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Add timeout to DNS Resolver #2

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merged 1 commit into from
Jan 28, 2024
Merged

Add timeout to DNS Resolver #2

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11 changes: 6 additions & 5 deletions index.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,9 @@
// dns-lists plugin

const dns = require('dns').promises;
const net = require('net');
const net_utils = require('haraka-net-utils');
const dnsPromises = require('dns').promises;
const dns = new dnsPromises.Resolver({timeout: 25000, tries: 1});

exports.disable_allowed = false;
let redis_client;
Expand Down Expand Up @@ -184,9 +185,9 @@ exports.lookup = async function (ip, zone) {
catch (err) {
this.stats_incr_zone(err, zone, start); // Statistics

if (err.code === dns.NOTFOUND) return; // unlisted, not an error
if (err.code === dnsPromises.NOTFOUND) return; // unlisted, not an error

if (err.code === dns.TIMEOUT) { // list timed out
if (err.code === dnsPromises.TIMEOUT) { // list timed out
this.disable_zone(zone, err.code); // disable it
return
}
Expand Down Expand Up @@ -313,9 +314,9 @@ exports.checkZoneNegative = async function (zone, ip) {
}
catch (err) {
switch (err.code) {
case dns.NOTFOUND: // IP not listed
case dnsPromises.NOTFOUND: // IP not listed
return true
case dns.TIMEOUT: // list timed out
case dnsPromises.TIMEOUT: // list timed out
this.disable_zone(zone, err.code)
}
console.error(`${query} -> got err ${err}`)
Expand Down
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