first commit

This commit is contained in:
lzx
2025-10-16 18:54:27 +08:00
commit a0689dbb09
15 changed files with 3351 additions and 0 deletions

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package blockchain
import (
"fmt"
"sync"
)
type IChainServer interface {
AddAddress(address string, msg any)
RemoveAddress(address string)
Listen(symbol string, ch chan any)
Transfer(symbol string, msg any) error
Stop()
}
type BlockChainServer struct {
mu sync.Mutex
chains map[string]IChainServer // "ETH", "TRON", "BTC"
}
func NewBlockChainServer() *BlockChainServer {
return &BlockChainServer{
chains: make(map[string]IChainServer),
}
}
func (b *BlockChainServer) RegisterChain(name string, chain IChainServer) {
b.mu.Lock()
defer b.mu.Unlock()
b.chains[name] = chain
}
func (b *BlockChainServer) AddAddress(chain, address string, msg any) {
if srv, ok := b.chains[chain]; ok {
srv.AddAddress(address, msg)
fmt.Printf("✅ 添加监听地址: chain=%s, address=%s\n", chain, address)
} else {
fmt.Printf("⚠️ 链未注册: %s\n", chain)
}
}
func (b *BlockChainServer) RemoveAddress(chain, address string) {
if srv, ok := b.chains[chain]; ok {
srv.RemoveAddress(address)
fmt.Printf("🗑️ 移除监听地址: chain=%s, address=%s\n", chain, address)
} else {
fmt.Printf("⚠️ 链未注册: %s\n", chain)
}
}
func (b *BlockChainServer) Listen(chain, symbol string, ch chan any) error {
if srv, ok := b.chains[chain]; ok {
go func() {
srv.Listen(symbol, ch)
}()
return nil
}
return fmt.Errorf("链未注册: %s", chain)
}
func (b *BlockChainServer) Transfer(chain, symbol string, msg any) error {
if srv, ok := b.chains[chain]; ok {
fmt.Printf("💸 %s-%s发起转账: %+v\n", chain, symbol, msg)
return srv.Transfer(symbol, msg)
}
return fmt.Errorf("链未注册: %s", chain)
}
func (b *BlockChainServer) Stop(chain string) {
if srv, ok := b.chains[chain]; ok {
fmt.Printf("💸 关闭服务: %+v\n", chain)
srv.Stop()
}
fmt.Printf("链未注册: %s", chain)
}

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@@ -0,0 +1,690 @@
package eth
import (
"context"
"fmt"
"log"
"m2pool-payment/internal/db"
message "m2pool-payment/internal/msg"
"m2pool-payment/internal/utils"
"math/big"
"strings"
"sync"
"time"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
)
const erc20ABI = `
[
{
"constant": true,
"inputs": [{"name": "_owner", "type": "address"}],
"name": "balanceOf",
"outputs": [{"name": "balance", "type": "uint256"}],
"type": "function"
},
{
"constant": false,
"inputs": [
{"name": "_to", "type": "address"},
{"name": "_value", "type": "uint256"}
],
"name": "transfer",
"outputs": [{"name": "", "type": "bool"}],
"type": "function"
},
{
"anonymous": false,
"inputs": [
{"indexed": true, "name": "from", "type": "address"},
{"indexed": true, "name": "to", "type": "address"},
{"indexed": false,"name": "value","type": "uint256"}
],
"name": "Transfer",
"type": "event"
}
]
`
type ETHNode struct {
decodeKey string // 私钥解密密钥,从程序启动命令行获得
NetId *big.Int // 网络ID主网为1其他ID可通过rpc.NetworkID方法获取
Config message.ETHConfig // 配置文件
WsClient *ethclient.Client
RpcClient *ethclient.Client
Db db.MySQLPool
mu sync.Mutex
ListenAddresses sync.Map // key:"钱包地址", value:bool
UnConfirmTxs map[string]message.Tx_msg // 待交易地址池key:"交易hash", value: message.Tx
USDT *USDT // ETH相关
RmqMsgs map[string][]any // 根据地址查找出该地址涉及的消息,消息需要断言(topupreq_msg, payreq_msg, withdrawreq_msg)
Ctx context.Context
Cancel context.CancelFunc
}
type USDT struct {
Address common.Address // USDT合约地址
ABI abi.ABI // USDT ABI
TransferSig common.Hash // USDT函数签名
LogsChan chan types.Log
}
func NewETHNode(cfg message.ETHConfig, decodeKey string) (*ETHNode, error) {
// 连入ETH节点的ws
ws_client, err := ethclient.Dial(cfg.WsURL)
if err != nil {
return nil, fmt.Errorf("failed to connect to Ethereum node: %w", err)
}
// 连入ETH节点的rpc
rpc_client, err := ethclient.Dial(cfg.RpcURL)
if err != nil {
return nil, fmt.Errorf("failed to connect to Ethereum node rpc: %w", err)
}
// 创建可取消的 context
ctx, cancel := context.WithCancel(context.Background())
// 获得net_id
netId, err := rpc_client.NetworkID(ctx)
if err != nil {
cancel()
return nil, fmt.Errorf("failed to connect to get node net_id: %w", err)
}
// 构造USDT合约相关
usdt := &USDT{}
usdt.Address = common.HexToAddress("0xdAC17F958D2ee523a2206206994597C13D831ec7") // 解析合约地址
usdt.ABI = func() abi.ABI { a, _ := abi.JSON(strings.NewReader(erc20ABI)); return a }() // 解析合约ABI
usdt.TransferSig = crypto.Keccak256Hash([]byte("Transfer(address,address,uint256)")) // 解析合约transfer函数签名
usdt.LogsChan = make(chan types.Log, 1000) // 初始化合约日志通道
// 初始化数据库
dbConn, err := db.NewMySQLPool(cfg.DbConfig)
if err != nil {
cancel()
return nil, fmt.Errorf("mysql connect error: %w", err)
}
return &ETHNode{
decodeKey: decodeKey,
NetId: netId,
Config: cfg,
WsClient: ws_client,
RpcClient: rpc_client,
Db: *dbConn,
ListenAddresses: sync.Map{},
UnConfirmTxs: make(map[string]message.Tx_msg),
USDT: usdt,
RmqMsgs: make(map[string][]any),
Ctx: ctx,
Cancel: cancel,
}, nil
}
// ============================ 抽象接口 ============================
func (e *ETHNode) AddAddress(address string, rmq_msg any) {
// 统一转换为小写
address = strings.ToLower(address)
log.Printf("新增钱包监听消息:%v", rmq_msg)
e.ListenAddresses.Store(address, true)
e.mu.Lock()
if len(e.RmqMsgs[address]) == 0 {
e.RmqMsgs[address] = []any{rmq_msg}
} else {
e.RmqMsgs[address] = append(e.RmqMsgs[address], rmq_msg)
}
e.mu.Unlock()
}
func (e *ETHNode) RemoveAddress(address string) {
// 统一转换为小写
address = strings.ToLower(address)
e.ListenAddresses.Delete(address)
e.mu.Lock()
delete(e.RmqMsgs, address)
e.mu.Unlock()
}
func (e *ETHNode) Listen(symbol string, ch chan any) {
// 启动新区块监听(用于触发交易确认检查)
go e.listenNewBlocks("USDT", ch)
switch symbol {
case "USDT":
// 启动 USDT Transfer 事件监听
err := e.listen_usdt(ch)
if err != nil {
log.Fatal("Listen USDT Transactions Error:", err)
}
}
}
func (e *ETHNode) Transfer(symbol string, msg any) error {
switch symbol {
case "USDT":
err := e.usdt_transfer(msg)
if err != nil {
return fmt.Errorf("%s transfer ERROR: %w", symbol, err)
}
default:
return fmt.Errorf("unsupported symbol: %s", symbol)
}
return nil
}
// ============================ rpc节点方法 ============================
func (e *ETHNode) getETHBlance(address string) (*big.Int, error) {
account := common.HexToAddress(address)
ctx := context.Background()
balance, err := e.RpcClient.BalanceAt(ctx, account, nil) // nil表示最新高度
if err != nil {
return nil, fmt.Errorf("failed to get eth balance:%w", err)
}
// fBalance := new(big.Float).SetInt(balance)
// ethValue := new(big.Float).Quo(fBalance, big.NewFloat(1e18)) // 转 ETH
// value, _ := ethValue.Float64() // 转 float64
return balance, nil
}
func (e *ETHNode) getUSDTBalance(address string) (float64, error) {
// 统一转换为小写common.HexToAddress会自动处理但为了一致性显式转换
address = strings.ToLower(address)
contractAddress := e.USDT.Address
accountAddress := common.HexToAddress(address)
data, err := e.USDT.ABI.Pack("balanceOf", accountAddress)
if err != nil {
return 0, fmt.Errorf("failed to pack balanceOf data: %w", err)
}
msg := ethereum.CallMsg{
To: &contractAddress,
Data: data,
}
// 使用 CallContract 方法查询合约余额
res, err := e.RpcClient.CallContract(e.Ctx, msg, nil)
if err != nil {
return 0, fmt.Errorf("failed to get contract balance: %w", err)
}
// 解析返回的字节为 *big.Int
outputs, err := e.USDT.ABI.Unpack("balanceOf", res)
if err != nil || len(outputs) == 0 {
return 0, fmt.Errorf("failed to unpack balanceOf result: %w", err)
}
balance, ok := outputs[0].(*big.Int)
if !ok {
return 0, fmt.Errorf("unexpected type for balanceOf result")
}
bal := utils.BigIntUSDTToFloat64(balance)
return bal, nil
}
func (e *ETHNode) getBlockHeight() (uint64, error) {
header, err := e.RpcClient.HeaderByNumber(e.Ctx, nil)
if err != nil {
return 0, fmt.Errorf("failed to get latest block header: %w", err)
}
return header.Number.Uint64(), nil
}
func (e *ETHNode) getSuggestGasPrice() (*big.Int, error) {
ctx := context.Background()
gasPrice, err := e.RpcClient.SuggestGasPrice(ctx)
if err != nil {
return nil, fmt.Errorf("get suggest-gasprice error:%v", err)
}
return gasPrice, nil
}
// ============================ 业务方法 ============================
func (e *ETHNode) listen_usdt(ch chan any) error {
fmt.Println("🔍 ETH 开始监听 USDT Transfer 事件...")
// 过滤掉非USDT数据
query := ethereum.FilterQuery{
Addresses: []common.Address{e.USDT.Address},
}
// 负责重连
for {
// 订阅日志
sub, err := e.WsClient.SubscribeFilterLogs(e.Ctx, query, e.USDT.LogsChan)
if err != nil {
fmt.Println("❌ 订阅失败, 5秒后重试:", err)
time.Sleep(5 * time.Second)
continue
}
fmt.Println("✅ 订阅成功")
// 处理事件
for {
select {
case err := <-sub.Err():
fmt.Println("⚠️ 订阅异常,准备重连:", err)
sub.Unsubscribe() // 清理旧订阅
time.Sleep(3 * time.Second)
goto reconnect // 跳出内层循环,回到外层重新订阅
case vLog := <-e.USDT.LogsChan:
e.handleUSDTEvent(vLog, ch) // 事件解析 + 分类传递链消息的通道是vLog而非ch且一次只传递一笔交易
case <-e.Ctx.Done():
fmt.Println("🛑 收到停止信号,退出监听")
sub.Unsubscribe()
return e.Ctx.Err()
}
}
reconnect:
}
}
func (e *ETHNode) handleUSDTEvent(vLog types.Log, ch chan any) {
from := common.HexToAddress(vLog.Topics[1].Hex())
to := common.HexToAddress(vLog.Topics[2].Hex())
height := vLog.BlockNumber
fromAddr := strings.ToLower(from.Hex())
toAddr := strings.ToLower(to.Hex())
var transferEvent struct{ Value *big.Int }
if err := e.USDT.ABI.UnpackIntoInterface(&transferEvent, "Transfer", vLog.Data); err != nil {
fmt.Println("ABI 解析错误:", err)
return
}
// 先验证toAddr是否在监听列表里面
_, ok := e.ListenAddresses.Load(toAddr)
if !ok {
return
}
tx_hash := vLog.TxHash.Hex()
tx, tx_ok := e.UnConfirmTxs[tx_hash]
if tx_ok {
// 【支付/提现】待确认交易中存在该交易Hash说明是我们主动发起的交易
// 直接走确认流程,不发送待确认消息
// log.Printf("🔍 检测到已发起的交易: TxHash=%s, Type=%d", tx_hash, tx.TxType)
e.confirm("USDT", height, tx, ch)
} else {
// 【充值】待确认交易中不存在该交易hash说明是外部转账
// 添加至待确认交易中,并立即发送待确认消息
// 1,先根据to查询RmqMsgs再根据存在的rmq_msg中的相关数据存入待确认交易
value, rmq_msg_ok := e.RmqMsgs[toAddr]
var tx_type int
if rmq_msg_ok {
for _, v := range value {
_, ok := v.(message.TopupMsg_req)
if ok {
tx_type = 0
}
_, ok1 := v.(message.WithdrawMsg_req)
if ok1 {
tx_type = 1
}
_, ok2 := v.(message.PayMsg_req)
if ok2 {
tx_type = 2
}
}
}
e.UnConfirmTxs[tx_hash] = message.Tx_msg{
TxType: tx_type,
Tx: message.Tx{
From: fromAddr,
To: toAddr,
Height: height,
TxHash: tx_hash,
Symbol: "USDT",
Value: utils.BigIntUSDTToFloat64(transferEvent.Value),
Status: 2, // 待确认状态
},
}
// log.Printf("📝 待确认交易新增: TxHash=%s, Height=%d, To=%s, Type=%d", tx_hash, height, toAddr, tx_type)
// 🔔 【仅充值】立即发送待确认状态的消息(支付/提现不发送待确认消息)
if tx_type == 0 && rmq_msg_ok {
for _, v := range value {
d1, ok := v.(message.TopupMsg_req)
if ok && strings.ToLower(d1.Address) == toAddr {
pendingMsg := message.TopupMsg_resp{
Address: toAddr,
Status: 2, // 待确认状态
Chain: d1.Chain,
Symbol: d1.Symbol,
Amount: utils.BigIntUSDTToFloat64(transferEvent.Value),
TxHash: tx_hash,
}
// log.Printf("📤 发送待确认充值消息: TxHash=%s, Address=%s, Amount=%.2f",
// tx_hash, toAddr, pendingMsg.Amount)
// 异步发送,避免阻塞事件处理
go func(msg message.TopupMsg_resp) {
select {
case ch <- msg:
log.Printf("✅ 待确认充值消息已发送")
default:
log.Printf("⚠️ 通道阻塞,待确认消息发送失败")
}
}(pendingMsg)
break
}
}
}
}
}
// listenNewBlocks 监听新区块产生,触发交易确认检查
func (e *ETHNode) listenNewBlocks(symbol string, ch chan any) {
fmt.Println("🔍 开始监听新区块...")
headers := make(chan *types.Header, 10)
// 负责重连
for {
// 订阅新区块头
sub, err := e.WsClient.SubscribeNewHead(e.Ctx, headers)
if err != nil {
fmt.Println("❌ 订阅新区块失败, 5秒后重试:", err)
time.Sleep(5 * time.Second)
continue
}
fmt.Println("✅ 新区块订阅成功")
// 处理新区块
for {
select {
case err := <-sub.Err():
fmt.Println("⚠️ 新区块订阅异常,准备重连:", err)
sub.Unsubscribe()
time.Sleep(3 * time.Second)
goto reconnect
case header := <-headers:
// 每当有新区块,检查待确认交易
currentHeight := header.Number.Uint64()
// log.Printf("🆕 新区块: %d", currentHeight)
// 检查是否有待确认交易
e.mu.Lock()
hasPendingTx := len(e.UnConfirmTxs) > 0
e.mu.Unlock()
if hasPendingTx {
e.checkAndConfirmTransactions(symbol, currentHeight, ch)
}
case <-e.Ctx.Done():
fmt.Println("🛑 停止新区块监听")
sub.Unsubscribe()
return
}
}
reconnect:
}
}
// checkAndConfirmTransactions 检查并确认达到确认高度的交易
func (e *ETHNode) checkAndConfirmTransactions(symbol string, currentHeight uint64, ch chan any) {
e.mu.Lock()
needConfirmList := []message.Tx_msg{}
for _, tx := range e.UnConfirmTxs {
// 检查是否达到确认高度
if currentHeight >= tx.Tx.Height+e.Config.ConfirmHeight {
log.Printf("当前高度=%d, 交易高度=%d", currentHeight, tx.Tx.Height)
// log.Printf("✅ 交易达到确认高度: TxHash=%s, 当前高度=%d, 交易高度=%d, 需确认=%d块",
// txHash, currentHeight, tx.Tx.Height, e.Config.ConfirmHeight)
needConfirmList = append(needConfirmList, tx)
}
}
e.mu.Unlock()
// 批量触发确认(在锁外执行,避免长时间持锁)
for _, tx := range needConfirmList {
e.confirm(symbol, currentHeight, tx, ch)
}
}
func (e *ETHNode) confirm(symbol string, height uint64, tx message.Tx_msg, ch chan any) {
switch symbol {
case "USDT":
e.confirm_usdt(tx, height, ch)
}
}
func (e *ETHNode) confirm_usdt(tx message.Tx_msg, height uint64, ch chan any) {
// 先从 UnConfirmTxs 中读取
e.mu.Lock()
unConfirmTx, ok := e.UnConfirmTxs[tx.Tx.TxHash]
e.mu.Unlock()
if !ok {
return
}
if height < unConfirmTx.Tx.Height {
return
}
// 超过确认高度,查询交易数据
txHash := common.HexToHash(tx.Tx.TxHash)
receipt, err := e.RpcClient.TransactionReceipt(e.Ctx, txHash)
var status int
if err != nil {
log.Println("⚠️ 查询交易收据失败 TxHash=", txHash, err)
status = 0
} else if receipt.Status == types.ReceiptStatusSuccessful {
status = 1
} else {
status = 0
}
tx.Tx.Status = status
// 通过通道发送,异步写避免阻塞
go func(tx message.Tx_msg) {
e.mu.Lock()
var result_msg any
var matchIndex = -1 // 记录匹配的索引
rmq_msg := e.RmqMsgs[tx.Tx.To]
for i, v := range rmq_msg {
// 处理充值
d1, ok := v.(message.TopupMsg_req)
if ok {
// 统一转小写比较
if strings.ToLower(d1.Address) == tx.Tx.To {
result_msg = message.TopupMsg_resp{
Address: tx.Tx.To,
Status: tx.Tx.Status,
Chain: d1.Chain,
Symbol: d1.Symbol,
Amount: tx.Tx.Value,
TxHash: tx.Tx.TxHash,
}
// 充值消息不删除,可能会有多笔充值到同一地址
break
}
}
// 处理提现
d2, ok1 := v.(message.WithdrawMsg_req)
if ok1 {
// 统一转小写比较
if strings.ToLower(d2.FromAddress) == tx.Tx.From &&
strings.ToLower(d2.ToAddress) == tx.Tx.To &&
d2.Amount == tx.Tx.Value {
result_msg = message.WithdrawMsg_resp{
QueueId: d2.QueueId,
Status: tx.Tx.Status,
Amount: tx.Tx.Value,
Chain: d2.Chain,
Symbol: d2.Symbol,
TxHash: tx.Tx.TxHash,
}
matchIndex = i // 记录索引,稍后删除
break
}
}
// 处理支付
d3, ok2 := v.(message.PayMsg_req)
if ok2 {
// 统一转小写比较
if strings.ToLower(d3.FromAddress) == tx.Tx.From &&
strings.ToLower(d3.ToAddress) == tx.Tx.To &&
d3.Amount == tx.Tx.Value {
result_msg = message.PayMsg_resp{
QueueId: d3.QueueId,
Status: tx.Tx.Status,
Amount: tx.Tx.Value,
Chain: d3.Chain,
Symbol: d3.Symbol,
OrderId: d3.OrderId,
TxHash: tx.Tx.TxHash,
}
matchIndex = i // 记录索引,稍后删除
break
}
}
}
// 循环结束后,统一删除匹配的消息(提现和支付需要删除)
if matchIndex >= 0 {
e.RmqMsgs[tx.Tx.To] = utils.Slice_delete(e.RmqMsgs[tx.Tx.To], matchIndex)
}
e.mu.Unlock()
select {
case ch <- result_msg:
default:
fmt.Println("⚠️ confirm通道阻塞消息丢失:", txHash)
}
}(tx)
// 删除已确认交易
e.mu.Lock()
delete(e.UnConfirmTxs, tx.Tx.TxHash)
e.mu.Unlock()
}
func (e *ETHNode) decodePrivatekey(address string) string {
// 统一转换为小写
address = strings.ToLower(address)
// 查询加密后的私钥
querySql := "SELECT `private_key` FROM eth_balance WHERE address = ? LIMIT 1;"
log.Println("查询私钥的钱包地址:", address)
var encryptedKey string
err := e.Db.QueryRow(querySql, address).Scan(&encryptedKey)
if err != nil {
log.Println("❌ 查询私钥失败:", err)
return ""
}
// 使用key解密
privateKey := encryptedKey // 实际使用时替换成具体的解密代码
// fmt.Println(privateKey)
return privateKey
}
func (e *ETHNode) usdt_transfer(msg any) error {
var user_from, final_from, to string
var amount float64
var tx_type int
now_height, err := e.getBlockHeight()
if err != nil {
return fmt.Errorf("get lastest height error: %v", err)
}
// ---------------------------------------------------------------------------------------------
// 断言,确定本次转账是哪个类型
// 支付操作
v, ok := msg.(message.PayMsg_req)
if ok {
e.AddAddress(v.ToAddress, v) // 存入该笔msgAddAddress内部会转小写
// 统一转换为小写
user_from, final_from, to, amount = strings.ToLower(v.FromAddress), strings.ToLower(v.FromAddress), strings.ToLower(v.ToAddress), v.Amount
tx_type = 2
}
// 提现操作
k, ok1 := msg.(message.WithdrawMsg_req)
if ok1 {
e.AddAddress(k.ToAddress, k) // 存入该笔msgAddAddress内部会转小写
// 统一转换为小写
user_from, final_from, to, amount = strings.ToLower(k.FromAddress), strings.ToLower(k.FromAddress), strings.ToLower(k.ToAddress), k.Amount
tx_type = 1
}
// ---------------------------------------------------------------------------------------------
// 1,校验钱包余额
balance, err := e.getUSDTBalance(user_from)
log.Printf("检测Transfer钱包=%s余额=%f", user_from, balance)
if err != nil {
return fmt.Errorf("failed to get balance: %w", err)
}
// 2,钱包余额不足,调用归集钱包转账
if balance < amount {
final_from = "归集钱包"
}
// 3,通过from地址前往数据库查找出对应加密后的私钥并解密真实的私钥
originalKey := e.decodePrivatekey(final_from)
if originalKey == "" {
return fmt.Errorf("failed to query privatekey")
}
fmt.Println(originalKey)
privateKey, err := crypto.HexToECDSA(originalKey)
if err != nil {
return fmt.Errorf("failed to parse private key: %w", err)
}
// 4, 获得nonce
nonce, err := e.RpcClient.PendingNonceAt(e.Ctx, common.HexToAddress(final_from))
if err != nil {
return fmt.Errorf("failed to get nonce: %w", err)
}
// 5, 构造交易ERC20 transfer 调用)
amountBigInt := utils.Float64ToBigIntUSDT(amount)
data, err := e.USDT.ABI.Pack("transfer", common.HexToAddress(to), amountBigInt) // 打包 transfer(address,uint256) 方法调用
if err != nil {
return fmt.Errorf("failed to pack transfer data: %w", err)
}
gasPrice, err := e.getSuggestGasPrice() // 获得当前建议gasPrice
if err != nil {
return fmt.Errorf("get suggest-gasprice error:%v", err)
}
eth_balance, err := e.getETHBlance(final_from) // 获得钱包eth余额
if err != nil {
return fmt.Errorf("%w", err)
}
var gasLimit uint64 = 100000
gasLimit_b := new(big.Int).SetUint64(gasLimit)
gas := new(big.Int).Mul(gasLimit_b, gasPrice)
// 判断钱包eth是否支持本次交易gas费用
if eth_balance.Cmp(gas) == -1 {
return fmt.Errorf("address=%s balance less than gas=%v(wei)", final_from, eth_balance)
}
// 构造发送到 USDT 合约地址的交易
tx := types.NewTransaction(
nonce,
e.USDT.Address, // 发送到USDT合约地址
big.NewInt(0), // value为0ERC20转账不需要ETH
gasLimit, // GasLimit设置为100000ERC20转账需要更多gas
gasPrice, // GasPrice: 20 Gwei
data, // 附加数据transfer方法调用
)
// 6, 签名交易并获得txHash
signedTx, err := types.SignTx(tx, types.NewEIP155Signer(e.NetId), privateKey)
txHash := signedTx.Hash().Hex() // 通过签名信息解析出交易hash
if err != nil {
return fmt.Errorf("failed to sign transaction: %w", err)
}
// 7, 发送交易
err = e.RpcClient.SendTransaction(e.Ctx, signedTx)
if err != nil {
return fmt.Errorf("failed to send transaction: %w", err)
}
// 8, 构造交易消息
tx_msg := message.Tx_msg{
TxType: tx_type,
Tx: message.Tx{
From: final_from,
To: to,
Height: now_height,
TxHash: txHash,
Symbol: "USDT",
Value: amount,
Status: 2,
},
}
// 9, 将构造的交易消息存入待确认交易中
e.UnConfirmTxs[txHash] = tx_msg
return nil
}
func (e *ETHNode) Stop() {
e.Cancel()
}

12
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package crypto
import (
"crypto/sha256"
"encoding/hex"
)
func Sha256Hash(key string) []byte {
bytes, _ := hex.DecodeString(key)
sha256_hash := sha256.Sum256(bytes)
return sha256_hash[:]
}

70
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package db
import (
"database/sql"
"fmt"
message "m2pool-payment/internal/msg"
_ "github.com/go-sql-driver/mysql"
)
type MySQLPool struct {
db *sql.DB
}
// NewMySQLPool 初始化连接池
func NewMySQLPool(cfg message.DbConfig) (*MySQLPool, error) {
dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local",
cfg.User, cfg.Password, cfg.Host, cfg.Port, cfg.Database)
db, err := sql.Open("mysql", dsn)
if err != nil {
return nil, err
}
// 设置连接池参数
db.SetMaxOpenConns(cfg.MaxOpenConns)
db.SetMaxIdleConns(cfg.MaxIdleConns)
db.SetConnMaxLifetime(cfg.ConnMaxLife)
// 测试连接
if err := db.Ping(); err != nil {
return nil, err
}
return &MySQLPool{db: db}, nil
}
// Exec 执行 INSERT/UPDATE/DELETE
func (p *MySQLPool) Exec(query string, args ...any) (sql.Result, error) {
return p.db.Exec(query, args...)
}
// Query 查询多行
func (p *MySQLPool) Query(query string, args ...any) (*sql.Rows, error) {
return p.db.Query(query, args...)
}
// QueryRow 查询单行
func (p *MySQLPool) QueryRow(query string, args ...any) *sql.Row {
return p.db.QueryRow(query, args...)
}
// Transaction 执行事务
func (p *MySQLPool) Transaction(fn func(tx *sql.Tx) error) error {
tx, err := p.db.Begin()
if err != nil {
return err
}
if err := fn(tx); err != nil {
_ = tx.Rollback()
return err
}
return tx.Commit()
}
// Close 关闭连接池
func (p *MySQLPool) Close() error {
return p.db.Close()
}

125
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package msg
import "time"
// 配置文件结构
type Config struct {
RMQConfig RMQConfig `json:"rmq_config"`
ETHConfig ETHConfig `json:"eth_config"`
}
type RMQConfig struct {
SubAddr string `json:"sub_addr"` // 监听地址
PayConfig QueueConfig `json:"pay"` // 支付
TopUpConfig QueueConfig `json:"topup"` // 充值
WithdrawConfig QueueConfig `json:"withdraw"` // 提现
PayRespConfig QueueConfig `json:"pay_resp"` // 支付回复
TopUpRespConfig QueueConfig `json:"topup_resp"` // 充值回复
WithdrawRespConfig QueueConfig `json:"withdraw_resp"` // 提现回复
}
type QueueConfig struct {
QueueName string `json:"queue"`
ExchangeName string `json:"exchange"`
Routing []string `json:"routing"`
}
type ETHConfig struct {
RpcURL string `json:"rpcUrl"` // rpc连接地址
WsURL string `json:"wsUrl"` // websocket连接地址
ConfirmHeight uint64 `json:"confirmHeight"` // 确认所需区块数
DbConfig DbConfig `json:"dbConfig"`
}
// Config 数据库配置
type DbConfig struct {
User string `json:"user"`
Password string `json:"password"`
Host string `json:"host"`
Port int `json:"port"`
Database string `json:"database"`
MaxOpenConns int `json:"maxOpenConns"` // 最大打开连接数
MaxIdleConns int `json:"maxIdleCoons"` // 最大空闲连接数
ConnMaxLife time.Duration `json:"connMaxLife"` // 连接最大存活时间
}
// =======================================================================
// 接收的充值消息
type TopupMsg_req struct {
Chain string `json:"chain"` // 链名称
Symbol string `json:"symbol"` // 币种
Address string `json:"address"`
Timestamp uint64 `json:"timestamp"`
Sign string `json:"sign"`
}
// 返回充值结果消息
type TopupMsg_resp struct {
Address string `json:"address"`
Status int `json:"status"`
Chain string `json:"chain"` // 链名称
Symbol string `json:"symbol"` // 币种
Amount float64 `json:"amount"`
TxHash string `json:"tx_hash"`
}
// 接收的提现消息
type WithdrawMsg_req struct {
QueueId string `json:"queue_id"`
FromAddress string `json:"from_address"` // 我们提供的地址
ToAddress string `json:"to_address"` // 用户要提现到的地址
Amount float64 `json:"amount"`
Chain string `json:"chain"` // 链名称
Symbol string `json:"symbol"` // 币种
Timestamp uint64 `json:"timestamp"`
Sign string `json:"sign"`
}
// 返回提现结果消息
type WithdrawMsg_resp struct {
QueueId string `json:"queue_id"`
Status int `json:"status"`
Amount float64 `json:"amount"`
Chain string `json:"chain"` // 链名称
Symbol string `json:"symbol"` // 币种
TxHash string `json:"tx_hash"`
}
// 接收到的支付消息
type PayMsg_req struct {
QueueId string `json:"queue_id"`
FromAddress string `json:"from_address"` // 我们提供的地址
ToAddress string `json:"to_address"` // 卖家地址
Amount float64 `json:"amount"`
Chain string `json:"chain"` // 链名称
Symbol string `json:"symbol"` // 币种
OrderId string `json:"order_id"` // 订单号
Timestamp uint64 `json:"timestamp"`
Sign string `json:"sign"`
}
// 返回支付结果消息
type PayMsg_resp struct {
QueueId string `json:"queue_id"`
Status int `json:"status"`
Amount float64 `json:"amount"`
Chain string `json:"chain"` // 链名称
Symbol string `json:"symbol"` // 币种
OrderId string `json:"order_id"` // 订单号
TxHash string `json:"tx_hash"`
}
// 节点通用消息结构
type Tx_msg struct {
TxType int `json:"tx_type"` // 转账类型0充值1提现2支付
Tx Tx `json:"tx"`
}
type Tx struct {
From string `json:"from"` // 充值/提现/支付的来源地址
To string `json:"to"` // 充值/提现/支付的目标地址
Height uint64 `json:"height"` // 区块高度
TxHash string `json:"tx_hash"` // 交易哈希
Symbol string `json:"symbol"` // 币种
Value float64 `json:"value"` // 数量,单位是币
Status int `json:"status"` // 交易状态1成功0失败, 2待确认
}

363
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# RabbitMQ 服务使用说明
## 功能概述
这个 RabbitMQ 服务实现了区块链支付系统的消息队列功能,包括:
### 消费队列(监听)
1. **充值队列 (topup)** - 监听用户充值请求
2. **提现队列 (withdraw)** - 监听用户提现请求
3. **支付队列 (pay)** - 监听用户支付请求
### 发布队列(响应)
1. **充值响应队列 (topup_resp)** - 发送充值确认结果
2. **提现响应队列 (withdraw_resp)** - 发送提现确认结果
3. **支付响应队列 (pay_resp)** - 发送支付确认结果
---
## 快速开始
### 1. 安装依赖
```bash
go get github.com/rabbitmq/amqp091-go
```
### 2. 配置文件示例 (config.json)
```json
{
"rmq_config": {
"sub_addr": "amqp://username:password@localhost:5672",
"pay": {
"queue": "pay.auto.queue",
"exchange": "pay.exchange",
"routing": ["pay.auto.routing.key"]
},
"topup": {
"queue": "pay.recharge.queue",
"exchange": "pay.exchange",
"routing": ["pay.recharge.routing.key"]
},
"withdraw": {
"queue": "pay.withdraw.queue",
"exchange": "pay.exchange",
"routing": ["pay.withdraw.routing.key"]
},
"pay_resp": {
"queue": "pay.auto.return.queue",
"exchange": "pay.exchange",
"routing": ["pay.auto.return.routing.key"]
},
"topup_resp": {
"queue": "pay.recharge.return.queue",
"exchange": "pay.exchange",
"routing": ["pay.recharge.return.routing.key"]
},
"withdraw_resp": {
"queue": "pay.withdraw.return.queue",
"exchange": "pay.exchange",
"routing": ["pay.withdraw.return.routing.key"]
}
}
}
```
### 3. 使用示例
```go
package main
import (
"log"
message "m2pool-payment/internal/msg"
rmq "m2pool-payment/internal/queue"
)
func main() {
// 加载配置
config := loadConfig() // 你的配置加载逻辑
// 创建 RabbitMQ 服务
rmqServer, err := rmq.NewRabbitMQServer(config.RMQConfig)
if err != nil {
log.Fatalf("创建 RabbitMQ 服务失败: %v", err)
}
defer rmqServer.Close()
// 设置消息处理回调
rmqServer.OnTopupMsg = func(msg message.TopupMsg_req) {
log.Printf("收到充值请求: %+v", msg)
// 处理充值逻辑...
// 添加地址监听等
}
rmqServer.OnWithdrawMsg = func(msg message.WithdrawMsg_req) {
log.Printf("收到提现请求: %+v", msg)
// 处理提现逻辑...
// 调用区块链转账
}
rmqServer.OnPayMsg = func(msg message.PayMsg_req) {
log.Printf("收到支付请求: %+v", msg)
// 处理支付逻辑...
// 调用区块链转账
}
// 启动监听
if err := rmqServer.Start(); err != nil {
log.Fatalf("启动监听失败: %v", err)
}
// 发送响应消息示例
rmqServer.PublishTopupResp(message.TopupMsg_resp{
Address: "0x123...",
Status: 1,
Chain: "ETH",
Symbol: "USDT",
Amount: 100.0,
TxHash: "0xabc...",
})
// 保持运行
select {}
}
```
---
## API 说明
### 创建服务
```go
func NewRabbitMQServer(config message.RMQConfig) (*RabbitMQServer, error)
```
创建一个新的 RabbitMQ 服务实例。
**参数:**
- `config`: RabbitMQ 配置
**返回:**
- `*RabbitMQServer`: 服务实例
- `error`: 错误信息
---
### 启动监听
```go
func (r *RabbitMQServer) Start() error
```
启动所有队列的监听topup, withdraw, pay
---
### 消息回调设置
```go
// 充值请求回调
rmqServer.OnTopupMsg = func(msg message.TopupMsg_req) {
// 处理逻辑
}
// 提现请求回调
rmqServer.OnWithdrawMsg = func(msg message.WithdrawMsg_req) {
// 处理逻辑
}
// 支付请求回调
rmqServer.OnPayMsg = func(msg message.PayMsg_req) {
// 处理逻辑
}
```
---
### 发布响应消息
```go
// 发布充值响应
func (r *RabbitMQServer) PublishTopupResp(resp message.TopupMsg_resp) error
// 发布提现响应
func (r *RabbitMQServer) PublishWithdrawResp(resp message.WithdrawMsg_resp) error
// 发布支付响应
func (r *RabbitMQServer) PublishPayResp(resp message.PayMsg_resp) error
```
---
### 关闭服务
```go
func (r *RabbitMQServer) Close() error
```
优雅关闭 RabbitMQ 连接和所有监听。
---
## 消息格式
### 充值请求 (TopupMsg_req)
```json
{
"chain": "ETH",
"symbol": "USDT",
"address": "0x123...",
"timestamp": 1234567890,
"sign": "signature_string"
}
```
### 充值响应 (TopupMsg_resp)
```json
{
"address": "0x123...",
"status": 1,
"chain": "ETH",
"symbol": "USDT",
"amount": 100.5,
"tx_hash": "0xabc..."
}
```
### 提现请求 (WithdrawMsg_req)
```json
{
"queue_id": "queue_123",
"from_address": "0x123...",
"to_address": "0x456...",
"amount": 50.0,
"chain": "ETH",
"symbol": "USDT",
"timestamp": 1234567890,
"sign": "signature_string"
}
```
### 提现响应 (WithdrawMsg_resp)
```json
{
"queue_id": "queue_123",
"status": 1,
"amount": 50.0,
"chain": "ETH",
"symbol": "USDT",
"tx_hash": "0xdef..."
}
```
### 支付请求 (PayMsg_req)
```json
{
"queue_id": "queue_456",
"from_address": "0x123...",
"to_address": "0x789...",
"amount": 200.0,
"chain": "ETH",
"symbol": "USDT",
"order_id": "order_789",
"timestamp": 1234567890,
"sign": "signature_string"
}
```
### 支付响应 (PayMsg_resp)
```json
{
"queue_id": "queue_456",
"status": 1,
"amount": 200.0,
"chain": "ETH",
"symbol": "USDT",
"order_id": "order_789",
"tx_hash": "0xghi..."
}
```
---
## 状态码说明
- `status = 0` - 失败
- `status = 1` - 成功
- `status = 2` - 待确认(仅用于链上交易)
---
## 特性
**自动重连** - 连接断开时自动重连
**消息持久化** - 消息不会丢失
**手动确认** - 处理成功后才确认消息
**并发安全** - 支持多 goroutine 并发发布
**优雅关闭** - 支持优雅关闭所有连接
**错误处理** - 完善的错误日志和重试机制
---
## 注意事项
1. **连接地址格式**: `amqp://username:password@host:port/`
2. **消息确认**: 只有处理成功的消息才会被确认,失败的消息会重新入队
3. **并发安全**: 发布消息时使用了互斥锁,可以安全地从多个 goroutine 调用
4. **重连机制**: 连接断开时会自动重连,间隔 3 秒
5. **消息持久化**: 消息和队列都是持久化的,重启后不会丢失
---
## 工作流程
```
┌─────────────┐ ┌──────────────┐ ┌─────────────┐
│ 业务系统 │ ------> │ RabbitMQ │ ------> │ 支付系统 │
│ │ 充值/ │ (消息队列) │ 消费 │ (本系统) │
│ │ 提现/ │ │ │ │
│ │ 支付 │ │ │ │
└─────────────┘ └──────────────┘ └─────────────┘
|
| 监听链上
v
┌─────────────┐
│ 区块链节点 │
│ (ETH) │
└─────────────┘
|
| 交易确认
v
┌─────────────┐ ┌──────────────┐ ┌─────────────┐
│ 业务系统 │ <------ │ RabbitMQ │ <------ │ 支付系统 │
│ │ 响应 │ (响应队列) │ 发布 │ (本系统) │
└─────────────┘ └──────────────┘ └─────────────┘
```
---
## 故障排查
### 连接失败
- 检查 RabbitMQ 服务是否运行
- 检查用户名密码是否正确
- 检查网络连接和端口(默认 5672
### 消息未被消费
- 检查队列绑定是否正确
- 检查 routing key 是否匹配
- 查看 RabbitMQ 管理界面的队列状态
### 消息重复消费
- 确保消息处理成功后调用了 Ack
- 检查是否有多个消费者实例
---
## 许可证
MIT License

344
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package rmq
import (
"context"
"encoding/json"
"fmt"
"log"
message "m2pool-payment/internal/msg"
"sync"
"time"
amqp "github.com/rabbitmq/amqp091-go"
)
// RabbitMQServer RabbitMQ 服务
type RabbitMQServer struct {
config message.RMQConfig
conn *amqp.Connection
channel *amqp.Channel
mu sync.Mutex
ctx context.Context
cancel context.CancelFunc
// 消息处理回调函数
OnTopupMsg func(message.TopupMsg_req) // 充值请求回调
OnWithdrawMsg func(message.WithdrawMsg_req) // 提现请求回调
OnPayMsg func(message.PayMsg_req) // 支付请求回调
}
// NewRabbitMQServer 创建 RabbitMQ 服务
func NewRabbitMQServer(config message.RMQConfig) (*RabbitMQServer, error) {
// 创建连接
conn, err := amqp.Dial(config.SubAddr)
if err != nil {
return nil, fmt.Errorf("failed to connect to RabbitMQ: %w", err)
}
// 创建通道
channel, err := conn.Channel()
if err != nil {
conn.Close()
return nil, fmt.Errorf("failed to open a channel: %w", err)
}
// 创建可取消的 context
ctx, cancel := context.WithCancel(context.Background())
server := &RabbitMQServer{
config: config,
conn: conn,
channel: channel,
ctx: ctx,
cancel: cancel,
}
// 初始化队列和交换机
if err := server.setupQueuesAndExchanges(); err != nil {
server.Close()
return nil, fmt.Errorf("failed to setup queues: %w", err)
}
return server, nil
}
// setupQueuesAndExchanges 设置队列和交换机
func (r *RabbitMQServer) setupQueuesAndExchanges() error {
configs := []message.QueueConfig{
r.config.PayConfig,
r.config.TopUpConfig,
r.config.WithdrawConfig,
r.config.PayRespConfig,
r.config.TopUpRespConfig,
r.config.WithdrawRespConfig,
}
for _, cfg := range configs {
// 声明交换机
err := r.channel.ExchangeDeclare(
cfg.ExchangeName, // 交换机名称
"direct", // 类型direct与现有交换机类型一致
true, // durable
false, // auto-deleted
false, // internal
false, // no-wait
nil, // arguments
)
if err != nil {
return fmt.Errorf("failed to declare exchange %s: %w", cfg.ExchangeName, err)
}
// 声明队列
_, err = r.channel.QueueDeclare(
cfg.QueueName, // 队列名称
true, // durable
false, // delete when unused
false, // exclusive
false, // no-wait
nil, // arguments
)
if err != nil {
return fmt.Errorf("failed to declare queue %s: %w", cfg.QueueName, err)
}
// 绑定队列到交换机
for _, routingKey := range cfg.Routing {
err = r.channel.QueueBind(
cfg.QueueName, // 队列名称
routingKey, // routing key
cfg.ExchangeName, // 交换机名称
false, // no-wait
nil, // arguments
)
if err != nil {
return fmt.Errorf("failed to bind queue %s to exchange %s with key %s: %w",
cfg.QueueName, cfg.ExchangeName, routingKey, err)
}
}
// log.Printf("✅ 队列配置成功: Queue=%s, Exchange=%s, RoutingKeys=%v",
// cfg.QueueName, cfg.ExchangeName, cfg.Routing)
}
return nil
}
// Start 启动监听所有队列
func (r *RabbitMQServer) Start() error {
// 启动充值消息监听
go r.consumeTopup()
// 启动提现消息监听
go r.consumeWithdraw()
// 启动支付消息监听
go r.consumePay()
// log.Println("🚀 RabbitMQ 服务启动成功,开始监听消息...")
return nil
}
// consumeTopup 消费充值消息
func (r *RabbitMQServer) consumeTopup() {
r.consumeQueue(
r.config.TopUpConfig.QueueName,
"topup",
func(body []byte) error {
var msg message.TopupMsg_req
if err := json.Unmarshal(body, &msg); err != nil {
return fmt.Errorf("failed to parse topup message: %w", err)
}
log.Printf("📥 [RMQ] 收到充值请求: Chain=%s, Symbol=%s, Address=%s",
msg.Chain, msg.Symbol, msg.Address)
if r.OnTopupMsg != nil {
r.OnTopupMsg(msg)
}
return nil
},
)
}
// consumeWithdraw 消费提现消息
func (r *RabbitMQServer) consumeWithdraw() {
r.consumeQueue(
r.config.WithdrawConfig.QueueName,
"withdraw",
func(body []byte) error {
var msg message.WithdrawMsg_req
if err := json.Unmarshal(body, &msg); err != nil {
return fmt.Errorf("failed to parse withdraw message: %w", err)
}
log.Printf("📥 [RMQ] 收到提现请求: QueueId=%s, From=%s, To=%s, Amount=%.2f %s",
msg.QueueId, msg.FromAddress, msg.ToAddress, msg.Amount, msg.Symbol)
if r.OnWithdrawMsg != nil {
r.OnWithdrawMsg(msg)
}
return nil
},
)
}
// consumePay 消费支付消息
func (r *RabbitMQServer) consumePay() {
r.consumeQueue(
r.config.PayConfig.QueueName,
"pay",
func(body []byte) error {
var msg message.PayMsg_req
if err := json.Unmarshal(body, &msg); err != nil {
return fmt.Errorf("failed to parse pay message: %w", err)
}
log.Printf("📥 [RMQ] 收到支付请求: QueueId=%s, OrderId=%s, From=%s, To=%s, Amount=%.2f %s",
msg.QueueId, msg.OrderId, msg.FromAddress, msg.ToAddress, msg.Amount, msg.Symbol)
if r.OnPayMsg != nil {
r.OnPayMsg(msg)
}
return nil
},
)
}
// consumeQueue 通用队列消费方法
func (r *RabbitMQServer) consumeQueue(queueName, msgType string, handler func([]byte) error) {
for {
select {
case <-r.ctx.Done():
// log.Printf("🛑 停止监听队列: %s", queueName)
return
default:
msgs, err := r.channel.Consume(
queueName, // 队列名称
"", // consumer tag
false, // auto-ack (设置为false手动确认)
false, // exclusive
false, // no-local
false, // no-wait
nil, // args
)
if err != nil {
// log.Printf("❌ 消费队列 %s 失败: %v, 3秒后重试...", queueName, err)
time.Sleep(3 * time.Second)
continue
}
// log.Printf("✅ 开始监听队列: %s (%s)", queueName, msgType)
for msg := range msgs {
err := handler(msg.Body)
if err != nil {
// log.Printf("⚠️ 处理 %s 消息失败: %v", msgType, err)
// 消息处理失败,不确认,让消息重新入队
msg.Nack(false, true)
} else {
// 消息处理成功,确认消息
msg.Ack(false)
}
}
// 如果 channel 关闭,等待后重连
// log.Printf("⚠️ 队列 %s 连接断开3秒后重连...", queueName)
time.Sleep(3 * time.Second)
}
}
}
// PublishTopupResp 发布充值响应
func (r *RabbitMQServer) PublishTopupResp(resp message.TopupMsg_resp) error {
return r.publishMessage(
r.config.TopUpRespConfig,
resp,
fmt.Sprintf("充值响应: Address=%s, Status=%d, TxHash=%s",
resp.Address, resp.Status, resp.TxHash),
)
}
// PublishWithdrawResp 发布提现响应
func (r *RabbitMQServer) PublishWithdrawResp(resp message.WithdrawMsg_resp) error {
return r.publishMessage(
r.config.WithdrawRespConfig,
resp,
fmt.Sprintf("提现响应: QueueId=%s, Status=%d, TxHash=%s",
resp.QueueId, resp.Status, resp.TxHash),
)
}
// PublishPayResp 发布支付响应
func (r *RabbitMQServer) PublishPayResp(resp message.PayMsg_resp) error {
return r.publishMessage(
r.config.PayRespConfig,
resp,
fmt.Sprintf("支付响应: QueueId=%s, OrderId=%s, Status=%d, TxHash=%s",
resp.QueueId, resp.OrderId, resp.Status, resp.TxHash),
)
}
// publishMessage 通用消息发布方法
func (r *RabbitMQServer) publishMessage(config message.QueueConfig, msg interface{}, logMsg string) error {
r.mu.Lock()
defer r.mu.Unlock()
// 序列化消息
body, err := json.Marshal(msg)
if err != nil {
return fmt.Errorf("failed to marshal message: %w", err)
}
// 使用第一个 routing key如果有多个
routingKey := ""
if len(config.Routing) > 0 {
routingKey = config.Routing[0]
}
// 发布消息
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
err = r.channel.PublishWithContext(
ctx,
config.ExchangeName, // 交换机
routingKey, // routing key
false, // mandatory
false, // immediate
amqp.Publishing{
ContentType: "application/json",
Body: body,
DeliveryMode: amqp.Persistent, // 持久化消息
Timestamp: time.Now(),
},
)
if err != nil {
return fmt.Errorf("failed to publish message: %w", err)
}
log.Printf("📤 [RMQ] 发送%s", logMsg)
return nil
}
// Close 关闭连接
func (r *RabbitMQServer) Close() error {
// log.Println("🛑 正在关闭 RabbitMQ 服务...")
r.cancel() // 取消所有 goroutine
if r.channel != nil {
if err := r.channel.Close(); err != nil {
// log.Printf("⚠️ 关闭 channel 失败: %v", err)
}
}
if r.conn != nil {
if err := r.conn.Close(); err != nil {
// log.Printf("⚠️ 关闭连接失败: %v", err)
}
}
// log.Println("✅ RabbitMQ 服务已关闭")
return nil
}
// IsConnected 检查连接状态
func (r *RabbitMQServer) IsConnected() bool {
return r.conn != nil && !r.conn.IsClosed()
}

296
internal/server.go Normal file
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package server
import (
"encoding/hex"
"encoding/json"
"fmt"
"log"
"m2pool-payment/internal/blockchain"
"m2pool-payment/internal/blockchain/eth"
"m2pool-payment/internal/crypto"
message "m2pool-payment/internal/msg"
rmq "m2pool-payment/internal/queue"
"os"
"os/signal"
"strings"
"syscall"
)
const MSG_KEY string = "9f3c7a12"
// 状态码常量
const (
STATUS_FAILED = 0 // 失败
STATUS_SUCCESS = 1 // 成功
STATUS_PENDING = 2 // 待确认
STATUS_VERIFY_FAILED = 3 // 验证失败
)
type ServerCtx struct {
Config message.Config
blockChainServer *blockchain.BlockChainServer
rmqServer *rmq.RabbitMQServer
}
var s_ctx ServerCtx
// verifyMessage 验证消息签名
func verifyMessage(timestamp uint64, sign string) bool {
hash_byte := crypto.Sha256Hash(fmt.Sprintf("%x", timestamp) + MSG_KEY)
hash := hex.EncodeToString(hash_byte)
return hash == sign
}
func loadConfig() {
file, err := os.ReadFile("config.json")
if err != nil {
panic(fmt.Sprintf("读取配置文件失败: %v", err))
}
err = json.Unmarshal(file, &s_ctx.Config)
if err != nil {
panic(fmt.Sprintf("解析配置文件失败: %v", err))
}
log.Printf("✅ 配置加载成功: RPC=%s, WS=%s",
s_ctx.Config.ETHConfig.RpcURL, s_ctx.Config.ETHConfig.WsURL)
}
func initBlockChainServer() {
// 初始化节点服务
node_server := blockchain.NewBlockChainServer()
// 初始化ETH节点
eth_node, err := eth.NewETHNode(s_ctx.Config.ETHConfig, "m2pool")
if err != nil {
log.Fatalf("ETH-Node Start error: %v", err)
}
// 注册ETH节点
node_server.RegisterChain("ETH", eth_node)
// 将所有注册的blockChainServer绑定至server
s_ctx.blockChainServer = node_server
log.Println("✅ 区块链服务初始化完成")
}
func initRmqServer() {
// 初始化rmq服务
rmq_server, err := rmq.NewRabbitMQServer(s_ctx.Config.RMQConfig)
if err != nil {
log.Fatalf("RabbitMQ Server Start error: %v", err)
}
// 将rmq服务绑定至server
s_ctx.rmqServer = rmq_server
log.Printf("✅ RabbitMQ服务初始化完成: %s", s_ctx.Config.RMQConfig.SubAddr)
}
func handleTopupMsg() {
s_ctx.rmqServer.OnTopupMsg = func(msg message.TopupMsg_req) {
msg.Address = strings.ToLower(msg.Address)
// 验证签名
if !verifyMessage(msg.Timestamp, msg.Sign) {
err := s_ctx.rmqServer.PublishTopupResp(message.TopupMsg_resp{
Address: msg.Address,
Status: STATUS_VERIFY_FAILED,
Chain: msg.Chain,
Symbol: msg.Symbol,
Amount: 0,
TxHash: "",
})
if err != nil {
log.Printf("❌ 发布充值失败响应失败: %v", err)
}
return
}
// 添加监听地址
s_ctx.blockChainServer.AddAddress(msg.Chain, msg.Address, msg)
}
}
func handleWithdrawMsg() {
s_ctx.rmqServer.OnWithdrawMsg = func(msg message.WithdrawMsg_req) {
msg.FromAddress = strings.ToLower(msg.FromAddress)
msg.ToAddress = strings.ToLower(msg.ToAddress)
// 验证签名
if !verifyMessage(msg.Timestamp, msg.Sign) {
err := s_ctx.rmqServer.PublishWithdrawResp(message.WithdrawMsg_resp{
QueueId: msg.QueueId,
Status: STATUS_VERIFY_FAILED,
Chain: msg.Chain,
Symbol: msg.Symbol,
Amount: 0,
TxHash: "",
})
if err != nil {
log.Printf("❌ 发布提现失败响应失败: %v", err)
}
return
}
// 执行转账
err := s_ctx.blockChainServer.Transfer(msg.Chain, msg.Symbol, msg)
if err != nil {
log.Printf("❌ 提现转账失败: %v", err)
// 发送失败响应
s_ctx.rmqServer.PublishWithdrawResp(message.WithdrawMsg_resp{
QueueId: msg.QueueId,
Status: STATUS_FAILED,
Amount: msg.Amount,
Chain: msg.Chain,
Symbol: msg.Symbol,
TxHash: "",
})
}
}
}
func handlePayMsg() {
s_ctx.rmqServer.OnPayMsg = func(msg message.PayMsg_req) {
msg.FromAddress = strings.ToLower(msg.FromAddress)
msg.ToAddress = strings.ToLower(msg.ToAddress)
// 验证签名
if !verifyMessage(msg.Timestamp, msg.Sign) {
err := s_ctx.rmqServer.PublishPayResp(message.PayMsg_resp{
QueueId: msg.QueueId,
Status: STATUS_VERIFY_FAILED,
Amount: msg.Amount,
Chain: msg.Chain,
Symbol: msg.Symbol,
OrderId: msg.OrderId,
TxHash: "",
})
if err != nil {
log.Printf("❌ 发布支付失败响应失败: %v", err)
}
return
}
// 执行转账
err := s_ctx.blockChainServer.Transfer(msg.Chain, msg.Symbol, msg)
if err != nil {
log.Printf("❌ 支付转账失败: %v", err)
// 发送失败响应
s_ctx.rmqServer.PublishPayResp(message.PayMsg_resp{
QueueId: msg.QueueId,
Status: STATUS_FAILED,
Amount: msg.Amount,
Chain: msg.Chain,
Symbol: msg.Symbol,
OrderId: msg.OrderId,
TxHash: "",
})
}
}
}
func initRmqListen() {
// ================== 设置 RabbitMQ 消息处理回调 ==================
// 先设置所有回调(同步执行,避免竞态)
handleTopupMsg()
handleWithdrawMsg()
handlePayMsg()
// 回调设置完成后,再启动 RabbitMQ 监听
if err := s_ctx.rmqServer.Start(); err != nil {
log.Fatalf("启动 RabbitMQ 监听失败: %v", err)
}
log.Println("✅ RabbitMQ 监听启动完成")
}
func handleChainEvent(chainEventCh chan any) {
for event := range chainEventCh {
// 添加 panic 恢复,防止单个消息处理错误导致整个 goroutine 退出
func() {
defer func() {
if r := recover(); r != nil {
log.Printf("❌ 处理链上事件 panic: %v, event: %+v", r, event)
}
}()
// 根据消息类型发送不同的响应
switch msg := event.(type) {
case message.TopupMsg_resp:
// 充值确认
if msg.Status == STATUS_PENDING {
log.Printf("📨 [链上] 充值待确认: Address=%s, Amount=%.2f, TxHash=%s",
msg.Address, msg.Amount, msg.TxHash)
} else {
log.Printf("✅ [链上] 充值确认: Address=%s, Amount=%.2f, TxHash=%s, Status=%d",
msg.Address, msg.Amount, msg.TxHash, msg.Status)
}
err := s_ctx.rmqServer.PublishTopupResp(msg)
if err != nil {
log.Printf("❌ 发送充值响应失败: %v", err)
}
case message.WithdrawMsg_resp:
// 提现确认
log.Printf("✅ [链上] 提现确认: QueueId=%s, Amount=%.2f, TxHash=%s, Status=%d",
msg.QueueId, msg.Amount, msg.TxHash, msg.Status)
err := s_ctx.rmqServer.PublishWithdrawResp(msg)
if err != nil {
log.Printf("❌ 发送提现响应失败: %v", err)
}
case message.PayMsg_resp:
// 支付确认
log.Printf("✅ [链上] 支付确认: QueueId=%s, OrderId=%s, Amount=%.2f, TxHash=%s, Status=%d",
msg.QueueId, msg.OrderId, msg.Amount, msg.TxHash, msg.Status)
err := s_ctx.rmqServer.PublishPayResp(msg)
if err != nil {
log.Printf("❌ 发送支付响应失败: %v", err)
}
default:
log.Printf("⚠️ 未知消息类型: %T", event)
}
}()
}
}
func Start() {
log.Println("========================================")
log.Println("🚀 M2Pool Payment System Starting...")
log.Println("========================================")
// 加载配置
loadConfig()
// ================== 初始化区块链节点 ==================
initBlockChainServer()
// ================== 初始化 RabbitMQ 服务 ==================
initRmqServer()
// ================== 启动链上事件监听通道 ==================
chainEventCh := make(chan any, 1000) // 增加缓冲区,避免高并发丢消息
go s_ctx.blockChainServer.Listen("ETH", "USDT", chainEventCh)
// ================== 启动 RabbitMQ 监听 ==================
initRmqListen()
// ================== 处理链上确认事件 ==================
go handleChainEvent(chainEventCh)
log.Println("========================================")
log.Println("🎉 所有服务启动完成!")
log.Println("========================================")
// ================== 等待退出信号 ==================
sigCh := make(chan os.Signal, 1)
signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
<-sigCh
// 优雅关闭
log.Println("========================================")
log.Println("🛑 收到退出信号,正在关闭服务...")
log.Println("========================================")
s_ctx.blockChainServer.Stop("ETH")
s_ctx.rmqServer.Close()
log.Println("👋 服务已全部关闭")
}

40
internal/utils/utils.go Normal file
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@@ -0,0 +1,40 @@
package utils
import (
"log"
"math"
"math/big"
)
func BigIntUSDTToFloat64(value *big.Int) float64 {
f := new(big.Float).SetInt(value)
scale := new(big.Float).SetFloat64(1e6) // USDT 精度 6 位
f.Quo(f, scale)
result, _ := f.Float64()
return result
}
// USDT 一般精度是 6 位小数
const USDTDecimals = 6
// Float64ToBigIntUSDT 将 float64 金额转换成 *big.Int
func Float64ToBigIntUSDT(amount float64) *big.Int {
// 乘上精度系数
scale := math.Pow10(USDTDecimals)
bigAmount := new(big.Int)
bigAmount.SetInt64(int64(amount * scale))
return bigAmount
}
func Slice_delete(arr []any, index int) []any {
if index < 0 || index >= len(arr) {
// 处理越界
log.Fatalf("slice arr error: index=%d, arr length=%d", index, len(arr))
return nil
}
if index >= 0 && index < len(arr) {
copy(arr[index:], arr[index+1:]) // 后面的元素往前移动
arr = arr[:len(arr)-1] // 去掉最后一个多余元素
}
return arr
}