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42 lines
No EOL
1.3 KiB
Go
42 lines
No EOL
1.3 KiB
Go
package contracts
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import (
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"github.com/ethereum/go-ethereum/accounts"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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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/ethereum/go-ethereum/params"
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"math/big"
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)
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const (
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HexSignMethod = "2fb1b25f"
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)
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// Send tx sign for block number to smart contract blockSigner.
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func CreateTransactionSign(chainConfig *params.ChainConfig, pool *core.TxPool, manager *accounts.Manager, block *types.Block) {
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// Find active account.
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account := accounts.Account{}
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var wallet accounts.Wallet
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if wallets := manager.Wallets(); len(wallets) > 0 {
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wallet = wallets[0]
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if accts := wallets[0].Accounts(); len(accts) > 0 {
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account = accts[0]
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}
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}
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// Create and send tx to smart contract for sign validate block.
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blockHex := common.LeftPadBytes(block.Number().Bytes(), 32)
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data := common.Hex2Bytes(HexSignMethod)
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inputData := append(data, blockHex...)
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nonce := pool.State().GetNonce(account.Address)
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tx := types.NewTransaction(nonce, common.HexToAddress(common.BlockSigners), big.NewInt(0), 100000, big.NewInt(0), inputData)
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txSigned, err := wallet.SignTx(account, tx, chainConfig.ChainId)
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if err != nil {
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log.Error("Fail to create tx sign", "error", err)
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return
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}
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// Add tx signed to local tx pool.
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pool.AddLocal(txSigned) |