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src/Scanner/__Libraries/StellaOps.Scanner.Surface.Secrets/Providers/FileSurfaceSecretProvider.cs

@@ -20,6 +20,35 @@ internal sealed class FileSurfaceSecretProvider : ISurfaceSecretProvider
         _root = root;
     }
 
+    public SurfaceSecretHandle Get(SurfaceSecretRequest request)
+    {
+        if (request is null)
+        {
+            throw new ArgumentNullException(nameof(request));
+        }
+
+        var path = ResolvePath(request);
+        if (!File.Exists(path))
+        {
+            throw new SurfaceSecretNotFoundException(request);
+        }
+
+        var json = File.ReadAllText(path);
+        var descriptor = JsonSerializer.Deserialize<FileSecretDescriptor>(json);
+        if (descriptor is null)
+        {
+            throw new SurfaceSecretNotFoundException(request);
+        }
+
+        if (string.IsNullOrWhiteSpace(descriptor.Payload))
+        {
+            return SurfaceSecretHandle.Empty;
+        }
+
+        var bytes = Convert.FromBase64String(descriptor.Payload);
+        return SurfaceSecretHandle.FromBytes(bytes, descriptor.Metadata);
+    }
+
     public async ValueTask<SurfaceSecretHandle> GetAsync(
         SurfaceSecretRequest request,
         CancellationToken cancellationToken = default)