68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package pointerdb
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import (
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"context"
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"time"
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"github.com/gogo/protobuf/proto"
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"github.com/skyrings/skyring-common/tools/uuid"
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"storj.io/storj/pkg/auth"
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"storj.io/storj/pkg/identity"
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"storj.io/storj/pkg/pb"
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)
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// AllocationSigner structure
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type AllocationSigner struct {
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satelliteIdentity *identity.FullIdentity
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bwExpiration int
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}
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// NewAllocationSigner creates new instance
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func NewAllocationSigner(satelliteIdentity *identity.FullIdentity, bwExpiration int) *AllocationSigner {
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return &AllocationSigner{
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satelliteIdentity: satelliteIdentity,
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bwExpiration: bwExpiration,
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}
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}
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// PayerBandwidthAllocation returns generated payer bandwidth allocation
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func (allocation *AllocationSigner) PayerBandwidthAllocation(ctx context.Context, peerIdentity *identity.PeerIdentity, action pb.PayerBandwidthAllocation_Action) (pba *pb.PayerBandwidthAllocation, err error) {
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if peerIdentity == nil {
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return nil, Error.New("missing peer identity")
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}
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serialNum, err := uuid.New()
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if err != nil {
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return nil, err
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}
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created := time.Now().Unix()
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// convert ttl from days to seconds
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ttl := allocation.bwExpiration
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ttl *= 86400
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pbad := &pb.PayerBandwidthAllocation_Data{
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SatelliteId: allocation.satelliteIdentity.ID,
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UplinkId: peerIdentity.ID,
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CreatedUnixSec: created,
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ExpirationUnixSec: created + int64(ttl),
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Action: action,
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SerialNumber: serialNum.String(),
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}
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data, err := proto.Marshal(pbad)
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if err != nil {
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return nil, err
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}
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signature, err := auth.GenerateSignature(data, allocation.satelliteIdentity)
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if err != nil {
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return nil, err
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}
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certs := allocation.satelliteIdentity.ChainRaw()
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return &pb.PayerBandwidthAllocation{Signature: signature, Data: data, Certs: certs}, nil
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}
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