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Don't exit if mail command not found
Sending mail is not mandatory, so removed the exit when mail command is not found
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@ -11,20 +11,21 @@ IPSET_PATH="/sbin/ipset"
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SORT_PATH="/usr/bin/sort"
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MAIL_PATH="/usr/bin/mail"
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GREP_PATH="/bin/grep"
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MAIL=1
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if [ -f $IPTABLES_PATH ]; then echo "iptables OK"; else echo "Cannot find [ iptables ]. Is it installed? Exiting"; exit 1; fi;
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#hash iptables 2>/dev/null || { echo >&2 "I require iptables but it's not installed. Aborting."; exit 1; }
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#more in https://stackoverflow.com/questions/592620/how-can-i-check-if-a-program-exists-from-a-bash-script
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if [ -f $IPSET_PATH ]; then echo "ipset OK"; else echo "Cannot find [ ipset ]. Is it installed? Exiting"; exit 1; fi;
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if [ -f $SORT_PATH ]; then echo "sort OK"; else echo "Cannot find [ sort ]. Is it installed? Exiting"; exit 1; fi;
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if [ -f $MAIL_PATH ]; then echo "mail OK"; else echo "Cannot find [ mail ]. Is it installed? Try apt install bsd-mailx. Exiting"; exit 1; fi;
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if [ -f $MAIL_PATH ]; then echo "mail OK"; else echo "Cannot find [ mail ]. Is it installed? No mail report will be sent"; MAIL=0; fi;
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if [ ! -f $GREP_PATH ]; then echo "Cannot find [ grep ]. Is it installed? Exiting"; exit 1; fi;
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# E-Mail variables
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MAILLOG="/var/log/blocklist-update.log"
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MAIL_SENDER=$(whoami) #this defines a system-user without a shell or password. It's used as the e-mail sender name. You can create one like this: useradd -M -N -s /usr/sbin/nologin myuser && passwd -d myuser
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MAIL_SUBJECT="ERROR - IP blocklist script failed to download the IP set"
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read -t 15 -p "Insert a mail to send the log. Separate with space to send to multiple recipients: " MAIL_RECIPIENTS
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if [ $MAIL" == 1 ]; then read -t 15 -p "Insert a mail to send the log. Separate with space to send to multiple recipients: " MAIL_RECIPIENTS; fi;
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if [ ! "$MAIL_RECIPIENTS" ]; then MAIL_RECIPIENTS="$(whoami)@$HOSTNAME"; else echo "Address: " $MAIL_RECIPIENTS; fi;
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BLOCKLIST_FILE="/tmp/ip-blocklist.txt"
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@ -116,4 +117,4 @@ for i in $( cat $BLOCKLIST_FILE ); do $IPSET_PATH add $CHAINNAME $i >>$MAILLOG 2
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echo "" >>$MAILLOG
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echo "Done." >>$MAILLOG
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sudo -u $MAIL_SENDER $MAIL_PATH -s "SUCCESS - IP blocklist script has updated the IP set with the newest IP list" $MAIL_RECIPIENTS < $MAILLOG
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if [ "$MAIL" == 1 ]; then sudo -u $MAIL_SENDER $MAIL_PATH -s "SUCCESS - IP blocklist script has updated the IP set with the newest IP list" $MAIL_RECIPIENTS < $MAILLOG; fi;
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