friendica/src/Protocol/Activity.php

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<?php
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/**
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* @copyright Copyright (C) 2010-2022, the Friendica project
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*
* @license GNU AGPL version 3 or any later version
*
* 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 <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Protocol;
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use Friendica\Protocol\ActivityNamespace;
/**
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* Base class for the Activity Verbs
*/
final class Activity
{
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/**
* Indicates that the actor marked the object as an item of special interest.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const LIKE = ActivityNamespace::ACTIVITY_SCHEMA . 'like';
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/**
* Dislike a message ("I don't like the post")
*
* @see http://purl.org/macgirvin/dfrn/1.0/dislike
* @var string
*/
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const DISLIKE = ActivityNamespace::DFRN . '/dislike';
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/**
* Attend an event
*
* @see https://github.com/friendica/friendica/wiki/ActivityStreams#activity_attend
* @var string
*/
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const ATTEND = ActivityNamespace::ZOT . '/activity/attendyes';
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/**
* Don't attend an event
*
* @see https://github.com/friendica/friendica/wiki/ActivityStreams#activity_attendno
* @var string
*/
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const ATTENDNO = ActivityNamespace::ZOT . '/activity/attendno';
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/**
* Attend maybe an event
*
* @see https://github.com/friendica/friendica/wiki/ActivityStreams#activity_attendmaybe
* @var string
*/
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const ATTENDMAYBE = ActivityNamespace::ZOT . '/activity/attendmaybe';
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/**
* Indicates the creation of a friendship that is reciprocated by the object.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const FRIEND = ActivityNamespace::ACTIVITY_SCHEMA . 'make-friend';
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/**
* Indicates the creation of a friendship that has not yet been reciprocated by the object.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const REQ_FRIEND = ActivityNamespace::ACTIVITY_SCHEMA . 'request-friend';
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/**
* Indicates that the actor has removed the object from the collection of friends.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const UNFRIEND = ActivityNamespace::ACTIVITY_SCHEMA . 'remove-friend';
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/**
* Indicates that the actor began following the activity of the object.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const FOLLOW = ActivityNamespace::ACTIVITY_SCHEMA . 'follow';
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/**
* Indicates that the actor has stopped following the object.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const UNFOLLOW = ActivityNamespace::ACTIVITY_SCHEMA . 'stop-following';
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/**
* Indicates that the actor has become a member of the object.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const JOIN = ActivityNamespace::ACTIVITY_SCHEMA . 'join';
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/**
* Implementors SHOULD use verbs such as post where the actor is adding new items to a collection or similar.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const POST = ActivityNamespace::ACTIVITY_SCHEMA . 'post';
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/**
* The "update" verb indicates that the actor has modified the object.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const UPDATE = ActivityNamespace::ACTIVITY_SCHEMA . 'update';
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/**
* Indicates that the actor has identified the presence of a target inside another object.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const TAG = ActivityNamespace::ACTIVITY_SCHEMA . 'tag';
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/**
* Indicates that the actor marked the object as an item of special interest.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const FAVORITE = ActivityNamespace::ACTIVITY_SCHEMA . 'favorite';
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/**
* Indicates that the actor has removed the object from the collection of favorited items.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const UNFAVORITE = ActivityNamespace::ACTIVITY_SCHEMA . 'unfavorite';
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/**
* Indicates that the actor has called out the object to readers.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const SHARE = ActivityNamespace::ACTIVITY_SCHEMA . 'share';
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/**
* Indicates that the actor has deleted the object.
*
* @see http://activitystrea.ms/head/activity-schema.html#verbs
* @var string
*/
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const DELETE = ActivityNamespace::ACTIVITY_SCHEMA . 'delete';
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/**
* Indicates that the actor is calling the target's attention the object.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-announce
* @var string
*/
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const ANNOUNCE = ActivityNamespace::ACTIVITY2 . 'Announce';
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/**
* Pokes an user.
*
* @see https://github.com/friendica/friendica/wiki/ActivityStreams#activity_poke
* @var string
*/
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const POKE = ActivityNamespace::ZOT . '/activity/poke';
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const O_UNFOLLOW = ActivityNamespace::OSTATUS . '/unfollow';
const O_UNFAVOURITE = ActivityNamespace::OSTATUS . '/unfavorite';
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/**
* React to a post via an emoji
*
* @var string
*/
const EMOJIREACT = ActivityNamespace::LITEPUB . '/emojireact';
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/**
* View notification from Peertube
*
* @var string
*/
const VIEW = ActivityNamespace::PEERTUBE . '/view';
/**
* likes (etc.) can apply to other things besides posts. Check if they are post children,
* in which case we handle them specially
*
* Hidden activities, which doesn't need to be shown
*/
const HIDDEN_ACTIVITIES = [
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self::LIKE, self::DISLIKE,
self::ATTEND, self::ATTENDNO, self::ATTENDMAYBE,
self::FOLLOW,
self::ANNOUNCE,
self::EMOJIREACT,
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self::VIEW,
];
/**
* Checks if the given activity is a hidden activity
*
* @param string $activity The current activity
*
* @return bool True, if the activity is hidden
*/
public function isHidden(string $activity)
{
foreach (self::HIDDEN_ACTIVITIES as $hiddenActivity) {
if ($this->match($activity, $hiddenActivity)) {
return true;
}
}
return false;
}
/**
* Compare activity uri. Knows about activity namespace.
*
* @param string $haystack
* @param string $needle
*
* @return boolean
*/
public function match(string $haystack, string $needle)
{
return (($haystack === $needle) ||
((basename($needle) === $haystack) &&
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strstr($needle, ActivityNamespace::ACTIVITY_SCHEMA)));
}
}