[Symfony 2.8] Oauth Twitch doesn't working :(

API
1

Hello guys!

I’m very new in API and also as developers :confused: At first I try to find the answer on the forum and google without success :frowning:

I would like to add Twitch to my website with the New API.
My first step was to read the Documentation regarding API & Authentification Guide and then the Code samples available here: https://dev.twitch.tv/get-started
As I using Symfony 2.8, I took the PHP code which I adapted for Symfony as below (I’m really sorry to put my code like that):

My Twig view:

 <div class="tab-pane fade" id="stream">
                {{ render(controller('ISUStreamBundle:Stream:twitchConnexion') }}
</div>

My Controller:

/*
 * @Route("/account_authorization/twitch", options={"expose"=true}, name="twitch_account_oauth")
 */
public function twitchConnexionAction(Request $request)
	{	
		$provider = new TwitchProvider([
	    'clientId'                => 'XXX',     // The client ID assigned when you created your application
	    'clientSecret'            => 'XXXX', // The client secret assigned when you created your application
	    'redirectUri'             => 'XXXX',  // Your redirect URL you specified when you created your application
	    'scopes'                  => ['user_read']                // The scopes you would like to request 
		]);
		$session = $this->get('session');
		// If we don't have an authorization code then get one
		if (!isset($request->query->get('code')) {
		    // Fetch the authorization URL from the provider, and store state in session
		    $authorizationUrl = $provider->getAuthorizationUrl();
		    $session->set('oauth2state', $provider->getState()); 
		    // Display link to start auth flow
		   return $this->render('ISUStreamBundle:Buttons:twitch.html.twig', ['authorizationUrl' => $authorizationUrl]);
		// Check given state against previously stored one to mitigate CSRF attack
		} elseif (empty($request->query->get('state')) || (isset($session->get('oauth2state')) && $request->query->get('state') !== $session->get('oauth2state'))) {
		    if (isset($session->get('oauth2state'))) {
		        unset($session->get('oauth2state'));
		    }
		    
		    return $this->render('ISUStreamBundle:error.html.twig');
		} else {
		    try {
		        // Get an access token using authorization code grant.
		        $accessToken = $provider->getAccessToken('authorization_code', [
		            'code' => $request->query->get('code')
		        ]);
		        // Using the access token, get user profile
		        $resourceOwner = $provider->getResourceOwner($accessToken);
		        $user = $resourceOwner->toArray();
		        echo '<html><table>';
		        echo '<tr><th>Access Token</th><td>' . htmlspecialchars($accessToken->getToken()) . '</td></tr>';
		        echo '<tr><th>Refresh Token</th><td>' . htmlspecialchars($accessToken->getRefreshToken()) . '</td></tr>';
		        echo '<tr><th>Username</th><td>' . htmlspecialchars($user['display_name']) . '</td></tr>';
		        echo '<tr><th>Bio</th><td>' . htmlspecialchars($user['bio']) . '</td></tr>';        
		        echo '<tr><th>Image</th><td><img src="' . htmlspecialchars($user['logo']) . '"></td></tr>';
		        echo '</table></html>';
		        // You can now create authenticated API requests through the provider.
		        //$request = $provider->getAuthenticatedRequest(
		        //    'GET',
		        //    'https://api.twitch.tv/kraken/user',
		        //    $accessToken
		        //);
		    } catch (Exception $e) {
		        return $this->render('ISUStreamBundle:error.html.twig',[
		        	$e->getMessage()
		        ]);

		    }
		}
      }

My issue is when I call my controller I got an error 500 from server without information (no symfony debugger, no console message, etc.)

Could you help me please?

Thanks in advanced.
Regards,
Fabien “Xutyr” C.

2

Check the webserver’s error-log if something’s in there that indicates what the problem is.

Also double check you’re actually running Symfony in the “dev” environment, i.e. in vanilla setups you call the app_dev.php rather than the app.php to access your application (you can either call it directly in the URL or change the rewrite in the .htaccess).

3

Hello Hellcat,
Sorry for the delay of my answer and thank you for your answer it’s help me a lot.

But now I have an issue “Error 500 not found” with the sample code deliver on Twitch gitHub:
throw new IdentityProviderException($error, $code, $data);

I try to use the new API so I changed data from the TwitchProvider.php as below in order to follow the new API recommendation.

<?php

namespace ISU\StreamBundle\Provider;

use League\OAuth2\Client\Provider\Exception\IdentityProviderException;
use League\OAuth2\Client\Token\AccessToken;
use League\OAuth2\Client\Tool\BearerAuthorizationTrait;
use Psr\Http\Message\ResponseInterface;
use League\OAuth2\Client\Provider\AbstractProvider;
use League\OAuth2\Client\Provider\GenericResourceOwner;


class TwitchProvider extends AbstractProvider
{

    use BearerAuthorizationTrait;
    private $urlAuthorize;
    private $urlAccessToken;
    private $urlResourceOwnerDetails;
    private $accessTokenMethod;
    private $accessTokenResourceOwnerId;
    private $scopeSeparator;
    private $scopes = null;
    private $responseError = 'error';
    private $responseCode;
    private $responseResourceOwnerId;
    public function __construct(array $options = [])
    {
        $possible   = $this->getConfigurableOptions();
        $configured = array_intersect_key($options, array_flip($possible));
        foreach ($configured as $key => $value) {
            $this->$key = $value;
        }
        // Remove all options that are only used locally
        $options = array_diff_key($options, $configured);
        parent::__construct($options);
    }
    protected function getConfigurableOptions()
    {
        return ['accessTokenMethod',
                'accessTokenResourceOwnerId',
                'scopeSeparator',
                'responseError',
                'responseCode',
                'responseResourceOwnerId',
                'scopes',
        ];
    }    
    public function getBaseAuthorizationUrl()
    {
        return 'https://id.twitch.tv/oauth2/authorize';
    }
    public function getBaseAccessTokenUrl(array $params)
    {
        return 'https://id.twitch.tv/oauth2/token';
    }
    public function getResourceOwnerDetailsUrl(AccessToken $token)
    {
        return 'https://api.twitch.tv/helix/user';
    }
    public function getDefaultScopes()
    {
        return $this->scopes;
    }
    protected function getScopeSeparator()
    {
        return ' ';
    }    
    protected function checkResponse(ResponseInterface $response, $data)
    {
        if (!empty($data[$this->responseError])) {
            $error = $data[$this->responseError];
            $code  = $this->responseCode ? $data[$this->responseCode] : 0;
            throw new IdentityProviderException($error, $code, $data);
        }
    }
    protected function createResourceOwner(array $response, AccessToken $token)
    {
        return new GenericResourceOwner($response, $this->responseResourceOwnerId);
    }
    protected function getDefaultHeaders()
    {
        return [];
    }    
    protected function getAuthorizationHeaders($token = NULL)
    {
        return ['Authorization' => 'Bearer '.$token];
    }
}

I don’t understand what I doing wrong :frowning:.

Thanks again @Hellcat!

4

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