Merge pull request #186

* Updated the xmpp.NewClient call in the README.md example to pass the config parameter as a pointer (&config) instead of a value.
Get rid of CDATA around RSM first element content
2025-11-17 23:23:44 -08:00 · 2025-09-29 15:11:55 +02:00 · 2025-09-29 15:06:16 +02:00 · 2025-09-29 15:06:16 +02:00 · 2025-09-29 14:52:48 +02:00 · 2025-09-29 14:01:44 +02:00
46 changed files with 2431 additions and 458 deletions
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -17,22 +17,22 @@ jobs:
  test:
    runs-on: ubuntu-latest
    steps:
-      - name: Set up Go 1.13
+      - name: Set up Go 1.25
        uses: actions/setup-go@v1
        with:
-          go-version: 1.13
+          go-version: 1.25
        id: go
      - uses: actions/checkout@v1
      - name: Run tests
        run: |
          go test ./... -v -race -coverprofile cover.out -covermode=atomic
      - name: Convert coverage to lcov
-        uses: jandelgado/gcov2lcov-action@v1.0.0
+        uses: jandelgado/gcov2lcov-action@v1
        with:
          infile: cover.out
          outfile: coverage.lcov
      - name: Coveralls
-        uses: coverallsapp/github-action@v1.0.1
+        uses: coverallsapp/github-action@v1
        with:
          github-token: ${{ secrets.github_token }}
          path-to-lcov: coverage.lcov
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Fluux XMPP Changelog

+## v0.5.0
+
+### Changes
+
+- Added support for XEP-0198 (Stream management)
+- Added message queue : when using "SendX" methods on a client, messages are also stored in a queue. When requesting
+acks from the server, sent messages will be discarded, and unsent ones will be sent again. (see https://xmpp.org/extensions/xep-0198.html#acking)
+- Added support for stanza_errors (see https://xmpp.org/rfcs/rfc3920.html#def C.2.  Stream error namespace and https://xmpp.org/rfcs/rfc6120.html#schemas-streamerror)
+- Added separate hooks for connection and reconnection on the client. One can now specify different actions to get triggered on client connect 
+and reconnect, at client init time.
+- Client state update is now thread safe
+- Changed the Config struct to use pointer semantics
+- Tests
+- Refactoring, including removing some Fprintf statements in favor of Marshal + Write and using structs from the library
+instead of strings
+
 ## v0.4.0

 ### Changes
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ The goal is to make simple to write simple XMPP clients and components:
 - For writing simple chatbot to control a service or a thing,
 - For writing XMPP servers components.

-The library is designed to have minimal dependencies. For now, the library does not depend on any other library.
+The library is designed to have minimal dependencies. Currently it requires at least Go 1.13.

 ## Configuration and connection

@@ -124,7 +124,7 @@ func main() {
 	router := xmpp.NewRouter()
 	router.HandleFunc("message", handleMessage)

-	client, err := xmpp.NewClient(config, router, errorHandler)
+	client, err := xmpp.NewClient(&config, router, errorHandler)
 	if err != nil {
 		log.Fatalf("%+v", err)
 	}
--- a/_examples/go.mod
+++ b/_examples/go.mod
@@ -1,6 +1,6 @@
 module gosrc.io/xmpp/_examples

-go 1.13
+go 1.25

 require (
 	github.com/processone/mpg123 v1.0.0
--- a/_examples/go.sum
+++ b/_examples/go.sum
@@ -53,10 +53,12 @@ github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20190908185732-236ed259b199/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
@@ -99,7 +101,9 @@ github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/9
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/processone/mpg123 v1.0.0 h1:o2WOyGZRM255or1Zc/LtF/jARn51B+9aQl72Qace0GA=
 github.com/processone/mpg123 v1.0.0/go.mod h1:X/FeL+h8vD1bYsG9tIWV3M2c4qNTZOficyvPVBP08go=
+github.com/processone/soundcloud v1.0.0 h1:/+i6+Yveb7Y6IFGDSkesYI+HddblzcRTQClazzVHxoE=
 github.com/processone/soundcloud v1.0.0/go.mod h1:kDLeWpkRtN3C8kIReQdxoiRi92P9xR6yW6qLOJnNWfY=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
@@ -155,6 +159,7 @@ golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190110200230-915654e7eabc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -186,6 +191,7 @@ golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522 h1:bhOzK9QyoD0ogCnFro1m2
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7 h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da/go.mod h1:NDW/Ps6MPRej6fsCIbMTohpP40sJ/P/vI1MoTEGwX90=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
@@ -209,3 +215,4 @@ honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWh
 mvdan.cc/sh v2.6.4+incompatible/go.mod h1:IeeQbZq+x2SUGBensq/jge5lLQbS3XT2ktyp3wrt4x8=
 nhooyr.io/websocket v1.6.5 h1:8TzpkldRfefda5JST+CnOH135bzVPz5uzfn/AF+gVKg=
 nhooyr.io/websocket v1.6.5/go.mod h1:F259lAzPRAH0htX2y3ehpJe09ih1aSHN7udWki1defY=
+nhooyr.io/websocket v1.8.17/go.mod h1:rN9OFWIUwuxg4fR5tELlYC04bXYowCP9GX47ivo2l+c=
--- a/_examples/xmpp_echo/xmpp_echo.go
+++ b/_examples/xmpp_echo/xmpp_echo.go
@@ -28,7 +28,7 @@ func main() {
 	router := xmpp.NewRouter()
 	router.HandleFunc("message", handleMessage)

-	client, err := xmpp.NewClient(config, router, errorHandler)
+	client, err := xmpp.NewClient(&config, router, errorHandler)
 	if err != nil {
 		log.Fatalf("%+v", err)
 	}
--- a/_examples/xmpp_jukebox/xmpp_jukebox.go
+++ b/_examples/xmpp_jukebox/xmpp_jukebox.go
@@ -54,7 +54,7 @@ func main() {
 			handleIQ(s, p, player)
 		})

-	client, err := xmpp.NewClient(config, router, errorHandler)
+	client, err := xmpp.NewClient(&config, router, errorHandler)
 	if err != nil {
 		log.Fatalf("%+v", err)
 	}
--- a/_examples/xmpp_oauth2/xmpp_oauth2.go
+++ b/_examples/xmpp_oauth2/xmpp_oauth2.go
@@ -28,7 +28,7 @@ func main() {
 	router := xmpp.NewRouter()
 	router.HandleFunc("message", handleMessage)

-	client, err := xmpp.NewClient(config, router, errorHandler)
+	client, err := xmpp.NewClient(&config, router, errorHandler)
 	if err != nil {
 		log.Fatalf("%+v", err)
 	}
--- a/_examples/xmpp_pubsub_client/xmpp_ps_client.go
+++ b/_examples/xmpp_pubsub_client/xmpp_ps_client.go
@@ -38,7 +38,7 @@ func main() {
 			log.Println("Received a message ! => \n" + string(data))
 		})

-	client, err := xmpp.NewClient(config, router, func(err error) { log.Println(err) })
+	client, err := xmpp.NewClient(&config, router, func(err error) { log.Println(err) })
 	if err != nil {
 		log.Fatalf("%+v", err)
 	}
--- a/_examples/xmpp_websocket/xmpp_websocket.go
+++ b/_examples/xmpp_websocket/xmpp_websocket.go
@@ -26,7 +26,7 @@ func main() {
 	router := xmpp.NewRouter()
 	router.HandleFunc("message", handleMessage)

-	client, err := xmpp.NewClient(config, router, errorHandler)
+	client, err := xmpp.NewClient(&config, router, errorHandler)
 	if err != nil {
 		log.Fatalf("%+v", err)
 	}
--- a/auth.go
+++ b/auth.go
@@ -60,10 +60,21 @@ func authPlain(socket io.ReadWriter, decoder *xml.Decoder, mech string, user str
 	raw := "\x00" + user + "\x00" + secret
 	enc := make([]byte, base64.StdEncoding.EncodedLen(len(raw)))
 	base64.StdEncoding.Encode(enc, []byte(raw))
-	_, err := fmt.Fprintf(socket, "<auth xmlns='%s' mechanism='%s'>%s</auth>", stanza.NSSASL, mech, enc)
+
+	a := stanza.SASLAuth{
+		Mechanism: mech,
+		Value:     string(enc),
+	}
+	data, err := xml.Marshal(a)
 	if err != nil {
 		return err
 	}
+	n, err := socket.Write(data)
+	if err != nil {
+		return err
+	} else if n == 0 {
+		return errors.New("failed to write authSASL nonza to socket : wrote 0 bytes")
+	}

 	// Next message should be either success or failure.
 	val, err := stanza.NextPacket(decoder)
--- a/client.go
+++ b/client.go
@@ -6,6 +6,7 @@ import (
 	"errors"
 	"io"
 	"net"
+	"sync"
 	"time"

 	"gosrc.io/xmpp/stanza"
@@ -14,24 +15,45 @@ import (
 //=============================================================================
 // EventManager

-// ConnState represents the current connection state.
+// SyncConnState represents the current connection state.
+type SyncConnState struct {
+	sync.RWMutex
+	// Current state of the client. Please use the dedicated getter and setter for this field as they are thread safe.
+	state ConnState
+}
 type ConnState = uint8

+// getState is a thread-safe getter for the current state
+func (scs *SyncConnState) getState() ConnState {
+	var res ConnState
+	scs.RLock()
+	res = scs.state
+	scs.RUnlock()
+	return res
+}
+
+// setState is a thread-safe setter for the current
+func (scs *SyncConnState) setState(cs ConnState) {
+	scs.Lock()
+	scs.state = cs
+	scs.Unlock()
+}
+
 // This is a the list of events happening on the connection that the
 // client can be notified about.
 const (
-	InitialPresence             = "<presence/>"
 	StateDisconnected ConnState = iota
-	StateConnected
+	StateResuming
 	StateSessionEstablished
 	StateStreamError
 	StatePermanentError
+	InitialPresence = "<presence/>"
 )

 // Event is a structure use to convey event changes related to client state. This
 // is for example used to notify the client when the client get disconnected.
 type Event struct {
-	State       ConnState
+	State       SyncConnState
 	Description string
 	StreamError string
 	SMState     SMState
@@ -44,7 +66,16 @@ type SMState struct {
 	Id string
 	// Inbound stanza count
 	Inbound uint
-	// TODO Store location for IP affinity
+
+	// IP affinity
+	preferredReconAddr string
+
+	// Error
+	StreamErrorGroup stanza.StanzaErrorGroup
+
+	// Track sent stanzas
+	*stanza.UnAckQueue
+
 	// TODO Store max and timestamp, to check if we should retry resumption or not
 }

@@ -53,29 +84,35 @@ type SMState struct {
 type EventHandler func(Event) error

 type EventManager struct {
-	// Store current state
-	CurrentState ConnState
+	// Store current state. Please use "getState" and "setState" to access and/or modify this.
+	CurrentState SyncConnState

 	// Callback used to propagate connection state changes
 	Handler EventHandler
 }

+// updateState changes the CurrentState in the event manager. The state read is threadsafe but there is no guarantee
+// regarding the triggered callback function.
 func (em *EventManager) updateState(state ConnState) {
-	em.CurrentState = state
+	em.CurrentState.setState(state)
 	if em.Handler != nil {
 		em.Handler(Event{State: em.CurrentState})
 	}
 }

+// disconnected changes the CurrentState in the event manager to "disconnected". The state read is threadsafe but there is no guarantee
+// regarding the triggered callback function.
 func (em *EventManager) disconnected(state SMState) {
-	em.CurrentState = StateDisconnected
+	em.CurrentState.setState(StateDisconnected)
 	if em.Handler != nil {
 		em.Handler(Event{State: em.CurrentState, SMState: state})
 	}
 }

+// streamError changes the CurrentState in the event manager to "streamError". The state read is threadsafe but there is no guarantee
+// regarding the triggered callback function.
 func (em *EventManager) streamError(error, desc string) {
-	em.CurrentState = StateStreamError
+	em.CurrentState.setState(StateStreamError)
 	if em.Handler != nil {
 		em.Handler(Event{State: em.CurrentState, StreamError: error, Description: desc})
 	}
@@ -90,7 +127,7 @@ var ErrCanOnlySendGetOrSetIq = errors.New("SendIQ can only send get and set IQ s
 // server.
 type Client struct {
 	// Store user defined options and states
-	config Config
+	config *Config
 	// Session gather data that can be accessed by users of this library
 	Session   *Session
 	transport Transport
@@ -100,6 +137,12 @@ type Client struct {
 	EventManager
 	// Handle errors from client execution
 	ErrorHandler func(error)
+
+	// Post connection hook. This will be executed on first connection
+	PostConnectHook func() error
+
+	// Post resume hook. This will be executed after the client resumes a lost connection using StreamManagement (XEP-0198)
+	PostResumeHook func() error
 }

 /*
@@ -107,9 +150,9 @@ Setting up the client / Checking the parameters
 */

 // NewClient generates a new XMPP client, based on Config passed as parameters.
-// If host is not specified, the DNS SRV should be used to find the host from the domainpart of the Jid.
+// If host is not specified, the DNS SRV should be used to find the host from the domain part of the Jid.
 // Default the port to 5222.
-func NewClient(config Config, r *Router, errorHandler func(error)) (c *Client, err error) {
+func NewClient(config *Config, r *Router, errorHandler func(error)) (c *Client, err error) {
 	if config.KeepaliveInterval == 0 {
 		config.KeepaliveInterval = time.Second * 30
 	}
@@ -169,26 +212,45 @@ func NewClient(config Config, r *Router, errorHandler func(error)) (c *Client, e
 	return
 }

-// Connect triggers actual TCP connection, based on previously defined parameters.
-// Connect simply triggers resumption, with an empty session state.
+// Connect establishes a first time connection to a XMPP server.
+// It calls the PostConnectHook
 func (c *Client) Connect() error {
-	var state SMState
-	return c.Resume(state)
+	err := c.connect()
+	if err != nil {
+		return err
+	}
+	// TODO: Do we always want to send initial presence automatically ?
+	// Do we need an option to avoid that or do we rely on client to send the presence itself ?
+	err = c.sendWithWriter(c.transport, []byte(InitialPresence))
+	// Execute the post first connection hook. Typically this holds "ask for roster" and this type of actions.
+	if c.PostConnectHook != nil {
+		err = c.PostConnectHook()
+		if err != nil {
+			return err
+		}
+	}
+
+	// Start the keepalive go routine
+	keepaliveQuit := make(chan struct{})
+	go keepalive(c.transport, c.config.KeepaliveInterval, keepaliveQuit)
+	// Start the receiver go routine
+	go c.recv(keepaliveQuit)
+	return err
 }

-// Resume attempts resuming  a Stream Managed session, based on the provided stream management
-// state.
-func (c *Client) Resume(state SMState) error {
+// connect establishes an actual TCP connection, based on previously defined parameters, as well as a XMPP session
+func (c *Client) connect() error {
+	var state SMState
 	var err error
-
+	// This is the TCP connection
 	streamId, err := c.transport.Connect()
 	if err != nil {
 		return err
 	}
-	c.updateState(StateConnected)

-	// Client is ok, we now open XMPP session
-	if c.Session, err = NewSession(c.transport, c.config, state); err != nil {
+	// Client is ok, we now open XMPP session with TLS negotiation if possible and session resume or binding
+	// depending on state.
+	if c.Session, err = NewSession(c, state); err != nil {
 		// Try to get the stream close tag from the server.
 		go func() {
 			for {
@@ -212,22 +274,26 @@ func (c *Client) Resume(state SMState) error {
 	c.Session.StreamId = streamId
 	c.updateState(StateSessionEstablished)

-	// Start the keepalive go routine
-	keepaliveQuit := make(chan struct{})
-	go keepalive(c.transport, c.config.KeepaliveInterval, keepaliveQuit)
-	// Start the receiver go routine
-	state = c.Session.SMState
-	go c.recv(state, keepaliveQuit)
-
-	// We're connected and can now receive and send messages.
-	//fmt.Fprintf(client.conn, "<presence xml:lang='en'><show>%s</show><status>%s</status></presence>", "chat", "Online")
-	// TODO: Do we always want to send initial presence automatically ?
-	// Do we need an option to avoid that or do we rely on client to send the presence itself ?
-	err = c.sendWithWriter(c.transport, []byte(InitialPresence))
-
 	return err
 }

+// Resume attempts resuming  a Stream Managed session, based on the provided stream management
+// state. See XEP-0198
+func (c *Client) Resume() error {
+	c.EventManager.updateState(StateResuming)
+	err := c.connect()
+	if err != nil {
+		return err
+	}
+	// Execute post reconnect hook. This can be different from the first connection hook, and not trigger roster retrieval
+	// for example.
+	if c.PostResumeHook != nil {
+		err = c.PostResumeHook()
+	}
+	return err
+}
+
+// Disconnect disconnects the client from the server, sending a stream close nonza and closing the TCP connection.
 func (c *Client) Disconnect() error {
 	if c.transport != nil {
 		return c.transport.Close()
@@ -252,6 +318,15 @@ func (c *Client) Send(packet stanza.Packet) error {
 		return errors.New("cannot marshal packet " + err.Error())
 	}

+	// Store stanza as non-acked as part of stream management
+	// See https://xmpp.org/extensions/xep-0198.html#scenarios
+	if c.config.StreamManagementEnable {
+		if _, ok := packet.(stanza.SMRequest); !ok {
+			toStore := stanza.UnAckedStz{Stz: string(data)}
+			c.Session.SMState.UnAckQueue.Push(&toStore)
+		}
+	}
+
 	return c.sendWithWriter(c.transport, data)
 }

@@ -284,6 +359,12 @@ func (c *Client) SendRaw(packet string) error {
 		return errors.New("client is not connected")
 	}

+	// Store stanza as non-acked as part of stream management
+	// See https://xmpp.org/extensions/xep-0198.html#scenarios
+	if c.config.StreamManagementEnable {
+		toStore := stanza.UnAckedStz{Stz: packet}
+		c.Session.SMState.UnAckQueue.Push(&toStore)
+	}
 	return c.sendWithWriter(c.transport, []byte(packet))
 }

@@ -297,13 +378,14 @@ func (c *Client) sendWithWriter(writer io.Writer, packet []byte) error {
 // Go routines

 // Loop: Receive data from server
-func (c *Client) recv(state SMState, keepaliveQuit chan<- struct{}) {
+func (c *Client) recv(keepaliveQuit chan<- struct{}) {
+	defer close(keepaliveQuit)
+
 	for {
 		val, err := stanza.NextPacket(c.transport.GetDecoder())
 		if err != nil {
 			c.ErrorHandler(err)
-			close(keepaliveQuit)
-			c.disconnected(state)
+			c.disconnected(c.Session.SMState)
 			return
 		}

@@ -311,7 +393,6 @@ func (c *Client) recv(state SMState, keepaliveQuit chan<- struct{}) {
 		switch packet := val.(type) {
 		case stanza.StreamError:
 			c.router.route(c, val)
-			close(keepaliveQuit)
 			c.streamError(packet.Error.Local, packet.Text)
 			c.ErrorHandler(errors.New("stream error: " + packet.Error.Local))
 			// We don't return here, because we want to wait for the stream close tag from the server, or timeout.
@@ -321,7 +402,7 @@ func (c *Client) recv(state SMState, keepaliveQuit chan<- struct{}) {
 			answer := stanza.SMAnswer{XMLName: xml.Name{
 				Space: stanza.NSStreamManagement,
 				Local: "a",
-			}, H: state.Inbound}
+			}, H: c.Session.SMState.Inbound}
 			err = c.Send(answer)
 			if err != nil {
 				c.ErrorHandler(err)
@@ -332,7 +413,7 @@ func (c *Client) recv(state SMState, keepaliveQuit chan<- struct{}) {
 			c.transport.ReceivedStreamClose()
 			return
 		default:
-			state.Inbound++
+			c.Session.SMState.Inbound++
 		}
 		// Do normal route processing in a go-routine so we can immediately
 		// start receiving other stanzas. This also allows route handlers to
--- a/client_internal_test.go
+++ b/client_internal_test.go
@@ -2,7 +2,16 @@ package xmpp

 import (
 	"bytes"
+	"encoding/xml"
+	"fmt"
+	"gosrc.io/xmpp/stanza"
+	"strconv"
 	"testing"
+	"time"
+)
+
+const (
+	streamManagementID = "test-stream_management-id"
 )

 func TestClient_Send(t *testing.T) {
@@ -17,3 +26,583 @@ func TestClient_Send(t *testing.T) {
 		t.Errorf("Incorrect value sent to buffer: '%s'", buffer.String())
 	}
 }
+
+// Stream management test.
+// Connection is established, then the server sends supported features and so on.
+// After the bind, client attempts a stream management enablement, and server replies in kind.
+func Test_StreamManagement(t *testing.T) {
+	serverDone := make(chan struct{})
+	clientDone := make(chan struct{})
+
+	client, mock := initSrvCliForResumeTests(t, func(t *testing.T, sc *ServerConn) {
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)       // Reset stream
+		sendFeaturesStreamManagment(t, sc) // Send post auth features
+		bind(t, sc)
+		enableStreamManagement(t, sc, false, true)
+		serverDone <- struct{}{}
+	}, testClientStreamManagement, true, true)
+	go func() {
+		var state SMState
+		var err error
+		// Client is ok, we now open XMPP session
+		if client.Session, err = NewSession(client, state); err != nil {
+			t.Fatalf("failed to open XMPP session: %s", err)
+		}
+		clientDone <- struct{}{}
+	}()
+
+	waitForEntity(t, clientDone)
+	waitForEntity(t, serverDone)
+	mock.Stop()
+}
+
+// Absence of stream management test.
+// Connection is established, then the server sends supported features and so on.
+// Client has stream management disabled in its config, and should not ask for it. Server is not set up to reply.
+func Test_NoStreamManagement(t *testing.T) {
+	serverDone := make(chan struct{})
+	clientDone := make(chan struct{})
+
+	// Setup Mock server
+	client, mock := initSrvCliForResumeTests(t, func(t *testing.T, sc *ServerConn) {
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)         // Reset stream
+		sendFeaturesNoStreamManagment(t, sc) // Send post auth features
+		bind(t, sc)
+		serverDone <- struct{}{}
+	}, testClientStreamManagement, true, false)
+
+	go func() {
+		var state SMState
+
+		// Client is ok, we now open XMPP session
+		var err error
+		if client.Session, err = NewSession(client, state); err != nil {
+			t.Fatalf("failed to open XMPP session: %s", err)
+		}
+		clientDone <- struct{}{}
+	}()
+
+	waitForEntity(t, clientDone)
+	waitForEntity(t, serverDone)
+
+	mock.Stop()
+}
+
+func Test_StreamManagementNotSupported(t *testing.T) {
+	serverDone := make(chan struct{})
+	clientDone := make(chan struct{})
+
+	client, mock := initSrvCliForResumeTests(t, func(t *testing.T, sc *ServerConn) {
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)         // Reset stream
+		sendFeaturesNoStreamManagment(t, sc) // Send post auth features
+		bind(t, sc)
+		serverDone <- struct{}{}
+	}, testClientStreamManagement, true, true)
+
+	go func() {
+		var state SMState
+		var err error
+		// Client is ok, we now open XMPP session
+		if client.Session, err = NewSession(client, state); err != nil {
+			t.Fatalf("failed to open XMPP session: %s", err)
+		}
+		clientDone <- struct{}{}
+	}()
+
+	// Wait for client
+	waitForEntity(t, clientDone)
+
+	// Check if client got a positive stream management response from the server
+	if client.Session.Features.DoesStreamManagement() {
+		t.Fatalf("server does not provide stream management")
+	}
+
+	// Wait for server
+	waitForEntity(t, serverDone)
+	mock.Stop()
+}
+
+func Test_StreamManagementNoResume(t *testing.T) {
+	serverDone := make(chan struct{})
+	clientDone := make(chan struct{})
+
+	client, mock := initSrvCliForResumeTests(t, func(t *testing.T, sc *ServerConn) {
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)       // Reset stream
+		sendFeaturesStreamManagment(t, sc) // Send post auth features
+		bind(t, sc)
+		enableStreamManagement(t, sc, false, false)
+		serverDone <- struct{}{}
+	}, testClientStreamManagement, true, true)
+
+	go func() {
+		var state SMState
+		var err error
+		// Client is ok, we now open XMPP session
+		if client.Session, err = NewSession(client, state); err != nil {
+			t.Fatalf("failed to open XMPP session: %s", err)
+		}
+		clientDone <- struct{}{}
+	}()
+	waitForEntity(t, clientDone)
+	if IsStreamResumable(client) {
+		t.Fatalf("server does not support resumption but client says stream is resumable")
+	}
+	waitForEntity(t, serverDone)
+	mock.Stop()
+}
+
+func Test_StreamManagementResume(t *testing.T) {
+	serverDone := make(chan struct{})
+	clientDone := make(chan struct{})
+	// Setup Mock server
+	mock := ServerMock{}
+	mock.Start(t, testXMPPAddress, func(t *testing.T, sc *ServerConn) {
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)       // Reset stream
+		sendFeaturesStreamManagment(t, sc) // Send post auth features
+		bind(t, sc)
+		enableStreamManagement(t, sc, false, true)
+		discardPresence(t, sc)
+		serverDone <- struct{}{}
+	})
+
+	// Test / Check result
+	config := Config{
+		TransportConfiguration: TransportConfiguration{
+			Address: testXMPPAddress,
+		},
+		Jid:                    "test@localhost",
+		Credential:             Password("test"),
+		Insecure:               true,
+		StreamManagementEnable: true,
+		streamManagementResume: true} // Enable stream management
+
+	var client *Client
+	router := NewRouter()
+	client, err := NewClient(&config, router, clientDefaultErrorHandler)
+	if err != nil {
+		t.Errorf("connect create XMPP client: %s", err)
+	}
+
+	// =================================================================
+	// Connect client, then disconnect it so we can resume the session
+	go func() {
+		err = client.Connect()
+		if err != nil {
+			t.Fatalf("could not connect client to mock server: %s", err)
+		}
+		clientDone <- struct{}{}
+	}()
+
+	waitForEntity(t, clientDone)
+
+	// ===========================================================================================
+	// Check that the client correctly went into "disconnected" state, after being disconnected
+	statusCorrectChan := make(chan struct{})
+	kill := make(chan struct{})
+
+	transp, ok := client.transport.(*XMPPTransport)
+	if !ok {
+		t.Fatalf("problem with client transport ")
+	}
+
+	transp.conn.Close()
+
+	waitForEntity(t, serverDone)
+	mock.Stop()
+
+	go checkClientResumeStatus(client, statusCorrectChan, kill)
+	select {
+	case <-statusCorrectChan:
+	//	Test passed
+	case <-time.After(5 * time.Second):
+		kill <- struct{}{}
+		t.Fatalf("Client is not in disconnected state while it should be. Timed out")
+	}
+
+	// Check if the client can have its connection resumed using its state but also its configuration
+	if !IsStreamResumable(client) {
+		t.Fatalf("should support resumption")
+	}
+
+	// Reboot server. We need to make a new one because (at least for now) the mock server can only have one handler
+	// and they should be different between a first connection and a stream resume since exchanged messages
+	// are different (See XEP-0198)
+	mock2 := ServerMock{}
+	mock2.Start(t, testXMPPAddress, func(t *testing.T, sc *ServerConn) {
+		//	Reconnect
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)       // Reset stream
+		sendFeaturesStreamManagment(t, sc) // Send post auth features
+		resumeStream(t, sc)
+		serverDone <- struct{}{}
+	})
+
+	// Reconnect
+	go func() {
+		err = client.Resume()
+		if err != nil {
+			t.Fatalf("could not connect client to mock server: %s", err)
+		}
+		clientDone <- struct{}{}
+	}()
+
+	waitForEntity(t, clientDone)
+	waitForEntity(t, serverDone)
+
+	mock2.Stop()
+}
+
+func Test_StreamManagementFail(t *testing.T) {
+	serverDone := make(chan struct{})
+	clientDone := make(chan struct{})
+	// Setup Mock server
+	mock := ServerMock{}
+	mock.Start(t, testXMPPAddress, func(t *testing.T, sc *ServerConn) {
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)       // Reset stream
+		sendFeaturesStreamManagment(t, sc) // Send post auth features
+		bind(t, sc)
+		enableStreamManagement(t, sc, true, true)
+		serverDone <- struct{}{}
+	})
+
+	// Test / Check result
+	config := Config{
+		TransportConfiguration: TransportConfiguration{
+			Address: testXMPPAddress,
+		},
+		Jid:                    "test@localhost",
+		Credential:             Password("test"),
+		Insecure:               true,
+		StreamManagementEnable: true,
+		streamManagementResume: true} // Enable stream management
+
+	var client *Client
+	router := NewRouter()
+	client, err := NewClient(&config, router, clientDefaultErrorHandler)
+	if err != nil {
+		t.Errorf("connect create XMPP client: %s", err)
+	}
+
+	var state SMState
+	go func() {
+		_, err = client.transport.Connect()
+		if err != nil {
+			return
+		}
+
+		// Client is ok, we now open XMPP session
+		if client.Session, err = NewSession(client, state); err == nil {
+			t.Fatalf("test is supposed to err")
+		}
+		if client.Session.SMState.StreamErrorGroup == nil {
+			t.Fatalf("error was not stored correctly in session state")
+		}
+		clientDone <- struct{}{}
+	}()
+
+	waitForEntity(t, serverDone)
+	waitForEntity(t, clientDone)
+
+	mock.Stop()
+}
+
+func Test_SendStanzaQueueWithSM(t *testing.T) {
+	serverDone := make(chan struct{})
+	clientDone := make(chan struct{})
+	// Setup Mock server
+	mock := ServerMock{}
+	mock.Start(t, testXMPPAddress, func(t *testing.T, sc *ServerConn) {
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)       // Reset stream
+		sendFeaturesStreamManagment(t, sc) // Send post auth features
+		bind(t, sc)
+		enableStreamManagement(t, sc, false, true)
+
+		// Ignore the initial presence sent to the server by the client so we can move on to the next packet.
+		discardPresence(t, sc)
+
+		// Used here to silently discard the IQ sent by the client, in order to later trigger a resend
+		skipPacket(t, sc)
+		// Respond to the client ACK request with a number of processed stanzas of 0. This should trigger a resend
+		// of previously ignored stanza to the server, which this handler element will be expecting.
+		respondWithAck(t, sc, 0)
+		serverDone <- struct{}{}
+	})
+
+	// Test / Check result
+	config := Config{
+		TransportConfiguration: TransportConfiguration{
+			Address: testXMPPAddress,
+		},
+		Jid:                    "test@localhost",
+		Credential:             Password("test"),
+		Insecure:               true,
+		StreamManagementEnable: true,
+		streamManagementResume: true} // Enable stream management
+
+	var client *Client
+	router := NewRouter()
+	client, err := NewClient(&config, router, clientDefaultErrorHandler)
+	if err != nil {
+		t.Errorf("connect create XMPP client: %s", err)
+	}
+
+	go func() {
+		err = client.Connect()
+
+		client.SendRaw(`<iq id='ls72g593' type='get'>
+  <query xmlns='jabber:iq:roster'/>
+</iq>
+`)
+
+		// Last stanza was discarded silently by the server. Let's ask an ack for it. This should trigger resend as the server
+		// will respond with an acknowledged number of stanzas of 0.
+		r := stanza.SMRequest{}
+		client.Send(r)
+		clientDone <- struct{}{}
+	}()
+	waitForEntity(t, serverDone)
+	waitForEntity(t, clientDone)
+
+	mock.Stop()
+}
+
+//========================================================================
+// Helper functions for tests
+
+func skipPacket(t *testing.T, sc *ServerConn) {
+	var p stanza.IQ
+	se, err := stanza.NextStart(sc.decoder)
+
+	if err != nil {
+		t.Fatalf("cannot read packet: %s", err)
+		return
+	}
+	if err := sc.decoder.DecodeElement(&p, &se); err != nil {
+		t.Fatalf("cannot decode packet: %s", err)
+		return
+	}
+}
+
+func respondWithAck(t *testing.T, sc *ServerConn, h int) {
+
+	//  Mock server reads the ack request
+	var p stanza.SMRequest
+	se, err := stanza.NextStart(sc.decoder)
+
+	if err != nil {
+		t.Fatalf("cannot read packet: %s", err)
+		return
+	}
+	if err := sc.decoder.DecodeElement(&p, &se); err != nil {
+		t.Fatalf("cannot decode packet: %s", err)
+		return
+	}
+
+	// Mock server sends the ack response
+	a := stanza.SMAnswer{
+		H: uint(h),
+	}
+	data, err := xml.Marshal(a)
+	_, err = sc.connection.Write(data)
+	if err != nil {
+		t.Fatalf("failed to send response ack")
+	}
+
+	// Mock server reads the re-sent stanza that was previously discarded intentionally
+	var p2 stanza.IQ
+	nse, err := stanza.NextStart(sc.decoder)
+
+	if err != nil {
+		t.Fatalf("cannot read packet: %s", err)
+		return
+	}
+	if err := sc.decoder.DecodeElement(&p2, &nse); err != nil {
+		t.Fatalf("cannot decode packet: %s", err)
+		return
+	}
+}
+
+func sendFeaturesStreamManagment(t *testing.T, sc *ServerConn) {
+	// This is a basic server, supporting only 2 features after auth: stream management & session binding
+	features := `<stream:features>
+  <bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'/>
+  <sm xmlns='urn:xmpp:sm:3'/>
+</stream:features>`
+	if _, err := fmt.Fprintln(sc.connection, features); err != nil {
+		t.Fatalf("cannot send stream feature: %s", err)
+	}
+}
+
+func sendFeaturesNoStreamManagment(t *testing.T, sc *ServerConn) {
+	// This is a basic server, supporting only 2 features after auth: stream management & session binding
+	features := `<stream:features>
+  <bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'/>
+</stream:features>`
+	if _, err := fmt.Fprintln(sc.connection, features); err != nil {
+		t.Fatalf("cannot send stream feature: %s", err)
+	}
+}
+
+// enableStreamManagement is a function for the mock server that can either mock a successful session, or fail depending on
+// the value of the "fail" boolean. True means the session should fail.
+func enableStreamManagement(t *testing.T, sc *ServerConn, fail bool, resume bool) {
+	// Decode element into pointer storage
+	var ed stanza.SMEnable
+	se, err := stanza.NextStart(sc.decoder)
+
+	if err != nil {
+		t.Fatalf("cannot read stream management enable: %s", err)
+		return
+	}
+	if err := sc.decoder.DecodeElement(&ed, &se); err != nil {
+		t.Fatalf("cannot decode stream management enable: %s", err)
+		return
+	}
+
+	if fail {
+		f := stanza.SMFailed{
+			H:                nil,
+			StreamErrorGroup: &stanza.UnexpectedRequest{},
+		}
+		data, err := xml.Marshal(f)
+		if err != nil {
+			t.Fatalf("failed to marshall error response: %s", err)
+		}
+		sc.connection.Write(data)
+	} else {
+		e := &stanza.SMEnabled{
+			Resume: strconv.FormatBool(resume),
+			Id:     streamManagementID,
+		}
+		data, err := xml.Marshal(e)
+		if err != nil {
+			t.Fatalf("failed to marshall error response: %s", err)
+		}
+		sc.connection.Write(data)
+	}
+}
+
+func resumeStream(t *testing.T, sc *ServerConn) {
+	h := uint(0)
+	response := stanza.SMResumed{
+		PrevId: streamManagementID,
+		H:      &h,
+	}
+
+	data, err := xml.Marshal(response)
+	if err != nil {
+		t.Fatalf("failed to marshall stream management enabled response : %s", err)
+	}
+
+	writtenChan := make(chan struct{})
+
+	go func() {
+		sc.connection.Write(data)
+		writtenChan <- struct{}{}
+	}()
+	select {
+	case <-writtenChan:
+		// We're done here
+		return
+	case <-time.After(defaultTimeout):
+		t.Fatalf("failed to write enabled nonza to client")
+	}
+}
+
+func checkClientResumeStatus(client *Client, statusCorrectChan chan struct{}, killChan chan struct{}) {
+	for {
+		if client.CurrentState.getState() == StateDisconnected {
+			statusCorrectChan <- struct{}{}
+		}
+		select {
+		case <-killChan:
+			return
+		case <-time.After(time.Millisecond * 10):
+			//	Keep checking status value
+		}
+	}
+}
+
+func initSrvCliForResumeTests(t *testing.T, serverHandler func(*testing.T, *ServerConn), port int, StreamManagementEnable, StreamManagementResume bool) (*Client, *ServerMock) {
+	mock := &ServerMock{}
+	testServerAddress := fmt.Sprintf("%s:%d", testClientDomain, port)
+
+	mock.Start(t, testServerAddress, serverHandler)
+	config := Config{
+		TransportConfiguration: TransportConfiguration{
+			Address: testServerAddress,
+		},
+		Jid:                    "test@localhost",
+		Credential:             Password("test"),
+		Insecure:               true,
+		StreamManagementEnable: StreamManagementEnable,
+		streamManagementResume: StreamManagementResume}
+
+	var client *Client
+	var err error
+	router := NewRouter()
+	if client, err = NewClient(&config, router, clientDefaultErrorHandler); err != nil {
+		t.Fatalf("connect create XMPP client: %s", err)
+	}
+
+	if _, err = client.transport.Connect(); err != nil {
+		t.Fatalf("XMPP connection failed: %s", err)
+	}
+
+	return client, mock
+}
+
+func waitForEntity(t *testing.T, entityDone chan struct{}) {
+	select {
+	case <-entityDone:
+	case <-time.After(defaultTimeout):
+		t.Fatalf("test timed out")
+	}
+}
--- a/client_test.go
+++ b/client_test.go
@@ -20,18 +20,20 @@ const (

 func TestEventManager(t *testing.T) {
 	mgr := EventManager{}
-	mgr.updateState(StateConnected)
-	if mgr.CurrentState != StateConnected {
+	mgr.updateState(StateResuming)
+	if mgr.CurrentState.getState() != StateResuming {
 		t.Fatal("CurrentState not updated by updateState()")
 	}

 	mgr.disconnected(SMState{})
-	if mgr.CurrentState != StateDisconnected {
+
+	if mgr.CurrentState.getState() != StateDisconnected {
 		t.Fatalf("CurrentState not reset by disconnected()")
 	}

 	mgr.streamError(ErrTLSNotSupported.Error(), "")
-	if mgr.CurrentState != StateStreamError {
+
+	if mgr.CurrentState.getState() != StateStreamError {
 		t.Fatalf("CurrentState not set by streamError()")
 	}
 }
@@ -53,7 +55,7 @@ func TestClient_Connect(t *testing.T) {
 	var client *Client
 	var err error
 	router := NewRouter()
-	if client, err = NewClient(config, router, clientDefaultErrorHandler); err != nil {
+	if client, err = NewClient(&config, router, clientDefaultErrorHandler); err != nil {
 		t.Errorf("connect create XMPP client: %s", err)
 	}

@@ -84,7 +86,7 @@ func TestClient_NoInsecure(t *testing.T) {
 	var client *Client
 	var err error
 	router := NewRouter()
-	if client, err = NewClient(config, router, clientDefaultErrorHandler); err != nil {
+	if client, err = NewClient(&config, router, clientDefaultErrorHandler); err != nil {
 		t.Errorf("cannot create XMPP client: %s", err)
 	}

@@ -117,7 +119,7 @@ func TestClient_FeaturesTracking(t *testing.T) {
 	var client *Client
 	var err error
 	router := NewRouter()
-	if client, err = NewClient(config, router, clientDefaultErrorHandler); err != nil {
+	if client, err = NewClient(&config, router, clientDefaultErrorHandler); err != nil {
 		t.Errorf("cannot create XMPP client: %s", err)
 	}

@@ -147,7 +149,7 @@ func TestClient_RFC3921Session(t *testing.T) {
 	var client *Client
 	var err error
 	router := NewRouter()
-	if client, err = NewClient(config, router, clientDefaultErrorHandler); err != nil {
+	if client, err = NewClient(&config, router, clientDefaultErrorHandler); err != nil {
 		t.Errorf("connect create XMPP client: %s", err)
 	}

@@ -187,7 +189,7 @@ func TestClient_SendIQ(t *testing.T) {
 	client.ErrorHandler = errorHandler
 	res, err := client.SendIQ(ctx, iqReq)
 	if err != nil {
-		t.Errorf(err.Error())
+		t.Error(err)
 	}

 	select {
@@ -366,7 +368,7 @@ func TestClient_DisconnectStreamManager(t *testing.T) {
 	var client *Client
 	var err error
 	router := NewRouter()
-	if client, err = NewClient(config, router, clientDefaultErrorHandler); err != nil {
+	if client, err = NewClient(&config, router, clientDefaultErrorHandler); err != nil {
 		t.Errorf("cannot create XMPP client: %s", err)
 	}

@@ -386,6 +388,162 @@ func TestClient_DisconnectStreamManager(t *testing.T) {
 	mock.Stop()
 }

+func Test_ClientPostConnectHook(t *testing.T) {
+	done := make(chan struct{})
+	// Handler for Mock server
+	h := func(t *testing.T, sc *ServerConn) {
+		handlerClientConnectSuccess(t, sc)
+		done <- struct{}{}
+	}
+
+	hookChan := make(chan struct{})
+	mock := &ServerMock{}
+	testServerAddress := fmt.Sprintf("%s:%d", testClientDomain, testClientPostConnectHook)
+
+	mock.Start(t, testServerAddress, h)
+	config := Config{
+		TransportConfiguration: TransportConfiguration{
+			Address: testServerAddress,
+		},
+		Jid:        "test@localhost",
+		Credential: Password("test"),
+		Insecure:   true}
+
+	var client *Client
+	var err error
+	router := NewRouter()
+	if client, err = NewClient(&config, router, clientDefaultErrorHandler); err != nil {
+		t.Errorf("connect create XMPP client: %s", err)
+	}
+
+	// The post connection client hook should just write to a channel that we will read later.
+	client.PostConnectHook = func() error {
+		go func() {
+			hookChan <- struct{}{}
+		}()
+		return nil
+	}
+	// Handle a possible error
+	errChan := make(chan error)
+	errorHandler := func(err error) {
+		errChan <- err
+	}
+	client.ErrorHandler = errorHandler
+	if err = client.Connect(); err != nil {
+		t.Errorf("XMPP connection failed: %s", err)
+	}
+
+	// Check if the post connection client hook was correctly called
+	select {
+	case err := <-errChan: // If the server sends an error, or there is a connection error
+		t.Fatal(err.Error())
+	case <-time.After(defaultChannelTimeout): // If we timeout
+		t.Fatal("Failed to call post connection client hook")
+	case <-hookChan:
+		// Test succeeded, channel was written to.
+	}
+
+	select {
+	case <-done:
+		mock.Stop()
+	case <-time.After(defaultChannelTimeout):
+		t.Fatal("The mock server failed to finish its job !")
+	}
+}
+
+func Test_ClientPostReconnectHook(t *testing.T) {
+	hookChan := make(chan struct{})
+	// Setup Mock server
+	mock := ServerMock{}
+	mock.Start(t, testXMPPAddress, func(t *testing.T, sc *ServerConn) {
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)       // Reset stream
+		sendFeaturesStreamManagment(t, sc) // Send post auth features
+		bind(t, sc)
+		enableStreamManagement(t, sc, false, true)
+	})
+
+	// Test / Check result
+	config := Config{
+		TransportConfiguration: TransportConfiguration{
+			Address: testXMPPAddress,
+		},
+		Jid:                    "test@localhost",
+		Credential:             Password("test"),
+		Insecure:               true,
+		StreamManagementEnable: true,
+		streamManagementResume: true} // Enable stream management
+
+	var client *Client
+	router := NewRouter()
+	client, err := NewClient(&config, router, clientDefaultErrorHandler)
+	if err != nil {
+		t.Errorf("connect create XMPP client: %s", err)
+	}
+
+	client.PostResumeHook = func() error {
+		go func() {
+			hookChan <- struct{}{}
+		}()
+		return nil
+	}
+
+	err = client.Connect()
+	if err != nil {
+		t.Fatalf("could not connect client to mock server: %s", err)
+	}
+
+	transp, ok := client.transport.(*XMPPTransport)
+	if !ok {
+		t.Fatalf("problem with client transport ")
+	}
+
+	transp.conn.Close()
+	mock.Stop()
+
+	// Check if the client can have its connection resumed using its state but also its configuration
+	if !IsStreamResumable(client) {
+		t.Fatalf("should support resumption")
+	}
+
+	// Reboot server. We need to make a new one because (at least for now) the mock server can only have one handler
+	// and they should be different between a first connection and a stream resume since exchanged messages
+	// are different (See XEP-0198)
+	mock2 := ServerMock{}
+	mock2.Start(t, testXMPPAddress, func(t *testing.T, sc *ServerConn) {
+		//	Reconnect
+		checkClientOpenStream(t, sc)
+
+		sendStreamFeatures(t, sc) // Send initial features
+		readAuth(t, sc.decoder)
+		sc.connection.Write([]byte("<success xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\"/>"))
+
+		checkClientOpenStream(t, sc)       // Reset stream
+		sendFeaturesStreamManagment(t, sc) // Send post auth features
+		resumeStream(t, sc)
+	})
+
+	// Reconnect
+	err = client.Resume()
+	if err != nil {
+		t.Fatalf("could not connect client to mock server: %s", err)
+	}
+
+	select {
+	case <-time.After(defaultChannelTimeout): // If we timeout
+		t.Fatal("Failed to call post connection client hook")
+	case <-hookChan:
+		// Test succeeded, channel was written to.
+	}
+
+	mock2.Stop()
+}
+
 //=============================================================================
 // Basic XMPP Server Mock Handlers.

@@ -449,7 +607,7 @@ func checkClientOpenStream(t *testing.T, sc *ServerConn) {
 		var token xml.Token
 		token, err := sc.decoder.Token()
 		if err != nil {
-			t.Errorf("cannot read next token: %s", err)
+			t.Fatalf("cannot read next token: %s", err)
 		}

 		switch elem := token.(type) {
@@ -464,6 +622,7 @@ func checkClientOpenStream(t *testing.T, sc *ServerConn) {
 			}
 			return
 		}
+
 	}
 }

@@ -472,7 +631,6 @@ func mockClientConnection(t *testing.T, serverHandler func(*testing.T, *ServerCo
 	testServerAddress := fmt.Sprintf("%s:%d", testClientDomain, port)

 	mock.Start(t, testServerAddress, serverHandler)
-
 	config := Config{
 		TransportConfiguration: TransportConfiguration{
 			Address: testServerAddress,
@@ -484,7 +642,7 @@ func mockClientConnection(t *testing.T, serverHandler func(*testing.T, *ServerCo
 	var client *Client
 	var err error
 	router := NewRouter()
-	if client, err = NewClient(config, router, clientDefaultErrorHandler); err != nil {
+	if client, err = NewClient(&config, router, clientDefaultErrorHandler); err != nil {
 		t.Errorf("connect create XMPP client: %s", err)
 	}

--- a/cmd/fluuxmpp/send.go
+++ b/cmd/fluuxmpp/send.go
@@ -32,7 +32,7 @@ func sendxmpp(cmd *cobra.Command, args []string) {
 	msgText := args[1]

 	var err error
-	client, err := xmpp.NewClient(xmpp.Config{
+	client, err := xmpp.NewClient(&xmpp.Config{
 		TransportConfiguration: xmpp.TransportConfiguration{
 			Address: viper.GetString("addr"),
 		},
--- a/cmd/go.mod
+++ b/cmd/go.mod
@@ -1,6 +1,6 @@
 module gosrc.io/xmpp/cmd

-go 1.13
+go 1.25

 require (
 	github.com/bdlm/log v0.1.19
--- a/cmd/go.sum
+++ b/cmd/go.sum
@@ -63,9 +63,12 @@ github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5a
 github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20190908185732-236ed259b199/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
+github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
@@ -92,6 +95,7 @@ github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/magiconair/properties v1.8.0 h1:LLgXmsheXeRoUOBOjtwPQCWIYqM/LU1ayDtDePerRcY=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
+github.com/magiconair/properties v1.8.1 h1:ZC2Vc7/ZFkGmsVC9KvOjumD+G5lXy2RtTKyzRKO2BQ4=
 github.com/magiconair/properties v1.8.1/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/mailru/easyjson v0.0.0-20190403194419-1ea4449da983/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
@@ -148,10 +152,12 @@ github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb6
 github.com/spf13/pflag v1.0.1/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
 github.com/spf13/viper v1.4.0 h1:yXHLWeravcrgGyFSyCgdYpXQ9dR9c/WED3pg1RhxqEU=
 github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/yZzE=
+github.com/spf13/viper v1.6.1 h1:VPZzIkznI1YhVMRi6vNFLHSwhnhReBfgTxIPccpfdZk=
 github.com/spf13/viper v1.6.1/go.mod h1:t3iDnF5Jlj76alVNuyFBk5oUMCvsrkbvZK0WQdfDi5k=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -159,6 +165,7 @@ github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/subosito/gotenv v1.2.0 h1:Slr1R9HxAlEKefgq5jn9U+DnETlIUa6HfgEzj0g5d7s=
 github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/twitchyliquid64/golang-asm v0.0.0-20190126203739-365674df15fc/go.mod h1:NoCfSFWosfqMqmmD7hApkirIK9ozpHjxRnRxs1l413A=
@@ -207,6 +214,7 @@ golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190618155005-516e3c20635f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190712062909-fae7ac547cb7/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190927073244-c990c680b611 h1:q9u40nxWT5zRClI/uU9dHCiYGottAg6Nzz4YUQyHxdA=
 golang.org/x/sys v0.0.0-20190927073244-c990c680b611/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -220,6 +228,7 @@ golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522 h1:bhOzK9QyoD0ogCnFro1m2
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7 h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da/go.mod h1:NDW/Ps6MPRej6fsCIbMTohpP40sJ/P/vI1MoTEGwX90=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
@@ -231,6 +240,7 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
+gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
@@ -238,9 +248,12 @@ gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bl
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gotest.tools v2.1.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 gotest.tools/gotestsum v0.3.5/go.mod h1:Mnf3e5FUzXbkCfynWBGOwLssY7gTQgCHObK9tMpAriY=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 mvdan.cc/sh v2.6.4+incompatible/go.mod h1:IeeQbZq+x2SUGBensq/jge5lLQbS3XT2ktyp3wrt4x8=
+nhooyr.io/websocket v1.6.5 h1:8TzpkldRfefda5JST+CnOH135bzVPz5uzfn/AF+gVKg=
 nhooyr.io/websocket v1.6.5/go.mod h1:F259lAzPRAH0htX2y3ehpJe09ih1aSHN7udWki1defY=
+nhooyr.io/websocket v1.8.17/go.mod h1:rN9OFWIUwuxg4fR5tELlYC04bXYowCP9GX47ivo2l+c=
--- a/component.go
+++ b/component.go
@@ -60,11 +60,10 @@ func NewComponent(opts ComponentOptions, r *Router, errorHandler func(error)) (*
 // Connect triggers component connection to XMPP server component port.
 // TODO: Failed handshake should be a permanent error
 func (c *Component) Connect() error {
-	var state SMState
-	return c.Resume(state)
+	return c.Resume()
 }

-func (c *Component) Resume(sm SMState) error {
+func (c *Component) Resume() error {
 	var err error
 	var streamId string
 	if c.ComponentOptions.TransportConfiguration.Domain == "" {
@@ -73,16 +72,13 @@ func (c *Component) Resume(sm SMState) error {
 	c.transport, err = NewComponentTransport(c.ComponentOptions.TransportConfiguration)
 	if err != nil {
 		c.updateState(StatePermanentError)
-
 		return NewConnError(err, true)
 	}

 	if streamId, err = c.transport.Connect(); err != nil {
 		c.updateState(StatePermanentError)
-
 		return NewConnError(err, true)
 	}
-	c.updateState(StateConnected)

 	// Authentication
 	if err := c.sendWithWriter(c.transport, []byte(fmt.Sprintf("<handshake>%s</handshake>", c.handshake(streamId)))); err != nil {
--- a/component_test.go
+++ b/component_test.go
@@ -38,6 +38,8 @@ func TestHandshake(t *testing.T) {
 // Tests connection process with a handshake exchange
 // Tests multiple session IDs. All serverConnections should generate a unique stream ID
 func TestGenerateHandshakeId(t *testing.T) {
+	clientDone := make(chan struct{})
+	serverDone := make(chan struct{})
 	// Using this array with a channel to make a queue of values to test
 	// These are stream IDs that will be used to test the connection process, mixing them with the "secret" to generate
 	// some handshake value
@@ -57,11 +59,10 @@ func TestGenerateHandshakeId(t *testing.T) {
 	// Performs a Component connection with a handshake. It expects to have an ID sent its way through the "uchan"
 	// channel of this file. Otherwise it will hang for ever.
 	h := func(t *testing.T, sc *ServerConn) {
-
 		checkOpenStreamHandshakeID(t, sc, <-uchan)
 		readHandshakeComponent(t, sc.decoder)
 		sc.connection.Write([]byte("<handshake/>")) // That's all the server needs to return (see xep-0114)
-		return
+		serverDone <- struct{}{}
 	}

 	// Init mock server
@@ -92,14 +93,45 @@ func TestGenerateHandshakeId(t *testing.T) {
 	}

 	// Try connecting, and storing the resulting streamID in a map.
-	m := make(map[string]bool)
-	for range uuidsArray {
-		streamId, _ := c.transport.Connect()
-		m[c.handshake(streamId)] = true
-	}
-	if len(uuidsArray) != len(m) {
-		t.Errorf("Handshake does not produce a unique id. Expected: %d unique ids, got: %d", len(uuidsArray), len(m))
-	}
+	go func() {
+		m := make(map[string]bool)
+		for range uuidsArray {
+			idChan := make(chan string)
+			go func() {
+				streamId, err := c.transport.Connect()
+				if err != nil {
+					t.Fatalf("failed to mock component connection to get a handshake: %s", err)
+				}
+				idChan <- streamId
+			}()
+
+			var streamId string
+			select {
+			case streamId = <-idChan:
+			case <-time.After(defaultTimeout):
+				t.Fatalf("test timed out")
+			}
+
+			hs := stanza.Handshake{
+				Value: c.handshake(streamId),
+			}
+			m[hs.Value] = true
+			hsRaw, err := xml.Marshal(hs)
+			if err != nil {
+				t.Fatalf("could not marshal handshake: %s", err)
+			}
+			c.SendRaw(string(hsRaw))
+			waitForEntity(t, serverDone)
+			c.transport.Close()
+		}
+		if len(uuidsArray) != len(m) {
+			t.Errorf("Handshake does not produce a unique id. Expected: %d unique ids, got: %d", len(uuidsArray), len(m))
+		}
+		clientDone <- struct{}{}
+	}()
+
+	waitForEntity(t, clientDone)
+	mock.Stop()
 }

 // Test that NewStreamManager can accept a Component.
@@ -121,10 +153,11 @@ func TestDecoder(t *testing.T) {

 // Tests sending an IQ to the server, and getting the response
 func TestSendIq(t *testing.T) {
-	done := make(chan struct{})
+	serverDone := make(chan struct{})
+	clientDone := make(chan struct{})
 	h := func(t *testing.T, sc *ServerConn) {
 		handlerForComponentIQSend(t, sc)
-		done <- struct{}{}
+		serverDone <- struct{}{}
 	}

 	//Connecting to a mock server, initialized with given port and handler function
@@ -145,24 +178,23 @@ func TestSendIq(t *testing.T) {
 	}
 	c.ErrorHandler = errorHandler

-	var res chan stanza.IQ
-	res, _ = c.SendIQ(ctx, iqReq)
+	go func() {
+		var res chan stanza.IQ
+		res, _ = c.SendIQ(ctx, iqReq)

-	select {
-	case <-res:
-	case err := <-errChan:
-		t.Errorf(err.Error())
-	case <-time.After(defaultChannelTimeout):
-		t.Errorf("Failed to receive response, to sent IQ, from mock server")
-	}
+		select {
+		case <-res:
+		case err := <-errChan:
+			t.Fatal(err)
+		}
+		clientDone <- struct{}{}
+	}()
+
+	waitForEntity(t, clientDone)
+	waitForEntity(t, serverDone)

-	select {
-	case <-done:
-		m.Stop()
-	case <-time.After(defaultChannelTimeout):
-		t.Errorf("The mock server failed to finish its job !")
-	}
 	cancel()
+	m.Stop()
 }

 // Checking that error handling is done properly client side when an invalid IQ is sent and the server responds in kind.
@@ -335,7 +367,7 @@ func TestStreamManagerDisconnect(t *testing.T) {
 //=============================================================================
 // Basic XMPP Server Mock Handlers.

-//===============================
+// ===============================
 // Init mock server and connection
 // Creating a mock server and connecting a Component to it. Initialized with given port and handler function
 // The Component and mock are both returned
--- a/config.go
+++ b/config.go
@@ -21,4 +21,15 @@ type Config struct {
 	// Insecure can be set to true to allow to open a session without TLS. If TLS
 	// is supported on the server, we will still try to use it.
 	Insecure bool
+
+	// Activate stream management process during session
+	StreamManagementEnable bool
+	// Enable stream management resume capability
+	streamManagementResume bool
+}
+
+// IsStreamResumable tells if a stream session is resumable by reading the "config" part of a client.
+// It checks if stream management is enabled, and if stream resumption was set and accepted by the server.
+func IsStreamResumable(c *Client) bool {
+	return c.config.StreamManagementEnable && c.config.streamManagementResume
 }
--- a/go.mod
+++ b/go.mod
@@ -1,10 +1,10 @@
 module gosrc.io/xmpp

-go 1.13
+go 1.25

 require (
-	github.com/google/go-cmp v0.3.1
-	github.com/google/uuid v1.1.1
-	golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7
-	nhooyr.io/websocket v1.6.5
+	github.com/google/go-cmp v0.7.0
+	github.com/google/uuid v1.6.0
+	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da
+	nhooyr.io/websocket v1.8.17
 )
--- a/go.sum
+++ b/go.sum
@@ -1,210 +1,8 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da h1:noIWHXmPHxILtqtCOPIhSt0ABwskkZKjD3bXGnZGpNY=
+golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da/go.mod h1:NDW/Ps6MPRej6fsCIbMTohpP40sJ/P/vI1MoTEGwX90=
+nhooyr.io/websocket v1.8.17 h1:KEVeLJkUywCKVsnLIDlD/5gtayKp8VoCkksHCGGfT9Y=
+nhooyr.io/websocket v1.8.17/go.mod h1:rN9OFWIUwuxg4fR5tELlYC04bXYowCP9GX47ivo2l+c=
--- a/router.go
+++ b/router.go
@@ -42,6 +42,17 @@ func NewRouter() *Router {
 // route is called by the XMPP client to dispatch stanza received using the set up routes.
 // It is also used by test, but is not supposed to be used directly by users of the library.
 func (r *Router) route(s Sender, p stanza.Packet) {
+	a, isA := p.(stanza.SMAnswer)
+	if isA {
+		switch tt := s.(type) {
+		case *Client:
+			lastAcked := a.H
+			SendMissingStz(int(lastAcked), s, tt.Session.SMState.UnAckQueue)
+		case *Component:
+		// TODO
+		default:
+		}
+	}
 	iq, isIq := p.(*stanza.IQ)
 	if isIq {
 		r.IQResultRouteLock.RLock()
@@ -70,6 +81,33 @@ func (r *Router) route(s Sender, p stanza.Packet) {
 	}
 }

+// SendMissingStz sends all stanzas that did not reach the server, according to the response to an ack request (see XEP-0198, acks)
+func SendMissingStz(lastSent int, s Sender, uaq *stanza.UnAckQueue) error {
+	uaq.RWMutex.Lock()
+	if len(uaq.Uslice) <= 0 {
+		uaq.RWMutex.Unlock()
+		return nil
+	}
+	last := uaq.Uslice[len(uaq.Uslice)-1]
+	if last.Id > lastSent {
+		// Remove sent stanzas from the queue
+		uaq.PopN(lastSent - last.Id)
+		// Re-send non acknowledged stanzas
+		for _, elt := range uaq.PopN(len(uaq.Uslice)) {
+			eltStz := elt.(*stanza.UnAckedStz)
+			err := s.SendRaw(eltStz.Stz)
+			if err != nil {
+				return err
+			}
+
+		}
+		// Ask for updates on stanzas we just sent to the entity. Not sure I should leave this. Maybe let users call ack again by themselves ?
+		s.Send(stanza.SMRequest{})
+	}
+	uaq.RWMutex.Unlock()
+	return nil
+}
+
 func iqNotImplemented(s Sender, iq *stanza.IQ) {
 	err := stanza.Err{
 		XMLName: xml.Name{Local: "error"},
--- a/session.go
+++ b/session.go
@@ -1,10 +1,11 @@
 package xmpp

 import (
+	"encoding/xml"
 	"errors"
 	"fmt"
-
 	"gosrc.io/xmpp/stanza"
+	"strconv"
 )

 type Session struct {
@@ -23,44 +24,67 @@ type Session struct {
 	err error
 }

-func NewSession(transport Transport, o Config, state SMState) (*Session, error) {
-	s := new(Session)
-	s.transport = transport
-	s.SMState = state
-	s.init(o)
+func NewSession(c *Client, state SMState) (*Session, error) {
+	var s *Session
+	if c.Session == nil {
+		s = new(Session)
+		s.transport = c.transport
+		s.SMState = state
+		s.init()
+	} else {
+		s = c.Session
+		// We keep information about the previously set session, like the session ID, but we read server provided
+		// info again in case it changed between session break and resume, such as features.
+		s.init()
+	}

 	if s.err != nil {
 		return nil, NewConnError(s.err, true)
 	}

-	if !transport.IsSecure() {
-		s.startTlsIfSupported(o)
+	if !c.transport.IsSecure() {
+		s.startTlsIfSupported(c.config)
 	}

-	if !transport.IsSecure() && !o.Insecure {
+	if !c.transport.IsSecure() && !c.config.Insecure {
 		err := fmt.Errorf("failed to negotiate TLS session : %s", s.err)
 		return nil, NewConnError(err, true)
 	}

 	if s.TlsEnabled {
-		s.reset(o)
+		s.reset()
 	}

 	// auth
-	s.auth(o)
-	s.reset(o)
+	s.auth(c.config)
+	if s.err != nil {
+		return s, s.err
+	}
+	s.reset()
+	if s.err != nil {
+		return s, s.err
+	}

 	// attempt resumption
-	if s.resume(o) {
+	if s.resume(c.config) {
 		return s, s.err
 	}

 	// otherwise, bind resource and 'start' XMPP session
-	s.bind(o)
-	s.rfc3921Session(o)
+	s.bind(c.config)
+	if s.err != nil {
+		return s, s.err
+	}
+	s.rfc3921Session()
+	if s.err != nil {
+		return s, s.err
+	}

 	// Enable stream management if supported
-	s.EnableStreamManagement(o)
+	s.EnableStreamManagement(c.config)
+	if s.err != nil {
+		return s, s.err
+	}

 	return s, s.err
 }
@@ -70,19 +94,20 @@ func (s *Session) PacketId() string {
 	return fmt.Sprintf("%x", s.lastPacketId)
 }

-func (s *Session) init(o Config) {
-	s.Features = s.open(o.parsedJid.Domain)
+// init gathers information on the session such as stream features from the server.
+func (s *Session) init() {
+	s.Features = s.extractStreamFeatures()
 }

-func (s *Session) reset(o Config) {
+func (s *Session) reset() {
 	if s.StreamId, s.err = s.transport.StartStream(); s.err != nil {
 		return
 	}

-	s.Features = s.open(o.parsedJid.Domain)
+	s.Features = s.extractStreamFeatures()
 }

-func (s *Session) open(domain string) (f stanza.StreamFeatures) {
+func (s *Session) extractStreamFeatures() (f stanza.StreamFeatures) {
 	// extract stream features
 	if s.err = s.transport.GetDecoder().Decode(&f); s.err != nil {
 		s.err = errors.New("stream open decode features: " + s.err.Error())
@@ -90,7 +115,7 @@ func (s *Session) open(domain string) (f stanza.StreamFeatures) {
 	return
 }

-func (s *Session) startTlsIfSupported(o Config) {
+func (s *Session) startTlsIfSupported(o *Config) {
 	if s.err != nil {
 		return
 	}
@@ -125,7 +150,7 @@ func (s *Session) startTlsIfSupported(o Config) {
 	}
 }

-func (s *Session) auth(o Config) {
+func (s *Session) auth(o *Config) {
 	if s.err != nil {
 		return
 	}
@@ -134,7 +159,7 @@ func (s *Session) auth(o Config) {
 }

 // Attempt to resume session using stream management
-func (s *Session) resume(o Config) bool {
+func (s *Session) resume(o *Config) bool {
 	if !s.Features.DoesStreamManagement() {
 		return false
 	}
@@ -142,9 +167,16 @@ func (s *Session) resume(o Config) bool {
 		return false
 	}

-	fmt.Fprintf(s.transport, "<resume xmlns='%s' h='%d' previd='%s'/>",
-		stanza.NSStreamManagement, s.SMState.Inbound, s.SMState.Id)
+	rsm := stanza.SMResume{
+		PrevId: s.SMState.Id,
+		H:      &s.SMState.Inbound,
+	}
+	data, err := xml.Marshal(rsm)

+	_, err = s.transport.Write(data)
+	if err != nil {
+		return false
+	}
 	var packet stanza.Packet
 	packet, s.err = stanza.NextPacket(s.transport.GetDecoder())
 	if s.err == nil {
@@ -165,20 +197,48 @@ func (s *Session) resume(o Config) bool {
 	return false
 }

-func (s *Session) bind(o Config) {
+func (s *Session) bind(o *Config) {
 	if s.err != nil {
 		return
 	}

 	// Send IQ message asking to bind to the local user name.
 	var resource = o.parsedJid.Resource
-	if resource != "" {
-		fmt.Fprintf(s.transport, "<iq type='set' id='%s'><bind xmlns='%s'><resource>%s</resource></bind></iq>",
-			s.PacketId(), stanza.NSBind, resource)
-	} else {
-		fmt.Fprintf(s.transport, "<iq type='set' id='%s'><bind xmlns='%s'/></iq>", s.PacketId(), stanza.NSBind)
+	iqB, err := stanza.NewIQ(stanza.Attrs{
+		Type: stanza.IQTypeSet,
+		Id:   s.PacketId(),
+	})
+	if err != nil {
+		s.err = err
+		return
 	}

+	// Check if we already have a resource name, and include it in the request if so
+	if resource != "" {
+		iqB.Payload = &stanza.Bind{
+			Resource: resource,
+		}
+	} else {
+		iqB.Payload = &stanza.Bind{}
+
+	}
+
+	// Send the bind request IQ
+	data, err := xml.Marshal(iqB)
+	if err != nil {
+		s.err = err
+		return
+	}
+	n, err := s.transport.Write(data)
+	if err != nil {
+		s.err = err
+		return
+	} else if n == 0 {
+		s.err = errors.New("failed to write bind iq stanza to the server : wrote 0 bytes")
+		return
+	}
+
+	// Check the server response
 	var iq stanza.IQ
 	if s.err = s.transport.GetDecoder().Decode(&iq); s.err != nil {
 		s.err = errors.New("error decoding iq bind result: " + s.err.Error())
@@ -197,7 +257,7 @@ func (s *Session) bind(o Config) {
 }

 // After the bind, if the session is not optional (as per old RFC 3921), we send the session open iq.
-func (s *Session) rfc3921Session(o Config) {
+func (s *Session) rfc3921Session() {
 	if s.err != nil {
 		return
 	}
@@ -205,7 +265,29 @@ func (s *Session) rfc3921Session(o Config) {
 	var iq stanza.IQ
 	// We only negotiate session binding if it is mandatory, we skip it when optional.
 	if !s.Features.Session.IsOptional() {
-		fmt.Fprintf(s.transport, "<iq type='set' id='%s'><session xmlns='%s'/></iq>", s.PacketId(), stanza.NSSession)
+		se, err := stanza.NewIQ(stanza.Attrs{
+			Type: stanza.IQTypeSet,
+			Id:   s.PacketId(),
+		})
+		if err != nil {
+			s.err = err
+			return
+		}
+		se.Payload = &stanza.StreamSession{}
+		data, err := xml.Marshal(se)
+		if err != nil {
+			s.err = err
+			return
+		}
+		n, err := s.transport.Write(data)
+		if err != nil {
+			s.err = err
+			return
+		} else if n == 0 {
+			s.err = errors.New("there was a problem marshaling the session IQ : wrote 0 bytes to server")
+			return
+		}
+
 		if s.err = s.transport.GetDecoder().Decode(&iq); s.err != nil {
 			s.err = errors.New("expecting iq result after session open: " + s.err.Error())
 			return
@@ -214,28 +296,47 @@ func (s *Session) rfc3921Session(o Config) {
 }

 // Enable stream management, with session resumption, if supported.
-func (s *Session) EnableStreamManagement(o Config) {
+func (s *Session) EnableStreamManagement(o *Config) {
 	if s.err != nil {
 		return
 	}
-	if !s.Features.DoesStreamManagement() {
+	if !s.Features.DoesStreamManagement() || !o.StreamManagementEnable {
+		return
+	}
+	q := stanza.NewUnAckQueue()
+	ebleNonza := stanza.SMEnable{Resume: &o.streamManagementResume}
+	pktStr, err := xml.Marshal(ebleNonza)
+	if err != nil {
+		s.err = err
+		return
+	}
+	_, err = s.transport.Write(pktStr)
+	if err != nil {
+		s.err = err
 		return
 	}
-
-	fmt.Fprintf(s.transport, "<enable xmlns='%s' resume='true'/>", stanza.NSStreamManagement)

 	var packet stanza.Packet
 	packet, s.err = stanza.NextPacket(s.transport.GetDecoder())
 	if s.err == nil {
 		switch p := packet.(type) {
 		case stanza.SMEnabled:
-			s.SMState = SMState{Id: p.Id}
+			// Server allows resumption or not using SMEnabled attribute "resume". We must read the server response
+			// and update config accordingly
+			b, err := strconv.ParseBool(p.Resume)
+			if err != nil || !b {
+				o.StreamManagementEnable = false
+			}
+			s.SMState = SMState{Id: p.Id, preferredReconAddr: p.Location}
+			s.SMState.UnAckQueue = q
 		case stanza.SMFailed:
 			// TODO: Store error in SMState, for later inspection
+			s.SMState = SMState{StreamErrorGroup: p.StreamErrorGroup}
+			s.SMState.UnAckQueue = q
+			s.err = errors.New("failed to establish session : " + s.SMState.StreamErrorGroup.GroupErrorName())
 		default:
 			s.err = errors.New("unexpected reply to SM enable")
 		}
 	}
-
 	return
 }
--- a/stanza/commands.go
+++ b/stanza/commands.go
@@ -23,7 +23,7 @@ const (
 type Command struct {
 	XMLName xml.Name `xml:"http://jabber.org/protocol/commands command"`

-	CommandElement CommandElement
+	CommandElements []CommandElement

 	BadAction       *struct{} `xml:"bad-action,omitempty"`
 	BadLocale       *struct{} `xml:"bad-locale,omitempty"`
@@ -56,6 +56,8 @@ type CommandElement interface {
 }

 type Actions struct {
+	XMLName xml.Name `xml:"actions"`
+
 	Prev     *struct{} `xml:"prev,omitempty"`
 	Next     *struct{} `xml:"next,omitempty"`
 	Complete *struct{} `xml:"complete,omitempty"`
@@ -68,6 +70,8 @@ func (a *Actions) Ref() string {
 }

 type Note struct {
+	XMLName xml.Name `xml:"note"`
+
 	Text string `xml:",cdata"`
 	Type string `xml:"type,attr,omitempty"`
 }
@@ -117,22 +121,22 @@ func (c *Command) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
 			var err error
 			switch tt.Name.Local {

-			case "affiliations":
+			case "actions":
 				a := Actions{}
 				err = d.DecodeElement(&a, &tt)
-				c.CommandElement = &a
-			case "configure":
+				c.CommandElements = append(c.CommandElements, &a)
+			case "note":
 				nt := Note{}
 				err = d.DecodeElement(&nt, &tt)
-				c.CommandElement = &nt
+				c.CommandElements = append(c.CommandElements, &nt)
 			case "x":
 				f := Form{}
 				err = d.DecodeElement(&f, &tt)
-				c.CommandElement = &f
+				c.CommandElements = append(c.CommandElements, &f)
 			default:
 				n := Node{}
 				err = d.DecodeElement(&n, &tt)
-				c.CommandElement = &n
+				c.CommandElements = append(c.CommandElements, &n)
 				if err != nil {
 					return err
 				}
--- a/stanza/commands_test.go
+++ b/stanza/commands_test.go
@@ -2,8 +2,9 @@ package stanza_test

 import (
 	"encoding/xml"
-	"gosrc.io/xmpp/stanza"
 	"testing"
+
+	"gosrc.io/xmpp/stanza"
 )

 func TestMarshalCommands(t *testing.T) {
@@ -35,6 +36,6 @@ func TestMarshalCommands(t *testing.T) {
 	}

 	if err := compareMarshal(input, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }
--- a/stanza/datetime_profiles.go
+++ b/stanza/datetime_profiles.go
@@ -0,0 +1,70 @@
+package stanza
+
+import (
+	"errors"
+	"strings"
+	"time"
+)
+
+// Helper structures and functions to manage dates and timestamps as defined in
+// XEP-0082: XMPP Date and Time Profiles (https://xmpp.org/extensions/xep-0082.html)
+
+const dateLayoutXEP0082 = "2006-01-02"
+const timeLayoutXEP0082 = "15:04:05+00:00"
+
+var InvalidDateInput = errors.New("could not parse date. Input might not be in a supported format")
+var InvalidDateOutput = errors.New("could not format date as desired")
+
+type JabberDate struct {
+	value time.Time
+}
+
+func (d JabberDate) DateToString() string {
+	return d.value.Format(dateLayoutXEP0082)
+}
+
+func (d JabberDate) DateTimeToString(nanos bool) string {
+	if nanos {
+		return d.value.Format(time.RFC3339Nano)
+	}
+	return d.value.Format(time.RFC3339)
+}
+
+func (d JabberDate) TimeToString(nanos bool) (string, error) {
+	if nanos {
+		spl := strings.Split(d.value.Format(time.RFC3339Nano), "T")
+		if len(spl) != 2 {
+			return "", InvalidDateOutput
+		}
+		return spl[1], nil
+	}
+	spl := strings.Split(d.value.Format(time.RFC3339), "T")
+	if len(spl) != 2 {
+		return "", InvalidDateOutput
+	}
+	return spl[1], nil
+}
+
+func NewJabberDateFromString(strDate string) (JabberDate, error) {
+	t, err := time.Parse(time.RFC3339, strDate)
+	if err == nil {
+		return JabberDate{value: t}, nil
+	}
+
+	t, err = time.Parse(time.RFC3339Nano, strDate)
+	if err == nil {
+		return JabberDate{value: t}, nil
+	}
+
+	t, err = time.Parse(dateLayoutXEP0082, strDate)
+	if err == nil {
+		return JabberDate{value: t}, nil
+	}
+
+	t, err = time.Parse(timeLayoutXEP0082, strDate)
+	if err == nil {
+		return JabberDate{value: t}, nil
+	}
+
+	return JabberDate{}, InvalidDateInput
+}
--- a/stanza/datetime_profiles_test.go
+++ b/stanza/datetime_profiles_test.go
@@ -0,0 +1,191 @@
+package stanza
+
+import (
+	"testing"
+	"time"
+)
+
+func TestDateToString(t *testing.T) {
+	t1 := JabberDate{value: time.Now()}
+	t2 := JabberDate{value: time.Now().Add(24 * time.Hour)}
+
+	t1Str := t1.DateToString()
+	t2Str := t2.DateToString()
+
+	if t1Str == t2Str {
+		t.Fatalf("time representations should not be identical")
+	}
+}
+
+func TestDateToStringOracle(t *testing.T) {
+	expected := "2009-11-10"
+	loc, err := time.LoadLocation("Asia/Shanghai")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
+
+	t1Str := t1.DateToString()
+	if t1Str != expected {
+		t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
+	}
+}
+
+func TestDateTimeToString(t *testing.T) {
+	t1 := JabberDate{value: time.Now()}
+	t2 := JabberDate{value: time.Now().Add(10 * time.Second)}
+
+	t1Str := t1.DateTimeToString(false)
+	t2Str := t2.DateTimeToString(false)
+
+	if t1Str == t2Str {
+		t.Fatalf("time representations should not be identical")
+	}
+}
+
+func TestDateTimeToStringOracle(t *testing.T) {
+	expected := "2009-11-10T23:03:22+08:00"
+	loc, err := time.LoadLocation("Asia/Shanghai")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
+
+	t1Str := t1.DateTimeToString(false)
+	if t1Str != expected {
+		t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
+	}
+}
+
+func TestDateTimeToStringNanos(t *testing.T) {
+	t1 := JabberDate{value: time.Now()}
+	time.After(10 * time.Millisecond)
+	t2 := JabberDate{value: time.Now()}
+
+	t1Str := t1.DateTimeToString(true)
+	t2Str := t2.DateTimeToString(true)
+
+	if t1Str == t2Str {
+		t.Fatalf("time representations should not be identical")
+	}
+}
+
+func TestDateTimeToStringNanosOracle(t *testing.T) {
+	expected := "2009-11-10T23:03:22.000000089+08:00"
+	loc, err := time.LoadLocation("Asia/Shanghai")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
+
+	t1Str := t1.DateTimeToString(true)
+	if t1Str != expected {
+		t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
+	}
+}
+
+func TestTimeToString(t *testing.T) {
+	t1 := JabberDate{value: time.Now()}
+	t2 := JabberDate{value: time.Now().Add(10 * time.Second)}
+
+	t1Str, err := t1.TimeToString(false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t2Str, err := t2.TimeToString(false)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if t1Str == t2Str {
+		t.Fatalf("time representations should not be identical")
+	}
+}
+
+func TestTimeToStringOracle(t *testing.T) {
+	expected := "23:03:22+08:00"
+	loc, err := time.LoadLocation("Asia/Shanghai")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
+
+	t1Str, err := t1.TimeToString(false)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if t1Str != expected {
+		t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
+	}
+}
+
+func TestTimeToStringNanos(t *testing.T) {
+	t1 := JabberDate{value: time.Now()}
+	time.Sleep(10 * time.Millisecond)
+	t2 := JabberDate{value: time.Now()}
+
+	t1Str, err := t1.TimeToString(true)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t2Str, err := t2.TimeToString(true)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if t1Str == t2Str {
+		t.Fatalf("time representations should not be identical")
+	}
+}
+func TestTimeToStringNanosOracle(t *testing.T) {
+	expected := "23:03:22.000000089+08:00"
+	loc, err := time.LoadLocation("Asia/Shanghai")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
+
+	t1Str, err := t1.TimeToString(true)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if t1Str != expected {
+		t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
+	}
+}
+
+func TestJabberDateParsing(t *testing.T) {
+	date := "2009-11-10"
+	_, err := NewJabberDateFromString(date)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	dateTime := "2009-11-10T23:03:22+08:00"
+	_, err = NewJabberDateFromString(dateTime)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	dateTimeNanos := "2009-11-10T23:03:22.000000089+08:00"
+	_, err = NewJabberDateFromString(dateTimeNanos)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// TODO : fix these. Parsing a time with an offset doesn't work
+	//time := "23:03:22+08:00"
+	//_, err = NewJabberDateFromString(time)
+	//if err != nil {
+	//	t.Fatalf(err.Error())
+	//}
+
+	//timeNanos := "23:03:22.000000089+08:00"
+	//_, err = NewJabberDateFromString(timeNanos)
+	//if err != nil {
+	//	t.Fatalf(err.Error())
+	//}
+
+}
--- a/stanza/fifo_queue.go
+++ b/stanza/fifo_queue.go
@@ -0,0 +1,34 @@
+package stanza
+
+// FIFO queue for string contents
+// Implementations have no guarantee regarding thread safety !
+type FifoQueue interface {
+	// Pop returns the first inserted element still in queue and deletes it from queue. If queue is empty, returns nil
+	// No guarantee regarding thread safety !
+	Pop() Queueable
+
+	// PopN returns the N first inserted elements still in queue and deletes them from queue. If queue is empty or i<=0, returns nil
+	// If number to pop is greater than queue length, returns all queue elements
+	// No guarantee regarding thread safety !
+	PopN(i int) []Queueable
+
+	// Peek returns a copy of the first inserted element in queue without deleting it. If queue is empty, returns nil
+	// No guarantee regarding thread safety !
+	Peek() Queueable
+
+	// Peek returns a copy of the first inserted element in queue without deleting it. If queue is empty or i<=0, returns nil.
+	// If number to peek is greater than queue length, returns all queue elements
+	// No guarantee regarding thread safety !
+	PeekN() []Queueable
+	// Push adds an element to the queue
+	// No guarantee regarding thread safety !
+	Push(s Queueable) error
+
+	// Empty returns true if queue is empty
+	// No guarantee regarding thread safety !
+	Empty() bool
+}
+
+type Queueable interface {
+	QueueableName() string
+}
--- a/stanza/jid.go
+++ b/stanza/jid.go
@@ -51,11 +51,21 @@ func NewJid(sjid string) (*Jid, error) {
 }

 func (j *Jid) Full() string {
-	return j.Node + "@" + j.Domain + "/" + j.Resource
+	if j.Resource == "" {
+		return j.Bare()
+	} else if j.Node == "" {
+		return j.Node + "/" + j.Resource
+	} else {
+		return j.Node + "@" + j.Domain + "/" + j.Resource
+	}
 }

 func (j *Jid) Bare() string {
-	return j.Node + "@" + j.Domain
+	if j.Node == "" {
+		return j.Domain
+	} else {
+		return j.Node + "@" + j.Domain
+	}
 }

 // ============================================================================
--- a/stanza/jid_test.go
+++ b/stanza/jid_test.go
@@ -61,26 +61,41 @@ func TestIncorrectJids(t *testing.T) {
 }

 func TestFull(t *testing.T) {
-	jid := "test@domain.com/my resource"
-	parsedJid, err := NewJid(jid)
-	if err != nil {
-		t.Errorf("could not parse jid: %v", err)
+	fullJids := []string{
+		"test@domain.com/my resource",
+		"test@domain.com",
+		"domain.com",
 	}
-	fullJid := parsedJid.Full()
-	if fullJid != jid {
-		t.Errorf("incorrect full jid: %s", fullJid)
+	for _, sjid := range fullJids {
+		parsedJid, err := NewJid(sjid)
+		if err != nil {
+			t.Errorf("could not parse jid: %v", err)
+		}
+		fullJid := parsedJid.Full()
+		if fullJid != sjid {
+			t.Errorf("incorrect full jid: %s", fullJid)
+		}
 	}
 }

 func TestBare(t *testing.T) {
-	jid := "test@domain.com"
-	fullJid := jid + "/my resource"
-	parsedJid, err := NewJid(fullJid)
-	if err != nil {
-		t.Errorf("could not parse jid: %v", err)
+	tests := []struct {
+		jidstr   string
+		expected string
+	}{
+		{jidstr: "test@domain.com", expected: "test@domain.com"},
+		{jidstr: "test@domain.com/resource", expected: "test@domain.com"},
+		{jidstr: "domain.com", expected: "domain.com"},
 	}
-	bareJid := parsedJid.Bare()
-	if bareJid != jid {
-		t.Errorf("incorrect bare jid: %s", bareJid)
+
+	for _, tt := range tests {
+		parsedJid, err := NewJid(tt.jidstr)
+		if err != nil {
+			t.Errorf("could not parse jid: %v", err)
+		}
+		bareJid := parsedJid.Bare()
+		if bareJid != tt.expected {
+			t.Errorf("incorrect bare jid: %s", bareJid)
+		}
 	}
 }
--- a/stanza/msg_hint.go
+++ b/stanza/msg_hint.go
@@ -0,0 +1,36 @@
+package stanza
+
+import "encoding/xml"
+
+/*
+Support for:
+- XEP-0334: Message Processing Hints: https://xmpp.org/extensions/xep-0334.html
+Pointers should be used to keep consistent with unmarshal. Eg :
+msg.Extensions = append(msg.Extensions, &stanza.HintNoCopy{}, &stanza.HintStore{})
+*/
+
+type HintNoPermanentStore struct {
+	MsgExtension
+	XMLName xml.Name `xml:"urn:xmpp:hints no-permanent-store"`
+}
+
+type HintNoStore struct {
+	MsgExtension
+	XMLName xml.Name `xml:"urn:xmpp:hints no-store"`
+}
+
+type HintNoCopy struct {
+	MsgExtension
+	XMLName xml.Name `xml:"urn:xmpp:hints no-copy"`
+}
+type HintStore struct {
+	MsgExtension
+	XMLName xml.Name `xml:"urn:xmpp:hints store"`
+}
+
+func init() {
+	TypeRegistry.MapExtension(PKTMessage, xml.Name{Space: "urn:xmpp:hints", Local: "no-permanent-store"}, HintNoPermanentStore{})
+	TypeRegistry.MapExtension(PKTMessage, xml.Name{Space: "urn:xmpp:hints", Local: "no-store"}, HintNoStore{})
+	TypeRegistry.MapExtension(PKTMessage, xml.Name{Space: "urn:xmpp:hints", Local: "no-copy"}, HintNoCopy{})
+	TypeRegistry.MapExtension(PKTMessage, xml.Name{Space: "urn:xmpp:hints", Local: "store"}, HintStore{})
+}
--- a/stanza/msg_hint_test.go
+++ b/stanza/msg_hint_test.go
@@ -0,0 +1,72 @@
+package stanza_test
+
+import (
+	"encoding/xml"
+	"gosrc.io/xmpp/stanza"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+const msg_const = `
+<message
+    from="romeo@montague.lit/laptop"
+    to="juliet@capulet.lit/laptop">
+  <body>V unir avtugf pybnx gb uvqr zr sebz gurve fvtug</body>
+  <no-copy xmlns="urn:xmpp:hints"></no-copy>
+  <no-permanent-store xmlns="urn:xmpp:hints"></no-permanent-store>
+  <no-store xmlns="urn:xmpp:hints"></no-store>
+  <store xmlns="urn:xmpp:hints"></store>
+</message>`
+
+func TestSerializationHint(t *testing.T) {
+	msg := stanza.NewMessage(stanza.Attrs{To: "juliet@capulet.lit/laptop", From: "romeo@montague.lit/laptop"})
+	msg.Body = "V unir avtugf pybnx gb uvqr zr sebz gurve fvtug"
+	msg.Extensions = append(msg.Extensions, stanza.HintNoCopy{}, stanza.HintNoPermanentStore{}, stanza.HintNoStore{}, stanza.HintStore{})
+	data, _ := xml.Marshal(msg)
+	if strings.ReplaceAll(strings.Join(strings.Fields(msg_const), ""), "\n", "") != strings.Join(strings.Fields(string(data)), "") {
+		t.Fatalf("marshalled message does not match expected message")
+	}
+}
+
+func TestUnmarshalHints(t *testing.T) {
+	// Init message as in the const value
+	msgConst := stanza.NewMessage(stanza.Attrs{To: "juliet@capulet.lit/laptop", From: "romeo@montague.lit/laptop"})
+	msgConst.Body = "V unir avtugf pybnx gb uvqr zr sebz gurve fvtug"
+	msgConst.Extensions = append(msgConst.Extensions, &stanza.HintNoCopy{}, &stanza.HintNoPermanentStore{}, &stanza.HintNoStore{}, &stanza.HintStore{})
+
+	// Compare message with the const value
+	msg := stanza.Message{}
+	err := xml.Unmarshal([]byte(msg_const), &msg)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if msgConst.XMLName.Local != msg.XMLName.Local {
+		t.Fatalf("message tags do not match. Expected: %s, Actual: %s", msgConst.XMLName.Local, msg.XMLName.Local)
+	}
+	if msgConst.Body != msg.Body {
+		t.Fatalf("message bodies do not match. Expected: %s, Actual: %s", msgConst.Body, msg.Body)
+	}
+
+	if !reflect.DeepEqual(msgConst.Attrs, msg.Attrs) {
+		t.Fatalf("attributes do not match")
+	}
+
+	if !reflect.DeepEqual(msgConst.Error, msg.Error) {
+		t.Fatalf("attributes do not match")
+	}
+	var found bool
+	for _, ext := range msgConst.Extensions {
+		for _, strExt := range msg.Extensions {
+			if reflect.TypeOf(ext) == reflect.TypeOf(strExt) {
+				found = true
+				break
+			}
+		}
+		if !found {
+			t.Fatalf("extensions do not match")
+		}
+		found = false
+	}
+}
--- a/stanza/pubsub_owner.go
+++ b/stanza/pubsub_owner.go
@@ -237,10 +237,10 @@ func NewApprovePendingSubRequest(serviceId, sessionId, nodeId string) (*IQ, erro
 	}
 	iq.Payload = &Command{
 		//  the command name ('node' attribute of the command element) MUST have a value of "http://jabber.org/protocol/pubsub#get-pending"
-		Node:           "http://jabber.org/protocol/pubsub#get-pending",
-		Action:         CommandActionExecute,
-		SessionId:      sessionId,
-		CommandElement: &n,
+		Node:            "http://jabber.org/protocol/pubsub#get-pending",
+		Action:          CommandActionExecute,
+		SessionId:       sessionId,
+		CommandElements: []CommandElement{&n},
 	}
 	return iq, nil
 }
@@ -353,11 +353,18 @@ func (iq *IQ) GetFormFields() (map[string]*Field, error) {

 	case *Command:
 		fieldMap := make(map[string]*Field)
-		co, ok := payload.CommandElement.(*Form)
-		if !ok {
+		var form *Form
+		for _, ce := range payload.CommandElements {
+			fo, ok := ce.(*Form)
+			if ok {
+				form = fo
+				break
+			}
+		}
+		if form == nil {
 			return nil, errors.New("this IQ does not contain a command payload with a form")
 		}
-		for _, elt := range co.Fields {
+		for _, elt := range form.Fields {
 			fieldMap[elt.Var] = elt
 		}
 		return fieldMap, nil
--- a/stanza/pubsub_owner_test.go
+++ b/stanza/pubsub_owner_test.go
@@ -3,8 +3,9 @@ package stanza_test
 import (
 	"encoding/xml"
 	"errors"
-	"gosrc.io/xmpp/stanza"
 	"testing"
+
+	"gosrc.io/xmpp/stanza"
 )

 // ******************************
@@ -45,7 +46,7 @@ func TestNewConfigureNode(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -100,7 +101,7 @@ func TestNewConfigureNodeResp(t *testing.T) {

 	pubsub, err := getPubSubOwnerPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 	if pubsub.OwnerUseCase == nil {
 		t.Fatalf("owner use case is nil")
@@ -154,7 +155,7 @@ func TestNewRequestDefaultConfig(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -209,7 +210,7 @@ func TestNewRequestDefaultConfigResp(t *testing.T) {

 	pubsub, err := getPubSubOwnerPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 	if pubsub.OwnerUseCase == nil {
 		t.Fatalf("owner use case is nil")
@@ -264,7 +265,7 @@ func TestNewDelNode(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -281,7 +282,7 @@ func TestNewDelNodeResp(t *testing.T) {

 	pubsub, err := getPubSubOwnerPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 	if pubsub.OwnerUseCase == nil {
 		t.Fatalf("owner use case is nil")
@@ -340,7 +341,7 @@ func TestNewPurgeAllItems(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -390,7 +391,7 @@ func TestNewApproveSubRequest(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -428,7 +429,7 @@ func TestNewGetPendingSubRequests(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -510,7 +511,7 @@ func TestNewApprovePendingSubRequest(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -549,7 +550,7 @@ func TestNewSubListRqPl(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -624,7 +625,7 @@ func TestNewAffiliationListRequest(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -718,7 +719,7 @@ func TestNewModifAffiliationRequest(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -864,7 +865,7 @@ func TestNewFormSubmissionOwner(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

--- a/stanza/pubsub_test.go
+++ b/stanza/pubsub_test.go
@@ -3,9 +3,10 @@ package stanza_test
 import (
 	"encoding/xml"
 	"errors"
-	"gosrc.io/xmpp/stanza"
 	"strings"
 	"testing"
+
+	"gosrc.io/xmpp/stanza"
 )

 var submitFormExample = stanza.NewForm([]*stanza.Field{
@@ -51,7 +52,7 @@ func TestNewSubRequest(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}

 }
@@ -68,7 +69,7 @@ func TestNewSubResp(t *testing.T) {

 	pubsub, err := getPubSubGenericPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}

 	if pubsub.Subscription == nil {
@@ -114,7 +115,7 @@ func TestNewUnSubRequest(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -130,7 +131,7 @@ func TestNewUnsubResp(t *testing.T) {

 	pubsub, err := getPubSubGenericPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}

 	if pubsub.Subscription == nil {
@@ -175,7 +176,7 @@ func TestNewSubOptsRq(t *testing.T) {
 	}
 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -228,7 +229,7 @@ func TestNewNewConfOptsRsp(t *testing.T) {

 	pubsub, err := getPubSubGenericPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}

 	if pubsub.SubOptions == nil {
@@ -286,7 +287,7 @@ func TestNewFormSubmission(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -343,7 +344,7 @@ func TestNewSubAndConfig(t *testing.T) {
 	}
 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -381,7 +382,7 @@ func TestNewSubAndConfigResp(t *testing.T) {

 	pubsub, err := getPubSubGenericPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 	if pubsub.Subscription == nil {
 		t.Fatalf("sub node is nil")
@@ -459,7 +460,7 @@ func TestNewItemsResp(t *testing.T) {

 	pubsub, err := getPubSubGenericPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 	if pubsub.Items == nil {
 		t.Fatalf("sub options node is nil")
@@ -500,7 +501,7 @@ func TestNewSpecificItemRequest(t *testing.T) {
 	}
 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -664,7 +665,7 @@ func TestNewDelItemFromNode(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -700,7 +701,7 @@ func TestNewCreateNode(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -714,7 +715,7 @@ func TestNewCreateNodeResp(t *testing.T) {
 `
 	pubsub, err := getPubSubGenericPayload(response)
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 	if pubsub.Create == nil {
 		t.Fatalf("create segment is nil")
@@ -783,7 +784,7 @@ func TestNewCreateAndConfigNode(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expectedReq, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}

 }
@@ -808,7 +809,7 @@ func TestNewRetrieveAllSubsRequest(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expected, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

@@ -868,7 +869,7 @@ func TestNewRetrieveAllAffilsRequest(t *testing.T) {

 	data, err := xml.Marshal(subR)
 	if err := compareMarshal(expected, string(data)); err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 }

--- a/stanza/results_sets.go
+++ b/stanza/results_sets.go
@@ -24,6 +24,6 @@ type ResultSet struct {

 type First struct {
 	XMLName xml.Name `xml:"first"`
-	Content string
-	Index   *int `xml:"index,attr,omitempty"`
+	Content string   `xml:",chardata"`
+	Index   *int     `xml:"index,attr,omitempty"`
 }
--- a/stanza/sasl_auth.go
+++ b/stanza/sasl_auth.go
@@ -93,8 +93,8 @@ func (b *Bind) GetSet() *ResultSet {
 // This is the draft defining how to handle the transition:
 //    https://tools.ietf.org/html/draft-cridland-xmpp-session-01
 type StreamSession struct {
-	XMLName  xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-session session"`
-	Optional bool     // If element does exist, it mean we are not required to open session
+	XMLName  xml.Name  `xml:"urn:ietf:params:xml:ns:xmpp-session session"`
+	Optional *struct{} // If element does exist, it mean we are not required to open session
 	// Result sets
 	ResultSet *ResultSet `xml:"set,omitempty"`
 }
@@ -109,7 +109,7 @@ func (s *StreamSession) GetSet() *ResultSet {

 func (s *StreamSession) IsOptional() bool {
 	if s.XMLName.Local == "session" {
-		return s.Optional
+		return s.Optional != nil
 	}
 	// If session element is missing, then we should not use session
 	return true
--- a/stanza/sasl_auth_test.go
+++ b/stanza/sasl_auth_test.go
@@ -9,7 +9,7 @@ import (

 // Check that we can detect optional session from advertised stream features
 func TestSessionFeatures(t *testing.T) {
-	streamFeatures := stanza.StreamFeatures{Session: stanza.StreamSession{Optional: true}}
+	streamFeatures := stanza.StreamFeatures{Session: stanza.StreamSession{Optional: &struct{}{}}}

 	data, err := xml.Marshal(streamFeatures)
 	if err != nil {
@@ -32,7 +32,7 @@ func TestSessionIQ(t *testing.T) {
 	if err != nil {
 		t.Fatalf("failed to create IQ: %v", err)
 	}
-	iq.Payload = &stanza.StreamSession{XMLName: xml.Name{Local: "session"}, Optional: true}
+	iq.Payload = &stanza.StreamSession{XMLName: xml.Name{Local: "session"}, Optional: &struct{}{}}

 	data, err := xml.Marshal(iq)
 	if err != nil {
--- a/stanza/stanza_errors.go
+++ b/stanza/stanza_errors.go
@@ -0,0 +1,171 @@
+package stanza
+
+import (
+	"encoding/xml"
+)
+
+type StanzaErrorGroup interface {
+	GroupErrorName() string
+}
+
+type BadFormat struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas bad-format"`
+}
+
+func (e *BadFormat) GroupErrorName() string { return "bad-format" }
+
+type BadNamespacePrefix struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas bad-namespace-prefix"`
+}
+
+func (e *BadNamespacePrefix) GroupErrorName() string { return "bad-namespace-prefix" }
+
+type Conflict struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas conflict"`
+}
+
+func (e *Conflict) GroupErrorName() string { return "conflict" }
+
+type ConnectionTimeout struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas connection-timeout"`
+}
+
+func (e *ConnectionTimeout) GroupErrorName() string { return "connection-timeout" }
+
+type HostGone struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas host-gone"`
+}
+
+func (e *HostGone) GroupErrorName() string { return "host-gone" }
+
+type HostUnknown struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas host-unknown"`
+}
+
+func (e *HostUnknown) GroupErrorName() string { return "host-unknown" }
+
+type ImproperAddressing struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas improper-addressing"`
+}
+
+func (e *ImproperAddressing) GroupErrorName() string { return "improper-addressing" }
+
+type InternalServerError struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas internal-server-error"`
+}
+
+func (e *InternalServerError) GroupErrorName() string { return "internal-server-error" }
+
+type InvalidForm struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas invalid-from"`
+}
+
+func (e *InvalidForm) GroupErrorName() string { return "invalid-from" }
+
+type InvalidId struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas invalid-id"`
+}
+
+func (e *InvalidId) GroupErrorName() string { return "invalid-id" }
+
+type InvalidNamespace struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas invalid-namespace"`
+}
+
+func (e *InvalidNamespace) GroupErrorName() string { return "invalid-namespace" }
+
+type InvalidXML struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas invalid-xml"`
+}
+
+func (e *InvalidXML) GroupErrorName() string { return "invalid-xml" }
+
+type NotAuthorized struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas not-authorized"`
+}
+
+func (e *NotAuthorized) GroupErrorName() string { return "not-authorized" }
+
+type NotWellFormed struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas not-well-formed"`
+}
+
+func (e *NotWellFormed) GroupErrorName() string { return "not-well-formed" }
+
+type PolicyViolation struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas policy-violation"`
+}
+
+func (e *PolicyViolation) GroupErrorName() string { return "policy-violation" }
+
+type RemoteConnectionFailed struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas remote-connection-failed"`
+}
+
+func (e *RemoteConnectionFailed) GroupErrorName() string { return "remote-connection-failed" }
+
+type Reset struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas reset"`
+}
+
+func (e *Reset) GroupErrorName() string { return "reset" }
+
+type ResourceConstraint struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas resource-constraint"`
+}
+
+func (e *ResourceConstraint) GroupErrorName() string { return "resource-constraint" }
+
+type RestrictedXML struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas restricted-xml"`
+}
+
+func (e *RestrictedXML) GroupErrorName() string { return "restricted-xml" }
+
+type SeeOtherHost struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas see-other-host"`
+}
+
+func (e *SeeOtherHost) GroupErrorName() string { return "see-other-host" }
+
+type SystemShutdown struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas system-shutdown"`
+}
+
+func (e *SystemShutdown) GroupErrorName() string { return "system-shutdown" }
+
+type UndefinedCondition struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas undefined-condition"`
+}
+
+func (e *UndefinedCondition) GroupErrorName() string { return "undefined-condition" }
+
+type UnsupportedEncoding struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas unsupported-encoding"`
+}
+
+type UnexpectedRequest struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas unexpected-request"`
+}
+
+func (e *UnexpectedRequest) GroupErrorName() string { return "unexpected-request" }
+
+func (e *UnsupportedEncoding) GroupErrorName() string { return "unsupported-encoding" }
+
+type UnsupportedStanzaType struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas unsupported-stanza-type"`
+}
+
+func (e *UnsupportedStanzaType) GroupErrorName() string { return "unsupported-stanza-type" }
+
+type UnsupportedVersion struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas unsupported-version"`
+}
+
+func (e *UnsupportedVersion) GroupErrorName() string { return "unsupported-version" }
+
+type XMLNotWellFormed struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-stanzas xml-not-well-formed"`
+}
+
+func (e *XMLNotWellFormed) GroupErrorName() string { return "xml-not-well-formed" }
--- a/stanza/stream_features.go
+++ b/stanza/stream_features.go
@@ -118,6 +118,10 @@ type streamManagement struct {
 	XMLName xml.Name `xml:"urn:xmpp:sm:3 sm"`
 }

+func (streamManagement) Name() string {
+	return "streamManagement"
+}
+
 func (sf *StreamFeatures) DoesStreamManagement() (isSupported bool) {
 	if sf.StreamManagement.XMLName.Space+" "+sf.StreamManagement.XMLName.Local == "urn:xmpp:sm:3 sm" {
 		return true
--- a/stanza/stream_management.go
+++ b/stanza/stream_management.go
@@ -3,12 +3,19 @@ package stanza
 import (
 	"encoding/xml"
 	"errors"
+	"sync"
 )

 const (
 	NSStreamManagement = "urn:xmpp:sm:3"
 )

+type SMEnable struct {
+	XMLName xml.Name `xml:"urn:xmpp:sm:3 enable"`
+	Max     *uint    `xml:"max,attr,omitempty"`
+	Resume  *bool    `xml:"resume,attr,omitempty"`
+}
+
 // Enabled as defined in Stream Management spec
 // Reference: https://xmpp.org/extensions/xep-0198.html#enable
 type SMEnabled struct {
@@ -23,6 +30,112 @@ func (SMEnabled) Name() string {
 	return "Stream Management: enabled"
 }

+type UnAckQueue struct {
+	Uslice []*UnAckedStz
+	sync.RWMutex
+}
+type UnAckedStz struct {
+	Id  int
+	Stz string
+}
+
+func NewUnAckQueue() *UnAckQueue {
+	return &UnAckQueue{
+		Uslice:  make([]*UnAckedStz, 0, 10), // Capacity is 0 to comply with "Push" implementation (so that no reachable element is nil)
+		RWMutex: sync.RWMutex{},
+	}
+}
+
+func (u *UnAckedStz) QueueableName() string {
+	return "Un-acknowledged stanza"
+}
+
+func (uaq *UnAckQueue) PeekN(n int) []Queueable {
+	if uaq == nil {
+		return nil
+	}
+	if n <= 0 {
+		return nil
+	}
+	if len(uaq.Uslice) < n {
+		n = len(uaq.Uslice)
+	}
+
+	if len(uaq.Uslice) == 0 {
+		return nil
+	}
+	var r []Queueable
+	for i := 0; i < n; i++ {
+		r = append(r, uaq.Uslice[i])
+	}
+	return r
+}
+
+// No guarantee regarding thread safety !
+func (uaq *UnAckQueue) Pop() Queueable {
+	if uaq == nil {
+		return nil
+	}
+	r := uaq.Peek()
+	if r != nil {
+		uaq.Uslice = uaq.Uslice[1:]
+	}
+	return r
+}
+
+// No guarantee regarding thread safety !
+func (uaq *UnAckQueue) PopN(n int) []Queueable {
+	if uaq == nil {
+		return nil
+	}
+	r := uaq.PeekN(n)
+	uaq.Uslice = uaq.Uslice[len(r):]
+	return r
+}
+
+func (uaq *UnAckQueue) Peek() Queueable {
+	if uaq == nil {
+		return nil
+	}
+	if len(uaq.Uslice) == 0 {
+		return nil
+	}
+	r := uaq.Uslice[0]
+	return r
+}
+
+func (uaq *UnAckQueue) Push(s Queueable) error {
+	if uaq == nil {
+		return nil
+	}
+	pushIdx := 1
+	if len(uaq.Uslice) != 0 {
+		pushIdx = uaq.Uslice[len(uaq.Uslice)-1].Id + 1
+	}
+
+	sStz, ok := s.(*UnAckedStz)
+	if !ok {
+		return errors.New("element in not compatible with this queue. expected an UnAckedStz")
+	}
+
+	e := UnAckedStz{
+		Id:  pushIdx,
+		Stz: sStz.Stz,
+	}
+
+	uaq.Uslice = append(uaq.Uslice, &e)
+
+	return nil
+}
+
+func (uaq *UnAckQueue) Empty() bool {
+	if uaq == nil {
+		return true
+	}
+	r := len(uaq.Uslice)
+	return r == 0
+}
+
 // Request as defined in Stream Management spec
 // Reference: https://xmpp.org/extensions/xep-0198.html#acking
 type SMRequest struct {
@@ -37,7 +150,7 @@ func (SMRequest) Name() string {
 // Reference: https://xmpp.org/extensions/xep-0198.html#acking
 type SMAnswer struct {
 	XMLName xml.Name `xml:"urn:xmpp:sm:3 a"`
-	H       uint     `xml:"h,attr,omitempty"`
+	H       uint     `xml:"h,attr"`
 }

 func (SMAnswer) Name() string {
@@ -49,24 +162,175 @@ func (SMAnswer) Name() string {
 type SMResumed struct {
 	XMLName xml.Name `xml:"urn:xmpp:sm:3 resumed"`
 	PrevId  string   `xml:"previd,attr,omitempty"`
-	H       uint     `xml:"h,attr,omitempty"`
+	H       *uint    `xml:"h,attr,omitempty"`
 }

 func (SMResumed) Name() string {
 	return "Stream Management: resumed"
 }

+// Resume as defined in Stream Management spec
+// Reference: https://xmpp.org/extensions/xep-0198.html#acking
+type SMResume struct {
+	XMLName xml.Name `xml:"urn:xmpp:sm:3 resume"`
+	PrevId  string   `xml:"previd,attr,omitempty"`
+	H       *uint    `xml:"h,attr,omitempty"`
+}
+
+func (SMResume) Name() string {
+	return "Stream Management: resume"
+}
+
 // Failed as defined in Stream Management spec
 // Reference: https://xmpp.org/extensions/xep-0198.html#acking
 type SMFailed struct {
 	XMLName xml.Name `xml:"urn:xmpp:sm:3 failed"`
-	// TODO: Handle decoding error cause (need custom parsing).
+	H       *uint    `xml:"h,attr,omitempty"`
+
+	StreamErrorGroup StanzaErrorGroup
 }

 func (SMFailed) Name() string {
 	return "Stream Management: failed"
 }

+func (smf *SMFailed) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
+	smf.XMLName = start.Name
+
+	// According to https://xmpp.org/rfcs/rfc3920.html#def we should have no attributes aside from the namespace
+	// which we don't use internally
+
+	// decode inner elements
+	for {
+		t, err := d.Token()
+		if err != nil {
+			return err
+		}
+
+		switch tt := t.(type) {
+
+		case xml.StartElement:
+			// Decode sub-elements
+			var err error
+			switch tt.Name.Local {
+			case "bad-format":
+				bf := BadFormat{}
+				err = d.DecodeElement(&bf, &tt)
+				smf.StreamErrorGroup = &bf
+			case "bad-namespace-prefix":
+				bnp := BadNamespacePrefix{}
+				err = d.DecodeElement(&bnp, &tt)
+				smf.StreamErrorGroup = &bnp
+			case "conflict":
+				c := Conflict{}
+				err = d.DecodeElement(&c, &tt)
+				smf.StreamErrorGroup = &c
+			case "connection-timeout":
+				ct := ConnectionTimeout{}
+				err = d.DecodeElement(&ct, &tt)
+				smf.StreamErrorGroup = &ct
+			case "host-gone":
+				hg := HostGone{}
+				err = d.DecodeElement(&hg, &tt)
+				smf.StreamErrorGroup = &hg
+			case "host-unknown":
+				hu := HostUnknown{}
+				err = d.DecodeElement(&hu, &tt)
+				smf.StreamErrorGroup = &hu
+			case "improper-addressing":
+				ia := ImproperAddressing{}
+				err = d.DecodeElement(&ia, &tt)
+				smf.StreamErrorGroup = &ia
+			case "internal-server-error":
+				ise := InternalServerError{}
+				err = d.DecodeElement(&ise, &tt)
+				smf.StreamErrorGroup = &ise
+			case "invalid-from":
+				ifrm := InvalidForm{}
+				err = d.DecodeElement(&ifrm, &tt)
+				smf.StreamErrorGroup = &ifrm
+			case "invalid-id":
+				id := InvalidId{}
+				err = d.DecodeElement(&id, &tt)
+				smf.StreamErrorGroup = &id
+			case "invalid-namespace":
+				ins := InvalidNamespace{}
+				err = d.DecodeElement(&ins, &tt)
+				smf.StreamErrorGroup = &ins
+			case "invalid-xml":
+				ix := InvalidXML{}
+				err = d.DecodeElement(&ix, &tt)
+				smf.StreamErrorGroup = &ix
+			case "not-authorized":
+				na := NotAuthorized{}
+				err = d.DecodeElement(&na, &tt)
+				smf.StreamErrorGroup = &na
+			case "not-well-formed":
+				nwf := NotWellFormed{}
+				err = d.DecodeElement(&nwf, &tt)
+				smf.StreamErrorGroup = &nwf
+			case "policy-violation":
+				pv := PolicyViolation{}
+				err = d.DecodeElement(&pv, &tt)
+				smf.StreamErrorGroup = &pv
+			case "remote-connection-failed":
+				rcf := RemoteConnectionFailed{}
+				err = d.DecodeElement(&rcf, &tt)
+				smf.StreamErrorGroup = &rcf
+			case "resource-constraint":
+				rc := ResourceConstraint{}
+				err = d.DecodeElement(&rc, &tt)
+				smf.StreamErrorGroup = &rc
+			case "restricted-xml":
+				rx := RestrictedXML{}
+				err = d.DecodeElement(&rx, &tt)
+				smf.StreamErrorGroup = &rx
+			case "see-other-host":
+				soh := SeeOtherHost{}
+				err = d.DecodeElement(&soh, &tt)
+				smf.StreamErrorGroup = &soh
+			case "system-shutdown":
+				ss := SystemShutdown{}
+				err = d.DecodeElement(&ss, &tt)
+				smf.StreamErrorGroup = &ss
+			case "undefined-condition":
+				uc := UndefinedCondition{}
+				err = d.DecodeElement(&uc, &tt)
+				smf.StreamErrorGroup = &uc
+			case "unexpected-request":
+				ur := UnexpectedRequest{}
+				err = d.DecodeElement(&ur, &tt)
+				smf.StreamErrorGroup = &ur
+			case "unsupported-encoding":
+				ue := UnsupportedEncoding{}
+				err = d.DecodeElement(&ue, &tt)
+				smf.StreamErrorGroup = &ue
+			case "unsupported-stanza-type":
+				ust := UnsupportedStanzaType{}
+				err = d.DecodeElement(&ust, &tt)
+				smf.StreamErrorGroup = &ust
+			case "unsupported-version":
+				uv := UnsupportedVersion{}
+				err = d.DecodeElement(&uv, &tt)
+				smf.StreamErrorGroup = &uv
+			case "xml-not-well-formed":
+				xnwf := XMLNotWellFormed{}
+				err = d.DecodeElement(&xnwf, &tt)
+				smf.StreamErrorGroup = &xnwf
+			default:
+				return errors.New("error is unknown")
+			}
+			if err != nil {
+				return err
+			}
+		case xml.EndElement:
+			if tt == start.End() {
+				return nil
+			}
+		}
+	}
+}
+
 type smDecoder struct{}

 var sm smDecoder
@@ -78,9 +342,11 @@ func (s smDecoder) decode(p *xml.Decoder, se xml.StartElement) (Packet, error) {
 		return s.decodeEnabled(p, se)
 	case "resumed":
 		return s.decodeResumed(p, se)
+	case "resume":
+		return s.decodeResume(p, se)
 	case "r":
 		return s.decodeRequest(p, se)
-	case "h":
+	case "a":
 		return s.decodeAnswer(p, se)
 	case "failed":
 		return s.decodeFailed(p, se)
@@ -102,6 +368,11 @@ func (smDecoder) decodeResumed(p *xml.Decoder, se xml.StartElement) (SMResumed,
 	return packet, err
 }

+func (smDecoder) decodeResume(p *xml.Decoder, se xml.StartElement) (SMResume, error) {
+	var packet SMResume
+	err := p.DecodeElement(&packet, &se)
+	return packet, err
+}
 func (smDecoder) decodeRequest(p *xml.Decoder, se xml.StartElement) (SMRequest, error) {
 	var packet SMRequest
 	err := p.DecodeElement(&packet, &se)
--- a/stanza/stream_management_test.go
+++ b/stanza/stream_management_test.go
@@ -0,0 +1,226 @@
+package stanza_test
+
+import (
+	"gosrc.io/xmpp/stanza"
+	"math/rand"
+	"reflect"
+	"testing"
+	"time"
+)
+
+func TestPopEmptyQueue(t *testing.T) {
+	var uaq stanza.UnAckQueue
+	popped := uaq.Pop()
+	if popped != nil {
+		t.Fatalf("queue is empty but something was popped !")
+	}
+}
+
+func TestPushUnack(t *testing.T) {
+	uaq := initUnAckQueue()
+	toPush := stanza.UnAckedStz{
+		Id: 3,
+		Stz: `<iq type='submit'
+    from='confucius@scholars.lit/home'
+    to='registrar.scholars.lit'
+    id='kj3b157n'
+    xml:lang='en'>
+  <query xmlns='jabber:iq:register'>
+    <username>confucius</username>
+    <first>Qui</first>
+    <last>Kong</last>
+  </query>
+</iq>`,
+	}
+
+	err := uaq.Push(&toPush)
+	if err != nil {
+		t.Fatalf("could not push element to the queue : %v", err)
+	}
+
+	if len(uaq.Uslice) != 4 {
+		t.Fatalf("push to the non-acked queue failed")
+	}
+	for i := 0; i < 4; i++ {
+		if uaq.Uslice[i].Id != i+1 {
+			t.Fatalf("indexes were not updated correctly. Expected %d got %d", i, uaq.Uslice[i].Id)
+		}
+	}
+
+	// Check that the queue is a fifo : popped element should not be the one we just pushed.
+	popped := uaq.Pop()
+	poppedElt, ok := popped.(*stanza.UnAckedStz)
+	if !ok {
+		t.Fatalf("popped element is not a *stanza.UnAckedStz")
+	}
+
+	if reflect.DeepEqual(*poppedElt, toPush) {
+		t.Fatalf("pushed element is at the top of the fifo queue when it should be at the bottom")
+	}
+
+}
+
+func TestPeekUnack(t *testing.T) {
+	uaq := initUnAckQueue()
+
+	expectedPeek := stanza.UnAckedStz{
+		Id: 1,
+		Stz: `<iq type='set'
+    from='romeo@montague.net/home'
+    to='characters.shakespeare.lit'
+    id='search2'
+    xml:lang='en'>
+  <query xmlns='jabber:iq:search'>
+    <last>Capulet</last>
+  </query>
+</iq>`,
+	}
+
+	if !reflect.DeepEqual(expectedPeek, *uaq.Uslice[0]) {
+		t.Fatalf("peek failed to return the correct stanza")
+	}
+
+}
+
+func TestPeekNUnack(t *testing.T) {
+	uaq := initUnAckQueue()
+	initLen := len(uaq.Uslice)
+	randPop := rand.Int31n(int32(initLen))
+
+	peeked := uaq.PeekN(int(randPop))
+
+	if len(uaq.Uslice) != initLen {
+		t.Fatalf("queue length changed whith peek n operation : had %d found %d after peek", initLen, len(uaq.Uslice))
+	}
+
+	if len(peeked) != int(randPop) {
+		t.Fatalf("did not peek the correct number of element from queue. Expected %d got %d", randPop, len(peeked))
+	}
+}
+
+func TestPeekNUnackTooLong(t *testing.T) {
+	uaq := initUnAckQueue()
+	initLen := len(uaq.Uslice)
+
+	// Have a random number of elements to peek that's greater than the queue size
+	randPop := rand.Int31n(int32(initLen)) + 1 + int32(initLen)
+
+	peeked := uaq.PeekN(int(randPop))
+
+	if len(uaq.Uslice) != initLen {
+		t.Fatalf("total length changed whith peek n operation : had %d found %d after pop", initLen, len(uaq.Uslice))
+	}
+
+	if len(peeked) != initLen {
+		t.Fatalf("did not peek the correct number of element from queue. Expected %d got %d", initLen, len(peeked))
+	}
+
+}
+
+func TestPopNUnack(t *testing.T) {
+	uaq := initUnAckQueue()
+	initLen := len(uaq.Uslice)
+	randPop := rand.Int31n(int32(initLen))
+
+	popped := uaq.PopN(int(randPop))
+
+	if len(uaq.Uslice)+len(popped) != initLen {
+		t.Fatalf("total length changed whith pop n operation : had %d found %d after pop", initLen, len(uaq.Uslice)+len(popped))
+	}
+
+	for _, elt := range popped {
+		for _, oldElt := range uaq.Uslice {
+			if reflect.DeepEqual(elt, oldElt) {
+				t.Fatalf("pop n operation duplicated some elements")
+			}
+		}
+	}
+}
+
+func TestPopNUnackTooLong(t *testing.T) {
+	uaq := initUnAckQueue()
+	initLen := len(uaq.Uslice)
+
+	// Have a random number of elements to pop that's greater than the queue size
+	randPop := rand.Int31n(int32(initLen)) + 1 + int32(initLen)
+
+	popped := uaq.PopN(int(randPop))
+
+	if len(uaq.Uslice)+len(popped) != initLen {
+		t.Fatalf("total length changed whith pop n operation : had %d found %d after pop", initLen, len(uaq.Uslice)+len(popped))
+	}
+
+	for _, elt := range popped {
+		for _, oldElt := range uaq.Uslice {
+			if reflect.DeepEqual(elt, oldElt) {
+				t.Fatalf("pop n operation duplicated some elements")
+			}
+		}
+	}
+}
+
+func TestPopUnack(t *testing.T) {
+	uaq := initUnAckQueue()
+	initLen := len(uaq.Uslice)
+
+	popped := uaq.Pop()
+
+	if len(uaq.Uslice)+1 != initLen {
+		t.Fatalf("total length changed whith pop operation : had %d found %d after pop", initLen, len(uaq.Uslice)+1)
+	}
+	for _, oldElt := range uaq.Uslice {
+		if reflect.DeepEqual(popped, oldElt) {
+			t.Fatalf("pop n operation duplicated some elements")
+		}
+	}
+
+}
+
+func initUnAckQueue() stanza.UnAckQueue {
+	q := []*stanza.UnAckedStz{
+		{
+			Id: 1,
+			Stz: `<iq type='set'
+    from='romeo@montague.net/home'
+    to='characters.shakespeare.lit'
+    id='search2'
+    xml:lang='en'>
+  <query xmlns='jabber:iq:search'>
+    <last>Capulet</last>
+  </query>
+</iq>`,
+		},
+		{Id: 2,
+			Stz: `<iq type='get'
+    from='juliet@capulet.com/balcony'
+    to='characters.shakespeare.lit'
+    id='search3'
+    xml:lang='en'>
+  <query xmlns='jabber:iq:search'/>
+</iq>`},
+		{Id: 3,
+			Stz: `<iq type='set'
+    from='juliet@capulet.com/balcony'
+    to='characters.shakespeare.lit'
+    id='search4'
+    xml:lang='en'>
+  <query xmlns='jabber:iq:search'>
+    <x xmlns='jabber:x:data' type='submit'>
+      <field type='hidden' var='FORM_TYPE'>
+        <value>jabber:iq:search</value>
+      </field>
+      <field var='x-gender'>
+        <value>male</value>
+      </field>
+    </x>
+  </query>
+</iq>`},
+	}
+
+	return stanza.UnAckQueue{Uslice: q}
+
+}
+
+func init() {
+	rand.Seed(time.Now().UTC().UnixNano())
+}
--- a/stream_manager.go
+++ b/stream_manager.go
@@ -25,7 +25,7 @@ import (
 // set callback and trigger reconnection.
 type StreamClient interface {
 	Connect() error
-	Resume(state SMState) error
+	Resume() error
 	Send(packet stanza.Packet) error
 	SendIQ(ctx context.Context, iq *stanza.IQ) (chan stanza.IQ, error)
 	SendRaw(packet string) error
@@ -75,20 +75,18 @@ func (sm *StreamManager) Run() error {
 	}

 	handler := func(e Event) error {
-		switch e.State {
-		case StateConnected:
-			sm.Metrics.setConnectTime()
+		switch e.State.state {
 		case StateSessionEstablished:
 			sm.Metrics.setLoginTime()
 		case StateDisconnected:
 			// Reconnect on disconnection
-			return sm.resume(e.SMState)
+			return sm.resume()
 		case StateStreamError:
 			sm.client.Disconnect()
 			// Only try reconnecting if we have not been kicked by another session to avoid connection loop.
 			// TODO: Make this conflict exception a permanent error
 			if e.StreamError != "conflict" {
-				return sm.connect()
+				return sm.resume()
 			}
 		case StatePermanentError:
 			// Do not attempt to reconnect
@@ -115,20 +113,33 @@ func (sm *StreamManager) Stop() {
 }

 func (sm *StreamManager) connect() error {
-	var state SMState
-	return sm.resume(state)
+	if sm.client != nil {
+		if c, ok := sm.client.(*Client); ok {
+			if c.CurrentState.getState() == StateDisconnected {
+				sm.Metrics = initMetrics()
+				err := c.Connect()
+				if err != nil {
+					return err
+				}
+				if sm.PostConnect != nil {
+					sm.PostConnect(sm.client)
+				}
+				return nil
+			}
+		}
+	}
+	return errors.New("client is not disconnected")
 }

 // resume manages the reconnection loop and apply the define backoff to avoid overloading the server.
-func (sm *StreamManager) resume(state SMState) error {
+func (sm *StreamManager) resume() error {
 	var backoff backoff // TODO: Group backoff calculation features with connection manager?

 	for {
 		var err error
 		// TODO: Make it possible to define logger to log disconnect and reconnection attempts
 		sm.Metrics = initMetrics()
-
-		if err = sm.client.Resume(state); err != nil {
+		if err = sm.client.Resume(); err != nil {
 			var actualErr ConnError
 			if xerrors.As(err, &actualErr) {
 				if actualErr.Permanent {
@@ -152,11 +163,6 @@ func (sm *StreamManager) resume(state SMState) error {

 type Metrics struct {
 	startTime time.Time
-	// ConnectTime returns the duration between client initiation of the TCP/IP
-	// connection to the server and actual TCP/IP session establishment.
-	// This time includes DNS resolution and can be slightly higher if the DNS
-	// resolution result was not in cache.
-	ConnectTime time.Duration
 	// LoginTime returns the between client initiation of the TCP/IP
 	// connection to the server and the return of the login result.
 	// This includes ConnectTime, but also XMPP level protocol negotiation
@@ -172,10 +178,6 @@ func initMetrics() *Metrics {
 	}
 }

-func (m *Metrics) setConnectTime() {
-	m.ConnectTime = time.Since(m.startTime)
-}
-
 func (m *Metrics) setLoginTime() {
 	m.LoginTime = time.Since(m.startTime)
 }
--- a/tcp_server_mock.go
+++ b/tcp_server_mock.go
@@ -36,6 +36,10 @@ const (
 	testClientRawPort
 	testClientIqPort
 	testClientIqFailPort
+	testClientPostConnectHook
+
+	// Client internal tests
+	testClientStreamManagement
 )

 // ClientHandler is passed by the test client to provide custom behaviour to
--- a/xmpp_transport.go
+++ b/xmpp_transport.go
@@ -24,7 +24,8 @@ type XMPPTransport struct {
 	readWriter    io.ReadWriter
 	logFile       io.Writer
 	isSecure      bool
-	closeChan     chan stanza.StreamClosePacket
+	// Used to close TCP connection when a stream close message is received from the server
+	closeChan chan stanza.StreamClosePacket
 }

 var componentStreamOpen = fmt.Sprintf("<?xml version='1.0'?><stream:stream to='%%s' xmlns='%s' xmlns:stream='%s'>", stanza.NSComponent, stanza.NSStream)
@@ -92,6 +93,7 @@ func (t *XMPPTransport) StartTLS() error {
 		return err
 	}

+	t.isSecure = false
 	t.conn = tlsConn
 	t.readWriter = newStreamLogger(tlsConn, t.logFile)
 	t.decoder = xml.NewDecoder(bufio.NewReaderSize(t.readWriter, maxPacketSize))
Author	SHA1	Message	Date
COD3HUNT3R	784ff58cc2	Merge pull request #186 * Updated the xmpp.NewClient call in the README.md example to pass the config parameter as a pointer (&config) instead of a value.	2025-09-29 15:11:55 +02:00
Bohdan Horbeshko	9b815bbbcb	Get rid of CDATA around RSM first element content	2025-09-29 15:06:16 +02:00
Bohdan Horbeshko	4073f34461	Fix serialization of RSM first element	2025-09-29 15:06:16 +02:00
Mickaël Rémond	6973779b17	Fix versions	2025-09-29 14:52:48 +02:00
Mickaël Rémond	c6fce730b7	Update Github action to Go 1.25	2025-09-29 14:01:44 +02:00
Mickaël Rémond	6365fcb59f	Update other dependencies	2025-09-29 14:01:44 +02:00
Mickaël Rémond	8e1c4f1204	Bump Go version and go-cmp version Update code to fix tests.	2025-09-29 14:01:44 +02:00
Mickaël Rémond	7186c058fd	Update test.yaml	2024-05-16 17:41:31 +02:00
Mickaël Rémond	87fb1dfe78	Update test.yaml	2024-05-16 16:51:07 +02:00
Bohdan Horbeshko	655f875918	Support multiple command elements	2024-05-16 16:47:09 +02:00
Bohdan Horbeshko	9af32ad7e0	Fix marshalling/unmarshalling of command children	2024-05-16 16:47:09 +02:00
bodqhrohro	5f99e1cd06	Support partial JIDs in Bare/Full methods	2021-12-14 12:01:36 +01:00
remicorniere	ac5b066815	Merge pull request #164 from remicorniere/XEP-0082 Support for XEP-0082.	2020-05-07 00:10:55 +00:00
CORNIERE Rémi	17d561f829	Support for XEP-0082. Parsing of times with an offset does not work for now (should it ?)	2020-04-29 10:13:31 +02:00
remicorniere	ce71bc5c76	Merge pull request #163 from remicorniere/XEP-0334 Support for XEP-0334Support for XEP-0334 (Message Hints)	2020-04-16 17:26:46 +02:00
CORNIERE Rémi	6a3ee5b0a5	Support for XEP-0334	2020-04-09 10:02:11 +02:00
remicorniere	fe4c366de8	Merge pull request #161 from remicorniere/Issue_160 Fix issue #160	2020-03-16 22:29:03 +00:00
CORNIERE Rémi	0a4acd12c3	Fix issue #160	2020-03-16 16:20:54 +01:00
remicorniere	ef6de6000a	Merge pull request #159 from remicorniere/close_keepalive Close keepalive when recv() ends in client.go	2020-03-16 11:13:13 +00:00
rcorniere	d4960afc97	Close keepalive when recv() ends in client.go	2020-03-10 18:01:47 +01:00
rcorniere	6e84084bb3	Close keepalive when recv() ends in client.go	2020-03-10 17:32:03 +01:00
remicorniere	64e54134df	Merge pull request #158 from remicorniere/reset_IsSecure Reset isSecure in StartTLS()	2020-03-10 16:16:49 +00:00
rcorniere	f1331dcebc	Reset isSecure in StartTLS()	2020-03-10 17:14:26 +01:00
remicorniere	1e92089f96	Merge pull request #155 from remicorniere/Stream_Management_Patch Stream Management	2020-03-10 15:33:59 +00:00
rcorniere	7850d07d37	Renamed Hooks	2020-03-10 16:31:27 +01:00
rcorniere	477a2b114c	Changelog and doc	2020-03-09 17:19:29 +01:00
rcorniere	7a932d0504	Added missing tests	2020-03-09 17:12:32 +01:00
rcorniere	eff622df76	Changelog update	2020-03-09 16:50:12 +01:00
rcorniere	5fcb1c4337	Refactor tests	2020-03-09 16:25:11 +01:00
rcorniere	e59a86c380	Refactor tests	2020-03-06 17:52:52 +01:00
rcorniere	0459144512	First commit with dirty tests	2020-03-06 16:44:01 +01:00
remicorniere	22ba8d1f4e	Merge pull request #150 from jacksgt/patch-2 Remove "no depdencies" statement from README	2020-02-18 10:22:14 +00:00
remicorniere	fa59efbfdc	Merge pull request #151 from FluuxIO/Rmv_Xtra_Deps Removed unnecessary dependencies from the core lib go.mod	2020-02-18 10:13:58 +00:00
Jack Henschel	35e3defc62	Remove "no depdencies" statement from README As is apparent from the current go.mod file, this library definitely depends on various other libraries. This in turn makes it depend on Go 1.13 (currently).	2020-02-11 16:29:52 +01:00