login

os.pullEvent = os.pullEventRaw
if fs.exists("login/img") then
img = paintutils.loadImage("login/img")
paintutils.drawImage(img, 1, 1)
sleep(4)
os.loadAPI("login/loginsha")
os.loadAPI("login/logsalt")
while true do
term.clear()
term.setCursorPos(1,1)
print("Secure login. Please enter your username and password")
write("Username: ")
local uName = read()
write("Password: ")
local uPwR = read("*")
if fs.exists("login/pw.lgn") == true then
  hRPW = fs.open("login/pw.lgn", "r")
  local test = hRPW.readLine()
  local test2 = hRPW.readLine()
  local test3 = hRPW.readLine()
  local uPwRS = uPwR..test2
  local uPwRSH = loginsha.sha256(uPwRS)
  if test == uName then
    if test3 == uPwRSH then
      print("Correct password. Welcome to your PC.")
      sleep(3)
      term.setBackgroundColor( colors.black )
      term.clear()
      term.setCursorPos(1,1)
      print("SecureLogin 1.4")
      break
    else
      print("Username or password incorrect. Please try again.")
      sleep(3)
      end
  else
    print("Username or password incorrect. Please try again.")
    sleep(3)
    end
else
  print("You do not have a password file. Creating one.")
  fs.delete("login/pw.lgn")
  hMkPw = fs.open("login/pw.lgn", "w")
  write("Enter new username: ")
  NUname = read()
  write("Enter new password: ")
  NUpw = read("*")
  sl1 = logsalt.rand(256)
  NUpwF = NUpw..sl1
  NUpwFS = loginsha.sha256(NUpwF)
  hMkPw.writeLine(NUname)
  hMkPw.writeLine(sl1)
  hMkPw.writeLine(NUpwFS)
  hMkPw.close()
  print("Finished creation.")
  sleep(5)
  os.reboot()
  end
hRPW.close()
end
else
print("Thanks for downloading SecureLogin 1.4. Downloading required graphics etc.")
shell.run("mkdir login")
shell.run("wget https://pastebin.com/raw/PJjAybwf login/img")
shell.run("wget https://pastebin.com/raw/SuxqjP3s login/limg1")
sleep(1)
imgc = paintutils.loadImage("login/limg1")
paintutils.drawImage(imgc, 1, 1)
shell.run("wget https://pastebin.com/raw/WLvxP5Vn login/loginsha")
sleep(1)
shell.run("wget https://pastebin.com/raw/9YW1XWXN login/logsalt")
sleep(2)
term.clear()
term.setCursorPos(1, 1)
print("Initial download complete.")
fs.copy(shell.getRunningProgram(), "login/login")
print("Set login as startup program? (y/n)")
write("Choice: ")
if read() == "y" then
fs.delete("startup")
fs.copy("login/login", "startup")
print("Set as start up file.")
elseif read() == "Y" then
fs.delete("startup")
fs.copy("login/login", "startup")
print("Set as startup file.")
end
os.reboot()
end