btnexus-node/lib/connectHash.js

Baseline libary for btNexus development.

/**
 *  Ophion Cloud client node
 *
 *  @author Marc Fiedler
 *  @copyright 2020 Blackout Technologies, all rights reserved, all rights reserved
 */

// Use Strict mode ECMA Script 5+
"use_strict";

// sys imports
const fs = require('fs');

// local imports
const findRoot = require('find-root');

module.exports = class ConnectHash{
    constructor(){
        this.valid = false;
        const root = findRoot(process.cwd());
        
        var connectHash = process.env.CONNECT_HASH;
        if( connectHash == undefined ){
            try{
                // file found, parse it's contents
                connectHash = fs.readFileSync(root+"/.btnexusrc", "utf-8");
            }catch(e){
                // no file, no worries..
            }
        }

        if( connectHash != undefined ){
            var buffer = Buffer.from(connectHash, 'base64');
            try{
                this.data = JSON.parse(buffer.toString('ascii'));
                Object.assign(this, this.data);
                this.valid = true;
            }catch(e){
                this.error = "Invalid connect hash! Connect impossible";
            }
        }else{
            this.error = "Please provide a valid connect hash from a btNesus instance";
        }
    }

    isValid(){
        return this.valid;
    }
}