/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py is in python3-distupgrade 1:16.04.12.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | # DistUpgradeFetcher.py
# -*- Mode: Python; indent-tabs-mode: nil; tab-width: 4; coding: utf-8 -*-
#
# Copyright (c) 2006 Canonical
#
# Author: Michael Vogt <michael.vogt@ubuntu.com>
#
# 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; either version 2 of the
# License, or (at your option) any later version.
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
from gi.repository import Gtk, Gdk
from .ReleaseNotesViewer import ReleaseNotesViewer
from .utils import error
from .DistUpgradeFetcherCore import DistUpgradeFetcherCore
from .SimpleGtk3builderApp import SimpleGtkbuilderApp
from gettext import gettext as _
from urllib.request import urlopen
from urllib.error import HTTPError
import os
import socket
class DistUpgradeFetcherGtk(DistUpgradeFetcherCore):
def __init__(self, new_dist, progress, parent, datadir):
DistUpgradeFetcherCore.__init__(self, new_dist, progress)
uifile = os.path.join(datadir, "gtkbuilder", "ReleaseNotes.ui")
self.widgets = SimpleGtkbuilderApp(uifile, "ubuntu-release-upgrader")
self.window_main = parent
def error(self, summary, message):
return error(self.window_main, summary, message)
def runDistUpgrader(self):
# now run it as root
if os.getuid() != 0:
os.execv("/usr/bin/gksu",
["gksu",
"--desktop",
"/usr/share/applications/update-manager.desktop",
"--",
self.script] + self.run_options)
else:
os.execv(self.script, [self.script] + self.run_options)
def showReleaseNotes(self):
# first try showing the webkit version, this may fail (return None
# because e.g. there is no webkit installed)
res = self._try_show_release_notes_webkit()
if res is not None:
return res
else:
# fallback to text
return self._try_show_release_notes_textview()
def _try_show_release_notes_webkit(self):
if self.new_dist.releaseNotesHtmlUri is not None:
try:
from .ReleaseNotesViewerWebkit import ReleaseNotesViewerWebkit
webkit_release_notes = ReleaseNotesViewerWebkit(
self.new_dist.releaseNotesHtmlUri)
webkit_release_notes.show()
self.widgets.scrolled_notes.add(webkit_release_notes)
res = self.widgets.dialog_release_notes.run()
self.widgets.dialog_release_notes.hide()
if res == Gtk.ResponseType.OK:
return True
return False
except ImportError:
pass
return None
def _try_show_release_notes_textview(self):
# FIXME: care about i18n! (append -$lang or something)
if self.new_dist.releaseNotesURI is not None:
uri = self._expandUri(self.new_dist.releaseNotesURI)
if self.window_main:
self.window_main.set_sensitive(False)
self.window_main.get_window().set_cursor(
Gdk.Cursor.new(Gdk.CursorType.WATCH))
while Gtk.events_pending():
Gtk.main_iteration()
# download/display the release notes
# FIXME: add some progress reporting here
res = Gtk.ResponseType.CANCEL
timeout = socket.getdefaulttimeout()
try:
socket.setdefaulttimeout(5)
release_notes = urlopen(uri)
notes = release_notes.read().decode("UTF-8", "replace")
textview_release_notes = ReleaseNotesViewer(notes)
textview_release_notes.show()
self.widgets.scrolled_notes.add(textview_release_notes)
release_widget = self.widgets.dialog_release_notes
release_widget.set_transient_for(self.window_main)
res = self.widgets.dialog_release_notes.run()
self.widgets.dialog_release_notes.hide()
except HTTPError:
primary = "<span weight=\"bold\" size=\"larger\">%s</span>" % \
_("Could not find the release notes")
secondary = _("The server may be overloaded. ")
dialog = Gtk.MessageDialog(self.window_main,
Gtk.DialogFlags.MODAL,
Gtk.MessageType.ERROR,
Gtk.ButtonsType.CLOSE, "")
dialog.set_title("")
dialog.set_markup(primary)
dialog.format_secondary_text(secondary)
dialog.run()
dialog.destroy()
except IOError:
primary = "<span weight=\"bold\" size=\"larger\">%s</span>" % \
_("Could not download the release notes")
secondary = _("Please check your internet connection.")
dialog = Gtk.MessageDialog(self.window_main,
Gtk.DialogFlags.MODAL,
Gtk.MessageType.ERROR,
Gtk.ButtonsType.CLOSE, "")
dialog.set_title("")
dialog.set_markup(primary)
dialog.format_secondary_text(secondary)
dialog.run()
dialog.destroy()
socket.setdefaulttimeout(timeout)
if self.window_main:
self.window_main.set_sensitive(True)
self.window_main.get_window().set_cursor(None)
# user clicked cancel
if res == Gtk.ResponseType.OK:
return True
return False
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