mirror of https://github.com/keeweb/keeweb.git
78 lines
2.8 KiB
JavaScript
78 lines
2.8 KiB
JavaScript
// KeeWeb launcher script
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// This script is distributed with the app and is its entry point
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// It checks whether the app is available in userData folder and if its version is higher than local, launches it
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// This script is the only part which will be updated only with the app itself, auto-update will not change it
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// (C) Antelle 2017, MIT license https://github.com/keeweb/keeweb
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const app = require('electron').app;
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const path = require('path');
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const fs = require('fs');
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const userDataDir = app.getPath('userData');
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const userDataAppArchivePath = path.join(userDataDir, 'app.asar');
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let entryPointDir = __dirname;
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if (fs.existsSync(userDataAppArchivePath)) {
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let versionLocal = require('./package.json').version;
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try {
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let versionUserData = require(path.join(userDataAppArchivePath, 'package.json')).version;
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versionLocal = versionLocal.split('.');
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versionUserData = versionUserData.split('.');
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for (let i = 0; i < versionLocal.length; i++) {
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if (+versionUserData[i] > +versionLocal[i]) {
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entryPointDir = userDataAppArchivePath;
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try {
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validateSignature(userDataDir);
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} catch (e) {
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exitWithError('Error validating signatures: ' + e);
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}
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break;
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}
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if (+versionUserData[i] < +versionLocal[i]) {
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break;
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}
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}
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} catch (e) {
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console.error('Error reading user file version', e); // eslint-disable-line no-console
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}
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}
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function validateSignature(appPath) {
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const fs = require('original-fs');
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const signatures = JSON.parse(fs.readFileSync(path.join(appPath, 'signatures.json')));
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const selfSignature = signatures.kwResSelf;
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if (!selfSignature || !signatures['app.asar']) {
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exitWithError('Invalid signature file');
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}
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delete signatures.kwResSelf;
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const data = JSON.stringify(signatures);
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validateDataSignature(Buffer.from(data), selfSignature, 'self');
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Object.keys(signatures).forEach(signedFilePath => {
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const resourcePath = path.join(appPath, signedFilePath);
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const fileData = fs.readFileSync(resourcePath);
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validateDataSignature(fileData, signatures[signedFilePath], signedFilePath);
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});
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}
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function validateDataSignature(data, signature, name) {
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const crypto = require('crypto');
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const publicKey = 'PUBLIC_KEY_CONTENT';
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const verify = crypto.createVerify('RSA-SHA256');
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verify.write(data);
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verify.end();
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signature = Buffer.from(signature, 'base64');
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if (!verify.verify(publicKey, signature)) {
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exitWithError('Resource corrupted: ' + name);
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}
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}
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function exitWithError(err) {
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console.error(err); // eslint-disable-line no-console
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process.exit(1);
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}
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const entryPointFile = path.join(entryPointDir, 'app.js');
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require(entryPointFile);
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