diff options
Diffstat (limited to 'actions/foaf.php')
| -rw-r--r-- | actions/foaf.php | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/actions/foaf.php b/actions/foaf.php new file mode 100644 index 000000000..d005510b6 --- /dev/null +++ b/actions/foaf.php @@ -0,0 +1,186 @@ +<?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 handle($args) { + parent::handle($args); + + $nickname = $this->trimmed('nickname'); + + $user = User::staticGet('nickname', $nickname); + + if (!$user) { + common_user_error(_t('No such user'), 404); + return; + } + + $profile = $user->getProfile(); + + if (!$profile) { + common_server_error(_t('User has no profile'), 500); + return; + } + + 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:rdfs' => + 'http://www.w3.org/2000/01/rdf-schema#', + 'xmlns' => 'http://xmlns.com/foaf/0.1/')); + + # This is the document about the user + + $this->show_ppd('', $user->uri); + + # XXX: might not be a person + common_element_start('Person', array('rdf:about' => + $user->uri)); + common_element('mbox_sha1sum', NULL, sha1('mailto:' . $user->email)); + if ($profile->fullname) { + common_element('name', NULL, $profile->fullname); + } + if ($profile->homepage) { + common_element('homepage', array('rdf:resource' => $profile->homepage)); + } + if ($profile->bio) { + common_element('rdfs:comment', NULL, $profile->bio); + } + # XXX: more structured location data + if ($profile->location) { + common_element_start('based_near'); + common_element_start('geo:SpatialThing'); + common_element('name', NULL, $profile->location); + common_element_end('geo:SpatialThing'); + common_element_end('based_near'); + } + + $this->show_microblogging_account($profile, common_root_url()); + + $avatar = $profile->getOriginalAvatar(); + + if ($avatar) { + common_element_start('img'); + common_element_start('Image', array('rdf:about' => $avatar->url)); + foreach (array(AVATAR_PROFILE_SIZE, AVATAR_STREAM_SIZE, AVATAR_MINI_SIZE) as $size) { + $scaled = $profile->getAvatar($size); + if (!$scaled->original) { # sometimes the original has one of our scaled sizes + common_element_start('thumbnail'); + common_element('Image', array('rdf:about', $scaled->url)); + common_element_end('thumbnail'); + } + } + common_element_end('Image'); + common_element_end('img'); + } + + # Get people user is subscribed to + + $person = array(); + + $sub = new Subscription(); + $sub->subscriber = $profile->id; + + if ($sub->find()) { + while ($sub->fetch()) { + if ($sub->token) { + $other = Remote_profile::staticGet($sub->subscribed); + } else { + $other = User::staticGet($sub->subscribed); + } + common_element('knows', array('rdf:about', $other->uri)); + $person[$other->uri] = array(LISTENEE, $other); + } + } + + # Get people who subscribe to user + + $sub = new Subscription(); + $sub->subscribed = $profile->id; + + if ($sub->find()) { + while ($sub->fetch()) { + if ($sub->token) { + $other = Remote_profile::staticGet($sub->subscribed); + } else { + $other = User::staticGet($sub->subscribed); + } + if (array_key_exists($other->uri, $person)) { + $person[$other->uri][0] = BOTH; + } else { + $person[$other->uri] = array(LISTENER, $other); + } + } + } + + common_element_end('Person'); + + foreach ($person as $uri => $p) { + $foaf_url = NULL; + if ($p[1] instanceof User) { + $foaf_url = common_local_url('foaf', array('nickname' => $p[1]->nickname)); + } + $profile = Profile::staticGet($p[1]->id); + common_element_start('Person', array('rdf:about' => $uri)); + if ($p[0] == LISTENER || $p[0] == BOTH) { + common_element('knows', array('rdf:about', $user->uri)); + } + $this->show_microblogging_account($profile, ($p[1] instanceof User) ? + common_root_url() : NULL); + if ($foaf_url) { + common_element('rdfs:seeAlso', array('rdf:resource' => $foaf_url)); + } + common_element_end('Person'); + if ($foaf_url) { + $this->show_ppd($foaf_url, $uri); + } + } + + common_element_end('rdf:RDF'); + } + + function show_ppd($foaf_url, $person_uri) { + common_element_start('PersonalProfileDocument', array('rdf:about' => $foaf_url)); + common_element('maker', array('rdf:resource' => $person_uri)); + common_element('primaryTopic', array('rdf:resource' => $person_uri)); + common_element_end('PersonalProfileDocument'); + } + + function show_microblogging_account($profile, $service=NULL) { + # Their account + common_element_start('holdsAccount'); + common_element_start('OnlineAccount'); + if ($service) { + common_element('accountServiceHomepage', array('rdf:resource' => + $service)); + } + common_element('accountName', NULL, $profile->nickname); + common_element('homepage', array('rdf:resource' => $profile->profileurl)); + common_element_end('OnlineAccount'); + common_element_end('holdsAccount'); + } +} |