MajorSophos update script rev.
Mark Nienberg
mark at TIPPINGMAR.COM
Mon Apr 14 18:41:02 IST 2003
A revised version of the shell script "MajorSophos.sh" is attached. The
script downloads and (optionally) installs the monthly Sophos program updates.
The revision is different from the original posted Feb 27 only in the default
environment variables, which have been updated for the 4.x series of
MailScanner. The following description is from the original post:
It downloads the file from the Sophos website using your sophos
username and password and installs it using the script provided with
MailScanner. It works either interactively or from cron. It has an option to
download the file but not install it. If run from cron, it can report its
results by e-mail and/or write to a log.
Even if you don't set it up to run from cron, it is a timesaver to use it
interactively. It does a fair amount of error checking, so I don't see how it
could ever mess up a working installation. It reports the version of
installed sophos before and after running. It does this by running
sweep (via sophos-wrapper) with the "-v" switch, so you can be pretty
confident that the install was a success.
If you want to give it a try, I advise the following procedure to build up
some confidence in it:
1. Edit the variables at the top of the script to suit your configuration.
2. Run with no arguments to see a usage statement.
3. Run with "-download" argument to see if it can download the file.
4. rm the temp directory created in 3. (/tmp/MajorSophos.sh.xxxxxx)
5. Run with "-install" argument to see if it can download and install.
6. Repeat all of the above from cron, if you like.
I wrote in on a RedHat 7.3 system. It requires "which" and "mktemp", but
if you don't have those it would be simple to modify.
--
Mark W. Nienberg, SE
Tipping Mar + associates
1906 Shattuck Ave, Berkeley, CA 94704
visit our website at http://www.tippingmar.com
-------------- next part --------------
#!/bin/sh
# Shell script to download latest version of Sophos and
# (optionally) install it using the MailScanner installer.
# Developed on Red Hat Linux 7.3. rev 4-14-2003
# Mark Nienberg <imark at tippingmar.com>
# Use as you please at your own risk.
# --------Usage:--------------------------------------------------
# run the program with no options for a Usage printout
# --------Set Environment Variables-------------------------------
# Set SWEEP to the location of the MailScanner wrapper for sweep.
# This is only used to report the Sophos version. If it is wrong,
# it won't prevent the successful download or installation.
SWEEP=/usr/lib/MailScanner/sophos-wrapper
# Program to run to install Sophos after downloading it
INSTALL=/usr/sbin/Sophos.install
# Username provide by Sophos
WEBUSER="myusername"
# Password provided by Sophos
WEBPASS="mypassword"
# Website to download from. It must end with "/"
WEBSITE="http://www.us.sophos.com/sophos/products/full/"
# Name of the file to download
DOWNFILE="linux.intel.libc6.tar.Z"
# The rest of the variables (6 total) are only used if run from cron
APPENDLOG="yes" # Append report to a log? yes or no
LOGFILE="/var/log/MajorSophos.log" # Append report to this log file
EMAIL="yes" # Send report by email? yes or no
MAILPROG="/bin/mail" # Program used to send e-mail
MAILNAMES="someone at some.domain" # Persons to receive e-mail
# The "install.sh" provided by Sophos, which is called by Mailscanner's
# "Sophos.install" script, uses ldconfig on Linux and FreeBSD. But
# ldconfig may not be in cron's path. If you list it here, we can fix
# cron's path so the installation will work. RedHat definitely needs this.
# Alternatively, you could specify it in your crontab file.
# It will be ignored for other platforms, and when not running from cron.
LDCONFIGPATH="/sbin"
# --------End Environment Variables-------------------------------
# --------Function to handle output-------------------------------
printout() {
# we'll write to stdout if interactive, otherwise write to a file
if [ "$LOG" = "no" ] ; then
echo $@
else
echo $@ >>$TMPLOG
fi
}
# --------Subroutine to find the current version of Sophos--------
sweepVer() {
# find version of sweep currently installed by running it with -v
if [ -f $SWEEP ]; then
printout "Current Sophos version information follows:"
printout `$SWEEP -v | egrep 'Product|Released'`
else
printout "Sophos is not currently installed or the SWEEP variable is wrong"
fi
}
# --------Subroutine to download the file-------------------------
download() {
TMPDIR=`mktemp -d -q /tmp/$BASE.XXXXXX`
if [ $? -ne 0 ]; then
printout "$BASE: Can't create temp directory, exiting"
cleanUp
fi
cd $TMPDIR
if [ "$LOG" = "yes" ] ; then
wget -a$TMPLOG -t10 --progress=dot:mega --http-user=$WEBUSER --http-passwd=$WEBPASS $WEBSITE$DOWNFILE
else
wget -t10 --progress=dot:mega --http-user=$WEBUSER --http-passwd=$WEBPASS $WEBSITE$DOWNFILE
fi
if [ $? -eq 0 ]; then
DOWNLOAD="success"
printout "Download of $DOWNFILE succeeded"
else
DOWNLOAD="failure"
printout "Download of $DOWNFILE failed"
fi
}
# --------Subroutine to test for ldconfig-------------------------
ldconfigTest() {
if [ "`uname -s`" = "Linux" ] || [ "`uname -s`" = "FreeBSD" ] ; then
printout "Platform is `uname -s`"
which ldconfig > /dev/null 2>&1
if [ $? -ne 0 ] ; then
printout "Cannot find ldconfig"
printout "Current path is $PATH"
if [ -d $LDCONFIGPATH ] ; then
printout "adding $LDCONFIGPATH to the path"
PATH=$PATH:$LDCONFIGPATH ; export PATH
printout "New path is $PATH"
# try once more
which ldconfig > /dev/null 2>&1
if [ $? -ne 0 ] ; then
printout "Still cannot find ldconfig, exiting."
cleanUp
else
printout "Found ldconfig"
fi
else
printout "LDCONFIGPATH variable is not valid, exiting."
cleanUp
fi
fi
fi
}
# --------Subroutine to end & handle log, if one was made.--------
cleanUp() {
if [ "$LOG" = "yes" ] ; then
if [ "$EMAIL" = "yes" ] ; then
$MAILPROG -s 'MajorSophos Update Log' $MAILNAMES<$TMPLOG
fi
if [ "$APPENDLOG" = "yes" ] ; then
cat $TMPLOG>>$LOGFILE
fi
rm $TMPLOG
fi
exit
}
######### Execution starts here ##################################
BASE=`basename $0`
# --------See if we are running interactively or from cron--------
if tty -s ; then
LOG="no"
else
LOG="yes"
TMPLOG=`mktemp -q /tmp/$BASE.XXXXXX`
if [ $? -ne 0 ]; then
echo "$BASE: Can't create temp log file, exiting"
exit
fi
printout
printout "$BASE $1 started `date`"
fi
# --------See how we were called----------------------------------
case "$1" in
-download) # download only
sweepVer
download
cleanUp
;;
-install) # download and install
sweepVer
if [ "$LOG" = "yes" ] ; then ldconfigTest ; fi ;
download
if [ "$DOWNLOAD" = "success" ] ; then
printout "Starting the MailScanner Sophos installation script"
if [ "$LOG" = "yes" ] ; then
$INSTALL >> $TMPLOG
else
$INSTALL
fi
sweepVer
printout "Cleaning up installation files"
cd /tmp
rm -rf $TMPDIR
printout "Done."
else
printout "Installation was not attempted."
fi
cleanUp
;;
*) #no option or an invalid option
if [ "$LOG" = "yes" ] ; then
printout "$BASE was not started with a valid option"
printout "Run from command line with no options for a Usage Statement"
else
echo
echo "Usage: $BASE [-install | -download]"
echo " -install Download and install the latest Sophos program."
echo " -download Download only, do not install."
fi
cleanUp
;;
esac
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