Mercurial > prosody-modules
annotate mod_muc_limits/README.md @ 6258:06fbbd45ba75
mod_cloud_notify: Readme: fix links and labels that were removed in the last commit
diff --git a/mod_cloud_notify/README.md b/mod_cloud_notify/README.md
--- a/mod_cloud_notify/README.md
+++ b/mod_cloud_notify/README.md
@@ -1,3 +1,9 @@
+----
+-labels:
+-- 'Stage-Beta'
+-summary: 'XEP-0357: Cloud push notifications'
+----
+
# Introduction
This module enables support for sending "push notifications" to clients
@@ -32,15 +38,15 @@ notification to your device. When your d
it will display it or wake up the app so it can connect to XMPP and
receive any pending messages.
-This protocol is described for developers in \[XEP-0357: Push
-Notifications\].
+This protocol is described for developers in [XEP-0357: Push
+Notifications].
-For this module to work reliably, you must have \[mod_smacks\],
-\[mod_mam\] and \[mod_carbons\] also enabled on your server.
+For this module to work reliably, you must have [mod_smacks],
+[mod_mam] and [mod_carbons] also enabled on your server.
Some clients, notably Siskin and Snikket iOS need some additional
extensions that are not currently defined in a standard XEP. To support
-these clients, see \[mod_cloud_notify_extensions\].
+these clients, see [mod_cloud_notify_extensions].
# Configuration
@@ -58,18 +64,18 @@ these clients, see \[mod_cloud_notify_ex
# Internal design notes
App servers are notified about offline messages, messages stored by
-\[mod_mam\] or messages waiting in the smacks queue. The business rules
+[mod_mam] or messages waiting in the smacks queue. The business rules
outlined
[here](//mail.jabber.org/pipermail/standards/2016-February/030925.html)
are all honored[^2].
-To cooperate with \[mod_smacks\] this module consumes some events:
+To cooperate with [mod_smacks] this module consumes some events:
`smacks-ack-delayed`, `smacks-hibernation-start` and
`smacks-hibernation-end`. These events allow this module to send out
notifications for messages received while the session is hibernated by
-\[mod_smacks\] or even when smacks acknowledgements for messages are
+[mod_smacks] or even when smacks acknowledgements for messages are
delayed by a certain amount of seconds configurable with the
-\[mod_smacks\] setting `smacks_max_ack_delay`.
+[mod_smacks] setting `smacks_max_ack_delay`.
The `smacks_max_ack_delay` setting allows to send out notifications to
clients which aren't already in smacks hibernation state (because the
| author | Menel <menel@snikket.de> |
|---|---|
| date | Fri, 13 Jun 2025 10:44:37 +0200 |
| parents | 0206d32c56b7 |
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| rev | line source |
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1 --- |
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2 labels: |
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3 - 'Stage-Beta' |
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4 summary: 'Impose rate-limits on a MUC' |
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5 ... |
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7 Introduction |
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8 ============ |
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10 This module allows you to control the maximum rate of 'events' in a MUC |
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11 room. This makes it useful to prevent room floods (whether malicious or |
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12 accidental). |
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14 Details |
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15 ======= |
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| 17 This module limits the following events: | |
| 18 | |
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19 - Room joins |
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20 - Nick changes |
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21 - Status changes |
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22 - Messages (including private messages) |
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24 The limit is for the room as a whole, not individual occupants in the |
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25 room. Users with an affiliation (members, admins and owners) are not |
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26 limited. |
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28 Configuration |
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29 ============= |
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30 |
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31 Add the module to the MUC host (not the global modules\_enabled): |
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32 |
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33 ```lua |
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34 Component "conference.example.com" "muc" |
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35 modules_enabled = { "muc_limits" } |
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36 ``` |
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| 38 You can define (globally or per-MUC component) the following options: | |
| 39 | |
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40 Name Default value Description |
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41 --------------------------- --------------- ---------------------------------------------------------- |
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42 muc_event_rate 0.5 The maximum number of events per second. |
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43 muc_burst_factor 6 Allow temporary bursts of this multiple. |
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44 muc_max_nick_length 23 The maximum allowed length of user nicknames |
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45 muc_max_char_count 5664 The maximum allowed number of bytes in a message |
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46 muc_max_line_count 23 The maximum allowed number of lines in a message |
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47 muc_limit_base_cost 1 Base cost of sending a stanza |
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48 muc_line_count_multiplier 0.1 Additional cost of each newline in the body of a message |
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49 |
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50 For more understanding of how these values are used, see the algorithm |
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51 section below. |
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53 Algorithm |
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54 ========= |
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56 A certain number of events are allowed per second, given by |
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57 muc\_event\_rate. An event rate of 1 allows one event per second, and |
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58 event rate of 3 allows three events per second, and 0.5 allows one event |
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59 every two seconds, and so on. |
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61 Obviously MUC conversations are not exactly steady streams of events. |
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62 Sometimes multiple people will talk at once. This is handled by the |
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63 muc\_burst\_factor option. |
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65 A burst factor of 2 will allow 2 times as many events at once, for 2 |
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66 seconds, before throttling will be triggered. A factor of 5, 5 times as |
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67 many events for 5 seconds. |
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69 When the limit is reached, an error response will be generated telling |
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70 the user the MUC is overactive, and asking them to try again. |
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72 Compatibility |
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73 ============= |
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75 ------- ------- |
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76 trunk* Works |
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77 0.12 Works |
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78 ------- ------- |
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79 |
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80 *as of 2024-10-22 |
