481 lines
12 KiB
Go
481 lines
12 KiB
Go
package transfer
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import (
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"database/sql"
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"database/sql/driver"
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"encoding/json"
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"errors"
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"math/big"
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"reflect"
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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/log"
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"github.com/status-im/status-go/services/wallet/bigint"
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)
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// DBHeader fields from header that are stored in database.
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type DBHeader struct {
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Number *big.Int
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Hash common.Hash
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Timestamp uint64
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Erc20Transfers []*Transfer
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Network uint64
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Address common.Address
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// Head is true if the block was a head at the time it was pulled from chain.
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Head bool
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// Loaded is true if trasfers from this block has been already fetched
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Loaded bool
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}
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func toDBHeader(header *types.Header) *DBHeader {
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return &DBHeader{
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Hash: header.Hash(),
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Number: header.Number,
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Timestamp: header.Time,
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Loaded: false,
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}
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}
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// SyncOption is used to specify that application processed transfers for that block.
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type SyncOption uint
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// JSONBlob type for marshaling/unmarshaling inner type to json.
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type JSONBlob struct {
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data interface{}
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}
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// Scan implements interface.
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func (blob *JSONBlob) Scan(value interface{}) error {
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if value == nil || reflect.ValueOf(blob.data).IsNil() {
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return nil
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}
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bytes, ok := value.([]byte)
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if !ok {
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return errors.New("not a byte slice")
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}
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if len(bytes) == 0 {
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return nil
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}
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err := json.Unmarshal(bytes, blob.data)
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return err
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}
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// Value implements interface.
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func (blob *JSONBlob) Value() (driver.Value, error) {
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if blob.data == nil || reflect.ValueOf(blob.data).IsNil() {
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return nil, nil
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}
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return json.Marshal(blob.data)
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}
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func NewDB(client *sql.DB) *Database {
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return &Database{client: client}
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}
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// Database sql wrapper for operations with wallet objects.
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type Database struct {
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client *sql.DB
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}
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// Close closes database.
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func (db *Database) Close() error {
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return db.client.Close()
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}
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func (db *Database) ProcessBlocks(chainID uint64, account common.Address, from *big.Int, to *LastKnownBlock, headers []*DBHeader) (err error) {
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var (
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tx *sql.Tx
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)
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tx, err = db.client.Begin()
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if err != nil {
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return err
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}
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defer func() {
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if err == nil {
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err = tx.Commit()
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return
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}
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_ = tx.Rollback()
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}()
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err = insertBlocksWithTransactions(chainID, tx, account, headers)
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if err != nil {
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return
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}
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err = upsertRange(chainID, tx, account, from, to)
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if err != nil {
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return
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}
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return
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}
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func (db *Database) SaveBlocks(chainID uint64, account common.Address, headers []*DBHeader) (err error) {
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var (
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tx *sql.Tx
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)
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tx, err = db.client.Begin()
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if err != nil {
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return err
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}
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defer func() {
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if err == nil {
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err = tx.Commit()
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return
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}
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_ = tx.Rollback()
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}()
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err = insertBlocksWithTransactions(chainID, tx, account, headers)
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if err != nil {
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return
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}
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return
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}
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// ProcessTransfers atomically adds/removes blocks and adds new transfers.
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func (db *Database) ProcessTransfers(chainID uint64, transfers []Transfer, removed []*DBHeader) (err error) {
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var (
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tx *sql.Tx
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)
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tx, err = db.client.Begin()
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if err != nil {
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return err
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}
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defer func() {
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if err == nil {
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err = tx.Commit()
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return
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}
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_ = tx.Rollback()
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}()
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err = deleteHeaders(tx, removed)
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if err != nil {
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return
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}
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err = updateOrInsertTransfers(chainID, tx, transfers)
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if err != nil {
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return
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}
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return
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}
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// SaveTransfers
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func (db *Database) SaveTransfers(chainID uint64, address common.Address, transfers []Transfer, blocks []*big.Int) (err error) {
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var tx *sql.Tx
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tx, err = db.client.Begin()
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if err != nil {
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return err
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}
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defer func() {
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if err == nil {
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err = tx.Commit()
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return
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}
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_ = tx.Rollback()
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}()
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err = updateOrInsertTransfers(chainID, tx, transfers)
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if err != nil {
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return
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}
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err = markBlocksAsLoaded(chainID, tx, address, blocks)
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if err != nil {
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return
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}
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return
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}
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// GetTransfersInRange loads transfers for a given address between two blocks.
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func (db *Database) GetTransfersInRange(chainID uint64, address common.Address, start, end *big.Int) (rst []Transfer, err error) {
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query := newTransfersQuery().FilterNetwork(chainID).FilterAddress(address).FilterStart(start).FilterEnd(end).FilterLoaded(1)
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rows, err := db.client.Query(query.String(), query.Args()...)
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if err != nil {
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return
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}
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defer rows.Close()
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return query.Scan(rows)
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}
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// GetTransfersByAddress loads transfers for a given address between two blocks.
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func (db *Database) GetTransfersByAddress(chainID uint64, address common.Address, toBlock *big.Int, limit int64) (rst []Transfer, err error) {
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query := newTransfersQuery().
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FilterNetwork(chainID).
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FilterAddress(address).
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FilterEnd(toBlock).
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FilterLoaded(1).
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Limit(limit)
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rows, err := db.client.Query(query.String(), query.Args()...)
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if err != nil {
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return
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}
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defer rows.Close()
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return query.Scan(rows)
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}
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// GetTransfersByAddressAndBlock loads transfers for a given address and block.
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func (db *Database) GetTransfersByAddressAndBlock(chainID uint64, address common.Address, block *big.Int, limit int64) (rst []Transfer, err error) {
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query := newTransfersQuery().
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FilterNetwork(chainID).
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FilterAddress(address).
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FilterBlockNumber(block).
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FilterLoaded(1).
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Limit(limit)
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rows, err := db.client.Query(query.String(), query.Args()...)
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if err != nil {
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return
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}
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defer rows.Close()
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return query.Scan(rows)
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}
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// GetTransfers load transfers transfer betweeen two blocks.
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func (db *Database) GetTransfers(chainID uint64, start, end *big.Int) (rst []Transfer, err error) {
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query := newTransfersQuery().FilterNetwork(chainID).FilterStart(start).FilterEnd(end).FilterLoaded(1)
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rows, err := db.client.Query(query.String(), query.Args()...)
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if err != nil {
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return
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}
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defer rows.Close()
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return query.Scan(rows)
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}
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func (db *Database) GetPreloadedTransactions(chainID uint64, address common.Address, blockHash common.Hash) (rst []Transfer, err error) {
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query := newTransfersQuery().
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FilterNetwork(chainID).
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FilterAddress(address).
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FilterBlockHash(blockHash).
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FilterLoaded(0)
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rows, err := db.client.Query(query.String(), query.Args()...)
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if err != nil {
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return
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}
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defer rows.Close()
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return query.Scan(rows)
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}
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func (db *Database) GetTransactionsLog(chainID uint64, address common.Address, transactionHash common.Hash) (*types.Log, error) {
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l := &types.Log{}
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err := db.client.QueryRow("SELECT log FROM transfers WHERE network_id = ? AND address = ? AND hash = ?",
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chainID, address, transactionHash).
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Scan(&JSONBlob{l})
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if err == nil {
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return l, nil
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}
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if err == sql.ErrNoRows {
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return nil, nil
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}
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return nil, err
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}
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// SaveHeaders stores a list of headers atomically.
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func (db *Database) SaveHeaders(chainID uint64, headers []*types.Header, address common.Address) (err error) {
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var (
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tx *sql.Tx
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insert *sql.Stmt
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)
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tx, err = db.client.Begin()
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if err != nil {
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return
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}
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insert, err = tx.Prepare("INSERT INTO blocks(network_id, blk_number, blk_hash, address) VALUES (?, ?, ?, ?)")
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if err != nil {
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return
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}
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defer func() {
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if err == nil {
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err = tx.Commit()
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} else {
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_ = tx.Rollback()
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}
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}()
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for _, h := range headers {
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_, err = insert.Exec(chainID, (*bigint.SQLBigInt)(h.Number), h.Hash(), address)
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if err != nil {
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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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// GetHeaderByNumber selects header using block number.
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func (db *Database) GetHeaderByNumber(chainID uint64, number *big.Int) (header *DBHeader, err error) {
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header = &DBHeader{Hash: common.Hash{}, Number: new(big.Int)}
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err = db.client.QueryRow("SELECT blk_hash, blk_number FROM blocks WHERE blk_number = ? AND network_id = ?", (*bigint.SQLBigInt)(number), chainID).Scan(&header.Hash, (*bigint.SQLBigInt)(header.Number))
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if err == nil {
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return header, nil
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}
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if err == sql.ErrNoRows {
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return nil, nil
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}
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return nil, err
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}
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// statementCreator allows to pass transaction or database to use in consumer.
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type statementCreator interface {
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Prepare(query string) (*sql.Stmt, error)
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}
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func deleteHeaders(creator statementCreator, headers []*DBHeader) error {
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delete, err := creator.Prepare("DELETE FROM blocks WHERE blk_hash = ?")
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if err != nil {
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return err
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}
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deleteTransfers, err := creator.Prepare("DELETE FROM transfers WHERE blk_hash = ?")
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if err != nil {
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return err
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}
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for _, h := range headers {
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_, err = delete.Exec(h.Hash)
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if err != nil {
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return err
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}
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_, err = deleteTransfers.Exec(h.Hash)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (db *Database) InsertBlock(chainID uint64, account common.Address, blockNumber *big.Int, blockHash common.Hash) error {
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var (
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tx *sql.Tx
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)
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tx, err := db.client.Begin()
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if err != nil {
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return err
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}
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defer func() {
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if err == nil {
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err = tx.Commit()
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return
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}
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_ = tx.Rollback()
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}()
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insert, err := tx.Prepare("INSERT OR IGNORE INTO blocks(network_id, address, blk_number, blk_hash, loaded) 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(chainID, account, (*bigint.SQLBigInt)(blockNumber), blockHash, true)
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return err
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}
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func insertBlocksWithTransactions(chainID uint64, creator statementCreator, account common.Address, headers []*DBHeader) error {
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insert, err := creator.Prepare("INSERT OR IGNORE INTO blocks(network_id, address, blk_number, blk_hash, loaded) VALUES (?, ?, ?, ?, ?)")
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if err != nil {
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return err
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}
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updateTx, err := creator.Prepare(`UPDATE transfers
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SET log = ?
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WHERE network_id = ? AND address = ? AND hash = ?`)
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if err != nil {
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return err
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}
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insertTx, err := creator.Prepare(`INSERT OR IGNORE
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INTO transfers (network_id, address, sender, hash, blk_number, blk_hash, type, timestamp, log, loaded, multi_transaction_id)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, 0, ?)`)
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if err != nil {
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return err
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}
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for _, header := range headers {
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_, err = insert.Exec(chainID, account, (*bigint.SQLBigInt)(header.Number), header.Hash, header.Loaded)
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if err != nil {
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return err
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}
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if len(header.Erc20Transfers) > 0 {
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for _, transfer := range header.Erc20Transfers {
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res, err := updateTx.Exec(&JSONBlob{transfer.Log}, chainID, account, transfer.ID)
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if err != nil {
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return err
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}
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affected, err := res.RowsAffected()
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if err != nil {
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return err
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}
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if affected > 0 {
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continue
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}
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_, err = insertTx.Exec(chainID, account, account, transfer.ID, (*bigint.SQLBigInt)(header.Number), header.Hash, erc20Transfer, transfer.Timestamp, &JSONBlob{transfer.Log}, transfer.MultiTransactionID)
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if err != nil {
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log.Error("error saving erc20transfer", "err", err)
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return err
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}
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}
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}
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}
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return nil
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}
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func updateOrInsertTransfers(chainID uint64, creator statementCreator, transfers []Transfer) error {
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update, err := creator.Prepare(`UPDATE transfers
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SET tx = ?, sender = ?, receipt = ?, timestamp = ?, loaded = 1, base_gas_fee = ?
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WHERE address =? AND hash = ?`)
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if err != nil {
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return err
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}
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insert, err := creator.Prepare(`INSERT OR IGNORE INTO transfers
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(network_id, hash, blk_hash, blk_number, timestamp, address, tx, sender, receipt, log, type, loaded, base_gas_fee, multi_transaction_id)
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VALUES
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(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1, ?, ?)`)
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if err != nil {
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return err
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}
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for _, t := range transfers {
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res, err := update.Exec(&JSONBlob{t.Transaction}, t.From, &JSONBlob{t.Receipt}, t.Timestamp, t.BaseGasFees, t.Address, t.ID)
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if err != nil {
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return err
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}
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affected, err := res.RowsAffected()
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if err != nil {
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return err
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}
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if affected > 0 {
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continue
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}
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_, err = insert.Exec(chainID, t.ID, t.BlockHash, (*bigint.SQLBigInt)(t.BlockNumber), t.Timestamp, t.Address, &JSONBlob{t.Transaction}, t.From, &JSONBlob{t.Receipt}, &JSONBlob{t.Log}, t.Type, t.BaseGasFees, t.MultiTransactionID)
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if err != nil {
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log.Error("can't save transfer", "b-hash", t.BlockHash, "b-n", t.BlockNumber, "a", t.Address, "h", t.ID)
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return err
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}
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}
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return nil
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}
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// markBlocksAsLoaded(tx, address, chainID, blocks)
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func markBlocksAsLoaded(chainID uint64, creator statementCreator, address common.Address, blocks []*big.Int) error {
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update, err := creator.Prepare("UPDATE blocks SET loaded=? WHERE address=? AND blk_number=? AND network_id=?")
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if err != nil {
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return err
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}
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for _, block := range blocks {
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_, err := update.Exec(true, address, (*bigint.SQLBigInt)(block), chainID)
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if err != nil {
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return err
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}
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}
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return nil
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}
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