plugeth/cmd/devp2p/internal/ethtest/engine.go
lightclient 577be37e0e
cmd/devp2p: update eth/snap protocol test suites for PoS (#28340)
Here we update the eth and snap protocol test suites with a new test chain,
created by the hivechain tool. The new test chain uses proof-of-stake. As such,
tests using PoW block propagation in the eth protocol are removed. The test suite
now connects to the node under test using the engine API in order to make it
accept transactions. 

The snap protocol test suite has been rewritten to output test descriptions and
log requests more verbosely.

---------

Co-authored-by: Felix Lange <fjl@twurst.com>
2023-12-20 17:23:48 +01:00

70 lines
2.1 KiB
Go

// Copyright 2023 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package ethtest
import (
"bytes"
"fmt"
"io"
"net/http"
"os"
"path"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/golang-jwt/jwt/v4"
)
// EngineClient is a wrapper around engine-related data.
type EngineClient struct {
url string
jwt [32]byte
headfcu []byte
}
// NewEngineClient creates a new engine client.
func NewEngineClient(dir, url, jwt string) (*EngineClient, error) {
headfcu, err := os.ReadFile(path.Join(dir, "headfcu.json"))
if err != nil {
return nil, fmt.Errorf("failed to read headfcu: %w", err)
}
return &EngineClient{url, common.HexToHash(jwt), headfcu}, nil
}
// token returns the jwt claim token for authorization.
func (ec *EngineClient) token() string {
claims := jwt.RegisteredClaims{IssuedAt: jwt.NewNumericDate(time.Now())}
token, _ := jwt.NewWithClaims(jwt.SigningMethodHS256, claims).SignedString(ec.jwt[:])
return token
}
// sendForkchoiceUpdated sends an fcu for the head of the generated chain.
func (ec *EngineClient) sendForkchoiceUpdated() error {
var (
req, _ = http.NewRequest(http.MethodPost, ec.url, io.NopCloser(bytes.NewReader(ec.headfcu)))
header = make(http.Header)
)
// Set header
header.Set("accept", "application/json")
header.Set("content-type", "application/json")
header.Set("Authorization", fmt.Sprintf("Bearer %v", ec.token()))
req.Header = header
_, err := new(http.Client).Do(req)
return err
}