tedkulp / cmsmadesimple-2-0 fork watch download tarball
public
Description: Git mirror of the CMS Made Simple 2.0 rewrite
Homepage: http://cmsmadesimple.org
Clone URL: git://github.com/tedkulp/cmsmadesimple-2-0.git
cmsmadesimple-2-0 / lib / classes / class.cms_preview.php
100644 100 lines (89 sloc) 2.54 kb
raw blame history 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

<?php // -*- mode:php; tab-width:4; indent-tabs-mode:t; c-basic-offset:4; -*-
#CMS - CMS Made Simple
#(c)2004-2008 by Ted Kulp (ted@cmsmadesimple.org)
#This project's homepage is: http://cmsmadesimple.org
#
#This program is free software; you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation; either version 2 of the License, or
#(at your option) any later version.
#
#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.
#You should have received a copy of the GNU General Public License
#along with this program; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#$Id$
 
/**
 * Static methods for handling previews.
 *
 * @author Ted Kulp
 * @since 2.0
 * @version $Revision$
 * @modifiedby $LastChangedBy$
 * @lastmodified $Date$
 * @license GPL
 **/
class CmsPreview extends CmsObject
{
  function __construct()
  {
    parent::__construct();
  }
  
  public static function has_preview()
  {
    return (isset($_GET["tmpfile"]) && $_GET["tmpfile"] != "");
  }
  
  public static function get_preview()
  {
    if (CmsPreview::has_preview())
    {
      $fname = CmsPreview::clean_filename($_GET["tmpfile"]);
 
      if (is_writable($config["previews_path"]))
      {
        $fname = $config["previews_path"] . DIRECTORY_SEPARATOR . $fname;
      }
      else
      {
        $fname = TMP_CACHE_LOCATION . DIRECTORY_SEPARATOR . $fname;
      }
      $handle = fopen($fname, "r");
      $data = unserialize(fread($handle, filesize($fname)));
      fclose($handle);
    
      return $data;
    }
 
    return null;
  }
  
  public static function clear_preview()
  {
    $config = cms_config();
 
    //If we're in a preview, remove the file
    if (CmsPreview::has_preview())
    {
      $fname = CmsPreview::clean_filename($_GET["tmpfile"]);
 
      if (is_writable($config["previews_path"]))
      {
        $fname = $config["previews_path"] . DIRECTORY_SEPARATOR . $fname;
      }
      else
      {
        $fname = TMP_CACHE_LOCATION . DIRECTORY_SEPARATOR . $fname;
      }
      unlink($fname);
    }
  }
  
  public static function clean_filename($fname)
  {
//    $fname = str_replace('.', '', $fname);
    $fname = str_replace("\\", '', $fname);
    $fname = str_replace('/', '', $fname);
    $fname = str_replace(DIRECTORY_SEPARATOR, '', $fname);
    $fname = basename($fname);
    return $fname;
  }
}
 
# vim:ts=4 sw=4 noet
?>