Add show-config admin room command

src/database/admin.rs

@@ -259,6 +259,9 @@ enum AdminCommand {
 
     /// Print database memory usage statistics
     DatabaseMemoryUsage,
+
+    /// Show configuration values
+    ShowConfig,
 }
 
 fn process_admin_command(
@@ -428,6 +431,10 @@ fn process_admin_command(
                 e
             )),
         },
+        AdminCommand::ShowConfig => {
+            // Construct and send the response
+            RoomMessageEventContent::text_plain(format!("{}", db.globals.config))
+        }
     };
 
     Ok(reply_message_content)

src/database/globals.rs

@@ -35,7 +35,7 @@ pub struct Globals {
     pub actual_destination_cache: Arc<RwLock<WellKnownMap>>, // actual_destination, host
     pub tls_name_override: Arc<RwLock<TlsNameMap>>,
     pub(super) globals: Arc<dyn Tree>,
-    config: Config,
+    pub config: Config,
     keypair: Arc<ruma::signatures::Ed25519KeyPair>,
     dns_resolver: TokioAsyncResolver,
     jwt_decoding_key: Option<jsonwebtoken::DecodingKey<'static>>,