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<?php
/*
* Copyright (C) 2009 Nick White
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
header("Content-Type: application/atom+xml");
function extract_description($body)
{
$body = explode("\n", $body);
$description = strip_tags($body[0]); /* use first line of body */
return $description;
}
function atom_header($metadatafile)
{
print("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
print("<feed xmlns=\"http://www.w3.org/2005/Atom\">\n");
/* get variables to use for channel metadata */
include($_SERVER['DOCUMENT_ROOT'] . $metadatafile);
print("\t<id>" . "http://" . $_SERVER['HTTP_HOST'] . "/</id>\n");
print("\t<title>" . $title . "</title>\n");
print("\t<updated>" . date("c") . "</updated>\n"); /* check format is rfc3339 */
print("\t<author><name>" . $author . "</name></author>\n");
print("\t<link rel=\"self\" href=\"http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] . "\" />\n");
if (isset($copyright) && !empty($copyright))
print("\t<rights>" . $copyright . "</rights>\n");
$description = extract_description($body);
if (!empty($description))
print("\t<description>" . $description . "</description>\n");
}
function create_entry($dir, $file)
{
unset($title, $body, $summary, $author, $language, $category, $updated);
include($_SERVER['DOCUMENT_ROOT'] . "/" . $dir . "/" . $file);
print("\t<entry>\n");
print("\t\t<id>" . "http://" . $_SERVER['HTTP_HOST'] . "/" . $dir . "/" . $file . "</id>\n");
print("\t\t<title>" . $title . "</title>\n");
$updated = filemtime($dir . "/" . $file);
$updated = date("c", $updated);
print("\t\t<updated>" . $updated . "</updated>\n");
if (isset($author) && !empty($author))
print("\t\t<author><name>" . $author . "</name></author>\n");
print("\t\t<link rel=\"alternate\" href=\"" . "http://" . $_SERVER['HTTP_HOST'] . "/" . $dir . "/" . $file . "\" />\n");
$summary = extract_description($body);
if (!empty($summary))
print("\t\t<summary>" . $summary . "</summary>\n");
print("\t\t<content type=\"xhtml\"><div xmlns=\"http://www.w3.org/1999/xhtml\">" . $body . "</div></content>\n");
$category = ereg_replace("^text", "", $dir); /* dir after text */
if (!empty($category))
print("\t\t<category term=\"" . $category . "\" />\n");
print("\t</entry>\n");
}
function create_entries_from_dir($dir)
{
if ($handle = opendir($dir)) {
while (false !== ($file = readdir($handle))) {
if (!is_dir($file)) {
if ($file[0] != "." && ereg(".php$", $file))
create_entry($dir, $file);
}
else {
if ($file[0] != ".")
create_entries_from_dir($dir . "/" . $file);
}
}
closedir($handle);
}
}
function atom_footer()
{
print("</feed>\n");
}
?>
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