httpserver-header.lua 1.3 KB

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  1. -- httpserver-header.lua
  2. -- Part of nodemcu-httpserver, knows how to send an HTTP header.
  3. -- Author: Marcos Kirsch
  4. return function (connection, code, extension, isGzipped)
  5. local function getHTTPStatusString(code)
  6. local codez = {[200]="OK", [400]="Bad Request", [404]="Not Found",}
  7. local myResult = codez[code]
  8. -- enforce returning valid http codes all the way throughout?
  9. if myResult then return myResult else return "Not Implemented" end
  10. end
  11. local function getMimeType(ext)
  12. -- A few MIME types. Keep list short. If you need something that is missing, let's add it.
  13. local mt = {css = "text/css", gif = "image/gif", html = "text/html", ico = "image/x-icon", jpeg = "image/jpeg",
  14. jpg = "image/jpeg", js = "application/javascript", json = "application/json", png = "image/png", xml = "text/xml"}
  15. if mt[ext] then return mt[ext] else return "text/plain" end
  16. end
  17. local mimeType = getMimeType(extension)
  18. connection:send("HTTP/1.0 " .. code .. " " .. getHTTPStatusString(code) .. "\r\nServer: nodemcu-httpserver\r\nContent-Type: " .. mimeType .. "\r\n")
  19. if isGzipped then
  20. connection:send("Cache-Control: private, max-age=2592000\r\nContent-Encoding: gzip\r\n")
  21. end
  22. connection:send("Connection: close\r\n\r\n")
  23. end