From 3cdf73acb6641827dda69599496384f33a8e0ffb Mon Sep 17 00:00:00 2001
From: ben <ben@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Mon, 23 Feb 2009 11:07:42 +0000
Subject: Introducing group_gatekeeper()

git-svn-id: https://code.elgg.org/elgg/trunk@2888 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/lib/group.php | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'engine/lib')

diff --git a/engine/lib/group.php b/engine/lib/group.php
index 588a60aac..cff387298 100644
--- a/engine/lib/group.php
+++ b/engine/lib/group.php
@@ -793,6 +793,36 @@
 		return get_entities_from_relationship('member', $user_guid, false);
 	}
 	
+	/**
+	 * Checks access to a group.
+	 *
+	 * @param boolean $forward If set to true (default), will forward the page; if set to false, will return true or false.
+	 * @return true|false If $forward is set to false.
+	 */
+	function group_gatekeeper($forward = true) {
+
+		$allowed = true;
+		$url = '';
+		
+		if ($group = page_owner_entity()) {
+			if ($group instanceof ElggGroup) {
+				$url = $group->getURL();
+				if (
+					((!isloggedin()) && (!$group->isPublicMembership())) ||
+					((!$group->isMember(get_loggedin_user()) && (!$group->isPublicMembership())))
+				) $allowed = false;
+			}
+		}
+		
+		if ($forward && $allowed == false) {
+			forward($url);
+			exit;
+		}
+		
+		return $allowed;
+		
+	}
+	
 	/**
 	 * Performs initialisation functions for groups
 	 *
-- 
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