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Jetpack – WP Security, Backup, Speed, & Growth / 9.5
Jetpack – WP Security, Backup, Speed, & Growth v9.5
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jetpack / modules / subscriptions / views.php

views.php in Jetpack – WP Security, Backup, Speed, & Growth 9.5, at modules/subscriptions/views.php

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1 <?php
2
3 class Jetpack_Subscriptions_Widget extends WP_Widget {
4 static $instance_count = 0;
5 /**
6 * @var array When printing the submit button, what tags are allowed
7 */
8 public static $allowed_html_tags_for_submit_button = array(
9 'br' => array(),
10 's' => array(),
11 'strong' => array(),
12 'em' => array(),
13 );
14
15 /**
16 * Use this variable when printing the message after submitting an email in subscription widgets
17 *
18 * @var array what tags are allowed
19 */
20 public static $allowed_html_tags_for_message = array(
21 'a' => array(
22 'href' => array(),
23 'title' => array(),
24 'rel' => array(),
25 'target' => array(),
26 ),
27 'br' => array(),
28 );
29
30 function __construct() {
31 $widget_ops = array(
32 'classname' => 'widget_blog_subscription jetpack_subscription_widget',
33 'description' => __( 'Add an email signup form to allow people to subscribe to your blog.', 'jetpack' ),
34 'customize_selective_refresh' => true,
35 );
36
37 $name = self::is_jetpack() ?
38 /** This filter is documented in modules/widgets/facebook-likebox.php */
39 apply_filters( 'jetpack_widget_name', __( 'Blog Subscriptions', 'jetpack' ) ) :
40 __( 'Follow Blog', 'jetpack' );
41
42 parent::__construct(
43 'blog_subscription',
44 $name,
45 $widget_ops
46 );
47
48 if ( self::is_jetpack() &&
49 (
50 is_active_widget( false, false, $this->id_base ) ||
51 is_active_widget( false, false, 'monster' ) ||
52 is_customize_preview()
53 )
54 ) {
55 add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_style' ) );
56 }
57 }
58
59 /**
60 * Enqueue the form's CSS.
61 *
62 * @since 4.5.0
63 */
64 function enqueue_style() {
65 wp_register_style(
66 'jetpack-subscriptions',
67 plugins_url( 'subscriptions.css', __FILE__ ),
68 array(),
69 JETPACK__VERSION
70 );
71 wp_enqueue_style( 'jetpack-subscriptions' );
72 }
73
74 /**
75 * Renders a full widget either within the context of WordPress widget, or in response to a shortcode.
76 *
77 * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'.
78 * @param array $instance The settings for the particular instance of the widget.
79 */
80 function widget( $args, $instance ) {
81 if ( self::is_jetpack() &&
82 /** This filter is documented in modules/contact-form/grunion-contact-form.php */
83 false === apply_filters( 'jetpack_auto_fill_logged_in_user', false )
84 ) {
85 $subscribe_email = '';
86 } else {
87 $current_user = wp_get_current_user();
88 if ( ! empty( $current_user->user_email ) ) {
89 $subscribe_email = esc_attr( $current_user->user_email );
90 } else {
91 $subscribe_email = '';
92 }
93 }
94
95 $stats_action = self::is_jetpack() ? 'jetpack_subscriptions' : 'follow_blog';
96 /** This action is documented in modules/widgets/gravatar-profile.php */
97 do_action( 'jetpack_stats_extra', 'widget_view', $stats_action );
98
99 $after_widget = isset( $args['after_widget'] ) ? $args['after_widget'] : '';
100 $before_widget = isset( $args['before_widget'] ) ? $args['before_widget'] : '';
101 $instance = wp_parse_args( (array) $instance, $this->defaults() );
102
103 echo $before_widget;
104
105 Jetpack_Subscriptions_Widget::$instance_count ++;
106
107 self::render_widget_title( $args, $instance );
108
109 self::render_widget_status_messages( $instance );
110
111 self::render_widget_subscription_form( $args, $instance, $subscribe_email );
112
113 echo "\n" . $after_widget;
114 }
115
116 /**
117 * Prints the widget's title. If show_only_email_and_button is true, we will not show a title.
118 *
119 * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'.
120 * @param array $instance The settings for the particular instance of the widget.
121 */
122 static function render_widget_title( $args, $instance ) {
123 $show_only_email_and_button = $instance['show_only_email_and_button'];
124 $before_title = isset( $args['before_title'] ) ? $args['before_title'] : '';
125 $after_title = isset( $args['after_title'] ) ? $args['after_title'] : '';
126 if ( self::is_wpcom() && ! $show_only_email_and_button ) {
127 if ( self::is_current_user_subscribed() ) {
128 if ( ! empty( $instance['title_following'] ) ) {
129 echo $before_title . '<label for="subscribe-field' . ( Jetpack_Subscriptions_Widget::$instance_count > 1 ? '-' . Jetpack_Subscriptions_Widget::$instance_count : '' ) . '">' . esc_attr( $instance['title_following'] ) . '</label>' . $after_title . "\n";
130 }
131 } else {
132 if ( ! empty( $instance['title'] ) ) {
133 echo $before_title . '<label for="subscribe-field' . ( Jetpack_Subscriptions_Widget::$instance_count > 1 ? '-' . Jetpack_Subscriptions_Widget::$instance_count : '' ) . '">' . esc_attr( $instance['title'] ) . '</label>' . $after_title . "\n";
134 }
135 }
136 }
137
138 if ( self::is_jetpack() && empty( $instance['show_only_email_and_button'] ) ) {
139 echo $args['before_title'] . esc_attr( $instance['title'] ) . $args['after_title'] . "\n";
140 }
141 }
142
143 /**
144 * Prints the subscription block's status messages after someone has attempted to subscribe.
145 * Either a success message or an error message.
146 *
147 * @param array $instance The settings for the particular instance of the widget.
148 */
149 static function render_widget_status_messages( $instance ) {
150 if ( self::is_jetpack() && isset( $_GET['subscribe'] ) ) {
151 $success_message = isset( $instance['success_message'] ) ? stripslashes( $instance['success_message'] ) : '';
152 $subscribers_total = self::fetch_subscriber_count();
153 switch ( $_GET['subscribe'] ) :
154 case 'invalid_email' : ?>
155 <p class="error"><?php esc_html_e( 'The email you entered was invalid. Please check and try again.', 'jetpack' ); ?></p>
156 <?php break;
157 case 'opted_out' : ?>
158 <p class="error"><?php printf( __( 'The email address has opted out of subscription emails. <br /> You can manage your preferences at <a href="%1$s" title="%2$s" target="_blank">subscribe.wordpress.com</a>', 'jetpack' ),
159 'https://subscribe.wordpress.com/',
160 __( 'Manage your email preferences.', 'jetpack' )
161 ); ?></p>
162 <?php break;
163 case 'already' : ?>
164 <p class="error"><?php printf( __( 'You have already subscribed to this site. Please check your inbox. <br /> You can manage your preferences at <a href="%1$s" title="%2$s" target="_blank">subscribe.wordpress.com</a>', 'jetpack' ),
165 'https://subscribe.wordpress.com/',
166 __( 'Manage your email preferences.', 'jetpack' )
167 ); ?></p>
168 <?php break;
169 case 'many_pending_subs':
170 ?>
171 <p class="error">
172 <?php
173 printf(
174 wp_kses(
175 /* translators: 1: Link to Subscription Management page https://subscribe.wordpress.com/, 2: Description of this link */
176 __( 'You already have several pending email subscriptions. <br /> Approve or delete a few subscriptions at <a href="%1$s" title="%2$s" target="_blank" rel="noopener noreferrer">subscribe.wordpress.com</a> before continuing.', 'jetpack' ),
177 self::$allowed_html_tags_for_message
178 ),
179 'https://subscribe.wordpress.com/',
180 esc_attr__( 'Manage your email preferences.', 'jetpack' )
181 );
182 ?>
183 </p>
184 <?php break;
185 case 'pending':
186 ?>
187 <p class="error">
188 <?php
189 printf(
190 wp_kses(
191 /* translators: 1: Link to Subscription Management page https://subscribe.wordpress.com/, 2: Description of this link */
192 __( 'You subscribed this site before but you have not clicked the confirmation link yet. Please check your inbox. <br /> Otherwise, you can manage your preferences at <a href="%1$s" title="%2$s" target="_blank" rel="noopener noreferrer">subscribe.wordpress.com</a>.', 'jetpack' ),
193 self::$allowed_html_tags_for_message
194 ),
195 'https://subscribe.wordpress.com/',
196 esc_attr__( 'Manage your email preferences.', 'jetpack' )
197 );
198 ?>
199 </p>
200 <?php
201 break;
202 case 'success' : ?>
203 <div class="success"><?php echo wpautop( str_replace( '[total-subscribers]', number_format_i18n( $subscribers_total['value'] ), $success_message ) ); ?></div>
204 <?php break;
205 default : ?>
206 <p class="error"><?php esc_html_e( 'There was an error when subscribing. Please try again.', 'jetpack' ); ?></p>
207 <?php break;
208 endswitch;
209 }
210
211 if ( self::is_wpcom() && self::wpcom_has_status_message() ) {
212 global $themecolors;
213 switch ( $_GET['blogsub'] ) {
214 case 'confirming':
215 echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>";
216 _e( 'Thanks for subscribing! You&rsquo;ll get an email with a link to confirm your subscription. If you don&rsquo;t get it, please <a href="https://en.support.wordpress.com/contact/">contact us</a>.' );
217 echo "</div>";
218 break;
219 case 'blocked':
220 echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>";
221 _e( 'Subscriptions have been blocked for this email address.' );
222 echo "</div>";
223 break;
224 case 'flooded':
225 echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>";
226 _e( 'You already have several pending email subscriptions. Approve or delete a few through your <a href="https://subscribe.wordpress.com/">Subscription Manager</a> before attempting to subscribe to more blogs.' );
227 echo "</div>";
228 break;
229 case 'spammed':
230 echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>";
231 echo wp_kses_post( sprintf( __( 'Because there are many pending subscriptions for this email address, we have blocked the subscription. Please <a href="%s">activate or delete</a> pending subscriptions before attempting to subscribe.' ), 'https://subscribe.wordpress.com/' ) );
232 echo "</div>";
233 break;
234 case 'subscribed':
235 echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>";
236 _e( 'You&rsquo;re already subscribed to this site.' );
237 echo "</div>";
238 break;
239 case 'pending':
240 echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>";
241 _e( 'You have a pending subscription already; we just sent you another email. Click the link or <a href="https://en.support.wordpress.com/contact/">contact us</a> if you don&rsquo;t receive it.' );
242 echo "</div>";
243 break;
244 case 'confirmed':
245 echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>";
246 _e( 'Congrats, you&rsquo;re subscribed! You&rsquo;ll get an email with the details of your subscription and an unsubscribe link.' );
247 echo "</div>";
248 break;
249 }
250 }
251 }
252
253 /**
254 * Renders a form allowing folks to subscribe to the blog.
255 *
256 * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'.
257 * @param array $instance The settings for the particular instance of the widget.
258 * @param string $subscribe_email The email to use to prefill the form.
259 */
260 static function render_widget_subscription_form( $args, $instance, $subscribe_email ) {
261 $show_only_email_and_button = $instance['show_only_email_and_button'];
262 $show_subscribers_total = (bool) $instance['show_subscribers_total'];
263 $subscribe_text = empty( $instance['show_only_email_and_button'] ) ?
264 stripslashes( $instance['subscribe_text'] ) :
265 false;
266 $referer = ( is_ssl() ? 'https' : 'http' ) . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
267 $source = 'widget';
268 $widget_id = esc_attr( ! empty( $args['widget_id'] ) ? esc_attr( $args['widget_id'] ) : mt_rand( 450, 550 ) );
269 $subscribe_button = ! empty( $instance['submit_button_text'] ) ? $instance['submit_button_text'] : $instance['subscribe_button'];
270 $subscribers_total = self::fetch_subscriber_count();
271 $subscribe_placeholder = isset( $instance['subscribe_placeholder'] ) ? stripslashes( $instance['subscribe_placeholder'] ) : '';
272 $submit_button_classes = isset( $instance['submit_button_classes'] ) ? $instance['submit_button_classes'] : '';
273 $submit_button_styles = isset( $instance['submit_button_styles'] ) ? $instance['submit_button_styles'] : '';
274 $email_field_classes = isset( $instance['email_field_classes'] ) ? $instance['email_field_classes'] : '';
275 $email_field_styles = isset( $instance['email_field_styles'] ) ? $instance['email_field_styles'] : '';
276
277 if ( self::is_wpcom() && ! self::wpcom_has_status_message() ) {
278 global $current_blog;
279
280 $url = defined( 'SUBSCRIBE_BLOG_URL' ) ? SUBSCRIBE_BLOG_URL : '';
281 $form_id = 'subscribe-blog' . self::$instance_count > 1
282 ? '-' . self::$instance_count
283 : '';
284 ?>
285 <form
286 action="<?php echo esc_url( $url ); ?>"
287 method="post"
288 accept-charset="utf-8"
289 id="<?php echo esc_attr( $form_id ); ?>"
290 >
291 <?php
292 if ( ! $show_only_email_and_button ) {
293 // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
294 echo wpautop( $subscribe_text );
295 }
296 if ( $show_subscribers_total && $subscribers_total ) {
297 ?>
298 <div class="jetpack-subscribe-count">
299 <p>
300 <?php
301 /* translators: %s: number of folks following the blog */
302 echo esc_html( sprintf( _n( 'Join %s other follower', 'Join %s other followers', $subscribers_total, 'jetpack' ), number_format_i18n( $subscribers_total ) ) );
303 ?>
304 </p>
305 </div>
306 <?php
307 }
308 $email_field_id = 'subscribe-field';
309 $email_field_id .= self::$instance_count > 1
310 ? '-' . self::$instance_count
311 : '';
312 $label_field_id = $email_field_id . '-label';
313 ?>
314 <p id="subscribe-email">
315 <label
316 id="<?php echo esc_attr( $label_field_id ); ?>"
317 for="<?php echo esc_attr( $email_field_id ); ?>"
318 class="screen-reader-text"
319 >
320 <?php echo esc_html__( 'Email Address:', 'jetpack' ); ?>
321 </label>
322
323 <?php
324 printf(
325 '<input
326 type="text"
327 name="email"
328 %1$s
329 style="%2$s"
330 placeholder="%3$s"
331 value=""
332 id="%4$s"
333 />',
334 ( ! empty( $email_field_classes )
335 ? 'class="' . esc_attr( $email_field_classes ) . '"'
336 : ''
337 ),
338 ( ! empty( $email_field_styles )
339 ? esc_attr( $email_field_styles )
340 : 'width: 95%; padding: 1px 10px'
341 ),
342 esc_attr__( 'Enter your email address', 'jetpack' ),
343 esc_attr( $email_field_id )
344 );
345 ?>
346 </p>
347
348 <p id="subscribe-submit">
349 <input type="hidden" name="action" value="subscribe"/>
350 <input type="hidden" name="blog_id" value="<?php echo (int) $current_blog->blog_id; ?>"/>
351 <input type="hidden" name="source" value="<?php echo esc_url( $referer ); ?>"/>
352 <input type="hidden" name="sub-type" value="<?php echo esc_attr( $source ); ?>"/>
353 <input type="hidden" name="redirect_fragment" value="<?php echo esc_attr( $widget_id ); ?>"/>
354 <?php wp_nonce_field( 'blogsub_subscribe_' . $current_blog->blog_id, '_wpnonce', false ); ?>
355 <button type="submit"
356 <?php if ( ! empty( $submit_button_classes ) ) { ?>
357 class="<?php echo esc_attr( $submit_button_classes ); ?>"
358 <?php }; ?>
359 <?php if ( ! empty( $submit_button_styles ) ) { ?>
360 style="<?php echo esc_attr( $submit_button_styles ); ?>"
361 <?php }; ?>
362 >
363 <?php
364 echo wp_kses(
365 $subscribe_button,
366 self::$allowed_html_tags_for_submit_button
367 );
368 ?>
369 </button>
370 </p>
371 </form>
372 <?php
373 }
374
375 if ( self::is_jetpack() ) {
376 /**
377 * Filter the subscription form's ID prefix.
378 *
379 * @module subscriptions
380 *
381 * @since 2.7.0
382 *
383 * @param string subscribe-field Subscription form field prefix.
384 * @param int $widget_id Widget ID.
385 */
386 $subscribe_field_id = apply_filters( 'subscribe_field_id', 'subscribe-field', $widget_id );
387 ?>
388 <form action="#" method="post" accept-charset="utf-8" id="subscribe-blog-<?php echo $widget_id; ?>">
389 <?php
390 if ( $subscribe_text && ( ! isset ( $_GET['subscribe'] ) || 'success' != $_GET['subscribe'] ) ) {
391 ?>
392 <div id="subscribe-text"><?php echo wpautop( str_replace( '[total-subscribers]', number_format_i18n( $subscribers_total['value'] ), $subscribe_text ) ); ?></div><?php
393 }
394
395 if ( $show_subscribers_total && 0 < $subscribers_total['value'] ) {
396 ?>
397 <div class="jetpack-subscribe-count">
398 <p>
399 <?php
400 /* translators: %s: number of folks following the blog */
401 echo esc_html( sprintf( _n( 'Join %s other subscriber', 'Join %s other subscribers', $subscribers_total['value'], 'jetpack' ), number_format_i18n( $subscribers_total['value'] ) ) );
402 ?>
403 </p>
404 </div>
405 <?php
406 }
407 if ( ! isset ( $_GET['subscribe'] ) || 'success' != $_GET['subscribe'] ) { ?>
408 <p id="subscribe-email">
409 <label id="jetpack-subscribe-label"
410 class="screen-reader-text"
411 for="<?php echo esc_attr( $subscribe_field_id ) . '-' . esc_attr( $widget_id ); ?>">
412 <?php echo ! empty( $subscribe_placeholder ) ? esc_html( $subscribe_placeholder ) : esc_html__( 'Email Address:', 'jetpack' ); ?>
413 </label>
414 <input type="email" name="email" required="required"
415 <?php if ( ! empty( $email_field_classes ) ) { ?>
416 class="<?php echo esc_attr( $email_field_classes ); ?> required"
417 <?php }; ?>
418 <?php if ( ! empty( $email_field_styles ) ) { ?>
419 style="<?php echo esc_attr( $email_field_styles ); ?>"
420 <?php }; ?>
421 value="<?php echo esc_attr( $subscribe_email ); ?>"
422 id="<?php echo esc_attr( $subscribe_field_id ) . '-' . esc_attr( $widget_id ); ?>"
423 placeholder="<?php echo esc_attr( $subscribe_placeholder ); ?>"
424 />
425 </p>
426
427 <p id="subscribe-submit">
428 <input type="hidden" name="action" value="subscribe"/>
429 <input type="hidden" name="source" value="<?php echo esc_url( $referer ); ?>"/>
430 <input type="hidden" name="sub-type" value="<?php echo esc_attr( $source ); ?>"/>
431 <input type="hidden" name="redirect_fragment" value="<?php echo $widget_id; ?>"/>
432 <?php
433 if ( is_user_logged_in() ) {
434 wp_nonce_field( 'blogsub_subscribe_' . get_current_blog_id(), '_wpnonce', false );
435 }
436 ?>
437 <button type="submit"
438 <?php if ( ! empty( $submit_button_classes ) ) { ?>
439 class="<?php echo esc_attr( $submit_button_classes ); ?>"
440 <?php }; ?>
441 <?php if ( ! empty( $submit_button_styles ) ) { ?>
442 style="<?php echo esc_attr( $submit_button_styles ); ?>"
443 <?php }; ?>
444 name="jetpack_subscriptions_widget"
445 >
446 <?php
447 echo wp_kses(
448 $subscribe_button,
449 self::$allowed_html_tags_for_submit_button
450 ); ?>
451 </button>
452 </p>
453 <?php } ?>
454 </form>
455 <?php }
456 }
457
458 /**
459 * Determines if the current user is subscribed to the blog.
460 *
461 * @return bool Is the person already subscribed.
462 */
463 static function is_current_user_subscribed() {
464 $subscribed = isset( $_GET['subscribe'] ) && 'success' == $_GET['subscribe'];
465
466 if ( self::is_wpcom() && class_exists( 'Blog_Subscription' ) && class_exists( 'Blog_Subscriber' ) ) {
467 $subscribed = is_user_logged_in() && Blog_Subscription::is_subscribed( new Blog_Subscriber() );
468 }
469
470 return $subscribed;
471 }
472
473 /**
474 * Is this script running in the wordpress.com environment?
475 *
476 * @return bool
477 */
478 static function is_wpcom() {
479 return defined( 'IS_WPCOM' ) && IS_WPCOM;
480 }
481
482 /**
483 * Is this script running in a self-hosted environment?
484 *
485 * @return bool
486 */
487 static function is_jetpack() {
488 return ! self::is_wpcom();
489 }
490
491 /**
492 * Used to determine if there is a valid status slug within the wordpress.com environment.
493 *
494 * @return bool
495 */
496 static function wpcom_has_status_message() {
497 return isset( $_GET['blogsub'] ) &&
498 in_array(
499 $_GET['blogsub'],
500 array(
501 'confirming',
502 'blocked',
503 'flooded',
504 'spammed',
505 'subscribed',
506 'pending',
507 'confirmed',
508 )
509 );
510 }
511
512 /**
513 * Determine the amount of folks currently subscribed to the blog.
514 *
515 * @return int|array
516 */
517 static function fetch_subscriber_count() {
518 $subs_count = 0;
519
520 if ( self::is_jetpack() ) {
521 $subs_count = get_transient( 'wpcom_subscribers_total' );
522 if ( false === $subs_count || 'failed' == $subs_count['status'] ) {
523 $xml = new Jetpack_IXR_Client();
524
525 $xml->query( 'jetpack.fetchSubscriberCount' );
526
527 if ( $xml->isError() ) { // if we get an error from .com, set the status to failed so that we will try again next time the data is requested
528 $subs_count = array(
529 'status' => 'failed',
530 'code' => $xml->getErrorCode(),
531 'message' => $xml->getErrorMessage(),
532 'value' => ( isset( $subs_count['value'] ) ) ? $subs_count['value'] : 0,
533 );
534 } else {
535 $subs_count = array(
536 'status' => 'success',
537 'value' => $xml->getResponse(),
538 );
539 }
540
541 set_transient( 'wpcom_subscribers_total', $subs_count, 3600 ); // try to cache the result for at least 1 hour
542 }
543 }
544
545 if ( self::is_wpcom() && function_exists( 'wpcom_reach_total_for_blog' ) ) {
546 $subs_count = wpcom_reach_total_for_blog();
547 }
548
549 return $subs_count;
550 }
551
552 /**
553 * Updates a particular instance of a widget when someone saves it in wp-admin.
554 *
555 * @param array $new_instance
556 * @param array $old_instance
557 *
558 * @return array
559 */
560 function update( $new_instance, $old_instance ) {
561 $instance = $old_instance;
562
563 if ( self::is_jetpack() ) {
564 $instance['title'] = wp_kses( stripslashes( $new_instance['title'] ), array() );
565 $instance['subscribe_placeholder'] = wp_kses( stripslashes( $new_instance['subscribe_placeholder'] ), array() );
566 $instance['subscribe_button'] = wp_kses( stripslashes( $new_instance['subscribe_button'] ), array() );
567 $instance['success_message'] = wp_kses( stripslashes( $new_instance['success_message'] ), array() );
568 }
569
570 if ( self::is_wpcom() ) {
571 $instance['title'] = strip_tags( stripslashes( $new_instance['title'] ) );
572 $instance['title_following'] = strip_tags( stripslashes( $new_instance['title_following'] ) );
573 $instance['subscribe_logged_in'] = wp_filter_post_kses( stripslashes( $new_instance['subscribe_logged_in'] ) );
574 $instance['subscribe_button'] = strip_tags( stripslashes( $new_instance['subscribe_button'] ) );
575 }
576
577 $instance['show_subscribers_total'] = isset( $new_instance['show_subscribers_total'] ) && $new_instance['show_subscribers_total'];
578 $instance['show_only_email_and_button'] = isset( $new_instance['show_only_email_and_button'] ) && $new_instance['show_only_email_and_button'];
579 $instance['subscribe_text'] = wp_filter_post_kses( stripslashes( $new_instance['subscribe_text'] ) );
580
581 return $instance;
582 }
583
584 /**
585 * The default args for rendering a subscription form.
586 *
587 * @return array
588 */
589 static function defaults() {
590 $defaults = array(
591 'show_subscribers_total' => true,
592 'show_only_email_and_button' => false
593 );
594
595 $defaults['title'] = esc_html__( 'Subscribe to Blog via Email', 'jetpack' );
596 $defaults['subscribe_text'] = esc_html__( 'Enter your email address to subscribe to this blog and receive notifications of new posts by email.', 'jetpack' );
597 $defaults['subscribe_placeholder'] = esc_html__( 'Email Address', 'jetpack' );
598 $defaults['subscribe_button'] = esc_html__( 'Subscribe', 'jetpack' );
599 $defaults['success_message'] = esc_html__( "Success! An email was just sent to confirm your subscription. Please find the email now and click 'Confirm Follow' to start subscribing.", 'jetpack' );
600
601 return $defaults;
602 }
603
604 /**
605 * Renders the widget's options form in wp-admin.
606 *
607 * @param array $instance
608 */
609 function form( $instance ) {
610 $instance = wp_parse_args( (array) $instance, $this->defaults() );
611 $show_subscribers_total = checked( $instance['show_subscribers_total'], true, false );
612
613
614 if ( self::is_wpcom() ) {
615 $title = esc_attr( stripslashes( $instance['title'] ) );
616 $title_following = esc_attr( stripslashes( $instance['title_following'] ) );
617 $subscribe_text = esc_attr( stripslashes( $instance['subscribe_text'] ) );
618 $subscribe_logged_in = esc_attr( stripslashes( $instance['subscribe_logged_in'] ) );
619 $subscribe_button = esc_attr( stripslashes( $instance['subscribe_button'] ) );
620 $subscribers_total = self::fetch_subscriber_count();
621 }
622
623 if ( self::is_jetpack() ) {
624 $title = stripslashes( $instance['title'] );
625 $subscribe_text = stripslashes( $instance['subscribe_text'] );
626 $subscribe_placeholder = stripslashes( $instance['subscribe_placeholder'] );
627 $subscribe_button = stripslashes( $instance['subscribe_button'] );
628 $success_message = stripslashes( $instance['success_message'] );
629 $subs_fetch = self::fetch_subscriber_count();
630 if ( 'failed' == $subs_fetch['status'] ) {
631 printf( '<div class="error inline"><p>%s: %s</p></div>', esc_html( $subs_fetch['code'] ), esc_html( $subs_fetch['message'] ) );
632 }
633 $subscribers_total = number_format_i18n( $subs_fetch['value'] );
634 }
635
636 if ( self::is_wpcom() ) : ?>
637 <p>
638 <label for="<?php echo $this->get_field_id( 'title' ); ?>">
639 <?php _e( 'Widget title for non-followers:' ); ?>
640 <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>"
641 name="<?php echo $this->get_field_name( 'title' ); ?>" type="text"
642 value="<?php echo $title; ?>"/>
643 </label>
644 </p>
645 <p>
646 <label for="<?php echo $this->get_field_id( 'title_following' ); ?>">
647 <?php _e( 'Widget title for followers:' ); ?>
648 <input class="widefat" id="<?php echo $this->get_field_id( 'title_following' ); ?>"
649 name="<?php echo $this->get_field_name( 'title_following' ); ?>" type="text"
650 value="<?php echo $title_following; ?>"/>
651 </label>
652 </p>
653 <p>
654 <label for="<?php echo $this->get_field_id( 'subscribe_logged_in' ); ?>">
655 <?php _e( 'Optional text to display to logged in WordPress.com users:' ); ?>
656 <textarea style="width: 95%" id="<?php echo $this->get_field_id( 'subscribe_logged_in' ); ?>"
657 name="<?php echo $this->get_field_name( 'subscribe_logged_in' ); ?>"
658 type="text"><?php echo $subscribe_logged_in; ?></textarea>
659 </label>
660 </p>
661 <p>
662 <label for="<?php echo $this->get_field_id( 'subscribe_text' ); ?>">
663 <?php _e( 'Optional text to display to non-WordPress.com users:' ); ?>
664 <textarea style="width: 95%" id="<?php echo $this->get_field_id( 'subscribe_text' ); ?>"
665 name="<?php echo $this->get_field_name( 'subscribe_text' ); ?>"
666 type="text"><?php echo $subscribe_text; ?></textarea>
667 </label>
668 </p>
669 <p>
670 <label for="<?php echo $this->get_field_id( 'subscribe_button' ); ?>">
671 <?php _e( 'Follow Button Text:' ); ?>
672 <input class="widefat" id="<?php echo $this->get_field_id( 'subscribe_button' ); ?>"
673 name="<?php echo $this->get_field_name( 'subscribe_button' ); ?>" type="text"
674 value="<?php echo $subscribe_button; ?>"/>
675 </label>
676 </p>
677 <p>
678 <label for="<?php echo $this->get_field_id( 'show_subscribers_total' ); ?>">
679 <input type="checkbox" id="<?php echo $this->get_field_id( 'show_subscribers_total' ); ?>"
680 name="<?php echo $this->get_field_name( 'show_subscribers_total' ); ?>"
681 value="1"<?php echo $show_subscribers_total; ?> />
682 <?php echo esc_html( sprintf( _n( 'Show total number of followers? (%s follower)', 'Show total number of followers? (%s followers)', $subscribers_total ), number_format_i18n( $subscribers_total ) ) ); ?>
683 </label>
684 </p>
685 <?php endif;
686
687 if ( self::is_jetpack() ) : ?>
688 <p>
689 <label for="<?php echo $this->get_field_id( 'title' ); ?>">
690 <?php _e( 'Widget title:', 'jetpack' ); ?>
691 <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>"
692 name="<?php echo $this->get_field_name( 'title' ); ?>" type="text"
693 value="<?php echo esc_attr( $title ); ?>"/>
694 </label>
695 </p>
696 <p>
697 <label for="<?php echo $this->get_field_id( 'subscribe_text' ); ?>">
698 <?php _e( 'Optional text to display to your readers:', 'jetpack' ); ?>
699 <textarea class="widefat" id="<?php echo $this->get_field_id( 'subscribe_text' ); ?>"
700 name="<?php echo $this->get_field_name( 'subscribe_text' ); ?>"
701 rows="3"><?php echo esc_html( $subscribe_text ); ?></textarea>
702 </label>
703 </p>
704 <p>
705 <label for="<?php echo $this->get_field_id( 'subscribe_placeholder' ); ?>">
706 <?php esc_html_e( 'Subscribe Placeholder:', 'jetpack' ); ?>
707 <input class="widefat" id="<?php echo $this->get_field_id( 'subscribe_placeholder' ); ?>"
708 name="<?php echo $this->get_field_name( 'subscribe_placeholder' ); ?>" type="text"
709 value="<?php echo esc_attr( $subscribe_placeholder ); ?>"/>
710 </label>
711 </p>
712 <p>
713 <label for="<?php echo $this->get_field_id( 'subscribe_button' ); ?>">
714 <?php _e( 'Subscribe Button:', 'jetpack' ); ?>
715 <input class="widefat" id="<?php echo $this->get_field_id( 'subscribe_button' ); ?>"
716 name="<?php echo $this->get_field_name( 'subscribe_button' ); ?>" type="text"
717 value="<?php echo esc_attr( $subscribe_button ); ?>"/>
718 </label>
719 </p>
720 <p>
721 <label for="<?php echo $this->get_field_id( 'success_message' ); ?>">
722 <?php _e( 'Success Message Text:', 'jetpack' ); ?>
723 <textarea class="widefat" id="<?php echo $this->get_field_id( 'success_message' ); ?>"
724 name="<?php echo $this->get_field_name( 'success_message' ); ?>"
725 rows="5"><?php echo esc_html( $success_message ); ?></textarea>
726 </label>
727 </p>
728 <p>
729 <label for="<?php echo $this->get_field_id( 'show_subscribers_total' ); ?>">
730 <input type="checkbox" id="<?php echo $this->get_field_id( 'show_subscribers_total' ); ?>"
731 name="<?php echo $this->get_field_name( 'show_subscribers_total' ); ?>"
732 value="1"<?php echo $show_subscribers_total; ?> />
733 <?php echo esc_html( sprintf( _n( 'Show total number of subscribers? (%s subscriber)', 'Show total number of subscribers? (%s subscribers)', $subscribers_total, 'jetpack' ), $subscribers_total ) ); ?>
734 </label>
735 </p>
736 <?php endif;
737 }
738 }
739
740 if ( defined( 'IS_WPCOM' ) && IS_WPCOM && function_exists( 'class_alias' ) ) {
741 class_alias( 'Jetpack_Subscriptions_Widget', 'Blog_Subscription_Widget' );
742 }
743
744 function get_jetpack_blog_subscriptions_widget_classname() {
745 return ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ?
746 'Blog_Subscription_Widget' :
747 'Jetpack_Subscriptions_Widget';
748 }
749
750 function jetpack_do_subscription_form( $instance ) {
751 if ( empty( $instance ) || ! is_array( $instance ) ) {
752 $instance = array();
753 }
754
755 if ( empty( $instance['show_subscribers_total'] ) || 'false' === $instance['show_subscribers_total'] ) {
756 $instance['show_subscribers_total'] = false;
757 } else {
758 $instance['show_subscribers_total'] = true;
759 }
760
761 $show_only_email_and_button = isset( $instance['show_only_email_and_button'] ) ? $instance['show_only_email_and_button'] : false;
762 $submit_button_text = isset( $instance['submit_button_text'] ) ? $instance['submit_button_text'] : '';
763
764 // Build up a string with the submit button's classes and styles and set it on the instance
765 $submit_button_classes = isset( $instance['submit_button_classes'] ) ? $instance['submit_button_classes'] : '';
766 $email_field_classes = isset( $instance['email_field_classes'] ) ? $instance['email_field_classes'] : '';
767 $style = '';
768 $submit_button_styles = '';
769 $email_field_styles = '';
770
771 if ( isset( $instance['custom_background_button_color'] ) && 'undefined' !== $instance['custom_background_button_color'] ) {
772 $submit_button_styles .= 'background: ' . $instance['custom_background_button_color'] . '; ';
773 }
774 if ( isset( $instance['custom_text_button_color'] ) && 'undefined' !== $instance['custom_text_button_color'] ) {
775 $submit_button_styles .= 'color: ' . $instance['custom_text_button_color'] . '; ';
776 }
777
778 if ( isset( $instance['custom_font_size'] ) && 'undefined' !== $instance['custom_font_size'] ) {
779 $style = 'font-size: ' . $instance['custom_font_size'] . 'px; ';
780 $submit_button_styles .= $style;
781 $email_field_styles .= $style;
782 }
783 if ( isset( $instance['custom_padding'] ) && 'undefined' !== $instance['custom_padding'] ) {
784 $style = 'padding: ' .
785 $instance['custom_padding'] . 'px ' .
786 round( $instance['custom_padding'] * 1.5 ) . 'px ' .
787 $instance['custom_padding'] . 'px ' .
788 round( $instance['custom_padding'] * 1.5 ) . 'px; ';
789
790 $submit_button_styles .= $style;
791 $email_field_styles .= $style;
792 }
793
794 $button_spacing = 0;
795 if ( ! empty( $instance['custom_spacing'] ) ) {
796 $button_spacing = $instance['custom_spacing'];
797 }
798 if ( isset( $instance['button_on_newline'] ) && 'true' === $instance['button_on_newline'] ) {
799 $submit_button_styles .= 'margin-top: ' . $button_spacing . 'px; ';
800 } else {
801 $submit_button_styles .= 'margin-left: ' . $button_spacing . 'px; ';
802 }
803
804 if ( isset( $instance['custom_border_radius'] ) && 'undefined' !== $instance['custom_border_radius'] ) {
805 $style = 'border-radius: ' . $instance['custom_border_radius'] . 'px; ';
806 $submit_button_styles .= $style;
807 $email_field_styles .= $style;
808 }
809 if ( isset( $instance['custom_border_weight'] ) && 'undefined' !== $instance['custom_border_weight'] ) {
810 $style = 'border-width: ' . $instance['custom_border_weight'] . 'px; ';
811 $submit_button_styles .= $style;
812 $email_field_styles .= $style;
813 }
814 if ( isset( $instance['custom_border_color'] ) && 'undefined' !== $instance['custom_border_color'] ) {
815 $style =
816 'border-color: ' . $instance['custom_border_color'] . '; ' .
817 'border-style: solid;';
818
819 $submit_button_styles .= $style;
820 $email_field_styles .= $style;
821 }
822
823 $instance = shortcode_atts(
824 Jetpack_Subscriptions_Widget::defaults(),
825 $instance,
826 'jetpack_subscription_form'
827 );
828
829 // These must come after the call to shortcode_atts()
830 $instance['submit_button_text'] = $submit_button_text;
831 $instance['show_only_email_and_button'] = $show_only_email_and_button;
832 if ( ! empty( $submit_button_classes ) ) {
833 $instance['submit_button_classes'] = $submit_button_classes;
834 }
835 if ( ! empty( $email_field_classes ) ) {
836 $instance['email_field_classes'] = $email_field_classes;
837 }
838
839 if ( ! empty( $submit_button_styles ) ) {
840 $instance['submit_button_styles'] = trim( $submit_button_styles );
841 }
842 if ( ! empty( $email_field_styles ) ) {
843 $instance['email_field_styles'] = trim( $email_field_styles );
844 }
845
846 $args = array(
847 'before_widget' => '<div class="jetpack_subscription_widget">',
848 );
849 ob_start();
850 the_widget( get_jetpack_blog_subscriptions_widget_classname(), $instance, $args );
851 $output = ob_get_clean();
852
853 return $output;
854 }
855
856 add_shortcode( 'jetpack_subscription_form', 'jetpack_do_subscription_form' );
857 add_shortcode( 'blog_subscription_form', 'jetpack_do_subscription_form' );
858
859 function jetpack_blog_subscriptions_init() {
860 register_widget( get_jetpack_blog_subscriptions_widget_classname() );
861 }
862
863 add_action( 'widgets_init', 'jetpack_blog_subscriptions_init' );
864