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# Copyright (C) 2012-2013 Red Hat, Inc.
# Copyright (C) 2012 Cole Robinson <crobinso@redhat.com>
#
# This work is licensed under the GNU GPLv2 or later.
# See the COPYING file in the top-level directory.
import collections
import os
import re
import time
from gi.repository import GLib
from gi.repository import Gio
from gi.repository import Gtk
import libvirt
from virtinst import log
from ..baseclass import vmmGObjectUI
from . import uiutil
def do_we_have_session():
pid = os.getpid()
ret = False
try: # pragma: no cover
bus = Gio.bus_get_sync(Gio.BusType.SYSTEM, None)
manager = Gio.DBusProxy.new_sync(
bus,
0,
None,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
None,
)
# This raises an error exception
out = manager.GetSessionByPID("(u)", pid)
log.debug("Found login1 session=%s", out)
ret = True
except Exception: # pragma: no cover
log.exception("Failure talking to logind")
return ret
class _vmmConnectAuth(vmmGObjectUI):
def __init__(self, creds):
vmmGObjectUI.__init__(self, "connectauth.ui", "connectauth")
self.creds = creds
self.topwin.set_title(_("Authentication required"))
self.builder.connect_signals(
{
"on_connectauth_cancel_clicked": self._cancel_cb,
"on_connectauth_ok_clicked": self._ok_cb,
"on_entry1_activate": self._entry_cb,
"on_entry2_activate": self._entry_cb,
}
)
self.entry1 = self.widget("entry1")
self.entry2 = self.widget("entry2")
self._init_ui()
def _cleanup(self):
pass
def _init_ui(self):
uiutil.set_grid_row_visible(self.entry1, False)
uiutil.set_grid_row_visible(self.entry2, False)
for idx, cred in enumerate(self.creds):
# Libvirt virConnectCredential
credtype, prompt, _challenge, _defresult, _result = cred
noecho = credtype in [libvirt.VIR_CRED_PASSPHRASE, libvirt.VIR_CRED_NOECHOPROMPT]
if not prompt: # pragma: no cover
raise RuntimeError("No prompt for auth credtype=%s" % credtype)
prompt += ": "
label = self.widget("label%s" % (idx + 1))
entry = self.widget("entry%s" % (idx + 1))
uiutil.set_grid_row_visible(label, True)
label.set_text(prompt)
entry.set_visibility(not noecho)
entry.get_accessible().set_name(prompt + " entry")
def run(self):
self.topwin.show()
res = self.topwin.run()
self.topwin.hide()
if res != Gtk.ResponseType.OK:
return -1
self.creds[0][4] = self.entry1.get_text()
if self.entry2.get_visible():
self.creds[1][4] = self.entry2.get_text()
return 0
def _ok_cb(self, src):
self.topwin.response(Gtk.ResponseType.OK)
def _cancel_cb(self, src):
self.topwin.response(Gtk.ResponseType.CANCEL)
def _entry_cb(self, src):
"""
If entry 1 activated and entry2 visible, jump to entry 2.
Otherwise, click OK
"""
if src == self.entry1 and self.entry2.is_visible():
self.entry2.grab_focus()
return
self.topwin.response(Gtk.ResponseType.OK)
def creds_dialog(creds, cbdata):
"""
Thread safe wrapper for libvirt openAuth user/pass callback
"""
retipc = []
def wrapper(creds, cbdata):
try:
_conn = cbdata
dialogobj = _vmmConnectAuth(creds)
ret = dialogobj.run()
dialogobj.cleanup()
except Exception: # pragma: no cover
log.exception("Error from creds dialog")
ret = -1
retipc.append(ret)
GLib.idle_add(wrapper, creds, cbdata)
while not retipc:
time.sleep(0.1)
return retipc[0]
def connect_error(conn, errmsg, tb, warnconsole):
"""
Format connection error message
"""
errmsg = errmsg.strip(" \n")
tb = tb.strip(" \n")
hint = ""
show_errmsg = True
if conn.is_remote():
log.debug("connect_error: conn transport=%s", conn.get_uri_transport())
if re.search(r"nc: .* -- 'U'", tb): # pragma: no cover
hint += _(
"The remote host requires a version of netcat/nc which supports the -U option."
)
show_errmsg = False
elif conn.get_uri_transport() == "ssh" and re.search(r"askpass", tb): # pragma: no cover
hint += _(
"Configure SSH key access for the remote host, "
"or install an SSH askpass package locally."
)
show_errmsg = False
else:
hint += _("Verify that an appropriate libvirt daemon is running on the remote host.")
elif conn.is_xen(): # pragma: no cover
hint += _(
"Verify that:\n"
" - A Xen host kernel was booted\n"
" - The Xen service has been started"
)
else:
if warnconsole:
hint += _(
"Could not detect a local session: if you are "
"running virt-manager over ssh -X or VNC, you "
"may not be able to connect to libvirt as a "
"regular user. Try running as root."
)
show_errmsg = False
elif re.search(r"virt[a-z]*-sock", tb): # pragma: no cover
hint += _("Verify that an appropriate libvirt daemon is running.")
show_errmsg = False
msg = _("Unable to connect to libvirt %s.") % conn.get_uri()
if show_errmsg:
msg += "\n\n%s" % errmsg
if hint:
msg += "\n\n%s" % hint
msg = msg.strip("\n")
details = msg
details += "\n\n"
details += "Libvirt URI is: %s\n\n" % conn.get_uri()
details += tb
title = _("Virtual Machine Manager Connection Failure")
ConnectError = collections.namedtuple("ConnectError", ["msg", "details", "title"])
return ConnectError(msg, details, title)
##################################
# App first run connection setup #
##################################
def setup_first_uri(_config, detected_uri):
msg = ""
if not detected_uri:
msg += _(
"Could not detect a default hypervisor. Make "
"sure the appropriate QEMU/KVM virtualization and libvirt "
"packages are installed to manage virtualization "
"on this host."
)
if msg:
msg += "\n\n"
msg += _("A virtualization connection can be manually added via File->Add Connection")
return msg or None
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