gnu-social/plugins/Event/EventPlugin.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
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*
* Microapp plugin for event invitations and RSVPs
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*
* PHP version 5
*
* 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/>.
*
* @category Event
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* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
/**
* Event plugin
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*
* @category Sample
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class EventPlugin extends MicroappPlugin
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{
/**
* Set up our tables (event and rsvp)
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*
* @see Schema
* @see ColumnDef
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onCheckSchema()
{
$schema = Schema::get();
$schema->ensureTable('event', Happening::schemaDef());
$schema->ensureTable('rsvp', RSVP::schemaDef());
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return true;
}
/**
* Load related modules when needed
*
* @param string $cls Name of the class to be loaded
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onAutoload($cls)
{
$dir = dirname(__FILE__);
switch ($cls)
{
case 'NeweventAction':
case 'NewrsvpAction':
case 'ShoweventAction':
case 'ShowrsvpAction':
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include_once $dir . '/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
return false;
case 'EventForm':
include_once $dir . '/'.strtolower($cls).'.php';
break;
case 'Happening':
case 'RSVP':
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include_once $dir . '/'.$cls.'.php';
return false;
default:
return true;
}
}
/**
* Map URLs to actions
*
* @param Net_URL_Mapper $m path-to-action mapper
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onRouterInitialized($m)
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{
$m->connect('main/event/new',
array('action' => 'newevent'));
$m->connect('main/event/rsvp',
array('action' => 'newrsvp'));
$m->connect('event/:id',
array('action' => 'showevent'),
array('id' => '[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}'));
$m->connect('rsvp/:id',
array('action' => 'showrsvp'),
array('id' => '[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}'));
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return true;
}
function onPluginVersion(&$versions)
{
$versions[] = array('name' => 'Event',
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'version' => STATUSNET_VERSION,
'author' => 'Evan Prodromou',
'homepage' => 'http://status.net/wiki/Plugin:Event',
'description' =>
_m('Event invitations and RSVPs.'));
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return true;
}
function appTitle() {
return _m('Event');
}
function tag() {
return 'event';
}
function types() {
return array(Happening::OBJECT_TYPE,
RSVP::POSITIVE,
RSVP::NEGATIVE,
RSVP::POSSIBLE);
}
/**
* Given a parsed ActivityStreams activity, save it into a notice
* and other data structures.
*
* @param Activity $activity
* @param Profile $actor
* @param array $options=array()
*
* @return Notice the resulting notice
*/
function saveNoticeFromActivity($activity, $actor, $options=array())
{
if (count($activity->objects) != 1) {
throw new Exception('Too many activity objects.');
}
$happeningObj = $activity->objects[0];
if ($happeningObj->type != Happening::OBJECT_TYPE) {
throw new Exception('Wrong type for object.');
}
$notice = null;
switch ($activity->verb) {
case ActivityVerb::POST:
$notice = Happening::saveNew($actor,
$start_time,
$end_time,
$happeningObj->title,
null,
$happeningObj->summary,
$options);
break;
case RSVP::POSITIVE:
case RSVP::NEGATIVE:
case RSVP::POSSIBLE:
$happening = Happening::staticGet('uri', $happeningObj->id);
if (empty($happening)) {
// FIXME: save the event
throw new Exception("RSVP for unknown event.");
}
$notice = RSVP::saveNew($actor, $happening, $activity->verb, $options);
break;
default:
throw new Exception("Unknown verb for events");
}
return $notice;
}
/**
* Turn a Notice into an activity object
*
* @param Notice $notice
*
* @return ActivityObject
*/
function activityObjectFromNotice($notice)
{
$happening = null;
switch ($notice->object_type) {
case Happening::OBJECT_TYPE:
$happening = Happening::fromNotice($notice);
break;
case RSVP::POSITIVE:
case RSVP::NEGATIVE:
case RSVP::POSSIBLE:
$rsvp = RSVP::fromNotice($notice);
$happening = $rsvp->getEvent();
break;
}
if (empty($happening)) {
throw new Exception("Unknown object type.");
}
$notice = $happening->getNotice();
if (empty($notice)) {
throw new Exception("Unknown event notice.");
}
$obj = new ActivityObject();
$obj->id = $happening->uri;
$obj->type = Happening::OBJECT_TYPE;
$obj->title = $happening->title;
$obj->summary = $happening->description;
$obj->link = $notice->bestUrl();
// XXX: how to get this stuff into JSON?!
$obj->extra[] = array('dtstart',
array('xmlns' => 'urn:ietf:params:xml:ns:xcal'),
common_date_iso8601($happening->start_date));
$obj->extra[] = array('dtend',
array('xmlns' => 'urn:ietf:params:xml:ns:xcal'),
common_date_iso8601($happening->end_date));
// XXX: probably need other stuff here
return $obj;
}
/**
* Change the verb on RSVP notices
*
* @param Notice $notice
*
* @return ActivityObject
*/
function onEndNoticeAsActivity($notice, &$act) {
switch ($notice->object_type) {
case RSVP::POSITIVE:
case RSVP::NEGATIVE:
case RSVP::POSSIBLE:
$act->verb = $notice->object_type;
break;
}
return true;
}
/**
* Custom HTML output for our notices
*
* @param Notice $notice
* @param HTMLOutputter $out
*/
function showNotice($notice, $out)
{
switch ($notice->object_type) {
case Happening::OBJECT_TYPE:
$this->showEventNotice($notice, $out);
break;
case RSVP::POSITIVE:
case RSVP::NEGATIVE:
case RSVP::POSSIBLE:
$this->showRSVPNotice($notice, $out);
break;
}
}
function showRSVPNotice($notice, $out)
{
$out->element('span', null, 'RSVP');
return;
}
function showEventNotice($notice, $out)
{
$out->raw($notice->rendered);
return;
}
/**
* Form for our app
*
* @param HTMLOutputter $out
* @return Widget
*/
function entryForm($out)
{
return new EventForm($out);
}
/**
* When a notice is deleted, clean up related tables.
*
* @param Notice $notice
*/
function deleteRelated($notice)
{
switch ($notice->object_type) {
case Happening::OBJECT_TYPE:
$happening = Happening::fromNotice($notice);
$happening->delete();
break;
case RSVP::POSITIVE:
case RSVP::NEGATIVE:
case RSVP::POSSIBLE:
$rsvp = RSVP::fromNotice($notice);
$rsvp->delete();
break;
}
}
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}