view mod_strict_https/README.markdown @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parents 4d73a1a6ba68
children 0c8e6269ea38
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---
labels:
summary: HTTP Strict Transport Security
...

Introduction
============

This module implements [HTTP Strict Transport
Security](https://tools.ietf.org/html/rfc6797) and responds to all
non-HTTPS requests with a `301 Moved Permanently` redirect to the HTTPS
equivalent of the path.

Configuration
=============

Add the module to the `modules_enabled` list and optionally configure
the specific header sent.

    modules_enabled = {
      ...
          "strict_https";
    }
    hsts_header = "max-age=31556952"

Compatibility
=============

  ------- --------------
  trunk   Works
  0.9     Works
  0.8     Doesn't work
  ------- --------------