bitcoin-nanopayment/lib/setup-wizard.js

Send probabilistic Bitcoin nanopayments

/**
 * This file has interactive CLI functions to help developers set up the config files for the tests.
 */
'use strict';

// Internal imports
var fs = require('fs');
var bitcoinNanopayment = require("bitcoin-nanopayment");

// External imports
var prompt = require('prompt');
var sprintf = require("sprintf-js").sprintf;


prompt.start();

// Return a boolean, and log whether the config file exists or not.
var configFileExists = function(filePath) {
    try {
        fs.statSync(filePath);
    } catch (e) {
        if (e.errno != -2) {
            throw e;
        }
        console.log(sprintf("Config %s not found.\n", filePath));
        return false;
    }
    console.log(sprintf("Config %s found.\n", filePath));
    return true
};

/*
 * Run the wizard, checking if the file exists, and, if not, prompting the user to fill it out.
 */
var wizard = function(configFilePath, intro, promptFor) {
    if (configFileExists(configFilePath)) {
        return;
    }

    console.log(intro + "\n");

    prompt.get(promptFor, function (err, result) {
        var resultPretty = JSON.stringify(result, null, 4) + "\n";
        fs.writeFileSync(configFilePath, resultPretty);
        console.log(sprintf('\nWrote config to %s : %s', configFilePath, resultPretty));
    });
};

exports.wizardBitcoinConfig = function() {
    var configFilePath = "config/bitcoind.json";

    var intro = 'This is the configuration for using bitcoind RPC as a backend. For information on how to launch ' +
        'Bitcoin with the RPC server running, see here: https://en.bitcoin.it/wiki/Running_Bitcoin\n\nFor these ' +
        'tests to run, the configuration in your bitcoin.conf, or on the Bitcoin command line, must match the ' +
        'settings here.';

    var promptFor = [
        {
            name: 'host',
            description: 'Please enter the host on which bitcoind RPC is running',
            default: 'localhost'
        },
        {
            name: 'port',
            description: 'Please enter the port on which bitcoind RPC is running',
            default: 18332
        },
        {
            name: 'user',
            description: 'Please enter the username for bitcoind RPC'
        },
        {
            name: 'pass',
            description: 'Please enter the password for bitcoind RPC'
        }
    ];

    wizard(configFilePath, intro, promptFor);
};

exports.wizardTestAccountsConfig = function() {
    var configFilePath = "config/test-accounts.json";

    var intro = sprintf('To run the tests, you must create two test accounts, one to send funds and the other to ' +
        'receive them. Both accounts must have %i Satoshis or more.', bitcoinNanopayment.AMOUNT);

    var promptFor = [
        {
            name: 'sourceAddress',
            description: 'Please enter the Base58 source address'
        },
        {
            name: 'sourcePrivateKey',
            description: 'Please enter the Base58 source private key'
        },
        {
            name: 'destinationAddress',
            description: 'Please enter the Base58 destination address'
        },
        {
            name: 'destinationPrivateKey',
            description: 'Please enter the Base58 destination private key'
        }
    ];

    wizard(configFilePath, intro, promptFor);
};


exports.wizardBitcoinConfig();
exports.wizardTestAccountsConfig();