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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 73c456d9ec67
children d832a5e10c04
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---
labels:
- 'Stage-Stable'
summary: 'XEP-0288: Bidirectional Server-to-Server Connections'
...

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

This module implements [XEP-0288: Bidirectional Server-to-Server
Connections](http://xmpp.org/extensions/xep-0288.html). It allows
servers to use a single connection for sending stanzas to each other,
instead of two connections (one for stanzas in each direction).

Install and enable it like any other module. It has no configuration.

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

  ------- --------------------------
  trunk   Bidi available natively with [mod_s2s_bidi][doc:modules:mod_s2s_bidi]
  0.11    Works
  0.10    Works
  0.9     Works
  0.8     Works (use the 0.8 repo)
  ------- --------------------------