annotate mod_block_strangers/mod_block_strangers.lua @ 5186:fa3059e653fa

mod_http_oauth2: Implement the Implicit flow Everyone says this is insecure and bad, but it's also the only thing that makes sense for e.g. pure JavaScript clients, but hey implement this even more complicated thing instead!
author Kim Alvefur <zash@zash.se>
date Thu, 02 Mar 2023 22:06:50 +0100
parents 38365c1f1fe4
children
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1
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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);