# # Copyright (C) 2009, 2012 Red Hat, Inc. # Copyright (C) 2009 Cole Robinson # # 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. # from gi.repository import Gtk from gi.repository import Gdk import os import stat import traceback import logging import virtinst from virtManager import util from virtManager.baseclass import vmmGObjectUI from virtManager.asyncjob import vmmAsyncJob STORAGE_ROW_CONFIRM = 0 STORAGE_ROW_CANT_DELETE = 1 STORAGE_ROW_PATH = 2 STORAGE_ROW_TARGET = 3 STORAGE_ROW_ICON_SHOW = 4 STORAGE_ROW_ICON = 5 STORAGE_ROW_ICON_SIZE = 6 STORAGE_ROW_TOOLTIP = 7 class vmmDeleteDialog(vmmGObjectUI): def __init__(self): vmmGObjectUI.__init__(self, "vmm-delete.ui", "vmm-delete") self.vm = None self.conn = None self.get_window().connect_signals({ "on_vmm_delete_delete_event" : self.close, "on_delete_cancel_clicked" : self.close, "on_delete_ok_clicked" : self.finish, "on_delete_remove_storage_toggled" : self.toggle_remove_storage, }) self.bind_escape_key_close() image = Gtk.Image.new_from_icon_name("vm_delete_wizard", Gtk.IconSize.DIALOG) image.show() self.widget("icon-box").pack_end(image, False, False, False) prepare_storage_list(self.widget("delete-storage-list")) def toggle_remove_storage(self, src): dodel = src.get_active() self.widget("delete-storage-list").set_sensitive(dodel) def show(self, vm, parent): logging.debug("Showing delete wizard") self.vm = vm self.conn = vm.conn self.reset_state() self.topwin.set_transient_for(parent) self.topwin.present() def close(self, ignore1=None, ignore2=None): logging.debug("Closing delete wizard") self.topwin.hide() self.vm = None self.conn = None return 1 def _cleanup(self): self.vm = None self.conn = None def reset_state(self): # Set VM name in title' title_str = ("%s '%s'" % (_("Delete"), util.xml_escape(self.vm.get_name()))) self.widget("delete-main-label").set_markup(title_str) self.widget("delete-cancel").grab_focus() # Disable storage removal by default self.widget("delete-remove-storage").set_active(True) self.widget("delete-remove-storage").toggled() populate_storage_list(self.widget("delete-storage-list"), self.vm, self.conn) def get_config_format(self): format_combo = self.widget("vol-format") model = format_combo.get_model() if format_combo.get_active_iter() is not None: model = format_combo.get_model() return model.get_value(format_combo.get_active_iter(), 0) return None def get_paths_to_delete(self): del_list = self.widget("delete-storage-list") model = del_list.get_model() paths = [] if self.widget("delete-remove-storage").get_active(): for row in model: if (not row[STORAGE_ROW_CANT_DELETE] and row[STORAGE_ROW_CONFIRM]): paths.append(row[STORAGE_ROW_PATH]) return paths def finish(self, src_ignore): devs = self.get_paths_to_delete() if devs: ret = util.chkbox_helper(self, self.config.get_confirm_delstorage, self.config.set_confirm_delstorage, text1=_("Are you sure you want to delete " "all the storage?"), text2=_("This will delete all selected " "storage data.")) if not ret: return self.topwin.set_sensitive(False) self.topwin.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.WATCH)) title = _("Deleting virtual machine '%s'") % self.vm.get_name() text = title if devs: text = title + _(" and selected storage (this may take a while)") progWin = vmmAsyncJob(self._async_delete, [devs], title, text, self.topwin) error, details = progWin.run() self.topwin.set_sensitive(True) self.topwin.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.TOP_LEFT_ARROW)) conn = self.conn if error is not None: self.err.show_err(error, details=details) conn.tick(noStatsUpdate=True) self.close() def _async_delete(self, asyncjob, paths): newconn = None storage_errors = [] details = "" try: # Open a seperate connection to install on since this is async logging.debug("Threading off connection to delete vol.") newconn = util.dup_conn(self.conn).vmm meter = asyncjob.get_meter() for path in paths: try: logging.debug("Deleting path: %s", path) meter.start(text=_("Deleting path '%s'") % path) self._async_delete_path(newconn, path, meter) except Exception, e: storage_errors.append((str(e), "".join(traceback.format_exc()))) meter.end(0) logging.debug("Removing VM '%s'", self.vm.get_name()) self.vm.delete() except Exception, e: error = (_("Error deleting virtual machine '%s': %s") % (self.vm.get_name(), str(e))) details = "".join(traceback.format_exc()) storage_errstr = "" for errinfo in storage_errors: storage_errstr += "%s\n%s\n" % (errinfo[0], errinfo[1]) if not storage_errstr and not details: return # We had extra storage errors. If there was another error message, # errors to it. Otherwise, build the main error around them. if details: details += "\n\n" details += _("Additionally, there were errors removing" " certain storage devices: \n") details += storage_errstr else: error = _("Errors encountered while removing certain " "storage devices.") details = storage_errstr if error: asyncjob.set_error(error, details) def _async_delete_path(self, conn, path, ignore): vol = None try: vol = conn.storageVolLookupByPath(path) except: logging.debug("Path '%s' is not managed. Deleting locally", path) if vol: vol.delete(0) else: os.unlink(path) def populate_storage_list(storage_list, vm, conn): model = storage_list.get_model() model.clear() for disk in vm.get_disk_devices(): vol = None target = disk.target path = disk.path ro = disk.read_only shared = disk.shareable # There are a few pieces here # 1) Can we even delete the storage? If not, make the checkbox # inconsistent. self.can_delete decides this for us, and if # we can't delete, gives us a nice message to show the user # for that row. # # 2) If we can delete, do we want to delete this storage by # default? Reasons not to, are if the storage is marked # readonly or sharable, or is in use by another VM. if not path: continue default = False definfo = None vol = conn.get_vol_by_path(path) can_del, delinfo = can_delete(conn, vol, path) if can_del: default, definfo = do_we_default(conn, vm.get_name(), vol, path, ro, shared) info = None if not can_del: info = delinfo elif not default: info = definfo icon = Gtk.STOCK_DIALOG_WARNING icon_size = Gtk.IconSize.LARGE_TOOLBAR row = [default, not can_del, path, target, bool(info), icon, icon_size, info] model.append(row) def prepare_storage_list(storage_list): # Checkbox, deleteable?, storage path, target (hda), icon stock, # icon size, tooltip model = Gtk.ListStore(bool, bool, str, str, bool, str, int, str) storage_list.set_model(model) try: storage_list.set_tooltip_column(STORAGE_ROW_TOOLTIP) except: # FIXME: use tooltip wrapper for this pass confirmCol = Gtk.TreeViewColumn() pathCol = Gtk.TreeViewColumn(_("Storage Path")) targetCol = Gtk.TreeViewColumn(_("Target")) infoCol = Gtk.TreeViewColumn() storage_list.append_column(confirmCol) storage_list.append_column(pathCol) storage_list.append_column(targetCol) storage_list.append_column(infoCol) chkbox = Gtk.CellRendererToggle() chkbox.connect('toggled', storage_item_toggled, storage_list) confirmCol.pack_start(chkbox, False) confirmCol.add_attribute(chkbox, 'active', STORAGE_ROW_CONFIRM) confirmCol.add_attribute(chkbox, 'inconsistent', STORAGE_ROW_CANT_DELETE) confirmCol.set_sort_column_id(STORAGE_ROW_CANT_DELETE) path_txt = Gtk.CellRendererText() pathCol.pack_start(path_txt, True) pathCol.add_attribute(path_txt, 'text', STORAGE_ROW_PATH) pathCol.set_sort_column_id(STORAGE_ROW_PATH) target_txt = Gtk.CellRendererText() targetCol.pack_start(target_txt, False) targetCol.add_attribute(target_txt, 'text', STORAGE_ROW_TARGET) targetCol.set_sort_column_id(STORAGE_ROW_TARGET) info_img = Gtk.CellRendererPixbuf() infoCol.pack_start(info_img, False) infoCol.add_attribute(info_img, 'visible', STORAGE_ROW_ICON_SHOW) infoCol.add_attribute(info_img, 'stock-id', STORAGE_ROW_ICON) infoCol.add_attribute(info_img, 'stock-size', STORAGE_ROW_ICON_SIZE) infoCol.set_sort_column_id(STORAGE_ROW_ICON) def storage_item_toggled(src, index, storage_list): active = src.get_active() model = storage_list.get_model() model[index][STORAGE_ROW_CONFIRM] = not active def can_delete(conn, vol, path): """Is the passed path even deleteable""" ret = True msg = None if vol: # Managed storage if (vol.get_pool().get_type() == virtinst.Storage.StoragePool.TYPE_ISCSI): msg = _("Cannot delete iscsi share.") else: if conn.is_remote(): msg = _("Cannot delete unmanaged remote storage.") elif not os.path.exists(path): msg = _("Path does not exist.") elif not os.access(os.path.dirname(path), os.W_OK): msg = _("No write access to parent directory.") elif stat.S_ISBLK(os.stat(path)[stat.ST_MODE]): msg = _("Cannot delete unmanaged block device.") if msg: ret = False return (ret, msg) def do_we_default(conn, vm_name, vol, path, ro, shared): """ Returns (do we delete by default?, info string if not)""" info = "" def append_str(str1, str2, delim="\n"): if not str2: return str1 if str1: str1 += delim str1 += str2 return str1 if ro: info = append_str(info, _("Storage is read-only.")) elif not vol and not os.access(path, os.W_OK): info = append_str(info, _("No write access to path.")) if shared: info = append_str(info, _("Storage is marked as shareable.")) try: names = virtinst.VirtualDisk.path_in_use_by(conn.vmm, path) if len(names) > 1: namestr = "" names.remove(vm_name) for name in names: namestr = append_str(namestr, name, delim="\n- ") info = append_str(info, _("Storage is in use by the following " "virtual machines:\n- %s " % namestr)) except Exception, e: logging.exception("Failed checking disk conflict: %s", str(e)) return (not info, info)