fix: error when no ipv4/6

tools.py

@@ -96,6 +96,11 @@ def set_panel_username(username=None):
         username = mw.getRandomString(8).lower()
         sql.table('users').where('id=?', (1,)).setField('username', username)
     print('username: ' + username)
+    
+def getServerIp():
+    version = sys.argv[2]
+    ip = mw.execShell("curl -{} -sS --connect-timeout 5 -m 60 https://v6r.ipip.net/?format=text".format(version))
+    return ip[0]
 
 
 if __name__ == "__main__":
@@ -106,5 +111,7 @@ if __name__ == "__main__":
         set_panel_pwd(sys.argv[2])
     elif type == 'username':
         set_panel_username()
+    elif type == 'getServerIp':
+        getServerIp()
     else:
         print('ERROR: Parameter error')