source: installer/opengnsys_update.sh @ e3d8dd1

#!/bin/bash
#/**
#@file    opengnsys_update.sh
#@brief   Script actualización de OpenGnSys
#@warning No se actualiza BD, ni ficheros de configuración.
#@version 0.9 - basado en opengnsys_installer.sh
#@author  Ramón Gómez - ETSII Univ. Sevilla
#@date    2010/01/27
#@version 1.0 - adaptación a OpenGnSys 1.0
#@author  Ramón Gómez - ETSII Univ. Sevilla
#@date    2011/03/02
#@version 1.0.1 - control de auto actualización del script
#@author  Ramón Gómez - ETSII Univ. Sevilla
#@date    2011/05/17
#@version 1.0.2a - obtiene valor de dirección IP por defecto
#@author  Ramón Gómez - ETSII Univ. Sevilla
#@date    2012/01/18
#@version 1.0.3 - Compatibilidad con Debian y auto configuración de acceso a BD.
#@author  Ramón Gómez - ETSII Univ. Sevilla
#@date    2012/03/12
#*/


####  AVISO: NO EDITAR variables de configuración.
####  WARNING: DO NOT EDIT configuration variables.
INSTALL_TARGET=/opt/opengnsys           # Directorio de instalación
OPENGNSYS_CLIENTUSER="opengnsys"        # Usuario Samba


# Sólo ejecutable por usuario root
if [ "$(whoami)" != 'root' ]; then
        echo "ERROR: this program must run under root privileges!!"
        exit 1
fi
# Error si OpenGnSys no está instalado (no existe el directorio del proyecto)
if [ ! -d $INSTALL_TARGET ]; then
        echo "ERROR: OpenGnSys is not installed, cannot update!!"
        exit 1
fi
# Cargar configuración de acceso a la base de datos.
if [ -r $INSTALL_TARGET/etc/ogAdmServer.cfg ]; then
        source $INSTALL_TARGET/etc/ogAdmServer.cfg
elif [ -r $INSTALL_TARGET/etc/ogAdmAgent.cfg ]; then
        source $INSTALL_TARGET/etc/ogAdmAgent.cfg
fi
OPENGNSYS_DATABASE=${OPENGNSYS_DATABASE:-"$CATALOG"}            # Base datos
OPENGNSYS_DBUSER=${OPENGNSYS_DBUSER:-"$USUARIO"}                # Usuario de acceso
OPENGNSYS_DBPASSWORD=${OPENGNSYS_DBPASSWORD:-"$PASSWORD"}       # Clave del usuario
if [ -z "$OPENGNSYS_DATABASE" -o -z "$OPENGNSYS_DBUSER" -o -z "$OPENGNSYS_DBPASSWORD" ]; then
        echo "ERROR: set OPENGNSYS_DATABASE, OPENGNSYS_DBUSER and OPENGNSYS_DBPASSWORD"
        echo "       variables, and run this script again."
fi

# Comprobar si se ha descargado el paquete comprimido (USESVN=0) o sólo el instalador (USESVN=1).
PROGRAMDIR=$(readlink -e $(dirname "$0"))
PROGRAMNAME=$(basename "$0")
DEPS="build-essential g++-multilib rsync ctorrent samba unzip netpipes debootstrap schroot squashfs-tools"
OPENGNSYS_SERVER="www.opengnsys.es"
if [ -d "$PROGRAMDIR/../installer" ]; then
        USESVN=0
else
        USESVN=1
        DEPS="$DEPS subversion"
fi
SVN_URL="http://$OPENGNSYS_SERVER/svn/branches/version1.0/"

WORKDIR=/tmp/opengnsys_update
mkdir -p $WORKDIR

LOG_FILE=/tmp/opengnsys_update.log



#####################################################################
####### Algunas funciones útiles de propósito general:
#####################################################################

# Comprobar auto-actualización.
function checkAutoUpdate()
{
        local update=0

        # Actaulizar el script si ha cambiado o no existe el original.
        if [ $USESVN -eq 1 ]; then
                svn export $SVN_URL/installer/$PROGRAMNAME
                if ! diff --brief $PROGRAMNAME $INSTALL_TARGET/lib/$PROGRAMNAME &>/dev/null || ! test -f $INSTALL_TARGET/lib/$PROGRAMNAME; then
                        mv $PROGRAMNAME $INSTALL_TARGET/lib
                        update=1
                else
                        rm -f $PROGRAMNAME
                fi
        else
                if ! diff --brief $PROGRAMDIR/$PROGRAMNAME $INSTALL_TARGET/lib/$PROGRAMNAME &>/dev/null || ! test -f $INSTALL_TARGET/lib/$PROGRAMNAME; then
                        cp -a $PROGRAMDIR/$PROGRAMNAME $INSTALL_TARGET/lib
                        update=1
                fi
        fi

        return $update
}


function getDateTime()
{
        date "+%Y%m%d-%H%M%S"
}

# Escribe a fichero y muestra por pantalla
function echoAndLog()
{
        echo $1
        DATETIME=`getDateTime`
        echo "$DATETIME;$SSH_CLIENT;$1" >> $LOG_FILE
}

function errorAndLog()
{
        echo "ERROR: $1"
        DATETIME=`getDateTime`
        echo "$DATETIME;$SSH_CLIENT;ERROR: $1" >> $LOG_FILE
}


#####################################################################
####### Funciones de copia de seguridad y restauración de ficheros
#####################################################################

# Hace un backup del fichero pasado por parámetro
# deja un -last y uno para el día
function backupFile()
{
        if [ $# -ne 1 ]; then
                errorAndLog "${FUNCNAME}(): invalid number of parameters"
                exit 1
        fi

        local fichero=$1
        local fecha=`date +%Y%m%d`

        if [ ! -f $fichero ]; then
                errorAndLog "${FUNCNAME}(): file $fichero doesn't exists"
                return 1
        fi

        echoAndLog "${FUNCNAME}(): Making $fichero back-up"

        # realiza una copia de la última configuración como last
        cp -a $fichero "${fichero}-LAST"

        # si para el día no hay backup lo hace, sino no
        if [ ! -f "${fichero}-${fecha}" ]; then
                cp -a $fichero "${fichero}-${fecha}"
        fi
}

# Restaura un fichero desde su copia de seguridad
function restoreFile()
{
        if [ $# -ne 1 ]; then
                errorAndLog "${FUNCNAME}(): invalid number of parameters"
                exit 1
        fi

        local fichero=$1

        echoAndLog "${FUNCNAME}(): restoring file $fichero"
        if [ -f "${fichero}-LAST" ]; then
                cp -a "$fichero-LAST" "$fichero"
        fi
}


#####################################################################
####### Funciones de acceso a base de datos
#####################################################################

# Actualizar la base datos
function importSqlFile()
{
        if [ $# -ne 4 ]; then
                errorAndLog "${FNCNAME}(): invalid number of parameters"
                exit 1
        fi

        local dbuser="$1"
        local dbpassword="$2"
        local database="$3"
        local sqlfile="$4"
        local tmpfile=$(mktemp)
        local status

        if [ ! -r $sqlfile ]; then
                errorAndLog "${FUNCNAME}(): Unable to read $sqlfile!!"
                return 1
        fi

        echoAndLog "${FUNCNAME}(): importing SQL file to ${database}..."
        chmod 600 $tmpfile
        sed -e "s/SERVERIP/$SERVERIP/g" -e "s/DBUSER/$OPENGNSYS_DB_USER/g" \
            -e "s/DBPASSWORD/$OPENGNSYS_DB_PASSWD/g" $sqlfile > $tmpfile
        mysql -u$dbuser -p"$dbpassword" --default-character-set=utf8 "$database" < $tmpfile
        status=$?
        rm -f $tmpfile
        if [ $status -ne 0 ]; then
                errorAndLog "${FUNCNAME}(): error importing $sqlfile in database $database"
                return 1
        fi
        echoAndLog "${FUNCNAME}(): file imported to database $database"
        return 0
}


#####################################################################
####### Funciones de instalación de paquetes
#####################################################################

# Instalar las deependencias necesarias para el actualizador.
function installDependencies()
{
        if [ $# = 0 ]; then
                echoAndLog "${FUNCNAME}(): no deps needed."
        else
                while [ $# -gt 0 ]; do
                        dpkg -s $1 2>/dev/null | grep -q "Status: install ok"
                        if [ $? -ne 0 ]; then
                                INSTALLDEPS="$INSTALLDEPS $1"
                        fi
                        shift
                done
                if [ -n "$INSTALLDEPS" ]; then
                        apt-get update && apt-get -y install --force-yes $INSTALLDEPS
                        if [ $? -ne 0 ]; then
                                errorAndLog "${FUNCNAME}(): cannot install some dependencies: $INSTALLDEPS."
                                return 1
                        fi
                fi
        fi
}


#####################################################################
####### Funciones para el manejo de Subversion
#####################################################################

function svnExportCode()
{
        if [ $# -ne 1 ]; then
                errorAndLog "${FUNCNAME}(): invalid number of parameters"
                exit 1
        fi

        local url="$1"

        echoAndLog "${FUNCNAME}(): downloading subversion code..."

        svn checkout "${url}" opengnsys
        if [ $? -ne 0 ]; then
                errorAndLog "${FUNCNAME}(): error getting code from ${url}, verify your user and password"
                return 1
        fi
        echoAndLog "${FUNCNAME}(): subversion code downloaded"
        return 0
}


############################################################
###  Detectar red
############################################################

# Comprobar si existe conexión.
function checkNetworkConnection()
{
        OPENGNSYS_SERVER=${OPENGNSYS_SERVER:-"www.opengnsys.es"}
        wget --spider -q $OPENGNSYS_SERVER
}

# Obtener los parámetros de red del servidor.
function getNetworkSettings()
{
        # Variables globales definidas:
        # - SERVERIP:   IP local de la interfaz por defecto.

        local DEVICES
        local dev

        echoAndLog "${FUNCNAME}(): Detecting network parameters."
        DEVICES="$(ip -o link show up | awk '!/loopback/ {sub(/:.*/,"",$2); print $2}')"
        for dev in $DEVICES; do
                [ -z "$SERVERIP" ] && SERVERIP=$(ip -o addr show dev $dev | awk '$3~/inet$/ {sub (/\/.*/, ""); print ($4)}')
        done
}


#####################################################################
####### Funciones específicas de la instalación de Opengnsys
#####################################################################

# Actualizar cliente OpenGnSys
function updateClientFiles()
{
        echoAndLog "${FUNCNAME}(): Updating OpenGnSys Client files."
        rsync --exclude .svn -irplt $WORKDIR/opengnsys/client/shared/* $INSTALL_TARGET/client
        if [ $? -ne 0 ]; then
                errorAndLog "${FUNCNAME}(): error while updating client structure"
                exit 1
        fi
        find $INSTALL_TARGET/client -name .svn -type d -exec rm -fr {} \; 2>/dev/null
        
        echoAndLog "${FUNCNAME}(): Updating OpenGnSys Cloning Engine files."
        rsync --exclude .svn -irplt $WORKDIR/opengnsys/client/engine/*.lib* $INSTALL_TARGET/client/lib/engine/bin
        if [ $? -ne 0 ]; then
                errorAndLog "${FUNCNAME}(): error while updating engine files"
                exit 1
        fi
        
        echoAndLog "${FUNCNAME}(): client files update success."
}

# Configurar HTTPS y exportar usuario y grupo del servicio Apache.
function apacheConfiguration ()
{
        local APACHECONF=/etc/apache2

        # Activar HTTPS, si es necesario.
        if [ -e $APACHECONF/sites-available/opengnsys.conf ]; then
                echoAndLog "${FUNCNAME}(): Configuring HTTPS access..."
                mv $APACHECONF/sites-available/opengnsys.conf $APACHECONF/sites-available/opengnsys
                a2ensite default-ssl
                a2enmod ssl
                a2dissite opengnsys.conf
                a2ensite opengnsys
                /etc/init.d/apache2 restart
        fi

        # Variables de ejecución de Apache.
        # - APACHE_RUN_USER
        # - APACHE_RUN_GROUP
        if [ -f $APACHECONF/envvars ]; then
                source $APACHECONF/envvars
        fi
        APACHE_RUN_USER=${APACHE_RUN_USER:-"www-data"}
        APACHE_RUN_GROUP=${APACHE_RUN_GROUP:-"www-data"}
}

# Copiar ficheros del OpenGnSys Web Console.
function updateWebFiles()
{
        local ERRCODE
        echoAndLog "${FUNCNAME}(): Updating web files..."
        backupFile $INSTALL_TARGET/www/controlacceso.php
        mv $INSTALL_TARGET/www $INSTALL_TARGET/WebConsole
        rsync --exclude .svn -irplt $WORKDIR/opengnsys/admin/WebConsole $INSTALL_TARGET
        ERRCODE=$?
        mv $INSTALL_TARGET/WebConsole $INSTALL_TARGET/www
        unzip -o $WORKDIR/opengnsys/admin/xajax_0.5_standard.zip -d $INSTALL_TARGET/www/xajax
        if [ $ERRCODE != 0 ]; then
                errorAndLog "${FUNCNAME}(): Error updating web files."
                exit 1
        fi
        restoreFile $INSTALL_TARGET/www/controlacceso.php
        # Cambiar permisos para ficheros especiales.
        chown -R $APACHE_RUN_USER:$APACHE_RUN_GROUP $INSTALL_TARGET/www/includes $INSTALL_TARGET/www/images/iconos
        echoAndLog "${FUNCNAME}(): Web files updated successfully."
}

# Copiar carpeta de Interface 
function updateInterfaceAdm()
{ 
        local errcode=0 
         
        # Crear carpeta y copiar Interface 
        echoAndLog "${FUNCNAME}(): Copying Administration Interface Folder" 
        mv $INSTALL_TARGET/client/interfaceAdm $INSTALL_TARGET/client/Interface
        rsync --exclude .svn -irplt $WORKDIR/opengnsys/admin/Interface $INSTALL_TARGET/client
        errcoce=$?
        mv $INSTALL_TARGET/client/Interface $INSTALL_TARGET/client/interfaceAdm
        if [ $errcode -ne 0 ]; then 
                echoAndLog "${FUNCNAME}(): error while updating admin interface" 
                exit 1
        fi 
        chmod -R +x $INSTALL_TARGET/client/interfaceAdm 
        chown $OPENGNSYS_CLIENTUSER:$OPENGNSYS_CLIENTUSER $INSTALL_TARGET/client/interfaceAdm/CambiarAcceso
        chmod 700 $INSTALL_TARGET/client/interfaceAdm/CambiarAcceso
        echoAndLog "${FUNCNAME}(): Admin interface updated successfully."
} 

# Crear documentación Doxygen para la consola web.
function makeDoxygenFiles()
{
        echoAndLog "${FUNCNAME}(): Making Doxygen web files..."
        $WORKDIR/opengnsys/installer/ogGenerateDoc.sh \
                        $WORKDIR/opengnsys/client/engine $INSTALL_TARGET/www
        if [ ! -d "$INSTALL_TARGET/www/html" ]; then
                errorAndLog "${FUNCNAME}(): unable to create Doxygen web files."
                return 1
        fi
        rm -fr "$INSTALL_TARGET/www/api"
        mv "$INSTALL_TARGET/www/html" "$INSTALL_TARGET/www/api"
        rm -fr $INSTALL_TARGET/www/{man,perlmod,rtf}
        chown -R $APACHE_RUN_USER:$APACHE_RUN_GROUP $INSTALL_TARGET/www/api
        echoAndLog "${FUNCNAME}(): Doxygen web files created successfully."
}


# Crea la estructura base de la instalación de opengnsys
function createDirs()
{
        # Crear estructura de directorios.
        echoAndLog "${FUNCNAME}(): creating directory paths in ${INSTALL_TARGET}"
        local dir

        mkdir -p ${INSTALL_TARGET}/{bin,doc,etc,lib,sbin,www}
        mkdir -p ${INSTALL_TARGET}/{client,images}
        mkdir -p ${INSTALL_TARGET}/log/clients
        ln -fs ${INSTALL_TARGET}/log /var/log/opengnsys
        # Detectar directorio de instalación de TFTP.
        if [ ! -L ${INSTALL_TARGET}/tftpboot ]; then
                for dir in /var/lib/tftpboot /srv/tftp; do
                        [ -d $dir ] && ln -fs $dir ${INSTALL_TARGET}/tftpboot
                done
        fi
        mkdir -p ${INSTALL_TARGET}/tftpboot/{pxelinux.cfg,menu.lst}
        if [ $? -ne 0 ]; then
                errorAndLog "${FUNCNAME}(): error while creating dirs. Do you have write permissions?"
                return 1
        fi

        # Crear usuario ficticio.
        if id -u $OPENGNSYS_CLIENTUSER &>/dev/null; then
                echoAndLog "${FUNCNAME}(): user \"$OPENGNSYS_CLIENTUSER\" is already created"
        else
                echoAndLog "${FUNCNAME}(): creating OpenGnSys user"
                useradd $OPENGNSYS_CLIENTUSER 2>/dev/null
                if [ $? -ne 0 ]; then
                        errorAndLog "${FUNCNAME}(): error creating OpenGnSys user"
                        return 1
                fi
        fi

        # Establecer los permisos básicos.
        echoAndLog "${FUNCNAME}(): setting directory permissions"
        chmod -R 775 $INSTALL_TARGET/{log/clients,images,tftpboot/pxelinux.cfg,tftpboot/menu.lst}
        chown -R :$OPENGNSYS_CLIENTUSER $INSTALL_TARGET/{log/clients,images,tftpboot/pxelinux.cfg,tftpboot/menu.lst}
        if [ $? -ne 0 ]; then
                errorAndLog "${FUNCNAME}(): error while setting permissions"
                return 1
        fi

        echoAndLog "${FUNCNAME}(): directory paths created"
        return 0
}

# Copia ficheros de configuración y ejecutables genéricos del servidor.
function updateServerFiles()
{
        # No copiar ficheros del antiguo cliente Initrd
        local SOURCES=( repoman/bin \
                        server/bin \
                        server/tftpboot \
                        installer/opengnsys_uninstall.sh \
                        doc )
        local TARGETS=( bin \
                        bin \
                        tftpboot \
                        lib/opengnsys_uninstall.sh \
                        doc )

        if [ ${#SOURCES[@]} != ${#TARGETS[@]} ]; then
                errorAndLog "${FUNCNAME}(): inconsistent number of array items"
                exit 1
        fi

        echoAndLog "${FUNCNAME}(): updating files in server directories"
        pushd $WORKDIR/opengnsys >/dev/null
        local i
        for (( i = 0; i < ${#SOURCES[@]}; i++ )); do
                if [ -d "$INSTALL_TARGET/${TARGETS[i]}" ]; then
                        rsync --exclude .svn -irplt "${SOURCES[i]}" $(dirname $(readlink -e "$INSTALL_TARGET/${TARGETS[i]}"))
                else
                        rsync --exclude .svn -irplt "${SOURCES[i]}" $(readlink -e "$INSTALL_TARGET/${TARGETS[i]}")
                fi
        done
        popd >/dev/null
        NEWFILES=""             # Ficheros de configuración que han cambiado de formato.
        if grep -q 'pxelinux.0' /etc/dhcp*/dhcpd*.conf; then
                echoAndLog "${FUNCNAME}(): updating DHCP files"
                perl -pi -e 's/pxelinux.0/grldr/' /etc/dhcp*/dhcpd*.conf
                for i in isc-dhcp-server dhcpd3-server dhcpd; do
                        [ -f /etc/init.d/$i ] && /etc/init.d/$i restart
                done
                NEWFILES="/etc/dhcp*/dhcpd*.conf"
        fi
        if ! diff --quiet $WORKDIR/opengnsys/admin/Sources/Services/opengnsys.init /etc/init.d/opengnsys 2>/dev/null; then
                echoAndLog "${FUNCNAME}(): updating new init file"
                backupFile /etc/init.d/opengnsys
                cp -a $WORKDIR/opengnsys/admin/Sources/Services/opengnsys.init /etc/init.d/opengnsys
                NEWFILES="$NEWFILES /etc/init.d/opengnsys"
        fi
        if grep -q "UrlMsg=.*msgbrowser.php" $INSTALL_TARGET/client/etc/ogAdmClient.cfg 2>/dev/null; then
                echoAndLog "${FUNCNAME}(): updating new client config file"
                backupFile $INSTALL_TARGET/client/etc/ogAdmClient.cfg
                perl -pi -e 's!UrlMsg=.*msgbrowser\.php!UrlMsg=http://localhost/cgi-bin/httpd-log\.sh!g' $INSTALL_TARGET/client/etc/ogAdmClient.cfg
                NEWFILES="$NEWFILES $INSTALL_TARGET/client/etc/ogAdmClient.cfg"
        fi
        echoAndLog "${FUNCNAME}(): updating cron files"
        echo "* * * * *   root   [ -x $INSTALL_TARGET/bin/opengnsys.cron ] && $INSTALL_TARGET/bin/opengnsys.cron" > /etc/cron.d/opengnsys
        echo "* * * * *   root   [ -x $INSTALL_TARGET/bin/torrent-creator ] && $INSTALL_TARGET/bin/torrent-creator" > /etc/cron.d/torrentcreator
        echoAndLog "${FUNCNAME}(): server files updated successfully."
}

####################################################################
### Funciones de compilación de código fuente de servicios
####################################################################

# Recompilar y actualiza los serivicios y clientes.
function compileServices()
{
        local hayErrores=0

        # Compilar OpenGnSys Server
        echoAndLog "${FUNCNAME}(): Recompiling OpenGnSys Admin Server"
        pushd $WORKDIR/opengnsys/admin/Sources/Services/ogAdmServer
        make && mv ogAdmServer $INSTALL_TARGET/sbin
        if [ $? -ne 0 ]; then
                echoAndLog "${FUNCNAME}(): error while compiling OpenGnSys Admin Server"
                hayErrores=1
        fi
        popd
        # Compilar OpenGnSys Repository Manager
        echoAndLog "${FUNCNAME}(): Recompiling OpenGnSys Repository Manager"
        pushd $WORKDIR/opengnsys/admin/Sources/Services/ogAdmRepo
        make && mv ogAdmRepo $INSTALL_TARGET/sbin
        if [ $? -ne 0 ]; then
                echoAndLog "${FUNCNAME}(): error while compiling OpenGnSys Repository Manager"
                hayErrores=1
        fi
        popd
        # Compilar OpenGnSys Agent
        echoAndLog "${FUNCNAME}(): Recompiling OpenGnSys Agent"
        pushd $WORKDIR/opengnsys/admin/Sources/Services/ogAdmAgent
        make && mv ogAdmAgent $INSTALL_TARGET/sbin
        if [ $? -ne 0 ]; then
                echoAndLog "${FUNCNAME}(): error while compiling OpenGnSys Agent"
                hayErrores=1
        fi
        popd

        # Compilar OpenGnSys Client
        echoAndLog "${FUNCNAME}(): Recompiling OpenGnSys Client"
        pushd $WORKDIR/opengnsys/admin/Sources/Clients/ogAdmClient
        make && mv ogAdmClient $INSTALL_TARGET/client/bin
        if [ $? -ne 0 ]; then
                echoAndLog "${FUNCNAME}(): error while compiling OpenGnSys Client"
                hayErrores=1
        fi
        popd

        return $hayErrores
}


####################################################################
### Funciones instalacion cliente OpenGnSys
####################################################################

# Actualizar nuevo cliente para OpenGnSys 1.0
function updateClient()
{
        local DOWNLOADURL="http://$OPENGNSYS_SERVER/downloads"
        local FILENAME=ogLive-oneiric-3.0.0-14-generic-r2439.iso
        local SOURCEFILE=$DOWNLOADURL/$FILENAME
        local TARGETFILE=$INSTALL_TARGET/lib/$FILENAME
        local SOURCELENGTH
        local TARGETLENGTH
        local TMPDIR=/tmp/${FILENAME%.iso}
        local OGINITRD=$INSTALL_TARGET/tftpboot/ogclient/oginitrd.img
        local SAMBAPASS

        # Comprobar si debe actualizarse el cliente.
        SOURCELENGTH=$(LANG=C wget --spider $SOURCEFILE 2>&1 | awk '/Length:/ {print $2}')
        TARGETLENGTH=$(ls -l $TARGETFILE 2>/dev/null | awk '{print $5}')
        [ -z $TARGETLENGTH ] && TARGETLENGTH=0
        if [ "$SOURCELENGTH" != "$TARGETLENGTH" ]; then
                echoAndLog "${FUNCNAME}(): Loading Client"
                wget $DOWNLOADURL/$FILENAME -O $TARGETFILE
                if [ ! -s $TARGETFILE ]; then
                        errorAndLog "${FUNCNAME}(): Error loading OpenGnSys Client"
                        return 1
                fi
                # Obtener la clave actual de acceso a Samba para restaurarla.
                if [ -f $OGINITRD ]; then
                        SAMBAPASS=$(gzip -dc $OGINITRD | \
                                    cpio -i --to-stdout scripts/ogfunctions 2>&1 | \
                                    grep "^[    ]*OPTIONS=" | \
                                    sed 's/\(.*\)pass=\(\w*\)\(.*\)/\2/')
                fi
                # Montar la imagen ISO del ogclient, actualizar ficheros y desmontar.
                echoAndLog "${FUNCNAME}(): Updatting ogclient files"
                mkdir -p $TMPDIR
                mount -o loop,ro $TARGETFILE $TMPDIR
                rsync -irlt $TMPDIR/ogclient $INSTALL_TARGET/tftpboot
                umount $TMPDIR
                rmdir $TMPDIR
                # Recuperar la clave de acceso a Samba.
                if [ -n "$SAMBAPASS" ]; then
                        echoAndLog "${FUNCNAME}(): Restoring client access key"
                        echo -ne "$SAMBAPASS\n$SAMBAPASS\n" | \
                                        $INSTALL_TARGET/bin/setsmbpass
                fi
                # Establecer los permisos.
                find -L $INSTALL_TARGET/tftpboot -type d -exec chmod 755 {} \;
                find -L $INSTALL_TARGET/tftpboot -type f -exec chmod 644 {} \;
                chown -R :$OPENGNSYS_CLIENTUSER $INSTALL_TARGET/tftpboot/ogclient
                chown -R $APACHE_RUN_USER:$APACHE_RUN_GROUP $INSTALL_TARGET/tftpboot/{menu.lst,pxelinux.cfg}
                
                # Ofrecer md5 del kernel y vmlinuz para ogupdateinitrd en cache
                cp -av $INSTALL_TARGET/tftpboot/ogclient/ogvmlinuz* $INSTALL_TARGET/tftpboot
                cp -av $INSTALL_TARGET/tftpboot/ogclient/oginitrd.img* $INSTALL_TARGET/tftpboot
                
                echoAndLog "${FUNCNAME}(): Client update successfully"
        else
                echoAndLog "${FUNCNAME}(): Client is already updated"
        fi
}

# Resumen de actualización.
function updateSummary()
{
        # Actualizar fichero de versión y revisión.
        local VERSIONFILE="$INSTALL_TARGET/doc/VERSION.txt"
        local REVISION=$(LANG=C svn info $SVN_URL|awk '/Revision:/ {print "r"$2}')

        [ -f $VERSIONFILE ] || echo "OpenGnSys" >$VERSIONFILE
        perl -pi -e "s/($| r[0-9]*)/ $REVISION/" $VERSIONFILE

        echo
        echoAndLog "OpenGnSys Update Summary"
        echo       "========================"
        echoAndLog "Project version:                  $(cat $VERSIONFILE)"
        if [ -n "$NEWFILES" ]; then
                echoAndLog "Check the new config files:       $(echo $NEWFILES)"
        fi
        echo
}



#####################################################################
####### Proceso de actualización de OpenGnSys
#####################################################################


echoAndLog "OpenGnSys update begins at $(date)"

pushd $WORKDIR

# Comprobar si hay conexión y detectar parámetros de red por defecto.
checkNetworkConnection
if [ $? -ne 0 ]; then
        errorAndLog "Error connecting to server. Causes:"
        errorAndLog " - Network is unreachable, review devices parameters."
        errorAndLog " - You are inside a private network, configure the proxy service."
        errorAndLog " - Server is temporally down, try agian later."
        exit 1
fi
getNetworkSettings

# Comprobar auto-actualización del programa.
if [ "$PROGRAMDIR" != "$INSTALL_TARGET/bin" ]; then
        checkAutoUpdate
        if [ $? -ne 0 ]; then
                echoAndLog "OpenGnSys updater has been overwritten."
                echoAndLog "Please, re-execute this script."
                exit
        fi
fi

# Instalar dependencias.
installDependencies $DEPS
if [ $? -ne 0 ]; then
        errorAndLog "Error: you may install all needed dependencies."
        exit 1
fi

# Arbol de directorios de OpenGnSys.
createDirs ${INSTALL_TARGET}
if [ $? -ne 0 ]; then
        errorAndLog "Error while creating directory paths!"
        exit 1
fi

# Si es necesario, descarga el repositorio de código en directorio temporal
if [ $USESVN -eq 1 ]; then
        svnExportCode $SVN_URL
        if [ $? -ne 0 ]; then
                errorAndLog "Error while getting code from svn"
                exit 1
        fi
else
        ln -fs "$(dirname $PROGRAMDIR)" opengnsys
fi

# Si existe fichero de actualización de la base de datos; aplicar cambios.
INSTVERSION=$(awk '{print $2}' $INSTALL_TARGET/doc/VERSION.txt)
REPOVERSION=$(awk '{print $2}' $WORKDIR/opengnsys/doc/VERSION.txt)
OPENGNSYS_DBUPDATEFILE="$WORKDIR/opengnsys/admin/Database/$OPENGNSYS_DATABASE-$INSTVERSION-$REPOVERSION.sql"
if [ -f $OPENGNSYS_DBUPDATEFILE ]; then
        echoAndLog "Updating tables from version $INSTVERSION to $REPOVERSION"
        importSqlFile $OPENGNSYS_DBUSER $OPENGNSYS_DBPASSWORD $OPENGNSYS_DATABASE $OPENGNSYS_DBUPDATEFILE
else
        echoAndLog "Database unchanged."
fi

# Actualizar ficheros complementarios del servidor
updateServerFiles
if [ $? -ne 0 ]; then
        errorAndLog "Error updating OpenGnSys Server files"
        exit 1
fi

# Actualizar ficheros del cliente
updateClientFiles
updateInterfaceAdm

# Actualizar páqinas web
apacheConfiguration
updateWebFiles
if [ $? -ne 0 ]; then
        errorAndLog "Error updating OpenGnSys Web Admin files"
        exit 1
fi
# Generar páginas Doxygen para instalar en el web
makeDoxygenFiles

# Recompilar y actualizar los servicios del sistema
compileServices

# Actaulizar ficheros auxiliares del cliente
updateClient
if [ $? -ne 0 ]; then
        errorAndLog "Error updating clients"
        exit 1
fi

# Eliminamos el fichero de estado del tracker porque es incompatible entre los distintos paquetes
if [ -f /tmp/dstate ]; then
        rm -f /tmp/dstate
fi

# Mostrar resumen de actualización.
updateSummary

#rm -rf $WORKDIR
echoAndLog "OpenGnSys update finished at $(date)"

popd