mirror of https://github.com/dirtbags/moth.git
Cleanup from merge
This commit is contained in:
parent
453c6a88bc
commit
4ed04b99dd
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@ -1,109 +0,0 @@
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#! /usr/bin/env lua
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local cgi = {}
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cgi.POST_MAX = 512
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local CL = tonumber(os.getenv("CONTENT_LENGTH")) or 0
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function getc_post()
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if (CL > 0) then
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CL = CL - 1
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return io.read(1)
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else
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return nil
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end
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end
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local query = os.getenv("QUERY_STRING") or ""
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local query_len = query:len()
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local query_pos = 0
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function getc_get()
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if (query_pos < query_len) then
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query_pos = query_pos + 1
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return string.sub(query, query_pos, query_pos)
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else
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return nil
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end
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end
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function read_hex()
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local a = getc() or 0
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local b = getc() or 0
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return string.char(tonumber(a, 16)*16 + tonumber(b, 16))
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end
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function item()
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local val = ""
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while (true) do
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local c = getc()
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if ((c == nil) or (c == "=") or (c == "&")) then
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return val
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elseif (c == "%") then
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c = read_hex()
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elseif (c == "+") then
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c = " "
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end
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val = val .. c
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end
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end
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function init()
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method = os.getenv("REQUEST_METHOD")
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if (method == "POST") then
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if (os.getenv("HTTP_CONTENT_TYPE") ~= "application/x-www-form-urlencoded") then
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cgi.http_error(415, "Unsupported content-type", "You are sending me data in a format I can't process")
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end
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if (CL > cgi.POST_MAX) then
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cgi.http_error(413, "Post Data Too Long", "You are sending me more data than I'm prepared to handle")
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end
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getc = getc_post
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elseif (method == "GET") then
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local query = os.getenv("QUERY_STRING") or ""
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local query_pos = 0
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local query_len = string.len(query)
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if (query_len > cgi.POST_MAX) then
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cgi.http_error(413, "Query Data Too Long", "You are sending me more data than I'm prepared to handle")
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end
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getc = getc_get
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else
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cgi.http_error(405, "Method not allowed", "I only do GET and POST.")
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end
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cgi.fields = {}
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while (true) do
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local k = item()
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local v = item()
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if (k == "") then
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break
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end
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cgi.fields[k] = v
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end
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end
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function cgi.http_error(code, name, info)
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print(code .. " " .. name)
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print("Allow: GET POST")
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print("Content-type: text/html")
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print()
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print("<h1>" .. code .. " " .. name .. "</h1>")
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print("<p>" .. info .. "</p>")
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os.exit(0)
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end
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function cgi.escape(s)
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s = string.gsub(s, "&", "&")
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s = string.gsub(s, "<", "<")
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s = string.gsub(s, ">", ">")
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return s
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end
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init()
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return cgi
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@ -1,120 +0,0 @@
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#! /usr/bin/env lua
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local koth = {}
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-- cut -d$ANCHOR -f2- | grep -Fx "$NEEDLE"
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function koth.anchored_search(haystack, needle, anchor)
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local f, err = io.open(haystack)
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if (not f) then
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return false, err
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end
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for line in f:lines() do
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if (anchor) then
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pos = line:find(anchor)
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if (pos) then
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line = line:sub(pos+1)
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end
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end
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if (line == needle) then
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f:close()
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return true
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end
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end
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f:close()
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return false
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end
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function koth.page(title, body)
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if (os.getenv("REQUEST_METHOD")) then
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print("Content-type: text/html")
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print()
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end
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print("<!DOCTYPE html>")
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print("<html><head><title>" .. title .. "</title><link rel=\"stylesheet\" href=\"../style.css\"><meta name=\"viewport\" content=\"width=device-width\"></head>")
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print("<body><h1>" .. title .. "</h1>")
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if (body) then
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print("<section>")
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print(body)
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print("</section>")
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end
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print('<nav>')
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print('<ul>')
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print('<li><a href="../register.html">Register</a></li>')
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print('<li><a href="../puzzles.html">Puzzles</a></li>')
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print('<li><a href="../scoreboard.html">Scoreboard</a></li>')
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print('</ul>')
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print('</nav>')
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print('<section id="sponsors">')
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print('<img src="../images/logo0.png" alt="">')
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print('<img src="../images/logo1.png" alt="">')
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print('<img src="../images/logo2.png" alt="">')
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print('<img src="../images/logo3.png" alt="">')
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print('<img src="../images/logo4.png" alt="">')
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print('</section>')
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print("</body></html>")
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os.exit(0)
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end
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--
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-- We're going to rely on `bin/once` only processing files with the right number of lines.
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--
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function koth.award_points(team, category, points, comment)
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team = team:gsub("[^0-9a-f]", "-")
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if (team == "") then
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team = "-"
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end
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local filename = team .. "." .. category .. "." .. points
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local entry = team .. " " .. category .. " " .. points
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if (comment) then
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entry = entry .. " " .. comment
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end
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local f = io.open(koth.path("state/teams/" .. team))
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if (f) then
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f:close()
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else
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return false, "No such team"
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end
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local ok = koth.anchored_search(koth.path("state/points.log"), entry, " ")
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if (ok) then
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return false, "Points already awarded"
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end
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local f = io.open(koth.path("state/points.new/" .. filename), "a")
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if (not f) then
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return false, "Unable to write to points file"
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end
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f:write(os.time(), " ", entry, "\n")
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f:close()
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return true
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end
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-- Most web servers cd to the directory containing the CGI.
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-- Not uhttpd.
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koth.base = ""
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function koth.path(p)
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return koth.base .. p
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end
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-- Traverse up to find assigned.txt
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for i = 0, 5 do
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local f = io.open(koth.path("state/assigned.txt"))
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if (f) then
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f:close()
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break
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end
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koth.base = koth.base .. "../"
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end
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return koth
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@ -1,34 +0,0 @@
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#! /usr/bin/env lua
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package.path = "?.lua;cgi-bin/?.lua;www/cgi-bin/?.lua"
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local cgi = require "cgi"
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local koth = require "koth"
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local team = cgi.fields['t'] or ""
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local category = cgi.fields['c'] or ""
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local points = cgi.fields['p'] or ""
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local answer = cgi.fields['a'] or ""
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-- Defang category name; prevent directory traversal
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category = category:gsub("[^A-Za-z0-9_]", "-")
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-- Check answer
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local needle = points .. " " .. answer
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local haystack = koth.path("packages/" .. category .. "/answers.txt")
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local found, err = koth.anchored_search(haystack, needle)
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if (not found) then
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koth.page("Wrong answer", err)
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end
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local ok, err = koth.award_points(team, category, points)
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if (not ok) then
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koth.page("Error awarding points",
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"<p>You got the right answer, but there was a problem trying to give you points:</p>" ..
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"<p>" .. err .. "</p>")
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end
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koth.page("Points awarded",
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"<p>" .. points .. " points for " .. team .. "!</p>" ..
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"<p><a href=\"../puzzles.html\">Back to puzzles</a></p>")
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#! /usr/bin/env lua
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package.path = "?.lua;cgi-bin/?.lua;www/cgi-bin/?.lua"
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local cgi = require "cgi"
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local koth = require "koth"
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local team = cgi.fields["n"] or ""
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local hash = cgi.fields["h"] or ""
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hash = hash:match("[0-9a-f]*")
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if ((hash == "") or (team == "")) then
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koth.page("Invalid Entry", "Oops! Are you sure you got that right?")
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elseif (not koth.anchored_search(koth.path("state/assigned.txt"), hash)) then
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koth.page("Invalid Hash", "Oops! I don't have a record of that hash. Did you maybe use capital letters accidentally?")
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end
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local f = io.open(koth.path("state/teams/" .. hash))
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if (f) then
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f:close()
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koth.page("Already Exists", "Your team has already been named! Maybe somebody on your team beat you to it.")
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end
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local f, err = io.open(koth.path("state/teams/" .. hash), "w+")
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if (not f) then
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koth.page("Kersplode", err)
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end
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f:write(team)
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f:close()
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koth.page("Success", "Okay, your team has been named and you may begin using your hash!")
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#! /usr/bin/env lua
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package.path = "?.lua;cgi-bin/?.lua;www/cgi-bin/?.lua"
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local cgi = require "cgi"
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local koth = require "koth"
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local team = cgi.fields['t'] or ""
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local token = cgi.fields['k'] or ""
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-- Check answer
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local needle = token
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local haystack = koth.path("state/tokens.txt")
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local found, err = koth.anchored_search(haystack, needle)
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if (not found) then
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koth.page("Unrecognized token", err)
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end
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local category, points = token:match("^(.*):(.*):")
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if ((category == nil) or (points == nil)) then
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koth.page("Unrecognized token", "Something doesn't look right about that token")
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end
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points = tonumber(points)
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-- Defang category name; prevent directory traversal
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category = category:gsub("[^A-Za-z0-9]", "-")
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local ok, err = koth.award_points(team, category, points, token)
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if (not ok) then
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koth.page("Error awarding points",
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"<p>You entered a valid token, but there was a problem trying to give you points:</p>" ..
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"<p>" .. err .. "</p>")
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end
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koth.page("Points awarded",
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"<p>" .. points .. " points for " .. team .. "!</p>" ..
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"<p><a href=\"../puzzles.html\">Back to puzzles</a></p>")
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