dbip-city-lite url changes, get latest url from download page

pandora/app/config.py

@@ -1,12 +1,13 @@
 # -*- coding: utf-8 -*-
 from __future__ import division, print_function, absolute_import
 
+import codecs
 import os
-import sys
+import re
 import shutil
 import subprocess
+import sys
 import time
-import codecs
 from os.path import dirname, exists, join
 from glob import glob
 
@@ -399,12 +400,18 @@ def update_geoip(force=False):
     path = os.path.join(settings.GEOIP_PATH, 'GeoLite2-City.mmdb')
     if not os.path.exists(path) or force:
         url = 'http://geolite.maxmind.com/download/geoip/database/GeoLite2-City.mmdb.gz'
-        url = 'https://download.db-ip.com/free/dbip-city-lite-2020-01.mmdb.gz'
-        print('download', url)
-        ox.net.save_url(url, "%s.gz" % path)
-        if os.path.exists(path):
-            os.unlink(path)
-        os.system('gunzip "%s.gz"' % path)
+        index = ox.net.read_url('https://db-ip.com/db/download/ip-to-country-lite').decode()
+        match = re.compile('href=[\'"](http.*.mmdb.gz)').findall(index)
+        if match:
+            url = match[0]
+            print(url)
+            print('download', url)
+            ox.net.save_url(url, "%s.gz" % path)
+            if os.path.exists(path):
+                os.unlink(path)
+            os.system('gunzip "%s.gz"' % path)
+        else:
+            print('failed to download dbip-country-lite-2020-03.mmdb.gz')
 
 def init():
     if not settings.RELOADER_RUNNING: