Simplify disco with builder helpers

Simplify disco and software version
Make use of helpers.
2025-11-11 20:33:45 -08:00 · 2019-07-09 18:09:23 +02:00 · 2019-07-09 18:05:26 +02:00 · 2019-07-09 17:53:49 +02:00 · 2019-07-09 17:06:57 +02:00 · 2019-07-09 16:59:54 +02:00
37 changed files with 146 additions and 1138 deletions
--- a/README.md
+++ b/README.md
@@ -8,37 +8,11 @@ The goal is to make simple to write simple XMPP clients and components:

 - For automation (like for example monitoring of an XMPP service),
 - For building connected "things" by plugging them on an XMPP server,
- For writing simple chatbot to control a service or a thing,
+- 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.

-## Configuration and connection
-
-### Allowing Insecure TLS connection during development
-
-It is not recommended to disable the check for domain name and certificate chain. Doing so would open your client
-to man-in-the-middle attacks.
-
-However, in development, XMPP servers often use self-signed certificates. In that situation, it is better to add the
-root CA that signed the certificate to your trusted list of root CA. It avoids changing the code and limit the risk
-of shipping an insecure client to production.
-
-That said, if you really want to allow your client to trust any TLS certificate, you can customize Go standard 
-`tls.Config` and set it in Config struct.
-
-Here is an example code to configure a client to allow connecting to a server with self-signed certificate. Note the 
-`InsecureSkipVerify` option. When using this `tls.Config` option, all the checks on the certificate are skipped.
-
-```go
-config := xmpp.Config{
-	Address:      "localhost:5222",
-	Jid:          "test@localhost",
-	Password:     "test",
-	TLSConfig:     tls.Config{InsecureSkipVerify: true},
-}
-```
-
 ## Supported specifications

 ### Clients
--- a/_examples/go.mod
+++ b/_examples/go.mod
@@ -3,6 +3,7 @@ module gosrc.io/xmpp/_examples
 go 1.12

 require (
+	github.com/google/go-cmp v0.3.0 // indirect
 	github.com/processone/mpg123 v1.0.0
 	github.com/processone/soundcloud v1.0.0
 	gosrc.io/xmpp v0.1.1
--- a/_examples/go.sum
+++ b/_examples/go.sum
@@ -1,7 +1,10 @@
+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/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=
+golang.org/x/net v0.0.0-20190110200230-915654e7eabc h1:Yx9JGxI1SBhVLFjpAkWMaO1TF+xyqtHLjZpvQboJGiM=
 golang.org/x/net v0.0.0-20190110200230-915654e7eabc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522 h1:bhOzK9QyoD0ogCnFro1m2mz41+Ib0oOhfJnBp5MR4K4=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
--- a/_examples/xmpp_echo/xmpp_echo.go
+++ b/_examples/xmpp_echo/xmpp_echo.go
@@ -20,7 +20,6 @@ func main() {
 		Password:     "test",
 		StreamLogger: os.Stdout,
 		Insecure:     true,
-		// TLSConfig: tls.Config{InsecureSkipVerify: true},
 	}

 	router := xmpp.NewRouter()
--- a/cert_checker.go
+++ b/cert_checker.go
@@ -86,9 +86,8 @@ func (c *ServerCheck) Check() error {
 			return fmt.Errorf("expecting starttls proceed: %s", err)
 		}

-		var tlsConfig tls.Config
-		tlsConfig.ServerName = c.domain
-		tlsConn := tls.Client(tcpconn, &tlsConfig)
+		stanza.DefaultTlsConfig.ServerName = c.domain
+		tlsConn := tls.Client(tcpconn, &stanza.DefaultTlsConfig)
 		// We convert existing connection to TLS
 		if err = tlsConn.Handshake(); err != nil {
 			return err
--- a/client.go
+++ b/client.go
@@ -31,18 +31,6 @@ type Event struct {
 	State       ConnState
 	Description string
 	StreamError string
-	SMState     SMState
-}
-
-// SMState holds Stream Management information regarding the session that can be
-// used to resume session after disconnect
-type SMState struct {
-	// Stream Management ID
-	Id string
-	// Inbound stanza count
-	Inbound uint
-	// TODO Store location for IP affinity
-	// TODO Store max and timestamp, to check if we should retry resumption or not
 }

 // EventHandler is use to pass events about state of the connection to
@@ -64,13 +52,6 @@ func (em EventManager) updateState(state ConnState) {
 	}
 }

-func (em EventManager) disconnected(state SMState) {
-	em.CurrentState = StateDisconnected
-	if em.Handler != nil {
-		em.Handler(Event{State: em.CurrentState, SMState: state})
-	}
-}
-
 func (em EventManager) streamError(error, desc string) {
 	em.CurrentState = StateStreamError
 	if em.Handler != nil {
@@ -115,23 +96,9 @@ func NewClient(config Config, r *Router) (c *Client, err error) {
 		return nil, NewConnError(err, true)
 	}

-	// Fallback to jid domain
+	// fallback to jid domain
 	if config.Address == "" {
 		config.Address = config.parsedJid.Domain
-
-		// Fetch SRV DNS-Entries
-		_, srvEntries, err := net.LookupSRV("xmpp-client", "tcp", config.parsedJid.Domain)
-
-		if err == nil && len(srvEntries) > 0 {
-			// If we found matching DNS records, use the entry with highest weight
-			bestSrv := srvEntries[0]
-			for _, srv := range srvEntries {
-				if srv.Priority <= bestSrv.Priority && srv.Weight >= bestSrv.Weight {
-					bestSrv = srv
-					config.Address = ensurePort(srv.Target, int(srv.Port))
-				}
-			}
-		}
 	}
 	config.Address = ensurePort(config.Address, 5222)

@@ -147,15 +114,7 @@ func NewClient(config Config, r *Router) (c *Client, err error) {
 }

 // Connect triggers actual TCP connection, based on previously defined parameters.
-// Connect simply triggers resumption, with an empty session state.
 func (c *Client) Connect() error {
-	var state SMState
-	return c.Resume(state)
-}
-
-// Resume attempts resuming  a Stream Managed session, based on the provided stream management
-// state.
-func (c *Client) Resume(state SMState) error {
 	var err error

 	c.conn, err = net.DialTimeout("tcp", c.config.Address, time.Duration(c.config.ConnectTimeout)*time.Second)
@@ -165,34 +124,30 @@ func (c *Client) Resume(state SMState) error {
 	c.updateState(StateConnected)

 	// Client is ok, we now open XMPP session
-	if c.conn, c.Session, err = NewSession(c.conn, c.config, state); err != nil {
+	if c.conn, c.Session, err = NewSession(c.conn, c.config); err != nil {
 		return err
 	}
 	c.updateState(StateSessionEstablished)

-	// Start the keepalive go routine
-	keepaliveQuit := make(chan struct{})
-	go keepalive(c.conn, 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 ?
 	fmt.Fprintf(c.Session.streamLogger, "<presence/>")

+	// Start the keepalive go routine
+	keepaliveQuit := make(chan struct{})
+	go keepalive(c.conn, keepaliveQuit)
+	// Start the receiver go routine
+	go c.recv(keepaliveQuit)
+
 	return err
 }

 func (c *Client) Disconnect() {
 	_ = c.SendRaw("</stream:stream>")
 	// TODO: Add a way to wait for stream close acknowledgement from the server for clean disconnect
-	conn := c.conn
-	if conn != nil {
-		_ = conn.Close()
-	}
+	_ = c.conn.Close()
 }

 func (c *Client) SetHandler(handler EventHandler) {
@@ -237,12 +192,12 @@ func (c *Client) sendWithLogger(packet string) error {
 // Go routines

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

@@ -253,15 +208,6 @@ func (c *Client) recv(state SMState, keepaliveQuit chan<- struct{}) (err error)
 			close(keepaliveQuit)
 			c.streamError(packet.Error.Local, packet.Text)
 			return errors.New("stream error: " + packet.Error.Local)
-		// Process Stream management nonzas
-		case stanza.SMRequest:
-			answer := stanza.SMAnswer{XMLName: xml.Name{
-				Space: stanza.NSStreamManagement,
-				Local: "a",
-			}, H: state.Inbound}
-			c.Send(answer)
-		default:
-			state.Inbound++
 		}

 		c.router.route(c, val)
--- a/cmd/fluuxmpp/README.md
+++ b/cmd/fluuxmpp/README.md
@@ -1,198 +0,0 @@
-# fluuxmpp
-
-fluuxIO's XMPP command-line tool
-
-## Installation
-
-To install `fluuxmpp` in your Go path:
-
-```
-$ go get -u gosrc.io/xmpp/cmd/fluuxmpp
-```
-
-## Usage
-
-```
-$ fluuxmpp --help
-fluuxIO's xmpp comandline tool
-
-Usage:
-  fluuxmpp [command]
-
-Available Commands:
-  check       is a command-line to check if you XMPP TLS certificate is valid and warn you before it expires
-  help        Help about any command
-  send        is a command-line tool to send to send XMPP messages to users
-
-Flags:
-  -h, --help   help for fluuxmpp
-
-Use "fluuxmpp [command] --help" for more information about a command.
-```
-
-### check tls
-
-```
-$ fluuxmpp check --help
-is a command-line to check if you XMPP TLS certificate is valid and warn you before it expires
-
-Usage:
-  fluuxmpp check <host[:port]> [flags]
-
-Examples:
-fluuxmpp check chat.sum7.eu:5222 --domain meckerspace.de
-
-Flags:
-  -d, --domain string   domain if host handle multiple domains
-  -h, --help            help for check
-```
-
-### sending messages
-
-```
-$ fluuxmpp send --help
-is a command-line tool to send to send XMPP messages to users
-
-Usage:
-  fluuxmpp send <recipient,> [message] [flags]
-
-Examples:
-fluuxmpp send to@chat.sum7.eu "Hello World!"
-
-Flags:
-      --addr string       host[:port]
-      --config string     config file (default is ~/.config/fluuxmpp.yml)
-  -h, --help              help for send
-      --jid string        using jid (required)
-  -m, --muc               recipient is a muc (join it before sending messages)
-      --password string   using password for your jid (required)
-```
-
-
-## Examples
-
-### check tls
-
-If you server is on standard port and XMPP domains matches the hostname you can simply use:
-
-```
-$ fluuxmpp check chat.sum7.eu
- info All checks passed
-   ⇢  address="chat.sum7.eu" domain=""
-   ⇢  main.go:43 main.runCheck
-   ⇢  2019-07-16T22:01:39.765+02:00
-```
-
-You can also pass the port and the XMPP domain if different from the server hostname:
-
-```
-$ fluuxmpp check chat.sum7.eu:5222 --domain meckerspace.de
- info All checks passed
-   ⇢  address="chat.sum7.eu:5222" domain="meckerspace.de"
-   ⇢  main.go:43 main.runCheck
-   ⇢  2019-07-16T22:01:33.270+02:00
-```
-
-Error code will be non-zero in case of error. You can thus use it directly with your usual 
-monitoring scripts.
-
-
-### sending messages
-
-Message from arguments:
-```bash
-$ fluuxmpp send to@example.org "Hello World!"
- info client connected
-   ⇢  cmd.go:56 main.glob..func1.1
-   ⇢  2019-07-17T23:42:43.310+02:00
- info send message
-   ⇢  muc=false text="Hello World!" to="to@example.org"
-   ⇢  send.go:31 main.send
-   ⇢  2019-07-17T23:42:43.310+02:00
-```
-
-Message from STDIN:
-```bash
-$  journalctl -f | fluuxmpp send to@example.org -
- info client connected
-   ⇢  cmd.go:56 main.glob..func1.1
-   ⇢  2019-07-17T23:40:03.177+02:00
- info send message
-   ⇢  muc=false text="-- Logs begin at Mon 2019-07-08 22:16:54 CEST. --" to="to@example.org"
-   ⇢  send.go:31 main.send
-   ⇢  2019-07-17T23:40:03.178+02:00
- info send message
-   ⇢  muc=false text="Jul 17 23:36:46 RECHNERNAME systemd[755]: Started Fetch mails." to="to@example.org"
-   ⇢  send.go:31 main.send
-   ⇢  2019-07-17T23:40:03.178+02:00
-^C
-```
-
-
-Multiple recipients:
-```bash
-$ fluuxmpp send to1@example.org,to2@example.org "Multiple recipient"
- info client connected
-   ⇢  cmd.go:56 main.glob..func1.1
-   ⇢  2019-07-17T23:47:57.650+02:00
- info send message
-   ⇢  muc=false text="Multiple recipient" to="to1@example.org"
-   ⇢  send.go:31 main.send
-   ⇢  2019-07-17T23:47:57.651+02:00
- info send message
-   ⇢  muc=false text="Multiple recipient" to="to2@example.org"
-   ⇢  send.go:31 main.send
-   ⇢  2019-07-17T23:47:57.652+02:00
-```
-
-Send to MUC:
-```bash
-journalctl -f | fluuxmpp send testit@conference.chat.sum7.eu - --muc
- info client connected
-   ⇢  cmd.go:56 main.glob..func1.1
-   ⇢  2019-07-17T23:52:56.269+02:00
- info send message
-   ⇢  muc=true text="-- Logs begin at Mon 2019-07-08 22:16:54 CEST. --" to="testit@conference.chat.sum7.eu"
-   ⇢  send.go:31 main.send
-   ⇢  2019-07-17T23:52:56.270+02:00
- info send message
-   ⇢  muc=true text="Jul 17 23:48:58 RECHNERNAME systemd[755]: mail.service: Succeeded." to="testit@conference.chat.sum7.eu"
-   ⇢  send.go:31 main.send
-   ⇢  2019-07-17T23:52:56.277+02:00
-^C
-```
-
-## Authentification
-
-### Configuration file
-
-In `/etc/`, `~/.config` and `.` (here).
-You could create the file name `fluuxmpp` with you favorite file extension (e.g. `toml`, `yml`).
-
-e.g. ~/.config/fluuxmpp.toml
-```toml
-jid      = "bot@example.org"
-password = "secret"
-
-addr     = "example.com:5222"
-```
-
-### Environment variables
-
-```bash
-export FLUXXMPP_JID='bot@example.org';
-export FLUXXMPP_PASSWORD='secret';
-
-export FLUXXMPP_ADDR='example.com:5222';
-
-fluuxmpp send to@example.org "Hello Welt";
-```
-
-### Parameters
-
-Warning: This should not be used for production systems, as all users on the system
-can read the running processes, and their parameters (and thus the password).
-
-```bash
-fluuxmpp send to@example.org "Hello World!" --jid bot@example.org --password secret --addr example.com:5222;
-```
--- a/cmd/fluuxmpp/TODO.md
+++ b/cmd/fluuxmpp/TODO.md
@@ -1,21 +0,0 @@
-# TODO
-
-## check
-### Features
-
- Use a config file to define the checks to perform as client on an XMPP server.
-
-## send
-
-### Issues
-
- Remove global variable (like mucToleave)
- Does not report error when trying to connect to a non open port (for example localhost with no server running).
-
-### Features
-
- configuration
-  - allow unencrypted
-  - skip tls verification
- support muc and single user at same time
- send html -> parse console colors to xhtml (is there a easy way or lib for it ?)
--- a/cmd/fluuxmpp/check.go
+++ b/cmd/fluuxmpp/check.go
@@ -1,41 +0,0 @@
-package main
-
-import (
-	"github.com/bdlm/log"
-	"github.com/spf13/cobra"
-	"gosrc.io/xmpp"
-)
-
-var domain = ""
-var cmdCheck = &cobra.Command{
-	Use:     "check <host[:port]>",
-	Short:   "is a command-line to check if you XMPP TLS certificate is valid and warn you before it expires",
-	Example: "fluuxmpp check chat.sum7.eu:5222 --domain meckerspace.de",
-	Args:    cobra.ExactArgs(1),
-	Run: func(cmd *cobra.Command, args []string) {
-		runCheck(args[0], domain)
-	},
-}
-
-func init() {
-	cmdRoot.AddCommand(cmdCheck)
-	cmdCheck.Flags().StringVarP(&domain, "domain", "d", "", "domain if host handle multiple domains")
-}
-
-func runCheck(address, domain string) {
-	logger := log.WithFields(map[string]interface{}{
-		"address": address,
-		"domain":  domain,
-	})
-	client, err := xmpp.NewChecker(address, domain)
-
-	if err != nil {
-		log.Fatal("Error: ", err)
-	}
-
-	if err = client.Check(); err != nil {
-		logger.Fatal("Failed connection check: ", err)
-	}
-
-	logger.Println("All checks passed")
-}
--- a/cmd/fluuxmpp/doc.go
+++ b/cmd/fluuxmpp/doc.go
@@ -1,5 +0,0 @@
-/*
-
-fluuxmpp: fluuxIO's xmpp comandline tool
-*/
-package main
--- a/cmd/fluuxmpp/log.go
+++ b/cmd/fluuxmpp/log.go
@@ -1,34 +0,0 @@
-package main
-
-import (
-	"os"
-
-	"github.com/bdlm/log"
-	stdLogger "github.com/bdlm/std/logger"
-)
-
-type hook struct{}
-
-func (h *hook) Fire(entry *log.Entry) error {
-	switch entry.Level {
-	case log.PanicLevel:
-		entry.Logger.Out = os.Stderr
-	case log.FatalLevel:
-		entry.Logger.Out = os.Stderr
-	case log.ErrorLevel:
-		entry.Logger.Out = os.Stderr
-	case log.WarnLevel:
-		entry.Logger.Out = os.Stdout
-	case log.InfoLevel:
-		entry.Logger.Out = os.Stdout
-	case log.DebugLevel:
-		entry.Logger.Out = os.Stdout
-	default:
-	}
-
-	return nil
-}
-
-func (h *hook) Levels() []stdLogger.Level {
-	return log.AllLevels
-}
--- a/cmd/fluuxmpp/main.go
+++ b/cmd/fluuxmpp/main.go
@@ -1,19 +0,0 @@
-package main
-
-import (
-	"github.com/bdlm/log"
-	"github.com/spf13/cobra"
-)
-
-// cmdRoot represents the base command when called without any subcommands
-var cmdRoot = &cobra.Command{
-	Use:   "fluuxmpp",
-	Short: "fluuxIO's xmpp comandline tool",
-}
-
-func main() {
-	log.AddHook(&hook{})
-	if err := cmdRoot.Execute(); err != nil {
-		log.Fatal(err)
-	}
-}
--- a/cmd/fluuxmpp/send.go
+++ b/cmd/fluuxmpp/send.go
@@ -1,134 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"os"
-	"strings"
-	"sync"
-
-	"github.com/bdlm/log"
-	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
-
-	"gosrc.io/xmpp"
-)
-
-var configFile = ""
-
-// FIXME: Remove global variables
-var isMUCRecipient = false
-
-var cmdSend = &cobra.Command{
-	Use:     "send <recipient,> [message]",
-	Short:   "is a command-line tool to send to send XMPP messages to users",
-	Example: `fluuxmpp send to@chat.sum7.eu "Hello World!"`,
-	Args:    cobra.ExactArgs(2),
-	Run:     sendxmpp,
-}
-
-func sendxmpp(cmd *cobra.Command, args []string) {
-	receiver := strings.Split(args[0], ",")
-	msgText := args[1]
-
-	var err error
-	client, err := xmpp.NewClient(xmpp.Config{
-		Jid:      viper.GetString("jid"),
-		Address:  viper.GetString("addr"),
-		Password: viper.GetString("password"),
-	}, xmpp.NewRouter())
-
-	if err != nil {
-		log.Errorf("error when starting xmpp client: %s", err)
-		return
-	}
-
-	wg := sync.WaitGroup{}
-	wg.Add(1)
-
-	// FIXME: Remove global variables
-	var mucsToLeave []*xmpp.Jid
-
-	cm := xmpp.NewStreamManager(client, func(c xmpp.Sender) {
-		defer wg.Done()
-
-		log.Info("client connected")
-
-		if isMUCRecipient {
-			for _, muc := range receiver {
-				jid, err := xmpp.NewJid(muc)
-				if err != nil {
-					log.WithField("muc", muc).Errorf("skipping invalid muc jid: %w", err)
-					continue
-				}
-				jid.Resource = "sendxmpp"
-
-				if err := joinMUC(c, jid); err != nil {
-					log.WithField("muc", muc).Errorf("error joining muc: %w", err)
-					continue
-				}
-				mucsToLeave = append(mucsToLeave, jid)
-			}
-		}
-
-		if msgText != "-" {
-			send(c, receiver, msgText)
-			return
-		}
-
-		scanner := bufio.NewScanner(os.Stdin)
-		for scanner.Scan() {
-			send(c, receiver, scanner.Text())
-		}
-
-		if err := scanner.Err(); err != nil {
-			log.Errorf("error on reading stdin: %s", err)
-		}
-	})
-	go func() {
-		err := cm.Run()
-		log.Panic("closed connection:", err)
-		wg.Done()
-	}()
-
-	wg.Wait()
-
-	leaveMUCs(client, mucsToLeave)
-}
-
-func init() {
-	cmdRoot.AddCommand(cmdSend)
-
-	cobra.OnInitialize(initConfigFile)
-	cmdSend.PersistentFlags().StringVar(&configFile, "config", "", "config file (default is ~/.config/fluuxmpp.yml)")
-
-	cmdSend.Flags().StringP("jid", "", "", "using jid (required)")
-	viper.BindPFlag("jid", cmdSend.Flags().Lookup("jid"))
-
-	cmdSend.Flags().StringP("password", "", "", "using password for your jid (required)")
-	viper.BindPFlag("password", cmdSend.Flags().Lookup("password"))
-
-	cmdSend.Flags().StringP("addr", "", "", "host[:port]")
-	viper.BindPFlag("addr", cmdSend.Flags().Lookup("addr"))
-
-	cmdSend.Flags().BoolVarP(&isMUCRecipient, "muc", "m", false, "recipient is a muc (join it before sending messages)")
-}
-
-// initConfig reads in config file and ENV variables if set.
-func initConfigFile() {
-	if configFile != "" {
-		viper.SetConfigFile(configFile)
-	}
-
-	viper.SetConfigName("fluuxmpp")
-	viper.AddConfigPath("/etc/")
-	viper.AddConfigPath("$HOME/.config")
-	viper.AddConfigPath(".")
-
-	viper.SetEnvPrefix("FLUXXMPP")
-	viper.AutomaticEnv()
-
-	// If a config file is found, read it in.
-	if err := viper.ReadInConfig(); err != nil {
-		log.Warnf("no configuration found (somebody could read your password from process argument list): %s", err)
-	}
-}
--- a/cmd/fluuxmpp/xmppmuc.go
+++ b/cmd/fluuxmpp/xmppmuc.go
@@ -1,28 +0,0 @@
-package main
-
-import (
-	"github.com/bdlm/log"
-
-	"gosrc.io/xmpp"
-	"gosrc.io/xmpp/stanza"
-)
-
-func joinMUC(c xmpp.Sender, toJID *xmpp.Jid) error {
-	return c.Send(stanza.Presence{Attrs: stanza.Attrs{To: toJID.Full()},
-		Extensions: []stanza.PresExtension{
-			stanza.MucPresence{
-				History: stanza.History{MaxStanzas: stanza.NewNullableInt(0)},
-			}},
-	})
-}
-
-func leaveMUCs(c xmpp.Sender, mucsToLeave []*xmpp.Jid) {
-	for _, muc := range mucsToLeave {
-		if err := c.Send(stanza.Presence{Attrs: stanza.Attrs{
-			To:   muc.Full(),
-			Type: stanza.PresenceTypeUnavailable,
-		}}); err != nil {
-			log.WithField("muc", muc).Errorf("error on leaving muc: %s", err)
-		}
-	}
-}
--- a/cmd/fluuxmpp/xmppsend.go
+++ b/cmd/fluuxmpp/xmppsend.go
@@ -1,36 +0,0 @@
-package main
-
-import (
-	"github.com/bdlm/log"
-
-	"gosrc.io/xmpp"
-	"gosrc.io/xmpp/stanza"
-)
-
-func send(c xmpp.Sender, recipient []string, msgText string) {
-	msg := stanza.Message{
-		Attrs: stanza.Attrs{Type: stanza.MessageTypeChat},
-		Body:  msgText,
-	}
-
-	if isMUCRecipient {
-		msg.Type = stanza.MessageTypeGroupchat
-	}
-
-	for _, to := range recipient {
-		msg.To = to
-		if err := c.Send(msg); err != nil {
-			log.WithFields(map[string]interface{}{
-				"muc":  isMUCRecipient,
-				"to":   to,
-				"text": msgText,
-			}).Errorf("error on send message: %s", err)
-		} else {
-			log.WithFields(map[string]interface{}{
-				"muc":  isMUCRecipient,
-				"to":   to,
-				"text": msgText,
-			}).Info("send message")
-		}
-	}
-}
--- a/cmd/go.mod
+++ b/cmd/go.mod
@@ -1,13 +0,0 @@
-module gosrc.io/xmpp/cmd
-
-go 1.12
-
-require (
-	github.com/bdlm/log v0.1.19
-	github.com/bdlm/std v0.0.0-20180922040903-fd3b596111c7
-	github.com/spf13/cobra v0.0.5
-	github.com/spf13/viper v1.4.0
-	gosrc.io/xmpp v0.1.1
-)
-
-replace gosrc.io/xmpp => ./../
--- a/cmd/go.sum
+++ b/cmd/go.sum
@@ -1,160 +0,0 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
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-github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
-github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
-github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
-github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
-github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
-github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
-go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
-go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
-go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
-go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
-golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20181220203305-927f97764cc3/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/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=
-golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522 h1:bhOzK9QyoD0ogCnFro1m2mz41+Ib0oOhfJnBp5MR4K4=
-golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-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=
-google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
-gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
-gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
-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=
-honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/cmd/xmpp-check/README.md
+++ b/cmd/xmpp-check/README.md
@@ -0,0 +1,30 @@
+# XMPP Check
+
+XMPP check is a tool to check TLS certificate on a remote server.
+
+## Installation
+
+To install `xmpp-check` in your Go path:
+
+```
+$ go get -u gosrc.io/xmpp/cmd/xmpp-check
+```
+
+## Usage
+
+If you server is on standard port and XMPP domains matches the hostname you can simply use:
+
+```
+$ xmpp-check myhost.net
+2019/05/16 16:04:36 All checks passed
+```
+
+You can also pass the port and the XMPP domain if different from the server hostname:
+
+```
+$ xmpp-check myhost.net:5222 xmppdomain.net
+2019/05/16 16:05:21 All checks passed
+```
+
+Error code will be non-zero in case of error. You can thus use it directly with your usual 
+monitoring scripts.
--- a/cmd/xmpp-check/TODO.md
+++ b/cmd/xmpp-check/TODO.md
@@ -0,0 +1,3 @@
+# TODO
+
+- Use a config file to define the checks to perform as client on an XMPP server.
--- a/cmd/xmpp-check/doc.go
+++ b/cmd/xmpp-check/doc.go
@@ -0,0 +1,6 @@
+/*
+
+xmpp-check is a command-line to check if you XMPP TLS certificate is valid and warn you before it expires.
+
+*/
+package main
--- a/cmd/xmpp-check/xmpp-check.go
+++ b/cmd/xmpp-check/xmpp-check.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	"gosrc.io/xmpp"
+)
+
+func main() {
+	args := os.Args[1:]
+
+	if len(args) == 0 {
+		log.Fatal("usage: xmpp-check host[:port] [domain]")
+	}
+
+	var address string
+	var domain string
+	if len(args) >= 1 {
+		address = args[0]
+	}
+
+	if len(args) >= 2 {
+		domain = args[1]
+	}
+
+	runCheck(address, domain)
+}
+
+func runCheck(address, domain string) {
+	client, err := xmpp.NewChecker(address, domain)
+
+	if err != nil {
+		log.Fatal("Error: ", err)
+	}
+
+	if err = client.Check(); err != nil {
+		log.Fatal("Failed connection check: ", err)
+	}
+
+	log.Println("All checks passed")
+}
--- a/component.go
+++ b/component.go
@@ -66,67 +66,52 @@ func NewComponent(opts ComponentOptions, r *Router) (*Component, 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)
-}
-func (c *Component) Resume(sm SMState) error {
 	var conn net.Conn
 	var err error
 	if conn, err = net.DialTimeout("tcp", c.Address, time.Duration(5)*time.Second); err != nil {
 		return err
 	}
 	c.conn = conn
-	c.updateState(StateConnected)

 	// 1. Send stream open tag
 	if _, err := fmt.Fprintf(conn, componentStreamOpen, c.Domain, stanza.NSComponent, stanza.NSStream); err != nil {
-		c.updateState(StateStreamError)
-		return NewConnError(errors.New("cannot send stream open "+err.Error()), false)
+		return errors.New("cannot send stream open " + err.Error())
 	}
 	c.decoder = xml.NewDecoder(conn)

 	// 2. Initialize xml decoder and extract streamID from reply
 	streamId, err := stanza.InitStream(c.decoder)
 	if err != nil {
-		c.updateState(StateStreamError)
-		return NewConnError(errors.New("cannot init decoder "+err.Error()), false)
+		return errors.New("cannot init decoder " + err.Error())
 	}

 	// 3. Authentication
 	if _, err := fmt.Fprintf(conn, "<handshake>%s</handshake>", c.handshake(streamId)); err != nil {
-		c.updateState(StateStreamError)
-		return NewConnError(errors.New("cannot send handshake "+err.Error()), false)
+		return errors.New("cannot send handshake " + err.Error())
 	}

 	// 4. Check server response for authentication
 	val, err := stanza.NextPacket(c.decoder)
 	if err != nil {
-		c.updateState(StateDisconnected)
-		return NewConnError(err, true)
+		return err
 	}

 	switch v := val.(type) {
 	case stanza.StreamError:
-		c.streamError("conflict", "no auth loop")
-		return NewConnError(errors.New("handshake failed "+v.Error.Local), true)
+		return errors.New("handshake failed " + v.Error.Local)
 	case stanza.Handshake:
 		// Start the receiver go routine
-		c.updateState(StateSessionEstablished)
 		go c.recv()
 		return nil
 	default:
-		c.updateState(StateStreamError)
-		return NewConnError(errors.New("expecting handshake result, got "+v.Name()), true)
+		return errors.New("expecting handshake result, got " + v.Name())
 	}
 }

 func (c *Component) Disconnect() {
 	_ = c.SendRaw("</stream:stream>")
 	// TODO: Add a way to wait for stream close acknowledgement from the server for clean disconnect
-	conn := c.conn
-	if conn != nil {
-		_ = conn.Close()
-	}
+	_ = c.conn.Close()
 }

 func (c *Component) SetHandler(handler EventHandler) {
--- a/component_test.go
+++ b/component_test.go
@@ -23,10 +23,3 @@ func TestHandshake(t *testing.T) {
 func TestGenerateHandshake(t *testing.T) {
 	// TODO
 }
-
-// Test that NewStreamManager can accept a Component.
-//
-// This validates that Component conforms to StreamClient interface.
-func TestStreamManager(t *testing.T) {
-	NewStreamManager(&Component{}, nil)
-}
--- a/config.go
+++ b/config.go
@@ -1,7 +1,6 @@
 package xmpp

 import (
-	"crypto/tls"
 	"io"
 	"os"
 )
@@ -14,9 +13,6 @@ type Config struct {
 	StreamLogger   *os.File // Used for debugging
 	Lang           string   // TODO: should default to 'en'
 	ConnectTimeout int      // Client timeout in seconds. Default to 15
-	// tls.Config must not be modified after having been passed to NewClient. The
-	// Client connect method may override the tls.Config.ServerName if it was not set.
-	TLSConfig *tls.Config
 	// 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
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,6 @@ module gosrc.io/xmpp
 go 1.12

 require (
-	github.com/google/go-cmp v0.3.0
-	golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7
+	github.com/google/go-cmp v0.2.0
+	golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522
 )
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,4 @@
-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 v0.2.0 h1:+dTQ8DZQJz0Mb/HjFlkptS1FeQ4cWSnN941F8aEG4SQ=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522 h1:bhOzK9QyoD0ogCnFro1m2mz41+Ib0oOhfJnBp5MR4K4=
 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=
--- a/router.go
+++ b/router.go
@@ -98,7 +98,7 @@ type Handler interface {
 type Route struct {
 	handler Handler
 	// Matchers are used to "specialize" routes and focus on specific packet features
-	matchers []Matcher
+	matchers []matcher
 }

 func (r *Route) Handler(handler Handler) *Route {
@@ -122,8 +122,8 @@ func (r *Route) HandlerFunc(f HandlerFunc) *Route {
 	return r.Handler(f)
 }

-// AddMatcher adds a matcher to the route
-func (r *Route) AddMatcher(m Matcher) *Route {
+// addMatcher adds a matcher to the route
+func (r *Route) addMatcher(m matcher) *Route {
 	r.matchers = append(r.matchers, m)
 	return r
 }
@@ -170,7 +170,7 @@ func (n nameMatcher) Match(p stanza.Packet, match *RouteMatch) bool {
 // It matches on the Local part of the xml.Name
 func (r *Route) Packet(name string) *Route {
 	name = strings.ToLower(name)
-	return r.AddMatcher(nameMatcher(name))
+	return r.addMatcher(nameMatcher(name))
 }

 // -------------------------
@@ -204,7 +204,7 @@ func (r *Route) StanzaType(types ...string) *Route {
 	for k, v := range types {
 		types[k] = strings.ToLower(v)
 	}
-	return r.AddMatcher(nsTypeMatcher(types))
+	return r.addMatcher(nsTypeMatcher(types))
 }

 // -------------------------
@@ -229,15 +229,14 @@ func (r *Route) IQNamespaces(namespaces ...string) *Route {
 	for k, v := range namespaces {
 		namespaces[k] = strings.ToLower(v)
 	}
-	return r.AddMatcher(nsIQMatcher(namespaces))
+	return r.addMatcher(nsIQMatcher(namespaces))
 }

 // ============================================================================
 // Matchers

-// Matchers are used to "specialize" routes and focus on specific packet features.
-// You can register attach them to a route via the AddMatcher method.
-type Matcher interface {
+// Matchers are used to "specialize" routes and focus on specific packet features
+type matcher interface {
 	Match(stanza.Packet, *RouteMatch) bool
 }

--- a/session.go
+++ b/session.go
@@ -17,7 +17,6 @@ type Session struct {
 	// Session info
 	BindJid      string // Jabber ID as provided by XMPP server
 	StreamId     string
-	SMState      SMState
 	Features     stanza.StreamFeatures
 	TlsEnabled   bool
 	lastPacketId int
@@ -30,44 +29,29 @@ type Session struct {
 	err error
 }

-func NewSession(conn net.Conn, o Config, state SMState) (net.Conn, *Session, error) {
+func NewSession(conn net.Conn, o Config) (net.Conn, *Session, error) {
 	s := new(Session)
-	s.SMState = state
 	s.init(conn, o)

 	// starttls
 	var tlsConn net.Conn
-	tlsConn = s.startTlsIfSupported(conn, o.parsedJid.Domain, o)
-
-	if s.err != nil {
-		return nil, nil, NewConnError(s.err, true)
+	tlsConn = s.startTlsIfSupported(conn, o.parsedJid.Domain)
+	if s.TlsEnabled {
+		s.reset(conn, tlsConn, o)
 	}

 	if !s.TlsEnabled && !o.Insecure {
-		err := fmt.Errorf("failed to negotiate TLS session : %s", s.err)
-		return nil, nil, NewConnError(err, true)
-	}
-
-	if s.TlsEnabled {
-		s.reset(conn, tlsConn, o)
+		return nil, nil, NewConnError(errors.New("failed to negotiate TLS session"), true)
 	}

 	// auth
 	s.auth(o)
 	s.reset(tlsConn, tlsConn, o)

-	// attempt resumption
-	if s.resume(o) {
-		return tlsConn, s, s.err
-	}
-
-	// otherwise, bind resource and 'start' XMPP session
+	// bind resource and 'start' XMPP session
 	s.bind(o)
 	s.rfc3921Session(o)

-	// Enable stream management if supported
-	s.EnableStreamManagement(o)
-
 	return tlsConn, s, s.err
 }

@@ -117,7 +101,7 @@ func (s *Session) open(domain string) (f stanza.StreamFeatures) {
 	return
 }

-func (s *Session) startTlsIfSupported(conn net.Conn, domain string, o Config) net.Conn {
+func (s *Session) startTlsIfSupported(conn net.Conn, domain string) net.Conn {
 	if s.err != nil {
 		return conn
 	}
@@ -130,35 +114,21 @@ func (s *Session) startTlsIfSupported(conn net.Conn, domain string, o Config) ne
 			s.err = errors.New("expecting starttls proceed: " + s.err.Error())
 			return conn
 		}
+		s.TlsEnabled = true

-		if o.TLSConfig == nil {
-			o.TLSConfig = &tls.Config{}
-		}
-
-		if o.TLSConfig.ServerName == "" {
-			o.TLSConfig.ServerName = domain
-		}
-		tlsConn := tls.Client(conn, o.TLSConfig)
+		// TODO: add option to accept all TLS certificates: insecureSkipTlsVerify (DefaultTlsConfig.InsecureSkipVerify)
+		stanza.DefaultTlsConfig.ServerName = domain
+		tlsConn := tls.Client(conn, &stanza.DefaultTlsConfig)
 		// We convert existing connection to TLS
 		if s.err = tlsConn.Handshake(); s.err != nil {
 			return tlsConn
 		}

-		if !o.TLSConfig.InsecureSkipVerify {
-			s.err = tlsConn.VerifyHostname(domain)
-		}
-
-		if s.err == nil {
-			s.TlsEnabled = true
-		}
+		// We check that cert matches hostname
+		s.err = tlsConn.VerifyHostname(domain)
 		return tlsConn
 	}

-	// If we do not allow cleartext connections, make it explicit that server do not support starttls
-	if !o.Insecure {
-		s.err = errors.New("XMPP server does not advertise support for starttls")
-	}
-
 	// starttls is not supported => we do not upgrade the connection:
 	return conn
 }
@@ -171,38 +141,6 @@ func (s *Session) auth(o Config) {
 	s.err = authSASL(s.streamLogger, s.decoder, s.Features, o.parsedJid.Node, o.Password)
 }

-// Attempt to resume session using stream management
-func (s *Session) resume(o Config) bool {
-	if !s.Features.DoesStreamManagement() {
-		return false
-	}
-	if s.SMState.Id == "" {
-		return false
-	}
-
-	fmt.Fprintf(s.streamLogger, "<resume xmlns='%s' h='%d' previd='%s'/>",
-		stanza.NSStreamManagement, s.SMState.Inbound, s.SMState.Id)
-
-	var packet stanza.Packet
-	packet, s.err = stanza.NextPacket(s.decoder)
-	if s.err == nil {
-		switch p := packet.(type) {
-		case stanza.SMResumed:
-			if p.PrevId != s.SMState.Id {
-				s.err = errors.New("session resumption: mismatched id")
-				s.SMState = SMState{}
-				return false
-			}
-			return true
-		case stanza.SMFailed:
-		default:
-			s.err = errors.New("unexpected reply to SM resume")
-		}
-	}
-	s.SMState = SMState{}
-	return false
-}
-
 func (s *Session) bind(o Config) {
 	if s.err != nil {
 		return
@@ -250,30 +188,3 @@ func (s *Session) rfc3921Session(o Config) {
 		}
 	}
 }
-
-// Enable stream management, with session resumption, if supported.
-func (s *Session) EnableStreamManagement(o Config) {
-	if s.err != nil {
-		return
-	}
-	if !s.Features.DoesStreamManagement() {
-		return
-	}
-
-	fmt.Fprintf(s.streamLogger, "<enable xmlns='%s' resume='true'/>", stanza.NSStreamManagement)
-
-	var packet stanza.Packet
-	packet, s.err = stanza.NextPacket(s.decoder)
-	if s.err == nil {
-		switch p := packet.(type) {
-		case stanza.SMEnabled:
-			s.SMState = SMState{Id: p.Id}
-		case stanza.SMFailed:
-			// TODO: Store error in SMState, for later inspection
-		default:
-			s.err = errors.New("unexpected reply to SM enable")
-		}
-	}
-
-	return
-}
--- a/stanza/error_test.go
+++ b/stanza/error_test.go
@@ -1,31 +0,0 @@
-package stanza
-
-import (
-	"encoding/xml"
-	"testing"
-)
-
-func TestErr_UnmarshalXML(t *testing.T) {
-	packet := `
- <iq from='pubsub.example.com'
-       id='kj4vz31m'
-       to='romeo@example.net/foo'
-       type='error'>
-  <error type='wait'>
-    <resource-constraint
-        xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
-    <text xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>System overloaded, please retry</text>
-  </error>
- </iq>`
-
-	parsedIQ := IQ{}
-	data := []byte(packet)
-	if err := xml.Unmarshal(data, &parsedIQ); err != nil {
-		t.Errorf("Unmarshal(%s) returned error", data)
-	}
-
-	xmppError := parsedIQ.Error
-	if xmppError.Text != "System overloaded, please retry" {
-		t.Errorf("Could not extract error text: '%s'", xmppError.Text)
-	}
-}
--- a/stanza/iot_test.go
+++ b/stanza/iot_test.go
@@ -21,6 +21,6 @@ func TestControlSet(t *testing.T) {
 	}

 	if cs, ok := parsedIQ.Payload.(*ControlSet); !ok {
-		t.Errorf("Payload is not an iot control set: %v", cs)
+		t.Errorf("Paylod is not an iot control set: %v", cs)
 	}
 }
--- a/stanza/iq.go
+++ b/stanza/iq.go
@@ -2,6 +2,7 @@ package stanza

 import (
 	"encoding/xml"
+	"fmt"
 )

 /*
@@ -22,7 +23,7 @@ type IQ struct { // Info/Query
 	//    request."
 	Payload IQPayload `xml:",omitempty"`
 	Error   Err       `xml:"error,omitempty"`
-	// Any is used to decode unknown payload as a generic structure
+	// Any is used to decode unknown payload as a generique structure
 	Any *Node `xml:",any"`
 }

@@ -98,6 +99,7 @@ func (iq *IQ) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
 				var xmppError Err
 				err = d.DecodeElement(&xmppError, &tt)
 				if err != nil {
+					fmt.Println(err)
 					return err
 				}
 				iq.Error = xmppError
--- a/stanza/node.go
+++ b/stanza/node.go
@@ -10,7 +10,7 @@ import "encoding/xml"
 type Node struct {
 	XMLName xml.Name
 	Attrs   []xml.Attr `xml:"-"`
-	Content string     `xml:",cdata"`
+	Content string     `xml:",innerxml"`
 	Nodes   []Node     `xml:",any"`
 }

@@ -47,8 +47,5 @@ func (n Node) MarshalXML(e *xml.Encoder, start xml.StartElement) (err error) {

 	err = e.EncodeToken(start)
 	e.EncodeElement(n.Nodes, xml.StartElement{Name: n.XMLName})
-	if n.Content != "" {
-		e.EncodeToken(xml.CharData(n.Content))
-	}
 	return e.EncodeToken(xml.EndElement{Name: start.Name})
 }
--- a/stanza/node_test.go
+++ b/stanza/node_test.go
@@ -1,30 +0,0 @@
-package stanza
-
-import (
-	"encoding/xml"
-	"testing"
-)
-
-func TestNode_Marshal(t *testing.T) {
-	jsonData := []byte("{\"key\":\"value\"}")
-
-	iqResp := NewIQ(Attrs{Type: "result", From: "admin@localhost", To: "test@localhost", Id: "1"})
-	iqResp.Any = &Node{
-		XMLName: xml.Name{Space: "myNS", Local: "space"},
-		Content: string(jsonData),
-	}
-
-	bytes, err := xml.Marshal(iqResp)
-	if err != nil {
-		t.Errorf("Could not marshal XML: %v", err)
-	}
-
-	parsedIQ := IQ{}
-	if err := xml.Unmarshal(bytes, &parsedIQ); err != nil {
-		t.Errorf("Unmarshal returned error: %v", err)
-	}
-
-	if parsedIQ.Any.Content != string(jsonData) {
-		t.Errorf("Cannot find generic any payload in parsedIQ: '%s'", parsedIQ.Any.Content)
-	}
-}
--- a/stanza/parser.go
+++ b/stanza/parser.go
@@ -63,8 +63,6 @@ func NextPacket(p *xml.Decoder) (Packet, error) {
 		return decodeClient(p, se)
 	case NSComponent:
 		return decodeComponent(p, se)
-	case NSStreamManagement:
-		return sm.decode(p, se)
 	default:
 		return nil, errors.New("unknown namespace " +
 			se.Name.Space + " <" + se.Name.Local + "/>")
@@ -135,7 +133,7 @@ func decodeClient(p *xml.Decoder, se xml.StartElement) (Packet, error) {
 	}
 }

-// decodeComponent decodes all known packets in the component namespace.
+// decodeClient decodes all known packets in the component namespace.
 func decodeComponent(p *xml.Decoder, se xml.StartElement) (Packet, error) {
 	switch se.Name.Local {
 	case "handshake": // handshake is used to authenticate components
--- a/stanza/starttls.go
+++ b/stanza/starttls.go
@@ -1,9 +1,12 @@
 package stanza

 import (
+	"crypto/tls"
 	"encoding/xml"
 )

+var DefaultTlsConfig tls.Config
+
 // Used during stream initiation / session establishment
 type TLSProceed struct {
 	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:xmpp-tls proceed"`
--- a/stanza/stream_management.go
+++ b/stanza/stream_management.go
@@ -1,121 +0,0 @@
-package stanza
-
-import (
-	"encoding/xml"
-	"errors"
-)
-
-const (
-	NSStreamManagement = "urn:xmpp:sm:3"
-)
-
-// Enabled as defined in Stream Management spec
-// Reference: https://xmpp.org/extensions/xep-0198.html#enable
-type SMEnabled struct {
-	XMLName  xml.Name `xml:"urn:xmpp:sm:3 enabled"`
-	Id       string   `xml:"id,attr,omitempty"`
-	Location string   `xml:"location,attr,omitempty"`
-	Resume   string   `xml:"resume,attr,omitempty"`
-	Max      uint     `xml:"max,attr,omitempty"`
-}
-
-func (SMEnabled) Name() string {
-	return "Stream Management: enabled"
-}
-
-// Request as defined in Stream Management spec
-// Reference: https://xmpp.org/extensions/xep-0198.html#acking
-type SMRequest struct {
-	XMLName xml.Name `xml:"urn:xmpp:sm:3 r"`
-}
-
-func (SMRequest) Name() string {
-	return "Stream Management: request"
-}
-
-// Answer as defined in Stream Management spec
-// 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"`
-}
-
-func (SMAnswer) Name() string {
-	return "Stream Management: answer"
-}
-
-// Resumed as defined in Stream Management spec
-// Reference: https://xmpp.org/extensions/xep-0198.html#acking
-type SMResumed struct {
-	XMLName xml.Name `xml:"urn:xmpp:sm:3 resumed"`
-	PrevId  string   `xml:"previd,attr,omitempty"`
-	H       uint     `xml:"h,attr,omitempty"`
-}
-
-func (SMResumed) Name() string {
-	return "Stream Management: resumed"
-}
-
-// 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).
-}
-
-func (SMFailed) Name() string {
-	return "Stream Management: failed"
-}
-
-type smDecoder struct{}
-
-var sm smDecoder
-
-// decode decodes all known nonza in the stream management namespace.
-func (s smDecoder) decode(p *xml.Decoder, se xml.StartElement) (Packet, error) {
-	switch se.Name.Local {
-	case "enabled":
-		return s.decodeEnabled(p, se)
-	case "resumed":
-		return s.decodeResumed(p, se)
-	case "r":
-		return s.decodeRequest(p, se)
-	case "h":
-		return s.decodeAnswer(p, se)
-	case "failed":
-		return s.decodeFailed(p, se)
-	default:
-		return nil, errors.New("unexpected XMPP packet " +
-			se.Name.Space + " <" + se.Name.Local + "/>")
-	}
-}
-
-func (smDecoder) decodeEnabled(p *xml.Decoder, se xml.StartElement) (SMEnabled, error) {
-	var packet SMEnabled
-	err := p.DecodeElement(&packet, &se)
-	return packet, err
-}
-
-func (smDecoder) decodeResumed(p *xml.Decoder, se xml.StartElement) (SMResumed, error) {
-	var packet SMResumed
-	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)
-	return packet, err
-}
-
-func (smDecoder) decodeAnswer(p *xml.Decoder, se xml.StartElement) (SMAnswer, error) {
-	var packet SMAnswer
-	err := p.DecodeElement(&packet, &se)
-	return packet, err
-}
-
-func (smDecoder) decodeFailed(p *xml.Decoder, se xml.StartElement) (SMFailed, error) {
-	var packet SMFailed
-	err := p.DecodeElement(&packet, &se)
-	return packet, err
-}
--- a/stream_manager.go
+++ b/stream_manager.go
@@ -24,7 +24,6 @@ import (
 // set callback and trigger reconnection.
 type StreamClient interface {
 	Connect() error
-	Resume(state SMState) error
 	Send(packet stanza.Packet) error
 	SendRaw(packet string) error
 	Disconnect()
@@ -79,7 +78,7 @@ func (sm *StreamManager) Run() error {
 			sm.Metrics.setLoginTime()
 		case StateDisconnected:
 			// Reconnect on disconnection
-			sm.resume(e.SMState)
+			sm.connect()
 		case StateStreamError:
 			sm.client.Disconnect()
 			// Only try reconnecting if we have not been kicked by another session to avoid connection loop.
@@ -107,13 +106,8 @@ func (sm *StreamManager) Stop() {
 	sm.wg.Done()
 }

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

 	for {
@@ -121,11 +115,11 @@ func (sm *StreamManager) resume(state SMState) 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.Connect(); err != nil {
 			var actualErr ConnError
 			if xerrors.As(err, &actualErr) {
 				if actualErr.Permanent {
-					return xerrors.Errorf("unrecoverable connect error %#v", actualErr)
+					return xerrors.Errorf("unrecoverable connect error %w", actualErr)
 				}
 			}
 			backoff.wait()
@@ -152,7 +146,7 @@ type Metrics struct {
 	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
+	// This includes ConnectTime, but also XMPP level protocol negociation
 	// like starttls.
 	LoginTime time.Duration
 }
Author	SHA1	Message	Date
Mickael Remond	5c76c9c0a0	Simplify disco with builder helpers	2019-07-09 18:09:23 +02:00
Mickael Remond	0b0c0fa5ab	Simplify disco and software version Make use of helpers.	2019-07-09 18:05:26 +02:00
Mickael Remond	6872ed8d1b	Add builder & test on software version helpers	2019-07-09 17:53:49 +02:00
Mickael Remond	0e3101c2be	Expand comments	2019-07-09 17:06:57 +02:00
Mickael Remond	026e5e6fe1	Add helpers for IQ DiscoItems	2019-07-09 16:59:54 +02:00