merging dshield and blacklist cron together

conf/blacklist

@@ -1,5 +1,9 @@
 # I found this script somewhere a long time ago and modified it
 #!/bin/bash
+IPTABLES=/sbin/iptables
+URL=http://feeds.dshield.org/block.txt
+FILE=/tmp/dshield_block.text
+CHAIN=dshield
 IP_TMP=/tmp/ip.tmp
 IP_BLACKLIST=/etc/ip-blacklist.conf
 IP_BLACKLIST_TMP=/tmp/ip-blacklist.tmp
@@ -42,5 +46,63 @@ do
         ipset add blacklist $ip
 done
 
+# Written by Onder Vincent Koc
+# @url: https://github.com/koconder/dshield_automatic_iptables
+# @credits: http://wiki.brokenpoet.org/wiki/Get_DShield_Blocklist
+#
+# Dshield Automatic Import to iptables
+# Import Dshield Blocklist in a basic shell script which will run silently via cron
+# and also use a seprate chain file to support other iptables rules without flushing
+# i.e. fail2ban and ddosdeflate
+
+
+
+# check to see if the chain already exists
+$IPTABLES -L $CHAIN -n
+
+# check to see if the chain already exists
+if [ $? -eq 0 ]; then
+
+    # flush the old rules
+    $IPTABLES -F $CHAIN
+
+    echo "Flushed old rules. Applying updated dshield list...."    
+
+else
+
+    # create a new chain set
+    $IPTABLES -N $CHAIN
+
+    # tie chain to input rules so it runs
+    $IPTABLES -A INPUT -j $CHAIN
+
+    # don't allow this traffic through
+    $IPTABLES -A FORWARD -j $CHAIN
+
+    echo "Chain not detected. Creating new chain and adding dshield list...."
+
+fi;
+
+# get a copy of the spam list
+wget -qc $URL -O $FILE
+
+blocklist=$( cat $FILE | awk '/^[0-9]/' | awk '{print $1"/"$3}'| sort -n)
+for IP in $blocklist
+do
+    # add the ip address log rule to the chain
+    $IPTABLES -A $CHAIN -p 0 -s $IP -j LOG --log-prefix "[dshield BLOCK]" -m limit --limit 3/min --limit-burst 10
+
+    # add the ip address to the chain
+    $IPTABLES -A $CHAIN -p 0 -s $IP -j DROP
+
+    echo $IP
+done
+
+echo "Done!"
+
+# remove the spam list
+unlink $FILE
+
+# Persistence 
 ipset save > /etc/ipset.up.rules
 iptables-save > /etc/iptables.up.rules