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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 b105c4425359
children 89226fb1af67
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---
labels:
- 'Stage-Unmaintained'
summary: 'Replacement for mod\_vcard with vcard4 support and PEP integration'
---

::: {.alert .alert-warning}
[mod\_vcard\_legacy][doc:modules:mod_vcard_legacy] and
[mod\_vcard4][doc:modules:mod_vcard4] included with Prosody 0.11.x
provide equivalent functionality.
:::

# Introduction

This module was an experimental replacement for [mod\_vcard]. In addition to
the ageing protocol defined by [XEP-0054], it also supports the [new
vCard 4 based protocol][xep0292] and integrates with [Personal
Eventing Protocol][xep0163].

Also supports [XEP-0398: User Avatar to vCard-Based Avatars Conversion].

The vCard 4, [User Avatar][xep0084] and [User Nickname][xep0172]
PEP nodes are updated when the vCard is changed..

# Configuration

    modules_enabled = {
        -- "vcard";  -- This module must be removed

        "profile";
    }

# Compatibility

Requires Prosody **trunk** as of 2014-05-29. Won't work in 0.10.x.

It depends on the trunk version of [mod\_pep][doc:modules:mod_pep] for PEP support, 
previously known as [mod\_pep\_plus][doc:modules:mod_pep_plus].