649 lines
16 KiB
Go
649 lines
16 KiB
Go
package token
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import (
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"context"
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"database/sql"
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"errors"
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"math/big"
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"sync"
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"time"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/log"
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"github.com/status-im/status-go/contracts"
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"github.com/status-im/status-go/contracts/ierc20"
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"github.com/status-im/status-go/params"
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"github.com/status-im/status-go/rpc"
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"github.com/status-im/status-go/rpc/network"
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"github.com/status-im/status-go/services/wallet/async"
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"github.com/status-im/status-go/services/wallet/chain"
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)
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var requestTimeout = 20 * time.Second
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var nativeChainAddress = common.HexToAddress("0x")
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type Token struct {
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Address common.Address `json:"address"`
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Name string `json:"name"`
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Symbol string `json:"symbol"`
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Color string `json:"color"`
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// Decimals defines how divisible the token is. For example, 0 would be
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// indivisible, whereas 18 would allow very small amounts of the token
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// to be traded.
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Decimals uint `json:"decimals"`
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ChainID uint64 `json:"chainId"`
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// PegSymbol indicates that the token is pegged to some fiat currency, using the
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// ISO 4217 alphabetic code. For example, an empty string means it is not
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// pegged, while "USD" means it's pegged to the United States Dollar.
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PegSymbol string `json:"pegSymbol"`
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}
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func (t *Token) IsNative() bool {
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return t.Address == nativeChainAddress
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}
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type Manager struct {
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db *sql.DB
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RPCClient *rpc.Client
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networkManager *network.Manager
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}
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func NewTokenManager(
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db *sql.DB,
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RPCClient *rpc.Client,
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networkManager *network.Manager,
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) *Manager {
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tokenManager := &Manager{db, RPCClient, networkManager}
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// Check the networks' custom tokens to see if we must update the tokenStore
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networks := networkManager.GetConfiguredNetworks()
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for _, network := range networks {
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if len(network.TokenOverrides) == 0 {
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continue
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}
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for _, overrideToken := range network.TokenOverrides {
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tokensMap, ok := tokenStore[network.ChainID]
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if !ok {
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continue
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}
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for _, token := range tokensMap {
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if token.Symbol == overrideToken.Symbol {
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token.Address = overrideToken.Address
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}
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}
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}
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}
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return tokenManager
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}
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func (tm *Manager) inStore(address common.Address, chainID uint64) bool {
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if address == nativeChainAddress {
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return true
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}
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tokensMap, ok := tokenStore[chainID]
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if !ok {
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return false
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}
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_, ok = tokensMap[address]
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return ok
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}
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func (tm *Manager) FindToken(network *params.Network, tokenSymbol string) *Token {
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if tokenSymbol == network.NativeCurrencySymbol {
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return tm.ToToken(network)
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}
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tokens, err := tm.GetTokens(network.ChainID)
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if err != nil {
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return nil
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}
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customTokens, err := tm.GetCustomsByChainID(network.ChainID)
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if err != nil {
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return nil
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}
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allTokens := append(tokens, customTokens...)
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for _, token := range allTokens {
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if token.Symbol == tokenSymbol {
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return token
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}
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}
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return nil
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}
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func (tm *Manager) FindSNT(chainID uint64) *Token {
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tokensMap, ok := tokenStore[chainID]
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if !ok {
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return nil
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}
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for _, token := range tokensMap {
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if token.Symbol == "SNT" || token.Symbol == "STT" {
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return token
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}
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}
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return nil
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}
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func (tm *Manager) GetAllTokens() ([]*Token, error) {
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result := make([]*Token, 0)
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for _, tokens := range tokenStore {
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for _, token := range tokens {
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result = append(result, token)
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}
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}
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tokens, err := tm.GetCustoms()
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if err != nil {
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return nil, err
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}
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result = append(result, tokens...)
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return result, nil
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}
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func (tm *Manager) GetTokens(chainID uint64) ([]*Token, error) {
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tokensMap, ok := tokenStore[chainID]
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if !ok {
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return nil, errors.New("no tokens for this network")
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}
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res := make([]*Token, 0, len(tokensMap))
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for _, token := range tokensMap {
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res = append(res, token)
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}
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return res, nil
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}
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func (tm *Manager) DiscoverToken(ctx context.Context, chainID uint64, address common.Address) (*Token, error) {
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backend, err := tm.RPCClient.EthClient(chainID)
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if err != nil {
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return nil, err
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}
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caller, err := ierc20.NewIERC20Caller(address, backend)
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if err != nil {
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return nil, err
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}
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name, err := caller.Name(&bind.CallOpts{
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Context: ctx,
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})
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if err != nil {
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return nil, err
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}
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symbol, err := caller.Symbol(&bind.CallOpts{
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Context: ctx,
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})
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if err != nil {
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return nil, err
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}
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decimal, err := caller.Decimals(&bind.CallOpts{
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Context: ctx,
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})
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if err != nil {
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return nil, err
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}
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return &Token{
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Address: address,
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Name: name,
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Symbol: symbol,
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Decimals: uint(decimal),
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}, nil
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}
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func (tm *Manager) GetCustoms() ([]*Token, error) {
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rows, err := tm.db.Query("SELECT address, name, symbol, decimals, color, network_id FROM tokens")
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var rst []*Token
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for rows.Next() {
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token := &Token{}
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err := rows.Scan(&token.Address, &token.Name, &token.Symbol, &token.Decimals, &token.Color, &token.ChainID)
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if err != nil {
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return nil, err
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}
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rst = append(rst, token)
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}
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return rst, nil
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}
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func (tm *Manager) GetCustomsByChainID(chainID uint64) ([]*Token, error) {
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rows, err := tm.db.Query("SELECT address, name, symbol, decimals, color, network_id FROM tokens where network_id=?", chainID)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var rst []*Token
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for rows.Next() {
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token := &Token{}
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err := rows.Scan(&token.Address, &token.Name, &token.Symbol, &token.Decimals, &token.Color, &token.ChainID)
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if err != nil {
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return nil, err
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}
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rst = append(rst, token)
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}
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return rst, nil
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}
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func (tm *Manager) IsTokenVisible(chainID uint64, address common.Address) (bool, error) {
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rows, err := tm.db.Query("SELECT chain_id, address FROM visible_tokens WHERE chain_id = ? AND address = ?", chainID, address)
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if err != nil {
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return false, err
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}
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defer rows.Close()
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return rows.Next(), nil
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}
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func (tm *Manager) Toggle(chainID uint64, address common.Address) error {
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isVisible, err := tm.IsTokenVisible(chainID, address)
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if err != nil {
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return err
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}
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if isVisible {
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_, err = tm.db.Exec(`DELETE FROM visible_tokens WHERE address = ? and chain_id = ?`, address, chainID)
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return err
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}
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insert, err := tm.db.Prepare("INSERT OR REPLACE INTO visible_tokens (chain_id, address) VALUES (?, ?)")
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if err != nil {
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return err
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}
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defer insert.Close()
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_, err = insert.Exec(chainID, address)
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return err
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}
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func (tm *Manager) ToToken(network *params.Network) *Token {
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return &Token{
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Address: common.HexToAddress("0x"),
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Name: network.NativeCurrencyName,
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Symbol: network.NativeCurrencySymbol,
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Decimals: uint(network.NativeCurrencyDecimals),
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ChainID: network.ChainID,
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}
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}
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func (tm *Manager) GetVisible(chainIDs []uint64) (map[uint64][]*Token, error) {
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customTokens, err := tm.GetCustoms()
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if err != nil {
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return nil, err
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}
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rst := make(map[uint64][]*Token)
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for _, chainID := range chainIDs {
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network := tm.networkManager.Find(chainID)
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if network == nil {
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continue
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}
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rst[chainID] = make([]*Token, 0)
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rst[chainID] = append(rst[chainID], tm.ToToken(network))
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}
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rows, err := tm.db.Query("SELECT chain_id, address FROM visible_tokens")
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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for rows.Next() {
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address := common.HexToAddress("0x")
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chainID := uint64(0)
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err := rows.Scan(&chainID, &address)
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if err != nil {
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return nil, err
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}
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found := false
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for _, token := range tokenStore[chainID] {
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if token.Address == address {
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rst[chainID] = append(rst[chainID], token)
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found = true
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break
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}
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}
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if found {
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continue
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}
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for _, token := range customTokens {
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if token.Address == address {
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rst[chainID] = append(rst[chainID], token)
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break
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}
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}
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}
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for _, chainID := range chainIDs {
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if len(rst[chainID]) == 1 {
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token := tm.FindSNT(chainID)
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if token != nil {
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rst[chainID] = append(rst[chainID], token)
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}
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}
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}
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return rst, nil
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}
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func (tm *Manager) UpsertCustom(token Token) error {
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insert, err := tm.db.Prepare("INSERT OR REPLACE INTO TOKENS (network_id, address, name, symbol, decimals, color) VALUES (?, ?, ?, ?, ?, ?)")
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if err != nil {
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return err
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}
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_, err = insert.Exec(token.ChainID, token.Address, token.Name, token.Symbol, token.Decimals, token.Color)
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return err
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}
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func (tm *Manager) DeleteCustom(chainID uint64, address common.Address) error {
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_, err := tm.db.Exec(`DELETE FROM TOKENS WHERE address = ? and network_id = ?`, address, chainID)
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return err
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}
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func (tm *Manager) GetTokenBalance(ctx context.Context, client *chain.Client, account common.Address, token common.Address) (*big.Int, error) {
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caller, err := ierc20.NewIERC20Caller(token, client)
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if err != nil {
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return nil, err
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}
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return caller.BalanceOf(&bind.CallOpts{
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Context: ctx,
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}, account)
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}
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func (tm *Manager) GetChainBalance(ctx context.Context, client *chain.Client, account common.Address) (*big.Int, error) {
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return client.BalanceAt(ctx, account, nil)
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}
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func (tm *Manager) GetBalance(ctx context.Context, client *chain.Client, account common.Address, token common.Address) (*big.Int, error) {
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if token == nativeChainAddress {
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return tm.GetChainBalance(ctx, client, account)
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}
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return tm.GetTokenBalance(ctx, client, account, token)
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}
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func (tm *Manager) GetBalances(parent context.Context, clients []*chain.Client, accounts, tokens []common.Address) (map[common.Address]map[common.Address]*hexutil.Big, error) {
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var (
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group = async.NewAtomicGroup(parent)
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mu sync.Mutex
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response = map[common.Address]map[common.Address]*hexutil.Big{}
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)
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updateBalance := func(account common.Address, token common.Address, balance *big.Int) {
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mu.Lock()
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if _, ok := response[account]; !ok {
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response[account] = map[common.Address]*hexutil.Big{}
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}
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if _, ok := response[account][token]; !ok {
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zeroHex := hexutil.Big(*big.NewInt(0))
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response[account][token] = &zeroHex
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}
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sum := big.NewInt(0).Add(response[account][token].ToInt(), balance)
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sumHex := hexutil.Big(*sum)
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response[account][token] = &sumHex
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mu.Unlock()
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}
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contractMaker := contracts.ContractMaker{RPCClient: tm.RPCClient}
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for clientIdx := range clients {
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client := clients[clientIdx]
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ethScanContract, err := contractMaker.NewEthScan(client.ChainID)
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if err == nil {
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fetchChainBalance := false
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var tokenChunks [][]common.Address
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chunkSize := 100
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for i := 0; i < len(tokens); i += chunkSize {
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end := i + chunkSize
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if end > len(tokens) {
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end = len(tokens)
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}
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tokenChunks = append(tokenChunks, tokens[i:end])
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}
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for _, token := range tokens {
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if token == nativeChainAddress {
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fetchChainBalance = true
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}
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}
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if fetchChainBalance {
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group.Add(func(parent context.Context) error {
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ctx, cancel := context.WithTimeout(parent, requestTimeout)
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defer cancel()
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res, err := ethScanContract.EtherBalances(&bind.CallOpts{
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Context: ctx,
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}, accounts)
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if err != nil {
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log.Error("can't fetch chain balance", err)
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return nil
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}
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for idx, account := range accounts {
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balance := new(big.Int)
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balance.SetBytes(res[idx].Data)
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updateBalance(account, common.HexToAddress("0x"), balance)
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}
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return nil
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})
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}
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for accountIdx := range accounts {
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account := accounts[accountIdx]
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for idx := range tokenChunks {
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chunk := tokenChunks[idx]
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group.Add(func(parent context.Context) error {
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ctx, cancel := context.WithTimeout(parent, requestTimeout)
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defer cancel()
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res, err := ethScanContract.TokensBalance(&bind.CallOpts{
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Context: ctx,
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}, account, chunk)
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if err != nil {
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log.Error("can't fetch erc20 token balance", "account", account, "error", err)
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return nil
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}
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for idx, token := range chunk {
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if !res[idx].Success {
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continue
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}
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balance := new(big.Int)
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balance.SetBytes(res[idx].Data)
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updateBalance(account, token, balance)
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}
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return nil
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})
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}
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}
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} else {
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for tokenIdx := range tokens {
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for accountIdx := range accounts {
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// Below, we set account, token and client from idx on purpose to avoid override
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account := accounts[accountIdx]
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token := tokens[tokenIdx]
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client := clients[clientIdx]
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if !tm.inStore(token, client.ChainID) {
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continue
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}
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group.Add(func(parent context.Context) error {
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ctx, cancel := context.WithTimeout(parent, requestTimeout)
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defer cancel()
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balance, err := tm.GetBalance(ctx, client, account, token)
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if err != nil {
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log.Error("can't fetch erc20 token balance", "account", account, "token", token, "error", err)
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return nil
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}
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updateBalance(account, token, balance)
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return nil
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})
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}
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}
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}
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}
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select {
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case <-group.WaitAsync():
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case <-parent.Done():
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return nil, parent.Err()
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}
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return response, group.Error()
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}
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func (tm *Manager) GetBalancesByChain(parent context.Context, clients []*chain.Client, accounts, tokens []common.Address) (map[uint64]map[common.Address]map[common.Address]*hexutil.Big, error) {
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var (
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group = async.NewAtomicGroup(parent)
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mu sync.Mutex
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response = map[uint64]map[common.Address]map[common.Address]*hexutil.Big{}
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)
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updateBalance := func(chainID uint64, account common.Address, token common.Address, balance *big.Int) {
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mu.Lock()
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if _, ok := response[chainID]; !ok {
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response[chainID] = map[common.Address]map[common.Address]*hexutil.Big{}
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}
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if _, ok := response[chainID][account]; !ok {
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response[chainID][account] = map[common.Address]*hexutil.Big{}
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}
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if _, ok := response[chainID][account][token]; !ok {
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zeroHex := hexutil.Big(*big.NewInt(0))
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response[chainID][account][token] = &zeroHex
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}
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sum := big.NewInt(0).Add(response[chainID][account][token].ToInt(), balance)
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sumHex := hexutil.Big(*sum)
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response[chainID][account][token] = &sumHex
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mu.Unlock()
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}
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contractMaker := contracts.ContractMaker{RPCClient: tm.RPCClient}
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for clientIdx := range clients {
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client := clients[clientIdx]
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ethScanContract, err := contractMaker.NewEthScan(client.ChainID)
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if err == nil {
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fetchChainBalance := false
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var tokenChunks [][]common.Address
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chunkSize := 100
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for i := 0; i < len(tokens); i += chunkSize {
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end := i + chunkSize
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if end > len(tokens) {
|
|
end = len(tokens)
|
|
}
|
|
|
|
tokenChunks = append(tokenChunks, tokens[i:end])
|
|
}
|
|
|
|
for _, token := range tokens {
|
|
if token == nativeChainAddress {
|
|
fetchChainBalance = true
|
|
}
|
|
}
|
|
if fetchChainBalance {
|
|
group.Add(func(parent context.Context) error {
|
|
ctx, cancel := context.WithTimeout(parent, requestTimeout)
|
|
defer cancel()
|
|
res, err := ethScanContract.EtherBalances(&bind.CallOpts{
|
|
Context: ctx,
|
|
}, accounts)
|
|
if err != nil {
|
|
log.Error("can't fetch chain balance", err)
|
|
return nil
|
|
}
|
|
for idx, account := range accounts {
|
|
balance := new(big.Int)
|
|
balance.SetBytes(res[idx].Data)
|
|
updateBalance(client.ChainID, account, common.HexToAddress("0x"), balance)
|
|
}
|
|
|
|
return nil
|
|
})
|
|
}
|
|
|
|
for accountIdx := range accounts {
|
|
account := accounts[accountIdx]
|
|
for idx := range tokenChunks {
|
|
chunk := tokenChunks[idx]
|
|
group.Add(func(parent context.Context) error {
|
|
ctx, cancel := context.WithTimeout(parent, requestTimeout)
|
|
defer cancel()
|
|
res, err := ethScanContract.TokensBalance(&bind.CallOpts{
|
|
Context: ctx,
|
|
}, account, chunk)
|
|
if err != nil {
|
|
log.Error("can't fetch erc20 token balance", "account", account, "error", err)
|
|
return nil
|
|
}
|
|
|
|
for idx, token := range chunk {
|
|
if !res[idx].Success {
|
|
continue
|
|
}
|
|
balance := new(big.Int)
|
|
balance.SetBytes(res[idx].Data)
|
|
updateBalance(client.ChainID, account, token, balance)
|
|
}
|
|
return nil
|
|
})
|
|
}
|
|
}
|
|
} else {
|
|
for tokenIdx := range tokens {
|
|
for accountIdx := range accounts {
|
|
// Below, we set account, token and client from idx on purpose to avoid override
|
|
account := accounts[accountIdx]
|
|
token := tokens[tokenIdx]
|
|
if !tm.inStore(token, client.ChainID) {
|
|
continue
|
|
}
|
|
client := clients[clientIdx]
|
|
group.Add(func(parent context.Context) error {
|
|
ctx, cancel := context.WithTimeout(parent, requestTimeout)
|
|
defer cancel()
|
|
balance, err := tm.GetBalance(ctx, client, account, token)
|
|
|
|
if err != nil {
|
|
log.Error("can't fetch erc20 token balance", "account", account, "token", token, "error", err)
|
|
|
|
return nil
|
|
}
|
|
updateBalance(client.ChainID, account, token, balance)
|
|
return nil
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
select {
|
|
case <-group.WaitAsync():
|
|
case <-parent.Done():
|
|
return nil, parent.Err()
|
|
}
|
|
return response, group.Error()
|
|
}
|