From ab5e088016d6576cfb01a9b4d6a842995728a5d5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Mon, 18 Sep 2023 04:17:16 +0200
Subject: [PATCH] conduit: Add Element X support

---
 configuration/services/conduit.nix | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/configuration/services/conduit.nix b/configuration/services/conduit.nix
index 871b5e2..2d341b7 100644
--- a/configuration/services/conduit.nix
+++ b/configuration/services/conduit.nix
@@ -207,12 +207,28 @@ in {
       merge_slashes off;
     '';
 
-    locations."/_matrix" = {
-      proxyPass = "http://${cfg.settings.global.address}:${toString cfg.settings.global.port}";
-      # Recommended by conduit
-      extraConfig = ''
-        proxy_buffering off;
-      '';
+    locations = {
+      "/_matrix" = {
+        proxyPass = "http://${cfg.settings.global.address}:${toString cfg.settings.global.port}";
+        # Recommended by conduit
+        extraConfig = ''
+          proxy_buffering off;
+        '';
+      };
+
+      # Add Element X support
+      # TODO(tlater): Remove when no longer required: https://github.com/vector-im/element-x-android/issues/1085
+      "=/.well-known/matrix/client" = {
+        alias = pkgs.writeText "well-known-matrix-client" (builtins.toJSON {
+          "m.homeserver".base_url = "https://${domain}";
+          "org.matrix.msc3575.proxy".url = "https://${domain}";
+        });
+
+        extraConfig = ''
+          default_type application/json;
+          add_header Access-Control-Allow-Origin "*";
+        '';
+      };
     };
   };
 }