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Refactor showRSS, and make it use the RSS template

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This commit is contained in:
ArthurHoaro 2016-03-12 14:38:06 +01:00
parent 69c474b966
commit e67712ba0f
1 changed files with 66 additions and 52 deletions
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118
index.php
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@ -683,7 +683,7 @@ public function render404($message='The page you are trying to reach does not ex
// ------------------------------------------------------------------------------------------
// Output the last N links in RSS 2.0 format.
function showRSS()
function showRSS($pageBuilder, $linkDB)
{
header('Content-Type: application/rss+xml; charset=utf-8');
@ -693,11 +693,11 @@ function showRSS()
$usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
// Cache system
$query = $_SERVER["QUERY_STRING"];
$query = $_SERVER['QUERY_STRING'];
$cache = new CachedPage(
$GLOBALS['config']['PAGECACHE'],
page_url($_SERVER),
startsWith($query,'do=rss') && !isLoggedIn()
startsWith($query, 'do=rss') && !isLoggedIn()
);
$cached = $cache->cachedVersion();
if (! empty($cached)) {
@ -705,32 +705,23 @@ function showRSS()
exit;
}
// If cached was not found (or not usable), then read the database and build the response:
$LINKSDB = new LinkDB(
$GLOBALS['config']['DATASTORE'],
isLoggedIn(),
$GLOBALS['config']['HIDE_PUBLIC_LINKS'],
$GLOBALS['redirector']
);
// Read links from database (and filter private links if user it not logged in).
// Optionally filter the results:
$searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
$searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
if (! empty($searchtags) && ! empty($searchterm)) {
$linksToDisplay = $LINKSDB->filter(
$linksToDisplay = $linkDB->filter(
LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
array($searchtags, $searchterm)
);
}
elseif ($searchtags) {
$linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
$linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
}
elseif ($searchterm) {
$linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
$linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
}
else {
$linksToDisplay = $LINKSDB;
$linksToDisplay = $linkDB;
}
$nblinksToDisplay = 50; // Number of links to display.
@ -739,50 +730,63 @@ function showRSS()
$nblinksToDisplay = $_GET['nb'] == 'all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
}
$pageaddr = escape(index_url($_SERVER));
echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">';
echo '<channel><title>'.$GLOBALS['title'].'</title><link>'.$pageaddr.'</link>';
echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n";
if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
{
echo '<!-- PubSubHubbub Discovery -->';
echo '<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />';
echo '<link rel="self" href="'.$pageaddr.'?do=rss" xmlns="http://www.w3.org/2005/Atom" />';
echo '<!-- End Of PubSubHubbub Discovery -->';
$keys = array();
foreach ($linksToDisplay as $key=>$value) {
$keys[] = $key; // No, I can't use array_keys().
}
$i=0;
$keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
while ($i<$nblinksToDisplay && $i<count($keys))
$pageaddr = escape(index_url($_SERVER));
$latestDate = '';
$i = 0;
$linkDisp = array();
while ($i < $nblinksToDisplay && $i < count($keys))
{
$link = $linksToDisplay[$keys[$i]];
$guid = $pageaddr.'?'.smallHash($link['linkdate']);
$date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
$absurl = $link['url'];
if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
if ($usepermalinks===true)
echo '<item><title>'.$link['title'].'</title><guid isPermaLink="true">'.$guid.'</guid><link>'.$guid.'</link>';
else
echo '<item><title>'.$link['title'].'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>';
if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) {
echo '<pubDate>'.escape($date->format(DateTime::RSS))."</pubDate>\n";
$link['guid'] = $pageaddr. '?' .smallHash($link['linkdate']);
// Check for both signs of a note: starting with ? and 7 chars long.
if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
$link['url'] = $pageaddr . $link['url'];
}
if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
{
foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.$pageaddr.'">'.$tag.'</category>'."\n"; }
if ($usepermalinks) {
$permalink = '<a href="'. $link['url'] .'" title="Direct link">Direct link</a>';
} else {
$permalink = '<a href="'. $link['guid'] .'" title="Permalink">Permalink</a>';
}
$link['description'] = format_description($link['description']) . PHP_EOL .'<br>&#8212; '. $permalink;
// Add permalink in description
$descriptionlink = '(<a href="'.$guid.'">Permalink</a>)';
// If user wants permalinks first, put the final link in description
if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)';
if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink;
echo '<description><![CDATA['.
format_description($link['description'], $GLOBALS['redirector']) .
$descriptionlink . ']]></description>' . "\n</item>\n";
$date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
$link['iso_date'] = $date->format(DateTime::RSS);
$latestDate = max($latestDate, $link['iso_date']);
$taglist = array_filter(explode(' ', $link['tags']), 'strlen');
uasort($taglist, 'strcasecmp');
$link['taglist'] = $taglist;
$linkDisp[$keys[$i]] = $link;
$i++;
}
echo '</channel></rss><!-- Cached version of '.escape(page_url($_SERVER)).' -->';
$data = array();
if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) {
$data['pubsubhub_url'] = escape($GLOBALS['config']['PUBSUBHUB_URL']);
}
// Use the locale do define the language, if available.
$locale = strtolower(setlocale(LC_COLLATE, 0));
if (! empty($locale) && preg_match('/^\w{2}[_\-]\w{2}/', $locale)) {
$data['language'] = str_replace('_', '-', substr($locale, 0, 5));
} else {
$data['language'] = 'en-en';
}
$data['last_update'] = escape($latestDate);
$data['show_dates'] = !$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn();
// Remove starting slash from REQUEST_URI.
$data['self_link'] = escape($pageaddr . substr($_SERVER['REQUEST_URI'], 1));
$data['index_url'] = escape($pageaddr);
$data['usepermalinks'] = $usepermalinks;
$data['links'] = $linkDisp;
$pageBuilder->assignAll($data);
$pageBuilder->renderPage('feed.rss', false);
$cache->cache(ob_get_contents());
ob_end_flush();
exit;
@ -889,6 +893,12 @@ function showATOM($pageBuilder, $linkDB)
$data['usepermalinks'] = $usepermalinks;
$data['links'] = $linkDisp;
$pluginManager = PluginManager::getInstance();
$pluginManager->executeHooks('render_feed', $data, array(
'loggedin' => isLoggedIn(),
'target' => Router::$PAGE_ATOM,
));
$pageBuilder->assignAll($data);
$pageBuilder->renderPage('feed.atom', false);
$cache->cache(ob_get_contents());
@ -1277,6 +1287,11 @@ function renderPage()
showATOM($PAGE, $LINKSDB);
}
// RSS feed.
if ($targetPage == Router::$PAGE_RSS) {
showRSS($PAGE, $LINKSDB);
}
// Display openseach plugin (XML)
if ($targetPage == Router::$PAGE_OPENSEARCH) {
header('Content-Type: application/xml; charset=utf-8');
@ -2601,7 +2616,6 @@ function resizeImage($filepath)
}
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; }
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; }
if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
renderPage();