function checkScope receives array of string as the second parameter but it expects a string

Hi @bshaffer,

When executing the following curl command to test the token endpoint:

curl -u testuser:testpass https://someIP/Symfony-OAuth-Server/web/app_dev.php/token -k -d 'grant_type=client_credentials&scope=photo_engine'

the following error is given:

in /var/www/Symfony-OAuth-Server/vendor/bshaffer/oauth2-server-php/src/OAuth2/Scope.php line 49

at Symfony\Component\Debug\ErrorHandler-&gt;handle(&#039;2&#039;, &#039;trim() expects parameter 1 to be string, array given&#039;, &#039;/var/www/Symfony-OAuth-Server/vendor/bshaffer/oauth2-server-php/src/OAuth2/Scope.php&#039;, &#039;49&#039;, array(&#039;required_scope&#039; =&gt; array(&#039;photo_engine&#039;), &#039;available_scope&#039; =&gt; array(&#039;xyz&#039;, &#039;photo_engine&#039;)))
    in  line

at trim(array(&#039;xyz&#039;, &#039;photo_engine&#039;))
    in /var/www/Symfony-OAuth-Server/vendor/bshaffer/oauth2-server-php/src/OAuth2/Scope.php line 49

at OAuth2\Scope-&gt;checkScope(&#039;photo_engine&#039;, array(&#039;xyz&#039;, &#039;photo_engine&#039;))
    in /var/www/Symfony-OAuth-Server/vendor/bshaffer/oauth2-server-php/src/OAuth2/Controller/TokenController.php line 173

at OAuth2\Controller\TokenController-&gt;grantAccessToken(object(Request), object(Response))
    in /var/www/Symfony-OAuth-Server/vendor/bshaffer/oauth2-server-php/src/OAuth2/Controller/TokenController.php line 49

at OAuth2\Controller\TokenController-&gt;handleTokenRequest(object(Request), object(Response))
    in /var/www/Symfony-OAuth-Server/vendor/bshaffer/oauth2-server-php/src/OAuth2/Server.php line 256

at OAuth2\Server-&gt;handleTokenRequest(object(Request), object(Response))
    in /var/www/Symfony-OAuth-Server/vendor/bshaffer/oauth2-server-bundle/OAuth2/ServerBundle/Controller/TokenController.php line 31

What happens is that the function checkScope gets an array of available scopes as the second parameter and tries to trim it. Either the function checkScope should get string as the second parameter or it should not be trimmed because array is already provided.

This kind of behaviour comes out of the box.

bshaffer / oauth2-server-bundle

function checkScope receives array of string as the second parameter but it expects a string #28