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feat(companion): on-device room login with saved passwords

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Log in to a room server from the device UI with no phone app: picking a
room prompts for its password (blank allowed for open rooms), and a
context-menu "Login..." allows re-login. Successful passwords are
persisted to a dedicated /room_pw file so a previously-used room logs
back in after reboot without retyping; a failed login forgets the
(now-stale) saved password so the next attempt prompts again.

The room-password file is written via a temp file + atomic rename
(new DataStore::commitFile helper), matching the crash-safety of
contacts/channels persistence.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
MarekZegare4
2026-06-26 10:55:24 +02:00
co-authored by Claude Opus 4.8
parent 57774d41f3
commit be9f3db8c6
9 changed files with 267 additions and 2 deletions
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examples/companion_radio/MyMesh.h
+22 -1
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@@ -208,10 +208,30 @@ private:
bool getChannelForSave(uint8_t channel_idx, ChannelDetails& ch) override { return getChannel(channel_idx, ch); }
void clearPendingReqs() {
pending_login = pending_status = pending_telemetry = pending_discovery = pending_req = 0;
pending_login = pending_status = pending_telemetry = pending_discovery = pending_req = ui_pending_login = 0;
}
public:
// On-device UI login to a room/repeater contact — no phone app required.
// The room server's ACL grants permission per-identity (self_id), not per
// command source, so this reuses the same sendLogin() the BLE CMD_SEND_LOGIN
// path uses; the async result lands in onContactResponse() and is pushed to
// the UI via AbstractUITask::onRoomLoginResult().
bool sendRoomLogin(const ContactInfo& contact, const char* password) {
uint32_t est_timeout;
if (sendLogin(contact, password, est_timeout) == MSG_SEND_FAILED) return false;
clearPendingReqs();
memcpy(&ui_pending_login, contact.id.pub_key, 4); // match this in onContactResponse()
return true;
}
// On-device-saved room/repeater login passwords, persisted to flash (own
// small file, independent of /contacts3) so a room that's already been
// logged into doesn't need its password retyped after reboot.
bool saveRoomPassword(const uint8_t* pub_key, const char* password);
bool getRoomPassword(const uint8_t* pub_key, char* out_password, uint8_t max_len);
void forgetRoomPassword(const uint8_t* pub_key);
void savePrefs() { _store->savePrefs(_prefs, sensors.node_lat, sensors.node_lon); }
void saveRTCTime() { _store->saveRTCTime(); }
DataStore* getDataStore() const { return _store; }
@@ -299,6 +319,7 @@ private:
DataStore* _store;
NodePrefs _prefs;
uint32_t pending_login;
uint32_t ui_pending_login; // like pending_login, but triggered by on-device UI instead of BLE/USB app
uint32_t pending_status;
uint32_t pending_telemetry, pending_discovery; // pending _TELEMETRY_REQ
uint32_t pending_req; // pending _BINARY_REQ