Radicade Public Code

Server/CDN/VideosCDN.cs

@@ -0,0 +1,71 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace RadicadeServer.CDN
+{
+	[Route("cdn/video/")]
+	public class VideosCDN : Controller
+	{
+		private static readonly StringComparison PathComparison =
+			OperatingSystem.IsWindows() ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
+
+		[HttpGet("{*datablob}")]
+		public IActionResult GetDataBlob(string datablob)
+		{
+
+
+			if (string.IsNullOrEmpty(datablob)) return NotFound();
+
+
+
+
+
+			if (datablob.Contains("..", StringComparison.Ordinal) ||
+				datablob.Contains('\\') ||
+				datablob.Contains(':') ||
+				datablob.StartsWith('/'))
+				return NotFound();
+
+			var fullPath = Path.GetFullPath(Path.Join(DBConfig.CDNVideos, datablob));
+			var root = DBConfig.CDNVideos.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar)
+				+ Path.DirectorySeparatorChar;
+
+			if (!fullPath.StartsWith(root, PathComparison)) return NotFound();
+
+
+
+
+			var candidates = System.IO.File.Exists(fullPath)
+				? new[] { fullPath }
+				: new[]
+				{
+					fullPath + ".mp4",
+					fullPath + ".m4v",
+					fullPath + ".webm",
+					fullPath + ".mov",
+					fullPath + ".ogv"
+				};
+			var existing = candidates.FirstOrDefault(p => System.IO.File.Exists(p));
+
+			if (existing == null) return NotFound();
+
+
+
+
+
+			var ext = Path.GetExtension(existing).ToLowerInvariant();
+			var contentType = ext switch
+			{
+				".mp4" or ".m4v" => "video/mp4",
+				".webm" => "video/webm",
+				".mov" => "video/quicktime",
+				".ogv" => "video/ogg",
+				_ => "application/octet-stream"
+			};
+
+
+			Response.Headers["Accept-Ranges"] = "bytes";
+
+			return PhysicalFile(existing, contentType, enableRangeProcessing: true);
+		}
+	}
+}