func (c *cliClient) Start() {
oldState, err := terminal.MakeRaw(0)
if err != nil {
panic(err.Error())
}
defer terminal.Restore(0, oldState)
signal.Notify(make(chan os.Signal), os.Interrupt)
wrapper, interruptChan := NewTerminalWrapper(os.Stdin)
wrapper.SetErrorOnInterrupt(true)
c.interrupt = interruptChan
c.termWrapper = wrapper
c.term = terminal.NewTerminal(wrapper, "> ")
if width, height, err := terminal.GetSize(0); err == nil {
c.term.SetSize(width, height)
}
c.loadUI()
if c.writerChan != nil {
c.save()
}
if c.writerChan != nil {
close(c.writerChan)
<-c.writerDone
}
if c.fetchNowChan != nil {
close(c.fetchNowChan)
}
if c.stateLock != nil {
c.stateLock.Close()
}
}
func handleSshConnection(sConn *ssh.ServerConn,
msgchan chan<- text.Message, addchan chan<- Client, rmchan chan<- net.Conn) {
defer sConn.Close()
for {
ch, err := sConn.Accept()
if err == io.EOF {
return
}
if err != nil {
log.Println("handleServerConn Accept:", err)
break
}
if ch.ChannelType() != "session" {
ch.Reject(ssh.UnknownChannelType, "unknown channel type")
break
}
log.Println("Client version:", string(sConn.ClientVersion))
// Create terminal
term := terminal.NewTerminal(ch, "")
serverTerm := &ssh.ServerTerminal{
Term: term,
Channel: ch,
}
ch.Accept()
go handleConnection(sConn, serverTerm, term, msgchan, addchan, rmchan)
}
}
func newServerShell(ch *serverChan, prompt string) *ServerTerminal {
term := terminal.NewTerminal(ch, prompt)
return &ServerTerminal{
Term: term,
Channel: ch,
}
}
func newTerm() Term {
u := new(uterm)
var err error
u.s, err = terminal.MakeRaw(0)
if err != nil {
panic(err)
}
u.t = terminal.NewTerminal(os.Stdin, "lixian >> ")
return u
}
func handleUser(sConn *ssh.ServerConn) {
if err := sConn.Handshake(); err != nil {
fmt.Printf("failed to handshake\n")
return
}
// A ServerConn multiplexes several channels, which must
// themselves be Accepted.
for {
// Accept reads from the connection, demultiplexes packets
// to their corresponding channels and returns when a new
// channel request is seen. Some goroutine must always be
// calling Accept; otherwise no messages will be forwarded
// to the channels.
channel, err := sConn.Accept()
if err != nil {
fmt.Printf("error from Accept\n")
return
}
// Channels have a type, depending on the application level
// protocol intended. In the case of a shell, the type is
// "session" and ServerShell may be used to present a simple
// terminal interface.
if channel.ChannelType() != "session" {
channel.Reject(ssh.UnknownChannelType, "unknown channel type")
continue
}
channel.Accept()
term := terminal.NewTerminal(channel, "> ")
serverTerm := &ssh.ServerTerminal{
Term: term,
Channel: channel,
}
go func() {
defer channel.Close()
for {
line, err := serverTerm.ReadLine()
if err != nil {
break
}
fmt.Println(line)
}
}()
}
}
func HandleConnection(listener net.Listener) {
for {
nConn, err := listener.Accept()
go func() {
if err != nil {
panic("failed to accept incoming connection")
}
// Before use, a handshake must be performed on the incoming
// net.Conn.
_, chans, _, err := ssh.NewServerConn(nConn, config)
if err == io.EOF {
return
}
if err != nil {
logfile.Printf("Handshake error: %s", err)
}
for newChannel := range chans {
channel, requests, err := newChannel.Accept()
if err != nil {
logfile.Println("[fatal] could not accept channel.")
continue
}
var term *terminal.Terminal
term = terminal.NewTerminal(channel, "")
go HandleSshRequests(channel, requests, term)
logfile.Println("[channelType]: " + newChannel.ChannelType())
//newChannel.Reject(ssh.ConnectionFailed, "")
// Sessions have out-of-band requests such as "shell",
// "pty-req" and "env".
if newChannel.ChannelType() == "direct-tcpip" {
http_request := make(map[string]string)
HandleTcpReading(channel, term, http_request)
go SaveHttpRequest(http_request)
} else {
go HandleTerminalReading(channel, term)
}
}
}()
}
}
func handleChannel(ch ssh.Channel) {
term := terminal.NewTerminal(ch, "> ")
serverTerm := &ssh.ServerTerminal{
Term: term,
Channel: ch,
}
ch.Accept()
defer ch.Close()
for {
line, err := serverTerm.ReadLine()
if err == io.EOF {
return
}
if err != nil {
log.Println("handleChannel readLine err:", err)
continue
}
fmt.Println(line)
}
}
// NewStartedQShell returns an initialized QShell, ready to Interact() with.
// Prints mongo startup message.
func NewStartedQShell(driver *strata.Driver, mountPath string, showSize bool, mongodPath, mongoPath string) (*QShell, error) {
finished := false
sh := QShell{driver: driver, mountPath: mountPath, showSize: showSize, mongodPath: mongodPath, mongoPath: mongoPath}
// Put terminal in raw mode
var err error
sh.stdinFd = int(os.Stdin.Fd())
sh.oldState, err = terminal.MakeRaw(sh.stdinFd)
if err != nil {
return &sh, err
}
// Convention seems to be that caller invokes Close() only if there is no error.
// But we need to clean up if there is an error.
defer func() {
if !finished {
sh.Close()
}
}()
sh.term = terminal.NewTerminal(&readerWriter{r: os.Stdin, w: os.Stdout}, "\r> ")
sh.mongoStateHolder, err = newMongoStateHolder(sh.mongoPath)
if err != nil {
return &sh, err
}
if err := sh.print("Wrapper around MongoDB shell with additional commands for querying backups.\n"); err != nil {
return &sh, err
}
if err := sh.printMongoOutput(true); err != nil {
return &sh, err
}
finished = true
return &sh, nil
}
func main() {
w := eval.NewWorld()
w.DefineVar("connect", eval.NewFuncType([]eval.Type{}, false, []eval.Type{}), &funcV{&testFunc{}})
fmt.Println(":: welcome to go-eval...\n(hit ^D to exit)")
fd := int(os.Stdin.Fd())
oldState, err := terminal.MakeRaw(fd)
if err != nil {
panic(err)
}
defer terminal.Restore(fd, oldState)
term := terminal.NewTerminal(&shell{r: os.Stdin, w: os.Stdout}, "> ")
if term == nil {
panic(errors.New("could not create terminal"))
}
for {
line, err := term.ReadLine()
if err != nil {
break
}
code, err := w.Compile(fset, line)
if err != nil {
term.Write([]byte(err.Error() + "\n"))
continue
}
v, err := code.Run()
if err != nil {
term.Write([]byte(err.Error() + "\n"))
continue
}
if v != nil {
term.Write([]byte(v.String() + "\n"))
}
}
}
func ExampleNewServerConn() {
// An SSH server is represented by a ServerConfig, which holds
// certificate details and handles authentication of ServerConns.
config := &ServerConfig{
PasswordCallback: func(c ConnMetadata, pass []byte) (*Permissions, error) {
// Should use constant-time compare (or better, salt+hash) in
// a production setting.
if c.User() == "testuser" && string(pass) == "tiger" {
return nil, nil
}
return nil, fmt.Errorf("password rejected for %q", c.User())
},
}
privateBytes, err := ioutil.ReadFile("id_rsa")
if err != nil {
panic("Failed to load private key")
}
private, err := ParsePrivateKey(privateBytes)
if err != nil {
panic("Failed to parse private key")
}
config.AddHostKey(private)
// Once a ServerConfig has been configured, connections can be
// accepted.
listener, err := net.Listen("tcp", "0.0.0.0:2022")
if err != nil {
panic("failed to listen for connection")
}
nConn, err := listener.Accept()
if err != nil {
panic("failed to accept incoming connection")
}
// Before use, a handshake must be performed on the incoming
// net.Conn.
_, chans, reqs, err := NewServerConn(nConn, config)
if err != nil {
panic("failed to handshake")
}
// The incoming Request channel must be serviced.
go DiscardRequests(reqs)
// Service the incoming Channel channel.
for newChannel := range chans {
// Channels have a type, depending on the application level
// protocol intended. In the case of a shell, the type is
// "session" and ServerShell may be used to present a simple
// terminal interface.
if newChannel.ChannelType() != "session" {
newChannel.Reject(UnknownChannelType, "unknown channel type")
continue
}
channel, requests, err := newChannel.Accept()
if err != nil {
panic("could not accept channel.")
}
// Sessions have out-of-band requests such as "shell",
// "pty-req" and "env". Here we handle only the
// "shell" request.
go func(in <-chan *Request) {
for req := range in {
ok := false
switch req.Type {
case "shell":
ok = true
if len(req.Payload) > 0 {
// We don't accept any
// commands, only the
// default shell.
ok = false
}
}
req.Reply(ok, nil)
}
}(requests)
term := terminal.NewTerminal(channel, "> ")
go func() {
defer channel.Close()
for {
line, err := term.ReadLine()
if err != nil {
break
}
fmt.Println(line)
}
}()
}
}
func main() {
// An SSH server is represented by a ServerConfig, which holds
// certificate details and handles authentication of ServerConns.
config := &ssh.ServerConfig{
PasswordCallback: func(conn *ssh.ServerConn, user, pass string) bool {
return user == "testuser" && pass == "tiger"
},
}
privateBytes, err := ioutil.ReadFile("id_rsa")
if err != nil {
panic("Failed to load private key")
}
private, err := ssh.ParsePrivateKey(privateBytes)
if err != nil {
panic("Failed to parse private key")
}
config.AddHostKey(private)
// Once a ServerConfig has been configured, connections can be
// accepted.
listener, err := ssh.Listen("tcp", "0.0.0.0:2022", config)
if err != nil {
panic("failed to listen for connection")
}
sConn, err := listener.Accept()
if err != nil {
panic("failed to accept incoming connection")
}
if err := sConn.Handshake(); err != nil {
panic("failed to handshake")
}
// A ServerConn multiplexes several channels, which must
// themselves be Accepted.
for {
// Accept reads from the connection, demultiplexes packets
// to their corresponding channels and returns when a new
// channel request is seen. Some goroutine must always be
// calling Accept; otherwise no messages will be forwarded
// to the channels.
channel, err := sConn.Accept()
if err != nil {
panic("error from Accept")
}
// Channels have a type, depending on the application level
// protocol intended. In the case of a shell, the type is
// "session" and ServerShell may be used to present a simple
// terminal interface.
if channel.ChannelType() != "session" {
channel.Reject(ssh.UnknownChannelType, "unknown channel type")
continue
}
channel.Accept()
term := terminal.NewTerminal(channel, "> ")
serverTerm := &ssh.ServerTerminal{
Term: term,
Channel: channel,
}
go func() {
defer channel.Close()
for {
line, err := serverTerm.ReadLine()
if err != nil {
break
}
fmt.Println(line)
}
}()
}
}
func main() {
println("starting ssh server...")
err := envconfig.Process("wormhole", &appConfig)
if err != nil {
log.Fatal(err.Error())
}
if appConfig.LocalSSHAddr == "" || appConfig.PrivateKeyPath == "" ||
appConfig.RemoteSSHAddr == "" || appConfig.RemoteForwardAddress == "" ||
appConfig.RemoteSSHUser == "" || appConfig.RemotePrivateKeyPath == "" {
fmt.Println("Missing config")
os.Exit(-1)
}
// An SSH server is represented by a ServerConfig, which holds
// certificate details and handles authentication of ServerConns.
config := &ssh.ServerConfig{
PasswordCallback: func(c ssh.ConnMetadata, pass []byte) (*ssh.Permissions, error) {
// Should use constant-time compare (or better, salt+hash) in
// a production setting.
if c.User() == "testuser" && string(pass) == "" {
return nil, nil
}
return nil, fmt.Errorf("password rejected for %q", c.User())
},
}
privateBytes, err := ioutil.ReadFile(appConfig.PrivateKeyPath)
if err != nil {
panic("Failed to load private key")
}
private, err := ssh.ParsePrivateKey(privateBytes)
if err != nil {
panic("Failed to parse private key")
}
config.AddHostKey(private)
// Once a ServerConfig has been configured, connections can be
// accepted.
listener, err := net.Listen("tcp", appConfig.LocalSSHAddr)
if err != nil {
panic("failed to listen for connection")
}
for {
nConn, err := listener.Accept()
if err != nil {
panic("failed to accept incoming connection")
}
conn, chans, reqs, err := ssh.NewServerConn(nConn, config)
if err != nil {
panic("failed to handshake")
}
go processRequests(conn, reqs)
for newChannel := range chans {
if newChannel.ChannelType() != "session" {
newChannel.Reject(ssh.UnknownChannelType, "unknown channel type")
continue
}
channel, requests, err := newChannel.Accept()
if err != nil {
panic("could not accept channel.")
}
go func(in <-chan *ssh.Request) {
for req := range in {
ok := false
switch req.Type {
case "shell":
ok = true
if len(req.Payload) > 0 {
ok = false
}
}
req.Reply(ok, nil)
}
}(requests)
term := terminal.NewTerminal(channel, "> ")
go func() {
defer channel.Close()
for {
_, err := term.ReadLine()
if err != nil {
break
}
}
}()
}
}
}
func newServerShell(ch Channel, in <-chan *Request, prompt string) *terminal.Terminal {
term := terminal.NewTerminal(ch, prompt)
go handleTerminalRequests(in)
return term
}
func main() {
flag.Parse()
oldState, err := terminal.MakeRaw(0)
if err != nil {
panic(err.Error())
}
defer terminal.Restore(0, oldState)
term := terminal.NewTerminal(os.Stdin, "> ")
updateTerminalSize(term)
resizeChan := make(chan os.Signal)
go func() {
for _ = range resizeChan {
updateTerminalSize(term)
}
}()
signal.Notify(resizeChan, syscall.SIGWINCH)
if len(*configFile) == 0 {
homeDir := os.Getenv("HOME")
if len(homeDir) == 0 {
alert(term, "$HOME not set. Please either export $HOME or use the -config-file option.\n")
return
}
persistentDir := filepath.Join(homeDir, "Persistent")
if stat, err := os.Lstat(persistentDir); err == nil && stat.IsDir() {
// Looks like Tails.
homeDir = persistentDir
}
*configFile = filepath.Join(homeDir, ".xmpp-client")
}
config, err := ParseConfig(*configFile)
if err != nil {
alert(term, "Failed to parse config file: "+err.Error())
config = new(Config)
if !enroll(config, term) {
return
}
config.filename = *configFile
config.Save()
}
password := config.Password
if len(password) == 0 {
if password, err = term.ReadPassword(fmt.Sprintf("Password for %s (will not be saved to disk): ", config.Account)); err != nil {
alert(term, "Failed to read password: "******"@", 2)
if len(parts) != 2 {
alert(term, "invalid username (want user@domain): "+config.Account)
return
}
user := parts[0]
domain := parts[1]
var addr string
addrTrusted := false
if len(config.Server) > 0 && config.Port > 0 {
addr = fmt.Sprintf("%s:%d", config.Server, config.Port)
addrTrusted = true
} else {
if len(config.Proxies) > 0 {
alert(term, "Cannot connect via a proxy without Server and Port being set in the config file as an SRV lookup would leak information.")
return
}
host, port, err := xmpp.Resolve(domain)
if err != nil {
alert(term, "Failed to resolve XMPP server: "+err.Error())
return
}
addr = fmt.Sprintf("%s:%d", host, port)
}
var dialer proxy.Dialer
for i := len(config.Proxies) - 1; i >= 0; i-- {
u, err := url.Parse(config.Proxies[i])
if err != nil {
alert(term, "Failed to parse "+config.Proxies[i]+" as a URL: "+err.Error())
return
}
if dialer == nil {
dialer = proxy.Direct
}
if dialer, err = proxy.FromURL(u, dialer); err != nil {
alert(term, "Failed to parse "+config.Proxies[i]+" as a proxy: "+err.Error())
return
}
}
var certSHA256 []byte
if len(config.ServerCertificateSHA256) > 0 {
certSHA256, err = hex.DecodeString(config.ServerCertificateSHA256)
if err != nil {
alert(term, "Failed to parse ServerCertificateSHA256 (should be hex string): "+err.Error())
return
}
if len(certSHA256) != 32 {
alert(term, "ServerCertificateSHA256 is not 32 bytes long")
return
}
}
xmppConfig := &xmpp.Config{
Log: &lineLogger{term, nil},
Create: *createAccount,
TrustedAddress: addrTrusted,
Archive: false,
ServerCertificateSHA256: certSHA256,
}
if len(config.RawLogFile) > 0 {
rawLog, err := os.OpenFile(config.RawLogFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0600)
if err != nil {
alert(term, "Failed to open raw log file: "+err.Error())
return
}
lock := new(sync.Mutex)
in := rawLogger{
out: rawLog,
prefix: []byte("<- "),
lock: lock,
}
out := rawLogger{
out: rawLog,
prefix: []byte("-> "),
lock: lock,
}
in.other, out.other = &out, &in
xmppConfig.InLog = &in
xmppConfig.OutLog = &out
defer in.flush()
defer out.flush()
}
if dialer != nil {
info(term, "Making connection to "+addr+" via proxy")
if xmppConfig.Conn, err = dialer.Dial("tcp", addr); err != nil {
alert(term, "Failed to connect via proxy: "+err.Error())
return
}
}
conn, err := xmpp.Dial(addr, user, domain, password, xmppConfig)
if err != nil {
alert(term, "Failed to connect to XMPP server: "+err.Error())
return
}
s := Session{
account: config.Account,
conn: conn,
term: term,
conversations: make(map[string]*otr.Conversation),
knownStates: make(map[string]string),
privateKey: new(otr.PrivateKey),
config: config,
pendingRosterChan: make(chan *rosterEdit),
pendingSubscribes: make(map[string]string),
lastActionTime: time.Now(),
}
info(term, "Fetching roster")
//var rosterReply chan xmpp.Stanza
rosterReply, _, err := s.conn.RequestRoster()
if err != nil {
alert(term, "Failed to request roster: "+err.Error())
return
}
conn.SignalPresence("")
s.input = Input{
term: term,
uidComplete: new(priorityList),
}
commandChan := make(chan interface{})
go s.input.ProcessCommands(commandChan)
stanzaChan := make(chan xmpp.Stanza)
go s.readMessages(stanzaChan)
s.privateKey.Parse(config.PrivateKey)
s.timeouts = make(map[xmpp.Cookie]time.Time)
info(term, fmt.Sprintf("Your fingerprint is %x", s.privateKey.Fingerprint()))
ticker := time.NewTicker(1 * time.Second)
MainLoop:
for {
select {
case now := <-ticker.C:
haveExpired := false
for _, expiry := range s.timeouts {
if now.After(expiry) {
haveExpired = true
break
}
}
if !haveExpired {
continue
}
newTimeouts := make(map[xmpp.Cookie]time.Time)
for cookie, expiry := range s.timeouts {
if now.After(expiry) {
s.conn.Cancel(cookie)
} else {
newTimeouts[cookie] = expiry
}
}
s.timeouts = newTimeouts
case edit := <-s.pendingRosterChan:
if !edit.isComplete {
info(s.term, "Please edit "+edit.fileName+" and run /rostereditdone when complete")
s.pendingRosterEdit = edit
continue
}
if s.processEditedRoster(edit) {
s.pendingRosterEdit = nil
} else {
alert(s.term, "Please reedit file and run /rostereditdone again")
}
case rosterStanza, ok := <-rosterReply:
if !ok {
alert(s.term, "Failed to read roster: "+err.Error())
return
}
if s.roster, err = xmpp.ParseRoster(rosterStanza); err != nil {
alert(s.term, "Failed to parse roster: "+err.Error())
return
}
for _, entry := range s.roster {
s.input.AddUser(entry.Jid)
}
info(s.term, "Roster received")
case cmd, ok := <-commandChan:
if !ok {
warn(term, "Exiting because command channel closed")
break MainLoop
}
s.lastActionTime = time.Now()
switch cmd := cmd.(type) {
case quitCommand:
for to, conversation := range s.conversations {
msgs := conversation.End()
for _, msg := range msgs {
s.conn.Send(to, string(msg))
}
}
break MainLoop
case versionCommand:
replyChan, cookie, err := s.conn.SendIQ(cmd.User, "get", xmpp.VersionQuery{})
if err != nil {
alert(s.term, "Error sending version request: "+err.Error())
continue
}
s.timeouts[cookie] = time.Now().Add(5 * time.Second)
go s.awaitVersionReply(replyChan, cmd.User)
case rosterCommand:
info(s.term, "Current roster:")
maxLen := 0
for _, item := range s.roster {
if maxLen < len(item.Jid) {
maxLen = len(item.Jid)
}
}
for _, item := range s.roster {
state, ok := s.knownStates[item.Jid]
line := ""
if ok {
line += "[*] "
} else if cmd.OnlineOnly {
continue
} else {
line += "[ ] "
}
line += item.Jid
numSpaces := 1 + (maxLen - len(item.Jid))
for i := 0; i < numSpaces; i++ {
line += " "
}
line += item.Subscription + "\t" + item.Name
if ok {
line += "\t" + state
}
info(s.term, line)
}
case rosterEditCommand:
if s.pendingRosterEdit != nil {
warn(s.term, "Aborting previous roster edit")
s.pendingRosterEdit = nil
}
rosterCopy := make([]xmpp.RosterEntry, len(s.roster))
copy(rosterCopy, s.roster)
go s.editRoster(rosterCopy)
case rosterEditDoneCommand:
if s.pendingRosterEdit == nil {
warn(s.term, "No roster edit in progress. Use /rosteredit to start one")
continue
}
go s.loadEditedRoster(*s.pendingRosterEdit)
case toggleStatusUpdatesCommand:
s.config.HideStatusUpdates = !s.config.HideStatusUpdates
s.config.Save()
// Tell the user the current state of the statuses
if s.config.HideStatusUpdates {
info(s.term, "Status updated disabled")
} else {
info(s.term, "Status updates enabled")
}
case confirmCommand:
s.handleConfirmOrDeny(cmd.User, true /* confirm */)
case denyCommand:
s.handleConfirmOrDeny(cmd.User, false /* deny */)
case addCommand:
s.conn.SendPresence(cmd.User, "subscribe", "" /* generate id */)
case msgCommand:
conversation, ok := s.conversations[cmd.to]
if (!ok || !conversation.IsEncrypted()) && config.ShouldEncryptTo(cmd.to) {
warn(s.term, fmt.Sprintf("Did not send: no encryption established with %s", cmd.to))
continue
}
var msgs [][]byte
message := []byte(cmd.msg)
// Automatically tag all outgoing plaintext
// messages with a whitespace tag that
// indicates that we support OTR.
if config.OTRAutoAppendTag &&
!bytes.Contains(message, []byte("?OTR")) &&
(!ok || !conversation.IsEncrypted()) {
message = append(message, OTRWhitespaceTag...)
}
if ok {
var err error
msgs, err = conversation.Send(message)
if err != nil {
alert(s.term, err.Error())
break
}
} else {
msgs = [][]byte{[]byte(message)}
}
for _, message := range msgs {
s.conn.Send(cmd.to, string(message))
}
case otrCommand:
s.conn.Send(string(cmd.User), otr.QueryMessage)
case otrInfoCommand:
info(term, fmt.Sprintf("Your OTR fingerprint is %x", s.privateKey.Fingerprint()))
for to, conversation := range s.conversations {
if conversation.IsEncrypted() {
info(s.term, fmt.Sprintf("Secure session with %s underway:", to))
printConversationInfo(s, to, conversation)
}
}
case endOTRCommand:
to := string(cmd.User)
conversation, ok := s.conversations[to]
if !ok {
alert(s.term, "No secure session established")
break
}
msgs := conversation.End()
for _, msg := range msgs {
s.conn.Send(to, string(msg))
}
case authQACommand:
to := string(cmd.User)
conversation, ok := s.conversations[to]
if !ok {
alert(s.term, "Can't authenticate without a secure conversation established")
break
}
msgs, err := conversation.Authenticate(cmd.Question, []byte(cmd.Secret))
if err != nil {
alert(s.term, "Error while starting authentication with "+to+": "+err.Error())
}
for _, msg := range msgs {
s.conn.Send(to, string(msg))
}
case authOobCommand:
fpr, err := hex.DecodeString(cmd.Fingerprint)
if err != nil {
alert(s.term, fmt.Sprintf("Invalid fingerprint %s - not authenticated", cmd.Fingerprint))
break
}
existing := s.config.UserIdForFingerprint(fpr)
if len(existing) != 0 {
alert(s.term, fmt.Sprintf("Fingerprint %s already belongs to %s", cmd.Fingerprint, existing))
break
}
s.config.KnownFingerprints = append(s.config.KnownFingerprints, KnownFingerprint{fingerprint: fpr, UserId: cmd.User})
s.config.Save()
info(s.term, fmt.Sprintf("Saved manually verified fingerprint %s for %s", cmd.Fingerprint, cmd.User))
case awayCommand:
s.conn.SignalPresence("away")
case chatCommand:
s.conn.SignalPresence("chat")
case dndCommand:
s.conn.SignalPresence("dnd")
case xaCommand:
s.conn.SignalPresence("xa")
case onlineCommand:
s.conn.SignalPresence("")
}
case rawStanza, ok := <-stanzaChan:
if !ok {
warn(term, "Exiting because channel to server closed")
break MainLoop
}
switch stanza := rawStanza.Value.(type) {
case *xmpp.ClientMessage:
s.processClientMessage(stanza)
case *xmpp.ClientPresence:
s.processPresence(stanza)
case *xmpp.ClientIQ:
if stanza.Type != "get" && stanza.Type != "set" {
continue
}
reply := s.processIQ(stanza)
if reply == nil {
reply = xmpp.ErrorReply{
Type: "cancel",
Error: xmpp.ErrorBadRequest{},
}
}
if err := s.conn.SendIQReply(stanza.From, "result", stanza.Id, reply); err != nil {
alert(term, "Failed to send IQ message: "+err.Error())
}
default:
info(term, fmt.Sprintf("%s %s", rawStanza.Name, rawStanza.Value))
}
}
}
os.Stdout.Write([]byte("\n"))
}
func run() error {
fset := twik.NewFileSet()
scope := twik.NewDefaultScope(fset)
scope.Create("printf", printfFn)
scope.Create("list", listFn)
if len(os.Args) > 1 {
if strings.HasPrefix(os.Args[1], "-") {
return fmt.Errorf("usage: twik [<source file>]")
}
f, err := os.Open(os.Args[1])
if err != nil {
return err
}
defer f.Close()
data, err := ioutil.ReadAll(f)
if err != nil {
return err
}
node, err := twik.Parse(fset, os.Args[1], data)
if err != nil {
return err
}
_, err = scope.Eval(node)
return err
}
state, err := terminal.MakeRaw(1)
if err != nil {
return err
}
defer terminal.Restore(1, state)
t := terminal.NewTerminal(os.Stdout, "> ")
unclosed := ""
for {
line, err := t.ReadLine()
if err == io.EOF {
break
}
if err != nil {
return err
}
if unclosed != "" {
line = unclosed + "\n" + line
}
unclosed = ""
t.SetPrompt("> ")
node, err := twik.ParseString(fset, "", line)
if err != nil {
if strings.HasSuffix(err.Error(), "missing )") {
unclosed = line
t.SetPrompt(". ")
continue
}
fmt.Println(err)
continue
}
value, err := scope.Eval(node)
if err != nil {
fmt.Println(err)
continue
}
if value != nil {
if reflect.TypeOf(value).Kind() == reflect.Func {
fmt.Println("#func")
} else if v, ok := value.([]interface{}); ok {
if len(v) == 0 {
fmt.Println("()")
} else {
fmt.Print("(list")
for _, e := range v {
fmt.Printf(" %#v", e)
}
fmt.Println(")")
}
} else {
fmt.Printf("%#v\n", value)
}
}
}
fmt.Println()
return nil
}
func newTerm() Term {
w := new(wterm)
w.t = terminal.NewTerminal(w, "lixian >> ")
return w
}
func main() {
flag.Parse()
w := eval.NewWorld()
if *filename != "" {
data, err := ioutil.ReadFile(*filename)
if err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
file, err := parser.ParseFile(fset, *filename, data, 0)
if err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
files := []*ast.File{file}
code, err := w.CompilePackage(fset, files, "main")
if err != nil {
if list, ok := err.(scanner.ErrorList); ok {
for _, e := range list {
fmt.Println(e.Error())
}
} else {
fmt.Println(err.Error())
}
os.Exit(1)
}
code, err = w.Compile(fset, "main()")
if err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
_, err = code.Run()
if err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
os.Exit(0)
}
fmt.Println(":: welcome to go-eval...\n(hit ^D to exit)")
fd := int(os.Stdin.Fd())
oldState, err := terminal.MakeRaw(fd)
if err != nil {
panic(err)
}
defer terminal.Restore(fd, oldState)
term := terminal.NewTerminal(&shell{r: os.Stdin, w: os.Stdout}, "> ")
if term == nil {
panic(errors.New("could not create terminal"))
}
for {
line, err := term.ReadLine()
if err != nil {
break
}
code, err := w.Compile(fset, line)
if err != nil {
term.Write([]byte(err.Error() + "\n"))
continue
}
v, err := code.Run()
if err != nil {
term.Write([]byte(err.Error() + "\n"))
continue
}
if v != nil {
term.Write([]byte(v.String() + "\n"))
}
}
}