Files
flares/updater.py
T
2026-08-31 23:37:12 -07:00

599 lines
23 KiB
Python

"""
Filename: updater.py
Description: Generic updater file
Note: Compliant with pylance strict type checking
Author: Tyler de Zeeuw
License: GPL-3.0
"""
# Built-in imports
import os
import re
import sys
import time
import shlex
import shutil
import zipfile
import traceback
import subprocess
import configparser
from typing import List, Tuple, Optional, Callable, Any
# External library imports
import psutil
import requests
from PySide6.QtCore import QThread, Signal, QObject
from PySide6.QtWidgets import QMainWindow, QMessageBox
from src.shared.shareddata import get_app_dir
class UpdateDownloadThread(QThread):
"""
Thread that downloads and extracts an update package and emits a signal on completion or error.
Args:
download_url (str): URL of the update zip file to download.
latest_version (str): Version string of the latest update.
"""
update_ready = Signal(str, str)
error_occurred = Signal(str)
def __init__(
self,
download_url: str,
latest_version: str,
platform_name: str,
app_name: str,
) -> None:
super().__init__()
self.download_url = download_url
self.latest_version = latest_version
self.platform_name = platform_name
self.app_name = app_name
def run(self) -> None:
try:
local_filename = os.path.basename(self.download_url)
if self.platform_name == 'darwin':
tmp_dir = f'/tmp/{self.app_name}tempupdate'
os.makedirs(tmp_dir, exist_ok=True)
local_path = os.path.join(tmp_dir, local_filename)
else:
tmp_dir = get_app_dir()
local_path = os.path.join(tmp_dir, local_filename)
# Download the file
with requests.get(self.download_url, stream=True, timeout=15) as r:
r.raise_for_status()
with open(local_path, 'wb') as f:
for chunk in r.iter_content(chunk_size=8192):
if chunk:
f.write(chunk)
# Extract folder name (remove .zip)
if self.platform_name == 'darwin':
extract_folder = os.path.splitext(local_filename)[0]
extract_path = os.path.join(tmp_dir, extract_folder)
else:
extract_folder = os.path.splitext(local_filename)[0]
extract_path = os.path.join(get_app_dir(), extract_folder)
# Create the folder if not exists
os.makedirs(extract_path, exist_ok=True)
# Extract the zip file contents
if self.platform_name == 'darwin':
subprocess.run(['ditto', '-xk', local_path, extract_path], check=True)
else:
with zipfile.ZipFile(local_path, 'r') as zip_ref:
zip_ref.extractall(extract_path)
# Remove the zip once extracted and emit a signal
os.remove(local_path)
self.update_ready.emit(self.latest_version, extract_path)
except Exception as e:
# Emit a signal signifying failure
self.error_occurred.emit(str(e))
class UpdateCheckThread(QThread):
"""
Thread that checks for updates by querying the API and emits a signal based on the result.
Signals:
download_requested(str, str): Emitted with (download_url, latest_version) when an update is available.
no_update_available(): Emitted when no update is found or current version is up to date.
error_occurred(str): Emitted with an error message if the update check fails.
"""
download_requested = Signal(str, str)
no_update_available = Signal()
error_occurred = Signal(str)
def __init__(
self,
api_url: str,
api_url_sec: str,
current_version: str,
platform_name: str,
app_name: str,
) -> None:
super().__init__()
self.api_url = api_url
self.api_url_sec = api_url_sec
self.current_version = current_version
self.platform_name = platform_name
self.app_name = app_name
def run(self) -> None:
try:
latest_version, download_url = self.get_latest_release_for_platform()
if not latest_version:
self.no_update_available.emit()
return
if not download_url:
self.error_occurred.emit(f"No download available for platform '{self.platform_name}'")
return
if self.version_compare(latest_version, self.current_version) > 0:
self.download_requested.emit(download_url, latest_version)
else:
self.no_update_available.emit()
except Exception as e:
self.error_occurred.emit(f"Update check failed: {e}")
def version_compare(self, v1: str, v2: str) -> int:
def normalize(v: str) -> List[int]:
return [int(x) for x in v.split(".")]
return (normalize(v1) > normalize(v2)) - (normalize(v1) < normalize(v2))
def get_latest_release_for_platform(self) -> Tuple[Optional[str], Optional[str]]:
urls = [self.api_url, self.api_url_sec]
for url in urls:
try:
response = requests.get(url, timeout=5)
response.raise_for_status()
releases = response.json()
if not releases:
continue
latest = next((r for r in releases if not r.get("prerelease") and not r.get("draft")), None)
if not latest:
continue
tag = latest["tag_name"].lstrip("v")
for asset in latest.get("assets", []):
if self.platform_name in asset["name"].lower():
return tag, asset["browser_download_url"]
return tag, None
except (requests.RequestException, ValueError, KeyError):
continue
return None, None
class LocalPendingUpdateCheckThread(QThread):
"""
Thread that checks for locally pending updates by scanning the download directory and emits a signal accordingly.
Args:
current_version (str): Current application version.
platform_suffix (str): Platform-specific suffix to identify update folders.
"""
pending_update_found = Signal(str, str)
no_pending_update = Signal()
def __init__(
self,
current_version: str,
platform_suffix: str,
platform_name: str,
app_name: str,
) -> None:
super().__init__()
self.current_version = current_version
self.platform_suffix = platform_suffix
self.platform_name = platform_name
self.app_name = app_name
def version_compare(self, v1: str, v2: str) -> int:
def normalize(v: str) -> List[int]:
return [int(x) for x in v.split(".")]
return (normalize(v1) > normalize(v2)) - (normalize(v1) < normalize(v2))
def run(self) -> None:
if self.platform_name == 'darwin':
cwd = f'/tmp/{self.app_name}tempupdate'
else:
cwd = get_app_dir()
pattern = re.compile(r".*-(\d+\.\d+\.\d+)" + re.escape(self.platform_suffix) + r"$")
found = False
try:
for item in os.listdir(cwd):
folder_path = os.path.join(cwd, item)
if os.path.isdir(folder_path) and item.endswith(self.platform_suffix):
match = pattern.match(item)
if match:
folder_version = match.group(1)
if self.version_compare(folder_version, self.current_version) > 0:
self.pending_update_found.emit(folder_version, folder_path)
found = True
break
except Exception:
pass
if not found:
self.no_pending_update.emit()
class UpdateManager(QObject):
"""
Orchestrates the update process.
Main apps should instantiate this and call check_for_updates().
"""
def __init__(
self,
main_window: QMainWindow,
api_url: str,
api_url_sec: str,
current_version: str,
platform_name: str,
platform_suffix: str,
app_name: str,
) -> None:
super().__init__(main_window)
self.main_window: QMainWindow = main_window
self.api_url = api_url
self.api_url_sec = api_url_sec
self.current_version = current_version
self.platform_name = platform_name
self.platform_suffix = platform_suffix
self.app_name = app_name
self.pending_update_version: Optional[str] = None
self.pending_update_path: Optional[str] = None
def manual_check_for_updates(self) -> None:
self.local_check_thread = LocalPendingUpdateCheckThread(self.current_version, self.platform_suffix, self.platform_name, self.app_name)
self.local_check_thread.pending_update_found.connect(self.on_pending_update_found)
self.local_check_thread.no_pending_update.connect(self.on_no_pending_update)
self.local_check_thread.start()
def on_pending_update_found(self, version: str, folder_path: str) -> None:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage(f"Pending update found: version {version}")
self.pending_update_version = version
self.pending_update_path = folder_path
self.show_pending_update_popup()
def on_no_pending_update(self) -> None:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage("No pending local update found. Checking server...")
self.start_update_check_thread()
def show_pending_update_popup(self) -> None:
msg_box = QMessageBox(self.main_window)
msg_box.setWindowTitle("Pending Update Found")
msg_box.setText(f"A previously downloaded update for {self.app_name.upper()} (version {self.pending_update_version}) is available at:\n{self.pending_update_path}\nWould you like to install it now?")
install_now_button = msg_box.addButton("Install Now", QMessageBox.ButtonRole.AcceptRole)
msg_box.addButton("Install Later", QMessageBox.ButtonRole.RejectRole)
msg_box.exec()
if msg_box.clickedButton() == install_now_button and self.pending_update_path:
self.install_update(self.pending_update_path)
else:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage("Pending update available. Install later.")
self.start_update_check_thread()
def start_update_check_thread(self) -> None:
self.check_thread = UpdateCheckThread(self.api_url, self.api_url_sec, self.current_version, self.platform_name, self.app_name)
self.check_thread.download_requested.connect(self.on_server_update_requested)
self.check_thread.no_update_available.connect(self.on_server_no_update)
self.check_thread.error_occurred.connect(self.on_error)
self.check_thread.start()
def on_server_no_update(self) -> None:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage("No new updates found on server.", 5000)
def on_server_update_requested(self, download_url: str, latest_version: str) -> None:
pending_path = self.pending_update_path
pending_version = self.pending_update_version
if pending_version and pending_path:
cmp = self.version_compare(latest_version, pending_version)
if cmp > 0:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage(f"Newer version {latest_version} available on server. Removing old pending update...")
try:
shutil.rmtree(pending_path)
if self.main_window.statusBar():
self.main_window.statusBar().showMessage(f"Deleted old update folder: {pending_path}")
except Exception as e:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage(f"Failed to delete old update folder: {e}")
# Clear pending update info so new download proceeds
self.pending_update_version = None
self.pending_update_path = None
# Download the new update
self.download_update(download_url, latest_version)
elif cmp == 0:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage(f"Pending update version {self.pending_update_version} is already latest. No download needed.")
else:
# Server version older than pending? Unlikely but just keep pending update
self.main_window.statusBar().showMessage(f"Pending update version {self.pending_update_version} is newer than server version. No action.")
else:
# No pending update, just download
self.download_update(download_url, latest_version)
def download_update(self, download_url: str, latest_version: str) -> None:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage("Downloading update...")
self.download_thread = UpdateDownloadThread(download_url, latest_version, self.platform_name, self.app_name)
self.download_thread.update_ready.connect(self.on_update_ready)
self.download_thread.error_occurred.connect(self.on_error)
self.download_thread.start()
def on_update_ready(self, latest_version: str, extract_folder: str) -> None:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage("Update downloaded and extracted.")
msg_box = QMessageBox(self.main_window)
msg_box.setWindowTitle("Update Ready")
msg_box.setText(f"Version {latest_version} has been downloaded and extracted to:\n{extract_folder}\nWould you like to install it now?")
install_now_button = msg_box.addButton("Install Now", QMessageBox.ButtonRole.AcceptRole)
msg_box.addButton("Install Later", QMessageBox.ButtonRole.RejectRole)
msg_box.exec()
if msg_box.clickedButton() == install_now_button:
self.install_update(extract_folder)
else:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage("Update ready. Install later.")
def install_update(self, extract_folder: str) -> None:
base_dir = get_app_dir()
# Path to updater executable
if self.platform_name == 'windows':
updater_path = os.path.join(base_dir, f"{self.app_name}_updater.exe")
elif self.platform_name == 'darwin':
if getattr(sys, 'frozen', False):
updater_path = os.path.join(base_dir, f"../../../{self.app_name}_updater.app")
else:
updater_path = os.path.join(base_dir, f"../{self.app_name}_updater.app")
elif self.platform_name == 'linux':
updater_path = os.path.join(base_dir, f"{self.app_name}_updater")
else:
updater_path = base_dir
updater_path = os.path.abspath(updater_path)
if not os.path.exists(updater_path):
QMessageBox.critical(self.main_window, "Error", f"Updater not found at:\n{updater_path}. The absolute path was {os.path.abspath(updater_path)}")
return
# Launch updater with extracted folder path as argument
try:
main_app_executable = sys.executable if getattr(sys, 'frozen', False) else os.path.abspath(sys.argv[0])
print(f'Launching updater with: "{updater_path}" "{extract_folder}" "{main_app_executable}"')
if self.platform_name == 'darwin':
subprocess.Popen(['open', updater_path, '--args', extract_folder, main_app_executable])
else:
subprocess.Popen([updater_path, f'{extract_folder}', f'{main_app_executable}'], cwd=os.path.dirname(updater_path))
# Close the current app so updater can replace files
sys.exit(0)
except Exception as e:
QMessageBox.critical(self.main_window, "Error", f"[Updater Launch Failed]\n{str(e)}\n{traceback.format_exc()}")
def on_error(self, message: str) -> None:
if self.main_window.statusBar():
self.main_window.statusBar().showMessage(f"Error occurred during update process. {message}")
def version_compare(self, v1: str, v2: str) -> int:
def normalize(v: str) -> List[int]:
return [int(x) for x in v.split(".")]
return (normalize(v1) > normalize(v2)) - (normalize(v1) < normalize(v2))
def wait_for_process_to_exit(process_name: str, timeout: int = 10) -> bool:
"""
Waits for a process with the specified name to exit within a timeout period.
Args:
process_name (str): Name (or part of the name) of the process to wait for.
timeout (int, optional): Maximum time to wait in seconds. Defaults to 10.
Returns:
bool: True if the process exited before the timeout, False otherwise.
"""
print(f"Waiting for {process_name} to exit...")
deadline = time.time() + timeout
while time.time() < deadline:
still_running = False
for proc in psutil.process_iter(['name']):
try:
if proc.info['name'] and process_name.lower() in proc.info['name'].lower():
still_running = True
print(f"Still running: {proc.info['name']} (PID: {proc.pid})")
break
except (psutil.NoSuchProcess, psutil.AccessDenied):
continue
if not still_running:
print(f"{process_name} has exited.")
return True
time.sleep(0.5)
print(f"{process_name} did not exit in time.")
return False
def _remove_readonly(func: Callable[[str], Any], path: str, exc: Any) -> None:
"""Error handler for shutil.rmtree to clear read-only files on Windows."""
import stat
os.chmod(path, stat.S_IWRITE)
func(path)
def finish_update_if_needed(platform_name: str, app_name: str, cfg_path: str, finish_update: bool) -> None:
"""
Completes a pending application update if '--finish-update' is present in the command-line arguments.
"""
if not finish_update:
return
print("Finishing update...")
# 1. Reset welcome dialog config flag
update_cfg = configparser.ConfigParser()
try:
if os.path.exists(cfg_path):
update_cfg.read(cfg_path)
if not update_cfg.has_section("Options"):
update_cfg.add_section("Options")
update_cfg.set("Options", "show_welcome_dialog", "true")
with open(cfg_path, "w") as f:
update_cfg.write(f)
print("Welcome dialog flag successfully reset to 'true' for next run.")
except Exception as e:
print(f"Warning: Could not update welcome dialog preference flag: {e}")
app_dir = f'/tmp/{app_name}tempupdate' if platform_name == 'darwin' else get_app_dir()
if not os.path.exists(app_dir):
print(f"App directory does not exist: {app_dir}. Skipping cleanup.")
return
# 2. Find update folder(s)
update_folders: List[str] = []
try:
for entry in os.listdir(app_dir):
entry_path = os.path.join(app_dir, entry)
if os.path.isdir(entry_path) and entry.startswith(f"{app_name}-") and entry.endswith("-" + platform_name):
update_folders.append(entry_path)
except Exception as e:
print(f"Error scanning app directory for update folders: {e}")
if not update_folders:
print("No update folder found. Skipping update steps.")
return
primary_update_folder = update_folders[0]
target_updater_folder = os.path.join(primary_update_folder, f"{app_name}-darwin") if platform_name == 'darwin' else primary_update_folder
# 3. Wait for updater process to exit
print(f"Waiting for {app_name}_updater to exit...")
updater_bin_name = f"{app_name}_updater"
for proc in psutil.process_iter(['pid', 'name']):
try:
if proc.info['name'] and updater_bin_name.lower() in proc.info['name'].lower():
proc.wait(timeout=5)
except (psutil.NoSuchProcess, psutil.AccessDenied):
pass
except psutil.TimeoutExpired:
print(f"Force killing lingering {app_name}_updater")
try:
proc.kill()
except Exception:
pass
# 4. Replace the updater executable
target_base = get_app_dir()
if platform_name == 'windows':
new_updater = os.path.join(target_updater_folder, f"{app_name}_updater.exe")
dest_updater = os.path.join(target_base, f"{app_name}_updater.exe")
elif platform_name == 'darwin':
new_updater = os.path.join(target_updater_folder, f"{app_name}_updater.app")
dest_updater = os.path.abspath(os.path.join(sys.executable, f"../../../../{app_name}_updater.app"))
elif platform_name == 'linux':
new_updater = os.path.join(target_updater_folder, f"{app_name}_updater")
dest_updater = os.path.join(target_base, f"{app_name}_updater")
else:
new_updater = target_base
dest_updater = target_base
if os.path.exists(new_updater):
try:
if os.path.exists(dest_updater):
if platform_name == 'darwin' and os.path.isdir(dest_updater):
shutil.rmtree(dest_updater, onexc=_remove_readonly)
else:
os.remove(dest_updater)
if platform_name == 'darwin':
wait_for_process_to_exit(f"{app_name}_updater", timeout=10)
subprocess.check_call(["ditto", new_updater, dest_updater])
else:
shutil.copy2(new_updater, dest_updater)
if platform_name in ('linux', 'darwin'):
os.chmod(dest_updater, 0o755)
if platform_name == 'darwin':
remove_quarantine(dest_updater, app_name)
print(f"{app_name}_updater replaced successfully.")
except Exception as e:
print(f"Failed to replace {app_name}_updater: {e}")
# 5. Clean up all temporary update folders (with retries for Windows file locks)
for folder in update_folders:
for attempt in range(3):
try:
if os.path.exists(folder):
shutil.rmtree(folder, onexc=_remove_readonly)
print(f"Successfully deleted update folder: {folder}")
break
except Exception as e:
if attempt < 2:
time.sleep(1.0)
else:
print(f"Failed to delete update folder '{folder}' after 3 attempts: {e}")
if "--finish-update" in sys.argv:
sys.argv.remove("--finish-update")
def remove_quarantine(app_path: str, app_name: str) -> None:
"""
Removes the macOS quarantine attribute from the specified application path.
"""
script = f'''
do shell script "xattr -d -r com.apple.quarantine {shlex.quote(app_path)}" with administrator privileges with prompt "{app_name.upper()} needs privileges to finish the update. (2/2)"
'''
try:
subprocess.run(['osascript', '-e', script], check=True)
print("✅ Quarantine attribute removed.")
except subprocess.CalledProcessError as e:
print("❌ Failed to remove quarantine attribute.")
print(e)