From d243253af02abef9f1a66d5978ea0c3adcbe2292 Mon Sep 17 00:00:00 2001
From: Kieran <kieran@harkin.me>
Date: Wed, 6 Dec 2023 12:10:27 +0000
Subject: [PATCH] Add rotation metadata

---
 VoidCat/Model/VoidSettings.cs             |  2 +-
 VoidCat/Services/Files/CompressContent.cs | 22 +++++++++++++++++++++-
 VoidCat/VoidCat.csproj                    |  1 +
 VoidCat/VoidStartup.cs                    |  2 +-
 4 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/VoidCat/Model/VoidSettings.cs b/VoidCat/Model/VoidSettings.cs
index 3a958c3..7ffb5d0 100644
--- a/VoidCat/Model/VoidSettings.cs
+++ b/VoidCat/Model/VoidSettings.cs
@@ -59,7 +59,7 @@ namespace VoidCat.Model
         /// <summary>
         /// CORS origins
         /// </summary>
-        public List<Uri> CorsOrigins { get; init; } = new();
+        public List<string> CorsOrigins { get; init; } = new();
 
         /// <summary>
         /// Cloud file storage settings
diff --git a/VoidCat/Services/Files/CompressContent.cs b/VoidCat/Services/Files/CompressContent.cs
index e6e64bd..ca38993 100644
--- a/VoidCat/Services/Files/CompressContent.cs
+++ b/VoidCat/Services/Files/CompressContent.cs
@@ -1,3 +1,4 @@
+using ExifLibrary;
 using FFMpegCore;
 
 namespace VoidCat.Services.Files;
@@ -21,6 +22,7 @@ public class CompressContent
         {
             string? outMime = null;
             var inExt = Path.GetExtension(input).ToLower();
+            var isImage = false;
             switch (inExt)
             {
                 case ".jpg":
@@ -32,10 +34,12 @@ public class CompressContent
                 {
                     output = Path.ChangeExtension(output, ".webp");
                     outMime = "image/webp";
+                    isImage = true;
                     break;
                 }
             }
-            
+
+            var probe = isImage ? await ImageFile.FromFileAsync(input) : default;
             var ffmpeg = FFMpegArguments
                 .FromFileInput(input)
                 .OutputToFile(output, true, o =>
@@ -45,6 +49,22 @@ public class CompressContent
                     {
                         o.Loop(0);
                     }
+
+                    if (probe != default)
+                    {
+                        var orientation = probe.Properties.Get<ExifEnumProperty<Orientation>>(ExifTag.Orientation);
+                        if (orientation != default && orientation.Value != Orientation.Normal)
+                        {
+                            if (orientation.Value == Orientation.RotatedRight)
+                            {
+                                o.WithCustomArgument("-metadata:s:v rotate=\"90\"");
+                            }
+                            else if (orientation.Value == Orientation.RotatedLeft)
+                            {
+                                o.WithCustomArgument("-metadata:s:v rotate=\"-90\"");
+                            }
+                        }
+                    }
                 })
                 .CancellableThrough(cts);
 
diff --git a/VoidCat/VoidCat.csproj b/VoidCat/VoidCat.csproj
index 8cb90bd..d8784ab 100644
--- a/VoidCat/VoidCat.csproj
+++ b/VoidCat/VoidCat.csproj
@@ -16,6 +16,7 @@
 		<PackageReference Include="AWSSDK.S3" Version="3.7.103.41" />
 		<PackageReference Include="BencodeNET" Version="5.0.0" />
 		<PackageReference Include="BTCPayServer.Lightning.Common" Version="1.3.21" />
+		<PackageReference Include="ExifLibNet" Version="2.1.4" />
 		<PackageReference Include="FFMpegCore" Version="5.1.0" />
 		<PackageReference Include="Google.Protobuf" Version="3.22.3" />
 		<PackageReference Include="Grpc.Net.Client" Version="2.52.0" />
diff --git a/VoidCat/VoidStartup.cs b/VoidCat/VoidStartup.cs
index e853123..3395cd1 100644
--- a/VoidCat/VoidStartup.cs
+++ b/VoidCat/VoidStartup.cs
@@ -112,7 +112,7 @@ public static class VoidStartup
 
                 if (voidSettings.CorsOrigins.Count > 0)
                 {
-                    p.WithOrigins(voidSettings.CorsOrigins.Select(a => a.ToString()).ToArray())
+                    p.WithOrigins(voidSettings.CorsOrigins.ToArray())
                         .AllowCredentials();
                 }
                 else