1: <?php
  2: /**
  3:  * The IMP_Mime_Viewer_Partial class allows message/partial messages
  4:  * to be displayed (RFC 2046 [5.2.2]).
  5:  *
  6:  * Copyright 2003-2012 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   Michael Slusarz <slusarz@horde.org>
 12:  * @category Horde
 13:  * @license  http://www.horde.org/licenses/gpl GPL
 14:  * @package  IMP
 15:  */
 16: class IMP_Mime_Viewer_Partial extends Horde_Mime_Viewer_Base
 17: {
 18:     /**
 19:      * This driver's display capabilities.
 20:      *
 21:      * @var array
 22:      */
 23:     protected $_capability = array(
 24:         'full' => false,
 25:         'info' => true,
 26:         'inline' => false,
 27:         'raw' => false
 28:     );
 29: 
 30:     /**
 31:      * Metadata for the current viewer/data.
 32:      *
 33:      * @var array
 34:      */
 35:     protected $_metadata = array(
 36:         'compressed' => false,
 37:         'embedded' => true,
 38:         'forceinline' => true
 39:     );
 40: 
 41:     /**
 42:      * Cached data.
 43:      *
 44:      * @var array
 45:      */
 46:     static protected $_statuscache = array();
 47: 
 48:     /**
 49:      * Return the rendered information about the Horde_Mime_Part object.
 50:      *
 51:      * @return array  See parent::render().
 52:      */
 53:     protected function _renderInfo()
 54:     {
 55:         $id = $this->_mimepart->getMimeId();
 56: 
 57:         if (isset(self::$_statuscache[$id])) {
 58:             return array(
 59:                 $id => array(
 60:                     'data' => null,
 61:                     'status' => self::$_statuscache[$id],
 62:                     'type' => 'text/plain; charset=' . $this->getConfigParam('charset')
 63:                 )
 64:             );
 65:         } else {
 66:             return array($id => null);
 67:         }
 68:     }
 69: 
 70:     /**
 71:      * If this MIME part can contain embedded MIME part(s), and those part(s)
 72:      * exist, return a representation of that data.
 73:      *
 74:      * @return mixed  A Horde_Mime_Part object representing the embedded data.
 75:      *                Returns null if no embedded MIME part(s) exist.
 76:      */
 77:     protected function _getEmbeddedMimeParts()
 78:     {
 79:         $id = $this->_mimepart->getContentTypeParameter('id');
 80:         $number = $this->_mimepart->getContentTypeParameter('number');
 81:         $total = $this->_mimepart->getContentTypeParameter('total');
 82: 
 83:         if (is_null($id) || is_null($number) || is_null($total)) {
 84:             return null;
 85:         }
 86: 
 87:         /* Perform the search to find the other parts of the message. */
 88:         $query = new Horde_Imap_Client_Search_Query();
 89:         $query->headerText('Content-Type', $id);
 90:         $indices = $this->getConfigParam('imp_contents')->getMailbox()->runSearchQuery($query);
 91: 
 92:         /* If not able to find the other parts of the message, prepare a
 93:          * status message. */
 94:         $msg_count = count($indices);
 95:         if ($msg_count != $total) {
 96:             $status = new IMP_Mime_Status(sprintf(_("Cannot display message - found only %s of %s parts of this message in the current mailbox."), $msg_count, $total));
 97:             $status->action(IMP_Mime_Status::ERROR);
 98:             self::$_statuscache[$this->_mimepart->getMimeId()] = $status;
 99:             return null;
100:         }
101: 
102:         /* Get the contents of each of the parts. */
103:         $parts = array();
104:         foreach ($indices as $ob) {
105:             foreach ($ob->uids as $val) {
106:                 /* No need to fetch the current part again. */
107:                 if ($val == $number) {
108:                     $parts[$number] = $this->_mimepart->getContents();
109:                 } else {
110:                     $ic = $GLOBALS['injector']->getInstance('IMP_Factory_Contents')->create($ob->mbox->getIndicesOb($val));
111:                     $parts[$ic->getMIMEMessage()->getContentTypeParameter('number')] = $ic->getBody();
112:                 }
113:             }
114:         }
115: 
116:         /* Sort the parts in numerical order. */
117:         ksort($parts, SORT_NUMERIC);
118: 
119:         /* Combine the parts. */
120:         $mime_part = Horde_Mime_Part::parseMessage(implode('', $parts), array('forcemime' => true));
121: 
122:         return ($mime_part === false)
123:             ? null
124:             : $mime_part;
125:     }
126: 
127: }
128: