matrix-sdk 0.8.0

What's Changed

Bug Fixes

• Add more invalid characters for room aliases.

• Match the right status code in Client::is_room_alias_available.

• Fix a bug where room keys were considered to be downloaded before backups were
  enabled. This bug only affects the
  BackupDownloadStrategy::AfterDecryptionFailure, where no attempt would be
  made to download a room key, if a decryption failure with a given room key
  would have been encountered before the backups were enabled.

Documentation

• Improve documentation of Client::observe_events.

Features

• Add create_room_alias function.

• Client::cross_process_store_locks_holder_name is used everywhere:

• StoreConfig::new() now takes a
  cross_process_store_locks_holder_name argument.

• StoreConfig no longer implements Default.

• BaseClient::new() has been removed.

• BaseClient::clone_with_in_memory_state_store() now takes a
  cross_process_store_locks_holder_name argument.

• BaseClient no longer implements Default.

• EventCacheStoreLock::new() no longer takes a key argument.

• BuilderStoreConfig no longer has
  cross_process_store_locks_holder_name field for Sqlite and
  IndexedDb.

• EncryptionSyncService and Notification are using Client::cross_process_store_locks_holder_name.

• Allow passing a custom RequestConfig to an upload request.

• Retry uploads if they've failed with transient errors.

• Implement EventHandlerContext for tuples.

• Introduce a mechanism similar to Client::add_event_handler and
  Client::add_room_event_handler but with a reactive programming pattern. Add
  Client::observe_events and Client::observe_room_events.

// Get an observer.
let observer =
    client.observe_events::<SyncRoomMessageEvent, (Room, Vec<Action>)>();

// Subscribe to the observer.
let mut subscriber = observer.subscribe();

// Use the subscriber as a `Stream`.
let (message_event, (room, push_actions)) = subscriber.next().await.unwrap();

When calling observe_events, one has to specify the type of event (in the
example, SyncRoomMessageEvent) and a context (in the example, (Room, Vec<Action>), respectively for the room and the push actions).

• Implement unwedging for media uploads.

• Send state from state sync and not from timeline to widget (#4254)

• Allow aborting media uploads.

• Add RoomPreviewInfo::num_active_members.

• Use room directory search as another data source.

• Check if the user is allowed to do a room mention before trying to send a call
  notify event.
  (#4271)

• Add Client::cross_process_store_locks_holder_name().

• Add a PreviouslyVerified variant to VerificationLevel indicating that the
  identity is unverified and previously it was verified.

• New UserIdentity::pin method.

• New ClientBuilder::with_decryption_trust_requirement method.

• New ClientBuilder::with_room_key_recipient_strategy method

• New Room.set_account_data and Room.set_account_data_raw RoomAccountData
  setters, analogous to the GlobalAccountData

• New RequestConfig.max_concurrent_requests which allows to limit the maximum
  number of concurrent requests the internal HTTP client issues (all others have
  to wait until the number drops below that threshold again)

• Implement proper redact handling in the widget driver. This allows the Rust
  SDK widget driver to support widgets that rely on redacting.

Refactor

• [breaking] Rename DisplayName to RoomDisplayName.

• Improve is_room_alias_format_valid so it's more strict.

• Remove duplicated fields in media event contents.

• Use SendHandle for media uploads too.

• Move event_cache_store/ to event_cache/store/ in matrix-sdk-base.

• Move linked_chunk from matrix-sdk to matrix-sdk-common.

• Move Event and Gap into matrix_sdk_base::event_cache.

• Move formatted_caption_from to the SDK, rename it.

• Tidy up and start commenting the widget code.

• Get rid of ProcessingContext and inline it in its callers.

• Get rid of unused limits parameter when constructing a WidgetMachine.

• Use a specialized mutex for locking access to the state store and
  being_sent.

• Renamed VerificationLevel::PreviouslyVerified to
  VerificationLevel::VerificationViolation.

• [breaking] Replace the Notification type from Ruma in SyncResponse and
  Client::register_notification_handler by a custom one.

• [breaking] The ambiguity maps in SyncResponse are moved to JoinedRoom
  and LeftRoom.

• [breaking] Room::can_user_redact and Member::can_redact are split
  between *_redact_own and *_redact_other.

• [breaking] AmbiguityCache contains the room member's user ID.

• [breaking] Replace impl MediaEventContent with &impl MediaEventContent in
  Media::get_file/Media::remove_file/Media::get_thumbnail/Media::remove_thumbnail

• [breaking] A custom sliding sync proxy set with
  ClientBuilder::sliding_sync_proxy now takes precedence over a discovered
  proxy.

• [breaking] Client::get_profile was moved to Account and renamed to
  Account::fetch_user_profile_of. Account::get_profile was renamed to
  Account::fetch_user_profile.

• [breaking] The HttpError::UnableToCloneRequest error variant has been
  removed because it was never used or generated by the SDK.

• [breaking] The Error::InconsistentState error variant has been removed
  because it was never used or generated by the SDK.

• [breaking] The widget capabilities in the FFI now need two additional
  flags: update_delayed_event, send_delayed_event.

• [breaking] Room::event now takes an optional RequestConfig to allow
  for tweaking the network behavior.

• [breaking] The instant module was removed, use the ruma::time module
  instead.

• [breaking] Add ClientBuilder::sqlite_store_with_cache_path to build a
  client that stores caches in a different directory to state/crypto.

• [breaking] The body parameter in get_media_file has been replaced with
  a filename parameter now that Ruma has a filename() method.