annotate mod_admin_blocklist/mod_admin_blocklist.lua @ 4813:0a257d1402c3

mod_muc_rtbl: Optimize case with zero hashes On the assumption that during quiet times between torrents of spam, the hash set would be empty. There would be no point in doing the operations and hashes to check for a match in that case.
author Kim Alvefur <zash@zash.se>
date Mon, 06 Dec 2021 18:19:19 +0100
parents 683d1ad16b56
children 964de9997552
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 -- mod_admin_blocklist
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2 --
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3 -- If a local admin has blocked a domain, don't allow s2s to that domain
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4 --
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5 -- Copyright (C) 2015-2021 Kim Alvefur
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6 --
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7 -- This file is MIT/X11 licensed.
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8 --
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10 module:depends("blocklist");
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12 local st = require"util.stanza";
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13 local jid_split = require"util.jid".split;
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15 local usermanager = require "core.usermanager";
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17 local admins;
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18 if usermanager.get_jids_with_role then
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19 local set = require "util.set";
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20 admins = set.new(usermanager.get_jids_with_role("prosody:admin"), module.host);
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21 else -- COMPAT w/pre-0.12
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22 admins = module:get_option_inherited_set("admins", {});
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23 end
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24 admins = admins /
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25 function (admin) -- Filter out non-local admins
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26 local user, host = jid_split(admin);
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27 if host == module.host then return user; end
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28 end
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30 local blocklists = module:open_store("blocklist");
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32 local function is_blocked(host)
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33 for admin in admins do
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34 local blocklist = blocklists:get(admin);
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35 if blocklist and blocklist[host] then
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36 return true;
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37 end
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38 end
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39 end
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41 module:hook("route/remote", function (event)
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42 local origin, stanza = event.origin, event.stanza;
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43 if is_blocked(event.to_host) then
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44 if origin and stanza then
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45 origin.send(st.error_reply(stanza, "cancel", "not-allowed", "Communication with this domain is not allowed"));
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46 return true;
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47 end
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48 return false;
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49 end
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50 end, -9);
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53 module:hook("s2s-stream-features", function (event)
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54 local session = event.origin;
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55 if is_blocked(session.from_host) then
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56 session:close("policy-violation");
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57 return false;
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58 end
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59 end, 1000);
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61 module:hook("stanza/http://etherx.jabber.org/streams:features", function (event)
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62 local session = event.origin;
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63 if is_blocked(session.to_host) then
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64 session:close("policy-violation");
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65 return true;
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66 end
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67 end, 1000);
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68