new upstream release (3.3.0); modify package compatibility for Stretch

[ossec-hids.git] / active-response / ossec-slack.sh

diff --git a/active-response/ossec-slack.sh b/active-response/ossec-slack.sh
new file mode 100644 (file)
index 0000000..60900bb
--- /dev/null
+++ b/active-response/ossec-slack.sh
@@ -0,0 +1,53 @@
+#!/bin/sh
+
+# Change these values!
+# SLACKUSER user who posts notifications
+# CHANNEL which channel it should be posted
+# SITE is the URL provided by the Slack's WebHook, something like:
+# https://hooks.slack.com/services/TOKEN"
+SLACKUSER=""
+CHANNEL=""
+SITE=""
+SOURCE="ossec2slack"
+
+# Checking user arguments
+if [ "x$1" = "xdelete" ]; then
+    exit 0;
+fi
+ALERTID=$4
+RULEID=$5
+LOCAL=`dirname $0`;
+
+# Logging
+cd $LOCAL
+cd ../
+PWD=`pwd`
+echo "`date` $0 $1 $2 $3 $4 $5 $6 $7 $8" >> ${PWD}/../logs/active-responses.log
+ALERTTITLE=`grep -A 1 "$ALERTID" ${PWD}/../logs/alerts/alerts.log | tail -1`
+ALERTTEXT=`grep -A 10 "$ALERTID" ${PWD}/../logs/alerts/alerts.log | grep -v "Src IP: " | grep -v "User: " | grep "Rule: " -A 4 | sed '/^$/Q' | cut -c -139 | sed 's/\"//g'`
+
+LEVEL=`echo "${ALERTTEXT}" | head -1 | grep "(level [0-9]*)" | sed 's/^.*(level \([0-9]*\)).*$/\1/'`
+COLOR="#D3D3D3"
+if [ "${LEVEL}" ]
+then
+  [ "${LEVEL}" -ge 4 ] && COLOR="#FFCC00"
+  [ "${LEVEL}" -ge 7 ] && COLOR="#FF9966"
+  [ "${LEVEL}" -ge 12 ] && COLOR="#CC3300"
+fi
+
+PAYLOAD='{"channel": "'"$CHANNEL"'", "username": "'"$SLACKUSER"'", "attachments": [ {"fallback": "'"$( printf "${ALERTTITLE}\n${ALERTTEXT}" )"'", "title": "'"${ALERTTITLE}"'", "text": "'"${ALERTTEXT}"'", "color": "'"${COLOR}"'"} ]}'
+
+ls "`which curl`" > /dev/null 2>&1
+if [ ! $? = 0 ]; then
+    ls "`which wget`" > /dev/null 2>&1
+    if [ $? = 0 ]; then
+        wget --keep-session-cookies --post-data="${PAYLOAD}" ${SITE} 2>>${PWD}/../logs/active-responses.log
+        exit 0;
+    fi
+else
+    curl -s -X POST --data-urlencode "payload=${PAYLOAD}" ${SITE} 2>>${PWD}/../logs/active-responses.log
+    exit 0;
+fi
+
+echo "`date` $0: Unable to find curl or wget." >> ${PWD}/../logs/active-responses.log
+exit 1;