EVOLUTION-MANAGER

Edit File: file_utils.lua

--
-- (C) 2019-20 - ntop.org
--

local file_utils = {}
local os_utils = require("os_utils")

-- ##############################################

function file_utils.copy_file(fname, src_path, dst_path)
   local src
   local dst

if(fname == nil) then
      src = src_path
      dst = dst_path
   else
      src = os_utils.fixPath(src_path .. "/" .. fname)
      dst = os_utils.fixPath(dst_path .. "/" .. fname)
   end

local infile, err = io.open(src, "rb")

-- NOTE: Do not forget the 'b' flag [https://www.lua.org/pil/21.2.2.html]
   --       as this is compulsory on windows

traceError(TRACE_INFO, TRACE_CONSOLE, string.format("Copying file %s -> %s", src, dst))

if(do_trace) then
      io.write(string.format("\tLoad [%s]\n", fname))
   end

if(ntop.exists(dst)) then
      -- NOTE: overwriting is not allowed as it means that a file was already provided by
      -- another plugin
      traceError(TRACE_ERROR, TRACE_CONSOLE, string.format("Trying to overwrite existing file %s", dst))
      return(false)
   end

if(infile == nil) then
      traceError(TRACE_ERROR, TRACE_CONSOLE, string.format("Could not open file %s for read: %s", src, err or ""))
      return(false)
   end

local instr = infile:read("*all")
   infile:close()

local outfile, err = io.open(dst, "wb")
   if(outfile == nil) then
      traceError(TRACE_ERROR, TRACE_CONSOLE, string.format("Could not open file %s for write", dst, err or ""))
      return(false)
   end

outfile:write(instr)
   outfile:close()

ntop.setDefaultFilePermissions(dst)

return(true)
end

-- #########################################################

function file_utils.recursive_copy(src_path, dst_path, path_map)
   for fname in pairs(ntop.readdir(src_path)) do
      if not file_utils.copy_file(fname, src_path, dst_path) then
	 return(false)
      end

if path_map then
	 path_map[os_utils.fixPath(dst_path .. "/" .. fname)] = os_utils.fixPath(src_path .. "/" .. fname)
      end
   end

return(true)
end

-- #########################################################

return(file_utils)