This file is indexed.

/usr/share/sugar/activities/SliderPuzzle.activity/SliderPuzzleActivity.py is in sugar-sliderpuzzle-activity 5-0ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
# Copyright 2007 World Wide Workshop Foundation
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
# If you find this activity useful or end up using parts of it in one of your
# own creations we would love to hear from you at info@WorldWideWorkshop.org !
#

from sugar.activity.activity import Activity, ActivityToolbox, get_bundle_path
from gettext import gettext as _
from SliderPuzzleUI import SliderPuzzleUI
from mamamedia_modules import TubeHelper
import logging, os, sys
import md5

logger = logging.getLogger('sliderpuzzle-activity')

from mamamedia_modules import json, utils


# game tube
import zlib
import time
from cStringIO import StringIO

from dbus import Interface, DBusException
from dbus.service import method, signal
from dbus.gobject_service import ExportedGObject

from mamamedia_modules import GAME_IDLE, GAME_STARTED, GAME_FINISHED, GAME_QUIT

SERVICE = "org.worldwideworkshop.olpc.SliderPuzzle.Tube"
IFACE = SERVICE
PATH = "/org/worldwideworkshop/olpc/SliderPuzzle/Tube"

class GameTube (ExportedGObject):
    """ Manage the communication between cooperating activities """
    def __init__(self, tube, is_initiator, activity):
        super(GameTube, self).__init__(tube, PATH)
        self.tube = tube
        self.activity = activity
        self.add_status_update_handler()
        self.get_buddy = activity._get_buddy
        self.syncd_once = False
        if is_initiator:
            self.add_hello_handler()
            self.add_need_image_handler()
            self.activity.ui.connect('game-state-changed', self.game_state_cb)
        else:
            self.add_re_sync_handler()
            self.Hello()

        self.tube.watch_participants(self.participant_change_cb)

    def participant_change_cb(self, added, removed):
        logger.debug('Adding participants: %r', added)
        logger.debug('Removing participants: %r', removed)

    @signal(dbus_interface=IFACE, signature='')
    def Hello(self):
        """Request that this player's Welcome method is called to bring it
        up to date with the game state.
        """

    @signal(dbus_interface=IFACE, signature='')
    def NeedImage(self):
        """Player needs actual binary image.
        """

    @signal(dbus_interface=IFACE, signature='s')
    def ReSync (self, state):
        """ signal a reshufle, possibly with a new image """

    @signal(dbus_interface=IFACE, signature='sbu')
    def StatusUpdate (self, status, clock_running, ellapsed_time):
        """ signal a reshufle, possibly with a new image """
        logger.debug("Status Update to %s, %s, %i" % (status, str(clock_running), ellapsed_time))

    def add_hello_handler(self):
        self.tube.add_signal_receiver(self.hello_cb, 'Hello', IFACE,
            path=PATH, sender_keyword='sender')

    def add_need_image_handler(self):
        self.tube.add_signal_receiver(self.need_image_cb, 'NeedImage', IFACE,
            path=PATH, sender_keyword='sender')

    def add_re_sync_handler (self):
        self.tube.add_signal_receiver(self.re_sync_cb, 'ReSync', IFACE,
            path=PATH, sender_keyword='sender')

    def add_status_update_handler(self):
        self.tube.add_signal_receiver(self.status_update_cb, 'StatusUpdate', IFACE,
            path=PATH, sender_keyword='sender')

    def game_state_cb (self, obj, state):
        if state == GAME_STARTED[0]:
            self.ReSync(self.activity.frozen.freeze())

    def hello_cb(self, obj=None, sender=None):
        """Tell the newcomer what's going on."""
        logger.debug('Newcomer %s has joined', sender)
        game = self.activity.ui.game
        f = self.activity.frozen
        if sender != self.activity.get_bus_name():
            self.tube.get_object(sender, PATH).Welcome(f.freeze(), dbus_interface=IFACE)
        else:
            self.ReSync(f.freeze())
        self.activity.ui._set_control_area()

    def need_image_cb (self, sender=None):
        """Send current image to peer as binary data."""
        if self.activity.ui.get_game_state()[1] <= GAME_IDLE[1]:
            return
        logger.debug('Sending image to %s', sender)
        img = self.activity.ui.game.get_image_as_png()
        #img = file(imgfile, 'rb').read()
        #img = self.activity.ui.game.image.get_pixbuf()
        t = time.time()
        compressed = zlib.compress(img, 9)
        # We will be sending the image, 24K at a time (my tests put the high water at 48K)
        logger.debug("was %d, is %d. compressed to %d%% in %0.4f seconds" % (len(img), len(compressed), len(compressed)*100/len(img), time.time() - t))
        part_size = 24*1024
        parts = len(compressed) / part_size
        self.tube.get_object(sender, PATH).ImageSync([], 0, dbus_interface=IFACE)
        for i in range(parts+1):
            self.tube.get_object(sender, PATH).ImageSync(compressed[i*part_size:(i+1)*part_size], i+1,
                                                         dbus_interface=IFACE)
        self.tube.get_object(sender, PATH).ImageDetailsSync(self.activity.frozen.freeze(), dbus_interface=IFACE)

    def re_sync_cb (self, state, sender=None):
        # new grid and possibly image too
        if self.syncd_once:
            return
        logger.debug("resync state: '%s' (%s)" % (state, type(state)))
        self.syncd_once = self.activity.frozen.thaw(str(state), tube=self)

    def status_update_cb (self, status, clock_running, ellapsed_time, sender=None):
        to = self.tube.get_object(sender, PATH)
        
        logger.debug("Status Update from %s:  %s, %s, %i" % (sender, status, str(clock_running), ellapsed_time))

        buddy = self.get_buddy(self.tube.bus_name_to_handle[sender])
        nick, stat = self.activity.ui.buddy_panel.update_player(buddy, status, bool(clock_running), int(ellapsed_time))
        if buddy != self.activity.owner:
            self.activity.ui.set_message(_("Buddy '%s' changed status: %s") % (nick, stat), frommesh=True)

    @method(dbus_interface=IFACE, in_signature='s', out_signature='')
    def Welcome(self, state):
        """ """
        logger.debug("Welcome...");
        logger.debug("state: '%s' (%s)" % (state, type(state)))
        self.activity.frozen.thaw(str(state), tube=self)

    @method(dbus_interface=IFACE, in_signature='ayn', out_signature='', byte_arrays=True)
    def ImageSync (self, image_part, part_nr):
        """ """
        logger.debug("Received image part #%d, length %d" % (part_nr, len(image_part)))
        self.activity.ui.set_message(_("Waiting for Puzzle image to be transferred..."))
        if part_nr == 1:
            self.image = StringIO()
            self.image.write(image_part)
        elif part_nr > 1:
            self.image.write(image_part)

    @method(dbus_interface=IFACE, in_signature='s', out_signature='', byte_arrays=True)
    def ImageDetailsSync (self, state):
        """ Signals end of image and shares the rest of the needed data to create the image remotely."""
        logger.debug("Receive end of image sync")
        self.syncd_once = self.activity.frozen.thaw(str(state), forced_image=zlib.decompress(self.image.getvalue()), tube=self)

class FrozenState (object):
	""" Keep everything about a game state here so we can easily store our state in the Journal or
	send it to mesh peers """
	def __init__ (self, slider_ui):
		self.slider_ui = slider_ui
		self._lock = False
		self.sync()

	def sync (self, *args):
		""" reads the current state for the slider_ui and keeps it """
		if self._lock:
			return
		logger.debug("sync'ing game state")
		self.frozen = json.write(self.slider_ui._freeze(journal=False))
		#self.nr_pieces = self.slider_ui.game.get_nr_pieces()
		#self.category_path = self.slider_ui.thumb.get_image_dir()
		##self.image_path = self.slider_ui.game.filename
		##if self.slider_ui.thumb.is_myownpath():
		##	self.image_path = os.path.basename(self.image_path)
		#self.thumb_state = self.slider_ui.thumb._freeze()
		##self.image_digest = self.slider_ui.game.image_digest
		#self.game_state = self.slider_ui.game._freeze(journal=False)
		##logger.debug("sync game_state: %s" % str(self.game_state))
		##logger.debug("sync category: %s image: %s (md5: %s)" % (self.category_path, self.image_path, self.image_digest))

	def apply (self):
		""" Apply the saved state to the running game """
		self.slider_ui._thaw(json.read(self.frozen))
		#self.slider_ui.thumb._thaw(self.thumb_state)
		#self.slider_ui.set_nr_pieces(None, self.nr_pieces)
		#self.slider_ui.game._thaw(self.game_state)

	def freeze (self):
		"""return a json version of the kept data"""
		return self.frozen
		#return json.write({
		#	'nr_pieces': self.nr_pieces,
		#	#'image_path': self.image_path,
    #  'thumb_state': self.thumb_state,
		#	#'image_digest': self.image_digest,
		#	'game_state': self.game_state,
		#	})

	def thaw (self, state=None, tube=None, forced_image=None):
		""" store the previously saved state """
		try:
			self._lock = True
			#found = False
			if state is not None:
				self.frozen = state
				#state = self.freeze()
			#for k,v in json.read(state).items():
			#	if hasattr(self, k):
			#		#logger.debug("%s=%s" % (k,str(v)))
			#		setattr(self, k, v)
#			self.slider_ui.thumb._thaw(self.thumb_state)
#			self.slider_ui.set_nr_pieces(None, self.nr_pieces)
#			self.slider_ui.game._thaw(self.game_state)
			#logger.debug("thaw game_state: %s" % str(self.game_state))

			if forced_image is not None:
					self.slider_ui.game.set_image_from_str(forced_image)
					self.slider_ui.thumb.load_pb(self.slider_ui.game.image)
					self.apply()
			elif tube is not None:
					tube.NeedImage()
			else:
					self.apply()
      
			#if self.image_path:
			#	if self.image_path == os.path.basename(self.image_path):
			#		# MyOwnPath based image...
			#		#if forced_image is not None:
			#		#	name = 'image_' + self.image_path
			#		#	while os.path.exists(os.path.join(self.slider_ui.thumb.myownpath, name)):
			#		#		name = '_' + name
			#		#	f = file(os.path.join(self.slider_ui.thumb.myownpath, name), 'wb')
			#		#	f.write(forced_image)
			#		#	f.close()
			#		#	self.slider_ui.thumb.set_image_dir(os.path.join(self.slider_ui.thumb.myownpath, name))
			#		#	self.slider_ui.set_nr_pieces(None, self.nr_pieces)
			#		#	self.slider_ui.game._thaw(self.game_state)
			#		#	#logger.debug("thaw game_state: %s" % str(self.game_state))
			#		#	found = True
			#		#else:
			#		#	for link, name, digest in self.slider_ui.thumb.gather_myownpath_images():
			#		#		if digest == self.image_digest:
			#		#			logger.debug("Found the image in myownpath!")
			#		#			self.slider_ui.thumb.set_image_dir(os.path.join(self.slider_ui.thumb.myownpath, link))
			#		#			self.slider_ui.set_nr_pieces(None, self.nr_pieces)
			#		#			self.slider_ui.game._thaw(self.game_state)
			#		#			logger.debug("thaw game_state: %s" % str(self.game_state))
			#		#			found = True
			#		#			break
			#		#	if not found:
			#		logger.debug("Don't know the image, so request it")
			#		if tube is not None:
			#			tube.NeedImage()
			#	elif os.path.exists(self.image_path) and md5.new(file(self.image_path, 'rb').read()).hexdigest() == self.image_digest:
			#		logger.debug("We have the image!")
			#		self.slider_ui.thumb.set_image_dir(self.image_path)
			#		#self.slider_ui.game.load_image(self.image_path)
			#		self.slider_ui.set_nr_pieces(None, self.nr_pieces)
			#		self.slider_ui.game._thaw(self.game_state)
			#		logger.debug("thaw game_state: %s" % str(self.game_state))
			#	else:
			#		logger.debug("Don't know the image, so request it")
			#		if tube is not None:
			#			tube.NeedImage()
			#else:
			#	logger.debug("No image...")
			return True
		finally:
			self._lock = False

class SliderPuzzleActivity(Activity, TubeHelper):
    def __init__(self, handle):
        Activity.__init__(self, handle)
        logger.debug('Starting Slider Puzzle activity... %s' % str(get_bundle_path()))
        os.chdir(get_bundle_path())
        self.connect('destroy', self._destroy_cb)

        toolbox = ActivityToolbox(self)
        self.set_toolbox(toolbox)
        toolbox.show()
        title_widget = toolbox._activity_toolbar.title
        title_widget.set_size_request(title_widget.get_layout().get_pixel_size()[0] + 20, -1)
		
        self.ui = SliderPuzzleUI(self)

        self.set_canvas(self.ui)
        self.show_all()

        self.frozen = FrozenState(self.ui)
        self.ui.game.connect('shuffled', self.frozen.sync)

        TubeHelper.__init__(self, tube_class=GameTube, service=SERVICE)

    def _destroy_cb(self, data=None):
        return True

    # TubeHelper mixin stuff

    @utils.trace
    def shared_cb (self):
        self.ui.buddy_panel.add_player(self.owner)

    def joined_cb (self):
        self.ui.set_readonly()

    @utils.trace
    def new_tube_cb (self):
        self.ui.set_contest_mode(True)

    def buddy_joined_cb (self, buddy):
        nick = self.ui.buddy_panel.add_player(buddy)
        self.ui.set_message(_("Buddy '%s' joined the game!") % (nick), frommesh=True)

    def buddy_left_cb (self, buddy):
        nick = self.ui.buddy_panel.remove_player(buddy)
        self.ui.set_message(_("Buddy '%s' left the game!") % (nick), frommesh=True)

    # Journal integration
		
    def read_file(self, file_path):
        f = open(file_path, 'r')
        try:
            session_data = f.read()
        finally:
            f.close()
        #logging.debug('Trying to set session: %s.' % session_data)
        print "Setting session"
        self.ui._thaw(json.read(session_data))
        print "Done setting session"
		
    def write_file(self, file_path):
        session_data = json.write(self.ui._freeze())
        f = open(file_path, 'w')
        try:
            f.write(session_data)
        finally:
            f.close()