From c2937d9fdd30b1b896caf66851d6677924d07488 Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@sugarlabs.org>
Date: Thu, 12 Aug 2010 17:57:55 +0000
Subject: reorg of module heirarchy

---
(limited to 'TurtleArt/tajail.py')

diff --git a/TurtleArt/tajail.py b/TurtleArt/tajail.py
new file mode 100644
index 0000000..091557b
--- /dev/null
+++ b/TurtleArt/tajail.py
@@ -0,0 +1,69 @@
+#Copyright (c) 2009-10, Walter Bender (on behalf of Sugar Labs)
+
+#Permission is hereby granted, free of charge, to any person obtaining a copy
+#of this software and associated documentation files (the "Software"), to deal
+#in the Software without restriction, including without limitation the rights
+#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+#copies of the Software, and to permit persons to whom the Software is
+#furnished to do so, subject to the following conditions:
+
+#The above copyright notice and this permission notice shall be included in
+#all copies or substantial portions of the Software.
+
+#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+#THE SOFTWARE.
+
+# A naive approach to running myfunc in a jail
+import logging
+_logger = logging.getLogger('turtleart-activity')
+import traceback
+from time import *
+from math import *
+try:
+    from numpy import *
+except ImportError:
+    _logger.error("could not import numpy")
+
+def myfunc(f, args):
+    # check to make sure no import calls are made
+    if len(args) == 1:
+        myf = "def f(x): return " + f.replace("import","")
+        userdefined = {}
+        try:
+            exec myf in globals(), userdefined
+            return userdefined.values()[0](args[0])
+        except:
+            traceback.print_exc()
+            return None
+    elif len(args) == 2:
+        myf = "def f(x,y): return " + f.replace("import","")
+        userdefined = {}
+        try:
+            exec myf in globals(), userdefined
+            return userdefined.values()[0](args[0],args[1])
+        except:
+            traceback.print_exc()
+            return None
+    elif len(args) == 3:
+        myf = "def f(x,y,z): return " + f.replace("import","")
+        userdefined = {}
+        try:
+            exec myf in globals(), userdefined
+            return userdefined.values()[0](args[0],args[1],args[2])
+        except:
+            traceback.print_exc()
+            return None
+
+def myfunc_import(lc, f, x):
+    userdefined = {}
+    try:
+        exec f in globals(), userdefined
+        return userdefined['myblock'](lc, x)
+    except:
+        traceback.print_exc()
+        return None
--
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