PreKeyRecord, PreKeyBundle, and SignedPreKeyBundle are still used
outside of serialized sessions, so it doesn't make sense to mark them
"Legacy" just yet. Additionally, the keyed archiver overrides have to
be set up before any instances are unarchived, which is trickier for
these remaining model types.
In migrating off AxolotlKit we no longer have the capability to set up
AxolotlKit sessions from scratch. To replicate that, load a keyed
archive created from AxolotlKit data.
We still need the AxolotlKit model classes to migrate old sessions,
but we don't need any of the actual protocol support. This also
means we can drop HKDFKit.
Additionally, we do still use some utilities from AxolotlKit:
- AxolotlExceptions.h: NSException names, should eventually be
replaced by NSErrors everywhere
- NSData+keyVersionByte.h: prepend/remove public key type byte,
should eventually be replaced by strong types (ECPublicKey)
- SPKProtocolContext.h: defines the SPKProtocol{Read,Write}Context
marker protocols, should be replaced by direct use of
SDSAny{Read,Write}Transaction
- Fixes up content alignment issues from parallel changes to table view
styling.
- Re-adds view controller presentation within a nav controller (stemming
from parallel changes to table view styling)
- Fixes a bug around overzealous collision detection
Also fixes an unrelated issue. Setting up cv banners performs layout, which
can cause the conversation view controller's trait collection to change.
This can lead to us reenterantly setting up banners and updating trait
collection.
The workaround is to just call -ensureBannerState asynchronously from
-traitCollectionDidChange to break the synchronous chain.
