The past week I've been trying to share any of the hobbit ext scripts that I wrote. Here's another, contchk.sh. I initially created it because Hobbits content check does not follow "302 Redirect" response codes, and I also had a need to check a URL which was expecting a certain referrer. I remembered I was using this script when I saw Gary Baluha's urlplus.pl.

Incidentally, I cannot use urlplus, as it makes use of bbhostgrep, which I discovered fails if your bb-host entries are too long.

contchk.sh is a fairly short bash script which makes use of curl. You can optionally specify a referrer to spoof. For most folks, Garys script is probably best to use, as it has more enhanced error messages and such. If anything, it's interesting to see different ways multiple people tackle a problem :)

Note: besides the script itself (which should reside in $BBHOME/ext), you will need to add this to your $BBHOME/etc/hobbitlaunch.cfg: [contchk] ENVFILE /home/monitor/server/etc/hobbitserver.cfg NEEDS hobbitd CMD $BBHOME/ext/contchk.sh LOGFILE $BBSERVERLOGS/contchk.log INTERVAL 5m

-Charles

#!/bin/bash

contchk.sh written by Charles Jones (blazer0x at gmail.com) 6/6/2007

This script is designed to perform a content check on a URL and report the

status to a Hobbit server.

This script was created because Hobbits built-in content check

functionality

does not follow 302 redirects.

The script parses out a "contchk" tag in the bb-hosts file. The proper

syntax is: contchk;URL;REFERRER;CHECKSTRING

Note that CHECKSTRING cannot contain spaces so you must use regular

expression metacharacters, so use something like string.with.spaces

BBHTAG=contchk # Name of the tag in bb-hosts COLUMN=cont # Column display name in Hobbit CURL=/usr/bin/curl # Location of curl binary CURLOPTS="--connect-timeout 30 -m 30 -s -L -b cookiejar" # Curl options

Note: using grep because bbhostgrep fails on long lines

grep $BBHTAG $BBHOME/etc/bb-hosts | while read L do set $L # To get one line of output from bbhostgrep HOSTIP="$1" MACHINEDOTS="$2" MACHINE=echo $2 | $SED -e's/\./,/g' CHECKURL=echo $4 | awk -F";" '{print $2}' # Parse out the check URL REFERRER=echo $4 | awk -F";" '{print $3}' # Parse out the referrer string if [ "" != "$REFERRER" ]; then REFERRER="-e $REFERRER" fi CHECKSTRING=echo $4 | awk -F";" '{print $4}' # Parse out the check string $CURL $CURLOPTS $REFERRER $CHECKURL |grep -q "$CHECKSTRING" status=$? # Save greps return status if [ 0 -eq $status ]; then # grep returns 0 if it found something COLOR=green MSG="String <b>\"$CHECKSTRING\"</b> was found in <a href=$CHECKURL>$CHECKURL</a>" $BB $BBDISP "status $MACHINE.$COLUMN $COLOR date Content Check OK ${MSG} " else # grep didn't find anything COLOR=red MSG="String <b>\"$CHECKSTRING\"</b> was NOT FOUND in <a href=$CHECKURL>$CHECKURL</a>" $BB $BBDISP "status $MACHINE.$COLUMN $COLOR date Content Check FAILED ${MSG} " fi done exit 0