1 files changed, 25 insertions, 0 deletions
diff --git a/password_validation.py b/password_validation.py
new file mode 100644
index 0000000..8669250
--- /dev/null
+++ b/password_validation.py
@@ -0,0 +1,25 @@
+from django.core.exceptions import ValidationError
+from django.utils.translation import ugettext as _
+
+import re
+
+class ComplexityValidator(object):
+    def validate(self, password, user=None):
+        score = 0
+        if re.search('[0-9]', password):
+            score += 1
+        if password.lower() != password:
+            score += 1
+        if re.search('[^a-zA-Z0-9]', password):
+            score += 1
+
+        if score < 2:
+            raise ValidationError(
+                _("This password does not contain at least two of: upper/lowercase characters; a number; a special (non-alphanumeric) character."),
+                code='password_too_simple'
+            )
+
+    def get_help_text(self):
+        return _(
+            "Your password must contain at least two of: upper/lowercase characters; a number; a special (non-alphanumeric) character"
+        )