Attachment #7688 for bug #40210

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Description[en]=UMC-Computerroom-Administration: set "yes" to activate UltraVNC shortcut (Default: false)
Type=str
Categories=management-umc

[ucsschool/umc/computerroom/hide_screenshots/groups]
Description[de]=Kommaseparierte Liste mit Gruppennamen, für deren Mitglieder keine Screenshots im Computerraum-Modul angezeigt werden sollen (Standard: Domain Admins)
Description[en]=Comma separated list of group names, for whose group members no screenshots are shown in computer room module (Default: Domain Admins)
Type=str
Categories=management-umc

[ucsschool/umc/computerroom/hide_screenshots/teachers]
Description[de]=Der Wert "true" verhindert die Anzeige von Screenshots von Lehrer-Rechnern im Computerraum-Modul (Standard: false)
Description[en]=By setting this variable to "true", screenshots of teacher's computers are not shown in computer room module (Default: false)
Type=bool
Categories=management-umc

(-)a/ucs-school-4.1/ucs-school-umc-computerroom/umc/python/computerroom/__init__.py (-9 / +20 lines)

Lines 81-87 from notifier.nf_qt import _exit	Link Here

_ = Translation('ucs-school-umc-computerroom').translate

_ = Translation('ucs-school-umc-computerroom').translate

ROOMDIR = '/var/cache/ucs-school-umc-computerroom'

ROOMDIR = '/var/cache/ucs-school-umc-computerroom'

FN_SCREENSHOT_DENIED = '/usr/share/ucs-school-umc-computerroom/screenshot_denied.jpg'

FN_SCREENSHOT_NOTREADY = '/usr/share/ucs-school-umc-computerroom/screenshot_notready.jpg'

def _getRoomFile(roomDN):

def _getRoomFile(roomDN):

	if roomDN.startswith('cn='):

	if roomDN.startswith('cn='):

Lines 545-561 class Instance(SchoolBaseModule):	Link Here

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"""

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"""

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		tmpfile = computer.screenshot

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		tmpfile = computer.screenshot

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		if tmpfile is None:

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		if computer.hide_screenshot:

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			# vnc has not (yet) received any screenshots from the computer

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			filename = FN_SCREENSHOT_DENIED

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			# dont worry, try again later

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		elif tmpfile is None:

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			self.finished(request.id, None)

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			filename = FN_SCREENSHOT_NOTREADY

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			return

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		else:

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			filename = tmpfile.name

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		response = Response(mime_type = MIMETYPE_JPEG)

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		response = Response(mime_type = MIMETYPE_JPEG)

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		response.id = request.id

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		response.id = request.id

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		response.command = 'COMMAND'

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		response.command = 'COMMAND'

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		with open(tmpfile.name, 'rb') as fd:

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		MODULE.info('screenshot(%s): hide screenshot = %r' % (computer.name, computer.hide_screenshot))

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			response.body = fd.read()

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		try:

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		os.unlink(tmpfile.name)

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			with open(filename, 'rb') as fd:

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				response.body = fd.read()

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		except (IOError, OSError) as ex:

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			MODULE.error('Unable to load screenshot file %r: %s' % (filename, ex))

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		try:

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			if tmpfile:

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				os.unlink(tmpfile.name)

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		except (IOError, OSError) as ex:

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			MODULE.error('Unable to remove temporary screenshot file %r: %s' % (tmpfile.name, ex))

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		self.finished(request.id, response)

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		self.finished(request.id, response)

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	@check_room_access

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	@check_room_access




			MODULE.info( 'Unknown user "%s"' % username )
			dict.__setitem__( self, userstr, UserInfo( '', '' ) )
		else:
			result[0].open()
			userobj = UserInfo( result[ 0 ].dn, username )
			for grp in result[ 0 ][ 'groups' ]:
				if grp.endswith( search_base.workgroups ):
					userobj.workgroups.append( udm_uldap.explodeDn( grp, True )[ 0 ] )
				elif grp.endswith( search_base.classes ):
					userobj.school_class = udm_uldap.explodeDn( grp, True )[ 0 ]
			userobj.isTeacher = search_base.isTeacher( userobj.dn )

			blacklisted_groups = set([x.strip().lower() for x in ucr.get('ucsschool/umc/computerroom/hide_screenshots/groups', 'Domain Admins').split(',')])
			users_groupmemberships = set([udm_uldap.explodeDn(x, True)[0].lower() for x in result[0]['groups']])
			MODULE.info('UserMap: %s: hide screenshots for following groups: %s' % (username, blacklisted_groups,))
			MODULE.info('UserMap: %s: user is member of following groups: %s' % (username, users_groupmemberships,))
			userobj.hide_screenshot = bool(blacklisted_groups & users_groupmemberships)

			if ucr.is_true('ucsschool/umc/computerroom/hide_screenshots/teachers', False) and userobj.isTeacher:
				MODULE.info('UserMap: %s: is teacher hiding screenshot' % (username,))
				userobj.hide_screenshot = True

			MODULE.info('UserMap: %s: hide_screenshot=%r' % (username, userobj.hide_screenshot))

			dict.__setitem__( self, userstr, userobj )

_usermap = UserMap()

		return (self._computer.info.get('mac') or [''])[ 0 ]

	@property
	def hide_screenshot(self):
		global _usermap
		try:
			return _usermap[str(self._username.current)].hide_screenshot
		except AttributeError:
			return False

	@property
	def isTeacher( self ):
		global _usermap
		try:

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