diff -r 85b071fb75b2 -r eb9188f2ee4f web/ldt/utils/path.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/ldt/utils/path.py	Fri Oct 22 18:14:30 2010 +0200
@@ -0,0 +1,14 @@
+"""
+Some small file related utilities
+"""
+
+import unicodedata
+import string
+
+validFilenameChars = "-_.() %s%s" % (string.ascii_letters, string.digits)
+
+
+def sanitize_filename(filename):
+    cleanedFilename = unicodedata.normalize('NFKD', filename).encode('ASCII', 'ignore').lower()
+    return ''.join(c for c in cleanedFilename if c in validFilenameChars).replace(' ','_')
+    
\ No newline at end of file