--- /dev/null
+<?php
+/**
+ * Widget API: WP_Widget_RSS class
+ *
+ * @package WordPress
+ * @subpackage Widgets
+ * @since 4.4.0
+ */
+
+/**
+ * Core class used to implement a RSS widget.
+ *
+ * @since 2.8.0
+ *
+ * @see WP_Widget
+ */
+class WP_Widget_RSS extends WP_Widget {
+
+ /**
+ * Sets up a new RSS widget instance.
+ *
+ * @since 2.8.0
+ * @access public
+ */
+ public function __construct() {
+ $widget_ops = array( 'description' => __('Entries from any RSS or Atom feed.') );
+ $control_ops = array( 'width' => 400, 'height' => 200 );
+ parent::__construct( 'rss', __('RSS'), $widget_ops, $control_ops );
+ }
+
+ /**
+ * Outputs the content for the current RSS widget instance.
+ *
+ * @since 2.8.0
+ * @access public
+ *
+ * @param array $args Display arguments including 'before_title', 'after_title',
+ * 'before_widget', and 'after_widget'.
+ * @param array $instance Settings for the current RSS widget instance.
+ */
+ public function widget( $args, $instance ) {
+ if ( isset($instance['error']) && $instance['error'] )
+ return;
+
+ $url = ! empty( $instance['url'] ) ? $instance['url'] : '';
+ while ( stristr($url, 'http') != $url )
+ $url = substr($url, 1);
+
+ if ( empty($url) )
+ return;
+
+ // self-url destruction sequence
+ if ( in_array( untrailingslashit( $url ), array( site_url(), home_url() ) ) )
+ return;
+
+ $rss = fetch_feed($url);
+ $title = $instance['title'];
+ $desc = '';
+ $link = '';
+
+ if ( ! is_wp_error($rss) ) {
+ $desc = esc_attr(strip_tags(@html_entity_decode($rss->get_description(), ENT_QUOTES, get_option('blog_charset'))));
+ if ( empty($title) )
+ $title = strip_tags( $rss->get_title() );
+ $link = strip_tags( $rss->get_permalink() );
+ while ( stristr($link, 'http') != $link )
+ $link = substr($link, 1);
+ }
+
+ if ( empty($title) )
+ $title = empty($desc) ? __('Unknown Feed') : $desc;
+
+ /** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
+ $title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
+
+ $url = strip_tags( $url );
+ $icon = includes_url( 'images/rss.png' );
+ if ( $title )
+ $title = '<a class="rsswidget" href="' . esc_url( $url ) . '"><img class="rss-widget-icon" style="border:0" width="14" height="14" src="' . esc_url( $icon ) . '" alt="RSS" /></a> <a class="rsswidget" href="' . esc_url( $link ) . '">"'. esc_html( $title ) .'"</a>';
+
+ echo $args['before_widget'];
+ if ( $title ) {
+ echo $args['before_title'] . $title . $args['after_title'];
+ }
+ wp_widget_rss_output( $rss, $instance );
+ echo $args['after_widget'];
+
+ if ( ! is_wp_error($rss) )
+ $rss->__destruct();
+ unset($rss);
+ }
+
+ /**
+ * Handles updating settings for the current RSS widget instance.
+ *
+ * @since 2.8.0
+ * @access public
+ *
+ * @param array $new_instance New settings for this instance as input by the user via
+ * WP_Widget::form().
+ * @param array $old_instance Old settings for this instance.
+ * @return array Updated settings to save.
+ */
+ public function update( $new_instance, $old_instance ) {
+ $testurl = ( isset( $new_instance['url'] ) && ( !isset( $old_instance['url'] ) || ( $new_instance['url'] != $old_instance['url'] ) ) );
+ return wp_widget_rss_process( $new_instance, $testurl );
+ }
+
+ /**
+ * Outputs the settings form for the RSS widget.
+ *
+ * @since 2.8.0
+ * @access public
+ *
+ * @param array $instance Current settings.
+ */
+ public function form( $instance ) {
+ if ( empty( $instance ) ) {
+ $instance = array( 'title' => '', 'url' => '', 'items' => 10, 'error' => false, 'show_summary' => 0, 'show_author' => 0, 'show_date' => 0 );
+ }
+ $instance['number'] = $this->number;
+
+ wp_widget_rss_form( $instance );
+ }
+}