const path = require('path') const { ipcRenderer } = require('electron') const sock = require('./sock.js'); const daemon = require('./daemon.js'); const fs = require('fs'); const { locatorToLatLng, distance, bearingDistance, latLngToLocator } = require('qth-locator'); // https://stackoverflow.com/a/26227660 var appDataFolder = process.env.APPDATA || (process.platform == 'darwin' ? process.env.HOME + '/Library/Application Support' : process.env.HOME + "/.config") var configFolder = path.join(appDataFolder, "FreeDATA"); var configPath = path.join(configFolder, 'config.json') const config = require(configPath); // START INTERVALL COMMAND EXECUTION FOR STATES setInterval(daemon.getDaemonState, 1000) setInterval(sock.getTncState, 150) setInterval(sock.getRxBuffer, 1000) // UPDATE FFT DEMO /* updateFFT = function(fft) { var fft = Array.from({ length: 2048 }, () => Math.floor(Math.random() * 10)); spectrum.addData(fft); console.log(fft) } setInterval(updateFFT, 250) */ // WINDOW LISTENER window.addEventListener('DOMContentLoaded', () => { // LOAD SETTINGS document.getElementById("tnc_adress").value = config.tnc_host document.getElementById("tnc_port").value = config.tnc_port document.getElementById("myCall").value = config.mycall document.getElementById("myGrid").value = config.mygrid document.getElementById('hamlib_deviceid').value = config.deviceid document.getElementById('hamlib_deviceport').value = config.deviceport document.getElementById('hamlib_serialspeed').value = config.serialspeed document.getElementById('hamlib_ptt_protocol').value = config.pttprotocol document.getElementById('hamlib_ptt_port').value = config.pttport if (config.spectrum == 'waterfall') { document.getElementById("waterfall-scatter-switch1").checked = true document.getElementById("waterfall-scatter-switch2").checked = false document.getElementById("scatter").style.visibility = 'hidden'; document.getElementById("waterfall").style.visibility = 'visible'; document.getElementById("waterfall").style.height = '100%'; } else { document.getElementById("waterfall-scatter-switch1").checked = false document.getElementById("waterfall-scatter-switch2").checked = true document.getElementById("scatter").style.visibility = 'visible'; document.getElementById("waterfall").style.visibility = 'hidden'; document.getElementById("waterfall").style.height = '0px'; } // remote tnc if (config.tnclocation == 'remote') { document.getElementById("local-remote-switch1").checked = false document.getElementById("local-remote-switch2").checked = true document.getElementById("remote-tnc-field").style.visibility = 'visible'; } else { document.getElementById("local-remote-switch1").checked = true document.getElementById("local-remote-switch2").checked = false document.getElementById("remote-tnc-field").style.visibility = 'hidden'; } // Create spectrum object on canvas with ID "waterfall" global.spectrum = new Spectrum( "waterfall", { spectrumPercent: 0 }); // SETUP OF SCATTER DIAGRAM /* global.data = { datasets: [{ label: 'Scatter Dataset', data: [{ x: 0, y: 0 }], backgroundColor: 'rgb(255, 99, 132)' }], }; var ctx = document.getElementById('scatter').getContext('2d'); global.myChart = new Chart(ctx, { type: 'scatter', data: data, options: { animation: false, legend: { display: false }, scales: { display: false, grid: { display: false }, x: { type: 'linear', position: 'bottom', display: false, min: -50, max: 50 }, y: { display: false, min: -50, max: 50 } } } }); */ // on click waterfall scatter toggle view // waterfall document.getElementById("waterfall-scatter-switch1").addEventListener("click", () => { document.getElementById("scatter").style.visibility = 'hidden'; document.getElementById("waterfall").style.visibility = 'visible'; document.getElementById("waterfall").style.height = '100%'; config.spectrum = 'waterfall' fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); }); // scatter document.getElementById("waterfall-scatter-switch2").addEventListener("click", () => { document.getElementById("scatter").style.visibility = 'visible'; document.getElementById("waterfall").style.visibility = 'hidden'; document.getElementById("waterfall").style.height = '0px'; config.spectrum = 'scatter' fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); }); // on click remote tnc toggle view document.getElementById("local-remote-switch1").addEventListener("click", () => { document.getElementById("local-remote-switch1").checked = true document.getElementById("local-remote-switch2").checked = false document.getElementById("remote-tnc-field").style.visibility = 'hidden'; config.tnclocation = 'localhost' fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); }); document.getElementById("local-remote-switch2").addEventListener("click", () => { document.getElementById("local-remote-switch1").checked = false document.getElementById("local-remote-switch2").checked = true document.getElementById("remote-tnc-field").style.visibility = 'visible'; config.tnclocation = 'remote' fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); }); // on change port and host document.getElementById("tnc_adress").addEventListener("change", () => { console.log(document.getElementById("tnc_adress").value) config.tnc_host = document.getElementById("tnc_adress").value config.daemon_host = document.getElementById("tnc_adress").value fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); }); // on change ping callsign document.getElementById("dxCall").addEventListener("change", () => { document.getElementById("dataModalDxCall").value = document.getElementById("dxCall").value }); // on change ping callsign document.getElementById("dataModalDxCall").addEventListener("change", () => { document.getElementById("dxCall").value = document.getElementById("dataModalDxCall").value }); document.getElementById("tnc_port").addEventListener("change", () => { config.tnc_port = document.getElementById("tnc_port").value config.daemon_port = parseInt(document.getElementById("tnc_port").value) + 1 fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); }); // saveMyCall button clicked document.getElementById("saveMyCall").addEventListener("click", () => { callsign = document.getElementById("myCall").value config.mycall = callsign.toUpperCase() fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); sock.saveMyCall(callsign) }); // saveMyGrid button clicked document.getElementById("saveMyGrid").addEventListener("click", () => { grid = document.getElementById("myGrid").value config.mygrid = grid fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); sock.saveMyGrid(grid) }); // startPing button clicked document.getElementById("sendPing").addEventListener("click", () => { var dxcallsign = document.getElementById("dxCall").value dxcallsign = dxcallsign.toUpperCase() sock.sendPing(dxcallsign) }); // dataModalstartPing button clicked document.getElementById("dataModalSendPing").addEventListener("click", () => { var dxcallsign = document.getElementById("dataModalDxCall").value dxcallsign = dxcallsign.toUpperCase() sock.sendPing(dxcallsign) }); // sendCQ button clicked document.getElementById("sendCQ").addEventListener("click", () => { sock.sendCQ() }); // startTNC button clicked document.getElementById("startTNC").addEventListener("click", () => { var rx_audio = document.getElementById("audio_input_selectbox").value var tx_audio = document.getElementById("audio_output_selectbox").value var deviceid = document.getElementById("hamlib_deviceid").value var deviceport = document.getElementById("hamlib_deviceport").value var serialspeed = document.getElementById("hamlib_serialspeed").value var pttprotocol = document.getElementById("hamlib_ptt_protocol").value var pttport = document.getElementById("hamlib_ptt_port").value config.deviceid = deviceid config.deviceport = deviceport config.serialspeed = serialspeed config.pttprotocol = pttprotocol config.pttport = pttport fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); daemon.startTNC(rx_audio, tx_audio, deviceid, deviceport, pttprotocol, pttport, serialspeed) setTimeout(function() { sock.saveMyCall(config.mycall); }, 3000); setTimeout(function() { sock.saveMyGrid(config.mygrid); }, 4000); }) // stopTNC button clicked document.getElementById("stopTNC").addEventListener("click", () => { daemon.stopTNC() }) // openDataModule button clicked document.getElementById("openDataModule").addEventListener("click", () => { if (document.getElementById("mySidebar").style.width == "40%") { document.getElementById("mySidebar").style.width = "0px"; } else { document.getElementById("mySidebar").style.width = "40%"; } }) // START TRANSMISSION document.getElementById("startTransmission").addEventListener("click", () => { var fileList = document.getElementById("dataModalFile").files; var reader = new FileReader(); //reader.readAsBinaryString(fileList[0]); reader.readAsDataURL(fileList[0]); reader.onload = function(e) { // binary data var data = e.target.result console.log(data) let Data = { command: "sendFile", dxcallsign: document.getElementById("dataModalDxCall").value.toUpperCase(), mode: document.getElementById("datamode").value, frames: document.getElementById("framesperburst").value, filetype: fileList[0].type, filename: fileList[0].name, data: data, checksum: '123123123', }; ipcRenderer.send('run-tnc-command', Data); }; reader.onerror = function(e) { // error occurred console.log('Error : ' + e.type); }; }) // START TRANSMISSION document.getElementById("stopTransmission").addEventListener("click", () => { let Data = { command: "stopTransmission" }; ipcRenderer.send('run-tnc-command', Data); }) }) ipcRenderer.on('action-update-tnc-state', (event, arg) => { //console.log(arg) /* var fft = Array.from({ length: 2048 }, () => Math.floor(Math.random() * 10)); spectrum.addData(fft); */ // update FFT if (typeof(arg.fft) !== 'undefined') { //console.log(arg.fft) //console.log(typeof(arg.fft)) var array = JSON.parse("[" + arg.fft + "]"); //console.log(typeof(array)) //console.log(array[0]) spectrum.addData(array[0]); } // TOE TIME OF EXECUTION --> How many time needs a command to be executed until data arrives if (typeof(arg.toe) == 'undefined') { var toe = 0 } else { var toe = arg.toe } document.getElementById("toe").innerHTML = toe + ' ms' // DATA STATE global.rxBufferLengthTnc = arg.rx_buffer_length // SCATTER DIAGRAM PLOTTING //global.myChart.destroy(); //console.log(arg.scatter.length) const config = { plugins: { legend: { display: false, }, tooltip: { enabled: false }, annotation: { annotations: { line1: { type: 'line', yMin: 0, yMax: 0, borderColor: 'rgb(255, 99, 132)', borderWidth: 2, }, line2: { type: 'line', xMin: 0, xMax: 0, borderColor: 'rgb(255, 99, 132)', borderWidth: 2, } } }, }, animations: false, scales: { x: { type: 'linear', position: 'bottom', display: true, min: -40, max: 40, ticks: { display: false } }, y: { display: true, min: -40, max: 40, ticks: { display: false, } } } } var data = arg.scatter var newdata = { datasets: [{ //label: 'constellation diagram', data: data, options: config, backgroundColor: 'rgb(255, 99, 132)' }], }; if (typeof(arg.scatter) == 'undefined') { var scatterSize = 0 } else { var scatterSize = arg.scatter.length } if (global.data != newdata && scatterSize > 0) { try { global.myChart.destroy(); } catch (e) { // myChart not yet created } global.data = newdata var ctx = document.getElementById('scatter').getContext('2d'); global.myChart = new Chart(ctx, { type: 'scatter', data: global.data, options: config }); } // PTT STATE if (arg.ptt_state == 'True') { document.getElementById("ptt_state").className = "btn btn-danger"; } else if (arg.ptt_state == 'False') { document.getElementById("ptt_state").className = "btn btn-success"; } else { document.getElementById("ptt_state").className = "btn btn-secondary" } // BUSY STATE if (arg.busy_state == 'BUSY') { document.getElementById("busy_state").className = "btn btn-danger"; document.getElementById("startTransmission").disabled = true document.getElementById("stopTransmission").disabled = false } else if (arg.busy_state == 'IDLE') { document.getElementById("busy_state").className = "btn btn-success"; } else { document.getElementById("busy_state").className = "btn btn-secondary" document.getElementById("startTransmission").disabled = true document.getElementById("stopTransmission").disabled = false } // ARQ STATE if (arg.arq_state == 'DATA') { document.getElementById("arq_state").className = "btn btn-warning"; document.getElementById("startTransmission").disabled = true document.getElementById("stopTransmission").disabled = false } else if (arg.arq_state == 'IDLE') { document.getElementById("arq_state").className = "btn btn-secondary"; document.getElementById("startTransmission").disabled = false document.getElementById("stopTransmission").disabled = true } else { document.getElementById("arq_state").className = "btn btn-secondary" document.getElementById("startTransmission").disabled = true document.getElementById("stopTransmission").disabled = false } // RMS document.getElementById("rms_level").setAttribute("aria-valuenow", arg.rms_level) document.getElementById("rms_level").setAttribute("style", "width:" + arg.rms_level + "%;") // CHANNEL STATE if (arg.channel_state == 'RECEIVING_SIGNALLING') { document.getElementById("signalling_state").className = "btn btn-success"; document.getElementById("data_state").className = "btn btn-secondary"; } else if (arg.channel_state == 'SENDING_SIGNALLING') { document.getElementById("signalling_state").className = "btn btn-danger"; document.getElementById("data_state").className = "btn btn-secondary"; } else if (arg.channel_state == 'RECEIVING_DATA') { document.getElementById("signalling_state").className = "btn btn-secondary"; document.getElementById("data_state").className = "btn btn-success"; } else if (arg.channel_state == 'SENDING_DATA') { document.getElementById("signalling_state").className = "btn btn-secondary"; document.getElementById("data_state").className = "btn btn-danger"; } else { document.getElementById("signalling_state").className = "btn btn-secondary" document.getElementById("busy_state").className = "btn btn-secondary" } // SET FREQUENCY document.getElementById("frequency").innerHTML = arg.frequency // SET MODE document.getElementById("mode").innerHTML = arg.mode // SET BANDWITH document.getElementById("bandwith").innerHTML = arg.bandwith // SET BYTES PER MINUTE if (typeof(arg.arq_bytes_per_minute) == 'undefined') { var arq_bytes_per_minute = 0 } else { var arq_bytes_per_minute = arg.arq_bytes_per_minute } document.getElementById("bytes_per_min").innerHTML = arq_bytes_per_minute // SET TOTAL BYTES if (typeof(arg.total_bytes) == 'undefined') { var total_bytes = 0 } else { var total_bytes = arg.total_bytes } document.getElementById("total_bytes").innerHTML = total_bytes document.getElementById("transmission_progress").setAttribute("aria-valuenow", arg.arq_transmission_percent) document.getElementById("transmission_progress").setAttribute("style", "width:" + arg.arq_transmission_percent + "%;") // UPDATE HEARD STATIONS var tbl = document.getElementById("heardstations"); document.getElementById("heardstations").innerHTML = '' if (typeof(arg.stations) == 'undefined') { var heardStationsLength = 0 } else { var heardStationsLength = arg.stations.length } for (i = 0; i < heardStationsLength; i++) { // first we update the PING window if (arg.stations[i]['DXCALLSIGN'] == document.getElementById("dxCall").value) { var dxGrid = arg.stations[i]['DXGRID'] var myGrid = document.getElementById("myGrid").value try { var dist = parseInt(distance(myGrid, dxGrid)) + ' km'; document.getElementById("pingDistance").innerHTML = dist document.getElementById("dataModalPingDistance").innerHTML = dist } catch { document.getElementById("pingDistance").innerHTML = '---' document.getElementById("dataModalPingDistance").innerHTML = '---' } document.getElementById("pingDB").innerHTML = arg.stations[i]['SNR'] document.getElementById("dataModalPingDB").innerHTML = arg.stations[i]['SNR'] } // now we update the heard stations list var row = document.createElement("tr"); //https://stackoverflow.com/q/51421470 //https://stackoverflow.com/a/847196 timestampRaw = arg.stations[i]['TIMESTAMP'] var date = new Date(timestampRaw * 1000); var hours = date.getHours(); var minutes = "0" + date.getMinutes(); var seconds = "0" + date.getSeconds(); var datetime = hours + ':' + minutes.substr(-2) + ':' + seconds.substr(-2); var timestamp = document.createElement("td"); var timestampText = document.createElement('span'); timestampText.innerText = datetime timestamp.appendChild(timestampText); var dxCall = document.createElement("td"); var dxCallText = document.createElement('span'); dxCallText.innerText = arg.stations[i]['DXCALLSIGN'] dxCall.appendChild(dxCallText); var dxGrid = document.createElement("td"); var dxGridText = document.createElement('span'); dxGridText.innerText = arg.stations[i]['DXGRID'] dxGrid.appendChild(dxGridText); var gridDistance = document.createElement("td"); var gridDistanceText = document.createElement('span'); try { gridDistanceText.innerText = parseInt(distance(document.getElementById("myGrid").value, arg.stations[i]['DXGRID'])) + ' km'; } catch { gridDistanceText.innerText = '---' } gridDistance.appendChild(gridDistanceText); var dataType = document.createElement("td"); var dataTypeText = document.createElement('span'); dataTypeText.innerText = arg.stations[i]['DATATYPE'] dataType.appendChild(dataTypeText); if (dataTypeText.innerText == 'CQ CQ CQ') { row.classList.add("table-success"); } if (dataTypeText.innerText == 'DATA-CHANNEL') { row.classList.add("table-warning"); } if (dataTypeText.innerText == 'BEACON') { row.classList.add("table-light"); } if (dataTypeText.innerText == 'PING') { row.classList.add("table-info"); } if (dataTypeText.innerText == 'PING-ACK') { row.classList.add("table-primary"); } var snr = document.createElement("td"); var snrText = document.createElement('span'); snrText.innerText = arg.stations[i]['SNR'] snr.appendChild(snrText); row.appendChild(timestamp); row.appendChild(dxCall); row.appendChild(dxGrid); row.appendChild(gridDistance); row.appendChild(dataType); row.appendChild(snr); tbl.appendChild(row); } }); ipcRenderer.on('action-update-daemon-state', (event, arg) => { // RAM document.getElementById("progressbar_ram").setAttribute("aria-valuenow", arg.ram_usage) document.getElementById("progressbar_ram").setAttribute("style", "width:" + arg.ram_usage + "%;") document.getElementById("progressbar_ram_value").innerHTML = arg.ram_usage + "%" // CPU document.getElementById("progressbar_cpu").setAttribute("aria-valuenow", arg.cpu_usage) document.getElementById("progressbar_cpu").setAttribute("style", "width:" + arg.cpu_usage + "%;") document.getElementById("progressbar_cpu_value").innerHTML = arg.cpu_usage + "%" // UPDATE AUDIO INPUT if (document.getElementById("audio_input_selectbox").length != arg.input_devices.length) { document.getElementById("audio_input_selectbox").innerHTML = "" for (i = 0; i < arg.input_devices.length; i++) { var option = document.createElement("option"); option.text = arg.input_devices[i]['NAME']; option.value = arg.input_devices[i]['ID']; document.getElementById("audio_input_selectbox").add(option); } } // UPDATE AUDIO OUTPUT if (document.getElementById("audio_output_selectbox").length != arg.output_devices.length) { document.getElementById("audio_output_selectbox").innerHTML = "" for (i = 0; i < arg.output_devices.length; i++) { var option = document.createElement("option"); option.text = arg.output_devices[i]['NAME']; option.value = arg.output_devices[i]['ID']; document.getElementById("audio_output_selectbox").add(option); } } // UPDATE SERIAL DEVICES if (document.getElementById("hamlib_deviceport").length != arg.serial_devices.length) { document.getElementById("hamlib_deviceport").innerHTML = "" for (i = 0; i < arg.serial_devices.length; i++) { var option = document.createElement("option"); option.text = arg.serial_devices[i]['DESCRIPTION']; option.value = arg.serial_devices[i]['PORT']; document.getElementById("hamlib_deviceport").add(option); } } if (document.getElementById("hamlib_ptt_port").length != arg.serial_devices.length) { document.getElementById("hamlib_ptt_port").innerHTML = "" for (i = 0; i < arg.serial_devices.length; i++) { var option = document.createElement("option"); option.text = arg.serial_devices[i]['DESCRIPTION']; option.value = arg.serial_devices[i]['PORT']; document.getElementById("hamlib_ptt_port").add(option); } } // TNC RUNNING STATE document.getElementById("tnc_running_state").innerHTML = arg.tnc_running_state; if (arg.tnc_running_state == "running") { document.getElementById('hamlib_deviceid').disabled = true document.getElementById('hamlib_deviceport').disabled = true document.getElementById('hamlib_ptt_port').disabled = true document.getElementById('hamlib_ptt_protocol').disabled = true document.getElementById('audio_input_selectbox').disabled = true document.getElementById('audio_output_selectbox').disabled = true document.getElementById('stopTNC').disabled = false document.getElementById('startTNC').disabled = true //document.getElementById('myCall').disabled = false document.getElementById('dxCall').disabled = false //document.getElementById('saveMyCall').disabled = false //document.getElementById('myGrid').disabled = false //document.getElementById('saveMyGrid').disabled = false document.getElementById("hamlib_serialspeed").disabled = true //document.getElementById("startTransmission").disabled = false } else { document.getElementById('hamlib_deviceid').disabled = false document.getElementById('hamlib_deviceport').disabled = false document.getElementById('hamlib_ptt_port').disabled = false document.getElementById('hamlib_ptt_protocol').disabled = false document.getElementById('audio_input_selectbox').disabled = false document.getElementById('audio_output_selectbox').disabled = false document.getElementById('stopTNC').disabled = true document.getElementById('startTNC').disabled = false //document.getElementById('myCall').disabled = true document.getElementById('dxCall').disabled = true //document.getElementById('saveMyCall').disabled = true //document.getElementById('myGrid').disabled = true //document.getElementById('saveMyGrid').disabled = true document.getElementById("hamlib_serialspeed").disabled = false //document.getElementById("startTransmission").disabled = true } }); ipcRenderer.on('action-update-daemon-connection', (event, arg) => { if (arg.daemon_connection == 'open') { document.getElementById("daemon_connection_state").className = "btn btn-success"; document.getElementById("blurdiv").style.webkitFilter = "blur(0px)"; } if (arg.daemon_connection == 'opening') { document.getElementById("daemon_connection_state").className = "btn btn-warning"; document.getElementById("blurdiv").style.webkitFilter = "blur(10px)"; } if (arg.daemon_connection == 'closed') { document.getElementById("daemon_connection_state").className = "btn btn-danger"; document.getElementById("blurdiv").style.webkitFilter = "blur(10px)"; } }); ipcRenderer.on('action-update-rx-buffer', (event, arg) => { var data = arg.data["DATA"] var tbl = document.getElementById("rx-data"); document.getElementById("rx-data").innerHTML = '' for (i = 0; i < arg.data.length; i++) { // first we update the PING window if (arg.data[i]['DXCALLSIGN'] == document.getElementById("dxCall").value) { /* // if we are sending data without doing a ping before, we don't have a grid locator available. This could be a future feature for the TNC! if(arg.data[i]['DXGRID'] != ''){ document.getElementById("pingDistance").innerHTML = arg.stations[i]['DXGRID'] } */ document.getElementById("pingDB").innerHTML = arg.stations[i]['SNR'] } // now we update the received files list var row = document.createElement("tr"); //https://stackoverflow.com/q/51421470 //https://stackoverflow.com/a/847196 timestampRaw = arg.data[i]['TIMESTAMP'] var date = new Date(timestampRaw * 1000); var hours = date.getHours(); var minutes = "0" + date.getMinutes(); var seconds = "0" + date.getSeconds(); var datetime = hours + ':' + minutes.substr(-2) + ':' + seconds.substr(-2); var timestamp = document.createElement("td"); var timestampText = document.createElement('span'); timestampText.innerText = datetime timestamp.appendChild(timestampText); var dxCall = document.createElement("td"); var dxCallText = document.createElement('span'); dxCallText.innerText = arg.data[i]['DXCALLSIGN'] dxCall.appendChild(dxCallText); /* var dxGrid = document.createElement("td"); var dxGridText = document.createElement('span'); dxGridText.innerText = arg.data[i]['DXGRID'] dxGrid.appendChild(dxGridText); */ var fileName = document.createElement("td"); var fileNameText = document.createElement('span'); var fileNameString = arg.data[i]['RXDATA'][0]['filename'] fileNameText.innerText = fileNameString fileName.appendChild(fileNameText); row.appendChild(timestamp); row.appendChild(dxCall); // row.appendChild(dxGrid); row.appendChild(fileName); tbl.appendChild(row); // https://stackoverflow.com/a/26227660 var appDataFolder = process.env.HOME console.log("appDataFolder:" + appDataFolder) var applicationFolder = path.join(appDataFolder, "FreeDATA"); console.log(applicationFolder) var receivedFilesFolder = path.join(applicationFolder, "receivedFiles"); console.log("receivedFilesFolder: " + receivedFilesFolder) // Creates receivedFiles folder if not exists // https://stackoverflow.com/a/13544465 fs.mkdir(receivedFilesFolder, { recursive: true }, function(err) { console.log(err); }); // write file to rxdata folder var base64String = arg.data[i]['RXDATA'][0]['data'] // remove header from base64 String // https://www.codeblocq.com/2016/04/Convert-a-base64-string-to-a-file-in-Node/ var base64Data = base64String.split(';base64,').pop() //write data to file var receivedFile = path.join(receivedFilesFolder, fileNameString); console.log(receivedFile) require("fs").writeFile(receivedFile, base64Data, 'base64', function(err) { console.log(err); }); } }); ipcRenderer.on('run-tnc-command', (event, arg) => { if (arg.command == 'saveMyCall') { sock.saveMyCall(arg.callsign) } if (arg.command == 'saveMyGrid') { sock.saveMyGrid(arg.grid) } if (arg.command == 'ping') { sock.sendPing(arg.dxcallsign) } if (arg.command == 'sendFile') { sock.sendFile(arg.dxcallsign, arg.mode, arg.frames, arg.filename, arg.filetype, arg.data, arg.checksum) } if (arg.command == 'sendMessage') { sock.sendMessage(arg.dxcallsign, arg.mode, arg.frames, arg.data, arg.checksum) } if (arg.command == 'stopTransmission') { sock.stopTransmission() } });