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<?php
/**
* The Horde_Mime_Viewer_Tnef class allows MS-TNEF attachments to be
* displayed.
*
* Copyright 2002-2017 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @author Jan Schneider <jan@horde.org>
* @author Michael Slusarz <slusarz@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package Mime_Viewer
*/
class Horde_Mime_Viewer_Tnef extends Horde_Mime_Viewer_Base
{
/**
* This driver's display capabilities.
*
* @var array
*/
protected $_capability = array(
'full' => false,
'info' => false,
'inline' => false,
'raw' => false
);
/**
* Metadata for the current viewer/data.
*
* @var array
*/
protected $_metadata = array(
'compressed' => true,
'embedded' => true,
'forceinline' => true
);
/**
* Constructor.
*
* @param Horde_Mime_Part $mime_part The object with the data to be
* rendered.
* @param array $conf Configuration:
* <pre>
* 'tnef' - (Horde_Compress_Tnef) TNEF object.
* </pre>
*
* @throws InvalidArgumentException
*/
public function __construct(Horde_Mime_Part $part, array $conf = array())
{
parent::__construct($part, $conf);
}
/**
* If this MIME part can contain embedded MIME part(s), and those part(s)
* exist, return a representation of that data.
*
* @return mixed A Horde_Mime_Part object representing the embedded data.
* Returns null if no embedded MIME part(s) exist.
*/
protected function _getEmbeddedMimeParts()
{
/* Get the data from the attachment. */
try {
if (!($tnef = $this->getConfigParam('tnef'))) {
$tnef = Horde_Compress::factory('Tnef');
$this->setConfigParam('tnef', $tnef);
}
$tnefData = $tnef->decompress($this->_mimepart->getContents());
} catch (Horde_Compress_Exception $e) {
$tnefData = array();
}
if (!count($tnefData)) {
return null;
}
$mixed = new Horde_Mime_Part();
$mixed->setType('multipart/mixed');
foreach ($tnefData as $data) {
$temp_part = new Horde_Mime_Part();
$temp_part->setName($data['name']);
$temp_part->setDescription($data['name']);
$temp_part->setContents($data['stream']);
$temp_part->setType($data['type'] . '/' . $data['subtype']);
/* Short-circuit MIME-type guessing for winmail.dat parts;
* we're showing enough entries for them already. */
if (in_array($temp_part->getType(), array('application/octet-stream', 'application/base64'))) {
$temp_part->setType(
Horde_Mime_Magic::filenameToMIME($data['name'])
);
}
/* Set text parts to be displayed inline. */
if ($temp_part->getPrimaryType() === 'text') {
$temp_part->setDisposition('inline');
}
$mixed->addPart($temp_part);
}
return $mixed;
}
}
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