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-rw-r--r--actions/foaf.php186
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');
+ }
+}