*
* @link http://blogs.law.harvard.edu/tech/rss RSS 2.0 Specification
*
* @author Bernard Paques
* @author GnapZ
* @tester Pat
* @reference
* @license http://www.gnu.org/copyleft/lesser.txt GNU Lesser General Public License
*/
// common definitions and initial processing
include_once '../shared/global.php';
// ensure we only provide public content through newsfeeds
$context['users_without_teasers'] = 'Y';
// check network credentials, if any -- used by winamp and other media players
if ($user = Users::authenticate()) {
Surfer::empower($user['capability']);
}
// look for the id
$id = NULL;
if (isset($_REQUEST['id'])) {
$id = $_REQUEST['id'];
} elseif (isset($context['arguments'][0])) {
$id = $context['arguments'][0];
} elseif (Surfer::is_logged()) {
$id = Surfer::get_id();
}
$id = strip_tags($id);
// get the item from the database
$item = Users::get($id);
// associates can do what they want
if (Surfer::is_associate()) {
if (isset($_REQUEST['id'])) {
$id = $_REQUEST['id'];
} elseif (isset($context['arguments'][0])) {
$id = $context['arguments'][0];
}
$id = strip_tags($id);
// get the item from the database
$item = Sections::get($id);
// get the related anchor, if any
$anchor = NULL;
if (isset($item['anchor']) && $item['anchor']) {
$anchor = Anchors::get($item['anchor']);
}
// editors have associate-like capabilities
if (isset($item['id']) && Sections::is_assigned($item['id']) || is_object($anchor) && $anchor->is_assigned()) {
Surfer::empower();
}
// load the skin, maybe with a variant
load_skin('sections', $anchor, isset($item['options']) ? $item['options'] : '');
// stop crawlers
if (Surfer::is_crawler()) {
Safe::header('Status: 401 Unauthorized', TRUE, 401);
die(i18n::s('You are not allowed to perform this operation.'));
}
// page title
if (isset($item['title'])) {
$context['page_title'] = $item['title'];
}
// not found
if (!$item['id']) {
include '../error.php';
/**
* layout the newest articles
*
* caution: this function also updates page title directly, and this makes its call non-cacheable
*
* @param array the article
* @return string the rendered text
**/
function layout_newest($item)
{
global $context;
// get the related overlay, if any
$overlay = Overlay::load($item, 'article:' . $item['id']);
// get the anchor
$anchor = Anchors::get($item['anchor']);
// the url to view this item
$url = Articles::get_permalink($item);
// reset the rendering engine between items
Codes::initialize($url);
// build a title
if (is_object($overlay)) {
$title = Codes::beautify_title($overlay->get_text('title', $item));
} else {
$title = Codes::beautify_title($item['title']);
}
// title prefix & suffix
$text = $prefix = $suffix = '';
// flag articles updated recently
if ($context['site_revisit_after'] < 1) {
$context['site_revisit_after'] = 2;
}
$context['fresh'] = gmstrftime('%Y-%m-%d %H:%M:%S', mktime(0, 0, 0, date("m"), date("d") - $context['site_revisit_after'], date("Y")));
// link to permalink
if (Surfer::is_empowered()) {
$title = Skin::build_box_title($title, $url, i18n::s('Permalink'));
}
// signal articles to be published
if ($item['publish_date'] <= NULL_DATE) {
$prefix .= DRAFT_FLAG;
} else {
if ($item['publish_date'] > NULL_DATE && $item['publish_date'] > $context['now']) {
$prefix .= DRAFT_FLAG;
}
}
// signal restricted and private articles
if ($item['active'] == 'N') {
$prefix .= PRIVATE_FLAG . ' ';
} elseif ($item['active'] == 'R') {
$prefix .= RESTRICTED_FLAG . ' ';
}
// signal locked articles
if (isset($item['locked']) && $item['locked'] == 'Y' && Articles::is_owned($item, $anchor)) {
$suffix .= LOCKED_FLAG;
}
// flag expired article
if ($item['expiry_date'] > NULL_DATE && $item['expiry_date'] <= $context['now']) {
$suffix .= EXPIRED_FLAG;
}
// update page title directly
$text .= Skin::build_block($prefix . $title . $suffix, 'title');
// if this article has a specific icon, use it
if ($item['icon_url']) {
$icon = $item['icon_url'];
} elseif ($item['anchor'] && ($anchor = Anchors::get($item['anchor']))) {
$icon = $anchor->get_icon_url();
}
// if we have a valid image
if (preg_match('/(.gif|.jpg|.jpeg|.png)$/i', $icon)) {
// fix relative path
if (!preg_match('/^(\\/|http:|https:|ftp:)/', $icon)) {
$icon = $context['url_to_root'] . $icon;
}
// flush the image on the right
$text .= '<img src="' . $icon . '" class="right_image" alt="" />';
}
// article rating, if the anchor allows for it
if (!is_object($anchor) || !$anchor->has_option('without_rating')) {
// report on current rating
$label = '';
if ($item['rating_count']) {
$label = Skin::build_rating_img((int) round($item['rating_sum'] / $item['rating_count'])) . ' ';
}
$label .= i18n::s('Rate this page');
// allow for rating
$text .= Skin::build_link(Articles::get_url($item['id'], 'like'), $label, 'basic');
}
// the introduction text, if any
if (is_object($overlay)) {
$text .= Skin::build_block($overlay->get_text('introduction', $item), 'introduction');
} else {
$text .= Skin::build_block($item['introduction'], 'introduction');
}
// insert overlay data, if any
if (is_object($overlay)) {
$text .= $overlay->get_text('view', $item);
}
// the beautified description, which is the actual page body
if ($item['description']) {
// use adequate label
if (is_object($overlay) && ($label = $overlay->get_label('description'))) {
$text .= Skin::build_block($label, 'title');
}
$text .= Skin::build_block($item['description'], 'description', '', $item['options']);
}
//
// list related files
//
// if this surfer is an editor of this article, show hidden files as well
if (Articles::is_assigned($item['id']) || is_object($anchor) && $anchor->is_assigned()) {
Surfer::empower();
}
// build a complete box
$box['bar'] = array();
$box['text'] = '';
// count the number of files in this article
if ($count = Files::count_for_anchor('article:' . $item['id'])) {
if ($count > 20) {
$box['bar'] += array('_count' => sprintf(i18n::ns('%d file', '%d files', $count), $count));
}
// list files by date (default) or by title (option files_by_title)
if (Articles::has_option('files_by', $anchor, $item) == 'title') {
$items = Files::list_by_title_for_anchor('article:' . $item['id'], 0, FILES_PER_PAGE, 'article:' . $item['id']);
} else {
$items = Files::list_by_date_for_anchor('article:' . $item['id'], 0, FILES_PER_PAGE, 'article:' . $item['id']);
}
if (is_array($items)) {
$box['text'] .= Skin::build_list($items, 'decorated');
}
// navigation commands for files
$prefix = Articles::get_url($item['id'], 'navigate', 'files');
$box['bar'] += Skin::navigate($url, $prefix, $count, FILES_PER_PAGE, 0);
// the command to post a new file, if allowed
if (Files::allow_creation($item, $anchor, 'article')) {
$link = 'files/edit.php?anchor=' . urlencode('article:' . $item['id']);
$box['bar'] += array($link => i18n::s('Add a file'));
}
if (is_array($box['bar'])) {
$box['text'] .= Skin::build_list($box['bar'], 'menu_bar');
}
}
// actually render the html for this box
if ($box['text']) {
$text .= Skin::build_box(i18n::s('Files'), $box['text'], 'header1', 'files');
}
//
// bottom page menu
//
// discuss this page, if the index page can be commented, and comments are accepted at the article level
if (Comments::allow_creation($item, $anchor)) {
$this->menu[] = Skin::build_link(Comments::get_url('article:' . $item['id'], 'comment'), i18n::s('Post a comment'), 'span');
}
// info on related comments
if ($count = Comments::count_for_anchor('article:' . $item['id'])) {
$this->menu[] = Skin::build_link(Comments::get_url('article:' . $item['id'], 'list'), sprintf(i18n::ns('%d comment', '%d comments', $count), $count), 'span');
}
// new links are accepted at the index page and at the article level
if (Links::allow_trackback()) {
$this->menu[] = Skin::build_link('links/trackback.php?anchor=' . urlencode('article:' . $item['id']), i18n::s('Reference this page'), 'span');
}
// info on related links
if ($count = Links::count_for_anchor('article:' . $item['id'])) {
$this->menu[] = Skin::build_link($url . '#_attachments', sprintf(i18n::ns('%d link', '%d links', $count), $count), 'span');
}
// new files are accepted at the index page and at the article level
if (is_object($anchor) && $anchor->has_option('with_files') && !($anchor->has_option('no_files') || preg_match('/\\bno_files\\b/i', $item['options']))) {
// add a file
if (Files::allow_creation($item, $anchor, 'article')) {
if ($context['with_friendly_urls'] == 'Y') {
$link = 'files/edit.php/article/' . $item['id'];
} else {
$link = 'files/edit.php?anchor=' . urlencode('article:' . $item['id']);
}
$this->menu[] = Skin::build_link($link, i18n::s('Add a file'), 'span');
}
}
// modify this page
if (Surfer::is_empowered()) {
$this->menu[] = Skin::build_link(Articles::get_url($item['id'], 'edit'), i18n::s('Edit'), 'span');
}
// view permalink
if (Surfer::is_empowered()) {
$this->menu[] = Skin::build_link($url, i18n::s('Permalink'), 'span');
}
// insert overlay data, if any
if (is_object($overlay)) {
$text .= $overlay->get_text('trailer', $item);
}
// add trailer information from this item, if any
if (isset($item['trailer']) && trim($item['trailer'])) {
$text .= Codes::beautify($item['trailer']);
}
// returned the formatted content
return $text;
}
}
// change default behavior
if (isset($item['id']) && is_object($behaviors) && !$behaviors->allow('articles/view.php', 'article:' . $item['id'])) {
$permitted = FALSE;
} elseif ($cur_article->allows('access')) {
$permitted = TRUE;
} else {
$permitted = FALSE;
}
// owners can do what they want
if ($cur_article->allows('modification')) {
Surfer::empower();
} elseif (Surfer::is_logged() && is_object($anchor) && $anchor->is_assigned()) {
Surfer::empower('S');
} elseif (isset($item['id']) && $cur_article->is_assigned() && Surfer::is_logged()) {
Surfer::empower('S');
}
// is the article on user watch list?
$in_watch_list = FALSE;
if (isset($item['id']) && Surfer::get_id()) {
$in_watch_list = Members::check('article:' . $item['id'], 'user:'******'id']) && !$zoom_type && Surfer::is_empowered() && Versions::count_for_anchor('article:' . $item['id'])) {
$has_versions = TRUE;
}
// load the skin, maybe with a variant
load_skin('article', $anchor, isset($item['options']) ? $item['options'] : '');
// clear the tab we are in
if (is_object($anchor)) {
if (isset($_REQUEST['id'])) {
$id = $_REQUEST['id'];
} elseif (isset($context['arguments'][0])) {
$id = $context['arguments'][0];
}
$id = strip_tags($id);
// get the item from the database
$item = Sections::get($id);
// get the related anchor, if any
$anchor = NULL;
if (isset($item['anchor']) && $item['anchor']) {
$anchor = Anchors::get($item['anchor']);
}
// editors have associate-like capabilities
if (Surfer::is_empowered('M') && (isset($item['id']) && isset($user['id']) && Sections::is_assigned($item['id'], $user['id'])) || is_object($anchor) && $anchor->is_assigned()) {
Surfer::empower('A');
}
// load a skin, maybe with a variant
load_skin('sections', $anchor, isset($item['options']) ? $item['options'] : '');
// path to this page
$context['path_bar'] = array('sections/' => i18n::s('Site map'));
// page title
$context['page_title'] = i18n::s('RSS feed');
// not found
if (!isset($item['id']) || !$item['id']) {
include '../error.php';
// access denied
} elseif (!Sections::allow_access($item, $anchor)) {
// give anonymous surfers a chance for HTTP authentication
if (!Surfer::is_logged()) {
Safe::header('WWW-Authenticate: Basic realm="' . utf8::to_iso8859($context['site_name']) . '"');
