2672d3b467
No need for 501 error code, as this should be returned only when needed, and will be much more efficient to not: 1.) take a table entry for the majority of cases when it isn't needed 2.) Utilize only enough memory needed to instantiate a string when it _is_ needed.
36 lines
1.5 KiB
Lua
36 lines
1.5 KiB
Lua
-- httpserver-header.lua
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-- Part of nodemcu-httpserver, knows how to send an HTTP header.
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-- Author: Marcos Kirsch
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return function (connection, code, extension)
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local function getHTTPStatusString(code)
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local codez = {[200]="OK", [400]="Bad Request", [404]="Not Found",}
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local myResult = codez[code]
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-- enforce returning valid http codes all the way throughout?
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if myResult then return myResult else return "Not Implemented" end
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end
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local function getMimeType(ext)
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local gzip = false
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-- A few MIME types. Keep list short. If you need something that is missing, let's add it.
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local mt = {css = "text/css", gif = "image/gif", html = "text/html", ico = "image/x-icon", jpeg = "image/jpeg", jpg = "image/jpeg", js = "application/javascript", json = "application/json", png = "image/png", xml = "text/xml"}
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-- add comressed flag if file ends with gz
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if ext:find("%.gz$") then
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ext = ext:sub(1, -4)
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gzip = true
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end
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if mt[ext] then contentType = mt[ext] else contentType = "text/plain" end
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return {contentType = contentType, gzip = gzip}
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end
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local mimeType = getMimeType(extension)
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connection:send("HTTP/1.0 " .. code .. " " .. getHTTPStatusString(code) .. "\r\nServer: nodemcu-httpserver\r\nContent-Type: " .. mimeType["contentType"] .. "\r\n")
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if mimeType["gzip"] then
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connection:send("Content-Encoding: gzip\r\n")
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end
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connection:send("Connection: close\r\n\r\n")
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end
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