diff --git a/crates/matrix-sdk/src/client/builder.rs b/crates/matrix-sdk/src/client/builder.rs index 52dccf5137c..778d076aa4f 100644 --- a/crates/matrix-sdk/src/client/builder.rs +++ b/crates/matrix-sdk/src/client/builder.rs @@ -26,7 +26,7 @@ use ruma::{ }; use thiserror::Error; use tokio::sync::{broadcast, Mutex, OnceCell}; -use tracing::{debug, field::debug, instrument, Span}; +use tracing::{debug, field::debug, info, instrument, Span}; use url::Url; use super::{Client, ClientInner}; @@ -450,6 +450,7 @@ impl ClientBuilder { let http_client = HttpClient::new(inner_http_client.clone(), self.request_config); + #[allow(unused_variables)] let (homeserver, well_known) = match homeserver_cfg { HomeserverConfig::Url(url) => (url, None), @@ -471,19 +472,31 @@ impl ClientBuilder { let mut sliding_sync_proxy = self.sliding_sync_proxy.as_ref().map(|url| Url::parse(url)).transpose()?; - #[allow(unused_variables)] - if let Some(well_known) = well_known { - #[cfg(feature = "experimental-sliding-sync")] - if sliding_sync_proxy.is_none() { - sliding_sync_proxy = - well_known.sliding_sync_proxy.and_then(|p| Url::parse(&p.url).ok()) + #[cfg(feature = "experimental-sliding-sync")] + if self.is_simplified_sliding_sync_enabled { + // When using Simplified MSC3575, don't use a sliding sync proxy, allow the + // requests to be sent directly to the homeserver. + info!("Simplified MSC3575 is enabled, ignoring any sliding sync proxy."); + sliding_sync_proxy = None; + } else { + // Otherwise, if a proxy wasn't set, use the one discovered from the well-known. + if let Some(well_known) = well_known { + if sliding_sync_proxy.is_none() { + sliding_sync_proxy = + well_known.sliding_sync_proxy.and_then(|p| Url::parse(&p.url).ok()) + } } } #[cfg(feature = "experimental-sliding-sync")] - if self.requires_sliding_sync && sliding_sync_proxy.is_none() { - // In the future we will need to check for native support on the homeserver too. - return Err(ClientBuildError::SlidingSyncNotAvailable); + if self.requires_sliding_sync { + if self.is_simplified_sliding_sync_enabled { + // TODO: The server doesn't yet expose the availability of SSS. + } else { + if sliding_sync_proxy.is_none() { + return Err(ClientBuildError::SlidingSyncNotAvailable); + } + } } let homeserver = Url::parse(&homeserver)?; @@ -879,7 +892,7 @@ pub(crate) mod tests { #[async_test] async fn test_discovery_invalid_server() { // Given a new client builder. - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); // When building a client with an invalid server name. builder = builder.server_name_or_homeserver_url("⚠️ This won't work 🚫"); @@ -892,7 +905,7 @@ pub(crate) mod tests { #[async_test] async fn test_discovery_no_server() { // Given a new client builder. - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); // When building a client with a valid server name that doesn't exist. builder = builder.server_name_or_homeserver_url("localhost:3456"); @@ -908,7 +921,7 @@ pub(crate) mod tests { // Given a random web server that isn't a Matrix homeserver or hosting the // well-known file for one. let server = MockServer::start().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); // When building a client with the server's URL. builder = builder.server_name_or_homeserver_url(server.uri()); @@ -922,7 +935,7 @@ pub(crate) mod tests { async fn test_discovery_direct_legacy() { // Given a homeserver without a well-known file. let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); // When building a client with the server's URL. builder = builder.server_name_or_homeserver_url(homeserver.uri()); @@ -938,7 +951,7 @@ pub(crate) mod tests { // Given a homeserver without a well-known file and with a custom sliding sync // proxy injected. let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); #[cfg(feature = "experimental-sliding-sync")] { builder = builder.sliding_sync_proxy("https://localhost:1234"); @@ -958,7 +971,7 @@ pub(crate) mod tests { // Given a base server with a well-known file that has errors. let server = MockServer::start().await; let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); let well_known = make_well_known_json(&homeserver.uri(), None); let bad_json = well_known.to_string().replace(',', ""); @@ -985,7 +998,7 @@ pub(crate) mod tests { // doesn't support sliding sync. let server = MockServer::start().await; let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); Mock::given(method("GET")) .and(path("/.well-known/matrix/client")) @@ -1011,7 +1024,7 @@ pub(crate) mod tests { // sliding sync proxy. let server = MockServer::start().await; let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); Mock::given(method("GET")) .and(path("/.well-known/matrix/client")) @@ -1038,7 +1051,7 @@ pub(crate) mod tests { // sliding sync proxy. let server = MockServer::start().await; let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); Mock::given(method("GET")) .and(path("/.well-known/matrix/client")) @@ -1061,6 +1074,33 @@ pub(crate) mod tests { assert_eq!(client.sliding_sync_proxy(), Some("https://localhost:9012".parse().unwrap())); } + #[async_test] + async fn test_discovery_well_known_with_simplified_sliding_sync() { + // Given a base server with a well-known file that points to a homeserver with a + // sliding sync proxy. + let server = MockServer::start().await; + let homeserver = make_mock_homeserver().await; + let mut builder = make_ffi_builder(); + + Mock::given(method("GET")) + .and(path("/.well-known/matrix/client")) + .respond_with(ResponseTemplate::new(200).set_body_json(make_well_known_json( + &homeserver.uri(), + Some("https://localhost:1234"), + ))) + .mount(&server) + .await; + + // When building a client for simplified sliding sync with the base server. + builder = builder.simplified_sliding_sync(true); + builder = builder.server_name_or_homeserver_url(server.uri()); + let _client = builder.build().await.unwrap(); + + // Then a client should not use the discovered sliding sync proxy. + #[cfg(feature = "experimental-sliding-sync")] + assert!(_client.sliding_sync_proxy().is_none()); + } + /* Requires sliding sync */ #[async_test] @@ -1070,7 +1110,7 @@ pub(crate) mod tests { // doesn't support sliding sync. let server = MockServer::start().await; let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); Mock::given(method("GET")) .and(path("/.well-known/matrix/client")) @@ -1096,7 +1136,7 @@ pub(crate) mod tests { // sliding sync proxy. let server = MockServer::start().await; let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); Mock::given(method("GET")) .and(path("/.well-known/matrix/client")) @@ -1121,7 +1161,7 @@ pub(crate) mod tests { // Given a homeserver without a well-known file and with a custom sliding sync // proxy injected. let homeserver = make_mock_homeserver().await; - let mut builder = ClientBuilder::new(); + let mut builder = make_ffi_builder(); builder = builder.sliding_sync_proxy("https://localhost:1234"); // When building a client that requires sliding sync with the server's URL. @@ -1174,4 +1214,11 @@ pub(crate) mod tests { object }) } + + /// The FFI's build has SSS disabled by default, but the SDK has it enabled + /// by default. The tests are aligned with the FFI for now (until we remove + /// regular sliding sync). + fn make_ffi_builder() -> ClientBuilder { + ClientBuilder::new().simplified_sliding_sync(false) + } }