// onSubBuildMenu fills the menu with stream actions: select device.
//
func (app *Applet) onSubBuildMenu(icon string, menu cdtype.Menuer) { // stream actions menu: select device.
dev := app.pulse.Stream(dbus.ObjectPath(icon))
mute, _ := dev.Bool("Mute")
menu.AddCheckEntry("Mute volume", mute, func() {
toggleMute(dev)
})
sel, es := dev.ObjectPath("Device")
if log.Err(es) {
return
}
app.menuAddDevices(menu, sel, "Output", func(sink dbus.ObjectPath) error {
return dev.Call("Move", 0, sink).Err
})
// Kill works but seem to leave the client app into a bugged state (same for stream or client kill).
// app.menu.Append("Kill", func() {
// // log.Err(dev.Call("Kill", 0).Err, "Kill") // kill stream.
// client, ec := dev.ObjectPath("Client")
// if ec != nil {
// return
// }
// app.pulse.Client.Client(client).Call("Kill", 0) // kill client.
// })
}
func (c *Conn) initDispatch() {
ch := make(chan *dbus.Signal, signalBuffer)
c.sysconn.Signal(ch)
go func() {
for {
signal, ok := <-ch
if !ok {
return
}
switch signal.Name {
case "org.freedesktop.systemd1.Manager.JobRemoved":
c.jobComplete(signal)
unitName := signal.Body[2].(string)
var unitPath dbus.ObjectPath
c.sysobj.Call("org.freedesktop.systemd1.Manager.GetUnit", 0, unitName).Store(&unitPath)
if unitPath != dbus.ObjectPath("") {
c.sendSubStateUpdate(unitPath)
}
case "org.freedesktop.systemd1.Manager.UnitNew":
c.sendSubStateUpdate(signal.Body[1].(dbus.ObjectPath))
case "org.freedesktop.DBus.Properties.PropertiesChanged":
if signal.Body[0].(string) == "org.freedesktop.systemd1.Unit" {
// we only care about SubState updates, which are a Unit property
c.sendSubStateUpdate(signal.Path)
}
}
}
}()
}
func (app *Applet) onSubMiddleClick(icon string) {
switch app.conf.MiddleAction {
case 3: // TODO: need more actions and constants to define them.
log.Debug("mute")
toggleMute(app.pulse.Stream(dbus.ObjectPath(icon)))
}
}
func recurseObjects(bus *dbus.Conn, service, prefix string) ([]string, error) {
var s string
err := bus.Object(service, dbus.ObjectPath(prefix)).Call("org.freedesktop.DBus.Introspectable.Introspect", 0).Store(&s)
if err != nil {
return nil, err
}
var n introspect.Node
err = xml.Unmarshal([]byte(s), &n)
if err != nil {
return nil, err
}
names := make([]string, 0, 100)
if len(n.Interfaces) > 1 {
names = append(names, prefix)
}
for _, child := range n.Children {
childPath := path.Join(prefix, child.Name)
items, err := recurseObjects(bus, service, childPath)
if err != nil {
return nil, err
}
names = append(names, items...)
}
return names, nil
}
func (a *AllJoynBridge) fetchAboutData(svcInfo *AllJoynServiceInfo, objInfo *AllJoynBindingInfo) error {
obj := a.bus.Object(svcInfo.dbusService, dbus.ObjectPath(objInfo.dbusPath))
call := obj.Call(AJ_ABOUT_GETABOUTDATA, 0, "en")
if call.Err != nil {
log.Printf("Error calling %s: %v", AJ_ABOUT_GETABOUTDATA, call.Err)
return call.Err
}
// fill aboutData with values
call.Store(&aboutData)
log.Printf("ABOUT: %+v", aboutData)
for key, value := range aboutData {
// log.Printf("%s(%s)", key, value.Signature())
switch value.Signature().String() {
case "ay":
C.SetProperty(C.CString(key), unsafe.Pointer(C.CString(fmt.Sprintf("%x", value.Value()))))
default:
C.SetProperty(C.CString(key), unsafe.Pointer(C.CString(value.String())))
}
}
return nil
}
func newDbusServer() (*dbusServer, error) {
conn, err := dbus.SystemBus()
if err != nil {
return nil, err
}
reply, err := conn.RequestName(busName, dbus.NameFlagDoNotQueue)
if err != nil {
return nil, err
}
if reply != dbus.RequestNameReplyPrimaryOwner {
return nil, errors.New("Bus name is already owned")
}
ds := &dbusServer{}
if err := conn.Export(ds, objectPath, interfaceName); err != nil {
return nil, err
}
ps := strings.Split(objectPath, "/")
path := "/"
for _, p := range ps {
if len(path) > 1 {
path += "/"
}
path += p
if err := conn.Export(ds, dbus.ObjectPath(path), "org.freedesktop.DBus.Introspectable"); err != nil {
return nil, err
}
}
ds.conn = conn
ds.prompter = newPrompter(conn)
return ds, nil
}
// ObjectPath creates a dbus.ObjectPath using the rules that systemd uses for
// serializing special characters.
func ObjectPath(path string) dbus.ObjectPath {
path = strings.Replace(path, ".", "_2e", -1)
path = strings.Replace(path, "-", "_2d", -1)
path = strings.Replace(path, "@", "_40", -1)
return dbus.ObjectPath(path)
}
func (c *Conn) initConnection() error {
var err error
c.sysconn, err = dbus.SystemBusPrivate()
if err != nil {
return err
}
// Only use EXTERNAL method, and hardcode the uid (not username)
// to avoid a username lookup (which requires a dynamically linked
// libc)
methods := []dbus.Auth{dbus.AuthExternal(strconv.Itoa(os.Getuid()))}
err = c.sysconn.Auth(methods)
if err != nil {
c.sysconn.Close()
return err
}
err = c.sysconn.Hello()
if err != nil {
c.sysconn.Close()
return err
}
c.sysobj = c.sysconn.Object("org.freedesktop.systemd1", dbus.ObjectPath("/org/freedesktop/systemd1"))
// Setup the listeners on jobs so that we can get completions
c.sysconn.BusObject().Call("org.freedesktop.DBus.AddMatch", 0,
"type='signal', interface='org.freedesktop.systemd1.Manager', member='JobRemoved'")
c.initSubscription()
c.initDispatch()
return nil
}
func traverseDbusObjects(bus *dbus.Conn, dbusService, dbusPath string, fn func(path string, node *introspect.Node)) {
var xmldata string
var node introspect.Node
var o = bus.Object(dbusService, dbus.ObjectPath(dbusPath))
err := o.Call("org.freedesktop.DBus.Introspectable.Introspect", 0).Store(&xmldata)
if err != nil {
log.Printf("Error getting introspect from [%s, %s]: %s", dbusService, dbusPath, err)
}
err = xml.NewDecoder(strings.NewReader(xmldata)).Decode(&node)
if err != nil {
log.Printf("Error decoding introspect from [%s, %s]: %s", dbusService, dbusPath, err)
}
// log.Printf("Introspect: %+v", node)
if node.Name != "" && len(node.Interfaces) > 0 {
fn(dbusPath, &node)
}
for _, child := range node.Children {
traverseDbusObjects(bus, dbusService, dbusPath+"/"+child.Name, fn)
}
}
// GetClient return a connection to the active instance of the internal Dbus
// service if any. Return nil, nil if none found.
// InterfacePath is an optional string to provide if the object use an interface
// path different from SrvObj
//
func GetClient(SrvObj, SrvPath string, InterfacePath ...string) (*Client, error) {
conn, ec := dbus.SessionBus()
if ec != nil {
return nil, ec
}
reply, e := conn.RequestName(SrvObj, dbus.NameFlagDoNotQueue)
if e != nil {
return nil, e
}
conn.ReleaseName(SrvObj)
if reply == dbus.RequestNameReplyPrimaryOwner { // no active instance.
return nil, errors.New("no service found")
}
if len(InterfacePath) == 0 { // Set default interface path = object name.
InterfacePath = []string{SrvObj}
}
// Found active instance, return client.
return &Client{
BusObject: conn.Object(SrvObj, dbus.ObjectPath(SrvPath)),
srvObj: InterfacePath[0],
testErr: func(e error, method string) {},
}, nil
}
func newDbus() (*logindDbus, error) {
conn, err := dbus.SystemBusPrivate()
if err != nil {
return nil, err
}
methods := []dbus.Auth{dbus.AuthExternal(strconv.Itoa(os.Getuid()))}
err = conn.Auth(methods)
if err != nil {
conn.Close()
return nil, err
}
err = conn.Hello()
if err != nil {
conn.Close()
return nil, err
}
object := conn.Object(dbusObject, dbus.ObjectPath(dbusPath))
return &logindDbus{
conn: conn,
object: object,
}, nil
}
func (c *Conn) initConnection() error {
var err error
c.sysconn, err = dbus.SystemBusPrivate()
if err != nil {
return err
}
err = c.sysconn.Auth(nil)
if err != nil {
c.sysconn.Close()
return err
}
err = c.sysconn.Hello()
if err != nil {
c.sysconn.Close()
return err
}
c.sysobj = c.sysconn.Object("org.freedesktop.systemd1", dbus.ObjectPath("/org/freedesktop/systemd1"))
// Setup the listeners on jobs so that we can get completions
c.sysconn.BusObject().Call("org.freedesktop.DBus.AddMatch", 0,
"type='signal', interface='org.freedesktop.systemd1.Manager', member='JobRemoved'")
c.initSubscription()
c.initDispatch()
return nil
}
func main() {
bus, err := dbus.SystemBus()
bus.RequestName("com.devicehive.alljoyn.test.basic",
dbus.NameFlagDoNotQueue)
if err != nil {
log.Panic(err)
}
basicService := NewBasicService(bus)
bus.Export(basicService, "/com/devicehive/alljoyn/test/basic", "org.alljoyn.About")
bus.Export(basicService, "/com/devicehive/alljoyn/test/basic", "org.alljoyn.Bus.sample")
bus.Export(basicService, "/com/devicehive/alljoyn/test/basic", "org.freedesktop.DBus.Introspectable")
// Now try to register ourself in AllJoyn via dbus
go func() {
bridge := bus.Object("com.devicehive.alljoyn.bridge", dbus.ObjectPath("/com/devicehive/alljoyn/bridge"))
res := bridge.Call("com.devicehive.alljoyn.bridge.AddService", 0, "/com/devicehive/alljoyn/test/basic", "com.devicehive.alljoyn.test.basic", "/sample", "org.alljoyn.Bus.sample", "")
log.Printf("Result: %+v", res)
res = bridge.Call("com.devicehive.alljoyn.bridge.StartAllJoyn", 0, "com.devicehive.alljoyn.test.basic")
}()
select {}
}
func (c *Conn) initConnection() error {
var err error
c.conn, err = dbus.SystemBusPrivate()
if err != nil {
return err
}
// Only use EXTERNAL method, and hardcode the uid (not username)
// to avoid a username lookup (which requires a dynamically linked
// libc)
methods := []dbus.Auth{dbus.AuthExternal(strconv.Itoa(os.Getuid()))}
err = c.conn.Auth(methods)
if err != nil {
c.conn.Close()
return err
}
err = c.conn.Hello()
if err != nil {
c.conn.Close()
return err
}
c.object = c.conn.Object("org.freedesktop.login1", dbus.ObjectPath(dbusPath))
return nil
}
func (m *AllJoynMessenger) callRemoteMethod(message *C.AJ_Message, path, member string, arguments []interface{}) (err error) {
log.Printf("MSG: message.hdr=%p", message.hdr)
remote := m.bus.Object(m.dbusService, dbus.ObjectPath(path))
// log.Printf("%s Argument[0] %+v", member, reflect.ValueOf(arguments[0]).Type())
res := remote.Call(member, 0, arguments...)
if res.Err != nil {
log.Printf("Error calling dbus method (%s): %s", member, res.Err)
return res.Err
}
//pad := 4 - (int)(message.bodyBytes)%4
//C.WriteBytes((*C.AJ_Message)(message), nil, (C.size_t)(0), (C.size_t)(pad))
buf := new(bytes.Buffer)
buf.Write(make([]byte, (int)(message.bodyBytes)))
enc := ajmarshal.NewEncoderAtOffset(buf, (int)(message.bodyBytes), binary.LittleEndian)
pad, err := enc.Encode(res.Body...)
// log.Printf("Padding of the encoded buffer: %d", pad)
if err != nil {
log.Printf("Error encoding result: %s", err)
return err
}
/*
C.AJ_MarshalContainer((*C.AJ_Message)(message), (*C.AJ_Arg)(C.Get_Arg()), C.AJ_ARG_ARRAY)
C.AJ_MarshalArgs_cgo((*C.AJ_Message)(message), C.CString("{sv}"), C.CString("DeviceName"), C.CString("s"), C.CString("Golang-device"))
C.AJ_MarshalCloseContainer((*C.AJ_Message)(message), (*C.AJ_Arg)(C.Get_Arg()))
*/
//log.Printf("Encoded reply, len: %+v, %d", buf.Bytes(), buf.Len())
// log.Printf("Length before: %d", message.bodyBytes)
newBuf := buf.Bytes()[(int)(message.bodyBytes)+pad:]
//log.Printf("Buffer to write into AllJoyn: %+v, %d", newBuf, len(newBuf))
// hdr := message.hdr
// if hdr.flags&C.uint8_t(C.AJ_FLAG_ENCRYPTED) == 0 {
// hdr = nil
// } else {
// message.hdr.flags &= ^C.uint8_t(C.AJ_FLAG_ENCRYPTED)
// }
if len(newBuf) > 0 {
log.Printf("MSG: message.hdr=%p", message.hdr)
C.AJ_DeliverMsgPartial((*C.AJ_Message)(message), C.uint32_t(len(newBuf)))
log.Printf("MSG: message.hdr=%p", message.hdr)
C.AJ_MarshalRaw((*C.AJ_Message)(message), unsafe.Pointer(&newBuf[0]), C.size_t(len(newBuf)))
} else {
C.AJ_MarshalRaw((*C.AJ_Message)(message), unsafe.Pointer(&newBuf), C.size_t(0))
}
//log.Printf("New buff reply, len: %+v, %d", newBuf, len(newBuf))
// if hdr != nil {
// message.hdr = hdr
// message.hdr.flags &= ^C.uint8_t(C.AJ_FLAG_ENCRYPTED)
// }
log.Printf("MSG: message.hdr=%p", message.hdr)
return nil
}
func (d *dbusWrapper) call(name string, args ...interface{}) *dbus.Call {
c := d.conn.Object(d.iface, dbus.ObjectPath(d.path)).Call(d.iface+"."+name, 0, args...)
if c.Err != nil {
log.Printf("Error calling %s: %s", name, c.Err)
}
return c
}
func (c *testLogindInterface) getSession(session logindSessionEntry) *logindSession {
sessions := map[dbus.ObjectPath]*logindSession{
dbus.ObjectPath("/org/freedesktop/login1/session/1"): {
seat: session.SeatId,
remote: "true",
sessionType: knownStringOrOther("tty", attrTypeValues),
class: knownStringOrOther("user", attrClassValues),
},
dbus.ObjectPath("/org/freedesktop/login1/session/2"): {
seat: session.SeatId,
remote: "false",
sessionType: knownStringOrOther("x11", attrTypeValues),
class: knownStringOrOther("greeter", attrClassValues),
},
}
return sessions[session.SessionObjectPath]
}
func (c *testLogindInterface) listSessions() ([]logindSessionEntry, error) {
return []logindSessionEntry{
{
SessionId: "1",
UserId: 0,
UserName: "",
SeatId: "",
SessionObjectPath: dbus.ObjectPath("/org/freedesktop/login1/session/1"),
},
{
SessionId: "2",
UserId: 0,
UserName: "",
SeatId: "seat0",
SessionObjectPath: dbus.ObjectPath("/org/freedesktop/login1/session/2"),
},
}, nil
}
// EmitSignal emits a signal on conn
func (conn *DBusFakeConnection) EmitSignal(name, path, iface, signal string, args ...interface{}) {
sig := &godbus.Signal{
Sender: name,
Path: godbus.ObjectPath(path),
Name: iface + "." + signal,
Body: args,
}
for _, ch := range conn.signalHandlers {
ch <- sig
}
}
func (app *Applet) onSubScroll(icon string, up bool) {
dev := app.pulse.Stream(dbus.ObjectPath(icon))
values, e := dev.ListUint32("Volume")
if log.Err(e) {
return
}
delta := app.conf.VolumeStep
if !up {
delta = -delta
}
log.Err(dev.Set("Volume", VolumeDelta(values, delta)))
}
func ConnectToDBus(bus string) (*DBusClient, error) {
c := new(DBusClient)
var err error
switch bus {
case "session":
c.bus, err = dbus.SessionBus()
case "system":
c.bus, err = dbus.SystemBus()
default:
c.bus, err = dbus.Dial(bus)
}
if err != nil {
return nil, err
}
if !c.bus.SupportsUnixFDs() {
return nil, errors.New("DBus connection does not support file descriptors")
}
c.path = dbus.ObjectPath("/com/firelizzard/teasvc/Client")
err = c.bus.Export(c, c.path, "com.firelizzard.teasvc.Client")
if err != nil {
return nil, err
}
c.sigchans = make(map[string](chan *dbus.Signal))
chsig := make(chan *dbus.Signal, 10)
go func() {
for {
sig := <-chsig
ch, ok := c.sigchans[sig.Name]
if !ok {
log.Print("Unhandled signal: " + sig.Name)
}
select {
case ch <- sig:
// sent singal, done
default:
log.Print("Unhandled signal (full channel): " + sig.Name)
}
}
}()
c.bus.Signal(chsig)
c.bus.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, "type='signal',interface='com.firelizzard.teasvc',member='Pong'")
return c, nil
}
func New() *Interface {
bus, err := dbus.SystemBus()
if err != nil {
return &Interface{}
}
fw := &Interface{
obj: bus.Object(firewalldName, dbus.ObjectPath(firewalldPath)),
}
go fw.dbusSignalHandler(bus)
return fw
}
// Start starts the DBus service with the given object.
// Introspection will be managed and the provided properties exposed.
// Methods will also be auto discovered.
//
func (load *Server) Start(obj interface{}, propsSpec map[string]map[string]*prop.Prop) (bool, error) {
reply, e := load.Conn.RequestName(load.srvObj, dbus.NameFlagDoNotQueue)
if e != nil {
return false, e
}
if reply != dbus.RequestNameReplyPrimaryOwner {
return false, nil
}
// Everything OK, we can register our Dbus methods.
e = load.Conn.Export(obj, dbus.ObjectPath(load.srvPath), load.srvObj)
if load.Log.Err(e, "register service object") {
return false, e
}
introNode := load.Introspect(obj, propsSpec)
e = load.Conn.Export(introspect.NewIntrospectable(introNode), dbus.ObjectPath(load.srvPath), "org.freedesktop.DBus.Introspectable")
if load.Log.Err(e, "register service introspect") {
return false, e
}
return true, nil
}
// DisplayStreamVolume renders the given stream volume on the subicon.
//
func (ap *AppPulse) DisplayStreamVolume(name string, values []uint32) error {
mute, e := ap.Stream(dbus.ObjectPath(name)).Bool("Mute")
if e != nil {
return e // no mute, check if need to send values??
}
label := VolumeToPercent(VolumeToFloat(values))
emblem := ""
if mute {
// label += " [M]"
emblem = ap.icon.FileLocation("img", DefaultIconMuted)
}
ap.icon.SubIcon(name).SetEmblem(emblem, EmblemMuted)
return ap.icon.SubIcon(name).SetQuickInfo(label)
}
// Introspect provides introspection data for the DBus service to start.
//
// propsSpec example:
//
// var propsSpec = map[string]map[string]*prop.Prop{
// SrvObj: {
// "Restart": {
// int32(0),
// true,
// prop.EmitTrue,
// func(c *prop.Change) *dbus.Error {
// fmt.Println(c.Name, "changed to", c.Value)
// return nil
// },
// },
// },
// }
//
func (load *Server) Introspect(obj interface{}, propsSpec map[string]map[string]*prop.Prop) *introspect.Node {
var props []introspect.Property
if propsSpec != nil {
tmp := prop.New(load.Conn, dbus.ObjectPath(load.srvPath), propsSpec)
props = tmp.Introspection(load.srvObj)
}
return &introspect.Node{
Name: load.srvPath,
Interfaces: []introspect.Interface{
prop.IntrospectData,
{
Name: load.srvObj,
Methods: introspect.Methods(obj),
Properties: props,
},
},
}
}
func (c *Conn) dispatch() {
ch := make(chan *dbus.Signal, signalBuffer)
c.sigconn.Signal(ch)
go func() {
for {
signal, ok := <-ch
if !ok {
return
}
if signal.Name == "org.freedesktop.systemd1.Manager.JobRemoved" {
c.jobComplete(signal)
}
if c.subscriber.updateCh == nil {
continue
}
var unitPath dbus.ObjectPath
switch signal.Name {
case "org.freedesktop.systemd1.Manager.JobRemoved":
unitName := signal.Body[2].(string)
c.sysobj.Call("org.freedesktop.systemd1.Manager.GetUnit", 0, unitName).Store(&unitPath)
case "org.freedesktop.systemd1.Manager.UnitNew":
unitPath = signal.Body[1].(dbus.ObjectPath)
case "org.freedesktop.DBus.Properties.PropertiesChanged":
if signal.Body[0].(string) == "org.freedesktop.systemd1.Unit" {
unitPath = signal.Path
}
}
if unitPath == dbus.ObjectPath("") {
continue
}
c.sendSubStateUpdate(unitPath)
}
}()
}
// New creates a new applet instance with args from command line.
//
func New(callnew cdtype.NewAppletFunc, args []string, dir string) (cdtype.AppInstance, *CDDbus, func() error) {
name := args[0][2:] // Strip ./ in the beginning.
base := cdapplet.New()
base.SetBase(name, args[3], args[4], dir)
app := cdapplet.Start(callnew, base)
if app == nil {
return nil, nil, nil
}
// app.ParentAppName = args[5]
backend := &CDDbus{
icons: make(map[string]*SubIcon),
busPath: dbus.ObjectPath(args[2]),
menu: &Menu{},
log: app.Log(),
}
app.SetBackend(backend)
callinit := app.SetEvents(app)
return app, backend, callinit
}
func ExportToDBus(proc *Process, bus string) (*DBusServer, error) {
s := new(DBusServer)
s.proc = proc
var err error
switch bus {
case "session":
s.bus, err = dbus.SessionBus()
case "system":
s.bus, err = dbus.SystemBus()
default:
s.bus, err = dbus.Dial(bus)
}
if err != nil {
return nil, err
}
if !s.bus.SupportsUnixFDs() {
return nil, errors.New("DBus connection does not support file descriptors")
}
s.path = dbus.ObjectPath("/com/firelizzard/teasvc/Server")
go s.handleSignals()
err = s.bus.Export(s, s.path, "com.firelizzard.teasvc.Server")
if err != nil {
return nil, err
}
c := s.bus.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, "type='signal',interface='com.firelizzard.teasvc',member='Ping'")
if c.Err != nil {
return nil, c.Err
}
return s, nil
}
func New() (c *Client, err error) {
c = new(Client)
c.conn, err = dbus.SystemBusPrivate()
if err != nil {
c.conn.Close()
return nil, err
}
methods := []dbus.Auth{dbus.AuthExternal(strconv.Itoa(os.Getuid()))}
err = c.conn.Auth(methods)
if err != nil {
c.conn.Close()
return nil, err
}
err = c.conn.Hello()
if err != nil {
c.conn.Close()
return nil, err
}
c.object = c.conn.Object(dbusInterface, dbus.ObjectPath(dbusPath))
// Setup the filter for the StatusUpdate signals
match := fmt.Sprintf("type='signal',interface='%s',member='%s'", dbusInterface, dbusMember)
call := c.conn.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, match)
if call.Err != nil {
return nil, err
}
c.ch = make(chan *dbus.Signal, signalBuffer)
c.conn.Signal(c.ch)
return c, nil
}
func handleListInterfaces(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bus := getBus(vars)
if bus == nil {
http.NotFound(w, r)
return
}
var s string
err := bus.Object(vars["service"], dbus.ObjectPath(r.URL.Query().Get("objectPath"))).Call("org.freedesktop.DBus.Introspectable.Introspect", 0).Store(&s)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
var n introspect.Node
err = xml.Unmarshal([]byte(s), &n)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
js(w, &n)
}
