feat: add support for MSC4439 PGP key URIs in wk-support

This commit introduces support for MSC4439, Encryption Key URIs
in `.well-known/matrix/support`. ([MSC](matrix-org/matrix-spec-proposals#4439),
[Rendered](https://github.com/thetayloredman/matrix-spec-proposals/blob/msc4439/proposals/4439-support-contact-encryption.md))
via an additional config option.

Author: thetayloredman

Cargo.lock

@@ -344,7 +344,7 @@ version = "0.1.2"
 [workspace.dependencies.ruma]
 git = "https://forgejo.ellis.link/continuwuation/ruwuma"
 #branch = "conduwuit-changes"
-rev = "a97b91adcc012ef04991d823b8b5a79c6686ae48"
+rev = "1415caf8a32af4d943580c5ea4e12be1974593c2"
 features = [
     "compat",
     "rand",
@@ -383,7 +383,8 @@ features = [
     "unstable-pdu",
     "unstable-msc4155",
     "unstable-msc4143", # livekit well_known response
-    "unstable-msc4284"
+    "unstable-msc4284",
+    "unstable-msc4439", # pgp_key in .well_known/matrix/support
 ]
 
 [workspace.dependencies.rust-rocksdb]

Cargo.toml

@@ -0,0 +1,2 @@
+Add new config option for [MSC4439](https://github.com/matrix-org/matrix-spec-proposals/pull/4439)
+PGP key URIs. Contributed by LogN.

changelog.d/1609.feature.md

@@ -1869,6 +1869,14 @@
 #
 #support_mxid =
 
+# PGP key URI for server support contacts, to be served as part of the
+# MSC1929 server support endpoint. This uses the unstable prefix from
+# [MSC4439].
+# 
+# [MSC4439]: https://github.com/matrix-org/matrix-spec-proposals/pull/4439
+#
+#support_pgp_key =
+
 # **DEPRECATED**: Use `[global.matrix_rtc].foci` instead.
 #
 # A list of MatrixRTC foci URLs which will be served as part of the

conduwuit-example.toml

@@ -71,6 +71,7 @@ pub(crate) async fn well_known_support(
 
 	let email_address = services.config.well_known.support_email.clone();
 	let matrix_id = services.config.well_known.support_mxid.clone();
+	let pgp_key = services.config.well_known.support_pgp_key.clone();
 
 	// TODO: support defining multiple contacts in the config
 	let mut contacts: Vec<Contact> = vec![];
@@ -88,6 +89,7 @@ pub(crate) async fn well_known_support(
 			role: role_value.clone(),
 			email_address: email_address.clone(),
 			matrix_id: matrix_id.clone(),
+			pgp_key: pgp_key.clone(),
 		});
 	}
 
@@ -104,6 +106,7 @@ pub(crate) async fn well_known_support(
 				role: role_value.clone(),
 				email_address: None,
 				matrix_id: Some(user_id.to_owned()),
+				pgp_key: None,
 			});
 		}
 	}

src/api/client/well_known.rs

@@ -2191,6 +2191,13 @@ pub struct WellKnownConfig {
 	/// listed.
 	pub support_mxid: Option<OwnedUserId>,
 
+	/// PGP key URI for server support contacts, to be served as part of the
+	/// MSC1929 server support endpoint. This uses the unstable prefix from
+	/// [MSC4439].
+	/// 
+	/// [MSC4439]: https://github.com/matrix-org/matrix-spec-proposals/pull/4439
+	pub support_pgp_key: Option<String>,
+
 	/// **DEPRECATED**: Use `[global.matrix_rtc].foci` instead.
 	///
 	/// A list of MatrixRTC foci URLs which will be served as part of the