server.coffee

   1 listen_port = 8333
   2 sys = require 'sys'
   3 fs = require 'fs'
   4 http = require 'http'
   5 url = require 'url'
   6 less = require 'less'
   7 coffee = require 'coffee-script'
   8
   9 css_handler = (args, out, request, url_parts) ->
  10         fs.readFile 'style.less', 'utf8', (err, data) ->
  11                 if err
  12                         return out.end 'Server failed to read style.less'
  13                 less.render data, (err, css) ->
  14                         if err
  15                                 return out.end "Server failed to make css: #{err}"
  16                         out.end css
  17
  18 js_handler = (args, out, request, url_parts) ->
  19         basename = url_parts.pathname.substr 1, (url_parts.pathname.length - 4)
  20         if basename is 'client'
  21                 filename = 'client.coffee'
  22         else if basename is 'common'
  23                 filename = 'common.coffee'
  24         else
  25                 error = "Unknown js basename: #{basename}"
  26                 console.log error
  27                 out.end(error)
  28                 return
  29
  30         fs.readFile filename, 'utf8', (err, data) ->
  31                 if err
  32                         return out.end "Server failed to read #{filename}"
  33                 out.end coffee.compile data
  34
  35 html_handler = (args, out, request, url_parts) ->
  36         fs.readFile 'index.html', 'utf8', (err, data) ->
  37                 if err
  38                         return out.end 'Server failed to read index.html'
  39                 out.end data
  40
  41 clean_pathname_regex = new RegExp('[^a-zA-Z/_.-]')
  42 clean_pathname_regex2 = new RegExp('/[.]')
  43 clean_pathname_regex3 = new RegExp('^[.-]')
  44 clean_pathname = (str) ->
  45         str = str.replace clean_pathname_regex, '_'
  46         str = str.replace clean_pathname_regex2, '/_'
  47         return str.replace clean_pathname_regex3, '_'
  48
  49 # serve javascript files from within /usr/share/javascript
  50 javascript_handler = (args, out, request, url_parts) ->
  51         filename = clean_pathname "/usr/share/#{url_parts.pathname}"
  52         fs.readFile filename, 'utf8', (err, data) ->
  53                 if err
  54                         out.writeHead 404
  55                         return out.end "Server failed to read #{filename}"
  56                 out.writeHead 200, 'Content-Type': 'text/javascript'
  57                 out.end data
  58
  59
  60 http_server = http.createServer (req, res) ->
  61         url_parts = url.parse req.url, true
  62         if url_parts.query is undefined
  63                 url_parts.query = {}
  64
  65         rel_path = url_parts.pathname.substr 1
  66
  67         if rel_path.substr(0, 11) is 'javascript/'
  68                 return javascript_handler url_parts.query, res, req, url_parts
  69         else if rel_path.substr(rel_path.length - 4) is '.css'
  70                 res.writeHead 200, 'Content-Type': 'text/css'
  71                 return css_handler url_parts.query, res, req, url_parts
  72         else if rel_path.substr rel_path.length - 3 is '.js'
  73                 res.writeHead 200, 'Content-Type': 'text/javascript'
  74                 return js_handler url_parts.query, res, req, url_parts
  75
  76         return html_handler url_parts.query, res, req, url_parts
  77
  78 http_server.listen listen_port, "127.0.0.1"
  79 console.log "Server running at http://127.0.0.1:#{listen_port}/"