torbrowser-launcher

   1 #!/usr/bin/env python
   2
   3 import os, sys, subprocess, locale, urllib2, gobject, time
   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(0.01)
 163       self.box.pack_start(self.progressbar, True, True, 0)
 164
 165       # button box
 166       self.button_box = gtk.HButtonBox()
 167       self.button_box.set_layout(gtk.BUTTONBOX_SPREAD)
 168       self.box.pack_start(self.button_box, True, True, 0)
 169       self.button_box.show()
 170
 171       # start button
 172       self.start_button = gtk.Button("Start")
 173       self.start_button.connect("clicked", self.start, None)
 174       self.button_box.add(self.start_button)
 175       self.start_button.show()
 176
 177       # exit button
 178       self.exit_button = gtk.Button("Exit")
 179       self.exit_button.connect("clicked", self.destroy, None)
 180       self.button_box.add(self.exit_button)
 181       self.exit_button.show()
 182
 183     self.box.show()
 184     self.window.show();
 185
 186   # start button clicked, begin tasks
 187   def start(self, widget, data=None):
 188     # disable the start button
 189     self.start_button.set_sensitive(False)
 190
 191     # start running tasks
 192     self.gui_task_i = 0
 193     self.run_task()
 194
 195   # run the next task in the task list
 196   def run_task(self):
 197     if self.gui_task_i >= len(self.gui_tasks):
 198       self.destroy(False)
 199       return
 200
 201     task = self.gui_tasks[self.gui_task_i]
 202
 203     # get ready for the next task
 204     self.gui_task_i += 1
 205
 206     if task == 'download_tarball':
 207       print 'Downloading '+self.paths['url']['tarball']
 208       self.download('tarball', self.paths['url']['tarball'], self.paths['file']['tarball'])
 209
 210     elif task == 'download_tarball_sig':
 211       print 'Downloading '+self.paths['url']['tarball_sig']
 212       self.download('signature', self.paths['url']['tarball_sig'], self.paths['file']['tarball_sig'])
 213
 214     elif task == 'verify':
 215       print 'Verifying signature'
 216       self.verify()
 217
 218     elif task == 'extract':
 219       print 'Extracting '+self.paths['filename']['tarball']
 220       self.extract()
 221
 222     elif task == 'run':
 223       print 'Running '+self.paths['file']['start']
 224       self.run()
 225
 226
 227   def download(self, name, url, path):
 228     # initialize the progress bar
 229     self.progressbar.set_fraction(0)
 230     self.progressbar.set_text('Downloading '+name)
 231     self.progressbar.show()
 232
 233     # start the download
 234     self.dl_response = urllib2.urlopen(url);
 235     self.dl_total_size = self.dl_response.info().getheader('Content-Length').strip()
 236     self.dl_total_size = int(self.dl_total_size)
 237     self.dl_bytes_so_far = 0
 238
 239     # set a timer to download more chunks
 240     self.timer = gobject.timeout_add(1, self.download_chunk, name)
 241
 242     # open a file to write to
 243     self.file_download = open(path, 'w')
 244
 245   def download_chunk(self, name):
 246     # download 10kb a time
 247     chunk = self.dl_response.read(10240)
 248     self.dl_bytes_so_far += len(chunk)
 249     self.file_download.write(chunk)
 250
 251     if not chunk:
 252       self.file_download.close()
 253       # next task!
 254       self.run_task()
 255       return False
 256
 257     percent = float(self.dl_bytes_so_far) / self.dl_total_size
 258     self.progressbar.set_fraction(percent)
 259     percent = round(percent*100, 2)
 260     self.progressbar.set_text("Downloaded %d%% of %s" % (percent, name))
 261
 262     sys.stdout.write("Downloaded %d of %d bytes (%0.2f%%)\r" % (self.dl_bytes_so_far, self.dl_total_size, percent))
 263
 264     if self.dl_bytes_so_far >= self.dl_total_size:
 265       sys.stdout.write('\n')
 266
 267     return True
 268
 269   def verify(self):
 270     # initialize the progress bar
 271     self.progressbar.set_fraction(0)
 272     self.progressbar.set_text('Verifying Signature')
 273     self.progressbar.show()
 274
 275     p = subprocess.Popen([self.paths['file']['verify'], self.paths['dir']['gpg'], self.paths['file']['tarball_sig']], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
 276     self.pulse_until_process_exits(p)
 277
 278     output = p.stdout.read()
 279
 280     if 'Good signature' in output:
 281       self.run_task();
 282     else:
 283       self.label = "Signature verification failed!"
 284
 285   def extract(self):
 286     # initialize the progress bar
 287     self.progressbar.set_fraction(0)
 288     self.progressbar.set_text('Installing')
 289     self.progressbar.show()
 290
 291     p = subprocess.Popen(['tar', '-xf', self.paths['file']['tarball'], '-C', self.paths['dir']['tbb']], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
 292     self.pulse_until_process_exits(p)
 293
 294     self.run_task();
 295
 296   def run(self, run_next_task = True):
 297     subprocess.Popen([self.paths['file']['start']])
 298     if run_next_task:
 299       self.run_task();
 300
 301   # make the progress bar pulse until process p (a Popen object) finishes
 302   def pulse_until_process_exits(self, p):
 303     while p.poll() == None:
 304       time.sleep(0.01)
 305       self.progressbar.pulse()
 306       # redraw gtk
 307       while gtk.events_pending():
 308          gtk.main_iteration(False)
 309
 310   # exit
 311   def delete_event(self, widget, event, data=None):
 312     return False
 313   def destroy(self, widget, data=None):
 314     if self.timer:
 315       gobject.source_remove(self.timer)
 316     self.timer = False
 317
 318     gtk.main_quit()
 319
 320 if __name__ == "__main__":
 321   print 'Tor Browser Launcher'
 322   print 'https://github.com/micahflee/torbrowser-launcher'
 323
 324   current_tbb_version = '2.3.25-2'
 325   app = TorBrowserLauncher(current_tbb_version)
 326