simple file browser

Feel free to improve it here, but PLEASE fill the 'notes' field below to explain your contribution.

[h3]documentation[/h3] An url like http://www.your-site.com/index.php/browser/[b]virtual_root[/b]/[b]path[/b] will allow people to browse directories and files that are under [b]path[/b] from [b]absolute_path[/b]. You define an [b]absolute_path[/b] (in the file system of the server) for a [b]virtual_root[/b] with this array [code] var $roots = array( 'virtual_root' => 'absolute_path', //... ); [/code] This may allow us to browse files that are outside your web root, forcing the browsing via CI, and allowing us full control on accesses (not provided for the moment).

[h3]todo[/h3]

• stats for directories and files
• links for sorting directories and files
• clever css markup
• several examples of stylesheets
• bells and hooks and whistles and filters to check accesses
• ...

[h3]the controller[/h3] [code] <?php

// may only work if this controller is not in a subfolder

class Browser extends Controller {

var $roots = array(
    'test' => '/home'
    );

function Welcome()
{
    parent::Controller();
    // FAL check here
}

function _remap()
{
    $segment_array = $this->uri->segment_array();
    
    // first and second segments are our controller and the 'virtual root'
    $controller = array_shift( $segment_array );
    $virtual_root = array_shift( $segment_array );
    
    if( empty( $this->roots )) exit( 'no roots defined' );
    
    // let's check if a virtual root is choosen
    // if this controller is the default controller, first segment is 'index'
    if ( $controller == 'index' OR $virtual_root == '' ) show_404();
    
    // let's check if a virtual root matches
    if ( ! array_key_exists( $virtual_root, $this->roots )) show_404();
    
    // build absolute path
    $path_in_url = '';
    foreach ( $segment_array as $segment ) $path_in_url.= $segment.'/';
    $absolute_path = $this->roots[ $virtual_root ].'/'.$path_in_url;
    $absolute_path = rtrim( $absolute_path ,'/' );
    
    // is it a directory or a file ?
    if ( is_dir( $absolute_path ))
    {
        // we'll need this to build links
        $this->load->helper('url');
        
        $dirs = array();
        $files = array();
        // let's traverse the directory
        if ( $handle = @opendir( $absolute_path ))
        {
            while ( false !== ($file = readdir( $handle )))
            {
                if (( $file != "." AND $file != ".." ))
                {
                    if ( is_dir( $absolute_path.'/'.$file ))
                    {
                        $dirs[]['name'] = $file;
                    }
                    else
                    {
                        $files[]['name'] = $file;
                    }
                }
            }
            closedir( $handle );
            sort( $dirs );
            sort( $files );
            
            
        }
        // parent directory
        // here to ensure it's available and the first in the array
        if ( $path_in_url != '' )
            array_unshift ( $dirs, array( 'name' => '..' ));
        
        // send the view
        $data = array(
            'controller' => $controller,
            'virtual_root' => $virtual_root,
            'path_in_url' => $path_in_url,
            'dirs' => $dirs,
            'files' => $files,
            );
        $this->load->view( 'browser', $data );
    }
    else
    {
        // it's not a directory, but is it a file ?
        if ( is_file( $absolute_path ))
        {
            // let's serve the file
            header ('Cache-Control: no-store, no-cache, must-revalidate');
            header ('Cache-Control: pre-check=0, post-check=0, max-age=0');
            header ('Pragma: no-cache');
             
            header('Content-Description: File Transfer');
            header('Content-Type: application/octet-stream');
            header('Content-Length: ' . filesize( ".$absolute_path." ));
            header('Content-Disposition: attachment; filename=' . basename( $absolute_path ));
            
            @readfile( $absolute_path );
        }
        else
        {
            show_404();
        }
    }
}

} [/code]

[h3]the view[/h3] [code]

<?=$virtual_root?>

<?='/'.$path_in_url?>

<?php $prefix = $controller.'/'.$virtual_root.'/'.$path_in_url; if (!empty($dirs)) foreach( $dirs as $dir ) echo 'd '.anchor($prefix.$dir['name'], $dir['name']).'
';

if (!empty($files)) foreach( $files as $file )
    echo anchor($prefix.$file['name'], $file['name']).'<br>';

?> [/code]