annotate mod_block_s2s_subscriptions/mod_block_s2s_subscriptions.lua @ 5296:0f5657db1cfc

mod_isolate_host: handle server-generated stanzas The hook for setting the no_host_isolation is only called for c2s sessions. This does not work for stanzas generated by the server, such as PEP notifications or presence probe answers. To handle that, we do per-stanza checks for the case that the origin is local.
author Jonas Schäfer <jonas@wielicki.name>
date Sat, 01 Apr 2023 12:03:08 +0200
parents 70ff25db37fa
children
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2 local jid_split = require "util.jid".split;
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3 local jid_bare = require "util.jid".bare;
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4 local load_roster = require "core.rostermanager".load_roster;
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6 local blocked_servers = module:get_option_set("block_s2s_subscriptions")._items;
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8 function filter_presence(event)
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9 if blocked_servers[event.origin.from_host] and event.stanza.attr.type == "subscribe" then
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10 local stanza = event.stanza;
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11 local to_user, to_host = jid_split(stanza.attr.to);
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12 local roster = load_roster(to_user, to_host);
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13 if roster and roster[jid_bare(stanza.attr.from)] then
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14 return; -- In roster, pass through
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15 end
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16 return true; -- Drop
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17 end
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18 end
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20 module:hook("presence/bare", filter_presence, 200); -- Client receiving