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package svc // import "github.com/getwtxt/getwtxt/svc" import ( "database/sql" "log" "net" "strings" "time" "github.com/getwtxt/registry" "github.com/syndtr/goleveldb/leveldb" ) // Pull DB data into cache, if available. func initDatabase() { var db dbase var err error confObj.Mu.RLock() switch confObj.DBType { case "leveldb": var lvl *leveldb.DB lvl, err = leveldb.OpenFile(confObj.DBPath, nil) db = &dbLevel{db: lvl} case "sqlite": var lite *sql.DB db = &dbSqlite{db: lite} } confObj.Mu.RUnlock() if err != nil { log.Fatalf("%v\n", err.Error()) } dbChan <- db pullDatabase() } func checkDBtime() bool { confObj.Mu.RLock() answer := time.Since(confObj.LastPush) > confObj.DBInterval confObj.Mu.RUnlock() return answer } // Pushes the registry's cache data to a local // database for safe keeping. func pushDatabase() error { db := <-dbChan dbChan <- db return db.push() } func pullDatabase() { db := <-dbChan dbChan <- db db.pull() } func (lvl dbLevel) push() error { twtxtCache.Mu.RLock() var dbBasket = &leveldb.Batch{} for k, v := range twtxtCache.Users { dbBasket.Put([]byte(k+"*Nick"), []byte(v.Nick)) dbBasket.Put([]byte(k+"*URL"), []byte(v.URL)) dbBasket.Put([]byte(k+"*IP"), []byte(v.IP.String())) dbBasket.Put([]byte(k+"*Date"), []byte(v.Date)) for i, e := range v.Status { rfc := i.Format(time.RFC3339) dbBasket.Put([]byte(k+"*Status*"+rfc), []byte(e)) } } twtxtCache.Mu.RUnlock() remoteRegistries.Mu.RLock() for k, v := range remoteRegistries.List { dbBasket.Put([]byte("remote*"+string(k)), []byte(v)) } remoteRegistries.Mu.RUnlock() if err := lvl.db.Write(dbBasket, nil); err != nil { return err } confObj.Mu.Lock() confObj.LastPush = time.Now() confObj.Mu.Unlock() return nil } func (lvl dbLevel) pull() { iter := lvl.db.NewIterator(nil, nil) for iter.Next() { key := string(iter.Key()) val := string(iter.Value()) split := strings.Split(key, "*") urls := split[0] field := split[1] if urls == "remote" { remoteRegistries.Mu.Lock() remoteRegistries.List = append(remoteRegistries.List, val) remoteRegistries.Mu.Unlock() continue } data := registry.NewUser() twtxtCache.Mu.RLock() if _, ok := twtxtCache.Users[urls]; ok { data = twtxtCache.Users[urls] } twtxtCache.Mu.RUnlock() switch field { case "IP": data.IP = net.ParseIP(val) case "Nick": data.Nick = val case "URL": data.URL = val case "Date": data.Date = val case "Status": thetime, err := time.Parse(time.RFC3339, split[2]) if err != nil { log.Printf("%v\n", err.Error()) } data.Status[thetime] = val } twtxtCache.Mu.Lock() twtxtCache.Users[urls] = data twtxtCache.Mu.Unlock() } remoteRegistries.Mu.Lock() remoteRegistries.List = dedupe(remoteRegistries.List) remoteRegistries.Mu.Unlock() iter.Release() err := iter.Error() if err != nil { log.Printf("Error while pulling DB into registry cache: %v\n", err.Error()) } } func (lite dbSqlite) push() error { return nil } func (lite dbSqlite) pull() { }


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