}
if (!$uservalidated) {
pcast_rss_error('rsserrorauth');
}
// OK, the use should be able to see the feed, generate the .pcast file
$pcast = $DB->get_record('pcast', array('id' => $pcastid), '*', MUST_EXIST);
// Check to se if RSS is enabled
// NOTE: cannot use the rss_enabled_for_mod() function due to the functions internals and naming conflicts
if ($pcast->rssepisodes == 0 || empty($pcast->rssepisodes)) {
pcast_rss_error();
}
$sql = pcast_rss_get_sql($pcast);
$filename = rss_get_file_name($pcast, $sql);
//Append the GroupID to the end of the filename
$filename .= '_' . $groupid;
$cachedfilepath = pcast_rss_get_file_full_name('mod_pcast', $filename);
// Figure out the URL for the podcast based on the user info
$args = $pcast->id . '/' . $userid . '/' . $groupid;
$url = new moodle_url(rss_get_url($context->id, $userid, 'pcast', $args));
// Build the .pcast file
$rss = pcast_build_pcast_file($pcast, $url);
//Save the XML contents to file.
$status = pcast_rss_save_file('mod_pcast', $filename, $rss);
if (!$status) {
$cachedfilepath = null;
}
// Check that file exists
if (empty($cachedfilepath) || !file_exists($cachedfilepath)) {
die($cachedfilepath);
pcast_rss_error();
}
/**
* This function saves to file the rss feed specified in the parameters
*
* @global object
* @param string $componentname the module name ie forum. Used to create a cache directory.
* @param string $filename the name of the file to be created ie "1234"
* @param string $contents the data to be written to the file
*/
function pcast_rss_save_file($componentname, $filename, $contents, $expandfilename = true)
{
global $CFG;
$status = true;
if (!($basedir = make_upload_directory('cache/rss/' . $componentname))) {
//Cannot be created, so error
$status = false;
}
if ($status) {
$fullfilename = $filename;
if ($expandfilename) {
$fullfilename = pcast_rss_get_file_full_name($componentname, $filename);
}
$rss_file = fopen($fullfilename, "w");
if ($rss_file) {
$status = fwrite($rss_file, $contents);
fclose($rss_file);
} else {
$status = false;
}
}
return $status;
}
