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# @Base: Miro - an RSS based video player application
# Copyright (C) 2017
# Jesus E.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# In addition, as a special exception, the copyright holders give
# permission to link the code of portions of this program with the OpenSSL
# library.
#
# You must obey the GNU General Public License in all respects for all of
# the code used other than OpenSSL. If you modify file(s) with this
# exception, you may extend this exception to your version of the file(s),
# but you are not obligated to do so. If you do not wish to do so, delete
# this exception statement from your version. If you delete this exception
# statement from all source files in the program, then also delete it here.
"""Autoupdate functionality """
import ctypes
import _winreg as winreg
import logging
winsparkle = ctypes.cdll.WinSparkle
APPCAST_URL = 'http://miro-updates.participatoryculture.org/lvc-appcast.xml'
def startup():
enable_automatic_checks()
winsparkle.win_sparkle_set_appcast_url(APPCAST_URL)
winsparkle.win_sparkle_init()
def shutdown():
winsparkle.win_sparkle_cleanup()
def enable_automatic_checks():
# We should be able to use win_sparkle_set_automatic_check_for_updates,
# but that's only available after version 0.4 and the current release
# version is 0.4
with open_winsparkle_key() as winsparkle_key:
if not check_for_updates_set(winsparkle_key):
set_default_check_for_updates(winsparkle_key)
def open_winsparkle_key():
"""Open the MVC WinSparkle registry key
If any components are not created yet, we will try to create them
"""
with open_or_create_key(winreg.HKEY_CURRENT_USER, "Software") as software:
with open_or_create_key(software,
"Participatory Culture Foundation") as pcf:
with open_or_create_key(pcf, "Libre Video Converter") as lvc:
return open_or_create_key(lvc, "WinSparkle",
write_access=True)
def open_or_create_key(key, subkey, write_access=False):
if write_access:
sam = winreg.KEY_READ | winreg.KEY_WRITE
else:
sam = winreg.KEY_READ
try:
return winreg.OpenKey(key, subkey, 0, sam)
except OSError as e:
if e.errno == 2:
# Not Found error. We should create the key
return winreg.CreateKey(key, subkey)
else:
raise
def check_for_updates_set(winsparkle_key):
try:
winreg.QueryValueEx(winsparkle_key, "CheckForUpdates")
except OSError as e:
if e.errno == 2:
# not found error.
return False
else:
raise
else:
return True
def set_default_check_for_updates(winsparkle_key):
"""Initialize the WinSparkle regstry values with our defaults.
:param lvc_key winreg.HKey object for to the MVC registry
"""
logging.info("Writing WinSparkle keys")
winreg.SetValueEx(winsparkle_key, "CheckForUpdates", 0, winreg.REG_SZ, "1")
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