* Session records are now opaque strings, so treat them that way:
- no more cross checking identity key and session records
- Move hasOpenSession to axolotl wrapper
- Remote registration ids must be fetched async'ly via protocol wrapper
* Implement async AxolotlStore using textsecure.storage
* Add some db stores and move prekeys and signed keys to indexeddb
* Add storage tests
* Rename identityKey storage key from libaxolotl25519KeyidentityKey to
simply identityKey, since it's no longer hardcoded in libaxolotl
* Rework registration and key-generation, keeping logic in libtextsecure
and rendering in options.js.
* Remove key_worker since workers are handled at the libaxolotl level
now
Encapsulate the websocket resources and socket setup process in a
friendly OO class. The MessageReceiver constructor expects an instance
of EventTarget on which to fire message events asynchronously. The
provider of the EventTarget can then add/remove listeners as desired.
Ground work for a smoother registration flow. Overall UX still needs
some polish but at least now we can have a progress gif or animation or
whatever. Also adds the phonenumber-confirmation step as a simple alert
box, which will be replaced with a nice dialogue in a later commit.
We'd like to live in a world where we can retry all the pending
conflicts in a conversation as a batch, which means we don't want to
wipe the identity key before processing each message. Thus, remove that
step from these handlers and encapsulate in a method on the conversation
model.
Ensure that both tryAgain functions return promises, allowing the
application to take appropriate action in the result of success or
failure. This lets us remove all dependency from libtextsecure on
app-level constructs like message objects/ids and the `extenion.trigger`
function.
Corresponding frontend changes to follow in another commit.
1. Return the value returned by the registered function, to expose the
underlying promise to the caller.
2. Stop accepting extra arguments to the replay function. The caller
should be able to do what they want with the returned promise instead.
3. Add a timestamp argument to the outgoing case, needed to re-try
sending a message.
