mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-27 03:58:06 +00:00
1d1538c566
Problem: transactions with wrong hashes are accepted to the chain if
consensus nodes are designated as Oracle nodes. The result is wrong
MerkleRoot for the accepted block. Consensus nodes got such blocks
right from the dbft and store them without errors, but if
non-consensus nodes are present in the network, they just can't accept
these "bad" blocks:
```
2021-11-29T12:56:40.533+0300 WARN blockQueue: failed adding block into the blockchain {"error": "invalid block: MerkleRoot mismatch (expected a866b57ad637934f7a7700e3635a549387e644970b42681d865a54c3b3a46122, calculated d465aafabaf4539a3f619d373d178eeeeab7acb9847e746e398706c8c1582bf8)", "blockHeight": 17, "nextIndex": 18}
```
This problem happens because of transaction hash caching. We can't set
transaction hash if transaction construction wasn't yet completed.
495 lines
15 KiB
Go
495 lines
15 KiB
Go
package core
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
gio "io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/url"
|
|
"path"
|
|
"path/filepath"
|
|
"strings"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/config"
|
|
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/native/noderoles"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/state"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
|
|
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
|
|
"github.com/nspcc-dev/neo-go/pkg/services/oracle"
|
|
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
|
|
"github.com/nspcc-dev/neo-go/pkg/util"
|
|
"github.com/nspcc-dev/neo-go/pkg/wallet"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
"go.uber.org/zap/zaptest"
|
|
)
|
|
|
|
var oracleModulePath = filepath.Join("..", "services", "oracle")
|
|
|
|
func getOracleConfig(t *testing.T, bc *Blockchain, w, pass string) oracle.Config {
|
|
return oracle.Config{
|
|
Log: zaptest.NewLogger(t),
|
|
Network: netmode.UnitTestNet,
|
|
MainCfg: config.OracleConfiguration{
|
|
RefreshInterval: time.Second,
|
|
AllowedContentTypes: []string{"application/json"},
|
|
UnlockWallet: config.Wallet{
|
|
Path: filepath.Join(oracleModulePath, w),
|
|
Password: pass,
|
|
},
|
|
},
|
|
Chain: bc,
|
|
Client: newDefaultHTTPClient(),
|
|
}
|
|
}
|
|
|
|
func getTestOracle(t *testing.T, bc *Blockchain, walletPath, pass string) (
|
|
*wallet.Account,
|
|
*oracle.Oracle,
|
|
map[uint64]*responseWithSig,
|
|
chan *transaction.Transaction) {
|
|
m := make(map[uint64]*responseWithSig)
|
|
ch := make(chan *transaction.Transaction, 5)
|
|
orcCfg := getOracleConfig(t, bc, walletPath, pass)
|
|
orcCfg.ResponseHandler = &saveToMapBroadcaster{m: m}
|
|
orcCfg.OnTransaction = saveTxToChan(ch)
|
|
orcCfg.URIValidator = func(u *url.URL) error {
|
|
if strings.HasPrefix(u.Host, "private") {
|
|
return errors.New("private network")
|
|
}
|
|
return nil
|
|
}
|
|
orc, err := oracle.NewOracle(orcCfg)
|
|
require.NoError(t, err)
|
|
|
|
w, err := wallet.NewWalletFromFile(path.Join(oracleModulePath, walletPath))
|
|
require.NoError(t, err)
|
|
require.NoError(t, w.Accounts[0].Decrypt(pass, w.Scrypt))
|
|
return w.Accounts[0], orc, m, ch
|
|
}
|
|
|
|
// Compatibility test from C# code.
|
|
// https://github.com/neo-project/neo-modules/blob/master/tests/Neo.Plugins.OracleService.Tests/UT_OracleService.cs#L61
|
|
func TestCreateResponseTx(t *testing.T) {
|
|
bc := newTestChain(t)
|
|
|
|
require.Equal(t, int64(30), bc.GetBaseExecFee())
|
|
require.Equal(t, int64(1000), bc.FeePerByte())
|
|
acc, orc, _, _ := getTestOracle(t, bc, "./testdata/oracle1.json", "one")
|
|
req := &state.OracleRequest{
|
|
OriginalTxID: util.Uint256{},
|
|
GasForResponse: 100000000,
|
|
URL: "https://127.0.0.1/test",
|
|
Filter: new(string),
|
|
CallbackContract: util.Uint160{},
|
|
CallbackMethod: "callback",
|
|
UserData: []byte{},
|
|
}
|
|
resp := &transaction.OracleResponse{
|
|
ID: 1,
|
|
Code: transaction.Success,
|
|
Result: []byte{0},
|
|
}
|
|
require.NoError(t, bc.contracts.Oracle.PutRequestInternal(1, req, bc.dao))
|
|
orc.UpdateOracleNodes(keys.PublicKeys{acc.PrivateKey().PublicKey()})
|
|
bc.SetOracle(orc)
|
|
tx, err := orc.CreateResponseTx(int64(req.GasForResponse), 1, resp)
|
|
require.NoError(t, err)
|
|
assert.Equal(t, 166, tx.Size())
|
|
assert.Equal(t, int64(2198650), tx.NetworkFee)
|
|
assert.Equal(t, int64(97801350), tx.SystemFee)
|
|
}
|
|
|
|
func TestOracle_InvalidWallet(t *testing.T) {
|
|
bc := newTestChain(t)
|
|
|
|
_, err := oracle.NewOracle(getOracleConfig(t, bc, "./testdata/oracle1.json", "invalid"))
|
|
require.Error(t, err)
|
|
|
|
_, err = oracle.NewOracle(getOracleConfig(t, bc, "./testdata/oracle1.json", "one"))
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestOracle(t *testing.T) {
|
|
bc := newTestChain(t)
|
|
|
|
oracleCtr := bc.contracts.Oracle
|
|
acc1, orc1, m1, ch1 := getTestOracle(t, bc, "./testdata/oracle1.json", "one")
|
|
acc2, orc2, m2, ch2 := getTestOracle(t, bc, "./testdata/oracle2.json", "two")
|
|
oracleNodes := keys.PublicKeys{acc1.PrivateKey().PublicKey(), acc2.PrivateKey().PublicKey()}
|
|
// Must be set in native contract for tx verification.
|
|
bc.setNodesByRole(t, true, noderoles.Oracle, oracleNodes)
|
|
orc1.UpdateOracleNodes(oracleNodes.Copy())
|
|
orc2.UpdateOracleNodes(oracleNodes.Copy())
|
|
|
|
orcNative := bc.contracts.Oracle
|
|
md, ok := orcNative.GetMethod(manifest.MethodVerify, -1)
|
|
require.True(t, ok)
|
|
orc1.UpdateNativeContract(orcNative.NEF.Script, orcNative.GetOracleResponseScript(), orcNative.Hash, md.MD.Offset)
|
|
orc2.UpdateNativeContract(orcNative.NEF.Script, orcNative.GetOracleResponseScript(), orcNative.Hash, md.MD.Offset)
|
|
|
|
cs := getOracleContractState(bc.contracts.Oracle.Hash, bc.contracts.Std.Hash)
|
|
require.NoError(t, bc.contracts.Management.PutContractState(bc.dao, cs))
|
|
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.1234", nil, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.1234", nil, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.timeout", nil, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.notfound", nil, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.forbidden", nil, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://private.url", nil, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.big", nil, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.maxallowed", nil, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.maxallowed", nil, "handle", []byte{}, 100_000_000)
|
|
|
|
flt := "$.Values[1]"
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.filter", &flt, "handle", []byte{}, 10_000_000)
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.filterinv", &flt, "handle", []byte{}, 10_000_000)
|
|
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.invalidcontent", nil, "handle", []byte{}, 10_000_000)
|
|
|
|
checkResp := func(t *testing.T, id uint64, resp *transaction.OracleResponse) *state.OracleRequest {
|
|
req, err := oracleCtr.GetRequestInternal(bc.dao, id)
|
|
require.NoError(t, err)
|
|
|
|
reqs := map[uint64]*state.OracleRequest{id: req}
|
|
orc1.ProcessRequestsInternal(reqs)
|
|
require.NotNil(t, m1[id])
|
|
require.Equal(t, resp, m1[id].resp)
|
|
require.Empty(t, ch1)
|
|
return req
|
|
}
|
|
|
|
// Checks if tx is ready and valid.
|
|
checkEmitTx := func(t *testing.T, ch chan *transaction.Transaction) {
|
|
require.Len(t, ch, 1)
|
|
tx := <-ch
|
|
|
|
// Response transaction has its hash being precalculated. Check that this hash
|
|
// matches the actual one.
|
|
cachedHash := tx.Hash()
|
|
cp := transaction.Transaction{
|
|
Version: tx.Version,
|
|
Nonce: tx.Nonce,
|
|
SystemFee: tx.SystemFee,
|
|
NetworkFee: tx.NetworkFee,
|
|
ValidUntilBlock: tx.ValidUntilBlock,
|
|
Script: tx.Script,
|
|
Attributes: tx.Attributes,
|
|
Signers: tx.Signers,
|
|
Scripts: tx.Scripts,
|
|
Trimmed: tx.Trimmed,
|
|
}
|
|
actualHash := cp.Hash()
|
|
require.Equal(t, actualHash, cachedHash, "transaction hash was changed during ")
|
|
|
|
require.NoError(t, bc.verifyAndPoolTx(tx, bc.GetMemPool(), bc))
|
|
}
|
|
|
|
t.Run("NormalRequest", func(t *testing.T) {
|
|
resp := &transaction.OracleResponse{
|
|
ID: 0,
|
|
Code: transaction.Success,
|
|
Result: []byte{1, 2, 3, 4},
|
|
}
|
|
req := checkResp(t, 0, resp)
|
|
|
|
reqs := map[uint64]*state.OracleRequest{0: req}
|
|
orc2.ProcessRequestsInternal(reqs)
|
|
require.Equal(t, resp, m2[0].resp)
|
|
require.Empty(t, ch2)
|
|
|
|
t.Run("InvalidSignature", func(t *testing.T) {
|
|
orc1.AddResponse(acc2.PrivateKey().PublicKey(), m2[0].resp.ID, []byte{1, 2, 3})
|
|
require.Empty(t, ch1)
|
|
})
|
|
orc1.AddResponse(acc2.PrivateKey().PublicKey(), m2[0].resp.ID, m2[0].txSig)
|
|
checkEmitTx(t, ch1)
|
|
|
|
t.Run("FirstOtherThenMe", func(t *testing.T) {
|
|
const reqID = 1
|
|
|
|
resp := &transaction.OracleResponse{
|
|
ID: reqID,
|
|
Code: transaction.Success,
|
|
Result: []byte{1, 2, 3, 4},
|
|
}
|
|
req := checkResp(t, reqID, resp)
|
|
orc2.AddResponse(acc1.PrivateKey().PublicKey(), reqID, m1[reqID].txSig)
|
|
require.Empty(t, ch2)
|
|
|
|
reqs := map[uint64]*state.OracleRequest{reqID: req}
|
|
orc2.ProcessRequestsInternal(reqs)
|
|
require.Equal(t, resp, m2[reqID].resp)
|
|
checkEmitTx(t, ch2)
|
|
})
|
|
})
|
|
t.Run("Invalid", func(t *testing.T) {
|
|
t.Run("Timeout", func(t *testing.T) {
|
|
checkResp(t, 2, &transaction.OracleResponse{
|
|
ID: 2,
|
|
Code: transaction.Timeout,
|
|
})
|
|
})
|
|
t.Run("NotFound", func(t *testing.T) {
|
|
checkResp(t, 3, &transaction.OracleResponse{
|
|
ID: 3,
|
|
Code: transaction.NotFound,
|
|
})
|
|
})
|
|
t.Run("Forbidden", func(t *testing.T) {
|
|
checkResp(t, 4, &transaction.OracleResponse{
|
|
ID: 4,
|
|
Code: transaction.Forbidden,
|
|
})
|
|
})
|
|
t.Run("PrivateNetwork", func(t *testing.T) {
|
|
checkResp(t, 5, &transaction.OracleResponse{
|
|
ID: 5,
|
|
Code: transaction.Forbidden,
|
|
})
|
|
})
|
|
t.Run("Big", func(t *testing.T) {
|
|
checkResp(t, 6, &transaction.OracleResponse{
|
|
ID: 6,
|
|
Code: transaction.ResponseTooLarge,
|
|
})
|
|
})
|
|
t.Run("MaxAllowedSmallGAS", func(t *testing.T) {
|
|
checkResp(t, 7, &transaction.OracleResponse{
|
|
ID: 7,
|
|
Code: transaction.InsufficientFunds,
|
|
})
|
|
})
|
|
})
|
|
t.Run("MaxAllowedEnoughGAS", func(t *testing.T) {
|
|
checkResp(t, 8, &transaction.OracleResponse{
|
|
ID: 8,
|
|
Code: transaction.Success,
|
|
Result: make([]byte, transaction.MaxOracleResultSize),
|
|
})
|
|
})
|
|
t.Run("WithFilter", func(t *testing.T) {
|
|
checkResp(t, 9, &transaction.OracleResponse{
|
|
ID: 9,
|
|
Code: transaction.Success,
|
|
Result: []byte(`[2]`),
|
|
})
|
|
t.Run("invalid response", func(t *testing.T) {
|
|
checkResp(t, 10, &transaction.OracleResponse{
|
|
ID: 10,
|
|
Code: transaction.Error,
|
|
})
|
|
})
|
|
})
|
|
t.Run("InvalidContentType", func(t *testing.T) {
|
|
checkResp(t, 11, &transaction.OracleResponse{
|
|
ID: 11,
|
|
Code: transaction.ContentTypeNotSupported,
|
|
})
|
|
})
|
|
}
|
|
|
|
func TestOracleFull(t *testing.T) {
|
|
bc := initTestChain(t, nil, nil)
|
|
acc, orc, _, _ := getTestOracle(t, bc, "./testdata/oracle2.json", "two")
|
|
mp := bc.GetMemPool()
|
|
orc.OnTransaction = func(tx *transaction.Transaction) { _ = mp.Add(tx, bc) }
|
|
bc.SetOracle(orc)
|
|
|
|
cs := getOracleContractState(bc.contracts.Oracle.Hash, bc.contracts.Std.Hash)
|
|
require.NoError(t, bc.contracts.Management.PutContractState(bc.dao, cs))
|
|
|
|
go bc.Run()
|
|
go orc.Run()
|
|
t.Cleanup(orc.Shutdown)
|
|
|
|
bc.setNodesByRole(t, true, noderoles.Oracle, keys.PublicKeys{acc.PrivateKey().PublicKey()})
|
|
putOracleRequest(t, cs.Hash, bc, "https://get.1234", new(string), "handle", []byte{}, 10_000_000)
|
|
|
|
require.Eventually(t, func() bool { return mp.Count() == 1 },
|
|
time.Second*3, time.Millisecond*200)
|
|
|
|
txes := mp.GetVerifiedTransactions()
|
|
require.Len(t, txes, 1)
|
|
require.True(t, txes[0].HasAttribute(transaction.OracleResponseT))
|
|
}
|
|
|
|
func TestNotYetRunningOracle(t *testing.T) {
|
|
bc := initTestChain(t, nil, nil)
|
|
acc, orc, _, _ := getTestOracle(t, bc, "./testdata/oracle2.json", "two")
|
|
mp := bc.GetMemPool()
|
|
orc.OnTransaction = func(tx *transaction.Transaction) { _ = mp.Add(tx, bc) }
|
|
bc.SetOracle(orc)
|
|
|
|
cs := getOracleContractState(bc.contracts.Oracle.Hash, bc.contracts.Std.Hash)
|
|
require.NoError(t, bc.contracts.Management.PutContractState(bc.dao, cs))
|
|
|
|
go bc.Run()
|
|
bc.setNodesByRole(t, true, noderoles.Oracle, keys.PublicKeys{acc.PrivateKey().PublicKey()})
|
|
|
|
var req state.OracleRequest
|
|
var reqs = make(map[uint64]*state.OracleRequest)
|
|
for i := uint64(0); i < 3; i++ {
|
|
reqs[i] = &req
|
|
}
|
|
orc.AddRequests(reqs) // 0, 1, 2 added to pending.
|
|
|
|
var ids = []uint64{0, 1}
|
|
orc.RemoveRequests(ids) // 0, 1 removed from pending, 2 left.
|
|
|
|
reqs = make(map[uint64]*state.OracleRequest)
|
|
for i := uint64(3); i < 5; i++ {
|
|
reqs[i] = &req
|
|
}
|
|
orc.AddRequests(reqs) // 3, 4 added to pending -> 2, 3, 4 in pending.
|
|
|
|
ids = []uint64{3}
|
|
orc.RemoveRequests(ids) // 3 removed from pending -> 2, 4 in pending.
|
|
|
|
go orc.Run()
|
|
t.Cleanup(orc.Shutdown)
|
|
|
|
require.Eventually(t, func() bool { return mp.Count() == 2 },
|
|
time.Second*3, time.Millisecond*200)
|
|
txes := mp.GetVerifiedTransactions()
|
|
require.Len(t, txes, 2)
|
|
var txids []uint64
|
|
for _, tx := range txes {
|
|
for _, attr := range tx.Attributes {
|
|
if attr.Type == transaction.OracleResponseT {
|
|
resp := attr.Value.(*transaction.OracleResponse)
|
|
txids = append(txids, resp.ID)
|
|
}
|
|
}
|
|
}
|
|
require.Len(t, txids, 2)
|
|
require.Contains(t, txids, uint64(2))
|
|
require.Contains(t, txids, uint64(4))
|
|
}
|
|
|
|
type saveToMapBroadcaster struct {
|
|
mtx sync.RWMutex
|
|
m map[uint64]*responseWithSig
|
|
}
|
|
|
|
func (b *saveToMapBroadcaster) SendResponse(_ *keys.PrivateKey, resp *transaction.OracleResponse, txSig []byte) {
|
|
b.mtx.Lock()
|
|
defer b.mtx.Unlock()
|
|
b.m[resp.ID] = &responseWithSig{
|
|
resp: resp,
|
|
txSig: txSig,
|
|
}
|
|
}
|
|
func (*saveToMapBroadcaster) Run() {}
|
|
func (*saveToMapBroadcaster) Shutdown() {}
|
|
|
|
type responseWithSig struct {
|
|
resp *transaction.OracleResponse
|
|
txSig []byte
|
|
}
|
|
|
|
func saveTxToChan(ch chan *transaction.Transaction) oracle.TxCallback {
|
|
return func(tx *transaction.Transaction) {
|
|
ch <- tx
|
|
}
|
|
}
|
|
|
|
type (
|
|
// httpClient implements oracle.HTTPClient with
|
|
// mocked URL or responses.
|
|
httpClient struct {
|
|
responses map[string]testResponse
|
|
}
|
|
|
|
testResponse struct {
|
|
code int
|
|
ct string
|
|
body []byte
|
|
}
|
|
)
|
|
|
|
// Get implements oracle.HTTPClient interface.
|
|
func (c *httpClient) Do(req *http.Request) (*http.Response, error) {
|
|
resp, ok := c.responses[req.URL.String()]
|
|
if ok {
|
|
return &http.Response{
|
|
StatusCode: resp.code,
|
|
Header: http.Header{
|
|
"Content-Type": {resp.ct},
|
|
},
|
|
Body: newResponseBody(resp.body),
|
|
}, nil
|
|
}
|
|
return nil, errors.New("request failed")
|
|
}
|
|
|
|
func newDefaultHTTPClient() oracle.HTTPClient {
|
|
return &httpClient{
|
|
responses: map[string]testResponse{
|
|
"https://get.1234": {
|
|
code: http.StatusOK,
|
|
ct: "application/json",
|
|
body: []byte{1, 2, 3, 4},
|
|
},
|
|
"https://get.4321": {
|
|
code: http.StatusOK,
|
|
ct: "application/json",
|
|
body: []byte{4, 3, 2, 1},
|
|
},
|
|
"https://get.timeout": {
|
|
code: http.StatusRequestTimeout,
|
|
ct: "application/json",
|
|
body: []byte{},
|
|
},
|
|
"https://get.notfound": {
|
|
code: http.StatusNotFound,
|
|
ct: "application/json",
|
|
body: []byte{},
|
|
},
|
|
"https://get.forbidden": {
|
|
code: http.StatusForbidden,
|
|
ct: "application/json",
|
|
body: []byte{},
|
|
},
|
|
"https://private.url": {
|
|
code: http.StatusOK,
|
|
ct: "application/json",
|
|
body: []byte("passwords"),
|
|
},
|
|
"https://get.big": {
|
|
code: http.StatusOK,
|
|
ct: "application/json",
|
|
body: make([]byte, transaction.MaxOracleResultSize+1),
|
|
},
|
|
"https://get.maxallowed": {
|
|
code: http.StatusOK,
|
|
ct: "application/json",
|
|
body: make([]byte, transaction.MaxOracleResultSize),
|
|
},
|
|
"https://get.filter": {
|
|
code: http.StatusOK,
|
|
ct: "application/json",
|
|
body: []byte(`{"Values":["one", 2, 3],"Another":null}`),
|
|
},
|
|
"https://get.filterinv": {
|
|
code: http.StatusOK,
|
|
ct: "application/json",
|
|
body: []byte{0xFF},
|
|
},
|
|
"https://get.invalidcontent": {
|
|
code: http.StatusOK,
|
|
ct: "image/gif",
|
|
body: []byte{1, 2, 3},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
func newResponseBody(resp []byte) gio.ReadCloser {
|
|
return ioutil.NopCloser(bytes.NewReader(resp))
|
|
}
|