- old existing ranges are merged when wallet service is started
- a new range is merged with an existing one if possible
This will decrease the number of entries in blocks_range table as
currently it can grow indefinitely (@flexsurfer reported 23307 entries).
This change is also needed for further optimisations of RPC usage.
- Wallet service is not started on foreground event on status-go side
anymore, it leaves a client side opportunity to decide whether new
blocks should be watched.
- `watchNewBlocks` parameter is added to `StartWallet`.
- Some requests are removed/moved to the place where they are necessary.
## What has changed?
I've introduced to the public binding functionality that will compress and decompress public keys of a variety of encoding and key types. This functionality supports all major byte encoding formats and the following EC public key types:
- `secp256k1` pks
- `bls12-381 g1` pks
- `bls12-381 g2` pks
## Why make the change?
We want shorter public (chat) keys and we want to be future proof and encoding agnostic. See the issue here https://github.com/status-im/status-go/issues/1937
---
* Added basic signature for compresspk and uncompresspk
* Added basic encoding information
* make vendor
* formatted imports for the linter
* Reformatted imports hoping linter likes it
* This linter is capricious
* Added check that the secp256k1 key is valid
* Added test for valid key
* Added multiformat/go-varint dep
* Added public key type handling
* Added key decompression with key type handling
* Added handling for '0x' type indentifying
* Added more robust testing
* Less lint for the linting gods
* make vendor for bls12_381
* Added bls12-381 compression tests
* Added decompress key expected results
* Refactor of typed and untyped keys in tests
* Lint god appeasment
* Refactor of sample public keys
* Implemented bls12-381 decompression
* gofmt
* Renamed decode/encode funcs to be more descriptive
* Added binary bindings for key de/compression
* Refactor of func parameters
gomobile is a bit tempermental using raw bytes as a parameter, so I've decided to use string only inputs and outputs
* gofmt
* Added function documentation
* Moved multiformat de/compression into api/multiformat ns
* Moved multiformat de/compression into api/multiformat ns
* Changed compress to serialize on API
This resolves a dependency conflict we have with MatterBridge
which was using a newer version of the same package.
This resulted in a JSON marshalling bug that would crash the bridge.
Signed-off-by: Jakub Sokołowski <jakub@status.im>
Storing absolute path for different configs breaks compatibility on iOS
as app's dir is changed after upgrade. The solution is to store relative
paths and to concatenate it with `backend.rootDataDir`. The only
exception is `LogFile` as it is stored outside `backend.rootDataDir` on
Android. `LogDir` config was added to allow adding of custom dir for log
file.
Configs concerned:
`DataDir`
`LogDir`
`LogFile`
`KeystoreDir`
`BackupDisabledDataDir`
*** How it worked before this PR on multiaccount creation:
- On multiacc creation we scanned chain for eth and erc20 transfers. For
each address of a new empty multiaccount this scan required
1. two `eth_getBalance` requests to find out that there is no any
balance change between zero and the last block, for eth transfers
2. and `chain-size/100000` (currently ~100) `eth_getLogs` requests,
for erc20 transfers
- For some reason we scanned an address of the chat account as well, and
also accounts were not deduplicated. So even for an empty multiacc we
scanned chain twice for each chat and main wallet addresses, in result
app had to execute about 400 requests.
- As mentioned above, `eth_getBalance` requests were used to check if
there were any eth transfers, and that caused empty history in case
if user already used all available eth (so that both zero and latest
blocks show 0 eth for an address). There might have been transactions
but we wouldn't fetch/show them.
- There was no upper limit for the number of rpc requests during the
scan, so it could require indefinite number of requests; the scanning
algorithm was written so that we persisted the whole history of
transactions or tried to scan form the beginning again in case of
failure, giving up only after 10 minutes of failures. In result
addresses with sufficient number of transactions would never be fully
scanned and during these 10 minutes app could use gigabytes of
internet data.
- Failures were caused by `eth_getBlockByNumber`/`eth_getBlockByHash`
requests. These requests return significantly bigger responses than
`eth_getBalance`/`eth_transactionsCount` and it is likely that
execution of thousands of them in parallel caused failures for
accounts with hundreds of transactions. Even for an account with 12k
we could successfully determine blocks with transaction in a few
minutes using `eth_getBalance` requests, but `eth_getBlock...`
couldn't be processed for this acc.
- There was no caching for for `eth_getBalance` requests, and this
caused in average 3-4 times more such requests than is needed.
*** How it works now on multiaccount creation:
- On multiacc creation we scan chain for last ~30 eth transactions and
then check erc20 in the range where these eth transactions were found.
For an empty address in multiacc this means:
1. two `eth_getBalance` transactions to determine that there was no
balance change between zero and the last block; two
`eth_transactionsCount` requests to determine there are no outgoing
transactions for this address; total 4 requests for eth transfers
2. 20 `eth_getLogs` for erc20 transfers. This number can be lowered,
but that's not a big deal
- Deduplication of addresses is added and also we don't scan chat
account, so a new multiacc requires ~25 (we also request latest block
number and probably execute a few other calls) request to determine
that multiacc is empty (comparing to ~400 before)
- In case if address contains transactions we:
1. determine the range which contains 20-25 outgoing eth/erc20
transactions. This usually requires up to 10 `eth_transactionCount`
requests
2. then we scan chain for eth transfers using `eth_getBalance` and
`eth_transactionCount` (for double checking zero balances)
3. we make sure that we do not scan db for more than 30 blocks with
transfers. That's important for accounts with mostly incoming
transactions, because the range found on the first step might
contain any number of incoming transfers, but only 20-25 outgoing
transactions
4. when we found ~30 blocks in a given range, we update initial
range `from` block using the oldest found block
5. and now we scan db for erc20transfers using `eth_getLogs`
`oldest-found-eth-block`-`latest-block`, we make not more than 20 calls
6. when all blocks which contain incoming/outgoing transfers for a
given address are found, we save these blocks to db and mark that
transfers from these blocks are still to be fetched
7. Then we select latest ~30 (the number can be adjusted) blocks from
these which were found and fetch transfers, this requires 3-4
requests per transfer.
8. we persist scanned range so that we know were to start next time
9. we dispatch an event which tells client that transactions are found
10. client fetches latest 20 transfers
- when user presses "fetch more" button we check if app's db contains next
20 transfers, if not we scan chain again and return transfers after
small fixes
Roman Volosovskyi
Andrea Maria Piana
Samuel Hawksby-Robinson
Gheorghe Pinzaru
Adam Babik
Jakub Sokołowski
Pedro Pombeiro
Pedro Pombeiro
Adam Babik