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source: branches/rsr.v5.1.dev/web/punbb/extern.php @ 8

Last change on this file since 8 was 3, checked in by dj3c1t, 13 years ago
passage a Fluxbb 1.4.7
File size: 20.8 KB

Rev	Line
[1]	1	<?php
	2
[3]	3	/**
	4	* Copyright (C) 2008-2011 FluxBB
	5	* based on code by Rickard Andersson copyright (C) 2002-2008 PunBB
	6	* License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher
	7	*/
[1]	8
[3]	9	/*-----------------------------------------------------------------------------
[1]	10
[3]	11	INSTRUCTIONS
[1]	12
[3]	13	This script is used to include information about your board from
	14	pages outside the forums and to syndicate news about recent
	15	discussions via RSS/Atom/XML. The script can display a list of
	16	recent discussions, a list of active users or a collection of
	17	general board statistics. The script can be called directly via
	18	an URL, from a PHP include command or through the use of Server
	19	Side Includes (SSI).
[1]	20
[3]	21	The scripts behaviour is controlled via variables supplied in the
	22	URL to the script. The different variables are: action (what to
	23	do), show (how many items to display), fid (the ID or IDs of
	24	the forum(s) to poll for topics), nfid (the ID or IDs of forums
	25	that should be excluded), tid (the ID of the topic from which to
	26	display posts) and type (output as HTML or RSS). The only
	27	mandatory variable is action. Possible/default values are:
[1]	28
[3]	29	action: feed - show most recent topics/posts (HTML or RSS)
	30	online - show users online (HTML)
	31	online_full - as above, but includes a full list (HTML)
	32	stats - show board statistics (HTML)
[1]	33
[3]	34	type: rss - output as RSS 2.0
	35	atom - output as Atom 1.0
	36	xml - output as XML
	37	html - output as HTML (<li>'s)
[1]	38
[3]	39	fid: One or more forum IDs (comma-separated). If ignored,
	40	topics from all readable forums will be pulled.
[1]	41
[3]	42	nfid: One or more forum IDs (comma-separated) that are to be
	43	excluded. E.g. the ID of a a test forum.
[1]	44
[3]	45	tid: A topic ID from which to show posts. If a tid is supplied,
	46	fid and nfid are ignored.
[1]	47
[3]	48	show: Any integer value between 1 and 50. The default is 15.
[1]	49
[3]	50	order: last_post - show topics ordered by when they were last
	51	posted in, giving information about the reply.
	52	posted - show topics ordered by when they were first
	53	posted, giving information about the original post.
[1]	54
[3]	55	-----------------------------------------------------------------------------*/
[1]	56
[3]	57	define('PUN_QUIET_VISIT', 1);
[1]	58
[3]	59	if (!defined('PUN_ROOT'))
	60	define('PUN_ROOT', dirname(__FILE__).'/');
	61	require PUN_ROOT.'include/common.php';
[1]	62
[3]	63	// The length at which topic subjects will be truncated (for HTML output)
	64	if (!defined('FORUM_EXTERN_MAX_SUBJECT_LENGTH'))
	65	define('FORUM_EXTERN_MAX_SUBJECT_LENGTH', 30);
[1]	66
[3]	67	// If we're a guest and we've sent a username/pass, we can try to authenticate using those details
	68	if ($pun_user['is_guest'] && isset($_SERVER['PHP_AUTH_USER']))
	69	authenticate_user($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']);
[1]	70
[3]	71	if ($pun_user['g_read_board'] == '0')
	72	{
	73	http_authenticate_user();
	74	exit($lang_common['No view']);
	75	}
[1]	76
[3]	77	$action = isset($_GET['action']) ? strtolower($_GET['action']) : 'feed';
[1]	78
[3]	79	// Handle a couple old formats, from FluxBB 1.2
	80	switch ($action)
	81	{
	82	case 'active':
	83	$action = 'feed';
	84	$_GET['order'] = 'last_post';
	85	break;
[1]	86
[3]	87	case 'new':
	88	$action = 'feed';
	89	$_GET['order'] = 'posted';
	90	break;
	91	}
[1]	92
[3]	93	//
	94	// Sends the proper headers for Basic HTTP Authentication
	95	//
	96	function http_authenticate_user()
	97	{
	98	global $pun_config, $pun_user;
[1]	99
[3]	100	if (!$pun_user['is_guest'])
	101	return;
[1]	102
[3]	103	header('WWW-Authenticate: Basic realm="'.$pun_config['o_board_title'].' External Syndication"');
	104	header('HTTP/1.0 401 Unauthorized');
	105	}
[1]	106
	107
[3]	108	//
	109	// Output $feed as RSS 2.0
	110	//
	111	function output_rss($feed)
	112	{
	113	global $lang_common, $pun_config;
[1]	114
[3]	115	// Send XML/no cache headers
	116	header('Content-Type: application/xml; charset=utf-8');
	117	header('Expires: '.gmdate('D, d M Y H:i:s').' GMT');
	118	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
	119	header('Pragma: public');
[1]	120
[3]	121	echo '<?xml version="1.0" encoding="utf-8"?>'."\n";
	122	echo '<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">'."\n";
	123	echo "\t".'<channel>'."\n";
	124	echo "\t\t".'<atom:link href="'.pun_htmlspecialchars(get_current_url()).'" rel="self" type="application/rss+xml" />'."\n";
	125	echo "\t\t".'<title><![CDATA['.escape_cdata($feed['title']).']]></title>'."\n";
	126	echo "\t\t".'<link>'.pun_htmlspecialchars($feed['link']).'</link>'."\n";
	127	echo "\t\t".'<description><![CDATA['.escape_cdata($feed['description']).']]></description>'."\n";
	128	echo "\t\t".'<lastBuildDate>'.gmdate('r', count($feed['items']) ? $feed['items'][0]['pubdate'] : time()).'</lastBuildDate>'."\n";
[1]	129
[3]	130	if ($pun_config['o_show_version'] == '1')
	131	echo "\t\t".'<generator>FluxBB '.$pun_config['o_cur_version'].'</generator>'."\n";
	132	else
	133	echo "\t\t".'<generator>FluxBB</generator>'."\n";
[1]	134
[3]	135	foreach ($feed['items'] as $item)
	136	{
	137	echo "\t\t".'<item>'."\n";
	138	echo "\t\t\t".'<title><![CDATA['.escape_cdata($item['title']).']]></title>'."\n";
	139	echo "\t\t\t".'<link>'.pun_htmlspecialchars($item['link']).'</link>'."\n";
	140	echo "\t\t\t".'<description><![CDATA['.escape_cdata($item['description']).']]></description>'."\n";
	141	echo "\t\t\t".'<author><![CDATA['.(isset($item['author']['email']) ? escape_cdata($item['author']['email']) : 'dummy@example.com').' ('.escape_cdata($item['author']['name']).')]]></author>'."\n";
	142	echo "\t\t\t".'<pubDate>'.gmdate('r', $item['pubdate']).'</pubDate>'."\n";
	143	echo "\t\t\t".'<guid>'.pun_htmlspecialchars($item['link']).'</guid>'."\n";
[1]	144
[3]	145	echo "\t\t".'</item>'."\n";
	146	}
[1]	147
[3]	148	echo "\t".'</channel>'."\n";
	149	echo '</rss>'."\n";
	150	}
[1]	151
	152
[3]	153	//
	154	// Output $feed as Atom 1.0
	155	//
	156	function output_atom($feed)
	157	{
	158	global $lang_common, $pun_config;
[1]	159
[3]	160	// Send XML/no cache headers
	161	header('Content-Type: application/atom+xml; charset=utf-8');
	162	header('Expires: '.gmdate('D, d M Y H:i:s').' GMT');
	163	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
	164	header('Pragma: public');
[1]	165
[3]	166	echo '<?xml version="1.0" encoding="utf-8"?>'."\n";
	167	echo '<feed xmlns="http://www.w3.org/2005/Atom">'."\n";
[1]	168
[3]	169	echo "\t".'<title type="html"><![CDATA['.escape_cdata($feed['title']).']]></title>'."\n";
	170	echo "\t".'<link rel="self" href="'.pun_htmlspecialchars(get_current_url()).'"/>'."\n";
	171	echo "\t".'<link href="'.pun_htmlspecialchars($feed['link']).'"/>'."\n";
	172	echo "\t".'<updated>'.gmdate('Y-m-d\TH:i:s\Z', count($feed['items']) ? $feed['items'][0]['pubdate'] : time()).'</updated>'."\n";
[1]	173
[3]	174	if ($pun_config['o_show_version'] == '1')
	175	echo "\t".'<generator version="'.$pun_config['o_cur_version'].'">FluxBB</generator>'."\n";
	176	else
	177	echo "\t".'<generator>FluxBB</generator>'."\n";
[1]	178
[3]	179	echo "\t".'<id>'.pun_htmlspecialchars($feed['link']).'</id>'."\n";
[1]	180
[3]	181	$content_tag = ($feed['type'] == 'posts') ? 'content' : 'summary';
[1]	182
[3]	183	foreach ($feed['items'] as $item)
	184	{
	185	echo "\t".'<entry>'."\n";
	186	echo "\t\t".'<title type="html"><![CDATA['.escape_cdata($item['title']).']]></title>'."\n";
	187	echo "\t\t".'<link rel="alternate" href="'.pun_htmlspecialchars($item['link']).'"/>'."\n";
	188	echo "\t\t".'<'.$content_tag.' type="html"><![CDATA['.escape_cdata($item['description']).']]></'.$content_tag.'>'."\n";
	189	echo "\t\t".'<author>'."\n";
	190	echo "\t\t\t".'<name><![CDATA['.escape_cdata($item['author']['name']).']]></name>'."\n";
[1]	191
[3]	192	if (isset($item['author']['email']))
	193	echo "\t\t\t".'<email><![CDATA['.escape_cdata($item['author']['email']).']]></email>'."\n";
[1]	194
[3]	195	if (isset($item['author']['uri']))
	196	echo "\t\t\t".'<uri>'.pun_htmlspecialchars($item['author']['uri']).'</uri>'."\n";
[1]	197
[3]	198	echo "\t\t".'</author>'."\n";
	199	echo "\t\t".'<updated>'.gmdate('Y-m-d\TH:i:s\Z', $item['pubdate']).'</updated>'."\n";
[1]	200
[3]	201	echo "\t\t".'<id>'.pun_htmlspecialchars($item['link']).'</id>'."\n";
	202	echo "\t".'</entry>'."\n";
	203	}
[1]	204
[3]	205	echo '</feed>'."\n";
[1]	206	}
	207
	208
[3]	209	//
	210	// Output $feed as XML
	211	//
	212	function output_xml($feed)
	213	{
	214	global $lang_common, $pun_config;
[1]	215
[3]	216	// Send XML/no cache headers
	217	header('Content-Type: application/xml; charset=utf-8');
	218	header('Expires: '.gmdate('D, d M Y H:i:s').' GMT');
	219	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
	220	header('Pragma: public');
[1]	221
[3]	222	echo '<?xml version="1.0" encoding="utf-8"?>'."\n";
	223	echo '<source>'."\n";
	224	echo "\t".'<url>'.pun_htmlspecialchars($feed['link']).'</url>'."\n";
[1]	225
[3]	226	$forum_tag = ($feed['type'] == 'posts') ? 'post' : 'topic';
[1]	227
[3]	228	foreach ($feed['items'] as $item)
	229	{
	230	echo "\t".'<'.$forum_tag.' id="'.$item['id'].'">'."\n";
	231
	232	echo "\t\t".'<title><![CDATA['.escape_cdata($item['title']).']]></title>'."\n";
	233	echo "\t\t".'<link>'.pun_htmlspecialchars($item['link']).'</link>'."\n";
	234	echo "\t\t".'<content><![CDATA['.escape_cdata($item['description']).']]></content>'."\n";
	235	echo "\t\t".'<author>'."\n";
	236	echo "\t\t\t".'<name><![CDATA['.escape_cdata($item['author']['name']).']]></name>'."\n";
	237
	238	if (isset($item['author']['email']))
	239	echo "\t\t\t".'<email><![CDATA['.escape_cdata($item['author']['email']).']]></email>'."\n";
	240
	241	if (isset($item['author']['uri']))
	242	echo "\t\t\t".'<uri>'.pun_htmlspecialchars($item['author']['uri']).'</uri>'."\n";
	243
	244	echo "\t\t".'</author>'."\n";
	245	echo "\t\t".'<posted>'.gmdate('r', $item['pubdate']).'</posted>'."\n";
	246
	247	echo "\t".'</'.$forum_tag.'>'."\n";
	248	}
	249
	250	echo '</source>'."\n";
[1]	251	}
	252
	253
	254	//
[3]	255	// Output $feed as HTML (using <li> tags)
[1]	256	//
[3]	257	function output_html($feed)
[1]	258	{
	259
[3]	260	// Send the Content-type header in case the web server is setup to send something else
	261	header('Content-type: text/html; charset=utf-8');
	262	header('Expires: '.gmdate('D, d M Y H:i:s').' GMT');
	263	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
	264	header('Pragma: public');
	265
	266	foreach ($feed['items'] as $item)
[1]	267	{
[3]	268	if (utf8_strlen($item['title']) > FORUM_EXTERN_MAX_SUBJECT_LENGTH)
	269	$subject_truncated = pun_htmlspecialchars(pun_trim(utf8_substr($item['title'], 0, (FORUM_EXTERN_MAX_SUBJECT_LENGTH - 5)))).' âŠ';
	270	else
	271	$subject_truncated = pun_htmlspecialchars($item['title']);
[1]	272
[3]	273	echo '<li><a href="'.pun_htmlspecialchars($item['link']).'" title="'.pun_htmlspecialchars($item['title']).'">'.$subject_truncated.'</a></li>'."\n";
[1]	274	}
[3]	275	}
[1]	276
[3]	277	// Show recent discussions
	278	if ($action == 'feed')
	279	{
	280	require PUN_ROOT.'include/parser.php';
[1]	281
[3]	282	// Determine what type of feed to output
	283	$type = isset($_GET['type']) ? strtolower($_GET['type']) : 'html';
	284	if (!in_array($type, array('html', 'rss', 'atom', 'xml')))
	285	$type = 'html';
[1]	286
[3]	287	$show = isset($_GET['show']) ? intval($_GET['show']) : 15;
	288	if ($show < 1 \|\| $show > 50)
	289	$show = 15;
	290
	291	// Was a topic ID supplied?
	292	if (isset($_GET['tid']))
[1]	293	{
[3]	294	$tid = intval($_GET['tid']);
[1]	295
[3]	296	// Fetch topic subject
	297	$result = $db->query('SELECT t.subject, t.first_post_id FROM '.$db->prefix.'topics AS t LEFT JOIN '.$db->prefix.'forum_perms AS fp ON (fp.forum_id=t.forum_id AND fp.group_id='.$pun_user['g_id'].') WHERE (fp.read_forum IS NULL OR fp.read_forum=1) AND t.moved_to IS NULL AND t.id='.$tid) or error('Unable to fetch topic info', __FILE__, __LINE__, $db->error());
	298	if (!$db->num_rows($result))
	299	{
	300	http_authenticate_user();
	301	exit($lang_common['Bad request']);
	302	}
[1]	303
[3]	304	$cur_topic = $db->fetch_assoc($result);
[1]	305
[3]	306	if ($pun_config['o_censoring'] == '1')
	307	$cur_topic['subject'] = censor_words($cur_topic['subject']);
[1]	308
[3]	309	// Setup the feed
	310	$feed = array(
	311	'title' => $pun_config['o_board_title'].$lang_common['Title separator'].$cur_topic['subject'],
	312	'link' => get_base_url(true).'/viewtopic.php?id='.$tid,
	313	'description' => sprintf($lang_common['RSS description topic'], $cur_topic['subject']),
	314	'items' => array(),
	315	'type' => 'posts'
	316	);
	317
	318	// Fetch $show posts
	319	$result = $db->query('SELECT p.id, p.poster, p.message, p.hide_smilies, p.posted, p.poster_id, u.email_setting, u.email, p.poster_email FROM '.$db->prefix.'posts AS p INNER JOIN '.$db->prefix.'users AS u ON u.id=p.poster_id WHERE p.topic_id='.$tid.' ORDER BY p.posted DESC LIMIT '.$show) or error('Unable to fetch post info', __FILE__, __LINE__, $db->error());
	320	while ($cur_post = $db->fetch_assoc($result))
[1]	321	{
[3]	322	$cur_post['message'] = parse_message($cur_post['message'], $cur_post['hide_smilies']);
[1]	323
[3]	324	$item = array(
	325	'id' => $cur_post['id'],
	326	'title' => $cur_topic['first_post_id'] == $cur_post['id'] ? $cur_topic['subject'] : $lang_common['RSS reply'].$cur_topic['subject'],
	327	'link' => get_base_url(true).'/viewtopic.php?pid='.$cur_post['id'].'#p'.$cur_post['id'],
	328	'description' => $cur_post['message'],
	329	'author' => array(
	330	'name' => $cur_post['poster'],
	331	),
	332	'pubdate' => $cur_post['posted']
	333	);
	334
	335	if ($cur_post['poster_id'] > 1)
	336	{
	337	if ($cur_post['email_setting'] == '0' && !$pun_user['is_guest'])
	338	$item['author']['email'] = $cur_post['email'];
	339
	340	$item['author']['uri'] = get_base_url(true).'/profile.php?id='.$cur_post['poster_id'];
	341	}
	342	else if ($cur_post['poster_email'] != '' && !$pun_user['is_guest'])
	343	$item['author']['email'] = $cur_post['poster_email'];
	344
	345	$feed['items'][] = $item;
[1]	346	}
	347
[3]	348	$output_func = 'output_'.$type;
	349	$output_func($feed);
[1]	350	}
	351	else
	352	{
[3]	353	$order_posted = isset($_GET['order']) && strtolower($_GET['order']) == 'posted';
	354	$forum_name = '';
	355	$forum_sql = '';
[1]	356
[3]	357	// Were any forum IDs supplied?
	358	if (isset($_GET['fid']) && is_scalar($_GET['fid']) && $_GET['fid'] != '')
	359	{
	360	$fids = explode(',', pun_trim($_GET['fid']));
	361	$fids = array_map('intval', $fids);
[1]	362
[3]	363	if (!empty($fids))
	364	$forum_sql .= ' AND t.forum_id IN('.implode(',', $fids).')';
	365
	366	if (count($fids) == 1)
	367	{
	368	// Fetch forum name
	369	$result = $db->query('SELECT f.forum_name FROM '.$db->prefix.'forums AS f LEFT JOIN '.$db->prefix.'forum_perms AS fp ON (fp.forum_id=f.id AND fp.group_id='.$pun_user['g_id'].') WHERE (fp.read_forum IS NULL OR fp.read_forum=1) AND f.id='.$fids[0]) or error('Unable to fetch forum name', __FILE__, __LINE__, $db->error());
	370	if ($db->num_rows($result))
	371	$forum_name = $lang_common['Title separator'].$db->result($result);
	372	}
	373	}
	374
	375	// Any forum IDs to exclude?
	376	if (isset($_GET['nfid']) && is_scalar($_GET['nfid']) && $_GET['nfid'] != '')
[1]	377	{
[3]	378	$nfids = explode(',', pun_trim($_GET['nfid']));
	379	$nfids = array_map('intval', $nfids);
[1]	380
[3]	381	if (!empty($nfids))
	382	$forum_sql .= ' AND t.forum_id NOT IN('.implode(',', $nfids).')';
	383	}
[1]	384
[3]	385	// Only attempt to cache if caching is enabled and we have all or a single forum
	386	if ($pun_config['o_feed_ttl'] > 0 && ($forum_sql == '' \|\| ($forum_name != '' && !isset($_GET['nfid']))))
	387	$cache_id = 'feed'.sha1($pun_user['g_id'].'\|'.$lang_common['lang_identifier'].'\|'.($order_posted ? '1' : '0').($forum_name == '' ? '' : '\|'.$fids[0]));
	388
	389	// Load cached feed
	390	if (isset($cache_id) && file_exists(FORUM_CACHE_DIR.'cache_'.$cache_id.'.php'))
	391	include FORUM_CACHE_DIR.'cache_'.$cache_id.'.php';
	392
	393	$now = time();
	394	if (!isset($feed) \|\| $cache_expire < $now)
	395	{
	396	// Setup the feed
	397	$feed = array(
	398	'title' => $pun_config['o_board_title'].$forum_name,
	399	'link' => '/index.php',
	400	'description' => sprintf($lang_common['RSS description'], $pun_config['o_board_title']),
	401	'items' => array(),
	402	'type' => 'topics'
	403	);
	404
	405	// Fetch $show topics
	406	$result = $db->query('SELECT t.id, t.poster, t.subject, t.posted, t.last_post, t.last_poster, p.message, p.hide_smilies, u.email_setting, u.email, p.poster_id, p.poster_email FROM '.$db->prefix.'topics AS t INNER JOIN '.$db->prefix.'posts AS p ON p.id='.($order_posted ? 't.first_post_id' : 't.last_post_id').' INNER JOIN '.$db->prefix.'users AS u ON u.id=p.poster_id LEFT JOIN '.$db->prefix.'forum_perms AS fp ON (fp.forum_id=t.forum_id AND fp.group_id='.$pun_user['g_id'].') WHERE (fp.read_forum IS NULL OR fp.read_forum=1) AND t.moved_to IS NULL'.$forum_sql.' ORDER BY '.($order_posted ? 't.posted' : 't.last_post').' DESC LIMIT '.(isset($cache_id) ? 50 : $show)) or error('Unable to fetch topic info', __FILE__, __LINE__, $db->error());
	407	while ($cur_topic = $db->fetch_assoc($result))
	408	{
	409	if ($pun_config['o_censoring'] == '1')
	410	$cur_topic['subject'] = censor_words($cur_topic['subject']);
	411
	412	$cur_topic['message'] = parse_message($cur_topic['message'], $cur_topic['hide_smilies']);
	413
	414	$item = array(
	415	'id' => $cur_topic['id'],
	416	'title' => $cur_topic['subject'],
	417	'link' => '/viewtopic.php?id='.$cur_topic['id'].($order_posted ? '' : '&action=new'),
	418	'description' => $cur_topic['message'],
	419	'author' => array(
	420	'name' => $order_posted ? $cur_topic['poster'] : $cur_topic['last_poster']
	421	),
	422	'pubdate' => $order_posted ? $cur_topic['posted'] : $cur_topic['last_post']
	423	);
	424
	425	if ($cur_topic['poster_id'] > 1)
	426	{
	427	if ($cur_topic['email_setting'] == '0' && !$pun_user['is_guest'])
	428	$item['author']['email'] = $cur_topic['email'];
	429
	430	$item['author']['uri'] = '/profile.php?id='.$cur_topic['poster_id'];
	431	}
	432	else if ($cur_topic['poster_email'] != '' && !$pun_user['is_guest'])
	433	$item['author']['email'] = $cur_topic['poster_email'];
	434
	435	$feed['items'][] = $item;
	436	}
	437
	438	// Output feed as PHP code
	439	if (isset($cache_id))
	440	{
	441	$fh = @fopen(FORUM_CACHE_DIR.'cache_'.$cache_id.'.php', 'wb');
	442	if (!$fh)
	443	error('Unable to write feed cache file to cache directory. Please make sure PHP has write access to the directory \''.pun_htmlspecialchars(FORUM_CACHE_DIR).'\'', __FILE__, __LINE__);
	444
	445	fwrite($fh, '<?php'."\n\n".'$feed = '.var_export($feed, true).';'."\n\n".'$cache_expire = '.($now + ($pun_config['o_feed_ttl'] * 60)).';'."\n\n".'?>');
	446
	447	fclose($fh);
	448
	449	if (function_exists('apc_delete_file'))
	450	@apc_delete_file(FORUM_CACHE_DIR.'cache_'.$cache_id.'.php');
	451	}
[1]	452	}
[3]	453
	454	// If we only want to show a few items but due to caching we have too many
	455	if (count($feed['items']) > $show)
	456	$feed['items'] = array_slice($feed['items'], 0, $show);
	457
	458	// Prepend the current base URL onto some links. Done after caching to handle http/https correctly
	459	$feed['link'] = get_base_url(true).$feed['link'];
	460
	461	foreach ($feed['items'] as $key => $item)
	462	{
	463	$feed['items'][$key]['link'] = get_base_url(true).$item['link'];
	464
	465	if (isset($item['author']['uri']))
	466	$feed['items'][$key]['author']['uri'] = get_base_url(true).$item['author']['uri'];
	467	}
	468
	469	$output_func = 'output_'.$type;
	470	$output_func($feed);
[1]	471	}
	472
[3]	473	exit;
[1]	474	}
	475
	476	// Show users online
[3]	477	else if ($action == 'online' \|\| $action == 'online_full')
[1]	478	{
	479	// Load the index.php language file
	480	require PUN_ROOT.'lang/'.$pun_config['o_default_lang'].'/index.php';
[3]	481
[1]	482	// Fetch users online info and generate strings for output
	483	$num_guests = $num_users = 0;
	484	$users = array();
	485
[3]	486	$result = $db->query('SELECT user_id, ident FROM '.$db->prefix.'online WHERE idle=0 ORDER BY ident', true) or error('Unable to fetch online list', __FILE__, __LINE__, $db->error());
	487
[1]	488	while ($pun_user_online = $db->fetch_assoc($result))
	489	{
	490	if ($pun_user_online['user_id'] > 1)
	491	{
[3]	492	$users[] = ($pun_user['g_view_users'] == '1') ? '<a href="'.pun_htmlspecialchars(get_base_url(true)).'/profile.php?id='.$pun_user_online['user_id'].'">'.pun_htmlspecialchars($pun_user_online['ident']).'</a>' : pun_htmlspecialchars($pun_user_online['ident']);
[1]	493	++$num_users;
	494	}
	495	else
	496	++$num_guests;
	497	}
	498
[3]	499	// Send the Content-type header in case the web server is setup to send something else
	500	header('Content-type: text/html; charset=utf-8');
	501	header('Expires: '.gmdate('D, d M Y H:i:s').' GMT');
	502	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
	503	header('Pragma: public');
[1]	504
[3]	505	echo sprintf($lang_index['Guests online'], forum_number_format($num_guests)).'<br />'."\n";
	506
	507	if ($action == 'online_full' && !empty($users))
	508	echo sprintf($lang_index['Users online'], implode(', ', $users)).'<br />'."\n";
[1]	509	else
[3]	510	echo sprintf($lang_index['Users online'], forum_number_format($num_users)).'<br />'."\n";
[1]	511
[3]	512	exit;
[1]	513	}
	514
	515	// Show board statistics
[3]	516	else if ($action == 'stats')
[1]	517	{
	518	// Load the index.php language file
	519	require PUN_ROOT.'lang/'.$pun_config['o_default_lang'].'/index.php';
	520
	521	// Collect some statistics from the database
[3]	522	if (file_exists(FORUM_CACHE_DIR.'cache_users_info.php'))
	523	include FORUM_CACHE_DIR.'cache_users_info.php';
[1]	524
[3]	525	if (!defined('PUN_USERS_INFO_LOADED'))
	526	{
	527	if (!defined('FORUM_CACHE_FUNCTIONS_LOADED'))
	528	require PUN_ROOT.'include/cache.php';
[1]	529
[3]	530	generate_users_info_cache();
	531	require FORUM_CACHE_DIR.'cache_users_info.php';
	532	}
	533
	534	$result = $db->query('SELECT SUM(num_topics), SUM(num_posts) FROM '.$db->prefix.'forums') or error('Unable to fetch topic/post count', __FILE__, __LINE__, $db->error());
[1]	535	list($stats['total_topics'], $stats['total_posts']) = $db->fetch_row($result);
	536
[3]	537	// Send the Content-type header in case the web server is setup to send something else
	538	header('Content-type: text/html; charset=utf-8');
	539	header('Expires: '.gmdate('D, d M Y H:i:s').' GMT');
	540	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
	541	header('Pragma: public');
[1]	542
[3]	543	echo sprintf($lang_index['No of users'], forum_number_format($stats['total_users'])).'<br />'."\n";
	544	echo sprintf($lang_index['Newest user'], (($pun_user['g_view_users'] == '1') ? '<a href="'.pun_htmlspecialchars(get_base_url(true)).'/profile.php?id='.$stats['last_user']['id'].'">'.pun_htmlspecialchars($stats['last_user']['username']).'</a>' : pun_htmlspecialchars($stats['last_user']['username']))).'<br />'."\n";
	545	echo sprintf($lang_index['No of topics'], forum_number_format($stats['total_topics'])).'<br />'."\n";
	546	echo sprintf($lang_index['No of posts'], forum_number_format($stats['total_posts'])).'<br />'."\n";
	547
	548	exit;
[1]	549	}
	550
[3]	551	// If we end up here, the script was called with some wacky parameters
	552	exit($lang_common['Bad request']);

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