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<?php |
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/** |
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* This file is part of the tiqr project. |
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* |
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* The tiqr project aims to provide an open implementation for |
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* authentication using mobile devices. It was initiated by |
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* SURFnet and developed by Egeniq. |
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* |
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* More information: http://www.tiqr.org |
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* |
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* @author Joost van Dijk <[email protected]> |
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* |
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* @package tiqr |
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* |
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* @license New BSD License - See LICENSE file for details. |
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* |
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* @copyright (C) 2010-2024 SURF BV |
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*/ |
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use League\Flysystem\Adapter\Local; |
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use League\Flysystem\Filesystem; |
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use Cache\Adapter\Filesystem\FilesystemCachePool; |
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/** |
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* Android Cloud To Device Messaging message. |
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* |
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* @author peter |
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*/ |
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class Tiqr_Message_FCM extends Tiqr_Message_Abstract |
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{ |
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/** |
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* Send message. |
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* |
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* @throws Tiqr_Message_Exception_SendFailure |
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* @throws \Google\Exception |
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*/ |
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public function send() |
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{ |
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$options = $this->getOptions(); |
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$projectId = $options['firebase.projectId']; |
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$credentialsFile = $options['firebase.credentialsFile']; |
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$cacheTokens = $options['firebase.cacheTokens'] ?? false; |
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$tokenCacheDir = $options['firebase.tokenCacheDir'] ?? __DIR__; |
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$translatedAddress = $this->getAddress(); |
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$alertText = $this->getText(); |
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$url = $this->getCustomProperty('challenge'); |
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$this->_sendFirebase($translatedAddress, $alertText, $url, $projectId, $credentialsFile, $cacheTokens, $tokenCacheDir); |
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} |
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/** |
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* @throws \Google\Exception |
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* @throws Tiqr_Message_Exception_SendFailure |
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*/ |
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private function getGoogleAccessToken($credentialsFile, $cacheTokens, $tokenCacheDir ) |
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{ |
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$client = new \Google_Client(); |
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// Try to add a file based cache for accesstokens, if configured |
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if ($cacheTokens) { |
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//set up the cache |
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$filesystemAdapter = new Local($tokenCacheDir); |
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$filesystem = new Filesystem($filesystemAdapter); |
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$pool = new FilesystemCachePool($filesystem); |
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//set up a callback to log token refresh |
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$tokenCallback = function ($cacheKey, $accessToken) { |
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$this->logger->debug(sprintf('New access token received at cache key %s', $cacheKey)); |
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}; |
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$client->setTokenCallback($tokenCallback); |
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$client->setCache($pool); |
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} else { |
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$this->logger->warning("Cache for oAuth tokens is disabled"); |
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} |
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$client->setAuthConfig($credentialsFile); |
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$client->addScope('https://www.googleapis.com/auth/firebase.messaging'); |
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$client->fetchAccessTokenWithAssertion(); |
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$token = $client->getAccessToken(); |
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return $token['access_token']; |
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} |
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/** |
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* Send a message to a device using the firebase API key. |
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* |
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* @param $deviceToken string device ID |
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* @param $alert string alert message |
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* @param $challenge string tiqr challenge url |
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* @param $projectId string the id of the firebase project |
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* @param $credentialsFile string The location of the firebase secret json |
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* @param $cacheTokens bool Enable caching the accesstokens for accessing the Google API |
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* @param $tokenCacheDir string Location for storing the accesstoken cache |
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* @param $retry boolean is this a 2nd attempt |
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* @throws Tiqr_Message_Exception_SendFailure |
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*/ |
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private function _sendFirebase(string $deviceToken, string $alert, string $challenge, string $projectId, string $credentialsFile, bool $cacheTokens, string $tokenCacheDir, bool $retry=false) |
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{ |
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$apiurl = 'https://fcm.googleapis.com/v1/projects/'.$projectId.'/messages:send'; |
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$fields = [ |
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'message' => [ |
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'token' => $deviceToken, |
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'data' => [ |
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'challenge' => $challenge, |
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'text' => $alert, |
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], |
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"android" => [ |
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"ttl" => "300s", |
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], |
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], |
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]; |
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try { |
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$headers = array( |
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'Authorization: Bearer ' . $this->getGoogleAccessToken($credentialsFile, $cacheTokens, $tokenCacheDir), |
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'Content-Type: application/json', |
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); |
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} catch (\Google\Exception $e) { |
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throw new Tiqr_Message_Exception_SendFailure(sprintf("Error getting Goosle access token : %s", $e->getMessage()), true); |
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} |
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$ch = curl_init(); |
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curl_setopt($ch, CURLOPT_URL, $apiurl); |
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curl_setopt($ch, CURLOPT_POST, true); |
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curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); |
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
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curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields)); |
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$result = curl_exec($ch); |
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$errors = curl_error($ch); |
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$statusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); |
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$remoteip = curl_getinfo($ch, CURLINFO_PRIMARY_IP); |
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curl_close($ch); |
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if ($result === false) { |
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throw new Tiqr_Message_Exception_SendFailure("Server unavailable", true); |
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} |
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if (!empty($errors)) { |
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throw new Tiqr_Message_Exception_SendFailure("Http error occurred: ". $errors, true); |
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} |
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// Wait and retry once in case of a 502 Bad Gateway error |
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if ($statusCode === 502 && !($retry)) { |
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sleep(2); |
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$this->_sendFirebase($deviceToken, $alert, $challenge, $projectId, $credentialsFile, $cacheTokens, $tokenCacheDir, true); |
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return; |
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} |
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if ($statusCode !== 200) { |
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throw new Tiqr_Message_Exception_SendFailure(sprintf('Invalid status code : %s. Server : %s. Response : "%s".', $statusCode, $remoteip, $result), true); |
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} |
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// handle errors, ignoring registration_id's |
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$response = json_decode($result, true); |
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foreach ($response as $k => $v) { |
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if ($k=="error") { |
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throw new Tiqr_Message_Exception_SendFailure(sprintf("Error in FCM response: %s", $result), true); |
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} |
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} |
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} |
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} |
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Tiqr /
tiqr-server-libphp
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