only go online if we can connect via tor

oml/utils.py

@@ -386,10 +386,14 @@ def can_connect_dns(host="8.8.8.8", port=53):
         host: 8.8.8.8 (google-public-dns-a.google.com)
         port: 53/tcp
     """
+    import socks
+    import state
     try:
-        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-        s.settimeout(1)
-        s.connect((host, port))
+        sock = socks.socksocket(socket.AF_INET, socket.SOCK_STREAM, 6)
+        sock.settimeout(1)
+        socks_port = state.tor.socks_port if state.tor else 9150
+        sock.set_proxy(socks.SOCKS5, "localhost", socks_port, True)
+        sock.connect((host, port))
         return True
     except:
         pass