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1<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2
3// phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files.
4
5use Automattic\Jetpack\Redirect;
6
7// Disable direct access/execution to/of the widget code.
8if ( ! defined( 'ABSPATH' ) ) {
9    exit( 0 );
10}
11
12/**
13 * Jetpack_My_Community_Widget displays community members of this site.
14 *
15 * A community member is a WordPress.com user that liked or commented on an entry or subscribed to the site.
16 * Requires WordPress.com connection to work. Otherwise it won't be visible in Widgets screen in admin.
17 */
18class Jetpack_My_Community_Widget extends WP_Widget {
19    /**
20     * Transient expiration time.
21     *
22     * @var int $expiration
23     */
24    public static $expiration = 600;
25
26    /**
27     * Default widget title.
28     *
29     * @var string $default_title
30     */
31    public $default_title;
32
33    /**
34     * Registers the widget with WordPress.
35     */
36    public function __construct() {
37        parent::__construct(
38            'jetpack_my_community', // Base ID.
39            /** This filter is documented in modules/widgets/facebook-likebox.php */
40            apply_filters( 'jetpack_widget_name', esc_html__( 'My Community', 'jetpack' ) ),
41            array(
42                'description'                 => esc_html__( "Display members of your site's community.", 'jetpack' ),
43                'customize_selective_refresh' => true,
44            )
45        );
46
47        $this->default_title = esc_html__( 'Community', 'jetpack' );
48
49        add_filter( 'widget_types_to_hide_from_legacy_widget_block', array( $this, 'hide_widget_in_block_editor' ) );
50    }
51
52    /**
53     * Remove the "My Community" widget from the Legacy Widget block
54     *
55     * @param array $widget_types List of widgets that are currently removed from the Legacy Widget block.
56     * @return array $widget_types New list of widgets that will be removed.
57     */
58    public function hide_widget_in_block_editor( $widget_types ) {
59        $widget_types[] = 'jetpack_my_community';
60        return $widget_types;
61    }
62
63    /**
64     * Enqueue stylesheet for grid layout.
65     */
66    public function enqueue_style() {
67        wp_register_style( 'jetpack-my-community-widget', plugins_url( 'my-community/style.css', __FILE__ ), array(), '20160129' );
68        wp_enqueue_style( 'jetpack-my-community-widget' );
69    }
70
71    /**
72     * Back end widget form.
73     *
74     * @see WP_Widget::form()
75     *
76     * @param array $instance Previously saved values from database.
77     *
78     * @return string|void
79     */
80    public function form( $instance ) {
81        $title = isset( $instance['title'] ) ? $instance['title'] : false;
82        if ( false === $title ) {
83            $title = $this->default_title;
84        }
85
86        $number = isset( $instance['number'] ) ? (int) $instance['number'] : 10;
87        if ( ! in_array( $number, array( 10, 50 ), true ) ) {
88            $number = 10;
89        }
90
91        $include_likers     = isset( $instance['include_likers'] ) ? (bool) $instance['include_likers'] : true;
92        $include_followers  = isset( $instance['include_followers'] ) ? (bool) $instance['include_followers'] : true;
93        $include_commenters = isset( $instance['include_commenters'] ) ? (bool) $instance['include_commenters'] : true;
94        ?>
95
96        <p>
97            <label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php esc_html_e( 'Title:', 'jetpack' ); ?></label>
98            <input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
99        </p>
100
101        <p>
102            <label><?php esc_html_e( 'Show a maximum of', 'jetpack' ); ?></label>
103        </p>
104        <ul>
105            <li><label><input id="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>-few"  name="<?php echo esc_attr( $this->get_field_name( 'number' ) ); ?>" type="radio" value="10" <?php checked( '10', $number ); ?> /> <?php esc_html_e( '10 community members', 'jetpack' ); ?></label></li>
106            <li><label><input id="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>-lots" name="<?php echo esc_attr( $this->get_field_name( 'number' ) ); ?>" type="radio" value="50" <?php checked( '50', $number ); ?> /> <?php esc_html_e( '50 community members', 'jetpack' ); ?></label></li>
107        </ul>
108
109        <p>
110            <label for="<?php echo esc_attr( $this->get_field_id( 'include_likers' ) ); ?>">
111                <input type="checkbox" class="checkbox"  id="<?php echo esc_attr( $this->get_field_id( 'include_likers' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'include_likers' ) ); ?>" value="1" <?php checked( $include_likers, 1 ); ?> />
112                <?php esc_html_e( 'Include activity from likers', 'jetpack' ); ?>
113            </label>
114        </p>
115
116        <p>
117            <label for="<?php echo esc_attr( $this->get_field_id( 'include_followers' ) ); ?>">
118                <input type="checkbox" class="checkbox"  id="<?php echo esc_attr( $this->get_field_id( 'include_followers' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'include_followers' ) ); ?>" value="1" <?php checked( $include_followers, 1 ); ?> />
119                <?php esc_html_e( 'Include activity from followers', 'jetpack' ); ?>
120            </label>
121        </p>
122
123        <p>
124            <label for="<?php echo esc_attr( $this->get_field_id( 'include_commenters' ) ); ?>">
125                <input type="checkbox" class="checkbox"  id="<?php echo esc_attr( $this->get_field_id( 'include_commenters' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'include_commenters' ) ); ?>" value="1" <?php checked( $include_commenters, 1 ); ?> />
126                <?php esc_html_e( 'Include activity from commenters', 'jetpack' ); ?>
127            </label>
128        </p>
129
130        <?php
131    }
132
133    /**
134     * Sanitize widget form values as they are saved.
135     *
136     * @see WP_Widget::update()
137     *
138     * @param array $new_instance Values just sent to be saved.
139     * @param array $old_instance Previously saved values from database.
140     *
141     * @return array Updated safe values to be saved.
142     */
143    public function update( $new_instance, $old_instance ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
144        $instance          = array();
145        $instance['title'] = wp_kses( $new_instance['title'], array() );
146        if ( $instance['title'] === $this->default_title ) {
147            $instance['title'] = false; // Store as false in case of language change.
148        }
149
150        $instance['number'] = (int) $new_instance['number'];
151        if ( ! in_array( $instance['number'], array( 10, 50 ), true ) ) {
152            $instance['number'] = 10;
153        }
154
155        $instance['include_likers']     = (bool) $new_instance['include_likers'];
156        $instance['include_followers']  = (bool) $new_instance['include_followers'];
157        $instance['include_commenters'] = (bool) $new_instance['include_commenters'];
158
159        delete_transient( "$this->id-v2-{$instance['number']}" . (int) $instance['include_likers'] . (int) $instance['include_followers'] . (int) $instance['include_commenters'] );
160
161        return $instance;
162    }
163
164    /**
165     * Front-end display of widget.
166     *
167     * @see WP_Widget::widget()
168     *
169     * @param array $args     Widget arguments.
170     * @param array $instance Saved values from database.
171     */
172    public function widget( $args, $instance ) {
173        $instance = wp_parse_args(
174            $instance,
175            array(
176                'title'              => false,
177                'number'             => true,
178                'include_likers'     => true,
179                'include_followers'  => true,
180                'include_commenters' => true,
181            )
182        );
183
184        $title = $instance['title'];
185
186        if ( false === $title ) {
187            $title = $this->default_title;
188        }
189
190        // Enqueue front end assets.
191        $this->enqueue_style();
192
193        echo $args['before_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
194
195        /** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
196        $title = apply_filters( 'widget_title', $title );
197        if ( ! empty( $title ) ) {
198            echo $args['before_title'] . $title . $args['after_title']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
199        }
200
201        $transient_name = "$this->id-v2-{$instance['number']}" . (int) $instance['include_likers'] . (int) $instance['include_followers'] . (int) $instance['include_commenters'];
202
203        $my_community = get_transient( $transient_name );
204
205        if ( empty( $my_community ) ) {
206            $my_community = $this->get_community( $instance );
207
208            set_transient( $transient_name, $my_community, self::$expiration );
209        }
210
211        echo $my_community; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
212
213        echo $args['after_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
214
215        /** This action is documented in modules/widgets/gravatar-profile.php */
216        do_action( 'jetpack_stats_extra', 'widget_view', 'my_community' );
217    }
218
219    /**
220     * Initiate request and render the response.
221     *
222     * @since 4.0
223     *
224     * @param array $query Saved widget values from database.
225     *
226     * @return string
227     */
228    private function get_community( $query ) {
229        $members = $this->fetch_remote_community( $query );
230
231        if ( ! empty( $members ) ) {
232
233            $my_community = '<div class="widgets-multi-column-grid"><ul>';
234
235            foreach ( $members as $member ) {
236                $my_community .= sprintf(
237                    '<li><a href="%s" title="%s"><img alt="%s" src="%s" class="avatar avatar-48" height="48" width="48"></a></li>',
238                    esc_url( $member->profile_URL ), // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
239                    esc_attr( $member->name ),
240                    esc_attr( $member->name ),
241                    esc_url( $member->avatar_URL ) // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
242                );
243            }
244
245            $my_community .= '</ul></div>';
246
247        } elseif ( current_user_can( 'edit_theme_options' ) ) {
248            $my_community = '<p>' . wp_kses(
249                sprintf(
250                    /* Translators: 1. link to the widgets settings screen. 2. link to support document. */
251                    __( 'There are no users to display in this <a href="%1$s">My Community widget</a>. <a href="%2$s">Want more traffic?</a>', 'jetpack' ),
252                    admin_url( 'widgets.php' ),
253                    esc_url( Redirect::get_url( 'jetpack-support-getting-more-views-and-traffic' ) )
254                ),
255                array( 'a' => array( 'href' => true ) )
256            ) . '</p>';
257        } else {
258            $my_community = '<p>' . esc_html__( "I'm just starting out; leave me a comment or a like :)", 'jetpack' ) . '</p>';
259        }
260
261        return $my_community;
262    }
263
264    /**
265     * Request community members to WordPress.com endpoint.
266     *
267     * @since 4.0
268     *
269     * @param array $query Saved widget values from database.
270     *
271     * @return array
272     */
273    private function fetch_remote_community( $query ) {
274        $jetpack_blog_id = Jetpack_Options::get_option( 'id' );
275        $url             = add_query_arg(
276            array(
277                'number'     => $query['number'],
278                'likers'     => (int) $query['include_likers'],
279                'followers'  => (int) $query['include_followers'],
280                'commenters' => (int) $query['include_commenters'],
281            ),
282            "https://public-api.wordpress.com/rest/v1.1/sites/$jetpack_blog_id/community"
283        );
284        $response        = wp_remote_get( $url );
285        $response_body   = wp_remote_retrieve_body( $response );
286
287        if ( empty( $response_body ) ) {
288            return array();
289        }
290
291        $response_body = json_decode( $response_body );
292
293        if ( isset( $response_body->users ) ) {
294            return $response_body->users;
295        }
296
297        return array();
298    }
299}
300
301/**
302 * If site is connected to WordPress.com, register the widget.
303 *
304 * @since 4.0
305 */
306function jetpack_my_community_init() {
307    if ( Jetpack::is_connection_ready() ) {
308        register_widget( 'Jetpack_My_Community_Widget' );
309    }
310}
311add_action( 'widgets_init', 'jetpack_my_community_init' );