Getting the acess token from Guzzle Oauth authentication - php

Question

I'm currently trying to develop a connection to the Reddit api through Oauth using Guzzle. I get to the point where I authenticate in Reddit, then I get to the authorization token, but I can't take the access token from the Guzzle response so I can set it as a cookie and using on subsequent requests. My current code looks like this:
public function __construct(){
if(isset($_COOKIE['reddit_token'])){
$token_info = explode(":", $_COOKIE['reddit_token']);
$this->token_type = $token_info[0];
$this->access_token = $token_info[1];
} else {
if (isset($_GET['code'])){
//capture code from auth
$code = $_GET["code"];
//construct POST object for access token fetch request
$postvals = sprintf("code=%s&redirect_uri=%s&grant_type=authorization_code",
$code,
redditConfig::$ENDPOINT_OAUTH_REDIRECT);
//get JSON access token object (with refresh_token parameter)
$token = self::runCurl(redditConfig::$ENDPOINT_OAUTH_TOKEN, $postvals, null, true);
//store token and type
if (isset($token->access_token)){
$this->access_token = $token->access_token;
$this->token_type = $token->token_type;
//set token cookie for later use
$cookie_time = 60 * 59 + time(); //seconds * minutes = 59 minutes (token expires in 1hr)
setcookie('reddit_token', "{$this->token_type}:{$this->access_token}", $cookie_time);
}
} else {
$state = rand();
$urlAuth = sprintf("%s?response_type=code&client_id=%s&redirect_uri=%s&scope=%s&state=%s",
redditConfig::$ENDPOINT_OAUTH_AUTHORIZE,
redditConfig::$CLIENT_ID,
redditConfig::$ENDPOINT_OAUTH_REDIRECT,
redditConfig::$SCOPES,
$state);
//forward user to PayPal auth page
header("Location: $urlAuth");
}
}
This is my authentication flow. The I have the runCurl method that is going to make the guzzle requests:
private function runCurl($url, $postVals = null, $headers = null, $auth = false){
$options = array(
'timeout' => 10,
'verify' => false,
'headers' => ['User-Agent' => 'testing/1.0']
);
$requestType = 'GET';
if ($postVals != null){
$options['body'] = $postVals;
$requestType = "POST";
}
if ($this->auth_mode == 'oauth'){
$options['headers'] = [
'User-Agent' => 'testing/1.0',
'Authorization' => "{$this->token_type} {$this->access_token}"];
}
if ($auth){
$options['auth'] = [redditConfig::$CLIENT_ID, redditConfig::$CLIENT_SECRET];
}
$client = new \GuzzleHttp\Client();
$response = $client->request($requestType, $url, $options);
$body = $response->getBody();
return $body;
}
The problem resides here, the getBody() method returns a stream, and if I use getBody()->getContents() I get a string, none of which can help me.
Any idea on how can I get the access token so I can finish the authentication process?

Answer 1

To answer the question itself - you just need to cast $body to string. It should be a json, so you will also need to json_decode it to use it as an object in the code above. So instead of return $body; in your runCurl, you need to do:
return json_decode((string)$body);
I would recommend to use the official client tho. The code in the question has some unrelated issues, which will make it costy to maintain.