mckero
ce68f48765
The grid lookup returned String? and swallowed everything with catch { null }, so a
timeout, an expired cookie, a QRZ layout change and a station that simply has not
published a locator were one indistinguishable blank. The operator saw an empty grid
with no way to know that re-pasting their cookie would fix it. There was also no
retry at all, on a phone, mid-pass, on mobile data.
QrzGrid names the four outcomes and QrzGridParser holds the parsing, which is pure
string work and now testable without a network. The fetch moves to core:data as
QrzGridSource, using the project's own OkHttp client with three attempts and 700ms
then 2000ms of backoff. Only transport failures and 5xx are retried; a 4xx would
repeat identically. This also gets java.net.URL I/O out of core:domain, which that
module is meant to stay clear of for the KMP move.
Classifying signed-out took two goes. Keying on the detail table being absent held
for an expired cookie - QRZ genuinely serves no detail rows to an anonymous visitor,
verified against a live response - but an audit found that a callsign QRZ has never
heard of returns HTTP 200 with no detail rows either, because QRZ serves its search
form instead. That would have reported a mistyped callsign as an expired cookie and
sent the operator into settings mid-pass to re-paste one that was never broken. It
now keys on QRZ's own "Login is required for additional detail" notice, so an absent
locator degrades to the harmless outcome and only QRZ actually asking for a login
triggers the cookie prompt. All three cases are measured against live responses.
Not yet wired in: LogTab and SettingsScreen still call the old QrzGridClient, so
nothing changes for the operator yet. Cutting over needs an interface in core:domain
and a MainContainer provider, because feature modules cannot reach core:data
directly - and the cookie itself belongs in SettingsRepo rather than the separate
prefs file a composable currently reads through LocalContext.
Look4Sat: Satellite tracker
Radio satellite tracker and pass predictor for Android, inspired by Gpredict
Track satellite passes with ease!
Thanks to Celestrak and SatNOGS you have access to over 9000 active satellites.
You can search the entire database by NORAD Catalog Number or the satellite's name.
Orbital positions and passes are calculated relative to your location.
To get reliable data make sure to set the station position via the app Settings.
The application is built using Kotlin, Coroutines, Jetpack Compose and Navigation.
It is now and always will be completely ad-free and open-source.
Main features:
- Predicting satellite positions and passes for up to 10 days
- Showing the list of currently active and upcoming satellite passes
- Showing the active pass progress, polar trajectory and transceivers info
- Showing the satellite positional data, footprint and ground track on the map
- Custom TLE satellite data import is available via Three Line Element .txt files
- Offline first: calculations are made offline. Weekly TLE data update is recommended.
License
The Look4Sat application code is licensed under the GNU General Public License v3.0.
The CW decoder in feature/cw bundles the DeepCW
neural decoding model, licensed under the GNU Affero General Public License v3.0 only
(AGPL-3.0-only). Because the combined work incorporates an AGPL-3.0 component, the
combined work is distributed under the
GNU Affero General Public License v3.0 — GPL-3.0 Section 13 permits the
combination, and AGPL-3.0 Section 13 applies to the combined work as a whole.
Model provenance and attribution are documented in
feature/cw/licenses/NOTICE.md; the original GPL-3.0
text is preserved at feature/cw/licenses/Look4Sat-GPL-3.0.txt. The CW model runs
locally on-device and does not provide services over a network.