1: <?php
  2: /**
  3:  * Copyright 2002-2014 Horde LLC (http://www.horde.org/)
  4:  *
  5:  * See the enclosed file COPYING for license information (GPL). If you
  6:  * did not receive this file, see http://www.horde.org/licenses/gpl.
  7:  *
  8:  * @category  Horde
  9:  * @copyright 2002-2014 Horde LLC
 10:  * @license   http://www.horde.org/licenses/gpl GPL
 11:  * @package   IMP
 12:  */
 13: 
 14: /**
 15:  * Handler to render the contents of ZIP files in HTML format, allowing
 16:  * downloading of extractable files.
 17:  *
 18:  * @author    Mike Cochrane <mike@graftonhall.co.nz>
 19:  * @author    Michael Slusarz <slusarz@horde.org>
 20:  * @category  Horde
 21:  * @copyright 2002-2014 Horde LLC
 22:  * @license   http://www.horde.org/licenses/gpl GPL
 23:  * @package   IMP
 24:  */
 25: class IMP_Mime_Viewer_Zip extends Horde_Mime_Viewer_Zip
 26: {
 27:     /**
 28:      * Return the full rendered version of the Horde_Mime_Part object.
 29:      *
 30:      * URL parameters used by this function:
 31:      *   - zip_attachment: (integer) The ZIP attachment to download.
 32:      *
 33:      * @return array  See parent::render().
 34:      * @throws Horde_Exception
 35:      */
 36:     protected function _render()
 37:     {
 38:         $vars = $GLOBALS['injector']->getInstance('Horde_Variables');
 39: 
 40:         if (!isset($vars->zip_attachment)) {
 41:             return array();
 42:         }
 43: 
 44:         /* Send the requested file. Its position in the zip archive is located
 45:          * in 'zip_attachment'. */
 46:         $data = $this->_mimepart->getContents();
 47:         $fileKey = $vars->zip_attachment - 1;
 48: 
 49:         if (!($zip = $this->getConfigParam('zip'))) {
 50:             $zip = Horde_Compress::factory('Zip');
 51:             $this->setConfigParam('zip', $zip);
 52:         }
 53:         $zipInfo = $zip->decompress($data, array(
 54:             'action' => Horde_Compress_Zip::ZIP_LIST
 55:         ));
 56: 
 57:         /* Verify that the requested file exists. */
 58:         if (isset($zipInfo[$fileKey])) {
 59:             $text = $zip->decompress($data, array(
 60:                 'action' => Horde_Compress_Zip::ZIP_DATA,
 61:                 'info' => $zipInfo,
 62:                 'key' => $fileKey
 63:             ));
 64:             if (!empty($text)) {
 65:                 return array(
 66:                     $this->_mimepart->getMimeId() => array(
 67:                         'data' => $text,
 68:                         'name' => basename($zipInfo[$fileKey]['name']),
 69:                         'type' => 'application/octet-stream'
 70:                     )
 71:                 );
 72:             }
 73:         }
 74: 
 75:         // TODO: Error reporting
 76:         return array();
 77:     }
 78: 
 79:     /**
 80:      * Return the rendered information about the Horde_Mime_Part object.
 81:      *
 82:      * @return array  See Horde_Mime_Viewer_Driver::render().
 83:      */
 84:     protected function _renderInfo()
 85:     {
 86:         $this->_callback = array($this, '_IMPcallback');
 87:         return parent::_renderInfo();
 88:     }
 89: 
 90:     /**
 91:      * The function to use as a callback to _renderInfo().
 92:      *
 93:      * @param integer $key  The position of the file in the zip archive.
 94:      * @param array $val    The information array for the archived file.
 95:      *
 96:      * @return string  The content-type of the output.
 97:      */
 98:     protected function _IMPcallback($key, $val)
 99:     {
100:         $name = preg_replace('/(&nbsp;)+$/', '', $val['name']);
101: 
102:         if (!empty($val['size']) && (strstr($val['attr'], 'D') === false) &&
103:             ((($val['method'] == 0x8) && Horde_Util::extensionExists('zlib')) ||
104:              ($val['method'] == 0x0))) {
105:             $mime_part = clone $this->_mimepart;
106:             $mime_part->setName(basename($name));
107:             $val['name'] = str_replace($name, $this->getConfigParam('imp_contents')->linkView($mime_part, 'download_render', $name, array('jstext' => sprintf(_("View %s"), str_replace('&nbsp;', ' ', $name)), 'class' => 'fixed', 'params' => array('zip_attachment' => urlencode($key) + 1))), $val['name']);
108:         }
109: 
110:         return $val;
111:     }
112: 
113: }
114: