gnu-social/actions/rss10.php

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<?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);
$nickname = $this->trimmed('nickname');
if (!$nickname) {
common_user_error(_t('No nickname provided.'));
}
$user = User::staticGet('nickname', $nickname);
if (!$user) {
common_user_error(_t('No such nickname.'));
}
$limit = (int) $this->trimmed('limit');
$this->show_rss($user, $limit);
}
function show_rss($user, $limit=0) {
global $config;
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/'));
$notices = $this->get_notices($user, $limit);
$this->show_channel($user, $notices);
foreach ($notices as $n) {
$this->show_item($n);
}
common_element_end('rdf:RDF');
}
function get_notices($user, $limit=0) {
$notices = array();
$notice = DB_DataObject::factory('notice');
$notice->profile_id = $user->id; # user id === profile id
$notice->orderBy('created DESC');
if ($limit != 0) {
$notice->limit(0, $limit);
}
$notice->find();
while ($notice->fetch()) {
$notices[] = clone($notice);
}
return $notices;
}
function show_channel($user, $notices) {
# XXX: this is kind of indirect, eh?
$profile = $user->getProfile();
$avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
common_element_start('channel', array('rdf:about' =>
common_local_url('rss10',
array('nickname' =>
$user->nickname))));
common_element('title', NULL, $user->nickname);
common_element('link', NULL, $profile->profileurl);
common_element('description', NULL, _t('Microblog by ') . $user->nickname);
if ($avatar) {
common_element('image', array('rdf:resource' => $avatar->url));
}
common_element_start('items');
common_element_start('rdf:Seq');
foreach ($notices as $n) {
common_element('rdf:li', array('rdf:resource' =>
common_local_url('shownotice',
array('notice' => $n->id))));
}
common_element_end('rdf:Seq');
common_element_end('items');
common_element_end('channel');
if ($avatar) {
common_element_start('image', array('rdf:about' => $avatar->url));
common_element('title', NULL, $user->nickname);
common_element('link', NULL, $profile->profileurl);
common_element('url', NULL, $avatar->url);
common_element_end('image');
}
}
function show_item($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');
}
}