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// Copyright 2020 The Swarm Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package soc_test
import (
"bytes"
"encoding/binary"
"encoding/hex"
"errors"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethersphere/bee/pkg/cac"
"github.com/ethersphere/bee/pkg/crypto"
"github.com/ethersphere/bee/pkg/soc"
"github.com/ethersphere/bee/pkg/swarm"
)
func TestNew(t *testing.T) {
payload := []byte("foo")
ch, err := cac.New(payload)
if err != nil {
t.Fatal(err)
}
id := make([]byte, soc.IdSize)
s := soc.New(id, ch)
// check SOC fields
if !bytes.Equal(s.ID(), id) {
t.Fatalf("id mismatch. got %x want %x", s.ID(), id)
}
chunkData := s.WrappedChunk().Data()
spanBytes := make([]byte, swarm.SpanSize)
binary.LittleEndian.PutUint64(spanBytes, uint64(len(payload)))
if !bytes.Equal(chunkData[:swarm.SpanSize], spanBytes) {
t.Fatalf("span mismatch. got %x want %x", chunkData[:swarm.SpanSize], spanBytes)
}
if !bytes.Equal(chunkData[swarm.SpanSize:], payload) {
t.Fatalf("payload mismatch. got %x want %x", chunkData[swarm.SpanSize:], payload)
}
}
func TestNewSigned(t *testing.T) {
owner := common.HexToAddress("8d3766440f0d7b949a5e32995d09619a7f86e632")
// signature of hash(id + chunk address of foo)
sig, err := hex.DecodeString("5acd384febc133b7b245e5ddc62d82d2cded9182d2716126cd8844509af65a053deb418208027f548e3e88343af6f84a8772fb3cebc0a1833a0ea7ec0c1348311b")
if err != nil {
t.Fatal(err)
}
payload := []byte("foo")
ch, err := cac.New(payload)
if err != nil {
t.Fatal(err)
}
id := make([]byte, soc.IdSize)
s, err := soc.NewSigned(id, ch, owner.Bytes(), sig)
if err != nil {
t.Fatal(err)
}
// check signed SOC fields
if !bytes.Equal(s.ID(), id) {
t.Fatalf("id mismatch. got %x want %x", s.ID(), id)
}
if !bytes.Equal(s.OwnerAddress(), owner.Bytes()) {
t.Fatalf("owner mismatch. got %x want %x", s.OwnerAddress(), owner.Bytes())
}
if !bytes.Equal(s.Signature(), sig) {
t.Fatalf("signature mismatch. got %x want %x", s.Signature(), sig)
}
chunkData := s.WrappedChunk().Data()
spanBytes := make([]byte, swarm.SpanSize)
binary.LittleEndian.PutUint64(spanBytes, uint64(len(payload)))
if !bytes.Equal(chunkData[:swarm.SpanSize], spanBytes) {
t.Fatalf("span mismatch. got %x want %x", chunkData[:swarm.SpanSize], spanBytes)
}
if !bytes.Equal(chunkData[swarm.SpanSize:], payload) {
t.Fatalf("payload mismatch. got %x want %x", chunkData[swarm.SpanSize:], payload)
}
}
// TestChunk verifies that the chunk created from the SOC object
// corresponds to the SOC spec.
func TestChunk(t *testing.T) {
owner := common.HexToAddress("8d3766440f0d7b949a5e32995d09619a7f86e632")
sig, err := hex.DecodeString("5acd384febc133b7b245e5ddc62d82d2cded9182d2716126cd8844509af65a053deb418208027f548e3e88343af6f84a8772fb3cebc0a1833a0ea7ec0c1348311b")
if err != nil {
t.Fatal(err)
}
payload := []byte("foo")
ch, err := cac.New(payload)
if err != nil {
t.Fatal(err)
}
id := make([]byte, soc.IdSize)
// creates a new signed SOC
s, err := soc.NewSigned(id, ch, owner.Bytes(), sig)
if err != nil {
t.Fatal(err)
}
sum, err := soc.Hash(id, owner.Bytes())
if err != nil {
t.Fatal(err)
}
expectedSOCAddress := swarm.NewAddress(sum)
// creates SOC chunk
sch, err := s.Chunk()
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(sch.Address().Bytes(), expectedSOCAddress.Bytes()) {
t.Fatalf("soc address mismatch. got %x want %x", sch.Address().Bytes(), expectedSOCAddress.Bytes())
}
chunkData := sch.Data()
// verifies that id, signature, payload is in place in the SOC chunk
cursor := 0
if !bytes.Equal(chunkData[cursor:soc.IdSize], id) {
t.Fatalf("id mismatch. got %x want %x", chunkData[cursor:soc.IdSize], id)
}
cursor += soc.IdSize
signature := chunkData[cursor : cursor+soc.SignatureSize]
if !bytes.Equal(signature, sig) {
t.Fatalf("signature mismatch. got %x want %x", signature, sig)
}
cursor += soc.SignatureSize
spanBytes := make([]byte, swarm.SpanSize)
binary.LittleEndian.PutUint64(spanBytes, uint64(len(payload)))
if !bytes.Equal(chunkData[cursor:cursor+swarm.SpanSize], spanBytes) {
t.Fatalf("span mismatch. got %x want %x", chunkData[cursor:cursor+swarm.SpanSize], spanBytes)
}
cursor += swarm.SpanSize
if !bytes.Equal(chunkData[cursor:], payload) {
t.Fatalf("payload mismatch. got %x want %x", chunkData[cursor:], payload)
}
}
func TestChunkErrorWithoutOwner(t *testing.T) {
payload := []byte("foo")
ch, err := cac.New(payload)
if err != nil {
t.Fatal(err)
}
id := make([]byte, soc.IdSize)
// creates a new soc
s := soc.New(id, ch)
_, err = s.Chunk()
if !errors.Is(err, soc.ErrInvalidAddress) {
t.Fatalf("expect error. got `%v` want `%v`", err, soc.ErrInvalidAddress)
}
}
// TestSign tests whether a soc is correctly signed.
func TestSign(t *testing.T) {
privKey, err := crypto.GenerateSecp256k1Key()
if err != nil {
t.Fatal(err)
}
signer := crypto.NewDefaultSigner(privKey)
payload := []byte("foo")
ch, err := cac.New(payload)
if err != nil {
t.Fatal(err)
}
id := make([]byte, soc.IdSize)
// creates the soc
s := soc.New(id, ch)
// signs the chunk
sch, err := s.Sign(signer)
if err != nil {
t.Fatal(err)
}
chunkData := sch.Data()
// get signature in the chunk
cursor := soc.IdSize
signature := chunkData[cursor : cursor+soc.SignatureSize]
// get the public key of the signer
publicKey, err := signer.PublicKey()
if err != nil {
t.Fatal(err)
}
owner, err := crypto.NewEthereumAddress(*publicKey)
if err != nil {
t.Fatal(err)
}
toSignBytes, err := soc.Hash(id, ch.Address().Bytes())
if err != nil {
t.Fatal(err)
}
// verifies if the owner matches
recoveredOwner, err := soc.RecoverAddress(signature, toSignBytes)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(recoveredOwner, owner) {
t.Fatalf("owner address mismatch. got %x want %x", recoveredOwner, owner)
}
}
// TestFromChunk verifies that valid chunk data deserializes to
// a fully populated soc object.
func TestFromChunk(t *testing.T) {
socAddress := swarm.MustParseHexAddress("9d453ebb73b2fedaaf44ceddcf7a0aa37f3e3d6453fea5841c31f0ea6d61dc85")
// signed soc chunk of:
// id: 0
// wrapped chunk of: `foo`
// owner: 0x8d3766440f0d7b949a5e32995d09619a7f86e632
sch := swarm.NewChunk(socAddress, []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 90, 205, 56, 79, 235, 193, 51, 183, 178, 69, 229, 221, 198, 45, 130, 210, 205, 237, 145, 130, 210, 113, 97, 38, 205, 136, 68, 80, 154, 246, 90, 5, 61, 235, 65, 130, 8, 2, 127, 84, 142, 62, 136, 52, 58, 246, 248, 74, 135, 114, 251, 60, 235, 192, 161, 131, 58, 14, 167, 236, 12, 19, 72, 49, 27, 3, 0, 0, 0, 0, 0, 0, 0, 102, 111, 111})
cursor := soc.IdSize + soc.SignatureSize
data := sch.Data()
id := data[:soc.IdSize]
sig := data[soc.IdSize:cursor]
chunkData := data[cursor:]
chunkAddress := swarm.MustParseHexAddress("2387e8e7d8a48c2a9339c97c1dc3461a9a7aa07e994c5cb8b38fd7c1b3e6ea48")
ch := swarm.NewChunk(chunkAddress, chunkData)
signedDigest, err := soc.Hash(id, ch.Address().Bytes())
if err != nil {
t.Fatal(err)
}
ownerAddress, err := soc.RecoverAddress(sig, signedDigest)
if err != nil {
t.Fatal(err)
}
// attempt to recover soc from signed chunk
recoveredSOC, err := soc.FromChunk(sch)
if err != nil {
t.Fatal(err)
}
// owner matching means the address was successfully recovered from
// payload and signature
if !bytes.Equal(recoveredSOC.OwnerAddress(), ownerAddress) {
t.Fatalf("owner address mismatch. got %x want %x", recoveredSOC.OwnerAddress(), ownerAddress)
}
if !bytes.Equal(recoveredSOC.ID(), id) {
t.Fatalf("id mismatch. got %x want %x", recoveredSOC.ID(), id)
}
if !bytes.Equal(recoveredSOC.Signature(), sig) {
t.Fatalf("signature mismatch. got %x want %x", recoveredSOC.Signature(), sig)
}
if !ch.Equal(recoveredSOC.WrappedChunk()) {
t.Fatalf("wrapped chunk mismatch. got %s want %s", recoveredSOC.WrappedChunk().Address(), ch.Address())
}
}
func TestCreateAddress(t *testing.T) {
id := make([]byte, soc.IdSize)
owner := common.HexToAddress("8d3766440f0d7b949a5e32995d09619a7f86e632")
socAddress := swarm.MustParseHexAddress("9d453ebb73b2fedaaf44ceddcf7a0aa37f3e3d6453fea5841c31f0ea6d61dc85")
addr, err := soc.CreateAddress(id, owner.Bytes())
if err != nil {
t.Fatal(err)
}
if !addr.Equal(socAddress) {
t.Fatalf("soc address mismatch. got %s want %s", addr, socAddress)
}
}
func TestRecoverAddress(t *testing.T) {
owner := common.HexToAddress("8d3766440f0d7b949a5e32995d09619a7f86e632")
id := make([]byte, soc.IdSize)
chunkAddress := swarm.MustParseHexAddress("2387e8e7d8a48c2a9339c97c1dc3461a9a7aa07e994c5cb8b38fd7c1b3e6ea48")
signedDigest, err := soc.Hash(id, chunkAddress.Bytes())
if err != nil {
t.Fatal(err)
}
sig, err := hex.DecodeString("5acd384febc133b7b245e5ddc62d82d2cded9182d2716126cd8844509af65a053deb418208027f548e3e88343af6f84a8772fb3cebc0a1833a0ea7ec0c1348311b")
if err != nil {
t.Fatal(err)
}
// attempt to recover address from signature
addr, err := soc.RecoverAddress(sig, signedDigest)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(addr, owner.Bytes()) {
t.Fatalf("owner address mismatch. got %x want %x", addr, owner.Bytes())
}
}