add unban.py for gateway target

gateway/usr/share/eterban/unban.py

+#!/usr/bin/python3
+
+import redis
+import sys
+import configparser
+import os
+import socket
+
+def get_settings (path_to_config):
+    if not os.path.exists(path_to_config):
+        print("Missed config file")
+        sys.exit()
+
+    config = configparser.ConfigParser()
+    config.read(path_to_config)
+
+    # Читаем некоторые значения из конфиг. файла.
+    redis_server = config.get("Settings", "redis_server", fallback = "localhost")
+    hostname = config.get("Settings", "hostname", fallback = socket.gethostname())
+    return (redis_server, hostname)
+
+path_to_config = '/etc/eterban/settings.ini'
+redis_server, hostname = get_settings (path_to_config)
+
+
+if len(sys.argv) > 1:
+    ip=sys.argv[1]
+else:
+    ip=""
+
+if not ip:
+    print("Run with IP arg")
+    sys.exit()
+
+try:
+    r = redis.Redis (host=redis_server)
+    r.publish ('unban', ip)
+    message = ip + " was unblocked by admin on " + hostname
+    r.publish ('by', message)
+except:
+    print("Error with connect to redis " + redis_server)