Use external service to retrieve host's IP address.

Should display a proper IP for users behind NAT (like a home router), for example.

mtprotoproxy.py

@@ -3,6 +3,7 @@
 import asyncio
 import socket
 import urllib.parse
+import urllib.request
 import collections
 import time
 import hashlib
@@ -226,17 +227,12 @@ async def stats_printer():
 
 
 def print_tg_info():
-    my_ip = socket.gethostbyname(socket.gethostname())
-
-    octets = [int(o) for o in my_ip.split(".")]
-
-    ip_is_local = (len(octets) == 4 and (
-        octets[0] in [127, 10] or
-        octets[0:2] == [192, 168] or
-        (octets[0] == 172 and 16 <= octets[1] <= 31)))
-
-    if ip_is_local:
-        my_ip = "YOUR_IP"
+    try:
+        with urllib.request.urlopen('https://ifconfig.co/ip') as f:
+            if f.status != 200: raise Exception("Invalid status code")
+            my_ip = f.read().strip()
+    except:
+        my_ip = 'YOUR_IP'
 
     for user, secret in USERS.items():
         params = {