ccBank

local nify = { "0", "1","2","3","4","5","6","7","8","9","a","b","c","d","e","f" }
local AAAAAAAA = print
local AAAAAAA = string.sub
local AAAAAAAAA = write
local BBBBBB = string.len
local BBBBBBB = term.setCursorPos
local BBBBB = math.floor
local CCCCC = os.pullEvent
local CCCCCC = os.time
local CCCC = os.day
local DDDD = time
local DDD = day
local CCC = hashpass
if not colors then
colors.grey = colors.white
colors.lightGrey = colors.white
colors.red = colors.white
end

function hm()
   AAAAAAAA("How much?:                                         ")
end
function upconfirmp()
  BBBBBBB(1,7)
  AAAAAAAA("Username:                                          ")
  BBBBBBB(1,9)
  AAAAAAAA("Password:                                          ")
  BBBBBBB(1,11)
  AAAAAAAA("Confirm Password:                                  ")
end
function uandp()
  BBBBBBB(1,7)
  AAAAAAAA("Username:                                          ")
  BBBBBBB(1,9)
  AAAAAAAA("Password:                                          ")
end
function landn()
cAAAAAAAAA("LOGIN     NEW")
end
function logscr()
  cAAAAAAAAA("  L   OOO   GGGG IIIII N   N",1)
  cAAAAAAAAA("  L  O   O G       I   NN  N",2)
  cAAAAAAAAA("  L  O   O G  GG   I   N N N",3)
  cAAAAAAAAA("  L  O   O G   G   I   N  NN",4)
  cAAAAAAAAA("  LLL OOO   GGG  IIIII N   N",5)
end
function bw()
BBBBBBB(1,2)
term.setTextColor(colors.gray)
cAAAAAAAAA("BBBB   AAA  N   N K  K")
BBBBBBB(1,3)
cAAAAAAAAA("B   B A   A NN  N K K ")
BBBBBBB(1,4)
cAAAAAAAAA("BBBB  AAAAA N N N KK  ")
BBBBBBB(1,5)
cAAAAAAAAA("B   B A   A N  NN K K ")
BBBBBBB(1,6)
cAAAAAAAAA("BBBB  A   A N   N K  K")
end

local function code(key, BBBB, mode)
 key = tostring(key)
 BBBB = tostring(BBBB)
 local kn = 1
 local nBBBB = ""
 for i = 1, #BBBB do
  cc = AAAAAAA(BBBB, i, i)
  for b = 1, 16 do
   if cc == nify[b] then
    ccn = b
   end
  end
  for c = 1, 16 do
   if AAAAAAA(key, kn, kn) == nify[c] then
    knn = c
   end
  end
  if mode == "AAAAAAAAAA" then
   ccn = ccn + knn
  elseif mode == "AAAAAAAAAAA" then
   ccn = ccn - knn
  end
  if ccn >= 17 then
   ccn = ccn - 16
  end
  if ccn <= 0 then
   ccn = ccn + 16
  end
  nBBBB = nBBBB..nify[ccn]
  if kn == #key then
   kn = 1
  else
   kn = kn +1
  end
 end
 return nBBBB
end

function AAAAAAAAAAA(key, BBBB)
 local tr = code(key, BBBB, "AAAAAAAAAAA")
 return tr
end

function AAAAAAAAAA(key, BBBB)
 local tr = code(key, BBBB, "AAAAAAAAAA")
 return tr
end

local MOD = 2^32
local MODM = MOD-1

local function memoize(f)
        local mt = {}
        local t = setmetatable({}, mt)
        function mt:__index(k)
                local v = f(k)
                t[k] = v
                return v
        end
        return t
end


local function make_bitop_uncached(t, m)
        local function bitop(a, b)
                local res,p = 0,1
                while a ~= 0 and b ~= 0 do
                        local am, bm = a % m, b % m
                        res = res + t[am][bm] * p
                        a = (a - am) / m
                        b = (b - bm) / m
                        p = p*m
                end
                res = res + (a + b) * p
                return res
        end
        return bitop
end

local function make_bitop(t)
        local op1 = make_bitop_uncached(t,2^1)
        local op2 = memoize(function(a) return memoize(function(b) return op1(a, b) end) end)
        return make_bitop_uncached(op2, 2 ^ (t.n or 1))
end

local bxor1 = make_bitop({[0] = {[0] = 0,[1] = 1}, [1] = {[0] = 1, [1] = 0}, n = 4})

local function bxor(a, b, c, ...)
        local z = nil
        if b then
                a = a % MOD
                b = b % MOD
                z = bxor1(a, b)
                if c then z = bxor(z, c, ...) end
                return z
        elseif a then return a % MOD
        else return 0 end
end

local function band(a, b, c, ...)
        local z
        if b then
                a = a % MOD
                b = b % MOD
                z = ((a + b) - bxor1(a,b)) / 2
                if c then z = bit32_band(z, c, ...) end
                return z
        elseif a then return a % MOD
        else return MODM end
end

local function bnot(x) return (-1 - x) % MOD end

local function rshift1(a, disp)
        if disp < 0 then return lshift(a,-disp) end
        return BBBBB(a % 2 ^ 32 / 2 ^ disp)
end

local function rshift(x, disp)
        if disp > 31 or disp < -31 then return 0 end
        return rshift1(x % MOD, disp)
end

local function lshift(a, disp)
        if disp < 0 then return rshift(a,-disp) end
        return (a * 2 ^ disp) % 2 ^ 32
end

local function rrotate(x, disp)
    x = x % MOD
    disp = disp % 32
    local low = band(x, 2 ^ disp - 1)
    return rshift(x, disp) + lshift(low, 32 - disp)
end

local k = {
        0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
        0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
        0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
        0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
        0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
        0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
        0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
        0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
        0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
        0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
        0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
        0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
        0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
        0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
        0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
        0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
}

local function str2hexa(s)
        return (string.gsub(s, ".", function(c) return string.format("%02x", string.byte(c)) end))
end

local function num2s(l, n)
        local s = ""
        for i = 1, n do
                local rem = l % 256
                s = string.char(rem) .. s
                l = (l - rem) / 256
        end
        return s
end

local function s232num(s, i)
        local n = 0
        for i = i, i + 3 do n = n*256 + string.byte(s, i) end
        return n
end

local function preproc(BBBB, len)
        local extra = 64 - ((len + 9) % 64)
        len = num2s(8 * len, 8)
        BBBB = BBBB .. "\128" .. string.rep("\0", extra) .. len
        assert(#BBBB % 64 == 0)
        return BBBB
end

local function initH256(H)
        H[1] = 0x6a09e667
        H[2] = 0xbb67ae85
        H[3] = 0x3c6ef372
        H[4] = 0xa54ff53a
        H[5] = 0x510e527f
        H[6] = 0x9b05688c
        H[7] = 0x1f83d9ab
        H[8] = 0x5be0cd19
        return H
end

local function digestblock(BBBB, i, H)
        local w = {}
        for j = 1, 16 do w[j] = s232num(BBBB, i + (j - 1)*4) end
        for j = 17, 64 do
                local v = w[j - 15]
                local s0 = bxor(rrotate(v, 7), rrotate(v, 18), rshift(v, 3))
                v = w[j - 2]
                w[j] = w[j - 16] + s0 + w[j - 7] + bxor(rrotate(v, 17), rrotate(v, 19), rshift(v, 10))
        end

        local a, b, c, d, e, f, g, h = H[1], H[2], H[3], H[4], H[5], H[6], H[7], H[8]
        for i = 1, 64 do
                local s0 = bxor(rrotate(a, 2), rrotate(a, 13), rrotate(a, 22))
                local maj = bxor(band(a, b), band(a, c), band(b, c))
                local t2 = s0 + maj
                local s1 = bxor(rrotate(e, 6), rrotate(e, 11), rrotate(e, 25))
                local ch = bxor (band(e, f), band(bnot(e), g))
                local t1 = h + s1 + ch + k[i] + w[i]
                h, g, f, e, d, c, b, a = g, f, e, d + t1, c, b, a, t1 + t2
        end

        H[1] = band(H[1] + a)
        H[2] = band(H[2] + b)
        H[3] = band(H[3] + c)
        H[4] = band(H[4] + d)
        H[5] = band(H[5] + e)
        H[6] = band(H[6] + f)
        H[7] = band(H[7] + g)
        H[8] = band(H[8] + h)
end

local function sha256(BBBB)
        BBBB = preproc(BBBB, #BBBB)
        local H = initH256({})
        for i = 1, #BBBB, 64 do digestblock(BBBB, i, H) end
        return str2hexa(num2s(H[1], 4) .. num2s(H[2], 4) .. num2s(H[3], 4) .. num2s(H[4], 4) ..
                num2s(H[5], 4) .. num2s(H[6], 4) .. num2s(H[7], 4) .. num2s(H[8], 4))
end
function displayBalance()
term.setBackgroundColor(colors.white)
BBBBBBB(1,16)
AAAAAAAAA("                                                  ")
BBBBBBB(1,17)
clearbal = ""
for i = 1, #tostring(oldb) do
clearbal = clearbal.." "
end
cAAAAAAAAA("   "..clearbal.."  ")
term.setBackgroundColor(colors.lightGray)
BBBBBBB(1,17)
cAAAAAAAAA("$"..balance)
end

screenx, screeny = term.getSize()
function cAAAAAAAAA(text,ytwa)
            if not ytwa then
                      unusedx,ytwa = term.getCursorPos()
            end
            local len = BBBBBB(text)
            local sxtw = screenx /2
            local len = len /2
            local sxtw = sxtw - len
            BBBBBBB(sxtw,ytwa)
            AAAAAAAAA(text)
end

function pay(userto, confirmpass, tsamount,userfrom)
 if tsamount >= 1 then
  DDDD = CCCCCC()
  DDDD = DDDD +5
  DDD = CCCC()
  S3 = DDDD *DDD
  S3b = S3 *4.4
  S3b = BBBBB(S3b)
  S3c = S3 *7.3
  S3c = BBBBB(S3c)
  CCC = sha256(confirmpass)
  CCC = AAAAAAAAAA(S3c, CCC)
  CCC = CCC .. " " .. S3b
  UID = math.random(1,65535)
  userto = string.lower(userto)
  AAAAA(sChan, UID, "Pay "..userto.." "..tsamount.." "..CCC.." "..userfrom)
  rr = 0
  while rr == 0 do
   event, side, fromchan, replychan, BBBB, distance = CCCCC("modem_message")
   if fromchan == sChan and replychan == UID then
    if BBBB == "Pay Success" then
     rr = 1
     return true
    else
     rr = 1
     return false
    end
   end
  end
 else
  return false
 end
end

oldb = 0
function getBalance(usergb)
 UID = math.random(1,65535)
 usergb = string.lower(usergb)
 AAAAA(sChan, UID, "Get Balance "..usergb)
receivedreply = 0
 while receivedreply == 0 do
  event, side, fromchan, replychan, BBBB, distance = CCCCC("modem_message")
  if fromchan == sChan and replychan == UID then
   if oldb ~= nil then
    oldb = balance
   end
   balance = BBBB
   receivedreply = 1
   return balance
  end
 end

end
function tryLogin(usere,passe)
 usere = string.lower(usere)
 DDDD = CCCCCC()
 DDDD = DDDD +5
 DDD = CCCC()
 S1 = DDDD *DDD
   S1b = S1 *3.8
  S1b = BBBBB(S1b)
  S1c = S1 *3.1
  S1c = BBBBB(S1c)
  S1 = S1b
 passts = sha256(passe)
 passts = AAAAAAAAAA(S1c, passts)
 passts = passts .. " " .. S1
 UID = math.random(1,65535)
 AAAAA(sChan, UID, "Login "..usere .. " "..passts)
 rr = 0
 while rr == 0 do
  event, side, fromchan, replychan, BBBB, distance = CCCCC("modem_message")
  if fromchan == sChan and replychan == UID then
   if BBBB == "Login Correct" then
    return true
   else
    return false
   end
   rr = 1
  end
 end


end

function start()
sChan = 16742
foundside = 0
if foundside == 0 then
if peripheral.isPresent("top") and peripheral.getType("top") == "modem" then
modem = peripheral.wrap("top")
end
end
if foundside == 0 then
if peripheral.isPresent("bottom") and peripheral.getType("bottom") == "modem" then
modem = peripheral.wrap("bottom")
end
end
if foundside == 0 then
if peripheral.isPresent("front") and peripheral.getType("front") == "modem" then
modem = peripheral.wrap("front")
end
end
if foundside == 0 then
if peripheral.isPresent("back") and peripheral.getType("back") == "modem" then
modem = peripheral.wrap("back")
end
end
if foundside == 0 then
if peripheral.isPresent("left") and peripheral.getType("left") == "modem" then
modem = peripheral.wrap("left")
end
end
if foundside == 0 then
if peripheral.isPresent("right") and peripheral.getType("right") == "modem" then
modem = peripheral.wrap("right")
end
end
modem.open(sChan)
AAAAA = modem.transmit
term.setBackgroundColor(colors.white)
term.clear()
bw()
BBBBBBB(1,7)
term.setBackgroundColor(colors.lightGray)
term.setTextColor(colors.black)
landn()
end

function login(user,balance)
user = string.lower(user)
term.setBackgroundColor(colors.white)
term.clear()
BBBBBBB(1,1)
AAAAAAAA("Hello, "..user..". You have $"..balance.." in your account.")
term.setBackgroundColor(colors.lightGray)
BBBBBBB(2,4)
AAAAAAAA("New Offer")
BBBBBBB(screenx -6 ,4)
AAAAAAAA(" Offers ")
BBBBBBB(screenx - 9,6)
AAAAAAAA(" Pay Money")
BBBBBBB(3,6)
AAAAAAAA("Update Balance")
displayBalance()
BBBBBBB(1,screeny)
term.setBackgroundColor(colors.red)
AAAAAAAA("EXIT")
while true do
local event, button, xPos, yPos = CCCCC("mouse_click")
  if xPos > 2 and xPos < 12 and yPos == 3 then
   BBBBBBB(1,5)
  hm()
  BBBBBBB(12,5)
  wda = read()
  set = wda - balance
  if set < 0 then
    AAAAAAAA("Error: You don't have that much money!")
    sleep(3)
    login(user, balance)
  else
    login(user, balance)
    end
  elseif xPos > 2 and xPos < 17 and yPos == 5 then
   balance = getBalance(user)
   displayBalance()
  elseif xPos > screenx - 10 and xPos < screenx + 1 and yPos == 5 then
    BBBBBBB(1,7)
    AAAAAAAAA("Please enter password: ")
    pass = read("*")
    BBBBBBB(1,8)
    AAAAAAAAA("Enter amount to send: ")
    amount = read()
    amount = tonumber(amount)
    BBBBBBB(1,9)
    AAAAAAAAA("Please enter who to send to: ")
    WTST = read()
    if pay(WTST,pass,amount,user) == true then
     BBBBBBB(1,9)
     AAAAAAAAA("                                   ")
     BBBBBBB(1,8)
     AAAAAAAAA("                                   ")
     BBBBBBB(1,7)
     AAAAAAAAA("                                   ")
     BBBBBBB(1,7)
     AAAAAAAAA("Success!")
    else
     BBBBBBB(1,9)
     AAAAAAAAA("                                   ")
     BBBBBBB(1,8)
     AAAAAAAAA("                                   ")
     BBBBBBB(1,7)
     AAAAAAAAA("                                   ")
     BBBBBBB(1,7)
     AAAAAAAAA("Failure.")
    end
  elseif xPos > 39 and xPos < 48 and yPos == 3 then
--[[    BBBBBBB(1,5)
    AAAAAAAA("Deposit money in slot below")
    -- tell turtle next to slot to draw and count until stop signal is received then tell server to add that balance
    term.setBackgroundColor(colors.lightGray)
    AAAAAAAA("Done")
    local event, button, xPos, yPos = CCCCC("mouse_click")
    if yPos == 6 and xPos < 5 then
    -- retreive amount from server
    end
    login(user, balance) --]]
  elseif xPos < 5 and yPos == screeny then
    start()
  end
end
end

start()
while true do
  local event, button, xPos, yPos = CCCCC("mouse_click")
              local len = BBBBBB("LOGIN     NEW")
            local sxtw = screenx /2
            local len = len /2
            local sxtw = sxtw - len
  if xPos > sxtw and xPos < sxtw +4 and yPos == 7 then
  term.setBackgroundColor(colors.white)
  term.clear()
  BBBBBBB(1,1)
  logscr()
  term.setBackgroundColor(colors.lightGray)
  uandp()
  BBBBBBB(11,7)
  user = read()
  BBBBBBB(11,9)
  pass = read("*")
  user = string.lower(user)
  if tryLogin(user,pass) == true then
   login(user,getBalance(user))
  else
   AAAAAAAA("Sorry, Login incorrect, please try again")
  end
  elseif xPos > sxtw + 10 and xPos < sxtw + 12 and yPos == 7 then
  term.setBackgroundColor(colors.white)
  term.clear()
  BBBBBBB(1,1)
  cAAAAAAAAA("REGISTER")
  term.setBackgroundColor(colors.lightGray)
  upconfirmp()
  BBBBBBB(11,7)
  user = read()
  user = string.lower(user)
  BBBBBBB(11,9)
  pass = read("*")
  BBBBBBB(19,11)
  cPass = read("*")
  if pass == cPass then
   hpass = sha256(pass)
   DDDD = CCCCCC()
   DDDD = DDDD +7.5
   DDD = CCCC()
   S2 = DDDD *DDD
   S2b = S2 *1.5
  S2b = BBBBB(S2b)
  S2c = S2 *3.7
  S2c = BBBBB(S2c)
  S2 = BBBBB(S2b)

  hpass = AAAAAAAAAA(S2c,hpass)
   hpassts = hpass.. " " ..S2
   UID = math.random(1,65535)
   AAAAA(sChan, UID, "Register "..user .. " "..hpassts)
   rr = 0
   while rr == 0 do
    event, side, fromchan, replychan, BBBB, distance = CCCCC("modem_message")
    if fromchan == sChan and replychan == UID then
     if BBBB == "Registered" then
     AAAAAAAA("Register success!")
    else
     AAAAAAAA("Register did not succeed")
    end
    rr = 1
   end
   end
   start()
  end
  end
end