You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
290 lines
8.0 KiB
290 lines
8.0 KiB
<?php
|
|
/*
|
|
vim: set expandtab tabstop=4 shiftwidth=4:
|
|
==============================================================================
|
|
Dokeos - elearning and course management software
|
|
|
|
Copyright (c) 2004 Dokeos S.A.
|
|
Copyright (c) 2003 Ghent University (UGent)
|
|
Copyright (c) 2001 Universite catholique de Louvain (UCL)
|
|
|
|
For a full list of contributors, see "credits.txt".
|
|
The full license can be read in "license.txt".
|
|
|
|
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.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
|
|
==============================================================================
|
|
*/
|
|
/**
|
|
==============================================================================
|
|
* This is the file display library for Dokeos.
|
|
* Include/require it in your code to use its functionality.
|
|
*
|
|
* @package dokeos.library
|
|
==============================================================================
|
|
*/
|
|
|
|
|
|
/*
|
|
==============================================================================
|
|
GENERIC FUNCTIONS : FOR OLDER PHP VERSIONS
|
|
==============================================================================
|
|
*/
|
|
if ( ! function_exists('array_search') )
|
|
{
|
|
/**
|
|
* Searches haystack for needle and returns the key
|
|
* if it is found in the array, FALSE otherwise.
|
|
*
|
|
* Natively implemented in PHP since 4.0.5 version.
|
|
* This function is intended for previous version.
|
|
*
|
|
* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
|
|
* @param - needle (mixed)
|
|
* @param - haystack (array)
|
|
* @return - array key or FALSE
|
|
*
|
|
* @see - http://www.php.net/array_search
|
|
*/
|
|
function array_search($needle, $haystack)
|
|
{
|
|
while (list($key, $val) = each($haystack))
|
|
if ($val == $needle)
|
|
return $key;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/*
|
|
==============================================================================
|
|
FILE DISPLAY FUNCTIONS
|
|
==============================================================================
|
|
*/
|
|
/**
|
|
* Define the image to display for each file extension.
|
|
* This needs an existing image repository to work.
|
|
*
|
|
* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
|
|
* @param - $file_name (string) - Name of a file
|
|
* @return - The gif image to chose
|
|
*/
|
|
function choose_image($file_name)
|
|
{
|
|
static $type, $image;
|
|
|
|
/* TABLES INITIALISATION */
|
|
if (!$type || !$image)
|
|
{
|
|
$type['word' ] = array('doc', 'dot', 'rtf', 'mcw', 'wps');
|
|
$type['web' ] = array('htm', 'html', 'htx', 'xml', 'xsl', 'php');
|
|
$type['image' ] = array('gif', 'jpg', 'png', 'bmp', 'jpeg');
|
|
$type['audio' ] = array('wav', 'mid', 'mp2', 'mp3', 'midi', 'sib');
|
|
$type['video' ] = array('mp4', 'mov', 'rm', 'pls', 'mpg', 'mpeg', 'au', 'flv', 'avi', 'wmv', 'asf');
|
|
$type['excel' ] = array('xls', 'xlt', 'xls', 'xlt');
|
|
$type['compressed'] = array('zip', 'tar', 'rar', 'gz');
|
|
$type['code' ] = array('js', 'cpp', 'c', 'java', 'phps');
|
|
$type['acrobat' ] = array('pdf');
|
|
$type['powerpoint'] = array('ppt');
|
|
$type['flash' ] = array('fla', 'swf');
|
|
$type['text' ] = array('txt','log');
|
|
$type['oo_writer' ] = array('odt','sxw');
|
|
$type['oo_calc' ] = array('ods','sxc');
|
|
$type['oo_impress'] = array('odp','sxi');
|
|
$type['oo_draw' ] = array('odg','sxd');
|
|
|
|
$image['word' ] = 'word.gif';
|
|
$image['web' ] = 'file_html.gif';
|
|
$image['image' ] = 'file_image.gif';
|
|
$image['audio' ] = 'file_sound.gif';
|
|
$image['video' ] = 'film.gif';
|
|
$image['excel' ] = 'excel.gif';
|
|
$image['compressed'] = 'file_zip.gif';
|
|
$image['code' ] = 'file_txt.gif';
|
|
$image['acrobat' ] = 'file_pdf.gif';
|
|
$image['powerpoint'] = 'powerpoint.gif';
|
|
$image['flash' ] = 'file_flash.gif';
|
|
$image['text' ] = 'file_txt.gif';
|
|
$image['oo_writer' ] = 'word.gif';
|
|
$image['oo_calc' ] = 'excel.gif';
|
|
$image['oo_impress'] = 'powerpoint.gif';
|
|
$image['oo_draw' ] = 'file_oo_draw.gif';
|
|
}
|
|
|
|
/* FUNCTION CORE */
|
|
$extension = array();
|
|
if (ereg('\.([[:alnum:]]+)$', $file_name, $extension))
|
|
{
|
|
$extension[1] = strtolower($extension[1]);
|
|
|
|
foreach ($type as $generic_type => $extension_list)
|
|
{
|
|
if (in_array($extension[1], $extension_list))
|
|
{
|
|
return $image[$generic_type];
|
|
}
|
|
}
|
|
}
|
|
|
|
return 'defaut.gif';
|
|
}
|
|
|
|
/**
|
|
* Transform the file size in a human readable format.
|
|
*
|
|
* @param int Size of the file in bytes
|
|
* @return string A human readable representation of the file size
|
|
*/
|
|
function format_file_size($file_size)
|
|
{
|
|
if($file_size >= 1073741824)
|
|
{
|
|
$file_size = round($file_size / 1073741824 * 100) / 100 . 'G';
|
|
}
|
|
elseif($file_size >= 1048576)
|
|
{
|
|
$file_size = round($file_size / 1048576 * 100) / 100 . 'M';
|
|
}
|
|
elseif($file_size >= 1024)
|
|
{
|
|
$file_size = round($file_size / 1024 * 100) / 100 . 'k';
|
|
}
|
|
else
|
|
{
|
|
$file_size = $file_size . 'B';
|
|
}
|
|
|
|
return $file_size;
|
|
}
|
|
|
|
/**
|
|
* Transform a UNIX time stamp in human readable format date.
|
|
*
|
|
* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
|
|
* @param - $date - UNIX time stamp
|
|
* @return - A human readable representation of the UNIX date
|
|
*/
|
|
function format_date($date)
|
|
{
|
|
return date('d.m.Y', $date);
|
|
}
|
|
|
|
/**
|
|
* Transform the file path to a URL.
|
|
*
|
|
* @param - $file_path (string) - Relative local path of the file on the hard disk
|
|
* @return - Relative url
|
|
*/
|
|
function format_url($file_path)
|
|
{
|
|
$path_component = explode('/', $file_path);
|
|
|
|
$path_component = array_map('rawurlencode', $path_component);
|
|
|
|
return implode('/', $path_component);
|
|
}
|
|
|
|
/**
|
|
* Get the most recent time the content of a folder was changed.
|
|
*
|
|
* @param - $dir_name (string) - Path of the dir on the hard disk
|
|
* @param - $do_recursive (bool) - Traverse all folders in the folder?
|
|
* @return - Time the content of the folder was changed
|
|
*/
|
|
function recent_modified_file_time($dir_name, $do_recursive = true)
|
|
{
|
|
$dir = dir($dir_name);
|
|
$last_modified = 0;
|
|
|
|
while(($entry = $dir->read()) !== false)
|
|
{
|
|
if ($entry != '.' && $entry != '..')
|
|
continue;
|
|
|
|
if (!is_dir($dir_name.'/'.$entry))
|
|
$current_modified = filemtime($dir_name.'/'.$entry);
|
|
elseif ($do_recursive)
|
|
$current_modified = recent_modified_file_time($dir_name.'/'.$entry, true);
|
|
|
|
if ($current_modified > $last_modified)
|
|
$last_modified = $current_modified;
|
|
}
|
|
|
|
$dir->close();
|
|
|
|
//prevents returning 0 (for empty directories)
|
|
return ($last_modified == 0) ? filemtime($dir_name) : $last_modified;
|
|
}
|
|
|
|
/**
|
|
* Get the total size of a directory.
|
|
*
|
|
* @param - $dir_name (string) - Path of the dir on the hard disk
|
|
* @return - Total size in bytes
|
|
*/
|
|
function folder_size($dir_name)
|
|
{
|
|
$size = 0;
|
|
|
|
if ($dir_handle = opendir($dir_name))
|
|
{
|
|
while (($entry = readdir($dir_handle)) !== false)
|
|
{
|
|
if($entry == '.' || $entry == '..')
|
|
continue;
|
|
|
|
if(is_dir($dir_name.'/'.$entry))
|
|
$size += folder_size($dir_name.'/'.$entry);
|
|
else
|
|
$size += filesize($dir_name.'/'.$entry);
|
|
}
|
|
|
|
closedir($dir_handle);
|
|
}
|
|
|
|
return $size;
|
|
}
|
|
|
|
/**
|
|
* Calculates the total size of a directory by adding the sizes (that
|
|
* are stored in the database) of all files & folders in this directory.
|
|
*
|
|
* @param string $path
|
|
* @param boolean $can_see_invisible
|
|
* @return Total size
|
|
*/
|
|
function get_total_folder_size($path, $can_see_invisible = false)
|
|
{
|
|
$table_itemproperty = Database::get_course_table(TABLE_ITEM_PROPERTY);
|
|
$table_document = Database::get_course_table(TABLE_DOCUMENT);
|
|
$tool_document = TOOL_DOCUMENT;
|
|
|
|
$visibility_rule = 'props.visibility ' . ($can_see_invisible ? '<> 2' : '= 1');
|
|
|
|
$sql = <<<EOQ
|
|
SELECT SUM(size)
|
|
FROM $table_itemproperty AS props, $table_document AS docs
|
|
WHERE docs.id = props.ref
|
|
AND props.tool = '$tool_document'
|
|
AND path LIKE '$path/%'
|
|
AND $visibility_rule
|
|
EOQ;
|
|
|
|
$result = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
|
if($result && mysql_num_rows($result) != 0)
|
|
{
|
|
$row = mysql_fetch_row($result);
|
|
return $row[0] == null ? 0 : $row[0];
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
?>
|
|
|