1 files changed, 15 insertions, 0 deletions
diff --git a/extra/admin-api/Spacebar.Cdn/Mimes.cs b/extra/admin-api/Spacebar.Cdn/Mimes.cs
index 508e9a3b..5a281432 100644
--- a/extra/admin-api/Spacebar.Cdn/Mimes.cs
+++ b/extra/admin-api/Spacebar.Cdn/Mimes.cs
@@ -1,3 +1,4 @@
+using System.ComponentModel;
 using ImageMagick;
 
 namespace Spacebar.AdminApi.TestClient.Services;
@@ -8,6 +9,20 @@ public static class Mimes {
         return mime;
     }
 
+    public static MagickFormat GetFormatForExtension(string extension) {
+        extension = extension.ToLower();
+        // ban some values...
+        if (extension == "screenshot") throw new AccessViolationException("Disallowed extension: " + extension);
+
+        var matchingFormat = Enum.GetNames(typeof(MagickFormat)).FirstOrDefault(f => f.ToLower() == extension);
+        if (string.IsNullOrWhiteSpace(matchingFormat)) throw new InvalidEnumArgumentException("Unknown format: " + extension);
+        if (Enum.TryParse(matchingFormat, out MagickFormat fmt)) {
+            return fmt;
+        }
+
+        throw new InvalidEnumArgumentException("Unknown format: " + extension);
+    }
+
     public static string GetMime(MagickFormat fmt) => fmt switch {
         MagickFormat.Png => "image/png",
         MagickFormat.Jpeg => "image/jpeg",