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Don't exit if mail command not found

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Sending mail is not mandatory, so removed the exit when mail command is not found
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Alfonso 2021-04-23 12:14:32 +02:00 committed by GitHub
parent 04ccadaa59
commit bb2682ef6b
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1 changed files with 4 additions and 3 deletions
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blocklist-update.sh
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@ -11,20 +11,21 @@ IPSET_PATH="/sbin/ipset"
SORT_PATH="/usr/bin/sort"
MAIL_PATH="/usr/bin/mail"
GREP_PATH="/bin/grep"
MAIL=1
if [ -f $IPTABLES_PATH ]; then echo "iptables OK"; else echo "Cannot find [ iptables ]. Is it installed? Exiting"; exit 1; fi;
#hash iptables 2>/dev/null || { echo >&2 "I require iptables but it's not installed. Aborting."; exit 1; }
#more in https://stackoverflow.com/questions/592620/how-can-i-check-if-a-program-exists-from-a-bash-script
if [ -f $IPSET_PATH ]; then echo "ipset OK"; else echo "Cannot find [ ipset ]. Is it installed? Exiting"; exit 1; fi;
if [ -f $SORT_PATH ]; then echo "sort OK"; else echo "Cannot find [ sort ]. Is it installed? Exiting"; exit 1; fi;
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;
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;
if [ ! -f $GREP_PATH ]; then echo "Cannot find [ grep ]. Is it installed? Exiting"; exit 1; fi;
# E-Mail variables
MAILLOG="/var/log/blocklist-update.log"
MAIL_SENDER=$(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
MAIL_SUBJECT="ERROR - IP blocklist script failed to download the IP set"
read -t 15 -p "Insert a mail to send the log. Separate with space to send to multiple recipients: " MAIL_RECIPIENTS
if [ $MAIL" == 1 ]; then read -t 15 -p "Insert a mail to send the log. Separate with space to send to multiple recipients: " MAIL_RECIPIENTS; fi;
if [ ! "$MAIL_RECIPIENTS" ]; then MAIL_RECIPIENTS="$(whoami)@$HOSTNAME"; else echo "Address: " $MAIL_RECIPIENTS; fi;
BLOCKLIST_FILE="/tmp/ip-blocklist.txt"
@ -116,4 +117,4 @@ for i in $( cat $BLOCKLIST_FILE ); do $IPSET_PATH add $CHAINNAME $i >>$MAILLOG 2
echo "" >>$MAILLOG
echo "Done." >>$MAILLOG
sudo -u $MAIL_SENDER $MAIL_PATH -s "SUCCESS - IP blocklist script has updated the IP set with the newest IP list" $MAIL_RECIPIENTS < $MAILLOG
if [ "$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;