-
Notifications
You must be signed in to change notification settings - Fork 245
/
commands.go
704 lines (614 loc) · 19.6 KB
/
commands.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
package transfer
import (
"context"
"math/big"
"strings"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/log"
"github.com/status-im/status-go/services/wallet/async"
"github.com/status-im/status-go/services/wallet/chain"
)
var (
// This will work only for binance testnet as mainnet doesn't support
// archival request.
binanceChainMaxInitialRange = big.NewInt(500000)
binanceChainErc20BatchSize = big.NewInt(5000)
erc20BatchSize = big.NewInt(100000)
binancChainID = uint64(56)
binanceTestChainID = uint64(97)
numberOfBlocksCheckedPerIteration = 40
)
type ethHistoricalCommand struct {
db *Database
eth Downloader
address common.Address
chainClient *chain.Client
balanceCache *balanceCache
feed *event.Feed
foundHeaders []*DBHeader
error error
noLimit bool
from *LastKnownBlock
to, resultingFrom *big.Int
}
func (c *ethHistoricalCommand) Command() async.Command {
return async.FiniteCommand{
Interval: 5 * time.Second,
Runable: c.Run,
}.Run
}
func (c *ethHistoricalCommand) Run(ctx context.Context) (err error) {
start := time.Now()
if c.from.Number != nil && c.from.Balance != nil {
c.balanceCache.addBalanceToCache(c.address, c.from.Number, c.from.Balance)
}
if c.from.Number != nil && c.from.Nonce != nil {
c.balanceCache.addNonceToCache(c.address, c.from.Number, c.from.Nonce)
}
from, headers, err := findBlocksWithEthTransfers(ctx, c.chainClient, c.balanceCache, c.eth, c.address, c.from.Number, c.to, c.noLimit)
if err != nil {
c.error = err
return nil
}
c.foundHeaders = headers
c.resultingFrom = from
log.Info("eth historical downloader finished successfully", "address", c.address, "from", from, "to", c.to, "total blocks", len(headers), "time", time.Since(start))
//err = c.db.ProcessBlocks(c.address, from, c.to, headers, ethTransfer)
if err != nil {
log.Error("failed to save found blocks with transfers", "error", err)
return err
}
log.Debug("eth transfers were persisted. command is closed")
return nil
}
type erc20HistoricalCommand struct {
db *Database
erc20 BatchDownloader
address common.Address
chainClient *chain.Client
feed *event.Feed
iterator *IterativeDownloader
to *big.Int
from *big.Int
foundHeaders []*DBHeader
}
func (c *erc20HistoricalCommand) Command() async.Command {
return async.FiniteCommand{
Interval: 5 * time.Second,
Runable: c.Run,
}.Run
}
func getErc20BatchSize(chainID uint64) *big.Int {
if isBinanceChain(chainID) {
return binanceChainErc20BatchSize
}
return erc20BatchSize
}
func (c *erc20HistoricalCommand) Run(ctx context.Context) (err error) {
start := time.Now()
if c.iterator == nil {
c.iterator, err = SetupIterativeDownloader(
c.db, c.chainClient, c.address,
c.erc20, getErc20BatchSize(c.chainClient.ChainID), c.to, c.from, !isBinanceChain(c.chainClient.ChainID))
if err != nil {
log.Error("failed to setup historical downloader for erc20")
return err
}
}
for !c.iterator.Finished() {
headers, _, _, err := c.iterator.Next(ctx)
if err != nil {
log.Error("failed to get next batch", "error", err)
return err
}
c.foundHeaders = append(c.foundHeaders, headers...)
/*err = c.db.ProcessBlocks(c.address, from, to, headers, erc20Transfer)
if err != nil {
c.iterator.Revert()
log.Error("failed to save downloaded erc20 blocks with transfers", "error", err)
return err
}*/
}
log.Info("wallet historical downloader for erc20 transfers finished", "in", time.Since(start))
return nil
}
// controlCommand implements following procedure (following parts are executed sequeantially):
// - verifies that the last header that was synced is still in the canonical chain
// - runs fast indexing for each account separately
// - starts listening to new blocks and watches for reorgs
type controlCommand struct {
accounts []common.Address
db *Database
block *Block
eth *ETHDownloader
erc20 *ERC20TransfersDownloader
chainClient *chain.Client
feed *event.Feed
errorsCount int
nonArchivalRPCNode bool
}
func (c *controlCommand) LoadTransfers(ctx context.Context, downloader *ETHDownloader, limit int) (map[common.Address][]Transfer, error) {
return loadTransfers(ctx, c.accounts, c.block, c.db, c.chainClient, limit, make(map[common.Address][]*big.Int))
}
func (c *controlCommand) Run(parent context.Context) error {
log.Info("start control command")
ctx, cancel := context.WithTimeout(parent, 3*time.Second)
head, err := c.chainClient.HeaderByNumber(ctx, nil)
cancel()
if err != nil {
if c.NewError(err) {
return nil
}
return err
}
c.feed.Send(Event{
Type: EventFetchingRecentHistory,
Accounts: c.accounts,
})
log.Info("current head is", "block number", head.Number)
lastKnownEthBlocks, accountsWithoutHistory, err := c.block.GetLastKnownBlockByAddresses(c.chainClient.ChainID, c.accounts)
if err != nil {
log.Error("failed to load last head from database", "error", err)
if c.NewError(err) {
return nil
}
return err
}
fromMap := map[common.Address]*big.Int{}
if !c.nonArchivalRPCNode {
fromMap, err = findFirstRanges(parent, accountsWithoutHistory, head.Number, c.chainClient)
if err != nil {
if c.NewError(err) {
return nil
}
return err
}
}
target := head.Number
fromByAddress := map[common.Address]*LastKnownBlock{}
toByAddress := map[common.Address]*big.Int{}
for _, address := range c.accounts {
from, ok := lastKnownEthBlocks[address]
if !ok {
from = &LastKnownBlock{Number: fromMap[address]}
}
if c.nonArchivalRPCNode {
from = &LastKnownBlock{Number: big.NewInt(0).Sub(target, big.NewInt(100))}
}
fromByAddress[address] = from
toByAddress[address] = target
}
bCache := newBalanceCache()
cmnd := &findAndCheckBlockRangeCommand{
accounts: c.accounts,
db: c.db,
chainClient: c.chainClient,
balanceCache: bCache,
feed: c.feed,
fromByAddress: fromByAddress,
toByAddress: toByAddress,
}
err = cmnd.Command()(parent)
if err != nil {
if c.NewError(err) {
return nil
}
return err
}
if cmnd.error != nil {
if c.NewError(cmnd.error) {
return nil
}
return cmnd.error
}
downloader := ÐDownloader{
chainClient: c.chainClient,
accounts: c.accounts,
signer: types.NewLondonSigner(c.chainClient.ToBigInt()),
db: c.db,
}
_, err = c.LoadTransfers(parent, downloader, 40)
if err != nil {
if c.NewError(err) {
return nil
}
return err
}
events := map[common.Address]Event{}
for _, address := range c.accounts {
event := Event{
Type: EventNewTransfers,
Accounts: []common.Address{address},
}
for _, header := range cmnd.foundHeaders[address] {
if event.BlockNumber == nil || header.Number.Cmp(event.BlockNumber) == 1 {
event.BlockNumber = header.Number
}
}
if event.BlockNumber != nil {
events[address] = event
}
}
for _, event := range events {
c.feed.Send(event)
}
c.feed.Send(Event{
Type: EventRecentHistoryReady,
Accounts: c.accounts,
BlockNumber: target,
})
log.Info("end control command")
return err
}
func nonArchivalNodeError(err error) bool {
return strings.Contains(err.Error(), "missing trie node") ||
strings.Contains(err.Error(), "project ID does not have access to archive state")
}
func (c *controlCommand) NewError(err error) bool {
c.errorsCount++
log.Error("controlCommand error", "error", err, "counter", c.errorsCount)
if nonArchivalNodeError(err) {
log.Info("Non archival node detected")
c.nonArchivalRPCNode = true
c.feed.Send(Event{
Type: EventNonArchivalNodeDetected,
})
}
if c.errorsCount >= 3 {
c.feed.Send(Event{
Type: EventFetchingHistoryError,
Message: err.Error(),
})
return true
}
return false
}
func (c *controlCommand) Command() async.Command {
return async.FiniteCommand{
Interval: 5 * time.Second,
Runable: c.Run,
}.Run
}
type transfersCommand struct {
db *Database
eth *ETHDownloader
block *big.Int
address common.Address
chainClient *chain.Client
fetchedTransfers []Transfer
}
func (c *transfersCommand) Command() async.Command {
return async.FiniteCommand{
Interval: 5 * time.Second,
Runable: c.Run,
}.Run
}
func (c *transfersCommand) Run(ctx context.Context) (err error) {
allTransfers, err := getTransfersByBlocks(ctx, c.db, c.eth, c.address, []*big.Int{c.block})
if err != nil {
log.Info("getTransfersByBlocks error", "error", err)
return err
}
err = c.db.SaveTranfers(c.chainClient.ChainID, c.address, allTransfers, []*big.Int{c.block})
if err != nil {
log.Error("SaveTranfers error", "error", err)
return err
}
c.fetchedTransfers = allTransfers
log.Debug("transfers loaded", "address", c.address, "len", len(allTransfers))
return nil
}
type loadTransfersCommand struct {
accounts []common.Address
db *Database
block *Block
chainClient *chain.Client
blocksByAddress map[common.Address][]*big.Int
foundTransfersByAddress map[common.Address][]Transfer
}
func (c *loadTransfersCommand) Command() async.Command {
return async.FiniteCommand{
Interval: 5 * time.Second,
Runable: c.Run,
}.Run
}
func (c *loadTransfersCommand) LoadTransfers(ctx context.Context, downloader *ETHDownloader, limit int, blocksByAddress map[common.Address][]*big.Int) (map[common.Address][]Transfer, error) {
return loadTransfers(ctx, c.accounts, c.block, c.db, c.chainClient, limit, blocksByAddress)
}
func (c *loadTransfersCommand) Run(parent context.Context) (err error) {
downloader := ÐDownloader{
chainClient: c.chainClient,
accounts: c.accounts,
signer: types.NewLondonSigner(c.chainClient.ToBigInt()),
db: c.db,
}
transfersByAddress, err := c.LoadTransfers(parent, downloader, 40, c.blocksByAddress)
if err != nil {
return err
}
c.foundTransfersByAddress = transfersByAddress
return
}
type findAndCheckBlockRangeCommand struct {
accounts []common.Address
db *Database
chainClient *chain.Client
balanceCache *balanceCache
feed *event.Feed
fromByAddress map[common.Address]*LastKnownBlock
toByAddress map[common.Address]*big.Int
foundHeaders map[common.Address][]*DBHeader
noLimit bool
error error
}
func (c *findAndCheckBlockRangeCommand) Command() async.Command {
return async.FiniteCommand{
Interval: 5 * time.Second,
Runable: c.Run,
}.Run
}
func (c *findAndCheckBlockRangeCommand) Run(parent context.Context) (err error) {
log.Debug("start findAndCHeckBlockRangeCommand")
newFromByAddress, ethHeadersByAddress, err := c.fastIndex(parent, c.balanceCache, c.fromByAddress, c.toByAddress)
if err != nil {
c.error = err
return nil
}
if c.noLimit {
newFromByAddress = map[common.Address]*big.Int{}
for _, address := range c.accounts {
newFromByAddress[address] = c.fromByAddress[address].Number
}
}
erc20HeadersByAddress, err := c.fastIndexErc20(parent, newFromByAddress, c.toByAddress)
if err != nil {
return err
}
foundHeaders := map[common.Address][]*DBHeader{}
maxBlockNumber := big.NewInt(0)
for _, address := range c.accounts {
ethHeaders := ethHeadersByAddress[address]
erc20Headers := erc20HeadersByAddress[address]
allHeaders := append(ethHeaders, erc20Headers...)
uniqHeadersByHash := map[common.Hash]*DBHeader{}
for _, header := range allHeaders {
uniqHeader, ok := uniqHeadersByHash[header.Hash]
if ok {
if len(header.Erc20Transfers) > 0 {
uniqHeader.Erc20Transfers = append(uniqHeader.Erc20Transfers, header.Erc20Transfers...)
}
uniqHeadersByHash[header.Hash] = uniqHeader
} else {
uniqHeadersByHash[header.Hash] = header
}
}
uniqHeaders := []*DBHeader{}
for _, header := range uniqHeadersByHash {
uniqHeaders = append(uniqHeaders, header)
}
foundHeaders[address] = uniqHeaders
for _, header := range allHeaders {
if header.Number.Cmp(maxBlockNumber) == 1 {
maxBlockNumber = header.Number
}
}
lastBlockNumber := c.toByAddress[address]
log.Debug("saving headers", "len", len(uniqHeaders), "lastBlockNumber", lastBlockNumber, "balance", c.balanceCache.ReadCachedBalance(address, lastBlockNumber), "nonce", c.balanceCache.ReadCachedNonce(address, lastBlockNumber))
to := &LastKnownBlock{
Number: lastBlockNumber,
Balance: c.balanceCache.ReadCachedBalance(address, lastBlockNumber),
Nonce: c.balanceCache.ReadCachedNonce(address, lastBlockNumber),
}
err = c.db.ProcessBlocks(c.chainClient.ChainID, address, newFromByAddress[address], to, uniqHeaders)
if err != nil {
return err
}
}
c.foundHeaders = foundHeaders
return
}
// run fast indexing for every accont up to canonical chain head minus safety depth.
// every account will run it from last synced header.
func (c *findAndCheckBlockRangeCommand) fastIndex(ctx context.Context, bCache *balanceCache, fromByAddress map[common.Address]*LastKnownBlock, toByAddress map[common.Address]*big.Int) (map[common.Address]*big.Int, map[common.Address][]*DBHeader, error) {
start := time.Now()
group := async.NewGroup(ctx)
commands := make([]*ethHistoricalCommand, len(c.accounts))
for i, address := range c.accounts {
eth := ðHistoricalCommand{
db: c.db,
chainClient: c.chainClient,
balanceCache: bCache,
address: address,
eth: ÐDownloader{
chainClient: c.chainClient,
accounts: []common.Address{address},
signer: types.NewLondonSigner(c.chainClient.ToBigInt()),
db: c.db,
},
feed: c.feed,
from: fromByAddress[address],
to: toByAddress[address],
noLimit: c.noLimit,
}
commands[i] = eth
group.Add(eth.Command())
}
select {
case <-ctx.Done():
return nil, nil, ctx.Err()
case <-group.WaitAsync():
resultingFromByAddress := map[common.Address]*big.Int{}
headers := map[common.Address][]*DBHeader{}
for _, command := range commands {
if command.error != nil {
return nil, nil, command.error
}
resultingFromByAddress[command.address] = command.resultingFrom
headers[command.address] = command.foundHeaders
}
log.Info("fast indexer finished", "in", time.Since(start))
return resultingFromByAddress, headers, nil
}
}
// run fast indexing for every accont up to canonical chain head minus safety depth.
// every account will run it from last synced header.
func (c *findAndCheckBlockRangeCommand) fastIndexErc20(ctx context.Context, fromByAddress map[common.Address]*big.Int, toByAddress map[common.Address]*big.Int) (map[common.Address][]*DBHeader, error) {
start := time.Now()
group := async.NewGroup(ctx)
commands := make([]*erc20HistoricalCommand, len(c.accounts))
for i, address := range c.accounts {
erc20 := &erc20HistoricalCommand{
db: c.db,
erc20: NewERC20TransfersDownloader(c.chainClient, []common.Address{address}, types.NewLondonSigner(c.chainClient.ToBigInt())),
chainClient: c.chainClient,
feed: c.feed,
address: address,
from: fromByAddress[address],
to: toByAddress[address],
foundHeaders: []*DBHeader{},
}
commands[i] = erc20
group.Add(erc20.Command())
}
select {
case <-ctx.Done():
return nil, ctx.Err()
case <-group.WaitAsync():
headres := map[common.Address][]*DBHeader{}
for _, command := range commands {
headres[command.address] = command.foundHeaders
}
log.Info("fast indexer Erc20 finished", "in", time.Since(start))
return headres, nil
}
}
func loadTransfers(ctx context.Context, accounts []common.Address, block *Block, db *Database, chainClient *chain.Client, limit int, blocksByAddress map[common.Address][]*big.Int) (map[common.Address][]Transfer, error) {
start := time.Now()
group := async.NewGroup(ctx)
commands := []*transfersCommand{}
for _, address := range accounts {
blocks, ok := blocksByAddress[address]
if !ok {
blocks, _ = block.GetBlocksByAddress(chainClient.ChainID, address, numberOfBlocksCheckedPerIteration)
}
for _, block := range blocks {
transfers := &transfersCommand{
db: db,
chainClient: chainClient,
address: address,
eth: ÐDownloader{
chainClient: chainClient,
accounts: []common.Address{address},
signer: types.NewLondonSigner(chainClient.ToBigInt()),
db: db,
},
block: block,
}
commands = append(commands, transfers)
group.Add(transfers.Command())
}
}
select {
case <-ctx.Done():
return nil, ctx.Err()
case <-group.WaitAsync():
transfersByAddress := map[common.Address][]Transfer{}
for _, command := range commands {
if len(command.fetchedTransfers) == 0 {
continue
}
transfers, ok := transfersByAddress[command.address]
if !ok {
transfers = []Transfer{}
}
for _, transfer := range command.fetchedTransfers {
transfersByAddress[command.address] = append(transfers, transfer)
}
}
log.Info("loadTransfers finished", "in", time.Since(start))
return transfersByAddress, nil
}
}
func isBinanceChain(chainID uint64) bool {
return chainID == binancChainID || chainID == binanceTestChainID
}
func getLowestFrom(chainID uint64, to *big.Int) *big.Int {
from := big.NewInt(0)
if isBinanceChain(chainID) && big.NewInt(0).Sub(to, from).Cmp(binanceChainMaxInitialRange) == 1 {
from = big.NewInt(0).Sub(to, binanceChainMaxInitialRange)
}
return from
}
func findFirstRange(c context.Context, account common.Address, initialTo *big.Int, client *chain.Client) (*big.Int, error) {
from := getLowestFrom(client.ChainID, initialTo)
to := initialTo
goal := uint64(20)
if from.Cmp(to) == 0 {
return to, nil
}
firstNonce, err := client.NonceAt(c, account, to)
log.Info("find range with 20 <= len(tx) <= 25", "account", account, "firstNonce", firstNonce, "from", from, "to", to)
if err != nil {
return nil, err
}
if firstNonce <= goal {
return from, nil
}
nonceDiff := firstNonce
iterations := 0
for iterations < 50 {
iterations = iterations + 1
if nonceDiff > goal {
// from = (from + to) / 2
from = from.Add(from, to)
from = from.Div(from, big.NewInt(2))
} else {
// from = from - (from + to) / 2
// to = from
diff := big.NewInt(0).Sub(to, from)
diff.Div(diff, big.NewInt(2))
to = big.NewInt(from.Int64())
from.Sub(from, diff)
}
fromNonce, err := client.NonceAt(c, account, from)
if err != nil {
return nil, err
}
nonceDiff = firstNonce - fromNonce
log.Info("next nonce", "from", from, "n", fromNonce, "diff", firstNonce-fromNonce)
if goal <= nonceDiff && nonceDiff <= (goal+5) {
log.Info("range found", "account", account, "from", from, "to", to)
return from, nil
}
}
log.Info("range found", "account", account, "from", from, "to", to)
return from, nil
}
func findFirstRanges(c context.Context, accounts []common.Address, initialTo *big.Int, client *chain.Client) (map[common.Address]*big.Int, error) {
res := map[common.Address]*big.Int{}
for _, address := range accounts {
from, err := findFirstRange(c, address, initialTo, client)
if err != nil {
return nil, err
}
res[address] = from
}
return res, nil
}
func getTransfersByBlocks(ctx context.Context, db *Database, downloader *ETHDownloader, address common.Address, blocks []*big.Int) ([]Transfer, error) {
allTransfers := []Transfer{}
for _, block := range blocks {
transfers, err := downloader.GetTransfersByNumber(ctx, block)
if err != nil {
return nil, err
}
log.Debug("loadTransfers", "block", block, "new transfers", len(transfers))
if len(transfers) > 0 {
allTransfers = append(allTransfers, transfers...)
}
}
return allTransfers, nil
}