This converts all secret storage to use a newer account data API which uses
cached data in stored when available, but also knows how to ask the homeserver
in case it's invoked during early client startup before the initial sync.
As a consequence, it means most secret storage APIs are now async.
Part of https://github.com/vector-im/riot-web/issues/11901
We need to check for getCrossSisgningKey but that was added
unconditionally elsewhere - only add it if we actually have a
getSecretStorageKey callback to use.
as MSC2366 adds an extra interactive step to the verification process,
we can't wait for the verifier after sending the request.
This is a breaking change in the js-sdk as it changes the return type
of an existing method.
Exporting it the way we were was causing problems for webpack way down
the line, so we export it differently here to get around that. We also
have to fix all the import references so we import the right thing.
The bulk of this is just export/import changes, though there's a couple pieces to highlight:
* We no longer use default exports. This is because it's discouraged by the JS community, though not in any official capacity.
* We now use `polyfillSuper` for some prototype inheritance because the tests, and sometimes webpack, break on "cannot call EncryptionAlgorithm without 'new'". It's very much a workaround, and definitely not needed when we use real classes.
There is some import shuffling to help keep the imports clean - this was done by my IDE.
This ensure we run the full backup validity check even when enabling (rather
than assuming we've signed things correctly) to ensure any problem are reported
right away.
This changes `addKey` for secret storage to consume info about a pre-generated
key, rather than creating the key in middle of the method. This eases UI work
that want to have the public and private keys earlier on in the flow.
This adjusts the metadata from `createRecoveryKeyFromPassphrase` to include KDF
info formatted in the way secret storage expects. Since
`prepareKeyBackupVersion` did something similar, we adjust it to use the new
function and reshape the objects.
