Mercurial > prosody-modules
annotate mod_muc_config_restrict/mod_muc_config_restrict.lua @ 4651:8231774f5bfd
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> |
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date | Sun, 22 Aug 2021 13:22:59 +0200 |
parents | ed7431fd3b47 |
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rev | line source |
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1014
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mod_muc_config_restrict: Allow restricting specific options in the MUC config form to service admins
Matthew Wild <mwild1@gmail.com>
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1 local is_admin = require "core.usermanager".is_admin; |
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2 local t_remove = table.remove; |
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3 |
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4 local restricted_options = module:get_option_set("muc_config_restricted", {})._items; |
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5 |
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6 function handle_config_submit(event) |
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7 local stanza = event.stanza; |
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8 if is_admin(stanza.attr.from, module.host) then return; end -- Don't restrict admins |
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9 local fields = event.fields; |
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10 for option in restricted_options do |
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11 fields[option] = nil; -- Like it was never there |
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12 end |
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13 end |
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14 |
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15 function handle_config_request(event) |
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16 if is_admin(event.actor, module.host) then return; end -- Don't restrict admins |
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17 local form = event.form; |
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18 for i = #form, 1, -1 do |
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19 if restricted_options[form[i].name] then |
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20 t_remove(form, i); |
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21 end |
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22 end |
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23 end |
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24 |
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25 module:hook("muc-config-submitted", handle_config_submit); |
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26 module:hook("muc-config-form", handle_config_request); |