Get the plugins of an author on WordPress.org

gistfile1.php

<?php

class Connection_Wordpress {
	private $base_url = 'http://api.wordpress.org/';

	function __construct() {
		add_action( 'widgets_init', array( $this, '_register_widgets' ) );
	}

	function _register_widgets() {
		register_widget( 'Connection_Wordpress_Widget' );
	}


	public function get_author_plugins( $name, $cache = true ) {
		if( ! $name )
			return false;

		if ( false === $cache || false === ( $data = get_transient( 'connection_wordpress_author' . $name ) ) ) {

			$url = $this->base_url . 'plugins/info/1.0/';

			$payload = array(
				'action' => 'query_themes',
				'request' => serialize(
					(object) array(
						'author' => $name,
						'per_page' => 30
					)
				)
			);

			$request = wp_remote_post( $url, array( 'body' => $payload ) );
			$data    = maybe_unserializew( wp_remote_retrieve_body( $request ) );

			if( $cache && $data )
				 set_transient( 'connection_wordpress_author' . $name, $data );
		}

		return $data;
	}

	public function get_author_themes( $name, $cache = true ) {
		if( ! $name )
			return false;

		if ( false === $cache || false === ( $data = get_transient( 'connection_wordpress_author' . $name ) ) ) {

			$url = $this->base_url . 'themes/info/1.0/';

			$payload = array(
				'action' => 'query_plugins',
				'request' => serialize(
					(object) array(
						'author' => $name,
						'per_page' => 30
					)
				)
			);

			$request = wp_remote_post( $url, array( 'body' => $payload ) );
			$data    = unserialize( wp_remote_retrieve_body( $request ) );

			if( $cache && $data )
				 set_transient( 'connection_wordpress_author' . $name, $data );
		}

		return $data;
	}
}

new Connection_Wordpress;

class Connection_Wordpress_Widget extends WP_Widget {

	function __construct() {
		parent::__construct( false, 'Connection - WordPress plugins' );
	}

	function widget( $args, $instance ) {
		extract( $args );
		$title = apply_filters( 'widget_title', $instance['title'] );

		echo $before_widget;
		if ( ! empty( $title ) )
			echo $before_title . $title . $after_title;

		$plugins = Connection_Wordpress::get_author_plugins( $instance[ 'author' ] );

		echo '<ul>';
		foreach( $plugins->plugins as $plugin ) {
			echo '<li><a href="http://wordpress.org/extend/plugins/' . $plugin->slug . '">' . $plugin->name . '</a></li>';
		}
		echo '</ul>';
		
		echo $after_widget;
	}

	function update( $new_instance, $old_instance ) {
		$instance = array();

		$instance['title'] = strip_tags( $new_instance['title'] );
		$instance['author'] = strip_tags( $new_instance['author'] );

		return $instance;
	}

	function form( $instance ) {
		if ( isset( $instance[ 'title' ] ) ) {
			$title = $instance[ 'title' ];
			$author = $instance[ 'author' ];
		}
		else {
			$title = __( 'New title', 'connections' );
			$author = '';
		}
		?>
		<p>
		<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label> 
		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
		</p>
		<p>
		<label for="<?php echo $this->get_field_id( 'author' ); ?>"><?php _e( 'Author:' ); ?></label> 
		<input class="widefat" id="<?php echo $this->get_field_id( 'author' ); ?>" name="<?php echo $this->get_field_name( 'author' ); ?>" type="text" value="<?php echo esc_attr( $author ); ?>" />
		</p>
		<?php 
	}
}