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annotate mod_filter_chatstates/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
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1 ---
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2 summary: Drop chat states from messages to inactive sessions
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3 ...
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5 ::: {.alert .alert-info}
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6 This module discards certain kinds of stanzas that are unnecessary to deliver to inactive clients. This is technically against the XMPP specification, and has the potential to cause bugs. However it is being used by some people successfully, and reduces the overall bandwidth usage for mobile devices.
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7 On the other hand it does not save battery usage in a relevant way compared to other `csi` modules.
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8 Consider using [mod_csi_simple][doc:modules:mod_csi_simple] that is incuded in prosody since Version 0.11.
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9 :::
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10
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11 Introduction
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12 ============
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14 Some mobile XMPP client developers consider [Chat State
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15 Notifications](http://xmpp.org/extensions/xep-0085.html) to be a waste
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16 of power and bandwidth, especially when the user is not actively looking
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17 at their device. This module will filter them out while the session is
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18 considered inactive. It depends on [mod\_csi](/mod_csi.html) for
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19 deciding when to begin and end filtering.
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21 Configuration
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22 =============
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24 There is no configuration for this module, just add it to
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25 modules\_enabled as normal.
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27 Compatibility
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28 =============
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30 ----- -------
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31 0.11 Works
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32 0.10 Works
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33 ----- -------