DNF90 服务端与启动器完整源码（含 GM 工具功能增强）
服务端（Go）： - GM 塞背包/带属性装备发放：在线角色推送 op14 增量物品行，背包实时刷新，无需回角色选择界面 - GM 改金币/改等级：去掉在线拒绝，落库后推送 op14 钱包/op37 等级状态，在线实时刷新 - 等级端点统一切换到新版 GMSetCharacterLevel（自带在线刷新） - 无限/锁死疲劳模式 + 燃烧疲劳：每房间消耗 2 点、打怪与通关经验双倍 - 燃烧疲劳开关时给所有在线角色推送系统提示（op12 mode 0） - 深渊史诗掉率：GM 全局倍率 + 城镇增益药剂窗口倍率，真实接入掉落结算 启动器（Python/JS）： - 标题栏自绘、窗口 1204x717、禁止拖拽改大小、仅最小化/关闭 - GM 工具：疲劳与燃烧、深渊史诗掉率、拍卖行上架（单一定价对齐） - 拍卖行上架前端对齐服务端单一价格语义，修复 400 报错
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package bus
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import (
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"bytes"
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"encoding/binary"
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"encoding/json"
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"fmt"
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"io"
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"sort"
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"sync"
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"time"
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)
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const (
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NATSWireBinary = "binary_v1"
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NATSWireJSON = "json"
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)
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var (
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natsWireMagic = []byte{'L', 'H', 'B', '1'}
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natsWirePool = sync.Pool{New: func() any { return new(bytes.Buffer) }}
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)
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type natsWireMessage struct {
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Topic string
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Payload []byte
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PublishedAt time.Time
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Reply string
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RequestID string
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Trace map[string]string
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}
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type natsJSONWireMessage struct {
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Topic string `json:"topic"`
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Payload json.RawMessage `json:"payload"`
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PublishedAt time.Time `json:"published_at"`
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Reply string `json:"reply,omitempty"`
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RequestID string `json:"request_id,omitempty"`
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Trace map[string]string `json:"trace,omitempty"`
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}
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func isNATSWireEncoding(encoding string) bool {
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switch encoding {
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case NATSWireBinary, NATSWireJSON:
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return true
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default:
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return false
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}
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}
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func encodeNATSWire(msg natsWireMessage, encoding string) ([]byte, error) {
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if encoding == NATSWireJSON {
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return encodeNATSJSON(msg)
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}
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return encodeNATSBinary(msg)
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}
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func encodeNATSJSON(msg natsWireMessage) ([]byte, error) {
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return json.Marshal(natsJSONWireMessage{
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Topic: msg.Topic,
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Payload: json.RawMessage(msg.Payload),
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PublishedAt: msg.PublishedAt,
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Reply: msg.Reply,
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RequestID: msg.RequestID,
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Trace: msg.Trace,
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})
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}
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func decodeNATSWire(data []byte) (natsWireMessage, error) {
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if bytes.HasPrefix(data, natsWireMagic) {
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return decodeNATSBinary(data)
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}
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var wire natsJSONWireMessage
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if err := json.Unmarshal(data, &wire); err != nil {
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return natsWireMessage{}, err
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}
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return natsWireMessage{
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Topic: wire.Topic,
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Payload: append([]byte(nil), wire.Payload...),
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PublishedAt: wire.PublishedAt,
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Reply: wire.Reply,
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RequestID: wire.RequestID,
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Trace: wire.Trace,
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}, nil
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}
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func encodeNATSBinary(msg natsWireMessage) ([]byte, error) {
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buf := natsWirePool.Get().(*bytes.Buffer)
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buf.Reset()
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defer func() {
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buf.Reset()
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natsWirePool.Put(buf)
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}()
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buf.Write(natsWireMagic)
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writeVarint(buf, msg.PublishedAt.UnixNano())
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writeString(buf, msg.Topic)
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writeString(buf, msg.Reply)
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writeString(buf, msg.RequestID)
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writeTrace(buf, msg.Trace)
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writeBytes(buf, msg.Payload)
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return append([]byte(nil), buf.Bytes()...), nil
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}
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func decodeNATSBinary(data []byte) (natsWireMessage, error) {
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reader := bytes.NewReader(data)
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magic := make([]byte, len(natsWireMagic))
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if _, err := io.ReadFull(reader, magic); err != nil {
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return natsWireMessage{}, err
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}
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if !bytes.Equal(magic, natsWireMagic) {
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return natsWireMessage{}, fmt.Errorf("invalid nats wire magic")
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}
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unixNano, err := readVarint(reader)
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if err != nil {
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return natsWireMessage{}, err
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}
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topic, err := readString(reader)
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if err != nil {
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return natsWireMessage{}, err
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}
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reply, err := readString(reader)
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if err != nil {
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return natsWireMessage{}, err
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}
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requestID, err := readString(reader)
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if err != nil {
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return natsWireMessage{}, err
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}
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trace, err := readTrace(reader)
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if err != nil {
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return natsWireMessage{}, err
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}
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payload, err := readBytes(reader)
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if err != nil {
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return natsWireMessage{}, err
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}
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if reader.Len() != 0 {
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return natsWireMessage{}, fmt.Errorf("nats wire has %d trailing bytes", reader.Len())
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}
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var publishedAt time.Time
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if unixNano != 0 {
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publishedAt = time.Unix(0, unixNano).UTC()
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}
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return natsWireMessage{
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Topic: topic,
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Payload: payload,
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PublishedAt: publishedAt,
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Reply: reply,
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RequestID: requestID,
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Trace: trace,
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}, nil
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}
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func writeVarint(buf *bytes.Buffer, value int64) {
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var scratch [binary.MaxVarintLen64]byte
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n := binary.PutVarint(scratch[:], value)
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buf.Write(scratch[:n])
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}
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func readVarint(reader *bytes.Reader) (int64, error) {
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value, err := binary.ReadVarint(reader)
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if err != nil {
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return 0, fmt.Errorf("read varint: %w", err)
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}
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return value, nil
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}
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func writeUvarint(buf *bytes.Buffer, value uint64) {
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var scratch [binary.MaxVarintLen64]byte
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n := binary.PutUvarint(scratch[:], value)
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buf.Write(scratch[:n])
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}
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func readUvarint(reader *bytes.Reader) (uint64, error) {
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value, err := binary.ReadUvarint(reader)
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if err != nil {
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return 0, fmt.Errorf("read uvarint: %w", err)
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}
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return value, nil
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}
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func writeString(buf *bytes.Buffer, value string) {
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writeBytes(buf, []byte(value))
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}
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func readString(reader *bytes.Reader) (string, error) {
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value, err := readBytes(reader)
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if err != nil {
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return "", err
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}
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return string(value), nil
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}
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func writeBytes(buf *bytes.Buffer, value []byte) {
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writeUvarint(buf, uint64(len(value)))
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buf.Write(value)
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}
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func readBytes(reader *bytes.Reader) ([]byte, error) {
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length, err := readUvarint(reader)
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if err != nil {
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return nil, err
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}
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if length > uint64(reader.Len()) { //nolint:gosec // G115：bytes.Reader.Len 永远非负，这里只用于剩余长度上界比较。
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return nil, fmt.Errorf("nats wire length %d exceeds remaining %d", length, reader.Len())
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}
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value := make([]byte, int(length)) //nolint:gosec // G115：前面已确认 length 不超过 reader.Len。
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if _, err := io.ReadFull(reader, value); err != nil {
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return nil, err
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}
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return value, nil
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}
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func writeTrace(buf *bytes.Buffer, trace map[string]string) {
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if len(trace) == 0 {
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writeUvarint(buf, 0)
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return
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}
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keys := make([]string, 0, len(trace))
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for key := range trace {
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keys = append(keys, key)
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}
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sort.Strings(keys)
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writeUvarint(buf, uint64(len(keys)))
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for _, key := range keys {
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writeString(buf, key)
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writeString(buf, trace[key])
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}
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}
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func readTrace(reader *bytes.Reader) (map[string]string, error) {
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count, err := readUvarint(reader)
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if err != nil {
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return nil, err
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}
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if count == 0 {
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return nil, nil
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}
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maxEntries := uint64(reader.Len() / 2) //nolint:gosec // G115：bytes.Reader.Len 永远非负，这里估算剩余 trace 最多条目。
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if count > maxEntries {
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return nil, fmt.Errorf("nats wire trace count %d exceeds remaining %d", count, reader.Len())
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}
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trace := make(map[string]string, int(count)) //nolint:gosec // G115：前面已按剩余字节数约束 count。
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for i := uint64(0); i < count; i++ {
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key, err := readString(reader)
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if err != nil {
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return nil, err
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}
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value, err := readString(reader)
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if err != nil {
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return nil, err
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}
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trace[key] = value
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}
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return trace, nil
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}
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