/**
* Generate a feed (ATOM 1.0 or RSS 2.0 using Zend\Feed\Writer\Feed
*
* @param string $section Tiki feature the feed is related to
* @param string $uniqueid
* @param string $feed_version DEPRECATED
* @param array $changes the content that will be used to generate the feed
* @param string $itemurl base url for items (e.g. "tiki-view_blog_post.php?postId=%s")
* @param string $urlparam
* @param string $id name of the id field used to identify each feed item (e.g. "postId")
* @param string $title title for the feed
* @param string $titleId name of the key in the $changes array with the title of each item
* @param string $desc description for the feed
* @param string $descId name of the key in the $changes array with the description of each item
* @param string $dateId name of the key in the $changes array with the date of each item
* @param string $authorId name of the key in the $changes array with the author of each item
* @param bool $fromcache if true recover the feed from cache
*
* @return array the generated feed
*/
function generate_feed($section, $uniqueid, $feed_version, $changes, $itemurl, $urlparam, $id, $title, $titleId, $desc, $descId, $dateId, $authorId, $fromcache = false)
{
global $tiki_p_admin, $prefs;
$userlib = TikiLib::lib('user');
$tikilib = TikiLib::lib('tiki');
$smarty = TikiLib::lib('smarty');
// both title and description fields cannot be null
if (empty($title) || empty($desc)) {
$msg = tra('The fields title and description are mandatory to generate a feed.');
if ($tiki_p_admin) {
$msg .= ' ' . tra('To fix this error go to Admin -> Feeds.');
} else {
$msg .= ' ' . tra('Please contact the site administrator and ask him to fix this error');
}
$smarty->assign('msg', $msg);
$smarty->display('error.tpl');
die;
}
$feed_format = $this->get_current_feed_format();
$feed_format_name = $this->get_current_feed_format_name();
if ($prefs['feed_cache_time'] < 1) {
$fromcache = false;
}
// only get cache data if rss cache is enabled
if ($fromcache) {
$output = $this->get_from_cache($uniqueid, $feed_format);
if ($output['data'] != 'EMPTY') {
return $output;
}
}
$urlarray = parse_url($_SERVER["REQUEST_URI"]);
$rawPath = str_replace('\\', '/', dirname($urlarray["path"]));
$URLPrefix = $tikilib->httpPrefix() . $rawPath;
if ($rawPath != "/") {
$URLPrefix .= "/";
// Append a slash unless Tiki is in the document root. dirname() removes a slash except in that case.
}
if (isset($prefs['feed_' . $section . '_index']) && $prefs['feed_' . $section . '_index'] != '') {
$feedLink = $prefs['feed_' . $section . '_index'];
} else {
$feedLink = htmlspecialchars($tikilib->httpPrefix() . $_SERVER["REQUEST_URI"]);
}
$img = htmlspecialchars($URLPrefix . $prefs['feed_img']);
$title = htmlspecialchars($title);
$desc = htmlspecialchars($desc);
$read = $URLPrefix . $itemurl;
$feed = new Zend\Feed\Writer\Feed();
$feed->setTitle($title);
$feed->setDescription($desc);
if (!empty($prefs['feed_language'])) {
$feed->setLanguage($prefs['feed_language']);
}
$feed->setLink($tikilib->tikiUrl(''));
$feed->setFeedLink($feedLink, $feed_format_name);
$feed->setDateModified($tikilib->now);
if ($feed_format_name == 'atom') {
$author = array();
if (!empty($prefs['feed_atom_author_name'])) {
$author['name'] = $prefs['feed_atom_author_name'];
}
if (!empty($prefs['feed_atom_author_email'])) {
$author['email'] = $prefs['feed_atom_author_email'];
}
if (!empty($prefs['feed_atom_author_url'])) {
$author['url'] = $prefs['feed_atom_author_url'];
}
if (!empty($author)) {
if (empty($author['name'])) {
$msg = tra('If you set feed author email or URL, you must set feed author name.');
$smarty->assign('msg', $msg);
$smarty->display('error.tpl');
die;
}
$feed->addAuthor($author);
}
} else {
$authors = array();
if (!empty($prefs['feed_rss_editor_email'])) {
$authors['name'] = $prefs['feed_rss_editor_email'];
}
if (!empty($prefs['feed_rss_webmaster_email'])) {
$authors['name'] = $prefs['feed_rss_webmaster_email'];
}
if (!empty($authors)) {
$feed->addAuthors(array($authors));
}
}
if (!empty($prefs['feed_img'])) {
$image = array();
$image['uri'] = $tikilib->tikiUrl($prefs['feed_img']);
$image['title'] = tra('Feed logo');
$image['link'] = $tikilib->tikiUrl('');
$feed->setImage($image);
}
foreach ($changes["data"] as $data) {
$item = $feed->createEntry();
$item->setTitle($data[$titleId]);
if (isset($data['sefurl'])) {
$item->setLink($URLPrefix . $data['sefurl']);
} elseif ($urlparam != '') {
// 2 parameters to replace
$item->setlink(sprintf($read, urlencode($data["{$id}"]), urlencode($data["{$urlparam}"])));
} else {
$item->setLink(sprintf($read, urlencode($data["{$id}"])));
}
if (isset($data[$descId]) && $data[$descId] != '') {
$item->setDescription($data[$descId]);
}
$item->setDateCreated($data[$dateId]);
$item->setDateModified($data[$dateId]);
if ($authorId != '' && $prefs['feed_' . $section . '_showAuthor'] == 'y') {
$author = $this->process_item_author($data[$authorId]);
$item->addAuthor($author);
}
$feed->addEntry($item);
}
$data = $feed->export($feed_format_name);
$this->put_to_cache($uniqueid, $feed_format, $data);
$output = array();
$output["data"] = $data;
$output["content-type"] = 'application/xml';
return $output;
}