	* @param \WP_Post $post The current post being viewed.
964	*/
965	public function get_amp_display( $post ) {
966	$attrs = array(
967	'data-share-endpoint' => esc_url_raw( 'https://reddit.com/submit?url=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&title=' . rawurlencode( $this->get_share_title( $post->ID ) ) ),
968	);
969
970	return $this->build_amp_markup( $attrs );
971	}
972
973	public function process_request( $post, array $post_data ) {
974	$reddit_url = $this->http() . '://reddit.com/submit?url=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&title=' . rawurlencode( $this->get_share_title( $post->ID ) );
975
976	// Record stats
977	parent::process_request( $post, $post_data );
978
979	// Redirect to Reddit
980	wp_redirect( $reddit_url );
981	die();
982	}
983	}
984
985	class Share_LinkedIn extends Sharing_Source {
986	public $shortname = 'linkedin';
987	public $icon = '\f207';
988	public function __construct( $id, array $settings ) {
989	parent::__construct( $id, $settings );
990
991	if ( 'official' == $this->button_style ) {
992	$this->smart = true;
993	} else {
994	$this->smart = false;
995	}
996	}
997
998	public function get_name() {
999	return __( 'LinkedIn', 'jetpack' );
1000	}
1001
1002	public function has_custom_button_style() {
1003	return $this->smart;
1004	}
1005
1006	public function get_display( $post ) {
1007	$display = '';
1008
1009	if ( $this->smart ) {
1010	$share_url = $this->get_share_url( $post->ID );
1011	$display .= sprintf( '<div class="linkedin_button"><script type="in/share" data-url="%s" data-counter="right"></script></div>', esc_url( $share_url ) );
1012	} else {
1013	$display = $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'LinkedIn', 'share to', 'jetpack' ), __( 'Click to share on LinkedIn', 'jetpack' ), 'share=linkedin', 'sharing-linkedin-' . $post->ID );
1014	}
1015
1016	/** This filter is already documented in modules/sharedaddy/sharing-sources.php */
1017	if ( apply_filters( 'jetpack_register_post_for_share_counts', true, $post->ID, 'linkedin' ) ) {
1018	sharing_register_post_for_share_counts( $post->ID );
1019	}
1020
1021	return $display;
1022	}
1023
1024	public function process_request( $post, array $post_data ) {
1025
1026	$post_link = $this->get_share_url( $post->ID );
1027
1028	// Using the same URL as the official button, which is not LinkedIn's documented sharing link
1029	// https://www.linkedin.com/cws/share?url={url}&token=&isFramed=false
1030	$linkedin_url = add_query_arg( array(
1031	'url' => rawurlencode( $post_link ),
1032	), 'https://www.linkedin.com/cws/share?token=&isFramed=false' );
1033
1034	// Record stats
1035	parent::process_request( $post, $post_data );
1036
1037	// Redirect to LinkedIn
1038	wp_redirect( $linkedin_url );
1039	die();
1040	}
1041
1042	public function display_footer() {
1043	if ( ! $this->smart ) {
1044	$this->js_dialog( $this->shortname, array( 'width' => 580, 'height' => 450 ) );
1045	} else {
1046	?>
1047	<script type="text/javascript">
1048	( function () {
1049	var currentScript = document.currentScript;
1050
1051	// Helper function to load an external script.
1052	function loadScript( url, cb ) {
1053	var script = document.createElement( 'script' );
1054	var prev = currentScript \|\| document.getElementsByTagName( 'script' )[ 0 ];
1055	script.setAttribute( 'async', true );
1056	script.setAttribute( 'src', url );
1057	prev.parentNode.insertBefore( script, prev );
1058	script.addEventListener( 'load', cb );
1059	}
1060
1061	function init() {
1062	loadScript( 'https://platform.linkedin.com/in.js?async=true', function () {
1063	if ( typeof IN !== 'undefined' ) {
1064	IN.init();
1065	}
1066	} );
1067	}
1068
1069	if ( document.readyState === 'loading' ) {
1070	document.addEventListener( 'DOMContentLoaded', init );
1071	} else {
1072	init();
1073	}
1074
1075	document.body.addEventListener( 'is.post-load', function() {
1076	if ( typeof IN !== 'undefined' ) {
1077	IN.parse();
1078	}
1079	} );
1080	} )();
1081	</script>
1082	<?php
1083	}
1084	}
1085	}
1086
1087	class Share_Facebook extends Sharing_Source {
1088	public $shortname = 'facebook';
1089	public $icon = '\f204';
1090	private $share_type = 'default';
1091
1092	public function __construct( $id, array $settings ) {
1093	parent::__construct( $id, $settings );
1094
1095	if ( isset( $settings['share_type'] ) ) {
1096	$this->share_type = $settings['share_type'];
1097	}
1098
1099	if ( 'official' == $this->button_style ) {
1100	$this->smart = true;
1101	} else {
1102	$this->smart = false;
1103	}
1104	}
1105
1106	public function get_name() {
1107	return __( 'Facebook', 'jetpack' );
1108	}
1109
1110	public function display_header() {
1111	}
1112
1113	function guess_locale_from_lang( $lang ) {
1114	if ( 'en' == $lang \|\| 'en_US' == $lang \|\| ! $lang ) {
1115	return 'en_US';
1116	}
1117
1118	if ( ! class_exists( 'GP_Locales' ) ) {
1119	if ( ! defined( 'JETPACK__GLOTPRESS_LOCALES_PATH' ) \|\| ! file_exists( JETPACK__GLOTPRESS_LOCALES_PATH ) ) {
1120	return false;
1121	}
1122
1123	require JETPACK__GLOTPRESS_LOCALES_PATH;
1124	}
1125
1126	if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
1127	// WP.com: get_locale() returns 'it'
1128	$locale = GP_Locales::by_slug( $lang );
1129	} else {
1130	// Jetpack: get_locale() returns 'it_IT';
1131	$locale = GP_Locales::by_field( 'wp_locale', $lang );
1132	}
1133
1134	if ( ! $locale ) {
1135	return false;
1136	}
1137
1138	if ( empty( $locale->facebook_locale ) ) {
1139	if ( empty( $locale->wp_locale ) ) {
1140	return false;
1141	} else {
1142	// Facebook SDK is smart enough to fall back to en_US if a
1143	// locale isn't supported. Since supported Facebook locales
1144	// can fall out of sync, we'll attempt to use the known
1145	// wp_locale value and rely on said fallback.
1146	return $locale->wp_locale;
1147	}
1148	}
1149
1150	return $locale->facebook_locale;
1151	}
1152
1153	public function get_display( $post ) {
1154	if ( $this->smart ) {
1155	$share_url = $this->get_share_url( $post->ID );
1156	$fb_share_html = '<div class="fb-share-button" data-href="' . esc_attr( $share_url ) . '" data-layout="button_count"></div>';
1157	/**
1158	* Filter the output of the Facebook Sharing button.
1159	*
1160	* @module sharedaddy
1161	*
1162	* @since 3.6.0
1163	*
1164	* @param string $fb_share_html Facebook Sharing button HTML.
1165	* @param string $share_url URL of the post to share.
1166	*/
1167	return apply_filters( 'jetpack_sharing_facebook_official_button_output', $fb_share_html, $share_url );
1168	}
1169
1170	/** This filter is already documented in modules/sharedaddy/sharing-sources.php */
1171	if ( apply_filters( 'jetpack_register_post_for_share_counts', true, $post->ID, 'facebook' ) ) {
1172	sharing_register_post_for_share_counts( $post->ID );
1173	}
1174	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Facebook', 'share to', 'jetpack' ), __( 'Click to share on Facebook', 'jetpack' ), 'share=facebook', 'sharing-facebook-' . $post->ID );
1175	}
1176
1177	/**
1178	* AMP display for Facebook.
1179	*
1180	* @param \WP_Post $post The current post being viewed.
1181	*/
1182	public function get_amp_display( $post ) {
1183	$attrs = array(
1184	/** This filter is documented in modules/sharedaddy/sharing-sources.php */
1185	'data-param-app_id' => apply_filters( 'jetpack_sharing_facebook_app_id', '249643311490' ),
1186	);
1187
1188	return $this->build_amp_markup( $attrs );
1189	}
1190
1191	public function process_request( $post, array $post_data ) {
1192	$fb_url = $this->http() . '://www.facebook.com/sharer.php?u=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&t=' . rawurlencode( $this->get_share_title( $post->ID ) );
1193
1194	// Record stats
1195	parent::process_request( $post, $post_data );
1196
1197	// Redirect to Facebook
1198	wp_redirect( $fb_url );
1199	die();
1200	}
1201
1202	public function display_footer() {
1203	$this->js_dialog( $this->shortname );
1204	if ( $this->smart ) {
1205	$locale = $this->guess_locale_from_lang( get_locale() );
1206	if ( ! $locale ) {
1207	$locale = 'en_US';
1208	}
1209	/**
1210	* Filter the App ID used in the official Facebook Share button.
1211	*
1212	* @since 3.8.0
1213	*
1214	* @param int $fb_app_id Facebook App ID. Default to 249643311490 (WordPress.com's App ID).
1215	*/
1216	$fb_app_id = apply_filters( 'jetpack_sharing_facebook_app_id', '249643311490' );
1217	if ( is_numeric( $fb_app_id ) ) {
1218	$fb_app_id = '&appId=' . $fb_app_id;
1219	} else {
1220	$fb_app_id = '';
1221	}
1222	?><div id="fb-root"></div>
1223	<script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = 'https://connect.facebook.net/<?php echo $locale; ?>/sdk.js#xfbml=1<?php echo $fb_app_id; ?>&version=v2.3'; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));</script>
1224	<script>
1225	document.body.addEventListener( 'is.post-load', function() {
1226	if ( 'undefined' !== typeof FB ) {
1227	FB.XFBML.parse();
1228	}
1229	} );
1230	</script>
1231	<?php
1232	}
1233	}
1234	}
1235
1236	class Share_Print extends Sharing_Source {
1237	public $shortname = 'print';
1238	public $icon = '\f469';
1239	public function __construct( $id, array $settings ) {
1240	parent::__construct( $id, $settings );
1241
1242	if ( 'official' == $this->button_style ) {
1243	$this->smart = true;
1244	} else {
1245	$this->smart = false;
1246	}
1247	}
1248
1249	public function get_name() {
1250	return __( 'Print', 'jetpack' );
1251	}
1252
1253	public function get_display( $post ) {
1254	return $this->get_link( $this->get_process_request_url( $post->ID ) . ( ( is_single() \|\| is_page() ) ? '#print': '' ), _x( 'Print', 'share to', 'jetpack' ), __( 'Click to print', 'jetpack' ) );
1255	}
1256
1257	/**
1258	* AMP display for Print.
1259	*
1260	* @param \WP_Post $post The current post being viewed.
1261	*/
1262	public function get_amp_display( $post ) {
1263	if ( empty( $post ) ) {
1264	return false;
1265	}
1266
1267	return '<button class="amp-social-share print" on="tap:AMP.print">Print</button>';
1268	}
1269	}
1270
1271	class Share_PressThis extends Sharing_Source {
1272	public $shortname = 'pressthis';
1273	public $icon = '\f205';
1274	public function __construct( $id, array $settings ) {
1275	parent::__construct( $id, $settings );
1276
1277	if ( 'official' == $this->button_style ) {
1278	$this->smart = true;
1279	} else {
1280	$this->smart = false;
1281	}
1282	}
1283
1284	public function get_name() {
1285	return __( 'Press This', 'jetpack' );
1286	}
1287
1288	public function process_request( $post, array $post_data ) {
1289	global $current_user;
1290
1291	$primary_blog = (int) get_user_meta( $current_user->ID, 'primary_blog', true );
1292	if ( $primary_blog ) {
1293	$primary_blog_details = get_blog_details( $primary_blog );
1294	} else {
1295	$primary_blog_details = false;
1296	}
1297
1298	if ( $primary_blog_details ) {
1299	$blogs = array( $primary_blog_details );
1300	} elseif ( function_exists( 'get_active_blogs_for_user' ) ) {
1301	$blogs = get_active_blogs_for_user();
1302	if ( empty( $blogs ) ) {
1303	$blogs = get_blogs_of_user( $current_user->ID );
1304	}
1305	} else {
1306	$blogs = get_blogs_of_user( $current_user->ID );
1307	}
1308
1309	if ( empty( $blogs ) ) {
1310	wp_safe_redirect( get_permalink( $post->ID ) );
1311	die();
1312	}
1313
1314	$blog = current( $blogs );
1315
1316	$args = array(
1317	'u' => rawurlencode( $this->get_share_url( $post->ID ) ),
1318	);
1319
1320	$args[ 'url-scan-submit' ] = 'Scan';
1321	$args[ '_wpnonce' ] = wp_create_nonce( 'scan-site' );
1322
1323	$url = $blog->siteurl . '/wp-admin/press-this.php';
1324	$url = add_query_arg( $args, $url );
1325
1326	// Record stats
1327	parent::process_request( $post, $post_data );
1328
1329	// Redirect to Press This
1330	wp_redirect( $url );
1331	die();
1332	}
1333
1334	public function get_display( $post ) {
1335	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Press This', 'share to', 'jetpack' ), __( 'Click to Press This!', 'jetpack' ), 'share=press-this' );
1336	}
1337
1338	/**
1339	* No AMP display for PressThis.
1340	*
1341	* @param \WP_Post $post The current post being viewed.
1342	*/
1343	public function get_amp_display( $post ) { // phpcs:ignore
1344	return false;
1345	}
1346	}
1347
1348	class Share_Custom extends Sharing_Advanced_Source {
1349	private $name;
1350	private $icon;
1351	private $url;
1352	public $smart = true;
1353	public $shortname;
1354
1355	public function get_class() {
1356	return 'custom share-custom-' . sanitize_html_class( strtolower( $this->name ) );
1357	}
1358
1359	public function __construct( $id, array $settings ) {
1360	parent::__construct( $id, $settings );
1361
1362	$opts = $this->get_options();
1363
1364	if ( isset( $settings['name'] ) ) {
1365	$this->name = $settings['name'];
1366	$this->shortname = preg_replace( '/[^a-z0-9]*/', '', $settings['name'] );
1367	}
1368
1369	if ( isset( $settings['icon'] ) ) {
1370	$this->icon = $settings['icon'];
1371
1372	$new_icon = esc_url_raw( wp_specialchars_decode( $this->icon, ENT_QUOTES ) );
1373	$i = 0;
1374	while ( $new_icon != $this->icon ) {
1375	if ( $i > 5 ) {
1376	$this->icon = false;
1377	break;
1378	} else {
1379	$this->icon = $new_icon;
1380	$new_icon = esc_url_raw( wp_specialchars_decode( $this->icon, ENT_QUOTES ) );
1381	}
1382	$i++;
1383	}
1384	}
1385
1386	if ( isset( $settings['url'] ) ) {
1387	$this->url = $settings['url'];
1388	}
1389	}
1390
1391	public function get_name() {
1392	return $this->name;
1393	}
1394
1395	public function get_display( $post ) {
1396	$str = $this->get_link( $this->get_process_request_url( $post->ID ), esc_html( $this->name ), sprintf( __( 'Click to share on %s', 'jetpack' ), esc_attr( $this->name ) ), 'share=' . $this->id );
1397	return str_replace( '<span>', '<span style="' . esc_attr( 'background-image:url("' . addcslashes( esc_url_raw( $this->icon ), '"' ) . '");' ) . '">', $str );
1398	}
1399
1400	/**
1401	* No AMP display for custom elements.
1402	*
1403	* @param \WP_Post $post The current post being viewed.
1404	*/
1405	public function get_amp_display( $post ) { // phpcs:ignore
1406	return false;
1407	}
1408
1409	public function process_request( $post, array $post_data ) {
1410	$url = str_replace( '&', '&', $this->url );
1411	$url = str_replace( '%post_id%', rawurlencode( $post->ID ), $url );
1412	$url = str_replace( '%post_url%', rawurlencode( $this->get_share_url( $post->ID ) ), $url );
1413	$url = str_replace( '%post_full_url%', rawurlencode( get_permalink( $post->ID ) ), $url );
1414	$url = str_replace( '%post_title%', rawurlencode( $this->get_share_title( $post->ID ) ), $url );
1415	$url = str_replace( '%home_url%', rawurlencode( home_url() ), $url );
1416	$url = str_replace( '%post_slug%', rawurlencode( $post->post_name ), $url );
1417
1418	if ( strpos( $url, '%post_tags%' ) !== false ) {
1419	$tags = get_the_tags( $post->ID );
1420	$tagged = '';
1421
1422	if ( $tags ) {
1423	$tagged_raw = array();
1424	foreach ( $tags as $tag ) {
1425	$tagged_raw[] = rawurlencode( $tag->name );
1426	}
1427
1428	$tagged = implode( ',', $tagged_raw );
1429	}
1430
1431	$url = str_replace( '%post_tags%', $tagged, $url );
1432	}
1433
1434	if ( strpos( $url, '%post_excerpt%' ) !== false ) {
1435	$url_excerpt = $post->post_excerpt;
1436	if ( empty( $url_excerpt ) ) {
1437	$url_excerpt = $post->post_content;
1438	}
1439
1440	$url_excerpt = strip_tags( strip_shortcodes( $url_excerpt ) );
1441	$url_excerpt = wp_html_excerpt( $url_excerpt, 100 );
1442	$url_excerpt = rtrim( preg_replace( '/[^ .]*$/', '', $url_excerpt ) );
1443	$url = str_replace( '%post_excerpt%', rawurlencode( $url_excerpt ), $url );
1444	}
1445
1446	// Record stats
1447	parent::process_request( $post, $post_data );
1448
1449	// Redirect
1450	wp_redirect( $url );
1451	die();
1452	}
1453
1454	public function display_options() {
1455	?>
1456	<div class="input">
1457	<table class="form-table">
1458	<tbody>
1459	<tr>
1460	<th scope="row"><?php _e( 'Label', 'jetpack' ); ?></th>
1461	<td><input type="text" name="name" value="<?php echo esc_attr( $this->name ); ?>" /></td>
1462	</tr>
1463
1464	<tr>
1465	<th scope="row"><?php _e( 'URL', 'jetpack' ); ?></th>
1466	<td><input type="text" name="url" value="<?php echo esc_attr( $this->url ); ?>" /></td>
1467	</tr>
1468
1469	<tr>
1470	<th scope="row"><?php _e( 'Icon', 'jetpack' ); ?></th>
1471	<td><input type="text" name="icon" value="<?php echo esc_attr( $this->icon ); ?>" /></td>
1472	</tr>
1473
1474	<tr>
1475	<th scope="row"></th>
1476	<td>
1477	<input class="button-secondary" type="submit" value="<?php esc_attr_e( 'Save', 'jetpack' ); ?>" />
1478	<a href="#" class="remove"><small><?php _e( 'Remove Service', 'jetpack' ); ?></small></a>
1479	</td>
1480	</tr>
1481	</tbody>
1482	</table>
1483	</div>
1484	<?php
1485	}
1486
1487	public function update_options( array $data ) {
1488	$name = trim( wp_html_excerpt( wp_kses( stripslashes( $data['name'] ), array() ), 30 ) );
1489	$url = trim( esc_url_raw( $data['url'] ) );
1490	$icon = trim( esc_url_raw( $data['icon'] ) );
1491
1492	if ( $name ) {
1493	$this->name = $name;
1494	}
1495
1496	if ( $url ) {
1497	$this->url = $url;
1498	}
1499
1500	if ( $icon ) {
1501	$this->icon = $icon;
1502	}
1503	}
1504
1505	public function get_options() {
1506	return array(
1507	'name' => $this->name,
1508	'icon' => $this->icon,
1509	'url' => $this->url,
1510	);
1511	}
1512
1513	public function display_preview( $echo = true, $force_smart = false, $button_style = null ) {
1514	$opts = $this->get_options();
1515
1516	$text = ' ';
1517	if ( ! $this->smart ) {
1518	if ( $this->button_style != 'icon' ) {
1519	$text = $this->get_name();
1520	}
1521	}
1522
1523	$klasses = array( 'share-' . $this->shortname );
1524
1525	if ( $this->button_style == 'icon' \|\| $this->button_style == 'icon-text' ) {
1526	$klasses[] = 'share-icon';
1527	}
1528
1529	if ( $this->button_style == 'icon' ) {
1530	$text = '';
1531	$klasses[] = 'no-text';
1532	}
1533
1534	if ( $this->button_style == 'text' ) {
1535	$klasses[] = 'no-icon';
1536	}
1537
1538	$link = sprintf(
1539	'<a rel="nofollow" class="%s" href="javascript:void(0)" title="%s"><span style="background-image:url("%s") !important;background-position:left center;background-repeat:no-repeat;">%s</span></a>',
1540	implode( ' ', $klasses ),
1541	$this->get_name(),
1542	addcslashes( esc_url_raw( $opts['icon'] ), '"' ),
1543	$text
1544	);
1545	?>
1546	<div class="option option-smart-off">
1547	<?php echo $link ; ?>
1548	</div><?php
1549	}
1550	}
1551
1552	class Share_Tumblr extends Sharing_Source {
1553	public $shortname = 'tumblr';
1554	public $icon = '\f214';
1555	public function __construct( $id, array $settings ) {
1556	parent::__construct( $id, $settings );
1557	if ( 'official' == $this->button_style ) {
1558	$this->smart = true;
1559	} else {
1560	$this->smart = false;
1561	}
1562	}
1563
1564	public function get_name() {
1565	return __( 'Tumblr', 'jetpack' );
1566	}
1567
1568	public function get_display( $post ) {
1569	if ( $this->smart ) {
1570	$target = '';
1571	if ( true == $this->open_link_in_new ) {
1572	$target = '_blank';
1573	}
1574
1575	/**
1576	* If we are looking at a single post, let Tumblr figure out the post type (text, photo, link, quote, chat, or video)
1577	* based on the content available on the page.
1578	* If we are not looking at a single post, content from other posts can appear on the page and Tumblr will pick that up.
1579	* In this case, we want Tumblr to focus on our current post, so we will limit the post type to link, where we can give Tumblr a link to our post.
1580	*/
1581	if ( ! is_single() ) {
1582	$posttype = 'data-posttype="link"';
1583	} else {
1584	$posttype = '';
1585	}
1586
1587	// Documentation: https://www.tumblr.com/docs/en/share_button
1588	return sprintf(
1589	'<a class="tumblr-share-button" target="%1$s" href="%2$s" data-title="%3$s" data-content="%4$s" title="%5$s"%6$s>%5$s</a>',
1590	$target,
1591	'https://www.tumblr.com/share',
1592	$this->get_share_title( $post->ID ),
1593	$this->get_share_url( $post->ID ),
1594	__( 'Share on Tumblr', 'jetpack' ),
1595	$posttype
1596	);
1597	} else {
1598	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Tumblr', 'share to', 'jetpack' ), __( 'Click to share on Tumblr', 'jetpack' ), 'share=tumblr' );
1599	}
1600	}
1601
1602	public function process_request( $post, array $post_data ) {
1603	// Record stats
1604	parent::process_request( $post, $post_data );
1605
1606	// Redirect to Tumblr's sharing endpoint (a la their bookmarklet)
1607	$url = 'https://www.tumblr.com/share?v=3&u=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&t=' . rawurlencode( $this->get_share_title( $post->ID ) ) . '&s=';
1608	wp_redirect( $url );
1609	die();
1610	}
1611
1612	public function display_footer() {
1613	if ( $this->smart ) {
1614	?><script id="tumblr-js" type="text/javascript" src="https://assets.tumblr.com/share-button.js"></script><?php
1615	} else {
1616	$this->js_dialog( $this->shortname, array( 'width' => 450, 'height' => 450 ) );
1617	}
1618	}
1619	}
1620
1621	class Share_Pinterest extends Sharing_Source {
1622	public $shortname = 'pinterest';
1623	public $icon = '\f209';
1624
1625	public function __construct( $id, array $settings ) {
1626	parent::__construct( $id, $settings );
1627	if ( 'official' == $this->button_style ) {
1628	$this->smart = true;
1629	} else {
1630	$this->smart = false;
1631	}
1632	}
1633
1634	public function get_name() {
1635	return __( 'Pinterest', 'jetpack' );
1636	}
1637
1638	public function get_image( $post ) {
1639	if ( class_exists( 'Jetpack_PostImages' ) ) {
1640	$image = Jetpack_PostImages::get_image( $post->ID, array( 'fallback_to_avatars' => true ) );
1641	if ( ! empty( $image ) ) {
1642	return $image['src'];
1643	}
1644	}
1645
1646	/**
1647	* Filters the default image used by the Pinterest Pin It share button.
1648	*
1649	* @module sharedaddy
1650	*
1651	* @since 3.6.0
1652	*
1653	* @param string $url Default image URL.
1654	*/
1655	return apply_filters( 'jetpack_sharing_pinterest_default_image', 'https://s0.wp.com/i/blank.jpg' );
1656	}
1657
1658	public function get_external_url( $post ) {
1659	$url = 'https://www.pinterest.com/pin/create/button/?url=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&media=' . rawurlencode( $this->get_image( $post ) ) . '&description=' . rawurlencode( $post->post_title );
1660
1661	/**
1662	* Filters the Pinterest share URL used in sharing button output.
1663	*
1664	* @module sharedaddy
1665	*
1666	* @since 3.6.0
1667	*
1668	* @param string $url Pinterest share URL.
1669	*/
1670	return apply_filters( 'jetpack_sharing_pinterest_share_url', $url );
1671	}
1672
1673	public function get_widget_type() {
1674	/**
1675	* Filters the Pinterest widget type.
1676	*
1677	* @see https://business.pinterest.com/en/widget-builder
1678	*
1679	* @module sharedaddy
1680	*
1681	* @since 3.6.0
1682	*
1683	* @param string $type Pinterest widget type. Default of 'buttonPin' for single-image selection. 'buttonBookmark' for multi-image modal.
1684	*/
1685	return apply_filters( 'jetpack_sharing_pinterest_widget_type', 'buttonPin' );
1686	}
1687
1688	public function get_display( $post ) {
1689	$display = '';
1690
1691	if ( $this->smart ) {
1692	$display = sprintf(
1693	'<div class="pinterest_button"><a href="%s" data-pin-do="%s" data-pin-config="beside"><img src="//assets.pinterest.com/images/pidgets/pinit_fg_en_rect_gray_20.png" /></a></div>',
1694	esc_url( $this->get_external_url( $post ) ),
1695	esc_attr( $this->get_widget_type() )
1696	);
1697	} else {
1698	$display = $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Pinterest', 'share to', 'jetpack' ), __( 'Click to share on Pinterest', 'jetpack' ), 'share=pinterest', 'sharing-pinterest-' . $post->ID );
1699	}
1700
1701	/** This filter is already documented in modules/sharedaddy/sharing-sources.php */
1702	if ( apply_filters( 'jetpack_register_post_for_share_counts', true, $post->ID, 'linkedin' ) ) {
1703	sharing_register_post_for_share_counts( $post->ID );
1704	}
1705
1706	return $display;
1707	}
1708
1709	public function process_request( $post, array $post_data ) {
1710	// Record stats
1711	parent::process_request( $post, $post_data );
1712	// If we're triggering the multi-select panel, then we don't need to redirect to Pinterest
1713	if ( ! isset( $_GET['js_only'] ) ) {
1714	$pinterest_url = esc_url_raw( $this->get_external_url( $post ) );
1715	wp_redirect( $pinterest_url );
1716	} else {
1717	echo '// share count bumped';
1718	}
1719	die();
1720	}
1721
1722	public function display_footer() {
1723	/**
1724	* Filter the Pin it button appearing when hovering over images when using the official button style.
1725	*
1726	* @module sharedaddy
1727	*
1728	* @since 3.6.0
1729	*
1730	* @param bool $jetpack_pinit_over True by default, displays the Pin it button when hovering over images.
1731	*/
1732	$jetpack_pinit_over = apply_filters( 'jetpack_pinit_over_button', true );
1733	?>
1734	<?php if ( $this->smart ) : ?>
1735	<script type="text/javascript">
1736	( function () {
1737	// Pinterest shared resources
1738	var s = document.createElement( 'script' );
1739	s.type = 'text/javascript';
1740	s.async = true;
1741	<?php
1742	if ( $jetpack_pinit_over ) {
1743	echo "s.setAttribute( 'data-pin-hover', true );";
1744	}
1745	?>
1746	s.src = window.location.protocol + '//assets.pinterest.com/js/pinit.js';
1747	var x = document.getElementsByTagName( 'script' )[ 0 ];
1748	x.parentNode.insertBefore(s, x);
1749	// if 'Pin it' button has 'counts' make container wider
1750	function init() {
1751	var shares = document.querySelectorAll( 'li.share-pinterest' );
1752	for ( var i = 0; i < shares.length; i++ ) {
1753	var share = shares[ i ];
1754	if ( share.querySelector( 'a span:visible' ) ) {
1755	share.style.width = '80px';
1756	}
1757	}
1758	}
1759
1760	if ( document.readyState !== 'complete' ) {
1761	document.addEventListener( 'load', init );
1762	} else {
1763	init();
1764	}
1765	} )();
1766	</script>
1767	<?php elseif ( 'buttonPin' != $this->get_widget_type() ) : ?>
1768	<script type="text/javascript">
1769	( function () {
1770	function init() {
1771	document.body.addEventListener( 'click', function ( e ) {
1772	if ( e.target && (
1773	e.target.matches && e.target.matches( 'a.share-pinterest' ) \|\|
1774	e.target.msMatchesSelector && e.target.msMatchesSelector( 'a.share-pinterest' )
1775	) ) {
1776	e.preventDefault();
1777	// Load Pinterest Bookmarklet code
1778	var s = document.createElement( 'script' );
1779	s.type = 'text/javascript';
1780	s.src = window.location.protocol + '//assets.pinterest.com/js/pinmarklet.js?r=' + ( Math.random() * 99999999 );
1781	var x = document.getElementsByTagName( 'script' )[ 0 ];
1782	x.parentNode.insertBefore( s, x );
1783	// Trigger Stats
1784	var s = document.createElement( 'script' );
1785	s.type = 'text/javascript';
1786	s.src = e.target.href + ( e.target.href.indexOf( '?' ) ? '&' : '?' ) + 'js_only=1';
1787	var x = document.getElementsByTagName( 'script' )[ '0' ];
1788	x.parentNode.insertBefore( s, x );
1789	}
1790	} );
1791	}
1792
1793	if ( document.readyState === 'loading' ) {
1794	document.addEventListener( 'DOMContentLoaded', init );
1795	} else {
1796	init();
1797	}
1798	} )();
1799	</script>
1800	<?php endif;
1801	}
1802	}
1803
1804	class Share_Pocket extends Sharing_Source {
1805	public $shortname = 'pocket';
1806	public $icon = '\f224';
1807
1808	public function __construct( $id, array $settings ) {
1809	parent::__construct( $id, $settings );
1810
1811	if ( 'official' == $this->button_style ) {
1812	$this->smart = true;
1813	} else {
1814	$this->smart = false;
1815	}
1816	}
1817
1818	public function get_name() {
1819	return __( 'Pocket', 'jetpack' );
1820	}
1821
1822	public function process_request( $post, array $post_data ) {
1823	// Record stats
1824	parent::process_request( $post, $post_data );
1825
1826	$pocket_url = esc_url_raw( 'https://getpocket.com/save/?url=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&title=' . rawurlencode( $this->get_share_title( $post->ID ) ) );
1827	wp_redirect( $pocket_url );
1828	exit;
1829	}
1830
1831	public function get_display( $post ) {
1832	if ( $this->smart ) {
1833	$post_count = 'horizontal';
1834
1835	$button = '';
1836	$button .= '<div class="pocket_button">';
1837	$button .= sprintf( '<a href="https://getpocket.com/save" class="pocket-btn" data-lang="%s" data-save-url="%s" data-pocket-count="%s" >%s</a>', 'en', esc_attr( $this->get_share_url( $post->ID ) ), $post_count, esc_attr__( 'Pocket', 'jetpack' ) );
1838	$button .= '</div>';
1839
1840	return $button;
1841	} else {
1842	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Pocket', 'share to', 'jetpack' ), __( 'Click to share on Pocket', 'jetpack' ), 'share=pocket' );
1843	}
1844
1845	}
1846
1847	/**
1848	* AMP display for Pocket.
1849	*
1850	* @param \WP_Post $post The current post being viewed.
1851	*/
1852	public function get_amp_display( $post ) {
1853	$attrs = array(
1854	'data-share-endpoint' => esc_url_raw( 'https://getpocket.com/save/?url=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&title=' . rawurlencode( $this->get_share_title( $post->ID ) ) ),
1855	);
1856
1857	return $this->build_amp_markup( $attrs );
1858	}
1859
1860	function display_footer() {
1861	if ( $this->smart ) :
1862	?>
1863	<script>
1864	( function () {
1865	var currentScript = document.currentScript;
1866
1867	// Don't use Pocket's default JS as it we need to force init new Pocket share buttons loaded via JS.
1868	function jetpack_sharing_pocket_init() {
1869	var script = document.createElement( 'script' );
1870	var prev = currentScript \|\| document.getElementsByTagName( 'script' )[ 0 ];
1871	script.setAttribute( 'async', true );
1872	script.setAttribute( 'src', 'https://widgets.getpocket.com/v1/j/btn.js?v=1' );
1873	prev.parentNode.insertBefore( script, prev );
1874	}
1875
1876	if ( document.readyState === 'loading' ) {
1877	document.addEventListener( 'DOMContentLoaded', jetpack_sharing_pocket_init );
1878	} else {
1879	jetpack_sharing_pocket_init();
1880	}
1881	document.body.addEventListener( 'is.post-load', jetpack_sharing_pocket_init );
1882	} )();
1883	</script>
1884	<?php
1885	else :
1886	$this->js_dialog( $this->shortname, array( 'width' => 450, 'height' => 450 ) );
1887	endif;
1888
1889	}
1890
1891	}
1892
1893	class Share_Telegram extends Sharing_Source {
1894	public $shortname = 'telegram';
1895
1896	public function __construct( $id, array $settings ) {
1897	parent::__construct( $id, $settings );
1898	}
1899
1900	public function get_name() {
1901	return __( 'Telegram', 'jetpack' );
1902	}
1903	public function process_request( $post, array $post_data ) {
1904	// Record stats
1905	parent::process_request( $post, $post_data );
1906	$telegram_url = esc_url_raw( 'https://telegram.me/share/url?url=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&text=' . rawurlencode( $this->get_share_title( $post->ID ) ) );
1907	wp_redirect( $telegram_url );
1908	exit;
1909	}
1910
1911	public function get_display( $post ) {
1912	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'Telegram', 'share to', 'jetpack' ), __( 'Click to share on Telegram', 'jetpack' ), 'share=telegram' );
1913	}
1914
1915	/**
1916	* AMP display for Telegram.
1917	*
1918	* @param \WP_Post $post The current post being viewed.
1919	*/
1920	public function get_amp_display( $post ) {
1921	$attrs = array(
1922	'data-share-endpoint' => esc_url_raw( 'https://telegram.me/share/url?url=' . rawurlencode( $this->get_share_url( $post->ID ) ) . '&text=' . rawurlencode( $this->get_share_title( $post->ID ) ) ),
1923	);
1924
1925	return $this->build_amp_markup( $attrs );
1926	}
1927
1928	function display_footer() {
1929	$this->js_dialog( $this->shortname, array( 'width' => 450, 'height' => 450 ) );
1930	}
1931	}
1932
1933	class Jetpack_Share_WhatsApp extends Sharing_Source {
1934	public $shortname = 'jetpack-whatsapp';
1935
1936	public function __construct( $id, array $settings ) {
1937	parent::__construct( $id, $settings );
1938	}
1939
1940	public function get_name() {
1941	return __( 'WhatsApp', 'jetpack' );
1942	}
1943
1944	public function get_display( $post ) {
1945	return $this->get_link( $this->get_process_request_url( $post->ID ), _x( 'WhatsApp', 'share to', 'jetpack' ), __( 'Click to share on WhatsApp', 'jetpack' ), 'share=jetpack-whatsapp' );
1946	}
1947
1948	/**
1949	* AMP display for Whatsapp.
1950	*
1951	* @param \WP_Post $post The current post being viewed.
1952	*/
1953	public function get_amp_display( $post ) {
1954	$attrs = array(
1955	'type' => 'whatsapp',
1956	);
1957
1958	return $this->build_amp_markup( $attrs );
1959	}
1960
1961	public function process_request( $post, array $post_data ) {
1962	// Record stats
1963	parent::process_request( $post, $post_data );
1964
1965	// Firefox for desktop doesn't handle the "api.whatsapp.com" URL properly, so use "web.whatsapp.com"
1966	if ( User_Agent_Info::is_firefox_desktop() ) {
1967	$url = 'https://web.whatsapp.com/send?text=';
1968	} else {
1969	$url = 'https://api.whatsapp.com/send?text=';
1970	}
1971
1972	$url .= rawurlencode( $this->get_share_title( $post->ID ) . ' ' . $this->get_share_url( $post->ID ) );
1973	wp_redirect( $url );
1974	exit;
1975	}
1976	}
1977
1978	class Share_Skype extends Sharing_Source {
1979	public $shortname = 'skype';
1980	public $icon = '\f220';
1981	private $share_type = 'default';
1982
1983	public function __construct( $id, array $settings ) {
1984	parent::__construct( $id, $settings );
1985
1986	if ( isset( $settings['share_type'] ) ) {
1987	$this->share_type = $settings['share_type'];
1988	}
1989
1990	if ( 'official' == $this->button_style ) {
1991	$this->smart = true;
1992	} else {
1993	$this->smart = false;
1994	}
1995
1996	}
1997
1998	public function get_name() {
1999	return __( 'Skype', 'jetpack' );
2000	}
2001
2002	public function get_display( $post ) {
2003	if ( $this->smart ) {
2004	$skype_share_html = sprintf(
2005	'<div class="skype-share" data-href="%1$s" data-lang="%2$s" data-style="small" data-source="jetpack" ></div>',
2006	esc_attr( $this->get_share_url( $post->ID ) ),
2007	'en-US'
2008	);
2009	return $skype_share_html;
2010	}
2011
2012	/** This filter is already documented in modules/sharedaddy/sharing-sources.php */
2013	if ( apply_filters( 'jetpack_register_post_for_share_counts', true, $post->ID, 'skype' ) ) {
2014	sharing_register_post_for_share_counts( $post->ID );
2015	}
2016	return $this->get_link(
2017	$this->get_process_request_url( $post->ID ), _x( 'Skype', 'share to', 'jetpack' ), __( 'Click to share on Skype', 'jetpack' ), 'share=skype', 'sharing-skype-' . $post->ID );
2018	}
2019
2020	/**
2021	* AMP display for Skype.
2022	*
2023	* @param \WP_Post $post The current post being viewed.
2024	*/
2025	public function get_amp_display( $post ) {
2026	$attrs = array(
2027	'data-share-endpoint' => sprintf(
2028	'https://web.skype.com/share?url=%1$s&lang=%2$s=&source=jetpack',
2029	rawurlencode( $this->get_share_url( $post->ID ) ),
2030	'en-US'
2031	),
2032	);
2033
2034	return $this->build_amp_markup( $attrs );
2035	}
2036
2037	public function process_request( $post, array $post_data ) {
2038	$skype_url = sprintf(
2039	'https://web.skype.com/share?url=%1$s&lang=%2$s=&source=jetpack',
2040	rawurlencode( $this->get_share_url( $post->ID ) ),
2041	'en-US'
2042	);
2043
2044	// Record stats
2045	parent::process_request( $post, $post_data );
2046
2047	// Redirect to Skype
2048	wp_redirect( $skype_url );
2049	die();
2050	}
2051
2052	public function display_footer() {
2053	if ( $this->smart ) :
2054	?>
2055	<script>
2056	(function(r, d, s) {
2057	r.loadSkypeWebSdkAsync = r.loadSkypeWebSdkAsync \|\| function(p) {
2058	var js, sjs = d.getElementsByTagName(s)[0];
2059	if (d.getElementById(p.id)) { return; }
2060	js = d.createElement(s);
2061	js.id = p.id;
2062	js.src = p.scriptToLoad;
2063	js.onload = p.callback
2064	sjs.parentNode.insertBefore(js, sjs);
2065	};
2066	var p = {
2067	scriptToLoad: 'https://swx.cdn.skype.com/shared/v/latest/skypewebsdk.js',
2068	id: 'skype_web_sdk'
2069	};
2070	r.loadSkypeWebSdkAsync(p);
2071	})(window, document, 'script');
2072	</script>
2073	<?php
2074	else :
2075	$this->js_dialog( $this->shortname, array( 'width' => 305, 'height' => 665 ) );
2076	endif;
2077	}
2078	}
2079