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Author SHA1 Message Date
kamilkrzywda ba5e60daf0 Fix BigInt serialization in GET /api/device (500 on real hardware) (#14)
CI / build + unit (push) Successful in 18s
2026-09-24 23:14:32 +02:00
kamilkrzywda 4beaa377c4 Device info endpoint + richer node summaries (GET /api/device, MCP device_info) (#13)
CI / build + unit (push) Successful in 36s
2026-09-24 22:46:40 +02:00
kamilkrzywda b31fb35464 MCP server at POST /mcp (official SDK, stateless Streamable HTTP) (#11)
CI / build + unit (push) Successful in 1m6s
2026-09-24 20:39:45 +02:00
kamilkrzywda 108aa400d3 Publish on 'test' channel (index 3) by default (#10)
CI / build + unit (push) Successful in 34s
2026-09-24 19:44:11 +02:00
kamilkrzywda f640f6658c Send to by node name or broadcast sentinel (GET-free resolution via node DB) (#9)
CI / build + unit (push) Successful in 33s
2026-09-24 16:47:51 +02:00
kamilkrzywda 57ad27d66f Message history with delivery tracking (GET /api/messages) (#8)
CI / build + unit (push) Successful in 32s
2026-09-24 16:19:32 +02:00
kamilkrzywda 5292303786 Node database: collect nodes during sync, expose GET /api/nodes (#7)
CI / build + unit (push) Successful in 39s
2026-09-24 15:37:03 +02:00
kamilkrzywda adfbc9800b Send want_config_id on connect to trigger initial sync (#6)
CI / build + unit (push) Successful in 39s
Send want_config_id on connect to trigger initial sync (#6)

Firmware only streams myInfo/channels/configComplete after receiving a
ToRadio with want_config_id — the service previously wrote nothing on
connect, so /api/channels stayed [] and myNodeNum null. v0.1.4.
2026-09-23 22:42:03 +02:00
kamilkrzywda 3062f40899 feat: pin sends to testowy channel (index 2), never primary (v0.1.3) (#5)
CI / build + unit (push) Successful in 36s
feat: pin sends to testowy channel (index 2), never primary (v0.1.3)
2026-09-23 22:06:01 +02:00
kamilkrzywda 266aadf635 ci: Gitea Actions test pipeline (v0.1.2) (#4)
CI / build + unit (push) Successful in 40s
ci: Gitea Actions test pipeline (v0.1.2)
2026-09-23 21:53:57 +02:00
kamilkrzywda 22a209e654 fix: bridge port is 4403, not 4003 (v0.1.1) (#3)
fix: bridge port is 4403, not 4003 (v0.1.1)
2026-09-23 21:40:36 +02:00
17 changed files with 2221 additions and 69 deletions
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@@ -0,0 +1,69 @@
name: CI
on:
push:
branches: [main]
pull_request:
branches: [main]
workflow_dispatch:
jobs:
ci:
name: build + unit
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v4
# The runner provides a working docker CLI out of the box (full-dind) — no endpoint
# resolution needed, same as flight's CI.
- name: Setup Node
uses: actions/setup-node@v4
with:
node-version: 22
# Job-level dep cache via the runner's built-in cache server. continue-on-error: an
# unreachable/broken cache server must never break the run (flight convention). npm ci
# wipes node_modules, so cache npm's own tarball store instead — restoring node_modules
# would just be deleted again. No explicit save step: caches marked by the restore step
# are uploaded automatically at job end.
- name: Restore deps cache
uses: actions/cache@v4
continue-on-error: true
with:
path: $HOME/.npm
key: ${{ runner.os }}-deps-npm-${{ hashFiles('package-lock.json') }}
# Retried: the runner's outbound network/DNS is flaky (transient EAI_AGAIN seen in CI).
- name: Install dependencies
run: |
set -u
ok=0
for i in 1 2 3; do
if npm ci; then ok=1; break; fi
echo "::warning::dependency install attempt $i/3 failed (likely transient network) — retrying in 5s" >&2
sleep 5
done
[ "$ok" = "1" ] || { echo "::error::dependency install failed after 3 attempts" >&2; exit 1; }
- name: Build
run: npm run build
# vitest auto-appends results to $GITHUB_STEP_SUMMARY when GITHUB_ACTIONS=true — no
# extra summary step needed (same as flight relies on for its unit stage).
- name: Unit tests
run: npm test
# Verifies the production Dockerfile builds — the deploy path is `docker compose up -d --build`.
# Build only, nothing runs, so no cleanup/prune steps are needed (unlike flight's e2e stack).
# Retried: same flaky runner network as dep install.
- name: Docker image build
run: |
set -u
ok=0
for i in 1 2 3; do
if docker compose build --progress=plain; then ok=1; break; fi
echo "::warning::docker build attempt $i/3 failed (likely transient network) — retrying in 5s" >&2
sleep 5
done
[ "$ok" = "1" ] || { echo "::error::docker image build failed after 3 attempts" >&2; exit 1; }
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## API
1. **Live base URL** — `http://bot.dev.kkhost.pl` (Traefik → docker-compose stack on this host; container port 3000 via external network dev_net, no published ports).
2. **Endpoints** — all under the `/api` global prefix: `GET /api/status` (`{ connected, myNodeNum, host, port }`), `POST /api/send` (body `{ "text": "...", "to"?: <node number | "!b" | "broadcast"> }`, returns `{ id }`), and `GET /api/channels` (the device's Meshtastic channels as `{ index, name, uplinkEnabled, downlinkEnabled }[]`; psk/keys redacted). Scalar API docs are served at `/` (OpenAPI JSON at `/docs-json`). Keep this list in sync with the controller.
2. **Endpoints** — all under the `/api` global prefix: `GET /api/status` (`{ connected, myNodeNum, host, port }`), `POST /api/send` (body `{ "text": "...", "to"?: <node number | node name | "!b" | "broadcast"> }` — numbers pass through as-is (integer 1..0xffffffff), names resolve like `GET /api/nodes/:id`, omitted/""/"!b"/"broadcast" → broadcast; unknown or ambiguous targets are a 400. Returns `{ id }`), `GET /api/channels` (the device's Meshtastic channels as `{ index, name, uplinkEnabled, downlinkEnabled }[]`; psk/keys redacted), `GET /api/device` (device info captured during the initial sync: `{ myNodeNum, firmwareVersion?, metadata?, localConfig: {<section>: ...}, moduleConfig: {<module>: ...} }` — DeviceMetadata as-is plus per-section Config/ModuleConfig messages; security publicKey/privateKey/adminKey and network wifiPsk redacted to `"REDACTED"`; in-memory, reset on reconnect), `GET /api/messages` (message history newest first: rx text with `from`, tx sends with `to` + `status` pending→delivered/failed via routing ACKs — broadcasts stay pending because firmware strips want_ack; last 100, in-memory, reset on reconnect), `GET /api/nodes` (known nodes sorted by num as `{ num, longName?, shortName?, hwModel?, batteryLevel?, lastHeard: number|null, position?: { lat, lon, alt? }, snr?, hopsAway?, viaMqtt? }[]`, from the initial sync plus live POSITION_APP updates; reset on reconnect) and `GET /api/nodes/:id` (lookup by exact node number/numeric string, then case-insensitive exact long/short name, else unique substring; 404 when ambiguous or missing). Scalar API docs are served at `/` (OpenAPI JSON at `/docs-json`). Keep this list in sync with the controller. All `POST /api/send` traffic targets channel index 3 (`test`) on purpose — never the primary channel; override via `MESH_SEND_CHANNEL` (default `3`).
3. **MCP endpoint** — `POST /mcp` (excluded from the `/api` prefix in main.ts, like Scalar at `/`): an in-process MCP server over the official SDK's Streamable HTTP transport in stateless mode (`sessionIdGenerator: undefined`, fresh `McpServer` + transport per request). Tools map 1:1 to MeshService methods: `mesh_status`, `send_message(text, to?)` (same resolution as `POST /api/send`; errors surface as tool errors with the same messages), `list_channels`, `list_nodes`, `get_node(id)` (tool error when missing/ambiguous), `get_messages`, `device_info` (same redaction as `GET /api/device`). Results are JSON in a text content block; sends ride channel index 3 like everything else. Note: the SDK's root entry is broken upstream (#2273) — import via subpaths (`@modelcontextprotocol/sdk/server/mcp.js` etc.).
## Other
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# Changelog
## v0.7.1 — 2026-09-24 21:10
- Fix `GET /api/device` and MCP `device_info` crashing with `TypeError: Do not know how to serialize a BigInt` on live hardware (fw 2.7.15): protobuf-es decodes proto `uint64` fields as native JS `bigint`, which Express' `res.json`/`JSON.stringify` reject, and `MeshService.deviceInfo()` passed raw decoded proto objects through unconverted. Known affected fields: `Config.PowerConfig.powermonEnables` (in `localConfig.power`) and host-metrics byte counters (`freememBytes`/`diskfree*`).
- Fix at the single choke point: one small recursive converter (`jsonSafe`, bigint → decimal string, plain objects/arrays/primitives pass through) applied in `deviceInfo()` to everything that comes from raw decoded proto messages — DeviceMetadata plus every localConfig and moduleConfig section. No per-field patching; any uint64 field in those messages is covered generically. Values that were bigint now serialize as strings (e.g. `"powermonEnables": "123"`); no other endpoint/shape changes, redaction logic untouched.
- Tests: new device-info spec feeds a power config section frame with `powermonEnables` set to a real bigint through the fake bridge and asserts the value comes back as its string form (`"123"`) and that `JSON.stringify(deviceInfo())` succeeds — the old fixtures never set a uint64 field, which is why this slipped past the suite.
## v0.7.0 — 2026-09-24 20:21
- New `GET /api/device` endpoint (and matching MCP tool `device_info`, now seven tools): device info captured during the initial sync — this device's node number, firmware version and metadata (`meshtastic.DeviceMetadata` as-is; it carries no key material), plus per-section config and module-config messages keyed by section name. In-memory only, reset on every bridge reconnect like channels/nodes.
- `MeshService.deviceInfo()` captures the new FromRadio cases during sync: `metadata` (DeviceMetadata), `config` (one `meshtastic.Config` per section — oneof `payloadVariant` cases device/position/power/network/display/lora/bluetooth/security/sessionkey/deviceUi) and `moduleConfig` (one ModuleConfig per module). Verified against the installed `@meshtastic/protobufs` 2.8.0: FromRadio carries `meshtastic.Config`, not `LocalConfig` (that type lives in a separate localonly namespace and is not part of FromRadio).
- **Mandatory redaction (trust boundary):** key material never leaves the process — security section `publicKey`/`privateKey`/`adminKey` and network section `wifiPsk` are replaced with `"REDACTED"` in all output.
- Node summaries (`GET /api/nodes`, `GET /api/nodes/:id`, MCP `list_nodes`/`get_node`) gain optional fields from the NodeInfo: `snr` (dB), `hopsAway`, `viaMqtt` — present only when the device reported them. Note: `meshtastic.NodeInfo` in 2.8.0 has no firmware version field, so per-node firmwareVersion is not captured (device-level firmware version comes from DeviceMetadata via `/api/device`).
- Swagger: `GET /api/device` documented with the redaction note and an example; nodes endpoint example/description extended for the new optional fields. README + AGENTS.md endpoint lists updated.
- Tests: fake-bridge gains `metadataFrame`, `configSectionFrame`, `moduleConfigSectionFrame`; new device-info specs (metadata → firmwareVersion, config/module-config sections captured with security key material absent from the JSON output), NodeInfo snr/hopsAway/viaMqtt in summaries; MCP spec updated to seven tools incl. a `device_info` call check.
## v0.6.0 — 2026-09-24 18:28
- New MCP (Model Context Protocol) server endpoint at `POST /mcp` (outside the `/api` prefix, like Scalar at `/`), served in-process via the official `@modelcontextprotocol/sdk` Streamable HTTP transport in stateless mode (`sessionIdGenerator: undefined`; a fresh `McpServer` + transport per request). Six tools map 1:1 to existing `MeshService` methods with no new logic: `mesh_status`, `send_message(text, to?)` (same target resolution as `POST /api/send` — omitted/""/"!b"/"broadcast" → broadcast, numbers pass through, names via the node DB; resolution errors surface as tool errors with the same messages), `list_channels`, `list_nodes`, `get_node(id)` (tool error when missing/ambiguous), and `get_messages`. Tool results are JSON in a text content block.
- New dependency: `@modelcontextprotocol/sdk` (^1.30.1; zod comes with it). Note: the SDK's root entry is broken in all published 1.x tarballs (upstream issue #2273 — the exports map points to a dist index that was never shipped), so imports use the documented subpaths (`@modelcontextprotocol/sdk/server/mcp.js`, `.../server/streamableHttp.js`, `.../inMemory.js`, `.../client/index.js`).
- Test helpers shared by both specs extracted from `mesh.service.spec.ts` into `src/mesh/fake-bridge.ts` (fake bridge, waitFor, nodeInfoFrame, KAMIL fixtures); new `mcp.controller.spec.ts` drives the MCP server over an in-memory transport pair — all six tools listed with descriptions/schemas, and mesh_status / send_message (broadcast + name resolution + error messages) / get_node / list_channels / list_nodes / get_messages return correct shapes.
- README gains an MCP section; AGENTS.md endpoint list updated for `/mcp`.
## v0.5.0 — 2026-09-24 17:37
- Publishing channel moved from `testowy` (index 2) to the new `test` channel (index 3); `MESH_SEND_CHANNEL` default is now `3`. All docs/comments referencing the old pinning updated accordingly.
## v0.4.0 — 2026-09-24 14:39
- `POST /api/send` now accepts node names and explicit broadcast sentinels in `to`: omitted/"" or `"!b"`/`"broadcast"` (case-insensitive, trimmed) → broadcast address `0xffffffff`; numbers pass through as-is (must be an integer in 1..0xffffffff); numeric strings are parsed the same way; anything else is looked up by name via the existing node DB lookup (exact long/short name, then unique substring). Unknown or ambiguous targets are a 400 with `no node matching '<to>'`. New service method `MeshService.resolveDest(to?)` does the resolution — `sendText()` keeps its resolved-number signature.
- Swagger: `SendTextDto.to` documented as `number | string` with the full resolution order and the DM-vs-broadcast caveat (DMs are unicast wantAck-tracked via `GET /api/messages`; broadcasts stay pending because firmware strips want_ack); `@ApiOperation` notes all sends still ride channel index 2 (`testowy`) regardless of DM or broadcast.
- README + AGENTS.md endpoint lists updated for the new `to` semantics.
- Unit tests: `resolveDest` coverage on the fake bridge — omitted/""/"!b"/"BROADCAST" → broadcast, number passthrough, numeric string, exact longName match → num (node DB seeded via framed FromRadio nodeInfo), unknown name → `no node matching`, and invalid numbers (0, negative, non-integer, > 0xffffffff) rejected.
## v0.3.0 — 2026-09-24 14:08
- Message history with delivery tracking, exposed as `GET /api/messages` (newest first): inbound TEXT_MESSAGE_APP packets (`dir:'rx'`, with `from`) and our sends (`dir:'tx'`, with `to` + `status`). tx records start `pending` and move to `delivered`/`failed` when the routing ACK/NACK arrives — ROUTING_APP packets carry a serialized `meshtastic.Routing` in `Data.payload` whose oneof variant is `errorReason` (`Routing_Error`: 0 NONE = delivered, anything else failed with a human-readable `ackError`, e.g. NO_ROUTE/GOT_NAK/TIMEOUT, fallback `reason <n>`), matched to our sends via `Data.requestId`. Broadcasts stay `pending` because firmware strips want_ack pre-TX (documented behavior, no timer). History is a bounded in-memory buffer of the last 100 records (newest kept) and resets on every bridge reconnect alongside channels/nodes.
- Codec: new `PORT_ROUTING_APP = 5` constant (verified against the installed `@meshtastic/protobufs` PortNum enum), `decodeRouting()` for ROUTING_APP payloads, and `describeRoutingError()` which maps a Routing.Error code to its name from the installed package's `Mesh.Routing_Error` enum.
- Swagger: `GET /api/messages` documented with the pending→delivered/failed lifecycle, the broadcast caveat, and an example matching the record shape; README + AGENTS.md endpoint lists updated.
## v0.2.0 — 2026-09-24 13:08
- Node database collected during the initial sync (`FromRadio.nodeInfo` frames, upserted by node number) and kept fresh by live `POSITION_APP` packets (the Position is serialized in `Data.payload`; unknown senders get a stub entry). The map resets on every bridge reconnect alongside channels.
- New endpoints: `GET /api/nodes` — lean summaries sorted by node number as `{ num, longName?, shortName?, hwModel?, batteryLevel?, lastHeard (epoch secs | null), position? { lat, lon, alt? } }[]`; names/hwModel/battery appear only when the device reported them, `hwModel` is the enum's string name (UNSET omitted), and `position` only when both coordinates are known. `GET /api/nodes/:id` — lookup by exact node number (numbers/numeric strings), then case-insensitive exact long/short name, else unique case-insensitive substring; 404 with a clear message when nothing or more than one node matches.
- Codec: new `PORT_POSITION_APP = 3` constant (verified against the installed `@meshtastic/protobufs` PortNum enum), `decodePosition()` for POSITION_APP payloads, and `loadHwModelNames()` reverse lookup of the HardwareModel enum.
- Swagger docs made genuinely useful: `Mesh` tag on the controller (description via `DocumentBuilder.addTag` — v12's `ApiTagOptions` has no description field) plus `@ApiOperation` summary/description and `@ApiResponse` examples on all endpoints, existing and new.
- Unit tests build real framed FromRadio bytes for nodeInfo/POSITION_APP: sync collection + summary shape (lat/lon = value × 1e-7, battery), stub entry from an unknown POSITION_APP sender, lookup ladder (exact num / numeric string / exact name / unique substring) with ambiguous and missing → null, and reconnect reset.
## v0.1.4 — 2026-09-23 20:33
- Send a `ToRadio` with `want_config_id` (random non-zero uint32 nonce) on every bridge connect, so the firmware streams its initial sync data (`myInfo`, channels, `config_complete_id`) — previously nothing was written on connect, which is why `/api/channels` stayed empty and `myNodeNum` stayed null in production. New codec helper `buildWantConfigToRadio`; unit test captures the outbound frame on the fake bridge, asserts the `wantConfigId` oneof case with a non-zero value, then feeds back `myInfo` + `configCompleteId` frames and checks service state.
## v0.1.3 — 2026-09-23 19:58
- Sends are now pinned to the test channel `testowy` (channel index 2) instead of the hardcoded primary channel (`channel: 0`). The target channel is configurable via `MESH_SEND_CHANNEL` (default `2`) and parsed once at service construction; `buildTextToRadio` takes the channel index as a parameter. Unit tests now decode the outbound ToRadio frame on the fake bridge and assert `packet.channel === 2` on the default send path.
## v0.1.2 — 2026-09-23 19:51
- Added a Gitea Actions CI pipeline (`.gitea/workflows/ci.yml`), mirroring flight's runner conventions: on push/PR to `main` (plus manual dispatch) one job runs `npm ci`, `nest build`, the vitest unit suite, and a production Docker image build — with retry loops for the runner's flaky uplink. No app code changed.
## v0.1.1 — 2026-09-23 19:38
- Fixed the default bridge port to `4403`, the meshtastic-serial-bridge's actual TCP port (the old value pointed at a closed port). Updated the `MESH_PORT` default in code, the docker-compose environment, and docs.
## v0.1.0 — 2026-09-23 18:54
- New `GET /api/channels` endpoint listing the device's Meshtastic channels as `{ index, name, uplinkEnabled, downlinkEnabled }`; psk/keys are redacted and never exposed over HTTP. Channels are collected from `FromRadio.channel` frames streamed during initial sync (before `config_complete_id`) and reset on every bridge reconnect so stale data is dropped after a disconnect.
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@@ -49,7 +49,7 @@ Credentials are deliberately NOT stored in this file — see §1 for where they
## 7. App architecture quick map
- `src/mesh/codec.ts` — framing (`extractFrames`, `frame`) + protobuf encode/decode (`decodeFromRadio`, `buildTextToRadio`); unit tests in codec.spec.ts.
- `src/mesh/mesh.service.ts` — TCP connection to the bridge (MESH_HOST/MESH_PORT env, defaults 192.168.1.4:4003), buffer + frame extraction on data, FromRadio dispatch (`myInfo` → myNodeNum, `channel` → upsert into channelMap keyed by index — reset on every reconnect, `configCompleteId` → ready log, `packet` → text-message logging), fixed-interval reconnect (MESH_RECONNECT_MS, default 5 s).
- `src/mesh/mesh.service.ts` — TCP connection to the bridge (MESH_HOST/MESH_PORT env, defaults 192.168.1.4:4403), buffer + frame extraction on data, FromRadio dispatch (`myInfo` → myNodeNum, `channel` → upsert into channelMap keyed by index — reset on every reconnect, `configCompleteId` → ready log, `packet` → text-message logging), fixed-interval reconnect (MESH_RECONNECT_MS, default 5 s).
- `src/mesh/mesh.controller.ts` — `GET /status`, `POST /send`, `GET /channels` (all under the `/api` global prefix set in main.ts; Scalar docs at `/`, OpenAPI JSON at `/docs-json`).
## 8. Finding current state (this file keeps no snapshots)
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# mesh-bot
Minimal NestJS bot for Meshtastic. Long-running service that TCP-connects to a
Meshtastic serial bridge (raw socat pipe) at `192.168.1.4:4003`, parses inbound
protobuf frames, logs received text messages, and exposes HTTP endpoints to send text.
Meshtastic serial bridge (raw socat pipe) at `192.168.1.4:4403`, sends
`want_config_id` on connect so the firmware streams its initial sync data,
parses inbound protobuf frames, logs received text messages, and exposes HTTP
endpoints to send text.
## Local run
@@ -24,8 +26,12 @@ Exposed via Traefik only (no published ports) at `http://bot.dev.kkhost.pl`.
All API endpoints live under the `/api` prefix:
- `GET /api/status` — `{ connected, myNodeNum, host, port }`
- `POST /api/send` — body `{ "text": "...", "to"?: <node number | "!b" | "broadcast"> }`, returns `{ id }`
- `POST /api/send` — body `{ "text": "...", "to"?: <node number | node name | "!b" | "broadcast"> }`, returns `{ id }`. Numbers pass through as-is (integer in 1..0xffffffff); names resolve like `GET /api/nodes/:id` (exact long/short name, then unique substring) — unknown or ambiguous targets are a 400
- `GET /api/channels` — the device's Meshtastic channels as `{ index, name, uplinkEnabled, downlinkEnabled }[]` (psk/keys are redacted; empty until the initial sync completes)
- `GET /api/device` — device info captured during the initial sync: `{ myNodeNum, firmwareVersion?, metadata?, localConfig: {<section>: ...}, moduleConfig: {<module>: ...} }`. Key material is never exposed (security publicKey/privateKey/adminKey and network wifiPsk are replaced with `"REDACTED"`); in-memory only, reset on every bridge reconnect
- `GET /api/messages` — message history, newest first: inbound text (`dir:'rx'`, with `from`) and our sends (`dir:'tx'`, with `to` + `status`). tx records start `pending` and move to `delivered`/`failed` (with human-readable `ackError`) when the routing ACK/NACK arrives; broadcasts stay `pending` because firmware strips want_ack before TX. In-memory only, last 100, reset on every bridge reconnect
- `GET /api/nodes` — known mesh nodes as `{ num, longName?, shortName?, hwModel?, batteryLevel?, lastHeard: number|null, position?: { lat, lon, alt? }, snr?, hopsAway?, viaMqtt? }[]`, sorted by node number. Collected during the initial sync plus live position updates; names/hwModel/battery appear only when reported, `lastHeard` is epoch seconds (null = never heard), `position` only when both coordinates are known, and snr/hopsAway/viaMqtt only when carried by the NodeInfo
- `GET /api/nodes/:id` — one node looked up by exact node number (numbers or numeric strings), then case-insensitive exact long/short name, else the unique case-insensitive substring match; 404 when nothing or more than one node matches
Interactive API docs (Scalar) are served at `/`, with the OpenAPI JSON at
`/docs-json`.
@@ -35,15 +41,54 @@ curl http://localhost:3000/api/status
curl -X POST http://localhost:3000/api/send -H 'content-type: application/json' -d '{"text":"hi"}'
curl -X POST http://localhost:3000/api/send -H 'content-type: application/json' -d '{"to":123456789,"text":"hello"}'
curl http://localhost:3000/api/channels
curl http://localhost:3000/api/device
curl http://localhost:3000/api/messages
curl http://localhost:3000/api/nodes
curl http://localhost:3000/api/nodes/kamil
```
`to` omitted, `"!b"`, or `"broadcast"` sends to the broadcast address `0xffffffff`.
`to` omitted, `"!b"`, or `"broadcast"` (case-insensitive) sends to the
broadcast address `0xffffffff`; anything else is a node number or name.
DMs are unicast and wantAck-tracked via `GET /api/messages`; broadcasts stay
pending because firmware strips want_ack before TX.
All sends always target channel index 3 (`test`) — never the primary
channel. Override with `MESH_SEND_CHANNEL`.
## MCP server
The bot also exposes an MCP (Model Context Protocol) endpoint at
`POST /mcp` (outside the `/api` prefix), served in-process over the SDK's
Streamable HTTP transport in stateless mode. It maps 1:1 to the REST
endpoints — no new logic, same channel pinning:
- `mesh_status` — bridge connection state (`{ connected, myNodeNum, host, port }`)
- `send_message(text, to?)` — send a text message; `to` resolves like `POST /api/send` (omitted/""/"!b"/"broadcast" → broadcast, number or numeric string → node number, else name lookup); returns `{ id }`; unknown/ambiguous targets are tool errors
- `list_channels` — device channels (keys redacted)
- `list_nodes` — known nodes as lean summaries
- `get_node(id)` — one node by number or name; tool error when missing/ambiguous
- `get_messages` — message history, newest first (last 100, tx records carry delivery status)
- `device_info` — device info from the initial sync: node number, firmware version, metadata and per-section config/module-config (key material redacted as `"REDACTED"`)
Point any MCP client at it (Streamable HTTP URL):
```json
{ "mcpServers": { "mesh-bot": { "url": "http://bot.dev.kkhost.pl/mcp" } } }
```
```sh
curl -X POST http://localhost:3000/mcp \
-H 'content-type: application/json' \
-H 'accept: application/json, text/event-stream' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
```
## Env vars
- `MESH_HOST` (default `192.168.1.4`) — bridge host
- `MESH_PORT` (default `4003`) — bridge port
- `MESH_PORT` (default `4403`) — bridge port
- `MESH_RECONNECT_MS` (default `5000`) — reconnect interval in ms
- `MESH_SEND_CHANNEL` (default `3`) — channel index all sends target (`test`; never the primary channel)
- `PORT` (default `3000`) — HTTP listen port
Note: the serial bridge accepts only ONE client at a time — if another app is
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@@ -3,7 +3,7 @@ services:
build: .
environment:
MESH_HOST: 192.168.1.4
MESH_PORT: '4003'
MESH_PORT: '4403'
restart: unless-stopped
networks:
- dev_net
+211 -8
View File
@@ -1,16 +1,17 @@
{
"name": "mesh-bot",
"version": "0.0.1",
"version": "0.5.0",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"name": "mesh-bot",
"version": "0.0.1",
"version": "0.5.0",
"license": "UNLICENSED",
"dependencies": {
"@bufbuild/protobuf": "^2.15.0",
"@meshtastic/protobufs": "^2.8.0",
"@modelcontextprotocol/sdk": "^1.30.1",
"@nestjs/common": "^12.0.1",
"@nestjs/core": "^12.0.1",
"@nestjs/platform-express": "^12.0.1",
@@ -221,6 +222,18 @@
"node": ">=0.1.90"
}
},
"node_modules/@hono/node-server": {
"version": "2.1.1",
"resolved": "https://registry.npmjs.org/@hono/node-server/-/node-server-2.1.1.tgz",
"integrity": "sha512-ELuehkj5VCBdgEw9zs+ivkKwyzzUCSQuE96YmiPvn1ECBoZCczbFXJLeEGMTYjphP6gydh4pHMqEYPVMYUVgQg==",
"license": "MIT",
"engines": {
"node": ">=20"
},
"peerDependencies": {
"hono": "^4"
}
},
"node_modules/@inquirer/ansi": {
"version": "2.0.8",
"resolved": "https://registry.npmjs.org/@inquirer/ansi/-/ansi-2.0.8.tgz",
@@ -617,6 +630,46 @@
"integrity": "sha512-p68VexhnH7ojf3U27RdryUDqnKJgKaWUbCL96vJR7N0mqDuhKG5OIECk3sCPPdynxjk+yoVhRkScqtv5KQjzsw==",
"license": "MIT"
},
"node_modules/@modelcontextprotocol/sdk": {
"version": "1.30.1",
"resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.30.1.tgz",
"integrity": "sha512-H2HxLvC3HDNybePJaLdSrU1hhUK5iQw+WvV1b01myFyI7sdVGe1u/IPTE5D9fGCiJDVtgMV/lmFkQXLmQyIFYA==",
"license": "MIT",
"dependencies": {
"@hono/node-server": "^1.19.9 || ^2.0.5",
"ajv": "^8.17.1",
"ajv-formats": "^3.0.1",
"content-type": "^1.0.5",
"cors": "^2.8.5",
"cross-spawn": "^7.0.5",
"eventsource": "^3.0.2",
"eventsource-parser": "^3.0.0",
"express": "^5.2.1",
"express-rate-limit": "^8.2.1",
"hono": "^4.11.4",
"jose": "^6.1.3",
"json-schema-typed": "^8.0.2",
"pkce-challenge": "^5.0.0",
"raw-body": "^3.0.0",
"zod": "^3.25 || ^4.0",
"zod-to-json-schema": "^3.25.1"
},
"engines": {
"node": ">=18"
},
"peerDependencies": {
"@cfworker/json-schema": "^4.1.1",
"zod": "^3.25 || ^4.0"
},
"peerDependenciesMeta": {
"@cfworker/json-schema": {
"optional": true
},
"zod": {
"optional": false
}
}
},
"node_modules/@nestjs/cli": {
"version": "12.0.5",
"resolved": "https://registry.npmjs.org/@nestjs/cli/-/cli-12.0.5.tgz",
@@ -2179,7 +2232,6 @@
"version": "8.20.0",
"resolved": "https://registry.npmjs.org/ajv/-/ajv-8.20.0.tgz",
"integrity": "sha512-Thbli+OlOj+iMPYFBVBfJ3OmCAnaSyNn4M1vz9T6Gka5Jt9ba/HIR56joy65tY6kx/FCF5VXNB819Y7/GUrBGA==",
"dev": true,
"license": "MIT",
"dependencies": {
"fast-deep-equal": "^3.1.3",
@@ -2196,7 +2248,6 @@
"version": "3.0.1",
"resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-3.0.1.tgz",
"integrity": "sha512-8iUql50EUR+uUcdRQ3HDqa6EVyo3docL8g5WJ3FNcWmu62IbkGUue/pEyLBW8VGKKucTPgqeks4fIU1DA4yowQ==",
"dev": true,
"license": "MIT",
"dependencies": {
"ajv": "^8.0.0"
@@ -2764,6 +2815,20 @@
"url": "https://opencollective.com/express"
}
},
"node_modules/cross-spawn": {
"version": "7.0.6",
"resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
"integrity": "sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==",
"license": "MIT",
"dependencies": {
"path-key": "^3.1.0",
"shebang-command": "^2.0.0",
"which": "^2.0.1"
},
"engines": {
"node": ">= 8"
}
},
"node_modules/debug": {
"version": "4.4.3",
"resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
@@ -2991,6 +3056,27 @@
"node": ">= 0.6"
}
},
"node_modules/eventsource": {
"version": "3.0.7",
"resolved": "https://registry.npmjs.org/eventsource/-/eventsource-3.0.7.tgz",
"integrity": "sha512-CRT1WTyuQoD771GW56XEZFQ/ZoSfWid1alKGDYMmkt2yl8UXrVR4pspqWNEcqKvVIzg6PAltWjxcSSPrboA4iA==",
"license": "MIT",
"dependencies": {
"eventsource-parser": "^3.0.1"
},
"engines": {
"node": ">=18.0.0"
}
},
"node_modules/eventsource-parser": {
"version": "3.1.1",
"resolved": "https://registry.npmjs.org/eventsource-parser/-/eventsource-parser-3.1.1.tgz",
"integrity": "sha512-EKN1vKAMcZ8MlYMpaNuxN6R9yakzH6uajHcHVTqWJzvu5pWw9DyhbP35HH8MVBQ+dZjAfDxk+A8NiR9KWaXiyQ==",
"license": "MIT",
"engines": {
"node": ">=18.0.0"
}
},
"node_modules/expect-type": {
"version": "1.4.0",
"resolved": "https://registry.npmjs.org/expect-type/-/expect-type-1.4.0.tgz",
@@ -3044,6 +3130,25 @@
"url": "https://opencollective.com/express"
}
},
"node_modules/express-rate-limit": {
"version": "8.7.0",
"resolved": "https://registry.npmjs.org/express-rate-limit/-/express-rate-limit-8.7.0.tgz",
"integrity": "sha512-hOwV7WOxXfjRpAM1DSJWZDXx3GhplwD8IfwuwvogD8i1Qnkgosw/H45s4ZnFAUHDAhPjlY9hLBvJhKmGMyY26g==",
"license": "MIT",
"dependencies": {
"debug": "^4.4.3",
"ip-address": "^10.2.0"
},
"engines": {
"node": ">= 16"
},
"funding": {
"url": "https://github.com/sponsors/express-rate-limit"
},
"peerDependencies": {
"express": ">= 4.11"
}
},
"node_modules/external-editor": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/external-editor/-/external-editor-3.1.0.tgz",
@@ -3083,7 +3188,6 @@
"version": "3.1.3",
"resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
"integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
"dev": true,
"license": "MIT"
},
"node_modules/fast-safe-stringify": {
@@ -3113,7 +3217,6 @@
"version": "3.1.8",
"resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.8.tgz",
"integrity": "sha512-GZMtZUTNRpOVIECoXwLNZS5xUGE+mVNbTB8h/7Rwh2TFWcBQiPzTgyZi05BF9UMZKkLJv8XBRJTlU7zg8+ZfMg==",
"dev": true,
"funding": [
{
"type": "github",
@@ -3428,6 +3531,15 @@
"node": ">= 0.4"
}
},
"node_modules/hono": {
"version": "4.13.9",
"resolved": "https://registry.npmjs.org/hono/-/hono-4.13.9.tgz",
"integrity": "sha512-7dMkQmZoC4E6F7AtaQSPhlWAdnBti+j7rreMZl8QB4jFiEhP9TWbGWUMi8WYzBCgmgulxuvLQupKqo+Co6Omyg==",
"license": "MIT",
"engines": {
"node": ">=16.9.0"
}
},
"node_modules/html-escaper": {
"version": "2.0.2",
"resolved": "https://registry.npmjs.org/html-escaper/-/html-escaper-2.0.2.tgz",
@@ -3618,6 +3730,15 @@
"url": "https://github.com/sponsors/sindresorhus"
}
},
"node_modules/ip-address": {
"version": "10.7.2",
"resolved": "https://registry.npmjs.org/ip-address/-/ip-address-10.7.2.tgz",
"integrity": "sha512-7H/2gFSIitxc0hG3nOI1glS8QLo/EHBFFLk8vEUjXY/xu0AdL8jZ9U1IzO2PUm0d2D/ofQcAifb0g6OBkt8U7w==",
"license": "MIT",
"engines": {
"node": ">= 12"
}
},
"node_modules/ipaddr.js": {
"version": "1.9.1",
"resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
@@ -3669,6 +3790,12 @@
"url": "https://github.com/sponsors/sindresorhus"
}
},
"node_modules/isexe": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
"integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==",
"license": "ISC"
},
"node_modules/istanbul-lib-coverage": {
"version": "3.2.2",
"resolved": "https://registry.npmjs.org/istanbul-lib-coverage/-/istanbul-lib-coverage-3.2.2.tgz",
@@ -3717,6 +3844,15 @@
"node": ">=6"
}
},
"node_modules/jose": {
"version": "6.2.12",
"resolved": "https://registry.npmjs.org/jose/-/jose-6.2.12.tgz",
"integrity": "sha512-9NiFmJEex0sy2Dk58j2UGBSHgUs2ypF9eZSu4L6vjOX3Dp96Sw1F3uL+H+D1sx02jZZdzUT0HgvCy59CuvXcWw==",
"license": "MIT",
"funding": {
"url": "https://github.com/sponsors/panva"
}
},
"node_modules/js-tokens": {
"version": "10.0.0",
"resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-10.0.0.tgz",
@@ -3750,9 +3886,14 @@
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
"integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
"dev": true,
"license": "MIT"
},
"node_modules/json-schema-typed": {
"version": "8.0.2",
"resolved": "https://registry.npmjs.org/json-schema-typed/-/json-schema-typed-8.0.2.tgz",
"integrity": "sha512-fQhoXdcvc3V28x7C7BMs4P5+kNlgUURe2jmUT1T//oBRMDrqy1QPelJimwZGo7Hg9VPV3EQV5Bnq4hbFy2vetA==",
"license": "BSD-2-Clause"
},
"node_modules/json5": {
"version": "2.2.3",
"resolved": "https://registry.npmjs.org/json5/-/json5-2.2.3.tgz",
@@ -4658,6 +4799,15 @@
"node": ">= 0.8"
}
},
"node_modules/path-key": {
"version": "3.1.1",
"resolved": "https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz",
"integrity": "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==",
"license": "MIT",
"engines": {
"node": ">=8"
}
},
"node_modules/path-to-regexp": {
"version": "8.4.2",
"resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.4.2.tgz",
@@ -4695,6 +4845,15 @@
"url": "https://github.com/sponsors/jonschlinkert"
}
},
"node_modules/pkce-challenge": {
"version": "5.0.1",
"resolved": "https://registry.npmjs.org/pkce-challenge/-/pkce-challenge-5.0.1.tgz",
"integrity": "sha512-wQ0b/W4Fr01qtpHlqSqspcj3EhBvimsdh0KlHhH8HRZnMsEa0ea2fTULOXOS9ccQr3om+GcGRk4e+isrZWV8qQ==",
"license": "MIT",
"engines": {
"node": ">=16.20.0"
}
},
"node_modules/pluralize": {
"version": "8.0.0",
"resolved": "https://registry.npmjs.org/pluralize/-/pluralize-8.0.0.tgz",
@@ -4850,7 +5009,6 @@
"version": "2.0.2",
"resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
"integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=0.10.0"
@@ -5037,6 +5195,27 @@
"integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
"license": "ISC"
},
"node_modules/shebang-command": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
"integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
"license": "MIT",
"dependencies": {
"shebang-regex": "^3.0.0"
},
"engines": {
"node": ">=8"
}
},
"node_modules/shebang-regex": {
"version": "3.0.0",
"resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
"integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
"license": "MIT",
"engines": {
"node": ">=8"
}
},
"node_modules/side-channel": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.1.1.tgz",
@@ -5866,6 +6045,21 @@
"defaults": "^1.0.3"
}
},
"node_modules/which": {
"version": "2.0.2",
"resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
"integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
"license": "ISC",
"dependencies": {
"isexe": "^2.0.0"
},
"bin": {
"node-which": "bin/node-which"
},
"engines": {
"node": ">= 8"
}
},
"node_modules/why-is-node-running": {
"version": "2.3.0",
"resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.3.0.tgz",
@@ -5925,6 +6119,15 @@
"funding": {
"url": "https://github.com/sponsors/colinhacks"
}
},
"node_modules/zod-to-json-schema": {
"version": "3.25.2",
"resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.25.2.tgz",
"integrity": "sha512-O/PgfnpT1xKSDeQYSCfRI5Gy3hPf91mKVDuYLUHZJMiDFptvP41MSnWofm8dnCm0256ZNfZIM7DSzuSMAFnjHA==",
"license": "ISC",
"peerDependencies": {
"zod": "^3.25.28 || ^4"
}
}
}
}
+2 -1
View File
@@ -1,6 +1,6 @@
{
"name": "mesh-bot",
"version": "0.1.0",
"version": "0.7.1",
"description": "",
"author": "",
"private": true,
@@ -23,6 +23,7 @@
"dependencies": {
"@bufbuild/protobuf": "^2.15.0",
"@meshtastic/protobufs": "^2.8.0",
"@modelcontextprotocol/sdk": "^1.30.1",
"@nestjs/common": "^12.0.1",
"@nestjs/core": "^12.0.1",
"@nestjs/platform-express": "^12.0.1",
+4 -2
View File
@@ -9,14 +9,16 @@ import { AppModule } from './app.module.js';
async function bootstrap() {
const app = await NestFactory.create<NestExpressApplication>(AppModule);
app.enableShutdownHooks();
app.setGlobalPrefix('api');
// 'mcp' is excluded so the MCP endpoint lives at /mcp, not /api/mcp (like Scalar at /)
app.setGlobalPrefix('api', { exclude: ['mcp'] });
// Scalar API docs at / (OpenAPI JSON at /docs-json), outside the api prefix.
const docConfig = new DocumentBuilder()
.setTitle('MeshBot API')
.setDescription(
'Meshtastic bridge bot: status, send text messages, list device channels.',
'Meshtastic bridge bot: status, send text messages, list device channels and known nodes.',
)
.addTag('Mesh', 'Meshtastic bridge control and telemetry')
.setVersion(pkg.version)
.build();
const document = SwaggerModule.createDocument(app, docConfig);
+56 -1
View File
@@ -10,6 +10,10 @@ async function loadProto(): Promise<typeof import('@meshtastic/protobufs')> {
export const BROADCAST_ADDR = 0xffffffff;
// official portnums.proto: TEXT_MESSAGE_APP=1 (task spec draft said 3 — the enum value wins)
export const PORT_TEXT_MESSAGE_APP = 1;
// verified against installed @meshtastic/protobufs Portnums.PortNum.POSITION_APP
export const PORT_POSITION_APP = 3;
// verified against installed @meshtastic/protobufs Portnums.PortNum.ROUTING_APP
export const PORT_ROUTING_APP = 5;
const START1 = 0x94;
const START2 = 0xc3;
@@ -61,9 +65,50 @@ export async function decodeFromRadio(
return fromBinary(P.Mesh.FromRadioSchema, bytes);
}
/** POSITION_APP packets carry a serialized meshtastic.Position in Data.payload. */
export async function decodePosition(
bytes: Uint8Array,
): Promise<import('@meshtastic/protobufs').Mesh.Position> {
const P = await loadProto();
return fromBinary(P.Mesh.PositionSchema, bytes);
}
/** ROUTING_APP packets carry a serialized meshtastic.Routing in Data.payload (ACK/NACK for want_ack sends). */
export async function decodeRouting(
bytes: Uint8Array,
): Promise<import('@meshtastic/protobufs').Mesh.Routing> {
const P = await loadProto();
return fromBinary(P.Mesh.RoutingSchema, bytes);
}
/** Human-readable name for a Routing.Error code (from the installed @meshtastic/protobufs enum), `reason <n>` fallback. */
export async function describeRoutingError(code: number): Promise<string> {
const P = await loadProto();
const hit = Object.entries(P.Mesh.Routing_Error).find(
([, v]) => typeof v === 'number' && v === code,
);
return hit ? String(hit[0]) : `reason ${code}`;
}
let hwModelNames: Map<number, string> | null = null;
/** Reverse lookup of meshtastic.HardwareModel (enum value -> name), loaded once. */
export async function loadHwModelNames(): Promise<Map<number, string>> {
if (!hwModelNames) {
const P = await loadProto();
hwModelNames = new Map(
Object.entries(P.Mesh.HardwareModel).map(([k, v]) => [
Number(k),
String(v),
]),
);
}
return hwModelNames;
}
export async function buildTextToRadio(
to: number,
text: string,
channelIndex: number,
): Promise<{ bytes: Uint8Array; id: number }> {
const P = await loadProto();
let id = Math.floor(Math.random() * 0x100000000) >>> 0;
@@ -72,7 +117,7 @@ export async function buildTextToRadio(
to,
id,
wantAck: true,
channel: 0,
channel: channelIndex,
payloadVariant: {
case: 'decoded',
value: {
@@ -87,3 +132,13 @@ export async function buildTextToRadio(
});
return { bytes: frame(toBinary(P.Mesh.ToRadioSchema, toRadio)), id };
}
export async function buildWantConfigToRadio(
wantConfigId: number,
): Promise<Uint8Array> {
const P = await loadProto();
const toRadio = create(P.Mesh.ToRadioSchema, {
payloadVariant: { case: 'wantConfigId', value: wantConfigId },
});
return toBinary(P.Mesh.ToRadioSchema, toRadio);
}
+138
View File
@@ -0,0 +1,138 @@
import { create, toBinary } from '@bufbuild/protobuf';
import * as P from '@meshtastic/protobufs';
import * as net from 'node:net';
import type { AddressInfo } from 'node:net';
import { frame } from './codec.js';
/** In-process TCP stand-in for the meshtastic-serial-bridge; hands out accepted sockets. */
export function startBridge(
onSocket?: (s: net.Socket) => void,
): Promise<{ port: number; sockets: net.Socket[]; close: () => void }> {
const sockets: net.Socket[] = [];
const server = net.createServer((socket) => {
onSocket?.(socket); // attached at accept time, before any data can arrive
sockets.push(socket);
});
return new Promise((resolve) => {
server.listen(0, '127.0.0.1', () => {
resolve({
port: (server.address() as AddressInfo).port,
sockets,
close: () => server.close(),
});
});
});
}
export async function waitFor(
cond: () => boolean | Promise<boolean>,
timeoutMs = 5000,
): Promise<void> {
const t0 = Date.now();
while (!(await cond())) {
if (Date.now() - t0 > timeoutMs) throw new Error('timed out waiting');
await new Promise((r) => setTimeout(r, 10));
}
}
/** Plain-object NodeInfo fields (init shape, not the runtime message type) accepted by nodeInfoFrame. */
export interface NodeInfoFields {
user?: {
id?: string;
longName?: string;
shortName?: string;
hwModel?: number;
};
position?: { latitudeI?: number; longitudeI?: number; altitude?: number };
lastHeard?: number;
deviceMetrics?: { batteryLevel?: number };
snr?: number;
viaMqtt?: boolean;
hopsAway?: number;
}
// init shape for create(): all fields optional (protobuf-es' MessageInit is not exported)
type Init<T> = {
[P in keyof T as P extends '$unknown' | '$typeName' ? never : P]?: T[P];
};
/** DeviceMetadata frame as streamed once during the initial sync. */
export function metadataFrame(md: Init<P.Mesh.DeviceMetadata>): Uint8Array {
const fr = create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'metadata', value: md },
});
return frame(toBinary(P.Mesh.FromRadioSchema, fr));
}
// Config/ModuleConfig section frames as streamed one-per-section during the initial sync.
// (meshtastic.Config / meshtastic.ModuleConfig live in their own root namespaces, not under Mesh)
export function configSectionFrame(
sectionCase: P.Config.Config['payloadVariant']['case'],
value: unknown,
): Uint8Array {
const cfg = create(P.Config.ConfigSchema, {
payloadVariant: {
case: sectionCase,
value,
} as P.Config.Config['payloadVariant'],
});
return frame(
toBinary(
P.Mesh.FromRadioSchema,
create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'config', value: cfg },
}),
),
);
}
export function moduleConfigSectionFrame(
sectionCase: P.ModuleConfig.ModuleConfig['payloadVariant']['case'],
value: unknown,
): Uint8Array {
const mc = create(P.ModuleConfig.ModuleConfigSchema, {
payloadVariant: {
case: sectionCase,
value,
} as P.ModuleConfig.ModuleConfig['payloadVariant'],
});
return frame(
toBinary(
P.Mesh.FromRadioSchema,
create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'moduleConfig', value: mc },
}),
),
);
}
export function nodeInfoFrame(
num: number,
fields?: NodeInfoFields,
): Uint8Array {
const ni = create(P.Mesh.NodeInfoSchema, { num, ...fields });
return frame(
toBinary(
P.Mesh.FromRadioSchema,
create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'nodeInfo', value: ni },
}),
),
);
}
export const KAMIL_NUM = 123456789;
export function kamilNodeInfo(): NodeInfoFields {
return {
user: {
id: '!kamil',
longName: 'Kamil SP8MK/P',
shortName: 'KK',
hwModel: P.Mesh.HardwareModel.TBEAM,
},
position: { latitudeI: 521049637, longitudeI: 209833152, altitude: 123 },
lastHeard: 1758000000,
deviceMetrics: { batteryLevel: 87 },
};
}
+273
View File
@@ -0,0 +1,273 @@
import { Client } from '@modelcontextprotocol/sdk/client/index.js';
import { InMemoryTransport } from '@modelcontextprotocol/sdk/inMemory.js';
import type * as net from 'node:net';
import { describe, expect, it } from 'vitest';
import { BROADCAST_ADDR } from './codec.js';
import {
KAMIL_NUM,
kamilNodeInfo,
nodeInfoFrame,
startBridge,
waitFor,
} from './fake-bridge.js';
import { createMeshMcpServer } from './mcp.controller.js';
import { MeshService } from './mesh.service.js';
// callTool returns CallToolResult | a legacy compatibility shape; we only ever get the former
type ToolOutcome = { content: { type: string; text?: string }[] };
function toolText(r: Awaited<ReturnType<Client['callTool']>>): string {
const c = (r as ToolOutcome).content[0];
if (!c || c.type !== 'text') throw new Error('expected a text content block');
return c.text ?? '';
}
async function connectedService(): Promise<{
svc: MeshService;
sockets: net.Socket[];
close: () => void;
}> {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
svc.onModuleInit();
await waitFor(() => bridge.sockets.length === 1 && svc.status().connected);
return {
svc,
sockets: bridge.sockets,
close: () => {
svc.onModuleDestroy();
bridge.close();
},
};
}
// Drive the MCP server over an in-memory transport pair (no HTTP involved)
async function connectMcp(svc: MeshService): Promise<{
client: Client;
close: () => Promise<void>;
}> {
const [clientTransport, serverTransport] =
InMemoryTransport.createLinkedPair();
const server = createMeshMcpServer(svc);
await server.connect(serverTransport);
const client = new Client({ name: 'mesh-bot-test', version: '0.0.0' });
await client.connect(clientTransport);
return {
client,
close: async () => {
await client.close();
await server.close();
},
};
}
describe('MCP server tools', () => {
it('lists all seven tools with descriptions and input schemas', async () => {
const env = await connectedService();
try {
const mcp = await connectMcp(env.svc);
try {
const { tools } = await mcp.client.listTools();
expect(tools.map((t) => t.name).sort()).toEqual([
'device_info',
'get_messages',
'get_node',
'list_channels',
'list_nodes',
'mesh_status',
'send_message',
]);
for (const t of tools) expect(t.description?.length).toBeGreaterThan(0);
const send = tools.find((t) => t.name === 'send_message')!;
expect(send.inputSchema.required).toEqual(['text']);
expect(Object.keys(send.inputSchema.properties ?? {})).toEqual([
'text',
'to',
]);
} finally {
await mcp.close();
}
} finally {
env.close();
}
});
it('mesh_status returns the bridge connection state', async () => {
const env = await connectedService();
try {
const mcp = await connectMcp(env.svc);
try {
const r = await mcp.client.callTool({
name: 'mesh_status',
arguments: {},
});
expect(r.isError).not.toBe(true);
expect(JSON.parse(toolText(r))).toEqual({
connected: true,
myNodeNum: null,
host: '127.0.0.1',
port: Number(process.env.MESH_PORT),
});
} finally {
await mcp.close();
}
} finally {
env.close();
}
});
it('send_message broadcasts by default and resolves names to node numbers', async () => {
const env = await connectedService();
try {
env.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
await waitFor(async () => (await env.svc.nodes()).length === 1);
const mcp = await connectMcp(env.svc);
try {
const r1 = await mcp.client.callTool({
name: 'send_message',
arguments: { text: 'hello' },
});
expect(r1.isError).not.toBe(true);
const bcast = JSON.parse(toolText(r1)) as { id: number };
expect(bcast.id).toBeGreaterThan(0);
expect(env.svc.messages()[0]).toMatchObject({
dir: 'tx',
to: BROADCAST_ADDR,
});
// name lookup via the node DB (unique substring)
const r2 = await mcp.client.callTool({
name: 'send_message',
arguments: { text: 'dm', to: 'kamil' },
});
expect(r2.isError).not.toBe(true);
expect(env.svc.messages()[0]).toMatchObject({
dir: 'tx',
to: KAMIL_NUM,
});
} finally {
await mcp.close();
}
} finally {
env.close();
}
});
it('send_message surfaces resolution errors as tool errors with the REST messages', async () => {
const env = await connectedService();
try {
const mcp = await connectMcp(env.svc);
try {
const r1 = await mcp.client.callTool({
name: 'send_message',
arguments: { text: 'x', to: 'zzz-nope' },
});
expect(r1.isError).toBe(true);
expect(toolText(r1)).toContain("no node matching 'zzz-nope'");
const r2 = await mcp.client.callTool({
name: 'send_message',
arguments: { text: 'x', to: '0' },
});
expect(r2.isError).toBe(true);
expect(toolText(r2)).toContain('invalid node number');
} finally {
await mcp.close();
}
} finally {
env.close();
}
});
it('get_node resolves by name and errors when missing', async () => {
const env = await connectedService();
try {
env.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
await waitFor(async () => (await env.svc.nodes()).length === 1);
const mcp = await connectMcp(env.svc);
try {
const r1 = await mcp.client.callTool({
name: 'get_node',
arguments: { id: 'kamil' },
});
expect(r1.isError).not.toBe(true);
expect(JSON.parse(toolText(r1))).toMatchObject({
num: KAMIL_NUM,
longName: 'Kamil SP8MK/P',
shortName: 'KK',
});
const r2 = await mcp.client.callTool({
name: 'get_node',
arguments: { id: 'zzz' },
});
expect(r2.isError).toBe(true);
expect(toolText(r2)).toContain("no node matching 'zzz'");
} finally {
await mcp.close();
}
} finally {
env.close();
}
});
it('list_channels, list_nodes, get_messages and device_info return the service data', async () => {
const env = await connectedService();
try {
env.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
await waitFor(async () => (await env.svc.nodes()).length === 1);
const mcp = await connectMcp(env.svc);
try {
expect(
JSON.parse(
toolText(
await mcp.client.callTool({
name: 'list_channels',
arguments: {},
}),
),
),
).toEqual([]); // no channel frames fed yet
// no metadata/config frames fed yet → empty sections, null node num
expect(
JSON.parse(
toolText(
await mcp.client.callTool({ name: 'device_info', arguments: {} }),
),
),
).toEqual({ myNodeNum: null, localConfig: {}, moduleConfig: {} });
const nodes = JSON.parse(
toolText(
await mcp.client.callTool({ name: 'list_nodes', arguments: {} }),
),
) as { num: number; longName?: string }[];
expect(nodes).toHaveLength(1);
expect(nodes[0].num).toBe(KAMIL_NUM);
expect(nodes[0].longName).toBe('Kamil SP8MK/P');
await mcp.client.callTool({
name: 'send_message',
arguments: { text: 'hi' },
});
const msgs = JSON.parse(
toolText(
await mcp.client.callTool({ name: 'get_messages', arguments: {} }),
),
) as { dir: string; to?: number }[];
expect(msgs[0]).toMatchObject({ dir: 'tx', to: BROADCAST_ADDR }); // newest first
} finally {
await mcp.close();
}
} finally {
env.close();
}
});
});
+124
View File
@@ -0,0 +1,124 @@
import { Controller, Post, Req, Res } from '@nestjs/common';
import type { Request } from 'express';
import type { ServerResponse } from 'node:http';
import { ApiExcludeEndpoint } from '@nestjs/swagger';
import { z } from 'zod';
// The SDK's root entry is broken in all published 1.x tarballs (upstream #2273: the exports map points to a dist index that was never shipped) — use the documented subpath imports instead.
import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
import * as pkg from '../../package.json';
import { MeshService } from './mesh.service.js';
const CHANNEL_NOTE =
' All sends ride the pinned "test" channel (index 3) — never the primary channel.';
function jsonResult(value: unknown): {
content: { type: 'text'; text: string }[];
} {
return { content: [{ type: 'text', text: JSON.stringify(value) }] };
}
/** Build an MCP server exposing the MeshService as tools (1:1 with the REST endpoints). */
export function createMeshMcpServer(mesh: MeshService): McpServer {
const server = new McpServer({ name: 'mesh-bot', version: pkg.version });
server.registerTool(
'mesh_status',
{
description: `Bridge connection state: whether the bot is connected to the meshtastic bridge, this device's node number, and the bridge host/port.${CHANNEL_NOTE}`,
},
async () => jsonResult(mesh.status()),
);
server.registerTool(
'send_message',
{
description: `Send a text message over the mesh; returns { id } — the Meshtastic packet id. to: omitted/"" or "!b"/"broadcast" (case-insensitive) → broadcast; number or numeric string → that node number (integer in 1..0xffffffff); anything else is looked up by name (exact long/short name, then unique substring). Unknown or ambiguous targets are an error.${CHANNEL_NOTE}`,
inputSchema: { text: z.string(), to: z.string().optional() },
},
async ({ text, to }) =>
jsonResult({ id: await mesh.sendText(await mesh.resolveDest(to), text) }),
);
server.registerTool(
'list_channels',
{
description: `The device's Meshtastic channels as { index, name, uplinkEnabled, downlinkEnabled }[] sorted by index (psk/keys redacted); empty until the initial sync completes.${CHANNEL_NOTE}`,
},
async () => jsonResult(mesh.channels()),
);
server.registerTool(
'list_nodes',
{
description: `Known mesh nodes as lean summaries sorted by node number; names/hwModel/batteryLevel appear only when the device reported them, lastHeard is epoch seconds (null = never heard), position only when both coordinates are known.${CHANNEL_NOTE}`,
},
async () => jsonResult(await mesh.nodes()),
);
server.registerTool(
'get_node',
{
description: `Look up one node by exact node number (number or numeric string), then case-insensitive exact long/short name, else the unique case-insensitive substring match. Errors when nothing or more than one node matches.${CHANNEL_NOTE}`,
inputSchema: { id: z.string() },
},
async ({ id }) => {
const n = await mesh.node(id);
if (!n) throw new Error(`no node matching '${id}'`);
return jsonResult(n);
},
);
server.registerTool(
'get_messages',
{
description: `Message history, newest first (last 100): inbound text (dir "rx", with from) and our sends (dir "tx", with to + status pending→delivered/failed; broadcasts stay pending because firmware strips want_ack). In-memory only, reset on every bridge reconnect.${CHANNEL_NOTE}`,
},
async () => jsonResult(mesh.messages()),
);
server.registerTool(
'device_info',
{
description: `Device info captured during the initial sync: this device's node number, firmware version and metadata, plus per-section config/module-config (security publicKey/privateKey/adminKey and network wifiPsk redacted as "REDACTED"). In-memory only, reset on every bridge reconnect.${CHANNEL_NOTE}`,
},
async () => jsonResult(mesh.deviceInfo()),
);
return server;
}
@Controller()
export class McpController {
constructor(private readonly mesh: MeshService) {}
// MCP Streamable HTTP endpoint (stateless mode): a fresh server + transport per request, outside the /api prefix.
@Post('mcp')
@ApiExcludeEndpoint()
async mcp(@Req() req: Request, @Res() res: ServerResponse): Promise<void> {
const server = createMeshMcpServer(this.mesh);
try {
const transport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
});
await server.connect(transport);
await transport.handleRequest(req, res, req.body);
res.on('close', () => {
void transport.close();
void server.close();
});
} catch (error) {
if (!res.headersSent) {
res.statusCode = 500;
res.setHeader('content-type', 'application/json');
res.end(
JSON.stringify({
jsonrpc: '2.0',
error: { code: -32603, message: String(error) },
id: null,
}),
);
}
}
}
}
+191 -12
View File
@@ -3,10 +3,17 @@ import {
Body,
Controller,
Get,
NotFoundException,
Param,
Post,
} from '@nestjs/common';
import { ApiOperation, ApiProperty } from '@nestjs/swagger';
import { BROADCAST_ADDR } from './codec.js';
import {
ApiOperation,
ApiProperty,
ApiResponse,
ApiTags,
} from '@nestjs/swagger';
import type { DeviceInfo } from './mesh.service.js';
import { MeshService } from './mesh.service.js';
export class SendTextDto {
@@ -15,37 +22,62 @@ export class SendTextDto {
@ApiProperty({
required: false,
description:
'Decimal node number, "!b", or "broadcast" (defaults to broadcast)',
'Send target. Resolution order: omitted or "" → broadcast (0xffffffff); number → used as-is (integer in 1..0xffffffff); numeric string → that node number; "!b" or "broadcast" (case-insensitive) → broadcast; anything else is looked up by name — exact long/short name, then unique substring. DMs are unicast and wantAck-tracked via GET /api/messages (pending→delivered/failed); broadcasts stay pending because firmware strips want_ack.',
example: '!b',
})
to?: string | number;
}
// tag description is set via DocumentBuilder.addTag in main.ts (v12 ApiTagOptions has no description)
@ApiTags('Mesh')
@Controller()
export class MeshController {
constructor(private readonly mesh: MeshService) {}
@Get('status')
@ApiOperation({ summary: 'Bridge connection status' })
@ApiOperation({
summary: 'Bridge connection status',
description:
'Whether the bot is connected to the meshtastic-serial-bridge and which node number this device has.',
})
@ApiResponse({
status: 200,
description: 'Connection status',
example: {
connected: true,
myNodeNum: 123456789,
host: '192.168.1.4',
port: 4403,
},
})
status() {
return this.mesh.status();
}
@Post('send')
@ApiOperation({ summary: 'Send a text message over the mesh' })
@ApiOperation({
summary: 'Send a text message over the mesh',
description:
'Queues a TEXT_MESSAGE_APP packet to the resolved target (node number, node name, or broadcast). DMs are unicast and wantAck-tracked via GET /api/messages; broadcasts stay pending because firmware strips want_ack. All sends ride the pinned test channel (index 3, "test" — never the primary channel) regardless of DM or broadcast, since modern firmware PKI handles unicast encryption/channel anyway. Returns the Meshtastic packet id.',
})
@ApiResponse({
status: 200,
description: 'Packet queued',
example: { id: 123456789 },
})
@ApiResponse({ status: 400, description: 'Invalid text or target' })
@ApiResponse({ status: 503, description: 'Bridge not connected' })
async send(@Body() body: SendTextDto) {
if (typeof body?.text !== 'string' || body.text.length === 0) {
throw new BadRequestException('text must be a non-empty string');
}
let to = BROADCAST_ADDR;
const t = body.to;
if (t !== undefined && t !== '!b' && t !== 'broadcast') {
const n = typeof t === 'number' ? t : Number(String(t));
if (!Number.isFinite(n))
let to: number;
try {
to = await this.mesh.resolveDest(body.to);
} catch (err) {
throw new BadRequestException(
'to must be a decimal node number, "!b", or "broadcast"',
err instanceof Error ? err.message : String(err),
);
to = n;
}
return { id: await this.mesh.sendText(to, body.text) };
}
@@ -53,8 +85,155 @@ export class MeshController {
@Get('channels')
@ApiOperation({
summary: "The device's Meshtastic channels (keys redacted)",
description:
'Channel table streamed during the initial sync; empty until it completes. psk/keys are never exposed.',
})
@ApiResponse({
status: 200,
description: 'Channels sorted by index',
example: [
{ index: 0, name: 'Default', uplinkEnabled: true, downlinkEnabled: true },
{
index: 3,
name: 'test',
uplinkEnabled: false,
downlinkEnabled: false,
},
],
})
channels() {
return this.mesh.channels();
}
@Get('device')
@ApiOperation({
summary: 'Device info (metadata + config, keys redacted)',
description:
'This device\'s node number, firmware version and metadata, plus per-section config and module-config messages captured during the initial sync; empty until it completes. Key material is never exposed: security publicKey/privateKey/adminKey and network wifiPsk are replaced with "REDACTED". In-memory only, reset on every bridge reconnect.',
})
@ApiResponse({
status: 200,
description: 'Device info',
example: {
myNodeNum: 123456789,
firmwareVersion: '2.7.0.1',
metadata: {
firmwareVersion: '2.7.0.1',
deviceStateVersion: 1,
canShutdown: true,
hasWifi: false,
hasBluetooth: true,
hasEthernet: false,
role: 3,
positionFlags: 65,
hwModel: 42,
hasRemoteHardware: false,
hasPKC: true,
excludedModules: 0,
},
localConfig: {
device: { role: 3, buttonGpio: 13 },
security: {
publicKey: 'REDACTED',
privateKey: 'REDACTED',
adminKey: 'REDACTED',
isManaged: true,
},
network: { wifiEnabled: false, wifiSsid: '', wifiPsk: 'REDACTED' },
},
moduleConfig: {
telemetry: { environmentUpdateInterval: 900 },
},
},
})
device(): DeviceInfo {
return this.mesh.deviceInfo();
}
@Get('messages')
@ApiOperation({
summary: 'Message history (last 100)',
description:
'Inbound text messages and our sends, newest first. tx records start "pending" and move to "delivered"/"failed" when the routing ACK/NACK arrives; broadcasts stay "pending" because firmware strips want_ack before TX. History is in-memory only (last 100) and resets on every bridge reconnect.',
})
@ApiResponse({
status: 200,
description: 'Messages newest first',
example: [
{
id: 456789,
dir: 'tx',
to: 42,
text: 'hello test',
channel: 3,
at: 1758000123456,
status: 'delivered',
},
{
id: 123456,
dir: 'rx',
from: 987654321,
text: 'ping',
channel: 2,
at: 1758000000000,
},
],
})
messages() {
return this.mesh.messages();
}
@Get('nodes')
@ApiOperation({
summary: 'Known mesh nodes (lean summaries)',
description:
'Node database collected during the initial sync plus live POSITION_APP updates; reset on every bridge reconnect. Names, hwModel and batteryLevel appear only when the device reported them; snr/hopsAway/viaMqtt only when carried by the NodeInfo.',
})
@ApiResponse({
status: 200,
description: 'Nodes sorted by node number',
example: [
{
num: 123456789,
longName: 'Kamil SP8MK/P',
shortName: 'KK',
hwModel: 'TBEAM',
batteryLevel: 87,
lastHeard: 1758000000,
position: { lat: 52.1049637, lon: 20.9833152, alt: 123 },
snr: -2.5,
hopsAway: 1,
viaMqtt: true,
},
],
})
async nodes() {
return this.mesh.nodes();
}
@Get('nodes/:id')
@ApiOperation({
summary: 'Look up one node by number or name',
description:
'Exact node number first (numbers and numeric strings), then case-insensitive exact long/short name, else the unique case-insensitive substring match across names. 404 when nothing or more than one node matches.',
})
@ApiResponse({
status: 200,
description: 'The matching node',
example: {
num: 123456789,
longName: 'Kamil SP8MK/P',
shortName: 'KK',
lastHeard: null,
},
})
@ApiResponse({
status: 404,
description: 'No node (or more than one) matching the given id or name',
})
async node(@Param('id') id: string) {
const n = await this.mesh.node(id);
if (!n) throw new NotFoundException(`no node matching '${id}'`);
return n;
}
}
+2 -1
View File
@@ -1,9 +1,10 @@
import { Module } from '@nestjs/common';
import { McpController } from './mcp.controller.js';
import { MeshController } from './mesh.controller.js';
import { MeshService } from './mesh.service.js';
@Module({
controllers: [MeshController],
controllers: [MeshController, McpController],
providers: [MeshService],
})
export class MeshModule {}
+691 -24
View File
@@ -1,35 +1,102 @@
import { create, toBinary } from '@bufbuild/protobuf';
import { create, fromBinary, toBinary } from '@bufbuild/protobuf';
import * as P from '@meshtastic/protobufs';
import * as net from 'node:net';
import type { AddressInfo } from 'node:net';
import { describe, expect, it } from 'vitest';
import { frame } from './codec.js';
import { BROADCAST_ADDR, extractFrames, frame } from './codec.js';
import {
KAMIL_NUM,
configSectionFrame,
kamilNodeInfo,
metadataFrame,
moduleConfigSectionFrame,
nodeInfoFrame,
startBridge,
waitFor,
} from './fake-bridge.js';
import { MeshService } from './mesh.service.js';
function startBridge(): Promise<{
port: number;
sockets: net.Socket[];
close: () => void;
}> {
const sockets: net.Socket[] = [];
const server = net.createServer((socket) => sockets.push(socket));
return new Promise((resolve) => {
server.listen(0, '127.0.0.1', () => {
resolve({
port: (server.address() as AddressInfo).port,
sockets,
close: () => server.close(),
});
// live position update: POSITION_APP packet with a serialized Position in Data.payload
function positionPacketFrame(
from: number,
pos: { latitudeI?: number; longitudeI?: number },
): Uint8Array {
const data = create(P.Mesh.DataSchema, {
portnum: P.Portnums.PortNum.POSITION_APP,
payload: toBinary(
P.Mesh.PositionSchema,
create(P.Mesh.PositionSchema, pos),
),
});
const pkt = create(P.Mesh.MeshPacketSchema, {
from,
id: 1,
payloadVariant: { case: 'decoded', value: data },
});
return frame(
toBinary(
P.Mesh.FromRadioSchema,
create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'packet', value: pkt },
}),
),
);
}
async function waitFor(cond: () => boolean, timeoutMs = 5000): Promise<void> {
const t0 = Date.now();
while (!cond()) {
if (Date.now() - t0 > timeoutMs) throw new Error('timed out waiting');
await new Promise((r) => setTimeout(r, 10));
}
// inbound text message: TEXT_MESSAGE_APP packet with UTF-8 in Data.payload
function textPacketFrame(
from: number,
to: number,
text: string,
channel = 0,
): Uint8Array {
const data = create(P.Mesh.DataSchema, {
portnum: P.Portnums.PortNum.TEXT_MESSAGE_APP,
payload: new TextEncoder().encode(text),
});
const pkt = create(P.Mesh.MeshPacketSchema, {
from,
to,
id: 1,
channel,
payloadVariant: { case: 'decoded', value: data },
});
return frame(
toBinary(
P.Mesh.FromRadioSchema,
create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'packet', value: pkt },
}),
),
);
}
// ACK/NACK for our sends: ROUTING_APP packet with Data.requestId = original id and a serialized Routing in the payload
function routingFrame(
requestId: number,
errorReason: P.Mesh.Routing_Error,
): Uint8Array {
const data = create(P.Mesh.DataSchema, {
portnum: P.Portnums.PortNum.ROUTING_APP,
requestId,
payload: toBinary(
P.Mesh.RoutingSchema,
create(P.Mesh.RoutingSchema, {
variant: { case: 'errorReason', value: errorReason },
}),
),
});
const pkt = create(P.Mesh.MeshPacketSchema, {
from: 1,
id: 2,
payloadVariant: { case: 'decoded', value: data },
});
return frame(
toBinary(
P.Mesh.FromRadioSchema,
create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'packet', value: pkt },
}),
),
);
}
function channelFrame(
@@ -116,3 +183,603 @@ describe('MeshService channel pipeline', () => {
}
});
});
describe('MeshService connect', () => {
it('sends want_config_id on connect and applies the initial sync', async () => {
const out: Uint8Array[] = [];
const bridge = await startBridge((s) => s.on('data', (c) => out.push(c)));
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(() => svc.status().connected && out.length > 0);
const merged = new Uint8Array(out.reduce((n, c) => n + c.length, 0));
let off = 0;
for (const c of out) {
merged.set(c, off);
off += c.length;
}
const { packets } = extractFrames(merged);
expect(packets.length).toBeGreaterThan(0);
const tr = fromBinary(P.Mesh.ToRadioSchema, packets[0]);
expect(tr.payloadVariant?.case).toBe('wantConfigId');
const nonce =
tr.payloadVariant && tr.payloadVariant.case === 'wantConfigId'
? tr.payloadVariant.value
: -1;
expect(nonce).toBeGreaterThan(0);
// feed back the initial sync: myInfo, then configCompleteId echoing the nonce
bridge.sockets[0].write(
frame(
toBinary(
P.Mesh.FromRadioSchema,
create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'myInfo', value: { myNodeNum: 1234 } },
}),
),
),
);
bridge.sockets[0].write(
frame(
toBinary(
P.Mesh.FromRadioSchema,
create(P.Mesh.FromRadioSchema, {
payloadVariant: { case: 'configCompleteId', value: nonce },
}),
),
),
);
await waitFor(() => svc.status().myNodeNum === 1234);
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
});
describe('MeshService send', () => {
it('sends on the test channel (index 3) by default, never primary', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
delete process.env.MESH_SEND_CHANNEL; // default path: "test" (index 3)
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
const out: Uint8Array[] = [];
bridge.sockets[0].on('data', (c) => out.push(c));
const id = await svc.sendText(42, 'hello test');
expect(id).toBeGreaterThan(0);
const readOutbound = (): P.Mesh.MeshPacket | undefined => {
const merged = new Uint8Array(out.reduce((n, c) => n + c.length, 0));
let off = 0;
for (const c of out) {
merged.set(c, off);
off += c.length;
}
const { packets } = extractFrames(merged);
// outbound now starts with the want_config_id frame — find the text packet
for (const p of packets) {
const tr = fromBinary(P.Mesh.ToRadioSchema, p);
if (tr.payloadVariant?.case === 'packet')
return tr.payloadVariant.value;
}
return undefined;
};
await waitFor(() => readOutbound() !== undefined);
const pkt = readOutbound()!;
expect(pkt.channel).toBe(3); // "test" — never the primary channel (0)
expect(pkt.to).toBe(42);
const decoded =
pkt.payloadVariant?.case === 'decoded'
? pkt.payloadVariant.value
: undefined;
expect(
new TextDecoder().decode(decoded?.payload ?? new Uint8Array()),
).toBe('hello test');
} finally {
delete process.env.MESH_SEND_CHANNEL;
svc.onModuleDestroy();
bridge.close();
}
});
});
describe('MeshService node database', () => {
it('collects NodeInfo during sync and summarizes nodes', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
bridge.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
bridge.sockets[0].write(nodeInfoFrame(987654321)); // bare entry: no user/position/metrics yet
await waitFor(async () => (await svc.nodes()).length === 2);
expect(await svc.nodes()).toEqual([
{
num: KAMIL_NUM,
longName: 'Kamil SP8MK/P',
shortName: 'KK',
hwModel: 'TBEAM',
batteryLevel: 87,
lastHeard: 1758000000,
position: { lat: 521049637 * 1e-7, lon: 209833152 * 1e-7, alt: 123 },
},
{ num: 987654321, lastHeard: null }, // names/hwModel/battery/position omitted when absent
]);
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('creates a stub entry for POSITION_APP packets from unknown nodes', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
bridge.sockets[0].write(
positionPacketFrame(555, {
latitudeI: 10000000,
longitudeI: -20000000,
}),
);
await waitFor(async () => (await svc.nodes()).length === 1);
expect(await svc.nodes()).toEqual([
{ num: 555, lastHeard: null, position: { lat: 1, lon: -2 } }, // no alt sent -> omitted
]);
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('looks up nodes by exact num, numeric string, exact name and unique substring', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
bridge.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
bridge.sockets[0].write(
nodeInfoFrame(42, {
user: { id: '!ot', longName: 'Other Node', shortName: 'OT' },
}),
);
await waitFor(async () => (await svc.nodes()).length === 2);
expect((await svc.node(KAMIL_NUM))?.longName).toBe('Kamil SP8MK/P'); // exact num
expect((await svc.node(String(KAMIL_NUM)))?.num).toBe(KAMIL_NUM); // numeric string
expect((await svc.node('kamil sp8mk/p'))?.shortName).toBe('KK'); // case-insensitive exact name
expect((await svc.node('kamil'))?.num).toBe(KAMIL_NUM); // unique substring
expect(await svc.node('zzz-nope')).toBeNull(); // no match
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('returns null for ambiguous name matches', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
// two nodes whose names both contain "kamil" and share the short name "KK"
bridge.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
bridge.sockets[0].write(
nodeInfoFrame(777, {
user: { id: '!kj', longName: 'Kamil Jr.', shortName: 'KK' },
}),
);
await waitFor(async () => (await svc.nodes()).length === 2);
expect(await svc.node('kamil')).toBeNull(); // substring matches two nodes
expect(await svc.node('kk')).toBeNull(); // exact name matches two nodes
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('resets the node database on reconnect (no stale data)', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
process.env.MESH_RECONNECT_MS = '50';
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
bridge.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
await waitFor(async () => (await svc.nodes()).length === 1);
// drop the connection; bot reconnects and must start with an empty node DB
bridge.sockets[0].destroy();
await waitFor(() => bridge.sockets.length >= 2 && svc.status().connected);
await waitFor(async () => (await svc.nodes()).length === 0);
} finally {
delete process.env.MESH_RECONNECT_MS;
svc.onModuleDestroy();
bridge.close();
}
});
});
describe('MeshService message history', () => {
it('captures inbound text as rx records', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
bridge.sockets[0].write(textPacketFrame(KAMIL_NUM, 42, 'ping', 2));
await waitFor(() => svc.messages().length === 1);
expect(svc.messages()).toEqual([
{
id: 1,
dir: 'rx',
from: KAMIL_NUM,
text: 'ping',
channel: 2,
at: expect.any(Number),
},
]);
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('tracks a tx send pending -> delivered on the routing ACK', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
const id = await svc.sendText(42, 'hello test');
expect(svc.messages()[0]).toMatchObject({
id,
dir: 'tx',
to: 42,
text: 'hello test',
channel: 3,
status: 'pending',
});
bridge.sockets[0].write(routingFrame(id, P.Mesh.Routing_Error.NONE));
await waitFor(() => svc.messages()[0]?.status === 'delivered');
expect(svc.messages()[0]).toMatchObject({
id,
dir: 'tx',
status: 'delivered',
});
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('marks a tx failed with the routing error reason on NACK', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
const id = await svc.sendText(42, 'will fail');
expect(svc.messages()[0]?.status).toBe('pending');
bridge.sockets[0].write(routingFrame(id, P.Mesh.Routing_Error.TIMEOUT));
await waitFor(() => svc.messages()[0]?.status === 'failed');
expect(svc.messages()[0]).toMatchObject({
id,
status: 'failed',
ackError: 'TIMEOUT', // human-readable Routing.Error name
});
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('caps history at 100 records, dropping the oldest', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
for (let i = 0; i < 105; i++)
bridge.sockets[0].write(textPacketFrame(42, KAMIL_NUM, `m-${i}`));
await waitFor(() => svc.messages().length === 100, 10000);
expect(svc.messages()[0]?.text).toBe('m-104'); // newest first
expect(svc.messages()[99]?.text).toBe('m-5'); // m-0..m-4 dropped
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
});
describe('MeshService resolveDest', () => {
it('resolves broadcast sentinels, numbers and names to node numbers', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
bridge.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
await waitFor(async () => (await svc.nodes()).length === 1);
expect(await svc.resolveDest(undefined)).toBe(BROADCAST_ADDR); // omitted → broadcast
expect(await svc.resolveDest('')).toBe(BROADCAST_ADDR); // empty → broadcast
expect(await svc.resolveDest('!b')).toBe(BROADCAST_ADDR);
expect(await svc.resolveDest('BROADCAST')).toBe(BROADCAST_ADDR); // case-insensitive
expect(await svc.resolveDest(42)).toBe(42); // number passthrough
expect(await svc.resolveDest(String(KAMIL_NUM))).toBe(KAMIL_NUM); // numeric string
expect(await svc.resolveDest('Kamil SP8MK/P')).toBe(KAMIL_NUM); // exact longName
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('throws for unknown names and invalid node numbers', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
bridge.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
await waitFor(async () => (await svc.nodes()).length === 1);
await expect(svc.resolveDest('zzz-nope')).rejects.toThrow(
"no node matching 'zzz-nope'",
);
for (const bad of [0, -1, 42.5, BROADCAST_ADDR + 1]) {
await expect(svc.resolveDest(bad)).rejects.toThrow(
/invalid node number/,
);
}
await expect(svc.resolveDest('0')).rejects.toThrow(/invalid node number/);
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
});
describe('MeshService device info', () => {
it('captures DeviceMetadata and exposes firmwareVersion', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
// before the sync: only the node number (null until myInfo arrives)
expect(svc.deviceInfo()).toEqual({
myNodeNum: null,
localConfig: {},
moduleConfig: {},
});
bridge.sockets[0].write(
metadataFrame({ firmwareVersion: '2.7.0.1', hasWifi: false, role: 3 }),
);
await waitFor(() => svc.deviceInfo().firmwareVersion === '2.7.0.1');
const info = svc.deviceInfo();
expect(info.firmwareVersion).toBe('2.7.0.1');
expect(info.metadata?.firmwareVersion).toBe('2.7.0.1'); // metadata stored as-is
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('captures config/module-config sections and redacts key material', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
const secret = 'super-secret-wifi-psk';
bridge.sockets[0].write(
configSectionFrame('security', {
publicKey: new Uint8Array([1, 2, 3]),
privateKey: new Uint8Array([4, 5, 6]),
adminKey: [new Uint8Array([7])],
isManaged: true,
}),
);
bridge.sockets[0].write(
configSectionFrame('network', {
wifiEnabled: false,
wifiSsid: 'home',
wifiPsk: secret,
}),
);
bridge.sockets[0].write(configSectionFrame('device', { role: 3 }));
bridge.sockets[0].write(
moduleConfigSectionFrame('telemetry', {
environmentUpdateInterval: 900,
powerMeasurementEnabled: true,
}),
);
await waitFor(
() =>
Object.keys(svc.deviceInfo().localConfig).length === 3 &&
Object.keys(svc.deviceInfo().moduleConfig).length === 1,
);
const info = svc.deviceInfo();
expect(Object.keys(info.localConfig).sort()).toEqual([
'device',
'network',
'security',
]);
expect(info.moduleConfig.telemetry).toMatchObject({
environmentUpdateInterval: 900,
powerMeasurementEnabled: true,
});
// key material is replaced with a marker — never exposed
expect(info.localConfig.security).toMatchObject({
publicKey: 'REDACTED',
privateKey: 'REDACTED',
adminKey: 'REDACTED',
isManaged: true, // non-secret fields pass through
});
expect(info.localConfig.network?.wifiPsk).toBe('REDACTED');
const json = JSON.stringify(info);
expect(json).not.toContain(secret);
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('serializes proto uint64 fields as strings (JSON-safe)', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
// powermonEnables is a proto uint64 — protobuf-es decodes it as native bigint
bridge.sockets[0].write(
configSectionFrame('power', { powermonEnables: 123n }),
);
await waitFor(() => svc.deviceInfo().localConfig.power !== undefined);
const info = svc.deviceInfo();
expect(info.localConfig.power?.powermonEnables).toBe('123'); // bigint -> decimal string
expect(() => JSON.stringify(info)).not.toThrow(); // no "Do not know how to serialize a BigInt"
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
it('summarizes NodeInfo snr/hopsAway/viaMqtt when present', async () => {
const bridge = await startBridge();
process.env.MESH_HOST = '127.0.0.1';
process.env.MESH_PORT = String(bridge.port);
const svc = new MeshService();
try {
svc.onModuleInit();
await waitFor(
() => bridge.sockets.length === 1 && svc.status().connected,
);
bridge.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
bridge.sockets[0].write(
nodeInfoFrame(42, {
user: { id: '!ot', longName: 'Other Node' },
snr: -2.5,
hopsAway: 1,
viaMqtt: true,
}),
);
await waitFor(async () => (await svc.nodes()).length === 2);
const nodes = await svc.nodes();
expect(nodes.find((n) => n.num === 42)).toEqual({
num: 42,
longName: 'Other Node',
lastHeard: null,
snr: -2.5,
hopsAway: 1,
viaMqtt: true,
});
// absent in the proto → omitted from the summary
expect(nodes.find((n) => n.num === KAMIL_NUM)).not.toHaveProperty('snr');
} finally {
svc.onModuleDestroy();
bridge.close();
}
});
});
+340 -9
View File
@@ -6,23 +6,118 @@ import {
ServiceUnavailableException,
} from '@nestjs/common';
import * as net from 'node:net';
import type * as Proto from '@meshtastic/protobufs';
import {
BROADCAST_ADDR,
PORT_POSITION_APP,
PORT_ROUTING_APP,
PORT_TEXT_MESSAGE_APP,
buildTextToRadio,
buildWantConfigToRadio,
decodeFromRadio,
decodePosition,
decodeRouting,
describeRoutingError,
extractFrames,
frame,
loadHwModelNames,
} from './codec.js';
/** One entry in the message history: an inbound text (dir 'rx') or one of our sends (dir 'tx'). */
export interface MessageRecord {
id: number;
dir: 'rx' | 'tx';
/** sender node num — rx only */
from?: number;
/** destination node num (broadcast addr for broadcasts) — tx only */
to?: number;
text: string;
channel: number;
/** epoch ms */
at: number;
/** tx only: pending until the routing ACK/NACK arrives; broadcasts stay pending (firmware strips want_ack pre-TX) */
status?: 'pending' | 'delivered' | 'failed';
/** tx only, when failed: human-readable Routing.Error reason */
ackError?: string;
}
// bounded history: keep the newest N records, in-memory only
const HISTORY_LIMIT = 100;
/** What we know about a node so far: full NodeInfo after sync, possibly just {num}+position for live-only nodes. */
type NodeEntry = Pick<Proto.Mesh.NodeInfo, 'num'> &
Partial<Omit<Proto.Mesh.NodeInfo, 'num'>>;
export interface NodeSummary {
num: number;
longName?: string;
shortName?: string;
/** meshtastic.HardwareModel enum name (e.g. "TBEAM"); omitted when unknown or UNSET */
hwModel?: string;
/** 0-100 = battery percent, >100 = mains powered (device convention) */
batteryLevel?: number;
/** epoch seconds of the last heard packet; null when never heard */
lastHeard: number | null;
position?: { lat: number; lon: number; alt?: number };
/** signal-to-noise ratio of the last received packet, dB (NodeInfo.snr) */
snr?: number;
/** hops from this node to the one that reported it (optional in proto) */
hopsAway?: number;
/** true when the node info arrived via MQTT rather than LoRa */
viaMqtt?: boolean;
}
/** Shape of deviceInfo() output: sync-captured device data, key material redacted. */
export interface DeviceInfo {
myNodeNum: number | null;
firmwareVersion?: string;
metadata?: Proto.Mesh.DeviceMetadata;
localConfig: Record<string, Record<string, unknown>>;
moduleConfig: Record<string, Record<string, unknown>>;
}
// protobuf-es decodes proto uint64 fields as native bigint, which JSON.stringify rejects;
// recursively convert so deviceInfo() output is always JSON-safe (bigint -> decimal string)
function jsonSafe<T>(value: T): T {
if (typeof value === 'bigint') return String(value) as T;
if (Array.isArray(value)) return value.map(jsonSafe) as T;
if (value !== null && typeof value === 'object') {
const out: Record<string, unknown> = {};
for (const [k, v] of Object.entries(value)) out[k] = jsonSafe(v);
return out as T;
}
return value; // primitives + undefined pass through
}
// key material must never leave the process — replaced with a marker so callers can see the field exists
const REDACTED = 'REDACTED';
/** Config sections that carry secrets: security (PKI keys) and network (wifi psk). */
function redactSection(
name: string,
value: Record<string, unknown>,
): Record<string, unknown> {
if (name !== 'security' && name !== 'network') return value;
const out = { ...value };
for (const key of ['publicKey', 'privateKey', 'adminKey', 'wifiPsk'])
if (out[key] !== undefined) out[key] = REDACTED;
return out;
}
@Injectable()
export class MeshService implements OnModuleInit, OnModuleDestroy {
private readonly logger = new Logger(MeshService.name);
private readonly host = process.env.MESH_HOST ?? '192.168.1.4';
private readonly port = parseInt(process.env.MESH_PORT ?? '4003', 10);
private readonly port = parseInt(process.env.MESH_PORT ?? '4403', 10);
// ponytail: fixed-interval retry, no backoff — fine for single-bridge use
private readonly reconnectMs = parseInt(
process.env.MESH_RECONNECT_MS ?? '5000',
10,
);
// sends are pinned to the test channel ("test", index 3) on purpose — never the primary channel
private readonly sendChannel = parseInt(
process.env.MESH_SEND_CHANNEL ?? '3',
10,
);
private socket: net.Socket | null = null;
private buffer: Uint8Array = new Uint8Array(0);
@@ -33,6 +128,15 @@ export class MeshService implements OnModuleInit, OnModuleDestroy {
number,
import('@meshtastic/protobufs').Channel.Channel
>();
// node database: NodeInfo frames from the initial sync + live POSITION_APP updates
private nodeMap = new Map<number, NodeEntry>();
// device metadata + per-section config/module-config streamed during the initial sync
private metadata: Proto.Mesh.DeviceMetadata | null = null;
private configSections = new Map<string, Record<string, unknown>>();
private moduleConfigSections = new Map<string, Record<string, unknown>>();
// message history (newest kept, capped at HISTORY_LIMIT) + pending tx records awaiting their routing ACK/NACK
private history: MessageRecord[] = [];
private pendingTx = new Map<number, MessageRecord>();
private reconnectTimer: NodeJS.Timeout | null = null;
private shuttingDown = false;
@@ -46,6 +150,7 @@ export class MeshService implements OnModuleInit, OnModuleDestroy {
this.socket?.destroy();
}
/** Bridge connection state: `{ connected, myNodeNum, host, port }`. */
status() {
return {
connected: this.connected,
@@ -56,6 +161,7 @@ export class MeshService implements OnModuleInit, OnModuleDestroy {
}
// psk/keys are deliberately not included — never expose them over HTTP
/** Device channels as `{ index, name, uplinkEnabled, downlinkEnabled }[]` sorted by index; empty until the initial sync completes. */
channels(): {
index: number;
name: string;
@@ -72,23 +178,184 @@ export class MeshService implements OnModuleInit, OnModuleDestroy {
}));
}
/**
* Device info captured during the initial sync: this device's node number, firmware version and
* metadata (DeviceMetadata as-is — it carries no key material), plus per-section config and
* module-config messages keyed by section name. In-memory only; empty until the sync completes,
* reset on every bridge reconnect. Key material is redacted: security publicKey/privateKey/adminKey
* and network wifiPsk are replaced with "REDACTED" — never exposed over HTTP. Proto uint64 fields
* (e.g. power.powermonEnables) come back as decimal strings so the output always JSON-serializes.
*/
deviceInfo(): DeviceInfo {
const out: DeviceInfo = {
myNodeNum: this.myNodeNum,
localConfig: {},
moduleConfig: {},
};
if (this.metadata) {
out.firmwareVersion = this.metadata.firmwareVersion;
out.metadata = jsonSafe(this.metadata);
}
for (const [name, value] of this.configSections)
out.localConfig[name] = jsonSafe(redactSection(name, value));
for (const [name, value] of this.moduleConfigSections)
out.moduleConfig[name] = jsonSafe(value);
return out;
}
/**
* Lean summaries of all known nodes, sorted by node number.
* Names/hwModel/batteryLevel/snr/hopsAway/viaMqtt appear only when the device reported them;
* `lastHeard` is epoch seconds (null = never heard); `position` only when both coordinates are known.
*/
async nodes(): Promise<NodeSummary[]> {
const names = await loadHwModelNames();
return [...this.nodeMap.values()]
.sort((a, b) => a.num - b.num)
.map((n) => this.summarize(n, names));
}
/**
* Look up one node: exact node number first (numbers and numeric strings),
* then case-insensitive EXACT long/short name, else the unique case-insensitive
* SUBSTRING match across long/short names. Returns null when nothing or more
* than one node matches. Reused by send-by-name lookups.
*/
async node(idOrName: string | number): Promise<NodeSummary | null> {
const q = String(idOrName).trim().toLowerCase();
if (!q) return null;
const names = await loadHwModelNames();
if (/^\d+$/.test(q)) {
const hit = this.nodeMap.get(Number(q));
if (hit) return this.summarize(hit, names);
}
const all = [...this.nodeMap.values()];
// exact name match wins over substring; a string always contains itself, so an ambiguous exact set can never become unique below
const exact = all.filter(
(n) =>
n.user &&
(n.user.longName.toLowerCase() === q ||
n.user.shortName.toLowerCase() === q),
);
if (exact.length === 1) return this.summarize(exact[0], names);
const sub = all.filter(
(n) =>
n.user &&
(n.user.longName.toLowerCase().includes(q) ||
n.user.shortName.toLowerCase().includes(q)),
);
if (sub.length === 1) return this.summarize(sub[0], names);
return null;
}
/**
* Resolve a send target to a node number for sendText().
* undefined/"" and "!b"/"broadcast" (case-insensitive, trimmed) → BROADCAST_ADDR;
* numbers pass through as-is (must be an integer in 1..0xffffffff); numeric strings are parsed the same way;
* anything else is looked up via node() — throws `no node matching '<to>'` when nothing or more than one matches.
*/
async resolveDest(to?: number | string): Promise<number> {
if (typeof to === 'number') {
this.assertNodeNum(to);
return to;
}
const s = String(to ?? '').trim();
if (!s) return BROADCAST_ADDR; // omitted or empty → broadcast
if (s === '!b' || s.toLowerCase() === 'broadcast') return BROADCAST_ADDR;
if (/^\d+$/.test(s)) {
this.assertNodeNum(Number(s));
return Number(s);
}
const hit = await this.node(s);
if (!hit) throw new Error(`no node matching '${to}'`);
return hit.num;
}
private assertNodeNum(n: number): void {
if (!Number.isInteger(n) || n < 1 || n > BROADCAST_ADDR)
throw new Error(`invalid node number '${n}'`);
}
/**
* Message history, newest first: inbound TEXT_MESSAGE_APP packets (dir 'rx') and our sends (dir 'tx').
* tx records start 'pending' and move to 'delivered'/'failed' when the routing ACK/NACK arrives;
* broadcasts stay 'pending' because firmware strips want_ack before TX. In-memory only, last 100, reset on reconnect.
*/
messages(): MessageRecord[] {
return [...this.history].reverse();
}
/** Send `text` to node `to` on the pinned test channel; returns the packet id. Throws ServiceUnavailable when the bridge is down. */
async sendText(to: number, text: string): Promise<number> {
if (!this.connected || !this.socket)
throw new ServiceUnavailableException('bridge not connected');
const { bytes, id } = await buildTextToRadio(to, text);
const { bytes, id } = await buildTextToRadio(to, text, this.sendChannel);
const rec: MessageRecord = {
id,
dir: 'tx',
to,
text,
channel: this.sendChannel,
at: Date.now(),
status: 'pending',
};
this.pushHistory(rec);
this.pendingTx.set(id, rec);
this.socket.write(bytes);
return id;
}
private pushHistory(rec: MessageRecord): void {
this.history.push(rec);
// ponytail: shift on a ≤100 array is fine; true ring buffer only if this ever gets hot
if (this.history.length > HISTORY_LIMIT) this.history.shift();
}
private summarize(n: NodeEntry, names: Map<number, string>): NodeSummary {
const s: NodeSummary = { num: n.num, lastHeard: n.lastHeard || null };
if (n.user?.longName) s.longName = n.user.longName;
if (n.user?.shortName) s.shortName = n.user.shortName;
// omit UNSET (enum value 0) rather than report "UNSET"
const hwName = n.user?.hwModel ? names.get(n.user.hwModel) : undefined;
if (hwName && hwName !== 'UNSET') s.hwModel = hwName;
// optional proto fields: undefined when the device never reported them
const battery = n.deviceMetrics?.batteryLevel;
if (battery !== undefined) s.batteryLevel = battery;
// non-optional proto scalars decode with their defaults (snr=0, viaMqtt=false), so a default value means "not reported"
if (n.snr !== undefined && n.snr !== 0) s.snr = n.snr;
if (n.hopsAway !== undefined) s.hopsAway = n.hopsAway; // optional in proto → truly absent when not reported
if (n.viaMqtt === true) s.viaMqtt = true;
const p = n.position;
if (p?.latitudeI !== undefined && p.longitudeI !== undefined) {
// alt included only when the device sent it — protobuf-es leaves absent optionals undefined, so an explicit 0 (sea level) is kept
s.position = { lat: p.latitudeI * 1e-7, lon: p.longitudeI * 1e-7 };
if (p.altitude !== undefined) s.position.alt = p.altitude;
}
return s;
}
private connect(): void {
if (this.shuttingDown) return;
const socket = net.createConnection({ host: this.host, port: this.port });
this.socket = socket;
socket.on('connect', () => {
this.connected = true;
// fresh sync on every (re)connect — drop stale channels from the old session
// fresh sync on every (re)connect — drop stale channels/nodes/device info/history from the old session
this.channelMap = new Map();
this.nodeMap = new Map();
this.metadata = null;
this.configSections.clear();
this.moduleConfigSections.clear();
this.history = [];
this.pendingTx.clear();
this.logger.log(`bridge connected ${this.host}:${this.port}`);
const nonce = Math.floor(Math.random() * 0xffffffff) || 1;
buildWantConfigToRadio(nonce)
.then((bytes) => socket.write(frame(bytes)))
.catch((err: unknown) =>
this.logger.error(`want_config failed: ${String(err)}`),
);
this.logger.log(`requested initial sync (want_config_id=${nonce})`);
});
socket.on('data', (chunk) => {
const merged = new Uint8Array(this.buffer.length + chunk.length);
@@ -122,9 +389,9 @@ export class MeshService implements OnModuleInit, OnModuleDestroy {
this.reconnectTimer = setTimeout(() => this.connect(), this.reconnectMs);
}
private handleFromRadio(
private async handleFromRadio(
fr: import('@meshtastic/protobufs').Mesh.FromRadio,
): void {
): Promise<void> {
const v = fr.payloadVariant;
switch (v?.case) {
case 'myInfo':
@@ -135,9 +402,28 @@ export class MeshService implements OnModuleInit, OnModuleDestroy {
// device streams one Channel per table slot during initial sync
this.channelMap.set(v.value.index, v.value);
break;
case 'nodeInfo':
// device streams the whole node DB during initial sync
this.nodeMap.set(v.value.num, v.value);
break;
case 'metadata':
// DeviceMetadata streamed once during initial sync (no key material in it)
this.metadata = v.value;
break;
case 'config': {
// device streams one Config per section during initial sync
const sec = v.value.payloadVariant;
if (sec?.case) this.configSections.set(sec.case, sec.value);
break;
}
case 'moduleConfig': {
const mod = v.value.payloadVariant;
if (mod?.case) this.moduleConfigSections.set(mod.case, mod.value);
break;
}
case 'configCompleteId':
this.logger.log(
`bridge ready (config complete), ${this.channelMap.size} channels`,
`bridge ready (config complete), ${this.channelMap.size} channels, ${this.nodeMap.size} nodes`,
);
break;
case 'packet': {
@@ -147,9 +433,54 @@ export class MeshService implements OnModuleInit, OnModuleDestroy {
? pkt.payloadVariant.value
: undefined;
if (decoded && decoded.portnum === PORT_TEXT_MESSAGE_APP) {
this.logger.log(
`[mesh] ${pkt.from} -> ${pkt.to}: "${new TextDecoder().decode(decoded.payload)}"`,
);
const text = new TextDecoder().decode(decoded.payload);
this.logger.log(`[mesh] ${pkt.from} -> ${pkt.to}: "${text}"`);
this.pushHistory({
id: pkt.id,
dir: 'rx',
from: pkt.from,
text,
channel: pkt.channel ?? 0,
at: Date.now(),
});
} else if (decoded && decoded.portnum === PORT_POSITION_APP) {
// live position update: the Position is serialized in Data.payload
let pos: Proto.Mesh.Position | undefined;
try {
pos = await decodePosition(decoded.payload);
} catch {
pos = undefined; // malformed payload — skip, keep whatever we had
}
if (pos?.latitudeI !== undefined && pos.longitudeI !== undefined) {
const num = pkt.from;
this.nodeMap.set(num, {
...this.nodeMap.get(num),
num,
position: pos,
});
}
} else if (decoded && decoded.portnum === PORT_ROUTING_APP) {
// ACK/NACK for our want_ack sends: Routing serialized in Data.payload,
// Data.requestId = the original packet id we sent
let routing: Proto.Mesh.Routing | undefined;
try {
routing = await decodeRouting(decoded.payload);
} catch {
routing = undefined; // malformed payload — skip
}
if (routing?.variant.case === 'errorReason' && decoded.requestId) {
const rec = this.pendingTx.get(decoded.requestId);
if (rec) {
const reason = routing.variant.value;
if (reason === 0)
rec.status = 'delivered'; // Routing_Error.NONE
else {
rec.status = 'failed';
rec.ackError = await describeRoutingError(reason);
}
this.pendingTx.delete(decoded.requestId);
}
}
}
break;
}