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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) 2010-2015 SURFnet BV  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Android Cloud To Device Messaging message.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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_AuthFailure  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws Tiqr_Message_Exception_SendFailure  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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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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                        $apiKey = $options['firebase.apikey'];  | 
            
            
                                                                        
                            
            
                                    
            
            
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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, $apiKey);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws \Google\Exception  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function getGoogleAccessToken(){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $options = $this->getOptions();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $credentialsFilePath = $options['credentialsFile'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $client = new \Google_Client();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $client->setAuthConfig($credentialsFilePath);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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 $apiKey string api key for firebase  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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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                     * @throws \Google\Exception  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function _sendFirebase($deviceToken, $alert, $challenge, $apiKey, $retry=false)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $options = $this->getOptions();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $apiurl = 'https://fcm.googleapis.com/v1/projects/'.$options['fcm.projectId'].'/messages:send';   //replace "your-project-id" with...your project ID  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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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                        $headers = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'Authorization: Bearer ' . $this->getGoogleAccessToken(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'Content-Type: application/json',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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, $apiKey, 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['results'] as $k => $v) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (isset($v['error'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                throw new Tiqr_Message_Exception_SendFailure("Error in FCM response: " . $v['error'], true); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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