annotate mod_register_dnsbl_warn/mod_register_dnsbl_warn.lua @ 3772:22f02716819f

mod_s2s_keepalive: Isolate source host of pings The incoming_s2s table is not restricted to the current virtualhost so this prevents opening more connections than what's needed. Also prevents useless double sending of one whitespace per local host.
author Kim Alvefur <zash@zash.se>
date Mon, 23 Dec 2019 01:18:02 +0100
parents 7fb82481b3db
children 76036fa34055
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
Kim Alvefur <zash@zash.se>
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1 local adns = require "net.adns";
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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2 local rbl = module:get_option_string("registration_rbl");
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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3
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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4 local function reverse(ip, suffix)
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42b095dab626 mod_register_dnsbl: Fix matching pattern (Thanks Ge0rG)
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5 local a,b,c,d = ip:match("^(%d+).(%d+).(%d+).(%d+)$");
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0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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6 if not a then return end
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7 return ("%d.%d.%d.%d.%s"):format(d,c,b,a, suffix);
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8 end
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9
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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10 -- TODO async
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11 -- module:hook("user-registering", function (event) end);
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0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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13 module:hook("user-registered", function (event)
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14 local session = event.session;
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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15 local ip = session and session.ip;
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16 local rbl_ip = ip and reverse(ip, rbl);
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17 if rbl_ip then
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18 local log = session.log;
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19 adns.lookup(function (reply)
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20 if reply and reply[1] then
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2dcc3079572c mod_register_dnsbl: Include more information in log message
Kim Alvefur <zash@zash.se>
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21 log("warn", "Account %s@%s registered from IP %s found in RBL (%s)", event.username, event.host or module.host, ip, reply[1].a);
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22 end
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23 end, rbl_ip);
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24 end
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25 end);