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Tiny safety net

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This commit is contained in:
Mark Felder 2021-01-26 13:53:59 -06:00
parent a55c6de32b
commit bf15a1c7f3
1 changed files with 6 additions and 2 deletions
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8
lib/pleroma/web/activity_pub/mrf/dns_rbl_policy.ex
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@ -13,7 +13,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.DnsRblPolicy do
# :nameserver is the RBL server we want to query
rblhost = rblconfig[:nameserver]
# We have to query the nameserver's by IP, so look it up if an IP address wasn't
# provided in the config.
# You may want this to be a hostname with round-robin A records for basic load
@ -34,7 +34,11 @@ defmodule Pleroma.Web.ActivityPub.MRF.DnsRblPolicy do
rblzone = rblconfig[:zone] || rblhost
# concatenate the host we're checking with the zone, e.g., "pleroma.host" <> . <> "bl.pleroma.com" <> .
query = (actor_host <> "." <> rblzone <> ".") |> String.to_charlist()
# trim off duplicate trailing period in case it was supplied in the config.
query =
(actor_host <> "." <> rblzone <> ".")
|> String.replace_suffix("..", ".")
|> String.to_charlist()
# Timeout of 1s, retry 1
# We will only be using UDP for queries, so I think if the DNSRBL server is > 500ms away it won't work