1 files changed, 32 insertions, 0 deletions
diff --git a/Rhea/Controllers/NarInfoController.cs b/Rhea/Controllers/NarInfoController.cs
new file mode 100644
index 0000000..b81b655
--- /dev/null
+++ b/Rhea/Controllers/NarInfoController.cs
@@ -0,0 +1,32 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace Rhea.Controllers;
+
+[ApiController]
+public class NarInfoController(RheaConfiguration cfg, StoreMetaService storeSvc) : ControllerBase
+{
+    [HttpHead("/{hash}.narinfo")]
+    public async Task CheckNixNarExists(string hash)
+    {
+        var path = await storeSvc.GetStorePathByBaseName(hash);
+        Response.StatusCode = string.IsNullOrWhiteSpace(path) ? 404 : 200;
+    }
+    
+    [HttpGet("/{hash}.narinfo")]
+    public async Task<string> GetNixNarInfo(string hash)
+    {
+        var path = await storeSvc.GetStorePathByBaseName(hash);
+        
+        return $"""
+               StorePath: {cfg.StorePath}/{path}
+               URL: nar/09d83cyl9dlfkkbspkgkk7bfydj3mvw6r1x98kvc2v8wl2xd8ldy.nar.zst
+               Compression: zstd
+               FileHash: sha256:0yzqbk88qqh0c7dswwcm27y1pxs5a83hga81vjmcs9d331psv1g8
+               FileSize: 48255244
+               NarHash: sha256:09d83cyl9dlfkkbspkgkk7bfydj3mvw6r1x98kvc2v8wl2xd8ldy
+               NarSize: 209581048
+               Sig: cache.nixos.org-1:sRYhPUkDDRCgZDlgPMvXYEgYvX3GF24wT0v6HOUrtB/4g5lZffgRksiSmsth2wKRPlMijKP/yoDkG4NZDJfJCA==
+               CA: fixed:r:sha256:09d83cyl9dlfkkbspkgkk7bfydj3mvw6r1x98kvc2v8wl2xd8ldy
+               """;
+    }
+}
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