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annotate mod_block_registrations/mod_block_registrations.lua @ 5895:095030677ae6

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mod_http_admin_api: Support storing free-form text note with invitations
author Matthew Wild <mwild1@gmail.com>
date Mon, 29 Apr 2024 17:49:19 +0100
parents 368bf9b06484
children
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cabbcc1997d9 mod_block_registrations: Allow restricting registrations of certain user accounts, and/or ensure that registered accounts conform to a given pattern
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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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368bf9b06484 mod_block_registrations: Expand default list of blocked usernames (RFC 2142)
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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);