Mercurial > prosody-modules

annotate mod_block_registrations/mod_block_registrations.lua @ 5366:db4c66a1d24b

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mod_http_oauth2: Fill in some client metadata defaults Explicit > Implicit Maybe we should actually use these for something as well? :) It's is somewhat an open question of how strictly we should enforce things in the client metadata given that it is somewhat extensible. Especially some of these enum fields which have corresponding IANA registries.
author Kim Alvefur <zash@zash.se>
date Tue, 25 Apr 2023 18:09:08 +0200
parents 368bf9b06484
children
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1 local st = require "util.stanza";
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2 local nodeprep = require "util.encodings".stringprep.nodeprep;
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3
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4 local block_users = module:get_option_set("block_registrations_users", {
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5 "abuse", "admin", "administrator", "hostmaster", "info", "news",
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6 "noc", "operator", "owner", "postmaster", "register", "registration",
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7 "root", "security", "service", "signup", "support", "sysadmin",
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8 "sysop", "system", "test", "trouble", "webmaster", "www", "xmpp",
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9 });
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10 local block_patterns = module:get_option_set("block_registrations_matching", {});
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11 local require_pattern = module:get_option_string("block_registrations_require");
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12
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13 function is_blocked(username)
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14 -- Check if the username is simply blocked
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15 if block_users:contains(username) then return true; end
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17 for pattern in block_patterns do
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18 if username:find(pattern) then
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19 return true;
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20 end
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21 end
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22 -- Not blocked, but check that username matches allowed pattern
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23 if require_pattern and not username:match(require_pattern) then
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24 return true;
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25 end
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26 end
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27
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28 module:hook("user-registering", function(event)
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29 local username = event.username;
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30 if is_blocked(username) then
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31 event.allowed = false;
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32 return true;
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33 end
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34 end, 10);