function lightboxgallery_rss_feed($gallery)
{
global $CFG;
$result = "";
$images = lightboxgallery_directory_images($CFG->dataroot . '/' . $gallery->course . '/' . $gallery->folder);
$captions = array();
if ($cobjs = get_records_select('lightboxgallery_image_meta', "metatype = 'caption' AND gallery = {$gallery->id}")) {
foreach ($cobjs as $cobj) {
$captions[$cobj->image] = $cobj->description;
}
}
if (!empty($images)) {
$webroot = lightboxgallery_get_image_url($gallery->id);
$dataroot = $CFG->dataroot . '/' . $gallery->course . '/' . $gallery->folder;
$result .= "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n";
$result .= "<rss version=\"2.0\" xmlns:media=\"http://search.yahoo.com/mrss\" xmlns:atom=\"http://www.w3.org/2005/Atom\">";
$result .= rss_start_tag('channel', 1, true);
$result .= rss_full_tag('title', 2, false, strip_tags(format_string($gallery->name, true)));
$result .= rss_full_tag('link', 2, false, $CFG->wwwroot . '/mod/lightboxgallery/view.php?l=' . $gallery->id);
$result .= rss_full_tag('description', 2, false, format_string($gallery->description, true));
$result .= rss_start_tag('image', 2, true);
$result .= rss_full_tag('url', 3, false, $CFG->pixpath . '/i/rsssitelogo.gif');
$result .= rss_full_tag('title', 3, false, 'moodle');
$result .= rss_full_tag('link', 3, false, $CFG->wwwroot);
$result .= rss_full_tag('width', 3, false, '140');
$result .= rss_full_tag('height', 3, false, '35');
$result .= rss_end_tag('image', 2, true);
$counter = 1;
foreach ($images as $image) {
$description = isset($captions[$image]) ? $captions[$image] : $image;
$result .= rss_start_tag('item', 2, true);
$result .= rss_full_tag('title', 3, false, strip_tags($image));
$result .= rss_full_tag('link', 3, false, $webroot . '/' . $image);
$result .= rss_full_tag('guid', 3, false, 'img' . $counter);
$result .= rss_full_tag('media:description', 3, false, $description);
$result .= rss_full_tag('media:thumbnail', 3, false, '', array('url' => lightboxgallery_get_image_url($gallery->id, $image, true)));
$result .= rss_full_tag('media:content', 3, false, '', array('url' => $webroot . '/' . $image, 'type' => mime_content_type($dataroot . '/' . $image)));
$result .= rss_end_tag('item', 2, true);
$counter++;
}
$result .= rss_standard_footer();
}
return $result;
}
/**
* Generates the rss XML code for every item passed in the array
*
* item->title: The title of the item
* item->author: The author of the item. Optional !!
* item->pubdate: The pubdate of the item
* item->link: The link url of the item
* item->description: The content of the item
*
* @param array $items an array of item objects
* @return bool|string the rss XML code for every item passed in the array
*/
function rss_add_items($items)
{
global $CFG;
$result = '';
if (!empty($items)) {
foreach ($items as $item) {
$result .= rss_start_tag('item', 2, true);
//Include the category if exists (some rss readers will use it to group items)
if (isset($item->category)) {
$result .= rss_full_tag('category', 3, false, $item->category);
}
if (isset($item->tags)) {
$attributes = array();
if (isset($item->tagscheme)) {
$attributes['domain'] = s($item->tagscheme);
}
foreach ($item->tags as $tag) {
$result .= rss_full_tag('category', 3, false, $tag, $attributes);
}
}
$result .= rss_full_tag('title', 3, false, strip_tags($item->title));
$result .= rss_full_tag('link', 3, false, $item->link);
$result .= rss_add_enclosures($item);
$result .= rss_full_tag('pubDate', 3, false, gmdate('D, d M Y H:i:s', $item->pubdate) . ' GMT');
# MDL-12563
//Include the author if exists
if (isset($item->author) && !empty($item->author)) {
//$result .= rss_full_tag('author',3,false,$item->author);
//We put it in the description instead because it's more important
//for moodle than most other feeds, and most rss software seems to ignore
//the author field ...
$item->description = get_string('byname', '', $item->author) . '. <p>' . $item->description . '</p>';
}
$result .= rss_full_tag('description', 3, false, $item->description);
$result .= rss_full_tag('guid', 3, false, $item->link, array('isPermaLink' => 'true'));
$result .= rss_end_tag('item', 2, true);
}
} else {
$result = false;
}
return $result;
}
function lightboxgallery_rss_header($title = null, $link = null, $description = null)
{
global $CFG, $USER, $OUTPUT;
$status = true;
$result = "";
$site = get_site();
if ($status) {
// Calculate title, link and description.
if (empty($title)) {
$title = format_string($site->fullname);
}
if (empty($link)) {
$link = $CFG->wwwroot;
}
if (empty($description)) {
$description = $site->summary;
}
// XML headers.
$result .= "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
$result .= "<rss version=\"2.0\" xmlns:media=\"http://search.yahoo.com/mrss\"" . "xmlns:atom=\"http://www.w3.org/2005/Atom\">\n";
// Open the channel.
$result .= rss_start_tag('channel', 1, true);
// Write channel info.
$result .= rss_full_tag('title', 2, false, strip_tags($title));
$result .= rss_full_tag('link', 2, false, $link);
$result .= rss_full_tag('description', 2, false, $description);
$result .= rss_full_tag('generator', 2, false, 'Moodle');
if (!empty($USER->lang)) {
$result .= rss_full_tag('language', 2, false, substr($USER->lang, 0, 2));
}
$today = getdate();
$result .= rss_full_tag('copyright', 2, false, '© ' . $today['year'] . ' ' . format_string($site->fullname));
/*
if (!empty($USER->email)) {
$result .= rss_full_tag('managingEditor', 2, false, fullname($USER));
$result .= rss_full_tag('webMaster', 2, false, fullname($USER));
}
*/
// Write image info.
$rsspix = $OUTPUT->pix_url('i/rsssitelogo');
// Write the info.
$result .= rss_start_tag('image', 2, true);
$result .= rss_full_tag('url', 3, false, $rsspix);
$result .= rss_full_tag('title', 3, false, 'moodle');
$result .= rss_full_tag('link', 3, false, $CFG->wwwroot);
$result .= rss_full_tag('width', 3, false, '140');
$result .= rss_full_tag('height', 3, false, '35');
$result .= rss_end_tag('image', 2, true);
}
if (!$status) {
return false;
} else {
return $result;
}
}
/**
* Builds the .pcast file with the users RSS token
* @param object $pcast
* @param string $url
* @return string
*/
function pcast_build_pcast_file($pcast, $url)
{
//xml headers
$result = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
$result .= "<!DOCTYPE pcast PUBLIC \"-//Apple Computer//DTD PCAST 1.0//EN\" \"http://www.itunes.com/DTDs/pcast-1.0.dtd\">\n";
$result .= rss_start_tag('pcast version="1.0"', 1, true);
$result .= rss_start_tag('channel', 1, true);
$result .= rss_start_tag('link rel="feed" type="application/rss+xml" href="' . $url . '" /', 2, true);
$result .= rss_full_tag('title', 2, false, $pcast->name);
$category = pcast_rss_category_lookup($pcast);
if (isset($category->top->name) && !empty($category->top->name)) {
$result .= rss_full_tag('category', 2, false, $category->top->name);
}
if (isset($category->nested->name) && !empty($category->nested->name)) {
$result .= rss_full_tag('category', 2, false, $category->nested->name);
}
if (isset($pcast->subtitle) && !empty($category->subtitle)) {
$result .= rss_full_tag('subtitle', 2, false, $pcast->subtitle);
}
$result .= rss_end_tag('channel', 1, true);
$result .= rss_end_tag('pcast', 1, true);
return $result;
}
