ILIAS  Release_4_4_x_branch Revision 61816
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class.ilObjectFeedWriter.php
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1 <?php
2 
3 /* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */
4 
5 include_once("./Services/News/classes/class.ilNewsItem.php");
6 include_once("./Services/Feeds/classes/class.ilFeedItem.php");
7 include_once("./Services/Feeds/classes/class.ilFeedWriter.php");
8 
19 class ilObjectFeedWriter extends ilFeedWriter
20 {
21  function ilObjectFeedWriter($a_ref_id, $a_userid = false, $a_purpose = false)
22  {
23  global $ilSetting, $lng;
24 
25  parent::ilFeedWriter();
26 
27  if ($a_ref_id <= 0)
28  {
29  return;
30  }
31 
32  include_once("./Services/Block/classes/class.ilBlockSetting.php");
33  $news_set = new ilSetting("news");
34  if (!$news_set->get("enable_rss_for_internal"))
35  {
36  return;
37  }
38  $obj_id = ilObject::_lookupObjId($a_ref_id);
39  $obj_type = ilObject::_lookupType($obj_id);
40  $obj_title = ilObject::_lookupTitle($obj_id);
41 
42  if (!ilBlockSetting::_lookup("news", "public_feed", 0, $obj_id))
43  {
44  return;
45  }
46 
47  // path
48  $loc = $this->getContextPath($a_ref_id);
49 
50  if ($ilSetting->get('short_inst_name') != "")
51  {
52  $this->setChannelTitle($ilSetting->get('short_inst_name')." - ".
53  $this->prepareStr($loc." ".$obj_title));
54  }
55  else
56  {
57  $this->setChannelTitle("ILIAS"." - ".
58  $this->prepareStr($loc." ".$obj_title.($a_purpose ? " - ".$a_purpose : "")));
59  }
60  $this->setChannelAbout(ILIAS_HTTP_PATH);
61  $this->setChannelLink(ILIAS_HTTP_PATH);
62  // not nice, to do: general solution
63  if ($obj_type == "mcst")
64  {
65  include_once("./Modules/MediaCast/classes/class.ilObjMediaCastAccess.php");
66 
67  if (!ilObjMediaCastAccess::_lookupOnline($obj_id))
68  {
69  $lng->loadLanguageModule("mcst");
70 
71  $feed_item = new ilFeedItem();
72  $feed_item->setTitle($lng->txt("mcst_media_cast_not_online"));
73  $feed_item->setDescription($lng->txt("mcst_media_cast_not_online_text"));
74  $feed_item->setLink(ILIAS_HTTP_PATH."/goto.php?client_id=".CLIENT_ID.
75  "&amp;target=".$item["context_obj_type"]);
76  $this->addItem($feed_item);
77  return;
78  }
79  }
80 
81 
82  $rss_period = ilNewsItem::_lookupRSSPeriod();
83 
84  ilNewsItem::setPrivateFeedId($a_userid);
85  $news_item = new ilNewsItem();
86  $news_item->setContextObjId($obj_id);
87  $news_item->setContextObjType($obj_type);
88  $items = $news_item->getNewsForRefId($a_ref_id, true, false, $rss_period, true);
89 
90  if ($a_purpose) {
91  include_once("./Services/MediaObjects/classes/class.ilMediaItem.php");
92  }
93 
94  $i = 0;
95  foreach($items as $item)
96  {
97  $i++;
98 
99  if ($a_purpose != false && $obj_type == "mcst")
100  {
101  $mob = ilMediaItem::_getMediaItemsOfMObId($item[mob_id], $a_purpose);
102 
103  if ($mob == false)
104  {
105  continue;
106  }
107 
108  }
109 
110  $obj_title = ilObject::_lookupTitle($item["context_obj_id"]);
111 
112  $feed_item = new ilFeedItem();
113 
114  $title = ilNewsItem::determineNewsTitle
115  ($item["context_obj_type"], $item["title"], $item["content_is_lang_var"],
116  $item["agg_ref_id"], $item["aggregation"]);
117 
118  $loc = "";
119 
120  if ($news_set->get("rss_title_format") == "news_obj")
121  {
122  $sep = (trim($this->prepareStr($loc)) == "")
123  ? ""
124  : " ";
125  $feed_item->setTitle($this->prepareStr($title)." (".$this->prepareStr($loc).$sep.$this->prepareStr($obj_title).
126  ")");
127  }
128  else
129  {
130  $feed_item->setTitle($this->prepareStr($loc)." ".$this->prepareStr($obj_title).
131  ": ".$this->prepareStr($title));
132  }
133  $feed_item->setDescription($this->prepareStr(nl2br(
134  ilNewsItem::determineNewsContent($item["context_obj_type"], $item["content"], $item["content_text_is_lang_var"]))));
135 
136  // lm hack, not nice
137  if (in_array($item["context_obj_type"], array("dbk", "lm")) && $item["context_sub_obj_type"] == "pg"
138  && $item["context_sub_obj_id"] > 0)
139  {
140  $feed_item->setLink(ILIAS_HTTP_PATH."/goto.php?client_id=".CLIENT_ID.
141  "&amp;target=pg_".$item["context_sub_obj_id"]."_".$item["ref_id"]);
142  }
143  else if ($item["context_obj_type"] == "wiki" && $item["context_sub_obj_type"] == "wpg"
144  && $item["context_sub_obj_id"] > 0)
145  {
146  include_once("./Modules/Wiki/classes/class.ilWikiPage.php");
147  $wptitle = ilWikiPage::lookupTitle($item["context_sub_obj_id"]);
148  $feed_item->setLink(ILIAS_HTTP_PATH."/goto.php?client_id=".CLIENT_ID.
149  "&amp;target=".$item["context_obj_type"]."_".$item["ref_id"]."_".$wptitle);
150  }
151  else if (in_array($item["context_obj_type"], array("frm")) && $item["context_sub_obj_type"] == "pos"
152  && $item["context_sub_obj_id"] > 0)
153  {
154  // frm hack, not nice
155  include_once("./Modules/Forum/classes/class.ilObjForumAccess.php");
156  $thread_id = ilObjForumAccess::_getThreadForPosting($item["context_sub_obj_id"]);
157  if ($thread_id > 0)
158  {
159  $feed_item->setLink(ILIAS_HTTP_PATH."/goto.php?client_id=".CLIENT_ID.
160  "&amp;target=".$item["context_obj_type"]."_".$item["ref_id"]."_".$thread_id."_".$item["context_sub_obj_id"]);
161  }
162  else
163  {
164  $feed_item->setLink(ILIAS_HTTP_PATH."/goto.php?client_id=".CLIENT_ID.
165  "&amp;target=".$item["context_obj_type"]."_".$item["ref_id"]);
166  }
167  }
168  else
169  {
170  $feed_item->setLink(ILIAS_HTTP_PATH."/goto.php?client_id=".CLIENT_ID.
171  "&amp;target=".$item["context_obj_type"]."_".$item["ref_id"]);
172 //echo "<br>".ILIAS_HTTP_PATH."/goto.php?client_id=".CLIENT_ID.
173 // "&amp;target=".$item["context_obj_type"]."_".$item["ref_id"];
174  }
175 
176  $feed_item->setAbout($feed_item->getLink()."&amp;il_about_feed=".$item["id"]);
177  $feed_item->setDate($item["creation_date"]);
178 
179  // Enclosure
180  if ($item["content_type"] == NEWS_AUDIO &&
181  $item["mob_id"] > 0 && ilObject::_exists($item["mob_id"]))
182  {
183  $go_on = true;
184  if ($obj_type == "mcst")
185  {
186  include_once("./Modules/MediaCast/classes/class.ilObjMediaCastAccess.php");
187 
188  if (!ilObjMediaCastAccess::_lookupPublicFiles($obj_id))
189  {
190  $go_on = false;
191  }
192  }
193 
194  if ($go_on)
195  {
196  include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
197  $url = ilObjMediaObject::_lookupItemPath($item["mob_id"], true, true, $mob["purpose"]);
198  $file = ilObjMediaObject::_lookupItemPath($item["mob_id"], false, false, $mob["purpose"]);
199  if (is_file($file))
200  {
201  $size = filesize($file);
202  }
203  $feed_item->setEnclosureUrl($url);
204  $feed_item->setEnclosureType((isset($mob["format"]))?$mob["format"]:"audio/mpeg");
205  $feed_item->setEnclosureLength($size);
206  }
207  }
208  $this->addItem($feed_item);
209  }
210  }
211 }
212 ?>