crypto: Store sender_data in InboundGroupSessions

Author: andybalaam

bindings/matrix-sdk-crypto-ffi/src/lib.rs

@@ -31,7 +31,7 @@ pub use logger::{set_logger, Logger};
 pub use machine::{KeyRequestPair, OlmMachine, SignatureVerification};
 use matrix_sdk_common::deserialized_responses::ShieldState as RustShieldState;
 use matrix_sdk_crypto::{
-    olm::{IdentityKeys, InboundGroupSession, Session},
+    olm::{IdentityKeys, InboundGroupSession, SenderData, Session},
     store::{Changes, CryptoStore, PendingChanges, RoomSettings as RustRoomSettings},
     types::{EventEncryptionAlgorithm as RustEventEncryptionAlgorithm, SigningKey},
     EncryptionSettings as RustEncryptionSettings,
@@ -471,6 +471,7 @@ fn collect_sessions(
                     Ok((algorithm, key))
                 })
                 .collect::<anyhow::Result<_>>()?,
+            sender_data: SenderData::unknown(), // TODO: what should happen here?
             room_id: RoomId::parse(session.room_id)?,
             imported: session.imported,
             backed_up: session.backed_up,

crates/matrix-sdk-crypto/src/machine.rs

@@ -63,7 +63,7 @@ use crate::{
     identities::{user::UserIdentities, Device, IdentityManager, UserDevices},
     olm::{
         Account, CrossSigningStatus, EncryptionSettings, IdentityKeys, InboundGroupSession,
-        OlmDecryptionInfo, PrivateCrossSigningIdentity, SessionType, StaticAccountData,
+        OlmDecryptionInfo, PrivateCrossSigningIdentity, SenderData, SessionType, StaticAccountData,
     },
     requests::{IncomingResponse, OutgoingRequest, UploadSigningKeysRequest},
     session_manager::{GroupSessionManager, SessionManager},
@@ -806,11 +806,14 @@ impl OlmMachine {
         event: &DecryptedRoomKeyEvent,
         content: &MegolmV1AesSha2Content,
     ) -> OlmResult<Option<InboundGroupSession>> {
+        let sender_data = SenderData::unknown();
+
         let session = InboundGroupSession::new(
             sender_key,
             event.keys.ed25519,
             &content.room_id,
             &content.session_key,
+            sender_data,
             event.content.algorithm(),
             None,
         );
@@ -2263,7 +2266,8 @@ pub(crate) mod tests {
         error::{EventError, SetRoomSettingsError},
         machine::{EncryptionSyncChanges, OlmMachine},
         olm::{
-            BackedUpRoomKey, ExportedRoomKey, InboundGroupSession, OutboundGroupSession, VerifyJson,
+            BackedUpRoomKey, ExportedRoomKey, InboundGroupSession, OutboundGroupSession,
+            SenderData, VerifyJson,
         },
         store::{BackupDecryptionKey, Changes, CryptoStore, MemoryStore, RoomSettings},
         types::{
@@ -3556,6 +3560,7 @@ pub(crate) mod tests {
             Ed25519PublicKey::from_base64("loz5i40dP+azDtWvsD0L/xpnCjNkmrcvtXVXzCHX8Vw").unwrap(),
             fake_room_id,
             &olm,
+            SenderData::unknown(),
             EventEncryptionAlgorithm::MegolmV1AesSha2,
             None,
         )
@@ -3573,6 +3578,7 @@ pub(crate) mod tests {
             Ed25519PublicKey::from_base64("48f3WQAMGwYLBg5M5qUhqnEVA8yeibjZpPsShoWMFT8").unwrap(),
             fake_room_id,
             &olm,
+            SenderData::unknown(),
             EventEncryptionAlgorithm::MegolmV1AesSha2,
             None,
         )

crates/matrix-sdk-crypto/src/olm/account.rs

@@ -61,6 +61,7 @@ use crate::{
     dehydrated_devices::DehydrationError,
     error::{EventError, OlmResult, SessionCreationError},
     identities::ReadOnlyDevice,
+    olm::SenderData,
     requests::UploadSigningKeysRequest,
     store::{Changes, Store},
     types::{
@@ -220,6 +221,7 @@ impl StaticAccountData {
             signing_key,
             room_id,
             &outbound.session_key().await,
+            SenderData::unknown(), // TODO: provide sender data about ourself
             algorithm,
             Some(visibility),
         )?;