phpmyadmin/libraries/file_listing.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Functions for listing directories
   5  *
   6  * @package PhpMyAdmin
   7  */
   8 if (! defined('PHPMYADMIN')) {
   9     exit;
  10 }
  11
  12 /**
  13  * Returns array of filtered file names
  14  *
  15  * @param string $dir        directory to list
  16  * @param string $expression regular expression to match files
  17  *
  18  * @return array   sorted file list on success, false on failure
  19  */
  20 function PMA_getDirContent($dir, $expression = '')
  21 {
  22     if (file_exists($dir) && $handle = @opendir($dir)) {
  23         $result = array();
  24         if (substr($dir, -1) != '/') {
  25             $dir .= '/';
  26         }
  27         while ($file = @readdir($handle)) {
  28             // for PHP < 5.2.4, is_file() gives a warning when using open_basedir
  29             // and verifying '..' or '.'
  30             if ('.' != $file
  31                 && '..' != $file
  32                 && is_file($dir . $file)
  33                 && ($expression == '' || preg_match($expression, $file))
  34             ) {
  35                 $result[] = $file;
  36             }
  37         }
  38         @closedir($handle);
  39         asort($result);
  40         return $result;
  41     } else {
  42         return false;
  43     }
  44 }
  45
  46 /**
  47  * Returns options of filtered file names
  48  *
  49  * @param string $dir        directory to list
  50  * @param string $extensions regullar expression to match files
  51  * @param string $active     currently active choice
  52  *
  53  * @return array   sorted file list on success, false on failure
  54  */
  55 function PMA_getFileSelectOptions($dir, $extensions = '', $active = '')
  56 {
  57     $list = PMA_getDirContent($dir, $extensions);
  58     if ($list === false) {
  59         return false;
  60     }
  61     $result = '';
  62     foreach ($list as $val) {
  63         $result .= '<option value="'. htmlspecialchars($val) . '"';
  64         if ($val == $active) {
  65             $result .= ' selected="selected"';
  66         }
  67         $result .= '>' . htmlspecialchars($val) . '</option>' . "\n";
  68     }
  69     return $result;
  70 }
  71
  72 /**
  73  * Get currently supported decompressions.
  74  *
  75  * @return string | separated list of extensions usable in PMA_getDirContent
  76  */
  77 function PMA_supportedDecompressions()
  78 {
  79     global $cfg;
  80
  81     $compressions = '';
  82
  83     if ($cfg['GZipDump'] && @function_exists('gzopen')) {
  84         if (!empty($compressions)) {
  85             $compressions .= '|';
  86         }
  87         $compressions .= 'gz';
  88     }
  89     if ($cfg['BZipDump'] && @function_exists('bzopen')) {
  90         if (!empty($compressions)) {
  91             $compressions .= '|';
  92         }
  93         $compressions .= 'bz2';
  94     }
  95     if ($cfg['ZipDump'] && @function_exists('gzinflate')) {
  96         if (!empty($compressions)) {
  97             $compressions .= '|';
  98         }
  99         $compressions .= 'zip';
 100     }
 101
 102     return $compressions;
 103 }