Golang credentials.NewClientTLSFromCert函数代码示例

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本文整理汇总了Golang中google/golang.org/grpc/credentials.NewClientTLSFromCert函数的典型用法代码示例。如果您正苦于以下问题：Golang NewClientTLSFromCert函数的具体用法？Golang NewClientTLSFromCert怎么用？Golang NewClientTLSFromCert使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了NewClientTLSFromCert函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: GRPCClient

func GRPCClient(addr, token, caFile string) (*RemoteU2FClient, error) {
	var err error
	var tCreds credentials.TransportCredentials
	if caFile == "" {
		tCreds = credentials.NewClientTLSFromCert(nil, "")
	} else {
		tCreds, err = credentials.NewClientTLSFromFile(caFile, "")
		if err != nil {
			return nil, fmt.Errorf("error reading CA file: %s", err)
		}
	}

	t := oauth2.Token{
		AccessToken: token,
		TokenType:   "Bearer",
	}
	rpcCreds := oauth.NewOauthAccess(&t)

	conn, err := grpc.Dial(addr, grpc.WithTransportCredentials(tCreds),
		grpc.WithPerRPCCredentials(rpcCreds),
		grpc.WithBlock(),
		grpc.WithTimeout(30*time.Second))
	if err != nil {
		return nil, fmt.Errorf("error connecting to server: %s", err)
	}

	c := pb.NewRemoteU2FClient(conn)
	return &RemoteU2FClient{c}, nil
}

开发者ID:albertito，项目名称:remoteu2f，代码行数:29，代码来源:grpc.go

示例2: newEventsClientConnectionWithAddress

//newEventsClientConnectionWithAddress Returns a new grpc.ClientConn to the configured local PEER.
func newEventsClientConnectionWithAddress(peerAddress string) (*grpc.ClientConn, error) {
	var opts []grpc.DialOption
	if peer.TLSEnabled() {
		var sn string
		if viper.GetString("peer.tls.serverhostoverride") != "" {
			sn = viper.GetString("peer.tls.serverhostoverride")
		}
		var creds credentials.TransportAuthenticator
		if viper.GetString("peer.tls.cert.file") != "" {
			var err error
			creds, err = credentials.NewClientTLSFromFile(viper.GetString("peer.tls.cert.file"), sn)
			if err != nil {
				grpclog.Fatalf("Failed to create TLS credentials %v", err)
			}
		} else {
			creds = credentials.NewClientTLSFromCert(nil, sn)
		}
		opts = append(opts, grpc.WithTransportCredentials(creds))
	}
	opts = append(opts, grpc.WithTimeout(defaultTimeout))
	opts = append(opts, grpc.WithBlock())
	opts = append(opts, grpc.WithInsecure())

	return grpc.Dial(peerAddress, opts...)
}

开发者ID:magooster，项目名称:obc-peer，代码行数:26，代码来源:consumer.go

示例3: DialGRPC

// DialGRPC returns a GRPC connection for use communicating with a Google cloud
// service, configured with the given ClientOptions.
func DialGRPC(ctx context.Context, opts ...option.ClientOption) (*grpc.ClientConn, error) {
	var o internal.DialSettings
	for _, opt := range opts {
		opt.Apply(&o)
	}
	if o.HTTPClient != nil {
		return nil, errors.New("unsupported HTTP client specified")
	}
	if o.GRPCConn != nil {
		return o.GRPCConn, nil
	}
	if o.TokenSource == nil {
		var err error
		o.TokenSource, err = google.DefaultTokenSource(ctx, o.Scopes...)
		if err != nil {
			return nil, fmt.Errorf("google.DefaultTokenSource: %v", err)
		}
	}
	grpcOpts := []grpc.DialOption{
		grpc.WithPerRPCCredentials(oauth.TokenSource{o.TokenSource}),
		grpc.WithTransportCredentials(credentials.NewClientTLSFromCert(nil, "")),
	}
	if appengineDialerHook != nil {
		// Use the Socket API on App Engine.
		grpcOpts = append(grpcOpts, appengineDialerHook(ctx))
	}
	grpcOpts = append(grpcOpts, o.GRPCDialOpts...)
	if o.UserAgent != "" {
		grpcOpts = append(grpcOpts, grpc.WithUserAgent(o.UserAgent))
	}
	return grpc.Dial(o.Endpoint, grpcOpts...)
}

开发者ID:Ropes，项目名称:pubbing，代码行数:34，代码来源:dial.go

示例4: NewContext

func NewContext() *Context {
	log := log.New(os.Stderr, "QPM: ", log.LstdFlags)

	address := os.Getenv("SERVER")
	if address == "" {
		address = Address
	}

	noTls := os.Getenv("NO_TLS") == "1"

	var tlsOption grpc.DialOption
	if noTls {
		tlsOption = grpc.WithInsecure()
	} else {
		tlsOption = grpc.WithTransportCredentials(credentials.NewClientTLSFromCert(nil, ""))
	}

	conn, err := grpc.Dial(address, tlsOption, grpc.WithUserAgent(UA))

	if err != nil {
		log.Fatalf("did not connect: %v", err)
	}

	return &Context{
		Log:    log,
		Client: msg.NewQpmClient(conn),
	}
}

开发者ID:Cutehacks，项目名称:qpm，代码行数:28，代码来源:context.go

示例5: DialGRPC

// DialGRPC returns a GRPC connection for use communicating with a Google cloud
// service, configured with the given ClientOptions.
func DialGRPC(ctx context.Context, opt ...cloud.ClientOption) (*grpc.ClientConn, error) {
	var o opts.DialOpt
	for _, opt := range opt {
		opt.Resolve(&o)
	}
	if o.HTTPClient != nil {
		return nil, errors.New("unsupported HTTP base transport specified")
	}
	if o.GRPCClient != nil {
		return o.GRPCClient, nil
	}
	if o.TokenSource == nil {
		var err error
		o.TokenSource, err = google.DefaultTokenSource(ctx, o.Scopes...)
		if err != nil {
			return nil, fmt.Errorf("google.DefaultTokenSource: %v", err)
		}
	}
	grpcOpts := []grpc.DialOption{
		grpc.WithPerRPCCredentials(oauth.TokenSource{o.TokenSource}),
		grpc.WithTransportCredentials(credentials.NewClientTLSFromCert(nil, "")),
	}
	grpcOpts = append(grpcOpts, o.GRPCDialOpts...)
	if o.UserAgent != "" {
		grpcOpts = append(grpcOpts, grpc.WithUserAgent(o.UserAgent))
	}
	return grpc.Dial(o.Endpoint, grpcOpts...)
}

开发者ID:otsimo，项目名称:watch，代码行数:30，代码来源:dial.go

示例6: newPeerClientConnection

func newPeerClientConnection() (*grpc.ClientConn, error) {
	var opts []grpc.DialOption
	if viper.GetBool("peer.tls.enabled") {
		var sn string
		if viper.GetString("peer.tls.serverhostoverride") != "" {
			sn = viper.GetString("peer.tls.serverhostoverride")
		}
		var creds credentials.TransportAuthenticator
		if viper.GetString("peer.tls.cert.file") != "" {
			var err error
			creds, err = credentials.NewClientTLSFromFile(viper.GetString("peer.tls.cert.file"), sn)
			if err != nil {
				grpclog.Fatalf("Failed to create TLS credentials %v", err)
			}
		} else {
			creds = credentials.NewClientTLSFromCert(nil, sn)
		}
		opts = append(opts, grpc.WithTransportCredentials(creds))
	}
	opts = append(opts, grpc.WithTimeout(1*time.Second))
	opts = append(opts, grpc.WithBlock())
	opts = append(opts, grpc.WithInsecure())
	conn, err := grpc.Dial(getPeerAddress(), opts...)
	if err != nil {
		return nil, err
	}
	return conn, err
}

开发者ID:magooster，项目名称:obc-peer，代码行数:28，代码来源:chaincode.go

示例7: getDevopsClient

func getDevopsClient(peerAddress string) (obc.DevopsClient, error) {
	var opts []grpc.DialOption
	if viper.GetBool("pki.validity-period.tls.enabled") {
		var sn string
		if viper.GetString("pki.validity-period.tls.server-host-override") != "" {
			sn = viper.GetString("pki.validity-period.tls.server-host-override")
		}
		var creds credentials.TransportAuthenticator
		if viper.GetString("pki.validity-period.tls.cert.file") != "" {
			var err error
			creds, err = credentials.NewClientTLSFromFile(viper.GetString("pki.validity-period.tls.cert.file"), sn)
			if err != nil {
				grpclog.Fatalf("Failed to create TLS credentials %v", err)
			}
		} else {
			creds = credentials.NewClientTLSFromCert(nil, sn)
		}
		opts = append(opts, grpc.WithTransportCredentials(creds))
	}
	opts = append(opts, grpc.WithTimeout(systemChaincodeTimeout))
	opts = append(opts, grpc.WithBlock())
	opts = append(opts, grpc.WithInsecure())
	conn, err := grpc.Dial(peerAddress, opts...)

	if err != nil {
		return nil, fmt.Errorf("Error trying to connect to local peer: %s", err)
	}

	devopsClient := obc.NewDevopsClient(conn)
	return devopsClient, nil
}

开发者ID:tenc，项目名称:obc-peer-pre-public，代码行数:31，代码来源:validity_period.go

示例8: discovery

func discovery() {
	var err error
	var opts []grpc.DialOption

	if insecureDiscovery {
		opts = append(opts, grpc.WithInsecure())
	} else {
		auth := credentials.NewClientTLSFromCert(nil, getServerName(discoveryServiceURL))
		opts = append(opts, grpc.WithTransportCredentials(auth))
	}
	discoveryConn, err = grpc.Dial(discoveryServiceURL, opts...)
	if err != nil {
		logrus.Fatalf("grpc.go: error while connection to discovery service %v", err)
	}
	discoveryClient = pb.NewDiscoveryClient(discoveryConn)
	ctx, _ := context.WithTimeout(context.Background(), 5*time.Second)
	res, err := discoveryClient.Get(ctx, &pb.DiscoveryRequest{
		Environment: discoveryEnv,
		SdkVersion:  Version + "-otsimoctl",
		OsName:      runtime.GOOS,
	})
	if err != nil {
		logrus.Fatalf("grpc:go: failed to get discovery config err=%v", err)
	}
	discoveryServices = res
}

开发者ID:otsimo，项目名称:otsimoctl，代码行数:26，代码来源:grpc.go

示例9: TestNewSecureGRPCServer

func TestNewSecureGRPCServer(t *testing.T) {

	testAddress := "localhost:9055"
	srv, err := comm.NewGRPCServer(testAddress, []byte(selfSignedKeyPEM),
		[]byte(selfSignedCertPEM), nil, nil)
	//check for error
	if err != nil {
		t.Fatalf("Failed to return new GRPC server: %v", err)
	}

	//make sure our properties are as expected
	//resolve the address
	addr, err := net.ResolveTCPAddr("tcp", testAddress)
	assert.Equal(t, srv.Address(), addr.String())
	assert.Equal(t, srv.Listener().Addr().String(), addr.String())

	//check the server certificate
	cert, _ := tls.X509KeyPair([]byte(selfSignedCertPEM), []byte(selfSignedKeyPEM))
	assert.Equal(t, srv.ServerCertificate(), cert)

	//TlSEnabled should be true
	assert.Equal(t, srv.TLSEnabled(), true)

	//register the GRPC test server
	testpb.RegisterTestServiceServer(srv.Server(), &testServiceServer{})

	//start the server
	go srv.Start()

	defer srv.Stop()
	//should not be needed
	time.Sleep(10 * time.Millisecond)

	//create the client credentials
	certPool := x509.NewCertPool()

	if !certPool.AppendCertsFromPEM([]byte(selfSignedCertPEM)) {

		t.Fatal("Failed to append certificate to client credentials")
	}

	creds := credentials.NewClientTLSFromCert(certPool, "")

	//GRPC client options
	var dialOptions []grpc.DialOption
	dialOptions = append(dialOptions, grpc.WithTransportCredentials(creds))

	//invoke the EmptyCall service
	_, err = invokeEmptyCall(testAddress, dialOptions)

	if err != nil {
		t.Logf("GRPC client failed to invoke the EmptyCall service on %s: %v",
			testAddress, err)
	} else {
		t.Log("GRPC client successfully invoked the EmptyCall service: " + testAddress)
	}
}

开发者ID:hyperledger，项目名称:fabric，代码行数:57，代码来源:server_test.go

示例10: demoConn

func demoConn(gwid string) {
	var opts []grpc.DialOption
	var err error
	if demoTLS {
		var sn string
		if demoOver != "" {
			sn = demoOver
		}
		var creds credentials.TransportCredentials
		if demoFile != "" {

			creds, err = credentials.NewClientTLSFromFile(demoFile, sn)
			if err != nil {
				grpclog.Fatalf("Failed to create TLS credentials %v", err)
			}
		} else {
			creds = credentials.NewClientTLSFromCert(nil, sn)
		}
		opts = append(opts, grpc.WithTransportCredentials(creds))
	} else {
		opts = append(opts, grpc.WithInsecure())
	}
	conn, err := grpc.Dial(demoAddr, opts...)
	if err != nil {
		grpclog.Fatalf("fail to dial: %v", err)
	}
	//defer demoCliConn.Close()

	demoClient = demo.NewRPCClient(conn)

	go func() {
		for {

			ctx, _ := context.WithTimeout(context.Background(), 1*time.Second)

			r, err := demoClient.GWSRPCCHECK(ctx, &demo.GWSRPCCHECKSEND{GWSRPCID: gwid})
			if err != nil {
				//grpclog.Printf("demoClient %v: ", err)
				time.Sleep(100 * time.Millisecond)
				continue
			}

			if r.GWSRPCID != demoID {
				demoID = r.GWSRPCID
				h.reinitall <- "demo"
			}

			time.Sleep(100 * time.Millisecond)

		}

	}()

}

开发者ID:vanishs，项目名称:gwsrpc，代码行数:54，代码来源:gengateway.go

示例11: main

func main() {
	flag.Parse()
	var opts []grpc.DialOption

	// 如何使用: TLS呢?
	if *tls {
		var sn string
		if *serverHostOverride != "" {
			sn = *serverHostOverride
		}
		var creds credentials.TransportAuthenticator
		if *caFile != "" {
			var err error
			creds, err = credentials.NewClientTLSFromFile(*caFile, sn)
			if err != nil {
				grpclog.Fatalf("Failed to create TLS credentials %v", err)
			}
		} else {
			creds = credentials.NewClientTLSFromCert(nil, sn)
		}
		opts = append(opts, grpc.WithTransportCredentials(creds))
	} else {
		opts = append(opts, grpc.WithInsecure())
	}

	// 2. 连接服务器
	conn, err := grpc.Dial(*serverAddr, opts...)
	if err != nil {
		grpclog.Fatalf("fail to dial: %v", err)
	}
	defer conn.Close()
	client := pb.NewRouteGuideClient(conn)

	// Looking for a valid feature
	printFeature(client, &pb.Point{409146138, -746188906})

	// Feature missing.
	printFeature(client, &pb.Point{0, 0})

	// Looking for features between 40, -75 and 42, -73.
	printFeatures(client, &pb.Rectangle{&pb.Point{400000000, -750000000}, &pb.Point{420000000, -730000000}})

	// RecordRoute
	runRecordRoute(client)

	// RouteChat
	runRouteChat(client)
}

开发者ID:wfxiang08，项目名称:grpc-go，代码行数:48，代码来源:client.go

示例12: discoveryGet

func discoveryGet(clictx *cli.Context) error {
	var err error
	var opts []grpc.DialOption

	if insecureDiscovery {
		opts = append(opts, grpc.WithInsecure())
	} else {
		auth := credentials.NewClientTLSFromCert(nil, getServerName(discoveryServiceURL))
		opts = append(opts, grpc.WithTransportCredentials(auth))
	}
	logrus.Infof("discovery.go: connecting to discovery service at url %s", discoveryServiceURL)

	dcon, err := grpc.Dial(discoveryServiceURL, opts...)
	if err != nil {
		logrus.Fatalf("discovery.go: error while connection to discovery service %v", err)
	}
	dc := pb.NewDiscoveryClient(dcon)
	ctx, _ := context.WithTimeout(context.Background(), 5*time.Second)

	req := pb.DiscoveryRequest{}
	if filename := clictx.String("filename"); filename != "" {
		d, err := os.Open(filename)
		if err != nil {
			return err
		}
		defer d.Close()
		if err := jsonpb.Unmarshal(d, &req); err != nil {
			return err
		}
	} else {
		req.Environment = clictx.String("env")
		req.SdkVersion = clictx.String("sdk")
		req.OsName = clictx.String("os")
		req.CountryCode = clictx.String("country-code")
		req.AppBundleId = clictx.String("bundle-id")
		req.AppBundleVersion = clictx.String("bundle-version")
	}
	res, err := dc.Get(ctx, &req)
	if err != nil {
		return err
	}
	m := jsonpb.Marshaler{EnumsAsInts: false, EmitDefaults: true, Indent: "  "}
	s, err := m.MarshalToString(res)
	fmt.Println(s)
	return nil
}

开发者ID:otsimo，项目名称:otsimoctl，代码行数:46，代码来源:discovery.go

示例13: InitTLSForPeer

// InitTLSForPeer returns TLS credentials for peer
func InitTLSForPeer() credentials.TransportCredentials {
	var sn string
	if viper.GetString("peer.tls.serverhostoverride") != "" {
		sn = viper.GetString("peer.tls.serverhostoverride")
	}
	var creds credentials.TransportCredentials
	if viper.GetString("peer.tls.cert.file") != "" {
		var err error
		creds, err = credentials.NewClientTLSFromFile(viper.GetString("peer.tls.cert.file"), sn)
		if err != nil {
			grpclog.Fatalf("Failed to create TLS credentials %v", err)
		}
	} else {
		creds = credentials.NewClientTLSFromCert(nil, sn)
	}
	return creds
}

开发者ID:hyperledger，项目名称:fabric，代码行数:18，代码来源:connection.go

示例14: NewContext

func NewContext() *Context {
	log := log.New(os.Stderr, "QPM: ", log.LstdFlags)

	creds := credentials.NewClientTLSFromCert(nil, "")
	address := os.Getenv("SERVER")
	if address == "" {
		address = Address
	}
	conn, err := grpc.Dial(address, grpc.WithTransportCredentials(creds), grpc.WithUserAgent(UA))
	if err != nil {
		log.Fatalf("did not connect: %v", err)
	}

	return &Context{
		Log:    log,
		Client: msg.NewQpmClient(conn),
	}
}

开发者ID:benlau，项目名称:qpm，代码行数:18，代码来源:context.go

示例15: connectRegistry

func connectRegistry(c *Config) {
	var opts []grpc.DialOption
	jwtCreds := newOauthAccess(c)

	if discoveryServices.UseTls {
		auth := credentials.NewClientTLSFromCert(nil, getServerName(discoveryServices.RegistryGrpc))
		opts = append(opts, grpc.WithTransportCredentials(auth))
	} else {
		jwtCreds.RequireTLS = false
		opts = append(opts, grpc.WithInsecure())
	}
	opts = append(opts, grpc.WithPerRPCCredentials(&jwtCreds))

	registryConn, err := grpc.Dial(discoveryServices.RegistryGrpc, opts...)
	if err != nil {
		logrus.Fatalf("grpc.go: Error while connection to registry service %v\n", err)
	}
	registryClient = pb.NewRegistryServiceClient(registryConn)
}

开发者ID:otsimo，项目名称:otsimoctl，代码行数:19，代码来源:grpc.go

示例16: Init

func (g *grpcResolver) Init() error {
	var err error
	var creds credentials.TransportCredentials
	if g.CAFile == "" {
		creds = credentials.NewClientTLSFromCert(nil, "")
	} else {
		creds, err = credentials.NewClientTLSFromFile(g.CAFile, "")
		if err != nil {
			return err
		}
	}

	conn, err := grpc.Dial(g.Upstream, grpc.WithTransportCredentials(creds))
	if err != nil {
		return err
	}

	g.client = pb.NewDNSServiceClient(conn)
	return nil
}

开发者ID:albertito，项目名称:dnss，代码行数:20，代码来源:resolver.go

示例17: DialGRPC

func DialGRPC(ctx context.Context, opts ...ClientOption) (*grpc.ClientConn, error) {
	settings := &ClientSettings{}
	clientOptions(opts).Resolve(settings)

	if settings.Connection != nil {
		return settings.Connection, nil
	}
	var dialOpts = settings.DialOptions
	if len(dialOpts) == 0 {
		tokenSource, err := google.DefaultTokenSource(ctx, settings.Scopes...)
		if err != nil {
			return nil, fmt.Errorf("google.DefaultTokenSource: %v", err)
		}
		dialOpts = []grpc.DialOption{
			grpc.WithPerRPCCredentials(oauth.TokenSource{TokenSource: tokenSource}),
			grpc.WithTransportCredentials(credentials.NewClientTLSFromCert(nil, "")),
		}
	}
	return grpc.Dial(settings.Endpoint, dialOpts...)
}

开发者ID:vburenin，项目名称:firempq，代码行数:20，代码来源:dial.go

示例18: newConn

func newConn(address string, useTLS, testCA bool, tlsServerName string) (*grpc.ClientConn, error) {
	var opts []grpc.DialOption
	if useTLS {
		var sn string
		if tlsServerName != "" {
			sn = tlsServerName
		}
		var creds credentials.TransportCredentials
		if testCA {
			var err error
			creds, err = credentials.NewClientTLSFromFile(testCAFile, sn)
			if err != nil {
				grpclog.Fatalf("Failed to create TLS credentials %v", err)
			}
		} else {
			creds = credentials.NewClientTLSFromCert(nil, sn)
		}
		opts = append(opts, grpc.WithTransportCredentials(creds))
	} else {
		opts = append(opts, grpc.WithInsecure())
	}
	return grpc.Dial(address, opts...)
}

开发者ID:tamird，项目名称:grpc-go，代码行数:23，代码来源:main.go

示例19: ConnectToServices

func (c *OtsimoAccounts) ConnectToServices(dexServiceUrl, apiServiceUrl string) {
	jwtCreds := NewOauthAccess(c.tm)

	var opts []grpc.DialOption
	if c.roots != nil {
		opts = append(opts, grpc.WithTransportCredentials(credentials.NewClientTLSFromCert(c.roots, "")))
	} else {
		jwtCreds.RequireTLS = false
		opts = append(opts, grpc.WithInsecure())
	}
	opts = append(opts, grpc.WithPerRPCCredentials(&jwtCreds))
	conn, err := grpc.Dial(dexServiceUrl, opts...)
	if err != nil {
		log.Fatalf("Error while connection to dex service %v\n", err)
	}
	c.Dex = pb.NewDexServiceClient(conn)

	apiConn, err := grpc.Dial(apiServiceUrl, opts...)
	if err != nil {
		log.Fatalf("Error while connection to api service %v\n", err)
	}
	c.Api = apipb.NewApiServiceClient(apiConn)
}

开发者ID:otsimo，项目名称:accounts，代码行数:23，代码来源:accounts.go

示例20: DialGRPC

// DialGRPC returns a GRPC connection for use communicating with a Google cloud
// service, configured with the given ClientOptions. Most developers should
// call the relevant NewClient method for the target service rather than
// invoking DialGRPC directly.
func DialGRPC(ctx context.Context, opt ...ClientOption) (*grpc.ClientConn, error) {
	var o dialOpt
	for _, opt := range opt {
		opt.resolve(&o)
	}
	if o.httpClient != nil {
		return nil, errors.New("unsupported HTTP base transport specified")
	}
	if o.grpcClient != nil {
		return o.grpcClient, nil
	}
	if o.tokenSource == nil {
		var err error
		o.tokenSource, err = google.DefaultTokenSource(ctx, o.scopes...)
		if err != nil {
			return nil, fmt.Errorf("google.DefaultTokenSource: %v", err)
		}
	}
	grpcOpts := []grpc.DialOption{
		grpc.WithPerRPCCredentials(credentials.TokenSource{o.tokenSource}),
		grpc.WithTransportCredentials(credentials.NewClientTLSFromCert(nil, "")),
	}
	return grpc.Dial(o.endpoint, grpcOpts...)
}

开发者ID:rizzles，项目名称:convert，代码行数:28，代码来源:option.go

注：本文中的google/golang.org/grpc/credentials.NewClientTLSFromCert函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。