139 lines
5.9 KiB
Python
139 lines
5.9 KiB
Python
# DistUpgradeFetcher.py
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# -*- Mode: Python; indent-tabs-mode: nil; tab-width: 4; coding: utf-8 -*-
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#
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# Copyright (c) 2006 Canonical
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#
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# Author: Michael Vogt <michael.vogt@ubuntu.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at your option) any later version.
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#
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# This program 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
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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# USA
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import gi
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gi.require_version("Gtk", "3.0")
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from gi.repository import Gtk, Gdk
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from .ReleaseNotesViewer import ReleaseNotesViewer
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from .utils import error
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from .DistUpgradeFetcherCore import DistUpgradeFetcherCore
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from .SimpleGtk3builderApp import SimpleGtkbuilderApp
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from gettext import gettext as _
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from urllib.request import urlopen
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from urllib.error import HTTPError
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import os
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import socket
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class DistUpgradeFetcherGtk(DistUpgradeFetcherCore):
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def __init__(self, new_dist, progress, parent, datadir):
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DistUpgradeFetcherCore.__init__(self, new_dist, progress)
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uifile = os.path.join(datadir, "gtkbuilder", "ReleaseNotes.ui")
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self.widgets = SimpleGtkbuilderApp(uifile, "ubuntu-release-upgrader")
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self.window_main = parent
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def error(self, summary, message):
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return error(self.window_main, summary, message)
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def runDistUpgrader(self):
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os.execv(self.script, [self.script] + self.run_options)
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def showReleaseNotes(self):
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# first try showing the webkit version, this may fail (return None
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# because e.g. there is no webkit installed)
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res = self._try_show_release_notes_webkit()
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if res is not None:
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return res
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else:
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# fallback to text
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return self._try_show_release_notes_textview()
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def _try_show_release_notes_webkit(self):
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if self.new_dist.releaseNotesHtmlUri is not None:
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try:
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from .ReleaseNotesViewerWebkit import ReleaseNotesViewerWebkit
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webkit_release_notes = ReleaseNotesViewerWebkit(
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self.new_dist.releaseNotesHtmlUri)
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webkit_release_notes.show()
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self.widgets.scrolled_notes.add(webkit_release_notes)
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res = self.widgets.dialog_release_notes.run()
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self.widgets.dialog_release_notes.hide()
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if res == Gtk.ResponseType.OK:
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return True
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return False
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except ImportError:
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pass
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return None
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def _try_show_release_notes_textview(self):
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# FIXME: care about i18n! (append -$lang or something)
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if self.new_dist.releaseNotesURI is not None:
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uri = self._expandUri(self.new_dist.releaseNotesURI)
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if self.window_main:
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self.window_main.set_sensitive(False)
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self.window_main.get_window().set_cursor(
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Gdk.Cursor.new(Gdk.CursorType.WATCH))
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while Gtk.events_pending():
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Gtk.main_iteration()
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# download/display the release notes
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# FIXME: add some progress reporting here
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res = Gtk.ResponseType.CANCEL
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timeout = socket.getdefaulttimeout()
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try:
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socket.setdefaulttimeout(5)
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release_notes = urlopen(uri)
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notes = release_notes.read().decode("UTF-8", "replace")
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textview_release_notes = ReleaseNotesViewer(notes)
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textview_release_notes.show()
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self.widgets.scrolled_notes.add(textview_release_notes)
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release_widget = self.widgets.dialog_release_notes
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release_widget.set_transient_for(self.window_main)
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res = self.widgets.dialog_release_notes.run()
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self.widgets.dialog_release_notes.hide()
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except HTTPError:
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primary = "<span weight=\"bold\" size=\"larger\">%s</span>" % \
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_("Could not find the release notes")
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secondary = _("The server may be overloaded. ")
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dialog = Gtk.MessageDialog(self.window_main,
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Gtk.DialogFlags.MODAL,
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Gtk.MessageType.ERROR,
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Gtk.ButtonsType.CLOSE, "")
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dialog.set_title("")
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dialog.set_markup(primary)
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dialog.format_secondary_text(secondary)
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dialog.run()
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dialog.destroy()
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except IOError:
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primary = "<span weight=\"bold\" size=\"larger\">%s</span>" % \
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_("Could not download the release notes")
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secondary = _("Please check your internet connection.")
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dialog = Gtk.MessageDialog(self.window_main,
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Gtk.DialogFlags.MODAL,
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Gtk.MessageType.ERROR,
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Gtk.ButtonsType.CLOSE, "")
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dialog.set_title("")
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dialog.set_markup(primary)
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dialog.format_secondary_text(secondary)
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dialog.run()
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dialog.destroy()
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socket.setdefaulttimeout(timeout)
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if self.window_main:
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self.window_main.set_sensitive(True)
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self.window_main.get_window().set_cursor(None)
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# user clicked cancel
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if res == Gtk.ResponseType.OK:
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return True
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return False
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