ccFTP example Server

--[[
    Example Server Program for ccFTP API by Chickenbreadlp
]]

 -- Gets the arguments and checks if ccFTP is already present on the computer
local tArgs = { ... }
if fs.exists("/.ccftp/ccftp") then
 os.loadAPI("/.ccftp/ccftp")
else
 fs.makeDir("/.ccftp")
 shell.run("pastebin", "get", "8SxAwbQZ", "/.ccftp/ccftp")
 os.loadAPI("/.ccftp/ccftp")
end

 -- checking if the first argument
if string.lower(tArgs[1]) == "runserver" then
 print("Running Server with the following Hostname: "..tArgs[2])
 while true do

 -- runs the ccFTP Server in return mode and sets the Hostname as the secon argument and the FTP-Share as the third

  local a, b, c, d = ccftp.runServer(tArgs[2], true, tArgs[3])

 -- if the Server returns something, it'll prit it on the screen

  print("Sender:   "..b)
  if d == nil then d = c else
  print("Request:  "..c) end
  if a == true then
   print("Argument: "..d)
  else
   print("Error:    "..d)
  end
  print(" ----")
 end
elseif string.lower(tArgs[1]) == "closeserver" then

 -- shuts down any running ccFTP host and gives the user a feedback

 local a = ccftp.closeServer()
 if a == true then
  print("Unhosted running ccFTP-Host")
 else
  printError("There wasn't any running ccFTP-Hosts!")
 end
elseif string.lower(tArgs[1]) == "cuser" then

 -- checks again if a sufficent amount of arguments are given and then creates a user; Username: second argument; Password: third argument

 if #tArgs >= 3 then
  local res = ccftp.createUser(tArgs[2], tArgs[3])
  if res == true then
   print("User by the name "..tArgs[2].." created")
  elseif res == "UsrE" then
   printError("User already exists!")
  end
 else
  printError("Not enought Arguments!")
 end
elseif string.lower(tArgs[1]) == "chguser" then

 -- checks again if a sufficent amount of arguments are given and then changes username from second argument to third argument; Password: third argument

 if #tArgs >= 4 then
  local res = ccftp.renameUser(tArgs[2], tArgs[3], tArgs[4])
  if res == true then
   print("User renamed from "..tArgs[2].." to "..tArgs[3])
  elseif res == "nsUsr" then
   printError("User by the name "..tArgs[2].." does not exist!")
  elseif res == "nUsrE" then
   printError("A User by the name of "..tArgs[3].." does already exist!")
  elseif res == "pww" then
   printError("The entered password is wrong!")
  end
 else
  printError("Not enought Arguments!")
 end
elseif string.lower(tArgs[1]) == "passwd" then

 -- checks again if a sufficent amount of arguments are given and then changes password from third argument to fourth argument; Username: third argument

 if #tArgs >= 4 then
  local res = ccftp.changeUserPass(tArgs[2], tArgs[3], tArgs[4])
  if res == true then
   print("Password from User "..tArgs[2].." was changed")
  elseif res == "nsUsr" then
   printError("User by the name of "..tArgs[2].." does not exists!")
  elseif res == "pww" then
   printError("The entered password was wrong!")
  end
 else
  printError("Not enought Arguments!")
 end
elseif string.lower(tArgs[1]) == "rmuser" then

 -- checks again if a sufficent amount of arguments are given and then removes user with the name of the second argument; password is third argument

 if #tArgs >= 3 then
  local res = ccftp.removeUser(tArgs[2], tArgs[3])
  if res == true then
   print("User by the name of "..tArgs[2].." was removed!")
  elseif res == "nsUsr" then
   printError("There is no User by the name of "..tArgs[2])
  elseif res == "pww" then
   printError("Ther entered password is wrong!")
  end
 else
  printError("Not enought Arguments!")
 end
else

 -- gives the user the usage if insufficent arguments are given

 printError([[Usage:
 runserver 'hostname' (FTP-Share) -- Runs Server
 closeserver -- Shuts down any running ccFTP-Hosts
 cuser 'UserName' 'Password' -- creats new Account
 chguser 'oldUserName' 'newUserName' 'Password' -- renames a User
 passwd 'UserName' 'oldPassword' 'newPassword' -- changes a Password
 rmuser 'UserName' 'Password' -- removes a User]])
end