1 files changed, 51 insertions, 0 deletions
diff --git a/src/plugins/factoids/sandbox.lua b/src/plugins/factoids/sandbox.lua
new file mode 100644
index 0000000..3fde65e
--- /dev/null
+++ b/src/plugins/factoids/sandbox.lua
@@ -0,0 +1,51 @@
+function send(text)
+  local text = tostring(text)
+  local len = #output
+  if len < 1 then
+    output = { text }
+  else
+    output[len] = output[len] .. text
+  end
+end
+
+function sendln(text)
+  send(text)
+  table.insert(output, "")
+end
+
+local env = { print = send,
+              println = sendln,
+              args = args,
+              input = input,
+              user = user,
+              channel = channel,
+              request = download,
+              pairs = pairs,
+              table = table,
+              string = string,
+              tostring = tostring,
+              tonumber = tonumber,
+              math = math }
+
+local f, e = load(factoid, nil, nil, env)
+
+-- Check if the factoid timed out
+function checktime(event, line)
+    if os.time() - time >= timeout then
+        error("Timed out after " .. timeout .. " seconds", 0)
+    else
+        -- Limit the cpu usage of factoids
+        sleep(1)
+    end
+end
+
+-- Add timeout hook
+time = os.time()
+timeout = 30
+debug.sethook(checktime, "l")
+
+if f then
+  f()
+else
+  error(e)
+end