1: <?php
 2: /**
 3:  * The Horde_Mime_Viewer_Rpm class renders out lists of files in RPM
 4:  * packages by using the rpm tool to query the package.
 5:  *
 6:  * Copyright 1999-2012 Horde LLC (http://www.horde.org/)
 7:  *
 8:  * See the enclosed file COPYING for license information (LGPL). If you
 9:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
10:  *
11:  * @author   Anil Madhavapeddy <anil@recoil.org>
12:  * @category Horde
13:  * @license  http://www.horde.org/licenses/lgpl21 LGPL 2.1
14:  * @package  Mime_Viewer
15:  */
16: class Horde_Mime_Viewer_Rpm 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' => true,
37:         'embedded' => false,
38:         'forceinline' => false
39:     );
40: 
41:    /**
42:      * Constructor.
43:      *
44:      * @param Horde_Mime_Part $mime_part  The object with the data to be
45:      *                                    rendered.
46:      * @param array $conf                 Configuration:
47:      * <pre>
48:      * 'location' - (string) The location of the rpm binary [REQUIRED].
49:      * 'monospace' - (string) A class to use to display monospace text inline.
50:      *               DEFAULT: Uses style="font-family:monospace"
51:      * </pre>
52:      *
53:      * @throws InvalidArgumentException
54:      */
55:     public function __construct(Horde_Mime_Part $part, array $conf = array())
56:     {
57:         $this->_required = array_merge($this->_required, array(
58:             'location'
59:         ));
60: 
61:         parent::__construct($part, $conf);
62:     }
63: 
64:     /**
65:      * Return the rendered information about the Horde_Mime_Part object.
66:      *
67:      * @return array  See parent::render().
68:      */
69:     protected function _renderInfo()
70:     {
71:         /* Check to make sure the viewer program exists. */
72:         if (!($location = $this->getConfigParam('location')) ||
73:             !file_exists($location)) {
74:             return array();
75:         }
76: 
77:         $data = '';
78: 
79:         $tmp_rpm = $this->_getTempFile();
80:         file_put_contents($tmp_rpm, $this->_mimepart->getContents());
81: 
82:         $fh = popen($location . ' -qip ' . $tmp_rpm . ' 2>&1', 'r');
83:         while (($rc = fgets($fh, 8192))) {
84:             $data .= $rc;
85:         }
86:         pclose($fh);
87: 
88:         $monospace = $this->getConfigParam('monospace');
89: 
90:         return $this->_renderReturn(
91:             '<span ' .
92:             ($monospace ? 'class="' . $monospace . '">' : 'style="font-family:monospace">') .
93:             htmlspecialchars($data) . '</span>',
94:             'text/html; charset=UTF-8'
95:         );
96:     }
97: 
98: }
99: