Drive Encrypter

local args = {...}

if #args < 4 then
  print("DriveCrypter - a drive encrypting tool")
  print("Usage: " .. fs.getName(shell.getRunningProgram()) .. " <encrypt | decrypt> <key> <init. vector> <path>")
  print("Uses AES to encrypt the given files.")
  return
end

local func = args[1] or ""
local key = args[2] or ""
local iv = args[3] or ""
local path = args[4] or ""

if not fs.isDir(path) then
  error("Invalid path",0)
end

if not fs.exists("filehidercli") then
  local webHandle = http.get("http://pastebin.com/raw.php?i=wQ1aUnpU")
  if webHandle then
    local apiData = webHandle.readAll()
    webHandle.close()
    local apiHandle = fs.open("filehidercli",'w')
    apiHandle.write(apiData)
    apiHandle.close()
  else
    if not http then
      error("File Hider CLI is not present and the HTTP API is disabled.\nPlease either aquire File Hider CLI manually (from Pastebin wQ1aUnpU, must be saved as filehidercli in /) or enable the HTTP API.")
    else
      error("File Hider CLI is not present and you either you don't have Internet or Pastebin's servers are down.\nFile Hider CLI is a required dependecy and the program can't continue.")
    end
  end
end

local function listAll(_path,_files)
  local path = _path or ""
  local files = _files or {}
  if #path > 1 then table.insert(files,path) end
  for _,file in ipairs(fs.list(path)) do
    local path = fs.combine(path,file)
    if fs.isDir(path) then
      listAll(path,files)
    else
      table.insert(files,path)
    end
  end
  return files
end

for _,filename in ipairs(listAll(path)) do
  shell.run("filehidercli",filename,func,key,iv,filename)
end