150 lines
3.6 KiB
PHP
150 lines
3.6 KiB
PHP
<?php
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/*
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* This file is part of the ActivityPhp package.
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*
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* Copyright (c) landrok at github.com/landrok
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*
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* For the full copyright and license information, please see
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* <https://github.com/landrok/activitypub/blob/master/LICENSE>.
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*/
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namespace Plugin\ActivityPub\Util\Type;
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use Exception;
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/**
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* \Plugin\ActivityPub\Util\Type\TypeResolver is an abstract class for
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* resolving class names called by their short names (AS types).
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*/
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abstract class TypeResolver
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{
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/**
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* A list of core types
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*
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* @var array
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*/
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protected static array $coreTypes = [
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'Activity', 'Collection', 'CollectionPage',
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'IntransitiveActivity', 'Link', 'ObjectType',
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'OrderedCollection', 'OrderedCollectionPage',
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'Object',
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];
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/**
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* A list of actor types
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*
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* @var array
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*/
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protected static array $actorTypes = [
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'Application', 'Group', 'Organization', 'Person', 'Service',
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];
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/**
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* A list of activity types
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*
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* @var array
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*/
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protected static array $activityTypes = [
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'Accept', 'Add', 'Announce', 'Block',
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'Create', 'Delete', 'Follow', 'Ignore',
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'Invite', 'Join', 'Leave', 'Like',
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'Question', 'Reject', 'Remove', 'Undo',
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];
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/**
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* A list of object types
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*
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* @var array
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*/
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protected static array $objectTypes = [
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'Article', 'Audio', 'Document', 'Event', 'Image',
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'Mention', 'Note', 'Page', 'Place', 'Profile',
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'Tombstone', 'Video',
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];
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/**
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* Get namespaced class for a given short type
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*
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* @param string $type
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*
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* @throws Exception
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*
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* @return string Related namespace
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* @throw \Exception if a namespace was not found.
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*/
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public static function getClass(string $type): string
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{
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$ns = __NAMESPACE__;
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if ($type == 'Object') {
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$type .= 'Type';
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}
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switch ($type) {
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case in_array($type, self::$coreTypes):
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$ns .= '\Core';
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break;
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case in_array($type, self::$activityTypes):
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$ns .= '\Extended\Activity';
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break;
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case in_array($type, self::$actorTypes):
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$ns .= '\Extended\Actor';
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break;
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case in_array($type, self::$objectTypes):
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$ns .= '\Extended\Object';
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break;
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default:
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throw new Exception(
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"Undefined scope for type '{$type}'"
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);
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}
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return $ns . '\\' . $type;
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}
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/**
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* Validate an object pool type with type attribute
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*
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* @param object $item
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* @param string $poolname An expected pool name
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*
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* @return bool
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*/
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public static function isScope(object $item, string $poolname = 'all'): bool
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{
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if (!is_object($item)
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|| !isset($item->type)
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|| !is_string($item->type)
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) {
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return false;
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}
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return match (strtolower($poolname)) {
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'all' => self::exists($item->type),
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'actor' => in_array($item->type, self::$actorTypes),
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default => false,
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};
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}
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/**
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* Verify that a type exists
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*
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* @param string $name
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*
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* @return bool
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*/
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public static function exists(string $name): bool
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{
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return in_array(
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$name,
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array_merge(
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self::$coreTypes,
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self::$activityTypes,
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self::$actorTypes,
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self::$objectTypes
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)
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);
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}
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}
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