Mercurial > prosody-modules

annotate mod_block_registrations/mod_block_registrations.lua @ 5256:44f7edd4f845

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mod_http_oauth2: Reject non-local hosts in more code paths We're not issuing tokens for users on remote hosts, we can't even authenticate them since they're remote. Thus the host is always the local module.host so no need to pass around the host in most cases or use it for anything but enforcing the same host.
author Kim Alvefur <zash@zash.se>
date Thu, 16 Mar 2023 17:52:10 +0100
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);