function generatePodcastFeed($outputInFile, $category, $manualRegeneration)
{
//include functions and variables in config.php
include "core/includes.php";
//// Set custom web url (shown in iTunes Store), if specified in config.php
if (isset($feed_iTunes_LINKS_Website) and $feed_iTunes_LINKS_Website != NULL) {
$podcastWebHomePage = $feed_iTunes_LINKS_Website;
} else {
$podcastWebHomePage = $url;
}
//// Define feed filename
$feedfilename = $absoluteurl . $feed_dir . "feed.xml";
//// Rewrite the language var to adhere to ISO639
$feed_language = languageISO639($feed_language);
##### Clean categories strings
#Depurate feed content according to iTunes specifications
$itunes_category[0] = depurateContent($itunes_category[0]);
$itunes_category[1] = depurateContent($itunes_category[1]);
$itunes_category[2] = depurateContent($itunes_category[2]);
//If a different URL is specified in config.php
if (isset($feed_URL_replace) and $feed_URL_replace != NULL) {
$feed_url = $feed_URL_replace;
} else {
$feed_url = $url . $feed_dir . "feed.xml";
}
//iTunes Cover art (jpg or png)
if (file_exists($absoluteurl . $img_dir . 'itunes_image.jpg')) {
$podcastCoverArt = $url . $img_dir . 'itunes_image.jpg';
} else {
if (file_exists($absoluteurl . $img_dir . 'itunes_image.png')) {
$podcastCoverArt = $url . $img_dir . 'itunes_image.png';
} else {
$podcastCoverArt = "";
}
}
//RSS FEED HEADER
$head_feed = '<?xml version="1.0" encoding="' . $feed_encoding . '"?>
<!-- generator="Podcast Generator ' . $podcastgen_version . '" -->
<rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xml:lang="' . $feed_language . '" version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
<channel>
<title>' . $podcast_title . '</title>
<link>' . $podcastWebHomePage . '</link>
<atom:link href="' . $feed_url . '" rel="self" type="application/rss+xml" />
<description>' . $podcast_description . '</description>
<generator>Podcast Generator ' . $podcastgen_version . ' - http://podcastgen.sourceforge.net</generator>
<lastBuildDate>' . date("r") . '</lastBuildDate>
<language>' . $feed_language . '</language>
<copyright>' . $copyright . '</copyright>
<itunes:image href="' . $podcastCoverArt . '" />
<image>
<url>' . $podcastCoverArt . '</url>
<title>' . $podcast_title . '</title>
<link>' . $podcastWebHomePage . '</link>
</image>
<itunes:summary>' . $podcast_description . '</itunes:summary>
<itunes:subtitle>' . $podcast_subtitle . '</itunes:subtitle>
<itunes:author>' . $author_name . '</itunes:author>
<itunes:owner>
<itunes:name>' . $author_name . '</itunes:name>
<itunes:email>' . $author_email . '</itunes:email>
</itunes:owner>
<itunes:explicit>' . $explicit_podcast . '</itunes:explicit>
';
//// iTunes categories (and subcategories, which are separated by :)
//category 1
if ($itunes_category[0] != NULL) {
$tmpcat = explode(":", $itunes_category[0]);
$head_feed .= '
<itunes:category text="' . $tmpcat[0] . '">';
//Sub Category
if (isset($tmpcat[1]) and $tmpcat[1] != NULL) {
$head_feed .= '<itunes:category text="' . $tmpcat[1] . '" />';
}
$head_feed .= '</itunes:category>
';
}
//end category 1
//category 2
if ($itunes_category[1] != NULL) {
$tmpcat = explode(":", $itunes_category[1]);
$head_feed .= '<itunes:category text="' . $tmpcat[0] . '">';
//Sub Category
if (isset($tmpcat[1]) and $tmpcat[1] != NULL) {
$head_feed .= '<itunes:category text="' . $tmpcat[1] . '" />';
}
$head_feed .= '</itunes:category>
';
}
//end category 2
//category 3
if ($itunes_category[2] != NULL) {
$tmpcat = explode(":", $itunes_category[2]);
$head_feed .= '<itunes:category text="' . $tmpcat[0] . '">';
//Sub Category
if (isset($tmpcat[1]) and $tmpcat[1] != NULL) {
$head_feed .= '<itunes:category text="' . $tmpcat[1] . '" />';
}
$head_feed .= '</itunes:category>
';
}
//end category 3
//// List all the items (i.e. podcast episodes)
// Open podcast directory
$fileNamesList = readMediaDir($absoluteurl, $upload_dir);
$episodes_feed = NULL;
//define variable
if (!empty($fileNamesList)) {
// If media directory contains files
$episodesCounter = 0;
//set counter to zero
// Loop through each file in the media directory
foreach ($fileNamesList as $singleFileName) {
//Limit episodes in the feed (from config.php)
if ($episodesCounter < $recent_episode_in_feed or $recent_episode_in_feed == "All") {
////Validate the current episode
//NB. validateSingleEpisode returns [0] episode is supported (bool), [1] Episode Absolute path, [2] Episode XML DB absolute path,[3] File Extension (Type), [4] File MimeType, [5] File name without extension, [6] episode file supported but to XML present
$thisPodcastEpisode = validateSingleEpisode($singleFileName);
////If episode is supported and has a related xml db, and if it's not set to a future date OR if it's set for a future date but you are logged in as admin
if ($thisPodcastEpisode[0] == TRUE and !publishInFuture($thisPodcastEpisode[1])) {
////Parse XML data related to the episode
// NB. Function parseXMLepisodeData returns: [0] episode title, [1] short description, [2] long description, [3] image associated, [4] iTunes keywords, [5] Explicit language,[6] Author's name,[7] Author's email,[8] PG category 1, [9] PG category 2, [10] PG category 3, [11] file_info_size, [12] file_info_duration, [13] file_info_bitrate, [14] file_info_frequency
$thisPodcastEpisodeData = parseXMLepisodeData($thisPodcastEpisode[2]);
//// If feed manually regenerated, recreate XML DB for each file when XML does not contain file data such as size, duration etc... (i.e. <fileInfoPG> tag)
// NB. The following function is transitional, to enable new XML tags in the file XML data introduced with PG 2.3: it can be removed in future versions.
// We check for data about episode size ($thisPodcastEpisodeData[11]) cause all the episodes should have it, if not, the XML was generated with a version of PG < 2.3
// We also check whether $thisPodcastEpisodeData[3] (image) is null. From PG 2.4 the image field can be a) a file name (for retro compatibility with older versions), b) 1 (mp3 parsed for embedded image. If image exists the file is extracted automatically in the images/ folder by the function retrieveMediaFileDetails)
if ($manualRegeneration and $thisPodcastEpisodeData[11] == NULL or $manualRegeneration and $thisPodcastEpisodeData[3] == "") {
//NB $thisPodcastEpisodeData[3] = to "" empty and not NULL (it exists but does not contain any value).
//// Remapping data from parseXMLepisodeData to be sent as a parameter to writeEpisodeXMLDB
$thisEpisodeDataToWriteInXML[0] = $thisPodcastEpisodeData[0];
// Title
$thisEpisodeDataToWriteInXML[1] = $thisPodcastEpisodeData[1];
// Short Desc
$thisEpisodeDataToWriteInXML[2] = $thisPodcastEpisodeData[2];
// Long Desc
//Image embedded or specified in the XML file is empty (no values)
if ($thisPodcastEpisodeData[3] == "") {
$thisEpisodeDataToWriteInXML[3] = 1;
} else {
$thisEpisodeDataToWriteInXML[3] = $thisPodcastEpisodeData[3];
}
// Image
$thisEpisodeDataToWriteInXML[4] = array($thisPodcastEpisodeData[8], $thisPodcastEpisodeData[9], $thisPodcastEpisodeData[10]);
// Categories
$thisEpisodeDataToWriteInXML[5] = $thisPodcastEpisodeData[4];
// Keywords
$thisEpisodeDataToWriteInXML[6] = $thisPodcastEpisodeData[5];
// Explicit
$thisEpisodeDataToWriteInXML[7] = $thisPodcastEpisodeData[6];
// Auth name
$thisEpisodeDataToWriteInXML[8] = $thisPodcastEpisodeData[7];
// Auth email
//Episode size and data from GETID3 from retrieveMediaFileDetails function
//NB retrieveMediaFileDetails returns: [0] $ThisFileSizeInMB, [1] $file_duration, [2] $file_bitrate, [3] $file_freq, [4] $thisFileTitleID3, [5] $thisFileArtistID3
$episodeID3 = retrieveMediaFileDetails($thisPodcastEpisode[1], $absoluteurl, $thisPodcastEpisode[5], $img_dir);
//Rewrite the XML data file of this episode (including the fileInfoPG tag)
writeEpisodeXMLDB($thisEpisodeDataToWriteInXML, $absoluteurl, $thisPodcastEpisode[1], $thisPodcastEpisode[2], $thisPodcastEpisode[5], TRUE);
}
//end if $manualRegeneration
//// If category is specified, show just episodes belonging to it (if the current is not, skip this loop)
if (isset($category) and $category != NULL and $category != $thisPodcastEpisodeData[8] and $category != $thisPodcastEpisodeData[9] and $category != $thisPodcastEpisodeData[10]) {
continue;
}
//// Content Depuration (to avoid validation errors in the RSS feed)
$text_title = depurateContent($thisPodcastEpisodeData[0]);
//title
$text_shortdesc = depurateContent($thisPodcastEpisodeData[1]);
//short desc
$text_longdesc = iTunesSummaryLinks(depurateContent($thisPodcastEpisodeData[2]));
$text_keywordspg = depurateContent($thisPodcastEpisodeData[4]);
//Keywords
$text_authornamepg = depurateContent($thisPodcastEpisodeData[6]);
//author's name
$text_authoremailpg = depurateContent($thisPodcastEpisodeData[7]);
// Other Data from the file
$text_explicit = $thisPodcastEpisodeData[5];
$file_size = filesize($thisPodcastEpisode[1]);
$filetime = filemtime($thisPodcastEpisode[1]);
$filepubdate = date('r', $filetime);
$filemimetype = $thisPodcastEpisode[4];
$fileDuration = $thisPodcastEpisodeData[12];
$episodes_feed .= '
<item>
<title>' . $text_title . '</title>
<itunes:subtitle>' . $text_shortdesc . '</itunes:subtitle>
<itunes:summary>' . $text_longdesc . '</itunes:summary>
<description>' . $text_shortdesc . '</description>
<link>' . $link . $singleFileName . '</link>
<enclosure url="' . $url . $upload_dir . $singleFileName . '" length="' . $file_size . '" type="' . $filemimetype . '"/>
<guid>' . $link . $singleFileName . '</guid>
';
//// Duration
if ($fileDuration != NULL) {
$episodes_feed .= '<itunes:duration>' . $fileDuration . '</itunes:duration>
';
}
//Image associated to single episode
if (file_exists($absoluteurl . $img_dir . $thisPodcastEpisode[5] . '.jpg')) {
$episodes_feed .= '<itunes:image href="' . $url . $img_dir . $thisPodcastEpisode[5] . '.jpg" />
';
} else {
if (file_exists($absoluteurl . $img_dir . $thisPodcastEpisode[5] . '.png')) {
$episodes_feed .= '<itunes:image href="' . $url . $img_dir . $thisPodcastEpisode[5] . '.png" />
';
}
}
//// Author
// If no author specified, use default author from config.php
if ($text_authornamepg == NULL or $text_authornamepg == ",") {
$episodes_feed .= '<author>' . $author_email . ' (' . $author_name . ')</author>
<itunes:author>' . $author_name . '</itunes:author>
';
} else {
$episodes_feed .= '<author>' . $text_authoremailpg . ' (' . $text_authornamepg . ')</author>
<itunes:author>' . $text_authornamepg . '</itunes:author>
';
}
//// Keywords
if ($text_keywordspg != NULL) {
//if keywords are present
$episodes_feed .= '<itunes:keywords>' . $text_keywordspg . '</itunes:keywords>
';
}
//// Explicit
if ($text_explicit != NULL) {
$episodes_feed .= '<itunes:explicit>' . $text_explicit . '</itunes:explicit>
';
}
//// File Date
$episodes_feed .= '<pubDate>' . $filepubdate . '</pubDate>
</item>
';
$episodesCounter++;
// increment recent counter
}
// END - If episode is supported
}
// END - Limit episodes in the feed
}
// END - Loop through each file in the media directory
}
// END - If media directory contains files
//// RSS Feed Tail
$tail_feed = '
</channel>
</rss>';
//// Construct Output
$finalRSSfeed = $head_feed . $episodes_feed . $tail_feed;
// Output in a file
if ($outputInFile == TRUE) {
$fp1 = fopen($feedfilename, "w+");
//Open for reading and empty
fclose($fp1);
$fp = fopen($feedfilename, "a+");
//testa xml
fwrite($fp, $finalRSSfeed);
fclose($fp);
} else {
echo $finalRSSfeed;
}
if (!isset($episodesCounter)) {
$episodesCounter = 0;
}
return $episodesCounter;
}
$filename = $_GET['filename'];
//Clean variable, avoid downloading of file outside podcast generator root directory.
$filename = str_replace("/", "", $filename);
// Replace / in the filename
$filename = str_replace("\\", "", $filename);
// Replace \ in the filename
$filename_path = $absoluteurl . $upload_dir . $filename;
// absolute path of the filename to download
if (file_exists($filename_path)) {
$file_media = divideFilenameFromExtension($filename);
$fileData = checkFileType($file_media[1], $absoluteurl);
$podcast_filetype = $fileData[0];
$filemimetype = $fileData[1];
$isFileSupported = $fileData[2];
// SECURITY OPTION: if extension is supported (file to download must have a known episode extension)
if ($isFileSupported == TRUE and $file_media[1] == $podcast_filetype and !publishInFuture($filename_path)) {
//// Headers
### required by internet explorer
if (ini_get('zlib.output_compression')) {
ini_set('zlib.output_compression', 'Off');
}
###
header("Pragma: public");
// required
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private", false);
// required for certain browsers
header("Content-Type: {$filemimetype}");
header("Content-Disposition: attachment; filename=" . basename($filename_path) . ";");
header("Content-Transfer-Encoding: binary");
