关于单机游戏的机器码、兑换码 - Project1

function machineIdSync(){
//from https://github.com/automation-stack/node-machine-id/blob/master/index.js
let execSync = require("child_process").execSync;
let exec = require("child_process").exec;
let createHash = require("crypto").createHash;
let win32RegBinPath = {
native: '%windir%\\System32',
mixed: '%windir%\\sysnative\\cmd.exe /c %windir%\\System32'
};
let guid = {
darwin: 'ioreg -rd1 -c IOPlatformExpertDevice',
win32: `${win32RegBinPath[isWindowsProcessMixedOrNativeArchitecture()]}\\REG.exe ` +
'QUERY HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography ' +
'/v MachineGuid',
linux: '( cat /var/lib/dbus/machine-id /etc/machine-id 2> /dev/null || hostname ) | head -n 1 || :',
freebsd: 'kenv -q smbios.system.uuid || sysctl -n kern.hostuuid'
}
function isWindowsProcessMixedOrNativeArchitecture() {
// detect if the node binary is the same arch as the Windows OS.
// or if this is 32 bit node on 64 bit windows.
if(process.platform !== 'win32') {
return '';
}
if( process.arch === 'ia32' && process.env.hasOwnProperty('PROCESSOR_ARCHITEW6432') ) {
return 'mixed';
}
return 'native';
}
function hash(guid) {
return createHash('sha256').update(guid).digest('hex');
}
function expose(result) {
switch (process.platform) {
case 'darwin':
return result
.split('IOPlatformUUID')[1]
.split('\n')[0].replace(/\=|\s+|\"/ig, '')
.toLowerCase();
case 'win32':
return result
.toString()
.split('REG_SZ')[1]
.replace(/\r+|\n+|\s+/ig, '')
.toLowerCase();
case 'linux':
return result
.toString()
.replace(/\r+|\n+|\s+/ig, '')
.toLowerCase();
case 'freebsd':
return result
.toString()
.replace(/\r+|\n+|\s+/ig, '')
.toLowerCase();
default:
throw new Error(`Unsupported platform: ${process.platform}`);
}
}
function machineIdSync(original) {
let id = expose(execSync(guid[process.platform]).toString());
return original ? id : hash(id);
}
function machineId(original) {
return new Promise((resolve, reject) => {
return exec(guid[process.platform], {}, (err, stdout, stderr) => {
if (err) {
return reject(
new Error(`Error while obtaining machine id: ${err.stack}`)
);
}
let id = expose(stdout.toString());
return resolve(original ? id : hash(id));
});
});
}
return machineIdSync();
}
function calcKey(machineId){
let hash = machineId;
//do some?
let hash8 = hash.match(/.{8}/g);
let hashi = [];
let key = undefined;
for(let i = 0; i < hash8.length; i++){
hashi[i] = parseInt(hash8[i],16);
if(key === undefined){
key = hashi[i];
}
key = Math.abs(key - hashi[i]);
}
key = Math.floor(Math.abs(key / 8));
return key;
}

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