def onConfirmActive(self, pdu: ConfirmActivePDU):
"""
Disable drawing orders and other unimplemented features.
:param pdu: the confirm active PDU
"""
# Force RDP server to send bitmap events instead of order events.
pdu.parsedCapabilitySets[
CapabilityType.
CAPSTYPE_ORDER].orderFlags = OrderFlag.NEGOTIATEORDERSUPPORT | OrderFlag.ZEROBOUNDSDELTASSUPPORT
pdu.parsedCapabilitySets[
CapabilityType.CAPSTYPE_ORDER].orderSupport = b"\x00" * 32
# Disable virtual channel compression
if CapabilityType.CAPSTYPE_VIRTUALCHANNEL in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[
CapabilityType.
CAPSTYPE_VIRTUALCHANNEL].flags = VirtualChannelCompressionFlag.VCCAPS_NO_COMPR
# Override the bitmap cache capability set with null values.
if CapabilityType.CAPSTYPE_BITMAPCACHE in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[
CapabilityType.CAPSTYPE_BITMAPCACHE] = Capability(
CapabilityType.CAPSTYPE_BITMAPCACHE, b"\x00" * 36)
# Disable surface commands
if CapabilityType.CAPSETTYPE_SURFACE_COMMANDS in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[
CapabilityType.CAPSETTYPE_SURFACE_COMMANDS].cmdFlags = 0
def parseCapabilitySets(self, capabilitySetsRaw, numberCapabilities):
stream = BytesIO(capabilitySetsRaw)
capabilitySets = {}
# Do minimum parsing for every capability
for i in range(numberCapabilities):
capabilitySetType = Uint16LE.unpack(stream.read(2))
lengthCapability = Uint16LE.unpack(stream.read(2))
capabilityData = stream.read(lengthCapability - 4)
capability = Capability(capabilitySetType, capabilityData)
capabilitySets[CapabilityType(capabilitySetType)] = capability
# Fully parse the General capability set
capabilitySets[CapabilityType.CAPSTYPE_GENERAL] = \
self.parseGeneralCapability(capabilitySets[CapabilityType.CAPSTYPE_GENERAL].rawData)
# Fully parse the Glyph cache capability set
if CapabilityType.CAPSTYPE_GLYPHCACHE in capabilitySets:
capabilitySets[CapabilityType.CAPSTYPE_GLYPHCACHE] = \
self.parseGlyphCacheCapability(capabilitySets[CapabilityType.CAPSTYPE_GLYPHCACHE].rawData)
# If present, fully parse the offscreen cache capability set
if CapabilityType.CAPSTYPE_OFFSCREENCACHE in capabilitySets:
capabilitySets[CapabilityType.CAPSTYPE_OFFSCREENCACHE] = \
self.parseOffscreenCacheCapability(capabilitySets[CapabilityType.CAPSTYPE_OFFSCREENCACHE].rawData)
# If present, fully parse the surface commands cache capability set
if CapabilityType.CAPSETTYPE_SURFACE_COMMANDS in capabilitySets:
capabilitySets[CapabilityType.CAPSETTYPE_SURFACE_COMMANDS] = \
self.parseSurfaceCommandsCapability(capabilitySets[CapabilityType.CAPSETTYPE_SURFACE_COMMANDS].rawData)
# Fully parse the Bitmap capability set
capabilitySets[CapabilityType.CAPSTYPE_BITMAP] = \
self.parseBitmapCapability(capabilitySets[CapabilityType.CAPSTYPE_BITMAP].rawData)
# Fully parse the Order capability set
capabilitySets[
CapabilityType.CAPSTYPE_ORDER] = self.parseOrderCapability(
capabilitySets[CapabilityType.CAPSTYPE_ORDER].rawData)
# Fully parse the VirtualChannel capability set
if CapabilityType.CAPSTYPE_VIRTUALCHANNEL in capabilitySets:
capabilitySets[
CapabilityType.
CAPSTYPE_VIRTUALCHANNEL] = self.parseVirtualChannelCapability(
capabilitySets[
CapabilityType.CAPSTYPE_VIRTUALCHANNEL].rawData)
# Fully parse the Pointer capability set
if CapabilityType.CAPSTYPE_POINTER in capabilitySets:
capabilitySets[
CapabilityType.CAPSTYPE_POINTER] = self.parsePointerCapability(
capabilitySets[CapabilityType.CAPSTYPE_POINTER].rawData)
return capabilitySets
def onConfirmActive(self, pdu: ConfirmActivePDU):
"""
Disable drawing orders and other unimplemented features.
:param pdu: the confirm active PDU
"""
if self.state.config.downgrade:
# Disable surface commands
if CapabilityType.CAPSETTYPE_SURFACE_COMMANDS in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[
CapabilityType.CAPSETTYPE_SURFACE_COMMANDS].cmdFlags = 0
# Disable GDI if not explicitly requested.
if not self.state.config.useGdi:
# Force RDP server to send bitmap events instead of order events.
pdu.parsedCapabilitySets[CapabilityType.CAPSTYPE_ORDER].orderFlags = \
OrderFlag.NEGOTIATEORDERSUPPORT | OrderFlag.ZEROBOUNDSDELTASSUPPORT
pdu.parsedCapabilitySets[
CapabilityType.CAPSTYPE_ORDER].orderSupport = b"\x00" * 32
# Override the bitmap cache capability set with null values.
if CapabilityType.CAPSTYPE_BITMAPCACHE in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[
CapabilityType.CAPSTYPE_BITMAPCACHE] = Capability(
CapabilityType.CAPSTYPE_BITMAPCACHE, b"\x00" * 36)
else:
# Disable NineGrid support (Not implemented in Player)
if CapabilityType.CAPSTYPE_ORDER in pdu.parsedCapabilitySets:
orders = pdu.parsedCapabilitySets[
CapabilityType.CAPSTYPE_ORDER]
supported = bytearray(orders.orderSupport)
supported[Order.TS_NEG_DRAWNINEGRID_INDEX] = 0
orders.orderSupport = supported
if CapabilityType.CAPSTYPE_DRAWNINEGRIDCACHE in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[
CapabilityType.
CAPSTYPE_DRAWNINEGRIDCACHE].rawData = b"\x00" * 8
# Disable virtual channel compression
if CapabilityType.CAPSTYPE_VIRTUALCHANNEL in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[CapabilityType.CAPSTYPE_VIRTUALCHANNEL].flags = \
VirtualChannelCompressionFlag.VCCAPS_NO_COMPR
def onConfirmActive(self, pdu):
# Force RDP server to send bitmap events instead of order events.
pdu.parsedCapabilitySets[CapabilityType.CAPSTYPE_ORDER].orderFlags = OrderFlag.NEGOTIATEORDERSUPPORT \
| OrderFlag.ZEROBOUNDSDELTASSUPPORT
pdu.parsedCapabilitySets[
CapabilityType.CAPSTYPE_ORDER].orderSupport = b"\x00" * 32
# Disable virtual channel compression
if CapabilityType.CAPSTYPE_VIRTUALCHANNEL in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[
CapabilityType.CAPSTYPE_VIRTUALCHANNEL].flags = 0
# Override the bitmap cache capability set with null values.
if CapabilityType.CAPSTYPE_BITMAPCACHE in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[CapabilityType.CAPSTYPE_BITMAPCACHE] =\
Capability(CapabilityType.CAPSTYPE_BITMAPCACHE, b"\x00" * 36)
# Disable surface commands
if CapabilityType.CAPSETTYPE_SURFACE_COMMANDS in pdu.parsedCapabilitySets:
pdu.parsedCapabilitySets[
CapabilityType.CAPSETTYPE_SURFACE_COMMANDS].cmdFlags = 0
