Files
NebulaBrowser/main.js
T
andrew da7f871d69 Improve popup, navigation, and user agent handling
Refactored window.open and new-window logic to better support OAuth/SSO popups and preserve POST bodies, removing deprecated event handlers that broke login flows. Updated user agent handling to append Nebula branding to the real Chromium UA for improved compatibility with anti-bot systems. Enhanced webview event handling for Cloudflare challenge detection and refined tab/popup heuristics. Cleaned up site-history.json.
2025-08-13 11:15:54 +12:00

507 lines
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JavaScript
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const { app, BrowserWindow, ipcMain, session, screen, shell } = require('electron');
const fs = require('fs');
const path = require('path');
const os = require('os');
const PerformanceMonitor = require('./performance-monitor');
const GPUFallback = require('./gpu-fallback');
const GPUConfig = require('./gpu-config');
// Initialize performance monitoring and GPU management
const perfMonitor = new PerformanceMonitor();
const gpuFallback = new GPUFallback();
const gpuConfig = new GPUConfig();
// Configure GPU settings before app is ready
gpuConfig.configure();
// Set a custom application name
app.setName('Nebula');
// Setup GPU crash handling
gpuFallback.setupCrashHandling();
// --- clear any prior registrations to prevent duplicatehandler errors ---
ipcMain.removeHandler('window-minimize');
ipcMain.removeHandler('window-maximize');
ipcMain.removeHandler('window-close');
function createWindow(startUrl) {
// Get the available screen size
const { width, height } = screen.getPrimaryDisplay().workAreaSize;
// Ensure nativeWindowOpen is disabled
let windowOptions = {
width,
height,
resizable: true,
webPreferences: {
preload: path.join(__dirname, 'preload.js'),
nodeIntegration: false, // Security & performance improvement
contextIsolation: true,
webviewTag: true,
enableRemoteModule: false, // Deprecated and slow
nodeIntegrationInSubFrames: false, // Security & performance
nativeWindowOpen: false,
spellcheck: false, // Disable if not needed
webSecurity: true,
allowRunningInsecureContent: false,
experimentalFeatures: false,
offscreen: false, // Ensure on-screen rendering for GPU
enableWebSQL: false, // Disable deprecated features
plugins: false, // Disable plugins that might interfere with GPU
// OAuth compatibility settings
partition: 'persist:main',
sandbox: false // Allow full browser capabilities for OAuth
},
fullscreen: false,
autoHideMenuBar: true,
icon: process.platform === 'darwin'
? path.join(__dirname, 'assets/images/Logos/Nebula-Favicon.icns')
: path.join(__dirname, 'assets/images/Logos/Nebula-favicon.png'),
title: 'Nebula',
};
if (process.platform === 'darwin') {
Object.assign(windowOptions, {
frame: true,
titleBarStyle: 'hidden',
trafficLightPosition: { x: 15, y: 20 },
backgroundColor: '#00000000',
transparent: true,
});
} else if (process.platform === 'win32') {
Object.assign(windowOptions, {
frame: true, // Use default Windows title bar.
// removed titleBarOverlay to restore native Windows controls.
});
} else {
windowOptions.frame = true;
}
const win = new BrowserWindow(windowOptions);
// Allow window.open() popups (e.g. OAuth / SSO / school portals) so that
// POST form submissions and opener relationships are preserved.
// We still restrict to http/https for safety; everything else is denied.
win.webContents.setWindowOpenHandler(({ url }) => {
if (url.startsWith('http://') || url.startsWith('https://')) {
return { action: 'allow' };
}
return { action: 'deny' };
});
// IMPORTANT: Do NOT intercept 'will-navigate' with preventDefault() because
// that strips POST bodies (turning logins into GET requests). Let Chromium
// perform the navigation normally. If you need to observe navigations, add
// a listener without calling preventDefault().
// (Previous code here was causing login forms to fail.)
// Remove deprecated 'new-window' handler that forcibly loaded targets in the
// same window; this also broke some auth popup flows. setWindowOpenHandler
// above now governs popup behavior.
// ensure all embedded <webview> tags behave predictably without heavy injections
win.webContents.on('did-attach-webview', (event, webContents) => {
// Allow popups inside <webview> as well (required for some login flows)
webContents.setWindowOpenHandler(({ url }) => {
if (url.startsWith('http://') || url.startsWith('https://')) {
return { action: 'allow' };
}
return { action: 'deny' };
});
});
win.loadFile('renderer/index.html');
// if caller passed in a URL, forward it to the renderer after load
if (startUrl) {
win.webContents.once('did-finish-load', () => {
win.webContents.send('open-url', startUrl);
});
}
// Set default zoom to 100%
const zoomFactor = 1.0;
const loadStartTime = Date.now();
win.webContents.on('did-finish-load', () => {
win.webContents.setZoomFactor(zoomFactor);
// Track load time for performance monitoring
const loadTime = Date.now() - loadStartTime;
perfMonitor.trackLoadTime(win.webContents.getURL(), loadTime);
});
// Renderer manages history; no main-process recording here
}
// This method will be called when Electron has finished initialization
app.whenReady().then(async () => {
// Check GPU status and handle errors
const gpuStatus = await gpuConfig.checkGPUStatus();
console.log('GPU Configuration Results:');
console.log('- GPU Status:', gpuStatus);
console.log('- Recommendations:', gpuConfig.getRecommendations());
// Handle GPU process crashes
app.on('gpu-process-crashed', (event, killed) => {
console.warn('GPU process crashed, killed:', killed);
if (!killed) {
console.log('Attempting to recover GPU process...');
}
});
// Optimize session settings for performance and OAuth compatibility
const sessionsToConfigure = [session.fromPartition('persist:main'), session.defaultSession];
try {
for (const ses of sessionsToConfigure) {
// Configure session for OAuth compatibility (Google, etc.)
ses.setPermissionRequestHandler((webContents, permission, callback) => {
// Allow necessary permissions for OAuth flows
if (['notifications', 'geolocation', 'camera', 'microphone'].includes(permission)) {
callback(false); // Deny by default for privacy
} else {
callback(true); // Allow others like storage access
}
});
// Configure user agent for better compatibility:
// Previously this forced Chrome/120 which is stale and can cause anti-bot / Cloudflare challenges
// to fail due to UA / feature mismatch fingerprinting. Use the real Chromium UA then append branding.
try {
const realUA = ses.getUserAgent();
if (realUA && !realUA.includes('Nebula/')) {
ses.setUserAgent(realUA + ' Nebula/1.0.0');
}
} catch (e) {
console.warn('Failed to read real user agent, keeping default:', e);
}
// Configure cookies for OAuth compatibility
ses.cookies.on('changed', (event, cookie, cause, removed) => {
// Log cookie changes for debugging OAuth issues
if (cookie.domain && (cookie.domain.includes('google') || cookie.domain.includes('accounts'))) {
console.log(`Cookie ${removed ? 'removed' : 'added'}: ${cookie.name} for ${cookie.domain}`);
}
});
// Optional: add headers only for OAuth flows; avoid forcing cache headers globally
ses.webRequest.onBeforeSendHeaders((details, callback) => {
const headers = details.requestHeaders;
// Add richer headers for sensitive flows (OAuth / login) to look like a real browser
if (details.url.includes('accounts.google.com') || details.url.includes('oauth')) {
headers['Referrer-Policy'] = 'strict-origin-when-cross-origin';
headers['Accept'] = headers['Accept'] || 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8';
}
// Ensure Accept-Language is present (Cloudflare & some WAFs use this in heuristics)
if (!headers['Accept-Language'] && !headers['accept-language']) {
headers['Accept-Language'] = 'en-US,en;q=0.9';
}
callback({ requestHeaders: headers });
});
}
console.log('Session configured successfully for OAuth compatibility');
} catch (err) {
console.error('Session setup error:', err);
}
// Start performance monitoring
perfMonitor.start();
createWindow();
if (process.platform === 'darwin') {
// Set macOS dock icon using an icns file for proper display.
app.dock.setIcon(path.join(__dirname, 'assets/images/Logos/Nebula-Icon.icns'));
}
app.on('activate', () => {
if (BrowserWindow.getAllWindows().length === 0) createWindow();
});
});
// Quit when all windows are closed.
app.on('window-all-closed', () => {
if (process.platform !== 'darwin') app.quit();
});
// ipcMain handlers
// --- window control handlers (only registered once now)
ipcMain.handle('window-minimize', event => {
BrowserWindow.fromWebContents(event.sender).minimize();
});
ipcMain.handle('window-maximize', event => {
const w = BrowserWindow.fromWebContents(event.sender);
w.isMaximized() ? w.unmaximize() : w.maximize();
});
ipcMain.handle('window-close', event => {
BrowserWindow.fromWebContents(event.sender).close();
});
// Add site and search history IPC handlers
// Site history is now handled via localStorage in the renderer
// But keep these handlers for compatibility and potential future use
ipcMain.handle('load-site-history', async () => {
const filePath = path.join(__dirname, 'site-history.json');
try {
const data = await fs.promises.readFile(filePath, 'utf-8');
return JSON.parse(data);
} catch (err) {
return [];
}
});
ipcMain.handle('save-site-history', async (event, history) => {
const filePath = path.join(__dirname, 'site-history.json');
try {
await fs.promises.writeFile(filePath, JSON.stringify(history, null, 2));
return true;
} catch (err) {
return false;
}
});
ipcMain.handle('clear-site-history', async () => {
const filePath = path.join(__dirname, 'site-history.json');
try {
await fs.promises.writeFile(filePath, JSON.stringify([], null, 2));
return true;
} catch (err) {
return false;
}
});
ipcMain.handle('load-search-history', async () => {
const filePath = path.join(__dirname, 'search-history.json');
try {
const data = await fs.promises.readFile(filePath, 'utf-8');
return JSON.parse(data);
} catch (err) {
return [];
}
});
ipcMain.handle('save-search-history', async (event, history) => {
const filePath = path.join(__dirname, 'search-history.json');
try {
await fs.promises.writeFile(filePath, JSON.stringify(history, null, 2));
return true;
} catch (err) {
return false;
}
});
// debug: log defaulthomepage changes from renderer
ipcMain.on('homepage-changed', (event, url) => {
console.log('[MAIN] homepage-changed →', url);
});
// Bookmark management
ipcMain.handle('load-bookmarks', async () => {
try {
const bookmarksPath = path.join(__dirname, 'bookmarks.json');
try {
await fs.promises.access(bookmarksPath);
} catch {
console.log('No bookmarks file found, starting with empty array');
return [];
}
const data = await fs.promises.readFile(bookmarksPath, 'utf8');
const bookmarks = JSON.parse(data);
console.log(`Loaded ${bookmarks.length} bookmarks from file`);
return bookmarks;
} catch (error) {
console.error('Error loading bookmarks:', error);
// Try to create a backup if the file is corrupted
const bookmarksPath = path.join(__dirname, 'bookmarks.json');
const backupPath = path.join(__dirname, `bookmarks.backup.${Date.now()}.json`);
try {
await fs.promises.copyFile(bookmarksPath, backupPath);
console.log(`Corrupted bookmarks file backed up to: ${backupPath}`);
} catch (backupError) {
console.error('Failed to create backup:', backupError);
}
return [];
}
});
ipcMain.handle('save-bookmarks', async (event, bookmarks) => {
try {
const bookmarksPath = path.join(__dirname, 'bookmarks.json');
try {
await fs.promises.access(bookmarksPath);
const backupPath = path.join(__dirname, 'bookmarks.backup.json');
await fs.promises.copyFile(bookmarksPath, backupPath);
} catch {}
await fs.promises.writeFile(bookmarksPath, JSON.stringify(bookmarks, null, 2));
console.log(`Saved ${bookmarks.length} bookmarks to file`);
return true;
} catch (error) {
console.error('Error saving bookmarks:', error);
return false;
}
});
ipcMain.handle('clear-browser-data', async () => {
try {
const sessionsToClear = [session.defaultSession, session.fromPartition('persist:main')];
for (const ses of sessionsToClear) {
if (!ses) continue;
// Clear all common site storage types
await ses.clearStorageData({
storages: [
'cookies',
'localstorage',
'indexdb',
'filesystem',
'websql',
'serviceworkers',
'caches',
'shadercache',
'appcache'
],
});
// Clear caches and auth
await ses.clearCache();
await ses.clearAuthCache();
}
// Also reset on-disk history JSON files managed by the app
const siteHistoryPath = path.join(__dirname, 'site-history.json');
const searchHistoryPath = path.join(__dirname, 'search-history.json');
try { await fs.promises.writeFile(siteHistoryPath, JSON.stringify([], null, 2)); } catch {}
try { await fs.promises.writeFile(searchHistoryPath, JSON.stringify([], null, 2)); } catch {}
return true; // Indicate success
} catch (error) {
console.error('Failed to clear browser data:', error);
return false; // Indicate failure
}
});
// Optional: standalone clear for search history JSON
ipcMain.handle('clear-search-history', async () => {
const filePath = path.join(__dirname, 'search-history.json');
try {
await fs.promises.writeFile(filePath, JSON.stringify([], null, 2));
return true;
} catch (err) {
return false;
}
});
ipcMain.handle('get-zoom-factor', event => {
const wc = BrowserWindow.fromWebContents(event.sender).webContents;
return wc.getZoomFactor();
});
ipcMain.handle('zoom-in', event => {
const wc = BrowserWindow.fromWebContents(event.sender).webContents;
const current = wc.getZoomFactor();
const z = Math.min(current + 0.1, 3);
wc.setZoomFactor(z);
return z;
});
ipcMain.handle('zoom-out', event => {
const wc = BrowserWindow.fromWebContents(event.sender).webContents;
const current = wc.getZoomFactor();
const z = Math.max(current - 0.1, 0.25);
wc.setZoomFactor(z);
return z;
});
// allow renderer to pop a tab into its own window
ipcMain.handle('open-tab-in-new-window', (event, url) => {
createWindow(url);
});
ipcMain.handle('save-site-history-entry', async (event, url) => {
const filePath = path.join(__dirname, 'site-history.json');
try {
let data = [];
try {
const raw = await fs.promises.readFile(filePath, 'utf8');
data = JSON.parse(raw);
} catch {}
// Remove if already exists to avoid duplicates
data = data.filter(item => item !== url);
// Add to beginning and clamp size
data.unshift(url);
if (data.length > 100) data = data.slice(0, 100);
await fs.promises.writeFile(filePath, JSON.stringify(data, null, 2));
return true;
} catch (err) {
console.error('[MAIN] Error saving site history entry:', err);
return false;
}
});
// Add performance monitoring IPC handlers
ipcMain.handle('get-performance-report', () => {
return perfMonitor.getReport();
});
ipcMain.handle('force-gc', () => {
perfMonitor.forceGC();
return true;
});
// GPU diagnostics handler
ipcMain.handle('get-gpu-info', async () => {
try {
const gpuStatus = await gpuConfig.checkGPUStatus();
const fallbackStatus = gpuFallback.getStatus();
const recommendations = gpuConfig.getRecommendations();
return {
...gpuStatus,
fallbackStatus: fallbackStatus,
recommendations: recommendations,
isOptimized: gpuStatus.isSupported && !fallbackStatus.fallbackLevel
};
} catch (err) {
console.error('Error getting GPU info:', err);
return { error: err.message, isSupported: false };
}
});
// Force GPU fallback handler
ipcMain.handle('apply-gpu-fallback', (event, level) => {
try {
gpuFallback.applyFallback(level);
return { success: true, level: level };
} catch (err) {
console.error('Error applying GPU fallback:', err);
return { error: err.message };
}
});
// About/info handler
ipcMain.handle('get-about-info', () => {
try {
return {
appName: app.getName(),
appVersion: app.getVersion(),
isPackaged: app.isPackaged,
appPath: app.getAppPath(),
userDataPath: app.getPath('userData'),
electronVersion: process.versions.electron,
chromeVersion: process.versions.chrome,
nodeVersion: process.versions.node,
v8Version: process.versions.v8,
platform: process.platform,
arch: process.arch,
osType: os.type(),
osRelease: os.release(),
cpu: os.cpus()?.[0]?.model || 'Unknown CPU',
totalMemGB: Math.round((os.totalmem() / (1024 ** 3)) * 10) / 10,
};
} catch (err) {
console.error('Error building about info:', err);
return { error: err.message };
}
});