libraries/file_listing.php

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