This snippet overrides Apache’s default presentation of folder contents.
/**
* CustomDirectoryListing
*
* A simple script for custom directory listing. Adds support for
* - maximum amount of items per row
* - image listing with automatic resizing
* - displaying images before other file types for a prettier layout
*
* The above options can be controlled via the corresponding $_GET variables,
* @see below.
*
* USAGE
* Simply put this file into the directory you want to be listed. You might want
* to set the defaultWidth and defaultHeight, as well as maxItemsPerRow to your
* needs.
*
* @author Matthias Kerstner info@kerstner.at
* @copyright Matthias Kerstner info@kerstner.at
* @version 1.0
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
mb_internal_encoding('UTF-8');
mb_regex_encoding('UTF-8');
$maxItemsPerRow = (isset($_GET['maxItemsPerRow']) && (int)$_GET['maxItemsPerRow'] > 0)
? (int)$_GET['maxItemsPerRow']-1 : 4;
$defaultWidth = (isset($_GET['defaultWidth']) && (int)$_GET['defaultWidth'] > 0)
? (int)$_GET['defaultWidth'] : 150;
$defaultHeight = (isset($_GET['defaultHeight']) && (int)$_GET['defaultHeight'] > 0)
? (int)$_GET['defaultHeight'] : 100;
$imagesFirst = isset($_GET['imagesFirst']);
/**
* Calculates resized size based on $dstHeight and $dstWidth by maintaining the
* original width-height-ratio. Checks which dimension is greater and sets it to
* a fixed value specified. The remaining dimension is resized using the
* original ratio to the other dimension's new fixed value.
* @param <string> $srcFile
* @param <int> $dstHeight
* @param <int> $dstWidth
* @return <array> [0]=width, [1]=height
*/
function getResizeSize($srcFile, $dstHeight, $dstWidth) {
$srcFileInfo = getimagesize($srcFile); //[0]=width,[1]=height
if(empty($srcFileInfo))
throw new Exception('Failed to read image fileinfo.');
if($srcFileInfo[0] <= (int)$dstWidth &&
$srcFileInfo[1] <= (int)$dstHeight) {
return array($srcFileInfo[0], $srcFileInfo[1]); //nothing to do
}
$newSize = array();
if($srcFileInfo[0] >= $srcFileInfo[1]) { //calculate new dimensions while keeping current ratio
$newSize[0] = $dstWidth;
$newSize[1] = ($srcFileInfo[1]/$srcFileInfo[0]) * $dstWidth;
} else {
$newSize[0] = ($srcFileInfo[0]/$srcFileInfo[1]) * $dstHeight;
$newSize[1] = $dstHeight;
}
return $newSize;
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Custom Directory Listing</title>
<style type="text/css">
html {
font-family: Courier, Verdana, sans-serif;
font-size: 9pt;
border: 0;
}
</style>
</head>
<body>
<?php
try {
$handle = opendir('.');
$file = null;
if(!$handle)
throw new Exception('Failed to read directory.');
$nonImageItems = array();
$itemPerRowCount = 0;
while(false !== ($file = readdir($handle))) {
if($itemPerRowCount >= $maxItemsPerRow) {
echo '<br/>';
$itemPerRowCount = 0;
}
if($file !== "." && $file !== "..") {
if(mb_eregi('.jpg$', $file) === 1) { //image
$filesize = getResizeSize($file, $defaultWidth, $defaultHeight);
echo '<a href="'.$file.'">'.
'<img src="'.$file.'" width="'.$filesize[0].'" '.
'height="'.$filesize[1].'" alt="'.$file.'" '.
'border="0"/>'.
'</a> ';
$itemPerRowCount++;
} else {
if($imagesFirst)
$nonImageItems[] = $file;
else {
echo '<a href="'.$file.'">'.$file.'</a> ';
$itemPerRowCount++;
}
}
}
}
closedir($handle);
$itemPerRowCount = 0;
foreach($nonImageItems as $v) { //display non-image files afterwards
if($itemPerRowCount >= $maxItemsPerRow) {
echo '<br/>';
$itemPerRowCount = 0;
}
echo '<a href="'.$v.'">'.$v.'</a> ';
$itemPerRowCount++;
}
} catch(Exception $e) {
echo 'Sorry an error occurred: '.$e->getMessage();
}
?>
</body>
</html>
Leave a Reply