From ee21de5b948b08a29f3d79da0c17a6d84b11a119 Mon Sep 17 00:00:00 2001
From: Bruno BELANYI <bruno@belanyi.fr>
Date: Wed, 9 Jun 2021 18:54:16 +0200
Subject: [PATCH] modules: services: matrix: add mail configuration

---
 machines/porthos/services.nix |  1 +
 modules/services/matrix.nix   | 44 +++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/machines/porthos/services.nix b/machines/porthos/services.nix
index 9773007..44c0b50 100644
--- a/machines/porthos/services.nix
+++ b/machines/porthos/services.nix
@@ -65,6 +65,7 @@ in
     # Matrix backend and Element chat front-end
     matrix = {
       enable = true;
+      mail = my.secrets.matrix.mail;
       secret = my.secrets.matrix.secret;
     };
     miniflux = {
diff --git a/modules/services/matrix.nix b/modules/services/matrix.nix
index 68468f0..fd4e90c 100644
--- a/modules/services/matrix.nix
+++ b/modules/services/matrix.nix
@@ -18,11 +18,46 @@ in
 {
   options.my.services.matrix = with lib; {
     enable = mkEnableOption "Matrix Synapse";
+
     secret = mkOption {
       type = types.str;
       example = "deadbeef";
       description = "Shared secret to register users";
     };
+
+    mail = {
+      host = mkOption {
+        type = types.str;
+        default = "smtp.migadu.com";
+        example = "smtp.example.com";
+        description = "Which host should be used for SMTP";
+      };
+
+      port = mkOption {
+        type = types.port;
+        default = 587;
+        example = 25;
+        description = "Which port should be used for SMTP";
+      };
+
+      username = mkOption {
+        type = types.str;
+        example = "matrix@example.com";
+        description = "Which username should be used to connect";
+      };
+
+      password = mkOption {
+        type = types.str;
+        example = "password";
+        description = "Which password should be used to connect";
+      };
+
+      notifFrom = mkOption {
+        type = types.str;
+        example = "<matrix@example.com>";
+        description = "Which address should be used for `From` field";
+      };
+    };
   };
 
   config = lib.mkIf cfg.enable {
@@ -72,6 +107,15 @@ in
       extraConfig = ''
         experimental_features:
           spaces_enabled: true
+
+        email:
+          smtp_host: "${cfg.mail.host}"
+          smtp_port: ${toString cfg.mail.port}
+          smtp_user: "${cfg.mail.username}"
+          smtp_pass: "${cfg.mail.password}"
+          notif_from: "${cfg.mail.notifFrom}"
+          # Refuse to connect unless the server supports STARTTLS.
+          require_transport_security: true
       '';
     };