Add administrator option to disable proxying

src/invidious.cr

@@ -4667,6 +4667,12 @@ get "/videoplayback" do |env|
   end
 
   if url.includes? "&file=seg.ts"
+    if CONFIG.disabled?("livestreams")
+      env.response.status_code = 403
+      error_message = "Administrator has disabled this endpoint."
+      next templated "error"
+    end
+
     begin
       client = make_client(URI.parse(host), region)
       client.get(url, headers) do |response|
@@ -4694,6 +4700,13 @@ get "/videoplayback" do |env|
     rescue ex
     end
   else
+    if query_params["title"]? && CONFIG.disabled?("downloads") ||
+       CONFIG.disabled?("dash")
+      env.response.status_code = 403
+      error_message = "Administrator has disabled this endpoint."
+      next templated "error"
+    end
+
     content_length = nil
     first_chunk = true
     range_start, range_end = parse_range(env.request.headers["Range"]?)

src/invidious/helpers/helpers.cr

@@ -96,6 +96,19 @@ struct Config
     end
   end
 
+  def disabled?(option)
+    case disabled = CONFIG.disable_proxy
+    when Bool
+      return disabled
+    when Array
+      if disabled.includes? option
+        return true
+      else
+        return false
+      end
+    end
+  end
+
   YAML.mapping({
     channel_threads:          Int32,                                # Number of threads to use for crawling videos from channels (for updating subscriptions)
     feed_threads:             Int32,                                # Number of threads to use for updating feeds
@@ -123,6 +136,7 @@ struct Config
     cache_annotations: {type: Bool, default: false},                   # Cache annotations requested from IA, will not cache empty annotations or annotations that only contain cards
     banner:            {type: String?, default: nil},                  # Optional banner to be displayed along top of page for announcements, etc.
     hsts:              {type: Bool?, default: true},                   # Enables 'Strict-Transport-Security'. Ensure that `domain` and all subdomains are served securely
+    disable_proxy:     {type: Bool? | Array(String)?, default: false}, # Disable proxying server-wide: options: 'dash', 'livestreams', 'downloads', 'local'
   })
 end
 

src/invidious/videos.cr

@@ -1292,6 +1292,14 @@ def process_video_params(query, preferences)
   related_videos = related_videos == 1
   video_loop = video_loop == 1
 
+  if CONFIG.disabled?("dash") && quality == "dash"
+    quality = "high"
+  end
+
+  if CONFIG.disabled?("local") && local
+    local = false
+  end
+
   if query["t"]?
     video_start = decode_time(query["t"])
   end

src/invidious/views/components/player.ecr

@@ -6,7 +6,7 @@
     <% if params.autoplay %>autoplay<% end %>
     <% if params.video_loop %>loop<% end %>
     <% if params.controls %>controls<% end %>>
-    <% if hlsvp %>
+    <% if hlsvp && !CONFIG.disabled?("livestreams") %>
         <source src="<%= hlsvp %>?local=true" type="application/x-mpegURL" label="livestream">
     <% else %>
         <% if params.listen %>

src/invidious/views/preferences.ecr

@@ -35,7 +35,7 @@ function update_value(element) {
 
             <div class="pure-control-group">
                 <label for="local"><%= translate(locale, "Proxy videos? ") %></label>
-                <input name="local" id="local" type="checkbox" <% if preferences.local %>checked<% end %>>
+                <input name="local" id="local" type="checkbox" <% if preferences.local && !CONFIG.disabled?("local") %>checked<% end %> <% if CONFIG.disabled?("local") %>disabled<% end %>>
             </div>
 
             <div class="pure-control-group">
@@ -56,8 +56,10 @@ function update_value(element) {
                 <label for="quality"><%= translate(locale, "Preferred video quality: ") %></label>
                 <select name="quality" id="quality">
                     <% {"dash", "hd720", "medium", "small"}.each do |option| %>
+                        <% if !(option == "dash" && CONFIG.disabled?("dash")) %>
                             <option value="<%= option %>" <% if preferences.quality == option %> selected <% end %>><%= translate(locale, option) %></option>
                         <% end %>
+                    <% end %>
                 </select>
             </div>
 

src/invidious/views/watch.ecr

@@ -98,7 +98,7 @@ var video_data = {
                 <% end %>
             </p>
 
-            <% if CONFIG.dmca_content.includes? video.id %>
+            <% if CONFIG.dmca_content.includes?(video.id) || CONFIG.disabled?("downloads") %>
                 <p><%= translate(locale, "Download is disabled.") %></p>
             <% else %>
                 <form class="pure-form pure-form-stacked" action="/latest_version" method="get" rel="noopener" target="_blank">