Commit Graph

6 Commits

Author SHA1 Message Date
Michal Fousek e01c83690f [#646] SDK sync process resumes correctly
- Previously we had one range for each sync which was used for each
  phase of sync process. Newly there is separate range for each phase of
  the sync process.
- I added `InternalSyncProgress` utility. This utility tracks progress
  of some phases. And it is able to compute right ranges which should be
  used for syncing.
- Some unused download code from `CompactBlockProcessor` is removed.

Fix tests

Address review comments

- Rebase to master
- Update how range for `processBatchFinished()` is computed.
- Refactor `InternalSyncProgress`
- Add tests for `InternalSyncProgress`

Address review comments

Change how latest downloaded block is tracked

- Cache DB is no longer used to track which block was downloaded as
  latest. `InternalSyncProgress` is used to do that.
- Thanks to that #660 is fixed. And cache DB can be completely removed
  after sync process.
- Added sleep(1) to some darkside tests when latest block height is set.
  Otherwise lightwalletd in darkside mode doesn't have time to setup and
  tests are flaky.

Fix TransactionEnhancementTests.testBasicEnhancement test
2022-12-12 14:27:30 +01:00
Francisco Gindre ed87a2781c [#461] Adopt a Type-Safe Keys and Addresses API
This PR creates data types for Addresses and Keys so that they are
not represented by Strings anymore. This avoids mistakenly use
the wrong keys because they are all alike for the type system.

New Protocols:
=============

StringEncoded -> Protocol that makes a type can be expressed in an
string-encoded fashion either for UI or Interchange purposes.

Undescribable -> A protocol that implements methods that override default
decriptions used by debuggers, loggers and event trackers to avoid types
conforming to it to be leaked to logs.

Deleted Protocols:
==================

UnifiedFullViewingKey --> turned into a struct.
UnifiedAddress --> turned into a struct

new Error Type:
================

````
enum KeyEncodingError: Error {
    case invalidEncoding
}
````

This error is thrown when an Address or Key type (addresses are public
keys in the end) can be decoded from their String representation,
typically upon initialization from a User input.

New Types:
=========

SaplingExtendedSpendingKey -> Type for Sapling Extended Full Viewing Keys
this type will be replaced with Unified Spending Keys soon.

SaplingExtendedFullViewingKey -> Extended Full Viewing Key for Sapling.
Maintains existing funcionality. Will be probably deprecated in favor of
UFVK.

TransparentAccountPrivKey -> Private key for transparent account. Used
only for shielding operations. Note: this will probably be deprecated soon.

UnifiedFullViewingKey -> Replaces the protocol that had the same name.

TransparentAddress -> Replaces a type alias with a struct

SaplingAddress --> Represents a Sapling receiver address. Comonly called zAddress. This address corresponds to the Zcash Sapling shielded pool.
Although this it is fully functional, we encourage developers to
choose `UnifiedAddress` before Sapling or Transparent ones.

UnifiedAddress -> Represents a UA. String-encodable and Equatable. Use of
UAs must be favored instead of individual receivers for different pools.
This type can't be decomposed into their Receiver types yet.

Recipient -> This represents all valid receiver types to be used as
inputs for outgoing transactions.

````
public enum Recipient: Equatable, StringEncoded {
    case transparent(TransparentAddress)
    case sapling(SaplingAddress)
    case unified(UnifiedAddress)
````

The wrapped concrete receiver is a valid receiver type.

Deleted Type Aliases:
=====================

The following aliases were deleted and turned into types
````
public typealias TransparentAddress = String
public typealias SaplingShieldedAddress = String

````

Changes to Derivation Tool
==========================

DerivationTool has been changed to accomodate this new types and
remove Strings whenever possible.

Changes to Synchronizer and CompactBlockProcessor
=================================================
Accordingly these to components have been modified to accept the
new types intead of strings when possible.

Changes to Demo App
===================
The demo App has been patch to compile and work with the new types.
Developers must consider that the use (and abuse) of forced_try and
forced unwrapping is a "license" that maintainers are using for the
sake of brevity. We consider that clients of this SDK do know how to
handle Errors and Optional and it is not the objective of the demo
code to show good practices on those matters.

Closes #461
2022-09-05 15:09:07 -03:00
Francisco Gindre e131ccbd07
[#392] Synchronizer error 8. when syncing. (#413)
Closes #392

This commit localizes SynchronizerError to better support Error messages
2022-07-12 17:28:16 -03:00
Francisco Gindre c7a27c0b86
[#401] DecodingError when refreshing pending transactions (#402)
Closes #401
This commit changes the way Codable in implemented for Zatoshi and PendingTransaction.

SQLite attempts to decode Custom Types as JSONStrings inside a TEXT column whereas Zatoshi only needs to be an INTEGER that can be treated as an Int64 value

`ConfirmedTransaction` entity is not affected because it is already deserialized
in a custom fashion whereas `PendingTransaction` was relying on `Codable` and
`CodingKey`.
2022-06-27 12:51:13 -03:00
Francisco Gindre b9ae012e09
[#381] Move Zatoshi and Amount Types to the SDK (#396)
Closes #381

This commit brings a Zatoshi type developed on the Secant project,
helper classes like Clamped and tests.

Zatoshi has been incorporated as a Codable type for SQLite Swift
to allow serialization into the pending database.

FIXES on Demo App

fix comments
2022-06-22 16:45:37 -03:00
Daniel Haight 86d1257ab5 Remove dependecy on rust sources 2022-02-28 17:03:20 +00:00