Do not show "Invalid room version" errors when server is not in room

Cargo.lock

@@ -363,7 +363,7 @@ checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
 
 [[package]]
 name = "conduit"
-version = "0.6.0"
+version = "0.7.0-alpha"
 dependencies = [
  "async-trait",
  "axum",

Cargo.toml

@@ -6,7 +6,7 @@ authors = ["timokoesters <timo@koesters.xyz>"]
 homepage = "https://conduit.rs"
 repository = "https://gitlab.com/famedly/conduit"
 readme = "README.md"
-version = "0.6.0"
+version = "0.7.0-alpha"
 edition = "2021"
 
 # When changing this, make sure to update the `flake.lock` file by running

src/api/server_server.rs

@@ -55,7 +55,7 @@ use std::{
     time::{Duration, Instant, SystemTime},
 };
 
-use tracing::{debug, error, warn};
+use tracing::{debug, error, trace, warn};
 
 /// Wraps either an literal IP address plus port, or a hostname plus complement
 /// (colon-plus-port if it was specified).
@@ -707,6 +707,23 @@ pub async fn send_transaction_message_route(
     // let mut auth_cache = EventMap::new();
 
     for pdu in &body.pdus {
+        let value: CanonicalJsonObject = serde_json::from_str(pdu.get()).map_err(|e| {
+            warn!("Error parsing incoming event {:?}: {:?}", pdu, e);
+            Error::BadServerResponse("Invalid PDU in server response")
+        })?;
+        let room_id: OwnedRoomId = value
+            .get("room_id")
+            .and_then(|id| RoomId::parse(id.as_str()?).ok())
+            .ok_or(Error::BadRequest(
+                ErrorKind::InvalidParam,
+                "Invalid room id in pdu",
+            ))?;
+
+        if services().rooms.state.get_room_version(&room_id).is_err() {
+            debug!("Server is not in room {room_id}");
+            continue;
+        }
+
         let r = parse_incoming_pdu(&pdu);
         let (event_id, value, room_id) = match r {
             Ok(t) => t,

src/service/rooms/state/mod.rs

@@ -6,6 +6,7 @@ use std::{
 
 pub use data::Data;
 use ruma::{
+    api::client::error::ErrorKind,
     events::{
         room::{create::RoomCreateEventContent, member::MembershipState},
         AnyStrippedStateEvent, StateEventType, TimelineEventType,
@@ -331,7 +332,7 @@ impl Service {
             "",
         )?;
 
-        let create_event_content: Option<RoomCreateEventContent> = create_event
+        let create_event_content: RoomCreateEventContent = create_event
             .as_ref()
             .map(|create_event| {
                 serde_json::from_str(create_event.content.get()).map_err(|e| {
@@ -339,14 +340,10 @@ impl Service {
                     Error::bad_database("Invalid create event in db.")
                 })
             })
-            .transpose()?;
-        let room_version = create_event_content
-            .map(|create_event| create_event.room_version)
-            .ok_or_else(|| {
-                warn!("Invalid room version for room {room_id}");
-                Error::BadDatabase("Invalid room version")
-            })?;
-        Ok(room_version)
+            .transpose()?
+            .ok_or_else(|| Error::BadRequest(ErrorKind::InvalidParam, "No create event found"))?;
+
+        Ok(create_event_content.room_version)
     }
 
     pub fn get_room_shortstatehash(&self, room_id: &RoomId) -> Result<Option<u64>> {