Automatic Soundcloud PHP Api authentication without user interaction - php

Question

In my application i want to use the Soundcloud API with my own Soundcloud user. The Soundcloud API authentication process involves a user being redirected to the Soundcloud homepage, login and authorize the application, so that the page can use the API for this user.
I want to automate the whole process, because my own user is the only user which gets authenticated. Is that possible?
Here is my code so far:
$soundcloud = new \Services_Soundcloud(
'**',
'**',
'http://**'
);
$authorizeUrl = $soundcloud->getAuthorizeUrl();
$accessToken = $soundcloud->accessToken();
try {
$me = json_decode($soundcloud->get('me'), true);
} catch (Services_Soundcloud_Invalid_Http_Response_Code_Exception $e) {
exit($e->getMessage());
}
But the line $accessToken = $soundcloud->accessToken(); throws an exception:
The requested URL responded with HTTP code 401.
500 Internal Server Error - Services_Soundcloud_Invalid_Http_Response_Code_Exception

Answer 1

Hi All,
Here I am going to share my experience with Soundcloud API (PHP)
See my Question: Link
Recently I started to work with Sound cloud API (PHP) and I decided to use PHP API by
https://github.com/mptre/php-soundcloud.
But When I was trying to get access token from Sound cloud server by this code:
// Get access token
try {
$accessToken = $soundcloud->accessToken($_GET['code']);
} catch (Services_Soundcloud_Invalid_Http_Response_Code_Exception $e) {
exit($e->getMessage());
}
I had check the $_GET['code'] value. But strange there is nothing in
$_GET['code'] this is blank. The Soundcloud was returning "The
requested URL responded with HTTP code 0" error. That time I was
testing Soundcloud on WAMP Localhost.
Allot of Goggling I found a solution to fix "The requested URL
responded with HTTP code 0" issue. I had download 'cacert.pem' file
and put inside our demo project folder (inside Services/Soundcloud/).
Then after I added some code in 'class Services_Soundcloud'
function protected function _request($url, $curlOptions = array()).
// My code in side function
$curlPath = realpath(getcwd().'\Services\cacert.pem');
$curlSSLSertificate = str_replace("\\", DIRECTORY_SEPARATOR, $curlPath);
curl_setopt($ch, CURLOPT_CAINFO, $curlSSLSertificate);
Saved 'class Services_Soundcloud' file and moved on live server. After
move my project from WAMP to Live server I start to check it again.
When I open my index.php it's ask me to login
I use my Facebook account to login.
after login it was asking to connect with Soundcloud
after connect everything working smooth, I got my info with
$me = json_decode($soundcloud->get('me'));
but a new problem start to occurring which was that my access token
being expire again and again. Then I use session :D
// code for access token
$code = $_GET['code'];
// Get access token
try {
if(!isset($_SESSION['token'])){
$accessToken = $soundcloud->accessToken($code);
$_SESSION['token'] = $accessToken['access_token'];
}else{
$soundcloud->setAccessToken($_SESSION['token']);
}
} catch (Services_Soundcloud_Invalid_Http_Response_Code_Exception $e) {
exit($e->getMessage());
}
And now everything working awesome. i can get all my details, tracks everything from SC server
Hope it will help you to fight with Soundcloud API Cheers!!!! :)

Answer 2

I'm looking for the same thing, but according to the soundcloud's api (check the Authenticating without the SoundCloud Connect Screen paragraph):
// this example is not supported by the PHP SDK
..and is not supported by the Javascript neither.
I've tryed to auth with python:
# create client object with app and user credentials
client = soundcloud.Client(client_id='YOUR_CLIENT_ID',
client_secret='YOUR_CLIENT_SECRET',
username='YOUR_USERNAME',
password='YOUR_PASSWORD')
..then the uploading python method:
# upload audio file
track = client.post('/tracks', track={
'title': 'This is my sound',
'asset_data': open('file.mp3', 'rb')
})
and it works just fine.
So, for now, you have 2 ways:
Use another language, Python or Ruby (the only 2 sdk that actually support this feature) or use a small python/ruby script as a bridge for this particular need;
Add this funcionaliy to the PHP SDK (i'm trying to do it quick'n'dirty, if i get success, i'll share ;)

Answer 3

There is no magic behind its implementation in Python and Ruby SDK's.
What's happening is that POST request is sent to http://api.soundcloud.com/oauth2/token with the following params:
client_id='YOUR_CLIENT_ID'
client_secret='YOUR_CLIENT_SECRET'
username='YOUR_USERNAME'
password='YOUR_PASSWORD'
And Content-Type: application/x-www-form-urlencoded
The response body contains access_token, that can be used for the further authorization of your requests. Thus, your GET request to /me endpoint will look like: /me?oauth_token=YOUR_ACCESS_TOKEN&client_id=YOUR_CLIENT_ID. (I believe, client_id is redundant here but all their apps keep adding it).
Here is the Postman Doc I created for demonstration: https://documenter.getpostman.com/view/3651572/soundcloud/7TT5oD9