def get(self, F):
if self.connected:
self.connection.send("get")
ans = self._get(1024)
if ans == "get":
self.connection.send(F)
debugLog("sent file request to server")
ans = self._get(1024)
if ans[0:8] == "got it: ":
fileSize = int(ans[8:])
self.connection.send("send file")
f = open(F, 'w')
fileData = ""
while len(fileData) < fileSize:
fileData += self._get(MAXFILESIZE)
# could debug, make sure len is exactly right
f.write(fileData)
f.close()
print("File Transfer Complete")
return True
else:
print(
"server did not acknowledge filename, may not be on server"
)
return False
else:
debugLog(
"server did not respond with 'get' to get request, may be in the wrong state"
)
print("Error fetching file")
return False
else:
print('Client has no connection to a server, cannot fetch')
def AddIndex(self, n):
"""
Adds n to the current slide index. May be positive or
negative.
Returns True on success; None if there is a slide(s) left by
it is still downloading; False if there are no more slides in
the queue.
"""
self._lock.acquire()
util.debugLog("AddIndex() acquired lock", 2)
if self._currentIndex+n >= len(self._slides) or self._currentIndex+n < 0:
# out of slides
util.debugLog("out of slides")
status = False
elif self._currentIndex+n >= len(self._readySlides):
# wait for more to download
util.debugLog("wait for more slides to download",2)
status = None
else:
# found a slide
util.debugLog("found a slide",2)
status = True
self._currentIndex += n
util.debugLog("AddIndex() releasing lock", 2)
self._lock.release()
return status
def _OnPreviousSlide(self, evt):
"""
Handles event to trigger the previous slide.
"""
util.debugLog("SlideshowInteractor._OnPreviousSlide()")
self.StopTimer()
self.presenter.ShiftSlide(shift=-1, blockTimer=True)
def _OnNextSlide(self, evt):
"""
Handles event to trigger the next slide.
"""
util.debugLog("SlideshowInteractor._OnNextSlide()")
self.StopTimer()
self.presenter.ShiftSlide(blockTimer=True)
def Cleanup(self):
# cleanup tmp files
if hasattr(self, "_readySlides"):
for slide in self._readySlides:
util.debugLog("Cleanup: deleting " + slide.GetLocalPath(), 2)
try:
os.unlink(slide.GetLocalPath())
except IOError: pass
def close(self):
self.isClosed = True
for c in self.connections:
try:
self.connections[c].close()
except Exception as e:
pass
debugLog("connection closed")
self.sock.close()
debugLog("socket closed")
def __init__(self, port):
self.ourPort = port
self.maxMessageSize = 1024
self.sock = EVIL.Evil()
self.sock.bind('', self.ourPort)
debugLog("socket bound to: " + self.sock.sock.getsockname()[0] + ":" +
str(self.ourPort))
operateThread = threading.Thread(None, self.operate)
operateThread.start()
def __init__(self, address, port):
self.serverAddress = address
self.serverPort = port
self.maxMessageSize = 1024
self.connected = False
self.sock = EVIL.Evil()
self.sock.bind(
'', 0
) ##tells os to bind to all hostnames on this machine with a chosen available port
debugLog("socket bound to: " + self.sock.sock.getsockname()[0] + ":" +
str(self.sock.sock.getsockname()[1]))
def close(self):
debugLog("connection.close() called!")
if self.state == STATE.CLOSED:
raise Exception("Cannot close an already-closed connection")
dgram = self.new_dgram()
dgram.setFlag(util.FLAG.FIN, True)
for _ in range(10):
self.socket.addToOutput(self.otherAddress, dgram)
self.stateCond.acquire()
self.state = STATE.CLOSED
self.stateCond.notifyAll()
self.stateCond.release()
def Find(self):
"""
Processes the entered search parameters.
"""
# init some of the searching things
self._PreStart()
self._slides = []
self.factory = FlickrSlideFactory()
newSlides = self.factory.Build(self._searchParams)
self._slides.extend(newSlides)
util.debugLog("Find(): retrieved " + str(len(self._slides)) + " slides")
# reset search params
self._searchParams = {}
def c_thread(self):
self.resendTimer = time.time()
while True:
cond = self.queue_cond
cond.acquire()
if self.dgram_queue_in.empty() and self.str_queue_out.empty():
##debugLog("waiting")
cond.wait(timeout=1)
##debugLog("wait interrupted")
cond.release()
while not self.dgram_queue_in.empty():
dgram = self.dgram_queue_in.get()
debugLog("Got incoming packet from queue")
self.process_dgram(dgram)
while len(self.dgram_unconf) < self.max_send_size and len(
self.dgram_unsent) > 0:
dgram = self.dgram_unsent.pop(0)
dgram.ack = self.ack
debugLog("Sending delayed data")
self.socket.addToOutput(self.otherAddress, dgram)
self.dgram_unconf.append(dgram)
while not self.str_queue_out.empty():
held = len(self.dgram_unconf)
debugLog("Got incoming data from queue")
data = self.str_queue_out.get()
self.process_data_str(data)
if self.state == STATE.CLOSED:
debugLog("Connection closed")
break
self.checkTimeout()
def post(self, F):
if not os.path.isfile(F):
debugLog("Passed filename wasn't a file")
return False
if self.connected:
f = open(F, 'r')
fileSize = len(f.read())
f.close()
self.connection.send("post: " + str(fileSize))
ans = self._get(1024)
if ans == "post":
self.connection.send(F)
ans = self._get(1024)
if ans == "send file":
debugLog("server ready to receive")
f = open(F, 'r')
self.connection.send(f.read())
debugLog("sent file post to server")
f.close()
print("File Transfer Complete")
return True
else:
print(
"server did not correctly acknowledge for receipt of file\n"
)
return False
else:
debugLog(
"server did not respond with 'post' to 'post' request")
print("Error sending file\n")
return False
else:
print('Client has no connection to a server, cannot fetch\n')
def Start(self):
"""
Kicks off the fetching of slide images. Continues to run until worker
threads have finished.
"""
THREAD_LIMIT = 5
self._isRunning = True
for k,slide in enumerate(self._slides):
# check to see if Stop() was called
if not self._continue: break
# limit number of threads
while self._workerCounter.Get() >= THREAD_LIMIT:
time.sleep(self._shortWaitSecs)
util.debugLog("creating new thread")
t = threading.Thread(target=self.FetchImage,
kwargs={"slide":slide, "outPath":os.path.join("cache", str(k) + ".jpg")})
id = t.getName()
util.debugLog("threadid: " + str(id),2)
# increment the thread counter before we start
self._workerCounter.Up()
t.start()
while not self._workerCounter.WasTouched() or self._workerCounter.Get() > 0:
util.debugLog("waiting for threads " + str(self._workerCounter.Get())
+ " to finish")
time.sleep(self._shortWaitSecs)
self._isRunning = False
util.debugLog("All threads have completed")
return True
def FetchImage(self, slide, outPath):
"""
Retrieves an image from Flickr and stores it in the model.
"""
slide.GetImage(outPath)
self._lock.acquire()
util.debugLog(outPath + " acquired lock",2)
# make sure the model wasn't Stop()'d
if not self._continue:
return self._ShutdownWorker(slide, outPath)
self._readySlides.append(slide)
util.debugLog(outPath + " releasing lock",2)
self._lock.release()
self._workerCounter.Down()
def StartSlideshow(self):
"""
Starts the slideshow. Mostly sets up the model.
"""
util.debugLog("SlideshowPresenter.StartSlideshow()")
self._first = True
self._longWaitSecs = self.interactor.displayTime
try:
self._ModelSearch()
except (slideshowmodel.SlideshowModelNoSlides, IOError), inst:
msg = str(inst)
util.debugLog(msg)
self.view.UpdateStatus("Error")
self.view.Popup(msg)
return False
def operate(self):
while True:
if self.sock.isClosed:
break
try:
newSessionConnection = self.sock.accept(timeout=5)
except Exception as e:
continue
if self.sock.isClosed:
break
debugLog("accepted connection from " +
newSessionConnection.otherAddress[0] + ":" +
str(newSessionConnection.otherAddress[1]))
sessionThread = threading.Thread(None, self.handleSession,
"session_thread",
(newSessionConnection, ))
sessionThread.start()
def process_data_str(self, data):
# seq will be added in EVIL.py
dgram = self.new_dgram()
dgram.data = data
dgram.seq = self.seq + len(data)
dgram.window = self.max_window_size
dgram.checksum = dgram.generateCheckSum()
self.seq += len(data) #TODO may change
if len(self.dgram_unconf) >= self.max_send_size:
debugLog("queue full; deferring packet")
self.dgram_unsent.append(dgram)
else:
debugLog("appended packet to queue")
self.dgram_unconf.append(dgram)
self.socket.addToOutput(self.otherAddress, dgram)
def GetImage(self, outPath):
"""
Downloads the image file to the specified path.
Returns True on success.
"""
self._localPath = outPath
# get the URL if it's not already saved
if not hasattr(self, "_url"): self.GetUrl()
util.debugLog(self._localPath + " downloading image",2)
data = urllib.urlopen(self._url).read()
fd = open(outPath, "wb")
try:
fd.write(data)
finally:
fd.close()
util.debugLog("Saved " + self._url + " to " + outPath)
return True
def _PreStart(self):
"""
Sets up some status and synchronization members at the start
of each show.
"""
while self.IsRunning():
# wait for previous slideshows to finish
self.Stop()
util.debugLog("waiting for "
+ str(self._workerCounter.Get())
+ " threads to finish before PreStart")
time.sleep(self._shortWaitSecs)
self._continue = True
self._currentIndex = 0
self._readySlides = []
# Thread-sensitive members
self._lock = threading.Lock()
self._workerCounter = util.ThreadCounter()
def ShowImage(self, imagePath):
util.debugLog("slideshowview.ShowImage()")
# added to fix problem with statusbar/title update not appearing
wx.YieldIfNeeded()
util.debugLog("ShowImage() YIELDING",2)
# resize the image
newImagePath = self._PrepareImageFile(imagePath)
image = wx.Image(newImagePath, wx.BITMAP_TYPE_JPEG)
x,y = imaging.GetCenterFromTopLeft(self._window.GetSize(), image.GetSize())
bmp = wx.BitmapFromImage(image)
self.DestroyBmp()
self._staticBmp = wx.StaticBitmap(self._window, wx.ID_ANY, bmp,
wx.Point(x,y),
wx.Size(image.GetWidth(),
image.GetHeight()))
try:
os.unlink(newImagePath)
except IOError, (errno, strerror):
print "I/O error(%s): %s" % (errno, strerror)
def connect(self, host, port):
"""
Called by client code - socket and connection threads should not touch!
blocks while attempting to establish a connection with specified server
Return: a Connection instance (if successful) or an error
Errors: if socket closed, throw exception
"""
self.connectionsLock.acquire()
newConn = connection.Connection(self.sock.getsockname()[1], port,
self.maxWindowSize,
connection.STATE.SYN_SENT, host, self)
self.connections[(host, port)] = newConn
self.connectionsLock.release()
newConn.establishConnection()
debugLog("new connection created with: " + host + " on port " +
str(port))
return newConn
def checkTimeout(self):
if (time.time() - self.resendTimer) < self.DEFAULT_TIMEOUT:
return
new_dgram = self.new_dgram()
self.stateCond.acquire()
oldState = self.state
if oldState == STATE.SYN_RECV:
new_dgram.setFlag(util.FLAG.SYN, True)
new_dgram.setFlag(util.FLAG.ACK, True)
self.socket.addToOutput(self.otherAddress, new_dgram)
debugLog("resent SYN+ACK")
elif oldState == STATE.SYN_SENT:
new_dgram.setFlag(util.FLAG.SYN, True)
self.socket.addToOutput(self.otherAddress, new_dgram)
debugLog("resent SYN")
elif oldState == STATE.ESTABLISHED:
#Need to resend any unACK-ed data
for dgram in self.dgram_unconf:
debugLog("Resending data")
self.socket.addToOutput(self.otherAddress, dgram)
if self.missedKeeps >= 3:
self.state = STATE.CLOSED
return
if len(self.dgram_unconf) == 0:
new_dgram.setFlag(util.FLAG.KEP, True)
self.socket.addToOutput(self.otherAddress, new_dgram)
self.missedKeeps += 1
self.resendTimer = time.time()
self.stateCond.release()
def ShiftSlide(self, shift=1, blockTimer=False):
"""
Moves or "shifts" a 'shift' number of slides in the queue.
If blockTimer is true, then the timer is not set after calling.
"""
# check see if we were even started
if not self._isRunning: return False
# don't go to the next picture if we've yet to show one
if self._first is True: shift = 0
status = self.model.AddIndex(shift)
if status == None:
util.debugLog("need to wait more for another slide",1)
self.view.UpdateStatus("Waiting for next image to download...")
# Init timer to call again in a bit
if not blockTimer: self.StartTimer(self._shortWaitSecs)
elif status == False:
util.debugLog("no more slides")
self.view.UpdateStatus("Slideshow finished")
else:
self.view.UpdateTitle(self.model.CurrentTitle() + ', uploaded by ' + self.model.CurrentAuthor())
self.view.UpdateStatus("Drawing Image...")
util.debugLog("showing current slide",2)
path = self.model.CurrentImagePath()
self._first = False
self.view.ShowImage(path)
if blockTimer: self.view.UpdateStatus("Ready")
else: self.view.UpdateStatus("Playing slideshow...")
# Init timer to call again in a while
if not blockTimer: self.StartTimer(self._longWaitSecs)
def establishConnection(self):
self.stateCond.acquire()
debugLog(str(self.state))
new_dgram = self.new_dgram()
new_dgram.setFlag(util.FLAG.SYN, True)
if self.state == STATE.SYN_RECV:
new_dgram.setFlag(util.FLAG.ACK, True)
debugLog("Sending SYN+ACK")
else:
debugLog("Sending SYN")
self.socket.addToOutput(self.otherAddress, new_dgram)
while self.state != STATE.ESTABLISHED and self.state != STATE.CLOSED:
self.stateCond.wait()
debugLog(str(self.state))
self.stateCond.release()
return
def accept(self, block=True, timeout=None):
"""
called by client code - Socket and connection threads should not touch!
blocks until a new connection is received and a Connection object has
been created.
Return: a Connection instance
Errors: if socket closed, throw exception
"""
unknownPacket = self.unknownPackets.get(block, timeout)
debugLog("got unknown packet for accept call")
self.connectionsLock.acquire()
newConn = connection.Connection(self.sock.getsockname()[1],
unknownPacket[1][1],
self.maxWindowSize,
connection.STATE.SYN_RECV,
unknownPacket[1][0], self)
self.connections[(unknownPacket[1][0], unknownPacket[1][1])] = newConn
self.connectionsLock.release()
newConn.establishConnection()
return newConn
def speaker(self):
debugLog("speakerThread started on port " +
str(self.sock.getsockname()[1]))
while True:
if self.isClosed:
break
try:
recipient, packet = self.outgoingPackets.get(timeout=5)
except Exception as e:
continue
if self.isClosed:
break
debugLog("pack checksum: " + hex(packet.checksum) + '\n')
debugLog("Recip: " + str(recipient) + '\n')
#packet.printSelf()
self.sock.sendto(packet.toString(), recipient)
debugLog("sent: " + hex(packet.checksum))
def handleIncoming(self, packet):
try:
self.dgram_queue_in.put(packet, timeout=0.5)
debugLog("added incoming packet to queue")
self.queue_cond.acquire()
self.queue_cond.notifyAll()
debugLog("queue notification sent")
self.queue_cond.release()
self.queue_cond.release()
debugLog("released twice")
except Exception as e:
pass
def _OnKey(self, evt):
if evt.GetKeyCode() == wx.WXK_RIGHT:
util.debugLog("wx.WXK_RIGHT",2)
self._OnNextSlide(None)
elif evt.GetKeyCode() == wx.WXK_LEFT:
util.debugLog("wx.WXK_LEFT",2)
self._OnPreviousSlide(None)
elif evt.GetKeyCode() == wx.WXK_SPACE:
util.debugLog("wx.WXK_SPACE",2)
self.ToggleTimer()
elif evt.GetKeyCode() == wx.WXK_F11:
self.view.OnFullscreen(None)
# Continue processing other keys
else: evt.Skip()
def GetUrl(self):
"""
Returns the URL (string) of the image.
"""
util.debugLog(self._localPath + " fetching URL",2)
try:
url = self._photo.getURL(size='Original', urlType='source')
except flickr.FlickrError:
util.debugLog("Original size not found")
try:
url = self._photo.getURL(size='Large', urlType='source')
except flickr.FlickrError:
util.debugLog("Large size not found")
url = self._photo.getURL(size='Medium', urlType='source')
self._url = url
return url
def _OnStartSlideshow(self, evt):
"""
Handles the starting of the slideshow after clicking on the menu option.
"""
util.debugLog("SlideshowInteractor._OnStartSlideshow()")
self.StopTimer()
dlg = slideshowsearch.SlideshowSearchDialog(self.view, -1,
"New Slideshow",
size=(350, 200),
style=wx.DEFAULT_DIALOG_STYLE)
dlg.CenterOnScreen()
# this does not return until the dialog is closed.
val = dlg.ShowModal()
if val == wx.ID_OK:
util.debugLog("You pressed OK\n")
self.searchString = dlg.GetSearchString()
self.displayTime = dlg.GetDisplayTime()
self.presenter.StartSlideshow()
else:
util.debugLog("You pressed Cancel\n")
dlg.Destroy()
def StartTimer(self, waitSecs):
"""
Initializes the timer in the presenter using wx.FutureCall.
"""
util.debugLog("starting timer",2)
self._timer = wx.FutureCall(waitSecs*1000, self.presenter.ShiftSlide)
def StopTimer(self):
"""
Stops the running timer.
"""
if hasattr(self, "_timer"): self._timer.Stop()
util.debugLog("stopping timer",2)
def DestroyBmp(self):
util.debugLog("slideshowview.DestroyBmp()")
if hasattr(self, "_staticBmp"): self._staticBmp.Destroy()
def _OnExitApp(self, evt):
"""
Handles the exit event.
"""
util.debugLog("OnExitApp()")
self.view.Close(True)
def connect(self):
self.connection = self.sock.connect(self.serverAddress,
self.serverPort)
self.connected = True
debugLog("created connection with " + self.connection.otherAddress[0] +
":" + str(self.connection.otherAddress[1]))
def terminate(self):
self.sock.close()
debugLog("Server Closed")
sys.exit()
def _ProcessUsername(self):
util.debugLog("processing username " + self._searchParams["username"])
user = flickr.people_findByUsername(self._searchParams["username"])
self._ProcessUserPages(user)
btn.SetHelpText("Cancel the slideshow")
btnsizer.AddButton(btn)
btnsizer.Realize()
sizer.Add(btnsizer, 0, wx.ALIGN_CENTER_VERTICAL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALL, 5)
self.SetSizer(sizer)
sizer.Fit(self)
def GetSearchString(self):
return self._searchString.GetValue()
def GetDisplayTime(self):
return self._slider.GetValue()
if __name__ == "__main__":
import slideshowview, util
view = slideshowview.SlideshowView()
dlg = SlideshowSearchDialog(view, -1, "New Slideshow", size=(470, 200),
#style = wx.CAPTION | wx.SYSTEM_MENU | wx.THICK_FRAME)
style = wx.DEFAULT_DIALOG_STYLE)
dlg.CenterOnScreen()
# this does not return until the dialog is closed.
val = dlg.ShowModal()
print dlg.GetSearchString(), dlg.GetDisplayTime()
if val == wx.ID_OK:
util.debugLog("You pressed OK\n")
else:
util.debugLog("You pressed Cancel\n")
def _ShutdownWorker(self, slide, outPath):
util.debugLog(outPath + " releasing lock",2)
self._lock.release()
os.unlink(slide.GetLocalPath())
self._workerCounter.Down()
def _ProcessUrl(self):
util.debugLog("processing url " + self._searchParams["url"])
user = flickr.people_findByURL(self._searchParams["url"])
self._ProcessUserPages(user)
def process_dgram(self, dgram):
self.stateCond.acquire()
oldState = self.state
self.max_send_size = dgram.window
new_dgram = self.new_dgram()
if dgram.checkFlag(util.FLAG.FIN):
debugLog("FIN received. Closing connection.")
self.state = STATE.CLOSED
self.stateCond.notifyAll()
elif oldState != STATE.ESTABLISHED:
if oldState == STATE.CLOSED:
pass
if oldState == STATE.SYN_SENT:
if dgram.checkFlag(util.FLAG.SYN) and dgram.checkFlag(
util.FLAG.ACK):
new_dgram.setFlag(util.FLAG.ACK, True)
self.setState(STATE.ESTABLISHED)
self.stateCond.notifyAll()
self.socket.addToOutput(self.otherAddress, new_dgram)
debugLog("Sent ACK")
if oldState == STATE.SYN_RECV:
if dgram.checkFlag(util.FLAG.ACK):
self.setState(STATE.ESTABLISHED)
self.stateCond.notifyAll()
debugLog("Connection Established")
if oldState == STATE.FIN_WAIT_1:
pass
if oldState == STATE.FIN_WAIT_2:
pass
if oldState == STATE.FIN_CLOSING:
pass
if oldState == STATE.TIME_WAIT:
pass
if oldState == STATE.CLOSE_WAIT:
pass
if oldState == STATE.LAST_ACK:
pass
pass
else:
if dgram.checkFlag(util.FLAG.KEP):
if dgram.checkFlag(util.FLAG.ACK):
self.missedKeeps = 0
else:
new_dgram.setFlag(util.FLAG.ACK, True)
new_dgram.setFlag(util.FLAG.KEP, True)
self.socket.addToOutput(self.otherAddress, new_dgram)
if dgram.checkFlag(util.FLAG.SYN) and dgram.checkFlag(
util.FLAG.ACK):
new_dgram.setFlag(util.FLAG.ACK, True)
debugLog("Resending ACK")
self.socket.addToOutput(self.otherAddress, new_dgram)
dataLen = len(dgram.data)
if self.ack + dataLen < dgram.seq:
#Out of order packet. Will be dropped.
# Re-acknowledge last received in-order packet with RET set
new_dgram.setFlag(util.FLAG.RET, True)
self.socket.addToOutput(self.otherAddress, new_dgram)
debugLog(
"Received packet out-of-order. Re-ACKing last received packet"
)
return
elif self.ack + dataLen == dgram.seq and dataLen != 0:
self.resendTimer = time.time()
self.ack += len(dgram.data) #TODO: need to change to fit data type
rcvd_ack = dgram.ack
j = len(self.dgram_unconf)
i = 0
while i < j:
if self.dgram_unconf[i].seq <= rcvd_ack:
self.dgram_unconf.pop(i)
self.resendTimer = time.time()
i -= 1
j -= 1
i += 1
if len(dgram.data) != 0:
self.str_queue_in.put(dgram.data)
new_dgram = self.new_dgram() #get new ack number
debugLog("ACKing received packet")
self.socket.addToOutput(self.otherAddress, new_dgram)
elif dgram.checkFlag(util.FLAG.RET):
debugLog("Got RET - resending!")
#need to resend unconfirmed packets.
#will fake resendTimer so that resend happens right away
self.resendTimer = time.time() - (self.DEFAULT_TIMEOUT + 1)
self.stateCond.release()
def _ProcessEmail(self):
util.debugLog("processing email " + self._searchParams["email"])
user = flickr.people_findByEmail(self._searchParams["email"])
self._ProcessUserPages(user)
def listener(self):
debugLog("listenerThread started on port " +
str(self.sock.getsockname()[1]))
while True:
debugLog("receiving")
ready = select.select([self.sock], [], [], 5)
if self.isClosed:
break
if (ready[0]):
msg, address = self.sock.recvfrom(1024)
else:
continue
if self.isClosed:
break
debugLog("received packet from: " + address[0] + ":" +
str(address[1]))
packet = util.EVILPacket()
packet = packet.parseFromString(msg)
packet.printSelf()
if not packet.validateCheckSum():
debugLog("Invalid Checksum," + hex(packet.checksum) + " vs. " +
hex(packet.generateCheckSum()) + ", tossing packet")
continue
if address in self.connections:
debugLog("packet belonged to an existing connection")
self.connectionsLock.acquire()
self.connections[address].handleIncoming(packet)
self.connectionsLock.release()
else:
debugLog("packet didn't belong to any existing connections")
if packet.checkFlag(util.FLAG.SYN):
debugLog("packet contained syn flag")
self.unknownPackets.put((packet, address), False)
def handleSession(self, conn):
debugLog("new session started with " + conn.otherAddress[0] + ":" +
str(conn.otherAddress[1]))
sessionState = SESSIONSTATE.IDLE
filename = ""
fileSize = 0
while True:
if conn.state == connection.STATE.CLOSED:
break
try:
string = conn.get(1024, timeout=5)
except Exception as e:
continue
debugLog("received " + string + " from " + conn.otherAddress[0] +
":" + str(conn.otherAddress[1]))
if sessionState == SESSIONSTATE.IDLE:
if string == "get":
sessionState = SESSIONSTATE.GET_1
debugLog("Session now get 1")
conn.send("get")
elif string[0:6] == "post: ":
fileSize = int(string[6:])
sessionState = SESSIONSTATE.POST_1
debugLog("Session now post 1")
conn.send("post")
elif sessionState == SESSIONSTATE.GET_1:
filename = string
if os.path.isfile(filename):
sessionState = SESSIONSTATE.GET_2
debugLog("Session now get 2")
f = open(filename, 'r')
fileLen = len(f.read())
conn.send("got it: " + str(fileLen))
f.close()
else:
sessionState == SESSIONSTATE.IDLE
debugLog("Session now idle")
conn.send("back to idle")
elif sessionState == SESSIONSTATE.GET_2:
if string == "send file":
f = open(filename, 'r')
conn.send(f.read())
f.close()
# conn.send("back to idle")
sessionState = SESSIONSTATE.IDLE
else:
sessionState == SESSIONSTATE.IDLE
debugLog("Session now idle")
conn.send("back to idle")
elif sessionState == SESSIONSTATE.POST_1:
filename = string
sessionState = SESSIONSTATE.POST_2
debugLog("Session now post 2")
conn.send("send file")
elif sessionState == SESSIONSTATE.POST_2:
while len(string) < fileSize:
string += conn.get(1024)
f = open(filename, 'w')
f.write(string)
f.close()
debugLog("Post Complete")
sessionState = SESSIONSTATE.IDLE
debugLog("Session now idle")
def _Shutdown(self, evt):
util.debugLog("Shutdown()")
self.presenter.CleanupSlideshow()
if evt: evt.Skip()
def terminate(self):
self.sock.close()
debugLog("Client Closed")
sys.exit()
