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object_integrity.go
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object_integrity.go
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package sqldb
import (
"encoding/hex"
"errors"
"fmt"
"github.com/go-sql-driver/mysql"
"gorm.io/gorm"
corespdb "github.com/bnb-chain/greenfield-storage-provider/core/spdb"
"github.com/bnb-chain/greenfield-storage-provider/util"
)
// GetObjectIntegrity returns the integrity hash info
func (s *SpDBImpl) GetObjectIntegrity(objectID uint64) (*corespdb.IntegrityMeta, error) {
queryReturn := &IntegrityMetaTable{}
result := s.db.Model(&IntegrityMetaTable{}).
Where("object_id = ?", objectID).
First(queryReturn)
if errors.Is(result.Error, gorm.ErrRecordNotFound) {
return nil, result.Error
}
if result.Error != nil {
return nil, fmt.Errorf("failed to query integrity meta record: %s", result.Error)
}
integrityChecksum, err := hex.DecodeString(queryReturn.IntegrityChecksum)
if err != nil {
return nil, err
}
signature, err := hex.DecodeString(queryReturn.Signature)
if err != nil {
return nil, err
}
meta := &corespdb.IntegrityMeta{
ObjectID: queryReturn.ObjectID,
IntegrityChecksum: integrityChecksum,
Signature: signature,
}
meta.PieceChecksumList, err = util.StringToBytesSlice(queryReturn.PieceChecksumList)
if err != nil {
return nil, err
}
return meta, nil
}
func MysqlErrCode(err error) int {
mysqlErr, ok := err.(*mysql.MySQLError)
if !ok {
return 0
}
return int(mysqlErr.Number)
}
var (
ErrDuplicateEntryCode = 1062
)
// SetObjectIntegrity puts(overwrites) integrity hash info to db
func (s *SpDBImpl) SetObjectIntegrity(meta *corespdb.IntegrityMeta) error {
insertIntegrityMetaRecord := &IntegrityMetaTable{
ObjectID: meta.ObjectID,
PieceChecksumList: util.BytesSliceToString(meta.PieceChecksumList),
IntegrityChecksum: hex.EncodeToString(meta.IntegrityChecksum),
Signature: hex.EncodeToString(meta.Signature),
}
result := s.db.Create(insertIntegrityMetaRecord)
if result.Error != nil && MysqlErrCode(result.Error) == ErrDuplicateEntryCode {
return nil
}
if result.Error != nil || result.RowsAffected != 1 {
return fmt.Errorf("failed to insert integrity meta record: %s", result.Error)
}
return nil
}
// DeleteObjectIntegrity deletes integrity meta info.
func (s *SpDBImpl) DeleteObjectIntegrity(objectID uint64) error {
return s.db.Delete(&IntegrityMetaTable{
ObjectID: objectID, // should be the primary key
}).Error
}
// AppendObjectChecksumIntegrity append checksum
func (s *SpDBImpl) AppendObjectChecksumIntegrity(objectID uint64, checksum []byte) error {
integrityMeta, err := s.GetObjectIntegrity(objectID)
var checksums [][]byte
var integrity []byte
var signature []byte
if err == gorm.ErrRecordNotFound {
integrityMetaNew := &corespdb.IntegrityMeta{
ObjectID: objectID,
PieceChecksumList: append(checksums, checksum),
IntegrityChecksum: integrity,
Signature: signature,
}
err = s.SetObjectIntegrity(integrityMetaNew)
if err != nil {
return err
}
} else if err != nil {
return err
} else {
newChecksums := append(integrityMeta.PieceChecksumList, checksum)
integrityMeta.PieceChecksumList = newChecksums
s.DeleteObjectIntegrity(objectID)
err = s.SetObjectIntegrity(integrityMeta)
if err != nil {
return err
}
}
return nil
}
// GetReplicatePieceChecksum gets replicate piece checksum.
func (s *SpDBImpl) GetReplicatePieceChecksum(objectID uint64, replicateIdx uint32, pieceIdx uint32) ([]byte, error) {
var (
err error
queryReturn PieceHashTable
pieceChecksum []byte
)
if err = s.db.Model(&PieceHashTable{}).
Where("object_id = ? and replicate_index = ? and piece_index = ?", objectID, replicateIdx, pieceIdx).
First(&queryReturn).Error; err != nil {
return nil, err
}
if pieceChecksum, err = hex.DecodeString(queryReturn.PieceChecksum); err != nil {
return nil, err
}
return pieceChecksum, nil
}
// SetReplicatePieceChecksum sets replicate checksum.
func (s *SpDBImpl) SetReplicatePieceChecksum(objectID uint64, replicateIdx uint32, pieceIdx uint32, checksum []byte) error {
var (
result *gorm.DB
insertPieceHash *PieceHashTable
)
insertPieceHash = &PieceHashTable{
ObjectID: objectID,
ReplicateIndex: replicateIdx,
PieceIndex: pieceIdx,
PieceChecksum: hex.EncodeToString(checksum),
}
result = s.db.Create(insertPieceHash)
if result.Error != nil && MysqlErrCode(result.Error) == ErrDuplicateEntryCode {
return nil
}
if result.Error != nil || result.RowsAffected != 1 {
return fmt.Errorf("failed to insert piece hash record: %s", result.Error)
}
return nil
}
// DeleteReplicatePieceChecksum deletes piece checksum.
func (s *SpDBImpl) DeleteReplicatePieceChecksum(objectID uint64, replicateIdx uint32, pieceIdx uint32) error {
return s.db.Delete(&PieceHashTable{
ObjectID: objectID, // should be the primary key
ReplicateIndex: replicateIdx, // should be the primary key
PieceIndex: pieceIdx, // should be the primary key
}).Error
}
// GetAllReplicatePieceChecksum gets all the piece checksums.
func (s *SpDBImpl) GetAllReplicatePieceChecksum(objectID uint64, replicateIdx uint32, pieceCount uint32) ([][]byte, error) {
var (
pieceIndex uint32
err error
pieceChecksum []byte
pieceChecksumList = make([][]byte, 0)
)
for pieceIndex < pieceCount {
pieceChecksum, err = s.GetReplicatePieceChecksum(objectID, replicateIdx, pieceIndex)
if err != nil {
return nil, err
}
pieceChecksumList = append(pieceChecksumList, pieceChecksum)
pieceIndex++
}
return pieceChecksumList, nil
}
// DeleteAllReplicatePieceChecksum deletes all the piece checksum.
func (s *SpDBImpl) DeleteAllReplicatePieceChecksum(objectID uint64, replicateIdx uint32, pieceCount uint32) error {
var (
pieceIndex uint32
err error
)
for pieceIndex < pieceCount {
err = s.DeleteReplicatePieceChecksum(objectID, replicateIdx, pieceIndex)
if err != nil {
return err
}
pieceIndex++
}
return nil
}