Exiting data over tunnels is only allowed after opt-in via settings

Tribler/Core/Libtorrent/LibtorrentDownloadImpl.py

@@ -266,7 +266,13 @@ def create_engine_wrapper(self, lm_network_engine_wrapper_created_callback, psta
             if not self.cew_scheduled:
                 self.ltmgr = self.session.lm.ltmgr
                 dht_ok = not isinstance(self.tdef, TorrentDefNoMetainfo) or self.ltmgr.is_dht_ready()
-                session_ok = self.ltmgr.tunnels_ready(self) == 1
+                tunnel_community = self.ltmgr.trsession.lm.tunnel_community
+                if tunnel_community:
+                    tunnels_ready = tunnel_community.tunnels_ready(self.get_hops(), self.get_def().is_anonymous())
+                else:
+                    tunnels_ready = 1
+
+                session_ok = tunnels_ready == 1
 
                 if not self.ltmgr or not dht_ok or not session_ok:
                     self._logger.info(u"LTMGR/DHT/session not ready, rescheduling create_engine_wrapper")
@@ -892,7 +898,11 @@ def network_get_state(self, usercallback, getpeerlist, sessioncalling=False):
                 if self.dlstate != DLSTATUS_CIRCUITS:
                     progress = self.progressbeforestop
                 else:
-                    progress = self.ltmgr.tunnels_ready(self)
+                    tunnel_community = self.ltmgr.trsession.lm.tunnel_community
+                    if tunnel_community:
+                        progress = tunnel_community.tunnels_ready(self.get_hops(), self.get_def().is_anonymous())
+                    else:
+                        progress = 1
                 ds = DownloadState(self, self.dlstate, self.error, progress)
             else:
                 (status, stats, seeding_stats, logmsgs) = self.network_get_stats(getpeerlist)

Tribler/Core/Libtorrent/LibtorrentMgr.py

@@ -126,22 +126,6 @@ def get_session(self, hops=0):
 
         return self.ltsessions[hops]
 
-    def tunnels_ready(self, download):
-        hops = download.get_hops()
-        if hops > 0:
-            tunnel_community = self.trsession.lm.tunnel_community
-            if tunnel_community:
-                if download.get_def().is_anonymous():
-                    current_hops = tunnel_community.circuits_needed.get(hops, 0)
-                    tunnel_community.circuits_needed[hops] = max(1, current_hops)
-                    return bool(tunnel_community.active_data_circuits(hops))
-                else:
-                    tunnel_community.circuits_needed[hops] = tunnel_community.settings.max_circuits
-                    return min(1, len(tunnel_community.active_data_circuits(hops)) /
-                               float(tunnel_community.settings.min_circuits))
-            return 0
-        return 1
-
     def shutdown(self):
         # Save DHT state
         dhtstate_file = open(os.path.join(self.trsession.get_state_dir(), DHTSTATE_FILENAME), 'w')

Tribler/Core/SessionConfig.py

@@ -190,6 +190,22 @@ def get_tunnel_community_socks5_listen_ports(self):
         path = u'tunnel_community~socks5_listen_ports~'
         return [self._get_random_port(path + unicode(index)) if port < 0 else port for index, port in enumerate(ports)]
 
+    def set_tunnel_community_hs_timeout_switch(self, value):
+        self.sessconfig.set(u'tunnel_community', u'hs_timeout_switch', value)
+
+    def get_tunnel_community_hs_timeout_switch(self):
+        """ Returns whether hidden services switch to anonymous downloading on timeout
+        @return Boolean. """
+        return self.sessconfig.get(u'tunnel_community', u'hs_timeout_switch')
+
+    def set_tunnel_community_exitnode_enabled(self, value):
+        self.sessconfig.set(u'tunnel_community', u'exitnode_enabled', value)
+
+    def get_tunnel_community_exitnode_enabled(self):
+        """ Returns whether being an exitnode is allowed
+        @return Boolean. """
+        return self.sessconfig.get(u'tunnel_community', u'exitnode_enabled')
+
     def get_listen_port(self):
         """ Returns the current UDP/TCP listen port.
         @return Port number. """

Tribler/Core/defaults.py

@@ -32,7 +32,7 @@
 #  Version 2: as released in Tribler 4.5.0
 #  Version 3: cleanup unused params
 #  Version 4: remove swift
-#
+#  Version 7: exitnode optin switch added
 
 SESSDEFAULTS_VERSION = 7
 sessdefaults = OrderedDict()
@@ -73,6 +73,9 @@
 sessdefaults['tunnel_community']['optin_dialog_shown'] = False
 sessdefaults['tunnel_community']['enabled'] = False
 sessdefaults['tunnel_community']['socks5_listen_ports'] = [-1] * 5
+sessdefaults['tunnel_community']['exitnode_enabled'] = False
+sessdefaults['tunnel_community']['hs_timeout_switch'] = True
+
 
 # Mainline DHT settings
 sessdefaults['mainline_dht'] = OrderedDict()

Tribler/Main/tribler_main.py

@@ -127,6 +127,7 @@
 SKIP_TUNNEL_DIALOG = os.environ.get("TRIBLER_SKIP_OPTIN_DLG", "False") == "True"
 # used by the anon tunnel tests as there's no way to mess with the Session before running the test ATM.
 FORCE_ENABLE_TUNNEL_COMMUNITY = False
+TUNNEL_COMMUNITY_DO_TEST = True
 
 #
 #
@@ -519,7 +520,8 @@ def define_communities(*args):
             if self.sconfig.get_tunnel_community_enabled():
                 keypair = dispersy.crypto.generate_key(u"curve25519")
                 dispersy_member = dispersy.get_member(private_key=dispersy.crypto.key_to_bin(keypair),)
-                settings = TunnelSettings(session.get_install_dir())
+                settings = TunnelSettings(session.get_install_dir(), tribler_session=session)
+                settings.do_test = TUNNEL_COMMUNITY_DO_TEST
                 tunnel_kwargs = {'tribler_session': session, 'settings': settings}
 
                 self.tunnel_community = dispersy.define_auto_load(HiddenTunnelCommunity, dispersy_member, load=True,

Tribler/Main/vwxGUI/MainFrame.py

@@ -614,8 +614,8 @@ def do_gui():
     def monitorHiddenSerivcesProgress(self, ds, tdef, dscfg, selectedFiles):
         if ds.get_status() in [DLSTATUS_ALLOCATING_DISKSPACE, DLSTATUS_HASHCHECKING, DLSTATUS_WAITING4HASHCHECK]:
             return (5.0, True)
-
-        if ds.get_current_speed(DOWNLOAD) == 0:
+        
+        if ds.get_current_speed(DOWNLOAD) == 0 and self.utility.session.get_tunnel_community_hs_timeout_switch():
             download = ds.get_download()
             self.utility.session.remove_download(download)
 

Tribler/Main/vwxGUI/home.py

@@ -648,8 +648,8 @@ def AddComponents(self):
         self.circuit_list.InsertColumn(0, 'ID', wx.LIST_FORMAT_LEFT, 25)
         self.circuit_list.InsertColumn(1, 'Online', wx.LIST_FORMAT_RIGHT, 50)
         self.circuit_list.InsertColumn(2, 'Hops', wx.LIST_FORMAT_RIGHT, 45)
-        self.circuit_list.InsertColumn(3, u'Bytes \u2191', wx.LIST_FORMAT_RIGHT, 63)
-        self.circuit_list.InsertColumn(4, u'Bytes \u2193', wx.LIST_FORMAT_RIGHT, 63)
+        self.circuit_list.InsertColumn(3, u'Bytes \u2191', wx.LIST_FORMAT_RIGHT, 83)
+        self.circuit_list.InsertColumn(4, u'Bytes \u2193', wx.LIST_FORMAT_RIGHT, 83)
         self.circuit_list.InsertColumn(5, 'Uptime', wx.LIST_FORMAT_RIGHT, 54)
         self.circuit_list.setResizeColumn(0)
         self.circuit_list.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnItemSelected)
@@ -660,7 +660,8 @@ def AddComponents(self):
             self.log_text = wx.TextCtrl(self, style=wx.TE_MULTILINE | wx.BORDER_SIMPLE | wx.HSCROLL & wx.VSCROLL)
             self.log_text.SetEditable(False)
             self.log_text.Show(self.fullscreen)
-            self.num_circuits_label = wx.StaticText(self, -1, "You have 0 circuit(s); 0 relay(s); 0 exit socket(s)")
+            self.num_circuits_label = wx.StaticText(self, -1, "You have 0 circuit(s); 0 relay(s); \
+                0 exit socket(s); 0 candidate(s)")
 
         self.vSizer = wx.BoxSizer(wx.VERTICAL)
         self.vSizer.Add(self.circuit_list, 1, wx.EXPAND | wx.RESERVE_SPACE_EVEN_IF_HIDDEN, 0)
@@ -697,10 +698,11 @@ def OnUpdateCircuits(self, event):
             return
 
         if self.fullscreen:
-            self.num_circuits_label.SetLabel("You have %d circuit(s); %d relay(s); %d exit socket(s)" %
+            self.num_circuits_label.SetLabel("You have %d circuit(s); %d relay(s); %d exit socket(s); %d candidate(s)" %
                                              (len(self.tunnel_community.circuits),
                                               len(self.tunnel_community.relay_from_to),
-                                              len(self.tunnel_community.exit_sockets)))
+                                              len(self.tunnel_community.exit_sockets),
+                                              sum(1 for _ in self.tunnel_community.dispersy_yield_verified_candidates())))
 
         new_circuits = dict(self.tunnel_community.circuits)
         self.circuits = {k: v for k, v in new_circuits.iteritems() if v.goal_hops == self.hops or self.hops < 0}

Tribler/Main/vwxGUI/settingsDialog.py

@@ -90,12 +90,14 @@ def __init__(self):
         self._bandwidth_panel, self._bandwidth_id = self.__create_s3(tree_root, hsizer)
         self._seeding_panel, self._seeding_id = self.__create_s4(tree_root, hsizer)
         self._experimental_panel, self._experimental_id = self.__create_s5(tree_root, hsizer)
+        self._tunnel_panel, self._tunnel_id = self.__create_s6(tree_root, hsizer)
 
         self._general_panel.Show(True)
         self._conn_panel.Show(False)
         self._bandwidth_panel.Show(False)
         self._seeding_panel.Show(False)
         self._experimental_panel.Show(False)
+        self._tunnel_panel.Show(False)
 
         self._save_btn = wx.Button(self, wx.ID_OK, label="Save")
         self._cancel_btn = wx.Button(self, wx.ID_CANCEL, label="Cancel")
@@ -207,6 +209,16 @@ def saveAll(self, event):
             self.utility.write_config('use_webui', useWebUI)
             restart = True
 
+        becomeExitNode = self._become_exitnode.IsChecked()
+        if becomeExitNode != scfg.get_tunnel_community_exitnode_enabled():
+            scfg.set_tunnel_community_exitnode_enabled(becomeExitNode)
+            restart = True
+
+        switchHsOnTimeout = self._switch_hs_timeout.IsChecked()
+        if switchHsOnTimeout != scfg.get_tunnel_community_hs_timeout_switch():
+            scfg.set_tunnel_community_hs_timeout_switch(switchHsOnTimeout)
+            restart = True
+
         valwebuiport = self._webui_port.GetValue()
         if valwebuiport != str(self.utility.read_config('webui_port')):
             self.utility.write_config('webui_port', valwebuiport)
@@ -353,6 +365,7 @@ def saveDefaultDownloadConfig(self, scfg):
 
         scfg.save(cfgfilename)
 
+
     def moveCollectedTorrents(self, old_dir, new_dir):
         def rename_or_merge(old, new, ignore=True):
             if os.path.exists(old):
@@ -729,3 +742,26 @@ def __create_s5(self, tree_root, sizer):
         self._webui_port.SetValue(str(self.utility.read_config('webui_port')))
 
         return exp_panel, item_id
+
+
+    def __create_s6(self, tree_root, sizer):
+        exp_panel, exp_vsizer = create_section(self, sizer, "Anonimity")
+
+        item_id = self._tree_ctrl.AppendItem(tree_root, "Anonimity", data=wx.TreeItemData(exp_panel))
+
+        exp_s1_sizer = create_subsection(exp_panel, exp_vsizer, "Relaying", 1, 3)
+        self._become_exitnode = wx.CheckBox(exp_panel, label="Allow being an exit node")
+        exp_s1_sizer.Add(self._become_exitnode, 0, wx.EXPAND)
+        self._switch_hs_timeout = wx.CheckBox(exp_panel, label="Switch from hidden services to exit nodes")
+        exp_s1_sizer.Add(self._switch_hs_timeout, 0, wx.EXPAND)
+
+        exp_s1_faq_text = wx.StaticText(
+            exp_panel, label="By allowing Tribler to be an exit node, it's possible to become a proxy for someone elses traffic. \nThis may cause problems in some countries.")
+        exp_vsizer.Add(exp_s1_faq_text, 0, wx.EXPAND | wx.TOP, 10)
+
+        # load values
+        self._become_exitnode.SetValue(self.utility.session.get_tunnel_community_exitnode_enabled())
+        self._switch_hs_timeout.SetValue(self.utility.session.get_tunnel_community_hs_timeout_switch())
+
+
+        return exp_panel, item_id

Tribler/Test/test_as_server.py

@@ -99,6 +99,7 @@ def tearDown(self, annotate=True):
             for dc in delayed_calls:
                 self._logger.debug(">     %s" % dc)
         self.assertFalse(delayed_calls, "The reactor was dirty when tearing down the test")
+        self.assertFalse(Session.has_instance(), 'A session instance is still present when tearing down the test')
 
     def tearDownCleanup(self):
         self.setUpCleanup()
@@ -301,6 +302,7 @@ class TestGuiAsServer(TestAsServer):
     """
 
     def setUp(self):
+        self.assertFalse(Session.has_instance(), 'A session instance is already present when setting up the test')
         AbstractServer.setUp(self, annotate=False)
 
         self.app = wx.GetApp()