Better highlighting and now host/service selectors work as well as --current

nlog

@@ -20,36 +20,46 @@ num=""
 # These two need to be regexp wildcards to match everything when nothing is specified
 aSource="(HOST|SERVICE)"
 aType="(ALERT|NOTIFICATION|EVENT HANDLER)"
+verbose=""
+
+do_debug() {
+  [ -n "$verbose" ] && echo "$*"
+}
 
 print_help() {
-  echo "Usage:"
+  cat << HELP_EOF
-  echo "	-d (debug mode)"
+Usage:
-  echo "	-h|--host <host>"
+	-d (debug mode)
-  echo "	-s|--service <service>"
+	-h|--host <host>
-  echo "	--state <warning type (OK, WARNING, CRITICAL, UNKNOWN)> no default"
+	-s|--service <service>
-  echo "	--ok|--warn|--warning|--crit|--critical only print things that match"
+	--current show CURRENT HOST|SERVICE STATE information
-  echo "	--hard only print hard stuff"
+	--state <warning type (OK, WARNING, CRITICAL, UNKNOWN)> no default
-  echo "	--soft only print soft stuff"
+	--ok|--warn|--warning|--crit|--critical only print things that match
-  echo "	--sev|--severity <type (HARD, SOFT)>, default=all"
+	--hard|--sort only print things that match
-  echo "	-Q does a quick version of HARD CRITICAL"
+	--soft only print soft stuff
-  echo "	-n <#> selects the alert number, no default"
+	--sev|--severity <type (HARD, SOFT)>, default=all
-  echo "	--type <alert type (ALERT, EVENT, NOTIFICATION)>, default=all"
+	-Q does a quick version of HARD CRITICAL
-  echo "	--event set alert type to EVENT HANDLER"
+	-n <#> selects the alert number (of max_retries), no default
-  echo "	--src|--source <alert source (HOST, SERVICE)>, default=all"
+	--type <alert type (ALERT, EVENT, NOTIFICATION)>, default=all
-  echo "	--from <from time>, default=today at midnight"
+	--event set alert type to EVENT HANDLER
-  echo "	--to <to time>, default=now"
+	--src|--source <alert source (HOST, SERVICE)>, default=all
-  echo "	--notime don't convert timestamp to human time"
+	--from <from time>, default=today at midnight
-  echo "	-c|--constant) the equivalent of a tail -f on the Nagios log file"
+	--to <to time>, default=now
-  echo "	--file <file[s]>) scan <file[s]> instead of $file; use \"...\" if wildcards"
+	--notime don't convert timestamp to human time
-  echo ""
+	-c|--constant) the equivalent of a tail -f on the Nagios log file
-  echo "All input is evaluated as a case-insensitive regexp surrounded by wildcards."
+	--file <file[s]>) scan <file[s]> instead of $files; use "..." if wildcards
-  echo "Time values can be in the following formats:"
+	-v turn on verbose/debug mode
-  echo "	HH:MM[:SS]	YYYY-MM-DD	YYYY-MM-DD HH:MM[:SS]*"
+
-  echo "This program does not directly scan log files other than the current one.  If you want"
+All input is evaluated as a case-insensitive regexp surrounded by wildcards.
-  echo "to scan older files, use the --file option.  Note that this can be combined with the"
+Time values can be in the following formats:
-  echo "--from and --to options, but keep in mind that file names are named based on the date they"
+	HH:MM[:SS]	YYYY-MM-DD	YYYY-MM-DD HH:MM[:SS]*
-  echo "were rotated, not the date of their contents."
+This program does not directly scan log files other than the current one.  If you want
-  echo "*Due to the awk pattern matching, dates before 2020-09-09 will produce empty output."
+to scan older files, use the --file option.  Note that this can be combined with the
+--from and --to options, but keep in mind that file names are named based on the date they
+were rotated, not the date of their contents.
+Some options set others, so options earlier on the command line can be overwritten by later ones
+*Due to the awk pattern matching, dates before 2020-09-09 will produce empty output.
+HELP_EOF
   exit;
 }
 
@@ -61,6 +71,7 @@ while [ -n "$1" ]; do
     -s|--service) service="$2"; shift 2;;
     --state) state="$2"; shift 2;;
     --ok) state="OK"; shift 1;;
+    --current) aSource="(HOST|SERVICE)"; aType="STATE"; shift 1;;
     --warn|--warning) state="WARNING"; shift 1;;
     --crit|--critical) state="CRITICAL"; shift 1;;
     --hard) severity="HARD"; shift 1;;
@@ -74,7 +85,8 @@ while [ -n "$1" ]; do
     --from) fromTime="$2"; shift 2;;
     --to) toTime="$2"; shift 2;;
     --notime) noTime="true"; shift 1;;
-    -c|--constant) tailMode="-f"; shift 1;;
+    -c|--constant) tailMode="--follow=name"; shift 1;;
+    -v) verbose="true"; shift 1;;
     *) shift 1;;
   esac
 done
@@ -85,6 +97,7 @@ done
 # [1690749418] HOST ALERT:    Security Cameras;                        DOWN;     SOFT; 1; CRITICAL - 192.168.1.88: rta nan, lost 100%
 # [1690765779] SERVICE ALERT: DD-WRT;           Port: vlan1 Bandwidth; CRITICAL; SOFT; 4; CRITICAL - Current BW in: 8.22Mbps Out: 1.58Mbps
 #                                                                      (NF-3)    (NF-2)(NF-1)
+# [1723694400] CURRENT HOST STATE: localhost;UP;HARD;1;OK - 127.0.0.1 rta 0.067ms lost 0%
 # (HOST|SERVICE) (DOWNTIME|FLAPPING)? (ALERT|NOTIFICATION)
 
 timeSel=""
@@ -99,13 +112,28 @@ fi
 timeSub=""
 [ -z "$noTime" ] && timeSub="&& sub (/^\[[0-9]{10}]/, strftime (\"%Y-%m-%d %H:%M:%S\", substr (\$1, 2, 10)), \$1)"
 
+do_debug "DEBUG: host=$host"
+do_debug "DEBUG: service=$service"
+do_debug "DEBUG: awk=^\[[0-9]{10}] (GLOBAL |CURRENT )?$aSource (DOWNTIME |FLAPPING )?$aType: .*$host.*$service"
+
 tail -n +1 $tailMode $files | gawk -F\; "\
 	BEGIN {IGNORECASE=1} \
-	/^\[[0-9]{10}] (GLOBAL )?$aSource (DOWNTIME |FLAPPING )?$aType: .*$host.*;$service/ \
+	/^\[[0-9]{10}] (GLOBAL |CURRENT )?$aSource (DOWNTIME |FLAPPING )?$aType: .*$host.*$service/ \
 	&& \$(NF-3)~/$state/ \
 	&& \$(NF-2)~/$severity/ \
 	&& \$(NF-1)~/$num/ \
 	$timeSel \
 	$timeSub \
-	{printf \"%s: %s;%s;%s;%s;%s\n\", \$1, \$2, \$3, \$4, \$5, \$6}" |
+	{
-	sed -e "s/;OK;/;\x1b[32mOK\x1b[0m;/" -e "s/;CRITICAL;/;\x1b[31mCRITICAL\x1b[0m;/" -e "s/;WARNING;/;\x1b[33mWARNING\x1b[0m;/" -e "s/;HARD;/;\x1b[35mHARD\x1b[0m;/" -e "s/;SOFT;/;\x1b[36mSOFT\x1b[0m;/"
+	  sub(/OK/, \"\x1b[32mOK\x1b[0m\", \$3)
+	  sub(/WARNING/, \"\x1b[31mWARNING\x1b[0m\", \$3)
+	  sub(/CRITICAL/, \"\x1b[33mCRITICAL\x1b[0m\", \$3)
+	  sub(/UP/, \"\x1b[32mUP\x1b[0m\", \$2)
+	  sub(/UNREACHABLE/, \"\x1b[31mUNREACHABLE\x1b[0m\", \$2)
+	  sub(/DOWN/, \"\x1b[33mDOWN\x1b[0m\", \$2)
+	  sub(/HARD/, \"\x1b[35mHARD\x1b[0m\", \$3)
+	  sub(/SOFT/, \"\x1b[36mSOFT\x1b[0m\", \$3)
+	  sub(/HARD/, \"\x1b[35mHARD\x1b[0m\", \$4)
+	  sub(/SOFT/, \"\x1b[36mSOFT\x1b[0m\", \$4)
+	  printf \"%s: %s;%s;%s;%s;%s\n\", \$1, \$2, \$3, \$4, \$5, \$6
+}"