forked from openlp/openlp
594 lines
22 KiB
Python
594 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2014 Raoul Snyman #
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# Portions copyright (c) 2008-2014 Tim Bentley, Gerald Britton, Jonathan #
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# Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub, #
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# Meinert Jordan, Armin Köhler, Erik Lundin, Edwin Lunando, Brian T. Meyer. #
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# Joshua Miller, Stevan Pettit, Andreas Preikschat, Mattias Põldaru, #
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# Christian Richter, Philip Ridout, Simon Scudder, Jeffrey Smith, #
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# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Dave Warnock, #
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# Frode Woldsund, Martin Zibricky #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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"""
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The :mod:`openlp.core.utils` module provides the utility libraries for OpenLP.
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"""
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from datetime import datetime
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from distutils.version import LooseVersion
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import logging
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import os
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import re
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from subprocess import Popen, PIPE
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import sys
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import urllib2
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import urlparse
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from random import randint
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from openlp.core.lib.settings import Settings
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from PyQt4 import QtGui, QtCore
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if sys.platform != u'win32' and sys.platform != u'darwin':
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try:
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from xdg import BaseDirectory
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XDG_BASE_AVAILABLE = True
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except ImportError:
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XDG_BASE_AVAILABLE = False
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import openlp
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from openlp.core.lib import Receiver, translate, check_directory_exists
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log = logging.getLogger(__name__)
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APPLICATION_VERSION = {}
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IMAGES_FILTER = None
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UNO_CONNECTION_TYPE = u'pipe'
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#UNO_CONNECTION_TYPE = u'socket'
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CONTROL_CHARS = re.compile(r'[\x00-\x1F\x7F-\x9F]', re.UNICODE)
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INVALID_FILE_CHARS = re.compile(r'[\\/:\*\?"<>\|\+\[\]%]', re.UNICODE)
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USER_AGENTS = {
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u'win32': [
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'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36',
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'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36',
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'Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.71 Safari/537.36'
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],
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u'darwin': [
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'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_3) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.43 Safari/537.31',
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'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11',
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'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11'
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],
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u'linux2': [
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'Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.22 (KHTML, like Gecko) Ubuntu Chromium/25.0.1364.160 Chrome/25.0.1364.160 Safari/537.22',
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'Mozilla/5.0 (X11; CrOS armv7l 2913.260.0) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.99 Safari/537.11',
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'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.27 (KHTML, like Gecko) Chrome/26.0.1389.0 Safari/537.27'
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],
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u'default': [
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'Mozilla/5.0 (X11; NetBSD amd64; rv:18.0) Gecko/20130120 Firefox/18.0'
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]
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}
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class VersionThread(QtCore.QThread):
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"""
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A special Qt thread class to fetch the version of OpenLP from the website.
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This is threaded so that it doesn't affect the loading time of OpenLP.
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"""
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def __init__(self, parent):
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QtCore.QThread.__init__(self, parent)
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def run(self):
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"""
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Run the thread.
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"""
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self.sleep(1)
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app_version = get_application_version()
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version = check_latest_version(app_version)
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if LooseVersion(str(version)) > LooseVersion(str(app_version[u'full'])):
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Receiver.send_message(u'openlp_version_check', u'%s' % version)
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class AppLocation(object):
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"""
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The :class:`AppLocation` class is a static class which retrieves a
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directory based on the directory type.
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"""
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AppDir = 1
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ConfigDir = 2
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DataDir = 3
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PluginsDir = 4
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VersionDir = 5
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CacheDir = 6
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LanguageDir = 7
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# Base path where data/config/cache dir is located
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BaseDir = None
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@staticmethod
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def get_directory(dir_type=1):
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"""
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Return the appropriate directory according to the directory type.
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``dir_type``
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The directory type you want, for instance the data directory.
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"""
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if dir_type == AppLocation.AppDir:
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return _get_frozen_path(
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os.path.abspath(os.path.split(sys.argv[0])[0]),
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os.path.split(openlp.__file__)[0])
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elif dir_type == AppLocation.PluginsDir:
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app_path = os.path.abspath(os.path.split(sys.argv[0])[0])
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return _get_frozen_path(os.path.join(app_path, u'plugins'),
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os.path.join(os.path.split(openlp.__file__)[0], u'plugins'))
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elif dir_type == AppLocation.VersionDir:
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return _get_frozen_path(
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os.path.abspath(os.path.split(sys.argv[0])[0]),
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os.path.split(openlp.__file__)[0])
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elif dir_type == AppLocation.LanguageDir:
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app_path = _get_frozen_path(
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os.path.abspath(os.path.split(sys.argv[0])[0]),
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_get_os_dir_path(dir_type))
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return os.path.join(app_path, u'i18n')
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elif dir_type == AppLocation.DataDir and AppLocation.BaseDir:
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return os.path.join(AppLocation.BaseDir, 'data')
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else:
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return _get_os_dir_path(dir_type)
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@staticmethod
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def get_data_path():
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"""
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Return the path OpenLP stores all its data under.
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"""
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# Check if we have a different data location.
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if Settings().contains(u'advanced/data path'):
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path = unicode(Settings().value(
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u'advanced/data path').toString())
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else:
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path = AppLocation.get_directory(AppLocation.DataDir)
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check_directory_exists(path)
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return os.path.normpath(path)
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@staticmethod
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def get_section_data_path(section):
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"""
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Return the path a particular module stores its data under.
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"""
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data_path = AppLocation.get_data_path()
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path = os.path.join(data_path, section)
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check_directory_exists(path)
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return path
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def _get_os_dir_path(dir_type):
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"""
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Return a path based on which OS and environment we are running in.
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"""
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encoding = sys.getfilesystemencoding()
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if sys.platform == u'win32':
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if dir_type == AppLocation.DataDir:
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return os.path.join(unicode(os.getenv(u'APPDATA'), encoding),
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u'openlp', u'data')
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elif dir_type == AppLocation.LanguageDir:
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return os.path.split(openlp.__file__)[0]
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return os.path.join(unicode(os.getenv(u'APPDATA'), encoding),
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u'openlp')
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elif sys.platform == u'darwin':
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if dir_type == AppLocation.DataDir:
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return os.path.join(unicode(os.getenv(u'HOME'), encoding),
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u'Library', u'Application Support', u'openlp', u'Data')
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elif dir_type == AppLocation.LanguageDir:
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return os.path.split(openlp.__file__)[0]
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return os.path.join(unicode(os.getenv(u'HOME'), encoding),
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u'Library', u'Application Support', u'openlp')
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else:
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if dir_type == AppLocation.LanguageDir:
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prefixes = [u'/usr/local', u'/usr']
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for prefix in prefixes:
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directory = os.path.join(prefix, u'share', u'openlp')
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if os.path.exists(directory):
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return directory
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return os.path.join(u'/usr', u'share', u'openlp')
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if XDG_BASE_AVAILABLE:
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if dir_type == AppLocation.ConfigDir:
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return os.path.join(unicode(BaseDirectory.xdg_config_home,
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encoding), u'openlp')
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elif dir_type == AppLocation.DataDir:
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return os.path.join(
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unicode(BaseDirectory.xdg_data_home, encoding), u'openlp')
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elif dir_type == AppLocation.CacheDir:
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return os.path.join(unicode(BaseDirectory.xdg_cache_home,
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encoding), u'openlp')
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if dir_type == AppLocation.DataDir:
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return os.path.join(unicode(os.getenv(u'HOME'), encoding),
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u'.openlp', u'data')
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return os.path.join(unicode(os.getenv(u'HOME'), encoding), u'.openlp')
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def _get_frozen_path(frozen_option, non_frozen_option):
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"""
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Return a path based on the system status.
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"""
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if hasattr(sys, u'frozen') and sys.frozen == 1:
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return frozen_option
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return non_frozen_option
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def get_application_version():
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"""
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Returns the application version of the running instance of OpenLP::
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{u'full': u'1.9.4-bzr1249', u'version': u'1.9.4', u'build': u'bzr1249'}
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"""
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global APPLICATION_VERSION
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if APPLICATION_VERSION:
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return APPLICATION_VERSION
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if u'--dev-version' in sys.argv or u'-d' in sys.argv:
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# If we're running the dev version, let's use bzr to get the version.
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try:
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# If bzrlib is available, use it.
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from bzrlib.branch import Branch
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b = Branch.open_containing('.')[0]
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b.lock_read()
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try:
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# Get the branch's latest revision number.
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revno = b.revno()
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# Convert said revision number into a bzr revision id.
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revision_id = b.dotted_revno_to_revision_id((revno,))
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# Get a dict of tags, with the revision id as the key.
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tags = b.tags.get_reverse_tag_dict()
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# Check if the latest
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if revision_id in tags:
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full_version = u'%s' % tags[revision_id][0]
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else:
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full_version = '%s-bzr%s' % \
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(sorted(b.tags.get_tag_dict().keys())[-1], revno)
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finally:
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b.unlock()
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except:
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# Otherwise run the command line bzr client.
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bzr = Popen((u'bzr', u'tags', u'--sort', u'time'), stdout=PIPE)
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output, error = bzr.communicate()
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code = bzr.wait()
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if code != 0:
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raise Exception(u'Error running bzr tags')
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lines = output.splitlines()
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if not lines:
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tag = u'0.0.0'
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revision = u'0'
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else:
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tag, revision = lines[-1].split()
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bzr = Popen((u'bzr', u'log', u'--line', u'-r', u'-1'), stdout=PIPE)
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output, error = bzr.communicate()
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code = bzr.wait()
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if code != 0:
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raise Exception(u'Error running bzr log')
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latest = output.split(u':')[0]
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full_version = latest == revision and tag or \
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u'%s-bzr%s' % (tag, latest)
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else:
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# We're not running the development version, let's use the file.
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filepath = AppLocation.get_directory(AppLocation.VersionDir)
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filepath = os.path.join(filepath, u'.version')
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fversion = None
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try:
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fversion = open(filepath, u'r')
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full_version = unicode(fversion.read()).rstrip()
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except IOError:
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log.exception('Error in version file.')
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full_version = u'0.0.0-bzr000'
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finally:
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if fversion:
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fversion.close()
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bits = full_version.split(u'-')
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APPLICATION_VERSION = {
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u'full': full_version,
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u'version': bits[0],
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u'build': bits[1] if len(bits) > 1 else None
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}
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if APPLICATION_VERSION[u'build']:
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log.info(u'Openlp version %s build %s',
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APPLICATION_VERSION[u'version'], APPLICATION_VERSION[u'build'])
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else:
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log.info(u'Openlp version %s' % APPLICATION_VERSION[u'version'])
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return APPLICATION_VERSION
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def check_latest_version(current_version):
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"""
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Check the latest version of OpenLP against the version file on the OpenLP
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site.
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``current_version``
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The current version of OpenLP.
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"""
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version_string = current_version[u'full']
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# set to prod in the distribution config file.
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settings = Settings()
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settings.beginGroup(u'general')
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last_test = unicode(settings.value(u'last version test',
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QtCore.QVariant(datetime.now().date())).toString())
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this_test = unicode(datetime.now().date())
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settings.setValue(u'last version test', QtCore.QVariant(this_test))
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settings.endGroup()
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if last_test != this_test:
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if current_version[u'build']:
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req = urllib2.Request(
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u'http://www.openlp.org/files/dev_version.txt')
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else:
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req = urllib2.Request(u'http://www.openlp.org/files/version.txt')
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req.add_header(u'User-Agent', u'OpenLP/%s' % current_version[u'full'])
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remote_version = None
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try:
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remote_version = unicode(urllib2.urlopen(req, None).read()).strip()
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except IOError:
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log.exception(u'Failed to download the latest OpenLP version file')
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if remote_version:
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version_string = remote_version
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return version_string
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def add_actions(target, actions):
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"""
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Adds multiple actions to a menu or toolbar in one command.
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``target``
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The menu or toolbar to add actions to.
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``actions``
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The actions to be added. An action consisting of the keyword ``None``
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will result in a separator being inserted into the target.
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"""
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for action in actions:
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if action is None:
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target.addSeparator()
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else:
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target.addAction(action)
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def get_filesystem_encoding():
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"""
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Returns the name of the encoding used to convert Unicode filenames into
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system file names.
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"""
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encoding = sys.getfilesystemencoding()
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if encoding is None:
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encoding = sys.getdefaultencoding()
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return encoding
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def get_images_filter():
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"""
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Returns a filter string for a file dialog containing all the supported
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image formats.
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"""
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global IMAGES_FILTER
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if not IMAGES_FILTER:
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log.debug(u'Generating images filter.')
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formats = [unicode(fmt)
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for fmt in QtGui.QImageReader.supportedImageFormats()]
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visible_formats = u'(*.%s)' % u'; *.'.join(formats)
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actual_formats = u'(*.%s)' % u' *.'.join(formats)
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IMAGES_FILTER = u'%s %s %s' % (translate('OpenLP', 'Image Files'),
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visible_formats, actual_formats)
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return IMAGES_FILTER
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def is_not_image_file(file_name):
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"""
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Validate that the file is not an image file.
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``file_name``
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File name to be checked.
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"""
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if not file_name:
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return True
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formats = [unicode(fmt).lower()
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for fmt in QtGui.QImageReader.supportedImageFormats()]
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file_part, file_extension = os.path.splitext(unicode(file_name))
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if file_extension[1:].lower() in formats and os.path.exists(file_name):
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return False
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return True
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def join_url(base, *args):
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"""
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Join one or more url components with the base url.
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``base``
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Base url containing top level domain.
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e.g. http://www.example.org
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``args``
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url components to be appended to the base url.
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"""
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# Remove leading and trailing slash from components.
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# Also ensure QString is converted to unicode().
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args = [unicode(x).strip('/') for x in args]
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return urlparse.urljoin(base, '/'.join(args))
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def split_filename(path):
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"""
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Return a list of the parts in a given path.
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"""
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path = os.path.abspath(path)
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if not os.path.isfile(path):
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return path, u''
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else:
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return os.path.split(path)
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def clean_filename(filename):
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"""
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Removes invalid characters from the given ``filename``.
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``filename``
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The "dirty" file name to clean.
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"""
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if not isinstance(filename, unicode):
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filename = unicode(filename, u'utf-8')
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return INVALID_FILE_CHARS.sub(u'_', CONTROL_CHARS.sub(u'', filename))
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def delete_file(file_path_name):
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"""
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Deletes a file from the system.
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``file_path_name``
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The file, including path, to delete.
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"""
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if not file_path_name:
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return False
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try:
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if os.path.exists(file_path_name):
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os.remove(file_path_name)
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return True
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except (IOError, OSError):
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log.exception("Unable to delete file %s" % file_path_name)
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return False
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def _get_user_agent():
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"""
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Return a user agent customised for the platform the user is on.
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"""
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browser_list = USER_AGENTS.get(sys.platform, None)
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if not browser_list:
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browser_list = USER_AGENTS[u'default']
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|
random_index = randint(0, len(browser_list) - 1)
|
|
return browser_list[random_index]
|
|
|
|
|
|
def get_web_page(url, header=None, update_openlp=False):
|
|
"""
|
|
Attempts to download the webpage at url and returns that page or None.
|
|
|
|
``url``
|
|
The URL to be downloaded.
|
|
|
|
``header``
|
|
An optional HTTP header to pass in the request to the web server.
|
|
|
|
``update_openlp``
|
|
Tells OpenLP to update itself if the page is successfully downloaded.
|
|
Defaults to False.
|
|
"""
|
|
# TODO: Add proxy usage. Get proxy info from OpenLP settings, add to a
|
|
# proxy_handler, build into an opener and install the opener into urllib2.
|
|
# http://docs.python.org/library/urllib2.html
|
|
if not url:
|
|
return None
|
|
req = urllib2.Request(url)
|
|
if not header or header[0].lower() != u'user-agent':
|
|
user_agent = _get_user_agent()
|
|
req.add_header('User-Agent', str(user_agent))
|
|
elif header:
|
|
req.add_header(str(header[0]), str(header[1]))
|
|
page = None
|
|
log.debug(u'Downloading URL = %s' % url)
|
|
try:
|
|
page = urllib2.urlopen(req)
|
|
downloaded_url = page.geturl()
|
|
# Sometimes we get redirected, in this case page.geturl is encoded in utf-8
|
|
if not isinstance(downloaded_url, unicode):
|
|
downloaded_url = downloaded_url.decode('utf-8')
|
|
log.debug(u'Downloaded URL = %s' % downloaded_url)
|
|
except urllib2.URLError:
|
|
log.exception(u'The web page could not be downloaded')
|
|
if not page:
|
|
return None
|
|
if update_openlp:
|
|
Receiver.send_message(u'openlp_process_events')
|
|
log.debug(page)
|
|
return page
|
|
|
|
|
|
def get_uno_command():
|
|
"""
|
|
Returns the UNO command to launch an openoffice.org instance.
|
|
"""
|
|
COMMAND = u'soffice'
|
|
OPTIONS = u'-nologo -norestore -minimized -nodefault -nofirststartwizard'
|
|
if UNO_CONNECTION_TYPE == u'pipe':
|
|
CONNECTION = u'"-accept=pipe,name=openlp_pipe;urp;"'
|
|
else:
|
|
CONNECTION = u'"-accept=socket,host=localhost,port=2002;urp;"'
|
|
return u'%s %s %s' % (COMMAND, OPTIONS, CONNECTION)
|
|
|
|
|
|
def get_uno_instance(resolver):
|
|
"""
|
|
Returns a running openoffice.org instance.
|
|
|
|
``resolver``
|
|
The UNO resolver to use to find a running instance.
|
|
"""
|
|
log.debug(u'get UNO Desktop Openoffice - resolve')
|
|
if UNO_CONNECTION_TYPE == u'pipe':
|
|
return resolver.resolve(u'uno:pipe,name=openlp_pipe;' \
|
|
+ u'urp;StarOffice.ComponentContext')
|
|
else:
|
|
return resolver.resolve(u'uno:socket,host=localhost,port=2002;' \
|
|
+ u'urp;StarOffice.ComponentContext')
|
|
|
|
|
|
def format_time(text, local_time):
|
|
"""
|
|
Workaround for Python built-in time formatting fuction time.strftime().
|
|
|
|
time.strftime() accepts only ascii characters. This function accepts
|
|
unicode string and passes individual % placeholders to time.strftime().
|
|
This ensures only ascii characters are passed to time.strftime().
|
|
|
|
``text``
|
|
The text to be processed.
|
|
``local_time``
|
|
The time to be used to add to the string. This is a time object
|
|
"""
|
|
def match_formatting(match):
|
|
return local_time.strftime(match.group())
|
|
return re.sub('\%[a-zA-Z]', match_formatting, text)
|
|
|
|
|
|
def locale_compare(string1, string2):
|
|
"""
|
|
Compares two strings according to the current locale settings.
|
|
|
|
As any other compare function, returns a negative, or a positive value,
|
|
or 0, depending on whether string1 collates before or after string2 or
|
|
is equal to it. Comparison is case insensitive.
|
|
"""
|
|
# Function locale.strcol() from standard Python library does not work
|
|
# properly on Windows and probably somewhere else.
|
|
return QtCore.QString.localeAwareCompare(string1.lower(), string2.lower())
|
|
|
|
|
|
# For performance reasons provide direct reference to compare function
|
|
# without wrapping it in another function making te string lowercase.
|
|
# This is needed for sorting songs.
|
|
locale_direct_compare = QtCore.QString.localeAwareCompare
|
|
|
|
|
|
from languagemanager import LanguageManager
|
|
from actions import ActionList
|
|
|
|
__all__ = [u'AppLocation', u'get_application_version', u'check_latest_version',
|
|
u'add_actions', u'get_filesystem_encoding', u'LanguageManager',
|
|
u'ActionList', u'get_web_page', u'get_uno_command', u'get_uno_instance',
|
|
u'delete_file', u'clean_filename', u'format_time', u'locale_compare',
|
|
u'locale_direct_compare']
|