changed http server to run on unix socket

src/kotatsu.cr

@@ -1,5 +1,6 @@
 # TODO: Write documentation for `Kotatsu`
 
+require "system/user"
 require "option_parser"
 require "http/server"
 require "json"
@@ -8,6 +9,7 @@ module Kotatsu
   VERSION = "0.1.0"
   CONFIG_DIR = Path.new(Path.home, ".config", "kotatsu")
   CONFIG_FILE = Path.new(CONFIG_DIR, "config.json")
+  UNIX_SOCKET_PATH = Path.new("/tmp", "kotatsu.sock")
 
   # -- METHODS --
 
@@ -195,12 +197,17 @@ module Kotatsu
 
   webcontent = makeContent(c_title, c_services)
 
+  #Checks if socket file exists and deletes it
+  if File.exists?(UNIX_SOCKET_PATH) == true
+    File.delete(UNIX_SOCKET_PATH)
+  end
+
   #Run http server
   webserv = HTTP::Server.new do |context|
     context.response.content_type = "text/html"
     context.response << webcontent
   end
-  webaddr = webserv.bind_tcp 8080
+  webaddr = webserv.bind_unix(Socket::UNIXAddress.new(UNIX_SOCKET_PATH.to_s))
   puts "Started kotatsu webserver on #{webaddr}"
   webserv.listen
-end
+end