view libervia/web/server/html_tools.py @ 1598:86c7a3a625d5

server: always start a new session on connection: The session was kept when a user was connecting from service profile (but not from other profiles), this was leading to session fixation vulnerability (an attacker on the same machine could get service profile session cookie, and use it when a victim would log-in). This patch fixes it by always starting a new session on connection. fix 443
author Goffi <goffi@goffi.org>
date Fri, 23 Feb 2024 13:35:24 +0100
parents eb00d593801d
children
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#!/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/>")