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authorEvan Prodromou <evan@prodromou.name>2008-05-22 07:29:54 -0400
committerEvan Prodromou <evan@prodromou.name>2008-05-22 07:29:54 -0400
commit310ef22fd996a21642cc63b33829cc1f397269d7 (patch)
treebc1f4088703abd351118b614a0f133198f23d549 /lib/rssaction.php
parent5d0bd93eb3e958b41113afdce85643a82a1f5bb3 (diff)
abstract out RSS 1.0 generation to allow multiple streams
darcs-hash:20080522112954-84dde-aa5087977298f5169148383e82e22241e613b1f2.gz
Diffstat (limited to 'lib/rssaction.php')
-rw-r--r--lib/rssaction.php133
1 files changed, 133 insertions, 0 deletions
diff --git a/lib/rssaction.php b/lib/rssaction.php
new file mode 100644
index 000000000..9d4066ee5
--- /dev/null
+++ b/lib/rssaction.php
@@ -0,0 +1,133 @@
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, Inc.
+ *
+ * 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/>.
+ */
+
+if (!defined('LACONICA')) { exit(1); }
+
+class Rss10Action extends Action {
+
+ function handle($args) {
+ parent::handle($args);
+
+ $limit = (int) $this->trimmed('limit');
+
+ $this->show_rss($limit);
+ }
+
+ function init() {
+ return true;
+ }
+
+ function get_notices() {
+ return array();
+ }
+
+ function get_channel() {
+ return array('url' => '',
+ 'title' => '',
+ 'link' => '',
+ 'description' => '');
+ }
+
+ function get_image() {
+ return NULL;
+ }
+
+ function show_rss($limit=0) {
+
+ if (!$this->init()) {
+ return;
+ }
+
+ $notices = $this->get_notices($limit);
+
+ $this->init_rss();
+ $this->show_channel($notices);
+ $this->show_image();
+
+ foreach ($notices as $n) {
+ $this->show_item($n);
+ }
+
+ $this->end_rss();
+ }
+
+ function show_channel($notices) {
+
+ $channel = $this->get_channel();
+ $image = $this->get_image();
+
+ common_element_start('channel', array('rdf:about' => $channel['url']));
+ common_element('title', NULL, $channel['title']);
+ common_element('link', NULL, $channel['link']);
+ common_element('description', NULL, $channel['description']);
+
+ if ($image) {
+ common_element('image', array('rdf:resource' => $image));
+ }
+
+ common_element_start('items');
+ common_element_start('rdf:Seq');
+ foreach ($notices as $n) {
+ common_element('rdf:li', array('rdf:resource' =>
+ common_local_url('shownotice',
+ array('notice' => $n->id))));
+ }
+
+ common_element_end('rdf:Seq');
+ common_element_end('items');
+ common_element_end('channel');
+ }
+
+ function show_image() {
+ $image = $this->get_image();
+ if ($image) {
+ $channel = $this->get_channel();
+ common_element_start('image', array('rdf:about' => $image));
+ common_element('title', NULL, $channel['title']);
+ common_element('link', NULL, $channel['link']);
+ common_element('url', NULL, $image);
+ common_element_end('image');
+ }
+ }
+
+ function show_item($notice) {
+ $nurl = common_local_url('shownotice', array('notice' => $notice->id));
+ common_element_start('item', array('rdf:about' => $nurl));
+ common_element('title', NULL, $notice->created);
+ common_element('link', NULL, $nurl);
+ common_element('description', NULL, common_render_content($notice->content));
+ common_element('dc:date', NULL, common_date_w3dtf($notice->created));
+ common_element_end('item');
+ }
+
+ function init_rss() {
+ header('Content-Type: application/rdf+xml');
+
+ common_start_xml();
+ common_element_start('rdf:RDF', array('xmlns:rdf' =>
+ 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
+ 'xmlns:dc' =>
+ 'http://purl.org/dc/elements/1.1/',
+ 'xmlns' => 'http://purl.org/rss/1.0/'));
+ }
+
+ function end_rss() {
+ common_element_end('rdf:RDF');
+ }
+} \ No newline at end of file