mirror of
https://github.com/borekon/Blocklists.git
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127 lines
3.0 KiB
Bash
127 lines
3.0 KiB
Bash
#!/bin/bash
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##
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## Configuration
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##
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# Files which should be downloaded
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TO_DOWNLOAD[0]="http://lists.blocklist.de/lists/ftp.txt"
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#TO_DOWNLOAD[1]="http://lists.blocklist.de/lists/bots.txt"
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#TO_DOWNLOAD[2]="http://lists.blocklist.de/lists/ssh.txt"
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TO_DOWNLOAD[1]="http://lists.blocklist.de/lists/bruteforcelogin.txt"
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TO_DOWNLOAD[2]="http://lists.blocklist.de/lists/apache.txt"
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# Other settings; Edit if necesarry
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CHAINNAME="blocklist-de"
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ACTION="REJECT" # Can be DROP
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PRINT_REPORT=1
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########## Do not edit anything below this line ##########
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#
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## Needed variables
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#
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started=`date`
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version="1.0.0"
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amountDownloaded=0
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amountAfterSortAndUnique=0
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amountInserted=0
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amountDeleted=-1
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fileUnfiltered="/tmp/blocklist-ips-unfiltered.txt"
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fileFiltered="/tmp/blocklist-ips-filtered.txt"
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#
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## Download every file and concat to one file
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#
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for currentFile in "${TO_DOWNLOAD[@]}"
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do
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wget -qO - $currentFile >> $fileUnfiltered
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done
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#
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## Sort and filter
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#
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cat $fileUnfiltered | sort | uniq > $fileFiltered
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amountDownloaded=`cat $fileUnfiltered | wc -l`
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amountAfterSortAndUnique=`cat $fileFiltered | wc -l`
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#
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## Create chain if it does not exist
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#
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iptables --new-chain $CHAINNAME >/dev/null 2>&1
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# Insert rule (if necesarry) into INPUT chain so the chain above will also be used
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if [ `iptables -L INPUT | grep $CHAINNAME | wc -l` -eq 0 ]
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then
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# Insert rule because it is not present
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iptables -I INPUT -j $CHAINNAME
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fi
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#
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## Insert all IPs from the downloaded list if there is no rule stored
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#
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while read currentIP
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do
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# Check via command
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iptables -C $CHAINNAME -s $currentIP -j $ACTION >/dev/null 2>&1
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# Now we have to check the exit code of iptables via $?
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#
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# 0 = rule exists and don't has to be stored again
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# 1 = rule does not exist and has to be stored
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if [ $? -eq 1 ]
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then
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# Append the IP
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iptables -A $CHAINNAME -s $currentIP -j $ACTION >/dev/null 2>&1
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# Increment the counter
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amountInserted=$((amountInserted + 1))
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fi
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done < $fileFiltered
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## Now we delete the IPs which are stored in iptables but not anymore in the list
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while read currentIP
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do
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# Check if the ip is in the downloaded list
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if [ `cat $fileFiltered | grep $currentIP | wc -l` -eq 0 ]
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then
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# Delete the rule by its rulenumber
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# Because changing the action would result in errors
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iptables -D $CHAINNAME -s $currentIP -j $ACTION >/dev/null 2>&1
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# Increment the counter
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amountDeleted=$((amountDeleted + 1))
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fi
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done <<< "`iptables -n -L blocklist-de | awk '{print $4}'`"
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## Print report
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if [ $PRINT_REPORT -eq 1 ]
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then
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echo "--- Blockliste.de :: Update-Report"
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echo ""
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echo "Script Version: $version"
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echo "Started: $started"
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echo "Finished: `date`"
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echo ""
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echo "--> Downloaded IPs: $amountDownloaded"
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echo "--> Unique IPs: $amountAfterSortAndUnique"
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echo "--> Inserted: $amountInserted"
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echo "--> Deleted: $amountDeleted"
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fi
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#
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## Cleanup
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#
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rm -f /tmp/blocklist-ips-unfiltered.txt
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rm -f /tmp/blocklist-ips-filtered.txt |