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#!/bin/sh -e
# This is a script for modifying JServ's configuration files - it can be
# used by the local sysadmin or by other packages to automatically set them
# up. It can perform 3 basic tasks:
#
# 1. Add/remove a JAR file (or a directory) from the JVM's classpath
# 2. Add/remove a file ending mapping to a servlet
# 3. Add/remove servlet parameters in the root servlet zones
#
# Note: This script does not activate the changes made to Apache.
# JServ's main configuration file
jservconf="/etc/jserv/jserv.conf"
# The servlet zone to which file endings are mapped and where servlet
# parameters are added
jservzone="root"
echo_debug() {
if [ "$debug" = "true" ]; then
echo "DEBUG: " $*
fi
}
checkConfigfile() {
# This function tests/sets the following variables:
# $jservconf JServ's configuation file (usually /etc/jserv/jserv.conf)
# $jservprop JServ's properties file (usually /etc/jserv/jserv.properties)
# $jervzone The name of the servlet zone to modify (usually root)
# $zonemnt The mount point (part of the URL) of this servlet zone
# (usually /servlets)
# $zoneprop The zone's properties file (usually
# /etc/jserv/zones/root.properties)
if ! grep -q "^ApJServProperties" $jservconf; then
echo >&2 "Invalid JServ configuration file $jervconf!"
exit 1
fi
# Look for the properties file (parameter ApJServProperties inside the
# configuration file)
jservprop=`grep "^ApJServProperties" $jservconf | cut -d\ -f2`
if [ ! -e $jsersvprop ]; then
echo >&2 "Invalid JServ properties file $jservprop!"
exit 1
fi
# Get the first mount point and properties file of our servlet zone
zonemnt=`grep "^ApJServMount[[:space:]]\+/.*[[:space:]]\+/$jservzone$" $jservconf | head -1 | cut -d\ -f2`
if [ "x$zonemnt" = "x" ]; then
echo >&2 "Could not find a mount point for the $jservzone zone in $jservconf!"
exit 1
else
zoneprop=`grep "^$jservzone.properties=" $jservprop | cut -d= -f2`
if [ "x$zoneprop" = "x" ]; then
echo >&2 "Could not find the properties file for the $jservzone zone in $jservprop!"
exit 1
fi
echo_debug "$jservzone's mount point is $zonemnt ..."
echo_debug "... and its properties file is $zoneprop"
fi
}
# Beginning of main program: Parse options first
if [ "$1" = "-d" -o "$1" = "--debug" ]; then
debug="true"
shift
else
debug="false"
fi
case "$1" in
add-apache)
if [ "x$2" == "x" ]; then
apacheconf="/etc/apache/httpd.conf"
else
apacheconf=$2
fi
if [ -f $apacheconf ]; then
# First activate or add the JServ LoadModule line
echo_debug "Activating JServ module in $apacheconf"
perl -p -i -e 's:^#[#\s]*(LoadModule.*jserv):$1:' $apacheconf
if ! grep -q "^LoadModule.*jserv" $apacheconf; then
# Add the LoadModule line after all other LoadModule
# statements (possibly commented)
perl -00 -p -i -e "s:(\n([#\s]*LoadModule\s*.*\n)+):\1LoadModule jserv_module /usr/lib/apache/1.3/mod_jserv.so\n:" $apacheconf
fi
if ! grep -q "^Include[[:space:]]\+$jservconf" $apacheconf; then
echo_debug "Adding JServ configuration section to $apacheconf"
savelog -c 100 $apacheconf >/dev/null
cp -p $apacheconf.0 $apacheconf
echo >> $apacheconf "<IfModule mod_jserv.c>"
echo >> $apacheconf "# The following line is for apacheconfig - DO NOT REMOVE!"
echo >> $apacheconf "ApJServLogFile DISABLED"
echo >> $apacheconf "Include /etc/jserv/jserv.conf"
echo >> $apacheconf "</IfModule>"
echo "done."
else
echo_debug "JServ configuration section already present in $apacheconf"
fi
else
echo >&2 "Apache configuration file $apacheconf not found!"
exit 1
fi
;;
remove-apache)
if [ "x$2" == "x" ]; then
apacheconf="/etc/apache/httpd.conf"
else
apacheconf=$2
fi
# Remove all lines from <IfModule mod_jserv.c> to </IfModule> and
# uncomment the Loadnodule line
if [ -f $apacheconf ]; then
# Comment JServ LoadModule line
echo_debug "Deactivating JServ module in $apacheconf"
perl -p -i -e 's:^(LoadModule.*jserv):# $1:' $apacheconf
if grep -q "^Include[[:space:]]\+$jservconf" $apacheconf; then
echo_debug "Removing JServ configuration section from $apacheconf"
savelog -c 100 $apacheconf >/dev/null
perl >$apacheconf -p -e 'if (/^<IfModule mod_jserv.c>/) { while(!/^<\/IfModule>/) { $_=<>; } $_=""; }' $apacheconf.0
else
echo_debug "No JServ configuration section found in $apacheconf"
fi
else
echo >&2 "Apache configuration file $apacheconf not found!"
exit 1
fi
;;
add-classpath)
checkConfigfile
shift
for path in $*; do
if grep -q "^wrapper.classpath=$path" $jservprop; then
echo_debug "$path is already in $jservprop's classpath!"
else
echo_debug "Adding $path to $jservprop's classpath"
# Replace the largest block of (commented) lines
# "wrapper.classpath=...\n" with this block and an additional
# line, i.e. add our line to the end of this block. I have to
# use \1 instead of $1 in the replacing expression because
# otherwise $1 would be relaced by the shell and I can't use
# single quoted either because some variables have to be
# replaced
perl -00 -p -i -e "s:(\n([#\s]*wrapper.classpath\s*=\s*.*\n)+):\1wrapper.classpath=$path\n:" $jservprop
fi
done
;;
remove-classpath)
checkConfigfile
shift
for path in $*; do
if grep -q "^wrapper.classpath=$path" $jservprop; then
echo_debug "Removing $path from $1's classpath"
perl -p -i -e "s:^wrapper.classpath=$path.*\n::" $jservprop
else
echo_debug "$path is not in $jservprop's classpath!"
fi
done
;;
add-mapping)
checkConfigfile
if [ "x$2" == "x" -o "x$3" == "x" ]; then
echo >&2 "Required argument for add-mapping command missing!"
exit 1
fi
fileext=$2; urlpath="$zonemnt/$3"
# First check if there is already a commented entry with this mapping:
# yes: Remove comment from this entry (possibly overwriting the old
# urlpath)
# no: create a new entry after all other ApJServAction statements
if ! grep -q "^ApJServAction[[:space:]]\+\.$fileext" $jservconf; then
if grep -q "^#[#[:space:]]*ApJServAction[[:space:]]\+\.$fileext" $jservconf; then
echo_debug "Activating *.$fileext mapping to $urlpath"
perl -p -i -e "s:#[#\s]*(ApJServAction\s+\.$fileext\s+).*:\1$urlpath:" $jservconf
else
echo_debug "Adding *.$fileext mapping to $urlpath"
perl -00 -p -i -e "s:(\n([#\s]*ApJServAction.*\n)+):\1ApJServAction .$fileext $urlpath\n:" $jservconf
fi
else
echo_debug "$fileext mapping already present in $jservconf"
fi
;;
remove-mapping)
checkConfigfile
if [ "x$2" == "x" ]; then
echo >&2 "Required argument for remove-mapping command missing!"
exit 1
fi
fileext=$2
if grep -q "^ApJServAction[[:space:]]\+\.$fileext" $jservconf; then
echo_debug "Removing $fileext mapping from $jservconf"
perl -p -i -e "s:^(ApJServAction\s+\.$fileext.*\n):#\1:" $jservconf
else
echo_debug "$fileext mapping not present in $jservconf"
fi
;;
add-option)
checkConfigfile
if [ "x$2" == "x" -o "x$3" == "x" -o "x$4" == "x" ]; then
echo >&2 "Required argument for add-option command missing!"
exit 1
fi
option=$2; parameter=$3; value=$4
# Check if there is already a line with this option present, if so
# add $parameter=$value to this option (or substitue the old value)
if grep -q "^$option=" $zoneprop; then
if grep -q "^$option=.*$parameter=" $zoneprop; then
perl -p -i -e "s:^($option=.*)$parameter=.*?([,\n]):\1$parameter=$value\2:" $zoneprop
else
perl -p -i -e "s:^($option=.*)\n:\1,$parameter=$value\n:" $zoneprop
fi
else
echo >> $zoneprop "$option=$parameter=$value"
fi
;;
remove-option)
checkConfigfile
if [ "x$2" == "x" ]; then
echo >&2 "Required argument for remove-option command missing!"
exit 1
fi
option=$2; parameter=$3
if [ "x$parameter" == "x" ]; then
# Remove the whole line
perl -p -i -e "s:^$option=.*\n::" $zoneprop
else
# The 2nd substitution is in case this paramter is the last one,
# the 3rd one in case his parameter is the onle one
perl -p -i -e "s:^($option=.*)$parameter=.+?,:\1:; s:^($option=.*),$parameter=.+:\1:; s:^$option=$parameter=.+\n::" $zoneprop
fi
;;
*)
echo >&2 "Usage: `basename $0` [options] command [arguments]"
echo >&2 ""
echo >&2 "Possible options are:"
echo >&2 "-d/--debug Print debug messages"
echo >&2 ""
echo >&2 "Possible commands are:"
echo >&2 "add-apache [<configfile>] Include JServ into Apache's configuration"
echo >&2 "remove-apache [<configfile>] Remove JServ from Apache's configuration"
echo >&2 "add-classpath <path> ... Add <path> to JServ's JVM classpath"
echo >&2 "remove-classpath <path> ... Remove <path> from JServ's JVM classpath"
echo >&2 "add-mapping <fileext> <urlpath> Add a mapping for *.fileext to urlpath"
echo >&2 "remove-mapping <fileext> Remove the mapping for *.fileext"
echo >&2 "add-option <option> <param> <value> Add <option> to the root servlet zone"
echo >&2 "remove-option <option> [<parameter>} Remove <option> from the root servlet zone"
exit 1
;;
esac
exit 0
|
