gnu-social/actions/foaf.php
Evan Prodromou e9e75fc9d5 isReadOnly() now takes arguments
Add an array of arguments to isReadOnly() method of actions, to let
them change their results depending on what actions are called.
Primarily used by the 'api' action. Ideally in the future that will be
multiple actions. But this might still be useful.
2009-04-13 15:49:26 -04:00

255 lines
9.0 KiB
PHP

<?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); }
define('LISTENER', 1);
define('LISTENEE', -1);
define('BOTH', 0);
class FoafAction extends Action
{
function isReadOnly($args)
{
return true;
}
function prepare($args)
{
parent::prepare($args);
$nickname_arg = $this->arg('nickname');
if (empty($nickname_arg)) {
$this->clientError(_('No such user.'), 404);
return false;
}
$this->nickname = common_canonical_nickname($nickname_arg);
// Permanent redirect on non-canonical nickname
if ($nickname_arg != $this->nickname) {
common_redirect(common_local_url('foaf',
array('nickname' => $this->nickname)),
301);
return false;
}
$this->user = User::staticGet('nickname', $this->nickname);
if (!$this->user) {
$this->clientError(_('No such user.'), 404);
return false;
}
$this->profile = $this->user->getProfile();
if (!$this->profile) {
$this->serverError(_('User has no profile.'), 500);
return false;
}
return true;
}
function handle($args)
{
parent::handle($args);
header('Content-Type: application/rdf+xml');
$this->startXML();
$this->elementStart('rdf:RDF', array('xmlns:rdf' =>
'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
'xmlns:rdfs' =>
'http://www.w3.org/2000/01/rdf-schema#',
'xmlns:geo' =>
'http://www.w3.org/2003/01/geo/wgs84_pos#',
'xmlns' => 'http://xmlns.com/foaf/0.1/'));
// This is the document about the user
$this->showPpd('', $this->user->uri);
// XXX: might not be a person
$this->elementStart('Person', array('rdf:about' =>
$this->user->uri));
$this->element('mbox_sha1sum', null, sha1('mailto:' . $this->user->email));
if ($this->profile->fullname) {
$this->element('name', null, $this->profile->fullname);
}
if ($this->profile->homepage) {
$this->element('homepage', array('rdf:resource' => $this->profile->homepage));
}
if ($this->profile->bio) {
$this->element('rdfs:comment', null, $this->profile->bio);
}
// XXX: more structured location data
if ($this->profile->location) {
$this->elementStart('based_near');
$this->elementStart('geo:SpatialThing');
$this->element('name', null, $this->profile->location);
$this->elementEnd('geo:SpatialThing');
$this->elementEnd('based_near');
}
$this->showMicrobloggingAccount($this->profile, common_root_url());
$avatar = $this->profile->getOriginalAvatar();
if ($avatar) {
$this->elementStart('img');
$this->elementStart('Image', array('rdf:about' => $avatar->url));
foreach (array(AVATAR_PROFILE_SIZE, AVATAR_STREAM_SIZE, AVATAR_MINI_SIZE) as $size) {
$scaled = $this->profile->getAvatar($size);
if (!$scaled->original) { // sometimes the original has one of our scaled sizes
$this->elementStart('thumbnail');
$this->element('Image', array('rdf:about' => $scaled->url));
$this->elementEnd('thumbnail');
}
}
$this->elementEnd('Image');
$this->elementEnd('img');
}
// Get people user is subscribed to
$person = array();
$sub = new Subscription();
$sub->subscriber = $this->profile->id;
$sub->whereAdd('subscriber != subscribed');
if ($sub->find()) {
while ($sub->fetch()) {
if (!empty($sub->token)) {
$other = Remote_profile::staticGet('id', $sub->subscribed);
} else {
$other = User::staticGet('id', $sub->subscribed);
}
if (empty($other)) {
common_debug('Got a bad subscription: '.print_r($sub,true));
continue;
}
$this->element('knows', array('rdf:resource' => $other->uri));
$person[$other->uri] = array(LISTENEE,
$other->id,
$other->nickname,
(empty($sub->token)) ? 'User' : 'Remote_profile');
$other->free();
$other = null;
unset($other);
}
}
$sub->free();
$sub = null;
unset($sub);
// Get people who subscribe to user
$sub = new Subscription();
$sub->subscribed = $this->profile->id;
$sub->whereAdd('subscriber != subscribed');
if ($sub->find()) {
while ($sub->fetch()) {
if ($sub->token) {
$other = Remote_profile::staticGet('id', $sub->subscriber);
} else {
$other = User::staticGet('id', $sub->subscriber);
}
if (!$other) {
common_debug('Got a bad subscription: '.print_r($sub,true));
continue;
}
if (array_key_exists($other->uri, $person)) {
$person[$other->uri][0] = BOTH;
} else {
$person[$other->uri] = array(LISTENER,
$other->id,
$other->nickname,
(empty($sub->token)) ? 'User' : 'Remote_profile');
}
$other->free();
$other = null;
unset($other);
}
}
$sub->free();
$sub = null;
unset($sub);
$this->elementEnd('Person');
foreach ($person as $uri => $p) {
$foaf_url = null;
list($type, $id, $nickname, $cls) = $p;
if ($cls == 'User') {
$foaf_url = common_local_url('foaf', array('nickname' => $nickname));
}
$profile = Profile::staticGet($id);
$this->elementStart('Person', array('rdf:about' => $uri));
if ($type == LISTENER || $type == BOTH) {
$this->element('knows', array('rdf:resource' => $this->user->uri));
}
$this->showMicrobloggingAccount($profile, ($cls == 'User') ?
common_root_url() : null);
if ($foaf_url) {
$this->element('rdfs:seeAlso', array('rdf:resource' => $foaf_url));
}
$this->elementEnd('Person');
if ($foaf_url) {
$this->showPpd($foaf_url, $uri);
}
$profile->free();
$profile = null;
unset($profile);
}
$this->elementEnd('rdf:RDF');
$this->endXML();
}
function showPpd($foaf_url, $person_uri)
{
$this->elementStart('PersonalProfileDocument', array('rdf:about' => $foaf_url));
$this->element('maker', array('rdf:resource' => $person_uri));
$this->element('primaryTopic', array('rdf:resource' => $person_uri));
$this->elementEnd('PersonalProfileDocument');
}
function showMicrobloggingAccount($profile, $service=null)
{
// Their account
$this->elementStart('holdsAccount');
$this->elementStart('OnlineAccount');
if ($service) {
$this->element('accountServiceHomepage', array('rdf:resource' =>
$service));
}
$this->element('accountName', null, $profile->nickname);
$this->element('homepage', array('rdf:resource' => $profile->profileurl));
$this->elementEnd('OnlineAccount');
$this->elementEnd('holdsAccount');
}
}