86 lines
1.7 KiB
PHP
86 lines
1.7 KiB
PHP
<?php
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namespace Zotlabs\Lib;
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class ActivityStreams2 {
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public $data;
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public $valid = false;
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public $id = '';
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public $type = '';
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public $actor = null;
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public $obj = null;
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public $tgt = null;
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function __construct($string) {
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$this->data = json_decode($string,true);
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if($this->data) {
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$this->valid = true;
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}
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if($this->is_valid()) {
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$this->id = $this->get_property_obj('id');
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$this->type = $this->get_primary_type();
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$this->actor = $this->get_compound_property('actor');
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$this->obj = $this->get_compound_property('object');
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$this->tgt = $this->get_compound_property('target');
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}
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}
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function is_valid() {
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return $this->valid;
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}
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function get_property_obj($property,$base = '') {
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if(! $base) {
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$base = $this->data;
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}
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return $base[$property];
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}
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function fetch_property($url) {
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$redirects = 0;
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$x = z_fetch_url($url,true,$redirects,
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['headers' => [ 'Accept: application/ld+json; profile="https://www.w3.org/ns/activitystreams"']]);
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if($x['success'])
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return json_decode($x['body'],true);
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return null;
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}
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function get_compound_property($property,$base = '') {
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$x = $this->get_property_obj($property,$base);
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if($this->is_url($x)) {
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$x = $this->fetch_property($x);
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}
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return $x;
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}
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function is_url($url) {
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if(($url) && (! is_array($url)) && (strpos($url,'http') === 0)) {
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return true;
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}
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return false;
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}
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function get_primary_type($base = '') {
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if(! $base)
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$base = $this->data;
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$x = $this->get_property_obj('type',$base);
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if(is_array($x)) {
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foreach($x as $y) {
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if(strpos($y,':') === false) {
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return $y;
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}
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}
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}
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return $x;
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}
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function debug() {
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$x = var_export($this,true);
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return $x;
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}
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} |