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<?php
namespace amnah\yii2\user\components;
use Yii;
use yii\authclient\OAuth2;
use yii\base\Exception;
/**
* Reddit OAuth2
*
* @see https://github.com/reddit/reddit/wiki/OAuth2
* @see https://www.reddit.com/dev/api/oauth
*/
class RedditAuth extends OAuth2
{
/**
* @inheritdoc
*/
public $authUrl = 'https://ssl.reddit.com/api/v1/authorize';
/**
* @inheritdoc
*/
public $tokenUrl = 'https://ssl.reddit.com/api/v1/access_token';
/**
* @inheritdoc
*/
public $apiBaseUrl = 'https://oauth.reddit.com/api/v1';
/**
* @inheritdoc
*/
public $scope = 'identity';
/**
* @var string Twitter duration - "temporary" or "permanent"
* @see https://github.com/reddit/reddit/wiki/OAuth2#authorization
*/
public $duration = 'temporary';
/**
* @var string Token state - anything you want. According to Reddit, you should use
* this to verify authorization requests by checking that it matches
* @see https://github.com/reddit/reddit/wiki/OAuth2#authorization
*/
public $state = 'UnZgq3GKBUqT@2Pyu5yZu!$VHJDf3FjD';
/**
* @inheritdoc
*/
protected function defaultName()
{
return 'reddit';
}
/**
* @inheritdoc
*/
protected function defaultTitle()
{
return 'Reddit';
}
/**
* @inheritdoc
*/
protected function defaultViewOptions()
{
return [
'popupWidth' => 850,
'popupHeight' => 400,
];
}
/**
* @inheritdoc
*/
protected function initUserAttributes()
{
return $this->api('me', 'GET');
}
/**
* Add state and duration to $defaultParams
* @inheritdoc
*/
public function buildAuthUrl(array $params = [])
{
$defaultParams = [
'client_id' => $this->clientId,
'response_type' => 'code',
'redirect_uri' => $this->getReturnUrl(),
'xoauth_displayname' => Yii::$app->name,
'state' => $this->state,
'duration' => $this->duration,
];
if (!empty($this->scope)) {
$defaultParams['scope'] = $this->scope;
}
return $this->composeUrl($this->authUrl, array_merge($defaultParams, $params));
}
/**
* Add curl headers
* @inheritdoc
*/
protected function composeRequestCurlOptions($method, $url, array $params)
{
$curlOptions = parent::composeRequestCurlOptions($method, $url, $params);
// add HTTP Basic Authorization headers for getting access token
// or add Bearer token for api requests
if ($url == $this->tokenUrl) {
$curlOptions[CURLOPT_HTTPHEADER][] = 'Authorization: Basic ' . base64_encode("{$params["client_id"]}:{$params["client_secret"]}");
} elseif (strpos($url, $this->apiBaseUrl) !== false) {
$curlOptions[CURLOPT_HTTPHEADER][] = 'Authorization: Bearer ' . $params['access_token'];
}
return $curlOptions;
}
/**
* Check matching "state" and remove from params so that return uri will match
* the one set in the Reddit app
* @inheritdoc
*/
protected function defaultReturnUrl()
{
$params = $_GET;
// check for matching state
if (!empty($params['state']) && $params['state'] !== $this->state) {
throw new Exception("State does not match");
}
unset($params['code']);
unset($params['state']);
$params[0] = Yii::$app->controller->getRoute();
return Yii::$app->getUrlManager()->createAbsoluteUrl($params);
}
}