boinc/html/user/forum_rss.php

139 lines
3.8 KiB
PHP

<?php
// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
// get a forum (possibly filtered by user) as RSS feed
require_once("../project/project.inc");
require_once("../inc/db.inc");
$forumid = get_int('forumid');
$forum = BoincForum::lookup_id($forumid);
if (!$forum) error_page("no such forum");
if (get_int('setup', true)) {
page_head("$forum->name RSS feed");
echo "
This message board is available as an RSS feed.
Options:
<form action=forum_rss.php>
<input type=hidden name=forumid value=$forumid>
<p>
Include only posts by user ID <input name=userid> (default: all users).
<p>
Include only the <input name=nitems> most recent posts (default: 20).
<p>
<input type=submit value=OK>
";
page_tail();
exit;
}
$userid = get_int('userid', true);
$nitems = get_int('nitems', true);
if(!$nitems || $nitems < "1" || $nitems > "20") {
$nitems = "20";
}
$clause = "forum=$forumid ";
if ($userid) {
$user = BoincUser::lookup_id($userid);
if (!$user) error_page("no such user");
$clause .= " and owner=$userid";
}
class Int {
};
$db = BoincDb::get();
$x = $db->lookup_fields(
"thread",
"Int",
"max(timestamp) as foo",
"$clause and status=0 and hidden=0 and sticky=0"
);
$last_mod_time = $x->foo;
$threads = BoincThread::enum("$clause and status=0 and hidden=0 and sticky=0 order by create_time desc limit $nitems"
);
// Get unix time that last modification was made to the news source
//
$create_date = gmdate('D, d M Y H:i:s', $last_mod_time) . ' GMT';
// Now construct header
//
header ("Expires: " . gmdate('D, d M Y H:i:s', time()+86400) . " GMT");
header ("Last-Modified: " . $create_date);
header ("Content-Type: application/xml");
// Create channel header and open XML content
//
$description = PROJECT.": $forum->description";
if ($user) {
$description .= " (posts by $user->name)";
}
$channel_image = URL_BASE . "rss_image.gif";
$language = "en-us";
echo "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>
<rss version=\"2.0\">
<channel>
<title>".$description."</title>
<link>".URL_BASE."</link>
<description>".$description."</description>
<copyright>".COPYRIGHT_HOLDER."</copyright>
<lastBuildDate>".$create_date."</lastBuildDate>
<language>".$language."</language>
<image>
<url>".$channel_image."</url>
<title>".PROJECT."</title>
<link>".URL_BASE."</link>
</image>
";
// write news items
//
foreach ($threads as $thread) {
$post_date=gmdate('D, d M Y H:i:s',$thread->create_time).' GMT';
$unique_url=URL_BASE."forum_thread.php?id=".$thread->id;
$clause2 = $userid?"and user=$userid":"";
$posts = BoincPost::enum("thread=$thread->id $clause2 order by timestamp limit 1");
$post = $posts[0];
echo "<item>
<title>".strip_tags($thread->title)."</title>
<link>$unique_url</link>
<guid isPermaLink=\"true\">$unique_url</guid>
<description>".substr(strip_tags($post->content),0,255)." . . .</description>
<pubDate>$post_date</pubDate>
</item>
";
}
// Close XML content
//
echo "
</channel>
</rss>
";
?>