function ShowXmlFeed()
{
global $board, $board_info, $context, $scripturl, $txt, $modSettings, $user_info;
global $query_this_board, $smcFunc, $forum_version, $cdata_override;
// If it's not enabled, die.
if (empty($modSettings['xmlnews_enable'])) {
obExit(false);
}
loadLanguage('Stats');
// Default to latest 5. No more than 255, please.
$_GET['limit'] = empty($_GET['limit']) || (int) $_GET['limit'] < 1 ? 5 : min((int) $_GET['limit'], 255);
// Handle the cases where a board, boards, or category is asked for.
$query_this_board = 1;
$context['optimize_msg'] = array('highest' => 'm.id_msg <= b.id_last_msg');
if (!empty($_REQUEST['c']) && empty($board)) {
$_REQUEST['c'] = explode(',', $_REQUEST['c']);
foreach ($_REQUEST['c'] as $i => $c) {
$_REQUEST['c'][$i] = (int) $c;
}
if (count($_REQUEST['c']) == 1) {
$request = smf_db_query('
SELECT name
FROM {db_prefix}categories
WHERE id_cat = {int:current_category}', array('current_category' => (int) $_REQUEST['c'][0]));
list($feed_title) = mysql_fetch_row($request);
mysql_free_result($request);
$feed_title = ' - ' . strip_tags($feed_title);
}
$request = smf_db_query('
SELECT b.id_board, b.num_posts
FROM {db_prefix}boards AS b
WHERE b.id_cat IN ({array_int:current_category_list})
AND {query_see_board}', array('current_category_list' => $_REQUEST['c']));
$total_cat_posts = 0;
$boards = array();
while ($row = mysql_fetch_assoc($request)) {
$boards[] = $row['id_board'];
$total_cat_posts += $row['num_posts'];
}
mysql_free_result($request);
if (!empty($boards)) {
$query_this_board = 'b.id_board IN (' . implode(', ', $boards) . ')';
}
// Try to limit the number of messages we look through.
if ($total_cat_posts > 100 && $total_cat_posts > $modSettings['totalMessages'] / 15) {
$context['optimize_msg']['lowest'] = 'm.id_msg >= ' . max(0, $modSettings['maxMsgID'] - 400 - $_GET['limit'] * 5);
}
} elseif (!empty($_REQUEST['boards'])) {
$_REQUEST['boards'] = explode(',', $_REQUEST['boards']);
foreach ($_REQUEST['boards'] as $i => $b) {
$_REQUEST['boards'][$i] = (int) $b;
}
$request = smf_db_query('
SELECT b.id_board, b.num_posts, b.name
FROM {db_prefix}boards AS b
WHERE b.id_board IN ({array_int:board_list})
AND {query_see_board}
LIMIT ' . count($_REQUEST['boards']), array('board_list' => $_REQUEST['boards']));
// Either the board specified doesn't exist or you have no access.
$num_boards = mysql_num_rows($request);
if ($num_boards == 0) {
fatal_lang_error('no_board');
}
$total_posts = 0;
$boards = array();
while ($row = mysql_fetch_assoc($request)) {
if ($num_boards == 1) {
$feed_title = ' - ' . strip_tags($row['name']);
}
$boards[] = $row['id_board'];
$total_posts += $row['num_posts'];
}
mysql_free_result($request);
if (!empty($boards)) {
$query_this_board = 'b.id_board IN (' . implode(', ', $boards) . ')';
}
// The more boards, the more we're going to look through...
if ($total_posts > 100 && $total_posts > $modSettings['totalMessages'] / 12) {
$context['optimize_msg']['lowest'] = 'm.id_msg >= ' . max(0, $modSettings['maxMsgID'] - 500 - $_GET['limit'] * 5);
}
} elseif (!empty($board)) {
$request = smf_db_query('
SELECT num_posts
FROM {db_prefix}boards
WHERE id_board = {int:current_board}
LIMIT 1', array('current_board' => $board));
list($total_posts) = mysql_fetch_row($request);
mysql_free_result($request);
$feed_title = ' - ' . strip_tags($board_info['name']);
$query_this_board = 'b.id_board = ' . $board;
// Try to look through just a few messages, if at all possible.
if ($total_posts > 80 && $total_posts > $modSettings['totalMessages'] / 10) {
$context['optimize_msg']['lowest'] = 'm.id_msg >= ' . max(0, $modSettings['maxMsgID'] - 600 - $_GET['limit'] * 5);
}
} else {
$query_this_board = '{query_see_board}' . (!empty($modSettings['recycle_enable']) && $modSettings['recycle_board'] > 0 ? '
AND b.id_board != ' . $modSettings['recycle_board'] : '');
$context['optimize_msg']['lowest'] = 'm.id_msg >= ' . max(0, $modSettings['maxMsgID'] - 100 - $_GET['limit'] * 5);
}
// Show in rss or proprietary format?
$xml_format = isset($_GET['type']) && in_array($_GET['type'], array('smf', 'rss', 'rss2', 'atom', 'rdf', 'webslice')) ? $_GET['type'] : 'smf';
// !!! Birthdays?
// List all the different types of data they can pull.
$subActions = array('recent' => array('getXmlRecent', 'recent-post'), 'news' => array('getXmlNews', 'article'), 'members' => array('getXmlMembers', 'member'), 'profile' => array('getXmlProfile', null));
if (empty($_GET['sa']) || !isset($subActions[$_GET['sa']])) {
$_GET['sa'] = 'recent';
}
//!!! Temp - webslices doesn't do everything yet.
if ($xml_format == 'webslice' && $_GET['sa'] != 'recent') {
$xml_format = 'rss2';
} elseif ($xml_format == 'webslice') {
$context['user'] += $user_info;
$cdata_override = true;
loadTemplate('Xml');
}
// We only want some information, not all of it.
$cachekey = array($xml_format, $_GET['action'], $_GET['limit'], $_GET['sa']);
foreach (array('board', 'boards', 'c') as $var) {
if (isset($_REQUEST[$var])) {
$cachekey[] = $_REQUEST[$var];
}
}
$cachekey = md5(serialize($cachekey) . (!empty($query_this_board) ? $query_this_board : ''));
$cache_t = microtime();
// Get the associative array representing the xml.
if (!empty($modSettings['cache_enable']) && (!$user_info['is_guest'] || $modSettings['cache_enable'] >= 3)) {
$xml = CacheAPI::getCache('xmlfeed-' . $xml_format . ':' . ($user_info['is_guest'] ? '' : $user_info['id'] . '-') . $cachekey, 240);
}
if (empty($xml)) {
$xml = $subActions[$_GET['sa']][0]($xml_format);
if (!empty($modSettings['cache_enable']) && ($user_info['is_guest'] && $modSettings['cache_enable'] >= 3 || !$user_info['is_guest'] && array_sum(explode(' ', microtime())) - array_sum(explode(' ', $cache_t)) > 0.2)) {
CacheAPI::putCache('xmlfeed-' . $xml_format . ':' . ($user_info['is_guest'] ? '' : $user_info['id'] . '-') . $cachekey, $xml, 240);
}
}
$feed_title = htmlspecialchars(strip_tags($context['forum_name'])) . (isset($feed_title) ? $feed_title : '');
// This is an xml file....
ob_end_clean();
if (!empty($modSettings['enableCompressedOutput'])) {
@ob_start('ob_gzhandler');
} else {
ob_start();
}
if ($xml_format == 'smf' || isset($_REQUEST['debug'])) {
header('Content-Type: text/xml; charset=UTF-8');
} elseif ($xml_format == 'rss' || $xml_format == 'rss2' || $xml_format == 'webslice') {
header('Content-Type: application/rss+xml; charset=UTF-8');
} elseif ($xml_format == 'atom') {
header('Content-Type: application/atom+xml; charset=UTF-8');
} elseif ($xml_format == 'rdf') {
header('Content-Type: ' . ($context['browser']['is_ie'] ? 'text/xml' : 'application/rdf+xml') . '; charset=UTF-8');
}
// First, output the xml header.
echo '<?xml version="1.0" encoding="UTF-8"?' . '>';
// Are we outputting an rss feed or one with more information?
if ($xml_format == 'rss' || $xml_format == 'rss2') {
// Start with an RSS 2.0 header.
echo '
<rss version=', $xml_format == 'rss2' ? '"2.0"' : '"0.92"', ' xml:lang="', strtr($txt['lang_locale'], '_', '-'), '">
<channel>
<title>', $feed_title, '</title>
<link>', $scripturl, '</link>
<description><![CDATA[', strip_tags($txt['xml_rss_desc']), ']]></description>';
// Output all of the associative array, start indenting with 2 tabs, and name everything "item".
dumpTags($xml, 2, 'item', $xml_format);
// Output the footer of the xml.
echo '
</channel>
</rss>';
} elseif ($xml_format == 'webslice') {
$context['recent_posts_data'] = $xml;
// This always has RSS 2
echo '
<rss version="2.0" xmlns:mon="http://www.microsoft.com/schemas/rss/monitoring/2007" xml:lang="', strtr($txt['lang_locale'], '_', '-'), '">
<channel>
<title>', $feed_title, ' - ', $txt['recent_posts'], '</title>
<link>', $scripturl, '?action=recent</link>
<description><![CDATA[', strip_tags($txt['xml_rss_desc']), ']]></description>
<item>
<title>', $feed_title, ' - ', $txt['recent_posts'], '</title>
<link>', $scripturl, '?action=recent</link>
<description><![CDATA[
', template_webslice_header_above(), '
', template_webslice_recent_posts(), '
', template_webslice_header_below(), '
]]></description>
</item>
</channel>
</rss>';
} elseif ($xml_format == 'atom') {
echo '
<feed xmlns="http://www.w3.org/2005/Atom">
<title>', $feed_title, '</title>
<link rel="alternate" type="text/html" href="', $scripturl, '" />
<modified>', gmstrftime('%Y-%m-%dT%H:%M:%SZ'), '</modified>
<tagline><![CDATA[', strip_tags($txt['xml_rss_desc']), ']]></tagline>
<generator uri="http://www.simplemachines.org" version="', strtr($forum_version, array('SMF' => '')), '">SMF</generator>
<author>
<name>', strip_tags($context['forum_name']), '</name>
</author>';
dumpTags($xml, 2, 'entry', $xml_format);
echo '
</feed>';
} elseif ($xml_format == 'rdf') {
echo '
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://purl.org/rss/1.0/">
<channel rdf:about="', $scripturl, '">
<title>', $feed_title, '</title>
<link>', $scripturl, '</link>
<description><![CDATA[', strip_tags($txt['xml_rss_desc']), ']]></description>
<items>
<rdf:Seq>';
foreach ($xml as $item) {
echo '
<rdf:li rdf:resource="', $item['link'], '" />';
}
echo '
</rdf:Seq>
</items>
</channel>
';
dumpTags($xml, 1, 'item', $xml_format);
echo '
</rdf:RDF>';
} else {
echo '
<smf:xml-feed xmlns:smf="http://www.simplemachines.org/" xmlns="http://www.simplemachines.org/xml/', $_GET['sa'], '" xml:lang="', strtr($txt['lang_locale'], '_', '-'), '">';
// Dump out that associative array. Indent properly.... and use the right names for the base elements.
dumpTags($xml, 1, $subActions[$_GET['sa']][1], $xml_format);
echo '
</smf:xml-feed>';
}
obExit(false);
}
/**
* Outputs xml data representing recent information or a profile.
*
* What it does:
* - Can be passed 4 subactions which decide what is output:
* 'recent' for recent posts,
* 'news' for news topics,
* 'members' for recently registered members,
* 'profile' for a member's profile.
* - To display a member's profile, a user id has to be given. (;u=1) e.g. ?action=.xml;sa=profile;u=1;type=atom
* - Outputs an rss feed instead of a proprietary one if the 'type' $_GET
* parameter is 'rss' or 'rss2'.
* - Accessed via ?action=.xml
* - Does not use any templates, sub templates, or template layers.
*
* @uses Stats language file.
*/
public function action_showfeed()
{
global $board, $board_info, $context, $scripturl, $boardurl, $txt, $modSettings, $user_info;
global $forum_version, $cdata_override, $settings;
// If it's not enabled, die.
if (empty($modSettings['xmlnews_enable'])) {
obExit(false);
}
loadLanguage('Stats');
$txt['xml_rss_desc'] = replaceBasicActionUrl($txt['xml_rss_desc']);
// Default to latest 5. No more than whats defined in the ACP or 255
$limit = empty($modSettings['xmlnews_limit']) ? 5 : min($modSettings['xmlnews_limit'], 255);
$this->_limit = empty($_GET['limit']) || (int) $_GET['limit'] < 1 ? $limit : min((int) $_GET['limit'], $limit);
// Handle the cases where a board, boards, or category is asked for.
$this->_query_this_board = '1=1';
$context['optimize_msg'] = array('highest' => 'm.id_msg <= b.id_last_msg');
if (!empty($_REQUEST['c']) && empty($board)) {
$categories = array_map('intval', explode(',', $_REQUEST['c']));
if (count($categories) == 1) {
require_once SUBSDIR . '/Categories.subs.php';
$feed_title = categoryName($categories[0]);
$feed_title = ' - ' . strip_tags($feed_title);
}
require_once SUBSDIR . '/Boards.subs.php';
$boards_posts = boardsPosts(array(), $categories);
$total_cat_posts = array_sum($boards_posts);
$boards = array_keys($boards_posts);
if (!empty($boards)) {
$this->_query_this_board = 'b.id_board IN (' . implode(', ', $boards) . ')';
}
// Try to limit the number of messages we look through.
if ($total_cat_posts > 100 && $total_cat_posts > $modSettings['totalMessages'] / 15) {
$context['optimize_msg']['lowest'] = 'm.id_msg >= ' . max(0, $modSettings['maxMsgID'] - 400 - $this->_limit * 5);
}
} elseif (!empty($_REQUEST['boards'])) {
require_once SUBSDIR . '/Boards.subs.php';
$query_boards = array_map('intval', explode(',', $_REQUEST['boards']));
$boards_data = fetchBoardsInfo(array('boards' => $query_boards), array('selects' => 'detailed'));
// Either the board specified doesn't exist or you have no access.
$num_boards = count($boards_data);
if ($num_boards == 0) {
fatal_lang_error('no_board');
}
$total_posts = 0;
$boards = array_keys($boards_data);
foreach ($boards_data as $row) {
if ($num_boards == 1) {
$feed_title = ' - ' . strip_tags($row['name']);
}
$total_posts += $row['num_posts'];
}
$this->_query_this_board = 'b.id_board IN (' . implode(', ', $boards) . ')';
// The more boards, the more we're going to look through...
if ($total_posts > 100 && $total_posts > $modSettings['totalMessages'] / 12) {
$context['optimize_msg']['lowest'] = 'm.id_msg >= ' . max(0, $modSettings['maxMsgID'] - 500 - $this->_limit * 5);
}
} elseif (!empty($board)) {
require_once SUBSDIR . '/Boards.subs.php';
$boards_data = fetchBoardsInfo(array('boards' => $board), array('selects' => 'posts'));
$feed_title = ' - ' . strip_tags($board_info['name']);
$this->_query_this_board = 'b.id_board = ' . $board;
// Try to look through just a few messages, if at all possible.
if ($boards_data[$board]['num_posts'] > 80 && $boards_data[$board]['num_posts'] > $modSettings['totalMessages'] / 10) {
$context['optimize_msg']['lowest'] = 'm.id_msg >= ' . max(0, $modSettings['maxMsgID'] - 600 - $this->_limit * 5);
}
} else {
$this->_query_this_board = '{query_see_board}' . (!empty($modSettings['recycle_enable']) && $modSettings['recycle_board'] > 0 ? '
AND b.id_board != ' . $modSettings['recycle_board'] : '');
$context['optimize_msg']['lowest'] = 'm.id_msg >= ' . max(0, $modSettings['maxMsgID'] - 100 - $this->_limit * 5);
}
// If format isn't set, rss2 is default
$xml_format = isset($_GET['type']) && in_array($_GET['type'], array('rss', 'rss2', 'atom', 'rdf', 'webslice')) ? $_GET['type'] : 'rss2';
// List all the different types of data they can pull.
$subActions = array('recent' => array('action_xmlrecent'), 'news' => array('action_xmlnews'), 'members' => array('action_xmlmembers'), 'profile' => array('action_xmlprofile'));
// Easy adding of sub actions
call_integration_hook('integrate_xmlfeeds', array(&$subActions));
$subAction = isset($_GET['sa']) && isset($subActions[$_GET['sa']]) ? $_GET['sa'] : 'recent';
// Webslices doesn't do everything (yet? ever?) so for now only recent posts is allowed in that format
if ($xml_format == 'webslice' && $subAction != 'recent') {
$xml_format = 'rss2';
} elseif ($xml_format == 'webslice') {
$context['user'] += $user_info;
$cdata_override = true;
loadTemplate('Xml');
}
// We only want some information, not all of it.
$cachekey = array($xml_format, $_GET['action'], $this->_limit, $subAction);
foreach (array('board', 'boards', 'c') as $var) {
if (isset($_REQUEST[$var])) {
$cachekey[] = $_REQUEST[$var];
}
}
$cachekey = md5(serialize($cachekey) . (!empty($this->_query_this_board) ? $this->_query_this_board : ''));
$cache_t = microtime(true);
// Get the associative array representing the xml.
if (!empty($modSettings['cache_enable']) && (!$user_info['is_guest'] || $modSettings['cache_enable'] >= 3)) {
$xml = cache_get_data('xmlfeed-' . $xml_format . ':' . ($user_info['is_guest'] ? '' : $user_info['id'] . '-') . $cachekey, 240);
}
if (empty($xml)) {
$xml = $this->{$subActions[$subAction][0]}($xml_format);
if (!empty($modSettings['cache_enable']) && ($user_info['is_guest'] && $modSettings['cache_enable'] >= 3 || !$user_info['is_guest'] && microtime(true) - $cache_t > 0.2)) {
cache_put_data('xmlfeed-' . $xml_format . ':' . ($user_info['is_guest'] ? '' : $user_info['id'] . '-') . $cachekey, $xml, 240);
}
}
$feed_title = encode_special(strip_tags(un_htmlspecialchars($context['forum_name']) . (isset($feed_title) ? $feed_title : '')));
// This is an xml file....
@ob_end_clean();
if (!empty($modSettings['enableCompressedOutput'])) {
ob_start('ob_gzhandler');
} else {
ob_start();
}
if (isset($_REQUEST['debug'])) {
header('Content-Type: text/xml; charset=UTF-8');
} elseif ($xml_format == 'rss' || $xml_format == 'rss2' || $xml_format == 'webslice') {
header('Content-Type: application/rss+xml; charset=UTF-8');
} elseif ($xml_format == 'atom') {
header('Content-Type: application/atom+xml; charset=UTF-8');
} elseif ($xml_format == 'rdf') {
header('Content-Type: ' . (isBrowser('ie') ? 'text/xml' : 'application/rdf+xml') . '; charset=UTF-8');
}
// First, output the xml header.
echo '<?xml version="1.0" encoding="UTF-8"?' . '>';
// Are we outputting an rss feed or one with more information?
if ($xml_format == 'rss' || $xml_format == 'rss2') {
// Start with an RSS 2.0 header.
echo '
<rss version=', $xml_format == 'rss2' ? '"2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"' : '"0.92"', ' xml:lang="', strtr($txt['lang_locale'], '_', '-'), '">
<channel>
<title>', $feed_title, '</title>
<link>', $scripturl, '</link>
<description><![CDATA[', un_htmlspecialchars(strip_tags($txt['xml_rss_desc'])), ']]></description>
<generator>ElkArte</generator>
<ttl>30</ttl>
<image>
<url>', $settings['default_theme_url'], '/images/logo.png</url>
<title>', $feed_title, '</title>
<link>', $scripturl, '</link>
</image>';
// Output all of the associative array, start indenting with 2 tabs, and name everything "item".
dumpTags($xml, 2, 'item', $xml_format);
// Output the footer of the xml.
echo '
</channel>
</rss>';
} elseif ($xml_format == 'webslice') {
// Format specification http://msdn.microsoft.com/en-us/library/cc304073%28VS.85%29.aspx
// Known browsers to support webslices: IE8, IE9, Firefox with Webchunks addon.
// It uses RSS 2.
// We send a feed with recent posts, and alerts for PMs for logged in users
$context['recent_posts_data'] = $xml;
$context['can_pm_read'] = allowedTo('pm_read');
// This always has RSS 2
echo '
<rss version="2.0" xmlns:mon="http://www.microsoft.com/schemas/rss/monitoring/2007" xml:lang="', strtr($txt['lang_locale'], '_', '-'), '">
<channel>
<title>', $feed_title, ' - ', $txt['recent_posts'], '</title>
<link>', $scripturl, '?action=recent</link>
<description><![CDATA[', strip_tags($txt['xml_rss_desc']), ']]></description>
<item>
<title>', $feed_title, ' - ', $txt['recent_posts'], '</title>
<link>', $scripturl, '?action=recent</link>
<description><![CDATA[
', template_webslice_header_above(), '
', template_webslice_recent_posts(), '
]]></description>
</item>
</channel>
</rss>';
} elseif ($xml_format == 'atom') {
$url_parts = array();
foreach (array('board', 'boards', 'c') as $var) {
if (isset($_REQUEST[$var])) {
$url_parts[] = $var . '=' . (is_array($_REQUEST[$var]) ? implode(',', $_REQUEST[$var]) : $_REQUEST[$var]);
}
}
echo '
<feed xmlns="http://www.w3.org/2005/Atom">
<title>', $feed_title, '</title>
<link rel="alternate" type="text/html" href="', $scripturl, '" />
<link rel="self" type="application/rss+xml" href="', $scripturl, '?type=atom;action=.xml', !empty($url_parts) ? ';' . implode(';', $url_parts) : '', '" />
<id>', $scripturl, '</id>
<icon>', $boardurl, '/favicon.ico</icon>
<updated>', gmstrftime('%Y-%m-%dT%H:%M:%SZ'), '</updated>
<subtitle><![CDATA[', strip_tags(un_htmlspecialchars($txt['xml_rss_desc'])), ']]></subtitle>
<generator uri="http://www.elkarte.net" version="', strtr($forum_version, array('ElkArte' => '')), '">ElkArte</generator>
<author>
<name>', strip_tags(un_htmlspecialchars($context['forum_name'])), '</name>
</author>';
dumpTags($xml, 2, 'entry', $xml_format);
echo '
</feed>';
} else {
echo '
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://purl.org/rss/1.0/">
<channel rdf:about="', $scripturl, '">
<title>', $feed_title, '</title>
<link>', $scripturl, '</link>
<description><![CDATA[', strip_tags($txt['xml_rss_desc']), ']]></description>
<items>
<rdf:Seq>';
foreach ($xml as $item) {
echo '
<rdf:li rdf:resource="', $item['link'], '" />';
}
echo '
</rdf:Seq>
</items>
</channel>
';
dumpTags($xml, 1, 'item', $xml_format);
echo '
</rdf:RDF>';
}
obExit(false);
}
