prosody-modules
8bfcedd93a72
mod_block_strangers/mod_block_strangers.lua

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mod_block_strangers/mod_block_strangers.lua @ 5551:8bfcedd93a72

mod_rest: List all error conditions in OpenAPI spec These are not handled by datamanager but by util.stanza and util.error, so they are not represented in the JSON schema file.
author Kim Alvefur <zash@zash.se>
date Sat, 17 Jun 2023 16:26:33 +0200
parent 3023:38365c1f1fe4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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954532e273be mod_block_strangers: Module to block message and iqs from people not on your roster
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1
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82834df1dea6 mod_block_strangers: Add missing import of util.stanza
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2 local st = require"util.stanza";
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3 local jid_split = require "util.jid".split;
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4 local jid_bare = require "util.jid".bare;
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5 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed;
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6 local full_sessions = prosody.full_sessions;
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7
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8 local function has_directed_presence(user, jid)
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9 local session = full_sessions[user];
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10 if session then
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11 local directed = session.directed;
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12 if directed then
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13 return directed[jid];
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14 end
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15 end
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16 end
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18 function check_subscribed(event)
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19 local stanza = event.stanza;
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20 local to_user, to_host, to_resource = jid_split(stanza.attr.to);
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21 local from_jid = jid_bare(stanza.attr.from);
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22 if to_user and not has_directed_presence(stanza.attr.to, from_jid) and not is_contact_subscribed(to_user, to_host, from_jid) then
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23 -- Allow all messages from your own jid
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24 if from_jid == to_user.."@"..to_host then
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25 return nil; -- Pass through
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26 end
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27 if to_resource and stanza.attr.type == "groupchat"
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28 or stanza.name == "iq" and (stanza.attr.type == "result" or stanza.attr.type == "error") then
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29 return nil; -- Pass through
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30 end
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31 if stanza.name == "iq" and ( stanza.attr.type == "get" or stanza.attr.type == "set" ) then
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32 event.origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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33 end
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34 return true; -- Drop stanza
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35 end
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36 end
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37
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38 module:hook("message/bare", check_subscribed, 200);
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39 module:hook("message/full", check_subscribed, 200);
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40 module:hook("iq/full", check_subscribed, 200);