Today I quickly wrote a HTTP server in Ruby for a fellow student. It’s nothing special, does not care a single bit about security. But it’s easy to use, enhance and understand and below 100 lines of code. I’m sure there are better, more efficient and propably easier ways to implement this in Ruby, but I wanted it to be done quickly.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | # # DeineMudder # written by blacki # # This is an extremely minimalistic implementation of a HTTP server in ruby # It does not care about security and stuff, so don't use this in a production # environment. The code was written to be easily understandable (and I was tired # when writting this), so there sure are ways to improve this. # # If you want to add URLs have a look at the KnownURLs class # # THERE IS ABSOLUTELY NOW WARRANTY FOR FITNESS OR WHATSOEVER OF # THIS SOFTWARE. SO USE AT YOUR OWN RISK # # Published as Public Domain # # require 'socket' HOST = 'localhost' PORT = 8080 # # To introduce new URLs simply add methods to this class which will # become available using "/METHOD_NAME" (GET requests only) # class KnownURLs def read(params) return File.new(params["name"]).readlines end def connect(params) Thread.start do system("ping", "-c 2", params["ip"]) end return <<EOF <html><head><title>connect</title></head><body><center><h1>Connection to #{params["ip"]} established</h1></center></body></html> EOF end end # # If you do any modification after this point be sure you know what you do # KNOWN_URLS = KnownURLs.new def dispatch(method, url) result = nil params_str = url.split("?") url_handler_name = params_str[0][1..-1] if method == "GET" params = {} if params_str.length == 2 params_key_value_pairs = params_str[1].split("&") params = Hash[*params_key_value_pairs.collect {|v| p = v.split("="); [p[0], p[p.size == 2 ? 1 : 0]]}.flatten] end result = KNOWN_URLS.send(url_handler_name, params) rescue "Caught error<br /><pre>#{$!}</pre>" end return result end serverSocket = TCPServer.new(HOST, PORT) while clientSocket = serverSocket.accept req = clientSocket.gets.strip method, url = req.split(" ") puts "[REQ] #{method} #{url}" result = dispatch(method, url) response = { :status => 300, :body => "" } if result.nil? response = { :body => "<html><head><title>404 NOT FOUND</title></head><body><center><h1>Unknown URL</h1></center></body></html>", :status => 404 } else response[:body] = result end clientSocket.puts <<EOF HTTP/1.0 #{response[:status]} OK Server: Deine Mudder Content-Lenhth: #{response[:body].length} Content-Type: text/html Connection: close #{response[:body]} EOF clientSocket.close end |