email with attachement gives image size 0

[DGrandes]

Can you try to add a fake parameter in the url like timestamp.
http://user:pass@CAMERAIP/cgi-bin/snapshot.cgi?1&ts=randomnumber

If it worked 1 time, and then fail, maybe there is a caching issue. By adding a parameter that change in the url, it is consider as a new request and will not look in the cache if any.

Thanks!! this random number works perfectly. But with the script don´t attach the image correctly.. can you help me with the script?

Event-Based Script:

mail('MyEmail', 'ALERTA', '¡¡¡Alguien en casa!!!', 'captura') 


Comon Functions:

function mail (to, subject, message, att)
  -- make sure these settings are correct
  local settings = {
    -- "from" field, only e-mail must be specified here
    from = '......',
    -- smtp username
    user = '.....',
    -- smtp password
    password = '......',
    -- smtp server
    server = 'smtp.gmail.com',
    -- smtp server port
    port = 465,
    -- enable tls, required for gmail smtp
    secure = 'tlsv1_2',
  }
  -- make sure these settings are correct
  local smtp = require('socket.smtp')
  
  local escape = function(v)
  return '<' .. tostring(v) .. '>'
end

  local from_name = '.......'
  if att then
    local mime = require('mime')
        local ltn12 = require('ltn12')
    -- generate attachements
    bodyAtt = handleAtt(att) --bodyAtt = handleAtt(att, 'start')
  else
    bodyAtt = {"",""}
  end
  
  if type(to) ~= 'table' then
    to = { to }
  end
  
  for index, email in ipairs(to) do
    to[ index ] = escape(email)
  end
    
  settings.source = smtp.message({
    headers = {
      from = from_name..escape(settings.from),
      to = table.concat(to, ', '),
      subject = subject,
    },
    body = {
        --preamble = "Hello Recipient, \r\n" .. "This is your e-mail with a picture attached.",
        {
          header = {
            ['Content-type'] = 'text/html; charset=utf-8',
          },
          body = mime.eol(0, message),
        },
        bodyAtt[1],bodyAtt[2], -- get attachements if exists (max 2 for now)  <---todo:make it dynamic
        --epilogue = "That's it folks! "
    }
  })
  bodyAtt = nil
   
  -- fixup from field
  settings.from = escape(settings.from)
  settings.rcpt = to

  smtp.send(settings)
end


function handleAtt(att)
    if att == "captura" then
    local snapshot = 'CAMERAIP'--..math.random(0, 1000000000000)
    
    log (snapshot)
    
    local attachment = ltn12.source.chain( ltn12.source.string(snapshot), ltn12.filter.chain(mime.encode('base64'), mime.wrap()) )
    return 
      {
        {
          headers = {
            ['Content-type'] = 'image/jpeg; name="Captura.jpg"',
            ['Content-disposition'] = 'attachment; filename="Captura.jpg"',
            ['Content-transfer-encoding'] = 'BASE64',
          },
          body = attachment
        }
            }
  
end
end
  

Thanks!!!