Crappy module

gistfile1.php

<?php
/*
Plugin Name: LastFM
Plugin URI: 
Description: Displays data from LastFM
Author: damianzaremba
Author URI: http://damianzaremba.co.uk
Version: 1.0
License: GPL3
*/

/*
 * Copyright 2011 Damian Zaremba <[email protected]>
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

function lastfm_handler($atts) {
	$api_url = "http://ws.audioscrobbler.com/2.0/";
	$api_key = "notthis";

	if(!array_key_exists("username", $atts)){
		print "lastfm needs a username!";
		return;
	}else{
		$username = $atts['username'];
	}

	if(!array_key_exists("limit", $atts)){
		$limit = 20;
	}else{
		$limit = $atts['limit'];
	}

	if(!array_key_exists("period", $atts)){
		$period = "overall";
	}else{
		$period = $atts['period'];
		if($period !== "overall" && $period !== "7day" && $period !== "3month" && $period !== "6month" && $period !== "12month"){
			print "Invalid period specified to lastfm";
			return;
		}
	}

	if(!array_key_exists("type", $atts)){
		$type = "recentTracks";
	}else{
		$type = $atts['type'];
	}
	
	$api_call = $api_url . "?api_key=" . urlencode($api_key);
	$api_call .= "&user=" . urlencode($username);
	$api_call .= "&limit=" . urlencode($limit);
	$api_call .= "&period=" . urlencode($period);
	
	if($type == "topArtists"){
		$api_call .= "&method=user.getTopArtists";
	}else if($type == "recentTracks"){
		$api_call .= "&method=user.getRecentTracks";
	}else if($type == "topAlbums"){
		$api_call .= "&method=user.getTopAlbums";
	}else if($type == "topTracks"){
		$api_call .= "&method=user.getTopTracks";
	}else{
		print "Invalid type specified to lastfm";
		return;
	}

	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $api_call);
	curl_setopt($ch, CURLOPT_REFERER, get_bloginfo('siteurl'));
	curl_setopt($ch, CURLOPT_HEADER, 0);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, True);
	curl_setopt($ch, CURLOPT_TIMEOUT, 2);
	$data = curl_exec($ch);
	curl_close($ch);

	if(!isset($data) || empty($data)) {
		print "<!-- Something bad happended during loading (lastfm) -->";
		return False;
	}

	try {
		$xml = @new SimpleXMLElement($data);
	} catch (Exception $e) {}

	if(!isset($xml)) {
		print "<!-- Something bad happended during parsing xml (lastfm) -->";
		return False;
	}

	$status = (string) $xml->attributes()->{"status"};
	if($status !== "ok"){
		print "<!-- Something bad happended (status not ok) (lastfm) -->";
		return False;
	}

	if($type == "topArtists"){
		$data = $xml->{"topartists"}->{"artist"};
	}else if($type == "recentTracks"){
		$data = $xml->{"recenttracks"}->{"track"};
	}else if($type == "topAlbums"){
		$data = $xml->{"topalbums"}->{"album"};
	}else if($type == "topTracks"){
		$data = $xml->{"toptracks"}->{"track"};
	}

	$output = '<div class="lastfm_content">';
	foreach($data as $id => $album){
		foreach($album->{"image"} as $id => $image){
			$size = (string) $image->attributes()->{"size"};
			$image_url = (string) $image->{0};
			$album_name = (string) $album->{"name"};
			$album_url = (string) $album->{"url"};

			if($size === "medium") {
				$output .= '<a href="' . $album_url . '" title="' . $album_name . '"><img src="' . $image_url . '" alt="' . $album_name . '" width="64px" height="64px" /></a>';
				break;
			}
		}
	}
	$output .= '</div>';
	
	return $output;
}

add_shortcode('lastfm', 'lastfm_handler');
?>