Files
AR-Autopilot/arautopilot/studio/flash_console.py
T
alro65 b68cd64cf1 fix(studio): Qt6 compat + Ctrl+C signal handler
- flash_console: setTextFormat(Qt.TextFormat.RichText) — int overload removed in Qt6
- installer_widget: same fix + add Qt to QtCore import
- project_editor/installer_widget: Session.has() → Session.can()
- app.py: signal.signal(SIGINT, SIG_DFL) so Ctrl+C kills the process from terminal

AR_electronics — AR-Autopilot Project
2026-05-24 11:45:17 -04:00

405 lines
14 KiB
Python

"""Flash Console widget -- "mini Arduino IDE" inside the Studio.
What it does
------------
- Enumerates available serial ports (pyserial).
- Lets the operator pick the firmware variant (``esp32-dev`` or
``esp32-debug``).
- Compiles the firmware via PlatformIO (`pio run -e <variant> -d
firmware/ar_autopilot_v1`).
- Flashes the firmware via `pio run -t upload --upload-port <port>`.
- Streams the build/flash output to a read-only text area.
Permissions
-----------
- Super Admin: flashes directly, single factor.
- Engineer: flashes only after providing the Super Admin's PIN. The
dialog asks for the SA's PIN inline; on success the audit
trail records both engineer's and SA's user_ids.
- Owner / User: the Flash Console button is hidden.
The actual ``pio`` invocations run in a worker thread so the GUI never
blocks.
"""
from __future__ import annotations
import os
import shlex
import subprocess
import sys
from pathlib import Path
from typing import Optional
from PySide6.QtCore import QObject, Qt, QThread, Signal
from PySide6.QtWidgets import (
QComboBox,
QDialog,
QDialogButtonBox,
QFormLayout,
QGroupBox,
QHBoxLayout,
QLabel,
QLineEdit,
QMessageBox,
QPlainTextEdit,
QPushButton,
QVBoxLayout,
QWidget,
)
from arautopilot.core.audit import AuditOutcome
from arautopilot.core.rbac import Capability
from arautopilot.studio.session import Session
REPO_ROOT = Path(__file__).resolve().parents[2]
FIRMWARE_DIR = REPO_ROOT / "firmware" / "ar_autopilot_v1"
PIO_EXE_CANDIDATES = [
REPO_ROOT / ".venv" / "Scripts" / "pio.exe", # Windows venv
REPO_ROOT / ".venv" / "bin" / "pio", # POSIX venv
Path("pio"), # PATH fallback
]
def _find_pio() -> Path | None:
for c in PIO_EXE_CANDIDATES:
if c.exists():
return c
# Last-resort PATH lookup -- subprocess will find it.
return Path("pio")
def list_serial_ports() -> list[tuple[str, str]]:
"""Return ``[(device, description), ...]`` for every available port."""
try:
from serial.tools import list_ports # type: ignore[import-untyped]
except ImportError:
return []
return [(p.device, p.description or "") for p in list_ports.comports()]
class _PioWorker(QObject):
"""Runs `pio ...` in a background thread and streams stdout."""
line = Signal(str) # one line of output (no trailing \n)
finished_ok = Signal(int) # exit code on success
failed = Signal(str) # error description
def __init__(self, argv: list[str], cwd: Path) -> None:
super().__init__()
self._argv = argv
self._cwd = cwd
self._proc: subprocess.Popen[str] | None = None
self._cancel = False
def run(self) -> None:
try:
env = os.environ.copy()
env.setdefault("PYTHONIOENCODING", "utf-8")
self._proc = subprocess.Popen(
self._argv,
cwd=str(self._cwd),
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
bufsize=1,
env=env,
)
assert self._proc.stdout is not None
for raw_line in self._proc.stdout:
if self._cancel:
break
self.line.emit(raw_line.rstrip("\n"))
code = self._proc.wait()
self.finished_ok.emit(code)
except FileNotFoundError as exc:
self.failed.emit(f"executable not found: {exc}")
except Exception as exc: # noqa: BLE001
self.failed.emit(f"unexpected error: {exc}")
def cancel(self) -> None:
self._cancel = True
if self._proc is not None:
try:
self._proc.terminate()
except Exception:
pass
class FlashConsoleWidget(QWidget):
"""A self-contained Flash Console for embedding in the main window."""
def __init__(self, session: Session, parent: QWidget | None = None) -> None:
super().__init__(parent)
self._session = session
self._thread: QThread | None = None
self._worker: _PioWorker | None = None
self._build_ui()
self.refresh_ports()
# ----- UI ------------------------------------------------------------
def _build_ui(self) -> None:
outer = QVBoxLayout(self)
outer.setContentsMargins(8, 8, 8, 8)
header = QLabel(
"<b>Flash Console</b><br/>"
"Compile and flash AR-Autopilot firmware to an AR-NMEA-IO board.<br/>"
f"Logged in as <b>{self._session.user.display_name}</b> "
f"({self._session.role.value})."
)
header.setTextFormat(Qt.TextFormat.RichText)
header.setWordWrap(True)
outer.addWidget(header)
form_group = QGroupBox("Target")
form = QFormLayout(form_group)
port_row = QHBoxLayout()
self._port_combo = QComboBox()
self._port_combo.setMinimumWidth(280)
port_row.addWidget(self._port_combo, stretch=1)
refresh_btn = QPushButton("Refresh")
refresh_btn.clicked.connect(self.refresh_ports)
port_row.addWidget(refresh_btn)
form.addRow("Serial port:", port_row)
self._variant_combo = QComboBox()
self._variant_combo.addItem("esp32-dev (release, -Os)", userData="esp32-dev")
self._variant_combo.addItem("esp32-debug (-O0, verbose)", userData="esp32-debug")
form.addRow("Variant:", self._variant_combo)
outer.addWidget(form_group)
action_row = QHBoxLayout()
self._compile_btn = QPushButton("Compile only")
self._compile_btn.clicked.connect(self._on_compile)
action_row.addWidget(self._compile_btn)
self._flash_btn = QPushButton("Compile + Flash")
self._flash_btn.clicked.connect(self._on_flash)
action_row.addWidget(self._flash_btn)
self._cancel_btn = QPushButton("Cancel")
self._cancel_btn.setEnabled(False)
self._cancel_btn.clicked.connect(self._on_cancel)
action_row.addWidget(self._cancel_btn)
action_row.addStretch(1)
outer.addLayout(action_row)
self._output = QPlainTextEdit()
self._output.setReadOnly(True)
self._output.setStyleSheet(
"background-color: #0d1117; color: #c9d1d9; font-family: Consolas, "
"'Cascadia Mono', monospace; font-size: 11px;"
)
outer.addWidget(self._output, stretch=1)
# Gate the buttons by capability.
if not self._session.can(Capability.BUILD_FIRMWARE):
self._compile_btn.setEnabled(False)
self._compile_btn.setToolTip("Your role cannot build firmware.")
if not self._session.can(Capability.FLASH_FIRMWARE):
self._flash_btn.setEnabled(False)
self._flash_btn.setToolTip("Your role cannot flash firmware.")
# ----- Public --------------------------------------------------------
def refresh_ports(self) -> None:
self._port_combo.clear()
ports = list_serial_ports()
if not ports:
self._port_combo.addItem("(no boards found)", userData=None)
else:
for device, desc in ports:
label = f"{device} -- {desc}" if desc else device
self._port_combo.addItem(label, userData=device)
# ----- Handlers ------------------------------------------------------
def _on_compile(self) -> None:
if not self._session.check(Capability.BUILD_FIRMWARE, target=self._variant()):
QMessageBox.warning(self, "Permission denied",
"Your role cannot build firmware.")
return
self._run_pio(["run", "-e", self._variant()])
def _on_flash(self) -> None:
# Capability gate (logged either way).
if not self._session.check(Capability.FLASH_FIRMWARE,
target=self._port_or_none()):
QMessageBox.warning(self, "Permission denied",
"Your role cannot flash firmware.")
return
port = self._port_or_none()
if port is None:
QMessageBox.warning(self, "No port",
"No serial port selected. Connect a board and "
"click Refresh.")
return
# Dual-auth check: Engineer needs Super Admin PIN.
if self._session.needs_dual_auth(Capability.FLASH_FIRMWARE):
sa_user = _ask_super_admin_pin(self, self._session)
if sa_user is None:
self._session.log_action(
"flash_firmware",
outcome=AuditOutcome.APPROVAL_PENDING,
target=f"{port}:{self._variant()}",
reason="Super Admin approval refused or cancelled",
)
return
self._session.log_dual_auth_grant(
Capability.FLASH_FIRMWARE,
sa_user,
target=f"{port}:{self._variant()}",
extra={"variant": self._variant()},
)
self._run_pio([
"run", "-e", self._variant(), "-t", "upload",
"--upload-port", port,
])
def _on_cancel(self) -> None:
if self._worker is not None:
self._worker.cancel()
self._append_line("[cancelled by operator]")
# ----- pio worker ----------------------------------------------------
def _run_pio(self, args: list[str]) -> None:
pio = _find_pio()
argv = [str(pio), *args]
self._output.clear()
self._append_line(f"$ {' '.join(shlex.quote(a) for a in argv)}")
self._set_running(True)
self._thread = QThread(self)
self._worker = _PioWorker(argv=argv, cwd=FIRMWARE_DIR)
self._worker.moveToThread(self._thread)
self._thread.started.connect(self._worker.run)
self._worker.line.connect(self._append_line)
self._worker.finished_ok.connect(self._on_pio_done)
self._worker.failed.connect(self._on_pio_failed)
self._worker.finished_ok.connect(self._thread.quit)
self._worker.failed.connect(self._thread.quit)
self._thread.finished.connect(self._cleanup_thread)
self._thread.start()
def _on_pio_done(self, code: int) -> None:
self._append_line(f"[pio exit code: {code}]")
outcome = AuditOutcome.SUCCESS if code == 0 else AuditOutcome.FAILED
self._session.log_action(
"flash_firmware_run",
outcome=outcome,
target=self._port_or_none(),
extra={"variant": self._variant(), "exit_code": code},
)
def _on_pio_failed(self, msg: str) -> None:
self._append_line(f"[pio failed: {msg}]")
self._session.log_action(
"flash_firmware_run",
outcome=AuditOutcome.FAILED,
target=self._port_or_none(),
reason=msg,
)
def _cleanup_thread(self) -> None:
self._set_running(False)
if self._thread is not None:
self._thread.deleteLater()
self._thread = None
if self._worker is not None:
self._worker.deleteLater()
self._worker = None
def _set_running(self, running: bool) -> None:
self._compile_btn.setEnabled(
not running and self._session.can(Capability.BUILD_FIRMWARE)
)
self._flash_btn.setEnabled(
not running and self._session.can(Capability.FLASH_FIRMWARE)
)
self._cancel_btn.setEnabled(running)
def _append_line(self, line: str) -> None:
self._output.appendPlainText(line)
def _variant(self) -> str:
return str(self._variant_combo.currentData())
def _port_or_none(self) -> str | None:
v = self._port_combo.currentData()
return None if v is None else str(v)
# ----------------------------------------------------------------------------
# Super Admin PIN approval dialog
# ----------------------------------------------------------------------------
def _ask_super_admin_pin(parent: QWidget, session: Session):
"""Modal dialog asking the SA for their PIN. Returns the SA :class:`User`
on success, ``None`` on cancel / bad PIN."""
dlg = QDialog(parent)
dlg.setWindowTitle("Super Admin approval required")
dlg.setModal(True)
layout = QVBoxLayout(dlg)
layout.addWidget(QLabel(
"Flashing firmware as an Engineer requires Super Admin approval.\n"
"Ask the Super Admin to enter their PIN below."
))
form = QFormLayout()
pin_field = QLineEdit()
pin_field.setEchoMode(QLineEdit.EchoMode.Password)
pin_field.setMaxLength(8)
form.addRow("Super Admin PIN:", pin_field)
layout.addLayout(form)
buttons = QDialogButtonBox(
QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel
)
layout.addWidget(buttons)
result_holder: dict[str, Optional[object]] = {"user": None}
def _accept() -> None:
sa = session.verify_super_admin_pin(pin_field.text())
if sa is None:
QMessageBox.warning(dlg, "Approval failed",
"Incorrect Super Admin PIN.")
pin_field.clear()
pin_field.setFocus()
return
result_holder["user"] = sa
dlg.accept()
buttons.accepted.connect(_accept)
buttons.rejected.connect(dlg.reject)
dlg.exec()
return result_holder["user"]
# ----------------------------------------------------------------------------
# Standalone smoke test
# ----------------------------------------------------------------------------
if __name__ == "__main__": # pragma: no cover -- manual launch helper
from PySide6.QtWidgets import QApplication
from arautopilot.core.audit import AuditLog
from arautopilot.core.user import User
from arautopilot.core.user_store import UserStore
from arautopilot.core.rbac import Role
app = QApplication(sys.argv)
store = UserStore(REPO_ROOT / ".tmp" / "users.json")
if len(store) == 0:
store.add(User.create(display_name="Smoke", role=Role.SUPER_ADMIN, pin="0000"))
sa = next(iter(store.by_role(Role.SUPER_ADMIN)))
audit = AuditLog(REPO_ROOT / ".tmp" / "audit.jsonl")
session = Session(user=sa, store=store, audit=audit)
w = FlashConsoleWidget(session)
w.resize(800, 600)
w.show()
sys.exit(app.exec())