moth/html/puzzler.cgi

33 lines
913 B
Perl
Executable File

#! /usr/bin/lua
local cgi = require "cgi"
local koth = require "koth"
local team = cgi.fields['t'] or ""
local category = cgi.fields['c'] or ""
local points = cgi.fields['p'] or ""
local answer = cgi.fields['a'] or ""
-- Defang category name; prevent directory traversal
category = category:gsub("[^A-Za-z0-9]", "-")
-- Check answer
local needle = points .. " " .. answer
local haystack = "../puzzles/" .. category .. "/answers.txt"
local found = koth.anchored_search(haystack, needle)
if (not found) then
koth.page("Wrong answer")
end
local ok, err = koth.award_points(team, category, points)
if (not ok) then
koth.page("Error awarding points",
"<p>You got the right answer, but something blew up trying to give you points.</p>" ..
"<p>" .. err .. "</p>")
end
koth.page("Points awarded",
"<p>" .. points .. " points for " .. team .. "!</p>" ..
"<p><a href=\"puzzles.html\">Back to puzzles</a></p>")