<?php
function vnstat_install_deinstall() {
	conf_mount_rw();
	global $config;
// Remove Vnstat package and files
        exec("cd /var/db/pkg/ && pkg_delete `ls | grep vnstat`");
	exec("rm -d -R /usr/local/www/vnstat");
// Remove vnstat cron entry from config.xml
        $task_key = '/usr/local/bin/vnstat -u';
        $x_name='';
        $x=0;
        foreach($config['cron']['item'] as $item) {
            if($item['command']==$task_key) {
               $x_name = $x;
            }
            $x++;
        }
        unset($x);
        if($x_name > 0)
        {
            unset($config['cron']['item'][$x_name]);
            write_config();
        }
        configure_cron();
		conf_mount_ro();
}

function vnstat_install_config() {
        global $config;
		conf_mount_rw();
// Unpack and move Vnstat frontend 
	exec("cd ..");
	exec("tar -zxovf /usr/local/pkg/vnstat_php_frontend-1.4.1.tar.gz");
	exec("mv vnstat_php_frontend-1.4.1 /usr/local/www/vnstat2");
	exec("[ ! -d dir ] && mkdir /var/db/vnstat");
// Add cron job to config.xml
        $cron_item = array();
        $cron_item['minute']    = "*/1";
        $cron_item['hour']      = "*";
        $cron_item['mday']      = "*";
        $cron_item['month']     = "*";
        $cron_item['wday']      = "*";
        $cron_item['who']       = "root";
        $cron_item['command']   = "/usr/local/bin/vnstat -u";
        $config['cron']['item'][] = $cron_item;
// get system nic's and create a database for them
        $array_of_real_nic_names = array();
        $array_of_custom_nic_names = array();
        $ifdescrs = array('wan' => 'WAN', 'lan' => 'LAN');
		for ($j = 1; isset($config['interfaces']['opt' . $j]); $j++) {
			$ifdescrs['opt' . $j] = $config['interfaces']['opt' . $j]['descr'];
		}
         		foreach ($ifdescrs as $ifdescr => $ifname):
			$ifinfo = get_interface_info($ifdescr);
			$real_nic_names = convert_friendly_interface_to_real_interface_name($ifname);
			array_push($array_of_real_nic_names, $real_nic_names);
		endforeach;
        // Get already nic's assigned to vnstat
        exec("ls /var/db/vnstat/ | grep -v '\.'", $vnstat_nic);
        // Compare real nic's with nic's assigned to vnstat
        $result = array_diff($array_of_real_nic_names, $vnstat_nic);
        // Create database for each nic 
        foreach ($result as $result2)
        {
           exec("/usr/local/bin/vnstat -u -i ". $result2);
        }
// Find information to be writing in config.php 
	// $iface_list_array_items
        exec("ls /var/db/vnstat/ | grep -v '\.'", $vnstat_nic_in);
        $iface_list_array_items = implode("', '", $vnstat_nic_in);
        $iface_list_array = "\$iface_list = array('$iface_list_array_items');";
        // $iface_title_array_items
        $iface_title_array_items = array();
        $iface_title_array_items2 = array();
        foreach ($vnstat_nic_in as $vnstat_nic_out)
        {
        $ifdescrs = array('wan' => 'WAN', 'lan' => 'LAN');
		for ($j = 1; isset($config['interfaces']['opt' . $j]); $j++) {
			$ifdescrs['opt' . $j] = $config['interfaces']['opt' . $j]['descr'];
		}
         	foreach ($ifdescrs as $ifdescr => $ifname):
         		$real_nic_names3 = convert_friendly_interface_to_real_interface_name($ifname);
         		If ($real_nic_names3 == $vnstat_nic_out)
               {
               $ifname_out = $ifname;
               $iface_title_array_items = "\$iface_title['$vnstat_nic_out'] = '$ifname_out';\n";
	       array_push($iface_title_array_items2, $iface_title_array_items);
               }
		endforeach;
	}
        $iface_title_array = implode($iface_title_array_items2);
	// php in php static items
        $vnstat_bin2 = "\$vnstat_bin = '/usr/local/bin/vnstat';";
        $data_dir2 = "\$data_dir = './dumps';";
        $graph_format2 ="\$graph_format='svg';";
        $colorscheme2 = "\$colorscheme['light'] = array(";
        $colorscheme3 = "\$colorscheme['red'] = array(";
        $colorscheme4 = "\$colorscheme['pfSense'] = array(";

// ************ Write new config.php ******************
        $config_file = <<<EOF
<?php
    //
    // vnStat PHP frontend 1.4.1 (c)2006-2008 Bjorge Dijkstra (bjd@jooz.net)
    //
    // This program is free software; you can redistribute it and/or modify
    // it under the terms of the GNU General Public License as published by
    // the Free Software Foundation; either version 2 of the License, or
    // (at your option) any later version.
    //
    // This program is distributed in the hope that it will be useful,
    // but WITHOUT ANY WARRANTY; without even the implied warranty of
    // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    // GNU General Public License for more details.
    //
    // You should have received a copy of the GNU General Public License
    // along with this program; if not, write to the Free Software
    // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    //
    //
    // see file COPYING or at http://www.gnu.org/licenses/gpl.html 
    // for more information.
    //
    error_reporting(E_ALL | E_NOTICE);
    
    //
    // configuration parameters
    //
    // edit these to reflect your particular situation
    //

    // list of network interfaces monitored by vnStat
$iface_list_array

    //
    // optional names for interfaces
    // if there's no name set for an interface then the interface identifier
    // will be displayed instead
$iface_title_array

    //
    // There are two possible sources for vnstat data. If the 
    // variable is set then vnstat is called directly from the PHP script
    // to get the interface data. 
    //
    // The other option is to periodically dump the vnstat interface data to
    // a file (e.g. by a cronjob). In that case the  variable
    // must be cleared and set  to the location where the dumps
    // are stored. Dumps must be named 'vnstat_dump_'.
    //
    // You can generate vnstat dumps with the command:
    //   vnstat --dumpdb -i  > /path/to/data_dir/vnstat_dump_
    // 
$vnstat_bin2
$data_dir2

    // graphics format to use: svg or png
$graph_format2
    
    // Font to use for PNG graphs
    define('GRAPH_FONT',dirname(__FILE__).'/VeraBd.ttf');

    // Font to use for SVG graphs
    define('SVG_FONT', 'Verdana');

    // color schemes
    // colors are defined as R,G,B,ALPHA quads where R, G and B range from 0-255
    // and ALPHA from 0-127 where 0 is opaque and 127 completely transparent.
    //
    define('DEFAULT_COLORSCHEME', 'pfSense');

    $colorscheme2
         'stylesheet'         => 'vnstat.css',
         'image_background'   => array( 255, 255, 255,   0 ),
	 'graph_background'   => array( 220, 220, 230,   0 ),
	 'graph_background_2' => array( 205, 205, 220,   0 ),
	 'grid_stipple_1'     => array( 140, 140, 140,   0 ),
         'grid_stipple_2'     => array( 200, 200, 200,   0 ),
	 'border'             => array(   0,   0,   0,   0 ),
	 'text'               => array(   0,   0,   0,   0 ),
	 'rx'                 => array( 190, 190,  20,  50 ),
	 'rx_border'	      => array(  40,  80,  40,  90 ),
	 'tx'	              => array( 130, 160, 100,  50 ),
	 'tx_border'          => array(  80,  40,  40,  90 )
     );

    // A red colorscheme based on a contribution by Enrico Tröger
    $colorscheme3
         'stylesheet'         => 'vnstat_red.css',
         'image_background'   => array( 225, 225, 225,   0 ),
	 'graph_background'   => array( 220, 220, 230,   0 ),
	 'graph_background_2' => array( 205, 205, 220,   0 ),
	 'grid_stipple_1'     => array( 140, 140, 140,   0 ),
         'grid_stipple_2'     => array( 200, 200, 200,   0 ),
	 'border'             => array(   0,   0,   0,   0 ),
	 'text'               => array(   0,   0,   0,   0 ),
	 'rx'                 => array( 190,  20,  20,  50 ),
	 'rx_border'	      => array(  80,  40,  40,  90 ),
	 'tx'	              => array( 130, 130, 130,  50 ),
	 'tx_border'          => array(  60,  60,  60,  90 )
     );

    // A red colorscheme based on a contribution by Perry Mason
    $colorscheme4
         'stylesheet'         => 'vnstat_pfSense.css',
         'image_background'   => array( 240, 240, 240,   0 ),
	 'graph_background'   => array( 255, 255, 255,   0 ),
	 'graph_background_2' => array( 255, 255, 255,   0 ),
	 'grid_stipple_1'     => array( 144, 0, 0,   0 ),
         'grid_stipple_2'     => array( 144, 0, 0,   0 ),
	 'border'             => array(   0,   0,   0,   0 ),
	 'text'               => array(   0,   0,   0,   0 ),
	 'rx'                 => array( 190,  20,  20,  50 ),
	 'rx_border'	      => array(  80,  40,  40,  90 ),
	 'tx'	              => array( 130, 130, 130,  50 ),
	 'tx_border'          => array(  60,  60,  60,  90 )
     );
?>
EOF;

     $hf = fopen("/usr/local/www/vnstat/config.php","w");
     if(!$hf) {
     log_error("could not open /usr/local/www/vnstat/config.php for writing");
     exit;
     }
     fwrite($hf, $config_file);
     fclose($hf);
        write_config();
        configure_cron();
	conf_mount_ro();
}
?>