--[[
Author: TheOriginalBIT
Version: 4.1
Created: 17 Dec 2012
Last Update: 22 Feb 2013

License:

COPYRIGHT NOTICE
Copyright © 2012-2013 Joshua Asbury a.k.a TheOriginalBIT [theoriginalbit@gmail.com]

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
copies of the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-Visible credit is given to the original author.
-The software is distributed in a non-profit way.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
]]--

-- changing anything beyond this point could break the program

--[[ EXTERNAL LIBRARY BY GRAVITYSCORE ]]--
--  
--  Adaptation of the Secure Hashing Algorithm (SHA-244/256)
--  Found Here: http://lua-users.org/wiki/SecureHashAlgorithm
--  
--  Using an adapted version of the bit library
--  Found Here: https://bitbucket.org/Boolsheet/bslf/src/1ee664885805/bit.lua
--  
--  Adapted into a single function by GravityScore
--  

local hash = function(msg) local function band(int1, int2, int3, ...) local ret = ((int1%0x00000002>=0x00000001 and int2%0x00000002>=0x00000001 and 0x00000001) or 0) + ((int1%0x00000004>=0x00000002 and int2%0x00000004>=0x00000002 and 0x00000002) or 0) + ((int1%0x00000008>=0x00000004 and int2%0x00000008>=0x00000004 and 0x00000004) or 0) + ((int1%0x00000010>=0x00000008 and int2%0x00000010>=0x00000008 and 0x00000008) or 0) + ((int1%0x00000020>=0x00000010 and int2%0x00000020>=0x00000010 and 0x00000010) or 0) + ((int1%0x00000040>=0x00000020 and int2%0x00000040>=0x00000020 and 0x00000020) or 0) + ((int1%0x00000080>=0x00000040 and int2%0x00000080>=0x00000040 and 0x00000040) or 0) + ((int1%0x00000100>=0x00000080 and int2%0x00000100>=0x00000080 and 0x00000080) or 0) + ((int1%0x00000200>=0x00000100 and int2%0x00000200>=0x00000100 and 0x00000100) or 0) + ((int1%0x00000400>=0x00000200 and int2%0x00000400>=0x00000200 and 0x00000200) or 0) + ((int1%0x00000800>=0x00000400 and int2%0x00000800>=0x00000400 and 0x00000400) or 0) + ((int1%0x00001000>=0x00000800 and int2%0x00001000>=0x00000800 and 0x00000800) or 0) + ((int1%0x00002000>=0x00001000 and int2%0x00002000>=0x00001000 and 0x00001000) or 0) + ((int1%0x00004000>=0x00002000 and int2%0x00004000>=0x00002000 and 0x00002000) or 0) + ((int1%0x00008000>=0x00004000 and int2%0x00008000>=0x00004000 and 0x00004000) or 0) + ((int1%0x00010000>=0x00008000 and int2%0x00010000>=0x00008000 and 0x00008000) or 0) + ((int1%0x00020000>=0x00010000 and int2%0x00020000>=0x00010000 and 0x00010000) or 0) + ((int1%0x00040000>=0x00020000 and int2%0x00040000>=0x00020000 and 0x00020000) or 0) + ((int1%0x00080000>=0x00040000 and int2%0x00080000>=0x00040000 and 0x00040000) or 0) + ((int1%0x00100000>=0x00080000 and int2%0x00100000>=0x00080000 and 0x00080000) or 0) + ((int1%0x00200000>=0x00100000 and int2%0x00200000>=0x00100000 and 0x00100000) or 0) + ((int1%0x00400000>=0x00200000 and int2%0x00400000>=0x00200000 and 0x00200000) or 0) + ((int1%0x00800000>=0x00400000 and int2%0x00800000>=0x00400000 and 0x00400000) or 0) + ((int1%0x01000000>=0x00800000 and int2%0x01000000>=0x00800000 and 0x00800000) or 0) + ((int1%0x02000000>=0x01000000 and int2%0x02000000>=0x01000000 and 0x01000000) or 0) + ((int1%0x04000000>=0x02000000 and int2%0x04000000>=0x02000000 and 0x02000000) or 0) + ((int1%0x08000000>=0x04000000 and int2%0x08000000>=0x04000000 and 0x04000000) or 0) + ((int1%0x10000000>=0x08000000 and int2%0x10000000>=0x08000000 and 0x08000000) or 0) + ((int1%0x20000000>=0x10000000 and int2%0x20000000>=0x10000000 and 0x10000000) or 0) + ((int1%0x40000000>=0x20000000 and int2%0x40000000>=0x20000000 and 0x20000000) or 0) + ((int1%0x80000000>=0x40000000 and int2%0x80000000>=0x40000000 and 0x40000000) or 0) + ((int1>=0x80000000 and int2>=0x80000000 and 0x80000000) or 0) return (int3 and band(ret, int3, ...)) or ret end local function bxor(int1, int2, int3, ...) local ret = ((int1%0x00000002>=0x00000001 ~= (int2%0x00000002>=0x00000001) and 0x00000001) or 0) + ((int1%0x00000004>=0x00000002 ~= (int2%0x00000004>=0x00000002) and 0x00000002) or 0) + ((int1%0x00000008>=0x00000004 ~= (int2%0x00000008>=0x00000004) and 0x00000004) or 0) + ((int1%0x00000010>=0x00000008 ~= (int2%0x00000010>=0x00000008) and 0x00000008) or 0) + ((int1%0x00000020>=0x00000010 ~= (int2%0x00000020>=0x00000010) and 0x00000010) or 0) + ((int1%0x00000040>=0x00000020 ~= (int2%0x00000040>=0x00000020) and 0x00000020) or 0) + ((int1%0x00000080>=0x00000040 ~= (int2%0x00000080>=0x00000040) and 0x00000040) or 0) + ((int1%0x00000100>=0x00000080 ~= (int2%0x00000100>=0x00000080) and 0x00000080) or 0) + ((int1%0x00000200>=0x00000100 ~= (int2%0x00000200>=0x00000100) and 0x00000100) or 0) + ((int1%0x00000400>=0x00000200 ~= (int2%0x00000400>=0x00000200) and 0x00000200) or 0) + ((int1%0x00000800>=0x00000400 ~= (int2%0x00000800>=0x00000400) and 0x00000400) or 0) + ((int1%0x00001000>=0x00000800 ~= (int2%0x00001000>=0x00000800) and 0x00000800) or 0) + ((int1%0x00002000>=0x00001000 ~= (int2%0x00002000>=0x00001000) and 0x00001000) or 0) + ((int1%0x00004000>=0x00002000 ~= (int2%0x00004000>=0x00002000) and 0x00002000) or 0) + ((int1%0x00008000>=0x00004000 ~= (int2%0x00008000>=0x00004000) and 0x00004000) or 0) + ((int1%0x00010000>=0x00008000 ~= (int2%0x00010000>=0x00008000) and 0x00008000) or 0) + ((int1%0x00020000>=0x00010000 ~= (int2%0x00020000>=0x00010000) and 0x00010000) or 0) + ((int1%0x00040000>=0x00020000 ~= (int2%0x00040000>=0x00020000) and 0x00020000) or 0) + ((int1%0x00080000>=0x00040000 ~= (int2%0x00080000>=0x00040000) and 0x00040000) or 0) + ((int1%0x00100000>=0x00080000 ~= (int2%0x00100000>=0x00080000) and 0x00080000) or 0) + ((int1%0x00200000>=0x00100000 ~= (int2%0x00200000>=0x00100000) and 0x00100000) or 0) + ((int1%0x00400000>=0x00200000 ~= (int2%0x00400000>=0x00200000) and 0x00200000) or 0) + ((int1%0x00800000>=0x00400000 ~= (int2%0x00800000>=0x00400000) and 0x00400000) or 0) + ((int1%0x01000000>=0x00800000 ~= (int2%0x01000000>=0x00800000) and 0x00800000) or 0) + ((int1%0x02000000>=0x01000000 ~= (int2%0x02000000>=0x01000000) and 0x01000000) or 0) + ((int1%0x04000000>=0x02000000 ~= (int2%0x04000000>=0x02000000) and 0x02000000) or 0) + ((int1%0x08000000>=0x04000000 ~= (int2%0x08000000>=0x04000000) and 0x04000000) or 0) + ((int1%0x10000000>=0x08000000 ~= (int2%0x10000000>=0x08000000) and 0x08000000) or 0) + ((int1%0x20000000>=0x10000000 ~= (int2%0x20000000>=0x10000000) and 0x10000000) or 0) + ((int1%0x40000000>=0x20000000 ~= (int2%0x40000000>=0x20000000) and 0x20000000) or 0) + ((int1%0x80000000>=0x40000000 ~= (int2%0x80000000>=0x40000000) and 0x40000000) or 0) + ((int1>=0x80000000 ~= (int2>=0x80000000) and 0x80000000) or 0) return (int3 and bxor(ret, int3, ...)) or ret end local function bnot(int) return 4294967295 - int end local function rshift(int, by) local shifted = int / (2 ^ by) return shifted - shifted % 1 end local function rrotate(int, by) local shifted = int / (2 ^ by) local fraction = shifted % 1 return (shifted - fraction) + fraction * (2 ^ 32) 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) local h = string.gsub(s, ".", function(c) return string.format("%02x", string.byte(c)) end) return h 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(msg, len) local extra = 64 - ((len + 1 + 8) % 64) len = num2s(8 * len, 8) msg = msg .. "\128" .. string.rep("\0", extra) .. len return msg 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(msg, i, H) local w = {} for j = 1, 16 do w[j] = s232num(msg, 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] local s1 = bxor(rrotate(v, 17), rrotate(v, 19), rshift(v, 10)) w[j] = w[j - 16] + s0 + w[j - 7] + s1 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 msg = preproc(msg, #msg) local H = initH256({}) for i = 1, #msg, 64 do digestblock(msg, 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

--[[ END EXTERNAL LIBRARY ]]--

local version = "4.0"
local salt = [[T0B1td2j@<?s3.&8)uXOC1(E>25-~;o2{MJ+mSB=1Ye9SSS|[~7_t195l6Q2Cg/Awb"(53cUr1Ty]]
local supportLoc = ".theoriginalbit/DoorLock/"
local passFile = supportLoc.."access.dat"
local configFile = supportLoc.."access.cfg"
local adv = term.isColor and term.isColor()

local accounts = {}
local terminatePass = ""
local rsOutput
local welcomeMessage
local text = ""

do
  --[[
  Author: TheOriginalBIT
  Version: 1.4.5
  Created: 5 Feb 2013
  Last Update: 22 Feb 2013
  ]]--

  local configHeader = [[
+-------------------------------------------+
+--          CONFIGURATION FILE           --+
+-- Generated by TheOriginalBIT's CConfig --+
+-------------------------------------------+

]]

  local startsWith = function(str, prefix) prefix = tostring(prefix) return str:sub( 1, prefix:len()) == prefix end
  local contains = function(str, seq) str = tostring(str) local sStart, sEnd, sStr = str:find(seq, 1) return sStart ~= nil end
  local split = function(str, pat) local t = {} local fpat = "(.-)"..pat local last_end = 1 local s, e, cap = str:find(fpat, 1) while s do if s ~= 1 or cap ~= "" then table.insert(t,cap) end last_end = e+1 s, e, cap = str:find(fpat, last_end) end if last_end <= #str then cap = str:sub(last_end) table.insert(t, cap) end return t end
  local trim = function(str) return (str:gsub("^%s*(.-)%s*$", "%1")) end
  local log = function(...) if not emulog then return end local details = table.concat({...}," ") emulog.log(details) end
  local clearLog = function() if not emulog then return end emulog.clear() end

  -- If you're reading the code, normally I do not suggest overwriting system functions without restoring them! Do as I say, not as I do. I've made sure this 100% won't break other programs!
  _G.assert = function(condition, errMsg, level) if not condition then error(errMsg, (tonumber(level) or 1) + 1) end return condition end

  local openedConfigs = {}
  Configuration = {}
  local debugCount = 0

  Configuration.__index = Configuration

  local function vaidateInitParams(path)
    assert(type(p) ~= "string", "Invalid file path supplied", 3)
    assert(not openedConfigs[p], "A configuration file object already exists for this file", 3)
  end

  local function validateParam(param, value)
    assert(type(param) == value, "Invalid parameter, expected "..value.." got "..type(param), 3)
  end

  local function validBoolean(b)
    return (b == "true" or b == "false" or b == "1" or b == "0" or b == 1 or b == 0 or b == true or b == false or b == "yes" or b == "no")
  end

  local colorStrings = {["colors.white"] = colors.white, ["colours.white"] = colors.white, ["white"] = colors.white, ["colors.orange"] = colors.orange, ["colours.orange"] = colors.orange, ["orange"] = colors.orange, ["colors.magenta"] = colors.magenta, ["colours.magenta"] = colors.magenta, ["magenta"] = colors.magenta, ["colors.lightblue"] = colors.lightBlue, ["colours.lightblue"] = colors.lightBlue, ["lightblue"] = colors.lightBlue, ["light blue"] = colors.lightBlue, ["colors.yellow"] = colors.yellow, ["colours.yellow"] = colors.yellow, ["yellow"] = colors.yellow, ["colors.lime"] = colors.lime, ["colours.lime"] = colors.lime, ["lime"] = colors.lime, ["colors.pink"] = colors.pink, ["colours.pink"] = colors.pink, ["pink"] = colors.pink, ["colors.gray"] = colors.gray, ["colours.gray"] = colors.gray, ["gray"] = colors.gray, ["colors.grey"] = colors.gray, ["colours.grey"] = colors.gray, ["grey"] = colors.gray, ["colors.lightgray"] = colors.lightGray, ["colours.lightgray"] = colors.lightGray, ["lightgray"] = colors.lightGray, ["light gray"] = colors.lightGray, ["colors.lightgrey"] = colors.lightGray, ["colours.lightgrey"] = colors.lightGray, ["lightgrey"] = colors.lightGray, ["light grey"] = colors.lightGray, ["colors.cyan"] = colors.cyan, ["colours.cyan"] = colors.cyan, ["cyan"] = colors.cyan, ["colors.purple"] = colors.purple, ["colours.purple"] = colors.purple, ["purple"] = colors.purple, ["colors.blue"] = colors.blue, ["colours.blue"] = colors.blue, ["blue"] = colors.blue, ["colors.brown"] = colors.brown, ["colours.brown"] = colors.brown, ["brown"] = colors.brown, ["colors.green"] = colors.green, ["colours.green"] = colors.green, ["green"] = colors.green, ["colors.red"] = colors.red, ["colours.red"] = colors.red, ["red"] = colors.red, ["colors.black"] = colors.black, ["colours.black"] = colors.black, ["black"] = colors.black}

  local function validateColor(col)
    if tonumber(col) then
      local col = tonumber(col)
      if not (col >= 2^0 and col <= (2^16)-1) then return false end
      return true, col
    else
      if colorStrings[col:lower()] then
        return true, colorStrings[col:lower()]
      else
        return false
      end
    end
  end

  function Configuration.new(p)
    vaidateInitParams(p)
    openedConfigs[p] = true
    return setmetatable({ path = p, properties = {} }, Configuration)
  end

  local function get(self, key, defaultValue)
    if type(self.properties[key]) == "table" then
      self.properties[key].default = defaultValue
      return self.properties[key].value
    else
      self.properties[key] = {}
      self.properties[key].value = defaultValue
      self.properties[key].default = defaultValue
      self.properties[key].comment = ""
      self.properties[key].restrict = ""
      return defaultValue
    end
  end

  function Configuration:getBoolean(key, defaultBoolean)
    validateParam(key, "string")
    assert(validBoolean(defaultBoolean), "Boolean value expected, got "..type(defaultBoolean).." of type "..type(defaultBoolean), 2)
    local v = get(self, key, defaultBoolean)
    assert(validBoolean(v), "No boolean value found under the key \'"..tostring(key).."\', found "..tostring(v).." of type "..type(v), 2)
    return v == "true" or v == true or v == "1" or v == 1 or v == "yes"
  end

  function Configuration:getNumber(key, defaultNumber)
    validateParam(key, "string")
    return assert(tonumber(get(self, key, defaultNumber)), "Number expected, got "..type(defaultNumber), 2)
  end

  function Configuration:getString(key, defaultString)
    validateParam(key, "string")
    return assert(tostring(get(self, key, defaultString)), "Invalid parameter, expected string got "..type(key), 2)
  end

  function Configuration:getColor(key, defaultColor)
    validateParam(key, "string")
    assert(validateColor(defaultColor), "Invalid parameter, color expected", 2)
    local ok, col = validateColor(get(self, key, defaultColor))
    assert(ok, "Config file does not contain color for value "..tostring(key), 2)
    self.properties[key].restrict = "A number between 1 and 65535 or the string colors.<color>"
    return col
  end

  Configuration.getColour = Configuration.getColor

  function Configuration:getTable(key, defaultTable)
    validateParam(key, "string")
    validateParam(defaultTable, "table")
    local v = self:getString(key, textutils.serialize(defaultTable))
    v = textutils.unserialize(v)
    return assert(v, "No table in config", 2)
  end

  function Configuration:containsKey(key)
    return (self.properties[key] ~= nil)
  end

  function Configuration:load()
    if not fs.exists(self.path) then return false end
    local handle = fs.open(self.path,"r")
    assert(handle, "Cannot open configuration file \'"..self.path.."\' for read")
    local contents = handle.readAll()
    handle.close()

    if not contents or contents == "" or contents == "\n" then return end
    local count = 1
    contents = split(contents,"\n")
    for i = 1, #contents do
      local v = contents[i]
      if v and v ~= "" and not startsWith(v,"+--") and contains(v,"=") then
        local prop = split(v, "%=")
        key = trim(prop[1])
        value = trim(prop[2])
        self.properties[key] = {}
        self.properties[key]["value"]   = value
        self.properties[key]["comment"] = ""
        self.properties[key]["default"] = value
      elseif v and v ~= "" and not startsWith(v,"+--") and not contains(v,"=") then
        print("Error: \""..self.path.."\": Cannot parse line #"..i.." in configuration file")
        error()
      end
    end
    return true
  end

  function Configuration:reset(key)
    if type(self) ~= "table" or type(self.properties) ~= "table" then error("Error resetting config, have you forgotten to load the config?",2) end
    if key and not self.properties[key] then error("No property for key "..tostring(key)..", have you forgotten to load the config?",2) end

    if key then
      self.properties[key].value = self.properties[key].default
    else
      for k,_ in pairs(self.properties) do
        self.properties[k].value = self.properties[k].default
      end
    end
  end

  function Configuration:save()
    local handle = fs.open(self.path,"w")
    handle.write(configHeader)
    for k,v in pairs(self.properties) do
      handle.write("+-- ")
      if v.comment and v.comment ~= "" then
        handle.write(tostring(v.comment).."; ")
      end
      if v.restrict and v.restrict ~= "" then
        handle.write("restrictions: "..tostring(v.restrict).."; ")
      end
      handle.write("default: "..tostring(v.default).."\n")
      handle.write(k.."="..tostring(v.value).."\n\n")
    end
    handle.close()
  end

  function Configuration:addCommentForKey(key,com)
    assert(self.properties[key], "No property with key \'"..tostring(key).."\' to add comment for", 2)
    self.properties[key].comment = com
  end

  function Configuration:addRestrictionForKey(key,res)
    assert(self.properties[key], "No property with key \'"..tostring(key).."\' to add comment for", 2)
    self.properties[key].restrict = res
  end

  function Configuration:debug(toFile)
    toFile = (toFile == true)
    local handle = toFile and fs.open("debug"..debugCount,"w") or nil
    for k,v in pairs(self.properties) do
      if toFile then
        handle.write(k..":"..v.value.."\n")
      else
        print(k..":"..v.value)
      end
    end
    if toFile then
      handle.close()
      debugCount = debugCount + 1
    end
  end
end

term.clear = function() if adv then term.setBackgroundColor(colors.black) term.setTextColor(colors.white) end term.native.clear() term.setCursorPos(1,1) end

local waitForKey = function() os.pullEventRaw("key") end
local checkPass = function(pass) for _,v in pairs(accounts) do if v == pass then return true end end return false end
local validateSideWithoutFail = function(side) for _,v in pairs(rs.getSides()) do if v == side then return v end end return "left" end
local printRecognition = function() local sw, sh = term.getSize();local pX,pY=term.getCursorPos();term.setCursorPos(sw - string.len("By TheOriginalBIT "), sh);write("By TheOriginalBIT");term.setCursorPos(pX, pY);end
local split = function(str, pat) local t = {} local fpat = "(.-)"..pat local last_end = 1 local s, e, cap = str:find(fpat, 1) while s do if s ~= 1 or cap ~= "" then table.insert(t,cap) end last_end = e+1 s, e, cap = str:find(fpat, last_end) end if last_end <= #str then cap = str:sub(last_end) table.insert(t, cap) end return t end
local cwrite = function(msg,y) local w,h = term.getSize() term.setCursorPos(w/2-#msg/2+(#msg%2 and 1 or 0), y) write(msg) end

local config = Configuration.new(configFile)

local function loadAccounts()
  local file = io.open(passFile,"r")
  local contents = file:read("*a")
  file:close()
  contents = split(contents, "\n")
  terminatePass = contents[1]
  for i = 2, #contents do
    if #contents[i] == 64 then
      table.insert(accounts, contents[i])
    end
  end
end

local function saveAccounts()
  local file = io.open(passFile,"w")
  file:write(terminatePass.."\n")
  file:write(table.concat(accounts,"\n"))
  file:close()
end

local function loadConfig()
  config:load()

  welcomeMessage = config:getString("welcomeMessage", "Advanced DoorLock v4.0")
  config:addCommentForKey("welcomeMessage", "the message to display at the top of the screen")
  rsOutput = validateSideWithoutFail(config:getString("redstoneSide", "left"))
  config:addCommentForKey("redstoneSide", "side to output when password is correct")
  canDiskStay = config:getBoolean("allowDisks", false)
  config:addCommentForKey("allowDisks", "allows disks to be inserted into any disk drives found")

  config:save()
end

local function getInput(msg, char)
  x, y = term.getCursorPos()
  input = ""
  print(msg)
  while true do
    term.setCursorPos(x, y)
    term.clearLine()
    
    write(msg.." ")
    if char then
      for i = 1, #input do
        write(char)
      end
    else
      write(input)
    end
    
    event = { os.pullEventRaw() }
    
    if event[1] == "char" then
      input = input..event[2]
    elseif event[1] == "key" then
      if event[2] == keys.backspace then
        input = input:sub(1, input:len() - 1)
      elseif event[2] == keys.enter then
        break
      end
    end
  end
  print()
  return input
end

local function initialSetup()
  term.clear()
  print("Setup...")
  
  if not fs.exists(supportLoc) then
    fs.makeDir(supportLoc)
  end

  if not fs.exists(passFile) then
    local pfile = io.open(passFile,"w")
    pfile:write()
    pfile:close()
  end
  
  while true do
    local ok, err = pcall(loadConfig)
    print("Prepare to review the config file... ")
    os.startTimer(3)
    os.pullEvent("timer")

    local ope = os.pullEvent
    os.pullEvent = os.pullEventRaw
    shell.run("edit "..configFile)
    os.pullEvent = ope
    local ok, err = pcall(loadConfig)
    if not ok then
      term.setTextColor(colors.red)
      print("Error: Cannot parse the config file. Please check syntax for what you changed.\n\n")
      term.setTextColor(colors.white)
      os.startTimer(3)
      os.pullEvent("timer")
    else
      break
    end
  end

  print("Prepare to setup passwords... ")
  os.startTimer(3)
  os.pullEvent("timer")

  while true do
    term.clear()
    print("Termination password setup.")
    local pw = getInput("Password:","*")
    if pw == "finished" then break end
    local pw2 = getInput("Again:","*")
    if pw2 == "finished" then break end
    if pw == pw2 then
      terminatePass = hash(pw..salt)
      saveAccounts()
      print("Password added")
      os.startTimer(2)
      os.pullEvent("timer")
      break
    else
      print("Passwords do not match")
      os.startTimer(2)
      os.pullEvent("timer")
    end
  end

  while true do
    term.clear()
    print("Type 'finished' to stop account entry")
    local pw = getInput("Password:","*")
    if pw == "finished" then break end
    local pw2 = getInput("Again:","*")
    if pw2 == "finished" then break end
    if pw == pw2 then
      table.insert(accounts,hash(pw..salt))
      saveAccounts()
      print("Password added")
      os.startTimer(2)
      os.pullEvent("timer")
    else
      print("Passwords do not match")
      os.startTimer(2)
      os.pullEvent("timer")
    end
  end
end

local tArgs = {...}

if #tArgs == 1 and tArgs[1] == "-setup" then
  initialSetup()
elseif #tArgs ~= 0 then
  print("Usage: "..fs.getName(shell.getRunningProgram()))
  print("Usage: "..fs.getName(shell.getRunningProgram()).." -setup")
  error()
end

if not fs.exists(passFile) or not fs.exists(configFile) then
  initialSetup()
else
  loadConfig()
  loadAccounts()
end

local sw, sh = term.getSize()
local text
local errorString
local errorStringTimer

local function reset()
  text = ""
  trollString = ""
  errorString = ""
  errorStringTimer = os.startTimer(0)
  rs.setOutput(rsOutput, false)
end

local function checkDisk()
  for _,v in pairs(rs.getSides()) do
    if peripheral.getType(v) == "drive" and disk.isPresent(v) and disk.hasData(v) then
      local path = disk.getMountPath(v)
      if fs.exists(path.."/startup") then
        if fs.exists(path.."/goodTry_startup") then fs.delete(path.."/goodTry_startup") end
        fs.move(path.."/startup", path.."/goodTry_startup")
        disk.eject(v)
        return true
      end
    end
  end

  return false
end

reset()
while true do
  local w,h = term.getSize()
  term.clear()

  if adv then
    term.setTextColor(colors.yellow)
  end
  cwrite(welcomeMessage or "None found", 2)
  printRecognition()
  if adv then
    term.setTextColor(colors.white)
  end
  
  term.setCursorPos(6, h / 2)
  write("Password: "..string.rep( "*", math.min(#text, w-22)))
  
  if not canDiskStay and checkDisk() then
    trollString = "Error: Disks with a startup file are not allowed!"
    errsorStringTimer = os.startTimer(4)
  end

  if adv then
    term.setTextColor(colors.red)
  end

  term.setCursorPos(2, h)
  write(errorString)
  
  term.setCursorPos(2, h - 2)
  write(trollString)

  if adv then
    term.setTextColor(colors.white)
  end
  
  local event = { os.pullEventRaw() }

  if event[1] == "char" then
    text = text..event[2]
  elseif event[1] == "key" then
    if errorString ~= "Error: Cannot terminate!" then errorString = "" end
    if event[2] == keys.backspace then
      text = text:sub(1, text:len() - 1)
    elseif event[2] == keys.enter then
      local attempt = hash(text..salt)
      if checkPass( attempt ) then
        rs.setOutput(rsOutput, true)
        local waitTimer = os.startTimer(3)
        term.setCursorPos(6, h/2)
        term.clearLine()
        if adv then
          term.setTextColor(colors.lime)
        end
        cwrite("ACCESS GRANTED",h/2)
        while true do
          event = { os.pullEventRaw() }
          if event[1] == "timer" and event[2] == waitTimer then break end
        end
        reset()
      else
        if attempt == terminatePass then
          term.clear()
          if adv then
            term.setTextColor(colors.yellow)
          end
          print("Terminal Access")
          term.clear = term.native.clear
          error()
        else
          text = ""
          errorString = "Error: Incorrect Password"
          errorStringTimer = os.startTimer(4)
        end
      end
    end
  elseif event[1] == "timer" and event[2] == errorStringTimer then
    errorString = ""
    trollString = ""
  elseif event[1] == "terminate" then
    text = ""
    errorString = "Error: Cannot terminate!"
    errorStringTimer = os.startTimer(2)
  end
end