Pejman Moghadam / Fedora

Fedora Core 4 - Startup script for Squid

Public domain


#!/bin/bash
# squid         This shell script takes care of starting and stopping
#               Squid Internet Object Cache
#
# chkconfig: - 90 25
# description: Squid - Internet Object Cache. Internet object caching is \
#       a way to store requested Internet objects (i.e., data available \
#       via the HTTP, FTP, and gopher protocols) on a system closer to the \
#       requesting site than to the source. Web browsers can then use the \
#       local Squid cache as a proxy HTTP server, reducing access time as \
#       well as bandwidth consumption.
# pidfile: /usr/local/squid/var/logs/squid.pid
# config: /usr/local/squid/etc/squid.conf

PATH=/usr/bin:/sbin:/bin:/usr/sbin
export PATH

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

# check if the squid conf file is present
[ -f /usr/local/squid/etc/squid.conf ] || exit 0

if [ -f /etc/sysconfig/squid ]; then
  . /etc/sysconfig/squid
fi

# don't raise an error if the config file is incomplete
# set defaults instead:
SQUID_OPTS=${SQUID_OPTS:-"-D"}
SQUID_PIDFILE_TIMEOUT=${SQUID_PIDFILE_TIMEOUT:-20}
SQUID_SHUTDOWN_TIMEOUT=${SQUID_SHUTDOWN_TIMEOUT:-100}

# determine the name of the squid binary
[ -f /usr/local/squid/sbin/squid ] && SQUID=/usr/local/squid/sbin/squid
[ -z "$SQUID" ] && exit 0

prog="$SQUID"

# determine which one is the cache_swap directory
CACHE_SWAP=`sed -e 's/#.*//g' /usr/local/squid/etc/squid.conf | \
        grep cache_dir |  awk '{ print $3 }'`
[ -z "$CACHE_SWAP" ] && CACHE_SWAP=/var/spool/squid

RETVAL=0

start() {
    for adir in $CACHE_SWAP; do
        if [ ! -d $adir/00 ]; then
             echo -n "init_cache_dir $adir... "
             $SQUID -z -F -D >> /usr/local/squid/var/logs/squid.out 2>&1
        fi
    done
    echo -n $"Starting $prog: "
    $SQUID $SQUID_OPTS >> /usr/local/squid/var/logs/squid.out 2>&1
    RETVAL=$?
    if [ $RETVAL -eq 0 ]; then
       timeout=0;
       while : ; do
          [ ! -f /usr/local/squid/var/logs/squid.pid ] || break
          if [ $timeout -ge $SQUID_PIDFILE_TIMEOUT ]; then
             RETVAL=1
             break
          fi
          sleep 1 && echo -n "."
          timeout=$((timeout+1))
       done
    fi
    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/squid
    [ $RETVAL -eq 0 ] && echo_success
    [ $RETVAL -ne 0 ] && echo_failure
    echo
    return $RETVAL
}

stop() {
    echo -n  $"Stopping $prog: "
    $SQUID -k check >> /usr/local/squid/var/logs/squid.out 2>&1
    RETVAL=$?
    if [ $RETVAL -eq 0 ] ; then
        $SQUID -k shutdown &
        rm -f /var/lock/subsys/squid
        timeout=0
        while : ; do
                [ -f /usr/local/squid/var/logs/squid.pid ] || break
                if [ $timeout -ge $SQUID_SHUTDOWN_TIMEOUT ]; then
                    echo
                    return 1
                fi
                sleep 2 && echo -n "."
                timeout=$((timeout+2))
        done
        echo_success
        echo
    else
        echo_failure
        echo
    fi
    return $RETVAL
}

reload() {
    $SQUID $SQUID_OPTS -k reconfigure
}

restart() {
    stop
    start
}

condrestart() {
    [ -e /var/lock/subsys/squid ] && restart || :
}

rhstatus() {
    status $SQUID && $SQUID -k check
}

probe() {
    return 0
}

case "$1" in
start)
    start
    ;;

stop)
    stop
    ;;

reload)
    reload
    ;;

restart)
    restart
    ;;

condrestart)
    condrestart
    ;;

status)
    rhstatus
    ;;

probe)
    exit 0
    ;;

*)
    echo $"Usage: $0 {start|stop|status|reload|restart|condrestart}"
    exit 1
esac

exit $?

BY: Pejman Moghadam
TAG: squid
DATE: 2007-10-14 08:48:22


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