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connect_ap.lua example

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This was supposed to be PRd by moononournation, but since he never did,
I went ahead and added it to a branch.
This commit is contained in:
Marcos Kirsch 2017-07-02 21:49:10 -05:00
parent 7b25c727fe
commit 9082e223a1
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-- Author: moononournation
-- Notes by Marcos: This example could be improved quite a bit.
-- We should provide a way to return available access points as JSON, then populated
-- a drop down list using JavaScript every 5-10 seconds. I'm not sure it's worth it,
-- however.
return function (connection, req, args)
dofile('httpserver-header.lc')(connection, 200, 'html')
connection:send('<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><title>Connect AP</title></head><body><h1>Connect AP</h1>')
if req.method == 'GET' then
local ip = wifi.sta.getip()
if not (ip == nil) then
connection:send('<p>IP: ' .. ip .. '</p>')
end
connection:send('<form method="POST">SSID:<br><input type="text" name="ssid"><br>PWD:<br><input type="text" name="pwd"><br><input type="submit" name="submit" value="Submit"></form>')
elseif req.method == 'POST' then
local rd = req.getRequestData()
collectgarbage()
wifi.sta.config(rd['ssid'], rd['pwd'])
wifi.sta.connect()
local joinCounter = 0
local joinMaxAttempts = 15
tmr.alarm(0, 1000, 1, function()
local ip = wifi.sta.getip()
if ip == nil and joinCounter < joinMaxAttempts then
joinCounter = joinCounter + 1
else
if joinCounter >= joinMaxAttempts then
connection:send('<p>Failed to connect to WiFi Access Point.</p>')
else
connection:send('<p>IP: ' .. ip .. '</p>')
end
tmr.stop(0)
joinCounter = nil
joinMaxAttempts = nil
collectgarbage()
end
end)
end
connection:send('</body></html>')
end