--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/web/server/html_tools.py	Fri Jun 02 16:49:28 2023 +0200
@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+
+
+# Libervia: a Salut à Toi frontend
+# Copyright (C) 2011-2021 Jérôme Poisson <goffi@goffi.org>
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+def sanitize_html(text):
+    """Sanitize HTML by escaping everything"""
+    # this code comes from official python wiki: http://wiki.python.org/moin/EscapingHtml
+    html_escape_table = {
+        "&": "&amp;",
+        '"': "&quot;",
+        "'": "&apos;",
+        ">": "&gt;",
+        "<": "&lt;",
+    }
+
+    return "".join(html_escape_table.get(c, c) for c in text)
+
+
+def convert_new_lines_to_xhtml(text):
+    return text.replace("\n", "<br/>")