nodemcu-httpserver/httpserver-static.lua

31 lines
1.0 KiB
Lua

-- httpserver-static.lua
-- Part of nodemcu-httpserver, handles sending static files to client.
-- Author: Marcos Kirsch
return function (connection, req, args)
--print("Begin sending:", args.file)
dofile("httpserver-header.lc")(connection, 200, args.ext, args.isGzipped)
-- Send file in little chunks
local continue = true
local size = file.list()[args.file]
local bytesSent = 0
local chunkSize = 1024 -- @TODO: can chunkSize be larger?
while continue do
collectgarbage()
-- NodeMCU file API lets you open 1 file at a time.
-- So we need to open, seek, close each time in order
-- to support multiple simultaneous clients.
file.open(args.file)
file.seek("set", bytesSent)
local chunk = file.read(chunkSize)
file.close()
connection:send(chunk)
bytesSent = bytesSent + #chunk
chunk = nil
--print("Sent: " .. bytesSent .. " of " .. size)
if bytesSent == size then continue = false end
end
--print("Finished sending: ", args.file)
end