gnu-social/actions/foaf.php
Mikael Nordfeldth 747fe9d59b Tidying up getUser calls to profiles and some events
getUser calls are much more strict, and one place where this was found was
in the (un)subscribe start/end event handlers, which resulted in making the
Subscription class a bit stricter, regarding ::start and ::cancel at least.
Several minor fixes in many files were made due to this.

This does NOT touch the Foreign_link function, which should also have a more
strict getUser call. That is a future project.
2013-09-09 23:03:34 +02:00

313 lines
12 KiB
PHP

<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, 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('STATUSNET') && !defined('LACONICA')) { exit(1); }
define('LISTENER', 1);
define('LISTENEE', -1);
define('BOTH', 0);
// @todo XXX: Documentation missing.
class FoafAction extends Action
{
function isReadOnly($args)
{
return true;
}
function prepare($args)
{
parent::prepare($args);
$nickname_arg = $this->arg('nickname');
if (empty($nickname_arg)) {
// TRANS: Client error displayed when requesting Friends of a Friend feed without providing a user nickname.
$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::getKV('nickname', $this->nickname);
if (!$this->user) {
// TRANS: Client error displayed when requesting Friends of a Friend feed for an object that is not a user.
$this->clientError(_('No such user.'), 404);
return false;
}
$this->profile = $this->user->getProfile();
if (!$this->profile) {
// TRANS: Error message displayed when referring to a user without a 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:bio' =>
'http://purl.org/vocab/bio/0.1/',
'xmlns:sioc' =>
'http://rdfs.org/sioc/ns#',
'xmlns' => 'http://xmlns.com/foaf/0.1/'));
// This is the document about the user
$this->showPpd('', $this->user->uri);
// Would be nice to tell if they were a Person or not (e.g. a #person usertag?)
$this->elementStart('Agent', array('rdf:about' =>
$this->user->uri));
if ($this->user->email) {
$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->profileurl) {
$this->element('weblog', array('rdf:resource' => $this->profile->profileurl));
}
if ($this->profile->bio) {
$this->element('bio:olb', null, $this->profile->bio);
}
$location = $this->profile->getLocation();
if ($location) {
$attr = array();
if ($location->getRdfURL()) {
$attr['rdf:about'] = $location->getRdfURL();
}
$location_name = $location->getName();
$this->elementStart('based_near');
$this->elementStart('geo:SpatialThing', $attr);
if ($location_name) {
$this->element('name', null, $location_name);
}
if ($location->lat) {
$this->element('geo:lat', null, $location->lat);
}
if ($location->lon) {
$this->element('geo:long', null, $location->lon);
}
if ($location->getURL()) {
$this->element('page', array('rdf:resource'=>$location->getURL()));
}
$this->elementEnd('geo:SpatialThing');
$this->elementEnd('based_near');
}
$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');
}
$person = $this->showMicrobloggingAccount($this->profile,
common_root_url(), $this->user->uri,
/*$fetchSubscriptions*/true,
/*$isSubscriber*/false);
// Get people who subscribe to user
$sub = new Subscription();
$sub->subscribed = $this->profile->id;
$sub->whereAdd('subscriber != subscribed');
if ($sub->find()) {
while ($sub->fetch()) {
$profile = Profile::getKV('id', $sub->subscriber);
if (empty($profile)) {
common_debug('Got a bad subscription: '.print_r($sub,true));
continue;
}
$other_uri = $profile->getUri();
if (array_key_exists($other_uri, $person)) {
$person[$other_uri][0] = BOTH;
} else {
$person[$other_uri] = array(LISTENER,
$profile->id,
$profile->nickname,
$profile->isLocal() ? 'local' : 'remote');
}
unset($profile);
}
}
unset($sub);
foreach ($person as $uri => $p) {
list($type, $id, $nickname, $local) = $p;
if ($type == BOTH) {
$this->element('knows', array('rdf:resource' => $uri));
}
}
$this->elementEnd('Agent');
foreach ($person as $uri => $p) {
$foaf_url = null;
list($type, $id, $nickname, $local) = $p;
if ($local == 'local') {
$foaf_url = common_local_url('foaf', array('nickname' => $nickname));
}
$profile = Profile::getKV($id);
$this->elementStart('Agent', array('rdf:about' => $uri));
if ($type == BOTH) {
$this->element('knows', array('rdf:resource' => $this->user->uri));
}
$this->showMicrobloggingAccount($profile,
($local == 'local') ? common_root_url() : null,
$uri,
/*$fetchSubscriptions*/false,
/*$isSubscriber*/($type == LISTENER || $type == BOTH));
if ($foaf_url) {
$this->element('rdfs:seeAlso', array('rdf:resource' => $foaf_url));
}
$this->elementEnd('Agent');
if ($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');
}
/**
* Output FOAF <account> bit for the given profile.
*
* @param Profile $profile
* @param mixed $service Root URL of this StatusNet instance for a local
* user, otherwise null.
* @param mixed $useruri URI string for the referenced profile..
* @param boolean $fetchSubscriptions Should we load and list all their subscriptions?
* @param boolean $isSubscriber if not fetching subs, we can still mark the user as following the current page.
*
* @return array if $fetchSubscribers is set, return a list of info on those
* subscriptions.
*/
function showMicrobloggingAccount($profile, $service=null, $useruri=null, $fetchSubscriptions=false, $isSubscriber=false)
{
$attr = array();
if ($useruri) {
$attr['rdf:about'] = $useruri . '#acct';
}
// Their account
$this->elementStart('account');
$this->elementStart('OnlineAccount', $attr);
if ($service) {
$this->element('accountServiceHomepage', array('rdf:resource' =>
$service));
}
$this->element('accountName', null, $profile->nickname);
$this->element('accountProfilePage', array('rdf:resource' => $profile->profileurl));
if ($useruri) {
$this->element('sioc:account_of', array('rdf:resource'=>$useruri));
}
$person = array();
if ($fetchSubscriptions) {
// Get people user is subscribed to
$sub = new Subscription();
$sub->subscriber = $profile->id;
$sub->whereAdd('subscriber != subscribed');
if ($sub->find()) {
while ($sub->fetch()) {
$profile = Profile::getKV('id', $sub->subscribed);
if (empty($profile)) {
common_debug('Got a bad subscription: '.print_r($sub,true));
continue;
}
$other_uri = $profile->getUri();
$this->element('sioc:follows', array('rdf:resource' => $other_uri.'#acct'));
$person[$other_uri] = array(LISTENEE,
$profile->id,
$profile->nickname,
$profile->isLocal() ? 'local' : 'remote');
unset($profile);
}
}
unset($sub);
} else if ($isSubscriber) {
// Just declare that they follow the user whose FOAF we're showing.
$this->element('sioc:follows', array('rdf:resource' => $this->user->uri . '#acct'));
}
$this->elementEnd('OnlineAccount');
$this->elementEnd('account');
return $person;
}
}