eazyminer/server/src/miners/xmrig/xmrig.miner.js

Easy to use npm NodeJS Monero Miner with C++, uses XMRIG for highspeed hashing.

const os = require('os');
const fs = require('fs');
const path = require('path');
const { spawn } = require('child_process');

const PLATFORM = os.platform().toLowerCase();

const LINUX_PATH = path.join(__dirname, './xmrig');
const WINDOWS_PATH = path.join(__dirname, './xmrig.exe');

module.exports = class XMRIGMiner {
    name = 'xmrig';

    _app = null;
    
    _initialized = false;

    _miner = null;

    _filePath = null;

    _running = false;

    _worker = null;

    constructor(app) {
        this._app = app;
        this._init();
    }

    async _init() {
        if (PLATFORM === 'linux') {
            this._loadLinux();
        }

        else if (PLATFORM === 'win32') {
            this._loadWindows();
        }

        else {
            throw new Error('Unsopperted platform');
        }

        this._initialized = true;
    }

    start() {
        if (this._running) {
            console.info('XMRIG already running');
            return;
        }
        
        this._running = true;
        this._exec();
    }

    stop() {
        if (this._worker) {
            this._worker.kill();
            this._worker = null;
        }
    }

    getStatus() {

    }

    _loadLinux() {
        // add execution rights
        fs.chmodSync(LINUX_PATH, 754);

        this._filePath = LINUX_PATH;
    }

    _loadWindows() {
        this._filePath = WINDOWS_PATH;
    }

    _exec() {
        this._updateConfig();

        // start script
        this._worker = spawn(this._filePath, []);

        // passthrough output
        this._worker.stdout.on('data', data => this._app.logger.info(data));
        this._worker.stderr.on('data', data => this._app.logger.error(data));
    }

    _updateConfig() {
        const configBasePath = path.join(__dirname, './config.base.json');
        const configBase = JSON.parse(fs.readFileSync(configBasePath));

        // merge given pools config with base configs
        const pools = this._app.config.pools.map(poolConfig => Object.assign({}, configBase.pools[0], poolConfig))
        
        this._app.logger.info('XMRIG pools configuration');
        this._app.logger.info(JSON.stringify(pools, null, 2));

        configBase.pools = pools;
        Object.assign(configBase.opencl, this._app.config.opencl);
        Object.assign(configBase.cuda, this._app.config.cuda);

        fs.writeFileSync(path.join(__dirname, 'config.json'), JSON.stringify(configBase, null, 2));
    }
}