def __init__(self, file: BinaryIO):
super().__init__(None)
self.queue = Queue()
self.lastSeekTime = 0
self.requestedSpeed = 1
events = defaultdict(list)
startingPosition = file.tell()
file.seek(0, os.SEEK_END)
size = file.tell()
# Take note of the position of each event and its timestamp
file.seek(0)
currentMessagePosition = 0
tpkt = TPKTLayer()
player = PlayerMessageLayer()
tpkt.setNext(player)
def registerEvent(pdu: PlayerMessagePDU):
events[pdu.timestamp].append(currentMessagePosition)
player.createObserver(onPDUReceived=registerEvent)
while file.tell() < size:
data = file.read(4)
tpkt.recv(data)
data = file.read(tpkt.getDataLengthRequired())
tpkt.recv(data)
currentMessagePosition = file.tell()
file.seek(startingPosition)
# Use relative timestamps to simplify things
self.events = {}
if len(events) == 0:
self.duration = 0
else:
timestamps = sorted(events.keys())
startingTime = timestamps[0]
for timestamp in timestamps:
relative = timestamp - startingTime
self.events[relative] = events[timestamp]
self.duration = (timestamps[-1] - startingTime) / 1000.0
class ReplayTab(RDPConnectionTab):
"""
Tab that displays a RDP Connection that is being replayed from a file.
"""
def __init__(self, fileName: str):
"""
:param fileName: name of the file to read.
"""
self.viewer = QRemoteDesktop(800, 600)
RDPConnectionTab.__init__(self, self.viewer)
self.fileName = fileName
self.file = open(self.fileName, "rb")
self.eventHandler = PlayerMessageHandler(self.widget, self.text)
self.thread = ReplayThread(self.file)
self.thread.eventReached.connect(self.readEvent)
self.thread.timeUpdated.connect(self.onTimeUpdated)
self.thread.clearNeeded.connect(self.clear)
self.thread.start()
self.controlBar = ControlBar(self.thread.getDuration())
self.controlBar.play.connect(self.thread.play)
self.controlBar.pause.connect(self.thread.pause)
self.controlBar.seek.connect(self.thread.seek)
self.controlBar.speedChanged.connect(self.thread.setSpeed)
self.layout().insertWidget(0, self.controlBar)
self.tpkt = TPKTLayer()
self.message = PlayerMessageLayer()
self.tpkt.setNext(self.message)
self.message.addObserver(self.eventHandler)
def readEvent(self, position: int):
"""
Read an event from the file at the given position.
:param position: the position of the event in the file.
"""
self.file.seek(position)
data = self.file.read(4)
self.tpkt.recv(data)
length = self.tpkt.getDataLengthRequired()
data = self.file.read(length)
self.tpkt.recv(data)
def onTimeUpdated(self, currentTime: float):
"""
Called everytime the thread ticks.
:param currentTime: the current time.
"""
self.controlBar.timeSlider.blockSignals(True)
self.controlBar.timeSlider.setValue(int(currentTime * 1000))
self.controlBar.timeSlider.blockSignals(False)
def clear(self):
"""
Clear the UI.
"""
self.viewer.clear()
self.text.setText("")
def onClose(self):
self.thread.close()