turn 'OpenGraph' into a more general purpose HTTP meta facility for setting any meta header

Zotlabs/Web/HttpMeta.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Zotlabs\Web;
+
+
+class HttpMeta {
+
+	private $vars = null;
+	private $og = null;
+
+	function __construct() {
+
+		$this->vars = array();
+		$this->og = array();
+
+	}
+
+	function set($property,$value) {
+		if(strpos($property,'og:') === 0)
+			$this->og[$property] = $value;
+		else
+			$this->vars[$property] = $value;
+	}
+
+	function check_required() {
+		if(
+			($this->og) 
+			&& array_key_exists('og:title',$this->og) 
+			&& array_key_exists('og:type', $this->og) 
+			&& array_key_exists('og:image',$this->og) 
+			&& array_key_exists('og:url',  $this->og)
+		)
+			return true;
+		return false;
+	}
+
+	function get_field($field) {
+		if(strpos($field,'og:') === 0)
+			$arr = $this->og;
+		else
+			$arr = $this->vars;
+
+		if($arr && array_key_exists($field,$arr) && $arr[$field])
+			return $arr[$field];
+		return false;
+	}
+
+
+	function get() {
+		$o = '';
+		if($this->vars) {
+			foreach($this->vars as $k => $v) {
+				$o .= '<meta property="' . $k . '" content="' . urlencode($v) . '" />' . "\r\n" ;
+			}
+		}
+		if($this->check_required()) {
+			foreach($this->og as $k => $v) {
+				$o .= '<meta property="' . $k . '" content="' . urlencode($v) . '" />' . "\r\n" ;
+			}
+		}
+		if($o)
+			return "\r\n" . $o;
+		return $o;
+	}
+
+}

Zotlabs/Web/OpenGraph.php

@@ -1,50 +0,0 @@
-<?php
-
-namespace Zotlabs\Web;
-
-
-class OpenGraph {
-
-	private $vars = null;
-
-	function __construct() {
-
-		$this->vars = array();
-
-	}
-
-	function set($property,$value) {
-		$this->vars[$property] = $value;
-	}
-
-	function check_required() {
-		if(
-			($this->vars) 
-			&& array_key_exists('og:title',$this->vars) 
-			&& array_key_exists('og:type', $this->vars) 
-			&& array_key_exists('og:image',$this->vars) 
-			&& array_key_exists('og:url',  $this->vars)
-		)
-			return true;
-		return false;
-	}
-
-	function get_field($field) {
-		if($this->vars && array_key_exists($field,$this->vars) && $this->vars[$field])
-			return $this->vars[$field];
-		return false;
-	}
-
-
-	function get() {
-		if($this->check_required()) {
-			$o = "\r\n";
-			foreach($this->vars as $k => $v) {
-				$o .= '<meta property="' . $k . '" content="' . urlencode($v) . '" />' . "\r\n" ;
-			}
-			return $o;
-		}
-		return '';
-	}
-
-}

boot.php

@@ -753,7 +753,7 @@ class App {
 
 	private $baseurl;
 
-	private $OG;
+	private $meta;
 
 	/**
 	 * App constructor.
@@ -873,7 +873,7 @@ class App {
 
 		spl_autoload_register('ZotlabsAutoloader::loader');
 
-		$this->OG = new Zotlabs\Web\OpenGraph();
+		$this->meta= new Zotlabs\Web\HttpMeta();
 	}
 
 	function get_baseurl($ssl = false) {
@@ -1023,8 +1023,8 @@ class App {
 		if(! x($this->page,'title'))
 			$this->page['title'] = $this->config['system']['sitename'];
 
-		if(! $this->OG->get_field('og:title'))
+		if(! $this->meta->get_field('og:title'))
-			$this->OG->set('og:title',$this->page['title']);
+			$this->meta->set('og:title',$this->page['title']);
 
 		/* put the head template at the beginning of page['htmlhead']
 		 * since the code added by the modules frequently depends on it
@@ -1037,7 +1037,7 @@ class App {
 			'$baseurl' => $this->get_baseurl(),
 			'$local_channel' => local_channel(),
 			'$generator' => Zotlabs\Project\System::get_platform_name() . ((Zotlabs\Project\System::get_project_version()) ? ' ' . Zotlabs\Project\System::get_project_version() : ''),
-			'$metas' => $this->OG->get(),
+			'$metas' => $this->meta->get(),
 			'$update_interval' => $interval,
 			'$icon' => head_get_icon(),
 			'$head_css' => head_get_css(),