<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName

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/**

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* Flickr Widget, pulling recent photos from Flickr using RSS feed.

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*

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* This widget is now deprecated.

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* Existing widgets will continue to work, but Flickr no longer displays RSS feeds,

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* making it impossible for site owners to configure this widget.

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* We consequently only register the widget if it's already in use on the site.

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*

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* @see https://github.com/Automattic/jetpack/issues/39824

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*

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* @package automattic/jetpack

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*/

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// phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files.

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/**

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* Disable direct access/execution to/of the widget code.

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*/

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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if ( ! class_exists( 'Jetpack_Flickr_Widget' ) ) {

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/**

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* Flickr Widget

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*

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* Display your recent Flickr photos.

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*/

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class Jetpack_Flickr_Widget extends WP_Widget {

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/**

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* Constructor.

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*/

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public function __construct() {

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parent::__construct(

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'flickr',

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/** This filter is documented in modules/widgets/facebook-likebox.php */

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apply_filters( 'jetpack_widget_name', esc_html__( 'Flickr', 'jetpack' ) ),

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array(

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'description' => esc_html__( 'Display your recent Flickr photos.', 'jetpack' ),

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'customize_selective_refresh' => true,

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),

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array()

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);

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}

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/**

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* Enqueue style.

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*/

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public function enqueue_style() {

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wp_enqueue_style( 'flickr-widget-style', plugins_url( 'flickr/style.css', __FILE__ ), array(), '20170405' );

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}

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/**

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* Return an associative array of default values.

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*

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* These values are used in new widgets.

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*

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* @return array Default values for the widget options.

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*/

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public function defaults() {

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return array(

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'title' => esc_html__( 'Flickr Photos', 'jetpack' ),

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'items' => 4,

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'target' => false,

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'flickr_image_size' => 'thumbnail',

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'flickr_rss_url' => '',

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);

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}

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/**

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* Front-end display of the widget.

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*

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* @html-template-var array $instance

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* @html-template-var string|null $flickr_home

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* @html-template-var string $photos';

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*

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* @param array $args Widget arguments.

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* @param array $instance Saved values from database.

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*/

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public function widget( $args, $instance ) {

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$instance = wp_parse_args( $instance, $this->defaults() );

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// Enqueue front end assets.

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$this->enqueue_style();

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if ( ! empty( $instance['flickr_rss_url'] ) ) {

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/*

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* Parse the URL, and rebuild a URL that's sure to display images.

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* Some Flickr Feeds do not display images by default.

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*/

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$flickr_parameters = wp_parse_url( htmlspecialchars_decode( $instance['flickr_rss_url'], ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ) );

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// Is it a Flickr Feed.

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if (

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! empty( $flickr_parameters['host'] )

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&& ! empty( $flickr_parameters['query'] )

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&& str_contains( $flickr_parameters['host'], 'flickr' )

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) {

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parse_str( $flickr_parameters['query'], $vars );

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// Do we have an ID in the feed? Let's continue.

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if ( isset( $vars['id'] ) ) {

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// Flickr Feeds can be used for groups or for individuals.

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if (

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! empty( $flickr_parameters['path'] )

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&& str_contains( $flickr_parameters['path'], 'groups' )

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) {

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$feed_url = 'https://api.flickr.com/services/feeds/groups_pool.gne';

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} else {

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$feed_url = 'https://api.flickr.com/services/feeds/photos_public.gne';

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}

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// Build our new RSS feed.

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$rss_url = sprintf(

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'%1$s?id=%2$s&format=rss_200_enc',

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esc_url( $feed_url ),

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esc_attr( $vars['id'] )

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);

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}

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}

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}

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// Still no RSS feed URL? Get a default feed from Flickr to grab interesting photos.

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if ( empty( $rss_url ) ) {

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$rss_url = 'https://api.flickr.com/services/feeds/photos_interesting.gne?format=rss_200';

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}

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$rss = fetch_feed( $rss_url );

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$photos = '';

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$flickr_home = null; // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- Used in flickr/widget.php template file.

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if ( ! is_wp_error( $rss ) ) {

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foreach ( $rss->get_items( 0, $instance['items'] ) as $photo ) {

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switch ( $instance['flickr_image_size'] ) {

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case 'thumbnail':

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$src = $photo->get_enclosure()->get_thumbnail();

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break;

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case 'small':

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$src = preg_match( '/src="(.*?)"/i', $photo->get_description(), $p );

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$src = $p[1];

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break;

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case 'large':

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$src = $photo->get_enclosure()->get_link();

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break;

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}

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$photos .= '<a href="' . esc_url( $photo->get_permalink(), array( 'http', 'https' ) ) . '" ';

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if ( $instance['target'] ) {

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$photos .= 'target="_blank" rel="noopener noreferrer" ';

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}

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$photos .= '><img src="' . esc_url( $src, array( 'http', 'https' ) ) . '" ';

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$photos .= 'alt="' . esc_attr( $photo->get_title() ) . '" ';

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$photos .= 'title="' . esc_attr( $photo->get_title() ) . '" ';

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$photos .= ' /></a>';

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}

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if ( ! empty( $photos ) ) {

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$photos = apply_filters( 'jetpack_image_cdn_content', $photos );

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}

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$flickr_home = $rss->get_link(); // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- Used in flickr/widget.php template file.

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}

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echo $args['before_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

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if ( empty( $photos ) ) {

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if ( current_user_can( 'edit_theme_options' ) ) {

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printf(

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'<p>%1$s<br />%2$s</p>',

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esc_html__( 'There are no photos to display. Make sure your Flickr feed URL is correct, and that your pictures are publicly accessible.', 'jetpack' ),

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esc_html__( '(Only admins can see this message)', 'jetpack' )

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);

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}

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} else {

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echo $args['before_title'] . $instance['title'] . $args['after_title']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

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require __DIR__ . '/flickr/widget.php';

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}

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echo $args['after_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

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/** This action is already documented in modules/widgets/gravatar-profile.php */

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do_action( 'jetpack_stats_extra', 'widget_view', 'flickr' );

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}

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/**

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* Back-end widget form.

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*

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* @html-template-var array $instance

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*

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* @param array $instance Previously saved values from database.

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* @return string|void

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*/

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public function form( $instance ) {

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$instance = wp_parse_args( $instance, $this->defaults() );

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require __DIR__ . '/flickr/form.php';

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}

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/**

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* Sanitize widget form values as they are saved.

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*

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* @param array $new_instance Values just sent to be saved.

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* @param array $old_instance Previously saved values from database.

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* @return array Updated safe values to be saved.

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*/

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public function update( $new_instance, $old_instance ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable

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$instance = array();

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if ( isset( $new_instance['title'] ) ) {

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$instance['title'] = wp_kses( $new_instance['title'], array() );

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}

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if ( isset( $new_instance['items'] ) ) {

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$instance['items'] = (int) $new_instance['items'];

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}

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if ( isset( $new_instance['target'] ) ) {

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$instance['target'] = (bool) $new_instance['target'];

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}

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if (

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isset( $new_instance['flickr_image_size'] ) &&

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in_array( $new_instance['flickr_image_size'], array( 'thumbnail', 'small', 'large' ), true )

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) {

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$instance['flickr_image_size'] = $new_instance['flickr_image_size'];

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} else {

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$instance['flickr_image_size'] = 'thumbnail';

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}

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if ( isset( $new_instance['flickr_rss_url'] ) ) {

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$instance['flickr_rss_url'] = esc_url( $new_instance['flickr_rss_url'], array( 'http', 'https' ) );

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if ( strlen( $instance['flickr_rss_url'] ) < 10 ) {

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$instance['flickr_rss_url'] = '';

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}

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}

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return $instance;

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}

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}

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/**

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* Register Jetpack_Flickr_Widget widget.

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*/

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function jetpack_register_flickr_widget() {

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$transient = 'jetpack_flickr_widget::is_active';

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$has_widget = get_transient( $transient );

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if ( false === $has_widget ) {

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$is_active_widget = is_active_widget( false, false, 'flickr', false );

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$has_widget = (int) ! empty( $is_active_widget );

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set_transient( $transient, $has_widget, 1 * HOUR_IN_SECONDS );

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}

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// [DEPRECATION]: Only register widget if active widget exists already

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if ( $has_widget ) {

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register_widget( 'Jetpack_Flickr_Widget' );

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}

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}

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add_action( 'widgets_init', 'jetpack_register_flickr_widget' );

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}

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