From 8e038080472778e5b400a0a896e1cc2a5fe6f101 Mon Sep 17 00:00:00 2001
From: Frans de Jonge <fransdejonge@gmail.com>
Date: Mon, 14 Apr 2025 17:12:46 +0200
Subject: [PATCH] NetworkManager: check if proxy URL can be parsed (#13562)

Closes #12839.
---
 frontend/ui/network/manager.lua | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/frontend/ui/network/manager.lua b/frontend/ui/network/manager.lua
index 1e307b999..23997a8c2 100644
--- a/frontend/ui/network/manager.lua
+++ b/frontend/ui/network/manager.lua
@@ -900,6 +900,14 @@ function NetworkMgr:getProxyMenuTable()
             title = _("Enter proxy address"),
             hint = proxy(),
             callback = function(input)
+                local url = require("socket.url")
+                local parsed = url.parse(input)
+                if not parsed or not parsed.scheme or not parsed.host or not parsed.port then
+                    UIManager:show(InfoMessage:new{
+                        text = _("Invalid proxy address"),
+                    })
+                    return false
+                end
                 self:setHTTPProxy(input)
             end,
         },