150 lines
3.8 KiB
Go
150 lines
3.8 KiB
Go
package intermediate
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import (
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"crypto/ecdsa"
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"encoding/hex"
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"fmt"
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repClient "github.com/nspcc-dev/neofs-node/pkg/morph/client/reputation"
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"github.com/nspcc-dev/neofs-node/pkg/services/reputation/eigentrust"
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eigentrustcalc "github.com/nspcc-dev/neofs-node/pkg/services/reputation/eigentrust/calculator"
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"github.com/nspcc-dev/neofs-node/pkg/util/logger"
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apireputation "github.com/nspcc-dev/neofs-sdk-go/reputation"
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"go.uber.org/zap"
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)
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// FinalWriterProviderPrm groups the required parameters of the FinalWriterProvider's constructor.
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//
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// All values must comply with the requirements imposed on them.
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// Passing incorrect parameter values will result in constructor
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// failure (error or panic depending on the implementation).
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type FinalWriterProviderPrm struct {
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PrivatKey *ecdsa.PrivateKey
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PubKey []byte
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Client *repClient.Client
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}
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// NewFinalWriterProvider creates a new instance of the FinalWriterProvider.
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//
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// Panics if at least one value of the parameters is invalid.
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//
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// The created FinalWriterProvider does not require additional
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// initialization and is completely ready for work.
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func NewFinalWriterProvider(prm FinalWriterProviderPrm, opts ...FinalWriterOption) *FinalWriterProvider {
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o := defaultFinalWriterOptionsOpts()
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for i := range opts {
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opts[i](o)
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}
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return &FinalWriterProvider{
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prm: prm,
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opts: o,
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}
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}
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// FinalWriterProvider is implementation of reputation.eigentrust.calculator
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// IntermediateWriterProvider interface. It inits FinalWriter.
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type FinalWriterProvider struct {
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prm FinalWriterProviderPrm
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opts *finalWriterOptions
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}
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func (fwp FinalWriterProvider) InitIntermediateWriter(
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_ eigentrustcalc.Context) (eigentrustcalc.IntermediateWriter, error) {
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return &FinalWriter{
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privatKey: fwp.prm.PrivatKey,
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pubKey: fwp.prm.PubKey,
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client: fwp.prm.Client,
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l: fwp.opts.log,
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}, nil
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}
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// FinalWriter is implementation of reputation.eigentrust.calculator IntermediateWriter
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// interface that writes GlobalTrust to contract directly.
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type FinalWriter struct {
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privatKey *ecdsa.PrivateKey
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pubKey []byte
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client *repClient.Client
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l *logger.Logger
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}
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func (fw FinalWriter) WriteIntermediateTrust(t eigentrust.IterationTrust) error {
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fw.l.Debug("start writing global trusts to contract")
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args := repClient.PutPrm{}
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var trustedPublicKey [33]byte
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copy(trustedPublicKey[:], t.Peer().Bytes())
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apiTrustedPeerID := apireputation.NewPeerID()
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apiTrustedPeerID.SetPublicKey(trustedPublicKey)
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apiTrust := apireputation.NewTrust()
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apiTrust.SetValue(t.Value().Float64())
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apiTrust.SetPeer(apiTrustedPeerID)
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var managerPublicKey [33]byte
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copy(managerPublicKey[:], fw.pubKey)
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apiMangerPeerID := apireputation.NewPeerID()
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apiMangerPeerID.SetPublicKey(managerPublicKey)
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gTrust := apireputation.NewGlobalTrust()
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gTrust.SetTrust(apiTrust)
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gTrust.SetManager(apiMangerPeerID)
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err := gTrust.Sign(fw.privatKey)
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if err != nil {
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fw.l.Debug(
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"failed to sign global trust",
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zap.Error(err),
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)
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return fmt.Errorf("failed to sign global trust: %w", err)
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}
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args.SetEpoch(t.Epoch())
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args.SetValue(*gTrust)
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args.SetPeerID(*apiTrustedPeerID)
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err = fw.client.Put(
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args,
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)
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if err != nil {
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fw.l.Debug(
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"failed to write global trust to contract",
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zap.Error(err),
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)
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return fmt.Errorf("failed to write global trust to contract: %w", err)
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}
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fw.l.Debug(
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"sent global trust to contract",
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zap.Uint64("epoch", t.Epoch()),
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zap.Float64("value", t.Value().Float64()),
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zap.String("peer", hex.EncodeToString(t.Peer().Bytes())),
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)
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return nil
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}
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type finalWriterOptions struct {
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log *logger.Logger
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}
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type FinalWriterOption func(*finalWriterOptions)
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func defaultFinalWriterOptionsOpts() *finalWriterOptions {
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return &finalWriterOptions{
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log: zap.L(),
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}
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}
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func FinalWriterWithLogger(l *logger.Logger) FinalWriterOption {
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return func(o *finalWriterOptions) {
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if l != nil {
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o.log = l
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}
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}
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}
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