moth/www/cgi-bin/koth.lua

120 lines
2.6 KiB
Lua

#! /usr/bin/env lua
local koth = {}
-- cut -d$ANCHOR -f2- | grep -Fx "$NEEDLE"
function koth.anchored_search(haystack, needle, anchor)
local f, err = io.open(haystack)
if (not f) then
return false, err
end
for line in f:lines() do
if (anchor) then
pos = line:find(anchor)
if (pos) then
line = line:sub(pos+1)
end
end
if (line == needle) then
f:close()
return true
end
end
f:close()
return false
end
function koth.page(title, body)
if (os.getenv("REQUEST_METHOD")) then
print("Content-type: text/html")
print()
end
print("<!DOCTYPE html>")
print("<html><head><title>" .. title .. "</title><link rel=\"stylesheet\" href=\"../../css/style.css\"><meta name=\"viewport\" content=\"width=device-width\"></head>")
print("<body><h1>" .. title .. "</h1>")
if (body) then
print("<section>")
print(body)
print("</section>")
end
print('<nav>')
print('<ul>')
print('<li><a href="../register.html">Register</a></li>')
print('<li><a href="../puzzles.html">Puzzles</a></li>')
print('<li><a href="../scoreboard.html">Scoreboard</a></li>')
print('</ul>')
print('</nav>')
print('<section id="sponsors">')
print('<img src="../images/logo0.png" alt="">')
print('<img src="../images/logo1.png" alt="">')
print('<img src="../images/logo2.png" alt="">')
print('<img src="../images/logo3.png" alt="">')
print('</section>')
print("</body></html>")
os.exit(0)
end
--
-- We're going to rely on `bin/once` only processing files with the right number of lines.
--
function koth.award_points(team, category, points, comment)
team = team:gsub("[^0-9a-f]", "-")
if (team == "") then
team = "-"
end
local filename = team .. "." .. category .. "." .. points
local entry = team .. " " .. category .. " " .. points
if (comment) then
entry = entry .. " " .. comment
end
local f = io.open(koth.path("state/teams/" .. team))
if (f) then
f:close()
else
return false, "No such team"
end
local ok = koth.anchored_search(koth.path("state/points.log"), entry, " ")
if (ok) then
return false, "Points already awarded"
end
local f = io.open(koth.path("state/points.new/" .. filename), "a")
if (not f) then
return false, "Unable to write to points file"
end
f:write(os.time(), " ", entry, "\n")
f:close()
return true
end
-- Most web servers cd to the directory containing the CGI.
-- Not uhttpd.
koth.base = ""
function koth.path(p)
return koth.base .. p
end
-- Traverse up to find assigned.txt
for i = 0, 5 do
local f = io.open(koth.path("state/assigned.txt"))
if (f) then
f:close()
break
end
koth.base = koth.base .. "../"
end
return koth