# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1735732099 0
# Node ID 5a0e47ad7d6bd16959d6dd0bba52d9d84212a9df
# Parent  64b4ede37da196b5abaf14fafdc0380761eb1027
mod_anti_spam: Gracefully handle failure to parse CIDR in IP RTBL

This should prevent a traceback in case the IP address in the RTBL cannot be
parsed (either due to a malformed address being published, or due to a bug in
our parsing code).

diff -r 64b4ede37da1 -r 5a0e47ad7d6b mod_anti_spam/mod_anti_spam.lua
--- a/mod_anti_spam/mod_anti_spam.lua	Wed Jan 01 09:57:31 2025 +0000
+++ b/mod_anti_spam/mod_anti_spam.lua	Wed Jan 01 11:48:19 2025 +0000
@@ -125,10 +125,18 @@
 	});
 	new_rtbl_subscription(rtbl_service_jid, "spam_source_ips", {
 		added = function (item)
-			spam_source_ips:add_subnet(ip.parse_cidr(item));
+			local subnet_ip, subnet_bits = ip.parse_cidr(item);
+			if not subnet_ip then
+				return;
+			end
+			spam_source_ips:add_subnet(subnet_ip, subnet_bits);
 		end;
 		removed = function (item)
-			spam_source_ips:remove_subnet(ip.parse_cidr(item));
+			local subnet_ip, subnet_bits = ip.parse_cidr(item);
+			if not subnet_ip then
+				return;
+			end
+			spam_source_ips:remove_subnet(subnet_ip, subnet_bits);
 		end;
 	});
 	new_rtbl_subscription(rtbl_service_jid, "spam_source_jids_sha256", {