bug4452.patch
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	• bzimport
	Nov 21 2014, 8:59 PM

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bug4452.patch
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	Index: Hooks.php
	===================================================================
	--- Hooks.php (revision 7)
	+++ Hooks.php (working copy)
	@@ -128,4 +128,111 @@

	return true;
	}
	+
	+
	+/**
	+ * Similar to wfRunHooks(), but only calls one.
	+ * @param string $event The event to call.
	+ * @param string $which The hook on that event to call.
	+ */
	+function wfCallHook($event, $which, $args = null) {
	+
	+ global $wgHooks;
	+ $fname = 'wfCallHook';
	+
	+ if (!is_array($wgHooks)) {
	+ wfDebugDieBacktrace("Global hooks array is not an array!\n");
	+ return false;
	+ }
	+
	+ if (!array_key_exists($event, $wgHooks)) {
	+ return true;
	+ }
	+
	+ if (!is_array($wgHooks[$event])) {
	+ wfDebugDieBacktrace("Hooks array for event '$event' is not an array!\n");
	+ return false;
	+ }
	+
	+ if (isset($wgHooks[$event][$which]) && ($hook = $wgHooks[$event][$which])) {
	+
	+ $object = NULL;
	+ $method = NULL;
	+ $func = NULL;
	+ $data = NULL;
	+ $have_data = false;
	+
	+ /* $hook can be: a function, an object, an array of $function and $data,
	+ * an array of just a function, an array of object and method, or an
	+ * array of object, method, and data.
	+ */
	+
	+ if (is_array($hook)) {
	+ if (count($hook) < 1) {
	+ wfDebugDieBacktrace("Empty array in hooks for " . $event . "\n");
	+ } else if (is_object($hook[0])) {
	+ $object =& $wgHooks[$event][$index][0];
	+ if (count($hook) < 2) {
	+ $method = "on" . $event;
	+ } else {
	+ $method = $hook[1];
	+ if (count($hook) > 2) {
	+ $data = $hook[2];
	+ $have_data = true;
	+ }
	+ }
	+ } else if (is_string($hook[0])) {
	+ $func = $hook[0];
	+ if (count($hook) > 1) {
	+ $data = $hook[1];
	+ $have_data = true;
	+ }
	+ } else {
	+ var_dump( $wgHooks );
	+ wfDebugDieBacktrace("Unknown datatype in hooks for " . $event . "\n");
	+ }
	+ } else if (is_string($hook)) { # functions look like strings, too
	+ $func = $hook;
	+ } else if (is_object($hook)) {
	+ $object =& $wgHooks[$event][$index];
	+ $method = "on" . $event;
	+ } else {
	+ wfDebugDieBacktrace("Unknown datatype in hooks for " . $event . "\n");
	+ }
	+
	+ /* We put the first data element on, if needed. */
	+
	+ if ($have_data) {
	+ $hook_args = array_merge(array($data), $args);
	+ } else {
	+ $hook_args = $args;
	+ }
	+
	+
	+ if ( isset( $object ) ) {
	+ $func = get_class( $object ) . '::' . $method;
	+ }
	+
	+ /* Call the hook. */
	+ wfProfileIn( $func );
	+ if( isset( $object ) ) {
	+ $retval = call_user_func_array(array(&$object, $method), $hook_args);
	+ } else {
	+ $retval = call_user_func_array($func, $hook_args);
	+ }
	+ wfProfileOut( $func );
	+
	+ /* String return is an error; false return means stop processing. */
	+
	+ if (is_string($retval)) {
	+ global $wgOut;
	+ $wgOut->fatalError($retval);
	+ return false;
	+ } else if (!$retval) {
	+ return false;
	+ }
	+ }
	+
	+ return true;
	+}
	?>

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