/
metainfo.go
1857 lines (1581 loc) · 61.4 KB
/
metainfo.go
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// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package metainfo
import (
"context"
"crypto/sha256"
"errors"
"fmt"
"time"
"github.com/spacemonkeygo/monkit/v3"
"github.com/zeebo/errs"
"go.uber.org/zap"
"storj.io/common/context2"
"storj.io/common/encryption"
"storj.io/common/macaroon"
"storj.io/common/memory"
"storj.io/common/pb"
"storj.io/common/rpc/rpcstatus"
"storj.io/common/signing"
"storj.io/common/storj"
"storj.io/common/uuid"
lrucache "storj.io/storj/pkg/cache"
"storj.io/storj/satellite/accounting"
"storj.io/storj/satellite/attribution"
"storj.io/storj/satellite/console"
"storj.io/storj/satellite/internalpb"
"storj.io/storj/satellite/metainfo/metabase"
"storj.io/storj/satellite/metainfo/objectdeletion"
"storj.io/storj/satellite/metainfo/piecedeletion"
"storj.io/storj/satellite/metainfo/pointerverification"
"storj.io/storj/satellite/orders"
"storj.io/storj/satellite/overlay"
"storj.io/storj/satellite/revocation"
"storj.io/storj/satellite/rewards"
"storj.io/uplink/private/eestream"
"storj.io/uplink/private/storage/meta"
)
const (
satIDExpiration = 48 * time.Hour
deleteObjectPiecesSuccessThreshold = 0.75
)
var (
mon = monkit.Package()
// Error general metainfo error.
Error = errs.Class("metainfo error")
// ErrNodeAlreadyExists pointer already has a piece for a node err.
ErrNodeAlreadyExists = errs.Class("metainfo error: node already exists")
)
// APIKeys is api keys store methods used by endpoint.
//
// architecture: Database
type APIKeys interface {
GetByHead(ctx context.Context, head []byte) (*console.APIKeyInfo, error)
}
// Endpoint metainfo endpoint.
//
// architecture: Endpoint
type Endpoint struct {
log *zap.Logger
metainfo *Service
deletePieces *piecedeletion.Service
deleteObjects *objectdeletion.Service
orders *orders.Service
overlay *overlay.Service
attributions attribution.DB
partners *rewards.PartnersService
pointerVerification *pointerverification.Service
projectUsage *accounting.Service
projects console.Projects
apiKeys APIKeys
satellite signing.Signer
limiterCache *lrucache.ExpiringLRU
encInlineSegmentSize int64 // max inline segment size + encryption overhead
revocations revocation.DB
defaultRS *pb.RedundancyScheme
config Config
}
// NewEndpoint creates new metainfo endpoint instance.
func NewEndpoint(log *zap.Logger, metainfo *Service, deletePieces *piecedeletion.Service,
orders *orders.Service, cache *overlay.Service, attributions attribution.DB,
partners *rewards.PartnersService, peerIdentities overlay.PeerIdentities,
apiKeys APIKeys, projectUsage *accounting.Service, projects console.Projects,
satellite signing.Signer, revocations revocation.DB, config Config) (*Endpoint, error) {
// TODO do something with too many params
encInlineSegmentSize, err := encryption.CalcEncryptedSize(config.MaxInlineSegmentSize.Int64(), storj.EncryptionParameters{
CipherSuite: storj.EncAESGCM,
BlockSize: 128, // intentionally low block size to allow maximum possible encryption overhead
})
if err != nil {
return nil, err
}
objectDeletion, err := objectdeletion.NewService(log, metainfo, config.ObjectDeletion)
if err != nil {
return nil, err
}
defaultRSScheme := &pb.RedundancyScheme{
Type: pb.RedundancyScheme_RS,
MinReq: int32(config.RS.Min),
RepairThreshold: int32(config.RS.Repair),
SuccessThreshold: int32(config.RS.Success),
Total: int32(config.RS.Total),
ErasureShareSize: config.RS.ErasureShareSize.Int32(),
}
return &Endpoint{
log: log,
metainfo: metainfo,
deletePieces: deletePieces,
deleteObjects: objectDeletion,
orders: orders,
overlay: cache,
attributions: attributions,
partners: partners,
pointerVerification: pointerverification.NewService(peerIdentities),
apiKeys: apiKeys,
projectUsage: projectUsage,
projects: projects,
satellite: satellite,
limiterCache: lrucache.New(lrucache.Options{
Capacity: config.RateLimiter.CacheCapacity,
Expiration: config.RateLimiter.CacheExpiration,
}),
encInlineSegmentSize: encInlineSegmentSize,
revocations: revocations,
defaultRS: defaultRSScheme,
config: config,
}, nil
}
// Close closes resources.
func (endpoint *Endpoint) Close() error { return nil }
func calculateSpaceUsed(ptr *pb.Pointer) (segmentSize, totalStored int64) {
inline := ptr.GetInlineSegment()
if inline != nil {
inlineSize := int64(len(inline))
return inlineSize, inlineSize
}
segmentSize = ptr.GetSegmentSize()
remote := ptr.GetRemote()
if remote == nil {
return 0, 0
}
minReq := remote.GetRedundancy().GetMinReq()
pieceSize := segmentSize / int64(minReq)
pieces := remote.GetRemotePieces()
return segmentSize, pieceSize * int64(len(pieces))
}
// filterValidPieces filter out the invalid remote pieces held by pointer.
//
// This method expect the pointer to be valid, so it has to be validated before
// calling it.
//
// The method always return a gRPC status error so the caller can directly
// return it to the client.
func (endpoint *Endpoint) filterValidPieces(ctx context.Context, pointer *pb.Pointer, originalLimits []*pb.OrderLimit) (err error) {
defer mon.Task()(&ctx)(&err)
if pointer.Type != pb.Pointer_REMOTE {
return nil
}
// verify that the piece sizes matches what we would expect.
err = endpoint.pointerVerification.VerifySizes(ctx, pointer)
if err != nil {
endpoint.log.Debug("piece sizes are invalid", zap.Error(err))
return rpcstatus.Errorf(rpcstatus.InvalidArgument, "piece sizes are invalid: %v", err)
}
validPieces, invalidPieces, err := endpoint.pointerVerification.SelectValidPieces(ctx, pointer, originalLimits)
if err != nil {
endpoint.log.Debug("pointer verification failed", zap.Error(err))
return rpcstatus.Errorf(rpcstatus.InvalidArgument, "pointer verification failed: %s", err)
}
remote := pointer.Remote
if int32(len(validPieces)) < remote.Redundancy.SuccessThreshold {
endpoint.log.Debug("Number of valid pieces is less than the success threshold",
zap.Int("totalReceivedPieces", len(remote.RemotePieces)),
zap.Int("validPieces", len(validPieces)),
zap.Int("invalidPieces", len(invalidPieces)),
zap.Int32("successThreshold", remote.Redundancy.SuccessThreshold),
)
errMsg := fmt.Sprintf("Number of valid pieces (%d) is less than the success threshold (%d). Found %d invalid pieces",
len(validPieces),
remote.Redundancy.SuccessThreshold,
len(remote.RemotePieces),
)
if len(invalidPieces) > 0 {
errMsg = fmt.Sprintf("%s. Invalid Pieces:", errMsg)
for _, p := range invalidPieces {
errMsg = fmt.Sprintf("%s\nNodeID: %v, PieceNum: %d, Reason: %s",
errMsg, p.NodeID, p.PieceNum, p.Reason,
)
}
}
return rpcstatus.Error(rpcstatus.InvalidArgument, errMsg)
}
remote.RemotePieces = validPieces
return nil
}
// ProjectInfo returns allowed ProjectInfo for the provided API key.
func (endpoint *Endpoint) ProjectInfo(ctx context.Context, req *pb.ProjectInfoRequest) (_ *pb.ProjectInfoResponse, err error) {
defer mon.Task()(&ctx)(&err)
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionProjectInfo,
Time: time.Now(),
})
if err != nil {
return nil, err
}
salt := sha256.Sum256(keyInfo.ProjectID[:])
return &pb.ProjectInfoResponse{
ProjectSalt: salt[:],
}, nil
}
// GetBucket returns a bucket.
func (endpoint *Endpoint) GetBucket(ctx context.Context, req *pb.BucketGetRequest) (resp *pb.BucketGetResponse, err error) {
defer mon.Task()(&ctx)(&err)
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionRead,
Bucket: req.Name,
Time: time.Now(),
})
if err != nil {
return nil, err
}
bucket, err := endpoint.metainfo.GetBucket(ctx, req.GetName(), keyInfo.ProjectID)
if err != nil {
if storj.ErrBucketNotFound.Has(err) {
return nil, rpcstatus.Error(rpcstatus.NotFound, err.Error())
}
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
// override RS to fit satellite settings
convBucket, err := convertBucketToProto(bucket, endpoint.defaultRS)
if err != nil {
return resp, err
}
return &pb.BucketGetResponse{
Bucket: convBucket,
}, nil
}
// CreateBucket creates a new bucket.
func (endpoint *Endpoint) CreateBucket(ctx context.Context, req *pb.BucketCreateRequest) (resp *pb.BucketCreateResponse, err error) {
defer mon.Task()(&ctx)(&err)
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionWrite,
Bucket: req.Name,
Time: time.Now(),
})
if err != nil {
return nil, err
}
err = endpoint.validateBucket(ctx, req.Name)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
// checks if bucket exists before updates it or makes a new entry
_, err = endpoint.metainfo.GetBucket(ctx, req.GetName(), keyInfo.ProjectID)
if err == nil {
// When the bucket exists, try to set the attribution.
if err := endpoint.ensureAttribution(ctx, req.Header, keyInfo, req.GetName()); err != nil {
return nil, err
}
return nil, rpcstatus.Error(rpcstatus.AlreadyExists, "bucket already exists")
}
if !storj.ErrBucketNotFound.Has(err) {
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
// check if project has exceeded its allocated bucket limit
maxBuckets, err := endpoint.projects.GetMaxBuckets(ctx, keyInfo.ProjectID)
if err != nil {
return nil, err
}
if maxBuckets == nil {
defaultMaxBuckets := endpoint.config.ProjectLimits.MaxBuckets
maxBuckets = &defaultMaxBuckets
}
bucketCount, err := endpoint.metainfo.CountBuckets(ctx, keyInfo.ProjectID)
if err != nil {
return nil, err
}
if bucketCount >= *maxBuckets {
return nil, rpcstatus.Error(rpcstatus.ResourceExhausted, fmt.Sprintf("number of allocated buckets (%d) exceeded", endpoint.config.ProjectLimits.MaxBuckets))
}
bucketReq, err := convertProtoToBucket(req, keyInfo.ProjectID)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
bucket, err := endpoint.metainfo.CreateBucket(ctx, bucketReq)
if err != nil {
endpoint.log.Error("error while creating bucket", zap.String("bucketName", bucketReq.Name), zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to create bucket")
}
// Once we have created the bucket, we can try setting the attribution.
if err := endpoint.ensureAttribution(ctx, req.Header, keyInfo, req.GetName()); err != nil {
return nil, err
}
// override RS to fit satellite settings
convBucket, err := convertBucketToProto(bucket, endpoint.defaultRS)
if err != nil {
endpoint.log.Error("error while converting bucket to proto", zap.String("bucketName", bucket.Name), zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to create bucket")
}
return &pb.BucketCreateResponse{
Bucket: convBucket,
}, nil
}
// DeleteBucket deletes a bucket.
func (endpoint *Endpoint) DeleteBucket(ctx context.Context, req *pb.BucketDeleteRequest) (resp *pb.BucketDeleteResponse, err error) {
defer mon.Task()(&ctx)(&err)
now := time.Now()
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionDelete,
Bucket: req.Name,
Time: now,
})
if err != nil {
return nil, err
}
err = endpoint.validateBucket(ctx, req.Name)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
_, err = endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionRead,
Bucket: req.Name,
Time: now,
})
canRead := err == nil
_, err = endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionList,
Bucket: req.Name,
Time: now,
})
canList := err == nil
var (
bucket storj.Bucket
convBucket *pb.Bucket
)
if canRead || canList {
// Info about deleted bucket is returned only if either Read, or List permission is granted.
bucket, err = endpoint.metainfo.GetBucket(ctx, req.Name, keyInfo.ProjectID)
if err != nil {
if storj.ErrBucketNotFound.Has(err) {
return nil, rpcstatus.Error(rpcstatus.NotFound, err.Error())
}
return nil, err
}
convBucket, err = convertBucketToProto(bucket, endpoint.defaultRS)
if err != nil {
return nil, err
}
}
err = endpoint.metainfo.DeleteBucket(ctx, req.Name, keyInfo.ProjectID)
if err != nil {
if !canRead && !canList {
// No error info is returned if neither Read, nor List permission is granted.
return &pb.BucketDeleteResponse{}, nil
}
if ErrBucketNotEmpty.Has(err) {
// List permission is required to delete all objects in a bucket.
if !req.GetDeleteAll() || !canList {
return nil, rpcstatus.Error(rpcstatus.FailedPrecondition, err.Error())
}
_, deletedObjCount, err := endpoint.deleteBucketNotEmpty(ctx, keyInfo.ProjectID, req.Name)
if err != nil {
return nil, err
}
return &pb.BucketDeleteResponse{Bucket: convBucket, DeletedObjectsCount: int64(deletedObjCount)}, nil
}
if storj.ErrBucketNotFound.Has(err) {
return &pb.BucketDeleteResponse{Bucket: convBucket}, nil
}
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
return &pb.BucketDeleteResponse{Bucket: convBucket}, nil
}
// deleteBucketNotEmpty deletes all objects that're complete or have first segment.
// On success, it returns only the number of complete objects that has been deleted
// since from the user's perspective, objects without last segment are invisible.
func (endpoint *Endpoint) deleteBucketNotEmpty(ctx context.Context, projectID uuid.UUID, bucketName []byte) ([]byte, int, error) {
// Delete all objects that has last segment.
deletedCount, err := endpoint.deleteByPrefix(ctx, projectID, bucketName, metabase.LastSegmentIndex)
if err != nil {
return nil, 0, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
// Delete all zombie objects that have first segment.
_, err = endpoint.deleteByPrefix(ctx, projectID, bucketName, metabase.FirstSegmentIndex)
if err != nil {
return nil, deletedCount, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
err = endpoint.metainfo.DeleteBucket(ctx, bucketName, projectID)
if err != nil {
if ErrBucketNotEmpty.Has(err) {
return nil, deletedCount, rpcstatus.Error(rpcstatus.FailedPrecondition, "cannot delete the bucket because it's being used by another process")
}
if storj.ErrBucketNotFound.Has(err) {
return bucketName, 0, nil
}
return nil, deletedCount, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
return bucketName, deletedCount, nil
}
// deleteByPrefix deletes all objects that matches with a prefix.
func (endpoint *Endpoint) deleteByPrefix(ctx context.Context, projectID uuid.UUID, bucketName []byte, segmentIdx int64) (deletedCount int, err error) {
defer mon.Task()(&ctx)(&err)
location, err := CreatePath(ctx, projectID, segmentIdx, bucketName, []byte{})
if err != nil {
return deletedCount, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
prefix := location.Encode()
for {
segments, more, err := endpoint.metainfo.List(ctx, prefix, "", true, 0, meta.None)
if err != nil {
return deletedCount, err
}
deleteReqs := make([]*metabase.ObjectLocation, len(segments))
for i, segment := range segments {
deleteReqs[i] = &metabase.ObjectLocation{
ProjectID: projectID,
BucketName: string(bucketName),
ObjectKey: metabase.ObjectKey(segment.Path),
}
}
rep, err := endpoint.deleteObjectsPieces(ctx, deleteReqs...)
if err != nil {
return deletedCount, err
}
deletedCount += len(rep.Deleted)
if !more {
break
}
}
return deletedCount, nil
}
// ListBuckets returns buckets in a project where the bucket name matches the request cursor.
func (endpoint *Endpoint) ListBuckets(ctx context.Context, req *pb.BucketListRequest) (resp *pb.BucketListResponse, err error) {
defer mon.Task()(&ctx)(&err)
action := macaroon.Action{
// TODO: This has to be ActionList, but it seems to be set to
// ActionRead as a hacky workaround to make bucket listing possible.
Op: macaroon.ActionRead,
Time: time.Now(),
}
keyInfo, err := endpoint.validateAuth(ctx, req.Header, action)
if err != nil {
return nil, err
}
allowedBuckets, err := getAllowedBuckets(ctx, req.Header, action)
if err != nil {
return nil, err
}
listOpts := storj.BucketListOptions{
Cursor: string(req.Cursor),
Limit: int(req.Limit),
Direction: storj.ListDirection(req.Direction),
}
bucketList, err := endpoint.metainfo.ListBuckets(ctx, keyInfo.ProjectID, listOpts, allowedBuckets)
if err != nil {
return nil, err
}
bucketItems := make([]*pb.BucketListItem, len(bucketList.Items))
for i, item := range bucketList.Items {
bucketItems[i] = &pb.BucketListItem{
Name: []byte(item.Name),
CreatedAt: item.Created,
}
}
return &pb.BucketListResponse{
Items: bucketItems,
More: bucketList.More,
}, nil
}
// CountBuckets returns the number of buckets a project currently has.
// TODO: add this to the uplink client side.
func (endpoint *Endpoint) CountBuckets(ctx context.Context, projectID uuid.UUID) (count int, err error) {
count, err = endpoint.metainfo.CountBuckets(ctx, projectID)
if err != nil {
return 0, err
}
return count, nil
}
func getAllowedBuckets(ctx context.Context, header *pb.RequestHeader, action macaroon.Action) (_ macaroon.AllowedBuckets, err error) {
key, err := getAPIKey(ctx, header)
if err != nil {
return macaroon.AllowedBuckets{}, rpcstatus.Errorf(rpcstatus.InvalidArgument, "Invalid API credentials: %v", err)
}
allowedBuckets, err := key.GetAllowedBuckets(ctx, action)
if err != nil {
return macaroon.AllowedBuckets{}, rpcstatus.Errorf(rpcstatus.Internal, "GetAllowedBuckets: %v", err)
}
return allowedBuckets, err
}
func convertProtoToBucket(req *pb.BucketCreateRequest, projectID uuid.UUID) (bucket storj.Bucket, err error) {
bucketID, err := uuid.New()
if err != nil {
return storj.Bucket{}, err
}
defaultRS := req.GetDefaultRedundancyScheme()
defaultEP := req.GetDefaultEncryptionParameters()
// TODO: resolve partner id
var partnerID uuid.UUID
err = partnerID.UnmarshalJSON(req.GetPartnerId())
// bucket's partnerID should never be set
// it is always read back from buckets DB
if err != nil && !partnerID.IsZero() {
return bucket, errs.New("Invalid uuid")
}
return storj.Bucket{
ID: bucketID,
Name: string(req.GetName()),
ProjectID: projectID,
PartnerID: partnerID,
PathCipher: storj.CipherSuite(req.GetPathCipher()),
DefaultSegmentsSize: req.GetDefaultSegmentSize(),
DefaultRedundancyScheme: storj.RedundancyScheme{
Algorithm: storj.RedundancyAlgorithm(defaultRS.GetType()),
ShareSize: defaultRS.GetErasureShareSize(),
RequiredShares: int16(defaultRS.GetMinReq()),
RepairShares: int16(defaultRS.GetRepairThreshold()),
OptimalShares: int16(defaultRS.GetSuccessThreshold()),
TotalShares: int16(defaultRS.GetTotal()),
},
DefaultEncryptionParameters: storj.EncryptionParameters{
CipherSuite: storj.CipherSuite(defaultEP.CipherSuite),
BlockSize: int32(defaultEP.BlockSize),
},
}, nil
}
func convertBucketToProto(bucket storj.Bucket, rs *pb.RedundancyScheme) (pbBucket *pb.Bucket, err error) {
if bucket == (storj.Bucket{}) {
return nil, nil
}
partnerID, err := bucket.PartnerID.MarshalJSON()
if err != nil {
return pbBucket, rpcstatus.Error(rpcstatus.Internal, "UUID marshal error")
}
pbBucket = &pb.Bucket{
Name: []byte(bucket.Name),
PathCipher: pb.CipherSuite(bucket.PathCipher),
PartnerId: partnerID,
CreatedAt: bucket.Created,
DefaultSegmentSize: bucket.DefaultSegmentsSize,
DefaultRedundancyScheme: rs,
DefaultEncryptionParameters: &pb.EncryptionParameters{
CipherSuite: pb.CipherSuite(bucket.DefaultEncryptionParameters.CipherSuite),
BlockSize: int64(bucket.DefaultEncryptionParameters.BlockSize),
},
}
// this part is to provide default ciphers (path and encryption) for old uplinks
// new uplinks are using ciphers from encryption access
if pbBucket.PathCipher == pb.CipherSuite_ENC_UNSPECIFIED {
pbBucket.PathCipher = pb.CipherSuite_ENC_AESGCM
}
if pbBucket.DefaultEncryptionParameters.CipherSuite == pb.CipherSuite_ENC_UNSPECIFIED {
pbBucket.DefaultEncryptionParameters.CipherSuite = pb.CipherSuite_ENC_AESGCM
pbBucket.DefaultEncryptionParameters.BlockSize = int64(rs.ErasureShareSize * rs.MinReq)
}
return pbBucket, nil
}
// BeginObject begins object.
func (endpoint *Endpoint) BeginObject(ctx context.Context, req *pb.ObjectBeginRequest) (resp *pb.ObjectBeginResponse, err error) {
defer mon.Task()(&ctx)(&err)
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionWrite,
Bucket: req.Bucket,
EncryptedPath: req.EncryptedPath,
Time: time.Now(),
})
if err != nil {
return nil, err
}
if !req.ExpiresAt.IsZero() && !req.ExpiresAt.After(time.Now()) {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, "Invalid expiration time")
}
err = endpoint.validateBucket(ctx, req.Bucket)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
// TODO this needs to be optimized to avoid DB call on each request
_, err = endpoint.metainfo.GetBucket(ctx, req.Bucket, keyInfo.ProjectID)
if err != nil {
if storj.ErrBucketNotFound.Has(err) {
return nil, rpcstatus.Error(rpcstatus.NotFound, err.Error())
}
endpoint.log.Error("unable to check bucket", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
if err := endpoint.ensureAttribution(ctx, req.Header, keyInfo, req.Bucket); err != nil {
return nil, err
}
// use only satellite values for Redundancy Scheme
pbRS := endpoint.defaultRS
streamID, err := endpoint.packStreamID(ctx, &internalpb.StreamID{
Bucket: req.Bucket,
EncryptedPath: req.EncryptedPath,
Version: req.Version,
Redundancy: pbRS,
CreationDate: time.Now(),
ExpirationDate: req.ExpiresAt,
})
if err != nil {
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
_, err = endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionDelete,
Bucket: req.Bucket,
EncryptedPath: req.EncryptedPath,
Time: time.Now(),
})
canDelete := err == nil
if canDelete {
_, err = endpoint.DeleteObjectPieces(ctx, keyInfo.ProjectID, req.Bucket, req.EncryptedPath)
if err != nil {
return nil, err
}
} else {
location, err := CreatePath(ctx, keyInfo.ProjectID, metabase.LastSegmentIndex, req.Bucket, req.EncryptedPath)
if err != nil {
endpoint.log.Error("unable to create path", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
// TODO maybe we can have different Get without pointer unmarshaling
_, _, err = endpoint.metainfo.GetWithBytes(ctx, location.Encode())
if err == nil {
return nil, rpcstatus.Error(rpcstatus.PermissionDenied, "Unauthorized API credentials")
}
}
endpoint.log.Info("Object Upload", zap.Stringer("Project ID", keyInfo.ProjectID), zap.String("operation", "put"), zap.String("type", "object"))
mon.Meter("req_put_object").Mark(1)
return &pb.ObjectBeginResponse{
Bucket: req.Bucket,
EncryptedPath: req.EncryptedPath,
Version: req.Version,
StreamId: streamID,
RedundancyScheme: pbRS,
}, nil
}
// CommitObject commits an object when all its segments have already been committed.
func (endpoint *Endpoint) CommitObject(ctx context.Context, req *pb.ObjectCommitRequest) (resp *pb.ObjectCommitResponse, err error) {
defer mon.Task()(&ctx)(&err)
return endpoint.commitObject(ctx, req, nil)
}
func (endpoint *Endpoint) commitObject(ctx context.Context, req *pb.ObjectCommitRequest, pointer *pb.Pointer) (resp *pb.ObjectCommitResponse, err error) {
defer mon.Task()(&ctx)(&err)
streamID, err := endpoint.unmarshalSatStreamID(ctx, req.StreamId)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionWrite,
Bucket: streamID.Bucket,
EncryptedPath: streamID.EncryptedPath,
Time: time.Now(),
})
if err != nil {
return nil, err
}
metadataSize := memory.Size(len(req.EncryptedMetadata))
if metadataSize > endpoint.config.MaxMetadataSize {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, fmt.Sprintf("Metadata is too large, got %v, maximum allowed is %v", metadataSize, endpoint.config.MaxMetadataSize))
}
streamMeta := pb.StreamMeta{}
err = pb.Unmarshal(req.EncryptedMetadata, &streamMeta)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, "invalid metadata structure")
}
lastSegmentPointer := pointer
if pointer == nil {
lastSegmentIndex := streamMeta.NumberOfSegments - 1
lastSegmentLocation, err := CreatePath(ctx, keyInfo.ProjectID, lastSegmentIndex, streamID.Bucket, streamID.EncryptedPath)
if err != nil {
return nil, rpcstatus.Errorf(rpcstatus.InvalidArgument, "unable to create segment path: %s", err.Error())
}
var lastSegmentPointerBytes []byte
lastSegmentKey := lastSegmentLocation.Encode()
lastSegmentPointerBytes, lastSegmentPointer, err = endpoint.metainfo.GetWithBytes(ctx, lastSegmentKey)
if err != nil {
endpoint.log.Error("unable to get pointer", zap.ByteString("segmentPath", lastSegmentKey), zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to commit object")
}
if lastSegmentPointer == nil {
return nil, rpcstatus.Errorf(rpcstatus.NotFound, "unable to find object: %q/%q", streamID.Bucket, streamID.EncryptedPath)
}
err = endpoint.metainfo.Delete(ctx, lastSegmentKey, lastSegmentPointerBytes)
if err != nil {
endpoint.log.Error("unable to delete pointer", zap.ByteString("segmentPath", lastSegmentKey), zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to commit object")
}
}
if lastSegmentPointer.Remote == nil {
lastSegmentPointer.Remote = &pb.RemoteSegment{}
}
// RS is set always for last segment to emulate RS per object
lastSegmentPointer.Remote.Redundancy = streamID.Redundancy
lastSegmentPointer.Metadata = req.EncryptedMetadata
lastSegmentLocation, err := CreatePath(ctx, keyInfo.ProjectID, int64(metabase.LastSegmentIndex), streamID.Bucket, streamID.EncryptedPath)
if err != nil {
endpoint.log.Error("unable to create path", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to commit object")
}
err = endpoint.metainfo.UnsynchronizedPut(ctx, lastSegmentLocation.Encode(), lastSegmentPointer)
if err != nil {
endpoint.log.Error("unable to put pointer", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to commit object")
}
return &pb.ObjectCommitResponse{}, nil
}
// GetObject gets single object.
func (endpoint *Endpoint) GetObject(ctx context.Context, req *pb.ObjectGetRequest) (resp *pb.ObjectGetResponse, err error) {
defer mon.Task()(&ctx)(&err)
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionRead,
Bucket: req.Bucket,
EncryptedPath: req.EncryptedPath,
Time: time.Now(),
})
if err != nil {
return nil, err
}
err = endpoint.validateBucket(ctx, req.Bucket)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
object, err := endpoint.getObject(ctx, keyInfo.ProjectID, req.Bucket, req.EncryptedPath, req.Version)
if err != nil {
return nil, err
}
endpoint.log.Info("Object Download", zap.Stringer("Project ID", keyInfo.ProjectID), zap.String("operation", "get"), zap.String("type", "object"))
mon.Meter("req_get_object").Mark(1)
return &pb.ObjectGetResponse{
Object: object,
}, nil
}
func (endpoint *Endpoint) getObject(ctx context.Context, projectID uuid.UUID, bucket, encryptedPath []byte, version int32) (*pb.Object, error) {
pointer, _, err := endpoint.getPointer(ctx, projectID, metabase.LastSegmentIndex, bucket, encryptedPath)
if err != nil {
return nil, err
}
streamMeta := &pb.StreamMeta{}
err = pb.Unmarshal(pointer.Metadata, streamMeta)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
streamID, err := endpoint.packStreamID(ctx, &internalpb.StreamID{
Bucket: bucket,
EncryptedPath: encryptedPath,
Version: version,
CreationDate: time.Now(),
})
if err != nil {
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
object := &pb.Object{
Bucket: bucket,
EncryptedPath: encryptedPath,
Version: -1,
StreamId: streamID,
ExpiresAt: pointer.ExpirationDate,
CreatedAt: pointer.CreationDate,
EncryptedMetadata: pointer.Metadata,
EncryptionParameters: &pb.EncryptionParameters{
CipherSuite: pb.CipherSuite(streamMeta.EncryptionType),
BlockSize: int64(streamMeta.EncryptionBlockSize),
},
}
if pointer.Remote != nil {
object.RedundancyScheme = pointer.Remote.Redundancy
// NumberOfSegments == 0 - pointer with encrypted num of segments
// NumberOfSegments > 1 - pointer with unencrypted num of segments and multiple segments
} else if streamMeta.NumberOfSegments == 0 || streamMeta.NumberOfSegments > 1 {
// workaround
// The new metainfo API redundancy scheme is on object level (not per segment).
// Because of that, RS is always taken from the last segment.
// The old implementation saves RS per segment, and in some cases
// when the remote file's last segment is an inline segment, we end up
// missing an RS scheme. This loop will search for RS in segments other than the last one.
index := int64(0)
for {
location, err := CreatePath(ctx, projectID, index, bucket, encryptedPath)
if err != nil {
endpoint.log.Error("unable to get pointer path", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to get object")
}
pointer, err = endpoint.metainfo.Get(ctx, location.Encode())
if err != nil {
if storj.ErrObjectNotFound.Has(err) {
break
}
endpoint.log.Error("unable to get pointer", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to get object")
}
if pointer.Remote != nil {
object.RedundancyScheme = pointer.Remote.Redundancy
break
}
index++
}
}
return object, nil
}
// ListObjects list objects according to specific parameters.
func (endpoint *Endpoint) ListObjects(ctx context.Context, req *pb.ObjectListRequest) (resp *pb.ObjectListResponse, err error) {
defer mon.Task()(&ctx)(&err)
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionList,
Bucket: req.Bucket,
EncryptedPath: req.EncryptedPrefix,
Time: time.Now(),
})
if err != nil {
return nil, err
}
err = endpoint.validateBucket(ctx, req.Bucket)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
// TODO this needs to be optimized to avoid DB call on each request
_, err = endpoint.metainfo.GetBucket(ctx, req.Bucket, keyInfo.ProjectID)
if err != nil {
if storj.ErrBucketNotFound.Has(err) {
return nil, rpcstatus.Error(rpcstatus.NotFound, err.Error())
}
endpoint.log.Error("unable to check bucket", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
prefix, err := CreatePath(ctx, keyInfo.ProjectID, metabase.LastSegmentIndex, req.Bucket, req.EncryptedPrefix)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
metaflags := meta.All
// TODO use flags
segments, more, err := endpoint.metainfo.List(ctx, prefix.Encode(), string(req.EncryptedCursor), req.Recursive, req.Limit, metaflags)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
items := make([]*pb.ObjectListItem, len(segments))
for i, segment := range segments {
items[i] = &pb.ObjectListItem{
EncryptedPath: []byte(segment.Path),
}
if segment.Pointer != nil {
items[i].EncryptedMetadata = segment.Pointer.Metadata
items[i].CreatedAt = segment.Pointer.CreationDate
items[i].ExpiresAt = segment.Pointer.ExpirationDate
}
}
endpoint.log.Info("Object List", zap.Stringer("Project ID", keyInfo.ProjectID), zap.String("operation", "list"), zap.String("type", "object"))
mon.Meter("req_list_object").Mark(1)
return &pb.ObjectListResponse{
Items: items,
More: more,
}, nil
}
// BeginDeleteObject begins object deletion process.
func (endpoint *Endpoint) BeginDeleteObject(ctx context.Context, req *pb.ObjectBeginDeleteRequest) (resp *pb.ObjectBeginDeleteResponse, err error) {
defer mon.Task()(&ctx)(&err)
now := time.Now()
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionDelete,
Bucket: req.Bucket,
EncryptedPath: req.EncryptedPath,
Time: now,
})
if err != nil {
return nil, err
}