minimal in-memory nodejs ldp container implementation (incomplete)

ldpcontainer.coffee

# npm install connect

connect = require 'connect'

accept = [
	'text/turtle',
	'application/rdf+xml',
	'application/rdf+json'
]

accPostHeader = accept.join ', '
accMap = {}
for a in accept
	accMap[a] = true

members = {}
cnt     = 0

app = connect()
app.use connect.logger 'dev'
app.use connect.responseTime()
app.use (req, res, next) ->
	if req.url is '/'
		res.setHeader 'Accept-Post', accPostHeader
		if req.method is 'POST'
			type = req.headers['content-type']
			if accMap[type] isnt true
				res.statusCode = 415
				res.end()
				return
			cnt++
			url = '/r' + cnt
			res.statusCode = 201
			res.setHeader 'Location', url
			req.on 'data', (data) ->
				if members[url] is undefined
					members[url] =
						data:     new Buffer 0
						created:  new Date()
						modified: new Date()
				members[url].data = Buffer.concat [members[url].data, data]
			console.log url
			res.end()
		else if req.method is 'GET'
			res.setHeader 'Content-Type', 'text/turtle'
			body = '@prefix ldp: <http://www.w3.org/ns/ldp#>.\n' +
			       '@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.\n' +
			       '<> a ldp:Container'
			urls = Object.keys members
			if urls.length > 0
				body += ';\n'
				first = urls.shift()
				urls  = urls.map (url) -> '               <' + url + '>'
				mtrip = urls.join(',\n')
				if urls.length > 0
					mtrip = ',\n' + mtrip
				body += '   rdfs:member <' + first + '>' + mtrip + '.\n'
			else
				body += '.\n'
			res.end body
		else
			do next
		return
	else if req.method is 'GET'
		url = req.url
		member = members[url]
		if member?
			res.end member.data
			return
	else if req.method is 'DELETE'
		url = req.url
		member = members[url]
		if member?
			delete members[url]
			res.end()
			return
	do next
app.listen 3000