main.js

var sys = require('sys'), torrent = require('./torrent');

String.prototype.toBinary = function(){
    var ret = '';
    for (var i = 0; i < this.length; i++) {
        ret += this.charCodeAt(i).toString(2);
    }
    return ret;
}

Object.size = function(obj){
    var size = 0, key;
    for (key in obj) {
        if (obj.hasOwnProperty(key)) 
            size++;
    }
    return size;
};

//here's antimatter15's implementation, i think they're better
//because at least it works with a fairly fundamental concept
//that binaryToString(stringToBinary(x)) == x;
//logically it does not work with unicodey things
function stringToBinary(bytes){
    var i, b = [];
    for (i = 0; i < bytes.length; i++) {
        b[i] = bytes.charCodeAt(i) & 0xff;
    }
    return b.map(function(v){
        return v.toString(2)
    }).join('')
    /*.split('').map(function(v){
     return +v;
     });*/
};

function binaryToString(bytes){ //as a string
    if (bytes % 7) 
        throw "poop";
    for (var ret = '', l = bytes.length, i = 0; i < l; i += 7) {
        ret += String.fromCharCode(parseInt(bytes.substr(i, 7), 2))
    }
    return ret;
}

String.prototype.fromBinary = function(){
    var ret = '';
    for (var i = 0; i < this.length; i++) {
        ret += String.fromCharCode(parseInt(this.charAt(i)));
    }
    return ret;
}

function parseArgs(args){
    var result = {
        destDir: '.'
    }, torrentFiles = [], i, argLen, arg;
    for (i = 0, argLen = args.length; i < argLen; i += 1) {
        arg = args[i];
        if (arg.length == 0) {
            throw "Empty argument";
        }
        if (arg.charAt(0) == '-') {
            if (arg === '--destDir') {
                result.destDir = args[i + 1];
                i += 1;
            }
            else {
                throw "Unknown flag " + arg;
            }
        }
        else {
            torrentFiles.push(arg);
        }
    }
    result.files = torrentFiles;
    return result;
}

function main(){
    var args = parseArgs(process.argv.slice(2)), torrentFiles = args.files, i, iLen, file, aTorrent;
    if (torrentFiles.length == 0) {
        throw "No torrent files specified.";
    }
    else {
        for (i = 0, iLen = torrentFiles.length; i < iLen; i += 1) {
            file = torrentFiles[i];
            aTorrent = torrent.create(file, args.destDir);
            aTorrent.start();
        }
    }
}

main();