109 lines
3.1 KiB
Lua
109 lines
3.1 KiB
Lua
--TODO:
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configFile="config.lua"
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function startWebServer()
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srv=net.createServer(net.TCP)
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srv:listen(80,function(conn)
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conn:on("receive", function(conn,payload)
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if (payload:find("GET /") ~= nil) then
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--here is code for handling http request from a web-browser
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-- Load the webcontent
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mydofile("webpage")
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ssid, password, bssid_set, bssid = wifi.sta.getconfig()
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sendWebPage(conn,1)
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conn:on("sent", function(conn)
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conn:close()
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-- Clear the webpage generation
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sendWebPage=nil
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print("Clean webpage from RAM")
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end)
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else if (payload:find("POST /") ~=nil) then
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--code for handling the POST-request (updating settings)
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_, postdatastart = payload:find("\r\n\r\n")
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--Next lines catches POST-requests without POST-data....
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if postdatastart==nil then postdatastart = 1 end
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local postRequestData=string.sub(payload,postdatastart+1)
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local _POST = {}
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for i, j in string.gmatch(postRequestData, "(%w+)=([^&]+)&*") do
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_POST[i] = j
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end
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postRequestData=nil
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print("Inform user via Web")
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if (sendWebPage == nil) then
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print("Loading webpage ...")
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-- Load the webcontent
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mydofile("webpage")
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end
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conn:on("sent", function(conn)
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conn:close()
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-- Clear the webpage generation
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sendWebPage=nil
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print("Clean webpage from RAM")
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end)
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if ((_POST.ssid~=nil) and (_POST.password~=nil) and (_POST.sntpserver~=nil) and (_POST.timezoneoffset~=nil)) then
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print("New config!")
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-- Safe configuration:
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file.remove(configFile .. ".new")
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sec, _ = rtctime.get()
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file.open(configFile.. ".new", "w+")
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file.write("-- Config\n" .. "wifi.sta.config(\"" .. _POST.ssid .. "\",\"" .. _POST.password .. "\")\n" .. "sntpserverhostname=\"" .. _POST.sntpserver .. "\"\n" .. "timezoneoffset=\"" .. _POST.timezoneoffset .. "\"\n")
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file.write("print(\"Config from " .. sec .. "\")\n")
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file.close()
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sec=nil
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file.remove(configFile)
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print("Rename config")
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if (file.rename(configFile .. ".new", configFile)) then
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print("Successfully")
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dofile(configFile) -- load the new values
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print("New Config loaded")
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sendWebPage(conn,2) -- success
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else
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print("Error")
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sendWebPage(conn,3) -- error
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end
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else
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ssid, password, bssid_set, bssid = wifi.sta.getconfig()
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sendWebPage(conn,4) -- not all parameter set
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end
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else
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--here is code, if the connection is not from a webbrowser, i.e. telnet or nc
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global_c=conn
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function s_output(str)
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if(global_c~=nil)
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then global_c:send(str)
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end
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end
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node.output(s_output, 0)
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global_c:on("receive",function(c,l)
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node.input(l)
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end)
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global_c:on("disconnection",function(c)
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node.output(nil)
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global_c=nil
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end)
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print("Welcome to Word Clock")
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end
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end
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end)
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conn:on("disconnection", function(c)
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node.output(nil) -- un-register the redirect output function, output goes to serial
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end)
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end)
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end
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