Laurence
87a00265a3
Adds the WiFi-to-app sync path and the on-device open REST API implementing the
device paths of api/openapi.yaml, plus persistent config in NVS.
What changed:
- firmware/src/config.{h,cpp}: NVS (Preferences) store - stable device id from MAC,
WiFi SSID/PSK, API bearer token, upload settings. Secrets stay off the SD card.
- firmware/src/net_wifi.{h,cpp}: station join with stored creds; SoftAP provisioning
fallback when no creds / join fails; mDNS openscribe.local; reconnect in loop().
- firmware/src/api_http.{h,cpp}: synchronous WebServer on :80. Routes: GET /device,
GET/PUT /device/config, GET /recordings, GET /recordings/{id}, GET
/recordings/{id}/audio (HTTP Range -> 206 + Content-Range), DELETE /recordings/{id},
POST /record/start|stop. Bearer-token auth on mutating calls (open when no token).
- firmware/src/storage.{h,cpp}: list/read/delete/count helpers + path builders.
- firmware/src/main.cpp: wire config + WiFi + API into setup/loop; bump fw to 0.2.0.
- firmware/platformio.ini: add bblanchon/ArduinoJson@^7 (only new dep).
- state/: ARCHITECTURE, NOTES, TODO updated; security + NTP follow-ups recorded.
Why:
- This is the WiFi transfer channel and the device half of the "completely open API":
clients can list, download (resumable), delete and control without any cloud.
Notes:
- Not compiled locally (no PlatformIO on the dev host) or hardware-verified; CI builds
both board profiles. Security follow-ups logged: API is open when no token is set,
and the SoftAP uses a fixed default passphrase (make user-set at M4/BLE).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
// SPDX-License-Identifier: GPL-3.0-only
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#include "net_wifi.h"
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#include <ESPmDNS.h>
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#include <WiFi.h>
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#include "config.h"
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namespace {
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bool apMode = false;
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uint32_t lastReconnect = 0;
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void startMdns() {
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// openscribe.local -> device; advertise the HTTP API service.
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if (MDNS.begin("openscribe")) {
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MDNS.addService("http", "tcp", 80);
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}
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}
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} // namespace
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namespace net_wifi {
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bool begin() {
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const String ssid = config::wifiSsid();
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if (!ssid.isEmpty()) {
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WiFi.mode(WIFI_STA);
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WiFi.setSleep(false);
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WiFi.begin(ssid.c_str(), config::wifiPsk().c_str());
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const uint32_t t0 = millis();
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while (WiFi.status() != WL_CONNECTED && (millis() - t0) < 15000) {
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delay(200);
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}
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}
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if (WiFi.status() != WL_CONNECTED) {
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// Provisioning fallback: open a SoftAP so a client can reach the API and set WiFi.
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apMode = true;
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WiFi.mode(WIFI_AP);
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String ap = "OpenScribe-" + config::deviceId().substring(11); // MAC suffix
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// WPA2 needs an 8+ char passphrase; note in TODO to make this user-set (M4).
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WiFi.softAP(ap.c_str(), "openscribe");
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}
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startMdns();
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return true;
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}
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void loop() {
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if (apMode) return;
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if (WiFi.status() != WL_CONNECTED && (millis() - lastReconnect) > 10000) {
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lastReconnect = millis();
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WiFi.reconnect();
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}
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}
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bool connected() { return WiFi.status() == WL_CONNECTED; }
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bool isAccessPoint() { return apMode; }
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String ip() {
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return apMode ? WiFi.softAPIP().toString() : WiFi.localIP().toString();
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}
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} // namespace net_wifi
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