diff options
Diffstat (limited to 'debian/apache2.init')
| -rwxr-xr-x | debian/apache2.init | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/debian/apache2.init b/debian/apache2.init new file mode 100755 index 0000000..1f51d9e --- /dev/null +++ b/debian/apache2.init @@ -0,0 +1,355 @@ +#!/bin/sh +### BEGIN INIT INFO +# Provides: apache2 +# Required-Start: $local_fs $remote_fs $network $syslog $named +# Required-Stop: $local_fs $remote_fs $network $syslog $named +# Default-Start: 2 3 4 5 +# Default-Stop: 0 1 6 +# X-Interactive: true +# Short-Description: Apache2 web server +# Description: Start the web server +# This script will start the apache2 web server. +### END INIT INFO + +DESC="Apache httpd web server" +NAME=apache2 +DAEMON=/usr/sbin/$NAME + +SCRIPTNAME="${0##*/}" +SCRIPTNAME="${SCRIPTNAME##[KS][0-9][0-9]}" +if [ -n "$APACHE_CONFDIR" ] ; then + if [ "${APACHE_CONFDIR##/etc/apache2-}" != "${APACHE_CONFDIR}" ] ; then + DIR_SUFFIX="${APACHE_CONFDIR##/etc/apache2-}" + else + DIR_SUFFIX= + fi +elif [ "${SCRIPTNAME##apache2-}" != "$SCRIPTNAME" ] ; then + DIR_SUFFIX="-${SCRIPTNAME##apache2-}" + APACHE_CONFDIR=/etc/apache2$DIR_SUFFIX +else + DIR_SUFFIX= + APACHE_CONFDIR=/etc/apache2 +fi +if [ -z "$APACHE_ENVVARS" ] ; then + APACHE_ENVVARS=$APACHE_CONFDIR/envvars +fi +export APACHE_CONFDIR APACHE_ENVVARS + +ENV="env -i LANG=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" +if [ "$APACHE_CONFDIR" != /etc/apache2 ] ; then + ENV="$ENV APACHE_CONFDIR=$APACHE_CONFDIR" +fi +if [ "$APACHE_ENVVARS" != "$APACHE_CONFDIR/envvars" ] ; then + ENV="$ENV APACHE_ENVVARS=$APACHE_ENVVARS" +fi + +PIDFILE=$(. $APACHE_ENVVARS && echo $APACHE_PID_FILE) + +VERBOSE=no +if [ -f /etc/default/rcS ]; then + . /etc/default/rcS +fi +. /lib/lsb/init-functions + + +# Now, set defaults: +APACHE2CTL="$ENV apache2ctl" +PIDFILE=$(. $APACHE_ENVVARS && echo $APACHE_PID_FILE) +APACHE2_INIT_MESSAGE="" + +CONFTEST_OUTFILE= +cleanup() { + if [ -n "$CONFTEST_OUTFILE" ] ; then + rm -f "$CONFTEST_OUTFILE" + fi +} +trap cleanup 0 # "0" means "EXIT", but "EXIT" is not portable + + +apache_conftest() { + [ -z "$CONFTEST_OUTFILE" ] || rm -f "$CONFTEST_OUTFILE" + CONFTEST_OUTFILE=$(mktemp) + if ! $APACHE2CTL configtest > "$CONFTEST_OUTFILE" 2>&1 ; then + return 1 + else + rm -f "$CONFTEST_OUTFILE" + CONFTEST_OUTFILE= + return 0 + fi +} + +clear_error_msg() { + [ -z "$CONFTEST_OUTFILE" ] || rm -f "$CONFTEST_OUTFILE" + CONFTEST_OUTFILE= + APACHE2_INIT_MESSAGE= +} + +print_error_msg() { + [ -z "$APACHE2_INIT_MESSAGE" ] || log_warning_msg "$APACHE2_INIT_MESSAGE" + if [ -n "$CONFTEST_OUTFILE" ] ; then + echo "Output of config test was:" >&2 + cat "$CONFTEST_OUTFILE" >&2 + rm -f "$CONFTEST_OUTFILE" + CONFTEST_OUTFILE= + fi +} + +apache_wait_start() { + local STATUS=$1 + local i=0 + + if [ $STATUS != 0 ] ; then + return $STATUS + fi + while : ; do + PIDTMP=$(pidofproc -p $PIDFILE $DAEMON) + if [ -n "${PIDTMP:-}" ] && kill -0 "${PIDTMP:-}" 2> /dev/null; then + return $STATUS + fi + + if [ $i = "20" ] ; then + APACHE2_INIT_MESSAGE="The apache2$DIR_SUFFIX instance did not start within 20 seconds. Please read the log files to discover problems" + return 2 + fi + + [ "$VERBOSE" != no ] && log_progress_msg "." + sleep 1 + i=$(($i+1)) + done +} + +apache_wait_stop() { + local STATUS=$1 + local METH=$2 + + if [ $STATUS != 0 ] ; then + return $STATUS + fi + + PIDTMP=$(pidofproc -p $PIDFILE $DAEMON) + if [ -n "${PIDTMP:-}" ] && kill -0 "${PIDTMP:-}" 2> /dev/null; then + if [ "$METH" = "kill" ]; then + killproc -p $PIDFILE $DAEMON + else + $APACHE2CTL $METH > /dev/null 2>&1 + fi + + local i=0 + while kill -0 "${PIDTMP:-}" 2> /dev/null; do + if [ $i = '60' ]; then + STATUS=2 + break + fi + [ "$VERBOSE" != no ] && log_progress_msg "." + sleep 1 + i=$(($i+1)) + done + return $STATUS + else + return $STATUS + fi +} + + +# +# Function that starts the daemon/service +# +do_start() +{ + # Return + # 0 if daemon has been started + # 1 if daemon was already running + # 2 if daemon could not be started + + if pidofproc -p $PIDFILE "$DAEMON" > /dev/null 2>&1 ; then + return 1 + fi + + if apache_conftest ; then + $APACHE2CTL start + apache_wait_start $? + return $? + else + APACHE2_INIT_MESSAGE="The apache2$DIR_SUFFIX configtest failed." + return 2 + fi +} + +# +# Function that stops the daemon/service +# +do_stop() +{ + # Return + # 0 if daemon has been stopped + # 1 if daemon was already stopped + # 2 if daemon could not be stopped + # other if a failure occurred + + # either "stop" or "graceful-stop" + local STOP=$1 + # can't use pidofproc from LSB here + local AP_RET=0 + + if pidof $DAEMON > /dev/null 2>&1 ; then + if [ -e $PIDFILE ] && pidof $DAEMON | tr ' ' '\n' | grep -w $(cat $PIDFILE) > /dev/null 2>&1 ; then + AP_RET=2 + else + AP_RET=1 + fi + else + AP_RET=0 + fi + + # AP_RET is: + # 0 if Apache (whichever) is not running + # 1 if Apache (whichever) is running + # 2 if Apache from the PIDFILE is running + + if [ $AP_RET = 0 ] ; then + return 1 + fi + + if [ $AP_RET = 2 ] && apache_conftest ; then + apache_wait_stop $? $STOP + return $? + else + if [ $AP_RET = 2 ]; then + clear_error_msg + APACHE2_INIT_MESSAGE="The apache2$DIR_SUFFIX configtest failed, so we are trying to kill it manually. This is almost certainly suboptimal, so please make sure your system is working as you'd expect now!" + apache_wait_stop $? "kill" + return $? + elif [ $AP_RET = 1 ] ; then + APACHE2_INIT_MESSAGE="There are processes named 'apache2' running which do not match your pid file which are left untouched in the name of safety, Please review the situation by hand". + return 2 + fi + fi + +} + + +# +# Function that sends a SIGHUP to the daemon/service +# +do_reload() { + if apache_conftest; then + if ! pidofproc -p $PIDFILE "$DAEMON" > /dev/null 2>&1 ; then + APACHE2_INIT_MESSAGE="Apache2 is not running" + return 2 + fi + $APACHE2CTL graceful > /dev/null 2>&1 + return $? + else + APACHE2_INIT_MESSAGE="The apache2$DIR_SUFFIX configtest failed. Not doing anything." + return 2 + fi +} + + +# Sanity checks. They need to occur after function declarations +[ -x $DAEMON ] || exit 0 + +if [ ! -x $DAEMON ] ; then + echo "No apache-bin package installed" + exit 0 +fi + +if [ -z "$PIDFILE" ] ; then + echo ERROR: APACHE_PID_FILE needs to be defined in $APACHE_ENVVARS >&2 + exit 2 +fi + + +case "$1" in + start) + log_daemon_msg "Starting $DESC" "$NAME" + do_start + RET_STATUS=$? + case "$RET_STATUS" in + 0|1) + log_success_msg + [ "$VERBOSE" != no ] && [ $RET_STATUS = 1 ] && log_warning_msg "Server was already running" + ;; + 2) + log_failure_msg + print_error_msg + exit 1 + ;; + esac + ;; + stop|graceful-stop) + log_daemon_msg "Stopping $DESC" "$NAME" + do_stop "$1" + RET_STATUS=$? + case "$RET_STATUS" in + 0|1) + log_success_msg + [ "$VERBOSE" != no ] && [ $RET_STATUS = 1 ] && log_warning_msg "Server was not running" + ;; + 2) + log_failure_msg + print_error_msg + exit 1 + ;; + esac + print_error_msg + + ;; + status) + status_of_proc -p $PIDFILE "apache2" "$NAME" + exit $? + ;; + reload|force-reload|graceful) + log_daemon_msg "Reloading $DESC" "$NAME" + do_reload + RET_STATUS=$? + case "$RET_STATUS" in + 0|1) + log_success_msg + [ "$VERBOSE" != no ] && [ $RET_STATUS = 1 ] && log_warning_msg "Server was already running" + ;; + 2) + log_failure_msg + print_error_msg + exit 1 + ;; + esac + print_error_msg + ;; + restart) + log_daemon_msg "Restarting $DESC" "$NAME" + do_stop stop + case "$?" in + 0|1) + do_start + case "$?" in + 0) + log_end_msg 0 + ;; + 1|*) + log_end_msg 1 # Old process is still or failed to running + print_error_msg + exit 1 + ;; + esac + ;; + *) + # Failed to stop + log_end_msg 1 + print_error_msg + exit 1 + ;; + esac + ;; + start-htcacheclean|stop-htcacheclean) + echo "Use 'service apache-htcacheclean' instead" + ;; + *) + echo "Usage: $SCRIPTNAME {start|stop|graceful-stop|restart|reload|force-reload}" >&2 + exit 3 + ;; +esac + +exit 0 + +# vim: syntax=sh ts=4 sw=4 sts=4 sr noet |