#!/bin/sh
#
# Copyright (c) 1996, 1997, 1998 S.u.S.E. GmbH
# Copyright (c) 1998, 1999, 2000, 2001 SuSE GmbH
# Copyright (c) 2002, 2003, (2004?) SuSE Linux AG
# Copyright (c) 2004(?), 2005, 2006, 2007, 2008 SUSE Linux Products GmbH
#
# Authors: Rolf Haberrecker <apache@suse.de>, 2001
#          Peter Poeml <apache@suse.de>, 2002, 2003, 2004, 2005, 2006, 2007, 
#                                        2008, 2009, 2010
#
#

. /usr/share/apache2/script-helpers

#
# which instance should we will run, comes from
# apache2@ service file
#
unset instance_suffix
if [ -n "$START_APACHE_INSTANCE" ]; then 
  instance_suffix="@$START_APACHE_INSTANCE"
fi

#
# load sysconfig variables APACHE_* from instance sysconfig
# file; START_APACHE_SYSCONFIG_FILE can be used for change the system
# default (e. g. for testing purposes)
#
export HTTPD_SYSCONFIG_FILE=${START_APACHE_SYSCONFIG_FILE:-/etc/sysconfig/apache2${instance_suffix}}
load_sysconfig

#
# dir to locate pid file into; START_APACHE_RUN_DIR can be used
# to change the system default (e. g. for testing purposes)
#
run_dir="${START_APACHE_RUN_DIR:-/run}"

unset server_flags
#
# server_flags: -DSYSCONFIG
#
if [ -f "$HTTPD_SYSCONFIG_FILE" ]; then
  server_flags="$server_flags -DSYSCONFIG"
fi

#
# figure out correct apache2 binary (/usr/sbin/httpd-prefork,
# /usr/sbin/httpd-worker, etc.) and serverflags
#
find_mpm
if [ -n "$HTTPD_MPM" ]; then
    apache_bin="$HTTPD_SBIN_BASE-$HTTPD_MPM"
    if ! [ -x $apache_bin ]; then
        echo >&2 "$apache_bin-$APACHE_MPM is not a valid httpd binary."
	echo >&2 "Check your APACHE_MPM setting in /etc/sysconfig/apache2."
	exit 1
    fi
else
    # take /usr/sbin/httpd, which will
    # exist thanks to update alternatives
    apache_bin="$HTTPD_SBIN_BASE"
fi

# server flags from APACHE_SERVER_FLAGS
for i in $APACHE_SERVER_FLAGS; do
	case $i in 
	-D)	;;
	-D*)	server_flags="$server_flags $i";;
	*)	server_flags="$server_flags -D$i";;
	esac
done

#
# head configuration file
#
httpd_conf=${APACHE_HTTPD_CONF:-/etc/apache2${instance_suffix}/httpd.conf}

#
# where to write configuration depending on sysconfig variables
#
sysconfd_dir=$(dirname $httpd_conf)/sysconfig${instance_suffix}.d/

#
# set PidFile to this file name; PidFile should not
# be used in the configuration to change this, otherwise
# stopping will not work
#
pid_file=$run_dir/httpd${instance_suffix}.pid

#
# involve the sysconfig variables
#
[ -d ${sysconfd_dir} ] || mkdir -p ${sysconfd_dir} || exit 1
for c in global.conf include.conf loadmodule.conf; do
  echo "# File generated from $HTTPD_SYSCONFIG_FILE, do not edit. Edit the sysconfig file instead." > ${sysconfd_dir}/$c
done
# APACHE_ACCESS_LOG -> global.conf
if [ -n "$APACHE_ACCESS_LOG" ]; then
    echo "CustomLog $APACHE_ACCESS_LOG" | sed 's:,:\nCustomLog :' >> ${sysconfd_dir}/global.conf
fi
# APACHE_CONF_INCLUDE_FILES -> include.conf
for file in $APACHE_CONF_INCLUDE_FILES; do
    test ${file:0:1} = / || file=/etc/apache2/$file
    if [ ! -e $file ]; then
      continue
    fi
    echo "Include $file" >> ${sysconfd_dir}/include.conf
done
# APACHE_CONF_INCLUDE_DIRS -> include.conf
for dir in $APACHE_CONF_INCLUDE_DIRS; do
    test ${dir:0:1} = / || dir=/etc/apache2/$dir
    if  ! ( [ -e $dir ] || [ -e ${dir%/*} ] ); then
      continue
    fi
    echo "Include $dir" >> ${sysconfd_dir}/include.conf
done
# APACHE_SERVERADMIN -> global.conf
if [ -n "$APACHE_SERVERADMIN" ]; then
    echo "ServerAdmin $APACHE_SERVERADMIN" >> ${sysconfd_dir}/global.conf
fi
# APACHE_SERVERNAME -> global.conf
if [ -n "$APACHE_SERVERNAME" ]; then
    echo "ServerName $APACHE_SERVERNAME" >> ${sysconfd_dir}/global.conf
fi
# APACHE_START_TIMEOUT
# not used nowadays
# APACHE_SERVERSIGNATURE -> global.conf
if [ -n "$APACHE_SERVERSIGNATURE" ]; then
    echo "ServerSignature $APACHE_SERVERSIGNATURE" >> ${sysconfd_dir}/global.conf
fi
# APACHE_LOGLEVEL -> global.conf
if [ -n "$APACHE_LOGLEVEL" ]; then
    echo "LogLevel $APACHE_LOGLEVEL" >> ${sysconfd_dir}/global.conf
fi
# APACHE_USE_CANONICAL_NAME -> global.conf
if [ -n "$APACHE_USE_CANONICAL_NAME" ]; then
    echo "UseCanonicalName $APACHE_USE_CANONICAL_NAME" >> ${sysconfd_dir}/global.conf
fi
# APACHE_SERVERTOKENS -> global.conf
if [ -n "$APACHE_SERVERTOKENS" ]; then
    echo "ServerTokens $APACHE_SERVERTOKENS" >> ${sysconfd_dir}/global.conf
fi
# APACHE_TACEENABLE -> global.conf
if [ -n "$APACHE_TRACEENABLE" ]; then
    echo "TraceEnable $APACHE_TRACEENABLE" >> ${sysconfd_dir}/global.conf
fi
# APACHE_EXTENDED_STATUS -> global.conf
if [ -n "$APACHE_EXTENDED_STATUS" ]; then
    if [ "$APACHE_EXTENDED_STATUS" == "lua" ]; then
      server_flags="$server_flags -DLUA_STATUS"
    elif [ "$APACHE_EXTENDED_STATUS" == "on" ]; then
      server_flags="$server_flags -DEXTENDED_STATUS"
    fi
fi
# APACHE_MODULES -> loadmodule.conf
get_module_list
module_ids=($HTTPD_MODULE_IDS)
module_paths=($HTTPD_MODULE_PATHS)
for i in "${!module_ids[@]}"; do
    echo "LoadModule ${module_ids[$i]} ${module_paths[$i]}" >> ${sysconfd_dir}/loadmodule.conf
done

#
# a proper home should be set, otherwise the server might end up 
# with HOME=/root and some script might try to use that
#
HOME=/var/lib/apache2${instance_suffix}

#
# run Apache
#

exec $apache_bin $server_flags \
        -C "PidFile $pid_file" \
        -C "Include $sysconfd_dir/loadmodule.conf" \
        -C "Include $sysconfd_dir/global.conf" \
        -f $httpd_conf \
        -c "Include $sysconfd_dir/include.conf" \
        $@

exit 0