public function study_config_updated() { $study_id = $this->input->post('study_id', true); if ($this->Researcher_model->check_study_privileges($study_id, $this->session->userdata('id')) || $this->session->userdata('manager')) { $config = $this->input->post('config', true); // Get study database $study_db = $this->_get_study_database($study_id); // Get all study devices $study_devices = $this->Researcher_model->get_device_data($study_db, "", "", "", "", "4294967295"); // Get MQTT server details $mqtt_conf = $this->_get_mqtt_server_details($study_id); // Using Mosquitto-PHP client that we installed over PECL $client = new Mosquitto\Client("aware", true); $client->setTlsCertificates($this->config->item("public_keys") . "server.crt"); //load server SSL certificate $client->setTlsOptions(Mosquitto\Client::SSL_VERIFY_PEER, "tlsv1.2", NULL); //make sure client is using our server certificate to connect $client->setCredentials($mqtt_conf['mqtt_username'], $mqtt_conf['mqtt_password']); //load study-specific user credentials so we can connect $client->connect($mqtt_conf['mqtt_server'], $mqtt_conf['mqtt_port']); //make connection // Loop through devices and send message foreach ($study_devices as $device) { if (array_key_exists("device_id", $device)) { $client->publish($study_id . "/" . $device["device_id"] . "/configuration", $config, 1, false); $client->loop(); sleep(1); } } $client->disconnect(); } else { header('HTTP/1.0 401 Unauthorized'); exit; } }
public function remove_device() { if ($this->session->userdata('researcher')) { $study_id = $this->input->post('study_id', true); $device_id = $this->input->post('device_id', true); $study_db = $this->_get_study_database($study_id); //$this->Researcher_model->is_study_creator($study_id, $this->session->userdata('id')) if ($this->Researcher_model->device_in_study($study_db, $device_id) && $this->Researcher_model->check_study_privileges($study_id, $this->session->userdata('id'))) { //$this->output->set_output(json_encode(array("success" => true))); // Get study data table names $data_collected = $this->Researcher_model->get_study_tables($study_db); $study_tables = array(); foreach ($data_collected as $key => $value) { array_push($study_tables, $data_collected[$key]["TABLE_NAME"]); } // Delete device and its' data $success = $this->Researcher_model->remove_device($study_db, $study_tables, $device_id); // Get MQTT server details $mqtt_conf = $this->_get_mqtt_server_details($study_id); // Using Mosquitto-PHP client that we installed over PECL $client = new Mosquitto\Client("aware", true); $client->setTlsCertificates($this->config->item("public_keys") . "server.crt"); //load server SSL certificate $client->setTlsOptions(Mosquitto\Client::SSL_VERIFY_PEER, "tlsv1.2", NULL); //make sure client is using our server certificate to connect $client->setCredentials($mqtt_conf['mqtt_username'], $mqtt_conf['mqtt_password']); //load study-specific user credentials so we can connect $client->connect($mqtt_conf['mqtt_server'], $mqtt_conf['mqtt_port'], 60); //make connection, keep alive 30 seconds $client->publish($study_id . "/" . $device_id . "/broadcasts", "ACTION_QUIT_STUDY", 1, false); $client->loop(); sleep(1); $client->disconnect(); $this->output->set_output(json_encode(array("success" => $success))); } else { header('HTTP/1.0 401 Unauthorized'); exit; } } else { header('HTTP/1.0 401 Unauthorized'); exit; } }