430 lines
15 KiB
Python
430 lines
15 KiB
Python
# Copyright (C) 2007, Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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"""Sugar activity bundles
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UNSTABLE.
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"""
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from ConfigParser import ConfigParser, ParsingError
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from locale import normalize
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import os
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import shutil
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import tempfile
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import logging
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from sugar3 import env
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from sugar3.bundle.bundle import Bundle, \
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MalformedBundleException, NotInstalledException
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from sugar3.bundle.bundleversion import NormalizedVersion
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from sugar3.bundle.bundleversion import InvalidVersionError
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_bundle_instances = {}
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def _expand_lang(locale):
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# Private method from gettext.py
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locale = normalize(locale)
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COMPONENT_CODESET = 1 << 0
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COMPONENT_TERRITORY = 1 << 1
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COMPONENT_MODIFIER = 1 << 2
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# split up the locale into its base components
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mask = 0
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pos = locale.find('@')
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if pos >= 0:
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modifier = locale[pos:]
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locale = locale[:pos]
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mask |= COMPONENT_MODIFIER
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else:
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modifier = ''
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pos = locale.find('.')
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if pos >= 0:
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codeset = locale[pos:]
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locale = locale[:pos]
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mask |= COMPONENT_CODESET
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else:
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codeset = ''
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pos = locale.find('_')
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if pos >= 0:
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territory = locale[pos:]
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locale = locale[:pos]
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mask |= COMPONENT_TERRITORY
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else:
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territory = ''
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language = locale
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ret = []
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for i in range(mask + 1):
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if not (i & ~mask): # if all components for this combo exist ...
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val = language
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if i & COMPONENT_TERRITORY:
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val += territory
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if i & COMPONENT_CODESET:
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val += codeset
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if i & COMPONENT_MODIFIER:
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val += modifier
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ret.append(val)
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ret.reverse()
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return ret
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class ActivityBundle(Bundle):
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"""A Sugar activity bundle
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See http://wiki.sugarlabs.org/go/Development_Team/Almanac/Activity_Bundles
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for details
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"""
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MIME_TYPE = 'application/vnd.olpc-sugar'
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_zipped_extension = '.xo'
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_unzipped_extension = '.activity'
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_infodir = 'activity'
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def __init__(self, path, translated=True):
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Bundle.__init__(self, path)
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self.activity_class = None
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self.bundle_exec = None
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self._name = None
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self._icon = None
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self._bundle_id = None
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self._mime_types = None
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self._show_launcher = True
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self._tags = None
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self._activity_version = '0'
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self._summary = None
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self._single_instance = False
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self._max_participants = 0
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info_file = self.get_file('activity/activity.info')
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if info_file is None:
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raise MalformedBundleException('No activity.info file')
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self._parse_info(info_file)
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if translated:
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linfo_file = self._get_linfo_file()
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if linfo_file:
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self._parse_linfo(linfo_file)
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_bundle_instances[path] = self
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def _parse_info(self, info_file):
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cp = ConfigParser()
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cp.readfp(info_file)
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section = 'Activity'
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if cp.has_option(section, 'bundle_id'):
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self._bundle_id = cp.get(section, 'bundle_id')
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else:
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if cp.has_option(section, 'service_name'):
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self._bundle_id = cp.get(section, 'service_name')
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logging.error('ATTENTION: service_name property in the '
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'activity.info file is deprecated, should be '
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' changed to bundle_id')
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else:
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raise MalformedBundleException(
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'Activity bundle %s does not specify a bundle id' %
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self._path)
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if ' ' in self._bundle_id:
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raise MalformedBundleException('Space in bundle_id')
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if cp.has_option(section, 'name'):
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self._name = cp.get(section, 'name')
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else:
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raise MalformedBundleException(
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'Activity bundle %s does not specify a name' % self._path)
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if cp.has_option(section, 'exec'):
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self.bundle_exec = cp.get(section, 'exec')
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else:
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raise MalformedBundleException(
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'Activity bundle %s must specify either class or exec' %
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self._path)
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if cp.has_option(section, 'mime_types'):
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mime_list = cp.get(section, 'mime_types').strip(';')
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self._mime_types = [mime.strip() for mime in mime_list.split(';')]
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if cp.has_option(section, 'show_launcher'):
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if cp.get(section, 'show_launcher') == 'no':
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self._show_launcher = False
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if cp.has_option(section, 'tags'):
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tag_list = cp.get(section, 'tags').strip(';')
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self._tags = [tag.strip() for tag in tag_list.split(';')]
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if cp.has_option(section, 'icon'):
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self._icon = cp.get(section, 'icon')
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if cp.has_option(section, 'activity_version'):
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version = cp.get(section, 'activity_version')
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try:
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NormalizedVersion(version)
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except InvalidVersionError:
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raise MalformedBundleException(
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'Activity bundle %s has invalid version number %s' %
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(self._path, version))
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self._activity_version = version
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if cp.has_option(section, 'summary'):
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self._summary = cp.get(section, 'summary')
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if cp.has_option(section, 'single_instance'):
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if cp.get(section, 'single_instance') == 'yes':
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self._single_instance = True
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if cp.has_option(section, 'max_participants'):
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max_participants = cp.get(section, 'max_participants')
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try:
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self._max_participants = int(max_participants)
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except ValueError:
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raise MalformedBundleException(
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'Activity bundle %s has invalid max_participants %s' %
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(self._path, max_participants))
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def _get_linfo_file(self):
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# Using method from gettext.py, first find languages from environ
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languages = []
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for envar in ('LANGUAGE', 'LC_ALL', 'LC_MESSAGES', 'LANG'):
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val = os.environ.get(envar)
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if val:
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languages = val.split(':')
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break
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# Next, normalize and expand the languages
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nelangs = []
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for lang in languages:
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for nelang in _expand_lang(lang):
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if nelang not in nelangs:
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nelangs.append(nelang)
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# Finally, select a language
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for lang in nelangs:
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linfo_path = os.path.join('locale', lang, 'activity.linfo')
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linfo_file = self.get_file(linfo_path)
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if linfo_file is not None:
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return linfo_file
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return None
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def _parse_linfo(self, linfo_file):
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cp = ConfigParser()
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try:
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cp.readfp(linfo_file)
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section = 'Activity'
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if cp.has_option(section, 'name'):
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self._name = cp.get(section, 'name')
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if cp.has_option(section, 'summary'):
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self._summary = cp.get(section, 'summary')
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if cp.has_option(section, 'tags'):
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tag_list = cp.get(section, 'tags').strip(';')
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self._tags = [tag.strip() for tag in tag_list.split(';')]
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except ParsingError as e:
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logging.exception('Exception reading linfo file: %s', e)
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def get_locale_path(self):
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"""Get the locale path inside the (installed) activity bundle."""
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if self._zip_file is not None:
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raise NotInstalledException
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return os.path.join(self._path, 'locale')
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def get_icons_path(self):
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"""Get the icons path inside the (installed) activity bundle."""
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if self._zip_file is not None:
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raise NotInstalledException
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return os.path.join(self._path, 'icons')
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def get_name(self):
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"""Get the activity user-visible name."""
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return self._name
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def get_bundle_id(self):
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"""Get the activity bundle id"""
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return self._bundle_id
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def get_icon(self):
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"""Get the activity icon name"""
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# FIXME: this should return the icon data, not a filename, so that
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# we don't need to create a temp file in the zip case
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icon_path = os.path.join('activity', self._icon + '.svg')
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if self._zip_file is None:
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return os.path.join(self._path, icon_path)
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else:
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icon_data = self.get_file(icon_path).read()
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temp_file, temp_file_path = tempfile.mkstemp(prefix=self._icon,
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suffix='.svg')
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os.write(temp_file, icon_data)
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os.close(temp_file)
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return temp_file_path
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def get_activity_version(self):
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"""Get the activity version"""
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return self._activity_version
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def get_command(self):
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"""Get the command to execute to launch the activity factory"""
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if self.bundle_exec:
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command = os.path.expandvars(self.bundle_exec)
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else:
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command = 'sugar-activity ' + self.activity_class
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return command
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def get_mime_types(self):
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"""Get the MIME types supported by the activity"""
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return self._mime_types
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def get_tags(self):
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"""Get the tags that describe the activity"""
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return self._tags
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def get_summary(self):
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"""Get the summary that describe the activity"""
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return self._summary
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def get_single_instance(self):
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"""Get whether there should be a single instance for the activity"""
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return self._single_instance
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def get_max_participants(self):
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"""Get maximum number of participants in share"""
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return self._max_participants
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def get_show_launcher(self):
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"""Get whether there should be a visible launcher for the activity"""
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return self._show_launcher
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def install(self):
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install_dir = env.get_user_activities_path()
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self._unzip(install_dir)
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install_path = os.path.join(install_dir, self._zip_root_dir)
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self.install_mime_type(install_path)
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return install_path
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def install_mime_type(self, install_path):
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""" Update the mime type database and install the mime type icon
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"""
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xdg_data_home = os.getenv('XDG_DATA_HOME',
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os.path.expanduser('~/.local/share'))
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mime_path = os.path.join(install_path, 'activity', 'mimetypes.xml')
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if os.path.isfile(mime_path):
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mime_dir = os.path.join(xdg_data_home, 'mime')
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mime_pkg_dir = os.path.join(mime_dir, 'packages')
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if not os.path.isdir(mime_pkg_dir):
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os.makedirs(mime_pkg_dir)
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installed_mime_path = os.path.join(mime_pkg_dir,
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'%s.xml' % self._bundle_id)
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self._symlink(mime_path, installed_mime_path)
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os.spawnlp(os.P_WAIT, 'update-mime-database',
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'update-mime-database', mime_dir)
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mime_types = self.get_mime_types()
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if mime_types is not None:
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installed_icons_dir = \
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os.path.join(xdg_data_home,
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'icons/sugar/scalable/mimetypes')
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if not os.path.isdir(installed_icons_dir):
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os.makedirs(installed_icons_dir)
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for mime_type in mime_types:
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mime_icon_base = os.path.join(install_path, 'activity',
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mime_type.replace('/', '-'))
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svg_file = mime_icon_base + '.svg'
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info_file = mime_icon_base + '.icon'
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self._symlink(svg_file,
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os.path.join(installed_icons_dir,
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os.path.basename(svg_file)))
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self._symlink(info_file,
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os.path.join(installed_icons_dir,
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os.path.basename(info_file)))
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def _symlink(self, src, dst):
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if not os.path.isfile(src):
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return
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if not os.path.islink(dst) and os.path.exists(dst):
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raise RuntimeError('Do not remove %s if it was not '
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'installed by sugar' % dst)
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logging.debug('Link resource %s to %s' % (src, dst))
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if os.path.lexists(dst):
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logging.debug('Relink %s', dst)
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os.unlink(dst)
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os.symlink(src, dst)
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def uninstall(self, force=False, delete_profile=False):
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install_path = self.get_path()
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if os.path.islink(install_path):
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# Don't remove the actual activity dir if it's a symbolic link
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# because we may be removing user data.
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os.unlink(install_path)
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return
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xdg_data_home = os.getenv('XDG_DATA_HOME',
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os.path.expanduser('~/.local/share'))
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mime_dir = os.path.join(xdg_data_home, 'mime')
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installed_mime_path = os.path.join(mime_dir, 'packages',
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'%s.xml' % self._bundle_id)
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if os.path.exists(installed_mime_path):
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os.remove(installed_mime_path)
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os.spawnlp(os.P_WAIT, 'update-mime-database',
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'update-mime-database', mime_dir)
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mime_types = self.get_mime_types()
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if mime_types is not None:
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installed_icons_dir = \
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os.path.join(xdg_data_home,
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'icons/sugar/scalable/mimetypes')
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if os.path.isdir(installed_icons_dir):
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for f in os.listdir(installed_icons_dir):
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path = os.path.join(installed_icons_dir, f)
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if os.path.islink(path) and \
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os.readlink(path).startswith(install_path):
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os.remove(path)
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if delete_profile:
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bundle_profile_path = env.get_profile_path(self._bundle_id)
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if os.path.exists(bundle_profile_path):
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os.chmod(bundle_profile_path, 0775)
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shutil.rmtree(bundle_profile_path, ignore_errors=True)
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self._uninstall(install_path)
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def is_user_activity(self):
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return self.get_path().startswith(env.get_user_activities_path())
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def get_bundle_instance(path, translated=True):
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global _bundle_instances
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if path not in _bundle_instances:
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_bundle_instances[path] = ActivityBundle(path, translated=translated)
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return _bundle_instances[path]
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