frostfs-node/pkg/innerring/processors/audit/processor.go

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package audit
import (
"context"
"crypto/ecdsa"
"errors"
"fmt"
"time"
SDKClient "github.com/nspcc-dev/neofs-api-go/pkg/client"
wrapContainer "github.com/nspcc-dev/neofs-node/pkg/morph/client/container/wrapper"
wrapNetmap "github.com/nspcc-dev/neofs-node/pkg/morph/client/netmap/wrapper"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
"github.com/nspcc-dev/neofs-node/pkg/network"
"github.com/nspcc-dev/neofs-node/pkg/services/audit"
"github.com/panjf2000/ants/v2"
"go.uber.org/zap"
)
type (
// Indexer is a callback interface for inner ring global state.
Indexer interface {
InnerRingIndex() int
InnerRingSize() int
}
// NeoFSClientCache is an interface for cache of neofs RPC clients
NeoFSClientCache interface {
Get(address network.Address) (SDKClient.Client, error)
}
TaskManager interface {
PushTask(*audit.Task) error
// Must skip all tasks planned for execution and
// return their number.
Reset() int
}
// Processor of events related with data audit.
Processor struct {
log *zap.Logger
pool *ants.Pool
irList Indexer
clientCache NeoFSClientCache
key *ecdsa.PrivateKey
searchTimeout time.Duration
containerClient *wrapContainer.Wrapper
netmapClient *wrapNetmap.Wrapper
taskManager TaskManager
reporter audit.Reporter
prevAuditCanceler context.CancelFunc
}
// Params of the processor constructor.
Params struct {
Log *zap.Logger
NetmapClient *wrapNetmap.Wrapper
ContainerClient *wrapContainer.Wrapper
IRList Indexer
ClientCache NeoFSClientCache
RPCSearchTimeout time.Duration
TaskManager TaskManager
Reporter audit.Reporter
Key *ecdsa.PrivateKey
}
)
type epochAuditReporter struct {
epoch uint64
rep audit.Reporter
}
// ProcessorPoolSize limits pool size for audit Processor. Processor manages
// audit tasks and fills queue for next epoch. This process must not be interrupted
// by new audit epoch, so we limit pool size for processor to one.
const ProcessorPoolSize = 1
// New creates audit processor instance.
func New(p *Params) (*Processor, error) {
switch {
case p.Log == nil:
return nil, errors.New("ir/audit: logger is not set")
case p.IRList == nil:
return nil, errors.New("ir/audit: global state is not set")
case p.ClientCache == nil:
return nil, errors.New("ir/audit: neofs RPC client cache is not set")
case p.TaskManager == nil:
return nil, errors.New("ir/audit: audit task manager is not set")
case p.Reporter == nil:
return nil, errors.New("ir/audit: audit result reporter is not set")
case p.Key == nil:
return nil, errors.New("ir/audit: signing key is not set")
}
pool, err := ants.NewPool(ProcessorPoolSize, ants.WithNonblocking(true))
if err != nil {
return nil, fmt.Errorf("ir/audit: can't create worker pool: %w", err)
}
return &Processor{
log: p.Log,
pool: pool,
containerClient: p.ContainerClient,
irList: p.IRList,
clientCache: p.ClientCache,
key: p.Key,
searchTimeout: p.RPCSearchTimeout,
netmapClient: p.NetmapClient,
taskManager: p.TaskManager,
reporter: p.Reporter,
prevAuditCanceler: func() {},
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (ap *Processor) ListenerParsers() []event.ParserInfo {
return nil
}
// ListenerHandlers for the 'event.Listener' event producer.
func (ap *Processor) ListenerHandlers() []event.HandlerInfo {
return nil
}
// TimersHandlers for the 'Timers' event producer.
func (ap *Processor) TimersHandlers() []event.HandlerInfo {
return nil
}
// StartAuditHandler for the internal event producer.
func (ap *Processor) StartAuditHandler() event.Handler {
return ap.handleNewAuditRound
}
func (r *epochAuditReporter) WriteReport(rep *audit.Report) error {
res := rep.Result()
res.SetAuditEpoch(r.epoch)
return r.rep.WriteReport(rep)
}