forked from TrueCloudLab/frostfs-node
e6b30aed36
In previous implementation node's Object Search V2 service handler created a new request for each RPC. Now original requests are re-signed according to API specification. Logical handler abstracts from this version-dependent logic through `RequestForwarder` callback. Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
110 lines
2.9 KiB
Go
110 lines
2.9 KiB
Go
package searchsvc
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import (
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"io"
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"sync"
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"github.com/nspcc-dev/neofs-api-go/pkg/client"
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"github.com/nspcc-dev/neofs-api-go/pkg/container"
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objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
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"github.com/nspcc-dev/neofs-api-go/pkg/token"
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rpcclient "github.com/nspcc-dev/neofs-api-go/rpc/client"
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objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
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"github.com/nspcc-dev/neofs-api-go/v2/rpc"
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"github.com/nspcc-dev/neofs-api-go/v2/session"
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"github.com/nspcc-dev/neofs-api-go/v2/signature"
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objectSvc "github.com/nspcc-dev/neofs-node/pkg/services/object"
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searchsvc "github.com/nspcc-dev/neofs-node/pkg/services/object/search"
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"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
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"github.com/pkg/errors"
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)
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func (s *Service) toPrm(req *objectV2.SearchRequest, stream objectSvc.SearchStream) (*searchsvc.Prm, error) {
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meta := req.GetMetaHeader()
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key, err := s.keyStorage.GetKey(token.NewSessionTokenFromV2(meta.GetSessionToken()))
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if err != nil {
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return nil, err
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}
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commonPrm, err := util.CommonPrmFromV2(req)
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if err != nil {
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return nil, err
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}
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p := new(searchsvc.Prm)
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p.SetCommonParameters(commonPrm.
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WithPrivateKey(key),
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)
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p.SetWriter(&streamWriter{
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stream: stream,
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})
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if !commonPrm.LocalOnly() {
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var onceResign sync.Once
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p.SetRequestForwarder(func(c client.Client) ([]*objectSDK.ID, error) {
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var err error
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// once compose and resign forwarding request
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onceResign.Do(func() {
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// compose meta header of the local server
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metaHdr := new(session.RequestMetaHeader)
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metaHdr.SetTTL(meta.GetTTL() - 1)
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// TODO: think how to set the other fields
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metaHdr.SetOrigin(meta)
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req.SetMetaHeader(metaHdr)
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err = signature.SignServiceMessage(key, req)
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})
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if err != nil {
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return nil, err
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}
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stream, err := rpc.SearchObjects(c.Raw(), req, rpcclient.WithContext(stream.Context()))
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if err != nil {
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return nil, err
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}
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// code below is copy-pasted from c.SearchObjects implementation,
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// perhaps it is worth highlighting the utility function in neofs-api-go
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var (
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searchResult []*objectSDK.ID
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resp = new(objectV2.SearchResponse)
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)
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for {
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// receive message from server stream
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err := stream.Read(resp)
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if err != nil {
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if errors.Is(errors.Cause(err), io.EOF) {
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break
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}
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return nil, errors.Wrap(err, "reading the response failed")
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}
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// verify response structure
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if err := signature.VerifyServiceMessage(resp); err != nil {
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return nil, errors.Wrapf(err, "could not verify %T", resp)
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}
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chunk := resp.GetBody().GetIDList()
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for i := range chunk {
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searchResult = append(searchResult, objectSDK.NewIDFromV2(chunk[i]))
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}
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}
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return searchResult, nil
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})
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}
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body := req.GetBody()
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p.WithContainerID(container.NewIDFromV2(body.GetContainerID()))
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p.WithSearchFilters(objectSDK.NewSearchFiltersFromV2(body.GetFilters()))
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return p, nil
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}
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