From 3a72f649d410878a0d526d8416278ca851873b15 Mon Sep 17 00:00:00 2001
From: Vivian <vivian@0x76.dev>
Date: Sat, 13 Jul 2024 23:59:59 +0200
Subject: [PATCH] matrix: sliding sync

---
 nixos/hosts/olympus/nginx/configuration.nix   | 25 +++++++++++++------
 nixos/hosts/olympus/synapse/configuration.nix | 20 +++++++++++++--
 2 files changed, 36 insertions(+), 9 deletions(-)

diff --git a/nixos/hosts/olympus/nginx/configuration.nix b/nixos/hosts/olympus/nginx/configuration.nix
index 59a39706..efbcd01e 100644
--- a/nixos/hosts/olympus/nginx/configuration.nix
+++ b/nixos/hosts/olympus/nginx/configuration.nix
@@ -5,7 +5,9 @@ let
       base_url = "https://chat.meowy.tech";
       server_name = "meowy.tech";
     };
-    "m.identity_server" = { };
+    "org.matrix.msc3575.proxy" = {
+      "url" = "https://sliding-chat.meowy.tech";
+    };
   };
   serverConfig."m.server" = "chat.meowy.tech:443";
   mkWellKnown = data: ''
@@ -18,7 +20,8 @@ let
     url = "https://git.0x76.dev/v/0x76.dev.git";
     rev = "ecb7811560650381f41ee537b9c8493e004a108b";
   };
-in {
+in
+{
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave
@@ -27,7 +30,10 @@ in {
   # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
   system.stateVersion = "21.05"; # Did you read the comment?
 
-  networking.firewall.allowedTCPPorts = [ 80 443 ];
+  networking.firewall.allowedTCPPorts = [
+    80
+    443
+  ];
   services = {
 
     # Generates vhosts for all hosts that have an `exposes` section
@@ -102,10 +108,8 @@ in {
               add_header Content-Type 'text/html; charset=UTF-8';
               return 200 '<h1>meow</h1>';
             '';
-            "= /.well-known/matrix/client".extraConfig =
-              mkWellKnown clientConfig;
-            "= /.well-known/matrix/server".extraConfig =
-              mkWellKnown serverConfig;
+            "= /.well-known/matrix/client".extraConfig = mkWellKnown clientConfig;
+            "= /.well-known/matrix/server".extraConfig = mkWellKnown serverConfig;
           };
         };
         "chat.meowy.tech" = {
@@ -115,6 +119,8 @@ in {
             "/".extraConfig = ''
               return 303 https://element.chat.meowy.tech;
             '';
+            "= /.well-known/matrix/client".extraConfig = mkWellKnown clientConfig;
+            "= /_matrix/client/unstable/org.matrix.msc3575/sync".proxyPass = "http://synapse.olympus:8009";
             "/_matrix".proxyPass = "http://synapse.olympus:8008";
             "/_synapse/client".proxyPass = "http://synapse.olympus:8008";
             "/_synapse/admin" = {
@@ -133,6 +139,11 @@ in {
             };
           };
         };
+        "sliding-chat.meowy.tech" = {
+          enableACME = true;
+          forceSSL = true;
+          locations."/".proxyPass = "http://synapse.olympus:8009";
+        };
         "element.chat.meowy.tech" = {
           enableACME = true;
           forceSSL = true;
diff --git a/nixos/hosts/olympus/synapse/configuration.nix b/nixos/hosts/olympus/synapse/configuration.nix
index c2a87081..89bbbb76 100644
--- a/nixos/hosts/olympus/synapse/configuration.nix
+++ b/nixos/hosts/olympus/synapse/configuration.nix
@@ -2,13 +2,17 @@
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
 
+
 { config, pkgs, ... }:
+
 let
   vs = config.vault-secrets.secrets;
   port = 8008;
+  slidingSyncPort = 8009;
   metricsPort = 9000;
 in
-{
+
+  {
   imports = [ ];
 
   # This value determines the NixOS release from which the default
@@ -19,7 +23,7 @@ in
   # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
   system.stateVersion = "22.11"; # Did you read the comment?
 
-  networking.firewall.allowedTCPPorts = [ port metricsPort ];
+  networking.firewall.allowedTCPPorts = [ port metricsPort slidingSyncPort ];
 
   vault-secrets.secrets.synapse = {
     user = "matrix-synapse";
@@ -38,6 +42,16 @@ in
     '';
   };
 
+  services.matrix-sliding-sync = {
+    enable = true;
+    createDatabase = true;
+    environmentFile = "${vs.synapse}/sync";
+    settings = {
+      SYNCV3_SERVER = "http://localhost:${toString port}";
+      SYNCV3_BINDADDR = ":${toString slidingSyncPort}";
+    };
+  };
+
   services.matrix-synapse = {
     enable = true;
     withJemalloc = true;
@@ -109,3 +123,5 @@ in
       };
   };
 }
+
+