Xray-core/app/router/command/command_test.go

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2020-11-25 11:01:53 +00:00
package command_test
import (
"context"
"testing"
"time"
"github.com/golang/mock/gomock"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
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"google.golang.org/grpc"
"google.golang.org/grpc/test/bufconn"
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"github.com/xtls/xray-core/app/router"
. "github.com/xtls/xray-core/app/router/command"
"github.com/xtls/xray-core/app/stats"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/features/routing"
"github.com/xtls/xray-core/testing/mocks"
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)
func TestServiceSubscribeRoutingStats(t *testing.T) {
c := stats.NewChannel(&stats.ChannelConfig{
SubscriberLimit: 1,
BufferSize: 0,
Blocking: true,
})
common.Must(c.Start())
defer c.Close()
lis := bufconn.Listen(1024 * 1024)
bufDialer := func(context.Context, string) (net.Conn, error) {
return lis.Dial()
}
testCases := []*RoutingContext{
{InboundTag: "in", OutboundTag: "out"},
{TargetIPs: [][]byte{{1, 2, 3, 4}}, TargetPort: 8080, OutboundTag: "out"},
{TargetDomain: "example.com", TargetPort: 443, OutboundTag: "out"},
{SourcePort: 9999, TargetPort: 9999, OutboundTag: "out"},
{Network: net.Network_UDP, OutboundGroupTags: []string{"outergroup", "innergroup"}, OutboundTag: "out"},
{Protocol: "bittorrent", OutboundTag: "blocked"},
{User: "example@example.com", OutboundTag: "out"},
{SourceIPs: [][]byte{{127, 0, 0, 1}}, Attributes: map[string]string{"attr": "value"}, OutboundTag: "out"},
}
errCh := make(chan error)
nextPub := make(chan struct{})
// Server goroutine
go func() {
server := grpc.NewServer()
RegisterRoutingServiceServer(server, NewRoutingServer(nil, c))
errCh <- server.Serve(lis)
}()
// Publisher goroutine
go func() {
publishTestCases := func() error {
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
for { // Wait until there's one subscriber in routing stats channel
if len(c.Subscribers()) > 0 {
break
}
if ctx.Err() != nil {
return ctx.Err()
}
}
for _, tc := range testCases {
c.Publish(context.Background(), AsRoutingRoute(tc))
time.Sleep(time.Millisecond)
}
return nil
}
if err := publishTestCases(); err != nil {
errCh <- err
}
// Wait for next round of publishing
<-nextPub
if err := publishTestCases(); err != nil {
errCh <- err
}
}()
// Client goroutine
go func() {
defer lis.Close()
conn, err := grpc.DialContext(context.Background(), "bufnet", grpc.WithContextDialer(bufDialer), grpc.WithInsecure())
if err != nil {
errCh <- err
return
}
defer conn.Close()
client := NewRoutingServiceClient(conn)
// Test retrieving all fields
testRetrievingAllFields := func() error {
streamCtx, streamClose := context.WithCancel(context.Background())
// Test the unsubscription of stream works well
defer func() {
streamClose()
timeOutCtx, timeout := context.WithTimeout(context.Background(), time.Second)
defer timeout()
for { // Wait until there's no subscriber in routing stats channel
if len(c.Subscribers()) == 0 {
break
}
if timeOutCtx.Err() != nil {
t.Error("unexpected subscribers not decreased in channel", timeOutCtx.Err())
}
}
}()
stream, err := client.SubscribeRoutingStats(streamCtx, &SubscribeRoutingStatsRequest{})
if err != nil {
return err
}
for _, tc := range testCases {
msg, err := stream.Recv()
if err != nil {
return err
}
if r := cmp.Diff(msg, tc, cmpopts.IgnoreUnexported(RoutingContext{})); r != "" {
t.Error(r)
}
}
// Test that double subscription will fail
errStream, err := client.SubscribeRoutingStats(context.Background(), &SubscribeRoutingStatsRequest{
FieldSelectors: []string{"ip", "port", "domain", "outbound"},
})
if err != nil {
return err
}
if _, err := errStream.Recv(); err == nil {
t.Error("unexpected successful subscription")
}
return nil
}
// Test retrieving only a subset of fields
testRetrievingSubsetOfFields := func() error {
streamCtx, streamClose := context.WithCancel(context.Background())
defer streamClose()
stream, err := client.SubscribeRoutingStats(streamCtx, &SubscribeRoutingStatsRequest{
FieldSelectors: []string{"ip", "port", "domain", "outbound"},
})
if err != nil {
return err
}
// Send nextPub signal to start next round of publishing
close(nextPub)
for _, tc := range testCases {
msg, err := stream.Recv()
if err != nil {
return err
}
stat := &RoutingContext{ // Only a subset of stats is retrieved
SourceIPs: tc.SourceIPs,
TargetIPs: tc.TargetIPs,
SourcePort: tc.SourcePort,
TargetPort: tc.TargetPort,
TargetDomain: tc.TargetDomain,
OutboundGroupTags: tc.OutboundGroupTags,
OutboundTag: tc.OutboundTag,
}
if r := cmp.Diff(msg, stat, cmpopts.IgnoreUnexported(RoutingContext{})); r != "" {
t.Error(r)
}
}
return nil
}
if err := testRetrievingAllFields(); err != nil {
errCh <- err
}
if err := testRetrievingSubsetOfFields(); err != nil {
errCh <- err
}
errCh <- nil // Client passed all tests successfully
}()
// Wait for goroutines to complete
select {
case <-time.After(2 * time.Second):
t.Fatal("Test timeout after 2s")
case err := <-errCh:
if err != nil {
t.Fatal(err)
}
}
}
func TestSerivceTestRoute(t *testing.T) {
c := stats.NewChannel(&stats.ChannelConfig{
SubscriberLimit: 1,
BufferSize: 16,
Blocking: true,
})
common.Must(c.Start())
defer c.Close()
r := new(router.Router)
mockCtl := gomock.NewController(t)
defer mockCtl.Finish()
common.Must(r.Init(&router.Config{
Rule: []*router.RoutingRule{
{
InboundTag: []string{"in"},
TargetTag: &router.RoutingRule_Tag{Tag: "out"},
},
{
Protocol: []string{"bittorrent"},
TargetTag: &router.RoutingRule_Tag{Tag: "blocked"},
},
{
PortList: &net.PortList{Range: []*net.PortRange{{From: 8080, To: 8080}}},
TargetTag: &router.RoutingRule_Tag{Tag: "out"},
},
{
SourcePortList: &net.PortList{Range: []*net.PortRange{{From: 9999, To: 9999}}},
TargetTag: &router.RoutingRule_Tag{Tag: "out"},
},
{
Domain: []*router.Domain{{Type: router.Domain_Domain, Value: "com"}},
TargetTag: &router.RoutingRule_Tag{Tag: "out"},
},
{
SourceGeoip: []*router.GeoIP{{CountryCode: "private", Cidr: []*router.CIDR{{Ip: []byte{127, 0, 0, 0}, Prefix: 8}}}},
TargetTag: &router.RoutingRule_Tag{Tag: "out"},
},
{
UserEmail: []string{"example@example.com"},
TargetTag: &router.RoutingRule_Tag{Tag: "out"},
},
{
Networks: []net.Network{net.Network_UDP, net.Network_TCP},
TargetTag: &router.RoutingRule_Tag{Tag: "out"},
},
},
}, mocks.NewDNSClient(mockCtl), mocks.NewOutboundManager(mockCtl)))
lis := bufconn.Listen(1024 * 1024)
bufDialer := func(context.Context, string) (net.Conn, error) {
return lis.Dial()
}
errCh := make(chan error)
// Server goroutine
go func() {
server := grpc.NewServer()
RegisterRoutingServiceServer(server, NewRoutingServer(r, c))
errCh <- server.Serve(lis)
}()
// Client goroutine
go func() {
defer lis.Close()
conn, err := grpc.DialContext(context.Background(), "bufnet", grpc.WithContextDialer(bufDialer), grpc.WithInsecure())
if err != nil {
errCh <- err
}
defer conn.Close()
client := NewRoutingServiceClient(conn)
testCases := []*RoutingContext{
{InboundTag: "in", OutboundTag: "out"},
{TargetIPs: [][]byte{{1, 2, 3, 4}}, TargetPort: 8080, OutboundTag: "out"},
{TargetDomain: "example.com", TargetPort: 443, OutboundTag: "out"},
{SourcePort: 9999, TargetPort: 9999, OutboundTag: "out"},
{Network: net.Network_UDP, Protocol: "bittorrent", OutboundTag: "blocked"},
{User: "example@example.com", OutboundTag: "out"},
{SourceIPs: [][]byte{{127, 0, 0, 1}}, Attributes: map[string]string{"attr": "value"}, OutboundTag: "out"},
}
// Test simple TestRoute
testSimple := func() error {
for _, tc := range testCases {
route, err := client.TestRoute(context.Background(), &TestRouteRequest{RoutingContext: tc})
if err != nil {
return err
}
if r := cmp.Diff(route, tc, cmpopts.IgnoreUnexported(RoutingContext{})); r != "" {
t.Error(r)
}
}
return nil
}
// Test TestRoute with special options
testOptions := func() error {
sub, err := c.Subscribe()
if err != nil {
return err
}
for _, tc := range testCases {
route, err := client.TestRoute(context.Background(), &TestRouteRequest{
RoutingContext: tc,
FieldSelectors: []string{"ip", "port", "domain", "outbound"},
PublishResult: true,
})
if err != nil {
return err
}
stat := &RoutingContext{ // Only a subset of stats is retrieved
SourceIPs: tc.SourceIPs,
TargetIPs: tc.TargetIPs,
SourcePort: tc.SourcePort,
TargetPort: tc.TargetPort,
TargetDomain: tc.TargetDomain,
OutboundGroupTags: tc.OutboundGroupTags,
OutboundTag: tc.OutboundTag,
}
if r := cmp.Diff(route, stat, cmpopts.IgnoreUnexported(RoutingContext{})); r != "" {
t.Error(r)
}
select { // Check that routing result has been published to statistics channel
case msg, received := <-sub:
if route, ok := msg.(routing.Route); received && ok {
if r := cmp.Diff(AsProtobufMessage(nil)(route), tc, cmpopts.IgnoreUnexported(RoutingContext{})); r != "" {
t.Error(r)
}
} else {
t.Error("unexpected failure in receiving published routing result for testcase", tc)
}
case <-time.After(100 * time.Millisecond):
t.Error("unexpected failure in receiving published routing result", tc)
}
}
return nil
}
if err := testSimple(); err != nil {
errCh <- err
}
if err := testOptions(); err != nil {
errCh <- err
}
errCh <- nil // Client passed all tests successfully
}()
// Wait for goroutines to complete
select {
case <-time.After(2 * time.Second):
t.Fatal("Test timeout after 2s")
case err := <-errCh:
if err != nil {
t.Fatal(err)
}
}
}