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<?php |
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/** |
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* Widget for inserting an ad into your sidebar |
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* |
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* @since 4.5.0 |
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*/ |
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class WordAds_Sidebar_Widget extends WP_Widget { |
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private static $allowed_tags = array( 'mrec', 'wideskyscraper' ); |
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View Code Duplication |
function __construct() { |
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parent::__construct( |
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'wordads_sidebar_widget', |
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apply_filters( 'jetpack_widget_name', 'Ads' ), |
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array( |
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'description' => __( 'Insert a WordAd wherever you can place a widget.', 'jetpack' ), |
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'customize_selective_refresh' => true |
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) |
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); |
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} |
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public function widget( $args, $instance ) { |
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global $wordads; |
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if ( $wordads->should_bail() ) { |
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return false; |
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} |
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$about = __( 'About these ads', 'jetpack' ); |
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$width = WordAds::$ad_tag_ids[$instance['unit']]['width']; |
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$height = WordAds::$ad_tag_ids[$instance['unit']]['height']; |
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$snippet = ''; |
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if ( $wordads->option( 'wordads_house', true ) ) { |
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$ad_url = 'https://s0.wp.com/wp-content/blog-plugins/wordads/house/'; |
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if ( 'leaderboard' == $instance['unit'] && ! $this->params->mobile_device ) { |
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$ad_url .= 'leaderboard.png'; |
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} else if ( 'wideskyscraper' == $instance['unit'] ) { |
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$ad_url .= 'widesky.png'; |
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} else { |
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$ad_url .= 'mrec.png'; |
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} |
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$snippet = <<<HTML |
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<a href="https://wordpress.com/create/" target="_blank"> |
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<img src="$ad_url" alt="WordPress.com: Grow Your Business" width="$width" height="$height" /> |
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</a> |
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HTML; |
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} else { |
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$section_id = 0 === $wordads->params->blog_id ? WORDADS_API_TEST_ID : $wordads->params->blog_id . '3'; |
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$data_tags = ( $wordads->params->cloudflare ) ? ' data-cfasync="false"' : ''; |
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$snippet = <<<HTML |
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<script$data_tags type='text/javascript'> |
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(function(g){g.__ATA.initAd({sectionId:$section_id, width:$width, height:$height});})(window); |
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</script> |
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HTML; |
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} |
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echo <<< HTML |
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<div class="wpcnt"> |
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<div class="wpa"> |
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<a class="wpa-about" href="https://en.wordpress.com/about-these-ads/" rel="nofollow">$about</a> |
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<div class="u {$instance['unit']}"> |
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$snippet |
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</div> |
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</div> |
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</div> |
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HTML; |
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} |
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public function form( $instance ) { |
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// ad unit type |
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if ( isset( $instance['unit'] ) ) { |
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$unit = $instance['unit']; |
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} else { |
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$unit = 'mrec'; |
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} |
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?> |
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<p> |
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<label for="<?php echo esc_attr( $this->get_field_id( 'unit' ) ); ?>"><?php _e( 'Tag Dimensions:', 'jetpack' ); ?></label> |
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<select class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'unit' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'unit' ) ); ?>"> |
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<?php |
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foreach ( WordAds::$ad_tag_ids as $ad_unit => $properties ) { |
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if ( ! in_array( $ad_unit, self::$allowed_tags ) ) { |
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continue; |
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} |
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$splits = explode( '_', $properties['tag'] ); |
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$unit_pretty = "{$splits[0]} {$splits[1]}"; |
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$selected = selected( $ad_unit, $unit, false ); |
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echo "<option value='", esc_attr( $ad_unit ) ,"' ", $selected, '>', esc_html( $unit_pretty ) , '</option>'; |
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} |
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?> |
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</select> |
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</p> |
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<?php |
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} |
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public function update( $new_instance, $old_instance ) { |
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$instance = $old_instance; |
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if ( in_array( $new_instance['unit'], self::$allowed_tags ) ) { |
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$instance['unit'] = $new_instance['unit']; |
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} else { |
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$instance['unit'] = 'mrec'; |
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} |
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return $instance; |
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} |
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} |
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add_action( |
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'widgets_init', |
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create_function( |
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'', |
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'return register_widget( "WordAds_Sidebar_Widget" );' |
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) |
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); |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.