xNightR00T File Manager

# this file includes general purpose Bourne shell functions for use of the installation shell wrappers

if [ "$1" = "--debug" ]; then
	shift
	DEBUG=1
fi
# set the Apache user under which WD runs its daemons
if [ "OS400" != "`uname -s`" ]; then
	# force all daemons to run under "zend" user (except for IBMi)
	WEB_USER="zend"
fi
WD_UID=`id -u $WEB_USER`
WD_GID=`id -g $WEB_USER`

# If we are using bash, we export the color ENV vars and set ECHO_CMD to be "echo -e" 
ECHO_CMD="echo "
if [ -n "$BASH" ]; then
    OK_COLOR="\033[32m"
    FAIL_COLOR="\033[31m"
    T_RESET="\033[0m"
    ECHO_CMD="echo -e "
    export OK_COLOR FAIL_COLOR T_RESET ECHO_CMD
fi
# first off, set decent umask
umask 0022
# this we do because in Solaris, there are nice commands in /usr/xpg4/bin/ that behave like you'd expect :)
if [ `uname` = "SunOS" ]; then
    PATH="/usr/xpg4/bin/:/usr/ucb:$PATH"
elif [ `uname` = 'Darwin' ];then
    MD5BIN="md5"
else
    MD5BIN="md5sum"
fi
# checks terminal geometry and exits if it's unsuitable for running an Ncurses installation.
detect_tty_size()
{
    LINES=`tput lines`
    COLUMNS=`tput cols`
    if [ "$LINES" -lt 24 -o "$COLUMNS" -lt 80 ];then
        echo -e "Dialog based installations require a minimal terminal size [geometry] of 80x24 characters.\nIf you decide to run a dialog based installation increase your terminal size or alternatively, use the TTY (Text) based installation by running ./install-tty\n"
	exit
    fi
}

# ensures there's enough space in the TMPDIR and exits otherwise 
verify_tmp_free_space()
{
    if [ ! -d "$TMPDIR" ]; then 
        TMPDIR="/tmp"
    fi
    FREE_BYTES=`df -Pk "$TMPDIR"|tail -1|awk -F " " '{print $4}'`
    if [ $FREE_BYTES -lt 10240 ];then
        echo -e "Insufficient disk space.\nZend Platform requires a minimum of 10M available disk space in $TMPDIR.\nPlease clear space in $TMPDIR and re-run the installer.\n";
        exit 
    fi
}
# verifies the package arch is compatible with machine's arch and exits otherwise 
test_arch ()
{
    machine=`uname -m 2> /dev/null`
    M64=x86_64
    if [ "$machine" = "$M64" ]; then
        pack_arch=`egrep -m1 -o "os=.+\-(\w|_)+" Inventory.xml|cut -d "-" -f 3 2> /dev/null`
        if [ $pack_arch != $machine ]; then
                echo -e "You are attempting to install an i386 package on an $M64 machine.\n\nFor a list of supported configurations, please refer to the Zend Platform compatibility table."
                exit
        fi
    fi
}
# exits if the UID is not 0 [root]
check_root_privileges()
{
	UNAME=`id -un 2>/dev/null`
	if [ ! -z "$UNAME" ]; then
		if [ "$UNAME" != "zend" -a "$UNAME" != "root" ]; then
		    echo "You need to be root or zend users to run this script!";
		    exit 1
		fi
	else
		echo "Could not detect UID";
		exit 1
	fi
	return 0;
}
check_selinux()
{
    SELINUX_OPTS="httpd_disable_trans allow_execheap allow_execmem allow_execstack";
    SELINUX_MOD_REQUIRED=0;
    type setsebool 2> /dev/null
    if [ $? -eq 0 ]; then
        if type getenforce > /dev/null 2>&1;then
	    IS_ENFORCE=`getenforce`
        fi
        if [ "$IS_ENFORCE" = 'Enforcing' ]; then
            for opt in $SELINUX_OPTS
            do
                RES=`getsebool $opt 2>/dev/null|cut -d " " -f3`
                if [ "$RES" = 'off' -o "$RES" = 'inactive' ];then
                        OPTS="$OPTS"\ $opt;
                        SELINUX_MOD_REQUIRED=1;
                fi
            done
            if [ "$SELINUX_MOD_REQUIRED" -eq 1 ];then
                echo -e "\nInstallation has detected that SELinux is enabled.\nIn order to work with SELinux, please issue the following command:\n";
                for opt in $OPTS
                do 
                        SETSEBOOL_OPTS="$SETSEBOOL_OPTS"\ "$opt=1"
                done
                echo "setsebool -P $SETSEBOOL_OPTS";
                echo -e "\nAfter executing this command, please rerun the installation.\n";
                exit 11;
            fi
        fi
    fi
}                                                                                                                        

is_disabled()
{
    if [ ! -z "${DISABLE}" ]; then
        ${ECHO_CMD} "${NAME} is disabled! To enable it, use Zend Platform Setup Tool."
        exit 1
    fi
}
report()
{
    if [ $1 = 0 ];then
        $ECHO_CMD "$2 $NAME ${OK_COLOR}[OK]${T_RESET}" 
        return $1
    else
        ${ECHO_CMD} "$2 $NAME ${FAIL_COLOR}[FAILED]${T_RESET}"
        return $1
    fi
}

launch()
{
	if [ -z "$DEBUG" ]; then
		exec 3>/dev/null 4>&3
	else
		exec 3>&1 4>&2	
	fi
    $WATCHDOG -i $BINARY -v3 1>&3 2>&4
    RET=$?
    if [ $RET -eq 0 ];then
        $ECHO_CMD "$BINARY watchdog is up and running.. ${OK_COLOR}[OK]${T_RESET}"
        return $RET 
    else
        $WATCHDOG -u $WD_UID -g $WD_GID -s $BINARY 1>&3 2>&4
        report $? "Starting"
    fi
}

_kill()
{
    $WATCHDOG -i $BINARY > /dev/null 2>&1
    if [ $? -eq 1 ];then
        $ECHO_CMD "$BINARY is not running"
    else
        $WATCHDOG -t $BINARY > /dev/null 2>&1
        report $? "Stopping"
    fi
}
apache_status()
{
    kill -0 `cat $1 /dev/null 2>&1` > /dev/null 2>&1
    RET=$?
    if [ $RET -eq 0 ];then
        ${ECHO_CMD} "[ `date "+%d.%m.%Y %H:%M:%S"` SYSTEM] Apache is running."
    else
        ${ECHO_CMD} "[ `date "+%d.%m.%Y %H:%M:%S"` SYSTEM] Apache is not running."
    fi
    return $RET
}

usage()
{
		echo "Usage: $0 [--debug] {start|stop|status|restart}"
}