680 lines
24 KiB
Go
680 lines
24 KiB
Go
// Moved here because transactions package depends on accounts package which
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// depends on appdatabase where this functionality is needed
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package common
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import (
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"encoding/binary"
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"fmt"
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"math/big"
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"go.uber.org/zap"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/status-im/status-go/logutils"
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)
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// Type type of transaction
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type Type string
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// Log Event type
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type EventType string
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const (
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// Transaction types
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EthTransfer Type = "eth"
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Erc20Transfer Type = "erc20"
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Erc721Transfer Type = "erc721"
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Erc1155Transfer Type = "erc1155"
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UniswapV2Swap Type = "uniswapV2Swap"
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UniswapV3Swap Type = "uniswapV3Swap"
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HopBridgeFrom Type = "HopBridgeFrom"
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HopBridgeTo Type = "HopBridgeTo"
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unknownTransaction Type = "unknown"
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// Event types
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WETHDepositEventType EventType = "wethDepositEvent"
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WETHWithdrawalEventType EventType = "wethWithdrawalEvent"
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Erc20TransferEventType EventType = "erc20Event"
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Erc721TransferEventType EventType = "erc721Event"
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Erc1155TransferSingleEventType EventType = "erc1155SingleEvent"
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Erc1155TransferBatchEventType EventType = "erc1155BatchEvent"
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UniswapV2SwapEventType EventType = "uniswapV2SwapEvent"
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UniswapV3SwapEventType EventType = "uniswapV3SwapEvent"
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HopBridgeTransferSentToL2EventType EventType = "hopBridgeTransferSentToL2Event"
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HopBridgeTransferFromL1CompletedEventType EventType = "hopBridgeTransferFromL1CompletedEvent"
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HopBridgeWithdrawalBondedEventType EventType = "hopBridgeWithdrawalBondedEvent"
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HopBridgeTransferSentEventType EventType = "hopBridgeTransferSentEvent"
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UnknownEventType EventType = "unknownEvent"
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// Deposit (index_topic_1 address dst, uint256 wad)
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wethDepositEventSignature = "Deposit(address,uint256)"
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// Withdrawal (index_topic_1 address src, uint256 wad)
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wethWithdrawalEventSignature = "Withdrawal(address,uint256)"
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// Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)
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// Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)
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Erc20_721TransferEventSignature = "Transfer(address,address,uint256)"
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Erc1155TransferSingleEventSignature = "TransferSingle(address,address,address,uint256,uint256)" // operator, from, to, id, value
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Erc1155TransferBatchEventSignature = "TransferBatch(address,address,address,uint256[],uint256[])" // operator, from, to, ids, values
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erc20TransferEventIndexedParameters = 3 // signature, from, to
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erc721TransferEventIndexedParameters = 4 // signature, from, to, tokenId
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erc1155TransferEventIndexedParameters = 4 // signature, operator, from, to (id, value are not indexed)
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// Swap (index_topic_1 address sender, uint256 amount0In, uint256 amount1In, uint256 amount0Out, uint256 amount1Out, index_topic_2 address to)
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uniswapV2SwapEventSignature = "Swap(address,uint256,uint256,uint256,uint256,address)" // also used by SushiSwap
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// Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 sqrtPriceX96, uint128 liquidity, int24 tick)
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uniswapV3SwapEventSignature = "Swap(address,address,int256,int256,uint160,uint128,int24)"
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// TransferSentToL2 (index_topic_1 uint256 chainId, index_topic_2 address recipient, uint256 amount, uint256 amountOutMin, uint256 deadline, index_topic_3 address relayer, uint256 relayerFee)
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hopBridgeTransferSentToL2EventSignature = "TransferSentToL2(uint256,address,uint256,uint256,uint256,address,uint256)"
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// TransferFromL1Completed (index_topic_1 address recipient, uint256 amount, uint256 amountOutMin, uint256 deadline, index_topic_2 address relayer, uint256 relayerFee)
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HopBridgeTransferFromL1CompletedEventSignature = "TransferFromL1Completed(address,uint256,uint256,uint256,address,uint256)"
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// WithdrawalBonded (index_topic_1 bytes32 transferID, uint256 amount)
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hopBridgeWithdrawalBondedEventSignature = "WithdrawalBonded(bytes32,uint256)"
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// TransferSent (index_topic_1 bytes32 transferID, index_topic_2 uint256 chainId, index_topic_3 address recipient, uint256 amount, bytes32 transferNonce, uint256 bonderFee, uint256 index, uint256 amountOutMin, uint256 deadline)
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hopBridgeTransferSentEventSignature = "TransferSent(bytes32,uint256,address,uint256,bytes32,uint256,uint256,uint256,uint256)"
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)
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var (
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// MaxUint256 is the maximum value that can be represented by a uint256.
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MaxUint256 = new(big.Int).Sub(new(big.Int).Lsh(common.Big1, 256), common.Big1)
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)
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// Detect event type for a cetain item from the Events Log
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func GetEventType(log *types.Log) EventType {
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wethDepositEventSignatureHash := GetEventSignatureHash(wethDepositEventSignature)
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wethWithdrawalEventSignatureHash := GetEventSignatureHash(wethWithdrawalEventSignature)
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erc20_721TransferEventSignatureHash := GetEventSignatureHash(Erc20_721TransferEventSignature)
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erc1155TransferSingleEventSignatureHash := GetEventSignatureHash(Erc1155TransferSingleEventSignature)
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erc1155TransferBatchEventSignatureHash := GetEventSignatureHash(Erc1155TransferBatchEventSignature)
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uniswapV2SwapEventSignatureHash := GetEventSignatureHash(uniswapV2SwapEventSignature)
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uniswapV3SwapEventSignatureHash := GetEventSignatureHash(uniswapV3SwapEventSignature)
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hopBridgeTransferSentToL2EventSignatureHash := GetEventSignatureHash(hopBridgeTransferSentToL2EventSignature)
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hopBridgeTransferFromL1CompletedEventSignatureHash := GetEventSignatureHash(HopBridgeTransferFromL1CompletedEventSignature)
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hopBridgeWithdrawalBondedEventSignatureHash := GetEventSignatureHash(hopBridgeWithdrawalBondedEventSignature)
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hopBridgeTransferSentEventSignatureHash := GetEventSignatureHash(hopBridgeTransferSentEventSignature)
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if len(log.Topics) > 0 {
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switch log.Topics[0] {
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case wethDepositEventSignatureHash:
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return WETHDepositEventType
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case wethWithdrawalEventSignatureHash:
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return WETHWithdrawalEventType
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case erc20_721TransferEventSignatureHash:
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switch len(log.Topics) {
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case erc20TransferEventIndexedParameters:
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return Erc20TransferEventType
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case erc721TransferEventIndexedParameters:
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return Erc721TransferEventType
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}
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case erc1155TransferSingleEventSignatureHash:
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return Erc1155TransferSingleEventType
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case erc1155TransferBatchEventSignatureHash:
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return Erc1155TransferBatchEventType
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case uniswapV2SwapEventSignatureHash:
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return UniswapV2SwapEventType
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case uniswapV3SwapEventSignatureHash:
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return UniswapV3SwapEventType
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case hopBridgeTransferSentToL2EventSignatureHash:
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return HopBridgeTransferSentToL2EventType
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case hopBridgeTransferFromL1CompletedEventSignatureHash:
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return HopBridgeTransferFromL1CompletedEventType
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case hopBridgeWithdrawalBondedEventSignatureHash:
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return HopBridgeWithdrawalBondedEventType
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case hopBridgeTransferSentEventSignatureHash:
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return HopBridgeTransferSentEventType
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}
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}
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return UnknownEventType
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}
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func EventTypeToSubtransactionType(eventType EventType) Type {
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switch eventType {
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case Erc20TransferEventType:
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return Erc20Transfer
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case Erc721TransferEventType:
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return Erc721Transfer
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case Erc1155TransferSingleEventType, Erc1155TransferBatchEventType:
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return Erc1155Transfer
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case UniswapV2SwapEventType:
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return UniswapV2Swap
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case UniswapV3SwapEventType:
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return UniswapV3Swap
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case HopBridgeTransferSentToL2EventType, HopBridgeTransferSentEventType:
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return HopBridgeFrom
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case HopBridgeTransferFromL1CompletedEventType, HopBridgeWithdrawalBondedEventType:
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return HopBridgeTo
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}
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return unknownTransaction
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}
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func GetFirstEvent(logs []*types.Log) (EventType, *types.Log) {
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for _, log := range logs {
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eventType := GetEventType(log)
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if eventType != UnknownEventType {
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return eventType, log
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}
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}
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return UnknownEventType, nil
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}
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func IsTokenTransfer(logs []*types.Log) bool {
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eventType, _ := GetFirstEvent(logs)
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switch eventType {
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case Erc20TransferEventType, Erc721TransferEventType, Erc1155TransferSingleEventType, Erc1155TransferBatchEventType:
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return true
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}
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return false
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}
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func ParseWETHDepositLog(ethlog *types.Log) (src common.Address, amount *big.Int) {
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amount = new(big.Int)
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if len(ethlog.Topics) < 2 {
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logutils.ZapLogger().Warn("not enough topics for WETH deposit", zap.Stringers("topics", ethlog.Topics))
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return
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}
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if len(ethlog.Topics[1]) != 32 {
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logutils.ZapLogger().Warn("second topic is not padded to 32 byte address", zap.Stringer("topic", ethlog.Topics[1]))
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return
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}
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copy(src[:], ethlog.Topics[1][12:])
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if len(ethlog.Data) != 32 {
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logutils.ZapLogger().Warn("data is not padded to 32 byte big int", zap.Binary("data", ethlog.Data))
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return
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}
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amount.SetBytes(ethlog.Data)
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return
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}
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func ParseWETHWithdrawLog(ethlog *types.Log) (dst common.Address, amount *big.Int) {
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amount = new(big.Int)
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if len(ethlog.Topics) < 2 {
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logutils.ZapLogger().Warn("not enough topics for WETH withdraw", zap.Stringers("topics", ethlog.Topics))
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return
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}
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if len(ethlog.Topics[1]) != 32 {
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logutils.ZapLogger().Warn("second topic is not padded to 32 byte address", zap.Stringer("topic", ethlog.Topics[1]))
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return
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}
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copy(dst[:], ethlog.Topics[1][12:])
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if len(ethlog.Data) != 32 {
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logutils.ZapLogger().Warn("data is not padded to 32 byte big int", zap.Binary("data", ethlog.Data))
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return
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}
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amount.SetBytes(ethlog.Data)
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return
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}
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func ParseErc20TransferLog(ethlog *types.Log) (from, to common.Address, amount *big.Int) {
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amount = new(big.Int)
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if len(ethlog.Topics) < erc20TransferEventIndexedParameters {
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logutils.ZapLogger().Warn("not enough topics for erc20 transfer", zap.Stringers("topics", ethlog.Topics))
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return
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}
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var err error
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from, to, err = getFromToAddresses(*ethlog)
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if err != nil {
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logutils.ZapLogger().Error("log_parser::ParseErc20TransferLog", zap.Error(err))
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return
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}
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if len(ethlog.Data) != 32 {
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logutils.ZapLogger().Warn("data is not padded to 32 byts big int", zap.Binary("data", ethlog.Data))
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return
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}
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amount.SetBytes(ethlog.Data)
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return
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}
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func ParseErc721TransferLog(ethlog *types.Log) (from, to common.Address, tokenID *big.Int) {
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tokenID = new(big.Int)
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if len(ethlog.Topics) < erc721TransferEventIndexedParameters {
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logutils.ZapLogger().Warn("not enough topics for erc721 transfer", zap.Stringers("topics", ethlog.Topics))
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return
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}
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var err error
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from, to, err = getFromToAddresses(*ethlog)
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if err != nil {
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logutils.ZapLogger().Error("log_parser::ParseErc721TransferLog", zap.Error(err))
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return
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}
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tokenID.SetBytes(ethlog.Topics[3][:])
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return
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}
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func GetLogSubTxID(log types.Log) common.Hash {
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// Get unique ID by using TxHash and log index
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index := [4]byte{}
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binary.BigEndian.PutUint32(index[:], uint32(log.Index))
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return crypto.Keccak256Hash(log.TxHash.Bytes(), index[:])
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}
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func getLogSubTxIDWithTokenIDIndex(log types.Log, tokenIDIdx uint16) common.Hash {
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// Get unique ID by using TxHash, log index and extra bytes (token id index for ERC1155 TransferBatch)
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index := [4]byte{}
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value := uint32(log.Index&0x0000FFFF) | (uint32(tokenIDIdx) << 16) // log index should not exceed uint16 max value
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binary.BigEndian.PutUint32(index[:], value)
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return crypto.Keccak256Hash(log.TxHash.Bytes(), index[:])
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}
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func checkTopicsLength(ethlog types.Log, startIdx, endIdx int) (err error) {
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for i := startIdx; i < endIdx; i++ {
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if len(ethlog.Topics[i]) != common.HashLength {
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err = fmt.Errorf("topic %d is not padded to %d byte address, topic=%s", i, common.HashLength, ethlog.Topics[i])
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logutils.ZapLogger().Error("log_parser::checkTopicsLength", zap.Error(err))
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return
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}
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}
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return
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}
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func getFromToAddresses(ethlog types.Log) (from, to common.Address, err error) {
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eventType := GetEventType(ðlog)
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addressIdx := common.HashLength - common.AddressLength
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switch eventType {
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case Erc1155TransferSingleEventType, Erc1155TransferBatchEventType:
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err = checkTopicsLength(ethlog, 2, 4)
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if err != nil {
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return
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}
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copy(from[:], ethlog.Topics[2][addressIdx:])
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copy(to[:], ethlog.Topics[3][addressIdx:])
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return
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case Erc20TransferEventType, Erc721TransferEventType, UniswapV2SwapEventType, UniswapV3SwapEventType, HopBridgeTransferFromL1CompletedEventType:
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err = checkTopicsLength(ethlog, 1, 3)
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if err != nil {
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return
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}
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copy(from[:], ethlog.Topics[1][addressIdx:])
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copy(to[:], ethlog.Topics[2][addressIdx:])
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return
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}
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return from, to, fmt.Errorf("unsupported event type to get from/to adddresses %s", eventType)
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}
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func ParseTransferLog(ethlog types.Log) (from, to common.Address, txIDs []common.Hash, tokenIDs, values []*big.Int, err error) {
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eventType := GetEventType(ðlog)
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switch eventType {
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case Erc20TransferEventType:
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var amount *big.Int
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from, to, amount = ParseErc20TransferLog(ðlog)
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txIDs = append(txIDs, GetLogSubTxID(ethlog))
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values = append(values, amount)
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return
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case Erc721TransferEventType:
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var tokenID *big.Int
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from, to, tokenID = ParseErc721TransferLog(ðlog)
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txIDs = append(txIDs, GetLogSubTxID(ethlog))
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tokenIDs = append(tokenIDs, tokenID)
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values = append(values, big.NewInt(1))
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return
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case Erc1155TransferSingleEventType, Erc1155TransferBatchEventType:
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_, from, to, tokenIDs, values, err = ParseErc1155TransferLog(ðlog, eventType)
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for i := range tokenIDs {
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txIDs = append(txIDs, getLogSubTxIDWithTokenIDIndex(ethlog, uint16(i)))
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}
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return
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}
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return from, to, txIDs, tokenIDs, values, fmt.Errorf("unsupported event type in log_parser::ParseTransferLogs %s", eventType)
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}
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func ParseErc1155TransferLog(ethlog *types.Log, evType EventType) (operator, from, to common.Address, ids, amounts []*big.Int, err error) {
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if len(ethlog.Topics) < erc1155TransferEventIndexedParameters {
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err = fmt.Errorf("not enough topics for erc1155 transfer %s, %v", "topics", ethlog.Topics)
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logutils.ZapLogger().Error("log_parser::ParseErc1155TransferLog", zap.Error(err))
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return
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}
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err = checkTopicsLength(*ethlog, 1, erc1155TransferEventIndexedParameters)
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if err != nil {
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return
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}
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addressIdx := common.HashLength - common.AddressLength
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copy(operator[:], ethlog.Topics[1][addressIdx:])
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from, to, err = getFromToAddresses(*ethlog)
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if err != nil {
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logutils.ZapLogger().Error("log_parser::ParseErc1155TransferLog", zap.Error(err))
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return
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}
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if len(ethlog.Data) == 0 || len(ethlog.Data)%(common.HashLength*2) != 0 {
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err = fmt.Errorf("data is not padded to 64 bytes %s, %v", "data", ethlog.Data)
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logutils.ZapLogger().Error("log_parser::ParseErc1155TransferLog", zap.Error(err))
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return
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}
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if evType == Erc1155TransferSingleEventType {
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ids = append(ids, new(big.Int).SetBytes(ethlog.Data[:common.HashLength]))
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amounts = append(amounts, new(big.Int).SetBytes(ethlog.Data[common.HashLength:]))
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logutils.ZapLogger().Debug("log_parser::ParseErc1155TransferSingleLog",
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zap.Any("ids", ids),
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zap.Any("amounts", amounts),
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)
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} else {
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// idTypeSize := new(big.Int).SetBytes(ethlog.Data[:common.HashLength]).Uint64() // Left for knowledge
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// valueTypeSize := new(big.Int).SetBytes(ethlog.Data[common.HashLength : common.HashLength*2]).Uint64() // Left for knowledge
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idsArraySize := new(big.Int).SetBytes(ethlog.Data[common.HashLength*2 : common.HashLength*2+common.HashLength]).Uint64()
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initialOffset := common.HashLength*2 + common.HashLength
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for i := 0; i < int(idsArraySize); i++ {
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ids = append(ids, new(big.Int).SetBytes(ethlog.Data[initialOffset+i*common.HashLength:initialOffset+(i+1)*common.HashLength]))
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}
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valuesArraySize := new(big.Int).SetBytes(ethlog.Data[initialOffset+int(idsArraySize)*common.HashLength : initialOffset+int(idsArraySize+1)*common.HashLength]).Uint64()
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if idsArraySize != valuesArraySize {
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err = fmt.Errorf("ids and values sizes don't match %d, %d", idsArraySize, valuesArraySize)
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logutils.ZapLogger().Error("log_parser::ParseErc1155TransferBatchLog", zap.Error(err))
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return
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}
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initialOffset = initialOffset + int(idsArraySize+1)*common.HashLength
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for i := 0; i < int(valuesArraySize); i++ {
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amounts = append(amounts, new(big.Int).SetBytes(ethlog.Data[initialOffset+i*common.HashLength:initialOffset+(i+1)*common.HashLength]))
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logutils.ZapLogger().Debug("log_parser::ParseErc1155TransferBatchLog",
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zap.Any("id", ids[i]),
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zap.Any("amount", amounts[i]),
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)
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}
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}
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return
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}
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func ParseUniswapV2Log(ethlog *types.Log) (pairAddress common.Address, from common.Address, to common.Address, amount0In *big.Int, amount1In *big.Int, amount0Out *big.Int, amount1Out *big.Int, err error) {
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amount0In = new(big.Int)
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amount1In = new(big.Int)
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amount0Out = new(big.Int)
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amount1Out = new(big.Int)
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if len(ethlog.Topics) < 3 {
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err = fmt.Errorf("not enough topics for uniswapV2 swap %s, %v", "topics", ethlog.Topics)
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return
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}
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pairAddress = ethlog.Address
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from, to, err = getFromToAddresses(*ethlog)
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if err != nil {
|
|
logutils.ZapLogger().Error("log_parser::ParseUniswapV2Log", zap.Error(err))
|
|
return
|
|
}
|
|
if len(ethlog.Data) != 32*4 {
|
|
err = fmt.Errorf("data is not padded to 4 * 32 bytes big int %s, %v", "data", ethlog.Data)
|
|
return
|
|
}
|
|
amount0In.SetBytes(ethlog.Data[0:32])
|
|
amount1In.SetBytes(ethlog.Data[32:64])
|
|
amount0Out.SetBytes(ethlog.Data[64:96])
|
|
amount1Out.SetBytes(ethlog.Data[96:128])
|
|
|
|
return
|
|
}
|
|
|
|
func readInt256(b []byte) *big.Int {
|
|
// big.SetBytes can't tell if a number is negative or positive in itself.
|
|
// On EVM, if the returned number > max int256, it is negative.
|
|
// A number is > max int256 if the bit at position 255 is set.
|
|
ret := new(big.Int).SetBytes(b)
|
|
if ret.Bit(255) == 1 {
|
|
ret.Add(MaxUint256, new(big.Int).Neg(ret))
|
|
ret.Add(ret, common.Big1)
|
|
ret.Neg(ret)
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func ParseUniswapV3Log(ethlog *types.Log) (poolAddress common.Address, sender common.Address, recipient common.Address, amount0 *big.Int, amount1 *big.Int, err error) {
|
|
amount0 = new(big.Int)
|
|
amount1 = new(big.Int)
|
|
|
|
if len(ethlog.Topics) < 3 {
|
|
err = fmt.Errorf("not enough topics for uniswapV3 swap %s, %v", "topics", ethlog.Topics)
|
|
return
|
|
}
|
|
|
|
poolAddress = ethlog.Address
|
|
sender, recipient, err = getFromToAddresses(*ethlog)
|
|
if err != nil {
|
|
logutils.ZapLogger().Error("log_parser::ParseUniswapV3Log", zap.Error(err))
|
|
return
|
|
}
|
|
if len(ethlog.Data) != 32*5 {
|
|
err = fmt.Errorf("data is not padded to 5 * 32 bytes big int %s, %v", "data", ethlog.Data)
|
|
return
|
|
}
|
|
amount0 = readInt256(ethlog.Data[0:32])
|
|
amount1 = readInt256(ethlog.Data[32:64])
|
|
|
|
return
|
|
}
|
|
|
|
func ParseHopBridgeTransferSentToL2Log(ethlog *types.Log) (chainID uint64, recipient common.Address, relayer common.Address, amount *big.Int, err error) {
|
|
chainIDInt := new(big.Int)
|
|
amount = new(big.Int)
|
|
|
|
if len(ethlog.Topics) < 4 {
|
|
err = fmt.Errorf("not enough topics for HopBridgeTransferSentToL2 event %s, %v", "topics", ethlog.Topics)
|
|
return
|
|
}
|
|
|
|
if len(ethlog.Topics[1]) != 32 {
|
|
err = fmt.Errorf("second topic is not padded to 32 byte address %s, %v", "topic", ethlog.Topics[1])
|
|
return
|
|
}
|
|
chainIDInt.SetBytes(ethlog.Topics[1][:])
|
|
chainID = chainIDInt.Uint64()
|
|
|
|
if len(ethlog.Topics[2]) != 32 {
|
|
err = fmt.Errorf("third topic is not padded to 32 byte address %s, %v", "topic", ethlog.Topics[2])
|
|
return
|
|
}
|
|
copy(recipient[:], ethlog.Topics[2][12:])
|
|
|
|
if len(ethlog.Topics[3]) != 32 {
|
|
err = fmt.Errorf("fourth topic is not padded to 32 byte address %s, %v", "topic", ethlog.Topics[3])
|
|
return
|
|
}
|
|
copy(relayer[:], ethlog.Topics[3][12:])
|
|
|
|
if len(ethlog.Data) != 32*4 {
|
|
err = fmt.Errorf("data is not padded to 4 * 32 bytes big int %s, %v", "data", ethlog.Data)
|
|
return
|
|
}
|
|
|
|
amount.SetBytes(ethlog.Data[0:32])
|
|
|
|
return
|
|
}
|
|
|
|
func ParseHopBridgeTransferFromL1CompletedLog(ethlog *types.Log) (recipient common.Address, relayer common.Address, amount *big.Int, err error) {
|
|
amount = new(big.Int)
|
|
|
|
if len(ethlog.Topics) < 3 {
|
|
err = fmt.Errorf("not enough topics for HopBridgeTransferFromL1Completed event %s, %v", "topics", ethlog.Topics)
|
|
return
|
|
}
|
|
|
|
recipient, relayer, err = getFromToAddresses(*ethlog)
|
|
if err != nil {
|
|
logutils.ZapLogger().Error("log_parser::ParseHopBridgeTransferFromL1CompletedLog", zap.Error(err))
|
|
return
|
|
}
|
|
|
|
if len(ethlog.Data) != 32*4 {
|
|
err = fmt.Errorf("data is not padded to 4 * 32 bytes big int %s, %v", "data", ethlog.Data)
|
|
return
|
|
}
|
|
|
|
amount.SetBytes(ethlog.Data[0:32])
|
|
|
|
return
|
|
}
|
|
|
|
func ParseHopWithdrawalBondedLog(ethlog *types.Log) (transferID *big.Int, amount *big.Int, err error) {
|
|
transferID = new(big.Int)
|
|
amount = new(big.Int)
|
|
|
|
if len(ethlog.Topics) < 2 {
|
|
err = fmt.Errorf("not enough topics for HopWithdrawalBonded event %s, %v", "topics", ethlog.Topics)
|
|
return
|
|
}
|
|
|
|
if len(ethlog.Topics[1]) != 32 {
|
|
err = fmt.Errorf("second topic is not padded to 32 byte address %s, %v", "topic", ethlog.Topics[1])
|
|
return
|
|
}
|
|
transferID.SetBytes(ethlog.Topics[1][:])
|
|
|
|
if len(ethlog.Data) != 32*1 {
|
|
err = fmt.Errorf("data is not padded to 1 * 32 bytes big int %s, %v", "data", ethlog.Data)
|
|
return
|
|
}
|
|
|
|
amount.SetBytes(ethlog.Data[0:32])
|
|
|
|
return
|
|
}
|
|
|
|
func ParseHopBridgeTransferSentLog(ethlog *types.Log) (transferID *big.Int, chainID uint64, recipient common.Address, amount *big.Int, transferNonce *big.Int, bonderFee *big.Int, index *big.Int, amountOutMin *big.Int, deadline *big.Int, err error) {
|
|
transferID = new(big.Int)
|
|
chainIDInt := new(big.Int)
|
|
amount = new(big.Int)
|
|
transferNonce = new(big.Int)
|
|
bonderFee = new(big.Int)
|
|
index = new(big.Int)
|
|
amountOutMin = new(big.Int)
|
|
deadline = new(big.Int)
|
|
|
|
if len(ethlog.Topics) < 4 {
|
|
err = fmt.Errorf("not enough topics for HopBridgeTransferSent event %s, %v", "topics", ethlog.Topics)
|
|
return
|
|
}
|
|
|
|
if len(ethlog.Topics[1]) != 32 {
|
|
err = fmt.Errorf("second topic is not padded to 32 byte big int %s, %v", "topic", ethlog.Topics[1])
|
|
return
|
|
}
|
|
transferID.SetBytes(ethlog.Topics[1][:])
|
|
|
|
if len(ethlog.Topics[2]) != 32 {
|
|
err = fmt.Errorf("third topic is not padded to 32 byte big int %s, %v", "topic", ethlog.Topics[2])
|
|
return
|
|
}
|
|
chainIDInt.SetBytes(ethlog.Topics[2][:])
|
|
chainID = chainIDInt.Uint64()
|
|
|
|
if len(ethlog.Topics[3]) != 32 {
|
|
err = fmt.Errorf("fourth topic is not padded to 32 byte address %s, %v", "topic", ethlog.Topics[3])
|
|
return
|
|
}
|
|
copy(recipient[:], ethlog.Topics[2][12:])
|
|
|
|
if len(ethlog.Data) != 32*6 {
|
|
err = fmt.Errorf("data is not padded to 6 * 32 bytes big int %s, %v", "data", ethlog.Data)
|
|
return
|
|
}
|
|
|
|
amount.SetBytes(ethlog.Data[0:32])
|
|
transferNonce.SetBytes(ethlog.Data[32:64])
|
|
bonderFee.SetBytes(ethlog.Data[64:96])
|
|
index.SetBytes(ethlog.Data[96:128])
|
|
amountOutMin.SetBytes(ethlog.Data[128:160])
|
|
deadline.SetBytes(ethlog.Data[160:192])
|
|
|
|
return
|
|
}
|
|
|
|
func GetEventSignatureHash(signature string) common.Hash {
|
|
return crypto.Keccak256Hash([]byte(signature))
|
|
}
|
|
|
|
func ExtractTokenTransferData(dbEntryType Type, log *types.Log, tx *types.Transaction) (correctType Type, tokenAddress *common.Address, txFrom *common.Address, txTo *common.Address) {
|
|
// erc721 transfers share signature with erc20 ones, so they both used to be categorized as erc20
|
|
// by the Downloader. We fix this here since they might be mis-categorized in the db.
|
|
if dbEntryType == Erc20Transfer {
|
|
eventType := GetEventType(log)
|
|
correctType = EventTypeToSubtransactionType(eventType)
|
|
} else {
|
|
correctType = dbEntryType
|
|
}
|
|
|
|
switch correctType {
|
|
case Erc20Transfer:
|
|
tokenAddress = new(common.Address)
|
|
*tokenAddress = log.Address
|
|
from, to, _ := ParseErc20TransferLog(log)
|
|
txFrom = &from
|
|
txTo = &to
|
|
case Erc721Transfer:
|
|
tokenAddress = new(common.Address)
|
|
*tokenAddress = log.Address
|
|
from, to, _ := ParseErc721TransferLog(log)
|
|
txFrom = &from
|
|
txTo = &to
|
|
case Erc1155Transfer:
|
|
tokenAddress = new(common.Address)
|
|
*tokenAddress = log.Address
|
|
_, from, to, _, _, err := ParseErc1155TransferLog(log, Erc1155TransferSingleEventType) // from/to extraction is the same for single and batch
|
|
if err != nil {
|
|
return
|
|
}
|
|
txFrom = &from
|
|
txTo = &to
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func TxDataContainsAddress(txType uint8, txData []byte, address common.Address) bool {
|
|
// First 4 bytes are related to the methodID
|
|
const methodIDLen int = 4
|
|
const paramLen int = 32
|
|
|
|
var paramOffset int = 0
|
|
switch txType {
|
|
case types.OptimismDepositTxType:
|
|
// Offset for relayMessage data.
|
|
// I actually don't know what the 2x32 + 4 bytes mean, but it seems to be constant in all transactions I've
|
|
// checked. Will update the comment when I find out more about it.
|
|
paramOffset = 5*32 + 2*32 + 4
|
|
}
|
|
|
|
// Check if address is contained in any 32-byte parameter
|
|
for paramStart := methodIDLen + paramOffset; paramStart < len(txData); paramStart += paramLen {
|
|
paramEnd := paramStart + paramLen
|
|
|
|
if paramEnd > len(txData) {
|
|
break
|
|
}
|
|
|
|
// Address bytes should be in the last addressLen positions
|
|
paramBytes := txData[paramStart:paramEnd]
|
|
paramAddress := common.BytesToAddress(paramBytes)
|
|
if address == paramAddress {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|