c00491cd7a
Since these functions exit (or throw exception) after running, there is no need to have a 'return' statement or similar afterwards.
313 lines
12 KiB
PHP
313 lines
12 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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define('LISTENER', 1);
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define('LISTENEE', -1);
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define('BOTH', 0);
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// @todo XXX: Documentation missing.
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class FoafAction extends Action
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{
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function isReadOnly($args)
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{
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return true;
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}
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function prepare($args)
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{
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parent::prepare($args);
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$nickname_arg = $this->arg('nickname');
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if (empty($nickname_arg)) {
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// TRANS: Client error displayed when requesting Friends of a Friend feed without providing a user nickname.
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$this->clientError(_('No such user.'), 404);
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}
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$this->nickname = common_canonical_nickname($nickname_arg);
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// Permanent redirect on non-canonical nickname
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if ($nickname_arg != $this->nickname) {
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common_redirect(common_local_url('foaf',
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array('nickname' => $this->nickname)),
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301);
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}
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$this->user = User::getKV('nickname', $this->nickname);
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if (!$this->user) {
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// TRANS: Client error displayed when requesting Friends of a Friend feed for an object that is not a user.
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$this->clientError(_('No such user.'), 404);
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}
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$this->profile = $this->user->getProfile();
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if (!$this->profile) {
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// TRANS: Error message displayed when referring to a user without a profile.
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$this->serverError(_('User has no profile.'), 500);
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}
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return true;
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}
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function handle($args)
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{
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parent::handle($args);
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header('Content-Type: application/rdf+xml');
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$this->startXML();
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$this->elementStart('rdf:RDF', array('xmlns:rdf' =>
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'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
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'xmlns:rdfs' =>
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'http://www.w3.org/2000/01/rdf-schema#',
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'xmlns:geo' =>
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'http://www.w3.org/2003/01/geo/wgs84_pos#',
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'xmlns:bio' =>
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'http://purl.org/vocab/bio/0.1/',
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'xmlns:sioc' =>
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'http://rdfs.org/sioc/ns#',
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'xmlns' => 'http://xmlns.com/foaf/0.1/'));
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// This is the document about the user
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$this->showPpd('', $this->user->uri);
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// Would be nice to tell if they were a Person or not (e.g. a #person usertag?)
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$this->elementStart('Agent', array('rdf:about' =>
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$this->user->uri));
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if ($this->user->email) {
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$this->element('mbox_sha1sum', null, sha1('mailto:' . $this->user->email));
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}
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if ($this->profile->fullname) {
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$this->element('name', null, $this->profile->fullname);
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}
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if ($this->profile->homepage) {
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$this->element('homepage', array('rdf:resource' => $this->profile->homepage));
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}
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if ($this->profile->profileurl) {
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$this->element('weblog', array('rdf:resource' => $this->profile->profileurl));
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}
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if ($this->profile->bio) {
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$this->element('bio:olb', null, $this->profile->bio);
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}
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$location = $this->profile->getLocation();
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if ($location) {
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$attr = array();
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if ($location->getRdfURL()) {
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$attr['rdf:about'] = $location->getRdfURL();
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}
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$location_name = $location->getName();
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$this->elementStart('based_near');
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$this->elementStart('geo:SpatialThing', $attr);
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if ($location_name) {
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$this->element('name', null, $location_name);
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}
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if ($location->lat) {
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$this->element('geo:lat', null, $location->lat);
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}
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if ($location->lon) {
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$this->element('geo:long', null, $location->lon);
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}
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if ($location->getURL()) {
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$this->element('page', array('rdf:resource'=>$location->getURL()));
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}
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$this->elementEnd('geo:SpatialThing');
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$this->elementEnd('based_near');
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}
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try {
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$avatar = Avatar::getUploaded($this->profile);
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$this->elementStart('img');
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$this->elementStart('Image', array('rdf:about' => $avatar->displayUrl()));
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foreach (array(AVATAR_PROFILE_SIZE, AVATAR_STREAM_SIZE, AVATAR_MINI_SIZE) as $size) {
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try {
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$scaled = $this->profile->getAvatar($size);
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$this->elementStart('thumbnail');
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$this->element('Image', array('rdf:about' => $scaled->displayUrl()));
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$this->elementEnd('thumbnail');
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} catch (Exception $e) {
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// This avatar did not exist
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}
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}
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$this->elementEnd('Image');
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$this->elementEnd('img');
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} catch (NoAvatarException $e) {
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// No avatar for this user!
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}
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$person = $this->showMicrobloggingAccount($this->profile,
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common_root_url(), $this->user->uri,
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/*$fetchSubscriptions*/true,
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/*$isSubscriber*/false);
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// Get people who subscribe to user
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$sub = new Subscription();
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$sub->subscribed = $this->profile->id;
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$sub->whereAdd('subscriber != subscribed');
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if ($sub->find()) {
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while ($sub->fetch()) {
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$profile = Profile::getKV('id', $sub->subscriber);
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if (empty($profile)) {
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common_debug('Got a bad subscription: '.print_r($sub,true));
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continue;
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}
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$other_uri = $profile->getUri();
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if (array_key_exists($other_uri, $person)) {
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$person[$other_uri][0] = BOTH;
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} else {
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$person[$other_uri] = array(LISTENER,
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$profile->id,
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$profile->nickname,
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$profile->isLocal() ? 'local' : 'remote');
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}
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unset($profile);
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}
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}
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unset($sub);
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foreach ($person as $uri => $p) {
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list($type, $id, $nickname, $local) = $p;
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if ($type == BOTH) {
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$this->element('knows', array('rdf:resource' => $uri));
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}
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}
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$this->elementEnd('Agent');
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foreach ($person as $uri => $p) {
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$foaf_url = null;
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list($type, $id, $nickname, $local) = $p;
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if ($local == 'local') {
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$foaf_url = common_local_url('foaf', array('nickname' => $nickname));
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}
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$profile = Profile::getKV($id);
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$this->elementStart('Agent', array('rdf:about' => $uri));
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if ($type == BOTH) {
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$this->element('knows', array('rdf:resource' => $this->user->uri));
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}
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$this->showMicrobloggingAccount($profile,
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($local == 'local') ? common_root_url() : null,
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$uri,
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/*$fetchSubscriptions*/false,
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/*$isSubscriber*/($type == LISTENER || $type == BOTH));
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if ($foaf_url) {
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$this->element('rdfs:seeAlso', array('rdf:resource' => $foaf_url));
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}
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$this->elementEnd('Agent');
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if ($foaf_url) {
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$this->showPpd($foaf_url, $uri);
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}
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$profile->free();
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$profile = null;
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unset($profile);
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}
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$this->elementEnd('rdf:RDF');
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$this->endXML();
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}
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function showPpd($foaf_url, $person_uri)
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{
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$this->elementStart('PersonalProfileDocument', array('rdf:about' => $foaf_url));
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$this->element('maker', array('rdf:resource' => $person_uri));
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$this->element('primaryTopic', array('rdf:resource' => $person_uri));
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$this->elementEnd('PersonalProfileDocument');
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}
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/**
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* Output FOAF <account> bit for the given profile.
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*
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* @param Profile $profile
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* @param mixed $service Root URL of this StatusNet instance for a local
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* user, otherwise null.
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* @param mixed $useruri URI string for the referenced profile..
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* @param boolean $fetchSubscriptions Should we load and list all their subscriptions?
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* @param boolean $isSubscriber if not fetching subs, we can still mark the user as following the current page.
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*
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* @return array if $fetchSubscribers is set, return a list of info on those
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* subscriptions.
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*/
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function showMicrobloggingAccount($profile, $service=null, $useruri=null, $fetchSubscriptions=false, $isSubscriber=false)
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{
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$attr = array();
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if ($useruri) {
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$attr['rdf:about'] = $useruri . '#acct';
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}
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// Their account
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$this->elementStart('account');
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$this->elementStart('OnlineAccount', $attr);
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if ($service) {
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$this->element('accountServiceHomepage', array('rdf:resource' =>
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$service));
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}
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$this->element('accountName', null, $profile->nickname);
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$this->element('accountProfilePage', array('rdf:resource' => $profile->profileurl));
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if ($useruri) {
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$this->element('sioc:account_of', array('rdf:resource'=>$useruri));
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}
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$person = array();
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if ($fetchSubscriptions) {
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// Get people user is subscribed to
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$sub = new Subscription();
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$sub->subscriber = $profile->id;
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$sub->whereAdd('subscriber != subscribed');
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if ($sub->find()) {
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while ($sub->fetch()) {
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$profile = Profile::getKV('id', $sub->subscribed);
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if (empty($profile)) {
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common_debug('Got a bad subscription: '.print_r($sub,true));
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continue;
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}
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$other_uri = $profile->getUri();
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$this->element('sioc:follows', array('rdf:resource' => $other_uri.'#acct'));
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$person[$other_uri] = array(LISTENEE,
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$profile->id,
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$profile->nickname,
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$profile->isLocal() ? 'local' : 'remote');
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unset($profile);
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}
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}
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unset($sub);
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} else if ($isSubscriber) {
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// Just declare that they follow the user whose FOAF we're showing.
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$this->element('sioc:follows', array('rdf:resource' => $this->user->uri . '#acct'));
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}
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$this->elementEnd('OnlineAccount');
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$this->elementEnd('account');
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return $person;
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}
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}
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