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1<?php
2/**
3 * Subscriptions Block.
4 *
5 * @package automattic/jetpack
6 */
7
8namespace Automattic\Jetpack\Extensions\Subscriptions;
9
10use Automattic\Jetpack\Blocks;
11use Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\Abstract_Token_Subscription_Service;
12use Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\Jetpack_Token_Subscription_Service;
13use Automattic\Jetpack\Modules;
14use Automattic\Jetpack\Status\Host;
15use Automattic\Jetpack\Status\Request;
16use Jetpack_Gutenberg;
17use Jetpack_Memberships;
18use Jetpack_Subscriptions_Widget;
19
20if ( ! defined( 'ABSPATH' ) ) {
21    exit( 0 );
22}
23
24require_once __DIR__ . '/class-jetpack-subscription-site.php';
25require_once __DIR__ . '/constants.php';
26require_once JETPACK__PLUGIN_DIR . 'extensions/blocks/premium-content/_inc/subscription-service/include.php';
27
28/**
29 * These block defaults should match ./constants.js
30 */
31const DEFAULT_BORDER_RADIUS_VALUE = 0;
32const DEFAULT_BORDER_WEIGHT_VALUE = 1;
33const DEFAULT_FONTSIZE_VALUE      = '16px';
34const DEFAULT_PADDING_VALUE       = 15;
35const DEFAULT_SPACING_VALUE       = 10;
36const DEFAULT_BUTTON_WIDTH        = 'auto';
37
38/**
39 * Registers the block for use in Gutenberg
40 * This is done via an action so that we can disable
41 * registration if we need to.
42 */
43function register_block() {
44    /*
45     * Disable the feature on P2 blogs
46     */
47    if ( function_exists( '\WPForTeams\is_wpforteams_site' ) &&
48        \WPForTeams\is_wpforteams_site( get_current_blog_id() ) ) {
49        return;
50    }
51
52    /*
53     * Do not proceed if the newsletter feature (Subscriptions module) is not enabled
54     */
55    if ( ! ( new Modules() )->is_active( 'subscriptions' ) ) {
56        return;
57    }
58
59    require_once JETPACK__PLUGIN_DIR . '/modules/memberships/class-jetpack-memberships.php';
60
61    if ( \Jetpack_Memberships::should_enable_monetize_blocks_in_editor() ) {
62        Blocks::jetpack_register_block(
63            __DIR__,
64            array(
65                'render_callback'       => __NAMESPACE__ . '\render_block',
66                'render_email_callback' => __NAMESPACE__ . '\render_email',
67                'supports'              => array(
68                    'spacing' => array(
69                        'margin'  => true,
70                        'padding' => true,
71                    ),
72                    'align'   => array( 'wide', 'full' ),
73                ),
74            )
75        );
76    }
77
78    register_post_meta(
79        'post',
80        META_NAME_FOR_POST_LEVEL_ACCESS_SETTINGS,
81        array(
82            'show_in_rest'  => true,
83            'single'        => true,
84            'type'          => 'string',
85            'auth_callback' => function () {
86                return wp_get_current_user()->has_cap( 'edit_posts' );
87            },
88        )
89    );
90
91    register_post_meta(
92        'post',
93        META_NAME_FOR_POST_DONT_EMAIL_TO_SUBS,
94        array(
95            'default'       => false,
96            'show_in_rest'  => true,
97            'single'        => true,
98            'type'          => 'boolean',
99            'auth_callback' => function () {
100                return wp_get_current_user()->has_cap( 'edit_posts' );
101            },
102        )
103    );
104
105    register_post_meta(
106        'post',
107        META_NAME_FOR_POST_TIER_ID_SETTINGS,
108        array(
109            'show_in_rest'  => true,
110            'single'        => true,
111            'type'          => 'integer',
112            'auth_callback' => function () {
113                return wp_get_current_user()->has_cap( 'edit_posts' );
114            },
115        )
116    );
117
118    register_post_meta(
119        'post',
120        META_NAME_CONTAINS_PAYWALLED_CONTENT,
121        array(
122            'show_in_rest'  => true,
123            'single'        => true,
124            'type'          => 'boolean',
125            'auth_callback' => function () {
126                return wp_get_current_user()->has_cap( 'edit_posts' );
127            },
128        )
129    );
130
131    // This ensures Jetpack will sync this post meta to WPCOM.
132    add_filter(
133        'jetpack_sync_post_meta_whitelist',
134        function ( $allowed_meta ) {
135            return array_merge(
136                $allowed_meta,
137                array(
138                    META_NAME_FOR_POST_LEVEL_ACCESS_SETTINGS,
139                    META_NAME_FOR_POST_DONT_EMAIL_TO_SUBS,
140                    META_NAME_CONTAINS_PAYWALLED_CONTENT,
141                )
142            );
143        }
144    );
145
146    // Hide the content â€“ Priority 8 makes it run before do_blocks gets called for the content
147    add_filter( 'the_content', __NAMESPACE__ . '\add_paywall', 8 );
148
149    // Close comments on the front-end
150    add_filter( 'comments_open', __NAMESPACE__ . '\maybe_close_comments', 10, 2 );
151    add_filter( 'pings_open', __NAMESPACE__ . '\maybe_close_comments', 10, 2 );
152
153    // Hide existing comments
154    add_filter( 'get_comment', __NAMESPACE__ . '\maybe_gate_existing_comments' );
155
156    // Gate the excerpt for a post
157    add_filter( 'get_the_excerpt', __NAMESPACE__ . '\jetpack_filter_excerpt_for_newsletter', 10, 2 );
158
159    // Add a 'Newsletter' column to the Edit posts page
160    // We only display the "Newsletter" column if we have configured the paid newsletter plan
161    if ( defined( 'WP_ADMIN' ) && WP_ADMIN && Jetpack_Memberships::has_configured_plans_jetpack_recurring_payments( 'newsletter' ) ) {
162        add_action( 'manage_post_posts_columns', __NAMESPACE__ . '\register_newsletter_access_column' );
163        add_action( 'manage_post_posts_custom_column', __NAMESPACE__ . '\render_newsletter_access_rows', 10, 2 );
164        add_action( 'admin_head', __NAMESPACE__ . '\newsletter_access_column_styles' );
165    }
166
167    add_action( 'init', __NAMESPACE__ . '\maybe_prevent_super_cache_caching' );
168
169    add_action( 'wp_after_insert_post', __NAMESPACE__ . '\add_paywalled_content_post_meta', 99, 2 );
170
171    add_filter(
172        'jetpack_options_whitelist',
173        function ( $options ) {
174            $options[] = 'jetpack_subscriptions_subscribe_post_end_enabled';
175            $options[] = 'jetpack_subscriptions_subscribe_navigation_enabled';
176
177            return $options;
178        }
179    );
180
181    // If called via REST API, we need to register later in the lifecycle
182    if ( ( new Host() )->is_wpcom_platform() && ! Request::is_frontend() ) {
183        add_action(
184            'restapi_theme_init',
185            function () {
186                Jetpack_Subscription_Site::init()->handle_subscribe_block_placements();
187            }
188        );
189    } else {
190        Jetpack_Subscription_Site::init()->handle_subscribe_block_placements();
191    }
192}
193add_action( 'init', __NAMESPACE__ . '\register_block', 9 );
194
195/**
196 * Returns true when in a WP.com environment.
197 *
198 * @return boolean
199 */
200function is_wpcom() {
201    return defined( 'IS_WPCOM' ) && IS_WPCOM;
202}
203
204/**
205 * Adds a 'Newsletter' column after the 'Title' column in the post list
206 *
207 * @param array $columns An array of column names.
208 * @return array An array of column names.
209 */
210function register_newsletter_access_column( $columns ) {
211    $position   = array_search( 'title', array_keys( $columns ), true );
212    $new_column = array( NEWSLETTER_COLUMN_ID => __( 'Newsletter', 'jetpack' ) );
213    return array_merge(
214        array_slice( $columns, 0, $position + 1, true ),
215        $new_column,
216        array_slice( $columns, $position, null, true )
217    );
218}
219
220/**
221 * Add a meta to prevent publication on firehose, ES AI or Reader
222 *
223 * @param int      $post_id Post id being saved.
224 * @param \WP_Post $post Post being saved.
225 * @return void
226 */
227function add_paywalled_content_post_meta( int $post_id, \WP_Post $post ) {
228    if ( $post->post_type !== 'post' ) {
229        return;
230    }
231
232    $access_level = get_post_meta( $post_id, META_NAME_FOR_POST_LEVEL_ACCESS_SETTINGS, true );
233
234    $is_paywalled = false;
235    switch ( $access_level ) {
236        case Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_PAID_SUBSCRIBERS_ALL_TIERS:
237        case Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_PAID_SUBSCRIBERS:
238        case Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_SUBSCRIBERS:
239            $is_paywalled = true;
240    }
241    if ( $is_paywalled ) {
242        update_post_meta( $post_id, META_NAME_CONTAINS_PAYWALLED_CONTENT, $is_paywalled );
243    }
244    if ( ! $is_paywalled ) {
245        delete_post_meta( $post_id, META_NAME_CONTAINS_PAYWALLED_CONTENT );
246    }
247}
248
249/**
250 * Displays the newsletter access level.
251 *
252 * @param string $column_id The ID of the column to display.
253 * @param int    $post_id The current post ID.
254 */
255function render_newsletter_access_rows( $column_id, $post_id ) {
256    if ( NEWSLETTER_COLUMN_ID !== $column_id ) {
257        return;
258    }
259
260    $access_level = get_post_meta( $post_id, META_NAME_FOR_POST_LEVEL_ACCESS_SETTINGS, true );
261
262    switch ( $access_level ) {
263        case Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_PAID_SUBSCRIBERS_ALL_TIERS:
264            echo esc_html__( 'Paid Subscribers (all plans)', 'jetpack' );
265            break;
266        case Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_PAID_SUBSCRIBERS:
267            echo esc_html__( 'Paid Subscribers', 'jetpack' );
268            break;
269        case Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_SUBSCRIBERS:
270            echo esc_html__( 'Subscribers', 'jetpack' );
271            break;
272        case Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_EVERYBODY:
273            echo esc_html__( 'Everybody', 'jetpack' );
274            break;
275        default:
276            echo '';
277    }
278}
279
280/**
281 * Adds the Newsletter column styles
282 */
283function newsletter_access_column_styles() {
284    echo '<style id="jetpack-newsletter-newsletter-access-column"> table.fixed .column-newsletter_access { width: 10%; } </style>';
285}
286
287/**
288 * Determine the amount of folks currently subscribed to the blog, splitted out in total_subscribers, email_subscribers, social_followers & paid_subscribers.
289 *
290 * @return array containing ['value' => ['total_subscribers' => 0, 'email_subscribers' => 0, 'paid_subscribers' => 0, 'social_followers' => 0]]
291 */
292function fetch_subscriber_counts() {
293    $subs_count = 0;
294    if ( is_wpcom() ) {
295        $subs_count = array(
296            'value' => \wpcom_fetch_subs_counts( true ),
297        );
298    } else {
299        $cache_key  = 'wpcom_subscribers_totals';
300        $subs_count = get_transient( $cache_key );
301        if ( false === $subs_count || 'failed' === $subs_count['status'] ) {
302            $xml = new \Jetpack_IXR_Client();
303            $xml->query( 'jetpack.fetchSubscriberCounts' );
304
305            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.
306                $subs_count = array(
307                    'status'  => 'failed',
308                    'code'    => $xml->getErrorCode(),
309                    'message' => $xml->getErrorMessage(),
310                    'value'   => ( isset( $subs_count['value'] ) ) ? $subs_count['value'] : array(
311                        'total_subscribers' => 0,
312                        'email_subscribers' => 0,
313                        'social_followers'  => 0,
314                        'paid_subscribers'  => 0,
315                    ),
316                );
317            } else {
318                $subs_count = array(
319                    'status' => 'success',
320                    'value'  => $xml->getResponse(),
321                );
322            }
323            set_transient( $cache_key, $subs_count, 3600 ); // Try to cache the result for at least 1 hour.
324        }
325    }
326    return $subs_count;
327}
328
329/**
330 * Returns subscriber count based on include_social_followers attribute
331 *
332 * @param bool $include_social_followers Whether to include social followers in the count.
333 * @return int
334 */
335function get_subscriber_count( $include_social_followers ) {
336    $counts = fetch_subscriber_counts();
337
338    if ( $include_social_followers ) {
339        $subscriber_count = $counts['value']['total_subscribers'] + $counts['value']['social_followers'];
340    } else {
341        $subscriber_count = $counts['value']['total_subscribers'];
342    }
343    return $subscriber_count;
344}
345
346/**
347 * Returns true if the block attributes contain a value for the given key.
348 *
349 * @param array  $attributes Array containing the block attributes.
350 * @param string $key        Block attribute key.
351 *
352 * @return boolean
353 */
354function has_attribute( $attributes, $key ) {
355    return isset( $attributes[ $key ] ) && $attributes[ $key ] !== 'undefined';
356}
357
358/**
359 * Returns the value for the given attribute key, with the option of providing a default fallback value.
360 *
361 * @param array  $attributes Array containing the block attributes.
362 * @param string $key        Block attribute key.
363 * @param mixed  $default    Optional fallback value in case the key doesn't exist.
364 *
365 * @return mixed
366 */
367function get_attribute( $attributes, $key, $default = null ) {
368    return has_attribute( $attributes, $key ) ? $attributes[ $key ] : $default;
369}
370
371/**
372 * Mimics getColorClassName, getFontSizeClass and getGradientClass from @wordpress/block-editor js package.
373 *
374 * @param string $setting Setting name.
375 * @param string $value   Setting value.
376 *
377 * @return string
378 */
379function get_setting_class_name( $setting, $value ) {
380    if ( ! $setting || ! $value ) {
381        return '';
382    }
383
384    return sprintf( 'has-%s-%s', $value, $setting );
385}
386
387/**
388 * Uses block attributes to generate an array containing the classes for various block elements.
389 * Based on Jetpack_Subscriptions_Widget::do_subscription_form() which the block was originally using.
390 *
391 * @param array $attributes Array containing the block attributes.
392 *
393 * @return array
394 */
395function get_element_class_names_from_attributes( $attributes ) {
396    $text_color_class = get_setting_class_name( 'color', get_attribute( $attributes, 'textColor' ) );
397    $font_size_class  = get_setting_class_name( 'font-size', get_attribute( $attributes, 'fontSize' ) );
398    $border_class     = get_setting_class_name( 'border-color', get_attribute( $attributes, 'borderColor' ) );
399
400    $button_background_class = get_setting_class_name( 'background-color', get_attribute( $attributes, 'buttonBackgroundColor' ) );
401    $button_gradient_class   = get_setting_class_name( 'gradient-background', get_attribute( $attributes, 'buttonGradient' ) );
402
403    $email_field_background_class = get_setting_class_name( 'background-color', get_attribute( $attributes, 'emailFieldBackgroundColor' ) );
404    $email_field_gradient_class   = get_setting_class_name( 'gradient-background', get_attribute( $attributes, 'emailFieldGradient' ) );
405
406    $submit_button_classes = array_filter(
407        array(
408            'wp-block-button__link'  => true,
409            'no-border-radius'       => 0 === get_attribute( $attributes, 'borderRadius', 0 ),
410            $font_size_class         => true,
411            $border_class            => true,
412            'has-text-color'         => ! empty( $text_color_class ),
413            $text_color_class        => true,
414            'has-background'         => ! empty( $button_background_class ) || ! empty( $button_gradient_class ),
415            $button_background_class => ! empty( $button_background_class ),
416            $button_gradient_class   => ! empty( $button_gradient_class ),
417        )
418    );
419
420    $email_field_classes = array_filter(
421        array(
422            'no-border-radius'            => 0 === get_attribute( $attributes, 'borderRadius', 0 ),
423            $font_size_class              => true,
424            $border_class                 => true,
425            $email_field_background_class => true,
426            $email_field_gradient_class   => true,
427        )
428    );
429
430    $block_wrapper_classes = array_filter(
431        array(
432            'wp-block-jetpack-subscriptions__supports-newline' => true,
433            'wp-block-jetpack-subscriptions__use-newline' => (bool) get_attribute( $attributes, 'buttonOnNewLine' ),
434            'wp-block-jetpack-subscriptions__show-subs'   => (bool) get_attribute( $attributes, 'showSubscribersTotal' ),
435        )
436    );
437
438    return array(
439        'block_wrapper' => implode( ' ', array_keys( $block_wrapper_classes ) ),
440        'email_field'   => implode( ' ', array_keys( $email_field_classes ) ),
441        'submit_button' => implode( ' ', array_keys( $submit_button_classes ) ),
442    );
443}
444
445/**
446 * Checks if block style is "button only"
447 *
448 * @param string $class_name Block attribute className; multiple names are spearated by space.
449 *
450 * @return bool
451 */
452function is_button_only_style( $class_name ) {
453    if ( empty( $class_name ) ) {
454        return false;
455    }
456
457    $class_names = explode( ' ', $class_name );
458    return in_array( 'is-style-button', $class_names, true );
459}
460
461/**
462 * Uses block attributes to generate an array containing the styles for various block elements.
463 * Based on Jetpack_Subscriptions_Widget::do_subscription_form() which the block was originally using.
464 *
465 * @param array $attributes Array containing the block attributes.
466 *
467 * @return array
468 */
469function get_element_styles_from_attributes( $attributes ) {
470    $is_button_only_style = is_button_only_style( get_attribute( $attributes, 'className', '' ) );
471
472    $button_background_style = ! has_attribute( $attributes, 'buttonBackgroundColor' ) && has_attribute( $attributes, 'customButtonGradient' )
473        ? get_attribute( $attributes, 'customButtonGradient' )
474        : get_attribute( $attributes, 'customButtonBackgroundColor' );
475
476    $email_field_styles           = '';
477    $submit_button_wrapper_styles = '';
478    $submit_button_styles         = '';
479
480    if ( ! empty( $button_background_style ) ) {
481        $submit_button_styles .= sprintf( 'background: %s;', $button_background_style );
482    }
483
484    if ( has_attribute( $attributes, 'customTextColor' ) ) {
485        $submit_button_styles .= sprintf( 'color: %s;', get_attribute( $attributes, 'customTextColor' ) );
486    }
487
488    if ( has_attribute( $attributes, 'buttonWidth' ) ) {
489        $submit_button_wrapper_styles .= sprintf( 'width: %s;', get_attribute( $attributes, 'buttonWidth', DEFAULT_BUTTON_WIDTH ) );
490        $submit_button_wrapper_styles .= 'max-width: 100%;';
491
492        // Account for custom margins on inline forms.
493        $submit_button_styles .= true === get_attribute( $attributes, 'buttonOnNewLine' )
494            ? 'width: 100%;'
495            : sprintf( 'width: calc(100%% - %dpx);', get_attribute( $attributes, 'spacing', DEFAULT_SPACING_VALUE ) );
496    }
497
498    $font_size = get_attribute( $attributes, 'customFontSize', DEFAULT_FONTSIZE_VALUE );
499    $style     = sprintf( 'font-size: %s%s;', $font_size, is_numeric( $font_size ) ? 'px' : '' );
500
501    $submit_button_styles .= $style;
502    $email_field_styles   .= $style;
503
504    $padding = get_attribute( $attributes, 'padding', DEFAULT_PADDING_VALUE );
505    $style   = sprintf( 'padding: %1$dpx %2$dpx %1$dpx %2$dpx;', $padding, round( $padding * 1.5 ) );
506
507    $submit_button_styles .= $style;
508    $email_field_styles   .= $style;
509
510    if ( ! $is_button_only_style ) {
511        $button_spacing = get_attribute( $attributes, 'spacing', DEFAULT_SPACING_VALUE );
512        if ( true === get_attribute( $attributes, 'buttonOnNewLine' ) ) {
513            $submit_button_styles .= sprintf( 'margin-top: %dpx;', $button_spacing );
514        } else {
515            $submit_button_styles .= 'margin: 0; '; // Reset Safari's 2px default margin for buttons affecting input and button union
516            $submit_button_styles .= sprintf( 'margin-left: %dpx;', $button_spacing );
517        }
518    }
519
520    if ( has_attribute( $attributes, 'borderColor' ) ) {
521        $style                 = sprintf( 'border-color: %s;', get_attribute( $attributes, 'borderColor', '' ) );
522        $submit_button_styles .= $style;
523        $email_field_styles   .= $style;
524    }
525
526    $style                 = sprintf( 'border-radius: %dpx;', get_attribute( $attributes, 'borderRadius', DEFAULT_BORDER_RADIUS_VALUE ) );
527    $submit_button_styles .= $style;
528    $email_field_styles   .= $style;
529
530    $style                 = sprintf( 'border-width: %dpx;', get_attribute( $attributes, 'borderWeight', DEFAULT_BORDER_WEIGHT_VALUE ) );
531    $submit_button_styles .= $style;
532    $email_field_styles   .= $style;
533
534    if ( has_attribute( $attributes, 'customBorderColor' ) ) {
535        $style = sprintf( 'border-color: %s; border-style: solid;', get_attribute( $attributes, 'customBorderColor' ) );
536
537        $submit_button_styles .= $style;
538        $email_field_styles   .= $style;
539    }
540
541    if ( ! Request::is_frontend() ) {
542        $background_color_style = get_attribute_color( 'buttonBackgroundColor', $attributes, '#113AF5' /* default lettre theme color */ );
543        $text_color_style       = get_attribute_color( 'textColor', $attributes, '#FFFFFF' );
544        $submit_button_styles  .= sprintf( ' background-color: %s; color: %s;', $background_color_style, $text_color_style );
545    }
546
547    return array(
548        'email_field'           => $email_field_styles,
549        'submit_button'         => $submit_button_styles,
550        'submit_button_wrapper' => $submit_button_wrapper_styles,
551    );
552}
553
554/**
555 * Retrieve the resolved color for a given attribute.
556 *
557 * @param string $attribute_name The name of the attribute to resolve.
558 * @param array  $attributes     An array of all attributes.
559 * @param string $default_color  A fallback color in case no color can be resolved.
560 *
561 * @return string Returns the resolved color or the default color if no color is found.
562 */
563function get_attribute_color( $attribute_name, $attributes, $default_color ) {
564    if ( has_attribute( $attributes, $attribute_name ) ) {
565        $color_slug     = get_attribute( $attributes, $attribute_name );
566        $resolved_color = get_color_from_slug( $color_slug );
567
568        if ( $resolved_color ) {
569            return $resolved_color;
570        }
571    }
572
573    return get_global_style_color( $attribute_name, $default_color );
574}
575
576/**
577 * Retrieve the global style color based on a provided style key.
578 *
579 * @param string $style_key     The key for the desired style.
580 * @param string $default_color A fallback color in case the global style is not set.
581 *
582 * @return string Returns the color defined in global styles or the default color if not defined.
583 */
584function get_global_style_color( $style_key, $default_color ) {
585    $global_styles = wp_get_global_styles(
586        array( 'color' ),
587        array(
588            'block_name' => 'core/button',
589            'transforms' => array( 'resolve-variables' ),
590        )
591    );
592
593    if ( isset( $global_styles[ $style_key ] ) ) {
594        return $global_styles[ $style_key ];
595    }
596
597    return $default_color;
598}
599
600/**
601 * Convert a color slug into its corresponding color value.
602 *
603 * @param string $slug The slug representation of the color.
604 *
605 * @return string|null Returns the color value if found, or null otherwise.
606 */
607function get_color_from_slug( $slug ) {
608    $color_palettes = wp_get_global_settings( array( 'color', 'palette' ) );
609
610    if ( ! is_array( $color_palettes ) ) {
611        return null;
612    }
613
614    foreach ( $color_palettes as $palette ) {
615        if ( is_array( $palette ) ) {
616            foreach ( $palette as $color ) {
617                if ( isset( $color['slug'] ) && $color['slug'] === $slug && isset( $color['color'] ) ) {
618                    return $color['color'];
619                }
620            }
621        }
622    }
623
624    return null;
625}
626
627/**
628 * Is the Jetpack_Memberships class loaded.
629 */
630function is_jetpack_memberships_loaded(): bool {
631    return class_exists( '\Jetpack_Memberships' );
632}
633
634/**
635 * Subscriptions block render callback.
636 *
637 * @param array $attributes Array containing the block attributes.
638 *
639 * @return string
640 */
641function render_block( $attributes ) {
642    // If the Subscriptions module is not active, don't render the block.
643    if ( ! ( new Modules() )->is_active( 'subscriptions' ) ) {
644        return '';
645    }
646
647    if ( is_jetpack_memberships_loaded() ) {
648        // We only want the sites that have newsletter feature enabled to be graced by this JavaScript.
649        Jetpack_Gutenberg::load_assets_as_required( __DIR__ );
650    } else {
651        Jetpack_Gutenberg::load_styles_as_required( FEATURE_NAME );
652    }
653
654    if ( ! class_exists( 'Jetpack_Subscriptions_Widget' ) ) {
655        return '';
656    }
657
658    // Prefill the email field with the current user's email if they are logged in via Memberships premium content token
659    $subscribe_email = Jetpack_Memberships::get_current_user_email();
660
661    // If no email, then prefill the email field with the current user's email if they are logged in
662    if ( empty( $subscribe_email ) ) {
663        $current_user = wp_get_current_user();
664        if ( ! empty( $current_user->user_email ) ) {
665            $subscribe_email = $current_user->user_email;
666        }
667    }
668
669    // The block is using the Jetpack_Subscriptions_Widget backend, hence the need to increase the instance count.
670    ++Jetpack_Subscriptions_Widget::$instance_count;
671
672    $classes = get_element_class_names_from_attributes( $attributes );
673    $styles  = get_element_styles_from_attributes( $attributes );
674
675    // The default value was previously "true" in block.json. We don't want to rely setting "default" in block.json to falsy,
676    // because it would change the setting for previously saved blocks. Block editor doesn't store default values in attributes at all.
677    // Hence users without this set will still get social counts included in the subscriber counter.
678    // Lowering the subscriber count on their behalf with code change would be controversial.
679    // We want to disencourage including social count as it's misleading.
680    $include_social_followers = isset( $attributes['includeSocialFollowers'] ) ? (bool) get_attribute( $attributes, 'includeSocialFollowers' ) : true;
681
682    $data = array(
683        'widget_id'                         => Jetpack_Subscriptions_Widget::$instance_count,
684        'subscribe_email'                   => $subscribe_email,
685        'is_paid_subscriber'                => get_attribute( $attributes, 'isPaidSubscriber', false ),
686        'wrapper_attributes'                => get_block_wrapper_attributes(
687            array(
688                'class' => $classes['block_wrapper'],
689            )
690        ),
691        'subscribe_placeholder'             => get_attribute( $attributes, 'subscribePlaceholder', __( 'Type your email…', 'jetpack' ) ),
692        'submit_button_text'                => get_attribute( $attributes, 'submitButtonText', __( 'Subscribe', 'jetpack' ) ),
693        'submit_button_text_subscribed'     => get_attribute( $attributes, 'submitButtonTextSubscribed', __( 'Subscribed', 'jetpack' ) ),
694        'submit_button_text_upgrade'        => get_attribute( $attributes, 'submitButtonTextUpgrade', __( 'Upgrade subscription', 'jetpack' ) ),
695        'success_message'                   => get_attribute(
696            $attributes,
697            'successMessage',
698            esc_html__( "Success! An email was just sent to confirm your subscription. Please find the email now and click 'Confirm' to start subscribing.", 'jetpack' )
699        ),
700        'show_subscribers_total'            => (bool) get_attribute( $attributes, 'showSubscribersTotal' ),
701        'subscribers_total'                 => get_attribute( $attributes, 'showSubscribersTotal' ) ? get_subscriber_count( $include_social_followers ) : 0,
702        'referer'                           => esc_url_raw(
703            ( is_ssl() ? 'https' : 'http' ) . '://' . ( isset( $_SERVER['HTTP_HOST'] ) ? wp_unslash( $_SERVER['HTTP_HOST'] ) : '' ) .
704            ( isset( $_SERVER['REQUEST_URI'] ) ? wp_unslash( $_SERVER['REQUEST_URI'] ) : '' )
705        ),
706        'source'                            => 'subscribe-block',
707        'app_source'                        => get_attribute( $attributes, 'appSource', null ),
708        'class_name'                        => get_attribute( $attributes, 'className' ),
709        'selected_newsletter_categories'    => get_attribute( $attributes, 'selectedNewsletterCategoryIds', array() ),
710        'preselected_newsletter_categories' => get_attribute( $attributes, 'preselectNewsletterCategories', false ),
711    );
712
713    // Only render the email version in non-frontend contexts.
714    if ( is_feed() || wp_is_xml_request() ||
715        ( defined( 'REST_REQUEST' ) && REST_REQUEST && ! wp_is_json_request() ) ||
716        ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST ) ||
717        ( defined( 'WP_CLI' ) && WP_CLI ) ||
718        wp_is_jsonp_request() ) {
719        return render_for_email( $data, $styles );
720    }
721
722    return render_for_website( $data, $classes, $styles );
723}
724
725/**
726 *  Get the post access level for the current post. Defaults to 'everybody' if the query is not for a single post
727 *
728 * @return string the actual post access level (see projects/plugins/jetpack/extensions/blocks/subscriptions/constants.js for the values).
729 */
730function get_post_access_level_for_current_post() {
731    if ( ! is_singular() ) {
732        // There is no "actual" current post.
733        return Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_EVERYBODY;
734    }
735
736    return Jetpack_Memberships::get_post_access_level();
737}
738
739/**
740 * Renders the subscriptions block at the site.
741 *
742 * @param array $data    Array containing block view data.
743 * @param array $classes Array containing the classes for different block elements.
744 * @param array $styles  Array containing the styles for different block elements.
745 *
746 * @return string
747 */
748function render_for_website( $data, $classes, $styles ) {
749    $lang                 = get_locale();
750    $blog_id              = \Jetpack_Options::get_option( 'id' );
751    $widget_id_suffix     = Jetpack_Subscriptions_Widget::$instance_count > 1 ? '-' . Jetpack_Subscriptions_Widget::$instance_count : '';
752    $form_id              = 'subscribe-blog' . $widget_id_suffix;
753    $form_url             = 'https://wordpress.com/email-subscriptions';
754    $post_access_level    = get_post_access_level_for_current_post();
755    $is_button_only_style = ! empty( $data['class_name'] ) ? is_button_only_style( $data['class_name'] ) : false;
756
757    // Post ID is used for pulling post-specific paid status, and returning to the right post after confirming subscription
758    $post_id = null;
759    if ( in_the_loop() ) {
760        $post_id = get_the_ID();
761    } elseif ( is_singular( 'post' ) || is_page() ) {
762        $post_id = get_queried_object_id();
763    } else {
764        $post_id = get_option( 'page_on_front' );
765    }
766
767    $subscribe_field_id    = apply_filters( 'subscribe_field_id', 'subscribe-field' . $widget_id_suffix, $data['widget_id'] );
768    $tier_id               = get_post_meta( $post_id, META_NAME_FOR_POST_TIER_ID_SETTINGS, true );
769    $is_subscribed         = Jetpack_Memberships::is_current_user_subscribed();
770    $button_text           = get_submit_button_text( $data );
771    $show_subscriber_count = $data['show_subscribers_total'] && $data['subscribers_total'] && ! $is_subscribed;
772
773    ob_start();
774
775    Jetpack_Subscriptions_Widget::render_widget_status_messages(
776        array(
777            'success_message' => $data['success_message'],
778        )
779    );
780    ?>
781    <div <?php echo wp_kses_data( $data['wrapper_attributes'] ); ?>>
782        <div class="wp-block-jetpack-subscriptions__container<?php echo ! $is_subscribed ? ' is-not-subscriber' : ''; ?>">
783            <?php if ( is_top_subscription() ) : ?>
784                <p id="subscribe-submit" class="is-link"
785                    <?php if ( ! empty( $styles['submit_button_wrapper'] ) ) : ?>
786                        style="<?php echo esc_attr( $styles['submit_button_wrapper'] ); ?>"
787                    <?php endif; ?>
788                >
789                        <a
790                            href="<?php echo esc_url( 'https://wordpress.com/reader/site/subscription/' . $blog_id ); ?>"
791                            <?php if ( ! empty( $classes['submit_button'] ) ) : ?>
792                                class="<?php echo esc_attr( $classes['submit_button'] ); ?>"
793                            <?php endif; ?>
794                            <?php if ( ! empty( $styles['submit_button'] ) ) : ?>
795                                style="<?php echo esc_attr( $styles['submit_button'] ); ?>"
796                            <?php endif; ?>
797                        >
798                            <?php echo sanitize_submit_text( $button_text ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
799                        </a>
800                </p>
801            <?php else : ?>
802                <form
803                    action="<?php echo esc_url( $form_url ); ?>"
804                    method="post"
805                    accept-charset="utf-8"
806                    data-blog="<?php echo esc_attr( $blog_id ); ?>"
807                    data-post_access_level="<?php echo esc_attr( $post_access_level ); ?>"
808                    data-subscriber_email="<?php echo esc_attr( $data['subscribe_email'] ); ?>"
809                    id="<?php echo esc_attr( $form_id ); ?>"
810                >
811                    <div class="wp-block-jetpack-subscriptions__form-elements">
812                        <?php if ( ! $is_subscribed && ! $is_button_only_style ) : ?>
813                        <p id="subscribe-email">
814                            <label
815                                id="<?php echo esc_attr( $subscribe_field_id . '-label' ); ?>"
816                                for="<?php echo esc_attr( $subscribe_field_id ); ?>"
817                                class="screen-reader-text"
818                            >
819                                <?php echo esc_html( $data['subscribe_placeholder'] ); ?>
820                            </label>
821                            <?php
822                            printf(
823                                '<input
824                                    required="required"
825                                    type="email"
826                                    name="email"
827                                    autocomplete="email"
828                                    %1$s
829                                    style="%2$s"
830                                    placeholder="%3$s"
831                                    value="%4$s"
832                                    id="%5$s"
833                                    %6$s
834                                />',
835                                ( ! empty( $classes['email_field'] )
836                                    ? 'class="' . esc_attr( $classes['email_field'] ) . '"'
837                                    : ''
838                                ),
839                                ( ! empty( $styles['email_field'] )
840                                    ? esc_attr( $styles['email_field'] )
841                                    : 'width: 95%; padding: 1px 10px'
842                                ),
843                                esc_attr( $data['subscribe_placeholder'] ),
844                                esc_attr( $data['subscribe_email'] ),
845                                esc_attr( $subscribe_field_id ),
846                                ( ! empty( $data['subscribe_email'] )
847                                    ? 'disabled title="' . esc_attr__( "You're logged in with this email", 'jetpack' ) . '"'
848                                    : 'title="' . esc_attr__( 'Please fill in this field.', 'jetpack' ) . '"'
849                                )
850                            );
851                            ?>
852                        </p>
853                        <?php endif; ?>
854                        <p id="subscribe-submit"
855                            <?php if ( ! empty( $styles['submit_button_wrapper'] ) ) : ?>
856                                style="<?php echo esc_attr( $styles['submit_button_wrapper'] ); ?>"
857                            <?php endif; ?>
858                        >
859                            <input type="hidden" name="action" value="subscribe"/>
860                            <input type="hidden" name="blog_id" value="<?php echo (int) $blog_id; ?>"/>
861                            <input type="hidden" name="source" value="<?php echo esc_url( $data['referer'] ); ?>"/>
862                            <input type="hidden" name="sub-type" value="<?php echo esc_attr( $data['source'] ); ?>"/>
863                            <input type="hidden" name="app_source" value="<?php echo esc_attr( $data['app_source'] ); ?>"/>
864                            <input type="hidden" name="redirect_fragment" value="<?php echo esc_attr( $form_id ); ?>"/>
865                            <input type="hidden" name="lang" value="<?php echo esc_attr( $lang ); ?>"/>
866                            <?php
867                            wp_nonce_field( 'blogsub_subscribe_' . $blog_id );
868
869                            if ( ! empty( $post_id ) ) {
870                                echo '<input type="hidden" name="post_id" value="' . esc_attr( $post_id ) . '"/>';
871                            }
872
873                            if ( ! empty( $tier_id ) ) {
874                                echo '<input type="hidden" name="tier_id" value="' . esc_attr( $tier_id ) . '"/>';
875                            }
876
877                            if ( $data['preselected_newsletter_categories'] && ! empty( $data['selected_newsletter_categories'] ) ) {
878                                echo '<input type="hidden" name="selected_newsletter_categories" value="' . esc_attr( implode( ',', $data['selected_newsletter_categories'] ) ) . '"/>';
879                            }
880                            ?>
881                            <button type="submit"
882                                <?php if ( ! empty( $classes['submit_button'] ) ) : ?>
883                                    class="<?php echo esc_attr( $classes['submit_button'] ); ?>"
884                                <?php endif; ?>
885                                <?php if ( ! empty( $styles['submit_button'] ) ) : ?>
886                                    style="<?php echo esc_attr( $styles['submit_button'] ); ?>"
887                                <?php endif; ?>
888                                name="jetpack_subscriptions_widget"
889                            >
890                                <?php echo sanitize_submit_text( $button_text ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
891                            </button>
892                        </p>
893                    </div>
894                </form>
895            <?php endif; ?>
896            <?php if ( $show_subscriber_count ) : ?>
897                <div class="wp-block-jetpack-subscriptions__subscount">
898                    <?php echo esc_html( Jetpack_Memberships::get_join_others_text( $data['subscribers_total'] ) ); ?>
899                </div>
900            <?php endif; ?>
901        </div>
902    </div>
903    <?php
904    return ob_get_clean();
905}
906
907/**
908 * Renders the email version of the subscriptions block.
909 *
910 * @param array $data    Array containing block view data.
911 * @param array $styles  Array containing the styles for different block elements.
912 *
913 * @return string
914 */
915function render_for_email( $data, $styles ) {
916    $submit_button_wrapper_style = ! empty( $styles['submit_button_wrapper'] ) ? 'style="' . esc_attr( $styles['submit_button_wrapper'] ) . '"' : '';
917    $button_text                 = get_submit_button_text( $data );
918
919    $html = '<div ' . wp_kses_data( $data['wrapper_attributes'] ) . '>
920        <div>
921            <div>
922                <div>
923                    <p ' . $submit_button_wrapper_style . '>
924                        <a href="' . esc_url( get_post_permalink() ) . '" style="' . esc_attr( $styles['submit_button'] ) . ' text-decoration: none; white-space: nowrap; margin-left: 0">' . sanitize_submit_text( $button_text ) . '</a>
925                    </p>
926                </div>
927            </div>
928        </div>
929    </div>';
930
931    return $html;
932}
933
934/**
935 * WooCommerce Email Editor render callback for the subscriptions block.
936 *
937 * @param string $block_content The block content.
938 * @param array  $parsed_block  The parsed block data.
939 * @param object $rendering_context The email rendering context.
940 *
941 * @return string
942 */
943function render_email( $block_content, array $parsed_block, $rendering_context ) {
944    if ( ! isset( $parsed_block['attrs'] ) || ! is_array( $parsed_block['attrs'] ) || ! function_exists( '\Automattic\Jetpack\Extensions\Button\render_email' ) || ! class_exists( '\Automattic\WooCommerce\EmailEditor\Integrations\Core\Renderer\Blocks\Button' ) ) {
945        return '';
946    }
947
948    // Map subscription block attributes to button block attributes
949    $button_attributes = array(
950        'text'                  => ! empty( $parsed_block['attrs']['submitButtonText'] ) ? sanitize_text_field( $parsed_block['attrs']['submitButtonText'] ) : __( 'Subscribe', 'jetpack' ),
951        'url'                   => get_post_permalink(),
952        'element'               => 'a',
953        // Map background colors
954        'backgroundColor'       => $parsed_block['attrs']['buttonBackgroundColor'] ?? null,
955        'customBackgroundColor' => $parsed_block['attrs']['customButtonBackgroundColor'] ?? null,
956        // Map text colors
957        'textColor'             => $parsed_block['attrs']['textColor'] ?? null,
958        'customTextColor'       => $parsed_block['attrs']['customTextColor'] ?? null,
959        // Map borders
960        'borderRadius'          => $parsed_block['attrs']['borderRadius'] ?? 0,
961        'borderWeight'          => $parsed_block['attrs']['borderWeight'] ?? 1,
962        'borderColor'           => $parsed_block['attrs']['borderColor'] ?? null,
963        'customBorderColor'     => $parsed_block['attrs']['customBorderColor'] ?? null,
964        // Map typography
965        'fontSize'              => $parsed_block['attrs']['fontSize'] ?? null,
966        'customFontSize'        => $parsed_block['attrs']['customFontSize'] ?? null,
967        // Map spacing
968        'padding'               => $parsed_block['attrs']['padding'] ?? null,
969    );
970
971    // Create a mock button block structure
972    $button_parsed_block = array(
973        'attrs'       => $button_attributes,
974        'email_attrs' => $parsed_block['email_attrs'] ?? array(),
975    );
976
977    // Call the Jetpack button's email rendering
978    return \Automattic\Jetpack\Extensions\Button\render_email(
979        $block_content,
980        $button_parsed_block,
981        $rendering_context
982    );
983}
984
985/**
986 * Filter excerpts looking for subscription data.
987 *
988 * @param string   $excerpt The extrapolated excerpt string.
989 * @param \WP_Post $post    The current post being processed (in `get_the_excerpt`).
990 *
991 * @return mixed
992 */
993function jetpack_filter_excerpt_for_newsletter( $excerpt, $post = null ) {
994    // The blogmagazine theme is overriding WP core `get_the_excerpt` filter and only passing the excerpt
995    // TODO: Until this is fixed, return the excerpt without gating. See https://github.com/Automattic/jetpack/pull/28102#issuecomment-1369161116
996    if ( $post instanceof \WP_Post && has_block( 'jetpack/subscriptions', $post ) ) {
997        $excerpt .= '<br/><br/>';
998        $excerpt .= sprintf(
999            // translators: %s is the permalink url to the current post.
1000            __( "<p><a href='%s'>View post</a> to subscribe to the site's newsletter.</p>", 'jetpack' ),
1001            get_post_permalink()
1002        );
1003    }
1004
1005    return $excerpt;
1006}
1007
1008/**
1009 * Gate access to posts
1010 *
1011 * @param string $the_content Post content.
1012 *
1013 * @return string
1014 */
1015function add_paywall( $the_content ) {
1016    require_once JETPACK__PLUGIN_DIR . 'modules/memberships/class-jetpack-memberships.php';
1017
1018    $post_access_level = Jetpack_Memberships::get_post_access_level();
1019
1020    if ( Jetpack_Memberships::user_can_view_post() ) {
1021        if ( $post_access_level !== Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_EVERYBODY ) {
1022            do_action(
1023                'earn_track_paywalled_post_view',
1024                array(
1025                    'post_id' => get_the_ID(),
1026                )
1027            );
1028        }
1029        return $the_content;
1030    }
1031
1032    $paywalled_content = get_paywall_content();
1033
1034    if ( has_block( \Automattic\Jetpack\Extensions\Paywall\BLOCK_NAME ) ) {
1035        if ( strpos( $the_content, \Automattic\Jetpack\Extensions\Paywall\BLOCK_HTML ) ) {
1036            return strstr( $the_content, \Automattic\Jetpack\Extensions\Paywall\BLOCK_HTML, true ) . $paywalled_content;
1037        }
1038        // WordPress generates excerpts by either rendering or stripping blocks before invoking the `the_content` filter.
1039        // In the context of generating an excerpt, the Paywall block specifically renders THE_EXCERPT_BLOCK.
1040        if ( strpos( $the_content, \Automattic\Jetpack\Extensions\Paywall\THE_EXCERPT_BLOCK ) ) {
1041            return strstr( $the_content, \Automattic\Jetpack\Extensions\Paywall\THE_EXCERPT_BLOCK, true );
1042        }
1043    }
1044
1045    return $paywalled_content;
1046}
1047
1048/**
1049 * Gate access to comments. We want to close comments on private sites.
1050 *
1051 * @param bool $default_comments_open Default state of the comments_open filter.
1052 * @param int  $post_id Current post id.
1053 *
1054 * @return bool
1055 */
1056function maybe_close_comments( $default_comments_open, $post_id ) {
1057    if ( ! $default_comments_open || ! $post_id ) {
1058        return $default_comments_open;
1059    }
1060
1061    require_once JETPACK__PLUGIN_DIR . 'modules/memberships/class-jetpack-memberships.php';
1062    return Jetpack_Memberships::user_can_view_post();
1063}
1064
1065/**
1066 * Gate access to existing comments
1067 *
1068 * @param string $comment The comment.
1069 *
1070 * @return string
1071 */
1072function maybe_gate_existing_comments( $comment ) {
1073    if ( empty( $comment ) ) {
1074        return $comment;
1075    }
1076
1077    require_once JETPACK__PLUGIN_DIR . 'modules/memberships/class-jetpack-memberships.php';
1078    if ( Jetpack_Memberships::user_can_view_post() ) {
1079        return $comment;
1080    }
1081    return '';
1082}
1083
1084/**
1085 * Is the Jetpack_Token_Subscription_Service class loaded
1086 *
1087 * @return bool
1088 */
1089function is_jetpack_token_subscription_service_loaded(): bool {
1090    return class_exists( 'Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\Jetpack_Token_Subscription_Service' );
1091}
1092
1093/**
1094 * Adds support for WP Super cache and Boost cache
1095 */
1096function maybe_prevent_super_cache_caching() {
1097    // Prevents cached page to be served if the Membership cookie is present
1098    if ( is_jetpack_token_subscription_service_loaded() ) {
1099        do_action( 'wpsc_add_cookie', Jetpack_Token_Subscription_Service::JWT_AUTH_TOKEN_COOKIE_NAME );
1100    }
1101
1102    if ( is_user_auth() ) {
1103        // Do not cache the page if user is auth with Membership token
1104        if ( ! defined( 'DONOTCACHEPAGE' ) ) {
1105            define( 'DONOTCACHEPAGE', true );
1106        }
1107    }
1108}
1109
1110/**
1111 * Returns paywall content blocks
1112 *
1113 * @return string
1114 */
1115function get_paywall_content() {
1116    if ( Jetpack_Memberships::user_is_pending_subscriber() ) {
1117        return get_paywall_blocks_subscribe_pending();
1118    }
1119    if ( doing_filter( 'get_the_excerpt' ) ) {
1120        return '';
1121    }
1122    return get_paywall_blocks();
1123}
1124
1125/**
1126 * Returns the current URL.
1127 *
1128 * TODO: Copied from https://github.com/Automattic/jetpack/blob/bb885061dc3ee7a80a78a5f0116ab3fcebfddb09/projects/packages/boost-core/src/lib/class-url.php#L39
1129 * TODO: Move to a shared package
1130 *
1131 * @return string
1132 */
1133function get_current_url() {
1134    // Fallback to the site URL if we're unable to determine the URL from $_SERVER global.
1135    $current_url = site_url();
1136
1137    if ( isset( $_SERVER ) && is_array( $_SERVER ) ) {
1138        // phpcs:disable WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Sanitization happens at the end
1139        $scheme = isset( $_SERVER['HTTPS'] ) && 'on' === $_SERVER['HTTPS'] ? 'https' : 'http';
1140        $host   = ! empty( $_SERVER['HTTP_HOST'] ) ? wp_unslash( $_SERVER['HTTP_HOST'] ) : null;
1141        $path   = ! empty( $_SERVER['REQUEST_URI'] ) ? wp_unslash( $_SERVER['REQUEST_URI'] ) : '';
1142
1143        // Support for local plugin development and testing using ngrok.
1144        if ( ! empty( $_SERVER['HTTP_X_ORIGINAL_HOST'] ) && str_contains( $_SERVER['HTTP_X_ORIGINAL_HOST'], 'ngrok.io' ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput -- This is validating.
1145            $host = wp_unslash( $_SERVER['HTTP_X_ORIGINAL_HOST'] );
1146        }
1147        // phpcs:enable WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
1148
1149        if ( $host ) {
1150            $current_url = esc_url_raw( sprintf( '%s://%s%s', $scheme, $host, $path ) );
1151        }
1152    }
1153
1154    return $current_url;
1155}
1156
1157/**
1158 * Get the submit button text based on the subscription status.
1159 *
1160 * @param array $data Array containing block view data.
1161 *
1162 * @return string
1163 */
1164function get_submit_button_text( $data ) {
1165    if ( ! Jetpack_Memberships::is_current_user_subscribed() ) {
1166        return $data['submit_button_text'];
1167    }
1168    if ( ! Jetpack_Memberships::user_can_view_post() ) {
1169        return $data['submit_button_text_upgrade'];
1170    }
1171    return '✓ ' . $data['submit_button_text_subscribed'];
1172}
1173
1174/**
1175 * Returns true if there are no more tiers to upgrade to.
1176 *
1177 * @return boolean
1178 */
1179function is_top_subscription() {
1180    if ( ! Jetpack_Memberships::is_current_user_subscribed() ) {
1181        return false;
1182    }
1183    if ( ! Jetpack_Memberships::user_can_view_post() ) {
1184        return false;
1185    }
1186    return true;
1187}
1188
1189/**
1190 * Sanitize the submit button text.
1191 *
1192 * @param string $text String containing the submit button text.
1193 *
1194 * @return string
1195 */
1196function sanitize_submit_text( $text ) {
1197    return wp_kses(
1198        html_entity_decode( $text, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ),
1199        Jetpack_Subscriptions_Widget::$allowed_html_tags_for_submit_button
1200    );
1201}
1202
1203/**
1204 * Returns paywall content blocks if user is not authenticated
1205 *
1206 * @return string
1207 */
1208function get_paywall_blocks() {
1209    $custom_paywall = apply_filters( 'jetpack_custom_paywall_blocks', false );
1210    if ( ! empty( $custom_paywall ) ) {
1211        return $custom_paywall;
1212    }
1213
1214    if ( ! Request::is_frontend() ) { // emails
1215        return get_paywall_simple();
1216    }
1217
1218    require_once JETPACK__PLUGIN_DIR . 'modules/memberships/class-jetpack-memberships.php';
1219    $is_paid_post       = is_paid_post();
1220    $is_paid_subscriber = Jetpack_Memberships::user_is_paid_subscriber();
1221
1222    $access_heading = $is_paid_subscriber
1223        ? esc_html__( 'Upgrade to continue reading', 'jetpack' )
1224        : esc_html__( 'Subscribe to continue reading', 'jetpack' );
1225
1226    $subscribe_text = $is_paid_post
1227        // translators: %s is the name of the site.
1228        ? (
1229            $is_paid_subscriber
1230                ? esc_html__( 'Upgrade to get access to the rest of this post and other exclusive content.', 'jetpack' )
1231                : esc_html__( 'Become a paid subscriber to get access to the rest of this post and other exclusive content.', 'jetpack' )
1232        )
1233        // translators: %s is the name of the site.
1234        : esc_html__( 'Subscribe to get access to the rest of this post and other subscriber-only content.', 'jetpack' );
1235
1236    $login_block = '';
1237
1238    if ( is_user_auth() ) {
1239        if ( ( new Host() )->is_wpcom_simple() ) {
1240            // We cannot use wpcom_logmein_redirect_url since it returns redirect URL when user is already logged in.
1241            $login_link           = add_query_arg(
1242                array(
1243                    'redirect_to' => rawurlencode( get_current_url() ),
1244                    'blog_id'     => get_current_blog_id(),
1245                ),
1246                'https://wordpress.com/log-in/link'
1247            );
1248            $switch_accounts_link = wp_logout_url( $login_link );
1249            $login_block          = '<!-- wp:paragraph {"align":"center","style":{"typography":{"fontSize":"14px"}}} -->
1250<p class="has-text-align-center" style="font-size:14px">
1251    <a href="' . $switch_accounts_link . '">' . __( 'Switch accounts', 'jetpack' ) . '</a>
1252</p>
1253<!-- /wp:paragraph -->';
1254        }
1255    } else {
1256        $access_question = $is_paid_post ? esc_html__( 'Already a paid subscriber?', 'jetpack' ) : esc_html__( 'Already a subscriber?', 'jetpack' );
1257        $login_block     = '<!-- wp:group {"style":{"typography":{"fontSize":"14px"}},"layout":{"type":"flex","justifyContent":"center"}} -->
1258<div class="wp-block-group" style="font-size:14px">
1259    <!-- wp:jetpack/subscriber-login {"logInLabel":"' . $access_question . '"} /-->
1260</div>
1261<!-- /wp:group -->';
1262    }
1263
1264    $lock_svg = plugins_url( 'images/lock-paywall.svg', JETPACK__PLUGIN_FILE );
1265
1266    return '
1267<!-- wp:group {"style":{"border":{"width":"1px","radius":"4px"},"spacing":{"padding":{"top":"32px","bottom":"32px","left":"32px","right":"32px"}}},"borderColor":"primary","className":"jetpack-subscribe-paywall","layout":{"type":"constrained","contentSize":"400px"}} -->
1268<div class="wp-block-group jetpack-subscribe-paywall has-border-color has-primary-border-color" style="border-width:1px;border-radius:4px;padding-top:32px;padding-right:32px;padding-bottom:32px;padding-left:32px">
1269<!-- wp:image {"align":"center","width":24,"height":24,"sizeSlug":"large","linkDestination":"none"} -->
1270<figure class="wp-block-image aligncenter size-large is-resized"><img src="' . $lock_svg . '" alt="" width="24" height="24"/></figure>
1271<!-- /wp:image -->
1272
1273<!-- wp:heading {"textAlign":"center","style":{"typography":{"fontStyle":"normal","fontWeight":"600","fontSize":"24px"},"layout":{"selfStretch":"fit"}}} -->
1274<h2 class="wp-block-heading has-text-align-center" style="font-size:24px;font-style:normal;font-weight:600">' . $access_heading . '</h2>
1275<!-- /wp:heading -->
1276
1277<!-- wp:paragraph {"align":"center","style":{"typography":{"fontSize":"14px"},"spacing":{"margin":{"top":"10px","bottom":"10px"}}}} -->
1278<p class="has-text-align-center" style="margin-top:10px;margin-bottom:10px;font-size:14px">' . $subscribe_text . '</p>
1279<!-- /wp:paragraph -->
1280
1281<!-- wp:jetpack/subscriptions {"borderRadius":50,"borderColor":"primary","className":"is-style-compact","isPaidSubscriber":' . ( $is_paid_subscriber ? 'true' : 'false' ) . '} /-->
1282' . $login_block . '
1283</div>
1284<!-- /wp:group -->
1285';
1286}
1287
1288/**
1289 * Returns true if user is auth for subscriptions check, otherwise returns false.
1290 *
1291 * @return bool
1292 */
1293function is_user_auth(): bool {
1294    if ( ( new Host() )->is_wpcom_simple() && is_user_logged_in() ) {
1295        return true;
1296    }
1297    if ( current_user_can( 'manage_options' ) ) {
1298        return true;
1299    }
1300
1301    if ( is_jetpack_token_subscription_service_loaded() ) {
1302        if ( Jetpack_Token_Subscription_Service::has_token_from_cookie() ) {
1303            return true;
1304        }
1305    }
1306    return false;
1307}
1308
1309/**
1310 * Returns `true` if the post is a paid post.
1311 */
1312function is_paid_post(): bool {
1313    require_once JETPACK__PLUGIN_DIR . 'modules/memberships/class-jetpack-memberships.php';
1314
1315    // Make sure Stripe is connected and the post is marked for paid subscribers.
1316    if ( Jetpack_Memberships::has_connected_account() && is_jetpack_token_subscription_service_loaded() ) {
1317        return Jetpack_Memberships::get_post_access_level() === Jetpack_Token_Subscription_Service::POST_ACCESS_LEVEL_PAID_SUBSCRIBERS;
1318    }
1319
1320    return false;
1321}
1322
1323/**
1324 * Returns true if the post is a subscribers post.
1325 */
1326function is_subscribers_post(): bool {
1327    require_once JETPACK__PLUGIN_DIR . 'modules/memberships/class-jetpack-memberships.php';
1328
1329    // Make sure Stripe is connected and the post is marked for paid subscribers.
1330    if ( Jetpack_Memberships::has_connected_account() && is_jetpack_token_subscription_service_loaded() ) {
1331        return Jetpack_Memberships::get_post_access_level() === Jetpack_Token_Subscription_Service::POST_ACCESS_LEVEL_SUBSCRIBERS;
1332    }
1333
1334    return false;
1335}
1336
1337/**
1338 * Returns paywall content blocks when email confirmation is pending
1339 *
1340 * @return string
1341 */
1342function get_paywall_blocks_subscribe_pending() {
1343    $subscribe_email = Jetpack_Memberships::get_current_user_email();
1344
1345    /** This filter is documented in \Automattic\Jetpack\Forms\ContactForm\Contact_Form */
1346    if ( is_wpcom() || false !== apply_filters( 'jetpack_auto_fill_logged_in_user', false ) ) {
1347        $current_user = wp_get_current_user();
1348        if ( ! empty( $current_user->user_email ) ) {
1349            $subscribe_email = $current_user->user_email;
1350        }
1351    }
1352
1353    $access_heading = esc_html__( 'Confirm your subscription to continue reading', 'jetpack' );
1354
1355    /* translators: %s: email address */
1356    $subscribe_text = sprintf( esc_html__( 'Head to your inbox and confirm your email address %s.', 'jetpack' ), $subscribe_email );
1357
1358    $lock_svg = plugins_url( 'images/lock-paywall.svg', JETPACK__PLUGIN_FILE );
1359
1360    return '
1361<!-- wp:group {"style":{"border":{"width":"1px","radius":"4px"},"spacing":{"padding":{"top":"32px","bottom":"32px","left":"32px","right":"32px"}}},"borderColor":"primary","className":"jetpack-subscribe-paywall","layout":{"type":"constrained","contentSize":"400px"}} -->
1362<div class="wp-block-group jetpack-subscribe-paywall has-border-color has-primary-border-color" style="border-width:1px;border-radius:4px;padding-top:32px;padding-right:32px;padding-bottom:32px;padding-left:32px">
1363<!-- wp:image {"align":"center","width":24,"height":24,"sizeSlug":"large","linkDestination":"none"} -->
1364<figure class="wp-block-image aligncenter size-large is-resized"><img src="' . $lock_svg . '" alt="" width="24" height="24"/></figure>
1365<!-- /wp:image -->
1366
1367<!-- wp:heading {"textAlign":"center","style":{"typography":{"fontStyle":"normal","fontWeight":"600","fontSize":"24px", "maxWidth":"initial"},"layout":{"selfStretch":"fit"}}} -->
1368<h2 class="wp-block-heading has-text-align-center" style="font-size:24px;font-style:normal;font-weight:600;max-width:initial">' . $access_heading . '</h2>
1369<!-- /wp:heading -->
1370
1371<!-- wp:paragraph {"align":"center","style":{"typography":{"fontSize":"14px"},"spacing":{"margin":{"top":"10px","bottom":"10px"}}}} -->
1372<p class="has-text-align-center" style="margin-top:10px;margin-bottom:10px;font-size:14px">' . $subscribe_text . '</p>
1373<!-- /wp:paragraph -->
1374</div>
1375<!-- /wp:group -->
1376';
1377}
1378
1379/**
1380 * Return content for non frontend views like Reader, emails.
1381 */
1382function get_paywall_simple(): string {
1383    $is_paid_post        = is_paid_post();
1384    $is_subscribers_post = is_subscribers_post();
1385    $is_subscriber       = is_jetpack_memberships_loaded() && Jetpack_Memberships::is_current_user_subscribed();
1386    $paywall_heading     = esc_html__( 'Subscribe to keep reading', 'jetpack' );
1387
1388    if ( $is_subscribers_post && ! $is_subscriber ) {
1389        $paywall_description = esc_html__( "It's a subscribers only post. Subscribe to get access to the rest of this post and other subscriber-only content.", 'jetpack' );
1390        $paywall_action_btn  = esc_html__( 'Subscribe', 'jetpack' );
1391    } elseif ( $is_paid_post && $is_subscriber ) {
1392        $paywall_description = esc_html__( "You're currently a free subscriber. Upgrade your subscription to get access to the rest of this post and other paid-subscriber only content.", 'jetpack' );
1393        $paywall_action_btn  = esc_html__( 'Upgrade subscription', 'jetpack' );
1394    } else {
1395        // - For paid post when the user is not a subscriber.
1396        // - Default for all other cases.
1397        $paywall_description = esc_html__( 'Become a paid subscriber to get access to the rest of this post and other exclusive content.', 'jetpack' );
1398        $paywall_action_btn  = esc_html__( 'Subscribe', 'jetpack' );
1399    }
1400
1401    return '
1402<!-- wp:columns -->
1403<div class="wp-block-columns jetpack-paywall-simple" style="display: inline-block; width: 90%">
1404    <!-- wp:column -->
1405    <div class="wp-block-column" style="background-color: #F6F7F7; padding: 32px; 24px;">
1406        <!-- wp:heading -->
1407        <h2 class="has-text-align-center" style="margin: 0 0 12px; font-weight: 600;">' . $paywall_heading . '</h2>
1408        <!-- /wp:heading -->
1409        <!-- wp:paragraph -->
1410        <p class="has-text-align-center"
1411           style="text-align: center;
1412                  color: #50575E;
1413                  font-weight: 400;
1414                  font-size: 16px;
1415                  font-family: \'SF Pro Text\', sans-serif;
1416                  line-height: 28.8px;">
1417        ' . $paywall_description . '
1418        </p>
1419        <!-- /wp:paragraph -->
1420        <!-- wp:buttons -->
1421        <div class="wp-block-buttons" style="text-align: center;">
1422            <!-- wp:button -->
1423            <div class="wp-block-button" style="display: inline-block; margin: 10px 0; border-style: none; padding: 0;">
1424                <a href="' . esc_url( get_post_permalink() ) . '" class="wp-block-button__link wp-element-button"
1425                   data-wpcom-track data-tracks-link-desc="paywall-email-click"
1426                   style="display: inline-block;
1427                          padding: 12px 15px;
1428                          background-color: #3858e9;
1429                          color: #FFFFFF;
1430                          text-decoration: none;
1431                          border-radius: 5px;
1432                          font-family: \'SF Pro Display\', sans-serif;
1433                          font-weight: 500;
1434                          font-size: 16px;
1435                          text-align: center;">' . $paywall_action_btn . '</a>
1436            </div>
1437            <!-- /wp:button -->
1438        </div>
1439        <!-- /wp:buttons -->
1440    </div>
1441    <!-- /wp:column -->
1442</div>
1443<!-- /wp:columns -->
1444';
1445}