forked from TrueCloudLab/frostfs-node
230 lines
6.2 KiB
Go
230 lines
6.2 KiB
Go
package getsvc
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import (
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"context"
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"crypto/ecdsa"
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"errors"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
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coreclient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/engine"
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internalclient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal/client"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/util"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object_manager/placement"
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apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
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cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
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objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
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oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
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)
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type epochSource interface {
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Epoch() (uint64, error)
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}
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type traverserGenerator interface {
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GenerateTraverser(cid.ID, *oid.ID, uint64) (*placement.Traverser, error)
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}
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type keyStorage interface {
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GetKey(info *util.SessionInfo) (*ecdsa.PrivateKey, error)
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}
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type localStorageEngine interface {
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Head(ctx context.Context, p engine.HeadPrm) (engine.HeadRes, error)
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GetRange(ctx context.Context, p engine.RngPrm) (engine.RngRes, error)
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Get(ctx context.Context, p engine.GetPrm) (engine.GetRes, error)
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}
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type clientConstructor interface {
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Get(client.NodeInfo) (client.MultiAddressClient, error)
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}
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type remoteStorageConstructor interface {
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Get(client.NodeInfo) (remoteStorage, error)
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}
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type multiclientRemoteStorageConstructor struct {
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clientConstructor clientConstructor
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}
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func (c *multiclientRemoteStorageConstructor) Get(info client.NodeInfo) (remoteStorage, error) {
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clt, err := c.clientConstructor.Get(info)
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if err != nil {
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return nil, err
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}
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return &multiaddressRemoteStorage{
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client: clt,
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}, nil
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}
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type remoteStorage interface {
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GetObject(context.Context, *execCtx, client.NodeInfo) (*objectSDK.Object, error)
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}
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type localStorage interface {
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Head(ctx context.Context, address oid.Address, isRaw bool) (*objectSDK.Object, error)
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Range(ctx context.Context, address oid.Address, rng *objectSDK.Range) (*objectSDK.Object, error)
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Get(ctx context.Context, address oid.Address) (*objectSDK.Object, error)
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}
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type engineLocalStorage struct {
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engine localStorageEngine
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}
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func (s *engineLocalStorage) Head(ctx context.Context, address oid.Address, isRaw bool) (*objectSDK.Object, error) {
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var headPrm engine.HeadPrm
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headPrm.WithAddress(address)
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headPrm.WithRaw(isRaw)
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r, err := s.engine.Head(ctx, headPrm)
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if err != nil {
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return nil, err
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}
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return r.Header(), nil
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}
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func (s *engineLocalStorage) Range(ctx context.Context, address oid.Address, rng *objectSDK.Range) (*objectSDK.Object, error) {
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var getRange engine.RngPrm
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getRange.WithAddress(address)
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getRange.WithPayloadRange(rng)
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r, err := s.engine.GetRange(ctx, getRange)
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if err != nil {
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return nil, err
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}
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return r.Object(), nil
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}
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func (s *engineLocalStorage) Get(ctx context.Context, address oid.Address) (*objectSDK.Object, error) {
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var getPrm engine.GetPrm
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getPrm.WithAddress(address)
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r, err := s.engine.Get(ctx, getPrm)
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if err != nil {
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return nil, err
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}
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return r.Object(), nil
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}
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type multiaddressRemoteStorage struct {
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client coreclient.MultiAddressClient
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}
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func (s *multiaddressRemoteStorage) GetObject(ctx context.Context, exec *execCtx, info coreclient.NodeInfo) (*objectSDK.Object, error) {
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if exec.isForwardingEnabled() {
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return exec.prm.forwarder(ctx, info, s.client)
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}
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key, err := exec.key()
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if err != nil {
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return nil, err
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}
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if exec.headOnly() {
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return s.getHeadOnly(ctx, exec, key)
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}
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// we don't specify payload writer because we accumulate
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// the object locally (even huge).
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if rng := exec.ctxRange(); rng != nil {
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// Current spec allows other storage node to deny access,
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// fallback to GET here.
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return s.getRange(ctx, exec, key, rng)
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}
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return s.get(ctx, exec, key)
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}
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func (s *multiaddressRemoteStorage) getRange(ctx context.Context, exec *execCtx, key *ecdsa.PrivateKey, rng *object.Range) (*object.Object, error) {
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var prm internalclient.PayloadRangePrm
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prm.SetClient(s.client)
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prm.SetTTL(exec.prm.common.TTL())
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prm.SetNetmapEpoch(exec.curProcEpoch)
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prm.SetAddress(exec.address())
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prm.SetPrivateKey(key)
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prm.SetSessionToken(exec.prm.common.SessionToken())
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prm.SetBearerToken(exec.prm.common.BearerToken())
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prm.SetXHeaders(exec.prm.common.XHeaders())
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prm.SetRange(rng)
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if exec.isRaw() {
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prm.SetRawFlag()
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}
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res, err := internalclient.PayloadRange(ctx, prm)
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if err != nil {
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var errAccessDenied *apistatus.ObjectAccessDenied
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if errors.As(err, &errAccessDenied) {
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obj, err := s.get(ctx, exec, key)
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if err != nil {
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return nil, err
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}
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payload := obj.Payload()
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from := rng.GetOffset()
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to := from + rng.GetLength()
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if pLen := uint64(len(payload)); to < from || pLen < from || pLen < to {
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return nil, new(apistatus.ObjectOutOfRange)
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}
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return payloadOnlyObject(payload[from:to]), nil
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}
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return nil, err
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}
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return payloadOnlyObject(res.PayloadRange()), nil
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}
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func (s *multiaddressRemoteStorage) getHeadOnly(ctx context.Context, exec *execCtx, key *ecdsa.PrivateKey) (*object.Object, error) {
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var prm internalclient.HeadObjectPrm
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prm.SetClient(s.client)
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prm.SetTTL(exec.prm.common.TTL())
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prm.SetNetmapEpoch(exec.curProcEpoch)
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prm.SetAddress(exec.address())
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prm.SetPrivateKey(key)
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prm.SetSessionToken(exec.prm.common.SessionToken())
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prm.SetBearerToken(exec.prm.common.BearerToken())
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prm.SetXHeaders(exec.prm.common.XHeaders())
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if exec.isRaw() {
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prm.SetRawFlag()
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}
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res, err := internalclient.HeadObject(ctx, prm)
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if err != nil {
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return nil, err
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}
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return res.Header(), nil
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}
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func (s *multiaddressRemoteStorage) get(ctx context.Context, exec *execCtx, key *ecdsa.PrivateKey) (*object.Object, error) {
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var prm internalclient.GetObjectPrm
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prm.SetClient(s.client)
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prm.SetTTL(exec.prm.common.TTL())
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prm.SetNetmapEpoch(exec.curProcEpoch)
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prm.SetAddress(exec.address())
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prm.SetPrivateKey(key)
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prm.SetSessionToken(exec.prm.common.SessionToken())
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prm.SetBearerToken(exec.prm.common.BearerToken())
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prm.SetXHeaders(exec.prm.common.XHeaders())
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if exec.isRaw() {
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prm.SetRawFlag()
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}
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res, err := internalclient.GetObject(ctx, prm)
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if err != nil {
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return nil, err
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}
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return res.Object(), nil
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}
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