-- httpserver-static.lua -- Part of nodemcu-httpserver, handles sending static files to client. -- Author: Marcos Kirsch local function getMimeType(ext) -- A few MIME types. Keep list short. If you need something that is missing, let's add it. local mt = {css = "text/css", gif = "image/gif", html = "text/html", ico = "image/x-icon", jpeg = "image/jpeg", jpg = "image/jpeg", js = "application/javascript", josn="application/json", png = "image/png"} if mt[ext] then return mt[ext] else return "text/plain" end end local function sendHeader(connection, code, codeString, mimeType) connection:send("HTTP/1.0 " .. code .. " " .. codeString .. "\r\nServer: nodemcu-httpserver\r\nContent-Type: " .. mimeType .. "\r\nConnection: close\r\n\r\n") end return function (connection, args) sendHeader(connection, 200, "OK", getMimeType(args.ext)) --print("Begin sending:", args.file) -- Send file in little chunks local continue = true local bytesSent = 0 while continue do -- 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(512) file.close() if chunk == nil then continue = false else coroutine.yield() connection:send(chunk) bytesSent = bytesSent + #chunk --print("Sent" .. args.file, bytesSent) end end --print("Finished sending:", args.file) end