move client to state attr + s2s idea

cmd/server.go

@@ -30,7 +30,8 @@ var (
 	statesaveWorker  *worker.Worker
 	srv              *server.Server
 	certs            *tls.Config
-	extensions      extension.Extensions
+	extensionsClient extension.Extensions
+	extensionsServer extension.Extensions
 )
 
 // serverCmd represents the serve command
@@ -39,16 +40,14 @@ var serverCmd = &cobra.Command{
 	Short:   "Runs the yaja server",
 	Example: "yaja serve -c /etc/yaja.conf",
 	Run: func(cmd *cobra.Command, args []string) {
-		var err error
+
-		err = file.ReadTOML(configPath, configData)
+		if err := file.ReadTOML(configPath, configData); err != nil {
-		if err != nil {
 			log.Fatal("unable to load config file:", err)
 		}
 
 		log.SetLevel(configData.Logging.Level)
 
-		err = file.ReadJSON(configData.StatePath, db)
+		if err := file.ReadJSON(configData.StatePath, db); err != nil {
-		if err != nil {
 			log.Warn("unable to load state file:", err)
 		}
 
@@ -81,9 +80,11 @@ var serverCmd = &cobra.Command{
 			ClientAddr:       configData.Address.Client,
 			ServerAddr:       configData.Address.Server,
 			LoggingClient:    configData.Logging.LevelClient,
+			LoggingServer:    configData.Logging.LevelServer,
 			RegisterEnable:   configData.Register.Enable,
 			RegisterDomains:  configData.Register.Domains,
-			Extensions:      extensions,
+			ExtensionsServer: extensionsServer,
+			ExtensionsClient: extensionsClient,
 		}
 
 		go statesaveWorker.Start()
@@ -122,13 +123,14 @@ func quit() {
 func reload() {
 	log.Info("start reloading...")
 	var configNewData *config.Config
-	err := file.ReadTOML(configPath, configNewData)
+
-	if err != nil {
+	if err := file.ReadTOML(configPath, configNewData); err != nil {
 		log.Warn("unable to load config file:", err)
 		return
 	}
 	log.SetLevel(configNewData.Logging.Level)
 	srv.LoggingClient = configNewData.Logging.LevelClient
+	srv.LoggingServer = configNewData.Logging.LevelServer
 	srv.RegisterEnable = configNewData.Register.Enable
 	srv.RegisterDomains = configNewData.Register.Domains
 
@@ -164,7 +166,8 @@ func reload() {
 			LoggingClient:    configNewData.Logging.LevelClient,
 			RegisterEnable:   configNewData.Register.Enable,
 			RegisterDomains:  configNewData.Register.Domains,
-			Extensions:      extensions,
+			ExtensionsServer: extensionsServer,
+			ExtensionsClient: extensionsClient,
 		}
 		log.Warn("reloading need a restart:")
 		go newServer.Start()
@@ -178,7 +181,7 @@ func reload() {
 }
 
 func init() {
-	extensions = append(extensions,
+	extensionsClient = append(extensionsClient,
 		&extension.Message{},
 		&extension.Presence{},
 		extension.IQExtensions{
@@ -188,10 +191,15 @@ func init() {
 			&extension.IQDisco{Database: db},
 			&extension.IQRoster{Database: db},
 			&extension.IQExtensionDiscovery{GetSpaces: func() []string {
-				return extensions.Spaces()
+				return extensionsClient.Spaces()
 			}},
 		})
 
+	extensionsServer = append(extensionsServer,
+		extension.IQExtensions{
+			&extension.IQPing{},
+		})
+
 	RootCmd.AddCommand(serverCmd)
 	serverCmd.Flags().StringVarP(&configPath, "config", "c", "yaja.conf", "Path to configuration file")
 

config_example.conf

@@ -2,8 +2,9 @@ tlsdir = "tmp/ssl"
 state_path = "tmp/yaja.json"
 
 [logging]
-level = 3
+level = 5
 level_client = 6
+level_server = 6
 
 [register]
 enable = true

model/config/struct.go

@@ -10,6 +10,7 @@ type Config struct {
 	Logging   struct {
 		Level       log.Level `toml:"level"`
 		LevelClient log.Level `toml:"level_client"`
+		LevelServer log.Level `toml:"level_server"`
 	} `toml:"logging"`
 	Register struct {
 		Enable  bool     `toml:"enable"`

server/extension/iq_disco.go

@@ -24,8 +24,7 @@ func (ex *IQDisco) Get(msg *messages.IQ, client *utils.Client) bool {
 		Body    []byte   `xml:",innerxml"`
 	}
 	q := &query{}
-	err := xml.Unmarshal(msg.Body, q)
+	if err := xml.Unmarshal(msg.Body, q); err != nil {
-	if err != nil {
 		return false
 	}
 

server/extension/iq_discovery.go

@@ -23,8 +23,7 @@ func (ex *IQExtensionDiscovery) Get(msg *messages.IQ, client *utils.Client) bool
 		Body    []byte   `xml:",innerxml"`
 	}
 	q := &query{}
-	err := xml.Unmarshal(msg.Body, q)
+	if err := xml.Unmarshal(msg.Body, q); err != nil {
-	if err != nil {
 		return false
 	}
 

server/extension/iq_last.go

@@ -25,8 +25,7 @@ func (ex *IQLast) Get(msg *messages.IQ, client *utils.Client) bool {
 		Body    []byte   `xml:",innerxml"`
 	}
 	q := &query{}
-	err := xml.Unmarshal(msg.Body, q)
+	if err := xml.Unmarshal(msg.Body, q); err != nil {
-	if err != nil {
 		return false
 	}
 

server/extension/iq_ping.go

@@ -21,8 +21,7 @@ func (ex *IQPing) Get(msg *messages.IQ, client *utils.Client) bool {
 		XMLName xml.Name `xml:"urn:xmpp:ping ping"`
 	}
 	pq := &ping{}
-	err := xml.Unmarshal(msg.Body, pq)
+	if err := xml.Unmarshal(msg.Body, pq); err != nil {
-	if err != nil {
 		return false
 	}
 

server/extension/iq_private.go

@@ -27,8 +27,7 @@ func (ex *IQPrivate) Get(msg *messages.IQ, client *utils.Client) bool {
 
 	// query encode
 	q := &iqPrivateQuery{}
-	err := xml.Unmarshal(msg.Body, q)
+	if err := xml.Unmarshal(msg.Body, q); err != nil {
-	if err != nil {
 		return false
 	}
 

server/extension/iq_private_bookmarks.go

@@ -19,8 +19,7 @@ func (ex *IQPrivateBookmark) Handle(msg *messages.IQ, q *iqPrivateQuery, client
 		XMLName xml.Name `xml:"storage:bookmarks storage"`
 	}
 	s := &storage{}
-	err := xml.Unmarshal(q.Body, s)
+	if err := xml.Unmarshal(q.Body, s); err != nil {
-	if err != nil {
 		return false
 	}
 	/*

server/extension/iq_private_metacontacts.go

@@ -19,8 +19,7 @@ func (ex *IQPrivateMetacontact) Handle(msg *messages.IQ, q *iqPrivateQuery, clie
 		XMLName xml.Name `xml:"storage:metacontacts storage"`
 	}
 	s := &storage{}
-	err := xml.Unmarshal(q.Body, s)
+	if err := xml.Unmarshal(q.Body, s); err != nil {
-	if err != nil {
 		return false
 	}
 	/*

server/extension/iq_private_roster.go

@@ -20,8 +20,7 @@ func (ex *IQPrivateRoster) Handle(msg *messages.IQ, q *iqPrivateQuery, client *u
 		Body    []byte   `xml:",innerxml"`
 	}
 	r := &roster{}
-	err := xml.Unmarshal(q.Body, r)
+	if err := xml.Unmarshal(q.Body, r); err != nil {
-	if err != nil {
 		return false
 	}
 

server/extension/iq_roster.go

@@ -25,8 +25,7 @@ func (ex *IQRoster) Get(msg *messages.IQ, client *utils.Client) bool {
 		Body    []byte   `xml:",innerxml"`
 	}
 	q := &query{}
-	err := xml.Unmarshal(msg.Body, q)
+	if err := xml.Unmarshal(msg.Body, q); err != nil {
-	if err != nil {
 		return false
 	}
 

server/server.go

@@ -8,6 +8,7 @@ import (
 	"github.com/genofire/yaja/model"
 	"github.com/genofire/yaja/server/extension"
 	"github.com/genofire/yaja/server/toclient"
+	"github.com/genofire/yaja/server/toserver"
 	"github.com/genofire/yaja/server/utils"
 	log "github.com/sirupsen/logrus"
 	"golang.org/x/crypto/acme/autocert"
@@ -20,9 +21,11 @@ type Server struct {
 	ServerAddr       []string
 	Database         *database.State
 	LoggingClient    log.Level
+	LoggingServer    log.Level
 	RegisterEnable   bool
 	RegisterDomains  []string
-	Extensions      extension.Extensions
+	ExtensionsClient extension.Extensions
+	ExtensionsServer extension.Extensions
 }
 
 func (srv *Server) Start() {
@@ -69,15 +72,33 @@ func (srv *Server) listenClient(c2s net.Listener) {
 
 func (srv *Server) handleServer(conn net.Conn) {
 	log.Info("new server connection:", conn.RemoteAddr())
+
+	client := utils.NewClient(conn, srv.LoggingClient)
+	client.Log = client.Log.WithField("c", "s2s")
+
+	state := toserver.ConnectionStartup(srv.Database, srv.TLSConfig, srv.TLSManager, srv.ExtensionsServer, client)
+
+	for {
+		state = state.Process()
+		if state == nil {
+			client.Log.Info("disconnect")
+			client.Close()
+			return
+		}
+		// run next state
+	}
 }
 
 func (srv *Server) handleClient(conn net.Conn) {
 	log.Info("new client connection:", conn.RemoteAddr())
-	client := utils.NewClient(conn, srv.LoggingClient)
+
-	state := toclient.ConnectionStartup(srv.Database, srv.TLSConfig, srv.TLSManager, srv.DomainRegisterAllowed, srv.Extensions)
+	client := utils.NewClient(conn, srv.LoggingServer)
+	client.Log = client.Log.WithField("c", "c2s")
+
+	state := toclient.ConnectionStartup(srv.Database, srv.TLSConfig, srv.TLSManager, srv.DomainRegisterAllowed, srv.ExtensionsClient, client)
 
 	for {
-		state, client = state.Process(client)
+		state = state.Process()
 		if state == nil {
 			client.Log.Info("disconnect")
 			client.Close()

server/state/connect.go

@@ -10,116 +10,107 @@ import (
 	"golang.org/x/crypto/acme/autocert"
 )
 
-// ConnectionStartup return steps through TCP TLS state
-func ConnectionStartup(after State, tlsconfig *tls.Config, tlsmgmt *autocert.Manager) State {
-	tlsupgrade := &TLSUpgrade{
-		Next:      after,
-		tlsconfig: tlsconfig,
-		tlsmgmt:   tlsmgmt,
-	}
-	stream := &Start{Next: tlsupgrade}
-	return stream
-}
-
 // Start state
 type Start struct {
 	Next   State
+	Client *utils.Client
 }
 
 // Process message
-func (state *Start) Process(client *utils.Client) (State, *utils.Client) {
+func (state *Start) Process() State {
-	client.Log = client.Log.WithField("state", "stream")
+	state.Client.Log = state.Client.Log.WithField("state", "stream")
-	client.Log.Debug("running")
+	state.Client.Log.Debug("running")
-	defer client.Log.Debug("leave")
+	defer state.Client.Log.Debug("leave")
 
-	element, err := client.Read()
+	element, err := state.Client.Read()
 	if err != nil {
-		client.Log.Warn("unable to read: ", err)
+		state.Client.Log.Warn("unable to read: ", err)
-		return nil, client
+		return nil
 	}
 	if element.Name.Space != messages.NSStream || element.Name.Local != "stream" {
-		client.Log.Warn("is no stream")
+		state.Client.Log.Warn("is no stream")
-		return state, client
+		return state
 	}
 	for _, attr := range element.Attr {
 		if attr.Name.Local == "to" {
-			client.JID = &model.JID{Domain: attr.Value}
+			state.Client.JID = &model.JID{Domain: attr.Value}
-			client.Log = client.Log.WithField("jid", client.JID.Full())
+			state.Client.Log = state.Client.Log.WithField("jid", state.Client.JID.Full())
 		}
 	}
-	if client.JID == nil {
+	if state.Client.JID == nil {
-		client.Log.Warn("no 'to' domain readed")
+		state.Client.Log.Warn("no 'to' domain readed")
-		return nil, client
+		return nil
 	}
 
-	fmt.Fprintf(client.Conn, `<?xml version='1.0'?>
+	fmt.Fprintf(state.Client.Conn, `<?xml version='1.0'?>
 		<stream:stream id='%x' version='1.0' xmlns='%s' xmlns:stream='%s'>`,
 		utils.CreateCookie(), messages.NSClient, messages.NSStream)
 
-	fmt.Fprintf(client.Conn, `<stream:features>
+	fmt.Fprintf(state.Client.Conn, `<stream:features>
 			<starttls xmlns='%s'>
 				<required/>
 			</starttls>
 		</stream:features>`,
 		messages.NSStream)
 
-	return state.Next, client
+	return state.Next
 }
 
 // TLSUpgrade state
 type TLSUpgrade struct {
 	Next       State
-	tlsconfig *tls.Config
+	Client     *utils.Client
-	tlsmgmt   *autocert.Manager
+	TLSConfig  *tls.Config
+	TLSManager *autocert.Manager
 }
 
 // Process message
-func (state *TLSUpgrade) Process(client *utils.Client) (State, *utils.Client) {
+func (state *TLSUpgrade) Process() State {
-	client.Log = client.Log.WithField("state", "tls upgrade")
+	state.Client.Log = state.Client.Log.WithField("state", "tls upgrade")
-	client.Log.Debug("running")
+	state.Client.Log.Debug("running")
-	defer client.Log.Debug("leave")
+	defer state.Client.Log.Debug("leave")
 
-	element, err := client.Read()
+	element, err := state.Client.Read()
 	if err != nil {
-		client.Log.Warn("unable to read: ", err)
+		state.Client.Log.Warn("unable to read: ", err)
-		return nil, client
+		return nil
 	}
 	if element.Name.Space != messages.NSTLS || element.Name.Local != "starttls" {
-		client.Log.Warn("is no starttls")
+		state.Client.Log.Warn("is no starttls", element)
-		return state, client
+		return nil
 	}
-	fmt.Fprintf(client.Conn, "<proceed xmlns='%s'/>", messages.NSTLS)
+	fmt.Fprintf(state.Client.Conn, "<proceed xmlns='%s'/>", messages.NSTLS)
 	// perform the TLS handshake
 	var tlsConfig *tls.Config
-	if m := state.tlsmgmt; m != nil {
+	if m := state.TLSManager; m != nil {
 		var cert *tls.Certificate
-		cert, err = m.GetCertificate(&tls.ClientHelloInfo{ServerName: client.JID.Domain})
+		cert, err = m.GetCertificate(&tls.ClientHelloInfo{ServerName: state.Client.JID.Domain})
 		if err != nil {
-			client.Log.Warn("no cert in tls manger found: ", err)
+			state.Client.Log.Warn("no cert in tls manger found: ", err)
-			return nil, client
+			return nil
 		}
 		tlsConfig = &tls.Config{
 			Certificates: []tls.Certificate{*cert},
 		}
 	}
 	if tlsConfig == nil {
-		tlsConfig = state.tlsconfig
+		tlsConfig = state.TLSConfig
 		if tlsConfig != nil {
-			tlsConfig.ServerName = client.JID.Domain
+			tlsConfig.ServerName = state.Client.JID.Domain
 		} else {
-			client.Log.Warn("no tls config found: ", err)
+			state.Client.Log.Warn("no tls config found: ", err)
-			return nil, client
+			return nil
 		}
 	}
 
-	tlsConn := tls.Server(client.Conn, tlsConfig)
+	tlsConn := tls.Server(state.Client.Conn, tlsConfig)
 	err = tlsConn.Handshake()
 	if err != nil {
-		client.Log.Warn("unable to tls handshake: ", err)
+		state.Client.Log.Warn("unable to tls handshake: ", err)
-		return nil, client
+		return nil
 	}
 	// restart the Connection
-	client.SetConnecting(tlsConn)
+	state.Client.SetConnecting(tlsConn)
 
-	return state.Next, client
+	return state.Next
 }

server/state/normal.go

@@ -0,0 +1,49 @@
+package state
+
+import (
+	"github.com/genofire/yaja/server/extension"
+	"github.com/genofire/yaja/server/utils"
+)
+
+// SendingClient state
+type SendingClient struct {
+	Next   State
+	Client *utils.Client
+}
+
+// Process messages
+func (state *SendingClient) Process() State {
+	state.Client.Log = state.Client.Log.WithField("state", "normal")
+	state.Client.Log.Debug("sending")
+	// sending
+	go func() {
+		select {
+		case msg := <-state.Client.Messages:
+			err := state.Client.Out.Encode(msg)
+			if err != nil {
+				state.Client.Log.Warn(err)
+			}
+		case <-state.Client.OnClose():
+			return
+		}
+	}()
+	state.Client.Log.Debug("receiving")
+	return state.Next
+}
+
+// ReceivingClient state
+type ReceivingClient struct {
+	Extensions extension.Extensions
+	Client     *utils.Client
+}
+
+// Process messages
+func (state *ReceivingClient) Process() State {
+	element, err := state.Client.Read()
+	if err != nil {
+		state.Client.Log.Warn("unable to read: ", err)
+		return nil
+	}
+	state.Extensions.Process(element, state.Client)
+	return state
+}

server/state/state.go

@@ -4,5 +4,27 @@ import "github.com/genofire/yaja/server/utils"
 
 // State processes the stream and moves to the next state
 type State interface {
-	Process(client *utils.Client) (State, *utils.Client)
+	Process() State
+}
+
+// Start state
+type Debug struct {
+	Next   State
+	Client *utils.Client
+}
+
+// Process message
+func (state *Debug) Process() State {
+	state.Client.Log = state.Client.Log.WithField("state", "debug")
+	state.Client.Log.Debug("running")
+	defer state.Client.Log.Debug("leave")
+
+	element, err := state.Client.Read()
+	if err != nil {
+		state.Client.Log.Warn("unable to read: ", err)
+		return nil
+	}
+	state.Client.Log.Info(element)
+
+	return state.Next
 }

server/toclient/connect.go

@@ -16,51 +16,60 @@ import (
 )
 
 // ConnectionStartup return steps through TCP TLS state
-func ConnectionStartup(db *database.State, tlsconfig *tls.Config, tlsmgmt *autocert.Manager, registerAllowed utils.DomainRegisterAllowed, extensions []extension.Extension) state.State {
+func ConnectionStartup(db *database.State, tlsconfig *tls.Config, tlsmgmt *autocert.Manager, registerAllowed utils.DomainRegisterAllowed, extensions extension.Extensions, c *utils.Client) state.State {
-	receiving := &ReceivingClient{Extensions: extensions}
+	receiving := &state.ReceivingClient{Extensions: extensions, Client: c}
-	sending := &SendingClient{Next: receiving}
+	sending := &state.SendingClient{Next: receiving, Client: c}
-	authedstream := &AuthedStream{Next: sending}
+	authedstream := &AuthedStream{Next: sending, Client: c}
-	authedstart := &AuthedStart{Next: authedstream}
+	authedstart := &AuthedStart{Next: authedstream, Client: c}
 	tlsauth := &SASLAuth{
 		Next:                  authedstart,
+		Client:                c,
 		database:              db,
 		domainRegisterAllowed: registerAllowed,
 	}
 	tlsstream := &TLSStream{
 		Next:                  tlsauth,
+		Client:                c,
 		domainRegisterAllowed: registerAllowed,
 	}
-	return state.ConnectionStartup(tlsstream, tlsconfig, tlsmgmt)
+	tlsupgrade := &state.TLSUpgrade{
+		Next:       tlsstream,
+		Client:     c,
+		TLSConfig:  tlsconfig,
+		TLSManager: tlsmgmt,
+	}
+	return &state.Start{Next: tlsupgrade, Client: c}
 }
 
 // TLSStream state
 type TLSStream struct {
 	Next                  state.State
+	Client                *utils.Client
 	domainRegisterAllowed utils.DomainRegisterAllowed
 }
 
 // Process messages
-func (state *TLSStream) Process(client *utils.Client) (state.State, *utils.Client) {
+func (state *TLSStream) Process() state.State {
-	client.Log = client.Log.WithField("state", "tls stream")
+	state.Client.Log = state.Client.Log.WithField("state", "tls stream")
-	client.Log.Debug("running")
+	state.Client.Log.Debug("running")
-	defer client.Log.Debug("leave")
+	defer state.Client.Log.Debug("leave")
 
-	element, err := client.Read()
+	element, err := state.Client.Read()
 	if err != nil {
-		client.Log.Warn("unable to read: ", err)
+		state.Client.Log.Warn("unable to read: ", err)
-		return nil, client
+		return nil
 	}
 	if element.Name.Space != messages.NSStream || element.Name.Local != "stream" {
-		client.Log.Warn("is no stream")
+		state.Client.Log.Warn("is no stream")
-		return state, client
+		return state
 	}
 
-	fmt.Fprintf(client.Conn, `<?xml version='1.0'?>
+	fmt.Fprintf(state.Client.Conn, `<?xml version='1.0'?>
 		<stream:stream id='%x' version='1.0' xmlns='%s' xmlns:stream='%s'>`,
 		utils.CreateCookie(), messages.NSClient, messages.NSStream)
 
-	if state.domainRegisterAllowed(client.JID) {
+	if state.domainRegisterAllowed(state.Client.JID) {
-		fmt.Fprintf(client.Conn, `<stream:features>
+		fmt.Fprintf(state.Client.Conn, `<stream:features>
 			<mechanisms xmlns='%s'>
 				<mechanism>PLAIN</mechanism>
 			</mechanisms>
@@ -68,7 +77,7 @@ func (state *TLSStream) Process(client *utils.Client) (state.State, *utils.Clien
 		</stream:features>`,
 			messages.NSSASL, messages.NSFeaturesIQRegister)
 	} else {
-		fmt.Fprintf(client.Conn, `<stream:features>
+		fmt.Fprintf(state.Client.Conn, `<stream:features>
 			<mechanisms xmlns='%s'>
 				<mechanism>PLAIN</mechanism>
 			</mechanisms>
@@ -76,124 +85,129 @@ func (state *TLSStream) Process(client *utils.Client) (state.State, *utils.Clien
 			messages.NSSASL)
 	}
 
-	return state.Next, client
+	return state.Next
 }
 
 // SASLAuth state
 type SASLAuth struct {
 	Next                  state.State
+	Client                *utils.Client
 	database              *database.State
 	domainRegisterAllowed utils.DomainRegisterAllowed
 }
 
 // Process messages
-func (state *SASLAuth) Process(client *utils.Client) (state.State, *utils.Client) {
+func (state *SASLAuth) Process() state.State {
-	client.Log = client.Log.WithField("state", "sasl auth")
+	state.Client.Log = state.Client.Log.WithField("state", "sasl auth")
-	client.Log.Debug("running")
+	state.Client.Log.Debug("running")
-	defer client.Log.Debug("leave")
+	defer state.Client.Log.Debug("leave")
 
 	// read the full auth stanza
-	element, err := client.Read()
+	element, err := state.Client.Read()
 	if err != nil {
-		client.Log.Warn("unable to read: ", err)
+		state.Client.Log.Warn("unable to read: ", err)
-		return nil, client
+		return nil
 	}
 	var auth messages.SASLAuth
-	if err = client.In.DecodeElement(&auth, element); err != nil {
+	if err = state.Client.In.DecodeElement(&auth, element); err != nil {
-		client.Log.Info("start substate for registration")
+		state.Client.Log.Info("start substate for registration")
 		return &RegisterFormRequest{
+			Next: &RegisterRequest{
+				Next:                  state.Next,
+				Client:                state.Client,
+				database:              state.database,
+				domainRegisterAllowed: state.domainRegisterAllowed,
+			},
+			Client:                state.Client,
 			element:               element,
 			domainRegisterAllowed: state.domainRegisterAllowed,
-			Next: &RegisterRequest{
+		}
-				domainRegisterAllowed: state.domainRegisterAllowed,
-				database:              state.database,
-				Next:                  state.Next,
-			},
-		}, client
 	}
 	data, err := base64.StdEncoding.DecodeString(auth.Body)
 	if err != nil {
-		client.Log.Warn("body decode: ", err)
+		state.Client.Log.Warn("body decode: ", err)
-		return nil, client
+		return nil
 	}
 	info := strings.Split(string(data), "\x00")
-	// should check that info[1] starts with client.JID
+	// should check that info[1] starts with state.Client.JID
-	client.JID.Local = info[1]
+	state.Client.JID.Local = info[1]
-	client.Log = client.Log.WithField("jid", client.JID.Full())
+	state.Client.Log = state.Client.Log.WithField("jid", state.Client.JID.Full())
-	success, err := state.database.Authenticate(client.JID, info[2])
+	success, err := state.database.Authenticate(state.Client.JID, info[2])
 	if err != nil {
-		client.Log.Warn("auth: ", err)
+		state.Client.Log.Warn("auth: ", err)
-		return nil, client
+		return nil
 	}
 	if success {
-		client.Log.Info("success auth")
+		state.Client.Log.Info("success auth")
-		fmt.Fprintf(client.Conn, "<success xmlns='%s'/>", messages.NSSASL)
+		fmt.Fprintf(state.Client.Conn, "<success xmlns='%s'/>", messages.NSSASL)
-		return state.Next, client
+		return state.Next
 	}
-	client.Log.Warn("failed auth")
+	state.Client.Log.Warn("failed auth")
-	fmt.Fprintf(client.Conn, "<failure xmlns='%s'><not-authorized/></failure>", messages.NSSASL)
+	fmt.Fprintf(state.Client.Conn, "<failure xmlns='%s'><not-authorized/></failure>", messages.NSSASL)
-	return nil, client
+	return nil
 
 }
 
 // AuthedStart state
 type AuthedStart struct {
 	Next   state.State
+	Client *utils.Client
 }
 
 // Process messages
-func (state *AuthedStart) Process(client *utils.Client) (state.State, *utils.Client) {
+func (state *AuthedStart) Process() state.State {
-	client.Log = client.Log.WithField("state", "authed started")
+	state.Client.Log = state.Client.Log.WithField("state", "authed started")
-	client.Log.Debug("running")
+	state.Client.Log.Debug("running")
-	defer client.Log.Debug("leave")
+	defer state.Client.Log.Debug("leave")
 
-	_, err := client.Read()
+	_, err := state.Client.Read()
 	if err != nil {
-		client.Log.Warn("unable to read: ", err)
+		state.Client.Log.Warn("unable to read: ", err)
-		return nil, client
+		return nil
 	}
-	fmt.Fprintf(client.Conn, `<?xml version='1.0'?>
+	fmt.Fprintf(state.Client.Conn, `<?xml version='1.0'?>
 		<stream:stream id='%x' version='1.0' xmlns='%s' xmlns:stream='%s'>`,
 		utils.CreateCookie(), messages.NSClient, messages.NSStream)
 
-	fmt.Fprintf(client.Conn, `<stream:features>
+	fmt.Fprintf(state.Client.Conn, `<stream:features>
 			<bind xmlns='%s'/>
 		</stream:features>`,
 		messages.NSBind)
 
-	return state.Next, client
+	return state.Next
 }
 
 // AuthedStream state
 type AuthedStream struct {
 	Next   state.State
+	Client *utils.Client
 }
 
 // Process messages
-func (state *AuthedStream) Process(client *utils.Client) (state.State, *utils.Client) {
+func (state *AuthedStream) Process() state.State {
-	client.Log = client.Log.WithField("state", "authed stream")
+	state.Client.Log = state.Client.Log.WithField("state", "authed stream")
-	client.Log.Debug("running")
+	state.Client.Log.Debug("running")
-	defer client.Log.Debug("leave")
+	defer state.Client.Log.Debug("leave")
 
 	// check that it's a bind request
 	// read bind request
-	element, err := client.Read()
+	element, err := state.Client.Read()
 	if err != nil {
-		client.Log.Warn("unable to read: ", err)
+		state.Client.Log.Warn("unable to read: ", err)
-		return nil, client
+		return nil
 	}
 	var msg messages.IQ
-	if err = client.In.DecodeElement(&msg, element); err != nil {
+	if err = state.Client.In.DecodeElement(&msg, element); err != nil {
-		client.Log.Warn("is no iq: ", err)
+		state.Client.Log.Warn("is no iq: ", err)
-		return nil, client
+		return nil
 	}
 	if msg.Type != messages.IQTypeSet {
-		client.Log.Warn("is no set iq")
+		state.Client.Log.Warn("is no set iq")
-		return nil, client
+		return nil
 	}
 	if msg.Error != nil {
-		client.Log.Warn("iq with error: ", msg.Error.Code)
+		state.Client.Log.Warn("iq with error: ", msg.Error.Code)
-		return nil, client
+		return nil
 	}
 	type query struct {
 		XMLName  xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-bind bind"`
@@ -202,26 +216,26 @@ func (state *AuthedStream) Process(client *utils.Client) (state.State, *utils.Cl
 	q := &query{}
 	err = xml.Unmarshal(msg.Body, q)
 	if err != nil {
-		client.Log.Warn("is no iq bind: ", err)
+		state.Client.Log.Warn("is no iq bind: ", err)
-		return nil, client
+		return nil
 	}
 	if q.Resource == "" {
-		client.JID.Resource = makeResource()
+		state.Client.JID.Resource = makeResource()
 	} else {
-		client.JID.Resource = q.Resource
+		state.Client.JID.Resource = q.Resource
 	}
-	client.Log = client.Log.WithField("jid", client.JID.Full())
+	state.Client.Log = state.Client.Log.WithField("jid", state.Client.JID.Full())
-	client.Out.Encode(&messages.IQ{
+	state.Client.Out.Encode(&messages.IQ{
 		Type: messages.IQTypeResult,
-		To:   client.JID.String(),
+		To:   state.Client.JID.String(),
-		From: client.JID.Domain,
+		From: state.Client.JID.Domain,
 		ID:   msg.ID,
 		Body: []byte(fmt.Sprintf(
 			`<bind xmlns='%s'>
 				<jid>%s</jid>
 			</bind>`,
-			messages.NSBind, client.JID.Full())),
+			messages.NSBind, state.Client.JID.Full())),
 	})
 
-	return state.Next, client
+	return state.Next
 }

server/toclient/normal.go

@@ -1,48 +0,0 @@
-package toclient
-
-import (
-	"github.com/genofire/yaja/server/extension"
-	"github.com/genofire/yaja/server/state"
-	"github.com/genofire/yaja/server/utils"
-)
-
-// SendingClient state
-type SendingClient struct {
-	Next state.State
-}
-
-// Process messages
-func (state *SendingClient) Process(client *utils.Client) (state.State, *utils.Client) {
-	client.Log = client.Log.WithField("state", "normal")
-	client.Log.Debug("sending")
-	// sending
-	go func() {
-		select {
-		case msg := <-client.Messages:
-			err := client.Out.Encode(msg)
-			if err != nil {
-				client.Log.Warn(err)
-			}
-		case <-client.OnClose():
-			return
-		}
-	}()
-	client.Log.Debug("receiving")
-	return state.Next, client
-}
-
-// ReceivingClient state
-type ReceivingClient struct {
-	Extensions extension.Extensions
-}
-
-// Process messages
-func (state *ReceivingClient) Process(client *utils.Client) (state.State, *utils.Client) {
-	element, err := client.Read()
-	if err != nil {
-		client.Log.Warn("unable to read: ", err)
-		return nil, client
-	}
-	state.Extensions.Process(element, client)
-	return state, client
-}

server/toclient/register.go

@@ -13,33 +13,34 @@ import (
 
 type RegisterFormRequest struct {
 	Next                  state.State
+	Client                *utils.Client
 	domainRegisterAllowed utils.DomainRegisterAllowed
 	element               *xml.StartElement
 }
 
 // Process message
-func (state *RegisterFormRequest) Process(client *utils.Client) (state.State, *utils.Client) {
+func (state *RegisterFormRequest) Process() state.State {
-	client.Log = client.Log.WithField("state", "register form request")
+	state.Client.Log = state.Client.Log.WithField("state", "register form request")
-	client.Log.Debug("running")
+	state.Client.Log.Debug("running")
-	defer client.Log.Debug("leave")
+	defer state.Client.Log.Debug("leave")
 
-	if !state.domainRegisterAllowed(client.JID) {
+	if !state.domainRegisterAllowed(state.Client.JID) {
-		client.Log.Error("unpossible to reach this state, register on this domain is not allowed")
+		state.Client.Log.Error("unpossible to reach this state, register on this domain is not allowed")
-		return nil, client
+		return nil
 	}
 
 	var msg messages.IQ
-	if err := client.In.DecodeElement(&msg, state.element); err != nil {
+	if err := state.Client.In.DecodeElement(&msg, state.element); err != nil {
-		client.Log.Warn("is no iq: ", err)
+		state.Client.Log.Warn("is no iq: ", err)
-		return state, client
+		return state
 	}
 	if msg.Type != messages.IQTypeGet {
-		client.Log.Warn("is no get iq")
+		state.Client.Log.Warn("is no get iq")
-		return state, client
+		return state
 	}
 	if msg.Error != nil {
-		client.Log.Warn("iq with error: ", msg.Error.Code)
+		state.Client.Log.Warn("iq with error: ", msg.Error.Code)
-		return state, client
+		return state
 	}
 	type query struct {
 		XMLName xml.Name `xml:"query"`
@@ -48,13 +49,13 @@ func (state *RegisterFormRequest) Process(client *utils.Client) (state.State, *u
 	err := xml.Unmarshal(msg.Body, q)
 
 	if q.XMLName.Space != messages.NSIQRegister || err != nil {
-		client.Log.Warn("is no iq register: ", err)
+		state.Client.Log.Warn("is no iq register: ", err)
-		return nil, client
+		return nil
 	}
-	client.Out.Encode(&messages.IQ{
+	state.Client.Out.Encode(&messages.IQ{
 		Type: messages.IQTypeResult,
-		To:   client.JID.String(),
+		To:   state.Client.JID.String(),
-		From: client.JID.Domain,
+		From: state.Client.JID.Domain,
 		ID:   msg.ID,
 		Body: []byte(fmt.Sprintf(`<query xmlns='%s'><instructions>
 					Choose a username and password for use with this service.
@@ -63,43 +64,44 @@ func (state *RegisterFormRequest) Process(client *utils.Client) (state.State, *u
 				<password/>
 			</query>`, messages.NSIQRegister)),
 	})
-	return state.Next, client
+	return state.Next
 }
 
 type RegisterRequest struct {
 	Next                  state.State
+	Client                *utils.Client
 	database              *database.State
 	domainRegisterAllowed utils.DomainRegisterAllowed
 }
 
 // Process message
-func (state *RegisterRequest) Process(client *utils.Client) (state.State, *utils.Client) {
+func (state *RegisterRequest) Process() state.State {
-	client.Log = client.Log.WithField("state", "register request")
+	state.Client.Log = state.Client.Log.WithField("state", "register request")
-	client.Log.Debug("running")
+	state.Client.Log.Debug("running")
-	defer client.Log.Debug("leave")
+	defer state.Client.Log.Debug("leave")
 
-	if !state.domainRegisterAllowed(client.JID) {
+	if !state.domainRegisterAllowed(state.Client.JID) {
-		client.Log.Error("unpossible to reach this state, register on this domain is not allowed")
+		state.Client.Log.Error("unpossible to reach this state, register on this domain is not allowed")
-		return nil, client
+		return nil
 	}
 
-	element, err := client.Read()
+	element, err := state.Client.Read()
 	if err != nil {
-		client.Log.Warn("unable to read: ", err)
+		state.Client.Log.Warn("unable to read: ", err)
-		return nil, client
+		return nil
 	}
 	var msg messages.IQ
-	if err = client.In.DecodeElement(&msg, element); err != nil {
+	if err = state.Client.In.DecodeElement(&msg, element); err != nil {
-		client.Log.Warn("is no iq: ", err)
+		state.Client.Log.Warn("is no iq: ", err)
-		return state, client
+		return state
 	}
 	if msg.Type != messages.IQTypeGet {
-		client.Log.Warn("is no get iq")
+		state.Client.Log.Warn("is no get iq")
-		return state, client
+		return state
 	}
 	if msg.Error != nil {
-		client.Log.Warn("iq with error: ", msg.Error.Code)
+		state.Client.Log.Warn("iq with error: ", msg.Error.Code)
-		return state, client
+		return state
 	}
 	type query struct {
 		XMLName  xml.Name `xml:"query"`
@@ -109,19 +111,19 @@ func (state *RegisterRequest) Process(client *utils.Client) (state.State, *utils
 	q := &query{}
 	err = xml.Unmarshal(msg.Body, q)
 	if err != nil {
-		client.Log.Warn("is no iq register: ", err)
+		state.Client.Log.Warn("is no iq register: ", err)
-		return nil, client
+		return nil
 	}
 
-	client.JID.Local = q.Username
+	state.Client.JID.Local = q.Username
-	client.Log = client.Log.WithField("jid", client.JID.Full())
+	state.Client.Log = state.Client.Log.WithField("jid", state.Client.JID.Full())
-	account := model.NewAccount(client.JID, q.Password)
+	account := model.NewAccount(state.Client.JID, q.Password)
 	err = state.database.AddAccount(account)
 	if err != nil {
-		client.Out.Encode(&messages.IQ{
+		state.Client.Out.Encode(&messages.IQ{
 			Type: messages.IQTypeResult,
-			To:   client.JID.String(),
+			To:   state.Client.JID.String(),
-			From: client.JID.Domain,
+			From: state.Client.JID.Domain,
 			ID:   msg.ID,
 			Body: []byte(fmt.Sprintf(`<query xmlns='%s'>
 					<username>%s</username>
@@ -136,16 +138,16 @@ func (state *RegisterRequest) Process(client *utils.Client) (state.State, *utils
 				},
 			},
 		})
-		client.Log.Warn("database error: ", err)
+		state.Client.Log.Warn("database error: ", err)
-		return state, client
+		return state
 	}
-	client.Out.Encode(&messages.IQ{
+	state.Client.Out.Encode(&messages.IQ{
 		Type: messages.IQTypeResult,
-		To:   client.JID.String(),
+		To:   state.Client.JID.String(),
-		From: client.JID.Domain,
+		From: state.Client.JID.Domain,
 		ID:   msg.ID,
 	})
 
-	client.Log.Infof("registered client %s", client.JID.Bare())
+	state.Client.Log.Infof("registered client %s", state.Client.JID.Bare())
-	return state.Next, client
+	return state.Next
 }

server/toserver/connect.go

@@ -0,0 +1,141 @@
+package toserver
+
+import (
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/xml"
+	"fmt"
+
+	"github.com/genofire/yaja/database"
+	"github.com/genofire/yaja/messages"
+	"github.com/genofire/yaja/server/extension"
+	"github.com/genofire/yaja/server/state"
+	"github.com/genofire/yaja/server/utils"
+	"golang.org/x/crypto/acme/autocert"
+)
+
+// ConnectionStartup return steps through TCP TLS state
+func ConnectionStartup(db *database.State, tlsconfig *tls.Config, tlsmgmt *autocert.Manager, extensions extension.Extensions, c *utils.Client) state.State {
+	receiving := &state.ReceivingClient{Extensions: extensions, Client: c}
+	sending := &state.SendingClient{Next: receiving, Client: c}
+	tlsstream := &TLSStream{
+		Next:   sending,
+		Client: c,
+	}
+	tlsupgrade := &state.TLSUpgrade{
+		Next:       tlsstream,
+		Client:     c,
+		TLSConfig:  tlsconfig,
+		TLSManager: tlsmgmt,
+	}
+	dail := &Dailback{
+		Next:   tlsupgrade,
+		Client: c,
+	}
+	return &state.Start{Next: dail, Client: c}
+}
+
+// TLSStream state
+type Dailback struct {
+	Next   state.State
+	Client *utils.Client
+}
+
+// Process messages
+func (state *Dailback) Process() state.State {
+	state.Client.Log = state.Client.Log.WithField("state", "dialback")
+	state.Client.Log.Debug("running")
+	defer state.Client.Log.Debug("leave")
+
+	element, err := state.Client.Read()
+	if err != nil {
+		state.Client.Log.Warn("unable to read: ", err)
+		return nil
+	}
+
+	// dailback encode
+	type dailback struct {
+		XMLName xml.Name `xml:"urn:xmpp:ping ping"`
+	}
+	db := &dailback{}
+	if err = state.Client.In.DecodeElement(db, element); err != nil {
+		return state.Next
+	}
+
+	state.Client.Log.Info(db)
+	return state.Next
+}
+
+// TLSStream state
+type TLSStream struct {
+	Next                  state.State
+	Client                *utils.Client
+	domainRegisterAllowed utils.DomainRegisterAllowed
+}
+
+// Process messages
+func (state *TLSStream) Process() state.State {
+	state.Client.Log = state.Client.Log.WithField("state", "tls stream")
+	state.Client.Log.Debug("running")
+	defer state.Client.Log.Debug("leave")
+
+	element, err := state.Client.Read()
+	if err != nil {
+		state.Client.Log.Warn("unable to read: ", err)
+		return nil
+	}
+	if element.Name.Space != messages.NSStream || element.Name.Local != "stream" {
+		state.Client.Log.Warn("is no stream")
+		return state
+	}
+
+	fmt.Fprintf(state.Client.Conn, `<?xml version='1.0'?>
+		<stream:stream id='%x' version='1.0' xmlns='%s' xmlns:stream='%s'>`,
+		utils.CreateCookie(), messages.NSClient, messages.NSStream)
+
+	fmt.Fprintf(state.Client.Conn, `<stream:features>
+			<mechanisms xmlns='%s'>
+				<mechanism>EXTERNAL</mechanism>
+			</mechanisms>
+		</stream:features>`,
+		messages.NSSASL)
+
+	return state.Next
+}
+
+// SASLAuth state
+type SASLAuth struct {
+	Next                  state.State
+	Client                *utils.Client
+	database              *database.State
+	domainRegisterAllowed utils.DomainRegisterAllowed
+}
+
+// Process messages
+func (state *SASLAuth) Process() state.State {
+	state.Client.Log = state.Client.Log.WithField("state", "sasl auth")
+	state.Client.Log.Debug("running")
+	defer state.Client.Log.Debug("leave")
+
+	// read the full auth stanza
+	element, err := state.Client.Read()
+	if err != nil {
+		state.Client.Log.Warn("unable to read: ", err)
+		return nil
+	}
+	var auth messages.SASLAuth
+	if err = state.Client.In.DecodeElement(&auth, element); err != nil {
+		return nil
+	}
+	data, err := base64.StdEncoding.DecodeString(auth.Body)
+	if err != nil {
+		state.Client.Log.Warn("body decode: ", err)
+		return nil
+	}
+
+	state.Client.Log.Debug(auth.Mechanism, string(data))
+
+	state.Client.Log.Info("success auth")
+	fmt.Fprintf(state.Client.Conn, "<success xmlns='%s'/>", messages.NSSASL)
+	return state.Next
+}

server/utils/client.go

@@ -30,7 +30,7 @@ func NewClient(conn net.Conn, level log.Level) *Client {
 		Log:      log.NewEntry(logger),
 		In:       xml.NewDecoder(conn),
 		Out:      xml.NewEncoder(conn),
-		Messages: make(chan interface{}, 1000),
+		Messages: make(chan interface{}),
 		close:    make(chan interface{}),
 	}
 	return client