From bc5d8d0b9b778b130f3a91cd154c9c0d469b09ff Mon Sep 17 00:00:00 2001
From: Fijxu <fijxu@nadeko.net>
Date: Thu, 1 Jan 2026 22:03:17 -0300
Subject: [PATCH] feat: Do not display backends that do not have an i2p
 equivalent when using i2p

---
 src/invidious/routes/before_all.cr | 2 ++
 src/invidious/views/template.ecr   | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/src/invidious/routes/before_all.cr b/src/invidious/routes/before_all.cr
index ca7e26dc..e5aa9482 100644
--- a/src/invidious/routes/before_all.cr
+++ b/src/invidious/routes/before_all.cr
@@ -85,8 +85,10 @@ module Invidious::Routes::BeforeAll
           env.set "current_companion", current_companion
 
           if host.split(".").last == "i2p"
+            env.set "using_i2p", true
             env.set "companion_public_url", CONFIG.invidious_companion[current_companion].i2p_public_url.to_s
           else
+            env.set "using_i2p", false
             env.set "companion_public_url", CONFIG.invidious_companion[current_companion].public_url.to_s
           end
         end
diff --git a/src/invidious/views/template.ecr b/src/invidious/views/template.ecr
index e1bac53d..1e17462a 100644
--- a/src/invidious/views/template.ecr
+++ b/src/invidious/views/template.ecr
@@ -114,12 +114,14 @@
                     scheme = env.get("scheme")
                     status = BackendInfo.get_status
                     companion_switched = env.get?("companion_switched")
+                    using_i2p = env.get?("using_i2p")
                 %>
                 <div class="h-box" style="margin-bottom: 10px;">
                     <b><%= translate(locale, "companion_switch_backend") %></b>
                     <% if domain %>
                         <% CONFIG.invidious_companion.each_with_index do | companion, index | %>
                         <% next if companion.community && !preferences.show_community_backends %>
+                        <% next if companion.i2p_public_url.host.nil? && using_i2p %>
                         <% host_backend = env.request.headers["Host"].sub(/([^.]+)(\d+)/, "\\1#{index+1}") %>
                         <% is_current_backend_host = host_backend == env.request.headers["Host"] %>
                             <a href="<%= scheme %>://<%= host_backend %><%= env.request.resource %>" style="<%= is_current_backend_host ? "text-decoration-line: underline;" : "" %> display: inline-block;">
@@ -138,6 +140,7 @@
                         <% current_page = env.get("current_page") %>
                         <% CONFIG.invidious_companion.each_with_index do | companion, index | %>
                         <% next if companion.community && !preferences.show_community_backends %>
+                        <% next if companion.i2p_public_url.host.nil? && using_i2p %>
                             <a href="/switchbackend?backend_id=<%= index.to_s %>&referer=<%= current_page %>" style="<%= current_backend == index ? "text-decoration-line: underline;" : "" %> display: inline-block;">
                                 <%= HTML.escape(CONFIG.backend_name_prefix + (index + 1).to_s) %> <%= HTML.escape(companion.note) %>
                                 <span style="color: