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sisyphus/database.go

106 lines
2.6 KiB
Go

package sisyphus
import (
"path/filepath"
log "github.com/sirupsen/logrus"
"github.com/boltdb/bolt"
)
// openDB creates and opens a new database and its respective buckets (if required)
func openDB(m Maildir) (db *bolt.DB, err error) {
log.WithFields(log.Fields{
"dir": string(m),
}).Info("Loading database")
// Open the sisyphus.db data file in your current directory.
// It will be created if it doesn't exist.
db, err = bolt.Open(filepath.Join(string(m), "sisyphus.db"), 0600, nil)
if err != nil {
return db, err
}
// Create DB bucket for the map of processed e-mail IDs
err = db.Update(func(tx *bolt.Tx) error {
_, err = tx.CreateBucketIfNotExists([]byte("Statistics"))
return err
})
if err != nil {
return db, err
}
// Create DB bucket for word lists
err = db.Update(func(tx *bolt.Tx) error {
_, err = tx.CreateBucketIfNotExists([]byte("Wordlists"))
return err
})
if err != nil {
return db, err
}
// Create DB bucket for Junk inside bucket Wordlists
err = db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte("Wordlists"))
_, err = b.CreateBucketIfNotExists([]byte("Junk"))
return err
})
if err != nil {
return db, err
}
// Create DB bucket for Good inside bucket Wordlists
err = db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte("Wordlists"))
_, err = b.CreateBucketIfNotExists([]byte("Good"))
return err
})
return db, err
}
// LoadDatabases loads all databases from a given slice of Maildirs
func LoadDatabases(d []Maildir) (databases map[Maildir]*bolt.DB, err error) {
databases = make(map[Maildir]*bolt.DB)
for _, val := range d {
databases[val], err = openDB(val)
if err != nil {
return databases, err
}
}
log.Info("All databases loaded")
return databases, nil
}
// LoadBackupDatabases loads all backup databases from a given slice of Maildirs
func LoadBackupDatabases(d []Maildir) (databases map[Maildir]*bolt.DB, err error) {
databases = make(map[Maildir]*bolt.DB)
for _, val := range d {
databases[val], err = bolt.Open(filepath.Join(string(val), "sisyphus.db.backup"), 0600, nil)
if err != nil {
return databases, err
}
}
log.Info("All databases loaded")
return databases, nil
}
// CloseDatabases closes all databases from a given slice of Maildirs
func CloseDatabases(databases map[Maildir]*bolt.DB) {
for key, val := range databases {
err := val.Close()
if err != nil {
log.WithFields(log.Fields{
"db": filepath.Join(string(key), "sisyphus.db"),
}).Error("Unable to close database")
}
log.WithFields(log.Fields{
"maildir": string(key),
}).Info("Database closed")
}
}