WIP Limit one chat every 30 seconds per IP

chat/server.py

@@ -1,8 +1,12 @@
+import calendar
 import logging
 import subprocess
+from datetime import datetime, timedelta
 
+import redis
 from flask import Flask, request
 
+conn = redis.Redis('localhost')
 app = Flask(__name__)
 
 
@@ -15,6 +19,12 @@ def setup_logging():
 @app.route('/chat/', methods=['POST'])
 def send_chat():
     if request.method == 'POST':
+        ip = request.headers.get('X-Forwarded-For', request.remote_addr)
+        recent_ips = conn.hgetall("minecraft_chat_recent_ips")
+        now = datetime.utcnow()
+        if ip in recent_ips:
+            if (now - datetime.fromutctimestamp(recent_ips[ip])) > timedelta.seconds(30):
+                recent_ips[ip] = calendar.timegm(now.utctimetuple())
         if request.form.get('email', None):
             return 'Text was entered into honeypot!', 200
         if not request.form.get('say-text', None):
@@ -27,5 +37,6 @@ def send_chat():
                              '/say {}\015'.format(request.form['say-text'])])
         return 'Sending chat: ' + request.form.get('say-username', '') + ': ' + request.form['say-text']
 
+
 if __name__ == "__main__":
     app.run(host='0.0.0.0', port="8888")