Help needed with LUA script! Convert Cloudflare Rule

Hi,

was testing few DDOS Booters online on our website, found a way to block attacks via custom rule via Cloudflare, but need to convert it to HAPROXY rule so I worked on a LUA script, but wasn’t able to reach any result near.

I don’t know how actually Cloudflare calculates headers but was testing few rules out on CF for hours and it was successful to block attacks.

it is with setting

any(len(http.request.headers.values[*])[*] gt 130)

-- Function to check the number of headers
function check_headers(txn)
    local headers = txn.http:req_get_headers()
    local header_count = 0

    for _ in pairs(headers) do
        header_count = header_count + 1
    end

    if header_count > 130 then
        txn:set_var('txn.too_many_headers', true)
    end


end

-- Register the function to be called for each HTTP request
core.register_action('check_headers', {'http-req'}, check_headers)

here is the thread that I took ideas from but couldn’t achieve any success! Tried AI help, rules out and same result.

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