neo-go/pkg/core/oracle_test.go

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package core
import (
"bytes"
"errors"
gio "io"
"io/ioutil"
"net/http"
"net/url"
"path"
"strings"
"testing"
"time"
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"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"
"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"
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"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"
)
const oracleModulePath = "../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{
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RefreshInterval: time.Second,
UnlockWallet: config.Wallet{
Path: path.Join(oracleModulePath, w),
Password: pass,
},
},
Chain: bc,
Client: newDefaultHTTPClient(),
}
}
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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}
orcCfg.OnTransaction = saveTxToChan(ch)
orcCfg.URIValidator = func(u *url.URL) error {
if strings.HasPrefix(u.Host, "private") {
return errors.New("private network")
}
return nil
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}
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))
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)
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tx, err := orc.CreateResponseTx(int64(req.GasForResponse), 1, resp)
require.NoError(t, err)
assert.Equal(t, 167, tx.Size())
assert.Equal(t, int64(2216640), tx.NetworkFee)
assert.Equal(t, int64(97783360), 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)
}
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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, native.RoleOracle, 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)
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cs := getOracleContractState(bc.contracts.Oracle.Hash)
require.NoError(t, bc.contracts.Management.PutContractState(bc.dao, cs))
putOracleRequest(t, cs.Hash, bc, "http://get.1234", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://get.1234", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://get.timeout", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://get.notfound", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://get.forbidden", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://private.url", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://get.big", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://get.maxallowed", nil, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://get.maxallowed", nil, "handle", []byte{}, 100_000_000)
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flt := "Values[1]"
putOracleRequest(t, cs.Hash, bc, "http://get.filter", &flt, "handle", []byte{}, 10_000_000)
putOracleRequest(t, cs.Hash, bc, "http://get.filterinv", &flt, "handle", []byte{}, 10_000_000)
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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)
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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
require.NoError(t, bc.verifyAndPoolTx(tx, bc.GetMemPool(), bc))
}
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.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)
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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.PrivateKey().PublicKey(), reqID, m1[reqID].txSig)
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,
})
})
})
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}
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)
require.NoError(t, bc.contracts.Management.PutContractState(bc.dao, cs))
go bc.Run()
go orc.Run()
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t.Cleanup(orc.Shutdown)
bc.setNodesByRole(t, true, native.RoleOracle, keys.PublicKeys{acc.PrivateKey().PublicKey()})
putOracleRequest(t, cs.Hash, bc, "http://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))
}
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type saveToMapBroadcaster struct {
m map[uint64]*responseWithSig
}
func (b saveToMapBroadcaster) SendResponse(_ *keys.PrivateKey, resp *transaction.OracleResponse, txSig []byte) {
b.m[resp.ID] = &responseWithSig{
resp: resp,
txSig: txSig,
}
}
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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) {
ch <- tx
}
}
type (
// httpClient implements oracle.HTTPClient with
// mocked URL or responses.
httpClient struct {
responses map[string]testResponse
}
testResponse struct {
code int
body []byte
}
)
// Get implements oracle.HTTPClient interface.
func (c *httpClient) Get(url string) (*http.Response, error) {
resp, ok := c.responses[url]
if ok {
return &http.Response{
StatusCode: resp.code,
Body: newResponseBody(resp.body),
}, nil
}
return nil, errors.New("error during request")
}
func newDefaultHTTPClient() oracle.HTTPClient {
return &httpClient{
responses: map[string]testResponse{
"http://get.1234": {
code: http.StatusOK,
body: []byte{1, 2, 3, 4},
},
"http://get.4321": {
code: http.StatusOK,
body: []byte{4, 3, 2, 1},
},
"http://get.timeout": {
code: http.StatusRequestTimeout,
body: []byte{},
},
"http://get.notfound": {
code: http.StatusNotFound,
body: []byte{},
},
"http://get.forbidden": {
code: http.StatusForbidden,
body: []byte{},
},
"http://private.url": {
code: http.StatusOK,
body: []byte("passwords"),
},
"http://get.big": {
code: http.StatusOK,
body: make([]byte, transaction.MaxOracleResultSize+1),
},
"http://get.maxallowed": {
code: http.StatusOK,
body: make([]byte, transaction.MaxOracleResultSize),
},
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"http://get.filter": {
code: http.StatusOK,
body: []byte(`{"Values":["one", 2, 3],"Another":null}`),
},
"http://get.filterinv": {
code: http.StatusOK,
body: []byte{0xFF},
},
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},
}
}
func newResponseBody(resp []byte) gio.ReadCloser {
return ioutil.NopCloser(bytes.NewReader(resp))
}