a

Signed-off-by: strawberry <strawberry@puppygock.gay>

Cargo.lock

@@ -96,9 +96,9 @@ dependencies = [
 
 [[package]]
 name = "async-trait"
-version = "0.1.77"
+version = "0.1.78"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c980ee35e870bd1a4d2c8294d4c04d0499e67bca1e4b5cefcc693c2fa00caea9"
+checksum = "461abc97219de0eaaf81fe3ef974a540158f3d079c2ab200f891f1a2ef201e85"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -412,7 +412,7 @@ checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
 
 [[package]]
 name = "conduit"
-version = "0.7.0-alpha+conduwuit-0.1.7"
+version = "0.7.0-alpha+conduwuit-0.1.8"
 dependencies = [
  "argon2",
  "async-trait",
@@ -2062,6 +2062,7 @@ dependencies = [
  "tokio-rustls",
  "tokio-socks",
  "tower-service",
+ "trust-dns-resolver",
  "url",
  "wasm-bindgen",
  "wasm-bindgen-futures",

Cargo.toml

@@ -6,7 +6,7 @@ authors = ["strawberry <strawberry@puppygock.gay>", "timokoesters <timo@koesters
 homepage = "https://puppygock.gay/conduwuit"
 repository = "https://gitlab.com/girlbossceo/conduwuit"
 readme = "README.md"
-version = "0.7.0-alpha+conduwuit-0.1.7"
+version = "0.7.0-alpha+conduwuit-0.1.8"
 edition = "2021"
 
 # See also `rust-toolchain.toml`
@@ -48,7 +48,7 @@ serde_html_form = "0.2.5"
 hmac = "0.12.1"
 sha-1 = "0.10.1"
 
-async-trait = "0.1.77"
+async-trait = "0.1.78"
 
 # used for checking if an IP is in specific subnets / CIDR ranges easier
 ipaddress = "0.1.3"
@@ -106,6 +106,7 @@ default-features = false
 features = [
   "rustls-tls-native-roots",
   "socks",
+  "trust-dns",
 ]
 
 # all the serde stuff

conduwuit-example.toml

@@ -161,7 +161,19 @@ registration_token = "change this token for something specific to your server"
 # controls whether non-admin local users are forbidden from sending room invites (local and remote),
 # and if non-admin users can receive remote room invites. admins are always allowed to send and receive all room invites.
 # defaults to false
-# block_non_admin_invites = falsse
+# block_non_admin_invites = false
+
+# List of forbidden username patterns/strings. Values in this list are matched as *contains*.
+# This is checked upon username availability check, registration, and startup as warnings if any local users in your database
+# have a forbidden username.
+# No default.
+# forbidden_usernames = []
+
+# List of forbidden room aliases and room IDs as patterns/strings. Values in this list are matched as *contains*.
+# This is checked upon room alias creation, custom room ID creation if used, and startup as warnings if any room aliases
+# in your database have a forbidden room alias/ID.
+# No default.
+# forbidden_room_names = []
 
 # Set this to true to allow your server's public room directory to be federated.
 # Set this to false to protect against /publicRooms spiders, but will forbid external users
@@ -345,7 +357,7 @@ url_preview_check_root_domain = false
 
 
 
-### Presence
+### Presence / Typing Indicators / Read Receipts
 
 # Config option to control local (your server only) presence updates/requests. Defaults to false.
 # Note that presence on conduwuit is very fast unlike Synapse's.
@@ -373,6 +385,9 @@ url_preview_check_root_domain = false
 # Config option to control how many seconds before presence updates that you are offline. Defaults to 30 minutes.
 #presence_offline_timeout_s = 1800
 
+# Config option to control whether we should receive remote incoming read receipts.
+# Defaults to true.
+#allow_incoming_read_receipts = true
 
 
 # Other options not in [global]:
@@ -387,4 +402,4 @@ url_preview_check_root_domain = false
 # Whether to listen and allow for HTTP and HTTPS connections (insecure!)
 # This config option is only available if conduwuit was built with `axum_dual_protocol` feature (not default feature)
 # Defaults to false
-#dual_protocol = false
+#dual_protocol = false

src/api/client_server/account.rs

@@ -275,10 +275,14 @@ pub async fn register_route(body: Ruma<register::v3::Request>) -> Result<registe
 
 	// If this is the first real user, grant them admin privileges except for guest
 	// users Note: the server user, @conduit:servername, is generated first
-	if services().users.count()? == 2 && !is_guest {
-		services().admin.make_user_admin(&user_id, displayname).await?;
+	if !is_guest {
+		if let Some(admin_room) = services().admin.get_admin_room()? {
+			if services().rooms.state_cache.room_joined_count(&admin_room)? == Some(1) {
+				services().admin.make_user_admin(&user_id, displayname).await?;
 
-		warn!("Granting {} admin privileges as the first user", user_id);
+				warn!("Granting {} admin privileges as the first user", user_id);
+			}
+		}
 	}
 
 	Ok(register::v3::Response {

src/api/client_server/media.rs

@@ -138,6 +138,8 @@ pub async fn get_media_preview_v1_route(
 /// - Some metadata will be saved in the database
 /// - Media will be saved in the media/ directory
 pub async fn create_content_route(body: Ruma<create_content::v3::Request>) -> Result<create_content::v3::Response> {
+	let sender_user = body.sender_user.as_ref().expect("user is authenticated");
+
 	let mxc = format!(
 		"mxc://{}/{}",
 		services().globals.server_name(),
@@ -147,6 +149,7 @@ pub async fn create_content_route(body: Ruma<create_content::v3::Request>) -> Re
 	services()
 		.media
 		.create(
+			Some(sender_user.clone()),
 			mxc.clone(),
 			body.filename.as_ref().map(|filename| "inline; filename=".to_owned() + filename).as_deref(),
 			body.content_type.as_deref(),
@@ -175,6 +178,8 @@ pub async fn create_content_route(body: Ruma<create_content::v3::Request>) -> Re
 pub async fn create_content_v1_route(
 	body: Ruma<create_content::v3::Request>,
 ) -> Result<RumaResponse<create_content::v3::Response>> {
+	let sender_user = body.sender_user.as_ref().expect("user is authenticated");
+
 	let mxc = format!(
 		"mxc://{}/{}",
 		services().globals.server_name(),
@@ -184,6 +189,7 @@ pub async fn create_content_v1_route(
 	services()
 		.media
 		.create(
+			Some(sender_user.clone()),
 			mxc.clone(),
 			body.filename.as_ref().map(|filename| "inline; filename=".to_owned() + filename).as_deref(),
 			body.content_type.as_deref(),
@@ -231,6 +237,7 @@ pub async fn get_remote_content(
 	services()
 		.media
 		.create(
+			None,
 			mxc.to_owned(),
 			content_response.content_disposition.as_deref(),
 			content_response.content_type.as_deref(),
@@ -484,6 +491,7 @@ pub async fn get_content_thumbnail_route(
 		services()
 			.media
 			.upload_thumbnail(
+				None,
 				mxc,
 				None,
 				get_thumbnail_response.content_type.as_deref(),
@@ -566,6 +574,7 @@ pub async fn get_content_thumbnail_v1_route(
 		services()
 			.media
 			.upload_thumbnail(
+				None,
 				mxc,
 				None,
 				get_thumbnail_response.content_type.as_deref(),
@@ -589,7 +598,7 @@ async fn download_image(client: &reqwest::Client, url: &str) -> Result<UrlPrevie
 		utils::random_string(MXC_LENGTH)
 	);
 
-	services().media.create(mxc.clone(), None, None, &image).await?;
+	services().media.create(None, mxc.clone(), None, None, &image).await?;
 
 	let (width, height) = match ImgReader::new(Cursor::new(&image)).with_guessed_format() {
 		Err(_) => (None, None),

src/api/client_server/read_marker.rs

@@ -81,6 +81,8 @@ pub async fn set_read_marker_route(body: Ruma<set_read_marker::v3::Request>) ->
 				room_id: body.room_id.clone(),
 			},
 		)?;
+
+		services().sending.flush_room(&body.room_id)?;
 	}
 
 	Ok(set_read_marker::v3::Response {})
@@ -136,6 +138,8 @@ pub async fn create_receipt_route(body: Ruma<create_receipt::v3::Request>) -> Re
 					room_id: body.room_id.clone(),
 				},
 			)?;
+
+			services().sending.flush_room(&body.room_id)?;
 		},
 		create_receipt::v3::ReceiptType::ReadPrivate => {
 			let count = services()

src/api/client_server/space.rs

@@ -1,6 +1,11 @@
-use ruma::api::client::space::get_hierarchy;
+use std::str::FromStr;
 
-use crate::{services, Result, Ruma};
+use ruma::{
+	api::client::{error::ErrorKind, space::get_hierarchy},
+	UInt,
+};
+
+use crate::{service::rooms::spaces::PagnationToken, services, Error, Result, Ruma};
 
 /// # `GET /_matrix/client/v1/rooms/{room_id}/hierarchy``
 ///
@@ -9,11 +14,32 @@ use crate::{services, Result, Ruma};
 pub async fn get_hierarchy_route(body: Ruma<get_hierarchy::v1::Request>) -> Result<get_hierarchy::v1::Response> {
 	let sender_user = body.sender_user.as_ref().expect("user is authenticated");
 
-	let skip = body.from.as_ref().and_then(|s| s.parse::<usize>().ok()).unwrap_or(0);
+	let limit = body.limit.unwrap_or_else(|| UInt::from(10_u32)).min(UInt::from(100_u32));
 
-	let limit = body.limit.map_or(10, u64::from).min(100) as usize;
+	let max_depth = body.max_depth.unwrap_or_else(|| UInt::from(3_u32)).min(UInt::from(10_u32));
 
-	let max_depth = body.max_depth.map_or(3, u64::from).min(10) as usize + 1; // +1 to skip the space room itself
+	let key = body.from.as_ref().and_then(|s| PagnationToken::from_str(s).ok());
 
-	services().rooms.spaces.get_hierarchy(sender_user, &body.room_id, limit, skip, max_depth, body.suggested_only).await
+	// Should prevent unexpeded behaviour in (bad) clients
+	if let Some(ref token) = key {
+		if token.suggested_only != body.suggested_only || token.max_depth != max_depth {
+			return Err(Error::BadRequest(
+				ErrorKind::InvalidParam,
+				"suggested_only and max_depth cannot change on paginated requests",
+			));
+		}
+	}
+
+	services()
+		.rooms
+		.spaces
+		.get_client_hierarchy(
+			sender_user,
+			&body.room_id,
+			u64::from(limit) as usize,
+			key.map_or(0, |token| u64::from(token.skip) as usize),
+			u64::from(max_depth) as usize,
+			body.suggested_only,
+		)
+		.await
 }

src/api/client_server/state.rs

@@ -75,7 +75,7 @@ pub async fn send_state_event_for_empty_key_route(
 	.into())
 }
 
-/// # `GET /_matrix/client/r0/rooms/{roomid}/state`
+/// # `GET /_matrix/client/v3/rooms/{roomid}/state`
 ///
 /// Get all state events for a room.
 ///

src/api/ruma_wrapper/axum.rs

@@ -153,6 +153,10 @@ where
 				// treat non-appservice registrations as None authentication
 				AuthScheme::AppserviceToken => (None, None, None, false),
 				AuthScheme::ServerSignatures => {
+					if !services().globals.allow_federation() {
+						return Err(Error::bad_config("Federation is disabled."));
+					}
+
 					let TypedHeader(Authorization(x_matrix)) =
 						parts.extract::<TypedHeader<Authorization<XMatrix>>>().await.map_err(|e| {
 							warn!("Missing or invalid Authorization header: {}", e);

src/api/server_server.rs

@@ -28,6 +28,7 @@ use ruma::{
 			keys::{claim_keys, get_keys},
 			membership::{create_invite, create_join_event, prepare_join_event},
 			query::{get_profile_information, get_room_information},
+			space::get_hierarchy,
 			transactions::{
 				edu::{DeviceListUpdateContent, DirectDeviceContent, Edu, SigningKeyUpdateContent},
 				send_transaction_message,
@@ -364,7 +365,10 @@ async fn find_actual_destination(destination: &'_ ServerName) -> (FedDest, FedDe
 		None => {
 			if let Some(pos) = destination_str.find(':') {
 				debug!("2: Hostname with included port");
+
 				let (host, port) = destination_str.split_at(pos);
+				query_and_cache_override(host, host, port.parse::<u16>().unwrap_or(8448)).await;
+
 				FedDest::Named(host.to_owned(), port.to_owned())
 			} else {
 				debug!("Requesting well known for {destination}");
@@ -377,30 +381,23 @@ async fn find_actual_destination(destination: &'_ ServerName) -> (FedDest, FedDe
 							None => {
 								if let Some(pos) = delegated_hostname.find(':') {
 									debug!("3.2: Hostname with port in .well-known file");
+
 									let (host, port) = delegated_hostname.split_at(pos);
+									query_and_cache_override(host, host, port.parse::<u16>().unwrap_or(8448)).await;
+
 									FedDest::Named(host.to_owned(), port.to_owned())
 								} else {
 									debug!("Delegated hostname has no port in this branch");
 									if let Some(hostname_override) = query_srv_record(&delegated_hostname).await {
 										debug!("3.3: SRV lookup successful");
-										let force_port = hostname_override.port();
 
-										if let Ok(override_ip) = services()
-											.globals
-											.dns_resolver()
-											.lookup_ip(hostname_override.hostname())
-											.await
-										{
-											services().globals.tls_name_override.write().unwrap().insert(
-												delegated_hostname.clone(),
-												(override_ip.iter().collect(), force_port.unwrap_or(8448)),
-											);
-										} else {
-											debug!(
-												"Using SRV record {}, but could not resolve to IP",
-												hostname_override.hostname()
-											);
-										}
+										let force_port = hostname_override.port();
+										query_and_cache_override(
+											&delegated_hostname,
+											&hostname_override.hostname(),
+											force_port.unwrap_or(8448),
+										)
+										.await;
 
 										if let Some(port) = force_port {
 											FedDest::Named(delegated_hostname, format!(":{port}"))
@@ -409,6 +406,7 @@ async fn find_actual_destination(destination: &'_ ServerName) -> (FedDest, FedDe
 										}
 									} else {
 										debug!("3.4: No SRV records, just use the hostname from .well-known");
+										query_and_cache_override(&delegated_hostname, &delegated_hostname, 8448).await;
 										add_port_to_hostname(&delegated_hostname)
 									}
 								}
@@ -420,21 +418,14 @@ async fn find_actual_destination(destination: &'_ ServerName) -> (FedDest, FedDe
 						match query_srv_record(&destination_str).await {
 							Some(hostname_override) => {
 								debug!("4: SRV record found");
-								let force_port = hostname_override.port();
 
-								if let Ok(override_ip) =
-									services().globals.dns_resolver().lookup_ip(hostname_override.hostname()).await
-								{
-									services().globals.tls_name_override.write().unwrap().insert(
-										hostname.clone(),
-										(override_ip.iter().collect(), force_port.unwrap_or(8448)),
-									);
-								} else {
-									debug!(
-										"Using SRV record {}, but could not resolve to IP",
-										hostname_override.hostname()
-									);
-								}
+								let force_port = hostname_override.port();
+								query_and_cache_override(
+									&hostname,
+									&hostname_override.hostname(),
+									force_port.unwrap_or(8448),
+								)
+								.await;
 
 								if let Some(port) = force_port {
 									FedDest::Named(hostname.clone(), format!(":{port}"))
@@ -444,6 +435,7 @@ async fn find_actual_destination(destination: &'_ ServerName) -> (FedDest, FedDe
 							},
 							None => {
 								debug!("5: No SRV record found");
+								query_and_cache_override(&destination_str, &destination_str, 8448).await;
 								add_port_to_hostname(&destination_str)
 							},
 						}
@@ -452,7 +444,6 @@ async fn find_actual_destination(destination: &'_ ServerName) -> (FedDest, FedDe
 			}
 		},
 	};
-	debug!("Actual destination: {actual_destination:?}");
 
 	// Can't use get_ip_with_port here because we don't want to add a port
 	// to an IP address if it wasn't specified
@@ -466,9 +457,29 @@ async fn find_actual_destination(destination: &'_ ServerName) -> (FedDest, FedDe
 	} else {
 		FedDest::Named(hostname, ":8448".to_owned())
 	};
+
+	debug!("Actual destination: {actual_destination:?} hostname: {hostname:?}");
 	(actual_destination, hostname)
 }
 
+async fn query_and_cache_override(overname: &'_ str, hostname: &'_ str, port: u16) {
+	match services().globals.dns_resolver().lookup_ip(hostname.to_owned()).await {
+		Ok(override_ip) => {
+			debug!("Caching result of {:?} overriding {:?}", hostname, overname);
+
+			services()
+				.globals
+				.tls_name_override
+				.write()
+				.unwrap()
+				.insert(overname.to_owned(), (override_ip.iter().collect(), port));
+		},
+		Err(e) => {
+			debug!("Got {:?} for {:?} to override {:?}", e.kind(), hostname, overname);
+		},
+	}
+}
+
 async fn query_srv_record(hostname: &'_ str) -> Option<FedDest> {
 	fn handle_successful_srv(srv: &SrvLookup) -> Option<FedDest> {
 		srv.iter().next().map(|result| {
@@ -500,6 +511,10 @@ async fn query_srv_record(hostname: &'_ str) -> Option<FedDest> {
 }
 
 async fn request_well_known(destination: &str) -> Option<String> {
+	if !services().globals.tls_name_override.read().unwrap().contains_key(destination) {
+		query_and_cache_override(destination, destination, 8448).await;
+	}
+
 	let response = services()
 		.globals
 		.default_client()
@@ -619,10 +634,6 @@ pub async fn get_server_keys_deprecated_route() -> impl IntoResponse { get_serve
 pub async fn get_public_rooms_filtered_route(
 	body: Ruma<get_public_rooms_filtered::v1::Request>,
 ) -> Result<get_public_rooms_filtered::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	if !services().globals.allow_public_room_directory_over_federation() {
 		return Err(Error::bad_config("Room directory is not public."));
 	}
@@ -650,10 +661,6 @@ pub async fn get_public_rooms_filtered_route(
 pub async fn get_public_rooms_route(
 	body: Ruma<get_public_rooms::v1::Request>,
 ) -> Result<get_public_rooms::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	if !services().globals.allow_public_room_directory_over_federation() {
 		return Err(Error::bad_config("Room directory is not public."));
 	}
@@ -707,10 +714,6 @@ pub fn parse_incoming_pdu(pdu: &RawJsonValue) -> Result<(OwnedEventId, Canonical
 pub async fn send_transaction_message_route(
 	body: Ruma<send_transaction_message::v1::Request>,
 ) -> Result<send_transaction_message::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
 
 	let mut resolved_map = BTreeMap::new();
@@ -820,6 +823,10 @@ pub async fn send_transaction_message_route(
 				}
 			},
 			Edu::Receipt(receipt) => {
+				if !services().globals.allow_incoming_read_receipts() {
+					continue;
+				}
+
 				for (room_id, room_updates) in receipt.receipts {
 					for (user_id, user_updates) in room_updates.read {
 						if let Some((event_id, _)) = user_updates
@@ -946,10 +953,6 @@ pub async fn send_transaction_message_route(
 /// - Only works if a user of this server is currently invited or joined the
 ///   room
 pub async fn get_event_route(body: Ruma<get_event::v1::Request>) -> Result<get_event::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
 
 	let event = services().rooms.timeline.get_pdu_json(&body.event_id)?.ok_or_else(|| {
@@ -985,10 +988,6 @@ pub async fn get_event_route(body: Ruma<get_event::v1::Request>) -> Result<get_e
 /// Retrieves events from before the sender joined the room, if the room's
 /// history visibility allows.
 pub async fn get_backfill_route(body: Ruma<get_backfill::v1::Request>) -> Result<get_backfill::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
 
 	debug!("Got backfill request from: {}", sender_servername);
@@ -1041,10 +1040,6 @@ pub async fn get_backfill_route(body: Ruma<get_backfill::v1::Request>) -> Result
 pub async fn get_missing_events_route(
 	body: Ruma<get_missing_events::v1::Request>,
 ) -> Result<get_missing_events::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
 
 	if !services().rooms.state_cache.server_in_room(sender_servername, &body.room_id)? {
@@ -1118,10 +1113,6 @@ pub async fn get_missing_events_route(
 pub async fn get_event_authorization_route(
 	body: Ruma<get_event_authorization::v1::Request>,
 ) -> Result<get_event_authorization::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
 
 	if !services().rooms.state_cache.server_in_room(sender_servername, &body.room_id)? {
@@ -1157,10 +1148,6 @@ pub async fn get_event_authorization_route(
 ///
 /// Retrieves the current state of the room.
 pub async fn get_room_state_route(body: Ruma<get_room_state::v1::Request>) -> Result<get_room_state::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
 
 	if !services().rooms.state_cache.server_in_room(sender_servername, &body.room_id)? {
@@ -1211,10 +1198,6 @@ pub async fn get_room_state_route(body: Ruma<get_room_state::v1::Request>) -> Re
 pub async fn get_room_state_ids_route(
 	body: Ruma<get_room_state_ids::v1::Request>,
 ) -> Result<get_room_state_ids::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
 
 	if !services().rooms.state_cache.server_in_room(sender_servername, &body.room_id)? {
@@ -1253,10 +1236,6 @@ pub async fn get_room_state_ids_route(
 pub async fn create_join_event_template_route(
 	body: Ruma<prepare_join_event::v1::Request>,
 ) -> Result<prepare_join_event::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	if !services().rooms.metadata.exists(&body.room_id)? {
 		return Err(Error::BadRequest(ErrorKind::NotFound, "Room is unknown to this server."));
 	}
@@ -1343,10 +1322,6 @@ pub async fn create_join_event_template_route(
 async fn create_join_event(
 	sender_servername: &ServerName, room_id: &RoomId, pdu: &RawJsonValue,
 ) -> Result<create_join_event::v1::RoomState> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	if !services().rooms.metadata.exists(room_id)? {
 		return Err(Error::BadRequest(ErrorKind::NotFound, "Room is unknown to this server."));
 	}
@@ -1500,10 +1475,6 @@ pub async fn create_join_event_v2_route(
 ///
 /// Invites a remote user to a room.
 pub async fn create_invite_route(body: Ruma<create_invite::v2::Request>) -> Result<create_invite::v2::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
 
 	services().rooms.event_handler.acl_check(sender_servername, &body.room_id)?;
@@ -1587,7 +1558,7 @@ pub async fn create_invite_route(body: Ruma<create_invite::v2::Request>) -> Resu
 	let mut event: JsonObject = serde_json::from_str(body.event.get())
 		.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Invalid invite event bytes."))?;
 
-	event.insert("event_id".to_owned(), "$dummy".into());
+	event.insert("event_id".to_owned(), "$placeholder".into());
 
 	let pdu: PduEvent = serde_json::from_value(event.into()).map_err(|e| {
 		warn!("Invalid invite event: {}", e);
@@ -1622,10 +1593,6 @@ pub async fn create_invite_route(body: Ruma<create_invite::v2::Request>) -> Resu
 ///
 /// Gets information on all devices of the user.
 pub async fn get_devices_route(body: Ruma<get_devices::v1::Request>) -> Result<get_devices::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	if body.user_id.server_name() != services().globals.server_name() {
 		return Err(Error::BadRequest(
 			ErrorKind::InvalidParam,
@@ -1673,10 +1640,6 @@ pub async fn get_devices_route(body: Ruma<get_devices::v1::Request>) -> Result<g
 pub async fn get_room_information_route(
 	body: Ruma<get_room_information::v1::Request>,
 ) -> Result<get_room_information::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	let room_id = services()
 		.rooms
 		.alias
@@ -1695,10 +1658,6 @@ pub async fn get_room_information_route(
 pub async fn get_profile_information_route(
 	body: Ruma<get_profile_information::v1::Request>,
 ) -> Result<get_profile_information::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	if body.user_id.server_name() != services().globals.server_name() {
 		return Err(Error::BadRequest(
 			ErrorKind::InvalidParam,
@@ -1738,10 +1697,6 @@ pub async fn get_profile_information_route(
 ///
 /// Gets devices and identity keys for the given users.
 pub async fn get_keys_route(body: Ruma<get_keys::v1::Request>) -> Result<get_keys::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	if body.device_keys.iter().any(|(u, _)| u.server_name() != services().globals.server_name()) {
 		return Err(Error::BadRequest(
 			ErrorKind::InvalidParam,
@@ -1768,10 +1723,6 @@ pub async fn get_keys_route(body: Ruma<get_keys::v1::Request>) -> Result<get_key
 ///
 /// Claims one-time keys.
 pub async fn claim_keys_route(body: Ruma<claim_keys::v1::Request>) -> Result<claim_keys::v1::Response> {
-	if !services().globals.allow_federation() {
-		return Err(Error::bad_config("Federation is disabled."));
-	}
-
 	if body.one_time_keys.iter().any(|(u, _)| u.server_name() != services().globals.server_name()) {
 		return Err(Error::BadRequest(
 			ErrorKind::InvalidParam,
@@ -1788,6 +1739,10 @@ pub async fn claim_keys_route(body: Ruma<claim_keys::v1::Request>) -> Result<cla
 
 /// # `GET /.well-known/matrix/server`
 pub async fn well_known_server_route() -> Result<impl IntoResponse> {
+	if !services().globals.allow_federation() {
+		return Err(Error::bad_config("Federation is disabled."));
+	}
+
 	let server_url = match services().globals.well_known_server() {
 		Some(url) => url.clone(),
 		None => return Err(Error::BadRequest(ErrorKind::NotFound, "Not found.")),
@@ -1798,6 +1753,20 @@ pub async fn well_known_server_route() -> Result<impl IntoResponse> {
 	})))
 }
 
+/// # `GET /_matrix/federation/v1/hierarchy/{roomId}`
+///
+/// Gets the space tree in a depth-first manner to locate child rooms of a given
+/// space.
+pub async fn get_hierarchy_route(body: Ruma<get_hierarchy::v1::Request>) -> Result<get_hierarchy::v1::Response> {
+	let sender_servername = body.sender_servername.as_ref().expect("server is authenticated");
+
+	if services().rooms.metadata.exists(&body.room_id)? {
+		services().rooms.spaces.get_federation_hierarchy(&body.room_id, sender_servername, body.suggested_only).await
+	} else {
+		Err(Error::BadRequest(ErrorKind::NotFound, "Room does not exist."))
+	}
+}
+
 #[cfg(test)]
 mod tests {
 	use super::{add_port_to_hostname, get_ip_with_port, FedDest};

src/clap.rs

@@ -2,7 +2,7 @@
 
 use std::path::PathBuf;
 
-use clap::Parser;
+use clap::{Parser, Subcommand};
 
 /// Commandline arguments
 #[derive(Parser, Debug)]
@@ -11,6 +11,43 @@ pub struct Args {
 	#[arg(short, long)]
 	/// Optional argument to the path of a conduwuit config TOML file
 	pub config: Option<PathBuf>,
+
+	#[clap(subcommand)]
+	/// Optional subcommand to export the homeserver signing key and exit
+	pub signing_key: Option<SigningKey>,
+}
+
+#[derive(Debug, Subcommand)]
+pub enum SigningKey {
+	/// Filesystem path to export the homeserver signing key to.
+	/// The output will be: `ed25519 <version> <keypair base64 encoded>` which
+	/// is Synapse's format
+	ExportPath {
+		path: PathBuf,
+	},
+
+	/// Filesystem path for conduwuit to attempt to read and import the
+	/// homeserver signing key. The expected format is Synapse's format:
+	/// `ed25519 <version> <keypair base64 encoded>`
+	ImportPath {
+		path: PathBuf,
+
+		#[arg(long)]
+		/// Optional argument to import the key but don't overwrite our signing
+		/// key, and instead add it to `old_verify_keys`. This field tells other
+		/// servers that this is our old public key that can still be used to
+		/// sign old events.
+		///
+		/// See https://spec.matrix.org/v1.9/server-server-api/#get_matrixkeyv2server for more details.
+		add_to_old_public_keys: bool,
+
+		#[arg(long)]
+		/// Timestamp (`expired_ts`) in seconds since UNIX epoch that the old
+		/// homeserver signing key stopped being used.
+		///
+		/// See https://spec.matrix.org/v1.9/server-server-api/#get_matrixkeyv2server for more details.
+		timestamp: u64,
+	},
 }
 
 /// Parse commandline arguments into structured data

src/config/mod.rs

@@ -144,6 +144,9 @@ pub struct Config {
 	#[serde(default = "default_presence_offline_timeout_s")]
 	pub presence_offline_timeout_s: u64,
 
+	#[serde(default = "true_fn")]
+	pub allow_incoming_read_receipts: bool,
+
 	#[serde(default)]
 	pub zstd_compression: bool,
 
@@ -282,6 +285,10 @@ impl fmt::Display for Config {
 				"Allow local presence requests (updates)",
 				&self.allow_local_presence.to_string(),
 			),
+			(
+				"Allow incoming remote read receipts",
+				&self.allow_incoming_read_receipts.to_string(),
+			),
 			(
 				"Block non-admin room invites (local and remote, admins can still send and receive invites)",
 				&self.block_non_admin_invites.to_string(),

src/database/abstraction.rs

@@ -43,6 +43,10 @@ pub(crate) trait KvTree: Send + Sync {
 
 	fn remove(&self, key: &[u8]) -> Result<()>;
 
+	#[allow(dead_code)]
+	#[cfg(feature = "rocksdb")]
+	fn remove_batch(&self, _iter: &mut dyn Iterator<Item = Vec<u8>>) -> Result<()> { unimplemented!() }
+
 	fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a>;
 
 	fn iter_from<'a>(&'a self, from: &[u8], backwards: bool) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a>;

src/database/abstraction/rocksdb.rs

@@ -101,7 +101,6 @@ fn db_options(rocksdb_cache: &rust_rocksdb::Cache, config: &Config) -> rust_rock
 		threads.try_into().expect("Failed to convert \"rocksdb_parallelism_threads\" usize into i32"),
 	);
 	db_opts.set_compression_type(rocksdb_compression_algo);
-	db_opts.optimize_level_style_compaction(10 * 1024 * 1024);
 
 	// https://github.com/facebook/rocksdb/wiki/Setup-Options-and-Basic-Tuning
 	db_opts.set_level_compaction_dynamic_level_bytes(true);
@@ -252,6 +251,18 @@ impl KvTree for RocksDbEngineTree<'_> {
 		Ok(self.db.rocks.delete_cf_opt(&self.cf(), key, &writeoptions)?)
 	}
 
+	fn remove_batch(&self, iter: &mut dyn Iterator<Item = Vec<u8>>) -> Result<()> {
+		let writeoptions = rust_rocksdb::WriteOptions::default();
+
+		let mut batch = WriteBatchWithTransaction::<false>::default();
+
+		for key in iter {
+			batch.delete_cf(&self.cf(), key);
+		}
+
+		Ok(self.db.rocks.write_opt(batch, &writeoptions)?)
+	}
+
 	fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a> {
 		let mut readoptions = rust_rocksdb::ReadOptions::default();
 		readoptions.set_total_order_seek(true);

src/database/key_value/globals.rs

@@ -8,6 +8,7 @@ use ruma::{
 	signatures::Ed25519KeyPair,
 	DeviceId, MilliSecondsSinceUnixEpoch, OwnedServerSigningKeyId, ServerName, UserId,
 };
+use tracing::debug;
 
 use crate::{database::KeyValueDatabase, service, services, utils, Error, Result};
 
@@ -52,7 +53,7 @@ impl service::globals::Data for KeyValueDatabase {
 
 		let mut futures = FuturesUnordered::new();
 
-		// Return when *any* user changed his key
+		// Return when *any* user changed their key
 		// TODO: only send for user they share a room with
 		futures.push(self.todeviceid_events.watch_prefix(&userdeviceid_prefix));
 
@@ -185,7 +186,9 @@ lasttimelinecount_cache: {lasttimelinecount_cache}\n"
 	fn load_keypair(&self) -> Result<Ed25519KeyPair> {
 		let keypair_bytes = self.global.get(b"keypair")?.map_or_else(
 			|| {
+				debug!("No keypair found in database, assuming this is a new deployment and generating one.");
 				let keypair = utils::generate_keypair();
+				debug!("Generated keypair bytes: {:?}", keypair);
 				self.global.insert(b"keypair", &keypair)?;
 				Ok::<_, Error>(keypair)
 			},
@@ -200,6 +203,7 @@ lasttimelinecount_cache: {lasttimelinecount_cache}\n"
 		)
 		.map_err(|_| Error::bad_database("Invalid version bytes in keypair."))
 		.and_then(|version| {
+			debug!("Keypair version: {version}");
 			// 2. key
 			parts
 				.next()
@@ -207,8 +211,11 @@ lasttimelinecount_cache: {lasttimelinecount_cache}\n"
 				.map(|key| (version, key))
 		})
 		.and_then(|(version, key)| {
-			Ed25519KeyPair::from_der(key, version)
-				.map_err(|_| Error::bad_database("Private or public keys are invalid."))
+			debug!("Keypair bytes: {:?}", key);
+			let keypair = Ed25519KeyPair::from_der(key, version)
+				.map_err(|_| Error::bad_database("Private or public keys are invalid."));
+			debug!("Private and public key: {keypair:?}");
+			keypair
 		})
 	}
 

src/database/key_value/media.rs

@@ -4,12 +4,14 @@ use tracing::debug;
 use crate::{
 	database::KeyValueDatabase,
 	service::{self, media::UrlPreviewData},
-	utils, Error, Result,
+	utils::string_from_bytes,
+	Error, Result,
 };
 
 impl service::media::Data for KeyValueDatabase {
 	fn create_file_metadata(
-		&self, mxc: String, width: u32, height: u32, content_disposition: Option<&str>, content_type: Option<&str>,
+		&self, sender_user: Option<&str>, mxc: String, width: u32, height: u32, content_disposition: Option<&str>,
+		content_type: Option<&str>,
 	) -> Result<Vec<u8>> {
 		let mut key = mxc.as_bytes().to_vec();
 		key.push(0xFF);
@@ -22,6 +24,12 @@ impl service::media::Data for KeyValueDatabase {
 
 		self.mediaid_file.insert(&key, &[])?;
 
+		if let Some(user) = sender_user {
+			let key = mxc.as_bytes().to_vec();
+			let user = user.as_bytes().to_vec();
+			self.mediaid_user.insert(&key, &user)?;
+		}
+
 		Ok(key)
 	}
 
@@ -31,13 +39,22 @@ impl service::media::Data for KeyValueDatabase {
 		let mut prefix = mxc.as_bytes().to_vec();
 		prefix.push(0xFF);
 
-		debug!("MXC db prefix: {:?}", prefix);
+		debug!("MXC db prefix: {prefix:?}");
 
 		for (key, _) in self.mediaid_file.scan_prefix(prefix) {
 			debug!("Deleting key: {:?}", key);
 			self.mediaid_file.remove(&key)?;
 		}
 
+		for (key, value) in self.mediaid_user.scan_prefix(mxc.as_bytes().to_vec()) {
+			if key == mxc.as_bytes().to_vec() {
+				let user = string_from_bytes(&value).unwrap_or_default();
+
+				debug!("Deleting key \"{key:?}\" which was uploaded by user {user}");
+				self.mediaid_user.remove(&key)?;
+			}
+		}
+
 		Ok(())
 	}
 
@@ -85,7 +102,7 @@ impl service::media::Data for KeyValueDatabase {
 		let content_type = parts
 			.next()
 			.map(|bytes| {
-				utils::string_from_bytes(bytes)
+				string_from_bytes(bytes)
 					.map_err(|_| Error::bad_database("Content type in mediaid_file is invalid unicode."))
 			})
 			.transpose()?;
@@ -97,7 +114,7 @@ impl service::media::Data for KeyValueDatabase {
 			None
 		} else {
 			Some(
-				utils::string_from_bytes(content_disposition_bytes)
+				string_from_bytes(content_disposition_bytes)
 					.map_err(|_| Error::bad_database("Content Disposition in mediaid_file is invalid unicode."))?,
 			)
 		};

src/database/key_value/rooms/state_cache.rs

@@ -268,6 +268,7 @@ impl service::rooms::state_cache::Data for KeyValueDatabase {
 		}))
 	}
 
+	/// Returns the number of users which are currently in a room
 	#[tracing::instrument(skip(self))]
 	fn room_joined_count(&self, room_id: &RoomId) -> Result<Option<u64>> {
 		self.roomid_joinedcount
@@ -276,6 +277,7 @@ impl service::rooms::state_cache::Data for KeyValueDatabase {
 			.transpose()
 	}
 
+	/// Returns the number of users which are currently invited to a room
 	#[tracing::instrument(skip(self))]
 	fn room_invited_count(&self, room_id: &RoomId) -> Result<Option<u64>> {
 		self.roomid_invitedcount

src/database/key_value/sending.rs

@@ -90,6 +90,10 @@ impl service::sending::Data for KeyValueDatabase {
 
 	fn mark_as_active(&self, events: &[(SendingEventType, Vec<u8>)]) -> Result<()> {
 		for (e, key) in events {
+			if key.is_empty() {
+				continue;
+			}
+
 			let value = if let SendingEventType::Edu(value) = &e {
 				&**value
 			} else {

src/database/mod.rs

@@ -157,6 +157,7 @@ pub struct KeyValueDatabase {
 	//pub media: media::Media,
 	pub(super) mediaid_file: Arc<dyn KvTree>, // MediaId = MXC + WidthHeight + ContentDisposition + ContentType
 	pub(super) url_previews: Arc<dyn KvTree>,
+	pub(super) mediaid_user: Arc<dyn KvTree>,
 	//pub key_backups: key_backups::KeyBackups,
 	pub(super) backupid_algorithm: Arc<dyn KvTree>, // BackupId = UserId + Version(Count)
 	pub(super) backupid_etag: Arc<dyn KvTree>,      // BackupId = UserId + Version(Count)
@@ -365,6 +366,7 @@ impl KeyValueDatabase {
 			roomusertype_roomuserdataid: builder.open_tree("roomusertype_roomuserdataid")?,
 			mediaid_file: builder.open_tree("mediaid_file")?,
 			url_previews: builder.open_tree("url_previews")?,
+			mediaid_user: builder.open_tree("mediaid_user")?,
 			backupid_algorithm: builder.open_tree("backupid_algorithm")?,
 			backupid_etag: builder.open_tree("backupid_etag")?,
 			backupkeyid_backup: builder.open_tree("backupkeyid_backup")?,
@@ -931,8 +933,13 @@ impl KeyValueDatabase {
 			{
 				let patterns = &services().globals.config.forbidden_usernames;
 				if !patterns.is_empty() {
-					for user in services().users.iter() {
-						let user_id = user?;
+					for user_id in services()
+						.users
+						.iter()
+						.filter_map(std::result::Result::ok)
+						.filter(|user| !services().users.is_deactivated(user).unwrap_or(true))
+						.filter(|user| user.server_name() == services().globals.server_name())
+					{
 						let matches = patterns.matches(user_id.localpart());
 						if matches.matched_any() {
 							warn!(

src/main.rs

@@ -15,8 +15,12 @@ use axum::{
 use axum_server::{bind, bind_rustls, tls_rustls::RustlsConfig, Handle as ServerHandle};
 #[cfg(feature = "axum_dual_protocol")]
 use axum_server_dual_protocol::ServerExt;
-use conduit::api::{client_server, server_server};
+use base64::{engine::general_purpose, Engine as _};
 pub use conduit::*; // Re-export everything from the library crate
+use conduit::{
+	api::{client_server, server_server},
+	clap::{Args, SigningKey},
+};
 use either::Either::{Left, Right};
 use figment::{
 	providers::{Env, Format, Toml},
@@ -28,12 +32,15 @@ use http::{
 };
 #[cfg(unix)]
 use hyperlocal::SocketIncoming;
-use ruma::api::{
-	client::{
-		error::{Error as RumaError, ErrorBody, ErrorKind},
-		uiaa::UiaaResponse,
+use ruma::{
+	api::{
+		client::{
+			error::{Error as RumaError, ErrorBody, ErrorKind},
+			uiaa::UiaaResponse,
+		},
+		IncomingRequest,
 	},
-	IncomingRequest,
+	serde::Base64,
 };
 #[cfg(all(not(target_env = "msvc"), feature = "jemalloc"))]
 use tikv_jemallocator::Jemalloc;
@@ -73,7 +80,7 @@ async fn main() {
 	} else if args.config.is_some() {
 		Figment::new()
 			.merge(
-				Toml::file(args.config.expect(
+				Toml::file(args.config.as_ref().expect(
 					"conduwuit config commandline argument was specified, but appears to be invalid. This should be \
 					 set to the path of a valid TOML file.",
 				))
@@ -169,8 +176,16 @@ async fn main() {
 
 	let config = &services().globals.config;
 
-	/* ad-hoc config validation/checks */
+	/* homeserver signing keypair subcommand stuff */
+	if let Some(subcommands) = &args.signing_key {
+		if signing_key_operations(subcommands).await.is_ok() {
+			return;
+		}
+	}
 
+	debug!("Ed25519KeyPair: {:?}", services().globals.keypair());
+
+	/* ad-hoc config validation/checks */
 	if config.unix_socket_path.is_some() && !cfg!(unix) {
 		error!(
 			"UNIX socket support is only available on *nix platforms. Please remove \"unix_socket_path\" from your \
@@ -739,6 +754,7 @@ fn routes() -> Router {
 		.ruma_route(server_server::get_profile_information_route)
 		.ruma_route(server_server::get_keys_route)
 		.ruma_route(server_server::claim_keys_route)
+        .ruma_route(server_server::get_hierarchy_route)
 		.route("/_matrix/client/r0/rooms/:room_id/initialSync", get(initial_sync))
 		.route("/_matrix/client/v3/rooms/:room_id/initialSync", get(initial_sync))
 		.route("/client/server.json", get(client_server::syncv3_client_server_json))
@@ -911,3 +927,36 @@ fn maximize_fd_limit() -> Result<(), nix::errno::Errno> {
 
 	Ok(())
 }
+
+/// Homeserver signing key commands/operations
+async fn signing_key_operations(subcommands: &SigningKey) -> Result<()> {
+	match subcommands {
+		SigningKey::ExportPath {
+			path,
+		} => {
+			let mut file = tokio::fs::File::create(path).await?;
+			let mut content = String::new();
+
+			content.push_str("ed25519 ");
+
+			let version = services().globals.keypair().version();
+
+			content.push_str(version);
+			content.push(' ');
+
+			let keypair = services().globals.keypair();
+			debug!("Ed25519KeyPair: {:?}", keypair);
+
+			//let key_base64 = Base64::new(key);
+
+			Ok(())
+		},
+		SigningKey::ImportPath {
+			path,
+			add_to_old_public_keys,
+			timestamp,
+		} => {
+			unimplemented!()
+		},
+	}
+}

src/service/admin/mod.rs

@@ -396,6 +396,21 @@ enum DebugCommand {
 		server: Box<ServerName>,
 	},
 
+	/// - Gets all the room state events for the specified room.
+	///
+	/// This is functionally equivalent to `GET
+	/// /_matrix/client/v3/rooms/{roomid}/state`, except the admin command does
+	/// *not* check if the sender user is allowed to see state events. This is
+	/// done because it's implied that server admins here have database access
+	/// and can see/get room info themselves anyways if they were malicious
+	/// admins.
+	///
+	/// Of course the check is still done on the actual client API.
+	GetRoomState {
+		/// Room ID
+		room_id: Box<RoomId>,
+	},
+
 	/// - Forces device lists for all local and remote users to be updated (as
 	///   having new keys available)
 	ForceDeviceListUpdates,
@@ -458,60 +473,50 @@ impl Service {
 		let conduit_user = UserId::parse(format!("@conduit:{}", services().globals.server_name()))
 			.expect("@conduit:server_name is valid");
 
-		let conduit_room = services()
-			.rooms
-			.alias
-			.resolve_local_alias(
-				format!("#admins:{}", services().globals.server_name())
-					.as_str()
-					.try_into()
-					.expect("#admins:server_name is a valid room alias"),
-			)
-			.expect("Database data for admin room alias must be valid")
-			.expect("Admin room must exist");
+		if let Ok(Some(conduit_room)) = services().admin.get_admin_room() {
+			loop {
+				tokio::select! {
+					Some(event) = receiver.recv() => {
+						let (mut message_content, reply) = match event {
+							AdminRoomEvent::SendMessage(content) => (content, None),
+							AdminRoomEvent::ProcessMessage(room_message, reply_id) => {
+								(self.process_admin_message(room_message).await, Some(reply_id))
+							}
+						};
 
-		loop {
-			tokio::select! {
-				Some(event) = receiver.recv() => {
-					let (mut message_content, reply) = match event {
-						AdminRoomEvent::SendMessage(content) => (content, None),
-						AdminRoomEvent::ProcessMessage(room_message, reply_id) => {
-							(self.process_admin_message(room_message).await, Some(reply_id))
+						let mutex_state = Arc::clone(
+							services().globals
+								.roomid_mutex_state
+								.write()
+								.await
+								.entry(conduit_room.clone())
+								.or_default(),
+						);
+
+						let state_lock = mutex_state.lock().await;
+
+						if let Some(reply) = reply {
+							message_content.relates_to = Some(Reply { in_reply_to: InReplyTo { event_id: reply.into() } });
 						}
-					};
 
-					let mutex_state = Arc::clone(
-						services().globals
-							.roomid_mutex_state
-							.write()
-							.await
-							.entry(conduit_room.clone())
-							.or_default(),
-					);
+					services().rooms.timeline.build_and_append_pdu(
+						PduBuilder {
+						  event_type: TimelineEventType::RoomMessage,
+						  content: to_raw_value(&message_content)
+							  .expect("event is valid, we just created it"),
+						  unsigned: None,
+						  state_key: None,
+						  redacts: None,
+						},
+						&conduit_user,
+						&conduit_room,
+						&state_lock)
+					  .await
+					  .unwrap();
 
-					let state_lock = mutex_state.lock().await;
 
-					if let Some(reply) = reply {
-						message_content.relates_to = Some(Reply { in_reply_to: InReplyTo { event_id: reply.into() } });
+						drop(state_lock);
 					}
-
-				services().rooms.timeline.build_and_append_pdu(
-					PduBuilder {
-					  event_type: TimelineEventType::RoomMessage,
-					  content: to_raw_value(&message_content)
-						  .expect("event is valid, we just created it"),
-					  unsigned: None,
-					  state_key: None,
-					  redacts: None,
-					},
-					&conduit_user,
-					&conduit_room,
-					&state_lock)
-				  .await
-				  .unwrap();
-
-
-					drop(state_lock);
 				}
 			}
 		}
@@ -1096,14 +1101,13 @@ impl Service {
 								format!("#admins:{}", services().globals.server_name())
 									.try_into()
 									.expect("#admins:server_name is a valid alias name");
-							let admin_room_id = services()
-								.rooms
-								.alias
-								.resolve_local_alias(&admin_room_alias)?
-								.expect("Admin room must exist");
 
-							if room.to_string().eq(&admin_room_id) || room.to_string().eq(&admin_room_alias) {
-								return Ok(RoomMessageEventContent::text_plain("Not allowed to ban the admin room."));
+							if let Some(admin_room_id) = services().admin.get_admin_room()? {
+								if room.to_string().eq(&admin_room_id) || room.to_string().eq(&admin_room_alias) {
+									return Ok(RoomMessageEventContent::text_plain(
+										"Not allowed to ban the admin room.",
+									));
+								}
 							}
 
 							let room_id = if room.is_room_id() {
@@ -1267,23 +1271,15 @@ impl Service {
 								let mut room_ban_count = 0;
 								let mut room_ids: Vec<&RoomId> = Vec::new();
 
-								let admin_room_alias: Box<RoomAliasId> =
-									format!("#admins:{}", services().globals.server_name())
-										.try_into()
-										.expect("#admins:server_name is a valid alias name");
-								let admin_room_id = services()
-									.rooms
-									.alias
-									.resolve_local_alias(&admin_room_alias)?
-									.expect("Admin room must exist");
-
 								for &room_id in &rooms_s {
 									match <&RoomId>::try_from(room_id) {
 										Ok(owned_room_id) => {
 											// silently ignore deleting admin room
-											if owned_room_id.eq(&admin_room_id) {
-												info!("User specified admin room in bulk ban list, ignoring");
-												continue;
+											if let Some(admin_room_id) = services().admin.get_admin_room()? {
+												if owned_room_id.eq(&admin_room_id) {
+													info!("User specified admin room in bulk ban list, ignoring");
+													continue;
+												}
 											}
 
 											room_ids.push(owned_room_id);
@@ -2061,6 +2057,41 @@ impl Service {
 						},
 					}
 				},
+				DebugCommand::GetRoomState {
+					room_id,
+				} => {
+					let room_state = services()
+						.rooms
+						.state_accessor
+						.room_state_full(&room_id)
+						.await?
+						.values()
+						.map(|pdu| pdu.to_state_event())
+						.collect::<Vec<_>>();
+
+					if room_state.is_empty() {
+						return Ok(RoomMessageEventContent::text_plain(
+							"Unable to find room state in our database (vector is empty)",
+						));
+					}
+
+					let json_text = serde_json::to_string_pretty(&room_state).map_err(|e| {
+						error!("Failed converting room state vector in our database to pretty JSON: {e}");
+						Error::bad_database(
+							"Failed to convert room state events to pretty JSON, possible invalid room state events \
+							 in our database",
+						)
+					})?;
+
+					return Ok(RoomMessageEventContent::text_html(
+						format!("{}\n```json\n{}\n```", "Found full room state", json_text),
+						format!(
+							"<p>{}</p>\n<pre><code class=\"language-json\">{}\n</code></pre>\n",
+							"Found full room state",
+							HtmlEscape(&json_text)
+						),
+					));
+				},
 				DebugCommand::ForceDeviceListUpdates => {
 					// Force E2EE device list updates for all users
 					for user_id in services().users.iter().filter_map(std::result::Result::ok) {
@@ -2393,105 +2424,113 @@ impl Service {
 		Ok(())
 	}
 
+	/// Gets the room ID of the admin room
+	///
+	/// Errors are propagated from the database, and will have None if there is
+	/// no admin room
+	pub(crate) fn get_admin_room(&self) -> Result<Option<OwnedRoomId>> {
+		let admin_room_alias: Box<RoomAliasId> = format!("#admins:{}", services().globals.server_name())
+			.try_into()
+			.expect("#admins:server_name is a valid alias name");
+
+		services().rooms.alias.resolve_local_alias(&admin_room_alias)
+	}
+
 	/// Invite the user to the conduit admin room.
 	///
 	/// In conduit, this is equivalent to granting admin privileges.
 	pub(crate) async fn make_user_admin(&self, user_id: &UserId, displayname: String) -> Result<()> {
-		let admin_room_alias: Box<RoomAliasId> = format!("#admins:{}", services().globals.server_name())
-			.try_into()
-			.expect("#admins:server_name is a valid alias name");
-		let room_id = services().rooms.alias.resolve_local_alias(&admin_room_alias)?.expect("Admin room must exist");
+		if let Some(room_id) = services().admin.get_admin_room()? {
+			let mutex_state =
+				Arc::clone(services().globals.roomid_mutex_state.write().await.entry(room_id.clone()).or_default());
+			let state_lock = mutex_state.lock().await;
 
-		let mutex_state =
-			Arc::clone(services().globals.roomid_mutex_state.write().await.entry(room_id.clone()).or_default());
-		let state_lock = mutex_state.lock().await;
+			// Use the server user to grant the new admin's power level
+			let conduit_user = UserId::parse_with_server_name("conduit", services().globals.server_name())
+				.expect("@conduit:server_name is valid");
 
-		// Use the server user to grant the new admin's power level
-		let conduit_user = UserId::parse_with_server_name("conduit", services().globals.server_name())
-			.expect("@conduit:server_name is valid");
+			// Invite and join the real user
+			services()
+				.rooms
+				.timeline
+				.build_and_append_pdu(
+					PduBuilder {
+						event_type: TimelineEventType::RoomMember,
+						content: to_raw_value(&RoomMemberEventContent {
+							membership: MembershipState::Invite,
+							displayname: None,
+							avatar_url: None,
+							is_direct: None,
+							third_party_invite: None,
+							blurhash: None,
+							reason: None,
+							join_authorized_via_users_server: None,
+						})
+						.expect("event is valid, we just created it"),
+						unsigned: None,
+						state_key: Some(user_id.to_string()),
+						redacts: None,
+					},
+					&conduit_user,
+					&room_id,
+					&state_lock,
+				)
+				.await?;
+			services()
+				.rooms
+				.timeline
+				.build_and_append_pdu(
+					PduBuilder {
+						event_type: TimelineEventType::RoomMember,
+						content: to_raw_value(&RoomMemberEventContent {
+							membership: MembershipState::Join,
+							displayname: Some(displayname),
+							avatar_url: None,
+							is_direct: None,
+							third_party_invite: None,
+							blurhash: None,
+							reason: None,
+							join_authorized_via_users_server: None,
+						})
+						.expect("event is valid, we just created it"),
+						unsigned: None,
+						state_key: Some(user_id.to_string()),
+						redacts: None,
+					},
+					user_id,
+					&room_id,
+					&state_lock,
+				)
+				.await?;
 
-		// Invite and join the real user
-		services()
-			.rooms
-			.timeline
-			.build_and_append_pdu(
-				PduBuilder {
-					event_type: TimelineEventType::RoomMember,
-					content: to_raw_value(&RoomMemberEventContent {
-						membership: MembershipState::Invite,
-						displayname: None,
-						avatar_url: None,
-						is_direct: None,
-						third_party_invite: None,
-						blurhash: None,
-						reason: None,
-						join_authorized_via_users_server: None,
-					})
-					.expect("event is valid, we just created it"),
-					unsigned: None,
-					state_key: Some(user_id.to_string()),
-					redacts: None,
-				},
-				&conduit_user,
-				&room_id,
-				&state_lock,
-			)
-			.await?;
-		services()
-			.rooms
-			.timeline
-			.build_and_append_pdu(
-				PduBuilder {
-					event_type: TimelineEventType::RoomMember,
-					content: to_raw_value(&RoomMemberEventContent {
-						membership: MembershipState::Join,
-						displayname: Some(displayname),
-						avatar_url: None,
-						is_direct: None,
-						third_party_invite: None,
-						blurhash: None,
-						reason: None,
-						join_authorized_via_users_server: None,
-					})
-					.expect("event is valid, we just created it"),
-					unsigned: None,
-					state_key: Some(user_id.to_string()),
-					redacts: None,
-				},
-				user_id,
-				&room_id,
-				&state_lock,
-			)
-			.await?;
+			// Set power level
+			let mut users = BTreeMap::new();
+			users.insert(conduit_user.clone(), 100.into());
+			users.insert(user_id.to_owned(), 100.into());
 
-		// Set power level
-		let mut users = BTreeMap::new();
-		users.insert(conduit_user.clone(), 100.into());
-		users.insert(user_id.to_owned(), 100.into());
+			services()
+				.rooms
+				.timeline
+				.build_and_append_pdu(
+					PduBuilder {
+						event_type: TimelineEventType::RoomPowerLevels,
+						content: to_raw_value(&RoomPowerLevelsEventContent {
+							users,
+							..Default::default()
+						})
+						.expect("event is valid, we just created it"),
+						unsigned: None,
+						state_key: Some("".to_owned()),
+						redacts: None,
+					},
+					&conduit_user,
+					&room_id,
+					&state_lock,
+				)
+				.await?;
 
-		services()
-			.rooms
-			.timeline
-			.build_and_append_pdu(
-				PduBuilder {
-					event_type: TimelineEventType::RoomPowerLevels,
-					content: to_raw_value(&RoomPowerLevelsEventContent {
-						users,
-						..Default::default()
-					})
-					.expect("event is valid, we just created it"),
-					unsigned: None,
-					state_key: Some("".to_owned()),
-					redacts: None,
-				},
-				&conduit_user,
-				&room_id,
-				&state_lock,
-			)
-			.await?;
-
-		// Send welcome message
-		services().rooms.timeline.build_and_append_pdu(
+			// Send welcome message
+			services().rooms.timeline.build_and_append_pdu(
             PduBuilder {
                 event_type: TimelineEventType::RoomMessage,
                 content: to_raw_value(&RoomMessageEventContent::text_html(
@@ -2508,7 +2547,10 @@ impl Service {
             &state_lock,
         ).await?;
 
-		Ok(())
+			Ok(())
+		} else {
+			Ok(())
+		}
 	}
 }
 

src/service/globals/mod.rs

@@ -152,7 +152,7 @@ impl Service<'_> {
 		let keypair = match keypair {
 			Ok(k) => k,
 			Err(e) => {
-				error!("Keypair invalid. Deleting...");
+				error!("Homeserver signing keypair in database is invalid. Deleting...");
 				db.remove_keypair()?;
 				return Err(e);
 			},
@@ -359,6 +359,8 @@ impl Service<'_> {
 
 	pub fn presence_offline_timeout_s(&self) -> u64 { self.config.presence_offline_timeout_s }
 
+	pub fn allow_incoming_read_receipts(&self) -> bool { self.config.allow_incoming_read_receipts }
+
 	pub fn rocksdb_log_level(&self) -> &String { &self.config.rocksdb_log_level }
 
 	pub fn rocksdb_max_log_file_size(&self) -> usize { self.config.rocksdb_max_log_file_size }
@@ -495,6 +497,7 @@ fn reqwest_client_builder(config: &Config) -> Result<reqwest::ClientBuilder> {
 	});
 
 	let mut reqwest_client_builder = reqwest::Client::builder()
+		.trust_dns(true)
 		.pool_max_idle_per_host(0)
 		.connect_timeout(Duration::from_secs(60))
 		.timeout(Duration::from_secs(60 * 5))
@@ -522,6 +525,7 @@ fn url_preview_reqwest_client_builder(config: &Config) -> Result<reqwest::Client
 	});
 
 	let mut reqwest_client_builder = reqwest::Client::builder()
+		.trust_dns(true)
 		.pool_max_idle_per_host(0)
 		.connect_timeout(Duration::from_secs(60))
 		.timeout(Duration::from_secs(60 * 5))

src/service/media/data.rs

@@ -2,7 +2,8 @@ use crate::Result;
 
 pub trait Data: Send + Sync {
 	fn create_file_metadata(
-		&self, mxc: String, width: u32, height: u32, content_disposition: Option<&str>, content_type: Option<&str>,
+		&self, sender_user: Option<&str>, mxc: String, width: u32, height: u32, content_disposition: Option<&str>,
+		content_type: Option<&str>,
 	) -> Result<Vec<u8>>;
 
 	fn delete_file_mxc(&self, mxc: String) -> Result<()>;

src/service/media/mod.rs

@@ -3,7 +3,7 @@ use std::{collections::HashMap, io::Cursor, sync::Arc, time::SystemTime};
 
 pub(crate) use data::Data;
 use image::imageops::FilterType;
-use ruma::OwnedMxcUri;
+use ruma::{OwnedMxcUri, OwnedUserId};
 use serde::Serialize;
 use tokio::{
 	fs::{self, File},
@@ -45,10 +45,15 @@ pub struct Service {
 impl Service {
 	/// Uploads a file.
 	pub async fn create(
-		&self, mxc: String, content_disposition: Option<&str>, content_type: Option<&str>, file: &[u8],
+		&self, sender_user: Option<OwnedUserId>, mxc: String, content_disposition: Option<&str>,
+		content_type: Option<&str>, file: &[u8],
 	) -> Result<()> {
 		// Width, Height = 0 if it's not a thumbnail
-		let key = self.db.create_file_metadata(mxc, 0, 0, content_disposition, content_type)?;
+		let key = if let Some(user) = sender_user {
+			self.db.create_file_metadata(Some(user.as_str()), mxc, 0, 0, content_disposition, content_type)?
+		} else {
+			self.db.create_file_metadata(None, mxc, 0, 0, content_disposition, content_type)?
+		};
 
 		let path;
 
@@ -106,11 +111,17 @@ impl Service {
 	}
 
 	/// Uploads or replaces a file thumbnail.
+	#[allow(clippy::too_many_arguments)]
 	pub async fn upload_thumbnail(
-		&self, mxc: String, content_disposition: Option<&str>, content_type: Option<&str>, width: u32, height: u32,
-		file: &[u8],
+		&self, sender_user: Option<OwnedUserId>, mxc: String, content_disposition: Option<&str>,
+		content_type: Option<&str>, width: u32, height: u32, file: &[u8],
 	) -> Result<()> {
-		let key = self.db.create_file_metadata(mxc, width, height, content_disposition, content_type)?;
+		let key = if let Some(user) = sender_user {
+			self.db.create_file_metadata(Some(user.as_str()), mxc, width, height, content_disposition, content_type)?
+		} else {
+			self.db.create_file_metadata(None, mxc, width, height, content_disposition, content_type)?
+		};
+
 		let path;
 
 		#[allow(clippy::unnecessary_operation)] // error[E0658]: attributes on expressions are experimental
@@ -183,8 +194,8 @@ impl Service {
 				debug!("Full MXC key from database: {:?}", key);
 
 				// we need to get the MXC URL from the first part of the key (the first 0xff /
-				// 255 push) this code does look kinda crazy but blame conduit for using magic
-				// keys
+				// 255 push). this is all necessary because of conduit using magic keys for
+				// media
 				let mut parts = key.split(|&b| b == 0xFF);
 				let mxc = parts
 					.next()
@@ -403,6 +414,7 @@ impl Service {
 
 				// Save thumbnail in database so we don't have to generate it again next time
 				let thumbnail_key = self.db.create_file_metadata(
+					None,
 					mxc,
 					width,
 					height,

src/service/mod.rs

@@ -134,7 +134,7 @@ impl Services<'_> {
 					db,
 				},
 				spaces: rooms::spaces::Service {
-					roomid_spacechunk_cache: Mutex::new(LruCache::new(
+					roomid_spacehierarchy_cache: Mutex::new(LruCache::new(
 						(100.0 * config.conduit_cache_capacity_modifier) as usize,
 					)),
 				},
@@ -175,7 +175,7 @@ impl Services<'_> {
 		let user_visibility_cache = self.rooms.state_accessor.user_visibility_cache.lock().unwrap().len();
 		let stateinfo_cache = self.rooms.state_compressor.stateinfo_cache.lock().unwrap().len();
 		let lasttimelinecount_cache = self.rooms.timeline.lasttimelinecount_cache.lock().await.len();
-		let roomid_spacechunk_cache = self.rooms.spaces.roomid_spacechunk_cache.lock().await.len();
+		let roomid_spacehierarchy_cache = self.rooms.spaces.roomid_spacehierarchy_cache.lock().await.len();
 
 		format!(
 			"\
@@ -184,7 +184,7 @@ server_visibility_cache: {server_visibility_cache}
 user_visibility_cache: {user_visibility_cache}
 stateinfo_cache: {stateinfo_cache}
 lasttimelinecount_cache: {lasttimelinecount_cache}
-roomid_spacechunk_cache: {roomid_spacechunk_cache}"
+roomid_spacehierarchy_cache: {roomid_spacehierarchy_cache}"
 		)
 	}
 
@@ -205,7 +205,13 @@ roomid_spacechunk_cache: {roomid_spacechunk_cache}"
 			self.rooms.timeline.lasttimelinecount_cache.lock().await.clear();
 		}
 		if amount > 5 {
-			self.rooms.spaces.roomid_spacechunk_cache.lock().await.clear();
+			self.rooms.spaces.roomid_spacehierarchy_cache.lock().await.clear();
+		}
+		if amount > 6 {
+			self.globals.tls_name_override.write().unwrap().clear();
+		}
+		if amount > 7 {
+			self.globals.dns_resolver().clear_cache();
 		}
 	}
 }

src/service/rooms/state/mod.rs

@@ -74,7 +74,7 @@ impl Service {
 						.await?;
 				},
 				TimelineEventType::SpaceChild => {
-					services().rooms.spaces.roomid_spacechunk_cache.lock().await.remove(&pdu.room_id);
+					services().rooms.spaces.roomid_spacehierarchy_cache.lock().await.remove(&pdu.room_id);
 				},
 				_ => continue,
 			}

src/service/rooms/timeline/mod.rs

@@ -26,7 +26,7 @@ use ruma::{
 	state_res,
 	state_res::{Event, RoomVersion},
 	uint, user_id, CanonicalJsonObject, CanonicalJsonValue, EventId, OwnedEventId, OwnedRoomId, OwnedServerName,
-	RoomAliasId, RoomId, RoomVersionId, ServerName, UserId,
+	RoomId, RoomVersionId, ServerName, UserId,
 };
 use serde::Deserialize;
 use serde_json::value::{to_raw_value, RawValue as RawJsonValue};
@@ -418,7 +418,7 @@ impl Service {
 			},
 			TimelineEventType::SpaceChild => {
 				if let Some(_state_key) = &pdu.state_key {
-					services().rooms.spaces.roomid_spacechunk_cache.lock().await.remove(&pdu.room_id);
+					services().rooms.spaces.roomid_spacehierarchy_cache.lock().await.remove(&pdu.room_id);
 				}
 			},
 			TimelineEventType::RoomMember => {
@@ -461,10 +461,6 @@ impl Service {
 				if let Some(body) = content.body {
 					services().rooms.search.index_pdu(shortroomid, &pdu_id, &body)?;
 
-					let admin_room = services().rooms.alias.resolve_local_alias(
-						<&RoomAliasId>::try_from(format!("#admins:{}", services().globals.server_name()).as_str())
-							.expect("#admins:server_name is a valid room alias"),
-					)?;
 					let server_user = format!("@conduit:{}", services().globals.server_name());
 
 					let to_conduit = body.starts_with(&format!("{server_user}: "))
@@ -477,8 +473,10 @@ impl Service {
 					// the administrator can execute commands as conduit
 					let from_conduit = pdu.sender == server_user && services().globals.emergency_password().is_none();
 
-					if to_conduit && !from_conduit && admin_room.as_ref() == Some(&pdu.room_id) {
-						services().admin.process_message(body, pdu.event_id.clone());
+					if let Some(admin_room) = services().admin.get_admin_room()? {
+						if to_conduit && !from_conduit && admin_room == pdu.room_id {
+							services().admin.process_message(body, pdu.event_id.clone());
+						}
 					}
 				}
 			},
@@ -720,84 +718,82 @@ impl Service {
 	) -> Result<Arc<EventId>> {
 		let (pdu, pdu_json) = self.create_hash_and_sign_event(pdu_builder, sender, room_id, state_lock)?;
 
-		let admin_room = services().rooms.alias.resolve_local_alias(
-			<&RoomAliasId>::try_from(format!("#admins:{}", services().globals.server_name()).as_str())
-				.expect("#admins:server_name is a valid room alias"),
-		)?;
-		if admin_room.filter(|v| v == room_id).is_some() {
-			match pdu.event_type() {
-				TimelineEventType::RoomEncryption => {
-					warn!("Encryption is not allowed in the admins room");
-					return Err(Error::BadRequest(
-						ErrorKind::Forbidden,
-						"Encryption is not allowed in the admins room.",
-					));
-				},
-				TimelineEventType::RoomMember => {
-					#[derive(Deserialize)]
-					struct ExtractMembership {
-						membership: MembershipState,
-					}
-
-					let target = pdu.state_key().filter(|v| v.starts_with('@')).unwrap_or(sender.as_str());
-					let server_name = services().globals.server_name();
-					let server_user = format!("@conduit:{server_name}");
-					let content = serde_json::from_str::<ExtractMembership>(pdu.content.get())
-						.map_err(|_| Error::bad_database("Invalid content in pdu."))?;
-
-					if content.membership == MembershipState::Leave {
-						if target == server_user {
-							warn!("Conduit user cannot leave from admins room");
-							return Err(Error::BadRequest(
-								ErrorKind::Forbidden,
-								"Conduit user cannot leave from admins room.",
-							));
+		if let Some(admin_room) = services().admin.get_admin_room()? {
+			if admin_room == room_id {
+				match pdu.event_type() {
+					TimelineEventType::RoomEncryption => {
+						warn!("Encryption is not allowed in the admins room");
+						return Err(Error::BadRequest(
+							ErrorKind::Forbidden,
+							"Encryption is not allowed in the admins room.",
+						));
+					},
+					TimelineEventType::RoomMember => {
+						#[derive(Deserialize)]
+						struct ExtractMembership {
+							membership: MembershipState,
 						}
 
-						let count = services()
-							.rooms
-							.state_cache
-							.room_members(room_id)
-							.filter_map(std::result::Result::ok)
-							.filter(|m| m.server_name() == server_name)
-							.filter(|m| m != target)
-							.count();
-						if count < 2 {
-							warn!("Last admin cannot leave from admins room");
-							return Err(Error::BadRequest(
-								ErrorKind::Forbidden,
-								"Last admin cannot leave from admins room.",
-							));
-						}
-					}
+						let target = pdu.state_key().filter(|v| v.starts_with('@')).unwrap_or(sender.as_str());
+						let server_name = services().globals.server_name();
+						let server_user = format!("@conduit:{server_name}");
+						let content = serde_json::from_str::<ExtractMembership>(pdu.content.get())
+							.map_err(|_| Error::bad_database("Invalid content in pdu."))?;
 
-					if content.membership == MembershipState::Ban && pdu.state_key().is_some() {
-						if target == server_user {
-							warn!("Conduit user cannot be banned in admins room");
-							return Err(Error::BadRequest(
-								ErrorKind::Forbidden,
-								"Conduit user cannot be banned in admins room.",
-							));
+						if content.membership == MembershipState::Leave {
+							if target == server_user {
+								warn!("Conduit user cannot leave from admins room");
+								return Err(Error::BadRequest(
+									ErrorKind::Forbidden,
+									"Conduit user cannot leave from admins room.",
+								));
+							}
+
+							let count = services()
+								.rooms
+								.state_cache
+								.room_members(room_id)
+								.filter_map(std::result::Result::ok)
+								.filter(|m| m.server_name() == server_name)
+								.filter(|m| m != target)
+								.count();
+							if count < 2 {
+								warn!("Last admin cannot leave from admins room");
+								return Err(Error::BadRequest(
+									ErrorKind::Forbidden,
+									"Last admin cannot leave from admins room.",
+								));
+							}
 						}
 
-						let count = services()
-							.rooms
-							.state_cache
-							.room_members(room_id)
-							.filter_map(std::result::Result::ok)
-							.filter(|m| m.server_name() == server_name)
-							.filter(|m| m != target)
-							.count();
-						if count < 2 {
-							warn!("Last admin cannot be banned in admins room");
-							return Err(Error::BadRequest(
-								ErrorKind::Forbidden,
-								"Last admin cannot be banned in admins room.",
-							));
+						if content.membership == MembershipState::Ban && pdu.state_key().is_some() {
+							if target == server_user {
+								warn!("Conduit user cannot be banned in admins room");
+								return Err(Error::BadRequest(
+									ErrorKind::Forbidden,
+									"Conduit user cannot be banned in admins room.",
+								));
+							}
+
+							let count = services()
+								.rooms
+								.state_cache
+								.room_members(room_id)
+								.filter_map(std::result::Result::ok)
+								.filter(|m| m.server_name() == server_name)
+								.filter(|m| m != target)
+								.count();
+							if count < 2 {
+								warn!("Last admin cannot be banned in admins room");
+								return Err(Error::BadRequest(
+									ErrorKind::Forbidden,
+									"Last admin cannot be banned in admins room.",
+								));
+							}
 						}
-					}
-				},
-				_ => {},
+					},
+					_ => {},
+				}
 			}
 		}
 
@@ -1007,12 +1003,12 @@ impl Service {
 					return Ok(());
 				},
 				Err(e) => {
-					warn!("{backfill_server} could not provide backfill: {e}");
+					warn!("{backfill_server} failed to provide backfill: {e}");
 				},
 			}
 		}
 
-		info!("No servers could backfill");
+		info!("No servers could backfill, but backfill was needed");
 		Ok(())
 	}
 

src/service/sending/mod.rs

@@ -25,7 +25,7 @@ use ruma::{
 	},
 	device_id,
 	events::{push_rules::PushRulesEvent, receipt::ReceiptType, AnySyncEphemeralRoomEvent, GlobalAccountDataEventType},
-	push, uint, MilliSecondsSinceUnixEpoch, OwnedServerName, OwnedUserId, ServerName, UInt, UserId,
+	push, uint, MilliSecondsSinceUnixEpoch, OwnedServerName, OwnedUserId, RoomId, ServerName, UInt, UserId,
 };
 use tokio::{
 	select,
@@ -80,6 +80,7 @@ impl OutgoingKind {
 pub enum SendingEventType {
 	Pdu(Vec<u8>), // pduid
 	Edu(Vec<u8>), // pdu json
+	Flush,        // none
 }
 
 pub struct Service {
@@ -237,9 +238,11 @@ impl Service {
 				events.push(e);
 			}
 		} else {
-			self.db.mark_as_active(&new_events)?;
-			for (e, _) in new_events {
-				events.push(e);
+			if !new_events.is_empty() {
+				self.db.mark_as_active(&new_events)?;
+				for (e, _) in new_events {
+					events.push(e);
+				}
 			}
 
 			if let OutgoingKind::Normal(server_name) = outgoing_kind {
@@ -360,11 +363,11 @@ impl Service {
 
 		for user_id in device_list_changes {
 			// Empty prev id forces synapse to resync: https://github.com/matrix-org/synapse/blob/98aec1cc9da2bd6b8e34ffb282c85abf9b8b42ca/synapse/handlers/device.py#L767
-			// Because synapse resyncs, we can just insert dummy data
+			// Because synapse resyncs, we can just insert placeholder data
 			let edu = Edu::DeviceListUpdate(DeviceListUpdateContent {
 				user_id,
-				device_id: device_id!("dummy").to_owned(),
-				device_display_name: Some("Dummy".to_owned()),
+				device_id: device_id!("placeholder").to_owned(),
+				device_display_name: Some("Placeholder".to_owned()),
 				stream_id: uint!(1),
 				prev_id: Vec::new(),
 				deleted: None,
@@ -421,6 +424,29 @@ impl Service {
 		Ok(())
 	}
 
+	#[tracing::instrument(skip(self, room_id))]
+	pub fn flush_room(&self, room_id: &RoomId) -> Result<()> {
+		let servers: HashSet<OwnedServerName> =
+			services().rooms.state_cache.room_servers(room_id).filter_map(std::result::Result::ok).collect();
+
+		self.flush_servers(servers.into_iter())
+	}
+
+	#[tracing::instrument(skip(self, servers))]
+	pub fn flush_servers<I: Iterator<Item = OwnedServerName>>(&self, servers: I) -> Result<()> {
+		let requests = servers
+			.into_iter()
+			.filter(|server| server != services().globals.server_name())
+			.map(OutgoingKind::Normal)
+			.collect::<Vec<_>>();
+
+		for outgoing_kind in requests.into_iter() {
+			self.sender.send((outgoing_kind, SendingEventType::Flush, Vec::<u8>::new())).unwrap();
+		}
+
+		Ok(())
+	}
+
 	/// Cleanup event data
 	/// Used for instance after we remove an appservice registration
 	#[tracing::instrument(skip(self))]
@@ -461,6 +487,9 @@ impl Service {
 						SendingEventType::Edu(_) => {
 							// Appservices don't need EDUs (?)
 						},
+						SendingEventType::Flush => {
+							// flush only; no new content
+						},
 					}
 				}
 
@@ -480,6 +509,7 @@ impl Service {
 								.iter()
 								.map(|e| match e {
 									SendingEventType::Edu(b) | SendingEventType::Pdu(b) => &**b,
+									SendingEventType::Flush => &[],
 								})
 								.collect::<Vec<_>>(),
 						)))
@@ -521,6 +551,9 @@ impl Service {
 						SendingEventType::Edu(_) => {
 							// Push gateways don't need EDUs (?)
 						},
+						SendingEventType::Flush => {
+							// flush only; no new content
+						},
 					}
 				}
 
@@ -601,6 +634,9 @@ impl Service {
 								edu_jsons.push(raw);
 							}
 						},
+						SendingEventType::Flush => {
+							// flush only; no new content
+						},
 					}
 				}
 
@@ -618,6 +654,7 @@ impl Service {
 								.iter()
 								.map(|e| match e {
 									SendingEventType::Edu(b) | SendingEventType::Pdu(b) => &**b,
+									SendingEventType::Flush => &[],
 								})
 								.collect::<Vec<_>>(),
 						)))
@@ -647,6 +684,10 @@ impl Service {
 	where
 		T: OutgoingRequest + Debug,
 	{
+		if !services().globals.allow_federation() {
+			return Err(Error::bad_config("Federation is disabled."));
+		}
+
 		if destination.is_ip_literal() || IPAddress::is_valid(destination.host()) {
 			info!(
 				"Destination {} is an IP literal, checking against IP range denylist.",

src/utils/mod.rs

@@ -11,6 +11,7 @@ use argon2::{password_hash::SaltString, PasswordHasher};
 use rand::prelude::*;
 use ring::digest;
 use ruma::{canonical_json::try_from_json_map, CanonicalJsonError, CanonicalJsonObject, OwnedUserId};
+use tracing::debug;
 
 use crate::{services, Error, Result};
 
@@ -30,8 +31,11 @@ pub(crate) fn increment(old: Option<&[u8]>) -> Option<Vec<u8>> {
 	Some(number.to_be_bytes().to_vec())
 }
 
+/// Generates a new homeserver signing key. First 8 bytes are the version (a
+/// random alphanumeric string), the rest are generated by Ed25519KeyPair
 pub fn generate_keypair() -> Vec<u8> {
 	let mut value = random_string(8).as_bytes().to_vec();
+	debug!("Keypair version bytes: {value:?}");
 	value.push(0xFF);
 	value.extend_from_slice(
 		&ruma::signatures::Ed25519KeyPair::generate().expect("Ed25519KeyPair generation always works (?)"),
@@ -58,6 +62,7 @@ pub fn user_id_from_bytes(bytes: &[u8]) -> Result<OwnedUserId> {
 	.map_err(|_| Error::bad_database("Failed to parse user id from bytes"))
 }
 
+/// Generats a random *alphanumeric* string
 pub fn random_string(length: usize) -> String {
 	thread_rng().sample_iter(&rand::distributions::Alphanumeric).take(length).map(char::from).collect()
 }