From f15d96bebe754d9cb38b1e043a30521d9fbcd668 Mon Sep 17 00:00:00 2001
From: zotlabs <mike@macgirvin.com>
Date: Sun, 20 Aug 2017 19:40:37 -0700
Subject: add namespaces to activitystreams parser

---
 Zotlabs/Lib/ActivityStreams.php | 65 +++++++++++++++++++++++++++++++++--------
 1 file changed, 53 insertions(+), 12 deletions(-)

(limited to 'Zotlabs/Lib/ActivityStreams.php')

diff --git a/Zotlabs/Lib/ActivityStreams.php b/Zotlabs/Lib/ActivityStreams.php
index 2b610c7a4..3bbe3b190 100644
--- a/Zotlabs/Lib/ActivityStreams.php
+++ b/Zotlabs/Lib/ActivityStreams.php
@@ -5,12 +5,14 @@ namespace Zotlabs\Lib;
 class ActivityStreams {
 
 	public $data;
-	public $valid = false;
-	public $id    = '';
-	public $type  = '';
-	public $actor = null;
-	public $obj   = null;
-	public $tgt   = null;
+	public $valid  = false;
+	public $id     = '';
+	public $type   = '';
+	public $actor  = null;
+	public $obj    = null;
+	public $tgt    = null;
+	public $origin = null;
+	public $owner  = null;
 
 	function __construct($string) {
 
@@ -26,6 +28,7 @@ class ActivityStreams {
 			$this->obj    = $this->get_compound_property('object');
 			$this->tgt    = $this->get_compound_property('target');
 			$this->origin = $this->get_compound_property('origin');
+			$this->owner  = $this->get_compound_property('owner','','http://purl.org/zot/protocol');
 
 			if(($this->type === 'Note') && (! $this->obj)) {
 				$this->obj = $this->data;
@@ -38,9 +41,47 @@ class ActivityStreams {
 		return $this->valid;
 	}
 
-	function get_property_obj($property,$base = '') {
+	function get_namespace($base,$namespace) {
+
+		$key = null;
+
+		foreach( [ $this->data, $base ] as $b ) {
+			if(! $b)
+				continue;
+			if(array_key_exists('@context',$b)) {
+				if(is_array($b['@context'])) {
+					foreach($b['@context'] as $ns) {
+						if(is_array($ns)) {
+							foreach($ns as $k => $v) {
+								if($namespace === $v)
+									$key = $k;
+							}
+						}
+						else {
+							if($namespace === $ns) {
+								$key = '';
+							}
+						}
+					}
+				}
+				else {
+					if($namespace === $b['@context']) {
+						$key = '';
+					}
+				}
+			}
+		}
+		return $key;
+	}
+
+
+	function get_property_obj($property,$base = '',$namespace = 'https://www.w3.org/ns/activitystreams') {
+		$prefix = $this->get_namespace($base,$namespace);
+		if($prefix === null)
+			return null;	
 		$base = (($base) ? $base : $this->data);
-		return ((array_key_exists($property,$base)) ? $base[$property] : null);
+		$propname = (($prefix) ? $prefix . ':' : '') . $property;
+		return ((array_key_exists($propname,$base)) ? $base[$propname] : null);
 	}
 
 	function fetch_property($url) {
@@ -57,8 +98,8 @@ class ActivityStreams {
 		return null;
 	}
 
-	function get_compound_property($property,$base = '') {
-		$x = $this->get_property_obj($property,$base);
+	function get_compound_property($property,$base = '',$namespace = 'https://www.w3.org/ns/activitystreams') {
+		$x = $this->get_property_obj($property,$base,$namespace);
 		if($this->is_url($x)) {
 			$x = $this->fetch_property($x); 	
 		}
@@ -72,10 +113,10 @@ class ActivityStreams {
 		return false;
 	}
 
-	function get_primary_type($base = '') {
+	function get_primary_type($base = '',$namespace = 'https://www.w3.org/ns/activitystreams') {
 		if(! $base)
 			$base = $this->data;
-		$x = $this->get_property_obj('type',$base);
+		$x = $this->get_property_obj('type',$base,$namespace);
 		if(is_array($x)) {
 			foreach($x as $y) {
 				if(strpos($y,':') === false) {
-- 
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