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class.ilFeedUrlInputGUI.php
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1 <?php
2 /*
3  +-----------------------------------------------------------------------------+
4  | ILIAS open source |
5  +-----------------------------------------------------------------------------+
6  | Copyright (c) 1998-2007 ILIAS open source, University of Cologne |
7  | |
8  | This program is free software; you can redistribute it and/or |
9  | modify it under the terms of the GNU General Public License |
10  | as published by the Free Software Foundation; either version 2 |
11  | of the License, or (at your option) any later version. |
12  | |
13  | This program is distributed in the hope that it will be useful, |
14  | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16  | GNU General Public License for more details. |
17  | |
18  | You should have received a copy of the GNU General Public License |
19  | along with this program; if not, write to the Free Software |
20  | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
21  +-----------------------------------------------------------------------------+
22 */
23 
31 class ilFeedUrlInputGUI extends ilTextInputGUI
32 {
33  protected $value;
34  protected $maxlength = 200;
35  protected $size = 40;
36 
43  function __construct($a_title = "", $a_postvar = "")
44  {
45  parent::__construct($a_title, $a_postvar);
46  $this->setType("feedurl");
47  }
48 
54  function checkInput()
55  {
56  global $lng;
57 
58  $lng->loadLanguageModule("feed");
59 
60  $_POST[$this->getPostVar()] =
61  ilUtil::stripSlashes($_POST[$this->getPostVar()]);
62 
63  // remove safari pseudo protocol
64  if (substr($_POST[$this->getPostVar()], 0, 5) == "feed:")
65  {
66  $_POST[$this->getPostVar()] = "http:".
67  substr($_POST[$this->getPostVar()], 5);
68  }
69 
70  // add missing http://
71  if (!is_int(strpos($_POST[$this->getPostVar()], "://")))
72  {
73  $_POST[$this->getPostVar()] = "http://".$_POST[$this->getPostVar()];
74  }
75 
76  // check required
77  if ($this->getRequired() && trim($_POST[$this->getPostVar()]) == "")
78  {
79  $this->setAlert($lng->txt("msg_input_is_required"));
80 
81  return false;
82  }
83 
84  // check feed url
85  $url = $_POST[$this->getPostVar()];
86  include_once("./Services/Feeds/classes/class.ilExternalFeed.php");
87  $check = ilExternalFeed::_checkUrl($url);
88 
89  // try to determine a feed url, if we failed here
90  if ($check !== true)
91  {
92  $url2 = ilExternalFeed::_determineFeedUrl($url);
93  $check2 = ilExternalFeed::_checkUrl($url2);
94 
95  if ($check2 === true)
96  {
97  $_POST[$this->getPostVar()] = $url2;
98  $check = true;
99  }
100  }
101 
102  // if check failed, output error message
103  if ($check !== true)
104  {
105  $check = str_replace("MagpieRSS:", "", $check);
106  $this->setAlert($lng->txt("feed_no_valid_url")."<br />".$check);
107  return false;
108  }
109 
110  return true;
111  }
112 
113 }