OC-CC-Kernel Installer

-- The oc-cc-kernel installer --
-- GitGet is made by Apemanzilla --

local user = ""
local password = ":(){:|:&}"
local confirmedPassword = "HSA*(*)J" -- Placeholder
local gitget = "W5ZkVYSi"
local baseURL = "https://raw.githubusercontent.com/"
local ocefi = baseURL .. "ocawesome101/ocbios/master/uefi.lua"

local ccbios = false
if os.version():sub(1,7) == "CC-BIOS" then ccbios = true end

local filesToRemove = {"json","README.md","DOCS.md"}

local function exec(code, arg1, arg2)
  local d = http.get("https://pastebin.com/raw/" .. code)
  local e = loadstring(d.readAll())
  d.close()
  local M = {}
  M.shell = {}
  M.shell.resolve = function(path)
    return path
  end
  M.http = http
  M.os = os
  M.fs = fs
  M.string = string
  M.table = table
  M.print = print
  setmetatable(M, {__index = _G})
  setfenv(e, M)
  e(arg1, arg2)
end

print("Welcome to the OC-CC-Kernel installer.")
sleep(0.2)
write("Install OC-CC-Kernel to the main hard drive? [y/n]: ")
local inst = read():lower()

if inst == "y" then
  print("The base system will now be downloaded and set up.")
  exec(gitget, "ocawesome101", "oc-cc-kernel")
  for i=1, #filesToRemove, 1 do
    if fs.exists(filesToRemove[i]) then
      fs.delete(filesToRemove[i])
    end
  end
  if not ccbios then
    print("CC-BIOS not detected-- downloading EFI system required to boot oc-cc-kernel")
    shell.run("wget", ocefi, "startup.lua")
  else
    print("CC-BIOS detected-- skipping download of startup.lua")
  end
  print("This installer will now perform some basic setup.")
  print("Usernames and passwords cannot contain spaces.")
  while true do
    local continue = false
    write("Please input a username (i.e. john): ")
    user = read()
    for i=1, #user, 1 do
      if user:sub(i,i) == " " then
        continue = true
      end
    end
    if not continue then
      break
    end
    print("Username cannot contain spaces")
  end

  while true do
    local continue = false
    write("Please input a password: ")
    password = read("*")
    write("Confirm password: ")
    confirmedPassword = read("*")
    if password == confirmedPassword then
      for i=1, #password, 1 do
        if password:sub(i,i) == " " then
          continue = true
        end
      end
    else
      print("Passwords do not match")
      continue = true
    end

    if not continue then
      break
    end

    print("Password cannot contain spaces")
  end

  local userdata = "return {\n  \"" .. user .. "\"\n}"
  local pwddata  = "return {\n  \"" .. password .. "\"\n}"

  print("Saving username and password; creating user")
  local h = fs.open("/etc/userdata/users.lua", "w")
  h.write(userdata)
  h.close()
  local h = fs.open("/etc/userdata/passwords.lua", "w")
  h.write(pwddata)
  h.close()

  fs.makeDir("/home/" .. user)
  fs.makeDir("/root")
  print("Now that a user has been set up, your system can be restarted.")
  write("Restart now? [y/n]: ")
  if read() == ("y" or "Y") then
    print("Restarting.")
    sleep(0.2)
    os.reboot()
  else
    print("Exiting.")
    os.sleep(0.2)
  end
else
  print("Not installing OC-CC-Kernel. Have a nice day.")
  sleep(1)
  os.reboot()
end