forked from TrueCloudLab/frostfs-node
136 lines
3.9 KiB
Go
136 lines
3.9 KiB
Go
package implementations
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import (
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"context"
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"github.com/multiformats/go-multiaddr"
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"github.com/nspcc-dev/neofs-api-go/hash"
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"github.com/nspcc-dev/neofs-api-go/object"
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"github.com/nspcc-dev/neofs-api-go/refs"
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"github.com/nspcc-dev/neofs-api-go/service"
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"github.com/nspcc-dev/neofs-api-go/storagegroup"
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"github.com/nspcc-dev/neofs-node/internal"
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"github.com/pkg/errors"
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"go.uber.org/zap"
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)
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type (
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// StorageGroupInfoReceiverParams groups the parameters of
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// storage group information receiver.
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StorageGroupInfoReceiverParams struct {
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SelectiveContainerExecutor SelectiveContainerExecutor
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Logger *zap.Logger
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}
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sgInfoRecv struct {
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executor SelectiveContainerExecutor
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log *zap.Logger
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}
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)
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const locationFinderInstanceFailMsg = "could not create object location finder"
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// ErrIncompleteSGInfo is returned by storage group information receiver
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// that could not receive full information.
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const ErrIncompleteSGInfo = internal.Error("could not receive full storage group info")
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// PublicSessionToken is a context key for SessionToken.
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// FIXME: temp solution for cycle import fix.
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// Unify with same const from transformer pkg.
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const PublicSessionToken = "public token"
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// BearerToken is a context key for BearerToken.
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const BearerToken = "bearer token"
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// ExtendedHeaders is a context key for X-headers.
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const ExtendedHeaders = "extended headers"
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func (s *sgInfoRecv) GetSGInfo(ctx context.Context, cid CID, group []ObjectID) (*storagegroup.StorageGroup, error) {
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var (
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err error
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res = new(storagegroup.StorageGroup)
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hashList = make([]hash.Hash, 0, len(group))
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)
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m := make(map[string]struct{}, len(group))
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for i := range group {
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m[group[i].String()] = struct{}{}
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}
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// FIXME: hardcoded for simplicity.
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// Function is called in next cases:
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// - SG transformation on trusted node side (only in this case session token is needed);
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// - SG info check on container nodes (token is not needed since system group has extra access);
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// - data audit on inner ring nodes (same as previous).
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var token service.SessionToken
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if v, ok := ctx.Value(PublicSessionToken).(service.SessionToken); ok {
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token = v
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}
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var bearer service.BearerToken
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if v, ok := ctx.Value(BearerToken).(service.BearerToken); ok {
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bearer = v
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}
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var extHdrs []service.ExtendedHeader
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if v, ok := ctx.Value(ExtendedHeaders).([]service.ExtendedHeader); ok {
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extHdrs = v
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}
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if err = s.executor.Head(ctx, &HeadParams{
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GetParams: GetParams{
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SelectiveParams: SelectiveParams{
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CID: cid,
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TTL: service.SingleForwardingTTL,
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IDList: group,
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Breaker: func(addr refs.Address) (cFlag ProgressControlFlag) {
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if len(m) == 0 {
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cFlag = BreakProgress
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} else if _, ok := m[addr.ObjectID.String()]; !ok {
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cFlag = NextAddress
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}
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return
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},
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Token: token,
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Bearer: bearer,
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ExtendedHeaders: extHdrs,
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},
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Handler: func(_ multiaddr.Multiaddr, obj *object.Object) {
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_, hashHeader := obj.LastHeader(object.HeaderType(object.HomoHashHdr))
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if hashHeader == nil {
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return
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}
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hashList = append(hashList, hashHeader.Value.(*object.Header_HomoHash).HomoHash)
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res.ValidationDataSize += obj.SystemHeader.PayloadLength
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delete(m, obj.SystemHeader.ID.String())
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},
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},
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FullHeaders: true,
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}); err != nil {
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return nil, err
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} else if len(m) > 0 {
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return nil, ErrIncompleteSGInfo
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}
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res.ValidationHash, err = hash.Concat(hashList)
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return res, err
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}
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// NewStorageGroupInfoReceiver constructs storagegroup.InfoReceiver from SelectiveContainerExecutor.
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func NewStorageGroupInfoReceiver(p StorageGroupInfoReceiverParams) (storagegroup.InfoReceiver, error) {
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switch {
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case p.Logger == nil:
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return nil, errors.Wrap(errEmptyLogger, locationFinderInstanceFailMsg)
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case p.SelectiveContainerExecutor == nil:
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return nil, errors.Wrap(errEmptyObjectsContainerHandler, locationFinderInstanceFailMsg)
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}
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return &sgInfoRecv{
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executor: p.SelectiveContainerExecutor,
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log: p.Logger,
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}, nil
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}
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