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annotate mod_block_registrations/mod_block_registrations.lua @ 3965:2b10e51d85a6

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mod_muc_limits: Add config option to limit to join stanzas only This is a bit more limited in pre-0.11 MUC modules, because it just detects stanzas sent to full JIDs (which would include all presence and nick changes). This option is useful for setups where users are typically unaffiliated, but trusted (e.g. if access to the room is gated through some other means such as password/token auth).
author Matthew Wild <mwild1@gmail.com>
date Fri, 03 Apr 2020 12:26:56 +0100
parents 27aa58ed3e2e
children 368bf9b06484
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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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4 local block_users = module:get_option_set("block_registrations_users", { "admin" });
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5 local block_patterns = module:get_option_set("block_registrations_matching", {});
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6 local require_pattern = module:get_option_string("block_registrations_require");
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7
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8 function is_blocked(username)
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9 -- Check if the username is simply blocked
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10 if block_users:contains(username) then return true; end
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11
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12 for pattern in block_patterns do
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27aa58ed3e2e mod_block_registrations: string.find is faster than string.match when only needing a boolean answer
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13 if username:find(pattern) then
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14 return true;
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15 end
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16 end
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17 -- Not blocked, but check that username matches allowed pattern
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18 if require_pattern and not username:match(require_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
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23 module:hook("user-registering", function(event)
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24 local username = event.username;
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25 if is_blocked(username) then
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26 event.allowed = false;
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27 return true;
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28 end
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29 end, 10);