diff options
Diffstat (limited to 'includes/atom.php')
| -rw-r--r-- | includes/atom.php | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/includes/atom.php b/includes/atom.php new file mode 100644 index 0000000..b9673f4 --- /dev/null +++ b/includes/atom.php @@ -0,0 +1,101 @@ +<?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>" . $summary . "</summary>\n"); + + print("\t\t<content>" . strip_tags($body) . "</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"); +} + +?> |