teslams/examples/config.js

Utilities for the Tesla Model S

'use strict';
/*
    Try and find EITHER username and password OR token from command line arguments.
    If not found, attempt to load it from ~/.teslams/config.json

    format of config.json:

    {
        "username": "teslamotors.com username/email",
        "password": "teslamotors.com password",
        "token": "authorization token",
        "visualize": {
            "baseUrl": "/teslavis",
            "webusers": [
                { "id": 1, "username": "dirk", "password": "secret" },
                { "id": 2, "username": "bob", "password": "different" }
            ]
        }
    }

    If there is any trouble loading or parsing that file,
    make the optimist args required as usual.

    This now also contains the web user/password database and path for visualize.js.
    Please note that here all the properties need to be in quotes as we are parsing
    this file as JSON - so don't just copy the array as it was in visualize.js before
    (where id, username and password were NOT quoted).
*/

exports.config = function (opt) {
    var config,
        configFile = process.env.TSLA_CONFIG_FILE ||
            process.env[(process.platform == 'win32') ? 'USERPROFILE' : 'HOME'] +
                "/.teslams/config.json",
        configSuccess = false;

    if (opt.argv['$0'].indexOf("visualize.js") != -1) {
        // we are calling from visualize.js, so let's get the user/password pairs for that
        try {
            config = JSON.parse(require('fs').readFileSync(configFile).toString());
            configSuccess = config.hasOwnProperty('visualize');
        } catch (err) {
            console.warn("Unable to load " + configFile + "; web server authentication turned off");
        }
        if (configSuccess) {
            if (opt.argv.debug) {
                console.log("found " + config.visualize.webusers.length + " user / password entries; enabling web authentication");
            }
        } else {
            console.log("didn't find 'visualize' property in config file, web authentication turned off");
        }
        return config;
    }
    // if no user name & password (or token) supplied on cmd line options, check environment variable
    if (!opt.argv.username && !opt.argv.password && !opt.argv.token) {
        config = {
            username: process.env.TSLA_USERNAME,
            password: process.env.TSLA_PASSWORD
        };
        if (config.username != undefined && config.password != undefined) {
            if (opt.argv.debug) {
                console.log('Teslamotors.com logon information loaded from environment variables $TSLA_USERNAME and $TSLA_PASSWORD');
            }
            return config;
        }
    }

    // if no user name & password (or token) supplied on cmd line options, look in config file
    if (!opt.argv.username && !opt.argv.password && !opt.argv.token) {
        try {
            config = JSON.parse(require('fs').readFileSync(configFile).toString());
            configSuccess = ( config.hasOwnProperty('username') && config.hasOwnProperty('password')) || config.hasOwnProperty('token');
        } catch (err) {
            console.warn("Unable to load " + configFile + "; username & password are required arguments");
        }
    }
    if (configSuccess) {
        if (opt.argv.debug) {
            console.log('Teslamotors.com logon information loaded from ' + configFile);
        }
    } else if (opt.argv.token) {
        config = { token: opt.argv.token };
    } else {
        // fall back to making them optimist required options
        opt.demand('u');
        opt.demand('p');
        config =
        {
            username: opt.argv.username,
            password: opt.argv.password,
            token: opt.argv.token
        };
    }

    return config;
};