v1.0.0

testing/scenarios/common.go

@@ -0,0 +1,207 @@
+package scenarios
+
+import (
+	"bytes"
+	"crypto/rand"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"sync"
+	"syscall"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/xtls/xray-core/v1/app/dispatcher"
+	"github.com/xtls/xray-core/v1/app/proxyman"
+	"github.com/xtls/xray-core/v1/common"
+	"github.com/xtls/xray-core/v1/common/errors"
+	"github.com/xtls/xray-core/v1/common/log"
+	"github.com/xtls/xray-core/v1/common/net"
+	"github.com/xtls/xray-core/v1/common/retry"
+	"github.com/xtls/xray-core/v1/common/serial"
+	core "github.com/xtls/xray-core/v1/core"
+)
+
+func xor(b []byte) []byte {
+	r := make([]byte, len(b))
+	for i, v := range b {
+		r[i] = v ^ 'c'
+	}
+	return r
+}
+
+func readFrom(conn net.Conn, timeout time.Duration, length int) []byte {
+	b := make([]byte, length)
+	deadline := time.Now().Add(timeout)
+	conn.SetReadDeadline(deadline)
+	n, err := io.ReadFull(conn, b[:length])
+	if err != nil {
+		fmt.Println("Unexpected error from readFrom:", err)
+	}
+	return b[:n]
+}
+
+func readFrom2(conn net.Conn, timeout time.Duration, length int) ([]byte, error) {
+	b := make([]byte, length)
+	deadline := time.Now().Add(timeout)
+	conn.SetReadDeadline(deadline)
+	n, err := io.ReadFull(conn, b[:length])
+	if err != nil {
+		return nil, err
+	}
+	return b[:n], nil
+}
+
+func InitializeServerConfigs(configs ...*core.Config) ([]*exec.Cmd, error) {
+	servers := make([]*exec.Cmd, 0, 10)
+
+	for _, config := range configs {
+		server, err := InitializeServerConfig(config)
+		if err != nil {
+			CloseAllServers(servers)
+			return nil, err
+		}
+		servers = append(servers, server)
+	}
+
+	time.Sleep(time.Second * 2)
+
+	return servers, nil
+}
+
+func InitializeServerConfig(config *core.Config) (*exec.Cmd, error) {
+	err := BuildXray()
+	if err != nil {
+		return nil, err
+	}
+
+	config = withDefaultApps(config)
+	configBytes, err := proto.Marshal(config)
+	if err != nil {
+		return nil, err
+	}
+	proc := RunXrayProtobuf(configBytes)
+
+	if err := proc.Start(); err != nil {
+		return nil, err
+	}
+
+	return proc, nil
+}
+
+var (
+	testBinaryPath    string
+	testBinaryPathGen sync.Once
+)
+
+func genTestBinaryPath() {
+	testBinaryPathGen.Do(func() {
+		var tempDir string
+		common.Must(retry.Timed(5, 100).On(func() error {
+			dir, err := ioutil.TempDir("", "xray")
+			if err != nil {
+				return err
+			}
+			tempDir = dir
+			return nil
+		}))
+		file := filepath.Join(tempDir, "xray.test")
+		if runtime.GOOS == "windows" {
+			file += ".exe"
+		}
+		testBinaryPath = file
+		fmt.Printf("Generated binary path: %s\n", file)
+	})
+}
+
+func GetSourcePath() string {
+	return filepath.Join("example.com", "core", "main")
+}
+
+func CloseAllServers(servers []*exec.Cmd) {
+	log.Record(&log.GeneralMessage{
+		Severity: log.Severity_Info,
+		Content:  "Closing all servers.",
+	})
+	for _, server := range servers {
+		if runtime.GOOS == "windows" {
+			server.Process.Kill()
+		} else {
+			server.Process.Signal(syscall.SIGTERM)
+		}
+	}
+	for _, server := range servers {
+		server.Process.Wait()
+	}
+	log.Record(&log.GeneralMessage{
+		Severity: log.Severity_Info,
+		Content:  "All server closed.",
+	})
+}
+
+func withDefaultApps(config *core.Config) *core.Config {
+	config.App = append(config.App, serial.ToTypedMessage(&dispatcher.Config{}))
+	config.App = append(config.App, serial.ToTypedMessage(&proxyman.InboundConfig{}))
+	config.App = append(config.App, serial.ToTypedMessage(&proxyman.OutboundConfig{}))
+	return config
+}
+
+func testTCPConn(port net.Port, payloadSize int, timeout time.Duration) func() error {
+	return func() error {
+		conn, err := net.DialTCP("tcp", nil, &net.TCPAddr{
+			IP:   []byte{127, 0, 0, 1},
+			Port: int(port),
+		})
+		if err != nil {
+			return err
+		}
+		defer conn.Close()
+
+		return testTCPConn2(conn, payloadSize, timeout)()
+	}
+}
+
+func testUDPConn(port net.Port, payloadSize int, timeout time.Duration) func() error {
+	return func() error {
+		conn, err := net.DialUDP("udp", nil, &net.UDPAddr{
+			IP:   []byte{127, 0, 0, 1},
+			Port: int(port),
+		})
+		if err != nil {
+			return err
+		}
+		defer conn.Close()
+
+		return testTCPConn2(conn, payloadSize, timeout)()
+	}
+}
+
+func testTCPConn2(conn net.Conn, payloadSize int, timeout time.Duration) func() error {
+	return func() error {
+		payload := make([]byte, payloadSize)
+		common.Must2(rand.Read(payload))
+
+		nBytes, err := conn.Write(payload)
+		if err != nil {
+			return err
+		}
+		if nBytes != len(payload) {
+			return errors.New("expect ", len(payload), " written, but actually ", nBytes)
+		}
+
+		response, err := readFrom2(conn, timeout, payloadSize)
+		if err != nil {
+			return err
+		}
+		_ = response
+
+		if r := bytes.Compare(response, xor(payload)); r != 0 {
+			return errors.New(r)
+		}
+
+		return nil
+	}
+}