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handle_meta.go
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/
handle_meta.go
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package handlers
import (
"context"
"reflect"
"github.com/insolar/assured-ledger/ledger-core/conveyor/smachine"
"github.com/insolar/assured-ledger/ledger-core/insolar/defaults"
"github.com/insolar/assured-ledger/ledger-core/instrumentation/insconveyor"
"github.com/insolar/assured-ledger/ledger-core/instrumentation/inslogger"
"github.com/insolar/assured-ledger/ledger-core/pulse"
"github.com/insolar/assured-ledger/ledger-core/reference"
"github.com/insolar/assured-ledger/ledger-core/rms"
"github.com/insolar/assured-ledger/ledger-core/vanilla/throw"
"github.com/insolar/assured-ledger/ledger-core/virtual/authentication"
)
type FactoryMeta struct {
LogContextOverride context.Context
AuthService authentication.Service
}
type skippedMessage struct {
messageType reflect.Type
incomingPulse pulse.Number
targetPulse pulse.Number
}
func (f FactoryMeta) Process(ctx context.Context, msg insconveyor.DispatchedMessage, pr pulse.Range) (pulse.Number, smachine.CreateFunc, error) {
payloadMeta := &msg.PayloadMeta
messageMeta := msg.MessageMeta
traceID := messageMeta.Get(defaults.TraceID)
if traceID == "" {
panic(throw.FailHere("TraceID is empty"))
}
logCtx := f.LogContextOverride
if logCtx == nil {
logCtx = ctx
}
logCtx, logger := inslogger.WithTraceField(logCtx, traceID)
var (
payloadObj = payloadMeta.Payload.Get()
payloadType = reflect.Indirect(reflect.ValueOf(payloadObj)).Type()
sender = payloadMeta.Sender.GetValue()
)
logger.Infom(struct {
Message string
PayloadType reflect.Type
Source, Target reference.Holder
}{
"processing message",
payloadType,
sender,
payloadMeta.Receiver.GetValue(),
})
targetPulse := pr.RightBoundData().PulseNumber
if targetPulse != payloadMeta.Pulse {
panic(throw.Impossible())
}
// don't check sender for future pulses in R0
switch payloadObj.(type) {
case *rms.LRegisterResponse:
// TODO: do nothing for now, message from ledger
case *rms.LRegisterRequest:
panic(throw.Impossible())
default:
if pr.RightBoundData().IsExpectedPulse() {
break
}
mustReject, err := f.AuthService.CheckMessageFromAuthorizedVirtual(logCtx, payloadObj, sender, pr)
if err != nil {
logger.Warn(throw.W(err, "illegitimate msg", skippedMessage{
messageType: payloadType,
incomingPulse: payloadMeta.Pulse,
targetPulse: targetPulse,
}))
return pulse.Unknown, nil, nil
}
if mustReject {
logger.Warn(throw.W(err, "rejected msg", skippedMessage{
messageType: payloadType,
incomingPulse: payloadMeta.Pulse,
targetPulse: targetPulse,
}))
// when this flag is set, then the relevant SM has to stop asap and send negative answer
return pulse.Unknown, nil, throw.NotImplemented()
}
}
// validate message field invariants
if p, ok := payloadObj.(rms.Validatable); ok {
if err := p.Validate(targetPulse); err != nil {
logger.Warn(throw.W(err, "invalid msg", skippedMessage{
messageType: payloadType,
incomingPulse: payloadMeta.Pulse,
targetPulse: targetPulse,
}))
return pulse.Unknown, nil, nil
}
}
if pn, sm := func() (pulse.Number, smachine.StateMachine) {
switch obj := payloadObj.(type) {
case *rms.VCallRequest:
return targetPulse, &SMVCallRequest{Meta: payloadMeta, Payload: obj}
case *rms.VCallResult:
return targetPulse, &SMVCallResult{Meta: payloadMeta, Payload: obj}
case *rms.VStateRequest:
return obj.AsOf, &SMVStateRequest{Meta: payloadMeta, Payload: obj}
case *rms.VStateReport:
return targetPulse, &SMVStateReport{Meta: payloadMeta, Payload: obj}
case *rms.VDelegatedRequestFinished:
return targetPulse, &SMVDelegatedRequestFinished{Meta: payloadMeta, Payload: obj}
case *rms.VDelegatedCallRequest:
return targetPulse, &SMVDelegatedCallRequest{Meta: payloadMeta, Payload: obj}
case *rms.VDelegatedCallResponse:
return targetPulse, &SMVDelegatedCallResponse{Meta: payloadMeta, Payload: obj}
case *rms.VFindCallRequest:
return obj.LookAt, &SMVFindCallRequest{Meta: payloadMeta, Payload: obj}
case *rms.VFindCallResponse:
return targetPulse, &SMVFindCallResponse{Meta: payloadMeta, Payload: obj}
case *rms.VObjectTranscriptReport:
return targetPulse, &SMVObjectTranscriptReport{Meta: payloadMeta, Payload: obj}
case *rms.VCachedMemoryRequest:
return targetPulse, &SMVCachedMemoryRequest{Meta: payloadMeta, Payload: obj}
case *rms.VObjectValidationReport:
return obj.In, &SMVObjectValidationReport{Meta: payloadMeta, Payload: obj}
case *rms.LRegisterResponse:
return targetPulse, &SMLRegisterResponse{Meta: payloadMeta, Payload: obj}
default:
logger.Warnm(struct {
Msg string
PayloadTypeName string
}{"no handler for message type", payloadType.String()})
return 0, nil
}
}(); sm != nil {
return pn, func(constructorCtx smachine.ConstructionContext) smachine.StateMachine {
constructorCtx.SetContext(logCtx)
constructorCtx.SetTracerID(traceID)
return sm
}, nil
}
return pulse.Unknown, nil, nil
}