Merge branch 'preempt-hooks' into 'dev'

Preempt hooks

See merge request hubzilla/core!1279

1 files changed, 19 insertions, 0 deletions

diff --git a/include/plugin.php b/include/plugin.php
index 9757be356..fdc62b3a7 100755
--- a/include/plugin.php
+++ b/include/plugin.php
@@ -458,6 +458,25 @@ function call_hooks($name, &$data = null) {
 
 	if (isset(App::$hooks[$name])) { 
 		foreach(App::$hooks[$name] as $hook) {
+
+			if ($name != 'permit_hook') { // avoid looping
+				$checkhook = [
+ 					'name'=>$name,
+ 					'hook'=>$hook,
+                                        'data'=>$data,
+						// Note: Since PHP uses COPY-ON-WRITE
+                                                // for variables, there is no cost to
+						// passing the $data structure (unless
+						// the permit_hook processors change the
+						// information it contains.
+ 					'permit'=>true
+ 					];
+ 				call_hooks('permit_hook',$checkhook);
+ 				if (!$checkhook['permit']) {
+ 					continue;
+ 				}
+				$data = $checkhook['data'];
+			}
 			$origfn = $hook[1];
 			if($hook[0])
 				@include_once($hook[0]);