Files
FACULTATE-LICENTA/User/src/main/main.js
T
2024-04-24 22:47:01 +03:00

388 lines
12 KiB
JavaScript

const {app, BrowserWindow, screen, ipcMain, dialog} = require('electron');
const fs = require('fs');
const path = require('path');
const crypto = require('crypto');
const {fork} = require('child_process');
const {encryptFileInPlace, decryptFileInPlace} = require('./aes_encrypt');
const {lockFile, unlockFile} = require("../../helpers/lock_mechanism");
const isMac = process.platform === 'darwin';
let html_page = undefined;
let mainWindow = undefined;
let alertWindow = undefined;
let fetcherProcess = null;
let backupProcess = null;
let externalEndpointsProcess = null;
let sendFileProcess = null;
const createInitialKeys = () => {
const SECRET_KEY = crypto.randomBytes(32);
const IV = crypto.randomBytes(16);
const secretKeyPath = path.join(__dirname, '..', '..', 'secret.key');
const ivPath = path.join(__dirname, '..', '..', 'iv.key');
fs.writeFileSync(secretKeyPath, SECRET_KEY);
console.log(`Secret Key saved to ${secretKeyPath}`);
fs.writeFileSync(ivPath, IV);
console.log(`IV saved to ${ivPath}`);
}
const deleteMainComponentsAtErrorStart = () => {
const ipConfigPath = path.join(__dirname, '..', '..', 'ipConfig.json');
const loginDataPath = path.join(__dirname, '..', '..', 'loginData.json');
fs.unlink(ipConfigPath, (err) => {
if (err) {
console.error('Error deleting file:', err);
return;
}
console.log('File deleted successfully: ' + 'ipConfig.json');
});
fs.unlink(loginDataPath, (err) => {
if (err) {
console.error('Error deleting file:', err);
return;
}
console.log('File deleted successfully: ' + 'loginData.json');
});
}
const checkForServerConnection = async () => {
const pathToIpConfig = path.join(__dirname, '..', '..', 'ipConfig.json');
try {
await fs.promises.access(pathToIpConfig);
await lockFile(pathToIpConfig);
await decryptFileInPlace(pathToIpConfig);
const ipConfig = await fs.promises.readFile(pathToIpConfig, 'utf-8');
const { ip } = JSON.parse(ipConfig);
const response = await fetch(`http://${ip}/heartbeat`);
await encryptFileInPlace(pathToIpConfig)
await unlockFile(pathToIpConfig);
return response.ok;
} catch (error) {
console.error("Error:", error);
return false;
}
};
const createMainWindow = (async (title, width, height) => {
mainWindow = new BrowserWindow({
title: title,
width: width,
height: height,
resizable: false,
icon: path.join(__dirname, '..', 'renderer', 'assets', 'hard-disk.png'),
webPreferences: {
preload: path.join(__dirname, 'preload.js')
}
});
try {
await fs.promises.access(path.join(__dirname, '..', '..', 'secret.key'), fs.constants.F_OK);
await fs.promises.access(path.join(__dirname, '..', '..', 'iv.key'), fs.constants.F_OK);
} catch (err) {
createInitialKeys();
deleteMainComponentsAtErrorStart();
}
html_page = await checkForServerConnection() ? 'login.html' : 'ip_submit.html';
//mainWindow.setMenu(null);
mainWindow.loadFile(path.join(__dirname, '..', 'renderer', 'html', html_page))
.then(() => {
console.log('Main window loaded!')
})
.catch(err => console.error('Failed to load main window:', err));
});
const createAlertWindow = (title, width, height) => {
alertWindow = new BrowserWindow({
width: width,
height: height,
title: title,
icon: path.join(__dirname, '..', 'renderer', 'assets', 'hard-disk.png'),
resizable: false,
webPreferences: {
nodeIntegration: false,
preload: path.join(__dirname, 'preload.js')
}
});
//alertWindow.setMenu(null);
alertWindow.loadFile(path.join(__dirname, '..', 'renderer', 'html', 'alert_modal.html')).then(() => {
console.log('Alert window loaded!')
})
.catch(err => console.error('Failed to load alert window:', err));
alertWindow.on('closed', () => {
alertWindow = undefined;
});
}
function showAlert(message) {
if (alertWindow === undefined) {
const title = 'Alert';
const mainScreen = screen.getPrimaryDisplay();
const {width, height} = mainScreen.size;
createAlertWindow(title, width / 4, height / 4);
}
alertWindow.webContents.once('dom-ready', () => {
alertWindow.webContents.executeJavaScript(`showAlert("${message}")`);
});
}
app.whenReady().then(() => {
const title = "Application";
const mainScreen = screen.getPrimaryDisplay();
const {width, height} = mainScreen.size;
createMainWindow(title, width / 1.5, height / 1.5);
app.on('activate', () => {
if (BrowserWindow.getAllWindows().length === 0) {
createMainWindow(title, width, height);
}
});
});
app.on('before-quit', () => {
if (backupProcess !== null) {
backupProcess.kill();
}
if (externalEndpointsProcess !== null) {
externalEndpointsProcess.kill();
}
if (fetcherProcess !== null) {
fetcherProcess.kill();
}
if (sendFileProcess !== null) {
sendFileProcess.kill();
}
});
app.on('window-all-closed', () => {
if (!isMac) {
app.quit();
}
});
ipcMain.handle('write-file', async (event, fileName, content) => {
try {
let filePath = path.join(__dirname, '..', '..', fileName);
await lockFile(filePath);
await fs.promises.writeFile(filePath, content);
await encryptFileInPlace(filePath);
await unlockFile(filePath)
console.log(`File successfully written to ${filePath}`);
return {success: true};
} catch (error) {
console.error('Failed to write file:', error);
return {success: false, error: error.message};
}
});
ipcMain.handle('delete-file', async (event, fileName) => {
try {
let filePath = path.join(__dirname, '..', '..', fileName);
await fs.promises.unlink(filePath);
console.log(`File ${filePath} successfully deleted`);
return {success: true};
} catch (error) {
console.error('Failed to delete file:', error);
return {success: false, error: error.message};
}
});
ipcMain.handle('read-file', async (event, fileName) => {
try {
let filePath = path.join(__dirname, '..', '..', fileName);
await lockFile(filePath);
await decryptFileInPlace(filePath);
const content = await fs.promises.readFile(filePath, 'utf-8');
await encryptFileInPlace(filePath);
await unlockFile(filePath);
return {success: true, content};
} catch (error) {
console.error('Error reading file:', error);
return {success: false, error: error.message};
}
});
ipcMain.handle('change-content', async (event, nextPage) => {
try {
html_page = nextPage;
await mainWindow.loadFile(path.join(__dirname, '..', 'renderer', 'html', nextPage));
return true;
} catch (error) {
console.error('Error changing content:', error);
return false;
}
});
ipcMain.handle('open-dir-dialog', async (event) => {
try {
const result = await dialog.showOpenDialog({
properties: ['openDirectory'],
});
if (result.canceled || result.filePaths.length === 0) {
return {canceled: true}
}
return result.filePaths[0];
} catch (error) {
console.error('Error opening file dialog:', error);
return null;
}
})
ipcMain.handle('open-json-dir-config', async (event, fileName) => {
try {
const result = await dialog.showOpenDialog({
properties: ['openDirectory'],
});
if (result.canceled || result.filePaths.length === 0) {
return {canceled: true}
}
const dirPath = result.filePaths[0];
await fs.promises.writeFile(
path.join(__dirname, '..', '..', fileName),
JSON.stringify({
path: dirPath
}, null, 2));
return true;
} catch (error) {
console.error('Error opening file dialog:', error);
return {error: error.message};
}
});
ipcMain.handle('open-file-dialog', async (event) => {
const result = await dialog.showOpenDialog({
properties: ['openFile']
});
return result.filePaths[0] || '';
});
ipcMain.handle('check-file-exists', async (event, fileName) => {
try {
const filePath = path.join(__dirname, '..', '..', fileName);
return await fs.promises.access(filePath)
.then(() => true)
.catch(() => false);
} catch (error) {
console.error('Error checking file existence:', error);
throw error; // Propagate the error to the renderer process
}
});
ipcMain.handle('show-alert', async (event, message) => {
showAlert(message);
});
ipcMain.on('close-alert-window', () => {
if (alertWindow) {
alertWindow.close();
alertWindow = undefined;
}
});
//External processes
ipcMain.handle('start-main-processes', async (event, args) => {
if (!backupProcess) {
backupProcess = fork(path.join(__dirname, '..', '..', 'jobs', 'backup.js'), args, { silent: false });
backupProcess.on('exit', () => {
backupProcess = null;
});
backupProcess.on('error', (err) => {
console.log('Backup process error:', err);
});
}
if (!fetcherProcess) {
fetcherProcess = fork(path.join(__dirname, '..', '..', 'jobs', 'fetcher.js'), args, { silent: false });
fetcherProcess.on('exit', () => {
fetcherProcess = null;
});
fetcherProcess.on('error', (err) => {
console.log('Fetcher process error:', err);
});
fetcherProcess.on('message', (message) => {
if (message.type === 'startBackup') {
backupProcess.send({
type: 'startBackup'
});
}
});
}
if (externalEndpointsProcess) {
externalEndpointsProcess = fork(path.join(__dirname, '..', '..', 'jobs', 'external_endpoints.js'), args, { silent: false });
externalEndpointsProcess.on('exit', () => {
externalEndpointsProcess = null;
});
externalEndpointsProcess.on('error', (err) => {
console.log('External endpoints process error:', err);
});
}
return true; // Indicate that the operation has started
});
ipcMain.handle('start-send-file-process', async (event, args) => {
if (sendFileProcess === null) {
sendFileProcess = fork(path.join(__dirname, '..', '..', 'jobs', 'send_file.js'), args, {silent: false});
sendFileProcess.on('exit', () => {
sendFileProcess = null;
});
}
return true; // Indicate that the operation has started
});
ipcMain.handle('kill-before-logout', async(event) =>{
if (backupProcess !== null) {
backupProcess.kill('SIGINT');
}
if (externalEndpointsProcess !== null) {
externalEndpointsProcess.kill('SIGINT');
}
if (fetcherProcess !== null) {
fetcherProcess.kill('SIGINT');
}
if (sendFileProcess !== null) {
sendFileProcess.kill('SIGINT');
}
})
ipcMain.handle('decrypt-backup-files', async(event, destPath) => {
console.log('ai intrat in handle')
if(backupProcess != null){
console.log('esti in process');
backupProcess.send({
type: 'decryptBackup',
decryptDestPath: destPath
});
}
})