annotate mod_s2s_blacklist/mod_s2s_blacklist.lua @ 5173:460f78654864

mod_muc_rtbl: also filter messages This was a bit tricky because we don't want to run the JIDs through SHA256 on each message. Took a while to come up with this simple plan of just caching the SHA256 of the JIDs on the occupants. This will leave some dirt in the occupants after unloading the module, but that should be ok; once they cycle the room, the hashes will be gone. This is direly needed, otherwise, there is a tight race between the moderation activities and the actors joining the room.
author Jonas Schäfer <jonas@wielicki.name>
date Tue, 21 Feb 2023 21:37:27 +0100
parents d958558e0058
children
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27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
Matthew Wild <mwild1@gmail.com>
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1 local st = require "util.stanza";
27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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2
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Kim Alvefur <zash@zash.se>
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3 local blacklist = module:get_option_inherited_set("s2s_blacklist", {});
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27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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4
27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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5 module:hook("route/remote", function (event)
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6 if blacklist:contains(event.to_host) then
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d958558e0058 mod_s2s_blacklist: Don't send error replies for error stanzas
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7 if event.stanza.attr.type ~= "error" then
d958558e0058 mod_s2s_blacklist: Don't send error replies for error stanzas
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8 module:send(st.error_reply(event.stanza, "cancel", "not-allowed", "Communication with this domain is restricted"));
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9 end
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27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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10 return true;
27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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11 end
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12 end, 100);
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13
27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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14 module:hook("s2s-stream-features", function (event)
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Kim Alvefur <zash@zash.se>
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15 if blacklist:contains(event.origin.from_host) then
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16 event.origin:close({
27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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17 condition = "policy-violation";
27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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18 text = "Communication with this domain is restricted";
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19 });
27b4e01ddbc4 mod_s2s_blacklist: A new _simple_ s2s blacklist module
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20 end
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21 end, 1000);