storj/satellite/vouchers/service.go
JT Olio ccb158c99b
pkg/auth: add monkit task to missing places (#2123)
What: add monkit.Task to a bunch of functions that are missing it

Why: this will significantly help our instrumentation, data collection, and tracing about what's going on in the network
2019-06-05 07:47:01 -06:00

85 lines
2.0 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package vouchers
import (
"context"
"time"
"github.com/golang/protobuf/ptypes"
"github.com/zeebo/errs"
"go.uber.org/zap"
monkit "gopkg.in/spacemonkeygo/monkit.v2"
"storj.io/storj/pkg/auth/signing"
"storj.io/storj/pkg/identity"
"storj.io/storj/pkg/overlay"
"storj.io/storj/pkg/pb"
)
// Config contains voucher service configuration parameters
type Config struct {
Expiration int `help:"number of days before a voucher expires" default:"30"`
}
// Service for issuing signed vouchers
type Service struct {
log *zap.Logger
satellite signing.Signer
cache *overlay.Cache
expiration time.Duration
}
var (
// Error the default vouchers errs class
Error = errs.Class("vouchers error")
mon = monkit.Package()
)
// NewService creates a new service for issuing signed vouchers
func NewService(log *zap.Logger, satellite signing.Signer, cache *overlay.Cache, expiration time.Duration) *Service {
return &Service{
log: log,
satellite: satellite,
cache: cache,
expiration: expiration,
}
}
// Request receives a voucher request and returns a voucher and an error
func (service *Service) Request(ctx context.Context, req *pb.VoucherRequest) (_ *pb.Voucher, err error) {
defer mon.Task()(&ctx)(&err)
peer, err := identity.PeerIdentityFromContext(ctx)
if err != nil {
return &pb.Voucher{}, Error.Wrap(err)
}
reputable, err := service.cache.IsVetted(ctx, peer.ID)
if err != nil {
return &pb.Voucher{}, Error.Wrap(err)
}
service.log.Debug("Node reputation", zap.Bool("reputable", reputable))
if !reputable {
return &pb.Voucher{}, Error.New("Request rejected. Node not reputable")
}
expirationTime := time.Now().UTC().Add(service.expiration)
expiration, err := ptypes.TimestampProto(expirationTime)
if err != nil {
return &pb.Voucher{}, Error.Wrap(err)
}
unsigned := &pb.Voucher{
SatelliteId: service.satellite.ID(),
StorageNodeId: peer.ID,
Expiration: expiration,
}
return signing.SignVoucher(ctx, service.satellite, unsigned)
}