From 33be7479327609700f135bccd1615178d192289e Mon Sep 17 00:00:00 2001
From: Pablo Zmdl <pablo@nextcloud.com>
Date: Thu, 28 May 2026 14:48:04 +0200
Subject: [PATCH] Strip ANSI codes from command output before sending it to the
 browser

Signed-off-by: Pablo Zmdl <pablo@nextcloud.com>
---
 php/src/Controller/DockerController.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/php/src/Controller/DockerController.php b/php/src/Controller/DockerController.php
index bfe38f1c..9b15df67 100644
--- a/php/src/Controller/DockerController.php
+++ b/php/src/Controller/DockerController.php
@@ -443,6 +443,8 @@ readonly class DockerController {
         // if it'll actually pull an image), but which should not need to know anything about the
         // wanted markup or formatting.
         $addToStreamingResponseBody = function (string $message, ?Container $container = null) use ($nonbufResp) : void {
+            // Strip ANSI codes.
+            $message = preg_replace('/\e[[][A-Za-z0-9];?[0-9]*m?/', '', $message);
             if ($container) {
                 $message = "{$container->displayName}: {$message}";
             }