annotate mod_block_strangers/mod_block_strangers.lua @ 2605:8908d001faf3

mod_firewall: spam-blocking.pfw: Allow groupchat messages and presence to offline full JIDs
author Matthew Wild <mwild1@gmail.com>
date Mon, 06 Mar 2017 15:39:47 +0000
parents 045d594a3707
children 38365c1f1fe4
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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 if to_resource and stanza.attr.type == "groupchat"
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24 or stanza.name == "iq" and (stanza.attr.type == "result" or stanza.attr.type == "error") then
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25 return nil; -- Pass through
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26 end
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252b634b065d mod_block_strangers: Bounce IQ stanzas (they MUST be replied to)
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27 if stanza.name == "iq" and ( stanza.attr.type == "get" or stanza.attr.type == "set" ) then
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28 event.origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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29 end
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30 return true; -- Drop stanza
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31 end
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32 end
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34 module:hook("message/bare", check_subscribed, 200);
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35 module:hook("message/full", check_subscribed, 200);
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36 module:hook("iq/full", check_subscribed, 200);