storj/satellite/metabase/delete.go

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// Copyright (C) 2020 Storj Labs, Inc.
// See LICENSE for copying information.
package metabase
import (
"bytes"
"context"
"sort"
"github.com/zeebo/errs"
"storj.io/common/storj"
"storj.io/private/dbutil"
"storj.io/private/dbutil/pgutil"
"storj.io/private/tagsql"
)
// DeleteObjectExactVersion contains arguments necessary for deleting an exact version of object.
type DeleteObjectExactVersion struct {
Version Version
ObjectLocation
}
// Verify delete object fields.
func (obj *DeleteObjectExactVersion) Verify() error {
if err := obj.ObjectLocation.Verify(); err != nil {
return err
}
if obj.Version <= 0 {
return ErrInvalidRequest.New("Version invalid: %v", obj.Version)
}
return nil
}
// DeleteObjectResult result of deleting object.
type DeleteObjectResult struct {
Objects []Object
Segments []DeletedSegmentInfo
}
// DeletedSegmentInfo info about deleted segment.
type DeletedSegmentInfo struct {
RootPieceID storj.PieceID
Pieces Pieces
}
// DeleteObjectAnyStatusAllVersions contains arguments necessary for deleting all object versions.
type DeleteObjectAnyStatusAllVersions struct {
ObjectLocation
}
// DeleteObjectsAllVersions contains arguments necessary for deleting all versions of multiple objects from the same bucket.
type DeleteObjectsAllVersions struct {
Locations []ObjectLocation
}
// Verify delete objects fields.
func (delete *DeleteObjectsAllVersions) Verify() error {
if len(delete.Locations) == 0 {
return nil
}
if len(delete.Locations) > 1000 {
return ErrInvalidRequest.New("cannot delete more than 1000 objects in a single request")
}
var errGroup errs.Group
for _, location := range delete.Locations {
errGroup.Add(location.Verify())
}
err := errGroup.Err()
if err != nil {
return err
}
// Verify if all locations are in the same bucket
first := delete.Locations[0]
for _, item := range delete.Locations[1:] {
if first.ProjectID != item.ProjectID || first.BucketName != item.BucketName {
return ErrInvalidRequest.New("all objects must be in the same bucket")
}
}
return nil
}
// DeleteObjectLatestVersion contains arguments necessary for deleting latest object version.
type DeleteObjectLatestVersion struct {
ObjectLocation
}
// DeleteObjectExactVersion deletes an exact object version.
func (db *DB) DeleteObjectExactVersion(ctx context.Context, opts DeleteObjectExactVersion) (result DeleteObjectResult, err error) {
defer mon.Task()(&ctx)(&err)
if err := opts.Verify(); err != nil {
return DeleteObjectResult{}, err
}
err = withRows(db.db.QueryContext(ctx, `
WITH deleted_objects AS (
DELETE FROM objects
WHERE
project_id = $1 AND
bucket_name = $2 AND
object_key = $3 AND
version = $4 AND
status = `+committedStatus+`
RETURNING
version, stream_id,
created_at, expires_at,
status, segment_count,
encrypted_metadata_nonce, encrypted_metadata, encrypted_metadata_encrypted_key,
total_plain_size, total_encrypted_size, fixed_segment_size,
encryption
), deleted_segments AS (
DELETE FROM segments
WHERE segments.stream_id in (SELECT deleted_objects.stream_id FROM deleted_objects)
RETURNING segments.stream_id,segments.root_piece_id, segments.remote_alias_pieces
)
SELECT
deleted_objects.version, deleted_objects.stream_id,
deleted_objects.created_at, deleted_objects.expires_at,
deleted_objects.status, deleted_objects.segment_count,
deleted_objects.encrypted_metadata_nonce, deleted_objects.encrypted_metadata, deleted_objects.encrypted_metadata_encrypted_key,
deleted_objects.total_plain_size, deleted_objects.total_encrypted_size, deleted_objects.fixed_segment_size,
deleted_objects.encryption,
deleted_segments.root_piece_id, deleted_segments.remote_alias_pieces
FROM deleted_objects
LEFT JOIN deleted_segments ON deleted_objects.stream_id = deleted_segments.stream_id
`, opts.ProjectID, []byte(opts.BucketName), opts.ObjectKey, opts.Version))(func(rows tagsql.Rows) error {
result.Objects, result.Segments, err = db.scanObjectDeletion(ctx, opts.ObjectLocation, rows)
return err
})
if err != nil {
return DeleteObjectResult{}, err
}
if len(result.Objects) == 0 {
return DeleteObjectResult{}, storj.ErrObjectNotFound.Wrap(Error.New("no rows deleted"))
}
mon.Meter("object_delete").Mark(len(result.Objects))
mon.Meter("segment_delete").Mark(len(result.Segments))
return result, nil
}
// DeletePendingObject contains arguments necessary for deleting a pending object.
type DeletePendingObject struct {
ObjectStream
}
// Verify verifies delete pending object fields validity.
func (opts *DeletePendingObject) Verify() error {
if err := opts.ObjectStream.Verify(); err != nil {
return err
}
return nil
}
// DeletePendingObject deletes a pending object with specified version and streamID.
func (db *DB) DeletePendingObject(ctx context.Context, opts DeletePendingObject) (result DeleteObjectResult, err error) {
defer mon.Task()(&ctx)(&err)
if err := opts.Verify(); err != nil {
return DeleteObjectResult{}, err
}
err = withRows(db.db.QueryContext(ctx, `
WITH deleted_objects AS (
DELETE FROM objects
WHERE
project_id = $1 AND
bucket_name = $2 AND
object_key = $3 AND
version = $4 AND
stream_id = $5 AND
status = `+pendingStatus+`
RETURNING
version, stream_id,
created_at, expires_at,
status, segment_count,
encrypted_metadata_nonce, encrypted_metadata, encrypted_metadata_encrypted_key,
total_plain_size, total_encrypted_size, fixed_segment_size,
encryption
), deleted_segments AS (
DELETE FROM segments
WHERE segments.stream_id in (SELECT deleted_objects.stream_id FROM deleted_objects)
RETURNING segments.stream_id,segments.root_piece_id, segments.remote_alias_pieces
)
SELECT
deleted_objects.version, deleted_objects.stream_id,
deleted_objects.created_at, deleted_objects.expires_at,
deleted_objects.status, deleted_objects.segment_count,
deleted_objects.encrypted_metadata_nonce, deleted_objects.encrypted_metadata, deleted_objects.encrypted_metadata_encrypted_key,
deleted_objects.total_plain_size, deleted_objects.total_encrypted_size, deleted_objects.fixed_segment_size,
deleted_objects.encryption,
deleted_segments.root_piece_id, deleted_segments.remote_alias_pieces
FROM deleted_objects
LEFT JOIN deleted_segments ON deleted_objects.stream_id = deleted_segments.stream_id
`, opts.ProjectID, []byte(opts.BucketName), opts.ObjectKey, opts.Version, opts.StreamID))(func(rows tagsql.Rows) error {
result.Objects, result.Segments, err = db.scanObjectDeletion(ctx, opts.Location(), rows)
return err
})
if err != nil {
return DeleteObjectResult{}, err
}
if len(result.Objects) == 0 {
return DeleteObjectResult{}, storj.ErrObjectNotFound.Wrap(Error.New("no rows deleted"))
}
mon.Meter("object_delete").Mark(len(result.Objects))
mon.Meter("segment_delete").Mark(len(result.Segments))
return result, nil
}
// DeleteObjectLatestVersion deletes latest object version.
func (db *DB) DeleteObjectLatestVersion(ctx context.Context, opts DeleteObjectLatestVersion) (result DeleteObjectResult, err error) {
defer mon.Task()(&ctx)(&err)
if err := opts.Verify(); err != nil {
return DeleteObjectResult{}, err
}
var query string
switch db.impl {
case dbutil.Cockroach:
query = `
WITH deleted_objects AS (
DELETE FROM objects
WHERE
project_id = $1 AND
bucket_name = $2 AND
object_key = $3 AND
status = ` + committedStatus + `
ORDER BY version DESC
LIMIT 1
RETURNING
version, stream_id,
created_at, expires_at,
status, segment_count,
encrypted_metadata_nonce, encrypted_metadata, encrypted_metadata_encrypted_key,
total_plain_size, total_encrypted_size, fixed_segment_size,
encryption
), deleted_segments AS (
DELETE FROM segments
WHERE segments.stream_id in (SELECT deleted_objects.stream_id FROM deleted_objects)
RETURNING segments.stream_id,segments.root_piece_id, segments.remote_alias_pieces
)
SELECT
deleted_objects.version, deleted_objects.stream_id,
deleted_objects.created_at, deleted_objects.expires_at,
deleted_objects.status, deleted_objects.segment_count,
deleted_objects.encrypted_metadata_nonce, deleted_objects.encrypted_metadata, deleted_objects.encrypted_metadata_encrypted_key,
deleted_objects.total_plain_size, deleted_objects.total_encrypted_size, deleted_objects.fixed_segment_size,
deleted_objects.encryption,
deleted_segments.root_piece_id, deleted_segments.remote_alias_pieces
FROM deleted_objects
LEFT JOIN deleted_segments ON deleted_objects.stream_id = deleted_segments.stream_id
`
case dbutil.Postgres:
query = `
WITH deleted_objects AS (
DELETE FROM objects
WHERE
project_id = $1 AND
bucket_name = $2 AND
object_key = $3 AND
version IN (
SELECT version FROM objects
WHERE
project_id = $1 AND
bucket_name = $2 AND
object_key = $3 AND
status = ` + committedStatus + `
ORDER BY version DESC LIMIT 1
) AND
status = ` + committedStatus + `
RETURNING
version, stream_id,
created_at, expires_at,
status, segment_count,
encrypted_metadata_nonce, encrypted_metadata, encrypted_metadata_encrypted_key,
total_plain_size, total_encrypted_size, fixed_segment_size,
encryption
), deleted_segments AS (
DELETE FROM segments
WHERE segments.stream_id in (SELECT deleted_objects.stream_id FROM deleted_objects)
RETURNING segments.stream_id,segments.root_piece_id, segments.remote_alias_pieces
)
SELECT
deleted_objects.version, deleted_objects.stream_id,
deleted_objects.created_at, deleted_objects.expires_at,
deleted_objects.status, deleted_objects.segment_count,
deleted_objects.encrypted_metadata_nonce, deleted_objects.encrypted_metadata, deleted_objects.encrypted_metadata_encrypted_key,
deleted_objects.total_plain_size, deleted_objects.total_encrypted_size, deleted_objects.fixed_segment_size,
deleted_objects.encryption,
deleted_segments.root_piece_id, deleted_segments.remote_alias_pieces
FROM deleted_objects
LEFT JOIN deleted_segments ON deleted_objects.stream_id = deleted_segments.stream_id
`
default:
return DeleteObjectResult{}, Error.New("unhandled database: %v", db.impl)
}
err = withRows(db.db.QueryContext(ctx, query, opts.ProjectID, []byte(opts.BucketName), opts.ObjectKey))(func(rows tagsql.Rows) error {
result.Objects, result.Segments, err = db.scanObjectDeletion(ctx, opts.ObjectLocation, rows)
return err
})
if err != nil {
return DeleteObjectResult{}, err
}
if len(result.Objects) == 0 {
return DeleteObjectResult{}, storj.ErrObjectNotFound.Wrap(Error.New("no rows deleted"))
}
mon.Meter("object_delete").Mark(len(result.Objects))
mon.Meter("segment_delete").Mark(len(result.Segments))
return result, nil
}
// DeleteObjectAnyStatusAllVersions deletes all object versions.
func (db *DB) DeleteObjectAnyStatusAllVersions(ctx context.Context, opts DeleteObjectAnyStatusAllVersions) (result DeleteObjectResult, err error) {
defer mon.Task()(&ctx)(&err)
if err := opts.Verify(); err != nil {
return DeleteObjectResult{}, err
}
err = withRows(db.db.QueryContext(ctx, `
WITH deleted_objects AS (
DELETE FROM objects
WHERE
project_id = $1 AND
bucket_name = $2 AND
object_key = $3
RETURNING
version, stream_id,
created_at, expires_at,
status, segment_count,
encrypted_metadata_nonce, encrypted_metadata, encrypted_metadata_encrypted_key,
total_plain_size, total_encrypted_size, fixed_segment_size,
encryption
), deleted_segments AS (
DELETE FROM segments
WHERE segments.stream_id in (SELECT deleted_objects.stream_id FROM deleted_objects)
RETURNING segments.stream_id,segments.root_piece_id, segments.remote_alias_pieces
)
SELECT
deleted_objects.version, deleted_objects.stream_id,
deleted_objects.created_at, deleted_objects.expires_at,
deleted_objects.status, deleted_objects.segment_count,
deleted_objects.encrypted_metadata_nonce, deleted_objects.encrypted_metadata, deleted_objects.encrypted_metadata_encrypted_key,
deleted_objects.total_plain_size, deleted_objects.total_encrypted_size, deleted_objects.fixed_segment_size,
deleted_objects.encryption,
deleted_segments.root_piece_id, deleted_segments.remote_alias_pieces
FROM deleted_objects
LEFT JOIN deleted_segments ON deleted_objects.stream_id = deleted_segments.stream_id
`, opts.ProjectID, []byte(opts.BucketName), opts.ObjectKey))(func(rows tagsql.Rows) error {
result.Objects, result.Segments, err = db.scanObjectDeletion(ctx, opts.ObjectLocation, rows)
return err
})
if err != nil {
return DeleteObjectResult{}, err
}
if len(result.Objects) == 0 {
return DeleteObjectResult{}, storj.ErrObjectNotFound.Wrap(Error.New("no rows deleted"))
}
mon.Meter("object_delete").Mark(len(result.Objects))
mon.Meter("segment_delete").Mark(len(result.Segments))
return result, nil
}
// DeleteObjectsAllVersions deletes all versions of multiple objects from the same bucket.
func (db *DB) DeleteObjectsAllVersions(ctx context.Context, opts DeleteObjectsAllVersions) (result DeleteObjectResult, err error) {
defer mon.Task()(&ctx)(&err)
if len(opts.Locations) == 0 {
// nothing to delete, no error
return DeleteObjectResult{}, nil
}
if err := opts.Verify(); err != nil {
return DeleteObjectResult{}, err
}
// It is aleady verified that all object locations are in the same bucket
projectID := opts.Locations[0].ProjectID
bucketName := opts.Locations[0].BucketName
objectKeys := make([][]byte, len(opts.Locations))
for i := range opts.Locations {
objectKeys[i] = []byte(opts.Locations[i].ObjectKey)
}
// Sorting the object keys just in case.
// TODO: Check if this is really necessary for the SQL query.
sort.Slice(objectKeys, func(i, j int) bool {
return bytes.Compare(objectKeys[i], objectKeys[j]) < 0
})
err = withRows(db.db.QueryContext(ctx, `
WITH deleted_objects AS (
DELETE FROM objects
WHERE
project_id = $1 AND
bucket_name = $2 AND
object_key = ANY ($3) AND
status = `+committedStatus+`
RETURNING
project_id, bucket_name,
object_key, version, stream_id,
created_at, expires_at,
status, segment_count,
encrypted_metadata_nonce, encrypted_metadata, encrypted_metadata_encrypted_key,
total_plain_size, total_encrypted_size, fixed_segment_size,
encryption
), deleted_segments AS (
DELETE FROM segments
WHERE segments.stream_id in (SELECT deleted_objects.stream_id FROM deleted_objects)
RETURNING segments.stream_id,segments.root_piece_id, segments.remote_alias_pieces
)
SELECT
deleted_objects.project_id, deleted_objects.bucket_name,
deleted_objects.object_key,deleted_objects.version, deleted_objects.stream_id,
deleted_objects.created_at, deleted_objects.expires_at,
deleted_objects.status, deleted_objects.segment_count,
deleted_objects.encrypted_metadata_nonce, deleted_objects.encrypted_metadata, deleted_objects.encrypted_metadata_encrypted_key,
deleted_objects.total_plain_size, deleted_objects.total_encrypted_size, deleted_objects.fixed_segment_size,
deleted_objects.encryption,
deleted_segments.root_piece_id, deleted_segments.remote_alias_pieces
FROM deleted_objects
LEFT JOIN deleted_segments ON deleted_objects.stream_id = deleted_segments.stream_id
`, projectID, []byte(bucketName), pgutil.ByteaArray(objectKeys)))(func(rows tagsql.Rows) error {
result.Objects, result.Segments, err = db.scanMultipleObjectsDeletion(ctx, rows)
return err
})
if err != nil {
return DeleteObjectResult{}, err
}
mon.Meter("object_delete").Mark(len(result.Objects))
mon.Meter("segment_delete").Mark(len(result.Segments))
return result, nil
}
func (db *DB) scanObjectDeletion(ctx context.Context, location ObjectLocation, rows tagsql.Rows) (objects []Object, segments []DeletedSegmentInfo, err error) {
defer mon.Task()(&ctx)(&err)
defer func() { err = errs.Combine(err, rows.Close()) }()
objects = make([]Object, 0, 10)
segments = make([]DeletedSegmentInfo, 0, 10)
var rootPieceID *storj.PieceID
var object Object
var segment DeletedSegmentInfo
var aliasPieces AliasPieces
for rows.Next() {
object.ProjectID = location.ProjectID
object.BucketName = location.BucketName
object.ObjectKey = location.ObjectKey
err = rows.Scan(&object.Version, &object.StreamID,
&object.CreatedAt, &object.ExpiresAt,
&object.Status, &object.SegmentCount,
&object.EncryptedMetadataNonce, &object.EncryptedMetadata, &object.EncryptedMetadataEncryptedKey,
&object.TotalPlainSize, &object.TotalEncryptedSize, &object.FixedSegmentSize,
encryptionParameters{&object.Encryption}, &rootPieceID, &aliasPieces)
if err != nil {
return nil, nil, Error.New("unable to delete object: %w", err)
}
if len(objects) == 0 || objects[len(objects)-1].StreamID != object.StreamID {
objects = append(objects, object)
}
if rootPieceID != nil {
segment.RootPieceID = *rootPieceID
segment.Pieces, err = db.aliasCache.ConvertAliasesToPieces(ctx, aliasPieces)
if err != nil {
return nil, nil, Error.Wrap(err)
}
if len(segment.Pieces) > 0 {
segments = append(segments, segment)
}
}
}
if err := rows.Err(); err != nil {
return nil, nil, Error.New("unable to delete object: %w", err)
}
if len(segments) == 0 {
return objects, nil, nil
}
return objects, segments, nil
}
func (db *DB) scanMultipleObjectsDeletion(ctx context.Context, rows tagsql.Rows) (objects []Object, segments []DeletedSegmentInfo, err error) {
defer mon.Task()(&ctx)(&err)
defer func() { err = errs.Combine(err, rows.Close()) }()
objects = make([]Object, 0, 10)
segments = make([]DeletedSegmentInfo, 0, 10)
var rootPieceID *storj.PieceID
var object Object
var segment DeletedSegmentInfo
var aliasPieces AliasPieces
for rows.Next() {
err = rows.Scan(&object.ProjectID, &object.BucketName,
&object.ObjectKey, &object.Version, &object.StreamID,
&object.CreatedAt, &object.ExpiresAt,
&object.Status, &object.SegmentCount,
&object.EncryptedMetadataNonce, &object.EncryptedMetadata, &object.EncryptedMetadataEncryptedKey,
&object.TotalPlainSize, &object.TotalEncryptedSize, &object.FixedSegmentSize,
encryptionParameters{&object.Encryption}, &rootPieceID, &aliasPieces)
if err != nil {
return nil, nil, Error.New("unable to delete object: %w", err)
}
if len(objects) == 0 || objects[len(objects)-1].StreamID != object.StreamID {
objects = append(objects, object)
}
if rootPieceID != nil {
segment.RootPieceID = *rootPieceID
segment.Pieces, err = db.aliasCache.ConvertAliasesToPieces(ctx, aliasPieces)
if err != nil {
return nil, nil, Error.Wrap(err)
}
if len(segment.Pieces) > 0 {
segments = append(segments, segment)
}
}
}
if err := rows.Err(); err != nil {
return nil, nil, Error.New("unable to delete object: %w", err)
}
if len(objects) == 0 {
objects = nil
}
if len(segments) == 0 {
return objects, nil, nil
}
return objects, segments, nil
}