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import re
from pathlib import Path
from typing import Callable, Literal
from apscheduler.schedulers.background import BackgroundScheduler
from apscheduler.triggers.cron import CronTrigger
import pickle
from .scanner_profile import ScannerProfile
SeverityLevel = Literal["information", "warning", "error"]
VALID_NAME_REGEX = r"^[a-zA-Z0-9_-]+$"
class ScannerProfilesManager:
def __init__(self, profiles_file: str, scheduler: BackgroundScheduler):
self.profiles_file = Path(profiles_file)
self.scheduler = scheduler
self.profiles: list[ScannerProfile] = []
self.on_message: Callable[[str, str, str], None] | None = None
self.on_refresh: Callable[[], None] | None = None
self.load_profiles()
def _notify(self, msg: str, title: str = "Profile Manager", level: SeverityLevel = "information"):
if self.on_message:
self.on_message(msg, title, level)
def _refresh_front(self):
if self.on_refresh:
self.on_refresh()
def _fail(self, msg: str, level: SeverityLevel = "error", notify: bool = True) -> bool:
if notify:
self._notify(msg, level=level)
return False
def _ok(self, msg: str | None = None, level: SeverityLevel = "information", notify: bool = True) -> bool:
if msg and notify:
self._notify(msg, level=level)
return True
def try_save_profiles(self, notify: bool = True) -> bool:
try:
self.profiles_file.parent.mkdir(parents=True, exist_ok=True)
with open(self.profiles_file, "wb") as f:
pickle.dump(self.profiles, f)
return self._ok("Profiles saved successfully.", notify=notify)
except Exception as e:
return self._fail(f"Error saving profiles: {e}", notify=notify)
def load_profiles(self, notify: bool = True) -> bool:
if not self.profiles_file.exists():
if notify:
self._notify("Profiles file not found. Creating a new one.", level="warning")
if not self.try_save_profiles(notify=False):
return self._fail("Failed to create profiles file!", notify=notify)
return self._ok("New profiles file created.", notify=notify)
try:
with open(self.profiles_file, "rb") as f:
self.profiles = pickle.load(f)
self._refresh_front()
return self._ok(f"Loaded {len(self.profiles)} profiles.", notify=notify)
except Exception as e:
return self._fail(f"Error loading profiles: {e}", notify=notify)
def add_profile(self, profile_name: str, notify: bool = True) -> bool:
if not profile_name:
return self._fail("Name can't be blank.", "error", notify)
if not re.match(VALID_NAME_REGEX, profile_name):
return self._fail(f"Bad input '{profile_name}'. Use only letters, numbers, '_' and '-'.", "error", notify)
if any(p.profile_name == profile_name for p in self.profiles):
return self._fail(f"Profile {profile_name} already exists.", "warning", notify)
new_profile = ScannerProfile(profile_name=profile_name)
self.profiles.append(new_profile)
if not self.try_save_profiles(notify=False):
self.profiles.remove(new_profile)
return self._fail(f"Failed to save profile {profile_name}.", notify=notify)
self._refresh_front()
return self._ok(f"Added profile {profile_name}.", notify=notify)
def delete_profile(self, profile_name: str, notify: bool = True) -> bool:
before = len(self.profiles)
self.profiles = [p for p in self.profiles if p.profile_name != profile_name]
if len(self.profiles) == before:
return self._fail(f"Profile {profile_name} not found.", "warning", notify)
if not self.try_save_profiles(notify=False):
return self._fail(f"Failed to save changes after deleting {profile_name}.", notify=notify)
self._refresh_front()
return self._ok(f"Deleted profile {profile_name}.", notify=notify)
def get_profile(self, profile_name: str) -> ScannerProfile | None:
return next((p for p in self.profiles if p.profile_name == profile_name), None)
def update_profile(self, profile_name: str, field: str, value, notify: bool = True) -> bool:
p = self.get_profile(profile_name)
if not p:
return self._fail(f"Profile {profile_name} does not exist.", notify=notify)
setattr(p, field, value)
if self.try_save_profiles(notify=False):
return self._ok(f"Updated profile {profile_name}.", notify=notify)
else:
return self._fail(f"Failed to save updated profile {profile_name}.", notify=notify)
def run_profile_once(self, profile_name: str, notify: bool = True) -> bool:
p = self.get_profile(profile_name)
if not p:
return self._fail(f"Profile {profile_name} not found.", notify=notify)
try:
p.scan()
return self._ok(f"Scan completed for {profile_name}.", notify=notify)
except Exception as e:
return self._fail(f"Scan error: {e}", notify=notify)
def turn_on_profile(self, profile_name: str, notify: bool = True) -> bool:
p = self.get_profile(profile_name)
if not p:
return self._fail(f"Profile {profile_name} not found.", notify=notify)
try:
job_id = f"profile_{p.profile_name}"
self.scheduler.add_job(
lambda: self.run_profile_once(p.profile_name, notify=False),
trigger=CronTrigger.from_crontab(p.scheduler),
id=job_id,
replace_existing=True
)
p.is_active = True
return self._ok(f"Profile {profile_name} activated.", notify=notify)
except Exception as e:
return self._fail(f"Error activating profile: {e}", notify=notify)
def turn_off_profile(self, profile_name: str, notify: bool = True) -> bool:
job_id = f"profile_{profile_name}"
try:
self.scheduler.remove_job(job_id)
p = self.get_profile(profile_name)
if p:
p.is_active = False
return self._ok(f"Profile {profile_name} deactivated.", notify=notify)
except Exception as e:
return self._fail(f"Error deactivating profile: {e}", notify=notify)
def set_validated_scheduler(self, profile_name: str, cron_str: str, notify: bool = True) -> bool:
p = self.get_profile(profile_name)
if not p:
return self._fail(f"Profile {profile_name} not found.", notify=notify)
try:
CronTrigger.from_crontab(cron_str)
p.scheduler = cron_str
if not self.try_save_profiles(notify=False):
return self._fail(f"Failed to save scheduler for {profile_name}.", notify=notify)
return self._ok(f"Scheduler updated for {profile_name}.", notify=notify)
except ValueError as ve:
return self._fail(f"Invalid CRON: {ve}", notify=notify)
except Exception as e:
return self._fail(f"Unexpected error: {e}", notify=notify)
def get_profile_logs(self, profile_name: str, notify: bool = True):
p = self.get_profile(profile_name)
if not p:
self._fail(f"Profile {profile_name} not found.", "error", notify)
return None
return p.get_logs()
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