public function callback()
{
// Create an consumer from the config
$this->consumer = \OAuth\Consumer::forge($this->config);
// Load the provider
$this->provider = \OAuth\Provider::forge($this->provider);
if ($token = Cookie::get('oauth_token')) {
// Get the token from storage
$this->token = unserialize(base64_decode($token));
}
if ($this->token and $this->token->access_token !== Input::param('oauth_token')) {
// Delete the token, it is not valid
Cookie::delete('oauth_token');
// Send the user back to the beginning
exit('invalid token after coming back to site');
}
// Get the verifier
$verifier = Input::param('oauth_verifier');
// Store the verifier in the token
$this->token->verifier($verifier);
// Exchange the request token for an access token
return $this->provider->access_token($this->consumer, $this->token);
}
