70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
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package tree
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neofs-node/pkg/network"
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cidSDK "github.com/nspcc-dev/neofs-sdk-go/container/id"
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"go.uber.org/zap"
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"google.golang.org/grpc"
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)
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var errNoSuitableNode = errors.New("no node was found to execute the request")
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// forEachNode executes callback for each node in the container.
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// If the node belongs to a container, nil error is returned.
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// Otherwise, f is executed for each node, stopping if true is returned.
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func (s *Service) forEachNode(ctx context.Context, cid cidSDK.ID, f func(c TreeServiceClient) bool) error {
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cntNodes, err := s.getContainerNodes(cid)
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if err != nil {
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return fmt.Errorf("can't get container nodes for %s: %w", cid, err)
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}
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rawPub := (*keys.PublicKey)(&s.key.PublicKey).Bytes()
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for _, n := range cntNodes {
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if bytes.Equal(n.PublicKey(), rawPub) {
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return nil
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}
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}
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var called bool
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for _, n := range cntNodes {
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var stop bool
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n.IterateNetworkEndpoints(func(endpoint string) bool {
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c, err := dialTreeService(ctx, endpoint)
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if err != nil {
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return false
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}
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s.log.Debug("redirecting tree service query", zap.String("endpoint", endpoint))
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called = true
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stop = f(c)
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return true
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})
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if stop {
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return nil
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}
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}
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if !called {
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return errNoSuitableNode
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}
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return nil
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}
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func dialTreeService(ctx context.Context, netmapAddr string) (TreeServiceClient, error) {
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var netAddr network.Address
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if err := netAddr.FromString(netmapAddr); err != nil {
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return nil, err
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}
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cc, err := grpc.DialContext(ctx, netAddr.URIAddr(), grpc.WithInsecure())
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if err != nil {
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return nil, err
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}
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return NewTreeServiceClient(cc), nil
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}
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