532 lines
20 KiB
PHP
532 lines
20 KiB
PHP
<?php
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/**
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* Copyright (C) 2008-2012 FluxBB
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* based on code by Rickard Andersson copyright (C) 2002-2008 PunBB
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* License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher
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*/
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/*-----------------------------------------------------------------------------
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INSTRUCTIONS
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This script is used to include information about your board from
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pages outside the forums and to syndicate news about recent
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discussions via RSS/Atom/XML. The script can display a list of
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recent discussions, a list of active users or a collection of
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general board statistics. The script can be called directly via
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an URL, from a PHP include command or through the use of Server
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Side Includes (SSI).
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The scripts behaviour is controlled via variables supplied in the
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URL to the script. The different variables are: action (what to
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do), show (how many items to display), fid (the ID or IDs of
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the forum(s) to poll for topics), nfid (the ID or IDs of forums
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that should be excluded), tid (the ID of the topic from which to
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display posts) and type (output as HTML or RSS). The only
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mandatory variable is action. Possible/default values are:
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action: feed - show most recent topics/posts (HTML or RSS)
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online - show users online (HTML)
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online_full - as above, but includes a full list (HTML)
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stats - show board statistics (HTML)
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type: rss - output as RSS 2.0
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atom - output as Atom 1.0
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xml - output as XML
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html - output as HTML (<li>'s)
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fid: One or more forum IDs (comma-separated). If ignored,
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topics from all readable forums will be pulled.
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nfid: One or more forum IDs (comma-separated) that are to be
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excluded. E.g. the ID of a a test forum.
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tid: A topic ID from which to show posts. If a tid is supplied,
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fid and nfid are ignored.
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show: Any integer value between 1 and 50. The default is 15.
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order: last_post - show topics ordered by when they were last
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posted in, giving information about the reply.
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posted - show topics ordered by when they were first
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posted, giving information about the original post.
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-----------------------------------------------------------------------------*/
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define('PUN_QUIET_VISIT', 1);
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if (!defined('PUN_ROOT'))
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define('PUN_ROOT', dirname(__FILE__).'/');
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require PUN_ROOT.'include/common.php';
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// The length at which topic subjects will be truncated (for HTML output)
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if (!defined('FORUM_EXTERN_MAX_SUBJECT_LENGTH'))
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define('FORUM_EXTERN_MAX_SUBJECT_LENGTH', 30);
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// If we're a guest and we've sent a username/pass, we can try to authenticate using those details
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if ($pun_user['is_guest'] && isset($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']))
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authenticate_user($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']);
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if ($pun_user['g_read_board'] == '0')
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{
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http_authenticate_user();
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exit($lang_common['No view']);
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}
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$action = is_string($_GET['action'] ?? null) ? strtolower($_GET['action']) : 'feed';
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// Handle a couple old formats, from FluxBB 1.2
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switch ($action)
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{
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case 'active':
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$action = 'feed';
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$_GET['order'] = 'last_post';
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break;
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case 'new':
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$action = 'feed';
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$_GET['order'] = 'posted';
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break;
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}
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//
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// Sends the proper headers for Basic HTTP Authentication
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//
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function http_authenticate_user()
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{
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global $pun_config, $pun_user;
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if (!$pun_user['is_guest'])
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return;
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header('WWW-Authenticate: Basic realm="'.$pun_config['o_board_title'].' External Syndication"');
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header('HTTP/1.0 401 Unauthorized');
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}
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//
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// Output $feed as RSS 2.0
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//
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function output_rss(array $feed)
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{
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global $lang_common, $pun_config;
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// Send XML/no cache headers
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forum_http_headers('application/xml');
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echo '<?xml version="1.0" encoding="utf-8"?>'."\n";
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echo '<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">'."\n";
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echo "\t".'<channel>'."\n";
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echo "\t\t".'<atom:link href="'.pun_htmlspecialchars(get_current_url()).'" rel="self" type="application/rss+xml" />'."\n";
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echo "\t\t".'<title><![CDATA['.escape_cdata($feed['title']).']]></title>'."\n";
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echo "\t\t".'<link>'.pun_htmlspecialchars($feed['link']).'</link>'."\n";
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echo "\t\t".'<description><![CDATA['.escape_cdata($feed['description']).']]></description>'."\n";
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echo "\t\t".'<lastBuildDate>'.gmdate('r', count($feed['items']) ? $feed['items'][0]['pubdate'] : time()).'</lastBuildDate>'."\n";
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if ($pun_config['o_show_version'] == '1')
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echo "\t\t".'<generator>FluxBB '.$pun_config['o_cur_version'].'</generator>'."\n";
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else
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echo "\t\t".'<generator>FluxBB</generator>'."\n";
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foreach ($feed['items'] as $item)
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{
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echo "\t\t".'<item>'."\n";
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echo "\t\t\t".'<title><![CDATA['.escape_cdata($item['title']).']]></title>'."\n";
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echo "\t\t\t".'<link>'.pun_htmlspecialchars($item['link']).'</link>'."\n";
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echo "\t\t\t".'<description><![CDATA['.escape_cdata($item['description']).']]></description>'."\n";
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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";
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echo "\t\t\t".'<pubDate>'.gmdate('r', $item['pubdate']).'</pubDate>'."\n";
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echo "\t\t\t".'<guid>'.pun_htmlspecialchars($item['link']).'</guid>'."\n";
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echo "\t\t".'</item>'."\n";
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}
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echo "\t".'</channel>'."\n";
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echo '</rss>'."\n";
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}
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//
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// Output $feed as Atom 1.0
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//
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function output_atom(array $feed)
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{
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global $lang_common, $pun_config;
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// Send XML/no cache headers
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forum_http_headers('application/atom+xml');
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echo '<?xml version="1.0" encoding="utf-8"?>'."\n";
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echo '<feed xmlns="http://www.w3.org/2005/Atom">'."\n";
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echo "\t".'<title type="html"><![CDATA['.escape_cdata($feed['title']).']]></title>'."\n";
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echo "\t".'<link rel="self" href="'.pun_htmlspecialchars(get_current_url()).'"/>'."\n";
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echo "\t".'<link href="'.pun_htmlspecialchars($feed['link']).'"/>'."\n";
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echo "\t".'<updated>'.gmdate('Y-m-d\TH:i:s\Z', count($feed['items']) ? $feed['items'][0]['pubdate'] : time()).'</updated>'."\n";
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if ($pun_config['o_show_version'] == '1')
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echo "\t".'<generator version="'.$pun_config['o_cur_version'].'">FluxBB</generator>'."\n";
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else
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echo "\t".'<generator>FluxBB</generator>'."\n";
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echo "\t".'<id>'.pun_htmlspecialchars($feed['link']).'</id>'."\n";
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$content_tag = $feed['type'] == 'posts' ? 'content' : 'summary';
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foreach ($feed['items'] as $item)
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{
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echo "\t".'<entry>'."\n";
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echo "\t\t".'<title type="html"><![CDATA['.escape_cdata($item['title']).']]></title>'."\n";
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echo "\t\t".'<link rel="alternate" href="'.pun_htmlspecialchars($item['link']).'"/>'."\n";
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echo "\t\t".'<'.$content_tag.' type="html"><![CDATA['.escape_cdata($item['description']).']]></'.$content_tag.'>'."\n";
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echo "\t\t".'<author>'."\n";
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echo "\t\t\t".'<name><![CDATA['.escape_cdata($item['author']['name']).']]></name>'."\n";
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if (isset($item['author']['email']))
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echo "\t\t\t".'<email><![CDATA['.escape_cdata($item['author']['email']).']]></email>'."\n";
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if (isset($item['author']['uri']))
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echo "\t\t\t".'<uri>'.pun_htmlspecialchars($item['author']['uri']).'</uri>'."\n";
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echo "\t\t".'</author>'."\n";
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echo "\t\t".'<updated>'.gmdate('Y-m-d\TH:i:s\Z', $item['pubdate']).'</updated>'."\n";
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echo "\t\t".'<id>'.pun_htmlspecialchars($item['link']).'</id>'."\n";
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echo "\t".'</entry>'."\n";
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}
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echo '</feed>'."\n";
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}
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//
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// Output $feed as XML
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//
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function output_xml(array $feed)
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{
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global $lang_common, $pun_config;
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// Send XML/no cache headers
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forum_http_headers('application/xml');
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echo '<?xml version="1.0" encoding="utf-8"?>'."\n";
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echo '<source>'."\n";
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echo "\t".'<url>'.pun_htmlspecialchars($feed['link']).'</url>'."\n";
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$forum_tag = $feed['type'] == 'posts' ? 'post' : 'topic';
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foreach ($feed['items'] as $item)
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{
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echo "\t".'<'.$forum_tag.' id="'.$item['id'].'">'."\n";
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echo "\t\t".'<title><![CDATA['.escape_cdata($item['title']).']]></title>'."\n";
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echo "\t\t".'<link>'.pun_htmlspecialchars($item['link']).'</link>'."\n";
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echo "\t\t".'<content><![CDATA['.escape_cdata($item['description']).']]></content>'."\n";
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echo "\t\t".'<author>'."\n";
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echo "\t\t\t".'<name><![CDATA['.escape_cdata($item['author']['name']).']]></name>'."\n";
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if (isset($item['author']['email']))
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echo "\t\t\t".'<email><![CDATA['.escape_cdata($item['author']['email']).']]></email>'."\n";
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if (isset($item['author']['uri']))
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echo "\t\t\t".'<uri>'.pun_htmlspecialchars($item['author']['uri']).'</uri>'."\n";
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echo "\t\t".'</author>'."\n";
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echo "\t\t".'<posted>'.gmdate('r', $item['pubdate']).'</posted>'."\n";
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echo "\t".'</'.$forum_tag.'>'."\n";
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}
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echo '</source>'."\n";
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}
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//
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// Output $feed as HTML (using <li> tags)
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//
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function output_html(array $feed)
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{
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// Send the Content-type header in case the web server is setup to send something else
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forum_http_headers();
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foreach ($feed['items'] as $item)
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{
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if (pun_strlen($item['title']) > FORUM_EXTERN_MAX_SUBJECT_LENGTH)
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$subject_truncated = pun_htmlspecialchars(pun_trim(mb_substr($item['title'], 0, (FORUM_EXTERN_MAX_SUBJECT_LENGTH - 5)))).' …';
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else
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$subject_truncated = pun_htmlspecialchars($item['title']);
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echo '<li><a href="'.pun_htmlspecialchars($item['link']).'" title="'.pun_htmlspecialchars($item['title']).'">'.$subject_truncated.'</a></li>'."\n";
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}
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}
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// Show recent discussions
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if ($action === 'feed')
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{
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require PUN_ROOT.'include/parser.php';
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// Determine what type of feed to output
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$type = is_string($_GET['type'] ?? null) ? strtolower($_GET['type']) : 'html';
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if (!in_array($type, array('html', 'rss', 'atom', 'xml')))
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$type = 'html';
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$show = isset($_GET['show']) ? intval($_GET['show']) : 15;
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if ($show < 1 || $show > 50)
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$show = 15;
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// Was a topic ID supplied?
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if (isset($_GET['tid']))
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{
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$tid = intval($_GET['tid']);
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// Fetch topic subject
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$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__, $db->error());
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$cur_topic = $db->fetch_assoc($result);
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if (!$cur_topic)
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{
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http_authenticate_user();
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exit($lang_common['Bad request']);
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}
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if ($pun_config['o_censoring'] == '1')
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$cur_topic['subject'] = censor_words($cur_topic['subject']);
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// Setup the feed
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$feed = array(
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'title' => $pun_config['o_board_title'].$lang_common['Title separator'].$cur_topic['subject'],
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'link' => get_base_url(true).'/viewtopic.php?id='.$tid,
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'description' => sprintf($lang_common['RSS description topic'], $cur_topic['subject']),
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'items' => array(),
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'type' => 'posts'
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);
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// Fetch $show posts
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$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__, $db->error());
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while ($cur_post = $db->fetch_assoc($result))
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{
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$cur_post['message'] = parse_message($cur_post['message'], $cur_post['hide_smilies']);
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$item = array(
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'id' => $cur_post['id'],
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'title' => $cur_topic['first_post_id'] == $cur_post['id'] ? $cur_topic['subject'] : $lang_common['RSS reply'].$cur_topic['subject'],
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'link' => get_base_url(true).'/viewtopic.php?pid='.$cur_post['id'].'#p'.$cur_post['id'],
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'description' => $cur_post['message'],
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'author' => array(
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'name' => $cur_post['poster'],
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),
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'pubdate' => $cur_post['posted']
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);
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if ($cur_post['poster_id'] > 1)
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{
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if ($cur_post['email_setting'] == '0' && !$pun_user['is_guest'])
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$item['author']['email'] = $cur_post['email'];
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$item['author']['uri'] = get_base_url(true).'/profile.php?id='.$cur_post['poster_id'];
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}
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else if ($cur_post['poster_email'] != '' && !$pun_user['is_guest'])
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$item['author']['email'] = $cur_post['poster_email'];
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$feed['items'][] = $item;
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}
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$output_func = 'output_'.$type;
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$output_func($feed);
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}
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else
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{
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$order_posted = is_string($_GET['order'] ?? null) && strtolower($_GET['order']) == 'posted';
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$forum_name = '';
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$forum_sql = '';
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// Were any forum IDs supplied?
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if (is_string($_GET['fid'] ?? null) && $_GET['fid'] != '')
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{
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$fids = explode(',', pun_trim($_GET['fid']));
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$fids = array_map('intval', $fids);
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if (!empty($fids))
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$forum_sql .= ' AND t.forum_id IN ('.implode(',', $fids).')';
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if (count($fids) == 1)
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{
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// Fetch forum name
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$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__, $db->error());
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$forum = $db->fetch_row($result);
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if (is_array($forum))
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$forum_name = $lang_common['Title separator'].$forum[0];
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}
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}
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// Any forum IDs to exclude?
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if (is_string($_GET['nfid'] ?? null) && $_GET['nfid'] != '')
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{
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$nfids = explode(',', pun_trim($_GET['nfid']));
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$nfids = array_map('intval', $nfids);
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if (!empty($nfids))
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$forum_sql .= ' AND t.forum_id NOT IN ('.implode(',', $nfids).')';
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}
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// Only attempt to cache if caching is enabled and we have all or a single forum
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if ($pun_config['o_feed_ttl'] > 0 && ($forum_sql == '' || ($forum_name != '' && !isset($_GET['nfid']))))
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$cache_id = 'feed'.sha1($pun_user['g_id'].'|'.$lang_common['lang_identifier'].'|'.($order_posted ? '1' : '0').($forum_name == '' ? '' : '|'.$fids[0]));
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// Load cached feed
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if (isset($cache_id) && file_exists(FORUM_CACHE_DIR.'cache_'.$cache_id.'.php'))
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include FORUM_CACHE_DIR.'cache_'.$cache_id.'.php';
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$now = time();
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if (!isset($feed) || $cache_expire < $now)
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{
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// Setup the feed
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$feed = array(
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'title' => $pun_config['o_board_title'].$forum_name,
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'link' => '/index.php',
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'description' => sprintf($lang_common['RSS description'], $pun_config['o_board_title']),
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'items' => array(),
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'type' => 'topics'
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);
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// Fetch $show topics
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$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__, $db->error());
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while ($cur_topic = $db->fetch_assoc($result))
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{
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if ($pun_config['o_censoring'] == '1')
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$cur_topic['subject'] = censor_words($cur_topic['subject']);
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$cur_topic['message'] = parse_message($cur_topic['message'], $cur_topic['hide_smilies']);
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$item = array(
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'id' => $cur_topic['id'],
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'title' => $cur_topic['subject'],
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'link' => '/viewtopic.php?id='.$cur_topic['id'].($order_posted ? '' : '&action=new'),
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'description' => $cur_topic['message'],
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'author' => array(
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'name' => $order_posted ? $cur_topic['poster'] : $cur_topic['last_poster']
|
|
),
|
|
'pubdate' => $order_posted ? $cur_topic['posted'] : $cur_topic['last_post']
|
|
);
|
|
|
|
if ($cur_topic['poster_id'] > 1)
|
|
{
|
|
if ($cur_topic['email_setting'] == '0' && !$pun_user['is_guest'])
|
|
$item['author']['email'] = $cur_topic['email'];
|
|
|
|
$item['author']['uri'] = '/profile.php?id='.$cur_topic['poster_id'];
|
|
}
|
|
else if ($cur_topic['poster_email'] != '' && !$pun_user['is_guest'])
|
|
$item['author']['email'] = $cur_topic['poster_email'];
|
|
|
|
$feed['items'][] = $item;
|
|
}
|
|
|
|
// Output feed as PHP code
|
|
if (isset($cache_id))
|
|
{
|
|
if (!defined('FORUM_CACHE_FUNCTIONS_LOADED'))
|
|
require PUN_ROOT.'include/cache.php';
|
|
|
|
$content = '<?php'."\n\n".'$feed = '.var_export($feed, true).';'."\n\n".'$cache_expire = '.($now + ($pun_config['o_feed_ttl'] * 60)).';'."\n\n".'?>';
|
|
fluxbb_write_cache_file('cache_'.$cache_id.'.php', $content);
|
|
}
|
|
}
|
|
|
|
// If we only want to show a few items but due to caching we have too many
|
|
if (count($feed['items']) > $show)
|
|
$feed['items'] = array_slice($feed['items'], 0, $show);
|
|
|
|
// Prepend the current base URL onto some links. Done after caching to handle http/https correctly
|
|
$feed['link'] = get_base_url(true).$feed['link'];
|
|
|
|
foreach ($feed['items'] as $key => $item)
|
|
{
|
|
$feed['items'][$key]['link'] = get_base_url(true).$item['link'];
|
|
|
|
if (isset($item['author']['uri']))
|
|
$feed['items'][$key]['author']['uri'] = get_base_url(true).$item['author']['uri'];
|
|
}
|
|
|
|
$output_func = 'output_'.$type;
|
|
$output_func($feed);
|
|
}
|
|
|
|
exit;
|
|
}
|
|
|
|
// Show users online
|
|
else if ($action === 'online' || $action === 'online_full')
|
|
{
|
|
// Load the index.php language file
|
|
require PUN_ROOT.'lang/'.$pun_config['o_default_lang'].'/index.php';
|
|
|
|
// Fetch users online info and generate strings for output
|
|
$num_guests = $num_users = 0;
|
|
$users = array();
|
|
|
|
$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__, $db->error());
|
|
|
|
while ($pun_user_online = $db->fetch_assoc($result))
|
|
{
|
|
if ($pun_user_online['user_id'] > 1)
|
|
{
|
|
$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']);
|
|
++$num_users;
|
|
}
|
|
else
|
|
++$num_guests;
|
|
}
|
|
|
|
// Send the Content-type header in case the web server is setup to send something else
|
|
forum_http_headers();
|
|
|
|
echo sprintf($lang_index['Guests online'], forum_number_format($num_guests)).'<br />'."\n";
|
|
|
|
if ($action === 'online_full' && !empty($users))
|
|
echo sprintf($lang_index['Users online'], implode(', ', $users)).'<br />'."\n";
|
|
else
|
|
echo sprintf($lang_index['Users online'], forum_number_format($num_users)).'<br />'."\n";
|
|
|
|
exit;
|
|
}
|
|
|
|
// Show board statistics
|
|
else if ($action === 'stats')
|
|
{
|
|
// Load the index.php language file
|
|
require PUN_ROOT.'lang/'.$pun_config['o_default_lang'].'/index.php';
|
|
|
|
// Collect some statistics from the database
|
|
if (file_exists(FORUM_CACHE_DIR.'cache_users_info.php'))
|
|
include FORUM_CACHE_DIR.'cache_users_info.php';
|
|
|
|
if (!defined('PUN_USERS_INFO_LOADED'))
|
|
{
|
|
if (!defined('FORUM_CACHE_FUNCTIONS_LOADED'))
|
|
require PUN_ROOT.'include/cache.php';
|
|
|
|
generate_users_info_cache();
|
|
require FORUM_CACHE_DIR.'cache_users_info.php';
|
|
}
|
|
|
|
$result = $db->query('SELECT SUM(num_topics), SUM(num_posts) FROM '.$db->prefix.'forums') or error('Unable to fetch topic/post count', __FILE__, __LINE__, $db->error());
|
|
list($stats['total_topics'], $stats['total_posts']) = $db->fetch_row($result);
|
|
|
|
// Send the Content-type header in case the web server is setup to send something else
|
|
forum_http_headers();
|
|
|
|
echo sprintf($lang_index['No of users'], forum_number_format($stats['total_users'])).'<br />'."\n";
|
|
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($stats['last_user']['username']))).'<br />'."\n";
|
|
echo sprintf($lang_index['No of topics'], forum_number_format($stats['total_topics'])).'<br />'."\n";
|
|
echo sprintf($lang_index['No of posts'], forum_number_format($stats['total_posts'])).'<br />'."\n";
|
|
|
|
exit;
|
|
}
|
|
|
|
// If we end up here, the script was called with some wacky parameters
|
|
exit($lang_common['Bad request']);
|