<?php
/**
* This object will retrieve a token for
* a certain user and store it in the storageObject
*
* License: LGPL
*
* @copyright 2011 Aziz Hussain
* @version 1.0
* @link http://azizsaleh.com
* @email azizsaleh@gmail.com
*/
class getToken
{
public $request;
public $configs;
public $storage;
public $user_id;
public $step_id;
/* Constructor */
public function __construct ($force_reget = false, &$configs)
{
// Load configurations
$this->configs = $configs;
// Load HTTP Request object
$this->request = new Request($this->configs);
// Database handler
$this->storage = new storageObject($this->configs);
// If force_reget
if ($force_reget == true)
{
// Clear previous tokens
$this->storage->removeUserToken();
$this->storage->addUserToken();
}
// If user did not proceed the login page
$this->step_id = $this->storage->getStepID();
// Check which step to take
switch($this->step_id)
{
case 1:
$this->_step1_requestToken();
break;
case 2:
case 3:
$code_info = $this->storage->getUserToken();
$this->configs->oauth_token = $code_info[1];
$this->configs->oauth_token_secret = $code_info[1];
$this->_step3_redirectUserToLogin();
break;
case 4:
die("This user already has keys in the stored");
break;
}
}
/*
This function will send a request to netflix for tokens and login page
*/
private function _step1_requestToken()
{
$api_url = $this->composeVariables('http://api.netflix.com/oauth/request_token', array());
$this->request->makeRequest($api_url, array());
$response = $this->request->getResponse();
$this->configs->oauth_token = $response->oauth_token;
$this->configs->oauth_token_secret = $response->oauth_token_secret;
$this->configs->app_name = $response->application_name;
$this->configs->login_url = $response->login_url;
// Update user tokens in DB
$this->storage->addUserToken($response->oauth_token, $response->oauth_token_secret);
$this->storage->setStepID(2);
// Redirect user to login
$this->_step3_redirectUserToLogin();
}
/*
This function will redirect usres to login page
*/
private function _step3_redirectUserToLogin()
{
$app_name = $this->request->percentEncode($this->configs->app_name);
$call_back = $this->request->percentEncode($this->configs->app_callback);
$login_link = 'https://api-user.netflix.com/oauth/login?application_name=' . $app_name;
$login_link .= '&oauth_callback=' . $call_back;
$login_link .= '&oauth_consumer_key= ' .$this->configs->consumer_key . '&oauth_token=' . $this->configs->oauth_token;
$this->storage->setStepID(3);
header("Location: $login_link");
die();
}
/*
This function will compose variables
and add required keys depending on call
@param string api_url
@param array request_vars
@return string
*/
private function composeVariables($api_url, $request_vars = array())
{
$signatures = array(
'consumer_key' => $this->configs->consumer_key,
'shared_secret' => $this->configs->shared_key );
if (isset($this->configs->oauth_token) && isset($this->configs->oauth_token_secret))
{
$signatures['access_token'] = $this->configs->oauth_token;
$signatures['access_secret'] = $this->configs->oauth_token_secret;
}
$auth_object = new OAuthSimple($this->configs->consumer_key, $this->configs->shared_key);
$request = $auth_object->sign(
array( 'path' => $api_url,
'parameters' => $request_vars,
'signatures' => $signatures));
return $request['signed_url'];
}
}
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