--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/template/loaders/filesystem.py	Wed Jan 20 00:34:04 2010 +0100
@@ -0,0 +1,41 @@
+"""
+Wrapper for loading templates from the filesystem.
+"""
+
+from django.conf import settings
+from django.template import TemplateDoesNotExist
+from django.utils._os import safe_join
+
+def get_template_sources(template_name, template_dirs=None):
+    """
+    Returns the absolute paths to "template_name", when appended to each
+    directory in "template_dirs". Any paths that don't lie inside one of the
+    template dirs are excluded from the result set, for security reasons.
+    """
+    if not template_dirs:
+        template_dirs = settings.TEMPLATE_DIRS
+    for template_dir in template_dirs:
+        try:
+            yield safe_join(template_dir, template_name)
+        except UnicodeDecodeError:
+            # The template dir name was a bytestring that wasn't valid UTF-8.
+            raise
+        except ValueError:
+            # The joined path was located outside of this particular
+            # template_dir (it might be inside another one, so this isn't
+            # fatal).
+            pass
+
+def load_template_source(template_name, template_dirs=None):
+    tried = []
+    for filepath in get_template_sources(template_name, template_dirs):
+        try:
+            return (open(filepath).read().decode(settings.FILE_CHARSET), filepath)
+        except IOError:
+            tried.append(filepath)
+    if tried:
+        error_msg = "Tried %s" % tried
+    else:
+        error_msg = "Your TEMPLATE_DIRS setting is empty. Change it to point to at least one template directory."
+    raise TemplateDoesNotExist, error_msg
+load_template_source.is_usable = True