Changed the min OS version to iOS 13.0 (support for 'Identifiable')
Removed the alternate approaches to fetching the userKeyPair and userPublicKeyHexString (no consistently routed through the caching method)
Migrated the 'OWSIdentityManager' logic to use the new 'Identity' type
Added the 'Setting' table and got the pattern working fairly nicely (unfortunately there isn't a good way to avoid key collision without proper enums)
Updated the SessionSnodeKit to migration it's data from YDB to GRDB
Updated the SessionSnodeKit to use GRDB throughout it's logic
Setup a migration pattern
Setup the database configuration and security
Started defining the database schema
Started working on the migrations for SessionSnodeKit
Fixed a possible divide by zero error
Cleaned up some of the id blinding methods (ie. removing handling for impossible error states)
Added unit tests for the new Sodium methods (used for id blinding)
Added unit tests for some of the shared code
Added unit tests for the MessageSender+Encryption extension functions
Added unit tests for the MessageReceiver+Decryption extension functions
Updated the unit test key constants to be consistent with the SOGS auth-example keys for consistency
Fixed an issue where messages where signed incorrectly when blinding wasn't enabled on a SOGS
Fixed an issue where a single invalid message would result in all messages in that request being dropped
Updated the final legacy endpoint (ban and delete all messages)
Moved the OpenGroupManager poller values into the 'Cache' (so they are thread safe)
Started adding unit tests for the OpenGroupManager
Removed some redundant parameters from the 'Request' type
Removed a couple remaining TODOs
Added 'standardUserDefaults' to the 'Dependencies' type
Tweaked the OpenGroupAPI to only update the 'lastOpen' timestamp if it successfully polls
Refactored a couple of methods in the ConversationViewItem into swift so we can clean up the OpenGroupAPI more
Updated the OpenGroupAPI so it no longer has static variables for state (shifted to the OpenGroupManager and made them instance variables)
Fixed an encoding issue with the Capabilities.Capability
Stopped configuration messages from automatically creating threads for sync'ed contacts (now they will only be created if there are messages)
Updated the ConfigurationMessage to stop truncating the list of contacts but filter the full set (also update the logic to include previously approved contacts)
Refactored the existing unit tests to use Quick
Started adding unit tests for a number of the OpenGroupAPI network models
Added unit tests for the SessionId type
Added a few types to make the code more readable
Added the inbox request to the polling
Added a couple of properties to the TSContactThread to indicate the originating open group to support SOGS DMs
Added code to store the latest message id for an open group inbox
Added a bunch of documentation from the API docs into the OpenGroupAPI (and associated models)
Updated the OpenGroupAPI to match the latest docs
Fixed the incorrect structure of the SendDirectMessageRequest
Fixed an incorrect inbox endpoint path
Tweaked the batch response handling so it wouldn't fail to parse all responses if a single one failed
Renamed IdPrefix to SessionId.Prefix and cleaned up the type to be more readable & self-documenting
Added a couple more dependencies for unit testing injection
Updated the MessageSender to set the sender of the message to the appropriate blinded/unblinded key
Updated the OpenGroup Message to handle verification of both blinded and unblinded messages
Updated the MessageSender to use dependency injection for it's sendToOpenGroupDestination method
Updated the JSONDecoder to support getting dependencies (for signature verification)
Fixed tests broken by updating the signing logic
Got the updated blinding logic working (at least when authenticating a request - still need to deal with message signing and verification)
Storing the server capabilities in the database now so we can correctly blind requests based on them
Renamed the remaining 'v2' functions and classes to just be 'OpenGroup' since there isn't a 'V2' anymore
Cleaned up a few TODOs and functions
Added some new properties to the OpenGroupV2
Moved a number of methods and variables from OpenGroupAPI to OpenGroupManager (anything doing actual logic)
Moved the message signing into the OpenGroupAPI (since that's the only place it happens)
Renamed remaining old model classes to start with 'Legacy' to make clean up easier
Updated the OpenGroupAPI poll method to use the same logic as it previously did to determine if it should retrieve recent messages or messages since the last one
Split the OpenGroupAPIV2 into separate files
Started working on the new auth and blinded-id approaches (new auth working with un-blinded id suggesting blinded-id code is incorrect)
Updated the SOGS request/response types to use Codable
Updated the SOGS Request type to use enums instead of strings for keys (to reduce likelihood of typos breaking things)
Updated SessionMessagingKit to use Codable and JSONEncoder/JSONDecoder instead of the legacy JSONSerialization
Cleaned up some naming conventions in the SessionMessagingKit (calling a URLRequest body 'parameters' is very confusing...)
Removed the custom TSRequest class (just using standard URLRequest everywhere instead)
Added a number of extension functions to enable some more functional-coding styles
Added extensions to Sodium methods to allow scalar multiplication and the ability to hash providing a salt and a personalisation value (both needed for new SOGS auth)
Fixed an issue where the legacy auth for SOGS could crash due to threading issues (multiple threads accessing the same variable)
Fixed an issue where if you were in two rooms in a single SOGS and deleted one of them, the other room would stop getting updates as the server public key was getting removed
Added the MessageRequestsViewController
Added a 'Message Requests' button to the settings screen
Added accept/reject buttons for message requests to the ConversationVC
Added the ability to hide the message request item on the HomeVC (re-appears if you get a new message request)
Added code to handle an edge-case where the message request approval state wouldn't be returned to the sender due to the recipient running an old version of the app
Prevented contacts which aren't associated with an approved thread from appearing when creating a closed group
Disabled notifications for threads which aren't approved
Updated the app notification count to exclude unapproved messages
Updated the app to ignore closed group creation messages if the group has no admins which are approved contacts
Fixed up the keyboard avoidance behaviour in the ConversationVC
Fixed a couple of minor interaction issues which affected some devices
Fixed an issue where the database migrations would run on the 2nd launch when creating a new account (causing odd behaviours)
Updated the share extension to load URL previews.
Updated the ThreadPickerVC to send plain text & URLs in the same way they are sent for normal messages.
