update

defaults.inc

@@ -58,3 +58,21 @@ DIVIDER(){
 	fi
 }
 
+CERT-CHECK(){
+	TARGET="mysite.example.net"; 
+	RECIPIENT="hostmaster@mysite.example.net";
+	DAYS=7;
+	echo "checking if $TARGET expires in less than $DAYS days";
+	expirationdate=$(date -d "$(: | openssl s_client -connect $TARGET:443 -servername $TARGET 2>/dev/null \
+	                              | openssl x509 -text \
+	                              | grep 'Not After' \
+	                              |awk '{print $4,$5,$7}')" '+%s'); 
+	in7days=$(($(date +%s) + (86400*$DAYS)));
+	if [ $in7days -gt $expirationdate ]; then
+	    echo "KO - Certificate for $TARGET expires in less than $DAYS days, on $(date -d @$expirationdate '+%Y-%m-%d')" \
+	    | mail -s "Certificate expiration warning for $TARGET" $RECIPIENT ;
+	else
+	    echo "OK - Certificate expires on $expirationdate";
+	fi
+}
+