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settings.js
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settings.js
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/**
* Settings object contains our settings related functions.
*/
var Settings = {
/**
* Decrypts data using aes-256-cbc algorithm
*
* @param data string to be decrypted
* @returns string containing decrypted data
*/
decrypt: function(data) {
const crypto = require('crypto');
const key = crypto.createHash('md5').update('devstia-personal-web').digest('hex');
let encryptedText = data.split(':');
let iv = encryptedText[1];
iv = Buffer.from(iv, 'base64');
encryptedText = encryptedText[0];
encryptedText = Buffer.from(encryptedText, 'base64');
// Creating Decipher
let decipher = crypto.createDecipheriv('aes-256-cbc', Buffer.from(key), iv);
// Updating encrypted text
let decrypted = decipher.update(encryptedText);
decrypted = Buffer.concat([decrypted, decipher.final()]);
// returns data after decryption
return decrypted.toString();
},
/**
* Encrypts data using aes-256-cbc algorithm
*
* @param data string to be encrypted
* @returns string containing encrypted data and iv
*/
encrypt: function(data) {
const crypto = require('crypto');
const key = crypto.createHash('md5').update('devstia-personal-web').digest('hex');
let iv = crypto.randomBytes(16);
let cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(key), iv);
let encrypted = cipher.update(data);
encrypted = Buffer.concat([encrypted, cipher.final()]);
// Returning iv and encrypted data
return encrypted.toString('base64') + ":" + iv.toString('base64');
},
/**
* getDefaultLocalIP - Gets the default IP address of the host.
*
* @returns {String} Default IP address of the host.
*/
getDefaultLocalIP: function() {
const os = require('os');
const interfaces = os.networkInterfaces();
for (const interfaceName of Object.keys(interfaces)) {
if (os.platform == 'win32' && interfaceName.startsWith('vEthernet')) {
continue; // Skip Hyper-V interfaces on Windows
}
const interfaceList = interfaces[interfaceName];
for (const interface of interfaceList) {
// Skip over non-IPv4 and internal addresses
if (interface.family === 'IPv4' && !interface.internal) {
return interface.address;
}
}
}
return '127.0.0.1';
},
/**
* read - Reads and returns settings from the settings file.
*
* @returns {Object} Application settings.
*/
read: function() {
// Default settings
const app = require('electron').app;
const path = require('path');
const { platform } = require('os');
const packageJson = require('./package.json');
let appData = path.join(app.getPath('userData'));
if (platform() === 'win32') { // Large files, avoid roaming profile on Windows, user local instead
appData = path.join(app.getPath('appData'), '..', 'Local', packageJson.name);
}
let pwSettings = {
version: packageJson.version,
webFolder: path.join(app.getPath('home'), 'Sites'),
pwPass: 'personalweb',
vmsMemory: 2,
vmsCPUs: 2,
sshPort: 8022,
cpPort: 8083,
fsMode: 'None',
debugMode: false,
lanIP: this.getDefaultLocalIP(),
appFolder: path.join(appData, 'app' ),
vmsFolder: path.join(appData, 'vms' ),
showTips: true
};
// Default to WebDAV on Windows and Samba on Linux/Darwin
if (platform() === 'win32') {
pwSettings.fsMode = 'WebDAV';
}else{
pwSettings.fsMode = 'Samba';
}
// Read settings file
const pwFile = path.join(pwSettings.appFolder, 'settings.json');
const fs = require('fs');
if (fs.existsSync(pwFile)) {
pwSettings = JSON.parse(fs.readFileSync(pwFile));
pwSettings.pwPass = this.decrypt(pwSettings.pwPass);
}else{
this.save(pwSettings); // Save the default settings
}
// Always reflect package version
pwSettings.version = packageJson.version;
return pwSettings;
},
/**
* save - Saves the settings to the settings file.
*
* @param {Object} pwSettings Application settings.
*/
save: function(pwSettings) {
let pwCopy = JSON.parse(JSON.stringify(pwSettings));
// Ensure the folder exists
const fs = require('fs');
if (!fs.existsSync(pwCopy.appFolder)) {
try {
fs.mkdirSync(pwCopy.appFolder, { recursive: true });
} catch (error) {
console.log("Unable to create application settings folder.");
console.log(error);
}
}
// Save the settings
pwCopy.pwPass = this.encrypt(pwCopy.pwPass);
const path = require('path');
const pwFilePath = path.join(pwCopy.appFolder, 'settings.json');
fs.writeFileSync(pwFilePath, JSON.stringify(pwCopy, null, 2));
}
};
module.exports = Settings;