114 lines
2.4 KiB
Go
114 lines
2.4 KiB
Go
package store
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import (
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"fmt"
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"gitea.benny.dog/torjus/ezshare/pb"
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"github.com/google/uuid"
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bolt "go.etcd.io/bbolt"
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"google.golang.org/protobuf/proto"
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)
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var _ FileStore = &BoltStore{}
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type BoltStore struct {
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db *bolt.DB
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}
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var bktKey = []byte("files")
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func NewBoltStore(path string) (*BoltStore, error) {
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s := &BoltStore{}
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db, err := bolt.Open(path, 0660, &bolt.Options{})
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if err != nil {
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return nil, fmt.Errorf("unable to open store: %w", err)
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}
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s.db = db
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err = db.Update(func(t *bolt.Tx) error {
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if _, err := t.CreateBucketIfNotExists(bktKey); err != nil {
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return err
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}
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return nil
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})
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if err != nil {
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return nil, fmt.Errorf("unable to create bucket: %w", err)
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}
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return s, nil
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}
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func (s *BoltStore) Close() error {
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return s.db.Close()
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}
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func (s *BoltStore) GetFile(id string) (*pb.File, error) {
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var file pb.File
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var data []byte
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if err := s.db.View(func(t *bolt.Tx) error {
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bkt := t.Bucket(bktKey)
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data = bkt.Get([]byte(id))
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return nil
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}); err != nil {
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return nil, fmt.Errorf("error getting file: %w", err)
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}
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if data == nil {
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return nil, ErrNoSuchFile
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}
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err := proto.Unmarshal(data, &file)
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if err != nil {
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return nil, fmt.Errorf("unable to unmarshal file: %w", err)
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}
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return &file, nil
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}
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func (s *BoltStore) StoreFile(file *pb.File) (string, error) {
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file.FileId = uuid.Must(uuid.NewRandom()).String()
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data, err := proto.Marshal(file)
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if err != nil {
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return "", fmt.Errorf("unable to marshal file: %w", err)
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}
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err = s.db.Update(func(t *bolt.Tx) error {
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bkt := t.Bucket(bktKey)
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return bkt.Put([]byte(file.FileId), data)
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})
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if err != nil {
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return "", fmt.Errorf("unable to store file: %w", err)
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}
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return file.FileId, nil
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}
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func (s *BoltStore) DeleteFile(id string) error {
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return s.db.Update(func(t *bolt.Tx) error {
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bkt := t.Bucket(bktKey)
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data := bkt.Get([]byte(id))
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if data == nil {
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return ErrNoSuchFile
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}
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return bkt.Delete([]byte(id))
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})
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}
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func (s *BoltStore) ListFiles() ([]*pb.ListFilesResponse_ListFileInfo, error) {
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var response []*pb.ListFilesResponse_ListFileInfo
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err := s.db.View(func(t *bolt.Tx) error {
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bkt := t.Bucket(bktKey)
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return bkt.ForEach(func(k, v []byte) error {
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var f pb.File
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err := proto.Unmarshal(v, &f)
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if err != nil {
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return err
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}
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response = append(response, &pb.ListFilesResponse_ListFileInfo{FileId: f.FileId, Metadata: f.Metadata})
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return nil
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})
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})
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if err != nil {
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return nil, err
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}
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return response, nil
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}
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