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