Add logout method

.gitignore

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+*.py[co]
+.idea
+*.swp
+*~
+build
+dist
+*.egg-info

README.md

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+python zabbix api - https://github.com/gescheit/scripts/tree/master/zabbix
+

checks/README.md

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+functions.sh - functions for locking and caching  
+disksmart.sh - check SMART of all disks in system
+- Work under FreeBSD and linux
+- Use caching and locking

checks/disksmart.sh

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+#!/bin/sh
+# check SMART of all disks in system
+BASENAME=$(dirname $0)
+. ${BASENAME}/functions.sh
+PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/home/zabbix/bin
+RES=""
+ME="disksmart_check"
+TIMEOUT=600
+ERRLOG_COUNT_THRESHOLD=100
+if [ `which smartctl >/dev/null; echo $?` -ne 0 ]; then
+	echo "no smartctl"
+	exit 1
+fi
+
+checkSmartExitStatus()
+{
+	STATUS=$1
+#if [ $(($STATUS & 1<<0)) -gt 0 ]; then echo "Command line did not parse"; fi
+#	if [ $(($STATUS & 1<<1)) -gt 0 ]; then echo "Device open failed"; fi
+	if [ $(($STATUS & 1<<2)) -gt 0 ]; then echo "Some command to the disk failed, or there was a checksum error in a SMART data structure"; fi
+	if [ $(($STATUS & 1<<3)) -gt 0 ]; then echo "DISK FAILING"; fi
+	if [ $(($STATUS & 1<<4)) -gt 0 ]; then echo "found prefail Attr <= threshold"; fi
+#	if [ $(($STATUS & 1<<5)) -gt 0 ]; then echo "Some attributes have been <= threshold at some time in the past"; fi
+	if [ $(($STATUS & 1<<7)) -gt 0 ]; then echo "self-test log contains records of errors"; fi
+}
+
+
+CACHE=`getFromCache "$ME" $TIMEOUT`
+if [ -z "$CACHE" ]; then
+
+	lockf ${ME} 15
+	[ $? -eq 0 ] || exit  # unable to get lockfile
+	DISKS="`sudo smartctl --scan-open`"
+	if [ $? -ne 0 ]; then  # old smartctl
+		if [ `uname` = "Linux" ]; then
+			DISKS="`ls -1 /dev/ | grep -E '^sd[a-z]$' 2>/dev/null | sed 's|^|/dev/|' | sed 's|$|,|'`"
+		elif [ `uname` = "FreeBSD" ]; then
+			DISKS="`ls -1 /dev/ | grep -E '^(ad[0-9]+|da[0-9]+|ada[0-9]+)$' 2>/dev/null | sed 's|^|/dev/|' | sed 's|$|,|'`"
+		fi
+	else
+		DISKS="`echo \"$DISKS\" | sed 's|\ [\#\[].*|,|'`"
+	fi
+	OIFS="${IFS}"
+	NIFS=$","
+
+	IFS="${NIFS}"
+
+	for DISK in ${DISKS}; do
+		IFS='${OIFS}'
+		if [ -z "$DISK" ]; then 
+			continue
+		fi
+		DISK=${DISK%%\#*}
+		DISK=${DISK%-*}
+		DISK=`echo $DISK| xargs`
+		sudo smartctl -q silent -a $DISK 2>/dev/null
+		SMARTSTATUS=$?
+		ERRLOG_COUNT=0
+		if [ $SMARTSTATUS -ne 0 ]; then
+			SMARTSTR=`checkSmartExitStatus \$SMARTSTATUS`
+			if [ $((${SMARTSTATUS} & 1<<2)) -gt 0 ]; then
+				sudo smartctl -a $DISK 2>/dev/null | grep -qE '(Vendor.*VMware|Vendor.*SUPER|Device.*DELL|device.*CD/DVD|Device.*processor|Device.*enclosure|Product.*Array|Virtual.*disk)'
+				if [ $? -eq 0 ]; then
+					continue
+				fi
+				sudo smartctl -i -A -l error -l selftest $DISK 2>/dev/null 1>/dev/null  # try without health check
+				if [ $? -eq 0 ]; then
+					continue
+				fi
+			fi
+			if [ $((${SMARTSTATUS} & 1<<6)) -gt 0 ]; then
+				ERRLOG_COUNT="`sudo smartctl -l error $DISK 2>/dev/null | grep Error\ Count`"
+				ERRLOG_COUNT=${ERRLOG_COUNT##*: }
+				ERRLOG_COUNT=${ERRLOG_COUNT%% *}
+			fi
+			if [ -n "${SMARTSTR}" -o \( ${ERRLOG_COUNT} -gt ${ERRLOG_COUNT_THRESHOLD} \) ]; then
+				SMARTSTR="ton of errors in log"
+				RES="${RES}${DISK} ${SMARTSTR}
+"
+			fi
+		fi
+		IFS="${NIFS}"
+	done
+	IFS="${OIFS}"
+	if [ -z "$RES" ]; then
+		RES="OK"
+	fi
+
+	writeToCache "$ME" "$RES" 
+	unlockf $ME
+else
+	RES=${CACHE}
+fi
+
+echo "$RES" | tr -s "\n\n" "\n"

checks/functions.sh

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+#!/bin/sh
+
+LOCKDIR="/tmp"
+CACHEDIR=$LOCKDIR
+
+getFromCache()
+{
+	CACHEFILE="$CACHEDIR/$1.cache"
+	TIMEOUT="$2"
+	CURRENTTIME="`date +%s`"
+	if [ -s ${CACHEFILE} ]; then
+		CACHEDATA=`cat ${CACHEFILE}`
+		OLDDATATIME=${CACHEDATA%%,*}
+		OLDDATA=${CACHEDATA#*,}
+
+		if [ $OLDDATATIME -gt $((CURRENTTIME-TIMEOUT)) ]; then
+			echo "$OLDDATA"
+			return 0
+		else
+			return 1
+		fi
+	fi	
+}
+
+writeToCache()
+{
+	CACHEFILE="$CACHEDIR/$1.cache"
+	DATA="$2"
+	CURRENTTIME="`date +%s`"
+	echo "$CURRENTTIME,$DATA" > "$CACHEFILE"
+	[ "`id -u -n`" = "zabbix" ] || chown zabbix "$CACHEFILE"
+	return 0
+}
+
+lockf()
+{
+	LOCKFILE="$LOCKDIR/$1.lock"
+	if [ -n "$2" ]; then
+		RETRY=$2
+	else
+		RETRY=1
+	fi
+	while [ $RETRY -gt 0 ]; do
+		RETRY=`expr $RETRY - 1`
+		if (set -o noclobber; echo "$$" > "$LOCKFILE") 2> /dev/null; then
+			trap 'rm -f "$LOCKFILE"; exit $?' INT TERM EXIT
+			return 0
+		fi
+		if [ -f "$LOCKFILE" ]; then
+			kill -0 `cat "$LOCKFILE"` 1>/dev/null 2>&1
+			if [ $? -ne 0 ]; then
+				rm -f "$LOCKFILE" 
+				if [ $? -ne 0 ]; then 
+					echo "unable to remove lock"
+					return 1
+				fi
+			fi
+		fi
+		sleep 1
+	done
+	echo "Locking failed. Held by $(cat $LOCKFILE)"
+	return 1
+}
+
+unlockf()
+{
+	LOCKFILE="$LOCKDIR/$1.lock"
+	rm -f "$LOCKFILE"
+	trap - INT TERM EXIT
+	return 0
+}