mixed refactor

Jellyfin.Plugin.SRFPlay/Controllers/StreamProxyController.cs

@@ -40,6 +40,32 @@ public class StreamProxyController : ControllerBase
         _httpClientFactory = httpClientFactory;
     }
 
+    /// <summary>
+    /// Adds CORS headers to allow cross-origin requests from hls.js in browsers.
+    /// </summary>
+    private void AddCorsHeaders()
+    {
+        Response.Headers["Access-Control-Allow-Origin"] = "*";
+        Response.Headers["Access-Control-Allow-Methods"] = "GET, HEAD, OPTIONS";
+        Response.Headers["Access-Control-Allow-Headers"] = "Content-Type, Range, Accept, Origin";
+        Response.Headers["Access-Control-Expose-Headers"] = "Content-Length, Content-Range, Accept-Ranges";
+        Response.Headers["Access-Control-Max-Age"] = "86400"; // Cache preflight for 24 hours
+    }
+
+    /// <summary>
+    /// Handles CORS preflight OPTIONS requests for all proxy endpoints.
+    /// </summary>
+    /// <returns>Empty response with CORS headers.</returns>
+    [HttpOptions("{itemId}/master.m3u8")]
+    [HttpOptions("{itemId}/{manifestPath}.m3u8")]
+    [HttpOptions("{itemId}/{*segmentPath}")]
+    [AllowAnonymous]
+    public IActionResult HandleOptions()
+    {
+        AddCorsHeaders();
+        return Ok();
+    }
+
     /// <summary>
     /// Proxies HLS master manifest requests.
     /// </summary>
@@ -54,6 +80,7 @@ public class StreamProxyController : ControllerBase
         [FromRoute] string itemId,
         CancellationToken cancellationToken)
     {
+        AddCorsHeaders();
         _logger.LogInformation("Proxy request for master manifest - Path ItemId: {PathItemId}, Query params: {QueryString}", itemId, Request.QueryString);
 
         // Try to resolve the actual item ID (path ID might be a session ID during transcoding)
@@ -119,6 +146,7 @@ public class StreamProxyController : ControllerBase
         [FromRoute] string manifestPath,
         CancellationToken cancellationToken)
     {
+        AddCorsHeaders();
         var fullPath = $"{manifestPath}.m3u8";
         _logger.LogInformation("Proxy request for variant manifest - ItemId: {ItemId}, Path: {Path}", itemId, fullPath);
 
@@ -168,6 +196,7 @@ public class StreamProxyController : ControllerBase
         [FromRoute] string segmentPath,
         CancellationToken cancellationToken)
     {
+        AddCorsHeaders();
         _logger.LogDebug("Proxy request for segment - ItemId: {ItemId}, Path: {SegmentPath}", itemId, segmentPath);
 
         // Try to resolve the actual item ID
@@ -244,8 +273,8 @@ public class StreamProxyController : ControllerBase
             return queryItemId.ToString();
         }
 
-        // No query parameters - use path ID as-is (TRANSCODING SESSION ID CASE)
-        _logger.LogWarning("⚠️ No query parameters found, using path ID as-is: {PathItemId} (likely transcoding session ID)", pathItemId);
+        // No query parameters - use path ID as-is (normal case for segments and transcoding sessions)
+        _logger.LogDebug("No query parameters, using path ID as-is: {PathItemId}", pathItemId);
         return pathItemId;
     }
 
@@ -272,28 +301,52 @@ public class StreamProxyController : ControllerBase
             queryParams = string.Empty;
         }
 
+        // Helper function to rewrite a single URL
+        string RewriteUrl(string url)
+        {
+            if (url.Contains("://", StringComparison.Ordinal))
+            {
+                // Absolute URL - extract filename and rewrite
+                var uri = new Uri(url.Trim());
+                var segments = uri.AbsolutePath.Split('/');
+                var fileName = segments[^1];
+                return $"{baseProxyUrl}/{fileName}{queryParams}";
+            }
+
+            // Relative URL - rewrite to proxy
+            return $"{baseProxyUrl}/{url.Trim()}{queryParams}";
+        }
+
         var lines = manifestContent.Split('\n');
         var result = new System.Text.StringBuilder();
 
         foreach (var line in lines)
         {
-            if (line.StartsWith('#') || string.IsNullOrWhiteSpace(line))
+            if (string.IsNullOrWhiteSpace(line))
             {
-                // Keep metadata and blank lines as-is
                 result.AppendLine(line);
             }
-            else if (line.Contains("://", StringComparison.Ordinal))
+            else if (line.StartsWith('#'))
             {
-                // Absolute URL - extract the path and rewrite
-                var uri = new Uri(line.Trim());
-                var segments = uri.AbsolutePath.Split('/');
-                var fileName = segments[^1];
-                result.AppendLine(CultureInfo.InvariantCulture, $"{baseProxyUrl}/{fileName}{queryParams}");
+                // HLS tag line - check for URI="..." attributes (e.g., #EXT-X-MAP:URI="init.mp4")
+                if (line.Contains("URI=\"", StringComparison.Ordinal))
+                {
+                    var rewrittenLine = System.Text.RegularExpressions.Regex.Replace(
+                        line,
+                        @"URI=""([^""]+)""",
+                        match => $"URI=\"{RewriteUrl(match.Groups[1].Value)}\"");
+                    result.AppendLine(rewrittenLine);
+                }
+                else
+                {
+                    // Keep other metadata lines as-is
+                    result.AppendLine(line);
+                }
             }
             else
             {
-                // Relative URL - rewrite to proxy
-                result.AppendLine(CultureInfo.InvariantCulture, $"{baseProxyUrl}/{line.Trim()}{queryParams}");
+                // Non-tag line with URL - rewrite it
+                result.AppendLine(RewriteUrl(line));
             }
         }