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($handle)) {
  28             if (is_file($dir . $file)
  29                 && ($expression == '' || preg_match($expression, $file))
  30             ) {
  31                 $result[] = $file;
  32             }
  33         }
  34         @closedir($handle);
  35         asort($result);
  36         return $result;
  37     } else {
  38         return false;
  39     }
  40 }
  41
  42 /**
  43  * Returns options of filtered file names
  44  *
  45  * @param string $dir        directory to list
  46  * @param string $extensions regullar expression to match files
  47  * @param string $active     currently active choice
  48  *
  49  * @return array   sorted file list on success, false on failure
  50  */
  51 function PMA_getFileSelectOptions($dir, $extensions = '', $active = '')
  52 {
  53     $list = PMA_getDirContent($dir, $extensions);
  54     if ($list === false) {
  55         return false;
  56     }
  57     $result = '';
  58     foreach ($list as $val) {
  59         $result .= '<option value="'. htmlspecialchars($val) . '"';
  60         if ($val == $active) {
  61             $result .= ' selected="selected"';
  62         }
  63         $result .= '>' . htmlspecialchars($val) . '</option>' . "\n";
  64     }
  65     return $result;
  66 }
  67
  68 /**
  69  * Get currently supported decompressions.
  70  *
  71  * @return string | separated list of extensions usable in PMA_getDirContent
  72  */
  73 function PMA_supportedDecompressions()
  74 {
  75     global $cfg;
  76
  77     $compressions = '';
  78
  79     if ($cfg['GZipDump'] && @function_exists('gzopen')) {
  80         if (!empty($compressions)) {
  81             $compressions .= '|';
  82         }
  83         $compressions .= 'gz';
  84     }
  85     if ($cfg['BZipDump'] && @function_exists('bzopen')) {
  86         if (!empty($compressions)) {
  87             $compressions .= '|';
  88         }
  89         $compressions .= 'bz2';
  90     }
  91     if ($cfg['ZipDump'] && @function_exists('gzinflate')) {
  92         if (!empty($compressions)) {
  93             $compressions .= '|';
  94         }
  95         $compressions .= 'zip';
  96     }
  97
  98     return $compressions;
  99 }