api.get.php

<?php
/**
 * Copyright (c) 2016 AvikB, some rights reserved.
 *  Copyright under Creative Commons Attribution-ShareAlike 3.0 Unported,
 *  for details visit: https://creativecommons.org/licenses/by-sa/3.0/
 *
 * @Contributors:
 * Created by AvikB for noncommercial MusicBee project.
 *  Spelling mistakes and fixes from community members.
 *
 */

/**
 * @author Avik B
 * @version 1.0
 */

/**
 * All data are JSON formatted. Currently JSON is the only format we serve, maybe XML in future... :S
 * For result list Maximum limit is 20, default is 5
 *
 *****************************************************************************************************
 * API Links:
 *****************************************************************************************************
 *
 * MusicBee beta, stable and patch release info
 *      http://getmusicbee.com/api/1.0/?type=json&action=release-info
 *
 * ADDON Data
 *      http://getmusicbee.com/api/1.0/?type=json&action=addon-info&id=1
 *
 * ADDON List by UserID
 *      http://getmusicbee.com/api/1.0/?type=json&action=addon-list&authorid=1&limit=10
 *
 * ADDON Search by Term
 *      http://getmusicbee.com/api/1.0/?type=json&action=addon-search&search=windows&page=1&limit=10
 *
 */

require_once $_SERVER['DOCUMENT_ROOT'].'/functions.php';
require_once $link['root'] . 'classes/Addon.php';
require_once $link['root'] . 'classes/Search.php';

const default_result_limit = 5;
const max_result_limit = 20;


if(isset($params[3])) {
	//remove the ? sign from the string and convert the url paramenter into an array
	parse_str (str_replace ("?", "", $params[3]), $url_params);

	if (isset($url_params['type']) && isset($url_params['action']))
	{
		//if the request is for JSON then intialize json parsing
		if ($url_params['type'] == "json")
		{
			//switch between actions
			switch ($url_params['action']) {
				case 'release-info':
					releaseInfo();
					break;

				case 'addon-info':
					addonInfo();
					break;

				case 'addon-list':
					addonList();
					break;

				case 'addon-search':
					addonSearchJson();
					break;

				default:
					# code...
					break;
			}
		}
		else if ($url_params['type'] == "html")
		{
			//switch between actions
			switch ($url_params['action']) {
				case 'addon-search-autocomplete':
					addonSearchAutoComplete();
					break;

				default:
					# code...
					break;
			}
		}
	}

}
/**
 * Generate MusicBee beta, stable and patch release info
 */
function releaseInfo()
{
	global $mb;
	printJson(json_encode($mb['musicbee_download']));
}

/**
 * Search addons by search term, filter between addon type
 */

function addonSearchJson()
{
	printJson(json_encode(addonSearch()));
}

function addonSearchAutoComplete()
{
	global $lang;
	$searchData = addonSearch();


	foreach ($searchData['addon_data']['result'] as $result)
	{
		$thumb = Format::ImgurResizer($result['thumbnail'],"s");
		$title = $result['addon_title'];
		$author = $lang['addon_15'].' '.$result['membername'];
		$url = addonUrlGenerator($result);
		$uid = md5($title.$author);

		$html = <<<HTML
<li id="$uid">
	<ul>
		<li>
			<img src="$thumb">
		</li>
		<li>
			<p class="title"><a href="$url">$title</a></p>
			<p>$author</p>
		</li>	
	</ul>
	
</li>
HTML;
		echo $html;
		//var_dump($result);
	}

	exit();
}

function addonSearch()
{
	global $url_params, $mb, $link;

	$limit = (isset($url_params['limit']))?checkResultLimit($url_params['limit']): $mb['view_range']['addon_view_range'];

	if(isset($url_params['search']))
	{
		if(isset($url_params['cat'])){
			if($url_params['cat'] == 'all'){
				$url_params['cat'] = null;
			}
		} else {
			$url_params['cat'] = null;
		}

		if (isset($url_params['page']))
		{
			if(is_int($url_params['page']) || ctype_digit($url_params['page']))
			{
				$offset = ($url_params['page'] - 1) * $limit;
				$data['current_page'] = $url_params['page'];
			}
			else
			{
				$offset = 0;
				$data['current_page'] = 1;
			}
		}
		else
		{
			$offset = 0;
			$data['current_page'] = 1;
		}

		$searchinput['query'] = (!empty($url_params['search']))? htmlspecialchars(trim($url_params['search']), ENT_QUOTES, "UTF-8"): '';

		$search = new Search();

		//get all the addon filtered by category/query and other
		$data['addon_data'] = $search->searchAddons($searchinput['query'],$url_params['cat'],'1', null, $offset, $limit);

		//Calculate total number of page required
		$data['total_page'] = ceil ($data['addon_data']['row_count'] / $limit);

		$data['page_url'] = $link['addon']['home'] . "s/?q=" . urlencode ($searchinput['query']) . "&type=" . $url_params['cat'];
		$data['prev_page_url'] = ($data['current_page']==1)? null : $data['page_url'].'&p='.($data['current_page']-1);
		$data['next_page_url'] = ($data['total_page']==$data['current_page'])? null : $data['page_url'].'&p='.($data['current_page']+1);


		return $data;
	}
}

/**
 * Generate a List of Addon submitted by a member, you will need memberid/userid
 */
function addonList()
{
	global $url_params;

	if(isset($url_params['authorid']))
	{
		$addon = new Addon();
		$limit = (isset($url_params['limit']))? checkResultLimit($url_params['limit']) : default_result_limit;

		$data = $addon->getAddonListByMember ($url_params['authorid'], $limit);

		printJson(json_encode($data));
	}
}

/**
 * Get ALL the info about an addon, you will need addon id
 */
function addonInfo()
{
	global $url_params;

	if(isset($url_params['id']))
	{
		$addon = new Addon();
		$addon_data = $addon->getAddonData($url_params['id']);

		printJson(json_encode($addon_data));
	}
}

function checkResultLimit($limit)
{
	if(ctype_digit($limit))
	{
		if($limit > max_result_limit)
		{
			return max_result_limit;
		}
	}

	return default_result_limit;
}

/**
 * Prints the data to a human eye, all in JSON
 * @param $encodedData
 */
function printJson($encodedData)
{
	header('Content-Type: application/json');
	print_r($encodedData);
}