# # Copyright (C) 2006, 2013-2014 Red Hat, Inc. # Copyright (C) 2006 Daniel P. Berrange # # 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., 51 Franklin Street, Fifth Floor, Boston, # MA 02110-1301 USA. # import logging import re import Queue import threading import traceback from gi.repository import Gio from gi.repository import GLib from gi.repository import GObject from gi.repository import Gtk from . import packageutils from .about import vmmAbout from .baseclass import vmmGObject from .clone import vmmCloneVM from .connect import vmmConnect from .connection import vmmConnection from .preferences import vmmPreferences from .manager import vmmManager from .migrate import vmmMigrateDialog from .details import vmmDetails from .asyncjob import vmmAsyncJob from .create import vmmCreate from .host import vmmHost from .error import vmmErrorDialog from .systray import vmmSystray from .delete import vmmDeleteDialog # Enabling this will tell us, at app exit time, which vmmGObjects were not # garbage collected. This is caused by circular references to other objects, # like a signal that wasn't disconnected. It's not a big deal, but if we # have objects that can be created and destroyed a lot over the course of # the app lifecycle, every non-garbage collected class is a memory leak. # So it's nice to poke at this every now and then and try to track down # what we need to add to class _cleanup handling. debug_ref_leaks = False DETAILS_PERF = 1 DETAILS_CONFIG = 2 DETAILS_CONSOLE = 3 (PRIO_HIGH, PRIO_LOW) = range(1, 3) class vmmEngine(vmmGObject): CLI_SHOW_DOMAIN_CREATOR = "creator" CLI_SHOW_DOMAIN_EDITOR = "editor" CLI_SHOW_DOMAIN_PERFORMANCE = "performance" CLI_SHOW_DOMAIN_CONSOLE = "console" CLI_SHOW_HOST_SUMMARY = "summary" __gsignals__ = { "conn-added": (GObject.SignalFlags.RUN_FIRST, None, [object]), "conn-removed": (GObject.SignalFlags.RUN_FIRST, None, [str]), } def __init__(self): vmmGObject.__init__(self) self.windowConnect = None self.windowPreferences = None self.windowAbout = None self.windowCreate = None self.windowManager = None self.windowMigrate = None self.conns = {} self.err = vmmErrorDialog() self.err.set_find_parent_cb(self._find_error_parent_cb) self.timer = None self.last_timeout = 0 self.systray = None self.delete_dialog = None self._gtkapplication = None self._init_gtk_application() self._tick_counter = 0 self._tick_thread_slow = False self._tick_thread = threading.Thread(name="Tick thread", target=self._handle_tick_queue, args=()) self._tick_thread.daemon = True self._tick_queue = Queue.PriorityQueue(100) self.inspection = None self._create_inspection_thread() # Counter keeping track of how many manager and details windows # are open. When it is decremented to 0, close the app or # keep running in system tray if enabled self.windows = 0 self.init_systray() self.add_gsettings_handle( self.config.on_stats_update_interval_changed(self.reschedule_timer)) self.add_gsettings_handle( self.config.on_view_system_tray_changed(self.system_tray_changed)) self.schedule_timer() self.load_stored_uris() self._tick_thread.start() self.tick() ############################ # Gtk Application handling # ############################ def _on_gtk_application_activated(self, ignore): """ Invoked after application.run() """ if not self._application.get_windows(): logging.debug("Initial gtkapplication activated") self._application.add_window(Gtk.Window()) def _init_gtk_application(self): self._application = Gtk.Application( application_id="org.virt-manager.virt-manager", flags=0) self._application.register(None) self._application.connect("activate", self._on_gtk_application_activated) action = Gio.SimpleAction.new("cli_command", GLib.VariantType.new("(sss)")) action.connect("activate", self._handle_cli_command) self._application.add_action(action) def _default_startup(self, skip_autostart, cliuri): uris = self.conns.keys() if not uris: logging.debug("No stored URIs found.") else: logging.debug("Loading stored URIs:\n%s", " \n".join(sorted(uris))) if not skip_autostart: self.idle_add(self.autostart_conns) if not self.config.get_conn_uris() and not cliuri: # Only add default if no connections are currently known self.timeout_add(1000, self._add_default_conn) def start(self, uri, show_window, domain, skip_autostart): # Dispatch dbus CLI command data = GLib.Variant("(sss)", (uri or "", show_window or "", domain or "")) self._application.activate_action("cli_command", data) if self._application.get_is_remote(): logging.debug("Connected to remote app instance.") return self._default_startup(skip_autostart, uri) self._application.run(None) def init_systray(self): if self.systray: return self.systray = vmmSystray() self.systray.connect("action-toggle-manager", self._do_toggle_manager) self.systray.connect("action-suspend-domain", self._do_suspend_domain) self.systray.connect("action-resume-domain", self._do_resume_domain) self.systray.connect("action-run-domain", self._do_run_domain) self.systray.connect("action-shutdown-domain", self._do_shutdown_domain) self.systray.connect("action-reboot-domain", self._do_reboot_domain) self.systray.connect("action-destroy-domain", self._do_destroy_domain) self.systray.connect("action-reset-domain", self._do_reset_domain) self.systray.connect("action-save-domain", self._do_save_domain) self.systray.connect("action-show-domain", self._do_show_vm) self.systray.connect("action-migrate-domain", self._do_show_migrate) self.systray.connect("action-delete-domain", self._do_delete_domain) self.systray.connect("action-clone-domain", self._do_show_clone) self.systray.connect("action-exit-app", self.exit_app) self.connect("conn-added", self.systray.conn_added) self.connect("conn-removed", self.systray.conn_removed) def system_tray_changed(self, *ignore): systray_enabled = self.config.get_view_system_tray() if self.windows == 0 and not systray_enabled: # Show the manager so that the user can control the application self._show_manager() def _add_default_conn(self): manager = self.get_manager() # Manager fail message msg = _("Could not detect a default hypervisor. Make\n" "sure the appropriate virtualization packages\n" "containing kvm, qemu, libvirt, etc. are\n" "installed, and that libvirtd is running.\n\n" "A hypervisor connection can be manually\n" "added via File->Add Connection") logging.debug("Determining default libvirt URI") ret = None try: libvirt_packages = self.config.libvirt_packages packages = self.config.hv_packages + libvirt_packages ret = packageutils.check_packagekit(manager, manager.err, packages) except Exception: logging.exception("Error talking to PackageKit") tryuri = None if ret: tryuri = "qemu:///system" elif not self.config.test_first_run: tryuri = vmmConnect.default_uri() if tryuri is None: manager.set_startup_error(msg) return warnmsg = _("The 'libvirtd' service will need to be started.\n\n" "After that, virt-manager will connect to libvirt on\n" "the next application start up.") # Do the initial connection in an idle callback, so the # packagekit async dialog has a chance to go away def idle_connect(): do_start = packageutils.start_libvirtd() connected = self.connect_to_uri(tryuri, autoconnect=True, do_start=do_start) if not connected and do_start: manager.err.ok(_("Libvirt service must be started"), warnmsg) self.idle_add(idle_connect) def load_stored_uris(self): uris = self.config.get_conn_uris() or [] for uri in uris: conn = self.make_conn(uri) self.register_conn(conn, skip_config=True) def autostart_conns(self): """ We serialize conn autostart, so polkit/ssh-askpass doesn't spam """ queue = Queue.Queue() auto_conns = [uri for uri in self.conns if self.conns[uri]["conn"].get_autoconnect()] def add_next_to_queue(): if not auto_conns: queue.put(None) else: queue.put(auto_conns.pop(0)) def state_change_cb(conn): if conn.is_active(): add_next_to_queue() conn.disconnect_by_func(state_change_cb) def connect(uri): self.connect_to_uri(uri) def handle_queue(): while True: uri = queue.get() if uri is None: return if uri not in self.conns: add_next_to_queue() continue conn = self.conns[uri]["conn"] conn.connect("state-changed", state_change_cb) self.idle_add(connect, uri) add_next_to_queue() self._start_thread(handle_queue, "Conn autostart thread") def _do_vm_removed(self, conn, connkey): hvuri = conn.get_uri() if connkey not in self.conns[hvuri]["windowDetails"]: return self.conns[hvuri]["windowDetails"][connkey].cleanup() del(self.conns[hvuri]["windowDetails"][connkey]) def _do_vm_renamed(self, conn, oldconnkey, newconnkey): hvuri = conn.get_uri() if oldconnkey not in self.conns[hvuri]["windowDetails"]: return self.conns[hvuri]["windowDetails"][newconnkey] = ( self.conns[hvuri]["windowDetails"].pop(oldconnkey)) def _do_conn_changed(self, conn): if conn.is_active() or conn.is_connecting(): return hvuri = conn.get_uri() for connkey in self.conns[hvuri]["windowDetails"].keys(): self.conns[hvuri]["windowDetails"][connkey].cleanup() del(self.conns[hvuri]["windowDetails"][connkey]) if (self.windowCreate and self.windowCreate.conn and self.windowCreate.conn.get_uri() == hvuri): self.windowCreate.close() def reschedule_timer(self, *args, **kwargs): ignore1 = args ignore2 = kwargs self.schedule_timer() def schedule_timer(self): interval = self.config.get_stats_update_interval() * 1000 if self.timer is not None: self.remove_gobject_timeout(self.timer) self.timer = None self.timer = self.timeout_add(interval, self.tick) def _add_obj_to_tick_queue(self, obj, isprio, **kwargs): if self._tick_queue.full(): if not self._tick_thread_slow: logging.debug("Tick is slow, not running at requested rate.") self._tick_thread_slow = True return self._tick_counter += 1 self._tick_queue.put((isprio and PRIO_HIGH or PRIO_LOW, self._tick_counter, obj, kwargs)) def _schedule_priority_tick(self, conn, kwargs): self._add_obj_to_tick_queue(conn, True, **kwargs) def tick(self): for uri in self.conns: conn = self.conns[uri]["conn"] self._add_obj_to_tick_queue(conn, False, stats_update=True, pollvm=True) return 1 def _handle_tick_error(self, msg, details): if self.windows <= 0: # This means the systray icon is running. Don't raise an error # here to avoid spamming dialogs out of nowhere. logging.debug(msg + "\n\n" + details) return self.err.show_err(msg, details=details) def _handle_tick_queue(self): while True: ignore1, ignore2, conn, kwargs = self._tick_queue.get() try: conn.tick_from_engine(**kwargs) except Exception as e: tb = "".join(traceback.format_exc()) error_msg = (_("Error polling connection '%s': %s") % (conn.get_uri(), e)) self.idle_add(self._handle_tick_error, error_msg, tb) # Need to clear reference to make leak check happy conn = None self._tick_queue.task_done() return 1 def increment_window_counter(self, src): ignore = src self.windows += 1 logging.debug("window counter incremented to %s", self.windows) def decrement_window_counter(self, src): self.windows -= 1 logging.debug("window counter decremented to %s", self.windows) self._exit_app_if_no_windows(src) def _can_exit(self): # Don't exit if system tray is enabled return (self.windows <= 0 and self.systray and not self.systray.is_visible()) def _cleanup(self): self.err = None if self.inspection: self.inspection.cleanup() self.inspection = None if self.timer is not None: GLib.source_remove(self.timer) if self.systray: self.systray.cleanup() self.systray = None self.get_manager() if self.windowManager: self.windowManager.cleanup() self.windowManager = None if self.windowPreferences: self.windowPreferences.cleanup() self.windowPreferences = None if self.windowAbout: self.windowAbout.cleanup() self.windowAbout = None if self.windowConnect: self.windowConnect.cleanup() self.windowConnect = None if self.windowCreate: self.windowCreate.cleanup() self.windowCreate = None if self.windowMigrate: self.windowMigrate.cleanup() self.windowMigrate = None if self.delete_dialog: self.delete_dialog.cleanup() self.delete_dialog = None # Do this last, so any manually 'disconnected' signals # take precedence over cleanup signal removal for uri in self.conns: self.cleanup_conn(uri) self.conns = {} def _exit_app_if_no_windows(self, src=None): def cb(): if self._can_exit(): logging.debug("No windows found, requesting app exit") self.exit_app(src or self) self.idle_add(cb) def exit_app(self, src): if self.err is None: # Already in cleanup return self.cleanup() if debug_ref_leaks: objs = self.config.get_objects() # Engine will always appear to leak objs.remove(self.object_key) if src and src.object_key in objs: # UI that initiates the app exit will always appear to leak objs.remove(src.object_key) for name in objs: logging.debug("Leaked %s", name) logging.debug("Exiting app normally.") self._application.quit() def _create_inspection_thread(self): logging.debug("libguestfs inspection support: %s", self.config.support_inspection) if not self.config.support_inspection: return from .inspection import vmmInspection self.inspection = vmmInspection() self.inspection.start() self.connect("conn-added", self.inspection.conn_added) self.connect("conn-removed", self.inspection.conn_removed) return def _find_error_parent_cb(self): """ Search over the toplevel windows for any that are visible or have focus, and use that """ windowlist = [self.windowManager] for conndict in self.conns.values(): windowlist.extend(conndict["windowDetails"].values()) windowlist.extend( [conndict["windowHost"] for conndict in self.conns.values()]) use_win = None for window in windowlist: if not window: continue if window.topwin.has_focus(): use_win = window break if not use_win and window.is_visible(): use_win = window if use_win: return use_win.topwin def make_conn(self, uri, probe=False): conn = self._check_conn(uri) if conn: return conn conn = vmmConnection(uri) self.conns[uri] = { "conn": conn, "windowHost": None, "windowDetails": {}, "windowClone": None, "probeConnection": probe } conn.connect("vm-removed", self._do_vm_removed) conn.connect("vm-renamed", self._do_vm_renamed) conn.connect("state-changed", self._do_conn_changed) conn.connect("connect-error", self._connect_error) conn.connect("priority-tick", self._schedule_priority_tick) return conn def register_conn(self, conn, skip_config=False): # if `skip_config' then the connection is only showed in the ui and # not added to the config. if not skip_config and conn.get_uri() not in \ (self.config.get_conn_uris() or []): self.config.add_conn(conn.get_uri()) self.emit("conn-added", conn) def connect_to_uri(self, uri, autoconnect=None, do_start=True, probe=False): try: conn = self.make_conn(uri, probe=probe) self.register_conn(conn) if autoconnect is not None: conn.set_autoconnect(bool(autoconnect)) if do_start: conn.open() else: try: conn.open() except Exception: return None return conn except Exception: logging.exception("Error connecting to %s", uri) return None def cleanup_conn(self, uri): try: if self.conns[uri]["windowHost"]: self.conns[uri]["windowHost"].cleanup() if self.conns[uri]["windowClone"]: self.conns[uri]["windowClone"].cleanup() details = self.conns[uri]["windowDetails"] for win in details.values(): win.cleanup() self.conns[uri]["conn"].cleanup() except Exception: logging.exception("Error cleaning up conn in engine") def remove_conn(self, src, uri): ignore = src self.cleanup_conn(uri) del(self.conns[uri]) self.emit("conn-removed", uri) self.config.remove_conn(uri) def connect(self, name, callback, *args): handle_id = vmmGObject.connect(self, name, callback, *args) if name == "conn-added": for conn_dict in self.conns.values(): self.emit("conn-added", conn_dict["conn"]) return handle_id def _check_conn(self, uri): conn = self.conns.get(uri) if conn: return conn["conn"] return None def _lookup_conn(self, uri): conn = self._check_conn(uri) if not conn: raise RuntimeError(_("Unknown connection URI %s") % uri) return conn def _connect_error(self, conn, errmsg, tb, warnconsole): errmsg = errmsg.strip(" \n") tb = tb.strip(" \n") hint = "" show_errmsg = True if conn.is_remote(): logging.debug("connect_error: conn transport=%s", conn.get_uri_transport()) if re.search(r"nc: .* -- 'U'", tb): 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"ssh-askpass", tb)): askpass = (self.config.askpass_package and self.config.askpass_package[0] or "openssh-askpass") hint += _("You need to install %s or " "similar to connect to this host.") % askpass show_errmsg = False else: hint += _("Verify that the 'libvirtd' daemon is running " "on the remote host.") elif conn.is_xen(): 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"libvirt-sock", tb): hint += _("Verify that the 'libvirtd' daemon is running.") show_errmsg = False probe_connection = self.conns[conn.get_uri()]["probeConnection"] 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 if probe_connection: msg += "\n\n" msg += _("Would you still like to remember this connection?") title = _("Virtual Machine Manager Connection Failure") if probe_connection: remember_connection = self.err.show_err(msg, details, title, buttons=Gtk.ButtonsType.YES_NO, dialog_type=Gtk.MessageType.QUESTION, modal=True) if remember_connection: self.conns[conn.get_uri()]["probeConnection"] = False else: self.idle_add(self._do_edit_connect, self.windowManager, conn) else: if self._can_exit(): self.err.show_err(msg, details, title, modal=True) self._exit_app_if_no_windows(conn) else: self.err.show_err(msg, details, title) #################### # Dialog launchers # #################### def _do_show_about(self, src): try: if self.windowAbout is None: self.windowAbout = vmmAbout() self.windowAbout.show() except Exception as e: src.err.show_err(_("Error launching 'About' dialog: %s") % str(e)) def _get_preferences(self): if self.windowPreferences: return self.windowPreferences obj = vmmPreferences() self.windowPreferences = obj return self.windowPreferences def _do_show_preferences(self, src): try: self._get_preferences().show(src.topwin) except Exception as e: src.err.show_err(_("Error launching preferences: %s") % str(e)) def _get_host_dialog(self, uri): if self.conns[uri]["windowHost"]: return self.conns[uri]["windowHost"] conn = self._lookup_conn(uri) obj = vmmHost(conn) obj.connect("action-exit-app", self.exit_app) obj.connect("action-view-manager", self._do_show_manager) obj.connect("host-opened", self.increment_window_counter) obj.connect("host-closed", self.decrement_window_counter) self.conns[uri]["windowHost"] = obj return self.conns[uri]["windowHost"] def _do_show_host(self, src, uri): try: self._get_host_dialog(uri).show() except Exception as e: src.err.show_err(_("Error launching host dialog: %s") % str(e)) def _get_connect_dialog(self): if self.windowConnect: return self.windowConnect def completed(src, uri, autoconnect): ignore = src return self.connect_to_uri(uri, autoconnect, probe=True) def cancelled(src): if len(self.conns.keys()) == 0: self.exit_app(src) obj = vmmConnect() obj.connect("completed", completed) obj.connect("cancelled", cancelled) self.windowConnect = obj return self.windowConnect def _do_show_connect(self, src, reset_state=True): try: self._get_connect_dialog().show(src.topwin, reset_state) except Exception as e: src.err.show_err(_("Error launching connect dialog: %s") % str(e)) def _do_edit_connect(self, src, connection): try: self._do_show_connect(src, False) finally: self.remove_conn(None, connection.get_uri()) def _get_details_dialog(self, uri, connkey): if connkey in self.conns[uri]["windowDetails"]: return self.conns[uri]["windowDetails"][connkey] conn = self._lookup_conn(uri) obj = vmmDetails(conn.get_vm(connkey)) obj.connect("action-save-domain", self._do_save_domain) obj.connect("action-destroy-domain", self._do_destroy_domain) obj.connect("action-reset-domain", self._do_reset_domain) obj.connect("action-suspend-domain", self._do_suspend_domain) obj.connect("action-resume-domain", self._do_resume_domain) obj.connect("action-run-domain", self._do_run_domain) obj.connect("action-shutdown-domain", self._do_shutdown_domain) obj.connect("action-reboot-domain", self._do_reboot_domain) obj.connect("action-exit-app", self.exit_app) obj.connect("action-view-manager", self._do_show_manager) obj.connect("action-migrate-domain", self._do_show_migrate) obj.connect("action-delete-domain", self._do_delete_domain) obj.connect("action-clone-domain", self._do_show_clone) obj.connect("details-opened", self.increment_window_counter) obj.connect("details-closed", self.decrement_window_counter) obj.connect("inspection-refresh", self._do_refresh_inspection) self.conns[uri]["windowDetails"][connkey] = obj return self.conns[uri]["windowDetails"][connkey] def _show_vm_helper(self, src, uri, vm, page, forcepage): try: details = self._get_details_dialog(uri, vm.get_connkey()) if forcepage or not details.is_visible(): if page == DETAILS_PERF: details.activate_performance_page() elif page == DETAILS_CONFIG: details.activate_config_page() elif page == DETAILS_CONSOLE: details.activate_console_page() elif page is None: details.activate_default_page() details.show() except Exception as e: src.err.show_err(_("Error launching details: %s") % str(e)) def _do_show_vm(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) self._show_vm_helper(src, uri, vm, None, False) def get_manager(self): if self.windowManager: return self.windowManager obj = vmmManager() obj.connect("action-suspend-domain", self._do_suspend_domain) obj.connect("action-resume-domain", self._do_resume_domain) obj.connect("action-run-domain", self._do_run_domain) obj.connect("action-shutdown-domain", self._do_shutdown_domain) obj.connect("action-reboot-domain", self._do_reboot_domain) obj.connect("action-destroy-domain", self._do_destroy_domain) obj.connect("action-reset-domain", self._do_reset_domain) obj.connect("action-save-domain", self._do_save_domain) obj.connect("action-migrate-domain", self._do_show_migrate) obj.connect("action-delete-domain", self._do_delete_domain) obj.connect("action-clone-domain", self._do_show_clone) obj.connect("action-show-domain", self._do_show_vm) obj.connect("action-show-preferences", self._do_show_preferences) obj.connect("action-show-create", self._do_show_create) obj.connect("action-show-about", self._do_show_about) obj.connect("action-show-host", self._do_show_host) obj.connect("action-show-connect", self._do_show_connect) obj.connect("action-exit-app", self.exit_app) obj.connect("manager-opened", self.increment_window_counter) obj.connect("manager-closed", self.decrement_window_counter) obj.connect("remove-conn", self.remove_conn) self.connect("conn-added", obj.add_conn) self.connect("conn-removed", obj.remove_conn) self.windowManager = obj return self.windowManager def _do_toggle_manager(self, ignore): manager = self.get_manager() if manager.is_visible(): manager.close() else: manager.show() def _do_show_manager(self, src): try: manager = self.get_manager() manager.show() except Exception as e: if not src: raise src.err.show_err(_("Error launching manager: %s") % str(e)) def _get_create_dialog(self): if self.windowCreate: return self.windowCreate obj = vmmCreate(self) obj.connect("action-show-domain", self._do_show_vm) obj.connect("create-opened", self.increment_window_counter) obj.connect("create-closed", self.decrement_window_counter) self.windowCreate = obj return self.windowCreate def _do_show_create(self, src, uri): try: self._get_create_dialog().show(src.topwin, uri) except Exception as e: src.err.show_err(_("Error launching manager: %s") % str(e)) def _do_show_migrate(self, src, uri, connkey): try: conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) if not self.windowMigrate: self.windowMigrate = vmmMigrateDialog(self) self.windowMigrate.show(src.topwin, vm) except Exception as e: src.err.show_err(_("Error launching migrate dialog: %s") % str(e)) def _do_show_clone(self, src, uri, connkey): conn = self._lookup_conn(uri) orig_vm = conn.get_vm(connkey) clone_window = self.conns[uri]["windowClone"] try: if clone_window is None: clone_window = vmmCloneVM(orig_vm) self.conns[uri]["windowClone"] = clone_window else: clone_window.set_orig_vm(orig_vm) clone_window.show(src.topwin) except Exception as e: src.err.show_err(_("Error setting clone parameters: %s") % str(e)) def _do_refresh_inspection(self, src_ignore, uri, connkey): if not self.inspection: return conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) self.inspection.vm_refresh(vm) ########################################## # Window launchers from virt-manager cli # ########################################## def _find_vm_by_cli_str(self, uri, clistr): """ Lookup a VM by a string passed in on the CLI. Can be either ID, domain name, or UUID """ if clistr.isdigit(): clistr = int(clistr) for vm in self.conns[uri]["conn"].list_vms(): if clistr == vm.get_id(): return vm elif clistr == vm.get_name(): return vm elif clistr == vm.get_uuid(): return vm def _cli_show_vm_helper(self, uri, clistr, page): src = self.get_manager() vm = self._find_vm_by_cli_str(uri, clistr) if not vm: src.err.show_err("%s does not have VM '%s'" % (uri, clistr), modal=True) return self._show_vm_helper(src, uri, vm, page, True) def _show_manager(self): self._do_show_manager(None) def _show_host_summary(self, uri): self._do_show_host(self.get_manager(), uri) def _show_domain_creator(self, uri): self._do_show_create(self.get_manager(), uri) def _show_domain_console(self, uri, clistr): self._cli_show_vm_helper(uri, clistr, DETAILS_CONSOLE) def _show_domain_editor(self, uri, clistr): self._cli_show_vm_helper(uri, clistr, DETAILS_CONFIG) def _show_domain_performance(self, uri, clistr): self._cli_show_vm_helper(uri, clistr, DETAILS_PERF) def _launch_cli_window(self, uri, show_window, clistr): try: logging.debug("Launching requested window '%s'", show_window) if show_window == self.CLI_SHOW_DOMAIN_CREATOR: self._show_domain_creator(uri) elif show_window == self.CLI_SHOW_DOMAIN_EDITOR: self._show_domain_editor(uri, clistr) elif show_window == self.CLI_SHOW_DOMAIN_PERFORMANCE: self._show_domain_performance(uri, clistr) elif show_window == self.CLI_SHOW_DOMAIN_CONSOLE: self._show_domain_console(uri, clistr) elif show_window == self.CLI_SHOW_HOST_SUMMARY: self._show_host_summary(uri) else: raise RuntimeError("Unknown cli window command '%s'" % show_window) finally: # In case of cli error, we may need to exit the app self._exit_app_if_no_windows() def _cli_conn_connected_cb(self, conn, uri, show_window, domain): try: ignore = conn if conn.is_disconnected(): raise RuntimeError("failed to connect to cli uri=%s" % uri) if conn.is_active(): self._launch_cli_window(uri, show_window, domain) return True return False except Exception: # In case of cli error, we may need to exit the app logging.debug("Error in cli connection callback", exc_info=True) self._exit_app_if_no_windows() return True def _do_handle_cli_command(self, actionobj, variant): ignore = actionobj uri = variant[0] show_window = variant[1] domain = variant[2] logging.debug("processing cli command uri=%s show_window=%s domain=%s", uri, show_window, domain) if not uri: logging.debug("No cli action requested, launching default window") self._show_manager() return conn = self.make_conn(uri) self.register_conn(conn, skip_config=True) if conn.is_disconnected(): # Schedule connection open def connect(): # We need to wrap this to ignore the return value, otherwise # the callback will be rescheduled self.connect_to_uri(uri) self.idle_add(connect) if show_window: if conn.is_active(): self.idle_add(self._launch_cli_window, uri, show_window, domain) else: conn.connect_opt_out("state-changed", self._cli_conn_connected_cb, uri, show_window, domain) else: self.get_manager().set_initial_selection(uri) self._show_manager() def _handle_cli_command(self, actionobj, variant): try: return self._do_handle_cli_command(actionobj, variant) except Exception: # In case of cli error, we may need to exit the app logging.debug("Error handling cli command", exc_info=True) self._exit_app_if_no_windows() ####################################### # Domain actions run/destroy/save ... # ####################################### def _do_save_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) if not src.err.chkbox_helper(self.config.get_confirm_poweroff, self.config.set_confirm_poweroff, text1=_("Are you sure you want to save '%s'?") % vm.get_name()): return _cancel_cb = None if vm.getjobinfo_supported: _cancel_cb = (self._save_cancel, vm) def cb(asyncjob): vm.save(meter=asyncjob.get_meter()) def finish_cb(error, details): if error is not None: error = _("Error saving domain: %s") % error src.err.show_err(error, details=details) progWin = vmmAsyncJob(cb, [], finish_cb, [], _("Saving Virtual Machine"), _("Saving virtual machine memory to disk "), src.topwin, cancel_cb=_cancel_cb) progWin.run() def _save_cancel(self, asyncjob, vm): logging.debug("Cancelling save job") if not vm: return try: vm.abort_job() except Exception as e: logging.exception("Error cancelling save job") asyncjob.show_warning(_("Error cancelling save job: %s") % str(e)) return asyncjob.job_canceled = True return def _do_destroy_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) if not src.err.chkbox_helper( self.config.get_confirm_forcepoweroff, self.config.set_confirm_forcepoweroff, text1=_("Are you sure you want to force poweroff '%s'?" % vm.get_name()), text2=_("This will immediately poweroff the VM without " "shutting down the OS and may cause data loss.")): return logging.debug("Destroying vm '%s'", vm.get_name()) vmmAsyncJob.simple_async_noshow(vm.destroy, [], src, _("Error shutting down domain")) def _do_suspend_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) if not src.err.chkbox_helper(self.config.get_confirm_pause, self.config.set_confirm_pause, text1=_("Are you sure you want to pause '%s'?" % vm.get_name())): return logging.debug("Pausing vm '%s'", vm.get_name()) vmmAsyncJob.simple_async_noshow(vm.suspend, [], src, _("Error pausing domain")) def _do_resume_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) logging.debug("Unpausing vm '%s'", vm.get_name()) vmmAsyncJob.simple_async_noshow(vm.resume, [], src, _("Error unpausing domain")) def _do_run_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) logging.debug("Starting vm '%s'", vm.get_name()) if vm.has_managed_save(): def errorcb(error, details): # This is run from the main thread res = src.err.show_err( _("Error restoring domain") + ": " + error, details=details, text2=_( "The domain could not be restored. Would you like\n" "to remove the saved state and perform a regular\n" "start up?"), dialog_type=Gtk.MessageType.WARNING, buttons=Gtk.ButtonsType.YES_NO, modal=True) if not res: return try: vm.remove_saved_image() self._do_run_domain(src, uri, connkey) except Exception as e: src.err.show_err(_("Error removing domain state: %s") % str(e)) # VM will be restored, which can take some time, so show progress title = _("Restoring Virtual Machine") text = _("Restoring virtual machine memory from disk") vmmAsyncJob.simple_async(vm.startup, [], src, title, text, "", errorcb=errorcb) else: # Regular startup errorintro = _("Error starting domain") vmmAsyncJob.simple_async_noshow(vm.startup, [], src, errorintro) def _do_shutdown_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) if not src.err.chkbox_helper(self.config.get_confirm_poweroff, self.config.set_confirm_poweroff, text1=_("Are you sure you want to poweroff '%s'?" % vm.get_name())): return logging.debug("Shutting down vm '%s'", vm.get_name()) vmmAsyncJob.simple_async_noshow(vm.shutdown, [], src, _("Error shutting down domain")) def _do_reboot_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) if not src.err.chkbox_helper(self.config.get_confirm_poweroff, self.config.set_confirm_poweroff, text1=_("Are you sure you want to reboot '%s'?" % vm.get_name())): return logging.debug("Rebooting vm '%s'", vm.get_name()) vmmAsyncJob.simple_async_noshow(vm.reboot, [], src, _("Error rebooting domain")) def _do_reset_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) if not src.err.chkbox_helper( self.config.get_confirm_forcepoweroff, self.config.set_confirm_forcepoweroff, text1=_("Are you sure you want to force reset '%s'?" % vm.get_name()), text2=_("This will immediately reset the VM without " "shutting down the OS and may cause data loss.")): return logging.debug("Resetting vm '%s'", vm.get_name()) vmmAsyncJob.simple_async_noshow(vm.reset, [], src, _("Error resetting domain")) def _do_delete_domain(self, src, uri, connkey): conn = self._lookup_conn(uri) vm = conn.get_vm(connkey) try: if not self.delete_dialog: self.delete_dialog = vmmDeleteDialog() self.delete_dialog.show(vm, src.topwin) except Exception as e: src.err.show_err(_("Error launching delete dialog: %s") % str(e))