node.js pipe for lighttpd logs to mongodb

log.js

#!/usr/local/bin/node
var fs = require('fs'),
    useragent = require('/www/utils/node_modules/useragent'),
    zoneinfo = require('/www/utils/node_modules/zoneinfo'),
    TZDate = zoneinfo.TZDate,
    countrycodes = require('/www/utils/node_modules/zoneinfo/lib/countrycodes');
    mongo = require('/www/utils/node_modules/mongoq'),
    db = mongo('mongodb:\/\/localhost/logs'),
    access = db.collection( 'access' );

process.stdin.resume();
process.stdin.setEncoding( 'utf8' );

process.stdin.on( 'data', function( chunk ) {
	chunk = chunk.trim().split('**#**');
	var ua = useragent.parser( chunk[8] );
	var req = chunk[4].split(' ');
	var t = new TZDate();
	t.setTimezone( 'America/Los_Angeles' );
	// todo: array of stupid requests
	if( req[1] != '/favicon.ico' ) {
		access.insert([{
			'r':((/\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b/.test(chunk[0]))?ip2long(chunk[0]):chunk[0]), // remote host
			'h':chunk[1], // host
			't':t._date,  // timestamp
			'm':((req[0]=='GET')?0:1), // method 0 = get, 1 = post
			'u':req[1],   // url
			's':parseInt(chunk[5]), // status
			'b':parseInt(chunk[6]), // size
			'f':((chunk[7]=='-')?0:chunk[7]), // referer
			'a':ua.pretty(),  // browser
			'o':ua.prettyOs()  // platform
		}]);
	}
});

process.stdin.on( 'end', function() {
	db.close();
});

function ip2long(a){var b=0,a=a.match(/^([1-9]\d*|0[0-7]*|0x[\da-f]+)(?:\.([1-9]\d*|0[0-7]*|0x[\da-f]+))?(?:\.([1-9]\d*|0[0-7]*|0x[\da-f]+))?(?:\.([1-9]\d*|0[0-7]*|0x[\da-f]+))?$/i);if(!a)return!1;a[0]=0;for(b=1;b<5;b+=1)a[0]+=!!(a[b]||"").length,a[b]=parseInt(a[b])||0;a.push(256,256,256,256);a[4+a[0]]*=Math.pow(256,4-a[0]);if(a[1]>=a[5]||a[2]>=a[6]||a[3]>=a[7]||a[4]>=a[8])return!1;return a[1]*(a[0]===1||16777216)+a[2]*(a[0]<=2||65536)+a[3]*(a[0]<=3||256)+a[4]*1};

// lighttpd config: accesslog.filename = "|/path/to/log.js"
// accesslog.format = "%h**#**%V**#**%u**#**%t**#**%r**#**%>s**#**%b**#**%{Referer}i**#**%{User-Agent}i"