frostfs-s3-gw/api/layer/layer.go
Denis Kirillov 4bb885d526 [#122] Refactor
Signed-off-by: Denis Kirillov <denis@nspcc.ru>
2021-08-25 14:49:21 +03:00

485 lines
13 KiB
Go

package layer
import (
"bytes"
"context"
"crypto/ecdsa"
"fmt"
"io"
"net/url"
"time"
"github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
"github.com/nspcc-dev/neofs-api-go/pkg/client"
cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id"
"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
"github.com/nspcc-dev/neofs-api-go/pkg/object"
"github.com/nspcc-dev/neofs-api-go/pkg/owner"
"github.com/nspcc-dev/neofs-s3-gw/api"
"github.com/nspcc-dev/neofs-s3-gw/api/cache"
"github.com/nspcc-dev/neofs-s3-gw/api/errors"
"github.com/nspcc-dev/neofs-s3-gw/creds/accessbox"
"github.com/nspcc-dev/neofs-sdk-go/pkg/pool"
"go.uber.org/zap"
)
type (
layer struct {
pool pool.Pool
log *zap.Logger
listsCache ObjectsListCache
objCache cache.ObjectsCache
namesCache cache.ObjectsNameCache
bucketCache cache.BucketCache
systemCache cache.SystemCache
}
// CacheConfig contains params for caches.
CacheConfig struct {
Lifetime time.Duration
Size int
ListObjectsLifetime time.Duration
}
// Params stores basic API parameters.
Params struct {
Pool pool.Pool
Logger *zap.Logger
Timeout time.Duration
Key *ecdsa.PrivateKey
}
// GetObjectParams stores object get request parameters.
GetObjectParams struct {
Range *RangeParams
ObjectInfo *ObjectInfo
Offset int64
Length int64
Writer io.Writer
VersionID string
}
// HeadObjectParams stores object head request parameters.
HeadObjectParams struct {
Bucket string
Object string
VersionID string
}
// RangeParams stores range header request parameters.
RangeParams struct {
Start uint64
End uint64
}
// PutObjectParams stores object put request parameters.
PutObjectParams struct {
Bucket string
Object string
Size int64
Reader io.Reader
Header map[string]string
}
// PutVersioningParams stores object copy request parameters.
PutVersioningParams struct {
Bucket string
Settings *BucketSettings
}
// BucketSettings stores settings such as versioning.
BucketSettings struct {
VersioningEnabled bool
}
// CopyObjectParams stores object copy request parameters.
CopyObjectParams struct {
SrcObject *ObjectInfo
DstBucket string
DstObject string
SrcSize int64
Header map[string]string
}
// CreateBucketParams stores bucket create request parameters.
CreateBucketParams struct {
Name string
ACL uint32
Policy *netmap.PlacementPolicy
EACL *eacl.Table
BoxData *accessbox.Box
}
// PutBucketACLParams stores put bucket acl request parameters.
PutBucketACLParams struct {
Name string
EACL *eacl.Table
}
// DeleteBucketParams stores delete bucket request parameters.
DeleteBucketParams struct {
Name string
}
// ListObjectVersionsParams stores list objects versions parameters.
ListObjectVersionsParams struct {
Bucket string
Delimiter string
KeyMarker string
MaxKeys int
Prefix string
VersionIDMarker string
Encode string
}
// VersionedObject stores object name and version.
VersionedObject struct {
Name string
VersionID string
}
// NeoFS provides basic NeoFS interface.
NeoFS interface {
Get(ctx context.Context, address *object.Address) (*object.Object, error)
}
// Client provides S3 API client interface.
Client interface {
NeoFS
PutBucketVersioning(ctx context.Context, p *PutVersioningParams) (*ObjectInfo, error)
GetBucketVersioning(ctx context.Context, name string) (*BucketSettings, error)
ListBuckets(ctx context.Context) ([]*cache.BucketInfo, error)
GetBucketInfo(ctx context.Context, name string) (*cache.BucketInfo, error)
GetBucketACL(ctx context.Context, name string) (*BucketACL, error)
PutBucketACL(ctx context.Context, p *PutBucketACLParams) error
CreateBucket(ctx context.Context, p *CreateBucketParams) (*cid.ID, error)
DeleteBucket(ctx context.Context, p *DeleteBucketParams) error
GetObject(ctx context.Context, p *GetObjectParams) error
GetObjectInfo(ctx context.Context, p *HeadObjectParams) (*ObjectInfo, error)
PutObject(ctx context.Context, p *PutObjectParams) (*ObjectInfo, error)
CopyObject(ctx context.Context, p *CopyObjectParams) (*ObjectInfo, error)
ListObjectsV1(ctx context.Context, p *ListObjectsParamsV1) (*ListObjectsInfoV1, error)
ListObjectsV2(ctx context.Context, p *ListObjectsParamsV2) (*ListObjectsInfoV2, error)
ListObjectVersions(ctx context.Context, p *ListObjectVersionsParams) (*ListObjectVersionsInfo, error)
DeleteObjects(ctx context.Context, bucket string, objects []*VersionedObject) []error
}
)
func (t *VersionedObject) String() string {
return t.Name + ":" + t.VersionID
}
// NewLayer creates instance of layer. It checks credentials
// and establishes gRPC connection with node.
func NewLayer(log *zap.Logger, conns pool.Pool, config *CacheConfig) Client {
return &layer{
pool: conns,
log: log,
listsCache: newListObjectsCache(config.ListObjectsLifetime),
objCache: cache.New(config.Size, config.Lifetime),
//todo reconsider cache params
namesCache: cache.NewObjectsNameCache(1000, time.Minute),
bucketCache: cache.NewBucketCache(150, time.Minute),
systemCache: cache.NewSystemCache(1000, 5*time.Minute),
}
}
// Owner returns owner id from BearerToken (context) or from client owner.
func (n *layer) Owner(ctx context.Context) *owner.ID {
if data, ok := ctx.Value(api.BoxData).(*accessbox.Box); ok && data != nil && data.Gate != nil {
return data.Gate.BearerToken.Issuer()
}
return n.pool.OwnerID()
}
// BearerOpt returns client.WithBearer call option with token from context or with nil token.
func (n *layer) BearerOpt(ctx context.Context) client.CallOption {
if data, ok := ctx.Value(api.BoxData).(*accessbox.Box); ok && data != nil && data.Gate != nil {
return client.WithBearer(data.Gate.BearerToken)
}
return client.WithBearer(nil)
}
// SessionOpt returns client.WithSession call option with token from context or with nil token.
func (n *layer) SessionOpt(ctx context.Context) client.CallOption {
if data, ok := ctx.Value(api.BoxData).(*accessbox.Box); ok && data != nil && data.Gate != nil {
return client.WithSession(data.Gate.SessionToken)
}
return client.WithSession(nil)
}
// Get NeoFS Object by refs.Address (should be used by auth.Center).
func (n *layer) Get(ctx context.Context, address *object.Address) (*object.Object, error) {
ops := new(client.GetObjectParams).WithAddress(address)
return n.pool.GetObject(ctx, ops, n.BearerOpt(ctx))
}
// GetBucketInfo returns bucket info by name.
func (n *layer) GetBucketInfo(ctx context.Context, name string) (*cache.BucketInfo, error) {
name, err := url.QueryUnescape(name)
if err != nil {
return nil, err
}
if bktInfo := n.bucketCache.Get(name); bktInfo != nil {
return bktInfo, nil
}
containerID := new(cid.ID)
if err := containerID.Parse(name); err != nil {
list, err := n.containerList(ctx)
if err != nil {
return nil, err
}
for _, bkt := range list {
if bkt.Name == name {
return bkt, nil
}
}
return nil, errors.GetAPIError(errors.ErrNoSuchBucket)
}
return n.containerInfo(ctx, containerID)
}
// GetBucketACL returns bucket acl info by name.
func (n *layer) GetBucketACL(ctx context.Context, name string) (*BucketACL, error) {
inf, err := n.GetBucketInfo(ctx, name)
if err != nil {
return nil, err
}
eacl, err := n.GetContainerEACL(ctx, inf.CID)
if err != nil {
return nil, err
}
return &BucketACL{
Info: inf,
EACL: eacl,
}, nil
}
// PutBucketACL put bucket acl by name.
func (n *layer) PutBucketACL(ctx context.Context, param *PutBucketACLParams) error {
inf, err := n.GetBucketInfo(ctx, param.Name)
if err != nil {
return err
}
return n.setContainerEACLTable(ctx, inf.CID, param.EACL)
}
// ListBuckets returns all user containers. Name of the bucket is a container
// id. Timestamp is omitted since it is not saved in neofs container.
func (n *layer) ListBuckets(ctx context.Context) ([]*cache.BucketInfo, error) {
return n.containerList(ctx)
}
// GetObject from storage.
func (n *layer) GetObject(ctx context.Context, p *GetObjectParams) error {
var err error
params := &getParams{
Writer: p.Writer,
cid: p.ObjectInfo.CID(),
oid: p.ObjectInfo.ID(),
offset: p.Offset,
length: p.Length,
}
if p.Range != nil {
objRange := object.NewRange()
objRange.SetOffset(p.Range.Start)
// Range header is inclusive
objRange.SetLength(p.Range.End - p.Range.Start + 1)
params.Range = objRange
_, err = n.objectRange(ctx, params)
} else {
_, err = n.objectGet(ctx, params)
}
if err != nil {
n.objCache.Delete(p.ObjectInfo.Address())
return fmt.Errorf("couldn't get object, cid: %s : %w", p.ObjectInfo.CID(), err)
}
return nil
}
// GetObjectInfo returns meta information about the object.
func (n *layer) GetObjectInfo(ctx context.Context, p *HeadObjectParams) (*ObjectInfo, error) {
bkt, err := n.GetBucketInfo(ctx, p.Bucket)
if err != nil {
n.log.Error("could not fetch bucket info", zap.Error(err))
return nil, err
}
if len(p.VersionID) == 0 {
return n.headLastVersionIfNotDeleted(ctx, bkt, p.Object)
}
return n.headVersion(ctx, bkt, p.VersionID)
}
func (n *layer) getSettingsObjectInfo(ctx context.Context, bkt *cache.BucketInfo) (*ObjectInfo, error) {
if meta := n.systemCache.Get(bkt.SettingsObjectKey()); meta != nil {
return objInfoFromMeta(bkt, meta), nil
}
oid, err := n.objectFindID(ctx, &findParams{cid: bkt.CID, attr: objectSystemAttributeName, val: bkt.SettingsObjectName()})
if err != nil {
return nil, err
}
meta, err := n.objectHead(ctx, bkt.CID, oid)
if err != nil {
n.log.Error("could not fetch object head", zap.Error(err))
return nil, err
}
if err = n.systemCache.Put(bkt.SettingsObjectKey(), meta); err != nil {
n.log.Error("couldn't cache system object", zap.Error(err))
}
return objInfoFromMeta(bkt, meta), nil
}
// PutObject into storage.
func (n *layer) PutObject(ctx context.Context, p *PutObjectParams) (*ObjectInfo, error) {
bkt, err := n.GetBucketInfo(ctx, p.Bucket)
if err != nil {
return nil, err
}
return n.objectPut(ctx, bkt, p)
}
// CopyObject from one bucket into another bucket.
func (n *layer) CopyObject(ctx context.Context, p *CopyObjectParams) (*ObjectInfo, error) {
pr, pw := io.Pipe()
go func() {
err := n.GetObject(ctx, &GetObjectParams{
ObjectInfo: p.SrcObject,
Writer: pw,
})
if err = pw.CloseWithError(err); err != nil {
n.log.Error("could not get object", zap.Error(err))
}
}()
return n.PutObject(ctx, &PutObjectParams{
Bucket: p.DstBucket,
Object: p.DstObject,
Size: p.SrcSize,
Reader: pr,
Header: p.Header,
})
}
// DeleteObject removes all objects with passed nice name.
func (n *layer) deleteObject(ctx context.Context, bkt *cache.BucketInfo, obj *VersionedObject) error {
var (
err error
ids []*object.ID
)
versioningEnabled := n.isVersioningEnabled(ctx, bkt)
if !versioningEnabled && obj.VersionID != unversionedObjectVersionID && obj.VersionID != "" {
return errors.GetAPIError(errors.ErrInvalidVersion)
}
if versioningEnabled {
p := &PutObjectParams{
Object: obj.Name,
Reader: bytes.NewReader(nil),
Header: map[string]string{versionsDeleteMarkAttr: obj.VersionID},
}
if len(obj.VersionID) != 0 {
id, err := n.checkVersionsExist(ctx, bkt, obj)
if err != nil {
return err
}
ids = []*object.ID{id}
p.Header[versionsDelAttr] = obj.VersionID
} else {
p.Header[versionsDeleteMarkAttr] = delMarkFullObject
}
if _, err = n.objectPut(ctx, bkt, p); err != nil {
return err
}
} else {
ids, err = n.objectSearch(ctx, &findParams{cid: bkt.CID, val: obj.Name})
if err != nil {
return err
}
}
for _, id := range ids {
if err = n.objectDelete(ctx, bkt.CID, id); err != nil {
return err
}
}
return nil
}
// DeleteObjects from the storage.
func (n *layer) DeleteObjects(ctx context.Context, bucket string, objects []*VersionedObject) []error {
var errs = make([]error, 0, len(objects))
bkt, err := n.GetBucketInfo(ctx, bucket)
if err != nil {
return append(errs, err)
}
for _, obj := range objects {
if err := n.deleteObject(ctx, bkt, obj); err != nil {
errs = append(errs, &errors.ObjectError{Err: err, Object: obj.Name, Version: obj.VersionID})
}
}
return errs
}
func (n *layer) CreateBucket(ctx context.Context, p *CreateBucketParams) (*cid.ID, error) {
_, err := n.GetBucketInfo(ctx, p.Name)
if err != nil {
if errors.IsS3Error(err, errors.ErrNoSuchBucket) {
return n.createContainer(ctx, p)
}
return nil, err
}
return nil, errors.GetAPIError(errors.ErrBucketAlreadyExists)
}
func (n *layer) DeleteBucket(ctx context.Context, p *DeleteBucketParams) error {
bucketInfo, err := n.GetBucketInfo(ctx, p.Name)
if err != nil {
return err
}
objects, err := n.listSortedObjectsFromNeoFS(ctx, allObjectParams{Bucket: bucketInfo})
if err != nil {
return err
}
if len(objects) != 0 {
return errors.GetAPIError(errors.ErrBucketNotEmpty)
}
if err = n.deleteContainer(ctx, bucketInfo.CID); err != nil {
return err
}
n.bucketCache.Delete(bucketInfo.Name)
return nil
}