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ip_list_sqlite.go
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ip_list_sqlite.go
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// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
package iplibrary
import (
"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
"github.com/TeaOSLab/EdgeNode/internal/events"
"github.com/TeaOSLab/EdgeNode/internal/goman"
"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
"github.com/TeaOSLab/EdgeNode/internal/utils/dbs"
"github.com/TeaOSLab/EdgeNode/internal/utils/idles"
"github.com/iwind/TeaGo/Tea"
"os"
"path/filepath"
"time"
)
type SQLiteIPList struct {
db *dbs.DB
itemTableName string
versionTableName string
deleteExpiredItemsStmt *dbs.Stmt
deleteItemStmt *dbs.Stmt
insertItemStmt *dbs.Stmt
selectItemsStmt *dbs.Stmt
selectMaxItemVersionStmt *dbs.Stmt
selectVersionStmt *dbs.Stmt
updateVersionStmt *dbs.Stmt
cleanTicker *time.Ticker
dir string
isClosed bool
}
func NewSQLiteIPList() (*SQLiteIPList, error) {
var db = &SQLiteIPList{
itemTableName: "ipItems",
versionTableName: "versions",
dir: filepath.Clean(Tea.Root + "/data"),
cleanTicker: time.NewTicker(24 * time.Hour),
}
err := db.init()
return db, err
}
func (this *SQLiteIPList) init() error {
// 检查目录是否存在
_, err := os.Stat(this.dir)
if err != nil {
err = os.MkdirAll(this.dir, 0777)
if err != nil {
return err
}
remotelogs.Println("IP_LIST_DB", "create data dir '"+this.dir+"'")
}
var path = this.dir + "/ip_list.db"
db, err := dbs.OpenWriter("file:" + path + "?cache=shared&mode=rwc&_journal_mode=WAL&_sync=" + dbs.SyncMode + "&_locking_mode=EXCLUSIVE")
if err != nil {
return err
}
db.SetMaxOpenConns(1)
//_, err = db.Exec("VACUUM")
//if err != nil {
// return err
//}
this.db = db
// 恢复数据库
var recoverEnv, _ = os.LookupEnv("EdgeRecover")
if len(recoverEnv) > 0 {
for _, indexName := range []string{"ip_list_itemId", "ip_list_expiredAt"} {
_, _ = db.Exec(`REINDEX "` + indexName + `"`)
}
}
// 初始化数据库
_, err = db.Exec(`CREATE TABLE IF NOT EXISTS "` + this.itemTableName + `" (
"id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
"listId" integer DEFAULT 0,
"listType" varchar(32),
"isGlobal" integer(1) DEFAULT 0,
"type" varchar(16),
"itemId" integer DEFAULT 0,
"ipFrom" varchar(64) DEFAULT 0,
"ipTo" varchar(64) DEFAULT 0,
"expiredAt" integer DEFAULT 0,
"eventLevel" varchar(32),
"isDeleted" integer(1) DEFAULT 0,
"version" integer DEFAULT 0,
"nodeId" integer DEFAULT 0,
"serverId" integer DEFAULT 0
);
CREATE INDEX IF NOT EXISTS "ip_list_itemId"
ON "` + this.itemTableName + `" (
"itemId" ASC
);
CREATE INDEX IF NOT EXISTS "ip_list_expiredAt"
ON "` + this.itemTableName + `" (
"expiredAt" ASC
);
`)
if err != nil {
return err
}
_, err = db.Exec(`CREATE TABLE IF NOT EXISTS "` + this.versionTableName + `" (
"id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
"version" integer DEFAULT 0
);
`)
if err != nil {
return err
}
// 初始化SQL语句
this.deleteExpiredItemsStmt, err = this.db.Prepare(`DELETE FROM "` + this.itemTableName + `" WHERE "expiredAt">0 AND "expiredAt"<?`)
if err != nil {
return err
}
this.deleteItemStmt, err = this.db.Prepare(`DELETE FROM "` + this.itemTableName + `" WHERE "itemId"=?`)
if err != nil {
return err
}
this.insertItemStmt, err = this.db.Prepare(`INSERT INTO "` + this.itemTableName + `" ("listId", "listType", "isGlobal", "type", "itemId", "ipFrom", "ipTo", "expiredAt", "eventLevel", "isDeleted", "version", "nodeId", "serverId") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`)
if err != nil {
return err
}
this.selectItemsStmt, err = this.db.Prepare(`SELECT "listId", "listType", "isGlobal", "type", "itemId", "ipFrom", "ipTo", "expiredAt", "eventLevel", "isDeleted", "version", "nodeId", "serverId" FROM "` + this.itemTableName + `" WHERE isDeleted=0 ORDER BY "version" ASC, "itemId" ASC LIMIT ?, ?`)
if err != nil {
return err
}
this.selectMaxItemVersionStmt, err = this.db.Prepare(`SELECT "version" FROM "` + this.itemTableName + `" ORDER BY "id" DESC LIMIT 1`)
if err != nil {
return err
}
this.selectVersionStmt, err = this.db.Prepare(`SELECT "version" FROM "` + this.versionTableName + `" LIMIT 1`)
if err != nil {
return err
}
this.updateVersionStmt, err = this.db.Prepare(`REPLACE INTO "` + this.versionTableName + `" ("id", "version") VALUES (1, ?)`)
if err != nil {
return err
}
this.db = db
goman.New(func() {
events.OnClose(func() {
_ = this.Close()
this.cleanTicker.Stop()
})
idles.RunTicker(this.cleanTicker, func() {
deleteErr := this.DeleteExpiredItems()
if deleteErr != nil {
remotelogs.Error("IP_LIST_DB", "clean expired items failed: "+deleteErr.Error())
}
})
})
return nil
}
// Name 数据库名称代号
func (this *SQLiteIPList) Name() string {
return "sqlite"
}
// DeleteExpiredItems 删除过期的条目
func (this *SQLiteIPList) DeleteExpiredItems() error {
if this.isClosed {
return nil
}
_, err := this.deleteExpiredItemsStmt.Exec(time.Now().Unix() - 7*86400)
return err
}
func (this *SQLiteIPList) AddItem(item *pb.IPItem) error {
if this.isClosed {
return nil
}
_, err := this.deleteItemStmt.Exec(item.Id)
if err != nil {
return err
}
// 如果是删除,则不再创建新记录
if item.IsDeleted {
return this.UpdateMaxVersion(item.Version)
}
_, err = this.insertItemStmt.Exec(item.ListId, item.ListType, item.IsGlobal, item.Type, item.Id, item.IpFrom, item.IpTo, item.ExpiredAt, item.EventLevel, item.IsDeleted, item.Version, item.NodeId, item.ServerId)
if err != nil {
return err
}
return this.UpdateMaxVersion(item.Version)
}
func (this *SQLiteIPList) ReadItems(offset int64, size int64) (items []*pb.IPItem, goNext bool, err error) {
if this.isClosed {
return
}
rows, err := this.selectItemsStmt.Query(offset, size)
if err != nil {
return nil, false, err
}
defer func() {
_ = rows.Close()
}()
for rows.Next() {
// "listId", "listType", "isGlobal", "type", "itemId", "ipFrom", "ipTo", "expiredAt", "eventLevel", "isDeleted", "version", "nodeId", "serverId"
var pbItem = &pb.IPItem{}
err = rows.Scan(&pbItem.ListId, &pbItem.ListType, &pbItem.IsGlobal, &pbItem.Type, &pbItem.Id, &pbItem.IpFrom, &pbItem.IpTo, &pbItem.ExpiredAt, &pbItem.EventLevel, &pbItem.IsDeleted, &pbItem.Version, &pbItem.NodeId, &pbItem.ServerId)
if err != nil {
return nil, false, err
}
items = append(items, pbItem)
}
goNext = int64(len(items)) == size
return
}
// ReadMaxVersion 读取当前最大版本号
func (this *SQLiteIPList) ReadMaxVersion() (int64, error) {
if this.isClosed {
return 0, nil
}
// from version table
{
var row = this.selectVersionStmt.QueryRow()
if row == nil {
return 0, nil
}
var version int64
err := row.Scan(&version)
if err == nil {
return version, nil
}
}
// from items table
{
var row = this.selectMaxItemVersionStmt.QueryRow()
if row == nil {
return 0, nil
}
var version int64
err := row.Scan(&version)
if err != nil {
return 0, nil
}
return version, nil
}
}
// UpdateMaxVersion 修改版本号
func (this *SQLiteIPList) UpdateMaxVersion(version int64) error {
if this.isClosed {
return nil
}
_, err := this.updateVersionStmt.Exec(version)
return err
}
func (this *SQLiteIPList) Close() error {
this.isClosed = true
if this.db != nil {
for _, stmt := range []*dbs.Stmt{
this.deleteExpiredItemsStmt,
this.deleteItemStmt,
this.insertItemStmt,
this.selectItemsStmt,
this.selectMaxItemVersionStmt, // ipItems table
this.selectVersionStmt, // versions table
this.updateVersionStmt,
} {
if stmt != nil {
_ = stmt.Close()
}
}
return this.db.Close()
}
return nil
}