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feat(Wallet): implement token list from Uniswap (#3273) 

Fixes #8807
This commit is contained in:
IvanBelyakoff 2023-03-14 20:33:05 +03:00 committed by GitHub
parent 44a0f5b74d
commit 804b5b43b4
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 1920 additions and 1694 deletions
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101
services/wallet/token/token.go
View File

@ -5,6 +5,7 @@ import (
"database/sql"
"errors"
"math/big"
"strconv"
"sync"
"time"
@ -49,6 +50,9 @@ type Manager struct {
db *sql.DB
RPCClient *rpc.Client
networkManager *network.Manager
stores []store
tokenList []*Token
tokenMap storeMap
}
func NewTokenManager(
@ -56,49 +60,52 @@ func NewTokenManager(
RPCClient *rpc.Client,
networkManager *network.Manager,
) *Manager {
tokenManager := &Manager{db, RPCClient, networkManager}
overrideTokensInPlace(networkManager.GetConfiguredNetworks(), tokenStore)
defaultStore := newDefaultStore()
// Order of stores is important when merging token lists. The former prevale
tokenManager := &Manager{db, RPCClient, networkManager, []store{newUniswapStore(), defaultStore}, nil, nil}
return tokenManager
}
// overrideTokensInPlace overrides tokens in the store with the ones from the networks
// BEWARE: overridden tokens will have their original address removed and replaced by the one in networks
func overrideTokensInPlace(networks []params.Network, store map[uint64]map[common.Address]*Token) {
func overrideTokensInPlace(networks []params.Network, tokens []*Token) {
for _, network := range networks {
if len(network.TokenOverrides) == 0 {
continue
}
// Map from original address to overridden address
overriddenMap := make(map[common.Address]common.Address, len(network.TokenOverrides))
tokensMap, ok := store[network.ChainID]
if !ok {
continue
}
for _, overrideToken := range network.TokenOverrides {
for _, token := range tokensMap {
for _, token := range tokens {
if token.Symbol == overrideToken.Symbol {
overriddenMap[token.Address] = overrideToken.Address
token.Address = overrideToken.Address
}
}
}
for originalAddress, newAddress := range overriddenMap {
newToken := *tokensMap[originalAddress]
tokensMap[newAddress] = &newToken
newToken.Address = newAddress
}
}
delete(tokensMap, originalAddress)
func mergeTokenLists(sliceLists [][]*Token) []*Token {
allKeys := make(map[string]bool)
res := []*Token{}
for _, list := range sliceLists {
for _, token := range list {
key := strconv.FormatUint(token.ChainID, 10) + token.Address.String()
if _, value := allKeys[key]; !value {
allKeys[key] = true
res = append(res, token)
}
}
}
return res
}
func (tm *Manager) inStore(address common.Address, chainID uint64) bool {
if address == nativeChainAddress {
return true
}
tokensMap, ok := tokenStore[chainID]
tokensMap, ok := tm.tokenMap[chainID]
if !ok {
return false
}
@ -107,6 +114,31 @@ func (tm *Manager) inStore(address common.Address, chainID uint64) bool {
return ok
}
func (tm *Manager) areTokensFetched() bool {
for _, store := range tm.stores {
if !store.areTokensFetched() {
return false
}
}
return true
}
func (tm *Manager) fetchTokens() []*Token {
result := make([]*Token, 0)
for _, store := range tm.stores {
tokens, err := store.GetTokens()
if err != nil {
log.Error("can't fetch tokens from store: %s", err)
continue
}
result = mergeTokenLists([][]*Token{result, tokens})
}
return result
}
func (tm *Manager) FindToken(network *params.Network, tokenSymbol string) *Token {
if tokenSymbol == network.NativeCurrencySymbol {
return tm.ToToken(network)
@ -130,12 +162,12 @@ func (tm *Manager) FindToken(network *params.Network, tokenSymbol string) *Token
}
func (tm *Manager) FindSNT(chainID uint64) *Token {
tokensMap, ok := tokenStore[chainID]
if !ok {
tokens, err := tm.GetTokens(chainID)
if err != nil {
return nil
}
for _, token := range tokensMap {
for _, token := range tokens {
if token.Symbol == "SNT" || token.Symbol == "STT" {
return token
}
@ -163,25 +195,27 @@ func (tm *Manager) GetAllTokensAndNativeCurrencies() ([]*Token, error) {
}
func (tm *Manager) GetAllTokens() ([]*Token, error) {
result := make([]*Token, 0)
for _, tokens := range tokenStore {
for _, token := range tokens {
result = append(result, token)
}
if tm.areTokensFetched() {
return tm.tokenList, nil
}
tm.tokenList = tm.fetchTokens()
tokens, err := tm.GetCustoms()
if err != nil {
return nil, err
log.Error("can't fetch custom tokens: %s", err)
}
result = append(result, tokens...)
tm.tokenList = append(tm.tokenList, tokens...)
tm.tokenMap = toTokenMap(tm.tokenList)
return result, nil
overrideTokensInPlace(tm.networkManager.GetConfiguredNetworks(), tm.tokenList)
return tm.tokenList, nil
}
func (tm *Manager) GetTokens(chainID uint64) ([]*Token, error) {
tokensMap, ok := tokenStore[chainID]
tokensMap, ok := tm.tokenMap[chainID]
if !ok {
return nil, errors.New("no tokens for this network")
}
@ -348,7 +382,12 @@ func (tm *Manager) GetVisible(chainIDs []uint64) (map[uint64][]*Token, error) {
}
found := false
for _, token := range tokenStore[chainID] {
tokens, err := tm.GetTokens(chainID)
if err != nil {
continue
}
for _, token := range tokens {
if token.Address == address {
rst[chainID] = append(rst[chainID], token)
found = true

123
services/wallet/token/token_test.go
View File

@ -1,6 +1,7 @@
package token
import (
"reflect"
"testing"
"github.com/stretchr/testify/require"
@ -14,7 +15,7 @@ import (
func setupTestTokenDB(t *testing.T) (*Manager, func()) {
db, err := appdatabase.InitializeDB(":memory:", "wallet-token-tests", 1)
require.NoError(t, err)
return &Manager{db, nil, nil}, func() {
return &Manager{db, nil, nil, nil, nil, nil}, func() {
require.NoError(t, db.Close())
}
}
@ -74,35 +75,103 @@ func TestTokenOverride(t *testing.T) {
},
},
}
testTokenStore := map[uint64]map[common.Address]*Token{
1: {
common.Address{1}: {
Address: common.Address{1},
Symbol: "SNT",
},
common.Address{2}: {
Address: common.Address{2},
Symbol: "TNT",
},
tokenList := []*Token{
&Token{
Address: common.Address{1},
Symbol: "SNT",
ChainID: 1,
},
2: {
common.Address{3}: {
Address: common.Address{3},
Symbol: "STT",
},
common.Address{4}: {
Address: common.Address{4},
Symbol: "TTT",
},
&Token{
Address: common.Address{2},
Symbol: "TNT",
ChainID: 1,
},
&Token{
Address: common.Address{3},
Symbol: "STT",
ChainID: 2,
},
&Token{
Address: common.Address{4},
Symbol: "TTT",
ChainID: 2,
},
}
overrideTokensInPlace(networks, testTokenStore)
_, found := testTokenStore[1][common.Address{1}]
testStore := &DefaultStore{
tokenList,
false,
}
overrideTokensInPlace(networks, testStore.tokenList)
tokens, err := testStore.GetTokens()
require.NoError(t, err)
tokenMap := toTokenMap(tokens)
_, found := tokenMap[1][common.Address{1}]
require.False(t, found)
require.Equal(t, common.Address{11}, testTokenStore[1][common.Address{11}].Address)
require.Equal(t, common.Address{2}, testTokenStore[1][common.Address{2}].Address)
_, found = testTokenStore[2][common.Address{3}]
require.Equal(t, common.Address{11}, tokenMap[1][common.Address{11}].Address)
require.Equal(t, common.Address{2}, tokenMap[1][common.Address{2}].Address)
_, found = tokenMap[2][common.Address{3}]
require.False(t, found)
require.Equal(t, common.Address{33}, testTokenStore[2][common.Address{33}].Address)
require.Equal(t, common.Address{4}, testTokenStore[2][common.Address{4}].Address)
require.Equal(t, common.Address{33}, tokenMap[2][common.Address{33}].Address)
require.Equal(t, common.Address{4}, tokenMap[2][common.Address{4}].Address)
}
func TestMergeTokenLists(t *testing.T) {
tokenList1 := []*Token{
&Token{
Address: common.Address{1},
Symbol: "SNT",
ChainID: 1,
},
}
tokenList1Copy := []*Token{
&Token{
Address: common.Address{1},
Symbol: "SNT",
ChainID: 1,
},
}
tokenList2 := []*Token{
&Token{
Address: common.Address{3},
Symbol: "STT",
ChainID: 2,
},
&Token{
Address: common.Address{4},
Symbol: "TTT",
ChainID: 2,
},
}
tokenList1Plus2 := []*Token{
&Token{
Address: common.Address{1},
Symbol: "SNT",
ChainID: 1,
},
&Token{
Address: common.Address{3},
Symbol: "STT",
ChainID: 2,
},
&Token{
Address: common.Address{4},
Symbol: "TTT",
ChainID: 2,
},
}
tokenListEmpty := []*Token{}
mergedList := mergeTokenLists([][]*Token{tokenListEmpty, tokenListEmpty})
require.Equal(t, 0, len(mergedList))
mergedList = mergeTokenLists([][]*Token{tokenListEmpty, tokenList1})
require.True(t, reflect.DeepEqual(mergedList, tokenList1))
mergedList = mergeTokenLists([][]*Token{tokenList1, tokenList1Copy})
require.True(t, reflect.DeepEqual(mergedList, tokenList1))
mergedList = mergeTokenLists([][]*Token{tokenList1, tokenList2})
require.True(t, reflect.DeepEqual(mergedList, tokenList1Plus2))
}

3336
services/wallet/token/tokenstore.go
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File diff suppressed because it is too large Load Diff

54
services/wallet/token/uniswap_tokenstore.go Normal file
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@ -0,0 +1,54 @@
package token
import (
"io/ioutil"
"net/http"
"time"
)
type uniswapStore struct {
client *http.Client
tokensFetched bool
}
const uniswapTokensURL = "https://gateway.ipfs.io/ipns/tokens.uniswap.org" // nolint:gosec
const tokenListSchemaURL = "https://uniswap.org/tokenlist.schema.json" // nolint:gosec
func newUniswapStore() *uniswapStore {
return &uniswapStore{client: &http.Client{Timeout: time.Minute}, tokensFetched: false}
}
func (ts *uniswapStore) doQuery(url string) (*http.Response, error) {
return ts.client.Get(url)
}
func (ts *uniswapStore) areTokensFetched() bool {
return ts.tokensFetched
}
func (ts *uniswapStore) GetTokens() ([]*Token, error) {
resp, err := ts.doQuery(uniswapTokensURL)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
// In an unlikely case when token list is fetched fine,
// but fails to validate against the schema, we don't want
// to refetch the tokens on every GetTokens call as it will
// still fail but will be wasting CPU cycles until restart,
// so lets keep tokensFetched before validate() call
ts.tokensFetched = true
_, err = validateDocument(string(body), tokenListSchemaURL)
if err != nil {
return nil, err
}
return bytesToTokens(body)
}