neoneo-go/pkg/services/oracle/oracle_test.go

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package oracle_test
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import (
"bytes"
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"encoding/binary"
"encoding/json"
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"errors"
"fmt"
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gio "io"
"net/http"
"path/filepath"
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"strings"
"sync"
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"testing"
"time"
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"github.com/nspcc-dev/neo-go/internal/contracts"
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"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
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"github.com/nspcc-dev/neo-go/pkg/core"
"github.com/nspcc-dev/neo-go/pkg/core/native"
"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
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"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"
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"github.com/nspcc-dev/neo-go/pkg/interop/native/roles"
"github.com/nspcc-dev/neo-go/pkg/neotest"
"github.com/nspcc-dev/neo-go/pkg/neotest/chain"
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"github.com/nspcc-dev/neo-go/pkg/services/oracle"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/util/slice"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/zap/zaptest"
)
var pathToInternalContracts = filepath.Join("..", "..", "..", "internal", "contracts")
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func putOracleRequest(t *testing.T, oracleValidatorInvoker *neotest.ContractInvoker,
url string, filter *string, cb string, userData []byte, gas int64) util.Uint256 {
var filtItem interface{}
if filter != nil {
filtItem = *filter
}
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return oracleValidatorInvoker.Invoke(t, stackitem.Null{}, "requestURL", url, filtItem, cb, userData, gas)
}
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func getOracleConfig(t *testing.T, bc *core.Blockchain, w, pass string, returnOracleRedirectionErrOn func(address string) bool) 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: w,
Password: pass,
},
},
Chain: bc,
Client: newDefaultHTTPClient(returnOracleRedirectionErrOn),
}
}
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func getTestOracle(t *testing.T, bc *core.Blockchain, walletPath, pass string) (
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*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, func(address string) bool {
return strings.HasPrefix(address, "https://private")
})
orcCfg.ResponseHandler = &saveToMapBroadcaster{m: m}
orcCfg.OnTransaction = saveTxToChan(ch)
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orc, err := oracle.NewOracle(orcCfg)
require.NoError(t, err)
w, err := wallet.NewWalletFromFile(walletPath)
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require.NoError(t, err)
require.NoError(t, w.Accounts[0].Decrypt(pass, w.Scrypt))
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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) {
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bc, validator, committee := chain.NewMulti(t)
e := neotest.NewExecutor(t, bc, validator, committee)
managementInvoker := e.ValidatorInvoker(e.NativeHash(t, nativenames.Management))
cs := contracts.GetOracleContractState(t, pathToInternalContracts, validator.ScriptHash(), 0)
rawManifest, err := json.Marshal(cs.Manifest)
require.NoError(t, err)
rawNef, err := cs.NEF.Bytes()
require.NoError(t, err)
tx := managementInvoker.PrepareInvoke(t, "deploy", rawNef, rawManifest)
e.AddNewBlock(t, tx)
e.CheckHalt(t, tx.Hash())
cInvoker := e.ValidatorInvoker(cs.Hash)
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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},
}
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cInvoker.Invoke(t, stackitem.Null{}, "requestURL", req.URL, *req.Filter, req.CallbackMethod, req.UserData, int64(req.GasForResponse))
bc.SetOracle(orc)
orc.UpdateOracleNodes(keys.PublicKeys{acc.PublicKey()})
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tx, err = orc.CreateResponseTx(int64(req.GasForResponse), 1, resp)
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require.NoError(t, err)
assert.Equal(t, 166, tx.Size())
assert.Equal(t, int64(2198650), tx.NetworkFee)
assert.Equal(t, int64(97801350), tx.SystemFee)
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}
func TestOracle_InvalidWallet(t *testing.T) {
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bc, _, _ := chain.NewMulti(t)
_, err := oracle.NewOracle(getOracleConfig(t, bc, "./testdata/oracle1.json", "invalid", nil))
require.Error(t, err)
_, err = oracle.NewOracle(getOracleConfig(t, bc, "./testdata/oracle1.json", "one", nil))
require.NoError(t, err)
}
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func TestOracle(t *testing.T) {
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bc, validator, committee := chain.NewMulti(t)
e := neotest.NewExecutor(t, bc, validator, committee)
managementInvoker := e.ValidatorInvoker(e.NativeHash(t, nativenames.Management))
designationSuperInvoker := e.NewInvoker(e.NativeHash(t, nativenames.Designation), validator, committee)
nativeOracleH := e.NativeHash(t, nativenames.Oracle)
nativeOracleID := e.NativeID(t, nativenames.Oracle)
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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.PublicKey(), acc2.PrivateKey().PublicKey()}
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// Must be set in native contract for tx verification.
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designationSuperInvoker.Invoke(t, stackitem.Null{}, "designateAsRole",
int64(roles.Oracle), []interface{}{oracleNodes[0].Bytes(), oracleNodes[1].Bytes()})
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orc1.UpdateOracleNodes(oracleNodes.Copy())
orc2.UpdateOracleNodes(oracleNodes.Copy())
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nativeOracleState := bc.GetContractState(nativeOracleH)
require.NotNil(t, nativeOracleState)
md := nativeOracleState.Manifest.ABI.GetMethod(manifest.MethodVerify, -1)
require.NotNil(t, md)
oracleRespScript := native.CreateOracleResponseScript(nativeOracleH)
orc1.UpdateNativeContract(nativeOracleState.NEF.Script, slice.Copy(oracleRespScript), nativeOracleH, md.Offset)
orc2.UpdateNativeContract(nativeOracleState.NEF.Script, slice.Copy(oracleRespScript), nativeOracleH, md.Offset)
cs := contracts.GetOracleContractState(t, pathToInternalContracts, validator.ScriptHash(), 0)
rawManifest, err := json.Marshal(cs.Manifest)
require.NoError(t, err)
rawNef, err := cs.NEF.Bytes()
require.NoError(t, err)
tx := managementInvoker.PrepareInvoke(t, "deploy", rawNef, rawManifest)
e.AddNewBlock(t, tx)
e.CheckHalt(t, tx.Hash())
cInvoker := e.ValidatorInvoker(cs.Hash)
putOracleRequest(t, cInvoker, "https://get.1234", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://get.1234", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://get.timeout", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://get.notfound", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://get.forbidden", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://private.url", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://get.big", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://get.maxallowed", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://get.maxallowed", nil, "handle", []byte{}, 100_000_000)
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flt := "$.Values[1]"
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putOracleRequest(t, cInvoker, "https://get.filter", &flt, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cInvoker, "https://get.filterinv", &flt, "handle", []byte{}, 10_000_000)
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putOracleRequest(t, cInvoker, "https://get.invalidcontent", nil, "handle", []byte{}, 10_000_000)
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checkResp := func(t *testing.T, id uint64, resp *transaction.OracleResponse) *state.OracleRequest {
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// Use a hack to get request from Oracle contract, because we can't use GetRequestInternal directly.
requestKey := make([]byte, 9)
requestKey[0] = 7 // prefixRequest from native Oracle contract
binary.BigEndian.PutUint64(requestKey[1:], id)
si := bc.GetStorageItem(nativeOracleID, requestKey)
require.NotNil(t, si)
req := new(state.OracleRequest)
require.NoError(t, stackitem.DeserializeConvertible(si, req))
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reqs := map[uint64]*state.OracleRequest{id: req}
orc1.ProcessRequestsInternal(reqs)
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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 ")
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require.NoError(t, bc.PoolTx(tx))
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}
t.Run("NormalRequest", func(t *testing.T) {
resp := &transaction.OracleResponse{
ID: 0,
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Code: transaction.Success,
Result: []byte{1, 2, 3, 4},
}
req := checkResp(t, 0, resp)
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reqs := map[uint64]*state.OracleRequest{0: req}
orc2.ProcessRequestsInternal(reqs)
require.Equal(t, resp, m2[0].resp)
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require.Empty(t, ch2)
t.Run("InvalidSignature", func(t *testing.T) {
orc1.AddResponse(acc2.PublicKey(), m2[0].resp.ID, []byte{1, 2, 3})
require.Empty(t, ch1)
})
orc1.AddResponse(acc2.PublicKey(), m2[0].resp.ID, m2[0].txSig)
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checkEmitTx(t, ch1)
t.Run("FirstOtherThenMe", func(t *testing.T) {
const reqID = 1
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resp := &transaction.OracleResponse{
ID: reqID,
Code: transaction.Success,
Result: []byte{1, 2, 3, 4},
}
req := checkResp(t, reqID, resp)
orc2.AddResponse(acc1.PublicKey(), reqID, m1[reqID].txSig)
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require.Empty(t, ch2)
reqs := map[uint64]*state.OracleRequest{reqID: req}
orc2.ProcessRequestsInternal(reqs)
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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,
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Code: transaction.Timeout,
})
})
t.Run("NotFound", func(t *testing.T) {
checkResp(t, 3, &transaction.OracleResponse{
ID: 3,
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Code: transaction.NotFound,
})
})
t.Run("Forbidden", func(t *testing.T) {
checkResp(t, 4, &transaction.OracleResponse{
ID: 4,
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Code: transaction.Forbidden,
})
})
t.Run("PrivateNetwork", func(t *testing.T) {
checkResp(t, 5, &transaction.OracleResponse{
ID: 5,
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Code: transaction.Forbidden,
})
})
t.Run("Big", func(t *testing.T) {
checkResp(t, 6, &transaction.OracleResponse{
ID: 6,
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Code: transaction.ResponseTooLarge,
})
})
t.Run("MaxAllowedSmallGAS", func(t *testing.T) {
checkResp(t, 7, &transaction.OracleResponse{
ID: 7,
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Code: transaction.InsufficientFunds,
})
})
})
t.Run("MaxAllowedEnoughGAS", func(t *testing.T) {
checkResp(t, 8, &transaction.OracleResponse{
ID: 8,
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Code: transaction.Success,
Result: make([]byte, transaction.MaxOracleResultSize),
})
})
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t.Run("WithFilter", func(t *testing.T) {
checkResp(t, 9, &transaction.OracleResponse{
ID: 9,
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Code: transaction.Success,
Result: []byte(`[2]`),
})
t.Run("invalid response", func(t *testing.T) {
checkResp(t, 10, &transaction.OracleResponse{
ID: 10,
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Code: transaction.Error,
})
})
})
t.Run("InvalidContentType", func(t *testing.T) {
checkResp(t, 11, &transaction.OracleResponse{
ID: 11,
Code: transaction.ContentTypeNotSupported,
})
})
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}
func TestOracleFull(t *testing.T) {
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bc, validator, committee := chain.NewMultiWithCustomConfigAndStore(t, nil, nil, false)
e := neotest.NewExecutor(t, bc, validator, committee)
designationSuperInvoker := e.NewInvoker(e.NativeHash(t, nativenames.Designation), validator, committee)
acc, orc, _, _ := getTestOracle(t, bc, "./testdata/oracle2.json", "two")
mp := bc.GetMemPool()
orc.OnTransaction = func(tx *transaction.Transaction) error { return mp.Add(tx, bc) }
bc.SetOracle(orc)
go bc.Run()
orc.Start()
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t.Cleanup(func() {
orc.Shutdown()
bc.Close()
})
designationSuperInvoker.Invoke(t, stackitem.Null{}, "designateAsRole",
int64(roles.Oracle), []interface{}{acc.PublicKey().Bytes()})
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cs := contracts.GetOracleContractState(t, pathToInternalContracts, validator.ScriptHash(), 0)
e.DeployContract(t, &neotest.Contract{
Hash: cs.Hash,
NEF: &cs.NEF,
Manifest: &cs.Manifest,
}, nil)
cInvoker := e.ValidatorInvoker(cs.Hash)
putOracleRequest(t, cInvoker, "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) {
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bc, validator, committee := chain.NewMultiWithCustomConfigAndStore(t, nil, nil, false)
e := neotest.NewExecutor(t, bc, validator, committee)
designationSuperInvoker := e.NewInvoker(e.NativeHash(t, nativenames.Designation), validator, committee)
acc, orc, _, _ := getTestOracle(t, bc, "./testdata/oracle2.json", "two")
mp := bc.GetMemPool()
orc.OnTransaction = func(tx *transaction.Transaction) error { return mp.Add(tx, bc) }
bc.SetOracle(orc)
go bc.Run()
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t.Cleanup(bc.Close)
designationSuperInvoker.Invoke(t, stackitem.Null{}, "designateAsRole",
int64(roles.Oracle), []interface{}{acc.PublicKey().Bytes()})
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.
orc.Start()
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))
}
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type saveToMapBroadcaster struct {
mtx sync.RWMutex
m map[uint64]*responseWithSig
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}
func (b *saveToMapBroadcaster) SendResponse(_ *keys.PrivateKey, resp *transaction.OracleResponse, txSig []byte) {
b.mtx.Lock()
defer b.mtx.Unlock()
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b.m[resp.ID] = &responseWithSig{
resp: resp,
txSig: txSig,
}
}
func (*saveToMapBroadcaster) Run() {}
func (*saveToMapBroadcaster) Shutdown() {}
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type responseWithSig struct {
resp *transaction.OracleResponse
txSig []byte
}
func saveTxToChan(ch chan *transaction.Transaction) oracle.TxCallback {
return func(tx *transaction.Transaction) error {
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ch <- tx
return nil
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}
}
type (
// httpClient implements oracle.HTTPClient with
// mocked URL or responses.
httpClient struct {
returnOracleRedirectionErrOn func(address string) bool
responses map[string]testResponse
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}
testResponse struct {
code int
ct string
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body []byte
}
)
// Get implements the oracle.HTTPClient interface.
func (c *httpClient) Do(req *http.Request) (*http.Response, error) {
if c.returnOracleRedirectionErrOn != nil && c.returnOracleRedirectionErrOn(req.URL.String()) {
return nil, fmt.Errorf("%w: private network", oracle.ErrRestrictedRedirect)
}
resp, ok := c.responses[req.URL.String()]
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if ok {
return &http.Response{
StatusCode: resp.code,
Header: http.Header{
"Content-Type": {resp.ct},
},
Body: newResponseBody(resp.body),
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}, nil
}
return nil, errors.New("request failed")
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}
func newDefaultHTTPClient(returnOracleRedirectionErrOn func(address string) bool) oracle.HTTPClient {
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return &httpClient{
returnOracleRedirectionErrOn: returnOracleRedirectionErrOn,
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responses: map[string]testResponse{
"https://get.1234": {
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code: http.StatusOK,
ct: "application/json",
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body: []byte{1, 2, 3, 4},
},
"https://get.4321": {
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code: http.StatusOK,
ct: "application/json",
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body: []byte{4, 3, 2, 1},
},
"https://get.timeout": {
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code: http.StatusRequestTimeout,
ct: "application/json",
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body: []byte{},
},
"https://get.notfound": {
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code: http.StatusNotFound,
ct: "application/json",
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body: []byte{},
},
"https://get.forbidden": {
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code: http.StatusForbidden,
ct: "application/json",
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body: []byte{},
},
"https://private.url": {
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code: http.StatusOK,
ct: "application/json",
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body: []byte("passwords"),
},
"https://get.big": {
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code: http.StatusOK,
ct: "application/json",
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body: make([]byte, transaction.MaxOracleResultSize+1),
},
"https://get.maxallowed": {
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code: http.StatusOK,
ct: "application/json",
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body: make([]byte, transaction.MaxOracleResultSize),
},
"https://get.filter": {
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code: http.StatusOK,
ct: "application/json",
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body: []byte(`{"Values":["one", 2, 3],"Another":null}`),
},
"https://get.filterinv": {
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code: http.StatusOK,
ct: "application/json",
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body: []byte{0xFF},
},
"https://get.invalidcontent": {
code: http.StatusOK,
ct: "image/gif",
body: []byte{1, 2, 3},
},
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},
}
}
func newResponseBody(resp []byte) gio.ReadCloser {
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return gio.NopCloser(bytes.NewReader(resp))
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}