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# Copyright (C) 2006, 2013 Red Hat, Inc.
# Copyright (C) 2006 Daniel P. Berrange <berrange@redhat.com>
#
# This work is licensed under the GNU GPLv2 or later.
# See the COPYING file in the top-level directory.
import glob
import os
import urllib.parse
from gi.repository import Gtk
from virtinst import log
from .lib import uiutil
from .baseclass import vmmGObjectUI
from .connmanager import vmmConnectionManager
(HV_QEMU, HV_XEN, HV_LXC, HV_QEMU_SESSION, HV_BHYVE, HV_VZ, HV_CUSTOM) = range(7)
def _default_uri(): # pragma: no cover
if os.path.exists("/var/lib/xen"):
if os.path.exists("/dev/xen/evtchn") or os.path.exists("/proc/xen"):
return "xen:///"
if (
os.path.exists("/usr/bin/qemu")
or os.path.exists("/usr/bin/qemu-kvm")
or os.path.exists("/usr/bin/kvm")
or os.path.exists("/usr/libexec/qemu-kvm")
or glob.glob("/usr/bin/qemu-system-*")
):
return "qemu:///system"
if os.path.exists("/usr/lib/libvirt/libvirt_lxc") or os.path.exists(
"/usr/lib64/libvirt/libvirt_lxc"
):
return "lxc:///"
return None
class vmmCreateConn(vmmGObjectUI):
@classmethod
def get_instance(cls, parentobj):
try:
if not cls._instance:
cls._instance = vmmCreateConn()
return cls._instance
except Exception as e: # pragma: no cover
parentobj.err.show_err(_("Error launching connect dialog: %s") % str(e))
def __init__(self):
vmmGObjectUI.__init__(self, "createconn.ui", "vmm-open-connection")
self._cleanup_on_app_close()
self.builder.connect_signals(
{
"on_hypervisor_changed": self.hypervisor_changed,
"on_connect_remote_toggled": self.connect_remote_toggled,
"on_username_entry_changed": self.username_changed,
"on_hostname_changed": self.hostname_changed,
"on_cancel_clicked": self.cancel,
"on_connect_clicked": self.open_conn,
"on_vmm_open_connection_delete_event": self.cancel,
}
)
self.set_initial_state()
self.reset_state()
@staticmethod
def default_uri():
return _default_uri()
def cancel(self, ignore1=None, ignore2=None):
log.debug("Cancelling open connection")
self.close()
return 1
def close(self, ignore1=None, ignore2=None):
log.debug("Closing open connection")
self.topwin.hide()
def show(self, parent):
log.debug("Showing open connection")
if self.is_visible():
self.topwin.present()
return
self.reset_state()
self.topwin.set_transient_for(parent)
self.topwin.present()
def _cleanup(self):
pass
def set_initial_state(self):
self.widget("connect").grab_default()
combo = self.widget("hypervisor")
# [connection ID, label]
model = Gtk.ListStore(int, str)
def _add_hv_row(rowid, config_name, label):
if (
not self.config.default_hvs
or not config_name
or config_name in self.config.default_hvs
):
model.append([rowid, label])
_add_hv_row(HV_QEMU, "qemu", "QEMU/KVM")
_add_hv_row(HV_QEMU_SESSION, "qemu", "QEMU/KVM " + _("user session"))
_add_hv_row(HV_XEN, "xen", "Xen")
_add_hv_row(HV_LXC, "lxc", "Libvirt-LXC")
_add_hv_row(HV_BHYVE, "bhyve", "Bhyve")
_add_hv_row(HV_VZ, "vz", "Virtuozzo")
_add_hv_row(-1, None, "")
_add_hv_row(HV_CUSTOM, None, _("Custom URI..."))
combo.set_model(model)
uiutil.init_combo_text_column(combo, 1)
def sepfunc(model, it):
return model[it][0] == -1
combo.set_row_separator_func(sepfunc)
def reset_state(self):
self.set_default_hypervisor()
self.widget("autoconnect").set_sensitive(True)
self.widget("autoconnect").set_active(True)
self.widget("hostname").set_text("")
self.widget("connect-remote").set_active(False)
self.widget("username-entry").set_text("")
self.widget("uri-entry").set_text("")
self.connect_remote_toggled(self.widget("connect-remote"))
self.populate_uri()
def is_remote(self):
# Whether user is requesting a remote connection
return self.widget("connect-remote").get_active()
def set_default_hypervisor(self):
default = self.default_uri()
if not default or default.startswith("qemu"):
uiutil.set_list_selection(self.widget("hypervisor"), HV_QEMU)
elif default.startswith("xen"): # pragma: no cover
uiutil.set_list_selection(self.widget("hypervisor"), HV_XEN)
def hostname_changed(self, src_ignore):
self.populate_uri()
def hypervisor_changed(self, src):
ignore = src
hv = uiutil.get_list_selection(self.widget("hypervisor"))
is_session = hv == HV_QEMU_SESSION
is_custom = hv == HV_CUSTOM
show_remote = not is_session and not is_custom
uiutil.set_grid_row_visible(self.widget("session-warning-box"), is_session)
uiutil.set_grid_row_visible(self.widget("connect-remote"), show_remote)
uiutil.set_grid_row_visible(self.widget("username-entry"), show_remote)
uiutil.set_grid_row_visible(self.widget("hostname"), show_remote)
if not show_remote:
self.widget("connect-remote").set_active(False)
uiutil.set_grid_row_visible(self.widget("uri-label"), not is_custom)
uiutil.set_grid_row_visible(self.widget("uri-entry"), is_custom)
if is_custom:
label = self.widget("uri-label").get_text()
self.widget("uri-entry").set_text(label)
self.widget("uri-entry").grab_focus()
self.populate_uri()
def username_changed(self, src_ignore):
self.populate_uri()
def connect_remote_toggled(self, src_ignore):
is_remote = self.is_remote()
self.widget("hostname").set_sensitive(is_remote)
self.widget("autoconnect").set_active(not is_remote)
self.widget("username-entry").set_sensitive(is_remote)
if is_remote and not self.widget("username-entry").get_text():
self.widget("username-entry").set_text("root")
self.populate_uri()
def populate_uri(self):
uri = self.generate_uri()
self.widget("uri-label").set_text(uri)
def generate_uri(self):
hv = uiutil.get_list_selection(self.widget("hypervisor"))
host = self.widget("hostname").get_text().strip()
user = self.widget("username-entry").get_text()
is_remote = self.is_remote()
hvstr = ""
if hv == HV_XEN:
hvstr = "xen"
elif hv == HV_QEMU or hv == HV_QEMU_SESSION:
hvstr = "qemu"
elif hv == HV_BHYVE:
hvstr = "bhyve"
elif hv == HV_VZ:
hvstr = "vz"
else:
hvstr = "lxc"
addrstr = ""
if user:
addrstr += urllib.parse.quote(user) + "@"
if host.count(":") > 1:
host = "[%s]" % host
addrstr += host
if is_remote:
hoststr = "+ssh://" + addrstr + "/"
else:
hoststr = ":///"
uri = hvstr + hoststr
if hv in (HV_QEMU, HV_BHYVE, HV_VZ):
uri += "system"
elif hv == HV_QEMU_SESSION:
uri += "session"
return uri
def validate(self):
is_remote = self.is_remote()
host = self.widget("hostname").get_text()
if is_remote and not host:
msg = _("A hostname is required for remote connections.")
return self.err.val_err(msg)
return True
def _conn_open_completed(self, conn, ConnectError):
if not ConnectError:
self.close()
self.reset_finish_cursor()
return
msg, details, title = ConnectError
msg += "\n\n"
msg += _("Would you still like to remember this connection?")
remember = self.err.show_err(
msg,
details,
title,
buttons=Gtk.ButtonsType.YES_NO,
dialog_type=Gtk.MessageType.QUESTION,
modal=True,
)
self.reset_finish_cursor()
if remember:
self.close()
else:
vmmConnectionManager.get_instance().remove_conn(conn.get_uri())
def open_conn(self, ignore):
if not self.validate():
return
auto = False
if self.widget("autoconnect").get_sensitive():
auto = bool(self.widget("autoconnect").get_active())
if self.widget("uri-label").is_visible():
uri = self.generate_uri()
else:
uri = self.widget("uri-entry").get_text()
log.debug("Generate URI=%s, auto=%s", uri, auto)
conn = vmmConnectionManager.get_instance().add_conn(uri)
conn.set_autoconnect(auto)
if conn.is_active():
self._conn_open_completed(conn, None)
return
conn.connect_once("open-completed", self._conn_open_completed)
self.set_finish_cursor()
conn.open()
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