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annotate mod_groups_shell/mod_groups_shell.lua @ 4651:8231774f5bfd

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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>
date Sun, 22 Aug 2021 13:22:59 +0200
parents 8b69e0b56db2
children
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1 module:set_global()
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2
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3 local modulemanager = require "core.modulemanager";
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4
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5 local shell_env = module:shared("/*/admin_shell/env")
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6
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7 shell_env.groups = {};
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8
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9 function shell_env.groups:sync_group(host, group_id)
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10 local print = self.session.print;
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11
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12 if not host then
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13 return false, "host not given"
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14 end
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16 local mod_groups = modulemanager.get_module(host, "groups_internal")
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17 if not mod_groups then
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18 return false, host .. " does not have mod_groups_internal loaded"
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19 end
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20
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21 if not group_id then
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22 return false, "group id not given"
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23 end
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25 local ok, err = mod_groups.emit_member_events(group_id)
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26 if ok then
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27 return true, "Synchronised members"
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28 else
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29 return ok, err
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30 end
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31 end