1 files changed, 9 insertions, 0 deletions

diff --git a/nbxmpp/const.py b/nbxmpp/const.py
index 4904e66..d37ba64 100644
--- a/nbxmpp/const.py
+++ b/nbxmpp/const.py
@@ -652,3 +652,12 @@ GIO_TLS_ERRORS = {
     Gio.TlsCertificateFlags.EXPIRED: 'The certificate has expired',
 }
 # pylint: enable=line-too-long
+
+NOT_ALLOWED_XML_CHARS = {
+    '&': '&',
+    '<': '&lt;',
+    '>': '&gt;',
+    '"': '&quot;',
+    '\x0C': '',
+    '\x1B': ''
+}