From 635b6d9c9bb413b720f94ee2e476b8f44805237e Mon Sep 17 00:00:00 2001
From: Franziska Kunsmann <hi@kunsmann.eu>
Date: Fri, 21 Jun 2019 11:00:21 +0200
Subject: [PATCH] add wifi autoreconnect script

---
 .bin/wlan-autoreconnect.py | 101 +++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 .bin/wlan-autoreconnect.py

diff --git a/.bin/wlan-autoreconnect.py b/.bin/wlan-autoreconnect.py
new file mode 100644
index 0000000..06c5b2b
--- /dev/null
+++ b/.bin/wlan-autoreconnect.py
@@ -0,0 +1,101 @@
+#!/usr/bin/python3
+
+import psutil
+import time
+import sys
+import logging
+import subprocess
+import requests
+import socket
+import netifaces
+from netaddr import IPNetwork, IPAddress
+
+# Threshold in KB
+threshold = 100*1000
+
+# Interface
+interface = 'wlp4s0'
+
+
+
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s [%(threadName)-12.12s] [%(levelname)-5.5s]  %(message)s",
+    handlers=[
+        logging.StreamHandler()
+    ])
+log = logging.getLogger(__name__)
+
+last_traffic = 0
+
+if interface not in netifaces.interfaces():
+    log.error(interface + ' was not found')
+    sys.exit(1)
+
+while True:
+    traffic = psutil.net_io_counters(pernic=True)[interface]
+
+    traffic_wifi = int((traffic.bytes_sent + traffic.bytes_recv)/1024)
+
+    log.info('Traffic on ' + interface + ': ' + str(traffic_wifi) + ' KB')
+
+    if (traffic_wifi - last_traffic) > threshold or traffic_wifi < last_traffic:
+        log.warning('Traffic since last mac change above threshold (or traffic counter changed strangely), changing MAC')
+
+        last_traffic = traffic_wifi
+
+        subprocess.run(['ip', 'link', 'set', interface, 'down'])
+        subprocess.run(['macchanger', '-r', interface])
+        subprocess.run(['ip', 'link', 'set', interface, 'up'])
+
+        timeout = time.time()+20
+        ip = "0.0.0.0"
+
+        while True:
+            try:
+                s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+                s.connect(('10.255.255.255', 1))
+
+                ip = s.getsockname()[0]
+                
+                log.info('Got IPv4 ' + ip)
+
+                s.close()
+                
+                break
+            except:
+                time.sleep(1)
+
+            if time.time() >= timeout:
+                log.error('Timeout while waiting for IP address')
+                break
+
+        if IPAddress(ip) in IPNetwork("172.18.0.0/16"):
+            headers = {
+                    'Host': 'www.wifionice.de', 
+                    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; irv:58.0) Gecko/20100101 Firefox/58.0',
+                    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
+                    'Accept-Language': 'en-US,en;q=0.5',
+                    'Referer': 'http://www.wifionice.de/',
+                    'Content-Type': 'application/x-www-form-urlencoded',
+                    'Cookie': 'csrf=42',
+                    'Connection': 'keep-alive',
+                    'Upgrade-Insecure-Requests': '1'
+                }
+            try:
+                log.info('Trying login to WIFIonICE in 5 seconds ...')
+
+                time.sleep(5)
+                
+                r = requests.post('http://www.wifionice.de/de/', data={'login': 'true', 'CSRFToken': '42', 'connect': ''}, headers=headers, timeout=15)
+
+                if r.status_code == 200:
+                    log.info('Logged in to WIFIonICE')
+                else:
+                    log.warning('Logging in failed, got status code ' + str(r,status_code))
+            except requests.exceptions.ConnectTimeout:
+                log.error('Timeout while trying to login, visit http://www.wifionice.de/ to check')
+            except:
+                log.error('Error while trying to log in')
+
+    time.sleep(10)