67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
package rangehashsvc
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import (
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"context"
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"crypto/ecdsa"
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"fmt"
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"github.com/nspcc-dev/neofs-api-go/pkg"
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"github.com/nspcc-dev/neofs-api-go/pkg/client"
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"github.com/nspcc-dev/neofs-node/pkg/network"
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"github.com/pkg/errors"
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)
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type remoteHasher struct {
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key *ecdsa.PrivateKey
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node *network.Address
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}
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func (h *remoteHasher) hashRange(ctx context.Context, prm *Prm, handler func([][]byte)) error {
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addr := h.node.NetAddr()
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c, err := client.New(h.key,
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client.WithAddress(addr),
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)
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if err != nil {
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return errors.Wrapf(err, "(%T) could not create SDK client %s", h, addr)
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}
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hashes := make([][]byte, 0, len(prm.rngs))
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p := new(client.RangeChecksumParams).
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WithAddress(prm.addr).
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WithSalt(prm.salt).
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WithRangeList(prm.rngs...)
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opts := []client.CallOption{
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client.WithTTL(1), // FIXME: use constant
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}
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switch prm.typ {
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default:
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panic(fmt.Sprintf("unexpected checksum type %v", prm.typ))
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case pkg.ChecksumSHA256:
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v, err := c.ObjectPayloadRangeSHA256(ctx, p, opts...)
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if err != nil {
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return errors.Wrapf(err, "(%T) could not get SHA256 checksum from %s", h, addr)
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}
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for i := range v {
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hashes = append(hashes, v[i][:])
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}
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case pkg.ChecksumTZ:
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v, err := c.ObjectPayloadRangeTZ(ctx, p, opts...)
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if err != nil {
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return errors.Wrapf(err, "(%T) could not get Tillich-Zemor checksum from %s", h, addr)
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}
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for i := range v {
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hashes = append(hashes, v[i][:])
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}
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}
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handler(hashes)
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return nil
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}
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