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 logic
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import (
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"context"
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"crypto/sha256"
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"database/sql"
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"encoding/hex"
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"encoding/json"
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"errors"
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"fmt"
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"strings"
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"sync"
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"time"
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_ "github.com/go-sql-driver/mysql"
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"longheng.io/server/internal/platform/config"
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"longheng.io/server/pkg/contracts"
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)
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type mysqlRespCache struct {
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db *sql.DB
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initErr error
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ensureSchema bool
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schemaMu sync.Mutex
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schemaReady bool
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schemaErr error
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keyPrefix string
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ttl time.Duration
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now func() time.Time
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}
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func newMySQLRespCache(cfg config.IdempotencySection, ttl time.Duration) *mysqlRespCache {
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if ttl <= 0 {
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ttl = 10 * time.Minute
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}
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dsn := strings.TrimSpace(cfg.MySQLDSN)
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if dsn == "" {
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dsn = "longheng:longheng@tcp(127.0.0.1:3306)/longheng?parseTime=true&charset=utf8mb4,utf8"
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}
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conn, err := sql.Open("mysql", dsn)
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if err == nil {
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maxOpen := cfg.MySQLMaxOpenConns
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if maxOpen <= 0 {
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maxOpen = 32
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}
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maxIdle := cfg.MySQLMaxIdleConns
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if maxIdle <= 0 {
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maxIdle = 8
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}
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lifetime := time.Duration(cfg.MySQLConnMaxLifetimeSec) * time.Second
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if lifetime <= 0 {
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lifetime = 5 * time.Minute
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}
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conn.SetMaxOpenConns(maxOpen)
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conn.SetMaxIdleConns(maxIdle)
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conn.SetConnMaxLifetime(lifetime)
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}
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return &mysqlRespCache{
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db: conn,
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initErr: err,
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ensureSchema: true,
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keyPrefix: respCachePrefix(cfg.KeyPrefix),
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ttl: ttl,
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now: time.Now,
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}
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}
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// Store 将响应缓存写入 MySQL 权威存储。
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func (c *mysqlRespCache) Store(ctx context.Context, key string, response contracts.LogicPlayerResponse) error {
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if ctx == nil {
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ctx = context.Background()
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}
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key = strings.TrimSpace(key)
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if key == "" {
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return nil
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}
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if err := c.ready(ctx); err != nil {
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return err
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}
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now := c.nowUTC()
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data, err := json.Marshal(clonePlayerResp(response))
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if err != nil {
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return err
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}
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_, err = c.db.ExecContext(ctx, //nolint:gosec // G202：SQL 只拼接框架固定表名/列名，缓存内容通过参数绑定。
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"INSERT INTO "+quoteMySQLIdent(logicRespCacheTable)+" ("+ //nolint:gosec // G202：SQL 只拼接框架固定表名/列名，缓存内容通过参数绑定。
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strings.Join([]string{
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quoteMySQLIdent("cache_key"),
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quoteMySQLIdent("original_key"),
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quoteMySQLIdent("response_json"),
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quoteMySQLIdent("expires_at"),
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quoteMySQLIdent("updated_at"),
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}, ", ")+") VALUES (?, ?, ?, ?, ?) ON DUPLICATE KEY UPDATE "+
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quoteMySQLIdent("original_key")+" = VALUES("+quoteMySQLIdent("original_key")+"), "+
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quoteMySQLIdent("response_json")+" = VALUES("+quoteMySQLIdent("response_json")+"), "+
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quoteMySQLIdent("expires_at")+" = VALUES("+quoteMySQLIdent("expires_at")+"), "+
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quoteMySQLIdent("updated_at")+" = VALUES("+quoteMySQLIdent("updated_at")+")",
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c.cacheKey(key),
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limitRespCacheText(key, 512),
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string(data),
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now.Add(c.ttl),
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now,
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)
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return err
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}
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// Get 从 MySQL 读取未过期的响应缓存。
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func (c *mysqlRespCache) Get(ctx context.Context, key string) (contracts.LogicPlayerResponse, bool, error) {
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if ctx == nil {
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ctx = context.Background()
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}
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key = strings.TrimSpace(key)
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if key == "" {
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return contracts.LogicPlayerResponse{}, false, nil
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}
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if err := c.ready(ctx); err != nil {
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return contracts.LogicPlayerResponse{}, false, err
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}
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now := c.nowUTC()
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var data []byte
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err := c.db.QueryRowContext(ctx,
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"SELECT "+quoteMySQLIdent("response_json")+" FROM "+quoteMySQLIdent(logicRespCacheTable)+" WHERE "+quoteMySQLIdent("cache_key")+" = ? AND "+quoteMySQLIdent("expires_at")+" > ? LIMIT 1",
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c.cacheKey(key),
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now,
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).Scan(&data)
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if errors.Is(err, sql.ErrNoRows) {
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_, _ = c.db.ExecContext(ctx, //nolint:gosec // G202：SQL 只拼接框架固定表名/列名，清理条件通过参数绑定。
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"DELETE FROM "+quoteMySQLIdent(logicRespCacheTable)+" WHERE "+quoteMySQLIdent("cache_key")+" = ? AND "+quoteMySQLIdent("expires_at")+" <= ?", //nolint:gosec // G202：SQL 只拼接框架固定表名/列名，清理条件通过参数绑定。
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c.cacheKey(key),
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now,
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)
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return contracts.LogicPlayerResponse{}, false, nil
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}
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if err != nil {
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return contracts.LogicPlayerResponse{}, false, err
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}
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var response contracts.LogicPlayerResponse
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if err := json.Unmarshal(data, &response); err != nil {
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return contracts.LogicPlayerResponse{}, false, err
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}
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return clonePlayerResp(response), true, nil
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}
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// Delete 从 MySQL 删除指定响应缓存。
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func (c *mysqlRespCache) Delete(ctx context.Context, key string) error {
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if c == nil || c.db == nil {
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return nil
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}
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if ctx == nil {
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ctx = context.Background()
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}
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if err := ctx.Err(); err != nil {
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return err
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}
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key = strings.TrimSpace(key)
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if key == "" {
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return nil
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}
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_, err := c.db.ExecContext(ctx, //nolint:gosec // G202：SQL 只拼接框架固定表名/列名，缓存键通过参数绑定。
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"DELETE FROM "+quoteMySQLIdent(logicRespCacheTable)+" WHERE "+quoteMySQLIdent("cache_key")+" = ?", //nolint:gosec // G202：SQL 只拼接框架固定表名/列名，缓存键通过参数绑定。
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c.cacheKey(key),
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)
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return err
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}
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// Snapshot 返回 MySQL 响应缓存的配置状态。
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func (c *mysqlRespCache) Snapshot() map[string]any {
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out := map[string]any{
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"backend": "mysql",
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}
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if c == nil {
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return out
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}
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out["ttl_seconds"] = int64(c.ttl / time.Second)
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out["key_prefix"] = c.keyPrefix
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return out
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}
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// Close 关闭 MySQL 响应缓存连接。
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func (c *mysqlRespCache) Close(context.Context) error {
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if c == nil || c.db == nil {
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return nil
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}
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return c.db.Close()
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}
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func (c *mysqlRespCache) ready(ctx context.Context) error {
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if ctx == nil {
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ctx = context.Background()
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}
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if err := ctx.Err(); err != nil {
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return err
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}
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if c == nil || c.db == nil {
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return errors.New("logic mysql response cache is nil")
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}
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if c.initErr != nil {
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return c.initErr
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}
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if c.ensureSchema {
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c.schemaMu.Lock()
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defer c.schemaMu.Unlock()
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if c.schemaReady {
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return nil
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}
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_, c.schemaErr = c.db.ExecContext(ctx, responseCacheDDL())
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if c.schemaErr == nil {
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c.schemaReady = true
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}
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}
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return c.schemaErr
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}
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func (c *mysqlRespCache) nowUTC() time.Time {
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if c == nil || c.now == nil {
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return time.Now().UTC()
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}
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return c.now().UTC()
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}
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func (c *mysqlRespCache) cacheKey(key string) string {
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return digestRespCacheKey(c.keyPrefix + "\x00" + key)
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}
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func responseCacheDDL() string {
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columns := []string{
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quoteMySQLIdent("cache_key") + " VARCHAR(128) NOT NULL",
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quoteMySQLIdent("original_key") + " VARCHAR(512) NOT NULL",
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quoteMySQLIdent("response_json") + " JSON NOT NULL",
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quoteMySQLIdent("expires_at") + " DATETIME(6) NOT NULL",
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quoteMySQLIdent("updated_at") + " DATETIME(6) NOT NULL",
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"PRIMARY KEY (" + quoteMySQLIdent("cache_key") + ")",
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"KEY " + quoteMySQLIdent("idx_logic_idempotency_responses_expires_at") + " (" + quoteMySQLIdent("expires_at") + ")",
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}
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return fmt.Sprintf(
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"CREATE TABLE IF NOT EXISTS %s (\n %s\n) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
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quoteMySQLIdent(logicRespCacheTable),
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strings.Join(columns, ",\n "),
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)
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}
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func quoteMySQLIdent(identifier string) string {
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return "`" + strings.ReplaceAll(identifier, "`", "``") + "`"
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}
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func limitRespCacheText(value string, limit int) string {
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original := value
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value = strings.ToValidUTF8(value, "")
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if limit <= 0 || len(value) <= limit {
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return value
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}
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sum := sha256.Sum256([]byte(original))
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suffix := ":" + hex.EncodeToString(sum[:8])
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if limit <= len(suffix) {
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return suffix[:limit]
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}
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return truncRespCacheText(value, limit-len(suffix)) + suffix
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}
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func truncRespCacheText(value string, limit int) string {
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if limit <= 0 || len(value) <= limit {
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if limit <= 0 {
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return ""
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}
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return value
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}
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last := 0
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for idx := range value {
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if idx > limit {
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return value[:last]
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}
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last = idx
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}
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return value[:last]
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}
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