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Nginx-Lua-Anti-DDoS
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JavascriptPuzzleVars stopped working since 2020 as JS calcs 20200104 + 04012020 into 21253816 

To fix number calculation with leading zeros:
* use parseInt
* explicit pass of a string
* define base of 10
This commit is contained in:
Stefan Priebe 2020-01-05 22:38:35 +01:00
parent 43693ba2be
commit 30987f8b7a
1 changed files with 1 additions and 1 deletions
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2
lua/anti_ddos_challenge.lua
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@ -137,7 +137,7 @@ Javascript Puzzle for web browser to solve do not touch this unless you understa
--Make our Javascript puzzle a little bit more dynamic than the static equation above it will change every 24 hours :) I made this because the static one is pretty poor security compared to this but this can be improved allot though.
--TODO: IMPROVE THIS!
local JavascriptPuzzleVars = [[]] .. os.date("%Y%m%d",os.time()-24*60*60) .. [[ + ]] .. os.date("%d%m%Y",os.time()-24*60*60) ..[[]] --Javascript output of our two random numbers
local JavascriptPuzzleVars = [[parseInt("]] .. os.date("%Y%m%d",os.time()-24*60*60) .. [[", 10) + parseInt("]] .. os.date("%d%m%Y",os.time()-24*60*60) ..[[", 10)]] --Javascript output of our two random numbers
local JavascriptPuzzleVars_answer = os.date("%Y%m%d",os.time()-24*60*60) + os.date("%d%m%Y",os.time()-24*60*60) --lua output of our two random numbers
local JavascriptPuzzleVars_answer = math.floor(JavascriptPuzzleVars_answer+0.5) --fix bug removing the 0. decimal on the end of the figure
local JavascriptPuzzleVars_answer = tostring(JavascriptPuzzleVars_answer) --convert the numeric output to a string