1 files changed, 34 insertions, 0 deletions
diff --git a/Utilities/LibMatrix.HomeserverEmulator/Controllers/DirectoryController.cs b/Utilities/LibMatrix.HomeserverEmulator/Controllers/DirectoryController.cs
new file mode 100644
index 0000000..52d5932
--- /dev/null
+++ b/Utilities/LibMatrix.HomeserverEmulator/Controllers/DirectoryController.cs
@@ -0,0 +1,34 @@
+using System.Text.Json.Nodes;
+using System.Text.Json.Serialization;
+using LibMatrix.EventTypes.Spec.State;
+using LibMatrix.HomeserverEmulator.Services;
+using LibMatrix.Homeservers;
+using LibMatrix.Responses;
+using LibMatrix.Services;
+using Microsoft.AspNetCore.Mvc;
+
+namespace LibMatrix.HomeserverEmulator.Controllers;
+
+[ApiController]
+[Route("/_matrix/")]
+public class DirectoryController(ILogger<DirectoryController> logger, RoomStore roomStore) : ControllerBase {
+    [HttpGet("client/v3/directory/room/{alias}")]
+    public async Task<AliasResult> GetRoomAliasV3(string alias) {
+        var match = roomStore._rooms.FirstOrDefault(x =>
+            x.State.Any(y => y.Type == RoomCanonicalAliasEventContent.EventId && y.StateKey == "" && y.RawContent?["alias"]?.ToString() == alias));
+
+        if (match == null)
+            throw new MatrixException() {
+                ErrorCode = "M_NOT_FOUND",
+                Error = "Room not found"
+            };
+
+        var servers = match.State.Where(x => x.Type == RoomMemberEventContent.EventId && x.RawContent?["membership"]?.ToString() == "join")
+            .Select(x => x.StateKey!.Split(':', 2)[1]).ToList();
+
+        return new() {
+            RoomId = match.RoomId,
+            Servers = servers
+        };
+    }
+}
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