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12 commits

Author SHA1 Message Date
cjkas
43191ba312 feat: sign tokens with a secret key, compare them in constant time
Tokens were HMAC(serverId, credentials + client IP). serverId is public
(mDNS, MQTT, /loginContext), so anyone who saw a token could test PIN
guesses offline. The key is now 32 random bytes made on first boot in
their own NVS namespace, which no settings save clears and no backup
holds. It is made before WiFi starts, from the bootloader's entropy
source.

Tokens are compared with tokenMatches, which takes the same time
whatever the guess, on the apikey header, the socket upgrade and
/login.

createAPIToken never freed its mbedtls context, so every token it made
leaked: 563 bytes per login on the device, until it ran out of memory
after about 150 logins. It now frees it: 0 bytes over 500 logins.

Every token made before the upgrade is refused once. The web UI asks
for login again, and Home Assistant 3.0 logs in again by itself.

Closes #80

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-27 19:41:43 +01:00
cjkas
ff7517e10f fix: review findings on the login throttle
- The throttle runs on a 64-bit clock in ms (esp_timer_get_time()), so a
  slot left alone for 49.7 days isn't brought back by millis() wrapping
  round to its old failure.
- Web.cpp turns the client into the throttle's key in one place, and
  says that an IPv6 client would share key 0; names are clearer
  (retryMs, vacantSlot).
- The shared slot's test now succeeds from the IP counted in it, so a
  success that cleared the shared slot would fail it.
- GLOSSARY.md names it the login throttle, with lockouts, and
  SECURITY_PLAN.md and ADR 0006 use that name.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-27 18:44:39 +01:00
cjkas
970256e7f6 fix: edit ops second review findings
- A group's sunSensor and a shade's flags are refused by name: the routes
  don't set them.
- setPaired needs paired, and without a shade id it is a bad request.
- groupOptions' payload is parsed in ProtoEdits (parseReadPayload).
- The assembler's mutex is static, so creating it can't fail.
- protoIsReadOp and protoIsShadeOp are gone; the tests use protoOpKind.
- Native tests for missing(), offeredRemoteAddress and the edit ops
  against the TYPE table.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-24 18:29:34 +02:00
cjkas
e25747d395 docs: ADRs 0005-0007 for socket protocol 2
ADR 0005: the web UI and Home Assistant talk to the device over one
websocket protocol (ops on loop(), sync with next, a JSON envelope a
binary encoding can reuse, short keys described by a schema).
ADR 0006: two security modes and eleven HTTP routes on port 80.
ADR 0007: the firmware no longer updates itself from GitHub.

ADR 0002 is amended: its single-writer rule stands, but edits now get
one reply and reads no longer go through a ModelSnapshot.
SECURITY_PLAN.md is revised to match, and keeps the token key, login
backoff, CORS and Origin work. PROTOCOL.md starts as an outline, and
GLOSSARY.md gains the socket protocol and security terms.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-22 20:50:33 +02:00
cjkas
4f8eac03ac refactor: move the shade's behaviour into ShadeBehaviour
PR B of SHADE_BEHAVIOUR_PLAN.md. What a shade does with frames, commands,
group commands and radio events moves unchanged from SomfyShade into
ShadeBehaviour, which builds natively and is pinned by test_shadebehaviour.

ShadeBehaviour reads ShadeSettings and RemoteSettings, gets the time on
every input, and holds the motion state that other files now read through
state(). It sends through MotorLink and reports through ShadeEvents
(changes, commands, save wanted, sensor flags) as things happen.
SomfyShade wraps it: its MotorLink is SomfyRemote::sendCommandAfter, which
now leaves the sender out of the echo and radio hold because the module
hears its own frame. lastFrame stays shared with the send path.

ConfigFile writes through restore() and clearTilt(), SomfyShadeOps through
setPosition(). The pinning tests label where the copies of a rule disagree
"today:", for the reconcile phase.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-16 21:21:38 +02:00
cjkas
fa7aaf0d49 refactor: hold shade settings in ShadeSettings and RemoteSettings
The shade behaviour module (SHADE_BEHAVIOUR_PLAN.md, PR B) reads its
settings through read-only structs, so they get one home each:
RemoteSettings (flipCommands, bitLength, repeats) under SomfyRemote,
shared with groups, and ShadeSettings (types, travel times, step size,
flipPosition, simMy, sunSensor) under SomfyShade. Both are base structs,
so shade->upTime and group->repeats keep working.

A shade's flags byte is split by owner: simMy and sunSensor are settings,
light is a field, and the sun flag, sunny, windy, demo mode and lighted
bits are stateFlags. getFlags()/setFlags() put the byte together and take
it apart for the config file, JSON, MQTT, events and group flags, so
nothing saved or sent changes. Groups keep their own flags byte.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-16 20:31:39 +02:00
cjkas
a0ad301779 refactor: split the transports into the modules GLOSSARY.md names
Code moves unchanged; only files and names change.

- entryPoints/WebUiRoutes.cpp: registerWebUiRoutes(), the port 80 routes
  and the UI's files, with the helpers only they use.
- entryPoints/ApiRoutes.cpp: registerApiRoutes(), the port 8081 routes.
- entryPoints/Web.cpp keeps the servers' lifecycle, auth and the handlers
  both route sets call; entryPoints/WebRoutes.h is what the three share.
- entryPoints/MQTT.* -> MqttConnection.*, class MQTTClass -> MqttConnection.
- outputs/SomfyMqtt.cpp -> outputs/MqttPublisher.cpp.
- outputs/Sockets.* -> outputs/SocketEmitter.*.

The subscribe and unsubscribe lists (the latter repeated
groups/+/direction/set) become MqttCommands' MQTT_COMMAND_TOPICS, and a
native test checks the parser takes every topic in it. GLOSSARY.md gains
MqttConnection and Change fan-out.

328 native tests. Flash: esp32devdbg +3,112 bytes (the routes are a second
ArduinoJson file), esp32dev -2,336 bytes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-16 13:47:56 +02:00
cjkas
8d4c621d5a docs: plan domain modules behind a LoopQueue
ADR-0002 makes loop() the only writer of the shade model. The plan
puts ShadeRequests, ModelEditor and ModelSnapshot behind one LoopQueue
that the HTTP routes and MQTT commands feed, with the outputs fed by
per-field dirty bits. GLOSSARY.md gains the terms.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-15 21:38:43 +02:00
cjkas
e624a4177d refactor: move the transports into entryPoints and outputs
The HTTP servers and MQTT command handling go to src/entryPoints/, the
socket emitter and the MQTT and socket output of shades, groups and rooms
to src/outputs/. GLOSSARY.md names what they become once split:
WebUiRoutes, ApiRoutes and MqttCommands in, MqttPublisher and
SocketEmitter out.

Only files and include paths change. esp32devdbg flash goes from
1,546,405 to 1,546,257 bytes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-15 19:41:49 +02:00
cjkas
c71b5d8a85 docs: record phase 2 of the Somfy.cpp split
GLOSSARY.md gains the shade terms the new modules use (favorite, step,
sensor frame, sun flag, extend and retract) and the pulse decoder. The
split plan marks phase 2 done, with what changed in behaviour.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-13 21:22:04 +02:00
cjkas
b768c5f987 fix: count the set-My settle delay from the end of the job ahead
The delay was counted from when the job was queued.  The stop at the
target is queued just before the favorite and is on air for about 245ms,
so the 200ms settle delay had run out before the favorite's turn and only
the 100ms beat between jobs was left.  A delayed job now waits its delay
after whichever came later: being queued, or the job ahead of it going off
air.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-13 15:03:17 +02:00
cjkas
4135f21ee7 refactor: let one RadioScheduler own the radio job queue
The order radio jobs go out in was spread across callers, file statics and
the radio task: each remote tracked its last back job so a stop could decide
whether it may jump the queue, and the task kept a separate count of the back
jobs it had taken.  RadioScheduler now owns the waiting jobs, their tickets,
the stop-goes-first rule, delayed jobs, flush and suspend, and the outcome of
every job.  It is plain C++, with the time passed in and the caller locking,
so all of it is covered by native tests.  Transceiver keeps the FreeRTOS task,
the locks and the CC1101.

sendCommandAfter returns the job's ticket instead of leaving it in lastTxSeq.

Two stops for the same remote now go out in the order they were sent; queued
to the front they used to come out reversed, putting the rolling codes out of
order.

Adds GLOSSARY.md for the radio terms.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 20:36:32 +02:00