Диссертация Ғылыми кеңесші техника ғылымдарының докторы, профессор
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Диссертация Муслимова А.К.-конвертирован
Vievers бағдарламаның коды# Copyright (C) 2006-2008, 2015 Red Hat, Inc. # Copyright (C) 2006 Daniel P. Berrange # Copyright (C) 2010 Marc-Andre Lureau # This work is licensed under the GNU GPLv2. # See the COPYING file in the top-level directory. import logging import socket from gi.repository import Gdk from gi.repository import GObject import gi gi.require_version('GtkVnc', '2.0') from gi.repository import GtkVnc try: gi.require_version('SpiceClientGtk', '3.0') from gi.repository import SpiceClientGtk from gi.repository import SpiceClientGLib have_spice_gtk = True except (ValueError, ImportError): have_spice_gtk = False
################################## # VNC/Spice abstraction handling # ##################################
Base class for viewer abstraction """ gsignals = { "add-display-widget": (vmmGObject.RUN_FIRST, None, [object]), "size-allocate": (vmmGObject.RUN_FIRST, None, [object]), "focus-in-event": (vmmGObject.RUN_FIRST, None, [object]), "focus-out-event": (vmmGObject.RUN_FIRST, None, [object]), "pointer-grab": (vmmGObject.RUN_FIRST, None, []), "pointer-ungrab": (vmmGObject.RUN_FIRST, None, []), "connected": (vmmGObject.RUN_FIRST, None, []), "disconnected": (vmmGObject.RUN_FIRST, None, [str, str]), "auth-error": (vmmGObject.RUN_FIRST, None, [str, bool]), "auth-rejected": (vmmGObject.RUN_FIRST, None, [str]), "need-auth": (vmmGObject.RUN_FIRST, None, [bool, bool]), "agent-connected": (vmmGObject.RUN_FIRST, None, []), "usb-redirect-error": (vmmGObject.RUN_FIRST, None, [str]), }
self._ginfo = ginfo self._tunnels = SSHTunnels(self._ginfo) self.add_gsettings_handle( self.config.on_keys_combination_changed(self._refresh_grab_keys)) self.add_gsettings_handle( self.config.on_keyboard_grab_default_changed( self._refresh_keyboard_grab_default)) self.connect("add-display-widget", self._common_init) def _cleanup(self): self.close() if self._display: self._display.destroy() self._display = None self._vm = None self._tunnels.close_all() ######################## # Internal helper APIs # ########################
Helper for redirecting a signal from self._display out through the viewer """ def _proxy_signal(src, *args, **kwargs): ignore = src self.emit(new_signal, *args, **kwargs) return _proxy_signal def _common_init(self, ignore1, ignore2): self._refresh_grab_keys() self._refresh_keyboard_grab_default() self._display.connect("size-allocate", self._make_signal_proxy("size-allocate")) self._display.connect("focus-in-event", self._make_signal_proxy("focus-in-event")) self._display.connect("focus-out-event", self._make_signal_proxy("focus-out-event")) ######################### # Generic internal APIs # #########################
self._display.grab_focus() def _has_focus(self): return self._display and self._display.get_property("has-focus") def _set_size_request(self, *args, **kwargs): return self._display.set_size_request(*args, **kwargs) def _size_allocate(self, *args, **kwargs): return self._display.size_allocate(*args, **kwargs) def _get_visible(self): return self._display and self._display.get_visible() def _get_pixbuf(self): return self._display.get_pixbuf() def _get_fd_for_open(self): if self._ginfo.need_tunnel(): return self._tunnels.open_new()
# OpenGraphics only works for local libvirtd connections return None if self._ginfo.gtlsport and not self._ginfo.gport: # This makes spice loop requesting an fd. Disable until spice is # fixed: https://bugzilla.redhat.com/show_bug.cgi?id=1334071 return None if not self._vm.conn.check_support( self._vm.conn.SUPPORT_DOMAIN_OPEN_GRAPHICS): return None return self._vm.open_graphics_fd() def _open(self): if self._ginfo.bad_config(): raise RuntimeError(self._ginfo.bad_config())
self._open_fd(fd) else: self._open_host()
return self._display.get_grab_keys().as_string() def _emit_disconnected(self, errdetails=None): ssherr = self._tunnels.get_err_output() self.emit("disconnected", errdetails, ssherr) ####################################################### # Internal API that will be overwritten by subclasses # #######################################################
raise NotImplementedError() def _is_open(self): raise NotImplementedError() def _set_username(self, cred): raise NotImplementedError() def _set_password(self, cred): raise NotImplementedError() def _send_keys(self, keys): raise NotImplementedError() def _refresh_grab_keys(self): raise NotImplementedError() def _refresh_keyboard_grab_default(self): raise NotImplementedError() def _open_host(self): raise NotImplementedError() def _open_fd(self, fd): raise NotImplementedError() def _get_desktop_resolution(self): raise NotImplementedError() def _get_scaling(self): raise NotImplementedError() def _set_scaling(self, scaling): raise NotImplementedError()
def _get_resizeguest(self): raise NotImplementedError() def _get_usb_widget(self): raise NotImplementedError() def _has_usb_redirection(self): raise NotImplementedError() def _has_agent(self): raise NotImplementedError() #################################### # APIs accessed by vmmConsolePages # #################################### def console_is_open(self): return self._is_open() def console_grab_focus(self): return self._grab_focus() def console_has_focus(self): return self._has_focus() def console_set_size_request(self, *args, **kwargs): return self._set_size_request(*args, **kwargs) def console_size_allocate(self, *args, **kwargs): return self._size_allocate(*args, **kwargs) def console_get_visible(self): return self._get_visible()
def console_set_username(self, val): return self._set_username(val) def console_send_keys(self, keys): return self._send_keys(keys) def console_get_grab_keys(self): return self._get_grab_keys() def console_get_desktop_resolution(self): ret = self._get_desktop_resolution() if not ret: return ret # Don't pass on bogus resolutions if (ret[0] == 0) or (ret[1] == 0): return None return ret def console_get_scaling(self): return self._get_scaling() def console_set_scaling(self, val): return self._set_scaling(val) def console_get_resizeguest(self): return self._get_resizeguest() def console_set_resizeguest(self, val): return self._set_resizeguest(val) def console_get_usb_widget(self): return self._get_usb_widget() def console_has_usb_redirection(self): return self._has_usb_redirection() def console_has_agent(self): return self._has_agent()
if self._display and self._display in widget.get_children(): widget.remove(self._display) #################### # VNC viewer class # #################### class VNCViewer(Viewer): viewer_type = "vnc" def init (self, *args, **kwargs): Viewer. init (self, *args, **kwargs) self._display = None self._sockfd = None self._desktop_resolution = None ################### # Private helpers # ################### def _init_widget(self): self._display = GtkVnc.Display() # Make sure viewer doesn't force resize itself self._display.set_force_size(False) self._display.set_pointer_grab(True) self.emit("add-display-widget", self._display) self._display.realize() self._display.connect("vnc-pointer-grab", self._make_signal_proxy("pointer-grab")) self._display.connect("vnc-pointer-ungrab", self._make_signal_proxy("pointer-ungrab")) self._display.connect("vnc-auth-credential", self._auth_credential) self._display.connect("vnc-auth-failure", self._auth_failure_cb) self._display.connect("vnc-initialized", self._connected_cb) self._display.connect("vnc-disconnected", self._disconnected_cb) self._display.connect("vnc-desktop-resize", self._desktop_resize) self._display.show() def _connected_cb(self, ignore): self._tunnels.unlock() self.emit("connected") def _disconnected_cb(self, ignore): self._tunnels.unlock() self._emit_disconnected() def _desktop_resize(self, src_ignore, w, h): self._desktop_resolution = (w, h) # Queue a resize self.emit("size-allocate", None) def _auth_failure_cb(self, ignore, msg): logging.debug("VNC auth failure. msg=%s", msg) self.emit("auth-error", msg, True) def _auth_credential(self, src_ignore, credList): values = [] for idx in range(int(credList.n_values)): values.append(credList.get_nth(idx)) for cred in values: if cred in [GtkVnc.DisplayCredential.PASSWORD, GtkVnc.DisplayCredential.USERNAME, GtkVnc.DisplayCredential.CLIENTNAME]: continue errmsg = (_("Unable to provide requested credentials to the VNC " "server.\n The credential type %s is not supported") % str(cred.value_name)) self.emit("auth-rejected", errmsg) return withUsername = False withPassword = False for cred in values: logging.debug("Got credential request %s", cred) if cred == GtkVnc.DisplayCredential.PASSWORD: withPassword = True elif cred == GtkVnc.DisplayCredential.USERNAME: withUsername = True elif cred == GtkVnc.DisplayCredential.CLIENTNAME: self._display.set_credential(cred, "libvirt-vnc")
self.emit("need-auth", withPassword, withUsername) ############################### # Private API implementations # ############################### def close(self): self._display.close() if self._sockfd: self._sockfd.close() self._sockfd = None def _is_open(self): return self._display.is_open() def _get_scaling(self): return self._display.get_scaling() def _set_scaling(self, scaling): return self._display.set_scaling(scaling)
return self._display.get_grab_keys().as_string() def _refresh_grab_keys(self): if not self._display: return
keys = self.config.get_keys_combination() if not keys: return
try: keys = [int(k) for k in keys.split(',')] except Exception: logging.debug("Error in grab_keys configuration in Gsettings", exc_info=True) return
except Exception as e: logging.debug("Error when getting the grab keys combination: %s", str(e)) def _send_keys(self, keys): return self._display.send_keys([Gdk.keyval_from_name(k) for k in keys]) def _refresh_keyboard_grab_default(self): if not self._display: return self._display.set_keyboard_grab(self.config.get_keyboard_grab_default()) def _get_desktop_resolution(self): return self._desktop_resolution def _set_username(self, cred): self._display.set_credential(GtkVnc.DisplayCredential.USERNAME, cred) def _set_password(self, cred): self._display.set_credential(GtkVnc.DisplayCredential.PASSWORD, cred) def _set_resizeguest(self, val): ignore = val def _get_resizeguest(self): return False def _get_usb_widget(self): return None def _has_usb_redirection(self): return False def _has_agent(self): return False ####################### # Connection routines # #######################
return Viewer._open(self) def _open_host(self): host, port, ignore = self._ginfo.get_conn_host() if not self._ginfo.gsocket: logging.debug("VNC connecting to host=%s port=%s", host, port) self._display.open_host(host, port) return
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) sock.connect(self._ginfo.gsocket) self._sockfd = sock except Exception as e: raise RuntimeError(_("Error opening socket path '%s': %s") % (self._ginfo.gsocket, e)) fd = self._sockfd.fileno() if fd < 0: raise RuntimeError((_("Error opening socket path '%s'") % self._ginfo.gsocket) + " fd=%s" % fd) self._open_fd(fd)
###################### # Spice viewer class # ######################
self._audio = None self._main_channel = None self._main_channel_hids = [] self._display_channel = None self._usbdev_manager = None ################### # Private helpers # ################### def _init_widget(self): self.emit("add-display-widget", self._display) self._display.realize() self._display.connect("mouse-grab", self._mouse_grab_event) self._display.show() def _mouse_grab_event(self, ignore, grab): if grab: self.emit("pointer-grab") else: self.emit("pointer-ungrab")
for i in self._main_channel_hids: self._main_channel.handler_disconnect(i) self._main_channel_hids = [] self._main_channel = None
SpiceClientGLib.set_session_option(self._spice_session) gtk_session = SpiceClientGtk.GtkSession.get(self._spice_session) gtk_session.set_property("auto-clipboard", True) GObject.GObject.connect(self._spice_session, "channel-new", self._channel_new_cb) # Distros might have usb redirection compiled out, like OpenBSD # https://bugzilla.redhat.com/show_bug.cgi?id=1348479 try:
self._usbdev_manager = SpiceClientGLib.UsbDeviceManager.get( self._spice_session) self._usbdev_manager.connect("auto-connect-failed", self._usbdev_redirect_error) self._usbdev_manager.connect("device-error", self._usbdev_redirect_error) autoredir = self.config.get_auto_usbredir() if autoredir: gtk_session.set_property("auto-usbredir", True) except Exception: self._usbdev_manager = None logging.debug("Error initializing spice usb device manager", exc_info=True) ##################### # Channel listeners # ##################### def _main_channel_event_cb(self, channel, event): self._tunnels.unlock() if event == SpiceClientGLib.ChannelEvent.CLOSED: self._emit_disconnected() elif event == SpiceClientGLib.ChannelEvent.ERROR_AUTH: if not self._spice_session.get_property("password"): logging.debug("Spice channel received ERROR_AUTH, but no " "password set, assuming it wants credentials.") self.emit("need-auth", True, False) else: logging.debug("Spice channel received ERROR_AUTH, but a " "password is already set. Assuming authentication failed.") self.emit("auth-error", channel.get_error().message, False) elif "ERROR" in str(event): # SpiceClientGLib.ChannelEvent.ERROR_CONNECT # SpiceClientGLib.ChannelEvent.ERROR_IO # SpiceClientGLib.ChannelEvent.ERROR_LINK # SpiceClientGLib.ChannelEvent.ERROR_TLS error = None if channel.get_error(): error = channel.get_error().message logging.debug("Spice channel event=%s message=%s", event, error)
if error: msg += ": %s" % error self._emit_disconnected(msg)
# When we see any event from the channel, release the # associated tunnel lock channel.disconnect_by_func(self._fd_channel_event_cb) self._tunnels.unlock() def _channel_open_fd_request(self, channel, tls_ignore): if not self._tunnels: # Can happen if we close the details window and clear self._tunnels # while initially connecting to spice and channel FD requests # are still rolling in return
self._channel_open_fd_request) if (isinstance(channel, SpiceClientGLib.MainChannel) and not self._main_channel): self._main_channel = channel hid = self._main_channel.connect_after("channel-event", self._main_channel_event_cb) self._main_channel_hids.append(hid) hid = self._main_channel.connect_after("notify::agent-connected", self._agent_connected_cb) self._main_channel_hids.append(hid) elif (type(channel) == SpiceClientGLib.DisplayChannel and not self._display): channel_id = channel.get_property("channel-id") if channel_id != 0: logging.debug("Spice multi-head unsupported") return self._display_channel = channel self._display = SpiceClientGtk.Display.new(self._spice_session, channel_id) self._init_widget() self.emit("connected")
SpiceClientGLib.RecordChannel] and not self._audio): self._audio = SpiceClientGLib.Audio.get(self._spice_session, None)
################################ # Internal API implementations # ################################
if self._spice_session is not None: self._spice_session.disconnect() self._spice_session = None self._audio = None if self._display: self._display.destroy() self._display = None self._display_channel = None
return self._spice_session is not None def _refresh_grab_keys(self): if not self._display: return
try: keys = self.config.get_keys_combination() if not keys: return
keys = [int(k) for k in keys.split(',')] except Exception: logging.debug("Error in grab_keys configuration in Gsettings", exc_info=True) return
except Exception as e: logging.debug("Error when getting the grab keys combination: %s", str(e)) def _send_keys(self, keys): return self._display.send_keys([Gdk.keyval_from_name(k) for k in keys], SpiceClientGtk.DisplayKeyEvent.CLICK) def _refresh_keyboard_grab_default(self): if not self._display: return
self._display.set_property("grab-keyboard", self.config.get_keyboard_grab_default()) def _get_desktop_resolution(self): if not self._display_channel: return None return self._display_channel.get_properties("width", "height")
if not self._main_channel: return False return self._main_channel.get_property("agent-connected")
host, port, tlsport = self._ginfo.get_conn_host() self._create_spice_session() logging.debug("Spice connecting to host=%s port=%s tlsport=%s", host, port, tlsport) self._spice_session.set_property("host", str(host)) if port: self._spice_session.set_property("port", str(port)) if tlsport: self._spice_session.set_property("tls-port", str(tlsport)) self._spice_session.connect() def _open_fd(self, fd): self._create_spice_session() self._spice_session.open_fd(fd)
def _set_password(self, cred): self._spice_session.set_property("password", cred) fd = self._get_fd_for_open() if fd is not None: self._spice_session.open_fd(fd) else:
self._spice_session.connect() def _get_scaling(self): return self._display.get_property("scaling") def _set_scaling(self, scaling): self._display.set_property("scaling", scaling)
self._display.set_property("resize-guest", val) def _get_resizeguest(self): if self._display: return self._display.get_property("resize-guest") return False def _usbdev_redirect_error(self, spice_usbdev_widget, spice_usb_device, errstr): ignore = spice_usbdev_widget ignore = spice_usb_device self.emit("usb-redirect-error", errstr) def _get_usb_widget(self): if not self._spice_session: return usbwidget = SpiceClientGtk.UsbDeviceWidget.new(self._spice_session, None) usbwidget.connect("connect-failed", self._usbdev_redirect_error) return usbwidget def _has_usb_redirection(self): if not self._spice_session or not self._usbdev_manager: return False for c in self._spice_session.get_channels(): if c. class is SpiceClientGLib.UsbredirChannel: return True return False
жүктеу/скачать 10,27 Mb. Достарыңызбен бөлісу:
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