<?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 $notice) { common_element('rdf:li', array('rdf:resource' => $notice->uri)); } 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' => $notice->uri)); common_element('title', NULL, $notice->created); common_element('link', NULL, $nurl); common_element('description', NULL, $notice->content); common_element('dc:date', NULL, common_date_w3dtf($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'); } }