# Copyright (C) 2010 Canonical # # Authors: # Gary Lasker # Michael Vogt # # 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; version 3. # # 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 Street, Fifth Floor, Boston, MA 02110-1301 USA import os import logging import xapian import softwarecenter.paths from gi.repository import GObject from aptsources.sourceslist import SourceEntry, SourcesList from softwarecenter.backend import get_install_backend from softwarecenter.backend.channel import (ChannelsManager, SoftwareChannel) from softwarecenter.distro import get_distro from softwarecenter.utils import human_readable_name_from_ppa_uri from softwarecenter.enums import (ViewPages, AVAILABLE_FOR_PURCHASE_MAGIC_CHANNEL_NAME, ) LOG = logging.getLogger(__name__) class AptChannelsManager(ChannelsManager): def __init__(self, db): self.db = db self.distro = get_distro() self.backend = get_install_backend() self.backend.connect("channels-changed", self._remove_no_longer_needed_extra_channels) # kick off a background check for changes that may have been made # in the channels list GObject.timeout_add_seconds(60, self._check_for_channel_updates_timer) # extra channels from e.g. external sources self.extra_channels = [] self._logger = LOG # external API @property def channels(self): """ return a list of SoftwareChannel objects in display order according to: Distribution, Partners, PPAs alphabetically, Other channels alphabetically, Unknown channel last """ return self._get_channels() @property def channels_installed_only(self): """ return a list of SoftwareChannel objects displaying installed packages only in display order according to: Distribution, Partners, PPAs alphabetically, Other channels alphabetically, Unknown channel last """ return self._get_channels(installed_only=True) def feed_in_private_sources_list_entries(self, entries): added = False for entry in entries: added |= self._feed_in_private_sources_list_entry(entry) if added: self.backend.emit("channels-changed", True) def add_channel(self, name, icon, query): """ create a channel with the name, icon and query specified and append it to the set of channels return the new channel object """ # print name, icon, query channel = SoftwareChannel(name, None, None, channel_icon=icon, channel_query=query) self.extra_channels.append(channel) self.backend.emit("channels-changed", True) if channel.installed_only: channel._channel_view_id = ViewPages.INSTALLED else: channel._channel_view_id = ViewPages.AVAILABLE return channel @staticmethod def channel_available(channelname): import apt_pkg p = os.path.join(apt_pkg.config.find_dir("Dir::Etc::sourceparts"), "%s.list" % channelname) return os.path.exists(p) # internal def _feed_in_private_sources_list_entry(self, source_entry): """ this feeds in a private sources.list entry that is available to the user (like a private PPA) that may or may not be active """ # FIXME: strip out password and use apt/auth.conf potential_new_entry = SourceEntry(source_entry) # look if we have it sources = SourcesList() for source in sources.list: if source == potential_new_entry: return False # need to add it as a not yet enabled channel name = human_readable_name_from_ppa_uri(potential_new_entry.uri) # FIXME: use something better than uri as name private_channel = SoftwareChannel(name, None, None, source_entry=source_entry) private_channel.needs_adding = True if private_channel in self.extra_channels: return False # add it self.extra_channels.append(private_channel) return True def _remove_no_longer_needed_extra_channels(self, backend, res): """ go over the extra channels and remove no longer needed ones""" removed = False for channel in self.extra_channels: if not channel._source_entry: continue sources = SourcesList() for source in sources.list: if source == SourceEntry(channel._source_entry): self.extra_channels.remove(channel) removed = True if removed: self.backend.emit("channels-changed", True) def _check_for_channel_updates_timer(self): """ run a background timer to see if the a-x-i data we have is still fresh or if the cache has changed since """ # this is expensive and does not need UI to we shove it out channel_update = os.path.join( softwarecenter.paths.datadir, "update-software-center-channels") (pid, stdin, stdout, stderr) = GObject.spawn_async( [channel_update], flags=GObject.SPAWN_DO_NOT_REAP_CHILD) GObject.child_watch_add( pid, self._on_check_for_channel_updates_finished) def _on_check_for_channel_updates_finished(self, pid, condition): # exit status of 1 means stuff changed if os.WEXITSTATUS(condition) == 1: self.db.reopen() def _get_channels(self, installed_only=False): """ (internal) implements 'channels()' and 'channels_installed_only()' properties """ distro_channel_name = self.distro.get_distro_channel_name() # gather the set of software channels and order them other_channel_list = [] cached_origins = [] for channel_iter in self.db.xapiandb.allterms("XOL"): if len(channel_iter.term) == 3: continue channel_name = channel_iter.term[3:] channel_origin = "" # get origin information for this channel m = self.db.xapiandb.postlist_begin(channel_iter.term) doc = self.db.xapiandb.get_document(m.get_docid()) for term_iter in doc.termlist(): if (term_iter.term.startswith("XOO") and len(term_iter.term) > 3): channel_origin = term_iter.term[3:] break self._logger.debug("channel_name: %s" % channel_name) self._logger.debug("channel_origin: %s" % channel_origin) if channel_origin not in cached_origins: other_channel_list.append((channel_name, channel_origin)) cached_origins.append(channel_origin) dist_channel = None partner_channel = None for_purchase_channel = None new_apps_channel = None ppa_channels = [] other_channels = [] unknown_channel = [] local_channel = None for (channel_name, channel_origin) in other_channel_list: if not channel_name: unknown_channel.append(SoftwareChannel(channel_name, channel_origin, None, installed_only=installed_only)) elif channel_name == distro_channel_name: dist_channel = (SoftwareChannel(distro_channel_name, channel_origin, None, installed_only=installed_only)) elif channel_name == "Partner archive": partner_channel = SoftwareChannel(channel_name, channel_origin, "partner", installed_only=installed_only) elif channel_name == "notdownloadable": if installed_only: local_channel = SoftwareChannel(channel_name, None, None, installed_only=installed_only) elif (channel_origin and channel_origin.startswith("LP-PPA-commercial-ppa-uploaders")): # do not display commercial private PPAs, they will all be # displayed in the "for-purchase" node anyway pass elif channel_origin and channel_origin.startswith("LP-PPA"): if channel_origin == "LP-PPA-app-review-board": new_apps_channel = SoftwareChannel(channel_name, channel_origin, None, installed_only=installed_only) else: ppa_channels.append(SoftwareChannel(channel_name, channel_origin, None, installed_only=installed_only)) # TODO: detect generic repository source (e.g., Google, Inc.) else: other_channels.append(SoftwareChannel(channel_name, channel_origin, None, installed_only=installed_only)) # always display the partner channel, even if its source is not enabled if not partner_channel and distro_channel_name == "Ubuntu": partner_channel = SoftwareChannel("Partner archive", "Canonical", "partner", installed_only=installed_only) # create a "magic" channel to display items available for purchase for_purchase_query = xapian.Query("AH" + AVAILABLE_FOR_PURCHASE_MAGIC_CHANNEL_NAME) for_purchase_channel = SoftwareChannel("For Purchase", "software-center-agent", None, channel_icon=None, # FIXME: need an icon channel_query=for_purchase_query, installed_only=installed_only) # set them in order channels = [] if dist_channel is not None: channels.append(dist_channel) if partner_channel is not None: channels.append(partner_channel) if get_distro().PURCHASE_APP_URL: channels.append(for_purchase_channel) if new_apps_channel is not None: channels.append(new_apps_channel) channels.extend(ppa_channels) channels.extend(other_channels) channels.extend(unknown_channel) channels.extend(self.extra_channels) if local_channel is not None: channels.append(local_channel) for channel in channels: if installed_only: channel._channel_view_id = ViewPages.INSTALLED else: channel._channel_view_id = ViewPages.AVAILABLE return channels