Пример #1
0
func (m *AllJoynMessenger) forwardAllJoynMessage(msgId uint32) (err error) {
	log.Printf("****forwardAllJoynMessage****")
	msg := C.Get_AJ_Message()
	reply := C.Get_AJ_ReplyMessage()

	var data uintptr
	var actual C.size_t

	b := make([]byte, 0)
	signature := C.GoString(C.Get_AJ_Message_signature())
	bodyLen := C.Get_AJ_Message_bodyLen()
	for i := 0; i < int(bodyLen); i++ {
		status := C.AJ_UnmarshalRaw((*C.AJ_Message)(msg), (*unsafe.Pointer)(unsafe.Pointer(&data)), C.size_t(1), (*C.size_t)(unsafe.Pointer(&actual)))
		if status == C.AJ_OK {
			b = append(b, C.GoBytes(unsafe.Pointer(data), C.int(actual))...)
			// log.Printf("Reading RAW message, status = %d, actual = %d", status, actual)
		} else {
			log.Printf("Error while reading message body, status = %d", status)
			break
		}
	}
	s, err := dbus.ParseSignature(signature)

	if err != nil {
		log.Printf("Error parsing signature: %s", err)
		return err
	}

	d := dbus.NewDecoder(bytes.NewReader(b), binary.LittleEndian)
	res, err := d.Decode(s)

	if err != nil {
		log.Printf("Error decoding message [%+v] : %s", b, err)
		return err
	}

	//log.Printf("Received application alljoyn message, signature: %s, bytes: %+v, decoded: %+v", signature, b, res)

	objPath := C.GoString(C.Get_AJ_Message_objPath())
	member := C.GoString(C.Get_AJ_Message_member())
	destination := C.GoString(C.Get_AJ_Message_destination())
	iface := C.GoString(C.Get_AJ_Message_iface())

	log.Printf("****Message [objPath, member, iface, destination]: %s, %s, %s, %s", objPath, member, iface, destination)

	for _, service := range m.binding {
		if service.allJoynPath == objPath {
			log.Printf("Found matching dbus service: %+v", service)
			C.AJ_MarshalReplyMsg((*C.AJ_Message)(msg), (*C.AJ_Message)(reply))
			m.callRemoteMethod((*C.AJ_Message)(reply), service.dbusPath, iface+"."+member, res)
			C.AJ_DeliverMsg((*C.AJ_Message)(reply))
			break
		}
	}
	return nil
}
Пример #2
0
func (dec *decoder) decode(s string, depth int) interface{} {
	dec.align(alignment(typeFor(s)))
	switch s[0] {
	case 'y':
		var b [1]byte
		if _, err := dec.in.Read(b[:]); err != nil {
			panic(err)
		}
		dec.pos++
		return b[0]
	case 'b':
		i := dec.decode("u", depth).(uint32)
		switch {
		case i == 0:
			return false
		case i == 1:
			return true
		default:
			panic(FormatError("invalid value for boolean"))
		}
	case 'n':
		var i int16
		dec.binread(&i)
		dec.pos += 2
		return i
	case 'i':
		var i int32
		dec.binread(&i)
		dec.pos += 4
		return i
	case 'x':
		var i int64
		dec.binread(&i)
		dec.pos += 8
		return i
	case 'q':
		var i uint16
		dec.binread(&i)
		dec.pos += 2
		return i
	case 'u':
		var i uint32
		dec.binread(&i)
		dec.pos += 4
		return i
	case 't':
		var i uint64
		dec.binread(&i)
		dec.pos += 8
		return i
	case 'd':
		var f float64
		dec.binread(&f)
		dec.pos += 8
		return f
	case 's':
		length := dec.decode("u", depth).(uint32)
		b := make([]byte, int(length)+1)
		if _, err := io.ReadFull(dec.in, b); err != nil {
			panic(err)
		}
		dec.pos += int(length) + 1
		return string(b[:len(b)-1])
	case 'o':
		return dbus.ObjectPath(dec.decode("s", depth).(string))
	case 'g':
		length := dec.decode("y", depth).(byte)
		b := make([]byte, int(length)+1)
		if _, err := io.ReadFull(dec.in, b); err != nil {
			panic(err)
		}
		dec.pos += int(length) + 1
		sig, err := dbus.ParseSignature(string(b[:len(b)-1]))
		if err != nil {
			panic(err)
		}
		return sig
	case 'v':
		if depth >= 64 {
			panic(FormatError("input exceeds container depth limit"))
		}
		var variant dbus.Variant
		sig := dec.decode("g", depth).(dbus.Signature)
		if len(sig.String()) == 0 {
			panic(FormatError("variant signature is empty"))
		}
		err, rem := validSingle(sig.String(), 0)
		if err != nil {
			panic(err)
		}
		if rem != "" {
			panic(FormatError("variant signature has multiple types"))
		}
		//variant.sig = sig
		//variant.value = dec.decode(sig.String(), depth+1)
		variant = dbus.MakeVariant(dec.decode(sig.String(), depth+1))
		return variant
	case 'h':
		return dbus.UnixFDIndex(dec.decode("u", depth).(uint32))
	case 'a':
		if len(s) > 1 && s[1] == '{' {
			ksig := s[2:3]
			vsig := s[3 : len(s)-1]
			v := reflect.MakeMap(reflect.MapOf(typeFor(ksig), typeFor(vsig)))
			if depth >= 63 {
				panic(FormatError("input exceeds container depth limit"))
			}
			length := dec.decode("u", depth).(uint32)
			// Even for empty maps, the correct padding must be included
			dec.align(8)
			spos := dec.pos
			for dec.pos < spos+int(length) {
				dec.align(8)
				if !isKeyType(v.Type().Key()) {
					panic(dbus.InvalidTypeError{v.Type()})
				}
				kv := dec.decode(ksig, depth+2)
				vv := dec.decode(vsig, depth+2)
				v.SetMapIndex(reflect.ValueOf(kv), reflect.ValueOf(vv))
			}
			return v.Interface()
		}
		if depth >= 64 {
			panic(FormatError("input exceeds container depth limit"))
		}
		length := dec.decode("u", depth).(uint32)
		v := reflect.MakeSlice(reflect.SliceOf(typeFor(s[1:])), 0, int(length))
		// Even for empty arrays, the correct padding must be included
		dec.align(alignment(typeFor(s[1:])))
		spos := dec.pos
		for dec.pos < spos+int(length) {
			ev := dec.decode(s[1:], depth+1)
			v = reflect.Append(v, reflect.ValueOf(ev))
		}
		return v.Interface()
	case '(':
		if depth >= 64 {
			panic(FormatError("input exceeds container depth limit"))
		}
		dec.align(8)
		v := make([]interface{}, 0)
		s = s[1 : len(s)-1]
		for s != "" {
			err, rem := validSingle(s, 0)
			if err != nil {
				panic(err)
			}
			ev := dec.decode(s[:len(s)-len(rem)], depth+1)
			v = append(v, ev)
			s = rem
		}
		return v
	default:
		panic(dbus.SignatureError{Sig: s})
	}
}