rootandClaude Opus 5
ed51664a09
媒资库会给同一集重新发 hashId（「JK学姐不为人知的秘密」源库那条 hashId 6aa23652…、本地那条 6acaf74c…，videoUrl 一模一样）， 只比 hashId 会漏掉这一类重复，前端仍显示「1 1 2 2」。 改成 mediaId 下 hashId 或 videoUrl 任一相同即认定是同一集。 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
586 lines
17 KiB
Go
586 lines
17 KiB
Go
// contentsync 把源库(91porn_video)的帖子/视频/短剧增量同步到若干目标库。
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//
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// 增量策略（每个集合、每个目标库各自记水位线）：
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// - 新增：按 _id 升序游标，_id > lastID。ObjectId 单调递增且天然有索引。
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// - 修改：按 tsField > lastTS。仅对有该字段且建了索引的集合启用。
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// 没有可靠时间字段的集合（media_content/media_tag/tag）靠定期 --full 兜底。
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//
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// 写入语义：$set 内容字段 + $setOnInsert 站点本地字段（见 spec.go）。
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// 只更新不删除；源库下架通过 status 字段自然同步。
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package main
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import (
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"context"
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"encoding/json"
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"flag"
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"fmt"
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"os"
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"strings"
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"time"
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"go.mongodb.org/mongo-driver/bson"
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"go.mongodb.org/mongo-driver/bson/primitive"
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"go.mongodb.org/mongo-driver/mongo"
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"go.mongodb.org/mongo-driver/mongo/options"
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)
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// 源库名由 --src-db 指定。两个源库 91porn_video 与 91dj_video 老数据同源但已分叉
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// （最新 500 条零重叠），所以每个目标库只能配一个源，不能混。
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const defaultSrcDBName = "91porn_video"
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type mark struct {
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LastID string `json:"lastId"`
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LastTS time.Time `json:"lastTs"`
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}
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// state: target -> collection -> mark
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type state map[string]map[string]*mark
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func loadState(p string) state {
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s := state{}
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b, err := os.ReadFile(p)
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if err != nil {
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return s
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}
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_ = json.Unmarshal(b, &s)
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return s
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}
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func saveState(p string, s state) error {
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b, err := json.MarshalIndent(s, "", " ")
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if err != nil {
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return err
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}
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tmp := p + ".tmp"
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if err := os.WriteFile(tmp, b, 0o600); err != nil {
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return err
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}
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return os.Rename(tmp, p) // 原子替换，避免崩溃时留下半截状态
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}
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func (s state) get(target, coll string) *mark {
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if s[target] == nil {
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s[target] = map[string]*mark{}
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}
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if s[target][coll] == nil {
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s[target][coll] = &mark{}
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}
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return s[target][coll]
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}
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// dstList 让 --dst 可以重复出现。MongoDB URI 自身含逗号（副本集主机列表），
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// 所以不能用逗号分隔多个目标。
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type dstList []string
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func (d *dstList) String() string { return strings.Join(*d, " ") }
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func (d *dstList) Set(v string) error {
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*d = append(*d, v)
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return nil
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}
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type target struct {
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name string
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db *mongo.Database
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}
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func main() {
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var (
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srcURI = flag.String("src", "", "源库 URI")
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dsts dstList
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srcDBName = flag.String("src-db", defaultSrcDBName, "源库名")
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statePath = flag.String("state", "/server/sync/state.json", "水位线状态文件")
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full = flag.Bool("full", false, "忽略水位线做全量扫描（用于兜底修复）")
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dryRun = flag.Bool("dry-run", false, "只统计不写入")
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only = flag.String("only", "", "只同步指定集合，逗号分隔")
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batchSize = flag.Int("batch", 500, "每批写入条数")
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sweep = flag.Bool("sweep-deleted", true, "回传源库软删除标记（清理重复剧集）")
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timeout = flag.Duration("timeout", 30*time.Minute, "整体超时")
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)
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flag.Var(&dsts, "dst", "目标库，格式 name=uri；可重复指定多个")
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flag.Parse()
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if *srcURI == "" || len(dsts) == 0 {
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fmt.Fprintln(os.Stderr, "必须指定 --src 和 --dst")
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os.Exit(2)
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}
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ctx, cancel := context.WithTimeout(context.Background(), *timeout)
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defer cancel()
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srcCli, err := mongo.Connect(ctx, options.Client().ApplyURI(*srcURI))
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if err != nil {
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fatal("连接源库失败: %v", err)
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}
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defer srcCli.Disconnect(context.Background())
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srcDB := srcCli.Database(*srcDBName)
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var targets []target
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for _, part := range dsts {
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part = strings.TrimSpace(part)
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if part == "" {
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continue
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}
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name, uri, ok := strings.Cut(part, "=")
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if !ok {
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fatal("--dst 格式错误，应为 name=uri: %s", part)
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}
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cli, err := mongo.Connect(ctx, options.Client().ApplyURI(uri))
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if err != nil {
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fatal("连接目标库 %s 失败: %v", name, err)
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}
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defer cli.Disconnect(context.Background())
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targets = append(targets, target{name: name, db: cli.Database(name)})
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}
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wanted := map[string]bool{}
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for _, n := range strings.Split(*only, ",") {
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if n = strings.TrimSpace(n); n != "" {
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wanted[n] = true
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}
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}
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st := loadState(*statePath)
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started := time.Now()
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var totalUp, totalIns int
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failed := false
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for _, spec := range specs {
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if len(wanted) > 0 && !wanted[spec.Name] {
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continue
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}
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for _, t := range targets {
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ins, up, err := syncOne(ctx, srcDB, t, spec, st, *full, *dryRun, *batchSize)
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if err != nil {
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fmt.Printf("[FAIL] %-20s -> %-10s %v\n", spec.Name, t.name, err)
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failed = true
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continue
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}
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totalIns += ins
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totalUp += up
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fmt.Printf("[ok] %-20s -> %-10s 新增 %6d 更新 %6d\n", spec.Name, t.name, ins, up)
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if !*dryRun {
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if err := saveState(*statePath, st); err != nil {
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fmt.Printf("[WARN] 写状态文件失败: %v\n", err)
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}
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}
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}
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}
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if *sweep {
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for _, coll := range tombstoneColls {
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if len(wanted) > 0 && !wanted[coll] {
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continue
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}
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for _, t := range targets {
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n, fixed, err := sweepDeleted(ctx, srcDB, t, coll, *dryRun)
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if err != nil {
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fmt.Printf("[FAIL] 补扫软删除 %-14s -> %-10s %v\n", coll, t.name, err)
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failed = true
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continue
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}
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fmt.Printf("[ok] 补扫软删除 %-14s -> %-10s 标记 %5d 重算父级 %4d\n", coll, t.name, n, fixed)
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}
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}
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}
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fmt.Printf("\n合计 新增 %d 更新 %d，耗时 %s\n", totalIns, totalUp, time.Since(started).Round(time.Second))
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if failed {
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os.Exit(1)
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}
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}
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func syncOne(ctx context.Context, srcDB *mongo.Database, t target, spec CollSpec,
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st state, full, dryRun bool, batchSize int) (ins, up int, err error) {
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m := st.get(t.name, spec.Name)
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local := map[string]bool{}
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for _, f := range spec.LocalFields {
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local[f] = true
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}
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// 只按 _id 水位线取新增。ObjectId 单调递增且天然有索引，
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// 所以每次只读上次同步之后产生的文档，跟集合总量无关。
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//
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// 刻意不做存量修改比对：源库改了已存在的文档不会同步过来。
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// 需要补齐时用 --full 手动重扫一次。
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filter := bson.M{}
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if !full && m.LastID != "" {
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oid, e := primitive.ObjectIDFromHex(m.LastID)
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if e == nil {
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filter["_id"] = bson.M{"$gt": oid}
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}
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}
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ins, up, maxID, err := runPass(ctx, srcDB, t, spec, local, filter,
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bson.D{{Key: "_id", Value: 1}}, dryRun, batchSize)
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if err != nil {
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return ins, up, err
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}
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// 水位线只在真跑时推进，干跑不能改状态
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if !dryRun && maxID != primitive.NilObjectID {
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m.LastID = maxID.Hex()
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}
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return ins, up, nil
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}
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func runPass(ctx context.Context, srcDB *mongo.Database, t target, spec CollSpec,
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local map[string]bool, filter bson.M, sortBy bson.D, dryRun bool, batchSize int,
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) (ins, up int, maxID primitive.ObjectID, err error) {
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srcCur, err := srcDB.Collection(spec.Name).Find(ctx, filter,
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options.Find().SetSort(sortBy).SetBatchSize(int32(batchSize)).SetNoCursorTimeout(true))
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if err != nil {
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return 0, 0, maxID, err
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}
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defer srcCur.Close(ctx)
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dst := t.db.Collection(spec.Name)
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pending := make([]bson.M, 0, batchSize)
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scanned, skipped, deduped := 0, 0, 0
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lastLog := time.Now()
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// blockedIDs 查出这批里哪些在目标库已被本地下架(status:0)。
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// 目标库没有 status 字段的集合自然查不出东西，等于不生效。
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blockedIDs := func(docs []bson.M) (map[any]bool, error) {
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out := map[any]bool{}
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ids := make([]any, 0, len(docs))
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for _, d := range docs {
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ids = append(ids, d["_id"])
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}
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c, e := dst.Find(ctx, bson.M{"_id": bson.M{"$in": ids}, "status": 0},
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options.Find().SetProjection(bson.M{"_id": 1}))
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if e != nil {
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return nil, e
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}
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defer c.Close(ctx)
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for c.Next(ctx) {
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var row bson.M
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if e := c.Decode(&row); e == nil {
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out[row["_id"]] = true
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}
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}
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return out, c.Err()
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}
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// localTwins 查出这批源文档在目标库的「同一集另一条」：同属一个 mediaId，
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// 且 hashId 或 videoUrl 相同，但 _id 不同。
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//
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// 各站点自己也在跑媒资库同步(common/media/syncMedia.go)，它按
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// (mediaId, hashId) 去重、用自己的 _id 为同一集插一条；本同步再把源库那条
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// 插进来，同一集就变成两条，前端剧集列表显示「1 1 2 2」。
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// 更要紧的是媒资库那条在 SaleCoin=0 时 listenPermission=2（免费），
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// 等于用户可以白看本该收费的集。
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//
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// 必须同时认 videoUrl：媒资库会给同一集重新发 hashId（实测
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// 「JK学姐不为人知的秘密」源库那条 hashId 6aa23652…、本地那条
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// 6acaf74c…，videoUrl 却一模一样），只比 hashId 会漏掉这一类。
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//
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// 以源库那条为准（购买记录都挂在它上面），把本地那条下架 isActive:false，
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// 不删除，便于事后回查。
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localTwins := func(docs []bson.M) (map[any]any, error) {
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keys := make([]any, 0, len(docs)*2) // 待查的 hashId 与 videoUrl
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want := map[string]any{} // mediaId|key -> 源库 _id
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add := func(mid primitive.ObjectID, v string, id any) {
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if v == "" {
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return
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}
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keys = append(keys, v)
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want[mid.Hex()+"|"+v] = id
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}
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for _, d := range docs {
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mid, ok := d["mediaId"].(primitive.ObjectID)
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if !ok {
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continue
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}
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h, _ := d["hashId"].(string)
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u, _ := d["videoUrl"].(string)
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add(mid, h, d["_id"])
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add(mid, u, d["_id"])
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}
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if len(keys) == 0 {
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return nil, nil
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}
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// hashId 上有索引；videoUrl 没有，所以放在同一个 $or 里一次查完
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c, e := dst.Find(ctx, bson.M{"isActive": true, "$or": []bson.M{
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{"hashId": bson.M{"$in": keys}},
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{"videoUrl": bson.M{"$in": keys}},
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}}, options.Find().SetProjection(bson.M{"_id": 1, "mediaId": 1, "hashId": 1, "videoUrl": 1}))
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if e != nil {
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return nil, e
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}
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defer c.Close(ctx)
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out := map[any]any{}
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for c.Next(ctx) {
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var row struct {
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ID primitive.ObjectID `bson:"_id"`
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MediaID primitive.ObjectID `bson:"mediaId"`
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HashID string `bson:"hashId"`
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VideoURL string `bson:"videoUrl"`
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}
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if e := c.Decode(&row); e != nil {
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return nil, e
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}
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for _, k := range []string{row.HashID, row.VideoURL} {
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if k == "" {
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continue
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}
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srcID, ok := want[row.MediaID.Hex()+"|"+k]
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if !ok {
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continue
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}
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if sid, ok := srcID.(primitive.ObjectID); ok && sid == row.ID {
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continue // 就是源库那条自己，不是重复
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}
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out[srcID] = row.ID
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break
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}
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}
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return out, c.Err()
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}
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flush := func() error {
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if len(pending) == 0 {
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return nil
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}
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docs := pending
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pending = make([]bson.M, 0, batchSize)
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blocked, e := blockedIDs(docs)
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if e != nil {
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return e
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}
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twins, e := localTwins(docs)
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if e != nil {
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return e
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}
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models := make([]mongo.WriteModel, 0, len(docs))
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for _, doc := range docs {
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id := doc["_id"]
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// 站点运营下架之后，源库无权再改它——整条跳过，内容字段也不写。
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if blocked[id] {
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skipped++
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continue
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}
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set := bson.M{}
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onInsert := bson.M{}
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for k, v := range doc {
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if k == "_id" {
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continue
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}
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if local[k] {
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onInsert[k] = v
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} else {
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set[k] = v
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}
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}
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update := bson.M{}
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if len(set) > 0 {
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update["$set"] = set
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}
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if len(onInsert) > 0 {
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update["$setOnInsert"] = onInsert
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}
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if len(update) == 0 {
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continue
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}
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models = append(models, mongo.NewUpdateOneModel().
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SetFilter(bson.M{"_id": id}).SetUpdate(update).SetUpsert(true))
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// 同一集本地已有另一条（媒资库同步插的），把它下架
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if twinID, ok := twins[id]; ok {
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models = append(models, mongo.NewUpdateOneModel().
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SetFilter(bson.M{"_id": twinID}).
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SetUpdate(bson.M{"$set": bson.M{"isActive": false}}))
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deduped++
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}
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}
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if len(models) == 0 {
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return nil
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}
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if dryRun {
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up += len(models)
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return nil
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}
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res, e := dst.BulkWrite(ctx, models, options.BulkWrite().SetOrdered(false))
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if e != nil {
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if res != nil {
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ins += int(res.UpsertedCount)
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up += int(res.ModifiedCount)
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}
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return e
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}
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ins += int(res.UpsertedCount)
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up += int(res.ModifiedCount)
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return nil
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}
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for srcCur.Next(ctx) {
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var doc bson.M
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if e := srcCur.Decode(&doc); e != nil {
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return ins, up, maxID, e
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}
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scanned++
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// 大集合动辄几十万条，cron 里长时间无输出无法判断死活
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if time.Since(lastLog) >= 30*time.Second {
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fmt.Printf(" %-20s -> %-10s 已扫描 %d 条…\n", spec.Name, t.name, scanned)
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lastLog = time.Now()
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}
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// 水位线推进到扫过的最大 _id。即使这条因本地下架被跳过也要推进，
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// 否则它会永久卡住水位线，导致每次都从它开始重扫。
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if id, ok := doc["_id"].(primitive.ObjectID); ok && !id.IsZero() {
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if maxID.IsZero() || id.Hex() > maxID.Hex() {
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maxID = id
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}
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}
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pending = append(pending, doc)
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if len(pending) >= batchSize {
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if e := flush(); e != nil {
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return ins, up, maxID, e
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}
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}
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}
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if e := srcCur.Err(); e != nil {
|
||
return ins, up, maxID, e
|
||
}
|
||
if e := flush(); e != nil {
|
||
return ins, up, maxID, e
|
||
}
|
||
if skipped > 0 {
|
||
fmt.Printf(" %-20s -> %-10s 跳过 %d 条（本地已下架）\n", spec.Name, t.name, skipped)
|
||
}
|
||
if deduped > 0 {
|
||
fmt.Printf(" %-20s -> %-10s 下架 %d 条本地重复集（媒资库同步插的同一集）\n", spec.Name, t.name, deduped)
|
||
}
|
||
return ins, up, maxID, nil
|
||
}
|
||
|
||
// tombstoneColls 需要回传源库软删除标记的集合。
|
||
//
|
||
// 常规同步只按 _id 水位线插新增，源库事后打上的 isDelete 永远传不过来：
|
||
// 源站把重复剧集软删掉了，目标库却还留着，App 的剧集列表就会出现
|
||
// 「1 1 1 2 2 2」这种重复集。每轮补扫一次把标记补齐。
|
||
//
|
||
// 只做「源库删了 → 目标库也删」这一个方向，绝不把目标库已删的恢复回来，
|
||
// 所以和「本地下架后不再同步」不冲突。
|
||
var tombstoneColls = []string{"media", "media_content", "video_info"}
|
||
|
||
// sweepDeleted 把源库 isDelete:true 的文档在目标库也标成已删除，
|
||
// 并按 web/service/mediacontentser 的同一口径重算父级媒体的集数。
|
||
func sweepDeleted(ctx context.Context, srcDB *mongo.Database, t target, coll string, dryRun bool,
|
||
) (marked, fixed int, err error) {
|
||
|
||
cur, err := srcDB.Collection(coll).Find(ctx, bson.M{"isDelete": true},
|
||
options.Find().SetProjection(bson.M{"_id": 1}).SetNoCursorTimeout(true))
|
||
if err != nil {
|
||
return 0, 0, err
|
||
}
|
||
defer cur.Close(ctx)
|
||
|
||
dst := t.db.Collection(coll)
|
||
parents := map[primitive.ObjectID]bool{}
|
||
batch := make([]primitive.ObjectID, 0, 1000)
|
||
|
||
flush := func() error {
|
||
if len(batch) == 0 {
|
||
return nil
|
||
}
|
||
ids := batch
|
||
batch = make([]primitive.ObjectID, 0, 1000)
|
||
|
||
// 先把本轮真正要改的那几条捞出来，顺带记下父级，用于之后重算集数
|
||
hit := make([]primitive.ObjectID, 0, len(ids))
|
||
c, e := dst.Find(ctx, bson.M{"_id": bson.M{"$in": ids}, "isDelete": false},
|
||
options.Find().SetProjection(bson.M{"_id": 1, "mediaId": 1}))
|
||
if e != nil {
|
||
return e
|
||
}
|
||
defer c.Close(ctx)
|
||
for c.Next(ctx) {
|
||
var row struct {
|
||
ID primitive.ObjectID `bson:"_id"`
|
||
MediaID primitive.ObjectID `bson:"mediaId"`
|
||
}
|
||
if e := c.Decode(&row); e != nil {
|
||
return e
|
||
}
|
||
hit = append(hit, row.ID)
|
||
if coll == "media_content" && !row.MediaID.IsZero() {
|
||
parents[row.MediaID] = true
|
||
} else if coll == "media" {
|
||
parents[row.ID] = true
|
||
}
|
||
}
|
||
if e := c.Err(); e != nil {
|
||
return e
|
||
}
|
||
if len(hit) == 0 {
|
||
return nil
|
||
}
|
||
if dryRun {
|
||
marked += len(hit)
|
||
return nil
|
||
}
|
||
// 只写 isDelete，不碰 updateTime —— 那是站点本地字段
|
||
res, e := dst.UpdateMany(ctx, bson.M{"_id": bson.M{"$in": hit}},
|
||
bson.M{"$set": bson.M{"isDelete": true}})
|
||
if e != nil {
|
||
return e
|
||
}
|
||
marked += int(res.ModifiedCount)
|
||
return nil
|
||
}
|
||
|
||
for cur.Next(ctx) {
|
||
var row struct {
|
||
ID primitive.ObjectID `bson:"_id"`
|
||
}
|
||
if e := cur.Decode(&row); e != nil {
|
||
return marked, fixed, e
|
||
}
|
||
batch = append(batch, row.ID)
|
||
if len(batch) >= 1000 {
|
||
if e := flush(); e != nil {
|
||
return marked, fixed, e
|
||
}
|
||
}
|
||
}
|
||
if e := cur.Err(); e != nil {
|
||
return marked, fixed, e
|
||
}
|
||
if e := flush(); e != nil {
|
||
return marked, fixed, e
|
||
}
|
||
|
||
if dryRun || len(parents) == 0 {
|
||
return marked, len(parents), nil
|
||
}
|
||
|
||
// 父级的 currentEpisode/freeEpisode 原本只在后台编辑子集时重算，
|
||
// 这里补上，否则集数会停留在含重复集的旧值（如 2 集的剧显示 6 集）。
|
||
mc := t.db.Collection("media_content")
|
||
media := t.db.Collection("media")
|
||
for mid := range parents {
|
||
base := bson.M{"mediaId": mid, "isActive": true, "isDelete": false}
|
||
cnt, e := mc.CountDocuments(ctx, base)
|
||
if e != nil {
|
||
return marked, fixed, e
|
||
}
|
||
free, e := mc.CountDocuments(ctx, bson.M{"mediaId": mid, "listenPermission": 2,
|
||
"isActive": true, "isDelete": false})
|
||
if e != nil {
|
||
return marked, fixed, e
|
||
}
|
||
res, e := media.UpdateOne(ctx, bson.M{"_id": mid},
|
||
bson.M{"$set": bson.M{"currentEpisode": cnt, "freeEpisode": free}})
|
||
if e != nil {
|
||
return marked, fixed, e
|
||
}
|
||
fixed += int(res.ModifiedCount)
|
||
}
|
||
return marked, fixed, nil
|
||
}
|
||
|
||
func fatal(f string, a ...any) {
|
||
fmt.Fprintf(os.Stderr, f+"\n", a...)
|
||
os.Exit(1)
|
||
}
|