Node / meshtastic / Meshtastic-Android / files / core / takserver / src / iosMain / kotlin / org / meshtastic / core / takserver / TakV2Compressor.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.core.takserver

Tff7b72import T7ee787org.meshtastic.core.takserver.TAKPacketV2Conversion.toCoTMessage

Tff7b72import T7ee787org.meshtastic.proto.TAKPacketV2

T8b949e/**

* iOS stub for TakV2Compressor.

*

* TODO: Replace with Swift SDK integration via interop.

*/

Tff7b72internal Tff7b72actual Tff7b72object T56d364TakV2Compressor Tb4b4b4{

Tff7b72actual Tff7b72val Te6edf3MAX_DECOMPRESSED_SIZETb4b4b4: Tffa657Int Tff7b72= T79c0ff4T79c0ff0T79c0ff9T79c0ff6

Tff7b72actual Tff7b72val Te6edf3DICT_ID_NON_AIRCRAFTTb4b4b4: Tffa657Int Tff7b72= T79c0ff0

Tff7b72actual Tff7b72val Te6edf3DICT_ID_AIRCRAFTTb4b4b4: Tffa657Int Tff7b72= T79c0ff1

Tff7b72actual Tff7b72val Te6edf3DICT_ID_UNCOMPRESSEDTb4b4b4: Tffa657Int Tff7b72= T79c0ff0Te6edf3xFF

Tff7b72actual Tff7b72fun Td2a8ffcompressTb4b4b4(Te6edf3packetTb4b4b4: Te6edf3TAKPacketV2Tb4b4b4)Tb4b4b4: Te6edf3ByteArray Tb4b4b4{

T8b949e// iOS: Send uncompressed for now (TAK_TRACKER mode)

Tff7b72val Te6edf3protobufBytes Tff7b72= Te6edf3TAKPacketV2Tb4b4b4.Te6edf3ADAPTERTb4b4b4.Te6edf3encodeTb4b4b4(Te6edf3packetTb4b4b4)

Tff7b72val Te6edf3wirePayload Tff7b72= Te6edf3ByteArrayTb4b4b4(T79c0ff1 Tff7b72+ Te6edf3protobufBytesTb4b4b4.Te6edf3sizeTb4b4b4)

Te6edf3wirePayloadTff7b72[T79c0ff0Tff7b72] Tff7b72= Te6edf3DICT_ID_UNCOMPRESSEDTb4b4b4.Te6edf3toByteTb4b4b4(Tb4b4b4)

Te6edf3protobufBytesTb4b4b4.Te6edf3copyIntoTb4b4b4(Te6edf3wirePayloadTb4b4b4, T79c0ff1Tb4b4b4)

Tff7b72return Te6edf3wirePayload

Tb4b4b4}

Tff7b72actual Tff7b72fun Td2a8ffdecompressToXmlTb4b4b4(Te6edf3wirePayloadTb4b4b4: Te6edf3ByteArrayTb4b4b4)Tb4b4b4: Tffa657String Tb4b4b4{

T8b949e// iOS stub: decompress the packet and convert to CoT XML via the common conversion path.

Tff7b72val Te6edf3packet Tff7b72= Te6edf3decompressTb4b4b4(Te6edf3wirePayloadTb4b4b4)

Tff7b72return Te6edf3packetTb4b4b4.Te6edf3toCoTMessageTb4b4b4(Tb4b4b4)Tff7b72?.Te6edf3toXmlTb4b4b4(Tb4b4b4)

Tff7b72?: Tff7b72throw Te6edf3UnsupportedOperationExceptionTb4b4b4(

Ta5d6ff"Ta5d6ffiOS stub: TAKPacketV2 could not be converted to CoT XML for packet: Tffd700$Te6edf3packetTa5d6ff"Tb4b4b4,

Tb4b4b4)

Tb4b4b4}

Tff7b72actual Tff7b72fun Td2a8ffdecompressTb4b4b4(Te6edf3wirePayloadTb4b4b4: Te6edf3ByteArrayTb4b4b4)Tb4b4b4: Te6edf3TAKPacketV2 Tb4b4b4{

Te6edf3requireTb4b4b4(Te6edf3wirePayloadTb4b4b4.Te6edf3size Tff7b72>Tff7b72= T79c0ff2Tb4b4b4) Tb4b4b4{ Ta5d6ff"Ta5d6ffWire payload too short: Tffd700${Te6edf3wirePayloadTb4b4b4.Te6edf3sizeTffd700}Ta5d6ff bytesTa5d6ff" Tb4b4b4}

Tff7b72val Te6edf3flagsByte Tff7b72= Te6edf3wirePayloadTff7b72[T79c0ff0Tff7b72]Tb4b4b4.Te6edf3toIntTb4b4b4(Tb4b4b4) Te6edf3and T79c0ff0Te6edf3xFF

Tff7b72val Te6edf3payloadBytes Tff7b72= Te6edf3wirePayloadTb4b4b4.Te6edf3copyOfRangeTb4b4b4(T79c0ff1Tb4b4b4, Te6edf3wirePayloadTb4b4b4.Te6edf3sizeTb4b4b4)

T8b949e// iOS stub: only support uncompressed (0xFF) payloads

Tff7b72if Tb4b4b4(Te6edf3flagsByte Tff7b72!Tff7b72= Te6edf3DICT_ID_UNCOMPRESSEDTb4b4b4) Tb4b4b4{

Tff7b72throw Te6edf3UnsupportedOperationExceptionTb4b4b4(

Ta5d6ff"Ta5d6ffiOS zstd decompression not yet implemented. Received dict ID: Tffd700${Te6edf3flagsByte Te6edf3and T79c0ff0Te6edf3x3FTffd700}Ta5d6ff"Tb4b4b4,

Tb4b4b4)

Tb4b4b4}

Te6edf3requireTb4b4b4(Te6edf3payloadBytesTb4b4b4.Te6edf3size Tff7b72<Tff7b72= Te6edf3MAX_DECOMPRESSED_SIZETb4b4b4) Tb4b4b4{

Ta5d6ff"Ta5d6ffPayload size Tffd700${Te6edf3payloadBytesTb4b4b4.Te6edf3sizeTffd700}Ta5d6ff exceeds limit Tffd700$Te6edf3MAX_DECOMPRESSED_SIZETa5d6ff"

Tb4b4b4}

Tff7b72return Te6edf3TAKPacketV2Tb4b4b4.Te6edf3ADAPTERTb4b4b4.Te6edf3decodeTb4b4b4(Te6edf3payloadBytesTb4b4b4)

Tb4b4b4}

Tb4b4b4}