From 4d904bc673fe72a448d357f817582dd236d86d1a Mon Sep 17 00:00:00 2001
From: Laura Hausmann <laura@hausmann.dev>
Date: Sun, 5 Jan 2025 04:32:50 +0100
Subject: [PATCH] [backend/federation] Fix compatibility with AP servers that
 send <br> without a trailing newline character

---
 .../Core/Helpers/LibMfm/Conversion/MfmConverter.cs              | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Iceshrimp.Backend/Core/Helpers/LibMfm/Conversion/MfmConverter.cs b/Iceshrimp.Backend/Core/Helpers/LibMfm/Conversion/MfmConverter.cs
index ca19e875..9a2a1e0a 100644
--- a/Iceshrimp.Backend/Core/Helpers/LibMfm/Conversion/MfmConverter.cs
+++ b/Iceshrimp.Backend/Core/Helpers/LibMfm/Conversion/MfmConverter.cs
@@ -53,7 +53,7 @@ public class MfmConverter(
 		if (html == null) return new HtmlMfmData("", media);
 
 		// Ensure compatibility with AP servers that send both <br> as well as newlines
-		var regex = new Regex(@"<br\s?\/?>\r?\n", RegexOptions.IgnoreCase);
+		var regex = new Regex(@"<br\s?\/?>(?:\r?\n)?", RegexOptions.IgnoreCase);
 		html = regex.Replace(html, "\n");
 
 		// Ensure compatibility with AP servers that send non-breaking space characters instead of regular spaces