How to get Citrix's Goto Meeting Access Token - php

Question

Hi i am trying to get Goto meeting OAuth access token via php curl. but it returns nothing when i make a call. please guide me how i can get it, Code is given below.
$api_key = "123456";
$redirect_url = urlencode("URL");
$webinar_url = "https://api.citrixonline.com/oauth/authorize?client_id=".$api_key."&redirect_uri=".$redirect_url;
function getWebinarData($link)
{
$headers = array(
"HTTP/1.1",
"Content-type: application/json",
"Accept: application/json"
);
$curl = curl_init($link);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); //2
$response = curl_exec($curl);
echo "<pre>DATA: ";print_r($response);echo "</pre>";
curl_close($curl);
return $response;
}

Answer 1

/**
* goto api
* Author: Ahad Ali
* Date: valentines day 2013
* Classes Curl, OAuth, GotoTraining
*/
define ("API_KEY", "");
define ("REDIRECT_URL","");
define ("AUTH_AUTOLOGIN_URL","https://developer.citrixonline.com/oauth/g2t/authorize.php");
define ("AUTH_EXCHANGE_URL", "https://api.citrixonline.com/oauth/access_token?grant_type=authorization_code&code=<CODE>&client_id=" . API_KEY);
define ("MANAGE_TRAINING_URL","https://api.citrixonline.com/G2T/rest/organizers/<ORGANIZERKEY>/trainings");
class Curl
{
public $result;
public function __construct()
{
}
public function request($url, $data="", $method="get", $headers="")
{
$ch = curl_init();
// this is autologiM USING CURL POST
// avoiding the redirect to gotos site where it asks for email and password and redirects back to the URL with a code
curl_setopt($ch, CURLOPT_URL, $url);
if($method == "post")
{
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_HEADER, true);
}
if($headers)
curl_setopt($ch, CURLOPT_HTTPHEADER,$headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$this->result = (string) curl_exec($ch);
curl_close($ch);
return $this->result;
}
public function __destruct()
{
}
}
class OAuth
{
public $autologin_url;
public $exchange_url;
public $code;
public $auth_result;
//https://api.citrixonline.com/oauth/authorize?client_id= used this URL to get all the field names
public $login_data = array(
'emailAddress' => '',
'password' => '',
'client_id' => '',
'access_type'=> 'G2T',
'app_name' => '',
'redirect_uri' => '',
'submitted' => 'form_submitted',
);
public function __construct($autologin_url = AUTH_AUTOLOGIN_URL, $exchange_url = AUTH_EXCHANGE_URL, $apikey=API_KEY)
{
$this->autologin_url = $autologin_url;
$this->exchange_url = $exchange_url;
$this->login_data['client_id'] = $apikey;
}
public function authorize()
{
$this->getCode();
$this->exchangeCodeForAccessToken();
}
public function getCode()
{
$curl = new Curl();
$result = $curl->request($this->autologin_url, $this->login_data, "post");
$arr = explode("\n", $result);
foreach($arr as $k=>$v)
{
if(strstr($v,"Location: http:"))
$return_url = $v;
}
$query = trim(parse_url($return_url, PHP_URL_QUERY));// adds one unnecessary _ (underscore) at the end of the query string
$this->code = substr($query, 5, (strlen($query) - 6));//starting from 5 get me ...number of chars
}
function exchangeCodeForAccessToken()
{
$this->exchange_url = str_replace("<CODE>", $this->code, $this->exchange_url);
$curl = new Curl();
$result = $curl->request($this->exchange_url);
$this->auth_result = json_decode($result);
}
public function __destruct()
{
}
}
class GotoTraining extends OAuth
{
public $manage_training_url;
public $training_result;
public $error_list = array("AuthFailure", "AccessDenied", "ExpiredToken", "InternalError", "InvalidRequest", "InvalidMethod", "MissingToken", "NoSuchTraining", "InvalidToken");
public function __construct($url = MANAGE_TRAINING_URL)
{
$this->manage_training_url = $url;
parent::__construct();
}
/**
*Arguement List for goto CreateTraining service
* [name] => Representational State Transfer 101
[description] => The REST-ful way to APIs.
[timeZone] => America/Los_Angeles
[times] => Array
(
[0] => stdClass Object
(
[startDate] => 2011-09-08T18:25:00Z
[endDate] => 2011-09-08T19:25:00Z
)
[1] => stdClass Object
(
[startDate] => 2011-09-09T18:25:00Z
[endDate] => 2011-09-09T19:25:00Z
)
)
[registrationSettings] => stdClass Object
(
[disableWebRegistration] => false
[disableConfirmationEmail] => false
)
[organizers] => Array
(
[0] => 6512477
[1] => 38712
[2] => 9876466
)
*/
public function createTraining($name, $desc, $times)
{
$registrationSettings["disableWebRegistration"] = "false";
$registrationSettings["disableConfirmationEmail"] = "false";
$json["name"] = $name;
$json["description"] = $desc;
$json["timeZone"] = "Australia/Sydney";
$json["times"] = $times;//array for startDate, endDate
$json["registrationSettings"] = $registrationSettings;
$json["organizers"][0] = $this->auth_result->organizer_key;
$this->manage_training_url = str_replace("<ORGANIZERKEY>", $this->auth_result->organizer_key, $this->manage_training_url);
$json = json_encode($json);
//$post_data[] = "Authorization:OAuth oauth_token=" . $this->auth_result->access_token;
//$this->manage_training_url = $this->manage_training_url . "?oauth_token=" . $this->auth_result->access_token;
$headers = array(
'Accept: application/json',
'Content-Type: application/json',
'Authorization: OAuth oauth_token=' . $this->auth_result->access_token
);
//$this->manage_training_url = $this->manage_training_url . "?oauth_token=" . $this->auth_result->access_token;
$curl = new Curl();
$this->training_result = $curl->request($this->manage_training_url, $json, "post", $headers);
$arr = explode("\n", $this->training_result);
$this->webCode = trim($arr[count($arr)-1], '"');
$this->checkError();
return $this->webCode;
}
public function checkError()
{
foreach($this->error_list as $val)
{
if(strstr($this->training_result, $val))
$this->webCode = $val;
}
return 0;
}
}