Complete reverse-engineering of the DWARFLAB Android app (v3.4.0) protocol
and implementation of a working CLI tool to control DWARF II telescopes.
Analysis (from APK decompilation with jadx):
- Extracted 17 protobuf definitions (382 messages) from embedded descriptors
- Mapped all 323 WebSocket command IDs across 16 modules
- Documented the full protocol: BLE discovery, WebSocket control (port 9900),
RTSP preview, WsPacket envelope (proto v2.3)
- Documented the Android UI structure (screens, navigation, shooting modes)
- Key discovery: telescope responds with type=3 (reply), not type=1 (response),
and several commands are fire-and-forget (RGB, camera open/close)
dwarfctl Go client:
- Protobuf bindings generated from extracted .proto files (397 messages)
- WebSocket transport layer with request-response matching and notification fan-out
- Typed API covering cameras, motors, astrophotography, focus, tracking, system, power
- Cobra CLI with 30+ subcommands and --debug traffic logging
- 57 unit tests (transport round-trip, command routing, proto encoding)
- Validated on real hardware: state, photo, motor slew (all directions/speeds),
focus, RGB, time/location sync all confirmed working
💘 Generated with Crush
Assisted-by: Crush:glm-5.2
140 lines
2.9 KiB
Protocol Buffer
140 lines
2.9 KiB
Protocol Buffer
syntax = "proto3";
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option go_package = "github.com/antitbone/dwarfctl/proto;pb";
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import "base.proto";
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import "notify.proto";
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import "task_center.proto";
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enum VoiceCommandType {
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VOICE_CMD_UNKNOWN = 0;
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VOICE_CMD_GET_STATUS = 1;
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VOICE_CMD_TAKE_PHOTO = 2;
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VOICE_CMD_START_RECORD = 3;
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VOICE_CMD_STOP_RECORD = 4;
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VOICE_CMD_START_TIMELAPSE = 5;
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VOICE_CMD_STOP_TIMELAPSE = 6;
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VOICE_CMD_START_BURST = 7;
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VOICE_CMD_STOP_BURST = 8;
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VOICE_CMD_START_ASTRO = 9;
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VOICE_CMD_STOP_ASTRO = 10;
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VOICE_CMD_START_SENTRY = 11;
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VOICE_CMD_STOP_SENTRY = 12;
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VOICE_CMD_MOVE = 13;
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VOICE_CMD_GOTO_TARGET = 14;
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VOICE_CMD_CALIBRATION = 15;
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VOICE_CMD_AUTO_FOCUS = 16;
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VOICE_CMD_STOP_FOCUS = 17;
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VOICE_CMD_STOP_ALL = 18;
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}
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message ReqVoiceCommand {
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// oneof params
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VoiceCommandType command_type = 1;
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int32 shooting_mode = 2;
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VoicePhotoParams photo_params = 10;
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VoiceRecordParams record_params = 11;
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VoiceTimelapseParams timelapse_params = 12;
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VoiceBurstParams burst_params = 13;
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VoiceAstroParams astro_params = 14;
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VoiceSentryParams sentry_params = 15;
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VoiceMoveParams move_params = 16;
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VoiceGotoParams goto_params = 17;
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VoiceCalibrationParams calibration_params = 18;
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VoiceFocusParams focus_params = 19;
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}
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message VoicePhotoParams {
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int32 camera_type = 1;
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}
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message VoiceRecordParams {
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int32 camera_type = 1;
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int32 duration_seconds = 2;
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}
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message VoiceTimelapseParams {
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int32 camera_type = 1;
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int32 interval_seconds = 2;
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int32 duration_seconds = 3;
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}
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message VoiceBurstParams {
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int32 camera_type = 1;
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int32 count = 2;
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}
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message VoiceAstroParams {
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string target_name = 1;
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double ra = 2;
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double dec = 3;
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int32 index = 4;
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double lon = 5;
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double lat = 6;
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bool auto_goto = 7;
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bool force_start = 8;
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}
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message VoiceSentryParams {
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int32 type = 1;
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}
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message VoiceMoveParams {
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double azimuth_angle = 1;
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double altitude_angle = 2;
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int32 speed = 3;
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}
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message VoiceGotoParams {
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string target_name = 1;
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double ra = 2;
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double dec = 3;
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int32 index = 4;
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double lon = 5;
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double lat = 6;
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int32 shooting_mode = 7;
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}
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message VoiceCalibrationParams {
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double lon = 1;
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double lat = 2;
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}
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message VoiceFocusParams {
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bool is_infinity = 1;
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}
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message ResVoiceCommand {
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// oneof result
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int32 code = 1;
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string message = 2;
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VoiceCommandType command_type = 3;
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VoiceStatusResult status_result = 10;
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VoiceOperationResult operation_result = 11;
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}
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message AstroShootingProgress {
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string target_name = 1;
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int32 captured_count = 2;
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int32 total_count = 3;
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int32 stacked_count = 4;
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int32 progress_percentage = 5;
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int64 elapsed_time = 6;
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int64 remaining_time = 7;
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}
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message VoiceStatusResult {
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ResGetDeviceStateInfo device_state_info = 1;
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AstroShootingProgress astro_progress = 2;
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}
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message VoiceOperationResult {
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bool success = 1;
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string detail_message = 2;
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}
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message ResNotifyVoiceAssistant {
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VoiceCommandType command_type = 1;
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notify.OperationState state = 2;
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string message = 4;
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}
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