Current File : //data/www_bck/varak.net_bck/gnufm.varak.net/api/ArtistXML.php
<?php
/* GNU FM -- a free network service for sharing your music listening habits
Copyright (C) 2009 Free Software Foundation, Inc
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
require_once($install_path . '/data/Artist.php');
require_once('xml.php');
/**
* Class with functions that returns XML-formatted data for artists.
*
* These functions are mainly used by web service methods.
*
* @package API
*/
class ArtistXML {
/**
* Provides artist information in XML format
*
* @param string $api_key A 32 character API key (currently not checked)
* @param string $artistName The name of the artist to retrieve info for
* @param string $mbid A music brainz ID (optional), if supplied this will be preferred to the artist name
* @param string $lang A 2 character ISO 639 alpha-2 code indicating the language to return the information in
* @return A SimpleXMLElement containing the artist's information
*/
public static function getInfo($artistName, $api_key = false, $mbid = false, $lang = 'en') {
// We assume $api_key is valid and set at this point
if (!isset($artistName) && !isset($mbid)) {
echo XML::error('failed', '7', 'Invalid resource specified');
return;
}
try {
$artist = new Artist($artistName, $mbid);
} catch (Exception $e) {
return XML::error('failed', '7', 'Invalid resource specified');
}
$xml = new SimpleXMLElement('<lfm status="ok"></lfm>');
$artistXml = $xml->addChild('artist', null);
$artistXml->addChild('name', $artist->name);
$artistXml->addChild('mbid', $artist->mbid);
$artistXml->addChild('url', $artist->getURL());
$artistXml->addChild('streamable', $artist->streamable);
$bio = $artistXml->addChild('bio', null);
$bio->addChild('published', $artist->bio_published);
$bio->addChild('summary', $artist->bio_summary);
$bio->addChild('content', $artist->bio_content);
return $xml;
}
public static function getTopTracks($artistname, $limit, $streamable, $page, $cache) {
global $adodb;
$offset = ($page - 1) * $limit;
try {
$artist = new Artist($artistname);
$res = $artist->getTopTracks($limit, $offset, $streamable, null, null, $cache);
} catch (Exception $e) {
return XML::error('error', '7', 'Invalid resource specified');
}
// Get total track count, using subquery to get distinct row(artist, track) count
$query = 'SELECT count(*) FROM (SELECT count(*) FROM Scrobbles s';
if($streamable) {
$query .= ' WHERE ROW(s.artist, s.track) IN (SELECT artist_name, name FROM Track WHERE streamable=1)';
$andquery = True;
} else {
$query .= ' WHERE';
$andquery = False;
}
$andquery ? $query .= ' AND' : null;
$query .= ' artist=' . $adodb->qstr($artist->name) . ' GROUP BY s.track, s.artist) c';
$total = $adodb->CacheGetOne($cache, $query);
$totalPages = ceil($total/$limit);
$xml = new SimpleXMLElement('<lfm status="ok"></lfm>');
$root = $xml->addChild('toptracks', null);
$root->addAttribute('artist', $artist->name);
$root->addAttribute('page', $page);
$root->addAttribute('perPage', $limit);
$root->addAttribute('totalPages', $totalPages);
$root->addAttribute('total', $total);
$i = $offset + 1;
foreach($res as &$row) {
try {
$track = new Track($row['track'], $row['artist']);
$track_node = $root->addChild('track', null);
$track_node->addAttribute('rank', $i);
$track_node->addChild('name', repamp($track->name));
$track_node->addChild('duration', $track->duration);
$track_node->addChild('playcount', $row['freq']);
$track_node->addChild('listeners', $row['listeners']);
$track_node->addChild('mbid', $track->mbid);
$track_node->addChild('url', repamp($row['trackurl']));
$track_node->addChild('streamable', $track->streamable);
$artist_node = $track_node->addChild('artist', null);
$artist_node->addChild('name', repamp($artist->name));
$artist_node->addChild('mbid', $artist->mbid);
$artist_node->addChild('url', repamp($row['artisturl']));
$image_small = $track_node->addChild('image', $artist->image_small);
$image_small->addAttribute('size', 'small');
$image_medium = $track_node->addChild('image', $artist->image_medium);
$image_medium->addAttribute('size', 'medium');
$image_large = $track_node->addChild('image', $artist->image_large);
$image_large->addAttribute('size', 'large');
} catch (Exception $e) {}
$i++;
}
return $xml;
}
public static function getTopFans($artistname, $limit, $cache) {
global $adodb;
try {
$artist = new Artist($artistname);
$res = $artist->getTopListeners($limit, 0, False, null, null, $cache);
} catch (Exception $e) {
return XML::error('error', '7', 'Invalid resource specified');
}
$xml = new SimpleXMLElement('<lfm status="ok"></lfm>');
$root = $xml->addChild('topfans', null);
$root->addAttribute('artist', $artist->name);
$i = $offset + 1;
foreach($res as &$row) {
try {
$user = new User($row['username']);
$user_node = $root->addChild('user', null);
$user_node->addChild('name', $user->name);
$user_node->addChild('realname', $user->fullname);
$user_node->addChild('url', repamp($user->getURL()));
$image_small = $user_node->addChild('image', null);
$image_small->addAttribute('size', 'small');
$image_medium = $user_node->addChild('image', null);
$image_medium->addAttribute('size', 'medium');
$image_large = $user_node->addChild('image', null);
$image_large->addAttribute('size', 'large');
$user_node->addChild('weight', $row['freq']);
} catch (Exception $e) {}
$i++;
}
return $xml;
}
public static function getTopTags($artistName, $limit, $cache) {
try {
$artist = new Artist($artistName);
$res = $artist->getTopTags($limit, 0, $cache);
} catch (Exception $e) {
return(XML::error('failed', '7', 'Invalid resource specified'));
}
if(!$res) {
return(XML::error('failed', '6', 'No tags for this artist'));
}
$xml = new SimpleXMLElement('<lfm status="ok"></lfm>');
$root = $xml->addChild('toptags', null);
$root->addAttribute('artist', $artist->name);
foreach ($res as &$row) {
$tag_node = $root->addChild('tag', null);
$tag_node->addChild('name', repamp($row['tag']));
$tag_node->addChild('count', $row['freq']);
$tag_node->addChild('url', Server::getTagURL($row['tag']));
}
return $xml;
}
public static function getTags($artistName, $userid, $limit, $cache) {
try {
$artist = new Artist($artistName);
$res = $artist->getTags($userid, $limit, 0, $cache);
} catch (Exception $e) {
return(XML::error('failed', '7', 'Invalid resource specified'));
}
if(!$res) {
return(XML::error('failed', '6', 'No tags for this artist'));
}
$xml = new SimpleXMLElement('<lfm status="ok"></lfm>');
$root = $xml->addChild('tags', null);
$root->addAttribute('artist', repamp($artist->name));
foreach($res as &$row) {
$tag_node = $root->addChild('tag', null);
$tag_node->addChild('name', repamp($row['tag']));
$tag_node->addChild('url', Server::getTagURL($row['tag']));
}
return $xml;
}
public static function getFlattr($artistName) {
try {
$artist = new Artist($artistName);
} catch (Exception $e) {
return(XML::error('failed', '7', 'Invalid resource specified'));
}
$xml = new SimpleXMLElement('<lfm status="ok"></lfm>');
$root = $xml->addChild('flattr', null);
$root->addAttribute('artist', $artist->name);
$root->addChild('flattr_uid', $artist->flattr_uid);
return $xml;
}
public static function search($artistQuery, $streamable) {
$res = Server::search($artistQuery, "artist", 40, $streamable);
$xml = new SimpleXMLElement('<lfm status="ok"></lfm>');
$root = $xml->addChild('results', null);
$root->addAttribute('xmlns:opensearch', 'http://a9.com/-/spec/opensearch/1.1/');
$root->addAttribute('for', $artistQuery);
$matches = $root->addChild('artistmatches', null);
foreach($res as &$row) {
$artist = $matches->addChild('artist', null);
$artist->addChild('name', repamp($row['name']));
$artist->addChild('mbid', $row['mbid']);
$artist->addChild('url', $row['url']);
$artist->addChild('streamable', $row['streamable'] ? "1" : "0");
$image_small = $artist->addChild('image', $row['image_small']);
$image_small->addAttribute('size', 'small');
$image_medium = $artist->addChild('image', $row['image_medium']);
$image_medium->addAttribute('size', 'medium');
$image_large = $artist->addChild('image', $row['image_large']);
$image_large->addAttribute('size', 'large');
}
return $xml;
}
}
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