Martin Raifer tyrasd

The Problem

Standard practices say no non-root process gets to talk to the Internet on a port less than 1024. How, then, could I get Node talking on port 80 on EC2? (I wanted it to go as fast as possible and use the smallest possible share of my teeny tiny little micro-instance's resources, so proxying through nginx or Apache seemed suboptimal.)

The temptingly easy but ultimately wrong solution:

Alter the port the script talks to from 8000 to 80:

}).listen(80);

In which I begrudglingly compare MapCSS and CartoCSS because people keep asking.

I hate this kind of writing - it's annoying to try to describe one bit of software versus another, and this can and will fall out of date every time that somebody makes a big change to their library. But people want it, or whatever, so here it is.

Since CartoCSS and Cascadenik are weird cousins, the big difference is between them and MapCSS.

Let's see, differences:

CartoCSS is designed for Mapnik. That is, it tries to expose every possible Mapnik style option and ability, and supports every Mapnik datasource.
MapCSS is designed for OSM. That is, it makes it easy to style based on OpenStreetMap data types, tags, and so on.

Booting Up A Development Server

Open a console. Terminal.app on Macs, your shell or whatever on PCs.

Python is easiest:

python -m SimpleHTTPServer 8000

Then go to http://localhost:8000/ in a web browser.

	echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
	. ~/.bashrc
	mkdir ~/local
	mkdir ~/node-latest-install
	cd ~/node-latest-install
	curl http://nodejs.org/dist/node-latest.tar.gz \| tar xz --strip-components=1
	./configure --prefix=~/local
	make install # ok, fine, this step probably takes more than 30 seconds...
	curl https://www.npmjs.org/install.sh \| sh

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2011 Mathieu 'p01' Henri - http://www.p01.org/releases/

	Everyone is permitted to copy and distribute verbatim or modified
	copies of this license document, and changing it is allowed as long
	as the name is changed.

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

	//Gruber wrote this regex for matching URLs, but it took a small amount of massage to use it in JavaScript. So here.
	//Sauce: http://daringfireball.net/2010/07/improved_regex_for_matching_urls

	var p = /\b((?:https?:\/\/\|www\d{0,3}[.]\|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+\|\(([^\s()<>]+\|(\([^\s()<>]+\)))\))+(?:\(([^\s()<>]+\|(\([^\s()<>]+\)))\)\|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/i;
	p.exec('party fun www.twitter.com yay') //winning.

	import SimpleHTTPServer
	class CORSHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
	def send_head(self):
	"""Common code for GET and HEAD commands.

	This sends the response code and MIME headers.

	Return value is either a file object (which has to be copied
	to the outputfile by the caller unless the command was HEAD,
	and must be closed by the caller under all circumstances), or

	from pylab import *

	def cface(ax, x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15,x16,x17,x18):
	# x1 = height of upper face
	# x2 = overlap of lower face
	# x3 = half of vertical size of face
	# x4 = width of upper face
	# x5 = width of lower face
	# x6 = length of nose
	# x7 = vertical position of mouth

	<!DOCTYPE html>
	<meta charset="utf-8">
	<title></title>
	<style>

	body {
	font: 10px sans-serif;
	background:#000;
	width:500px;
	margin:0 auto;

	#! /usr/bin/python2
	# vim: fileencoding=utf-8 encoding=utf-8 et sw=4

	import sys
	import os
	import xml.etree.cElementTree as ElementTree
	import string
	import math

	def contains(poly, pos):