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view mod_sift/README.md @ 6360:3e8bd71d39bb

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mod_http_muc_log: Ignore fallback body next to XEP-0444: Message Reactions Some clients send a quote reply along with XEP-0444 in order to accommodate legacy clients. This however takes up some space and the reaction is shown twice. This is a matter of some debate with diverging opinions about whether this should be done at all and how to handle this.
author Kim Alvefur <zash@zash.se>
date Thu, 15 Jan 2026 16:03:01 +0100
parents fe081789f7b5
children
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---
labels:
- 'Stage-Alpha'
summary: 'XEP-0273: Stanza Interception and Filtering Technology'
...

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

[SIFT][XEP-0273] is a technology to allow clients to filter incoming
traffic on the server. This helps save bandwidth, etc.

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

  ----- -------
  0.7   Works
  ----- -------

Quirks
======

This implementation is a work in progress.

-   Stanzas to full JIDs get sifted correctly
-   Stanzas to bare JIDs are currently allowed/disallowed for all
    resources as a whole, and not for individual resources
-   Presence is only sent to available resources, and probes are not
    sent for unavailable reasources
-   This module currently does not interact with offline messages
    (filtered messages are dropped with an error reply)
-   Not tested with privacy lists