From f271ea6e432d685c113582e5944d79e12c153016 Mon Sep 17 00:00:00 2001
From: "Haelwenn (lanodan) Monnier" <contact@hacktivis.me>
Date: Sat, 16 Dec 2023 18:22:32 +0100
Subject: [PATCH] Move Plugs.RemoteIP.maybe_add_cidr/1 to
 InetHelper.parse_cidr/1

---
 lib/pleroma/helpers/inet_helper.ex | 11 +++++++++++
 lib/pleroma/web/plugs/remote_ip.ex | 14 ++------------
 2 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/lib/pleroma/helpers/inet_helper.ex b/lib/pleroma/helpers/inet_helper.ex
index 704d37f8a..3500fc679 100644
--- a/lib/pleroma/helpers/inet_helper.ex
+++ b/lib/pleroma/helpers/inet_helper.ex
@@ -16,4 +16,15 @@ defmodule Pleroma.Helpers.InetHelper do
   def parse_address(ip) do
     :inet.parse_address(ip)
   end
+
+  def parse_cidr(proxy) when is_binary(proxy) do
+    proxy =
+      cond do
+        "/" in String.codepoints(proxy) -> proxy
+        InetCidr.v4?(InetCidr.parse_address!(proxy)) -> proxy <> "/32"
+        InetCidr.v6?(InetCidr.parse_address!(proxy)) -> proxy <> "/128"
+      end
+
+    InetCidr.parse(proxy, true)
+  end
 end
diff --git a/lib/pleroma/web/plugs/remote_ip.ex b/lib/pleroma/web/plugs/remote_ip.ex
index f207d9fef..3a4bffb50 100644
--- a/lib/pleroma/web/plugs/remote_ip.ex
+++ b/lib/pleroma/web/plugs/remote_ip.ex
@@ -8,6 +8,7 @@ defmodule Pleroma.Web.Plugs.RemoteIp do
   """
 
   alias Pleroma.Config
+  alias Pleroma.Helpers.InetHelper
   import Plug.Conn
 
   @behaviour Plug
@@ -30,19 +31,8 @@ defmodule Pleroma.Web.Plugs.RemoteIp do
     proxies =
       Config.get([__MODULE__, :proxies], [])
       |> Enum.concat(reserved)
-      |> Enum.map(&maybe_add_cidr/1)
+      |> Enum.map(&InetHelper.parse_cidr/1)
 
     {headers, proxies}
   end
-
-  defp maybe_add_cidr(proxy) when is_binary(proxy) do
-    proxy =
-      cond do
-        "/" in String.codepoints(proxy) -> proxy
-        InetCidr.v4?(InetCidr.parse_address!(proxy)) -> proxy <> "/32"
-        InetCidr.v6?(InetCidr.parse_address!(proxy)) -> proxy <> "/128"
-      end
-
-    InetCidr.parse(proxy, true)
-  end
 end