torbrowser-launcher

   1 #!/usr/bin/env python
   2
   3 import os, sys, subprocess, locale, urllib2, gobject
   4
   5 import pygtk
   6 pygtk.require('2.0')
   7 import gtk
   8
   9 class TorBrowserLauncher:
  10   def __init__(self, current_tbb_version):
  11     # initialize the app
  12     self.current_tbb_version = current_tbb_version
  13     self.discover_arch_lang();
  14     self.build_paths();
  15     self.mkdirs();
  16
  17     launch_gui = True
  18
  19     # is TBB already installed?
  20     if os.path.isfile(self.paths['file']['start']) and os.access(self.paths['file']['start'], os.X_OK):
  21       # does the version file exist?
  22       if os.path.isfile(self.paths['file']['version']):
  23         installed_tbb_version = open(self.paths['file']['version']).read().strip()
  24
  25         if installed_tbb_version == current_tbb_version:
  26           # current version is tbb is installed, launch it
  27           self.run(False)
  28           launch_gui = False
  29         elif installed_tbb_version < self.current_tbb_version:
  30           # there is a tbb upgrade available
  31           self.set_gui('task', "Your Tor Browser Launcher is out of date. Click Start to download the latest version from https://www.torproject.org.", ['download_tarball', 'download_tarball_sig', 'verify', 'extract', 'run'])
  32         else:
  33           # for some reason the installed tbb is newer than the current version?
  34           self.set_gui('error', "Something is wrong. The version of Tor Browser Bundle you have installed is newer than the current version?")
  35
  36       else:
  37         # if tbb is installed but the version file doesn't exist, something is wrong
  38         self.set_gui('error', "Something is wrong. You have the Tor Browser Bundle installed, but the version file is missing.")
  39
  40     # not installed
  41     else:
  42       # save the current version to the file
  43       open(self.paths['file']['version'], 'w').write(self.current_tbb_version)
  44
  45       # are the tarball and sig already downloaded?
  46       if os.path.isfile(self.paths['file']['tarball']) and os.path.isfile(self.paths['file']['tarball_sig']):
  47         # start the gui with verify
  48         self.set_gui('task', "You already have Tor Browser Bundle downloaded, but it isn't installed yet.", ['verify', 'extract', 'run'])
  49
  50       # first run
  51       else:
  52         self.set_gui('task', "The first time you run the Tor Browser Launcher you need to download the Tor Browser Bundle. Click Start to download it now from https://www.torproject.org/.", ['download_tarball', 'download_tarball_sig', 'verify', 'extract', 'run'])
  53
  54     if launch_gui:
  55       self.build_ui()
  56       gtk.main()
  57
  58   # discover the architecture and language
  59   def discover_arch_lang(self):
  60     # figure out the architecture
  61     self.architecture = subprocess.check_output(['arch']).strip('\n')
  62
  63     # figure out the language
  64     available_languages = ['en-US', 'ar', 'de', 'es-ES', 'fa', 'fr', 'it', 'ko', 'nl', 'pl', 'pt-PT', 'ru', 'vi', 'zh-CN']
  65     self.language = locale.getdefaultlocale()[0].replace('_', '-')
  66     if self.language not in available_languages:
  67       self.language = self.language.split('-')[0]
  68       if self.language not in available_languages:
  69         for l in available_languages:
  70           if l[0:2] == self.language:
  71             self.language = l
  72     # if language isn't available, default to english
  73     if self.language not in available_languages:
  74       self.language = 'en-US'
  75
  76   # build all relevant paths
  77   def build_paths(self):
  78     tbb_data = os.getenv('HOME')+'/.torbrowser'
  79     tarball_filename = 'tor-browser-gnu-linux-'+self.architecture+'-'+self.current_tbb_version+'-dev-'+self.language+'.tar.gz'
  80
  81     self.paths = {
  82       'dir': {
  83         'data': tbb_data,
  84         'download': tbb_data+'/download',
  85         'tbb': tbb_data+'/tbb/'+self.architecture,
  86         'gpg': tbb_data+'/gpgtmp'
  87       },
  88       'file': {
  89         'version': tbb_data+'/version',
  90         'start': tbb_data+'/tbb/'+self.architecture+'/tor-browser_'+self.language+'/start-tor-browser',
  91         'tarball': tbb_data+'/download/'+tarball_filename,
  92         'tarball_sig': tbb_data+'/download/'+tarball_filename+'.asc',
  93         'verify': '/usr/share/torbrowser-launcher/verify.sh'
  94       },
  95       'url': {
  96         #'tarball': 'https://www.torproject.org/dist/torbrowser/linux/'+tarball_filename,
  97         #'tarball_sig': 'https://www.torproject.org/dist/torbrowser/linux/'+tarball_filename+'.asc'
  98         'tarball': 'http://localhost/'+tarball_filename,
  99         'tarball_sig': 'http://localhost/'+tarball_filename+'.asc'
 100       },
 101       'filename': {
 102         'tarball': tarball_filename,
 103         'tarball_sig': tarball_filename+'.asc'
 104       }
 105     }
 106
 107   # create directories that don't exist
 108   def mkdirs(self):
 109     if os.path.exists(self.paths['dir']['download']) == False:
 110       os.makedirs(self.paths['dir']['download'])
 111     if os.path.exists(self.paths['dir']['tbb']) == False:
 112       os.makedirs(self.paths['dir']['tbb'])
 113
 114   # there are different GUIs that might appear, this sets which one we want
 115   def set_gui(self, gui, message, tasks):
 116     self.gui = gui
 117     self.gui_message = message
 118     self.gui_tasks = tasks
 119
 120   # build the application's UI
 121   def build_ui(self):
 122     self.timer = False
 123
 124     self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
 125     self.window.set_title("Tor Browser Launcher")
 126     self.window.set_border_width(10)
 127
 128     self.window.connect("delete_event", self.delete_event)
 129     self.window.connect("destroy", self.destroy)
 130
 131     self.box = gtk.VBox(False, 20)
 132     self.window.add(self.box)
 133
 134     if self.gui == 'error':
 135       # labels
 136       self.label1 = gtk.Label( self.gui_message );
 137       self.label1.set_line_wrap(True)
 138       self.box.pack_start(self.label1, True, True, 0)
 139       self.label1.show()
 140
 141       self.label2 = gtk.Label("You can fix the problem by deleting:\n"+self.paths['dir']['data']+"\n\nHowever, you will lose all your bookmarks and other Tor Browser preferences.");
 142       self.label2.set_line_wrap(True)
 143       self.box.pack_start(self.label2, True, True, 0)
 144       self.label2.show()
 145
 146       # exit button
 147       self.exit_button = gtk.Button("Exit")
 148       self.exit_button.connect("clicked", self.destroy, None)
 149       self.box.add(self.exit_button)
 150       self.exit_button.show()
 151
 152     elif self.gui == 'task':
 153       # label
 154       self.label = gtk.Label( self.gui_message );
 155       self.label.set_line_wrap(True)
 156       self.box.pack_start(self.label, True, True, 0)
 157       self.label.show()
 158
 159       # progress bar
 160       self.progressbar = gtk.ProgressBar(adjustment=None)
 161       self.progressbar.set_orientation(gtk.PROGRESS_LEFT_TO_RIGHT)
 162       self.progressbar.set_pulse_step(0.1)
 163       self.progressbar_is_pulsing = False
 164       self.box.pack_start(self.progressbar, True, True, 0)
 165
 166       # button box
 167       self.button_box = gtk.HButtonBox()
 168       self.button_box.set_layout(gtk.BUTTONBOX_SPREAD)
 169       self.box.pack_start(self.button_box, True, True, 0)
 170       self.button_box.show()
 171
 172       # start button
 173       self.start_button = gtk.Button("Start")
 174       self.start_button.connect("clicked", self.start, None)
 175       self.button_box.add(self.start_button)
 176       self.start_button.show()
 177
 178       # exit button
 179       self.exit_button = gtk.Button("Exit")
 180       self.exit_button.connect("clicked", self.destroy, None)
 181       self.button_box.add(self.exit_button)
 182       self.exit_button.show()
 183
 184     self.box.show()
 185     self.window.show();
 186
 187   # start button clicked, begin tasks
 188   def start(self, widget, data=None):
 189     # disable the start button
 190     self.start_button.set_sensitive(False)
 191
 192     # start running tasks
 193     self.gui_task_i = 0
 194     self.run_task()
 195
 196   # run the next task in the task list
 197   def run_task(self):
 198     if self.gui_task_i >= len(self.gui_tasks):
 199       self.destroy(False)
 200       return
 201
 202     task = self.gui_tasks[self.gui_task_i]
 203
 204     # get ready for the next task
 205     self.gui_task_i += 1
 206
 207     if task == 'download_tarball':
 208       print 'Downloading '+self.paths['url']['tarball']
 209       self.download('tarball', self.paths['url']['tarball'], self.paths['file']['tarball'])
 210
 211     elif task == 'download_tarball_sig':
 212       print 'Downloading '+self.paths['url']['tarball_sig']
 213       self.download('signature', self.paths['url']['tarball_sig'], self.paths['file']['tarball_sig'])
 214
 215     elif task == 'verify':
 216       print 'Verifying signature'
 217       self.verify()
 218
 219     elif task == 'extract':
 220       print 'Extracting '+self.paths['filename']['tarball']
 221       self.extract()
 222
 223     elif task == 'run':
 224       print 'Running '+self.paths['file']['start']
 225       self.run()
 226
 227
 228   def download(self, name, url, path):
 229     # initialize the progress bar
 230     self.progressbar.set_fraction(0)
 231     self.progressbar.set_text('Downloading '+name)
 232     self.progressbar.show()
 233
 234     # start the download
 235     self.dl_response = urllib2.urlopen(url);
 236     self.dl_total_size = self.dl_response.info().getheader('Content-Length').strip()
 237     self.dl_total_size = int(self.dl_total_size)
 238     self.dl_bytes_so_far = 0
 239
 240     # set a timer to download more chunks
 241     self.timer = gobject.timeout_add(1, self.download_chunk, name)
 242
 243     # open a file to write to
 244     self.file_download = open(path, 'w')
 245
 246   def download_chunk(self, name):
 247     # download 10kb a time
 248     chunk = self.dl_response.read(10240)
 249     self.dl_bytes_so_far += len(chunk)
 250     self.file_download.write(chunk)
 251
 252     if not chunk:
 253       self.file_download.close()
 254       # next task!
 255       self.run_task()
 256       return False
 257
 258     percent = float(self.dl_bytes_so_far) / self.dl_total_size
 259     self.progressbar.set_fraction(percent)
 260     percent = round(percent*100, 2)
 261     self.progressbar.set_text("Downloaded %d%% of %s" % (percent, name))
 262
 263     sys.stdout.write("Downloaded %d of %d bytes (%0.2f%%)\r" % (self.dl_bytes_so_far, self.dl_total_size, percent))
 264
 265     if self.dl_bytes_so_far >= self.dl_total_size:
 266       sys.stdout.write('\n')
 267
 268     return True
 269
 270   def progressbar_pulse(self):
 271     print 'pulse'
 272     if self.progressbar_is_pulsing:
 273       self.progressbar.pulse()
 274       return True
 275     else:
 276       return False
 277
 278   def verify(self):
 279     # initialize the progress bar
 280     self.progressbar.set_fraction(0)
 281     self.progressbar.set_text('Verifying Signature')
 282     self.progressbar.show()
 283     self.progressbar_is_pulsing = True
 284     self.timer = gobject.timeout_add(1, self.progressbar_pulse)
 285
 286     error = False
 287
 288     verify_output = subprocess.check_output([self.paths['file']['verify'], self.paths['dir']['gpg'], self.paths['file']['tarball_sig']], stderr=subprocess.STDOUT)
 289     if 'Good signature' in verify_output:
 290       self.progressbar_is_pulsing = False
 291       self.run_task();
 292     else:
 293       error = True
 294
 295     if error:
 296       self.progressbar_is_pulsing = False
 297       self.label = "Signature verification failed!"
 298
 299   def extract(self):
 300     # initialize the progress bar
 301     self.progressbar.set_fraction(0)
 302     self.progressbar.set_text('Installing')
 303     self.progressbar.show()
 304     self.progressbar_is_pulsing = True
 305     self.timer = gobject.timeout_add(1, self.progressbar_pulse)
 306
 307     subprocess.call(['tar', '-xf', self.paths['file']['tarball'], '-C', self.paths['dir']['tbb']])
 308
 309     self.progressbar_is_pulsing = False
 310     self.run_task();
 311
 312   def run(self, run_next_task = True):
 313     subprocess.Popen([self.paths['file']['start']])
 314     if run_next_task:
 315       self.run_task();
 316
 317   # exit
 318   def delete_event(self, widget, event, data=None):
 319     return False
 320   def destroy(self, widget, data=None):
 321     if self.timer:
 322       gobject.source_remove(self.timer)
 323     self.timer = False
 324
 325     gtk.main_quit()
 326
 327 if __name__ == "__main__":
 328   print 'Tor Browser Launcher'
 329   print 'https://github.com/micahflee/torbrowser-launcher'
 330
 331   current_tbb_version = '2.3.25-2'
 332   app = TorBrowserLauncher(current_tbb_version)
 333