From 6af49270a9b1ddbdf8836139597b66695d8e1606 Mon Sep 17 00:00:00 2001
From: "Haelwenn (lanodan) Monnier" <contact@hacktivis.me>
Date: Tue, 2 Jan 2024 15:12:33 +0100
Subject: MRF: Log sensible error for subdomains_regex

---
 lib/pleroma/web/activity_pub/mrf.ex | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/pleroma/web/activity_pub/mrf.ex b/lib/pleroma/web/activity_pub/mrf.ex
index 7f6dce925..1071f8e6e 100644
--- a/lib/pleroma/web/activity_pub/mrf.ex
+++ b/lib/pleroma/web/activity_pub/mrf.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2023 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF do
@@ -139,7 +139,16 @@ defmodule Pleroma.Web.ActivityPub.MRF do
 
   @spec subdomains_regex([String.t()]) :: [Regex.t()]
   def subdomains_regex(domains) when is_list(domains) do
-    for domain <- domains, do: ~r(^#{String.replace(domain, "*.", "(.*\\.)*")}$)i
+    for domain <- domains do
+      try do
+        target = String.replace(domain, "*.", "(.*\\.)*")
+        ~r<^#{target}$>i
+      rescue
+        e ->
+          Logger.error("MRF: Invalid subdomain Regex: #{domain}")
+          reraise e, __STACKTRACE__
+      end
+    end
   end
 
   @spec subdomain_match?([Regex.t()], String.t()) :: boolean()
-- 
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