From 2a0ea3433718141ea5fed9654a10cbb7e7704847 Mon Sep 17 00:00:00 2001
From: Adam Kingsley <kingsleyadam@msn.com>
Date: Sat, 17 Mar 2018 22:05:35 +0100
Subject: [PATCH] Add a method to send a slack message and call it if a webhook
 url is specified in the /etc/plexupdate.cron.conf file.

---
 extras/cronwrapper | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/extras/cronwrapper b/extras/cronwrapper
index b6b10fa..b976872 100755
--- a/extras/cronwrapper
+++ b/extras/cronwrapper
@@ -15,6 +15,27 @@
 #         (typically /var/log/daemon.log or /var/log/syslog)
 #
 
+sendSlackMessage() {
+    escapedText=$(cat ${1} | sed 's/"/\"/g' | sed "s/'/\'/g" )
+    slackUsername=${SLACK_USERNAME:-plexupdate}
+
+    if [ $RET -eq 10 ] || [ $RET -eq 0 ]; then
+        color="#36a64f"
+    else
+        color="#ad2d2d"
+    fi
+    ts=`date +%s`
+    attachment="{\"color\": \"$color\",\"footer\": \"Plex Update\",\"title\": \"Log File\", \"text\": \"$escapedText\", \"ts\": $ts}"
+
+    if [ ! -z "$SLACK_CHANNEL" ]; then
+        json="{\"channel\": \"$SLACK_CHANNEL\", \"username\": \"$slackUsername\", \"attachments\": [$attachment]}"
+    else
+        json="{\"username\": \"$slackUsername\", \"attachments\": [$attachment]}"
+    fi
+
+    curl -s -X POST -H 'Content-type: application/json' -d "$json" "$SLACK_WEBHOOK_URL"
+}
+
 if [ ! -f /etc/plexupdate.cron.conf ]; then
 	echo "ERROR: You have not configured /etc/plexupdate.cron.conf" >&2
 	exit 255
@@ -59,6 +80,11 @@ if [ $RET -ne 0 ] ; then
 	# Make sure user gets an email about this (when not success or if user has specified when)
 	cat ${LOGFILE} >&2
 
+    # If there's a slack webhook specified then send a slack message with the log output
+    if [ ! -z "$SLACK_WEBHOOK_URL" ]; then
+        sendSlackMessage ${LOGFILE}
+    fi
+
 	# Output will produce a cron email, so we can reset the exit status
 	if [ $RET -eq 10 ]; then
 		RET=0