Create playlist in SoundCloud with PHP - php

Question

I am creating a music website on which i have integrated SoundCloud API.
Now I want to create a playlist at run time and attach tracks to that playlist.
My code is following:
class Soundcloud {
const VERSION = '1.1';
public static $urls = array(
'api' => 'http://api.soundcloud.com/',
'oauth' => array(
'access' => 'http://api.soundcloud.com/oauth/access_token',
'authorize' => 'http://soundcloud.com/oauth/authorize',
'request' => 'http://api.soundcloud.com/oauth/request_token'
)
);
function __construct($consumer_key, $consumer_secret, $oauth_token = null, $oauth_token_secret = null) {
$this->sha1_method = new OAuthSignatureMethod_HMAC_SHA1();
$this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
if (!empty($oauth_token) && !empty($oauth_token_secret)) {
$this->token = new OAuthConsumer($oauth_token, $oauth_token_secret);
} else {
$this->token = null;
}
}
function get_authorize_url($token) {
if (is_array($token)) {
$token = $token['oauth_token'];
}
return $this->_get_url('authorize') . '?oauth_token=' . $token;
}
function get_request_token($oauth_callback) {
$request = $this->request(
$this->_get_url('request'),
'POST',
array('oauth_callback' => $oauth_callback)
);
$token = $this->_parse_response($request);
$this->token = new OAuthConsumer(
$token['oauth_token'],
$token['oauth_token_secret']
);
return $token;
}
function get_access_token($token) {
$response = $this->request(
$this->_get_url('access'),
'POST',
array('oauth_verifier' => $token)
);
$token = $this->_parse_response($response);
$this->token = new OAuthConsumer(
$token['oauth_token'],
$token['oauth_token_secret']
);
return $token;
}
function upload_track($post_data, $asset_data_mime = null, $artwork_data_mime = null) {
$body = '';
$boundary = '---------------------------' . md5(rand());
$crlf = "\r\n";
$headers = array(
'Content-Type' => 'multipart/form-data; boundary=' . $boundary,
'Content-Length' => 0
);
foreach ($post_data as $key => $val) {
if (in_array($key, array('track[asset_data]', 'track[artwork_data]'))) {
$body .= '--' . $boundary . $crlf;
$body .= 'Content-Disposition: form-data; name="' . $key . '"; filename="' . basename($val) . '"' . $crlf;
$body .= 'Content-Type: ' . (($key == 'track[asset_data]') ? $asset_data_mime : $artwork_data_mime) . $crlf;
$body .= $crlf;
$body .= file_get_contents($val) . $crlf;
} else {
$body .= '--' . $boundary . $crlf;
$body .= 'Content-Disposition: form-data; name="' . $key .'"' . $crlf;
$body .= $crlf;
$body .= $val . $crlf;
}
}
$body .= '--' . $boundary . '--' . $crlf;
$headers['Content-Length'] += strlen($body);
return $this->request('tracks', 'POST', $body, $headers);
}
function request($resource, $method = 'GET', $args = array(), $headers = null) {
if (!preg_match('/http:\/\//', $resource)) {
$url = self::$urls['api'] . $resource;
} else {
$url = $resource;
}
if (stristr($headers['Content-Type'], 'multipart/form-data')) {
$body = false;
} elseif (stristr($headers['Content-Type'], 'application/xml')) {
$body = false;
} else {
$body = true;
}
$request = OAuthRequest::from_consumer_and_token(
$this->consumer,
$this->token,
$method,
$url,
($body === true) ? $args : null
);
$request->sign_request($this->sha1_method, $this->consumer, $this->token);
return $this->_curl(
$request->get_normalized_http_url(),
$request,
$args,
$headers
);
}
private function _build_header($headers) {
$h = array();
if (count($headers) > 0) {
foreach ($headers as $key => $val) {
$h[] = $key . ': ' . $val;
}
return $h;
} else {
return $headers;
}
}
private function _curl($url, $request, $post_data = null, $headers = null) {
$ch = curl_init();
$mime = (stristr($headers['Content-Type'], 'multipart/form-data')) ? true : false;
$headers['User-Agent'] = (isset($headers['User-Agent']))
? $headers['User-Agent']
: 'PHP SoundCloud/' . self::VERSION;
$headers['Content-Length'] = (isset($headers['Content-Length']))
? $headers['Content-Length']
: 0;
$headers = (is_array($headers)) ? $this->_build_header($headers) : array();
$options = array(
CURLOPT_URL => $url,
CURLOPT_HEADER => false,
CURLOPT_RETURNTRANSFER => true
);
if (in_array($request->get_normalized_http_method(), array('DELETE', 'PUT'))) {
$options[CURLOPT_CUSTOMREQUEST] = $request->get_normalized_http_method();
$options[CURLOPT_POSTFIELDS] = '';
}
if (is_array($post_data) && count($post_data) > 0 || $mime === true) {
$options[CURLOPT_POSTFIELDS] = (is_array($post_data) && count($post_data) == 1)
? ((isset($post_data[key($post_data)])) ? $post_data[key($post_data)] : $post_data)
: $post_data;
$options[CURLOPT_POST] = true;
}
$headers[] = $request->to_header();
$options[CURLOPT_HTTPHEADER] = $headers;
curl_setopt_array($ch, $options);
$response = curl_exec($ch);
$this->http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
return $response;
}
private function _get_url($type) {
return (array_key_exists($type, self::$urls['oauth']))
? self::$urls['oauth'][$type]
: false;
}
private function _parse_response($response) {
parse_str($response, $output);
return (count($output) > 0) ? $output : false;
}
}
and
$soundcloud = new Soundcloud(
$consumer_key,
$consumer_secret,
$_SESSION['oauth_access_token'],
$_SESSION['oauth_access_token_secret']
);
$post_data1 = array('playlist[title]'=>'This is my set' );
$headers = array('Content-Type' => 'application/xml');
$soundcloud->request('playlists', 'POST', $post_data1,$headers);
But it's not creating any playlist.

Answer 1

Shouldn't your class (class Soundcloud) extend something?

Answer 2

Shouldn't your class actually generate a playlist file? Have you heard of XSPF?