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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Service
* @subpackage Audioscrobbler
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Audioscrobbler.php 18951 2009-11-12 16:26:19Z alexander $
*/
/**
* @see Zend_Http_Client
*/
require_once 'Zend/Http/Client.php';
/**
* @category Zend
* @package Zend_Service
* @subpackage Audioscrobbler
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Service_Audioscrobbler
{
/**
* Zend_Http_Client Object
*
* @var Zend_Http_Client
* @access protected
*/
protected $_client;
/**
* Array that contains parameters being used by the webservice
*
* @var array
* @access protected
*/
protected $_params;
/**
* Holds error information (e.g., for handling simplexml_load_string() warnings)
*
* @var array
* @access protected
*/
protected $_error = null;
/**
* Sets up character encoding, instantiates the HTTP client, and assigns the web service version.
*/
public function __construct()
{
$this->set('version', '1.0');
iconv_set_encoding('output_encoding', 'UTF-8');
iconv_set_encoding('input_encoding', 'UTF-8');
iconv_set_encoding('internal_encoding', 'UTF-8');
}
/**
* Set Http Client
*
* @param Zend_Http_Client $client
*/
public function setHttpClient(Zend_Http_Client $client)
{
$this->_client = $client;
}
/**
* Get current http client.
*
* @return Zend_Http_Client
*/
public function getHttpClient()
{
if($this->_client == null) {
$this->lazyLoadHttpClient();
}
return $this->_client;
}
/**
* Lazy load Http Client if none is instantiated yet.
*
* @return void
*/
protected function lazyLoadHttpClient()
{
$this->_client = new Zend_Http_Client();
}
/**
* Returns a field value, or false if the named field does not exist
*
* @param string $field
* @return string|false
*/
public function get($field)
{
if (array_key_exists($field, $this->_params)) {
return $this->_params[$field];
} else {
return false;
}
}
/**
* Generic set action for a field in the parameters being used
*
* @param string $field name of field to set
* @param string $value value to assign to the named field
* @return Zend_Service_Audioscrobbler Provides a fluent interface
*/
public function set($field, $value)
{
$this->_params[$field] = urlencode($value);
return $this;
}
/**
* Protected method that queries REST service and returns SimpleXML response set
*
* @param string $service name of Audioscrobbler service file we're accessing
* @param string $params parameters that we send to the service if needded
* @throws Zend_Http_Client_Exception
* @throws Zend_Service_Exception
* @return SimpleXMLElement result set
* @access protected
*/
protected function _getInfo($service, $params = null)
{
$service = (string) $service;
$params = (string) $params;
if ($params === '') {
$this->getHttpClient()->setUri("http://ws.audioscrobbler.com{$service}");
} else {
$this->getHttpClient()->setUri("http://ws.audioscrobbler.com{$service}?{$params}");
}
$response = $this->getHttpClient()->request();
$responseBody = $response->getBody();
if (preg_match('/No such path/', $responseBody)) {
/**
* @see Zend_Http_Client_Exception
*/
require_once 'Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('Could not find: ' . $this->_client->getUri());
} elseif (preg_match('/No user exists with this name/', $responseBody)) {
/**
* @see Zend_Http_Client_Exception
*/
require_once 'Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('No user exists with this name');
} elseif (!$response->isSuccessful()) {
/**
* @see Zend_Http_Client_Exception
*/
require_once 'Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('The web service ' . $this->_client->getUri() . ' returned the following status code: ' . $response->getStatus());
}
set_error_handler(array($this, '_errorHandler'));
if (!$simpleXmlElementResponse = simplexml_load_string($responseBody)) {
restore_error_handler();
/**
* @see Zend_Service_Exception
*/
require_once 'Zend/Service/Exception.php';
$exception = new Zend_Service_Exception('Response failed to load with SimpleXML');
$exception->error = $this->_error;
$exception->response = $responseBody;
throw $exception;
}
restore_error_handler();
return $simpleXmlElementResponse;
}
/**
* Utility function to get Audioscrobbler profile information (eg: Name, Gender)
*
* @return array containing information
*/
public function userGetProfileInformation()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/profile.xml";
return $this->_getInfo($service);
}
/**
* Utility function get this user's 50 most played artists
*
* @return array containing info
*/
public function userGetTopArtists()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/topartists.xml";
return $this->_getInfo($service);
}
/**
* Utility function to get this user's 50 most played albums
*
* @return SimpleXMLElement object containing result set
*/
public function userGetTopAlbums()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/topalbums.xml";
return $this->_getInfo($service);
}
/**
* Utility function to get this user's 50 most played tracks
* @return SimpleXML object containing resut set
*/
public function userGetTopTracks()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/toptracks.xml";
return $this->_getInfo($service);
}
/**
* Utility function to get this user's 50 most used tags
*
* @return SimpleXMLElement object containing result set
*/
public function userGetTopTags()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/tags.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns the user's top tags used most used on a specific artist
*
* @return SimpleXMLElement object containing result set
*/
public function userGetTopTagsForArtist()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/artisttags.xml";
$params = "artist={$this->get('artist')}";
return $this->_getInfo($service, $params);
}
/**
* Utility function that returns this user's top tags for an album
*
* @return SimpleXMLElement object containing result set
*/
public function userGetTopTagsForAlbum()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/albumtags.xml";
$params = "artist={$this->get('artist')}&album={$this->get('album')}";
return $this->_getInfo($service, $params);
}
/**
* Utility function that returns this user's top tags for a track
*
* @return SimpleXMLElement object containing result set
*/
public function userGetTopTagsForTrack()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/tracktags.xml";
$params = "artist={$this->get('artist')}&track={$this->get('track')}";
return $this->_getInfo($service, $params);
}
/**
* Utility function that retrieves this user's list of friends
* @return SimpleXMLElement object containing result set
*/
public function userGetFriends()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/friends.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of people with similar listening preferences to this user
*
* @return SimpleXMLElement object containing result set
*/
public function userGetNeighbours()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/neighbours.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of the 10 most recent tracks played by this user
*
* @return SimpleXMLElement object containing result set
*/
public function userGetRecentTracks()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/recenttracks.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of the 10 tracks most recently banned by this user
*
* @return SimpleXMLElement object containing result set
*/
public function userGetRecentBannedTracks()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/recentbannedtracks.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of the 10 tracks most recently loved by this user
*
* @return SimpleXMLElement object containing result set
*/
public function userGetRecentLovedTracks()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/recentlovedtracks.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of dates of available weekly charts for a this user
*
* Should actually be named userGetWeeklyChartDateList() but we have to follow audioscrobbler's naming
*
* @return SimpleXMLElement object containing result set
*/
public function userGetWeeklyChartList()
{
$service = "/{$this->get('version')}/user/{$this->get('user')}/weeklychartlist.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns weekly album chart data for this user
*
* @param integer $from optional UNIX timestamp for start of date range
* @param integer $to optional UNIX timestamp for end of date range
* @return SimpleXMLElement object containing result set
*/
public function userGetWeeklyAlbumChart($from = NULL, $to = NULL)
{
$params = "";
if ($from != NULL && $to != NULL) {
$from = (int)$from;
$to = (int)$to;
$params = "from={$from}&to={$to}";
}
$service = "/{$this->get('version')}/user/{$this->get('user')}/weeklyalbumchart.xml";
return $this->_getInfo($service, $params);
}
/**
* Utility function that returns weekly artist chart data for this user
*
* @param integer $from optional UNIX timestamp for start of date range
* @param integer $to optional UNIX timestamp for end of date range
* @return SimpleXMLElement object containing result set
*/
public function userGetWeeklyArtistChart($from = NULL, $to = NULL)
{
$params = "";
if ($from != NULL && $to != NULL) {
$from = (int)$from;
$to = (int)$to;
$params = "from={$from}&to={$to}";
}
$service = "/{$this->get('version')}/user/{$this->get('user')}/weeklyartistchart.xml";
return $this->_getInfo($service, $params);
}
/**
* Utility function that returns weekly track chart data for this user
*
* @param integer $from optional UNIX timestamp for start of date range
* @param integer $to optional UNIX timestamp for end of date range
* @return SimpleXMLElement object containing result set
*/
public function userGetWeeklyTrackChart($from = NULL, $to = NULL)
{
$params = "";
if ($from != NULL && $to != NULL) {
$from = (int)$from;
$to = (int)$to;
$params = "from={$from}&to={$to}";
}
$service = "/{$this->get('version')}/user/{$this->get('user')}/weeklytrackchart.xml";
return $this->_getInfo($service, $params);
}
/**
* Utility function that returns a list of artists similiar to this artist
*
* @return SimpleXMLElement object containing result set
*/
public function artistGetRelatedArtists()
{
$service = "/{$this->get('version')}/artist/{$this->get('artist')}/similar.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of this artist's top listeners
*
* @return SimpleXMLElement object containing result set
*/
public function artistGetTopFans()
{
$service = "/{$this->get('version')}/artist/{$this->get('artist')}/fans.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of this artist's top-rated tracks
*
* @return SimpleXMLElement object containing result set
*/
public function artistGetTopTracks()
{
$service = "/{$this->get('version')}/artist/{$this->get('artist')}/toptracks.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of this artist's top-rated albums
*
* @return SimpleXMLElement object containing result set
*/
public function artistGetTopAlbums()
{
$service = "/{$this->get('version')}/artist/{$this->get('artist')}/topalbums.xml";
return $this->_getInfo($service);
}
/**
* Utility function that returns a list of this artist's top-rated tags
*
* @return SimpleXMLElement object containing result set
*/
public function artistGetTopTags()
{
$service = "/{$this->get('version')}/artist/{$this->get('artist')}/toptags.xml";
return $this->_getInfo($service);
}
/**
* Get information about an album
*
* @return SimpleXMLElement
*/
public function albumGetInfo()
{
$service = "/{$this->get('version')}/album/{$this->get('artist')}/{$this->get('album')}/info.xml";
return $this->_getInfo($service);
}
/**
* Get top fans of the current track.
*
* @return SimpleXMLElement
*/
public function trackGetTopFans()
{
$service = "/{$this->get('version')}/track/{$this->get('artist')}/{$this->get('track')}/fans.xml";
return $this->_getInfo($service);
}
/**
* Get top tags of the current track.
*
* @return SimpleXMLElement
*/
public function trackGetTopTags()
{
$service = "/{$this->get('version')}/track/{$this->get('artist')}/{$this->get('track')}/toptags.xml";
return $this->_getInfo($service);
}
/**
* Get Top Tags.
*
* @return SimpleXMLElement
*/
public function tagGetTopTags()
{
$service = "/{$this->get('version')}/tag/toptags.xml";
return $this->_getInfo($service);
}
/**
* Get top albums by current tag.
*
* @return SimpleXMLElement
*/
public function tagGetTopAlbums()
{
$service = "/{$this->get('version')}/tag/{$this->get('tag')}/topalbums.xml";
return $this->_getInfo($service);
}
/**
* Get top artists by current tag.
*
* @return SimpleXMLElement
*/
public function tagGetTopArtists()
{
$service = "/{$this->get('version')}/tag/{$this->get('tag')}/topartists.xml";
return $this->_getInfo($service);
}
/**
* Get Top Tracks by currently set tag.
*
* @return SimpleXMLElement
*/
public function tagGetTopTracks()
{
$service = "/{$this->get('version')}/tag/{$this->get('tag')}/toptracks.xml";
return $this->_getInfo($service);
}
/**
* Get weekly chart list by current set group.
*
* @see set()
* @return SimpleXMLElement
*/
public function groupGetWeeklyChartList()
{
$service = "/{$this->get('version')}/group/{$this->get('group')}/weeklychartlist.xml";
return $this->_getInfo($service);
}
/**
* Retrieve weekly Artist Charts
*
* @param int $from
* @param int $to
* @return SimpleXMLElement
*/
public function groupGetWeeklyArtistChartList($from = NULL, $to = NULL)
{
if ($from != NULL && $to != NULL) {
$from = (int)$from;
$to = (int)$to;
$params = "from={$from}&$to={$to}";
} else {
$params = "";
}
$service = "/{$this->get('version')}/group/{$this->get('group')}/weeklyartistchart.xml";
return $this->_getInfo($service, $params);
}
/**
* Retrieve Weekly Track Charts
*
* @param int $from
* @param int $to
* @return SimpleXMLElement
*/
public function groupGetWeeklyTrackChartList($from = NULL, $to = NULL)
{
if ($from != NULL && $to != NULL) {
$from = (int)$from;
$to = (int)$to;
$params = "from={$from}&to={$to}";
} else {
$params = "";
}
$service = "/{$this->get('version')}/group/{$this->get('group')}/weeklytrackchart.xml";
return $this->_getInfo($service, $params);
}
/**
* Retrieve Weekly album charts.
*
* @param int $from
* @param int $to
* @return SimpleXMLElement
*/
public function groupGetWeeklyAlbumChartList($from = NULL, $to = NULL)
{
if ($from != NULL && $to != NULL) {
$from = (int)$from;
$to = (int)$to;
$params = "from={$from}&to={$to}";
} else {
$params = "";
}
$service = "/{$this->get('version')}/group/{$this->get('group')}/weeklyalbumchart.xml";
return $this->_getInfo($service, $params);
}
/**
* Saves the provided error information to this instance
*
* @param integer $errno
* @param string $errstr
* @param string $errfile
* @param integer $errline
* @param array $errcontext
* @return void
*/
protected function _errorHandler($errno, $errstr, $errfile, $errline, array $errcontext)
{
$this->_error = array(
'errno' => $errno,
'errstr' => $errstr,
'errfile' => $errfile,
'errline' => $errline,
'errcontext' => $errcontext
);
}
/**
* Call Intercept for set($name, $field)
*
* @param string $method
* @param array $args
* @return Zend_Service_Audioscrobbler
*/
public function __call($method, $args)
{
if(substr($method, 0, 3) !== "set") {
require_once "Zend/Service/Exception.php";
throw new Zend_Service_Exception(
"Method ".$method." does not exist in class Zend_Service_Audioscrobbler."
);
}
$field = strtolower(substr($method, 3));
if(!is_array($args) || count($args) != 1) {
require_once "Zend/Service/Exception.php";
throw new Zend_Service_Exception(
"A value is required for setting a parameter field."
);
}
$this->set($field, $args[0]);
return $this;
}
}
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