furtka/furtka/scanner.py
Daniel Maksymilian Syrnicki ff68dd5ae6 fix(furtka): audit follow-ups — placeholder secrets, isolate reconcile, .env perms
Addresses the four issues raised in the slice-3 audit before pushing.

#1 (critical) — refuse to finish install when .env still contains
placeholder secrets like "changeme". Without this, `furtka app install
fileshare` would happily start an SMB server with a publicly-known
password — the kind of default that ends up screenshotted on Hacker
News. PLACEHOLDER_SECRETS lives in installer.py; new tests cover
placeholder rejection, post-edit retry, and quoted values.

#3 — reconciler now catches DockerError / FileNotFoundError / OSError
per-app instead of letting a single broken app abort the whole
boot-scan. Errors get surfaced as Action(kind="error", …) and
has_errors() drives the CLI exit code so systemd still shows red,
but the other apps actually got reconciled.

#4 — chmod 0600 on .env after install so app secrets aren't world-
readable on multi-user boxes. Done before the placeholder check so
even the half-installed state is safe.

#5 — load_manifest() got an optional expected_name. The scanner
passes the folder name (filesystem source-of-truth contract);
installer leaves it None so `furtka app install /tmp/some-fork/`
works regardless of what the source folder is named.

#2 — TODO comment on dperson/samba:latest. Switching to a digest
needs a verified upstream release; left for the test-day pin.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-15 10:17:00 +02:00

35 lines
1 KiB
Python

from dataclasses import dataclass
from pathlib import Path
from furtka.manifest import Manifest, ManifestError, load_manifest
@dataclass(frozen=True)
class ScanResult:
path: Path
manifest: Manifest | None
error: str | None
@property
def ok(self) -> bool:
return self.manifest is not None
def scan(apps_root: Path) -> list[ScanResult]:
if not apps_root.exists():
return []
out: list[ScanResult] = []
for entry in sorted(apps_root.iterdir()):
if not entry.is_dir():
continue
manifest_path = entry / "manifest.json"
if not manifest_path.exists():
out.append(ScanResult(path=entry, manifest=None, error="manifest.json missing"))
continue
try:
m = load_manifest(manifest_path, expected_name=entry.name)
except ManifestError as e:
out.append(ScanResult(path=entry, manifest=None, error=str(e)))
continue
out.append(ScanResult(path=entry, manifest=m, error=None))
return out