Reacting on ftp upload

[baerdo]

Is it possible to react in a script when a file has been uploaded to the spaceLYnk ftp server?

[Erwin-vd-Zwart]

@baerdo 

You could use a resident script to read the files in the ftp folder and based on the result create a condition to do something with script..

function scandir(dirname)

  callit = os.tmpname()

  os.execute("ls -a1 "..dirname .. " >"..callit)

  f = io.open(callit,"r")

  rv = f:read("*all")

  f:close()

  os.remove(callit)

  tabby = {}

  local from  = 1

  local delim_from, delim_to = string.find( rv, "\n", from  )

  while delim_from do

    filename = string.trim(string.sub(rv, from , delim_from-1))

    if filename ~= "." and filename ~= ".." then

  table.insert( tabby,  filename)

    end

    from  = delim_to + 1

    delim_from, delim_to = string.find( rv, "\n", from  )

  end

  return tabby

end

filetable = scandir("/home/ftp/")

if type(filetable) == 'table' then

log("Nr of files = " .. #filetable)

for _,filename in ipairs(filetable) do

  log(filename)

  end

end

[baerdo]

thanks for the code. For me this could be part of a workaround. I think it would be much better to either have a listener with an event or something similar. It would be more user friendly. Or did I miss something like a http listener or a tcp listener? I have not found anything like this. I would like to pass over from a different system a few stati from sensor. I can either do filetransfer or upload over tcp in general or http, mqtt or so.

[Erwin-vd-Zwart]

There is no event available on FTP so your only option is this script.

You could have a tcp listener, MQTT is also available so what do you prefer?