--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/galaxy/util/validation.py	Sat May 02 07:14:21 2020 -0400
@@ -0,0 +1,38 @@
+""" Module for validation of incoming inputs.
+
+TODO: Refactor BaseController references to similar methods to use this module.
+"""
+from six import string_types
+
+from galaxy import exceptions
+from galaxy.util.sanitize_html import sanitize_html
+
+
+def validate_and_sanitize_basestring(key, val):
+    if not isinstance(val, string_types):
+        raise exceptions.RequestParameterInvalidException('%s must be a string or unicode: %s'
+                                                          % (key, str(type(val))))
+    return sanitize_html(val)
+
+
+def validate_and_sanitize_basestring_list(key, val):
+    try:
+        assert isinstance(val, list)
+        return [sanitize_html(t) for t in val]
+    except (AssertionError, TypeError):
+        raise exceptions.RequestParameterInvalidException('%s must be a list of strings: %s'
+                                                          % (key, str(type(val))))
+
+
+def validate_boolean(key, val):
+    if not isinstance(val, bool):
+        raise exceptions.RequestParameterInvalidException('%s must be a boolean: %s'
+                                                          % (key, str(type(val))))
+    return val
+
+
+# TODO:
+# def validate_integer(self, key, val, min, max):
+# def validate_float(self, key, val, min, max):
+# def validate_number(self, key, val, min, max):
+# def validate_genome_build(self, key, val):