777 lines
25 KiB
Python
777 lines
25 KiB
Python
#
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# Copyright (C) 2006-2008, 2015 Red Hat, Inc.
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# Copyright (C) 2006 Daniel P. Berrange <berrange@redhat.com>
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# Copyright (C) 2010 Marc-Andre Lureau <marcandre.lureau@redhat.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301 USA.
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#
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import logging
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import socket
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from gi.repository import Gdk
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from gi.repository import GObject
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import gi
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gi.require_version('GtkVnc', '2.0')
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from gi.repository import GtkVnc
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try:
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gi.require_version('SpiceClientGtk', '3.0')
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from gi.repository import SpiceClientGtk
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from gi.repository import SpiceClientGLib
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have_spice_gtk = True
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except (ValueError, ImportError):
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have_spice_gtk = False
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from .baseclass import vmmGObject
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from .sshtunnels import SSHTunnels
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##################################
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# VNC/Spice abstraction handling #
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##################################
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class Viewer(vmmGObject):
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"""
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Base class for viewer abstraction
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"""
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__gsignals__ = {
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"add-display-widget": (vmmGObject.RUN_FIRST, None, [object]),
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"size-allocate": (vmmGObject.RUN_FIRST, None, [object]),
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"focus-in-event": (vmmGObject.RUN_FIRST, None, [object]),
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"focus-out-event": (vmmGObject.RUN_FIRST, None, [object]),
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"pointer-grab": (vmmGObject.RUN_FIRST, None, []),
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"pointer-ungrab": (vmmGObject.RUN_FIRST, None, []),
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"connected": (vmmGObject.RUN_FIRST, None, []),
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"disconnected": (vmmGObject.RUN_FIRST, None, [str, str]),
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"auth-error": (vmmGObject.RUN_FIRST, None, [str, bool]),
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"auth-rejected": (vmmGObject.RUN_FIRST, None, [str]),
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"need-auth": (vmmGObject.RUN_FIRST, None, [bool, bool]),
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"agent-connected": (vmmGObject.RUN_FIRST, None, []),
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"usb-redirect-error": (vmmGObject.RUN_FIRST, None, [str]),
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}
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def __init__(self, vm, ginfo):
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vmmGObject.__init__(self)
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self._display = None
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self._vm = vm
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self._ginfo = ginfo
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self._tunnels = SSHTunnels(self._ginfo)
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self.add_gsettings_handle(
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self.config.on_keys_combination_changed(self._refresh_grab_keys))
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self.add_gsettings_handle(
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self.config.on_keyboard_grab_default_changed(
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self._refresh_keyboard_grab_default))
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self.connect("add-display-widget", self._common_init)
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def _cleanup(self):
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self.close()
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if self._display:
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self._display.destroy()
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self._display = None
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self._vm = None
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self._tunnels.close_all()
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########################
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# Internal helper APIs #
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########################
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def _make_signal_proxy(self, new_signal):
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"""
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Helper for redirecting a signal from self._display out
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through the viewer
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"""
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def _proxy_signal(src, *args, **kwargs):
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ignore = src
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self.emit(new_signal, *args, **kwargs)
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return _proxy_signal
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def _common_init(self, ignore1, ignore2):
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self._refresh_grab_keys()
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self._refresh_keyboard_grab_default()
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self._display.connect("size-allocate",
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self._make_signal_proxy("size-allocate"))
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self._display.connect("focus-in-event",
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self._make_signal_proxy("focus-in-event"))
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self._display.connect("focus-out-event",
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self._make_signal_proxy("focus-out-event"))
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#########################
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# Generic internal APIs #
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#########################
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def _grab_focus(self):
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if self._display:
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self._display.grab_focus()
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def _has_focus(self):
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return self._display and self._display.get_property("has-focus")
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def _set_size_request(self, *args, **kwargs):
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return self._display.set_size_request(*args, **kwargs)
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def _size_allocate(self, *args, **kwargs):
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return self._display.size_allocate(*args, **kwargs)
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def _get_visible(self):
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return self._display and self._display.get_visible()
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def _get_pixbuf(self):
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return self._display.get_pixbuf()
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def _get_fd_for_open(self):
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if self._ginfo.need_tunnel():
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return self._tunnels.open_new()
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if self._vm.conn.is_remote():
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# OpenGraphics only works for local libvirtd connections
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return None
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if self._ginfo.gtlsport and not self._ginfo.gport:
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# This makes spice loop requesting an fd. Disable until spice is
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# fixed: https://bugzilla.redhat.com/show_bug.cgi?id=1334071
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return None
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if not self._vm.conn.check_support(
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self._vm.conn.SUPPORT_DOMAIN_OPEN_GRAPHICS):
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return None
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return self._vm.open_graphics_fd()
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def _open(self):
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if self._ginfo.bad_config():
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raise RuntimeError(self._ginfo.bad_config())
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fd = self._get_fd_for_open()
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if fd is not None:
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self._open_fd(fd)
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else:
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self._open_host()
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def _get_grab_keys(self):
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return self._display.get_grab_keys().as_string()
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def _emit_disconnected(self, errdetails=None):
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ssherr = self._tunnels.get_err_output()
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self.emit("disconnected", errdetails, ssherr)
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#######################################################
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# Internal API that will be overwritten by subclasses #
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#######################################################
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def close(self):
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raise NotImplementedError()
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def _is_open(self):
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raise NotImplementedError()
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def _set_username(self, cred):
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raise NotImplementedError()
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def _set_password(self, cred):
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raise NotImplementedError()
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def _send_keys(self, keys):
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raise NotImplementedError()
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def _refresh_grab_keys(self):
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raise NotImplementedError()
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def _refresh_keyboard_grab_default(self):
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raise NotImplementedError()
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def _open_host(self):
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raise NotImplementedError()
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def _open_fd(self, fd):
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raise NotImplementedError()
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def _get_desktop_resolution(self):
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raise NotImplementedError()
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def _get_scaling(self):
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raise NotImplementedError()
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def _set_scaling(self, scaling):
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raise NotImplementedError()
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def _set_resizeguest(self, val):
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raise NotImplementedError()
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def _get_resizeguest(self):
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raise NotImplementedError()
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def _get_usb_widget(self):
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raise NotImplementedError()
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def _has_usb_redirection(self):
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raise NotImplementedError()
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def _has_agent(self):
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raise NotImplementedError()
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####################################
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# APIs accessed by vmmConsolePages #
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####################################
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def console_is_open(self):
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return self._is_open()
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def console_grab_focus(self):
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return self._grab_focus()
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def console_has_focus(self):
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return self._has_focus()
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def console_set_size_request(self, *args, **kwargs):
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return self._set_size_request(*args, **kwargs)
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def console_size_allocate(self, *args, **kwargs):
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return self._size_allocate(*args, **kwargs)
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def console_get_visible(self):
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return self._get_visible()
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def console_get_pixbuf(self):
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return self._get_pixbuf()
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def console_open(self):
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return self._open()
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def console_set_password(self, val):
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return self._set_password(val)
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def console_set_username(self, val):
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return self._set_username(val)
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def console_send_keys(self, keys):
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return self._send_keys(keys)
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def console_get_grab_keys(self):
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return self._get_grab_keys()
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def console_get_desktop_resolution(self):
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ret = self._get_desktop_resolution()
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if not ret:
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return ret
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# Don't pass on bogus resolutions
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if (ret[0] == 0) or (ret[1] == 0):
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return None
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return ret
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def console_get_scaling(self):
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return self._get_scaling()
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def console_set_scaling(self, val):
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return self._set_scaling(val)
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def console_get_resizeguest(self):
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return self._get_resizeguest()
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def console_set_resizeguest(self, val):
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return self._set_resizeguest(val)
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def console_get_usb_widget(self):
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return self._get_usb_widget()
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def console_has_usb_redirection(self):
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return self._has_usb_redirection()
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def console_has_agent(self):
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return self._has_agent()
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def console_remove_display_from_widget(self, widget):
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if self._display and self._display in widget.get_children():
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widget.remove(self._display)
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####################
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# VNC viewer class #
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####################
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class VNCViewer(Viewer):
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viewer_type = "vnc"
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def __init__(self, *args, **kwargs):
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Viewer.__init__(self, *args, **kwargs)
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self._display = None
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self._sockfd = None
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self._desktop_resolution = None
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###################
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# Private helpers #
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###################
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def _init_widget(self):
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self._display = GtkVnc.Display()
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# Make sure viewer doesn't force resize itself
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self._display.set_force_size(False)
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self._display.set_pointer_grab(True)
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self.emit("add-display-widget", self._display)
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self._display.realize()
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self._display.connect("vnc-pointer-grab",
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self._make_signal_proxy("pointer-grab"))
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self._display.connect("vnc-pointer-ungrab",
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self._make_signal_proxy("pointer-ungrab"))
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self._display.connect("vnc-auth-credential", self._auth_credential)
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self._display.connect("vnc-auth-failure", self._auth_failure_cb)
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self._display.connect("vnc-initialized", self._connected_cb)
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self._display.connect("vnc-disconnected", self._disconnected_cb)
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self._display.connect("vnc-desktop-resize", self._desktop_resize)
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self._display.show()
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def _connected_cb(self, ignore):
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self._tunnels.unlock()
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self.emit("connected")
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def _disconnected_cb(self, ignore):
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self._tunnels.unlock()
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self._emit_disconnected()
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def _desktop_resize(self, src_ignore, w, h):
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self._desktop_resolution = (w, h)
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# Queue a resize
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self.emit("size-allocate", None)
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def _auth_failure_cb(self, ignore, msg):
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logging.debug("VNC auth failure. msg=%s", msg)
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self.emit("auth-error", msg, True)
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def _auth_credential(self, src_ignore, credList):
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values = []
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for idx in range(int(credList.n_values)):
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values.append(credList.get_nth(idx))
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for cred in values:
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if cred in [GtkVnc.DisplayCredential.PASSWORD,
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GtkVnc.DisplayCredential.USERNAME,
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GtkVnc.DisplayCredential.CLIENTNAME]:
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continue
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errmsg = (_("Unable to provide requested credentials to the VNC "
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"server.\n The credential type %s is not supported") %
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str(cred.value_name))
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self.emit("auth-rejected", errmsg)
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return
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withUsername = False
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withPassword = False
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for cred in values:
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logging.debug("Got credential request %s", cred)
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if cred == GtkVnc.DisplayCredential.PASSWORD:
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withPassword = True
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elif cred == GtkVnc.DisplayCredential.USERNAME:
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withUsername = True
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elif cred == GtkVnc.DisplayCredential.CLIENTNAME:
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self._display.set_credential(cred, "libvirt-vnc")
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if withUsername or withPassword:
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self.emit("need-auth", withPassword, withUsername)
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###############################
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# Private API implementations #
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###############################
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def close(self):
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self._display.close()
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if self._sockfd:
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self._sockfd.close()
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self._sockfd = None
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def _is_open(self):
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return self._display.is_open()
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def _get_scaling(self):
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return self._display.get_scaling()
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def _set_scaling(self, scaling):
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return self._display.set_scaling(scaling)
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def _get_grab_keys(self):
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return self._display.get_grab_keys().as_string()
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def _refresh_grab_keys(self):
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if not self._display:
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return
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try:
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keys = self.config.get_keys_combination()
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if not keys:
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return
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try:
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keys = [int(k) for k in keys.split(',')]
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except Exception:
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logging.debug("Error in grab_keys configuration in Gsettings",
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exc_info=True)
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return
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seq = GtkVnc.GrabSequence.new(keys)
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self._display.set_grab_keys(seq)
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except Exception as e:
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logging.debug("Error when getting the grab keys combination: %s",
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str(e))
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def _send_keys(self, keys):
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return self._display.send_keys([Gdk.keyval_from_name(k) for k in keys])
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def _refresh_keyboard_grab_default(self):
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if not self._display:
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return
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self._display.set_keyboard_grab(self.config.get_keyboard_grab_default())
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def _get_desktop_resolution(self):
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return self._desktop_resolution
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def _set_username(self, cred):
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self._display.set_credential(GtkVnc.DisplayCredential.USERNAME, cred)
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def _set_password(self, cred):
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self._display.set_credential(GtkVnc.DisplayCredential.PASSWORD, cred)
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def _set_resizeguest(self, val):
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ignore = val
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def _get_resizeguest(self):
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return False
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def _get_usb_widget(self):
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return None
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def _has_usb_redirection(self):
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return False
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def _has_agent(self):
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return False
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#######################
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# Connection routines #
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#######################
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def _open(self):
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self._init_widget()
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return Viewer._open(self)
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def _open_host(self):
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host, port, ignore = self._ginfo.get_conn_host()
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if not self._ginfo.gsocket:
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logging.debug("VNC connecting to host=%s port=%s", host, port)
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self._display.open_host(host, port)
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return
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logging.debug("VNC connecting to socket=%s", self._ginfo.gsocket)
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try:
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sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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sock.connect(self._ginfo.gsocket)
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self._sockfd = sock
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except Exception as e:
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raise RuntimeError(_("Error opening socket path '%s': %s") %
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(self._ginfo.gsocket, e))
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fd = self._sockfd.fileno()
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if fd < 0:
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raise RuntimeError((_("Error opening socket path '%s'") %
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self._ginfo.gsocket) + " fd=%s" % fd)
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self._open_fd(fd)
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def _open_fd(self, fd):
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self._display.open_fd(fd)
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######################
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# Spice viewer class #
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######################
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class SpiceViewer(Viewer):
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viewer_type = "spice"
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def __init__(self, *args, **kwargs):
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Viewer.__init__(self, *args, **kwargs)
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self._spice_session = None
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self._display = None
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self._audio = None
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self._main_channel = None
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self._main_channel_hids = []
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self._display_channel = None
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self._usbdev_manager = None
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###################
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# Private helpers #
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###################
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def _init_widget(self):
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self.emit("add-display-widget", self._display)
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self._display.realize()
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self._display.connect("mouse-grab", self._mouse_grab_event)
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self._display.show()
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def _mouse_grab_event(self, ignore, grab):
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if grab:
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self.emit("pointer-grab")
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else:
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self.emit("pointer-ungrab")
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def _close_main_channel(self):
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for i in self._main_channel_hids:
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self._main_channel.handler_disconnect(i)
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self._main_channel_hids = []
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self._main_channel = None
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def _create_spice_session(self):
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self._spice_session = SpiceClientGLib.Session()
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SpiceClientGLib.set_session_option(self._spice_session)
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gtk_session = SpiceClientGtk.GtkSession.get(self._spice_session)
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gtk_session.set_property("auto-clipboard", True)
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GObject.GObject.connect(self._spice_session, "channel-new",
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self._channel_new_cb)
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# 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_redirection()
|
|
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)
|
|
|
|
msg = _("Encountered SPICE %(error-name)s") % {
|
|
"error-name": event.value_nick}
|
|
if error:
|
|
msg += ": %s" % error
|
|
self._emit_disconnected(msg)
|
|
|
|
def _fd_channel_event_cb(self, channel, event):
|
|
# 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
|
|
|
|
logging.debug("Requesting fd for channel: %s", channel)
|
|
channel.connect_after("channel-event", self._fd_channel_event_cb)
|
|
|
|
fd = self._get_fd_for_open()
|
|
channel.open_fd(fd)
|
|
|
|
def _channel_new_cb(self, session, channel):
|
|
GObject.GObject.connect(channel, "open-fd",
|
|
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")
|
|
|
|
elif (type(channel) in [SpiceClientGLib.PlaybackChannel,
|
|
SpiceClientGLib.RecordChannel] and
|
|
not self._audio):
|
|
self._audio = SpiceClientGLib.Audio.get(self._spice_session, None)
|
|
|
|
def _agent_connected_cb(self, src, val):
|
|
self.emit("agent-connected")
|
|
|
|
|
|
################################
|
|
# Internal API implementations #
|
|
################################
|
|
|
|
def close(self):
|
|
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
|
|
|
|
self._close_main_channel()
|
|
self._usbdev_manager = None
|
|
|
|
def _is_open(self):
|
|
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
|
|
|
|
try:
|
|
keys = [int(k) for k in keys.split(',')]
|
|
except Exception:
|
|
logging.debug("Error in grab_keys configuration in Gsettings",
|
|
exc_info=True)
|
|
return
|
|
|
|
seq = SpiceClientGtk.GrabSequence.new(keys)
|
|
self._display.set_grab_keys(seq)
|
|
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")
|
|
|
|
def _has_agent(self):
|
|
if not self._main_channel:
|
|
return False
|
|
return self._main_channel.get_property("agent-connected")
|
|
|
|
def _open_host(self):
|
|
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_username(self, cred):
|
|
ignore = cred
|
|
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)
|
|
|
|
def _set_resizeguest(self, val):
|
|
if self._display:
|
|
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
|