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pma/libraries/file_listing.php 2.55 KB
a1684257   Administrator   first commit
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  <?php
  /* vim: set expandtab sw=4 ts=4 sts=4: */
  /**
   * Functions for listing directories
   *
   * @todo rename to file_listing.lib.php
   * @package PhpMyAdmin
   */
  
  /**
   * Returns array of filtered file names
   *
   * @param string $dir        directory to list
   * @param string $expression regular expression to match files
   * @return array   sorted file list on success, false on failure
   */
  function PMA_getDirContent($dir, $expression = '')
  {
      if (file_exists($dir) && $handle = @opendir($dir)) {
          $result = array();
          if (substr($dir, -1) != '/') {
              $dir .= '/';
          }
          while ($file = @readdir($handle)) {
          // for PHP < 5.2.4, is_file() gives a warning when using open_basedir
          // and verifying '..' or '.'
              if ('.' != $file && '..' != $file && is_file($dir . $file) && ($expression == '' || preg_match($expression, $file))) {
                  $result[] = $file;
              }
          }
          @closedir($handle);
          asort($result);
          return $result;
      } else {
          return false;
      }
  }
  
  /**
   * Returns options of filtered file names
   *
   * @param string $dir        directory to list
   * @param string $extensions regullar expression to match files
   * @param string $active     currently active choice
   * @return array   sorted file list on success, false on failure
   */
  function PMA_getFileSelectOptions($dir, $extensions = '', $active = '')
  {
      $list = PMA_getDirContent($dir, $extensions);
      if ($list === false) {
          return false;
      }
      $result = '';
      foreach ($list as $key => $val) {
          $result .= '<option value="'. htmlspecialchars($val) . '"';
          if ($val == $active) {
              $result .= ' selected="selected"';
          }
          $result .= '>' . htmlspecialchars($val) . '</option>' . "\n";
      }
      return $result;
  }
  
  /**
   * Get currently supported decompressions.
   *
   * @return string | separated list of extensions usable in PMA_getDirContent
   */
  function PMA_supportedDecompressions()
  {
      global $cfg;
  
      $compressions = '';
  
      if ($cfg['GZipDump'] && @function_exists('gzopen')) {
          if (!empty($compressions)) {
              $compressions .= '|';
          }
          $compressions .= 'gz';
      }
      if ($cfg['BZipDump'] && @function_exists('bzopen')) {
          if (!empty($compressions)) {
              $compressions .= '|';
          }
          $compressions .= 'bz2';
      }
      if ($cfg['ZipDump'] && @function_exists('gzinflate')) {
          if (!empty($compressions)) {
              $compressions .= '|';
          }
          $compressions .= 'zip';
      }
  
      return $compressions;
  }