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1<?php
2/**
3 * Mailchimp Block.
4 *
5 * @since 7.1.0
6 *
7 * @package automattic/jetpack
8 */
9
10namespace Automattic\Jetpack\Extensions\Mailchimp;
11
12use Automattic\Jetpack\Assets;
13use Automattic\Jetpack\Blocks;
14use Automattic\Jetpack\Connection\Client;
15use Automattic\Jetpack\Connection\Manager as Connection_Manager;
16use Automattic\Jetpack\External_Connections;
17use Automattic\Jetpack\Status\Host;
18use Jetpack;
19use Jetpack_Gutenberg;
20
21if ( ! defined( 'ABSPATH' ) ) {
22    exit( 0 );
23}
24
25/**
26 * Registers the block for use in Gutenberg
27 * This is done via an action so that we can disable
28 * registration if we need to.
29 */
30function register_block() {
31    if (
32        ( defined( 'IS_WPCOM' ) && IS_WPCOM )
33        || Jetpack::is_connection_ready()
34    ) {
35        Blocks::jetpack_register_block(
36            __DIR__,
37            array(
38                'render_callback' => __NAMESPACE__ . '\load_assets',
39            )
40        );
41
42        register_admin_settings();
43    }
44}
45add_action( 'init', __NAMESPACE__ . '\register_block' );
46
47/**
48 * Mailchimp block registration/dependency declaration.
49 *
50 * The render implementation lives in render.php and is only loaded when the
51 * block is actually rendered, keeping it out of the eager front-end path.
52 *
53 * @param array  $attr - Array containing the Mailchimp block attributes.
54 * @param string $content - Mailchimp block content.
55 *
56 * @return string
57 */
58function load_assets( $attr, $content ) {
59    require_once __DIR__ . '/render.php';
60    return load_assets_implementation( $attr, $content );
61}
62
63/**
64 * Registers the settings to manage the Mailchimp connection.
65 */
66function register_admin_settings() {
67    Assets::register_script(
68        'jetpack-mailchimp-admin-extra-settings',
69        Jetpack_Gutenberg::get_blocks_directory() . '/mailchimp/admin.js',
70        JETPACK__PLUGIN_FILE,
71        array(
72            'textdomain' => 'jetpack',
73        )
74    );
75
76    External_Connections::add_settings_for_service(
77        'writing',
78        array(
79            'service'      => 'mailchimp',
80            'title'        => __( 'Mailchimp', 'jetpack' ),
81            'signup_link'  => 'https://public-api.wordpress.com/rest/v1.1/sharing/mailchimp/signup',
82            'description'  => __( 'Allow users to sign up to your Mailchimp mailing list.', 'jetpack' ),
83            'script'       => 'jetpack-mailchimp-admin-extra-settings',
84            'support_link' => array(
85                'wpcom'   => 'https://wordpress.com/support/wordpress-editor/blocks/mailchimp-block/',
86                'jetpack' => 'mailchimp-block',
87            ),
88        )
89    );
90
91    add_action( 'load-options.php', __NAMESPACE__ . '\update_settings' );
92}
93
94/**
95 * Update the site options that are related to Mailchimp.
96 */
97function update_settings() {
98    $action      = ! empty( $_REQUEST['action'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['action'] ) ) : '';
99    $option_page = ! empty( $_REQUEST['option_page'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['option_page'] ) ) : '';
100    $audience    = ! empty( $_REQUEST['jetpack-mailchimp-audience'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['jetpack-mailchimp-audience'] ) ) : '';
101    if ( $action !== 'update' || $option_page !== 'writing' || ! current_user_can( 'manage_options' ) || $audience === '' ) {
102        return;
103    }
104
105    check_admin_referer( 'writing-options' );
106
107    $site_id = Connection_Manager::get_site_id();
108    if ( is_wp_error( $site_id ) ) {
109        return;
110    }
111
112    if ( $audience === 'none' ) {
113        $data = array(
114            'follower_list_id' => '0',
115            'keyring_id'       => '0',
116        );
117    } else {
118        $connection = External_Connections::get_connection( 'mailchimp' );
119        if ( empty( $connection ) ) {
120            return;
121        }
122        $data = array(
123            'follower_list_id' => $audience,
124            'keyring_id'       => $connection['ID'],
125        );
126    }
127
128    if ( ( new Host() )->is_wpcom_simple() ) {
129        require_lib( 'mailchimp' );
130        $response = \MailchimpApi::save_settings( $site_id, $data );
131    } else {
132        $response = Client::wpcom_json_api_request_as_user(
133            sprintf( '/sites/%d/mailchimp/settings', $site_id ),
134            '1.1',
135            array( 'method' => 'POST' ),
136            $data,
137            'rest'
138        );
139    }
140    if ( is_wp_error( $response ) ) {
141        add_settings_error( 'general', 'settings_updated', __( 'Settings save failed.', 'jetpack' ), 'error' );
142    }
143}