mirror of
https://github.com/ChuckBuilds/LEDMatrix.git
synced 2026-10-04 14:25:08 +00:00
ChuckandClaude Opus 5
0ab95586fb
* fix(web): say when a system action failed for want of passwordless sudo
POSTing reboot_system to a Pi returns, in full:
{"message": "Action failed; see logs for details", "status": "error"}
The cause is that the web interface runs unprivileged, and its
systemctl/reboot/journalctl calls only work once
scripts/install/configure_web_sudo.sh has granted NOPASSWD. first_time_install.sh
never invokes that script and no user-facing doc mentions it, so on a fresh
device every privileged action fails -- start_display, stop_display, the
autostart toggles, reboot, and the log viewer.
That last one closes the loop: "see logs for details" is unreachable advice
when journalctl is refused for the same reason. This is exactly the failure
src/web_interface/error_handler.py's describe_exception() was written to break,
and /system/action's exception handler was still discarding the cause instead
of using the helper the module already imports.
Two changes, no behaviour change when things work:
- The exception path now returns 'details': describe_exception(e), matching how
the other handlers in this blueprint already report.
- A failure whose stderr or exception text is sudo refusing to prompt ("a
password is required", "no tty present", "a terminal is required") reports
what to do about it, naming configure_web_sudo.sh. Unrelated failures keep
the generic message and their stderr, so a missing unit is not blamed on
sudo.
Granting the sudo rights is left alone deliberately: auto-running a script that
hands out NOPASSWD is a security decision for the maintainer, not something to
slip into an installer. Making the refusal legible is the part that is
unambiguously an improvement.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
* fix(web): apply the sudo hint on the on-demand start_display path too
start_display with a mode builds its own response and returns before the shared
nonzero-result path, so a recognized sudo refusal there reported only "Failed to
start display" and said nothing about the passwordless sudo that refused it --
the exact gap the rest of this PR closes everywhere else.
Raised by CodeRabbit on #560 and verified against the code before fixing: the
branch at api_v3.py:2058 does return early past the shared handler.
Three regression cases: the on-demand branch reports the sudo cause, keeps its
"Display started" message on success, and does not blame an unrelated failure on
sudo.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>