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<?php |
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/** |
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* @copyright Copyright (c) Flipbox Digital Limited |
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* @license https://flipboxfactory.com/software/patron/license |
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* @link https://www.flipboxfactory.com/software/patron/ |
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*/ |
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namespace flipbox\patron\actions\authorization; |
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use Craft; |
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use flipbox\craft\ember\actions\LookupTrait; |
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use flipbox\patron\events\PersistToken; |
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use flipbox\patron\helpers\ProviderHelper; |
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use flipbox\patron\Patron; |
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use flipbox\patron\queries\ProviderQuery; |
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use flipbox\patron\records\Token; |
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use League\OAuth2\Client\Provider\AbstractProvider; |
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use League\OAuth2\Client\Token\AccessToken; |
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use League\OAuth2\Client\Token\AccessTokenInterface; |
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use yii\base\Event; |
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use yii\web\HttpException; |
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/** |
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* @author Flipbox Factory <[email protected]> |
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* @since 1.0.0 |
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*/ |
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class Callback extends Action |
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{ |
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use LookupTrait; |
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/** |
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* @inheritdoc |
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* @throws \yii\base\InvalidConfigException |
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*/ |
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public function run() |
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{ |
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$patron = Patron::getInstance(); |
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// Get code |
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if (!$code = Craft::$app->getRequest()->getParam('code')) { |
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return $this->handleInvalidCodeResponse(); |
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} |
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// Validate state |
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$state = Craft::$app->getRequest()->getParam('state'); |
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if (!$this->isValidState($state)) { |
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return $this->handleInvalidStateResponse($state); |
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} |
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// Get provider |
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$identifier = $patron->getSession()->getProvider(); |
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if (!$identifier || (!$provider = $this->find($identifier))) { |
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return $this->handleNotFoundResponse(); |
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} |
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return $this->runInternal( |
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$code, |
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$provider |
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); |
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} |
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/** |
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* @param int $id |
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* @return AbstractProvider |
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* @throws \yii\base\InvalidConfigException |
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*/ |
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protected function find(int $id) |
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{ |
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return (new ProviderQuery()) |
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->id($id) |
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->one(); |
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} |
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/** |
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* @param $code |
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* @param AbstractProvider $provider |
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* @return AccessToken|mixed |
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* @throws HttpException |
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*/ |
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public function runInternal( |
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$code, |
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AbstractProvider $provider |
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) { |
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if (($access = $this->checkAccess($provider)) !== true) { |
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return $access; |
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} |
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return $this->performAction($code, $provider); |
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} |
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/** |
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* @param $code |
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* @param AbstractProvider $provider |
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* @return AccessToken |
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* @throws HttpException |
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*/ |
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public function performAction( |
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$code, |
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AbstractProvider $provider |
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): AccessToken { |
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return $this->handleExceptions(function () use ($code, $provider) { |
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// Get token via authorization code grant. |
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$accessToken = $provider->getAccessToken( |
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'authorization_code', |
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[ |
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'code' => $code |
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] |
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); |
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// Save token |
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$this->persistNewToken( |
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$accessToken, |
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$provider |
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); |
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return $accessToken; |
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}); |
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} |
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/** |
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* @param AccessTokenInterface $accessToken |
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* @param AbstractProvider $provider |
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* @return bool |
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* @throws \Exception |
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*/ |
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protected function persistNewToken( |
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AccessTokenInterface $accessToken, |
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AbstractProvider $provider |
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): bool { |
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$record = new Token(); |
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$record->setAttributes( |
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[ |
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'accessToken' => $accessToken->getToken(), |
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'refreshToken' => $accessToken->getRefreshToken(), |
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'providerId' => ProviderHelper::lookupId($provider), |
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'values' => $accessToken->getValues(), |
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'dateExpires' => $accessToken->getExpires(), |
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'enabled' => true |
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] |
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); |
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$event = new PersistToken([ |
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'token' => $accessToken, |
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'provider' => $provider, |
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'record' => $record |
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]); |
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Event::trigger( |
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get_class($provider), |
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Patron::EVENT_BEFORE_PERSIST_TOKEN, |
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$event |
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); |
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if (!$record->save()) { |
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return false; |
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} |
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Event::trigger( |
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get_class($provider), |
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Patron::EVENT_AFTER_PERSIST_TOKEN, |
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$event |
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); |
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return true; |
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} |
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/** |
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* @param string|null $state |
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* @return bool |
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*/ |
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protected function isValidState(string $state = null): bool |
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{ |
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if ($state !== Patron::getInstance()->getSession()->getState()) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* @param string|null $url |
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* @return string |
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*/ |
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protected function resolveRedirectUrl(string $url = null) |
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{ |
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if (empty($url)) { |
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$url = Patron::getInstance()->getSettings()->getCallbackUrl(); |
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} |
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return $url; |
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} |
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/******************************************* |
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* INVALID STATE RESPONSE |
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*******************************************/ |
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/** |
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* @param string|null $state |
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* @throws HttpException |
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*/ |
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protected function handleInvalidStateResponse(string $state = null) |
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{ |
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Patron::warning(Craft::t( |
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'patron', |
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"Invalid state: '{state}'", |
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[ |
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'{state}' => $state |
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] |
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)); |
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throw new HttpException( |
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$this->statusCodeInvalidState(), |
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$this->messageInvalidState() |
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); |
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} |
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/** |
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* @return string |
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*/ |
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protected function messageInvalidState(): string |
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{ |
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return Craft::t('patron', 'Invalid state.'); |
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} |
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/** |
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* HTTP not found response code |
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* |
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* @return int |
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*/ |
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protected function statusCodeInvalidState(): int |
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{ |
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return 404; |
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} |
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/******************************************* |
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* USER NOT FOUND RESPONSE |
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*******************************************/ |
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/** |
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* @throws HttpException |
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*/ |
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protected function handleUserNotFoundResponse() |
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{ |
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throw new HttpException( |
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$this->statusCodeUserNotFound(), |
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$this->messageUserNotFound() |
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); |
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} |
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/** |
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* @return string |
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*/ |
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protected function messageUserNotFound(): string |
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{ |
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return Craft::t('patron', 'Unable to find user.'); |
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} |
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/** |
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* HTTP not found response code |
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* |
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* @return int |
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*/ |
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protected function statusCodeUserNotFound(): int |
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{ |
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return 404; |
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} |
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/******************************************* |
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* INVALID CODE RESPONSE |
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*******************************************/ |
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/** |
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* @throws HttpException |
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*/ |
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protected function handleInvalidCodeResponse() |
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{ |
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throw new HttpException( |
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$this->statusCodeInvalidCode(), |
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$this->messageInvalidCode() |
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); |
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} |
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/** |
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* @return string |
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*/ |
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protected function messageInvalidCode(): string |
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{ |
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return Craft::t('patron', 'Invalid code.'); |
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} |
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/** |
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* HTTP not found response code |
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* |
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* @return int |
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*/ |
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protected function statusCodeInvalidCode(): int |
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{ |
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return 404; |
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} |
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} |
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