Mercurial > prosody-modules

annotate mod_admin_blocklist/mod_admin_blocklist.lua @ 4920:b9f8dd9a7fdb

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mod_rest/README: Mention the OPTIONS probe fired at the callback ... in passing. Should be documented better. But not this day! This day, I commit features!
author Kim Alvefur <zash@zash.se>
date Sat, 09 Apr 2022 00:37:55 +0200
parents 683d1ad16b56
children 964de9997552
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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