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heartbeatMessageValidator.go
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/
heartbeatMessageValidator.go
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package process
import (
"fmt"
"github.com/ElrondNetwork/elrond-go/heartbeat"
"github.com/ElrondNetwork/elrond-go/heartbeat/data"
)
const maxSizeInBytes = 128
func verifyLengths(heartbeat *data.Heartbeat) error {
err := VerifyHeartbeatProperyLen("Pubkey", heartbeat.Pubkey)
if err != nil {
return err
}
err = VerifyHeartbeatProperyLen("Payload", heartbeat.Payload)
if err != nil {
return err
}
err = VerifyHeartbeatProperyLen("NodeDisplayName", []byte(heartbeat.NodeDisplayName))
if err != nil {
return err
}
err = VerifyHeartbeatProperyLen("Identity", []byte(heartbeat.Identity))
if err != nil {
return err
}
err = VerifyHeartbeatProperyLen("VersionNumber", []byte(heartbeat.VersionNumber))
if err != nil {
return err
}
err = VerifyHeartbeatProperyLen("Signature", heartbeat.Signature)
if err != nil {
return err
}
return nil
}
// VerifyHeartbeatProperyLen returns an error if the provided value is longer than accepted by the network
func VerifyHeartbeatProperyLen(property string, value []byte) error {
if len(value) > maxSizeInBytes {
return fmt.Errorf("%w for %s", heartbeat.ErrPropertyTooLong, property)
}
return nil
}
func trimLengths(heartbeat *data.Heartbeat) {
if len(heartbeat.Payload) > maxSizeInBytes {
heartbeat.Payload = heartbeat.Payload[:maxSizeInBytes]
}
if len(heartbeat.NodeDisplayName) > maxSizeInBytes {
heartbeat.NodeDisplayName = heartbeat.NodeDisplayName[:maxSizeInBytes]
}
if len(heartbeat.Identity) > maxSizeInBytes {
heartbeat.Identity = heartbeat.Identity[:maxSizeInBytes]
}
if len(heartbeat.VersionNumber) > maxSizeInBytes {
heartbeat.VersionNumber = heartbeat.VersionNumber[:maxSizeInBytes]
}
}