src/gpodder/__init__.py

   1 # -*- coding: utf-8 -*-
   2 #
   3 # gPodder - A media aggregator and podcast client
   4 # Copyright (c) 2005-2012 Thomas Perl and the gPodder Team
   5 #
   6 # gPodder is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # gPodder is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19
  20 __author__    = 'Thomas Perl <thp@gpodder.org>'
  21 __version__   = '3.0.4'
  22 __date__      = '2012-01-24'
  23 __relname__   = 'Weekend Vampire'
  24 __copyright__ = '© 2005-2012 Thomas Perl and the gPodder Team'
  25 __license__   = 'GNU General Public License, version 3 or later'
  26 __url__       = 'http://gpodder.org/'
  27
  28 __version_info__ = tuple(int(x) for x in __version__.split('.'))
  29
  30 import os
  31 import sys
  32 import platform
  33 import gettext
  34 import locale
  35
  36 # Check if real hard dependencies are available
  37 try:
  38     import feedparser
  39 except ImportError:
  40     print """
  41   Error: Module "feedparser" (python-feedparser) not found.
  42          The feedparser module can be downloaded from
  43          http://code.google.com/p/feedparser/
  44 """
  45     sys.exit(1)
  46 del feedparser
  47
  48 try:
  49     import mygpoclient
  50 except ImportError:
  51     print """
  52   Error: Module "mygpoclient" (python-mygpoclient) not found.
  53          The mygpoclient module can be downloaded from
  54          http://thp.io/2010/mygpoclient/
  55 """
  56     sys.exit(1)
  57 del mygpoclient
  58
  59 try:
  60     import sqlite3
  61 except ImportError:
  62     print """
  63   Error: Module "sqlite3" not found.
  64          Build Python with SQLite 3 support or get it from
  65          http://code.google.com/p/pysqlite/
  66 """
  67     sys.exit(1)
  68 del sqlite3
  69
  70
  71 # The User-Agent string for downloads
  72 user_agent = 'gPodder/%s (+%s)' % (__version__, __url__)
  73
  74 # Are we running in GUI, Maemo or console mode?
  75 class UI(object):
  76     def __init__(self):
  77         self.desktop = False
  78         self.fremantle = False
  79         self.harmattan = False
  80         self.gtk = False
  81         self.qml = False
  82         self.cli = False
  83
  84
  85 ui = UI()
  86
  87 # D-Bus specific interface names
  88 dbus_bus_name = 'org.gpodder'
  89 dbus_gui_object_path = '/gui'
  90 dbus_podcasts_object_path = '/podcasts'
  91 dbus_interface = 'org.gpodder.interface'
  92 dbus_podcasts = 'org.gpodder.podcasts'
  93 dbus_session_bus = None
  94
  95 # Set "win32" to True if we are on Windows
  96 win32 = (platform.system() == 'Windows')
  97 # Set "osx" to True if we are on Mac OS X
  98 osx = (platform.system() == 'Darwin')
  99
 100 # i18n setup (will result in "gettext" to be available)
 101 # Use   _ = gpodder.gettext   in modules to enable string translations
 102 textdomain = 'gpodder'
 103 locale_dir = gettext.bindtextdomain(textdomain)
 104 t = gettext.translation(textdomain, locale_dir, fallback=True)
 105
 106 try:
 107     # Python 2
 108     gettext = t.ugettext
 109     ngettext = t.ungettext
 110 except AttributeError:
 111     # Python 3
 112     gettext = t.gettext
 113     ngettext = t.ngettext
 114
 115 if win32:
 116     try:
 117         # Workaround for bug 650
 118         from gtk.glade import bindtextdomain
 119         bindtextdomain(textdomain, locale_dir)
 120         del bindtextdomain
 121     except:
 122         # Ignore for QML UI or missing glade module
 123         pass
 124 del t
 125
 126 # Set up textdomain for gtk.Builder (this accesses the C library functions)
 127 if hasattr(locale, 'bindtextdomain'):
 128     locale.bindtextdomain(textdomain, locale_dir)
 129
 130 del locale_dir
 131
 132 # Set up socket timeouts to fix bug 174
 133 SOCKET_TIMEOUT = 60
 134 import socket
 135 socket.setdefaulttimeout(SOCKET_TIMEOUT)
 136 del socket
 137 del SOCKET_TIMEOUT
 138
 139 # Variables reserved for GUI-specific use (will be set accordingly)
 140 ui_folders = []
 141 credits_file = None
 142 icon_file = None
 143 images_folder = None
 144 user_extensions = None
 145
 146 # Episode states used in the database
 147 STATE_NORMAL, STATE_DOWNLOADED, STATE_DELETED = range(3)
 148
 149 # Paths (gPodder's home folder, config, db and download folder)
 150 home = None
 151 config_file = None
 152 database_file = None
 153 downloads = None
 154
 155 # Function to set a new gPodder home folder
 156 def set_home(new_home):
 157     global home, config_file, database_file, downloads
 158     home = os.path.abspath(new_home)
 159
 160     config_file = os.path.join(home, 'Settings.json')
 161     database_file = os.path.join(home, 'Database')
 162     downloads = os.path.join(home, 'Downloads')
 163
 164 # Default locations for configuration and data files
 165 default_home = os.path.expanduser(os.path.join('~', 'gPodder'))
 166 set_home(os.environ.get('GPODDER_HOME', default_home))
 167
 168 if home != default_home:
 169     print >>sys.stderr, 'Storing data in', home, '(GPODDER_HOME is set)'
 170
 171 # Plugins to load by default
 172 DEFAULT_PLUGINS = [
 173     'gpodder.plugins.soundcloud',
 174     'gpodder.plugins.xspf',
 175 ]
 176
 177 def load_plugins():
 178     """Load (non-essential) plugin modules
 179
 180     This loads a default set of plugins, but you can use
 181     the environment variable "GPODDER_PLUGINS" to modify
 182     the list of plugins."""
 183     PLUGINS = os.environ.get('GPODDER_PLUGINS', None)
 184     if PLUGINS is None:
 185         PLUGINS = DEFAULT_PLUGINS
 186     else:
 187         PLUGINS = PLUGINS.split()
 188     for plugin in PLUGINS:
 189         try:
 190             __import__(plugin)
 191         except Exception, e:
 192             print >>sys.stderr, 'Cannot load plugin: %s (%s)' % (plugin, e)
 193
 194
 195 def detect_platform():
 196     global ui
 197
 198     try:
 199         ui.fremantle = ('Maemo 5' in open('/etc/issue').read())
 200         if ui.fremantle:
 201             print >>sys.stderr, 'Detected platform: Maemo 5 (Fremantle)'
 202     except Exception, e:
 203         ui.fremantle = False
 204
 205     try:
 206         ui.harmattan = ('MeeGo 1.2 Harmattan' in open('/etc/issue').read())
 207     except Exception, e:
 208         ui.harmattan = False
 209
 210     ui.fremantle = ui.fremantle or ui.harmattan
 211     ui.desktop = not ui.fremantle and not ui.harmattan
 212
 213     if ui.fremantle and 'GPODDER_HOME' not in os.environ:
 214         new_home = os.path.expanduser(os.path.join('~', 'MyDocs', 'gPodder'))
 215         set_home(os.path.expanduser(new_home))
 216