allow previewing jwt channels (#1586)

CHANGELOG.md

@@ -11,6 +11,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix antiforgery error caused by reusing existing browser tabs across docker container restarts
   - Data protection keys will now be persisted under ErsatzTV's config folder instead of being recreated at startup 
 
+### Changed
+- Pass through `access_token` query param from `Channels` page url to streaming endpoints
+  - This parameter isn't normally needed on the `Channels` page, since the web UI is not protected with JWT
+  - Its only purpose is to allow playback of authenticated channels in the web UI
+
 ## [0.8.5-beta] - 2024-01-30
 ### Added
 - Respect browser's `Accept-Language` header for date time display

ErsatzTV/Pages/Channels.razor

@@ -4,6 +4,8 @@
 @using ErsatzTV.Application.FFmpegProfiles
 @using System.Globalization
 @using ErsatzTV.Core.Interfaces.FFmpeg
+@using Microsoft.AspNetCore.WebUtilities
+@using Microsoft.Extensions.Primitives
 @implements IDisposable
 @inject IDialogService Dialog
 @inject IMediator Mediator
@@ -180,10 +182,16 @@
                 return;
             }
 
-            string currentUri = NavigationManager.Uri;
+            var uri = new UriBuilder(NavigationManager.ToAbsoluteUri(NavigationManager.Uri));
-            string streamUri = currentUri.Replace("/channels", $"/iptv/channel/{channel.Number}.m3u8?mode=segmenter");
+            uri.Path = uri.Path.Replace("/channels", $"/iptv/channel/{channel.Number}.m3u8");
+            string query = uri.Query;
+            uri.Query = "?mode=segmenter";
+            if (QueryHelpers.ParseQuery(query).TryGetValue("access_token", out StringValues token))
+            {
+                uri.Query += $"&access_token={token.ToString()}";
+            }
 
-            var parameters = new DialogParameters { { "StreamUri", streamUri } };
+            var parameters = new DialogParameters { { "StreamUri", uri.ToString() } };
             var options = new DialogOptions { CloseButton = true, MaxWidth = MaxWidth.ExtraLarge };
             await Dialog.ShowAsync<ChannelPreviewDialog>("Channel Preview", parameters, options);
         }