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mod_muc_limits/README.md @ 6110:1a6cd0bbb7ab

mod_compliance_2023: Add 2023 Version of the compliance module, basis is the 2021 Version. diff --git a/mod_compliance_2023/README.md b/mod_compliance_2023/README.md new file mode 100644 --- /dev/null +++ b/mod_compliance_2023/README.md @@ -0,0 +1,22 @@ +--- +summary: XMPP Compliance Suites 2023 self-test +labels: +- Stage-Beta +rockspec: + dependencies: + - mod_cloud_notify + +... + +Compare the list of enabled modules with +[XEP-0479: XMPP Compliance Suites 2023] and produce basic report to the +Prosody log file. + +If installed with the Prosody plugin installer then all modules needed for a green checkmark should be included. (With prosody 0.12 only [mod_cloud_notify] is not included with prosody and we need the community module) + +# Compatibility + + Prosody-Version Status + --------------- ---------------------- + trunk Works as of 2024-12-21 + 0.12 Works diff --git a/mod_compliance_2023/mod_compliance_2023.lua b/mod_compliance_2023/mod_compliance_2023.lua new file mode 100644 --- /dev/null +++ b/mod_compliance_2023/mod_compliance_2023.lua @@ -0,0 +1,79 @@ +-- Copyright (c) 2021 Kim Alvefur +-- +-- This module is MIT licensed. + +local hostmanager = require "core.hostmanager"; + +local array = require "util.array"; +local set = require "util.set"; + +local modules_enabled = module:get_option_inherited_set("modules_enabled"); + +for host in pairs(hostmanager.get_children(module.host)) do + local component = module:context(host):get_option_string("component_module"); + if component then + modules_enabled:add(component); + modules_enabled:include(module:context(host):get_option_set("modules_enabled", {})); + end +end + +local function check(suggested, alternate, ...) + if set.intersection(modules_enabled, set.new({suggested; alternate; ...})):empty() then return suggested; end + return false; +end + +local compliance = { + array {"Server"; check("tls"); check("disco")}; + + array {"Advanced Server"; check("pep", "pep_simple")}; + + array {"Web"; check("bosh"); check("websocket")}; + + -- No Server requirements for Advanced Web + + array {"IM"; check("vcard_legacy", "vcard"); check("carbons"); check("http_file_share", "http_upload")}; + + array { + "Advanced IM"; + check("vcard_legacy", "vcard"); + check("blocklist"); + check("muc"); + check("private"); + check("smacks"); + check("mam"); + check("bookmarks"); + }; + + array {"Mobile"; check("smacks"); check("csi_simple", "csi_battery_saver")}; + + array {"Advanced Mobile"; check("cloud_notify")}; + + array {"A/V Calling"; check("turn_external", "external_services", "turncredentials", "extdisco")}; + +}; + +function check_compliance() + local compliant = true; + for _, suite in ipairs(compliance) do + local section = suite:pop(1); + if module:get_option_boolean("compliance_" .. section:lower():gsub("%A", "_"), true) then + local missing = set.new(suite:filter(function(m) return type(m) == "string" end):map(function(m) return "mod_" .. m end)); + if suite[1] then + if compliant then + compliant = false; + module:log("warn", "Missing some modules for XMPP Compliance 2023"); + end + module:log("info", "%s Compliance: %s", section, missing); + end + end + end + + if compliant then module:log("info", "XMPP Compliance 2023: Compliant ✔️"); end +end + +if prosody.start_time then + check_compliance() +else + module:hook_global("server-started", check_compliance); +end +
author Menel <menel@snikket.de>
date Sun, 22 Dec 2024 16:06:28 +0100
parent 6012:0206d32c56b7
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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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9
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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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16
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17 This module limits the following events:
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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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23
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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:
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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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50 For more understanding of how these values are used, see the algorithm
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51 section below.
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52
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53 Algorithm
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54 =========
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55
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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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64
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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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80 *as of 2024-10-22