1: <?php
  2: /**
  3:  * The IMP_Mime_Viewer_Zip class renders out the contents of ZIP files
  4:  * in HTML format and allows downloading of extractable files.
  5:  *
  6:  * Copyright 2002-2012 Horde LLC (http://www.horde.org/)
  7:  *
  8:  * See the enclosed file COPYING for license information (GPL). If you
  9:  * did not receive this file, see http://www.horde.org/licenses/gpl.
 10:  *
 11:  * @author   Mike Cochrane <mike@graftonhall.co.nz>
 12:  * @author   Michael Slusarz <slusarz@horde.org>
 13:  * @category Horde
 14:  * @license  http://www.horde.org/licenses/gpl GPL
 15:  * @package  IMP
 16:  */
 17: class IMP_Mime_Viewer_Zip extends Horde_Mime_Viewer_Zip
 18: {
 19:     /**
 20:      * Return the full rendered version of the Horde_Mime_Part object.
 21:      *
 22:      * URL parameters used by this function:
 23:      * <pre>
 24:      * 'zip_attachment' - (integer) The ZIP attachment to download.
 25:      * </pre>
 26:      *
 27:      * @return array  See parent::render().
 28:      * @throws Horde_Exception
 29:      */
 30:     protected function _render()
 31:     {
 32:         if (!($zip_atc = Horde_Util::getFormData('zip_attachment'))) {
 33:             return array();
 34:         }
 35: 
 36:         /* Send the requested file. Its position in the zip archive is located
 37:          * in 'zip_attachment'. */
 38:         $data = $this->_mimepart->getContents();
 39:         $fileKey = $zip_atc - 1;
 40: 
 41:         if (!($zip = $this->getConfigParam('zip'))) {
 42:             $zip = Horde_Compress::factory('Zip');
 43:             $this->setConfigParam('zip', $zip);
 44:         }
 45:         $zipInfo = $zip->decompress($data, array(
 46:             'action' => Horde_Compress_Zip::ZIP_LIST
 47:         ));
 48: 
 49:         /* Verify that the requested file exists. */
 50:         if (isset($zipInfo[$fileKey])) {
 51:             $text = $zip->decompress($data, array(
 52:                 'action' => Horde_Compress_Zip::ZIP_DATA,
 53:                 'info' => $zipInfo,
 54:                 'key' => $fileKey
 55:             ));
 56:             if (!empty($text)) {
 57:                 return array(
 58:                     $this->_mimepart->getMimeId() => array(
 59:                         'data' => $text,
 60:                         'name' => basename($zipInfo[$fileKey]['name']),
 61:                         'type' => 'application/octet-stream'
 62:                     )
 63:                 );
 64:             }
 65:         }
 66: 
 67:         // TODO: Error reporting
 68:         return array();
 69:     }
 70: 
 71:     /**
 72:      * Return the rendered information about the Horde_Mime_Part object.
 73:      *
 74:      * @return array  See Horde_Mime_Viewer_Driver::render().
 75:      */
 76:     protected function _renderInfo()
 77:     {
 78:         $this->_callback = array($this, '_IMPcallback');
 79:         return parent::_renderInfo();
 80:     }
 81: 
 82:     /**
 83:      * The function to use as a callback to _renderInfo().
 84:      *
 85:      * @param integer $key  The position of the file in the zip archive.
 86:      * @param array $val    The information array for the archived file.
 87:      *
 88:      * @return string  The content-type of the output.
 89:      */
 90:     protected function _IMPcallback($key, $val)
 91:     {
 92:         $name = preg_replace('/(&nbsp;)+$/', '', $val['name']);
 93: 
 94:         if (!empty($val['size']) && (strstr($val['attr'], 'D') === false) &&
 95:             ((($val['method'] == 0x8) && Horde_Util::extensionExists('zlib')) ||
 96:              ($val['method'] == 0x0))) {
 97:             $mime_part = clone $this->_mimepart;
 98:             $mime_part->setName(basename($name));
 99:             $val['name'] = str_replace($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']);
100:         }
101: 
102:         return $val;
103:     }
104: 
105: }
106: