Check if SONOS queue is empty

[Erwin van der Zwart]

Hi David,

I had some spare time and added it to the function:

Code:

-- Set Sonos IP address sonos_ipaddress = '192.168.10.31' -- Function to send commands to Sonos function upnpavcmd(host, port, cmd, param)  local client, soap, reqs, service, res, err  require('socket')  client = socket.tcp()  client:settimeout(3)  -- Try connecting to upnp endpoint  res, err = client:connect(host, port)  if not res then    return nil, err  end  -- Guess service name based on command  if cmd == 'SetVolume' or  cmd == 'GetVolume' or  cmd == 'SetMute' or  cmd == 'GetMute' or  cmd == 'SetBass' or  cmd == 'GetBass' or  cmd == 'SetTreble' or  cmd == 'GetTreble' or  cmd == 'SetLoudness' or  cmd == 'GetLoudness' then    media = 'MediaRenderer'    service = 'RenderingControl'  elseif cmd == 'Browse' then    media = 'MediaServer'    service = 'ContentDirectory'  else    media = 'MediaRenderer'    service = 'AVTransport'  end  -- Soap envelope  soap = '<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">' ..           '<s:Body>' ..             '<u:' .. cmd .. ' xmlns:u="urn:schemas-upnp-org:service:' .. service .. ':1">' ..               '<InstanceID>0</InstanceID>' ..               (param or '') ..             '</u:' .. cmd .. '>' ..           '</s:Body>' ..         '</s:Envelope>'  -- Http request    reqs = 'POST /' .. media .. '/' .. service .. '/Control HTTP/1.1\r\n' ..         'CONNECTION: close\r\n' ..         'HOST: ' .. host .. ':' .. port .. '\r\n' ..         'CONTENT-LENGTH: ' .. soap:len() .. '\r\n' ..         'CONTENT-TYPE: text/xml; charset="utf-8"\r\n' ..         'SOAPACTION: "urn:schemas-upnp-org:service:' .. service .. ':1#' .. cmd .. '"\r\n' ..         '\r\n' .. soap  -- Send http request  res, err = client:send(reqs)  if not res then    return nil, err  end  -- Get reply and close connection  res, err = client:receive('*a')  client:close()  return res, err end -- Get what's in the queue function getQueueContent(ip, port) BrowseConfig = '<ObjectID>Q:0</ObjectID>' ..  '<BrowseFlag>BrowseDirectChildren</BrowseFlag>' ..  '<Filter>*</Filter>' ..  '<StartingIndex>0</StartingIndex>' ..  '<RequestedCount>0</RequestedCount>' ..  '<SortCriteria>*</SortCriteria>'  result,err = upnpavcmd(ip, port, 'Browse', BrowseConfig)  return result,err end -- Command to get queue content and count (<NumberReturned>) queuecontent = getQueueContent(sonos_ipaddress, 1400) for i in string.gmatch(queuecontent, '<NumberReturned.-</NumberReturned>') do  if i ~= nil then    queuecount =  i:match([[<NumberReturned>(.-)</NumberReturned>]])    if queuecount then      queuecount = tonumber(queuecount)    end  end end -- Do action(s) based on number of items inside queue if queuecount > 0 then  -- Put here your normal play action else  -- Put here your URI play action end

BR,

Erwin van der Zwart