PCAuth Installer

args = { ... }

if not args[1] then
  print("Usage:\n"
        .. "install <password>")
  return
end

function hash(str)
  local s = 0
  local p = ""

  for c in str:gmatch(".") do
      s = s + string.byte(c)
  end

  s = bit.bxor(65432895, s)

  while s > 0 do
      p = p .. string.char(s % 94 + 33)
      s = bit.brshift(s, 1)
  end

  return string.sub(p, 1, p:len() - 1)
end

local f = fs.open("/lock", "w")
f.write([[local password = "]] .. hash(args[1]) .. [["
os.pullEvent = os.pullEventRaw

function hash(str)
  local s = 0
  local p = ""

  for c in str:gmatch(".") do
      s = s + string.byte(c)
  end

  s = bit.bxor(65432895, s)

  while s > 0 do
      p = p .. string.char(s % 94 + 33)
      s = bit.brshift(s, 1)
  end

  return string.sub(p, 1, p:len() - 1)
end

while true do
 term.clear()
 term.setCursorPos(1,1)
 if term.isColor() then term.setTextColor(colors.blue) end
 term.write("Liquid Obsidian's Authenticator v")
 if term.isColor() then term.setTextColor(colors.purple) end
 term.write("2.0")
 if term.isColor() then term.setTextColor(colors.orange) end
 for i = 0, i < 2 do print("") end
 term.write("Enter Password: ")
 local input = read("*")
 if hash(input) == password then
  term.clear()
  term.setCursorPos(1,1)
  printWithFormat("&5Access Granted!\n")
  return
 else
  printWithFormat("&1Access Denied!")
  sleep(2)
 end
end]])
f.close()

f = fs.open("/startup", "w")
  f.write("shell.run('lock')")
f.close()

term.clear()
term.setCursorPos(1, 1)

local hiddenPassword = ""
for i = 1, args[1]:len() do
  hiddenPassword = hiddenPassword .. "*"
end

term.setTextColor(colors.green)
print("Auth installed with password " .. hiddenPassword .. "!")

sleep(1.5)

os.reboot()