mirror of
https://github.com/ethereum/go-ethereum.git
synced 2026-06-23 07:04:35 +00:00
71 lines
2.1 KiB
Go
71 lines
2.1 KiB
Go
package main
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import (
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"context"
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"log"
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"math/big"
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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/ethereum/go-ethereum/ethclient"
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)
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// This helper adds a NEW admin to the whitelist precompile.
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// It uses mode = 2 in the precompile:
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//
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// mode = 2: add new admin (admin only, target address required)
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//
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// The caller must be an existing admin (the hard-coded admin key below).
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// The new admin in this example is node2's miner address, so node2 can also
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// manage the whitelist.
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func main() {
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// Existing admin private key (same as used in whitelist_tx.go)
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privHex := "PRIVATE_KEY"
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priv, err := crypto.HexToECDSA(privHex)
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if err != nil {
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log.Fatalf("Failed to parse admin key: %v", err)
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}
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adminAddr := crypto.PubkeyToAddress(priv.PublicKey)
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// New admin address to add (example: node2 miner address)
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newAdmin := common.HexToAddress("0xab52b2c71f61cd9447a932c0cb55d1752571dab8")
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client, err := ethclient.Dial("http://localhost:8545")
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if err != nil {
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log.Fatalf("Failed to connect to node: %v", err)
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}
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defer client.Close()
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// Prepare input: mode=2, current admin address, new admin address
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input := []byte{2}
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input = append(input, adminAddr.Bytes()...)
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input = append(input, newAdmin.Bytes()...)
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nonce, err := client.PendingNonceAt(context.Background(), adminAddr)
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if err != nil {
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log.Fatalf("Failed to get nonce: %v", err)
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}
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gasPrice, err := client.SuggestGasPrice(context.Background())
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if err != nil {
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log.Fatalf("Failed to get gas price: %v", err)
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}
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to := common.BytesToAddress([]byte{0x01, 0x00}) // address of whitelist precompile
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value := big.NewInt(0)
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var gasLimit uint64 = 100000
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tx := types.NewTransaction(nonce, to, value, gasLimit, gasPrice, input)
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chainID := big.NewInt(1234)
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signedTx, err := types.SignTx(tx, types.NewEIP155Signer(chainID), priv)
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if err != nil {
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log.Fatalf("Failed to sign tx: %v", err)
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}
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if err := client.SendTransaction(context.Background(), signedTx); err != nil {
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log.Fatalf("Failed to send tx: %v", err)
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}
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log.Printf("Add-admin transaction sent: %s (new admin: %s)", signedTx.Hash().Hex(), newAdmin.Hex())
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}
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