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 metrics
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import (
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"fmt"
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"net/http"
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"regexp"
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"sort"
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"strings"
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)
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var metricNameRE = regexp.MustCompile(`[^a-zA-Z0-9_:]`)
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var labelNameRE = regexp.MustCompile(`[^a-zA-Z0-9_]`)
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type prometheusSample struct {
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name string
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typ Type
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labels string
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value int64
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float bool
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floatValue float64
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}
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func Handler(registry *Registry) http.HandlerFunc {
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return func(w http.ResponseWriter, _ *http.Request) {
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w.Header().Set("Content-Type", "text/plain; version=0.0.4; charset=utf-8")
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ObserveRuntime(registry)
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registry.RunObservers()
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WritePrometheus(w, registry.Snapshot())
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}
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}
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func WritePrometheus(w interface{ Write([]byte) (int, error) }, samples []Sample) {
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seenTypes := make(map[string]Type)
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for _, sample := range normalizeSamples(samples) {
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// Histogram 多个子样本共享同一 base 名字 (<base>_bucket / _count / _sum)，
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// TYPE 标注必须按 family 去重；其他类型按完整 metric 名去重保持原行为。
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typeKey := sample.name
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if sample.typ == TypeHistogram {
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typeKey = histogramFamily(sample.name)
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}
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if existing, ok := seenTypes[typeKey]; ok {
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if existing != sample.typ {
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continue
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}
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} else {
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seenTypes[typeKey] = sample.typ
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_, _ = fmt.Fprintf(w, "# TYPE %s %s\n", typeKey, prometheusType(sample.typ))
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}
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if sample.float {
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// 用 %g 而非 %f：histogram 的 sum 既要避免 1.0e-06 这种科学计数，
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// 又要避免拖一长串无意义的零；%g 在大多数 latency 场景下输出可读小数。
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_, _ = fmt.Fprintf(w, "%s%s %g\n", sample.name, sample.labels, sample.floatValue)
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} else {
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_, _ = fmt.Fprintf(w, "%s%s %d\n", sample.name, sample.labels, sample.value)
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}
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}
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}
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// histogramFamily 把 <base>_bucket / <base>_count / <base>_sum
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// 还原成 <base>，用于 TYPE 标注去重。未识别后缀时返回原名，等价于"该样本自己就是 family"。
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func histogramFamily(name string) string {
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for _, suffix := range []string{"_sum", "_count", "_bucket"} {
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if strings.HasSuffix(name, suffix) {
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return strings.TrimSuffix(name, suffix)
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}
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}
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return name
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}
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func normalizeSamples(samples []Sample) []prometheusSample {
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merged := make(map[string]prometheusSample, len(samples))
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for _, sample := range samples {
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name := normalizeName(sample.Name)
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if name == "" {
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continue
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}
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labels := formatLabels(sample.Labels)
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key := string(sample.Type) + "\x00" + name + "\x00" + labels
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current := merged[key]
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if current.name == "" {
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current = prometheusSample{name: name, typ: sample.Type, labels: labels}
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}
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// Histogram observers 写入的是绝对值（替换语义，跟 gauge 一致），不能累加；
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// 否则 bucket / count / sum 会被多次叠加。Gauge 同理。
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switch sample.Type {
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case TypeGauge, TypeHistogram:
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current.value = sample.Value
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current.float = sample.Float
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current.floatValue = sample.FloatValue
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default:
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current.value += sample.Value
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}
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merged[key] = current
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}
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out := make([]prometheusSample, 0, len(merged))
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for _, sample := range merged {
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out = append(out, sample)
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}
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sort.Slice(out, func(i, j int) bool {
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if out[i].name != out[j].name {
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return out[i].name < out[j].name
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}
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if out[i].typ != out[j].typ {
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return out[i].typ < out[j].typ
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}
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return out[i].labels < out[j].labels
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})
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return out
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}
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func prometheusType(t Type) string {
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switch t {
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case TypeGauge:
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return "gauge"
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case TypeHistogram:
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return "histogram"
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default:
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return "counter"
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}
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}
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func normalizeName(name string) string {
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return normalizeIdentifier(name, metricNameRE, true)
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}
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func normalizeLabelName(name string) string {
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return normalizeIdentifier(name, labelNameRE, false)
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}
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func normalizeIdentifier(name string, invalid *regexp.Regexp, allowColonFirst bool) string {
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name = strings.TrimSpace(name)
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name = invalid.ReplaceAllString(name, "_")
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name = strings.Trim(name, "_")
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if name == "" {
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return ""
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}
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first := name[0]
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if isAlpha(first) || first == '_' || (allowColonFirst && first == ':') {
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return name
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}
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return "_" + name
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}
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func isAlpha(b byte) bool {
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return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z')
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}
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func formatLabels(labels map[string]string) string {
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if len(labels) == 0 {
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return ""
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}
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normalized := make(map[string]string, len(labels))
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keys := make([]string, 0, len(labels))
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originalKeys := make([]string, 0, len(labels))
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for key := range labels {
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originalKeys = append(originalKeys, key)
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}
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sort.Strings(originalKeys)
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for _, key := range originalKeys {
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name := normalizeLabelName(key)
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if name != "" {
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if _, exists := normalized[name]; exists {
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continue
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}
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normalized[name] = labels[key]
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keys = append(keys, name)
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}
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}
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sort.Strings(keys)
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if len(keys) == 0 {
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return ""
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}
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var b strings.Builder
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b.WriteByte('{')
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for idx, key := range keys {
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if idx > 0 {
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b.WriteByte(',')
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}
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b.WriteString(key)
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b.WriteString(`="`)
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b.WriteString(escapeLabel(normalized[key]))
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b.WriteByte('"')
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}
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b.WriteByte('}')
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return b.String()
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}
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func escapeLabel(value string) string {
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value = strings.ReplaceAll(value, `\`, `\\`)
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value = strings.ReplaceAll(value, "\n", `\n`)
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value = strings.ReplaceAll(value, `"`, `\"`)
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return value
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}
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