From ed00d1b2e3895f5feb0767d1b002f7be08797379 Mon Sep 17 00:00:00 2001
From: "M. Dent" <dentm42@gmail.com>
Date: Sat, 22 Sep 2018 10:44:51 +0200
Subject: Page meta properties

---
 Zotlabs/Web/HttpMeta.php | 15 +++++++++++++--
 boot.php                 |  8 ++++++--
 doc/hook/page_meta.bb    | 13 +++++++++++++
 doc/hooklist.bb          |  3 +++
 4 files changed, 35 insertions(+), 4 deletions(-)
 create mode 100644 doc/hook/page_meta.bb

diff --git a/Zotlabs/Web/HttpMeta.php b/Zotlabs/Web/HttpMeta.php
index 469a9ed8b..ceaa82162 100644
--- a/Zotlabs/Web/HttpMeta.php
+++ b/Zotlabs/Web/HttpMeta.php
@@ -54,8 +54,19 @@ class HttpMeta {
 			}
 		}
 		if($this->check_required()) {
+			$arrayproperties = [ 'og:image' ];
 			foreach($this->og as $k => $v) {
-				$o .= '<meta property="' . $k . '" content="' . urlencode($v) . '" />' . "\r\n" ;
+				if (in_array($k,$arrayproperties)) {
+					if (is_array($v)) {
+						foreach ($v as $v2) {
+							$o .= '<meta property="' . $k . '" content="' . $v2 . '" />' . "\r\n" ;
+						}
+					} else {
+						$o .= '<meta property="' . $k . '" content="' . $v . '" />' . "\r\n" ;
+					}
+				} else {
+					$o .= '<meta property="' . $k . '" content="' . $v . '" />' . "\r\n" ;
+				}
 			}
 		}
 		if($o)
@@ -63,4 +74,4 @@ class HttpMeta {
 		return $o;
 	}
 
-}
\ No newline at end of file
+}
diff --git a/boot.php b/boot.php
index e8c1355e8..3d583e8c5 100755
--- a/boot.php
+++ b/boot.php
@@ -1119,8 +1119,12 @@ class App {
 		if(! x(self::$page,'title'))
 			self::$page['title'] = self::$config['system']['sitename'];
 
-		if(! self::$meta->get_field('og:title'))
-			self::$meta->set('og:title',self::$page['title']);
+		$pagemeta = [ 'og:title' => self::$page['title'] ];
+
+		call_hooks('page_meta',$pagemeta);
+		foreach ($pagemeta as $metaproperty => $metavalue) {
+			self::$meta->set($metaproperty,$metavalue);
+		}
 
 		self::$meta->set('generator', Zotlabs\Lib\System::get_platform_name());
 
diff --git a/doc/hook/page_meta.bb b/doc/hook/page_meta.bb
new file mode 100644
index 000000000..30a8f9440
--- /dev/null
+++ b/doc/hook/page_meta.bb
@@ -0,0 +1,13 @@
+[h2]page_meta[/h2]
+
+Called before generating the page header.
+
+[code]
+               $pagemeta = [ 'og:title' => self::$page['title'] ];
+
+                call_hooks('page_meta',$pagemeta);
+                foreach ($pagemeta as $metaproperty => $metavalue) {
+                        self::$meta->set($metaproperty,$metavalue);
+                }
+
+[/code]
diff --git a/doc/hooklist.bb b/doc/hooklist.bb
index 1b48df6e6..d7fe633ba 100644
--- a/doc/hooklist.bb
+++ b/doc/hooklist.bb
@@ -451,6 +451,9 @@ Hooks allow plugins/addons to "hook into" the code at many points and alter the
 [zrl=[baseurl]/help/hook/page_header]page_header[/zrl]
 	Called when generating the navigation bar
 
+[zrl=[baseurl]/help/hook/page_header]page_meta[/zrl]
+	Called when generating the meta data in the page header.
+
 [zrl=[baseurl]/help/hook/parse_atom]parse_atom[/zrl]
 	Called when parsing an atom/RSS feed item
 
-- 
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