prysm-pulse/beacon-chain/rpc/apimiddleware/custom_hooks.go
Radosław Kapka 456b4d463e
Implement PrepareBeaconCommitteeSubnet in the validator API (#9318)
* validator migration

* status helpers

* implementation

* fix existing tests

* build file

* tests

* run endpoint through API Middleware

* reduce helper package visibility

* empty caches before each test

* assign all validators to subnets

Co-authored-by: Nishant Das <nishdas93@gmail.com>
2021-08-05 07:23:52 +00:00

94 lines
4.0 KiB
Go

package apimiddleware
import (
"bytes"
"encoding/json"
"io/ioutil"
"net/http"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/prysmaticlabs/prysm/shared/bytesutil"
"github.com/prysmaticlabs/prysm/shared/gateway"
)
// https://ethereum.github.io/eth2.0-APIs/#/Beacon/submitPoolAttestations expects posting a top-level array.
// We make it more proto-friendly by wrapping it in a struct with a 'data' field.
func wrapAttestationsArray(endpoint gateway.Endpoint, _ http.ResponseWriter, req *http.Request) gateway.ErrorJson {
if _, ok := endpoint.PostRequest.(*submitAttestationRequestJson); ok {
atts := make([]*attestationJson, 0)
if err := json.NewDecoder(req.Body).Decode(&atts); err != nil {
return gateway.InternalServerErrorWithMessage(err, "could not decode body")
}
j := &submitAttestationRequestJson{Data: atts}
b, err := json.Marshal(j)
if err != nil {
return gateway.InternalServerErrorWithMessage(err, "could not marshal wrapped body")
}
req.Body = ioutil.NopCloser(bytes.NewReader(b))
}
return nil
}
// https://ethereum.github.io/eth2.0-APIs/#/Validator/getAttesterDuties expects posting a top-level array.
// We make it more proto-friendly by wrapping it in a struct with an 'index' field.
func wrapValidatorIndicesArray(endpoint gateway.Endpoint, _ http.ResponseWriter, req *http.Request) gateway.ErrorJson {
if _, ok := endpoint.PostRequest.(*attesterDutiesRequestJson); ok {
indices := make([]string, 0)
if err := json.NewDecoder(req.Body).Decode(&indices); err != nil {
return gateway.InternalServerErrorWithMessage(err, "could not decode body")
}
j := &attesterDutiesRequestJson{Index: indices}
b, err := json.Marshal(j)
if err != nil {
return gateway.InternalServerErrorWithMessage(err, "could not marshal wrapped body")
}
req.Body = ioutil.NopCloser(bytes.NewReader(b))
}
return nil
}
// https://ethereum.github.io/eth2.0-APIs/#/Validator/publishAggregateAndProofs expects posting a top-level array.
// We make it more proto-friendly by wrapping it in a struct with a 'data' field.
func wrapSignedAggregateAndProofArray(endpoint gateway.Endpoint, _ http.ResponseWriter, req *http.Request) gateway.ErrorJson {
if _, ok := endpoint.PostRequest.(*submitAggregateAndProofsRequestJson); ok {
data := make([]*signedAggregateAttestationAndProofJson, 0)
if err := json.NewDecoder(req.Body).Decode(&data); err != nil {
return gateway.InternalServerErrorWithMessage(err, "could not decode body")
}
j := &submitAggregateAndProofsRequestJson{Data: data}
b, err := json.Marshal(j)
if err != nil {
return gateway.InternalServerErrorWithMessage(err, "could not marshal wrapped body")
}
req.Body = ioutil.NopCloser(bytes.NewReader(b))
}
return nil
}
// https://ethereum.github.io/eth2.0-APIs/#/Validator/prepareBeaconCommitteeSubnet expects posting a top-level array.
// We make it more proto-friendly by wrapping it in a struct with a 'data' field.
func wrapBeaconCommitteeSubscriptionsArray(endpoint gateway.Endpoint, _ http.ResponseWriter, req *http.Request) gateway.ErrorJson {
if _, ok := endpoint.PostRequest.(*submitBeaconCommitteeSubscriptionsRequestJson); ok {
data := make([]*beaconCommitteeSubscribeJson, 0)
if err := json.NewDecoder(req.Body).Decode(&data); err != nil {
return gateway.InternalServerErrorWithMessage(err, "could not decode body")
}
j := &submitBeaconCommitteeSubscriptionsRequestJson{Data: data}
b, err := json.Marshal(j)
if err != nil {
return gateway.InternalServerErrorWithMessage(err, "could not marshal wrapped body")
}
req.Body = ioutil.NopCloser(bytes.NewReader(b))
}
return nil
}
// Posted graffiti needs to have length of 32 bytes, but client is allowed to send data of any length.
func prepareGraffiti(endpoint gateway.Endpoint, _ http.ResponseWriter, _ *http.Request) gateway.ErrorJson {
if block, ok := endpoint.PostRequest.(*beaconBlockContainerJson); ok {
b := bytesutil.ToBytes32([]byte(block.Message.Body.Graffiti))
block.Message.Body.Graffiti = hexutil.Encode(b[:])
}
return nil
}