libraries/file_listing.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Functions for listing directories
   5  *
   6  * @version $Id$
   7  */
   8
   9 /**
  10  * Returns array of filtered file names
  11  *
  12  * @param   string  directory to list
  13  * @param   string  regular expression to match files
  14  * @returns array   sorted file list on success, FALSE on failure
  15  */
  16 function PMA_getDirContent($dir, $expression = '')
  17 {
  18     if ($handle = @opendir($dir)) {
  19         $result = array();
  20         if (substr($dir, -1) != '/') {
  21             $dir .= '/';
  22         }
  23         while ($file = @readdir($handle)) {
  24         // for PHP < 5.2.4, is_file() gives a warning when using open_basedir
  25         // and verifying '..' or '.'
  26             if ('.' != $file && '..' != $file && is_file($dir . $file) && ($expression == '' || preg_match($expression, $file))) {
  27                 $result[] = $file;
  28             }
  29         }
  30         @closedir($handle);
  31         asort($result);
  32         return $result;
  33     } else {
  34         return FALSE;
  35     }
  36 }
  37
  38 /**
  39  * Returns options of filtered file names
  40  *
  41  * @param   string  directory to list
  42  * @param   string  regullar expression to match files
  43  * @param   string  currently active choice
  44  * @returns array   sorted file list on success, FALSE on failure
  45  */
  46 function PMA_getFileSelectOptions($dir, $extensions = '', $active = '')
  47 {
  48     $list = PMA_getDirContent($dir, $extensions);
  49     if ($list === FALSE) {
  50         return FALSE;
  51     }
  52     $result = '';
  53     foreach ($list as $key => $val) {
  54         $result .= '<option value="'. htmlspecialchars($val) . '"';
  55         if ($val == $active) {
  56             $result .= ' selected="selected"';
  57         }
  58         $result .= '>' . htmlspecialchars($val) . '</option>' . "\n";
  59     }
  60     return $result;
  61 }
  62
  63 /**
  64  * Get currently supported decompressions.
  65  *
  66  * @returns string | separated list of extensions usable in PMA_getDirContent
  67  */
  68 function PMA_supportedDecompressions()
  69 {
  70     global $cfg;
  71
  72     $compressions = '';
  73
  74     if ($cfg['GZipDump'] && @function_exists('gzopen')) {
  75         if (!empty($compressions)) {
  76             $compressions .= '|';
  77         }
  78         $compressions .= 'gz';
  79     }
  80     if ($cfg['BZipDump'] && @function_exists('bzopen')) {
  81         if (!empty($compressions)) {
  82             $compressions .= '|';
  83         }
  84         $compressions .= 'bz2';
  85     }
  86     if ($cfg['ZipDump'] && @function_exists('gzinflate')) {
  87         if (!empty($compressions)) {
  88             $compressions .= '|';
  89         }
  90         $compressions .= 'zip';
  91     }
  92
  93     return $compressions;
  94 }