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#
# /usr/share/php-select/libapache.sh
# Tool for managing Apache options on Gentoo Linux
#
# Author Stuart Herbert
# (stuart@gentoo.org)
#
# Copyright (c) 2005 Gentoo Foundation, Inc.
# Released under v2 of the GNU General Public License
#
# ========================================================================
actionSet ()
{
setApacheConf
}
actionShow ()
{
showApacheConf
}
actionTest ()
{
testApacheConf
}
# ------------------------------------------------------------------------
# chooseApacheVersion () - select which version of Apache[2] will use
#
# $1 - PHP version to set
# $G_APACHE_CONF - apache config file to edit
# $G_OPTS_VAR - config variable to edit
# $G_APACHE_MOD_DIR - directory to look in for mod_php
chooseApacheVersion ()
{
# convert the PHP version to upper-case
chosen=$( echo $1 | tr [a-z] [A-Z] )
# make a list of the mod_php versions available
choices=( $(learnApacheMods $G_APACHE_MOD_DIR) )
for (( i = 0 ; i < ${#choices[@]} ; i = i + 1 )) ; do
if [[ ${choices[$i]} == $1 ]] ; then
echo $chosen
fi
done
}
# ------------------------------------------------------------------------
# isInstalledForApache() - do we have any mod_php's installed for this
# version of Apache or not?
isInstalledForApache ()
{
# find out which mod_php's are installed (if any!)
choices=( $(learnApacheMods ${G_APACHE_MOD_DIR}) )
# if there are no installed mod_php's, we tell the user
if [[ -z $choices ]] ; then
echo "*** error: mod_php is not installed for this version of Apache"
G_EXITSTATUS=$G_STATUS_NOTINSTALLED
return 1
fi
return 0
}
# ------------------------------------------------------------------------
# isUsingModPhp() - determine if Apache is configured to use mod_php or not
isUsingModPhp ()
{
chosen=$(learnApacheConf ${G_APACHE_CONF})
if [[ -z $chosen ]] ; then
echo "No mod_php configured in $G_APACHE_CONF"
G_EXITSTATUS=$G_STATUS_USINGNONE
return 1
fi
return 0
}
# ------------------------------------------------------------------------
# learnApacheConf() - determine which PHP mod is set
#
# $1 - apache config file to examine
learnApacheConf ()
{
. $1
echo "${!G_OPTS_VAR}" | sed -e 's|^.*\(PHP[0-9]\).*|\1|;'
}
# ------------------------------------------------------------------------
# learnApacheMods() - learn which versions of mod_php are available for
# a chosen Apache version
#
# $1 - directory to search
learnApacheMods ()
{
ls -1 $1/libphp*.so 2>/dev/null | sed -e 's|^.*lib\(php[0-9]\).*|\1|;'
}
# ------------------------------------------------------------------------
# setApacheConf () - set which version of Apache[2] will use
#
# $1 - PHP version to set
# $G_APACHE_CONF - apache config file to edit
# $G_OPTS_VAR - config variable to edit
# $G_APACHE_MOD_DIR - directory to look in for mod_php
setApacheConf ()
{
isInstalledForApache || return 1
# find out which option to set for Apache[2]
#
# if we can't find a matching mod_php to use, tell the user what
# versions are available
apacheChoice=$(chooseApacheVersion $1)
if [[ -z $apacheChoice ]] ; then
echo "*** error: compatible PHP version not found"
echo "Compatible versions are:"
echo
for (( i = 0 ; i < ${#choices[@]} ; i = i + 1 )) ; do
echo "* ${choices[$i]}"
done
G_EXITSTATUS=$G_STATUS_NOTCOMPATIBLE
return
fi
# we know which version of mod_php we want to use
#
# create a new APACHE_OPTS variable
. $G_APACHE_CONF
newVar="$( echo ${!G_OPTS_VAR} | sed -e 's|-D PHP[0-9]||;' )"
newVar="$( echo $newVar -D $apacheChoice | sed -e 's| | |g;' )"
# replace the old variable in the config file with the new one
sed -e "s|$G_OPTS_VAR=.*|$G_OPTS_VAR=\"$newVar\"|;" -i $G_APACHE_CONF
# remember to tell the user to restart apache!
echo "Apache conf.d file updated. For this change to take effect, you"
echo "must restart the Apache webserver using this command:"
echo
echo "$G_APACHE_INIT restart"
}
# ------------------------------------------------------------------------
# showApacheConf() - show which version of PHP that Apache[2] is configured
# to use
#
# $G_APACHE_CONF - the Gentoo config file for Apache
# $G_OPTS_VAR - the variable in the config file to check
showApacheConf ()
{
isInstalledForApache || return 1
# if we get here, then we have 1 or more mod_php's installed
#
# find out which mod_php Apache is configured for (if any)
isUsingModPhp || return 1
# if we get here, then apache is configured for a mod_php ...
# is it one that is installed?
chosen="$( echo $chosen | tr [A-Z] [a-z] )"
for (( i = 0 ; i < ${#choices[@]} ; i = i + 1 )) ; do
if [[ ${choices[$i]} == $chosen ]] ; then
echo $chosen
return
fi
done
# no, it is not installed
# tell the user that they have a problem
echo "*** warning: Apache is configured to use $chosen, but there is no"
echo " matching mod_php installed on this machine"
}
# ------------------------------------------------------------------------
# testApacheConf() - test which version of PHP that Apache[2] is configured
# to use
#
# $G_APACHE_CONF - the Gentoo config file for Apache
# $G_OPTS_VAR - the variable in the config file to check
testApacheConf ()
{
isInstalledForApache || return 1
# if we get here, then we have 1 or more mod_php's installed
#
# find out which mod_php Apache is configured for (if any)
isUsingModPhp || return 1
# if we get here, then apache is configured for a mod_php ...
# is it one that is installed?
chosen="$( echo $chosen | tr [A-Z] [a-z] )"
for (( i = 0 ; i < ${#choices[@]} ; i = i + 1 )) ; do
if [[ ${choices[$i]} == $chosen ]] ; then
# we have one installed; but is it what we want?
if [[ $chosen == $G_PHPVERSION ]]; then
echo "Okay"
return
fi
echo "*** warning: Apache is configured to use a different version of PHP"
G_EXITSTATUS=$G_STATUS_USINGOTHER
return 1
fi
done
# no, it is not installed
# tell the user that they have a problem
echo "*** warning: Apache is configured to use $chosen, but there is no"
echo " matching mod_php installed on this machine"
G_EXITSTATUS=$G_STATUS_NOTINSTALLED
}
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