kfj001
a87dbe200e
Reconstruct the app's Dart-layer behaviour (blutter over libapp.so, jadx over base.apk — see docs/RE_DART_FINDINGS.md) as working Python, replacing the library stubs with a real local-connect stack. protocol/ (new package, hardware-independent): - commands: CommunicationMode / CommunicationOperate / CommunicationCmd enums with the raw values recovered from the Dart object pool - envelope: CommunicationObject with the app's exact JSON key order - crypto: SN-derived secret key and the position-dependent additive cipher (encrypt/decrypt; radix 16 default, 32 documented alternate) - crc: CRC-16/MODBUS with the app's hi/lo swap + 4-hex string form, CRC32 envelope check, little-endian int16 helpers - framing: BLE frame build/parse (0x5AA5 data / 0x4AA4 ACK magics, CRC slots, MTU chunking) and local-socket int16LE length framing plus a streaming SocketFrameDecoder wifi.py (rewritten): - derive_hotspot_credentials(): the AP_<sn> SSID/password rules (20-char SN branch, full-SN fallback with the app's warning log) - WifiBackend abstraction: NmcliWifiBackend for Linux hosts via nmcli, NoOpWifiBackend for radio-less containers - WifiManager keeps the original stub method names for API compat and adds join_device_hotspot(sn) / leave_device_hotspot() / local_ip() device_local.py (new): LocalDeviceClient for the mode==local path — the /terminal/* HTTP endpoint family (hotspot info, aGate info, overall info, MQTT relay, ...) and direct-connect socket RPC (envelope -> cipher -> length frame -> decrypt -> JSON) with convenience query_* RPCs. docs/RE_DART_FINDINGS.md (new): the full findings — transport selector, wire envelope, crypto, CRCs, MQTT (AWS IoT + Cognito), socket, BLE + ESP provisioning, hotspot credential derivation, local/cloud HTTP layers, and the Java glue — plus the open items; README now links to it. Unconfirmed candidates (local port 18000, cipher key radix, BLE field order, X-Device-* header values) are flagged in the docs and kept configurable in code.
79 lines
1.8 KiB
Python
79 lines
1.8 KiB
Python
"""Pure-protocol building blocks recovered from the app's Dart AOT snapshot.
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Everything here is hardware-independent and covered by unit tests. See
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``docs/RE_DART_FINDINGS.md`` for the reverse-engineering evidence.
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"""
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from .commands import CommunicationCmd, CommunicationMode, CommunicationOperate
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from .crc import (
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CRC16_INIT,
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CRC16_POLY,
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crc16_hex_string,
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crc16_modbus,
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crc32,
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int16_to_le_bytes,
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le_bytes_to_int16,
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)
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from .crypto import (
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ALT_KEY_RADIX,
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DEFAULT_KEY_RADIX,
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decrypt_object,
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encrypt_object,
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generate_secret_key,
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header_len_for,
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split_envelope,
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)
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from .envelope import KEY_ORDER, PLACEHOLDER, CommunicationObject, direct_connect_request
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from .framing import (
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MAGIC_ACK,
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MAGIC_DATA,
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build_ble_ack_frame,
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build_ble_data_frame,
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chunk_for_mtu,
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content_in_data,
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create_ble_frame,
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frame_socket_payload,
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magicEquals,
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magic_in_data,
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sn_in_data,
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verify_frame_crc,
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)
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from .framing import SocketFrameDecoder
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__all__ = [
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"CommunicationCmd",
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"CommunicationMode",
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"CommunicationOperate",
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"CRC16_INIT",
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"CRC16_POLY",
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"crc16_modbus",
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"crc16_hex_string",
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"crc32",
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"int16_to_le_bytes",
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"le_bytes_to_int16",
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"DEFAULT_KEY_RADIX",
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"ALT_KEY_RADIX",
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"generate_secret_key",
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"split_envelope",
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"encrypt_object",
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"decrypt_object",
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"header_len_for",
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"KEY_ORDER",
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"PLACEHOLDER",
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"CommunicationObject",
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"direct_connect_request",
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"MAGIC_ACK",
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"MAGIC_DATA",
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"create_ble_frame",
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"build_ble_data_frame",
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"build_ble_ack_frame",
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"magic_in_data",
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"magicEquals",
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"sn_in_data",
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"content_in_data",
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"verify_frame_crc",
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"chunk_for_mtu",
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"frame_socket_payload",
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"SocketFrameDecoder",
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]
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