Beispiel #1
0
func (self *interaction) Pager(text string) (err error) {
	pipe := make(chan io.WriteCloser, 1)

	prepare := func(cmd *exec.Cmd) (err error) {
		cmd.Stdout = os.Stdout
		cmd.Stderr = os.Stderr
		p, err := cmd.StdinPipe()
		if err != nil {
			return errors.Decorated(err)
		}
		pipe <- p
		return
	}

	run := func(cmd *exec.Cmd) (err error) {
		p := <-pipe
		p.Write([]byte(text))
		err = p.Close()
		if err != nil {
			return errors.Decorated(err)
		}
		return
	}

	err = exec.Command(prepare, run, "less", "-R")
	return
}
Beispiel #2
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func xclip(name string, selection string) (err error) {
	pipe := make(chan io.WriteCloser, 1)

	prepare := func(cmd *exec.Cmd) (err error) {
		p, err := cmd.StdinPipe()
		if err != nil {
			return errors.Decorated(err)
		}
		pipe <- p
		return
	}

	run := func(cmd *exec.Cmd) (err error) {
		p := <-pipe
		p.Write([]byte(name))
		err = p.Close()
		if err != nil {
			return errors.Decorated(err)
		}
		return
	}

	err = exec.Command(prepare, run, "xclip", "-selection", selection)
	return
}
Beispiel #3
0
// Spawn a given command.
//  - prepare() is called after the command creation but before actually starting it
//  - run() is called while the command is running and before waiting for its completion
func Command(prepare func(cmd *Cmd) error, run func(cmd *Cmd) error, command string, arguments ...string) (err error) {
	cmd := exec.Command(command, arguments...)

	if prepare != nil {
		err = prepare((*Cmd)(cmd))
		if err != nil {
			return
		}
	}

	err = cmd.Start()
	if err != nil {
		return errors.Decorated(err)
	}

	if run != nil {
		err = run((*Cmd)(cmd))
		if err != nil {
			return
		}
	}

	err = cmd.Wait()
	if err != nil {
		return errors.Decorated(err)
	}

	return
}
Beispiel #4
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func (self *interaction) ReadPassword(text string) (result string, err error) {
	command, err := self.config.Eval("", "password", "command", os.Getenv)
	if err != nil {
		return
	}
	env := func(name string) string {
		switch name {
		case "TEXT":
			return text
		}
		return ""
	}
	arguments, err := self.config.Eval("", "password", "arguments", env)
	if err != nil {
		return
	}

	buffer := &bytes.Buffer{}

	type barrierData struct {
		n   int64
		err error
	}
	barrier := make(chan barrierData)

	prepare := func(cmd *exec.Cmd) (err error) {
		out, err := cmd.StdoutPipe()
		if err != nil {
			return errors.Decorated(err)
		}

		go func() {
			n, err := buffer.ReadFrom(out)
			barrier <- barrierData{n, err}
		}()
		return
	}

	resulter := make(chan string, 1)

	run := func(cmd *exec.Cmd) (err error) {
		data := <-barrier
		if data.err != nil {
			return errors.Decorated(err)
		}

		// the last character is a \n -- ignore it
		resulter <- string(buffer.Bytes()[:data.n-1])

		return
	}

	err = exec.Command(prepare, run, "bash", "-c", fmt.Sprintf("%s %s", command, arguments))
	if err != nil {
		return
	}

	result = <-resulter
	return
}
Beispiel #5
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func (self *config) ListConfigFiles() (result []string, err error) {
	xdg, err := self.Xdg()
	if err != nil {
		return
	}
	config_path, err := xdg.ConfigHome()
	if err != nil {
		return
	}
	config, err := os.Open(config_path)
	if err != nil {
		err = errors.Decorated(err)
		return
	}
	names, err := config.Readdirnames(0)
	if err != nil {
		err = errors.Decorated(err)
		return
	}
	result = make([]string, 0, len(names)-1)
	for _, name := range names {
		if name != "config.rc" && strings.HasSuffix(name, ".rc") {
			result = append(result, name)
		}
	}
	return
}
Beispiel #6
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func displayMenu(config core.Config, srv server.Server, list []string) (err error) {
	command, err := config.Eval("", "menu", "command", os.Getenv)
	if err != nil {
		return
	}
	arguments, err := config.Eval("", "menu", "arguments", nil)
	if err != nil {
		return
	}

	barrier := make(chan error)
	pipe := make(chan io.WriteCloser, 1)

	prepare := func(cmd *exec.Cmd) (err error) {
		p, err := cmd.StdinPipe()
		if err != nil {
			return errors.Decorated(err)
		}

		out, err := cmd.StdoutPipe()
		if err != nil {
			return errors.Decorated(err)
		}

		mmi, err := ui.Ui(srv, config)
		if err != nil {
			return
		}

		go clipboard(mmi, out, barrier)

		pipe <- p
		return
	}

	run := func(cmd *exec.Cmd) (err error) {
		p := <-pipe

		for _, entry := range list {
			p.Write([]byte(entry + "\n"))
		}

		err = p.Close()
		if err != nil {
			return errors.Decorated(err)
		}

		e := <-barrier
		if e != io.EOF {
			err = errors.Decorated(e)
		}
		return
	}

	err = exec.Command(prepare, run, "bash", "-c", fmt.Sprintf("%s %s", command, arguments))

	return
}
Beispiel #7
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func (self *vault) save(config core.Config) (err error) {
	outstream, err := self.out()
	if err != nil {
		return errors.Decorated(err)
	}
	defer outstream.Close()

	cipher, err := config.Eval("", "vault", "openssl.cipher", os.Getenv)
	if err != nil {
		return err
	}

	pipe := make(chan io.WriteCloser, 1)

	prepare := func(cmd *exec.Cmd) (err error) {
		cmd.Env = append(os.Environ(), fmt.Sprintf("VAULT_MASTER=%s", self.master))
		cmd.Stdout = outstream
		p, err := cmd.StdinPipe()
		if err != nil {
			return errors.Decorated(err)
		}
		pipe <- p
		return
	}

	run := func(cmd *exec.Cmd) (err error) {
		p := <-pipe
		for _, k := range self.data {
			code := k.Encoded()
			n, err := p.Write([]byte(code))
			if err != nil {
				return errors.Decorated(err)
			}
			if n < len(code) {
				return errors.Newf("Incomplete write")
			}
		}
		err = p.Close()
		if err != nil {
			return errors.Decorated(err)
		}
		return
	}

	err = exec.Command(prepare, run, "openssl", cipher, "-a", "-pass", "env:VAULT_MASTER")

	return
}
Beispiel #8
0
func (self *httpChannelClient) Ping(info string, reply *string) (err error) {
	err = self.client.Call("Gate.Ping", info, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #9
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func (self *httpChannelClient) SetMaster(master string, reply *bool) (err error) {
	err = self.client.Call("Gate.SetMaster", master, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #10
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func (self *httpChannelClient) Set(args server.SetArgs, reply *string) (err error) {
	err = self.client.Call("Gate.Set", args, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #11
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func (self *httpChannelClient) Save(force bool, reply *bool) (err error) {
	err = self.client.Call("Gate.Save", force, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #12
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func (self *httpChannelClient) Merge(args server.MergeArgs, reply *bool) (err error) {
	err = self.client.Call("Gate.Merge", args, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #13
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func (self *httpChannelClient) List(filter string, reply *[]string) (err error) {
	err = self.client.Call("Gate.List", filter, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #14
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func (self *httpChannelClient) Get(name string, reply *string) (err error) {
	err = self.client.Call("Gate.Get", name, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #15
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func (self *httpChannelClient) IsOpen(thenClose bool, reply *bool) (err error) {
	err = self.client.Call("Gate.IsOpen", thenClose, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #16
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func (self *httpChannelClient) Stop(status int, reply *bool) (err error) {
	err = self.client.Call("Gate.Stop", status, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #17
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func (self *httpChannelClient) Unset(key string, reply *bool) (err error) {
	err = self.client.Call("Gate.Unset", key, reply)
	if err != nil {
		err = errors.Decorated(err)
	}
	return
}
Beispiel #18
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func proxy(config core.Config) (result server.Server, err error) {
	result = _proxy
	if result == nil {
		s, err := serverimpl.Proxy(config, startServer)
		if err != nil {
			return
		}

		var isopen bool
		err = s.IsOpen(false, &isopen)
		if err != nil {
			err = errors.Decorated(err)
			return
		}

		if !isopen {
			err = openVault(s, config)
			if err != nil {
				return
			}
		}

		result = s
		_proxy = result
	}
	return
}
Beispiel #19
0
func (self *properties) storeProperties(out io.Writer) (err error) {
	if err != nil {
		return errors.Decorated(err)
	}

	for property, value := range self.properties {
		if value != "" {
			_, err = out.Write([]byte(fmt.Sprintf("%s = %s\n", property, value)))
			if err != nil {
				return errors.Decorated(err)
			}
		}
	}

	return
}
Beispiel #20
0
func (self *vault) Open(master string, config core.Config) (err error) {
	instream, err := self.in()
	if err != nil {
		return errors.Decorated(err)
	}
	defer instream.Close()

	cipher, err := config.Eval("", "vault", "openssl.cipher", os.Getenv)
	if err != nil {
		return
	}

	barrier := make(chan error)

	prepare := func(cmd *exec.Cmd) (err error) {
		cmd.Env = append(os.Environ(), fmt.Sprintf("VAULT_MASTER=%s", master))
		cmd.Stdin = instream

		out, err := cmd.StdoutPipe()
		if err != nil {
			return errors.Decorated(err)
		}

		go self.decode(self, out, barrier)

		return
	}

	run := func(cmd *exec.Cmd) (err error) {
		e := <-barrier
		if e != io.EOF {
			err = errors.Decorated(e)
		}

		return
	}

	err = exec.Command(prepare, run, "openssl", cipher, "-d", "-a", "-pass", "env:VAULT_MASTER")
	if err != nil {
		return
	}

	self.master = master
	self.open = true
	return
}
Beispiel #21
0
func decode_group_int(dec *regexp.Regexp, data string, name string, match []int) (result int64, err error) {
	s := decode_group(dec, data, name, match)
	result, err = strconv.ParseInt(s, 10, 64)
	if err != nil {
		return 0, errors.Decorated(err)
	}
	return
}
Beispiel #22
0
func (self *generator) New() (result string, err error) {
	in, err := os.Open("/dev/random")
	if err != nil {
		return "", errors.Decorated(err)
	}
	defer in.Close()
	return self.generated(in)
}
Beispiel #23
0
func startServer() (err error) {
	pipe := make(chan io.WriteCloser, 1)

	prepare := func(cmd *exec.Cmd) (err error) {
		p, err := cmd.StdinPipe()
		if err != nil {
			return errors.Decorated(err)
		}
		pipe <- p
		return
	}

	run := func(cmd *exec.Cmd) (err error) {
		p := <-pipe
		dir := dirname()
		var exe string
		if dir == "" {
			exe, err = osexec.LookPath("server")
			if err != nil {
				return errors.Decorated(err)
			}
		} else {
			exe = fmt.Sprintf("%s/server", dir)
		}
		var rc string
		if len(os.Args) > 1 {
			rc = os.Args[1]
		}

		p.Write([]byte(fmt.Sprintf("#!/bin/bash\n%s \"%s\" > /tmp/server-%s.log 2>&1 & disown\n", exe, rc, time.Now().Format("20060102150405"))))

		err = p.Close()
		if err != nil {
			return errors.Decorated(err)
		}
		return
	}

	err = exec.Command(prepare, run, "at", "now")
	if err != nil {
		return
	}

	return
}
Beispiel #24
0
func (self *httpChannelServer) Stop(status int, reply *bool) (err error) {
	err = self.server.Stop(status, reply)
	if err != nil {
		return
	}
	err = self.listener.Close()
	if err != nil {
		return errors.Decorated(err)
	}
	return
}
Beispiel #25
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func (self *proxy) StoreProperties(out io.Writer) (err error) {
	if self.countProperties() > 0 {
		_, err = out.Write([]byte("[proxy]\n"))
		if err != nil {
			return errors.Decorated(err)
		}

		err = self.storeProperties(out)
	}

	return
}
Beispiel #26
0
func (self *httpChannelClient) Connect() (err error) {
	host, port := networkConfig(self.config)
	endpoint := fmt.Sprintf("%s:%d", host, port)
	client, err := rpc.DialHTTP("tcp", endpoint)
	if err != nil {
		e := self.startFunc()
		if e != nil {
			err = errors.Decorated(e)
			return
		}
		for delay := 100 * time.Millisecond; err != nil && delay <= 3*time.Second; delay *= 2 {
			// if the server just started, maybe it needs time to settle
			time.Sleep(delay)
			client, err = rpc.DialHTTP("tcp", endpoint)
		}
	}
	if err != nil {
		err = errors.Decorated(err)
		return
	}

	self.client = client
	return
}
Beispiel #27
0
// Get the list of passwords from the server, displays a list and puts
// the corresponding password in xclip
func Menu(config core.Config) (err error) {
	srv, err := proxy(config)
	if err != nil {
		return
	}
	var list []string
	err = srv.List(".*", &list)
	if err != nil {
		return errors.Decorated(err)
	}
	if len(list) > 0 {
		err = displayMenu(config, srv, list)
	}
	return
}
Beispiel #28
0
func checkdir(dirname string) (result string, err error) {
	result = dirname
	info, err := os.Stat(dirname)
	if err == nil {
		if !info.IsDir() {
			err = errors.Newf("%s is not a directory", dirname)
		}
	} else {
		err = os.MkdirAll(dirname, os.ModeDir|0700)
		if err != nil {
			err = errors.Decorated(err)
		}
	}
	return
}
Beispiel #29
0
func (self *httpChannelServer) Bind() (err error) {
	rpc.RegisterName("Gate", self)
	rpc.HandleHTTP()

	host, port := networkConfig(self.config)
	endpoint := fmt.Sprintf("%s:%s", host, port)
	self.listener, err = net.Listen("tcp", endpoint)
	if err != nil {
		err = errors.Decorated(err)
		return
	}

	go http.Serve(self.listener, self.handler)

	return
}
Beispiel #30
0
func (self generator_mix) extend_pass(in io.Reader, pass string) (result string, err error) {
	data := make([]byte, 0, 3)
	n, err := in.Read(data)
	if err != nil {
		return "", errors.Decorated(err)
	}
	if n < 3 {
		return "", errors.New("not enough data")
	}
	b1 := data[0]
	b2 := data[1]
	b := byte(int((b1&0x7f)<<8+b2) % len(self.ingredient))
	i := int(data[2]) % (len(pass) + 1)
	result = string(append(append(append(make([]byte, 0, len(pass)+1), pass[:i]...), b), pass[i:]...))
	return
}