/usr/share/pyshared/x2go/registry.py is in python-x2go 0.1.1.8-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 | # -*- coding: utf-8 -*-
# Copyright (C) 2010-2011 by Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
#
# Python X2go 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 3 of the License, or
# (at your option) any later version.
#
# Python X2go 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 St, Fifth Floor, Boston, MA 02110-1301, USA.
"""\
X2goSessionRegistry class - the X2goClient's session registry backend
"""
__NAME__ = 'x2gosessregistry-pylib'
import os
import copy
import types
import uuid
import time
import threading
# Python X2go modules
import log
import utils
import session
from x2go_exceptions import *
# import the default terminal session backend
from x2go.backends.control import X2goControlSession as _X2goControlSession
from x2go.backends.terminal import X2goTerminalSession as _X2goTerminalSession
from x2go.backends.info import X2goServerSessionInfo as _X2goServerSessionInfo
from x2go.backends.info import X2goServerSessionList as _X2goServerSessionList
from x2go.backends.proxy import X2goProxy as _X2goProxy
from x2go.backends.settings import X2goClientSettings as _X2goClientSettings
from x2go.backends.printing import X2goClientPrinting as _X2goClientPrinting
from defaults import LOCAL_HOME as _LOCAL_HOME
from defaults import X2GO_CLIENT_ROOTDIR as _X2GO_CLIENT_ROOTDIR
from defaults import X2GO_SESSIONS_ROOTDIR as _X2GO_SESSIONS_ROOTDIR
from defaults import X2GO_SSH_ROOTDIR as _X2GO_SSH_ROOTDIR
class X2goSessionRegistry(object):
"""\
This class is utilized by L{X2goClient} instances to maintain a good overview on
session status of all associated L{X2goSession} instances.
"""
def __init__(self, client_instance,
logger=None, loglevel=log.loglevel_DEFAULT):
"""\
@param client_instance: the L{X2goClient} instance that instantiated this L{X2goSessionRegistry} instance.
@type client_instance: L{X2goClient} instance
@param logger: you can pass an L{X2goLogger} object to the L{X2goClientXConfig} constructor
@type logger: C{instance}
@param loglevel: if no L{X2goLogger} object has been supplied a new one will be
constructed with the given loglevel
@type loglevel: C{int}
"""
if logger is None:
self.logger = log.X2goLogger(loglevel=loglevel)
else:
self.logger = copy.deepcopy(logger)
self.logger.tag = __NAME__
self.client_instance = client_instance
self.registry = {}
self.control_sessions = {}
self._last_available_session_registration = None
self._skip_auto_registration = False
def keys(self):
"""\
A list of session registry keys.
@return: session registry key list
@rtype: C{list}
"""
return self.registry.keys()
def __repr__(self):
result = 'X2goSessionRegistry('
for p in dir(self):
if '__' in p or not p in self.__dict__ or type(p) is types.InstanceType: continue
result += p + '=' + str(self.__dict__[p])
return result + ')'
def __call__(self, session_uuid):
"""\
Returns the L{X2goSession} instance for a given session UUID hash.
@param session_uuid: the X2go session's UUID registry hash
@type session_uuid: C{str}
@return: the corresponding L{X2goSession} instance
@rtype: L{X2goSession} instance
"""
try:
return self.registry[session_uuid]
except KeyError:
raise X2goSessionRegistryException('No session found for UUID %s' % session_uuid)
def disable_session_auto_registration(self):
"""\
This method is used to temporarily skip auto-registration of newly appearing
X2go session on the server side. This is necessary during session startups to
assure that the session registry does not get filled with session UUID
duplicates.
"""
self._skip_auto_registration = True
def enable_session_auto_registration(self):
"""\
This method is used to temporarily (re-)enable auto-registration of newly appearing
X2go session on the server side.
"""
self._skip_auto_registration = False
def forget(self, session_uuid):
"""\
Forget the complete record for session UUID C{session_uuid}.
@param session_uuid: the X2go session's UUID registry hash
@type session_uuid: C{str}
"""
try:
del self.registry[session_uuid]
self.logger('Forgetting session UUID %s' % session_uuid, loglevel=log.loglevel_DEBUG)
except KeyError:
pass
def get_profile_id(self, session_uuid):
"""\
Retrieve the profile ID of a given session UUID hash.
@param session_uuid: the X2go session's UUID registry hash
@type session_uuid: C{str}
@return: profile ID
@rtype: C{str}
"""
return self(session_uuid).get_profile_id()
def get_profile_name(self, session_uuid):
"""\
Retrieve the profile name of a given session UUID hash.
@param session_uuid: the X2go session's UUID registry hash
@type session_uuid: C{str}
@return: profile name
@rtype: C{str}
"""
return self(session_uuid).get_profile_name()
def session_summary(self, session_uuid, status_only=False):
"""\
Compose a session summary (as Python dictionary).
@param session_uuid: the X2go session's UUID registry hash
@type session_uuid: C{str}
@return: session summary dictionary
@rtype: C{dict}
"""
_session_summary = {}
_r = False
if session_uuid in [ s() for s in self.registered_sessions() ]:
_r = True
if not status_only:
_session_summary['uuid'] = _r and session_uuid or None
_session_summary['profile_id'] = _r and self.get_profile_id(session_uuid) or ''
_session_summary['profile_name'] = _r and self.get_profile_name(session_uuid) or ''
_session_summary['session_name'] = _r and self(session_uuid).get_session_name() or ''
_session_summary['control_session'] = _r and self(session_uuid).get_control_session() or None
_session_summary['control_params'] = _r and self(session_uuid).control_params or {}
_session_summary['terminal_session'] = _r and self(session_uuid).get_terminal_session() or None
_session_summary['terminal_params'] = _r and self(session_uuid).terminal_params or {}
_session_summary['active_threads'] = _r and bool(self(session_uuid).get_terminal_session()) and self(session_uuid).get_terminal_session().active_threads or []
_session_summary['backends'] = {
'control': _r and self(session_uuid).control_backend or None,
'terminal': _r and self(session_uuid).terminal_backend or None,
'info': _r and self(session_uuid).info_backend or None,
'list': _r and self(session_uuid).list_backend or None,
'proxy': _r and self(session_uuid).proxy_backend or None,
}
if _r:
_session_summary['virgin'] = self(session_uuid).virgin
_session_summary['connected'] = self(session_uuid).connected
_session_summary['running'] = self(session_uuid).running
_session_summary['suspended'] = self(session_uuid).suspended
_session_summary['terminated'] = self(session_uuid).terminated
else:
_session_summary['virgin'] = None
_session_summary['connected'] = None
_session_summary['running'] = None
_session_summary['suspended'] = None
_session_summary['terminated'] = None
return _session_summary
def update_status(self, session_uuid=None, profile_name=None, profile_id=None, session_list=None, force_update=False, newly_connected=False):
"""\
Update the session status for L{X2goSession} that is represented by a given session UUID hash,
profile name or profile ID.
@param session_uuid: the X2go session's UUID registry hash
@type session_uuid: C{str}
@param profile_name: alternatively, a profile name can be specified (the stati of all registered sessions for this session
profile will be updated)
@type profile_name: C{str}
@param profile_id: alternatively, a profile ID can be given (the stati of all registered sessions for this session
profile will be updated)
@type profile_id: C{str}
@param session_list: an optional C{X2goServerSessionList*} instance (as returned by the L{X2goClient.list_sessions()} command can
be passed to this method.
@type session_list: C{X2goServerSessionList*} instance
@param force_update: make sure the session status gets really updated
@type force_update: C{bool}
"""
if session_uuid and profile_name or session_uuid and profile_id or profile_name and profile_id:
raise X2goSessionRegistryException('only one of the possible method parameters is allowed (session_uuid, profile_name or profile_id)')
elif session_uuid is None and profile_name is None and profile_id is None:
raise X2goSessionRegistryException('at least one of the method parameters session_uuid, profile_name or profile_id must be given')
if session_uuid:
session_uuids = [ session_uuid ]
elif profile_name:
session_uuids = [ s() for s in self.registered_sessions_of_profile_name(profile_name, return_objects=True) ]
elif profile_id:
session_uuids = [ s() for s in self.registered_sessions_of_profile_name(self.client_instance.to_profile_name(profile_id), return_objects=True) ]
for _session_uuid in session_uuids:
if not self(_session_uuid).update_status(session_list=session_list, force_update=force_update):
# skip this run, as nothing has changed since the last time...
return False
_last_status = copy.deepcopy(self(_session_uuid)._last_status)
_current_status = copy.deepcopy(self(_session_uuid)._current_status)
# at this point we hook into the X2goClient instance and call notification methods
# that can be used to inform an application that something has happened
_profile_name = self(_session_uuid).get_profile_name()
_session_name = self(_session_uuid).get_session_name()
if self(_session_uuid).get_server_hostname() != _current_status['server']:
# if the server (hostname) has changed due to a configuration change we skip all notifications
self(_session_uuid).session_cleanup()
self(_session_uuid).__del__()
if len(self.virgin_sessions_of_profile_name(profile_name)) > 1:
del self.registry[_session_uuid]
elif not _last_status['running'] and _current_status['running'] and not _current_status['faulty']:
# session has started
if newly_connected:
# from a suspended state
self.client_instance.HOOK_on_found_session_running_after_connect(session_uuid=_session_uuid, profile_name=_profile_name, session_name=_session_name)
else:
# explicitly ask for the terminal_session object directly here, so we also get 'PENDING' terminal sessions here...
if self(_session_uuid).terminal_session:
if _last_status['suspended']:
# from a suspended state
self.client_instance.HOOK_on_session_has_resumed_by_me(session_uuid=_session_uuid, profile_name=_profile_name, session_name=_session_name)
elif _last_status['virgin']:
# as a new session
self.client_instance.HOOK_on_session_has_started_by_me(session_uuid=_session_uuid, profile_name=_profile_name, session_name=_session_name)
else:
if _last_status['suspended']:
# from a suspended state
self.client_instance.HOOK_on_session_has_resumed_by_other(session_uuid=_session_uuid, profile_name=_profile_name, session_name=_session_name)
else:
# as a new session
self.client_instance.HOOK_on_session_has_started_by_other(session_uuid=_session_uuid, profile_name=_profile_name, session_name=_session_name)
elif _last_status['connected'] and (not _last_status['suspended'] and _current_status['suspended']) and not _current_status['faulty']:
# session has been suspended
self(_session_uuid).session_cleanup()
self.client_instance.HOOK_on_session_has_been_suspended(session_uuid=_session_uuid, profile_name=_profile_name, session_name=_session_name)
elif _last_status['connected'] and (not _last_status['terminated'] and _current_status['terminated']) and not _current_status['faulty']:
# session has terminated
self.client_instance.HOOK_on_session_has_terminated(session_uuid=_session_uuid, profile_name=_profile_name, session_name=_session_name)
try: self(_session_uuid).session_cleanup()
except X2goSessionException: pass
try: self(_session_uuid).__del__()
except X2goSessionException: pass
if len(self.virgin_sessions_of_profile_name(profile_name)) > 1:
self.forget(_session_uuid)
return True
def register_available_server_sessions(self, profile_name, session_list=None, newly_connected=False):
"""\
Register server-side available X2go sessions with this L{X2goSessionRegistry} instance for a given profile name.
@param profile_name: session profile name to register available X2go sessions for
@type profile_name: C{str}
@param session_list: an optional C{X2goServerSessionList*} instance (as returned by the L{X2goClient.list_sessions()} command can
be passed to this method.
@type session_list: C{X2goServerSessionList*} instance
"""
if self._last_available_session_registration is not None:
_now = time.time()
_time_delta = _now - self._last_available_session_registration
if _time_delta < 2:
self.logger('registration interval too short (%s), skipping automatic session registration...' % _timedelta, loglevel=log.loglevel_DEBUG)
return
self._last_available_session_registration = _now
_connected_sessions = self.connected_sessions_of_profile_name(profile_name=profile_name, return_objects=False)
_registered_sessions = self.registered_sessions_of_profile_name(profile_name=profile_name, return_objects=False)
_session_names = [ self(s_uuid).session_name for s_uuid in _registered_sessions if self(s_uuid).session_name is not None ]
if _connected_sessions:
# any of the connected sessions is valuable for accessing the profile's control
# session commands, so we simply take the first that comes in...
_ctrl_session = self(_connected_sessions[0])
if session_list is None:
session_list = _ctrl_session.list_sessions()
# make sure the session registry gets updated before registering new session
# (if the server name has changed, this will kick out obsolete X2goSessions)
self.update_status(profile_name=profile_name, session_list=session_list, force_update=True)
for session_name in session_list.keys():
if session_name not in _session_names and not self._skip_auto_registration:
server = _ctrl_session.get_server_hostname()
profile_id = _ctrl_session.get_profile_id()
# reconstruct all session options of _ctrl_session to auto-register a suspended session
# found on the _ctrl_session's connected server
_clone_kwargs = _ctrl_session.__dict__
kwargs = {}
kwargs.update(self.client_instance.session_profiles.to_session_params(profile_id))
kwargs['client_instance'] = self.client_instance
kwargs['control_backend'] = _clone_kwargs['control_backend']
kwargs['terminal_backend'] = _clone_kwargs['terminal_backend']
kwargs['proxy_backend'] = _clone_kwargs['proxy_backend']
kwargs['info_backend'] = _clone_kwargs['info_backend']
kwargs['list_backend'] = _clone_kwargs['list_backend']
kwargs['settings_backend'] = _clone_kwargs['settings_backend']
kwargs['printing_backend'] = _clone_kwargs['printing_backend']
kwargs['keep_controlsession_alive'] = _clone_kwargs['keep_controlsession_alive']
kwargs['client_rootdir'] = _clone_kwargs['client_rootdir']
kwargs['sessions_rootdir'] = _clone_kwargs['sessions_rootdir']
try: del kwargs['server']
except: pass
try: del kwargs['profile_name']
except: pass
try: del kwargs['profile_id']
except: pass
# this if clause catches problems when x2golistsessions commands give weird results
if not self.has_session_of_session_name(session_name):
session_uuid = self.register(server, profile_id, profile_name,
session_name=session_name, virgin=False,
**kwargs
)
self(session_uuid).connected = True
self.update_status(session_uuid=session_uuid, force_update=True, newly_connected=newly_connected)
def register(self, server, profile_id, profile_name,
session_name=None,
control_backend=_X2goControlSession,
terminal_backend=_X2goTerminalSession,
info_backend=_X2goServerSessionInfo,
list_backend=_X2goServerSessionList,
proxy_backend=_X2goProxy,
settings_backend=_X2goClientSettings,
printing_backend=_X2goClientPrinting,
client_rootdir=os.path.join(_LOCAL_HOME,_X2GO_CLIENT_ROOTDIR),
sessions_rootdir=os.path.join(_LOCAL_HOME,_X2GO_SESSIONS_ROOTDIR),
ssh_rootdir=os.path.join(_LOCAL_HOME,_X2GO_SSH_ROOTDIR),
keep_controlsession_alive=True,
add_to_known_hosts=False,
known_hosts=None,
**kwargs):
"""\
Register a new L{X2goSession} instance with this L{X2goSessionRegistry}.
@param server: hostname of X2go server
@type server: C{str}
@param profile_id: profile ID
@type profile_id: C{str}
@param profile_name: profile name
@type profile_name: C{str}
@param session_name: session name (if available)
@type session_name: C{str}
@param control_backend: X2go control session backend to use
@type control_backend: C{class}
@param terminal_backend: X2go terminal session backend to use
@type terminal_backend: C{class}
@param info_backend: X2go session info backend to use
@type info_backend: C{class}
@param list_backend: X2go session list backend to use
@type list_backend: C{class}
@param proxy_backend: X2go proxy backend to use
@type proxy_backend: C{class}
@param settings_backend: X2go client settings backend to use
@type settings_backend: C{class}
@param printing_backend: X2go client printing backend to use
@type printing_backend: C{class}
@param client_rootdir: client base dir (default: ~/.x2goclient)
@type client_rootdir: C{str}
@param sessions_rootdir: sessions base dir (default: ~/.x2go)
@type sessions_rootdir: C{str}
@param ssh_rootdir: ssh base dir (default: ~/.ssh)
@type ssh_rootdir: C{str}
@param keep_controlsession_alive: On last L{X2goSession.disconnect()} keep the associated C{X2goControlSession*} instance alive?
@ŧype keep_controlsession_alive: C{bool}
@param add_to_known_hosts: Auto-accept server host validity?
@type add_to_known_hosts: C{bool}
@param known_hosts: the underlying Paramiko/SSH systems C{known_hosts} file
@type known_hosts: C{str}
@param kwargs: all other options will be passed on to the constructor of the to-be-instantiated L{X2goSession} instance
@type C{dict}
"""
control_session = None
if profile_id in self.control_sessions.keys():
control_session = self.control_sessions[profile_id]
# when starting a new session, we will try to use unused registered virgin sessions
# depending on your application layout, there shoul either be one or no such virgin session at all
_virgin_sessions = self.virgin_sessions_of_profile_name(profile_name, return_objects=True)
if _virgin_sessions and not session_name:
session_uuid = _virgin_sessions[0].get_uuid()
_params = self.client_instance.session_profiles.to_session_params(profile_id)
self(session_uuid).update_params(_params)
self(session_uuid).set_server(server)
self(session_uuid).set_profile_name(profile_name)
self.logger('using already initially-registered yet-unused session %s' % session_uuid, loglevel=log.loglevel_NOTICE)
return session_uuid
session_uuid = self.get_session_of_session_name(session_name)
if session_uuid is not None:
_params = self.client_instance.session_profiles.to_session_params(profile_id)
self(session_uuid).update_params(_params)
self(session_uuid).set_server(server)
self(session_uuid).set_profile_name(profile_name)
self.logger('using already registered-by-session-name session %s' % session_uuid, loglevel=log.loglevel_NOTICE)
return session_uuid
s = session.X2goSession(server=server, control_session=control_session,
profile_id=profile_id, profile_name=profile_name,
session_name=session_name,
control_backend=control_backend,
terminal_backend=terminal_backend,
info_backend=info_backend,
list_backend=list_backend,
proxy_backend=proxy_backend,
settings_backend=settings_backend,
printing_backend=printing_backend,
client_rootdir=client_rootdir,
sessions_rootdir=sessions_rootdir,
ssh_rootdir=ssh_rootdir,
keep_controlsession_alive=keep_controlsession_alive,
add_to_known_hosts=add_to_known_hosts,
known_hosts=known_hosts,
logger=self.logger, **kwargs)
session_uuid = s._X2goSession__get_uuid()
self.logger('registering X2go session %s...' % profile_name, log.loglevel_NOTICE)
self.logger('registering X2go session with UUID %s' % session_uuid, log.loglevel_DEBUG)
self.registry[session_uuid] = s
if profile_id not in self.control_sessions.keys():
self.control_sessions[profile_id] = s.get_control_session()
return session_uuid
def has_session_of_session_name(self, session_name):
"""\
Detect if we know about an L{X2goSession} of name C{<session_name>}.
@param session_name: name of session to be searched for
@type session_name: C{str}
@return: C{True} if a session of C{<session_name>} has been found
@rtype: C{bool}
"""
return bool(self.get_session_of_session_name(session_name))
def get_session_of_session_name(self, session_name, return_object=False):
"""\
Retrieve the L{X2goSession} instance with session name C{<session_name>}.
@param session_name: name of session to be retrieved
@type session_name: C{str}
@param return_object: if C{False} the session UUID hash will be returned, if C{True} the L{X2goSession} instance will be returned
@type return_object: C{bool}
@return: L{X2goSession} object or its representing session UUID hash
@rtype: L{X2goSession} instance or C{str}
"""
found_sessions = [ s for s in self.registered_sessions() if s.session_name == session_name and s.session_name is not None ]
if len(found_sessions) == 1:
session = found_sessions[0]
if return_object:
return session
else:
return session.get_uuid()
elif len(found_sessions) > 1:
raise X2goSessionRegistryException('there should only be one registered session of name ,,%s\'\'' % session_name)
else:
return None
def _sessionsWithState(self, state, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
if state == 'associated':
sessions = [ ts for ts in self.registry.values() if ts.has_terminal_session() ]
elif state == 'registered':
sessions = [ ts for ts in self.registry.values() ]
else:
sessions = [ ts for ts in self.registry.values() if eval('ts.%s' % state) ]
if return_profile_names:
profile_names = []
for session in sessions:
if session.profile_name not in profile_names:
profile_names.append(session.profile_name)
return profile_names
elif return_profile_ids:
profile_ids = []
for session in sessions:
if session.profile_id not in profile_ids:
profile_ids.append(session.profile_id)
return profile_ids
elif return_session_names:
session_names = []
for session in sessions:
if session.session_name not in session_names:
session_names.append(session.session_name)
return session_names
elif return_objects:
return sessions
else:
return [s.get_uuid() for s in sessions ]
def connected_sessions(self, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
"""\
Retrieve a list of sessions that the underlying L{X2goClient} instances is currently connected to.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_profile_names: return as list of profile names
@type return_profile_names: C{bool}
@param return_profile_ids: return as list of profile IDs
@type return_profile_ids: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects, profile names/IDs or session names)
@rtype: C{list}
"""
return self._sessionsWithState('connected', return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names)
def associated_sessions(self, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
"""\
Retrieve a list of sessions that are currently associated by an C{X2goTerminalSession*} to the underlying L{X2goClient} instance.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_profile_names: return as list of profile names
@type return_profile_names: C{bool}
@param return_profile_ids: return as list of profile IDs
@type return_profile_ids: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects, profile names/IDs or session names)
@rtype: C{list}
"""
return self._sessionsWithState('associated', return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names)
def virgin_sessions(self, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
"""\
Retrieve a list of sessions that are currently still in virgin state (not yet connected, associated etc.).
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_profile_names: return as list of profile names
@type return_profile_names: C{bool}
@param return_profile_ids: return as list of profile IDs
@type return_profile_ids: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects, profile names/IDs or session names)
@rtype: C{list}
"""
return self._sessionsWithState('virgin', return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names)
def running_sessions(self, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
"""\
Retrieve a list of sessions that are currently in running state.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_profile_names: return as list of profile names
@type return_profile_names: C{bool}
@param return_profile_ids: return as list of profile IDs
@type return_profile_ids: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects, profile names/IDs or session names)
@rtype: C{list}
"""
return self._sessionsWithState('running', return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names)
def suspended_sessions(self, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
"""\
Retrieve a list of sessions that are currently in suspended state.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_profile_names: return as list of profile names
@type return_profile_names: C{bool}
@param return_profile_ids: return as list of profile IDs
@type return_profile_ids: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects, profile names/IDs or session names)
@rtype: C{list}
"""
return self._sessionsWithState('suspended', return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names)
def terminated_sessions(self, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
"""\
Retrieve a list of sessions that have terminated recently.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_profile_names: return as list of profile names
@type return_profile_names: C{bool}
@param return_profile_ids: return as list of profile IDs
@type return_profile_ids: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects, profile names/IDs or session names)
@rtype: C{list}
"""
return self._sessionsWithState('terminated', return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names)
@property
def has_running_sessions(self):
"""\
Equals C{True} if the underlying L{X2goClient} instance has any running sessions at hand.
"""
return self.running_sessions() and len(self.running_sessions()) > 0
@property
def has_suspended_sessions(self):
"""\
Equals C{True} if the underlying L{X2goClient} instance has any suspended sessions at hand.
"""
return self.suspended_sessions and len(self.suspended_sessions) > 0
def registered_sessions(self, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
"""\
Retrieve a list of all registered sessions.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_profile_names: return as list of profile names
@type return_profile_names: C{bool}
@param return_profile_ids: return as list of profile IDs
@type return_profile_ids: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects, profile names/IDs or session names)
@rtype: C{list}
"""
return self._sessionsWithState('registered', return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names)
def non_running_sessions(self, return_objects=True, return_profile_names=False, return_profile_ids=False, return_session_names=False):
"""\
Retrieve a list of sessions that are currently _NOT_ in running state.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_profile_names: return as list of profile names
@type return_profile_names: C{bool}
@param return_profile_ids: return as list of profile IDs
@type return_profile_ids: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects, profile names/IDs or session names)
@rtype: C{list}
"""
return [ s for s in self.registered_sessions(return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names) if s not in self.running_sessions(return_objects=return_objects, return_profile_names=return_profile_names, return_profile_ids=return_profile_ids, return_session_names=return_session_names) ]
def connected_sessions_of_profile_name(self, profile_name, return_objects=True, return_session_names=False):
"""\
For a given session profile name retrieve a list of sessions that are currently connected to the profile's X2go server.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param profile_name: session profile name
@type profile_name: C{str}
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects or session names)
@rtype: C{list}
"""
if return_objects:
return self.connected_sessions() and [ s for s in self.connected_sessions() if s.profile_name == profile_name ]
elif return_session_names:
return self.connected_sessions() and [ s.session_name for s in self.connected_sessions() if s.profile_name == profile_name ]
else:
return self.connected_sessions() and [ s.get_uuid() for s in self.connected_sessions() if s.profile_name == profile_name ]
def associated_sessions_of_profile_name(self, profile_name, return_objects=True, return_session_names=False):
"""\
For a given session profile name retrieve a list of sessions that are currently associated by an C{X2goTerminalSession*} to this L{X2goClient} instance.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param profile_name: session profile name
@type profile_name: C{str}
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects or session names)
@rtype: C{list}
"""
if return_objects:
return self.associated_sessions() and [ s for s in self.associated_sessions() if s.profile_name == profile_name ]
elif return_session_names:
return self.associated_sessions() and [ s.session_name for s in self.associated_sessions() if s.profile_name == profile_name ]
else:
return self.associated_sessions() and [ s.get_uuid() for s in self.associated_sessions() if s.profile_name == profile_name ]
def registered_sessions_of_profile_name(self, profile_name, return_objects=True, return_session_names=False):
"""\
For a given session profile name retrieve a list of sessions that are currently registered with this L{X2goClient} instance.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param profile_name: session profile name
@type profile_name: C{str}
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects or session names)
@rtype: C{list}
"""
if return_objects:
return self.registered_sessions() and [ s for s in self.registered_sessions() if s.profile_name == profile_name ]
elif return_session_names:
return self.registered_sessions() and [ s.session_name for s in self.registered_sessions() if s.profile_name == profile_name ]
else:
return self.registered_sessions() and [ s.get_uuid() for s in self.registered_sessions() if s.profile_name == profile_name ]
def virgin_sessions_of_profile_name(self, profile_name, return_objects=True, return_session_names=False):
"""\
For a given session profile name retrieve a list of sessions that are registered with this L{X2goClient} instance but have not
yet been started (i.e. sessions that are in virgin state). If none of the C{return_*} options is specified a list of
session UUID hashes will be returned.
@param profile_name: session profile name
@type profile_name: C{str}
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects or session names)
@rtype: C{list}
"""
if return_objects:
return self.virgin_sessions() and [ s for s in self.virgin_sessions() if s.profile_name == profile_name ]
elif return_session_names:
return self.virgin_sessions() and [ s.session_name for s in self.virgin_sessions() if s.profile_name == profile_name ]
else:
return self.virgin_sessions() and [ s.get_uuid() for s in self.virgin_sessions() if s.profile_name == profile_name ]
def running_sessions_of_profile_name(self, profile_name, return_objects=True, return_session_names=False):
"""\
For a given session profile name retrieve a list of sessions that are currently running.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param profile_name: session profile name
@type profile_name: C{str}
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects or session names)
@rtype: C{list}
"""
if return_objects:
return self.running_sessions() and [ s for s in self.running_sessions() if s.profile_name == profile_name ]
elif return_session_names:
return self.running_sessions() and [ s.session_name for s in self.running_sessions() if s.profile_name == profile_name ]
else:
return self.running_sessions() and [ s.get_uuid() for s in self.running_sessions() if s.profile_name == profile_name ]
def suspended_sessions_of_profile_name(self, profile_name, return_objects=True, return_session_names=False):
"""\
For a given session profile name retrieve a list of sessions that are currently in suspended state.
If none of the C{return_*} options is specified a list of session UUID hashes will be returned.
@param profile_name: session profile name
@type profile_name: C{str}
@param return_objects: return as list of L{X2goSession} instances
@type return_objects: C{bool}
@param return_session_names: return as list of X2go session names
@type return_session_names: C{bool}
@return: a session list (as UUID hashes, objects or session names)
@rtype: C{list}
"""
if return_objects:
return self.suspended_sessions() and [ s for s in self.suspended_sessions() if s.profile_name == profile_name ]
elif return_session_names:
return self.suspended_sessions() and [ s.session_name for s in self.suspended_sessions() if s.profile_name == profile_name ]
else:
return self.suspended_sessions() and [ s.get_uuid() for s in self.suspended_sessions() if s.profile_name == profile_name ]
def control_session_of_profile_name(self, profile_name):
"""\
For a given session profile name retrieve a the corresponding C{X2goControlSession*} instance.
@param profile_name: session profile name
@type profile_name: C{str}
@return: contol session instance
@rtype: C{X2goControlSession*} instance
"""
_sessions = self.registered_sessions_of_profile_name(profile_name, return_objects=True)
if _sessions:
session = _sessions[0]
return session.control_session
return None
@property
def connected_control_sessions(self):
"""\
Equals a list of all currently connected control sessions.
"""
return [ c for c in self.control_sessions.values() if c.is_connected() ]
def connected_profiles(self, use_paramiko=False):
"""\
Retrieve a list of all currently connected session profiles.
@param use_paramiko: send query directly to the Paramiko/SSH layer
@type use_paramiko: C{bool}
@return: list of connected session profiles
@rtype: C{list}
"""
if use_paramiko:
return [ p for p in self.control_sessions.keys() if self.control_sessions[p].is_connected() ]
else:
return self.connected_sessions(return_profile_ids=True)
|