mirror of
https://github.com/koel/koel
synced 2024-11-24 21:23:06 +00:00
334 lines
9 KiB
PHP
334 lines
9 KiB
PHP
<?php
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namespace App\Services;
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use Exception;
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use GuzzleHttp\Client;
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use Illuminate\Support\Facades\Cache;
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use Log;
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class Lastfm extends RESTfulService
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{
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/**
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* Specify the response format, since Last.fm only returns XML.
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*
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* @var string
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*/
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protected $responseFormat = 'xml';
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/**
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* Override the key param, since, again, Lastfm wants to be different.
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*
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* @var string
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*/
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protected $keyParam = 'api_key';
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/**
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* Construct an instance of Lastfm service.
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*
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* @param string $key Last.fm API key.
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* @param string $secret Last.fm API shared secret.
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* @param Client $client The Guzzle HTTP client.
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*/
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public function __construct($key = null, $secret = null, Client $client = null)
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{
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parent::__construct(
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$key ?: config('koel.lastfm.key'),
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$secret ?: config('koel.lastfm.secret'),
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'https://ws.audioscrobbler.com/2.0',
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$client ?: new Client()
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);
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}
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/**
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* Determine if our application is using Last.fm.
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*
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* @return bool
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*/
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public function used()
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{
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return config('koel.lastfm.key') && config('koel.lastfm.secret');
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}
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/**
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* Determine if Last.fm integration is enabled.
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*
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* @return bool
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*/
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public function enabled()
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{
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return $this->getKey() && $this->getSecret();
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}
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/**
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* Get information about an artist.
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*
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* @param $name string Name of the artist
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*
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* @return array|false
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*/
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public function getArtistInfo($name)
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{
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if (!$this->enabled()) {
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return false;
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}
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$name = urlencode($name);
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try {
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$cacheKey = md5("lastfm_artist_$name");
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if ($response = Cache::get($cacheKey)) {
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$response = simplexml_load_string($response);
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} else {
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if ($response = $this->get("?method=artist.getInfo&autocorrect=1&artist=$name")) {
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Cache::put($cacheKey, $response->asXML(), 24 * 60 * 7);
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}
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}
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$response = json_decode(json_encode($response), true);
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if (!$response || !$artist = array_get($response, 'artist')) {
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return false;
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}
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return [
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'url' => array_get($artist, 'url'),
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'image' => count($artist['image']) > 3 ? $artist['image'][3] : $artist['image'][0],
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'bio' => [
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'summary' => $this->formatText(array_get($artist, 'bio.summary')),
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'full' => $this->formatText(array_get($artist, 'bio.content')),
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],
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];
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} catch (Exception $e) {
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Log::error($e);
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return false;
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}
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}
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/**
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* Get information about an album.
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*
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* @param string $name Name of the album
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* @param string $artistName Name of the artist
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*
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* @return array|false
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*/
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public function getAlbumInfo($name, $artistName)
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{
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if (!$this->enabled()) {
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return false;
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}
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$name = urlencode($name);
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$artistName = urlencode($artistName);
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try {
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$cacheKey = md5("lastfm_album_{$name}_{$artistName}");
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if ($response = Cache::get($cacheKey)) {
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$response = simplexml_load_string($response);
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} else {
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if ($response = $this->get("?method=album.getInfo&autocorrect=1&album=$name&artist=$artistName")) {
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Cache::put($cacheKey, $response->asXML(), 24 * 60 * 7);
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}
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}
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$response = json_decode(json_encode($response), true);
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if (!$response || !$album = array_get($response, 'album')) {
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return false;
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}
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return [
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'url' => array_get($album, 'url'),
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'image' => count($album['image']) > 3 ? $album['image'][3] : $album['image'][0],
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'wiki' => [
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'summary' => $this->formatText(array_get($album, 'wiki.summary')),
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'full' => $this->formatText(array_get($album, 'wiki.content')),
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],
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'tracks' => array_map(function ($track) {
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return [
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'title' => $track['name'],
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'length' => (int) $track['duration'],
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'url' => $track['url'],
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];
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}, array_get($album, 'tracks.track', [])),
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];
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} catch (Exception $e) {
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Log::error($e);
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return false;
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}
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}
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/**
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* Get Last.fm's session key for the authenticated user using a token.
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*
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* @param string $token The token after successfully connecting to Last.fm
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*
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* @link http://www.last.fm/api/webauth#4
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*
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* @return string The token key
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*/
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public function getSessionKey($token)
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{
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$query = $this->buildAuthCallParams([
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'method' => 'auth.getSession',
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'token' => $token,
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], true);
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try {
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$response = $this->get("/?$query", [], false);
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return (string) $response->session->key;
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} catch (Exception $e) {
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Log::error($e);
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return false;
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}
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}
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/**
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* Scrobble a song.
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*
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* @param string $artist The artist name
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* @param string $track The track name
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* @param string|int $timestamp The UNIX timestamp
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* @param string $album The album name
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* @param string $sk The session key
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*
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* @return bool
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*/
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public function scrobble($artist, $track, $timestamp, $album, $sk)
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{
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$params = compact('artist', 'track', 'timestamp', 'sk');
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if ($album) {
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$params['album'] = $album;
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}
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$params['method'] = 'track.scrobble';
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try {
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return (bool) $this->post('/', $this->buildAuthCallParams($params), false);
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} catch (Exception $e) {
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Log::error($e);
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return false;
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}
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}
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/**
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* Love or unlove a track on Last.fm.
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*
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* @param string $track The track name
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* @param string $artist The artist's name
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* @param string $sk The session key
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* @param bool $love Whether to love or unlove. Such cheesy terms... urrgggh
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*
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* @return bool
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*/
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public function toggleLoveTrack($track, $artist, $sk, $love = true)
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{
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$params = compact('track', 'artist', 'sk');
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$params['method'] = $love ? 'track.love' : 'track.unlove';
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try {
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return (bool) $this->post('/', $this->buildAuthCallParams($params), false);
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} catch (Exception $e) {
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Log::error($e);
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return false;
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}
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}
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/**
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* Update a track's "now playing" on Last.fm.
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*
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* @param string $artist Name of the artist
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* @param string $track Name of the track
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* @param string $album Name of the album
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* @param int|float $duration Duration of the track, in seconds
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* @param string $sk The session key
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*
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* @return bool
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*/
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public function updateNowPlaying($artist, $track, $album, $duration, $sk)
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{
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$params = compact('artist', 'track', 'duration', 'sk');
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$params['method'] = 'track.updateNowPlaying';
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if ($album) {
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$params['album'] = $album;
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}
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try {
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return (bool) $this->post('/', $this->buildAuthCallParams($params), false);
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} catch (Exception $e) {
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Log::error($e);
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return false;
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}
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}
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/**
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* Build the parameters to use for _authenticated_ Last.fm API calls.
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* Such calls require:
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* - The API key (api_key)
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* - The API signature (api_sig).
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*
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* @link http://www.last.fm/api/webauth#5
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*
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* @param array $params The array of parameters.
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* @param bool $toString Whether to turn the array into a query string
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*
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* @return array|string
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*/
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public function buildAuthCallParams(array $params, $toString = false)
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{
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$params['api_key'] = $this->getKey();
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ksort($params);
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// Generate the API signature.
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// @link http://www.last.fm/api/webauth#6
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$str = '';
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foreach ($params as $name => $value) {
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$str .= $name.$value;
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}
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$str .= $this->getSecret();
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$params['api_sig'] = md5($str);
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if (!$toString) {
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return $params;
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}
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$query = '';
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foreach ($params as $key => $value) {
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$query .= "$key=$value&";
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}
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return rtrim($query, '&');
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}
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/**
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* Correctly format a string returned by Last.fm.
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*
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* @param string $str
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*
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* @return string
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*/
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protected function formatText($str)
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{
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if (!$str) {
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return '';
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}
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return trim(str_replace('Read more on Last.fm', '', nl2br(strip_tags(html_entity_decode($str)))));
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}
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}
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