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1<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2/**
3 * Set up Sharing functionality and management in wp-admin.
4 *
5 * @package automattic/jetpack
6 */
7
8// phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files.
9
10use Automattic\Jetpack\Assets;
11use Automattic\Jetpack\Redirect;
12use Automattic\Jetpack\Status;
13
14if ( ! defined( 'ABSPATH' ) ) {
15    exit( 0 );
16}
17
18if ( ! defined( 'WP_SHARING_PLUGIN_URL' ) ) {
19    define( 'WP_SHARING_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
20    define( 'WP_SHARING_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
21}
22
23/**
24 * Utilities to manage sharing settings from wp-admin.
25 */
26class Sharing_Admin {
27
28    /**
29     * Constructor.
30     * Hook into WordPress to add our functionality.
31     */
32    public function __construct() {
33        require_once WP_SHARING_PLUGIN_DIR . 'sharing-service.php';
34
35        // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- nonces are handled in process_requests.
36        if ( isset( $_GET['page'] ) && ( $_GET['page'] === 'sharing.php' || $_GET['page'] === 'sharing' ) ) {
37            add_action( 'admin_init', array( $this, 'admin_init' ) );
38        }
39
40        add_action( 'admin_menu', array( $this, 'subscription_menu' ) );
41
42        // Insert our CSS and JS
43        add_action( 'load-settings_page_sharing', array( $this, 'sharing_head' ) );
44
45        // Catch AJAX
46        add_action( 'wp_ajax_sharing_save_services', array( $this, 'ajax_save_services' ) );
47        add_action( 'wp_ajax_sharing_save_options', array( $this, 'ajax_save_options' ) );
48        add_action( 'wp_ajax_sharing_new_service', array( $this, 'ajax_new_service' ) );
49        add_action( 'wp_ajax_sharing_delete_service', array( $this, 'ajax_delete_service' ) );
50    }
51
52    /**
53     * Enqueue scripts and styles on the sharing settings page.
54     *
55     * @return void
56     */
57    public function sharing_head() {
58        wp_enqueue_script(
59            'sharing-js',
60            Assets::get_file_url_for_environment(
61                '_inc/build/sharedaddy/admin-sharing.min.js',
62                'modules/sharedaddy/admin-sharing.js'
63            ),
64            array( 'jquery', 'jquery-ui-draggable', 'jquery-ui-droppable', 'jquery-ui-sortable', 'jquery-form' ),
65            JETPACK__VERSION,
66            false
67        );
68
69        /**
70         * Filters the switch that if set to true allows Jetpack to use minified assets. Defaults to true
71         * if the SCRIPT_DEBUG constant is not set or set to false. The filter overrides it.
72         *
73         * @since 6.2.0
74         *
75         * @param boolean $var should Jetpack use minified assets.
76         */
77        $postfix = apply_filters( 'jetpack_should_use_minified_assets', true ) ? '.min' : '';
78        if ( is_rtl() ) {
79            wp_enqueue_style( 'sharing-admin', WP_SHARING_PLUGIN_URL . 'admin-sharing-rtl' . $postfix . '.css', false, JETPACK__VERSION );
80        } else {
81            wp_enqueue_style( 'sharing-admin', WP_SHARING_PLUGIN_URL . 'admin-sharing' . $postfix . '.css', false, JETPACK__VERSION );
82        }
83        wp_enqueue_style( 'sharing', WP_SHARING_PLUGIN_URL . 'sharing.css', false, JETPACK__VERSION );
84
85        wp_enqueue_style( 'social-logos' );
86        wp_enqueue_script( 'sharing-js-fe', WP_SHARING_PLUGIN_URL . 'sharing.js', array(), 4, false );
87        add_thickbox();
88
89        // On Jetpack sites, make sure we include CSS to style the admin page.
90        if ( ! defined( 'IS_WPCOM' ) || ! IS_WPCOM ) {
91            Jetpack_Admin_Page::load_wrapper_styles();
92        }
93    }
94
95    /**
96     * Load the process that handles saving changes on the sharing settings page.
97     *
98     * @return void
99     */
100    public function admin_init() {
101        $this->process_requests();
102    }
103
104    /**
105     * Save changes to sharing settings.
106     *
107     * @return void
108     */
109    public function process_requests() {
110        if (
111            isset( $_POST['_wpnonce'] )
112            && wp_verify_nonce( sanitize_key( wp_unslash( $_POST['_wpnonce'] ) ), 'sharing-options' )
113        ) {
114            $sharer = new Sharing_Service();
115            $sharer->set_global_options( $_POST );
116            /**
117             * Fires when updating sharing settings.
118             *
119             * @module sharedaddy
120             *
121             * @since 1.1.0
122             */
123            do_action( 'sharing_admin_update' );
124
125            wp_safe_redirect( admin_url( 'options-general.php?page=sharing&update=saved' ) );
126            die( 0 );
127        }
128    }
129
130    /**
131     * Register Sharing settings menu page in Settings > Sharing.
132     */
133    public function subscription_menu() {
134        add_submenu_page(
135            'options-general.php',
136            __( 'Sharing Settings', 'jetpack' ),
137            __( 'Sharing', 'jetpack' ),
138            'manage_options',
139            'sharing',
140            array( $this, 'wrapper_admin_page' )
141        );
142    }
143
144    /**
145     * Save changes to sharing services via AJAX.
146     *
147     * @return void
148     */
149    public function ajax_save_services() {
150        if (
151            isset( $_POST['_wpnonce'] )
152            && wp_verify_nonce( sanitize_key( wp_unslash( $_POST['_wpnonce'] ) ), 'sharing-options' )
153            && isset( $_POST['hidden'] )
154            && isset( $_POST['visible'] )
155        ) {
156            $sharer = new Sharing_Service();
157
158            $sharer->set_blog_services(
159                explode( ',', sanitize_text_field( wp_unslash( $_POST['visible'] ) ) ),
160                explode( ',', sanitize_text_field( wp_unslash( $_POST['hidden'] ) ) )
161            );
162            die( 0 );
163        }
164    }
165
166    /**
167     * Create a new custom sharing service via AJAX.
168     *
169     * @return never
170     */
171    public function ajax_new_service() {
172        if (
173            isset( $_POST['_wpnonce'] )
174            && isset( $_POST['sharing_name'] )
175            && isset( $_POST['sharing_url'] )
176            && isset( $_POST['sharing_icon'] )
177            && wp_verify_nonce( sanitize_key( wp_unslash( $_POST['_wpnonce'] ) ), 'sharing-new_service' )
178        ) {
179            $sharer  = new Sharing_Service();
180            $service = $sharer->new_service(
181                sanitize_text_field( wp_unslash( $_POST['sharing_name'] ) ),
182                esc_url_raw( wp_unslash( $_POST['sharing_url'] ) ),
183                esc_url_raw( wp_unslash( $_POST['sharing_icon'] ) )
184            );
185
186            if ( $service ) {
187                $this->output_service( $service->get_id(), $service );
188                echo '<!--->';
189                $service->button_style = 'icon-text';
190                $this->output_preview( $service );
191
192                die( 0 );
193            }
194        }
195
196        // Fail
197        die( '1' );
198    }
199
200    /**
201     * Delete a sharing service via AJAX.
202     *
203     * @return void
204     */
205    public function ajax_delete_service() {
206        if (
207            isset( $_POST['_wpnonce'] )
208            && isset( $_POST['service'] )
209            && wp_verify_nonce(
210                sanitize_key( wp_unslash( $_POST['_wpnonce'] ) ),
211                'sharing-options_' . sanitize_text_field( wp_unslash( $_POST['service'] ) )
212            )
213        ) {
214            $sharer = new Sharing_Service();
215            $sharer->delete_service( sanitize_text_field( wp_unslash( $_POST['service'] ) ) );
216        }
217    }
218
219    /**
220     * Save changes to sharing settings via AJAX.
221     *
222     * @return void
223     */
224    public function ajax_save_options() {
225        if (
226            isset( $_POST['_wpnonce'] )
227            && isset( $_POST['service'] )
228            && wp_verify_nonce(
229                sanitize_key( wp_unslash( $_POST['_wpnonce'] ) ),
230                'sharing-options_' . sanitize_text_field( wp_unslash( $_POST['service'] ) )
231            )
232        ) {
233            $sharer  = new Sharing_Service();
234            $service = $sharer->get_service( sanitize_text_field( wp_unslash( $_POST['service'] ) ) );
235
236            if ( $service && $service instanceof Sharing_Advanced_Source ) {
237                $service->update_options( $_POST );
238
239                $sharer->set_service( sanitize_text_field( wp_unslash( $_POST['service'] ) ), $service );
240            }
241
242            $this->output_service( $service->get_id(), $service, true );
243            echo '<!--->';
244            $service->button_style = 'icon-text';
245            $this->output_preview( $service );
246            die( 0 );
247        }
248    }
249
250    /**
251     * Display a preview of a sharing service.
252     *
253     * @param object $service Sharing service object.
254     *
255     * @return void
256     */
257    public function output_preview( $service ) {
258        $klasses = array( 'advanced', 'preview-item' );
259
260        if ( $service->button_style !== 'text' || $service->has_custom_button_style() ) {
261            $klasses[] = 'preview-' . $service->get_class();
262            $klasses[] = 'share-' . $service->get_class();
263            if ( $service->is_deprecated() ) {
264                $klasses[] = 'share-deprecated';
265            }
266
267            if ( $service->get_class() !== $service->get_id() ) {
268                $klasses[] = 'preview-' . $service->get_id();
269            }
270        }
271
272        echo '<li class="' . esc_attr( implode( ' ', $klasses ) ) . '">';
273        $service->display_preview();
274        echo '</li>';
275    }
276
277    /**
278     * Display a specific sharing service.
279     *
280     * @param int    $id            Service unique ID.
281     * @param object $service       Sharing service.
282     * @param bool   $show_dropdown Display a dropdown. Not in use at the moment.
283     *
284     * @return void
285     */
286    public function output_service( $id, $service, $show_dropdown = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
287        $title             = '';
288        $klasses           = array( 'service', 'advanced', 'share-' . $service->get_class() );
289        $displayed_klasses = implode( ' ', $klasses );
290
291        if ( $service->is_deprecated() ) {
292            /* translators: %1$s is the name of a deprecated Sharing Service like "Google+" */
293            $title     = sprintf( __( 'The %1$s sharing service has shut down or discontinued support for sharing buttons. This sharing button is not displayed to your visitors and should be removed.', 'jetpack' ), $service->get_name() );
294            $klasses[] = 'share-deprecated';
295        }
296
297        ?>
298    <li class="<?php echo esc_attr( $displayed_klasses ); ?>" id="<?php echo esc_attr( $service->get_id() ); ?>" tabindex="0" title="<?php echo esc_attr( $title ); ?>">
299        <span class="options-left"><?php echo esc_html( $service->get_name() ); ?></span>
300        <?php if ( str_starts_with( $service->get_id(), 'custom-' ) || $service->has_advanced_options() ) : ?>
301        <span class="close"><a href="#" class="remove">&times;</a></span>
302        <form method="post" action="<?php echo esc_url( admin_url( 'admin-ajax.php' ) ); ?>">
303            <input type="hidden" name="action" value="sharing_delete_service" />
304            <input type="hidden" name="service" value="<?php echo esc_attr( $id ); ?>" />
305            <input type="hidden" name="_wpnonce" value="<?php echo esc_attr( wp_create_nonce( 'sharing-options_' . $id ) ); ?>" />
306        </form>
307        <?php endif; ?>
308    </li>
309        <?php
310    }
311
312    /**
313     * Display admin UI within a Jetpack header and footer.
314     *
315     * @return void
316     */
317    public function wrapper_admin_page() {
318        Jetpack_Admin_Page::wrap_ui( array( $this, 'management_page' ), array( 'is-wide' => true ) );
319    }
320
321    /**
322     * Sharing settings inner page structure.
323     *
324     * @return void
325     */
326    public function management_page() {
327
328        if ( ! function_exists( 'mb_stripos' ) ) {
329            echo '<div id="message" class="updated fade"><h3>' . esc_html__( 'Warning! Multibyte support missing!', 'jetpack' ) . '</h3>';
330            echo '<p>' . wp_kses(
331                sprintf(
332                    /* Translators: placeholder is a link to a PHP support document. */
333                    __( 'This plugin will work without it, but multibyte support is used <a href="%s" rel="noopener noreferrer" target="_blank">if available</a>. You may see minor problems with Tweets and other sharing services.', 'jetpack' ),
334                    'https://www.php.net/manual/en/mbstring.installation.php'
335                ),
336                array(
337                    'a' => array(
338                        'href'   => array(),
339                        'rel'    => array(),
340                        'target' => array(),
341                    ),
342                )
343            ) . '</p></div>';
344        }
345
346        if ( isset( $_GET['update'] ) && 'saved' === $_GET['update'] ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- only used to display a message.
347            echo '<div class="updated"><p>' . esc_html__( 'Settings have been saved', 'jetpack' ) . '</p></div>';
348        }
349        ?>
350
351    <div class="wrap">
352        <div class="icon32" id="icon-options-general"><br /></div>
353        <h1><?php esc_html_e( 'Sharing Settings', 'jetpack' ); ?></h1>
354
355        <?php
356        /**
357         * Fires at the top of the admin sharing settings screen.
358         *
359         * @module sharedaddy
360         *
361         * @since 1.6.0
362         */
363        do_action( 'pre_admin_screen_sharing' );
364        ?>
365
366        <?php
367            $is_simple_site     = defined( 'IS_WPCOM' ) && IS_WPCOM;
368            $show_block_message = $this->should_use_site_editor() && ! $is_simple_site;
369
370            // We either show old services config or the sharing block message.
371        if ( current_user_can( 'manage_options' ) ) :
372            $show_block_message ? $this->sharing_block_display() : $this->services_config_display();
373            endif;
374        ?>
375    </div>
376
377    <script type="text/javascript">
378        var sharing_loading_icon = <?php echo wp_json_encode( admin_url( '/images/loading.gif' ), JSON_UNESCAPED_SLASHES | JSON_HEX_TAG | JSON_HEX_AMP ); ?>;
379        <?php
380        // phpcs:disable WordPress.Security.NonceVerification.Recommended -- we handle the nonce on the PHP side.
381        if (
382            isset( $_GET['create_new_service'] ) && isset( $_GET['name'] ) && isset( $_GET['url'] ) && isset( $_GET['icon'] )
383            && 'true' == $_GET['create_new_service'] // phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual
384        ) :
385            ?>
386        jQuery(document).ready(function() {
387            // Prefill new service box and then open it
388            jQuery( '#new_sharing_name' ).val( <?php echo wp_json_encode( sanitize_text_field( wp_unslash( $_GET['name'] ) ), JSON_UNESCAPED_SLASHES | JSON_HEX_TAG | JSON_HEX_AMP ); ?> );
389            jQuery( '#new_sharing_url' ).val( <?php echo wp_json_encode( sanitize_text_field( wp_unslash( $_GET['url'] ) ), JSON_UNESCAPED_SLASHES | JSON_HEX_TAG | JSON_HEX_AMP ); ?> );
390            jQuery( '#new_sharing_icon' ).val( <?php echo wp_json_encode( sanitize_text_field( wp_unslash( $_GET['icon'] ) ), JSON_UNESCAPED_SLASHES | JSON_HEX_TAG | JSON_HEX_AMP ); ?> );
391            jQuery( '#add-a-new-service' ).click();
392        });
393        <?php endif; ?>
394    </script>
395        <?php
396        // phpcs:enable WordPress.Security.NonceVerification.Recommended
397    }
398
399    /**
400     * Check if we should encourage to use the site editor instead of the legacy sharing settings.
401     *
402     * @return boolean
403     */
404    public function should_use_site_editor() {
405            $block_availability = Jetpack_Gutenberg::get_cached_availability();
406            $is_block_available = isset( $block_availability['sharing-buttons'] ) && $block_availability['sharing-buttons']['available'];
407            $is_block_theme     = wp_is_block_theme();
408            return $is_block_available && $is_block_theme;
409    }
410
411    /**
412     * Display services admin UI for settings.
413     *
414     * @return void
415     */
416    public function services_config_display() {
417        $sharer  = new Sharing_Service();
418        $enabled = $sharer->get_blog_services();
419        $global  = $sharer->get_global_options();
420
421        $shows = array_values( get_post_types( array( 'public' => true ) ) );
422        array_unshift( $shows, 'index' );
423        if ( ! isset( $global['sharing_label'] ) ) {
424            $global['sharing_label'] = __( 'Share this:', 'jetpack' );
425        }
426        ?>
427        <div class="share_manage_options">
428        <h2><?php esc_html_e( 'Sharing Buttons', 'jetpack' ); ?></h2>
429        <p><?php esc_html_e( 'Add sharing buttons to your blog and allow your visitors to share posts with their friends.', 'jetpack' ); ?></p>
430
431        <?php
432            $is_simple_site = defined( 'IS_WPCOM' ) && IS_WPCOM;
433        if ( $this->should_use_site_editor() && $is_simple_site ) :
434            $this->site_editor_prompt_display();
435            ?>
436                    <div class="notice notice-info inline">
437                        <p>
438                        <?php esc_html_e( 'You are using a block-based theme. We recommend that you disable the legacy sharing features below and add a sharing button block to your theme’s template instead.', 'jetpack' ); ?>
439                        </p>
440                    </div>
441                <?php
442            endif;
443        ?>
444
445        <div id="services-config">
446            <table id="available-services">
447                    <tr>
448                    <td class="description">
449                        <h3><?php esc_html_e( 'Available Services', 'jetpack' ); ?></h3>
450                        <p><?php esc_html_e( "Drag and drop the services you'd like to enable into the box below.", 'jetpack' ); ?></p>
451                        <p><a href="#TB_inline?height=395&amp;width=600&amp;inlineId=new-service" class="thickbox" id="add-a-new-service"><?php esc_html_e( 'Add a new service', 'jetpack' ); ?></a></p>
452                    </td>
453                    <td class="services">
454                        <ul class="services-available" style="height: 100px;">
455                            <?php foreach ( $sharer->get_all_services_blog() as $id => $service ) : ?>
456                                <?php
457                                if ( ! isset( $enabled['all'][ $id ] ) ) {
458                                        $this->output_service( $id, $service );
459                                }
460                                ?>
461                            <?php endforeach; ?>
462                        </ul>
463                        <?php
464                        if ( ( new Status() )->is_private_site() ) {
465                            echo '<p><strong>' . esc_html__( 'Please note that your services have been restricted because your site is private.', 'jetpack' ) . '</strong></p>';
466                        }
467                        ?>
468                        <br class="clearing" />
469                    </td>
470                    </tr>
471            </table>
472
473            <table id="enabled-services">
474                <tr>
475                    <td class="description">
476                        <h3>
477                            <?php esc_html_e( 'Enabled Services', 'jetpack' ); ?>
478                            <img src="<?php echo esc_url( admin_url( 'images/loading.gif' ) ); ?>" width="16" height="16" alt="loading" style="vertical-align: middle; display: none" />
479                        </h3>
480                        <p><?php esc_html_e( 'Services dragged here will appear individually.', 'jetpack' ); ?></p>
481                    </td>
482                    <td class="services" id="share-drop-target">
483                            <h2 id="drag-instructions"
484                            <?php
485                            if ( is_countable( $enabled['visible'] ) && count( $enabled['visible'] ) > 0 ) {
486                                echo ' style="display: none"';}
487                            ?>
488                            ><?php esc_html_e( 'Drag and drop available services here.', 'jetpack' ); ?></h2>
489
490                                <ul class="services-enabled">
491                                    <?php foreach ( $enabled['visible'] as $id => $service ) : ?>
492                                        <?php $this->output_service( $id, $service, true ); ?>
493                                    <?php endforeach; ?>
494
495                                    <li class="end-fix"></li>
496                                </ul>
497                    </td>
498                    <td id="hidden-drop-target" class="services">
499                            <p><?php esc_html_e( 'Services dragged here will be hidden behind a share button.', 'jetpack' ); ?></p>
500
501                            <ul class="services-hidden">
502                                    <?php foreach ( $enabled['hidden'] as $id => $service ) : ?>
503                                        <?php $this->output_service( $id, $service, true ); ?>
504                                    <?php endforeach; ?>
505                                    <li class="end-fix"></li>
506                            </ul>
507                    </td>
508                </tr>
509            </table>
510
511            <table id="live-preview">
512                <tr>
513                    <td class="description">
514                        <h3><?php esc_html_e( 'Live Preview', 'jetpack' ); ?></h3>
515                    </td>
516                    <td class="services">
517                        <h2 <?php echo ( is_countable( $enabled['all'] ) && count( $enabled['all'] ) > 0 ) ? ' style="display: none"' : ''; ?>><?php esc_html_e( 'Sharing is off. Add services above to enable.', 'jetpack' ); ?></h2>
518                        <div class="sharedaddy sd-sharing-enabled">
519                            <?php if ( is_countable( $enabled['all'] ) && count( $enabled['all'] ) > 0 ) : ?>
520                            <h3 class="sd-title"><?php echo esc_html( $global['sharing_label'] ); ?></h3>
521                            <?php endif; ?>
522                            <div class="sd-content">
523                                <ul class="preview">
524                                    <?php foreach ( $enabled['visible'] as $id => $service ) : ?>
525                                        <?php $this->output_preview( $service ); ?>
526                                    <?php endforeach; ?>
527
528                                    <?php if ( is_countable( $enabled['hidden'] ) && count( $enabled['hidden'] ) > 0 ) : ?>
529                                    <li class="advanced"><a href="#" class="sharing-anchor sd-button share-more"><span><?php esc_html_e( 'More', 'jetpack' ); ?></span></a></li>
530                                    <?php endif; ?>
531                                </ul>
532
533                                <?php if ( is_countable( $enabled['hidden'] ) && count( $enabled['hidden'] ) > 0 ) : ?>
534                                <div class="sharing-hidden">
535                                    <div class="inner" style="display: none; <?php echo count( $enabled['hidden'] ) === 1 ? 'width:150px;' : ''; ?>">
536                                        <?php if ( count( $enabled['hidden'] ) === 1 ) : ?>
537                                            <ul style="background-image:none;">
538                                        <?php else : ?>
539                                            <ul>
540                                        <?php endif; ?>
541
542                                        <?php
543                                        foreach ( $enabled['hidden'] as $id => $service ) {
544                                            $this->output_preview( $service );
545                                        }
546                                        ?>
547                                        </ul>
548                                    </div>
549                                </div>
550                                <?php endif; ?>
551
552                                <ul class="archive" style="display:none;">
553                                <?php
554                                foreach ( $sharer->get_all_services_blog() as $id => $service ) :
555                                    if ( isset( $enabled['visible'][ $id ] ) ) {
556                                        $service = $enabled['visible'][ $id ];
557                                    } elseif ( isset( $enabled['hidden'][ $id ] ) ) {
558                                        $service = $enabled['hidden'][ $id ];
559                                    }
560
561                                    $service->button_style = 'icon-text';   // The archive needs the full text, which is removed in JS later.
562                                    $service->smart        = false;
563                                    $this->output_preview( $service );
564                                    endforeach;
565                                ?>
566                                    <li class="advanced"><a href="#" class="sharing-anchor sd-button share-more"><span><?php esc_html_e( 'More', 'jetpack' ); ?></span></a></li>
567                                </ul>
568                            </div>
569                        </div>
570                        <br class="clearing" />
571                    </td>
572                </tr>
573            </table>
574
575                <form method="post" action="<?php echo esc_url( admin_url( 'admin-ajax.php' ) ); ?>" id="save-enabled-shares">
576                    <input type="hidden" name="action" value="sharing_save_services" />
577                    <input type="hidden" name="visible" value="<?php echo esc_attr( implode( ',', array_keys( $enabled['visible'] ) ) ); ?>" />
578                    <input type="hidden" name="hidden" value="<?php echo esc_attr( implode( ',', array_keys( $enabled['hidden'] ) ) ); ?>" />
579                    <input type="hidden" name="_wpnonce" value="<?php echo esc_attr( wp_create_nonce( 'sharing-options' ) ); ?>" />
580                </form>
581        </div>
582
583        <form method="post" action="">
584            <table class="form-table">
585                <tbody>
586                    <tr valign="top">
587                        <th scope="row"><label><?php esc_html_e( 'Button style', 'jetpack' ); ?></label></th>
588                        <td>
589                            <select name="button_style" id="button_style">
590                                <option<?php echo ( $global['button_style'] === 'icon-text' ) ? ' selected="selected"' : ''; ?> value="icon-text"><?php esc_html_e( 'Icon + text', 'jetpack' ); ?></option>
591                                <option<?php echo ( $global['button_style'] === 'icon' ) ? ' selected="selected"' : ''; ?> value="icon"><?php esc_html_e( 'Icon only', 'jetpack' ); ?></option>
592                                <option<?php echo ( $global['button_style'] === 'text' ) ? ' selected="selected"' : ''; ?> value="text"><?php esc_html_e( 'Text only', 'jetpack' ); ?></option>
593                                <option<?php echo ( $global['button_style'] === 'official' ) ? ' selected="selected"' : ''; ?> value="official"><?php esc_html_e( 'Official buttons', 'jetpack' ); ?></option>
594                            </select>
595                        </td>
596                    </tr>
597                    <tr valign="top">
598                        <th scope="row"><label><?php esc_html_e( 'Sharing label', 'jetpack' ); ?></label></th>
599                        <td>
600                            <input type="text" name="sharing_label" value="<?php echo esc_attr( $global['sharing_label'] ); ?>" />
601                        </td>
602                    </tr>
603                    <?php
604                    /**
605                     * Filters the HTML at the beginning of the "Show button on" row.
606                     *
607                     * @module sharedaddy
608                     *
609                     * @since 2.1.0
610                     *
611                     * @param string $var Opening HTML tag at the beginning of the "Show button on" row.
612                     */
613                    echo apply_filters( 'sharing_show_buttons_on_row_start', '<tr valign="top">' ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
614                    ?>
615                        <th scope="row"><label><?php esc_html_e( 'Show buttons on', 'jetpack' ); ?></label></th>
616                            <td>
617                                <?php
618                                $br = false;
619                                foreach ( $shows as $show ) :
620                                    if ( 'index' === $show ) {
621                                        $label = __( 'Front Page, Archive Pages, and Search Results', 'jetpack' );
622                                    } else {
623                                        $post_type_object = get_post_type_object( $show );
624                                        $label            = $post_type_object->labels->name;
625                                    }
626                                    ?>
627                                    <?php
628                                    if ( $br ) {
629                                        echo '<br />';
630                                    }
631                                    ?>
632                                <label><input type="checkbox"<?php checked( in_array( $show, $global['show'], true ) ); ?> name="show[]" value="<?php echo esc_attr( $show ); ?>" /> <?php echo esc_html( $label ); ?></label>
633                                    <?php
634                                    $br = true;
635                                endforeach;
636                                ?>
637                            </td>
638                    <?php
639                    /**
640                     * Filters the HTML at the end of the "Show button on" row.
641                     *
642                     * @module sharedaddy
643                     *
644                     * @since 2.1.0
645                     *
646                     * @param string $var Closing HTML tag at the end of the "Show button on" row.
647                     */
648                    echo apply_filters( 'sharing_show_buttons_on_row_end', '</tr>' ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
649                    ?>
650
651                    <?php
652                    /**
653                     * Fires at the end of the sharing global options settings table.
654                     *
655                     * @module sharedaddy
656                     *
657                     * @since 1.1.0
658                     */
659                    do_action( 'sharing_global_options' );
660                    ?>
661                </tbody>
662            </table>
663
664            <p class="submit">
665                    <input type="submit" name="submit" class="button-primary" value="<?php esc_attr_e( 'Save Changes', 'jetpack' ); ?>" />
666            </p>
667
668                <input type="hidden" name="_wpnonce" value="<?php echo esc_attr( wp_create_nonce( 'sharing-options' ) ); ?>" />
669        </form>
670
671    <div id="new-service" style="display: none">
672        <form method="post" action="<?php echo esc_url( admin_url( 'admin-ajax.php' ) ); ?>" id="new-service-form">
673            <table class="form-table">
674                <tbody>
675                    <tr valign="top">
676                        <th scope="row" width="100"><label><?php esc_html_e( 'Service name', 'jetpack' ); ?></label></th>
677                        <td>
678                            <input type="text" name="sharing_name" id="new_sharing_name" size="40" />
679                        </td>
680                    </tr>
681                    <tr valign="top">
682                        <th scope="row" width="100"><label><?php esc_html_e( 'Sharing URL', 'jetpack' ); ?></label></th>
683                        <td>
684                            <input type="text" name="sharing_url" id="new_sharing_url" size="40" />
685
686                            <p><?php esc_html_e( 'You can add the following variables to your service sharing URL:', 'jetpack' ); ?><br/>
687                            <code>%post_id%</code>, <code>%post_title%</code>, <code>%post_slug%</code>, <code>%post_url%</code>, <code>%post_full_url%</code>, <code>%post_excerpt%</code>, <code>%post_tags%</code>, <code>%home_url%</code></p>
688                        </td>
689                    </tr>
690                    <tr valign="top">
691                        <th scope="row" width="100"><label><?php esc_html_e( 'Icon URL', 'jetpack' ); ?></label></th>
692                        <td>
693                            <input type="text" name="sharing_icon" id="new_sharing_icon" size="40" />
694                            <p><?php esc_html_e( 'Enter the URL of a 16x16px icon you want to use for this service.', 'jetpack' ); ?></p>
695                        </td>
696                    </tr>
697                    <tr valign="top" width="100">
698                        <th scope="row"></th>
699                        <td>
700                            <input type="submit" class="button-primary" value="<?php esc_attr_e( 'Create Share Button', 'jetpack' ); ?>" />
701                            <img src="<?php echo esc_url( admin_url( 'images/loading.gif' ) ); ?>" width="16" height="16" alt="loading" style="vertical-align: middle; display: none" />
702                        </td>
703                    </tr>
704
705                    <?php
706                    /**
707                     * Fires after the custom sharing service form
708                     *
709                     * @module sharedaddy
710                     *
711                     * @since 1.1.0
712                     */
713                    do_action( 'sharing_new_service_form' );
714                    ?>
715                </tbody>
716            </table>
717
718            <?php
719            /**
720             * Fires at the bottom of the admin sharing settings screen.
721             *
722             * @module sharedaddy
723             *
724             * @since 1.6.0
725             */
726            do_action( 'post_admin_screen_sharing' );
727            ?>
728
729                <div class="inerror" style="display: none; margin-top: 15px">
730                    <p><?php esc_html_e( 'An error occurred creating your new sharing service - please check you gave valid details.', 'jetpack' ); ?></p>
731                </div>
732
733            <input type="hidden" name="action" value="sharing_new_service" />
734            <input type="hidden" name="_wpnonce" value="<?php echo esc_attr( wp_create_nonce( 'sharing-new_service' ) ); ?>" />
735        </form>
736    </div>
737        <?php
738    }
739
740    /**
741     * Display sharing block admin UI for settings.
742     *
743     * @return void
744     */
745    public function sharing_block_display() {
746        $showcase_services = array(
747            new Share_Tumblr( 'tumblr', array() ),
748            new Share_Facebook( 'facebook', array() ),
749            new Share_Email( 'email', array() ),
750            new Share_Reddit( 'reddit', array() ),
751        );
752
753        global $submenu;
754        // Hide the link to Jetpack Sharing settings if no Jetpack Settings found in submenu list
755        $show_jetpack_admin_settings_link = array_reduce(
756            $submenu['jetpack'],
757            function ( $carry, $item ) {
758                return $carry || ( isset( $item[2] ) && $item[2] === 'jetpack#/settings' );
759            },
760            false
761        );
762        ?>
763
764        <div class="share_manage_options">
765            <br class="clearing" />
766            <h2><?php esc_html_e( 'Sharing Buttons', 'jetpack' ); ?></h2>
767            <div class="sharing-block-message__items-wrapper">
768                <div>
769                    <p><?php esc_html_e( 'Add sharing buttons to your blog and allow your visitors to share posts with their friends.', 'jetpack' ); ?></p>
770                    <?php $this->site_editor_prompt_display(); ?>
771                </div>
772                <div>
773                    <p><?php esc_html_e( 'Sharing Buttons example:', 'jetpack' ); ?></p>
774                    <div class="sharedaddy sd-sharing-enabled">
775                        <div class="sd-content">
776                            <ul class="preview">
777                                <?php foreach ( $showcase_services as $service ) : ?>
778                                    <?php $this->output_preview( $service ); ?>
779                                <?php endforeach; ?>
780                            </ul>
781                        </div>
782                    </div>
783                </div>
784                <?php if ( $show_jetpack_admin_settings_link ) : ?>
785                <p class="settings-sharing__block-theme-description">
786                    <?php
787                    printf(
788                        wp_kses(
789                            /* translators: Link to Jetpack sharing settings. */
790                            __( 'You are using a block-based theme. You can <a class="dops-card__link" href="%s">disable Jetpack’s legacy sharing buttons</a> and add a sharing block to your theme’s template instead.', 'jetpack' ),
791                            array(
792                                'a' => array( 'href' => array() ),
793                            )
794                        ),
795                        esc_url( admin_url( 'admin.php?page=jetpack#/sharing' ) )
796                    );
797                    ?>
798                </p>
799                <?php endif; ?>
800            </div>
801            <br class="clearing" />
802        </div>
803        <?php
804    }
805
806    /**
807     * Display the "Go to the site editor" prompt.
808     *
809     * @return void
810     */
811    public function site_editor_prompt_display() {
812        $host = new Status\Host();
813
814        $wpcom_link = 'https://wordpress.com/support/wordpress-editor/blocks/sharing-buttons-block/';
815
816        if ( function_exists( 'localized_wpcom_url' ) ) {
817            $wpcom_link = localized_wpcom_url( $wpcom_link );
818        }
819
820        $link = $host->is_wpcom_platform() ? $wpcom_link : Redirect::get_url( 'jetpack-support-sharing-block' );
821
822        ?>
823            <div class="sharing-block-message__buttons-wrapper">
824                <a href="<?php echo esc_url( admin_url( 'site-editor.php?path=%2Fwp_template' ) ); ?>" class="button button-primary">
825                    <?php esc_html_e( 'Go to the site editor', 'jetpack' ); ?>
826                </a>
827                <a data-target="wpcom-help-center" href="<?php echo esc_url( $link ); ?>" class="button" target="_blank" rel="noopener noreferrer">
828                    <?php esc_html_e( 'Learn how to add Sharing Buttons', 'jetpack' ); ?>
829                </a>
830            </div>
831        <?php
832    }
833}
834
835/**
836 * Callback to get the value for the jetpack_sharing_enabled field.
837 *
838 * When the sharing_disabled post_meta is unset, we follow the global setting in Sharing.
839 * When it is set to 1, we disable sharing on the post, regardless of the global setting.
840 * It is not possible to enable sharing on a post if it is disabled globally.
841 *
842 * @param array $post The post object.
843 *
844 * @return bool
845 */
846function jetpack_post_sharing_get_value( array $post ) {
847    if ( ! isset( $post['id'] ) ) {
848        return false;
849    }
850
851    // if sharing IS disabled on this post, enabled=false, so negate the meta
852    return ! get_post_meta( $post['id'], 'sharing_disabled', true );
853}
854
855/**
856 * Callback to set sharing_disabled post_meta when the
857 * jetpack_sharing_enabled field is updated.
858 *
859 * When the sharing_disabled post_meta is unset, we follow the global setting in Sharing.
860 * When it is set to 1, we disable sharing on the post, regardless of the global setting.
861 * It is not possible to enable sharing on a post if it is disabled globally.
862 *
863 * @param bool    $enable_sharing Should sharing be enabled on this post.
864 * @param WP_Post $post_object    The post object.
865 *
866 * @return int|bool
867 */
868function jetpack_post_sharing_update_value( $enable_sharing, $post_object ) {
869    if ( $enable_sharing ) {
870        // delete the override if we want to enable sharing
871        return delete_post_meta( $post_object->ID, 'sharing_disabled' );
872    } else {
873        return update_post_meta( $post_object->ID, 'sharing_disabled', true );
874    }
875}
876
877/**
878 * Add Sharing post_meta to the REST API Post response.
879 *
880 * @action rest_api_init
881 * @uses register_rest_field
882 * @link https://developer.wordpress.org/rest-api/extending-the-rest-api/modifying-responses/
883 */
884function jetpack_post_sharing_register_rest_field() {
885    $post_types = get_post_types( array( 'public' => true ) );
886    foreach ( $post_types as $post_type ) {
887        register_rest_field(
888            $post_type,
889            'jetpack_sharing_enabled',
890            array(
891                'get_callback'    => 'jetpack_post_sharing_get_value',
892                'update_callback' => 'jetpack_post_sharing_update_value',
893                'schema'          => array(
894                    'description' => __( 'Are sharing buttons enabled?', 'jetpack' ),
895                    'type'        => 'boolean',
896                ),
897            )
898        );
899
900        /**
901         * Ensures all public internal post-types support `sharing`
902         * This feature support flag is used by the REST API and Gutenberg.
903         */
904        add_post_type_support( $post_type, 'jetpack-sharing-buttons' );
905    }
906}
907
908// Add Sharing post_meta to the REST API Post response.
909add_action( 'rest_api_init', 'jetpack_post_sharing_register_rest_field' );
910
911// Some CPTs (e.g. Jetpack portfolios and testimonials) get registered with
912// restapi_theme_init because they depend on theme support, so let's also hook to that
913add_action( 'restapi_theme_init', 'jetpack_post_likes_register_rest_field', 20 );
914
915/**
916 * Initialize sharing settings in WP Admin.
917 *
918 * @return void
919 */
920function sharing_admin_init() {
921    global $sharing_admin;
922
923    $sharing_admin = new Sharing_Admin();
924}
925
926add_action( 'init', 'sharing_admin_init' );