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annotate mod_register_dnsbl_warn/mod_register_dnsbl_warn.lua @ 3866:c0df50ce96f0

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mod_rest: Handle internal http request errors early and then return Skips over attempted parsing of the payload which usually failed since the body is an error string like "connection refused", so this produced useless errors.
author Kim Alvefur <zash@zash.se>
date Sat, 25 Jan 2020 20:22:12 +0100
parents 7fb82481b3db
children 76036fa34055
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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
Kim Alvefur <zash@zash.se>
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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)
Kim Alvefur <zash@zash.se>
parents: 2112
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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
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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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
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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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;
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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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;
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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19 adns.lookup(function (reply)
0890c4860f14 mod_register_dnsbl: Initial commit of module to check users registering against an DNS block list
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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>
parents: 2135
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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);