Fedora Core 4 - Startup script for Squid
========================================

Public domain
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    #!/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_