From bf995029babeca5bb9486b977eda0e1759ea7892 Mon Sep 17 00:00:00 2001
From: kikito <kikito@gmail.com>
Date: Sat, 14 Sep 2013 12:54:49 +0200
Subject: [PATCH] passing false as a quota deactivates the hooks

---
 sandbox.lua           | 17 ++++++++++++-----
 spec/sandbox_spec.lua |  4 ++++
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/sandbox.lua b/sandbox.lua
index ff0a8d4..b138db7 100644
--- a/sandbox.lua
+++ b/sandbox.lua
@@ -120,19 +120,26 @@ function sandbox.protect(f, options)
 
   options = options or {}
 
-  local quota = options.quota or 500000
+  local quota = false
+  if options.quota ~= false then
+    quota = options.quota or 500000
+  end
+
   local env   = merge(options.env or {}, BASE_ENV)
   env._G = env._G or env
 
   setfenv(f, env)
 
   return function(...)
-    local timeout = function()
-      cleanup()
-      error('Quota exceeded: ' .. tostring(quota))
+
+    if quota then
+      local timeout = function()
+        cleanup()
+        error('Quota exceeded: ' .. tostring(quota))
+      end
+      sethook(timeout, "", quota)
     end
 
-    sethook(timeout, "", quota)
     string.rep = nil
 
     local ok, result = pcall(f, ...)
diff --git a/spec/sandbox_spec.lua b/spec/sandbox_spec.lua
index e81e819..7191ed5 100644
--- a/spec/sandbox_spec.lua
+++ b/spec/sandbox_spec.lua
@@ -83,6 +83,10 @@ describe('sandbox.run', function()
       assert_error(function() sandbox.run("for i=1,100 do end", {quota = 20}) end)
     end)
 
+    it('does not use quotes if the quote param is false', function()
+      assert_not_error(function() sandbox.run("for i=1,1000000 do end", {quota = false}) end)
+    end)
+
   end)