From 3048db0f3f1ade31d6f3a2cdd3268e978a3e3cf3 Mon Sep 17 00:00:00 2001 From: Steve Clay Date: Mon, 17 Sep 2012 17:41:15 -0400 Subject: Fixes #4861: allow lazy-loading for static method callbacks, allow more callables --- engine/classes/ElggPAM.php | 8 +++++++- engine/lib/elgglib.php | 16 +++++++++------- engine/lib/entities.php | 2 +- engine/lib/extender.php | 6 +++--- engine/lib/notification.php | 7 ++++--- engine/lib/pagehandler.php | 9 ++++++--- engine/lib/pam.php | 7 +++++-- engine/lib/relationships.php | 2 +- engine/lib/views.php | 2 +- engine/lib/web_services.php | 9 ++++----- 10 files changed, 41 insertions(+), 27 deletions(-) diff --git a/engine/classes/ElggPAM.php b/engine/classes/ElggPAM.php index 0681a909b..f07095fc1 100644 --- a/engine/classes/ElggPAM.php +++ b/engine/classes/ElggPAM.php @@ -53,11 +53,17 @@ class ElggPAM { foreach ($_PAM_HANDLERS[$this->policy] as $k => $v) { $handler = $v->handler; + if (!is_callable($handler)) { + continue; + } + /* @var callable $handler */ + $importance = $v->importance; try { // Execute the handler - $result = $handler($credentials); + // @todo don't assume $handler is a global function + $result = call_user_func($handler, $credentials); if ($result) { $authenticated = true; } elseif ($result === false) { diff --git a/engine/lib/elgglib.php b/engine/lib/elgglib.php index 26c1cccfd..85610f0c2 100644 --- a/engine/lib/elgglib.php +++ b/engine/lib/elgglib.php @@ -684,7 +684,7 @@ function elgg_register_event_handler($event, $object_type, $callback, $priority $CONFIG->events[$event][$object_type] = array(); } - if (!is_callable($callback)) { + if (!is_callable($callback, true)) { return FALSE; } @@ -770,7 +770,7 @@ function elgg_trigger_event($event, $object_type, $object = null) { foreach ($events as $callback_list) { if (is_array($callback_list)) { foreach ($callback_list as $callback) { - if (call_user_func_array($callback, $args) === FALSE) { + if (is_callable($callback) && (call_user_func_array($callback, $args) === FALSE)) { return FALSE; } } @@ -863,7 +863,7 @@ function elgg_register_plugin_hook_handler($hook, $type, $callback, $priority = $CONFIG->hooks[$hook][$type] = array(); } - if (!is_callable($callback)) { + if (!is_callable($callback, true)) { return FALSE; } @@ -970,10 +970,12 @@ function elgg_trigger_plugin_hook($hook, $type, $params = null, $returnvalue = n foreach ($hooks as $callback_list) { if (is_array($callback_list)) { foreach ($callback_list as $hookcallback) { - $args = array($hook, $type, $returnvalue, $params); - $temp_return_value = call_user_func_array($hookcallback, $args); - if (!is_null($temp_return_value)) { - $returnvalue = $temp_return_value; + if (is_callable($hookcallback)) { + $args = array($hook, $type, $returnvalue, $params); + $temp_return_value = call_user_func_array($hookcallback, $args); + if (!is_null($temp_return_value)) { + $returnvalue = $temp_return_value; + } } } } diff --git a/engine/lib/entities.php b/engine/lib/entities.php index a50567d9f..5a5906b1f 100644 --- a/engine/lib/entities.php +++ b/engine/lib/entities.php @@ -2011,7 +2011,7 @@ function get_entity_url($entity_guid) { function elgg_register_entity_url_handler($entity_type, $entity_subtype, $function_name) { global $CONFIG; - if (!is_callable($function_name)) { + if (!is_callable($function_name, true)) { return false; } diff --git a/engine/lib/extender.php b/engine/lib/extender.php index 43421342c..636b711ea 100644 --- a/engine/lib/extender.php +++ b/engine/lib/extender.php @@ -136,7 +136,7 @@ function can_edit_extender($extender_id, $type, $user_guid = 0) { $functionname = "elgg_get_{$type}_from_id"; if (is_callable($functionname)) { - $extender = $functionname($extender_id); + $extender = call_user_func($functionname, $extender_id); } else { return false; } @@ -175,7 +175,7 @@ function elgg_register_extender_url_handler($extender_type, $extender_name, $fun global $CONFIG; - if (!is_callable($function_name)) { + if (!is_callable($function_name, true)) { return false; } @@ -228,7 +228,7 @@ function get_extender_url(ElggExtender $extender) { if ($url == "") { $nameid = $extender->id; if ($type == 'volatile') { - $nameid == $extender->name; + $nameid = $extender->name; } $url = "export/$view/$guid/$type/$nameid/"; } diff --git a/engine/lib/notification.php b/engine/lib/notification.php index 18faff27f..9e3c075a8 100644 --- a/engine/lib/notification.php +++ b/engine/lib/notification.php @@ -38,7 +38,7 @@ $NOTIFICATION_HANDLERS = array(); function register_notification_handler($method, $handler, $params = NULL) { global $NOTIFICATION_HANDLERS; - if (is_callable($handler)) { + if (is_callable($handler, true)) { $NOTIFICATION_HANDLERS[$method] = new stdClass; $NOTIFICATION_HANDLERS[$method]->handler = $handler; @@ -131,8 +131,9 @@ function notify_user($to, $from, $subject, $message, array $params = NULL, $meth // Extract method details from list $details = $NOTIFICATION_HANDLERS[$method]; $handler = $details->handler; + /* @var callable $handler */ - if ((!$NOTIFICATION_HANDLERS[$method]) || (!$handler)) { + if ((!$NOTIFICATION_HANDLERS[$method]) || (!$handler) || (!is_callable($handler))) { error_log(elgg_echo('NotificationException:NoHandlerFound', array($method))); } @@ -140,7 +141,7 @@ function notify_user($to, $from, $subject, $message, array $params = NULL, $meth // Trigger handler and retrieve result. try { - $result[$guid][$method] = $handler( + $result[$guid][$method] = call_user_func($handler, $from ? get_entity($from) : NULL, // From entity get_entity($guid), // To entity $subject, // The subject diff --git a/engine/lib/pagehandler.php b/engine/lib/pagehandler.php index ba7518a77..a53506812 100644 --- a/engine/lib/pagehandler.php +++ b/engine/lib/pagehandler.php @@ -45,7 +45,10 @@ function page_handler($handler, $page) { $page = $request['segments']; $result = false; - if (isset($CONFIG->pagehandler) && !empty($handler) && isset($CONFIG->pagehandler[$handler])) { + if (isset($CONFIG->pagehandler) + && !empty($handler) + && isset($CONFIG->pagehandler[$handler]) + && is_callable($CONFIG->pagehandler[$handler])) { $function = $CONFIG->pagehandler[$handler]; $result = call_user_func($function, $page, $handler); } @@ -76,14 +79,14 @@ function page_handler($handler, $page) { * @param string $handler The page type to handle * @param string $function Your function name * - * @return true|false Depending on success + * @return bool Depending on success */ function elgg_register_page_handler($handler, $function) { global $CONFIG; if (!isset($CONFIG->pagehandler)) { $CONFIG->pagehandler = array(); } - if (is_callable($function)) { + if (is_callable($function, true)) { $CONFIG->pagehandler[$handler] = $function; return true; } diff --git a/engine/lib/pam.php b/engine/lib/pam.php index 4f9f44278..1c9c3bfe1 100644 --- a/engine/lib/pam.php +++ b/engine/lib/pam.php @@ -30,7 +30,9 @@ $_PAM_HANDLERS = array(); * failure, return false or throw an exception. Returning nothing indicates that * the handler wants to be skipped. * - * @param string $handler The handler function in the format + * Note, $handler must be string callback (not an array/Closure). + * + * @param string $handler Callable global handler function in the format () * pam_handler($credentials = NULL); * @param string $importance The importance - "sufficient" (default) or "required" * @param string $policy The policy type, default is "user" @@ -45,7 +47,8 @@ function register_pam_handler($handler, $importance = "sufficient", $policy = "u $_PAM_HANDLERS[$policy] = array(); } - if (is_callable($handler)) { + // @todo remove requirement that $handle be a global function + if (is_string($handler) && is_callable($handler, true)) { $_PAM_HANDLERS[$policy][$handler] = new stdClass; $_PAM_HANDLERS[$policy][$handler]->handler = $handler; diff --git a/engine/lib/relationships.php b/engine/lib/relationships.php index 09d541e22..01654b1ce 100644 --- a/engine/lib/relationships.php +++ b/engine/lib/relationships.php @@ -416,7 +416,7 @@ function elgg_list_entities_from_relationship_count($options) { function elgg_register_relationship_url_handler($relationship_type, $function_name) { global $CONFIG; - if (!is_callable($function_name)) { + if (!is_callable($function_name, true)) { return false; } diff --git a/engine/lib/views.php b/engine/lib/views.php index 6135026a7..e43c29cb2 100644 --- a/engine/lib/views.php +++ b/engine/lib/views.php @@ -1403,7 +1403,7 @@ function elgg_view_access_collections($owner_guid) { */ function set_template_handler($function_name) { global $CONFIG; - if (!empty($function_name) && is_callable($function_name)) { + if (is_callable($function_name)) { $CONFIG->template_handler = $function_name; return true; } diff --git a/engine/lib/web_services.php b/engine/lib/web_services.php index da3ed76a9..39fb0dc44 100644 --- a/engine/lib/web_services.php +++ b/engine/lib/web_services.php @@ -232,6 +232,7 @@ function execute_method($method) { $function = $API_METHODS[$method]["function"]; $serialised_parameters = trim($serialised_parameters, ", "); + // @todo document why we cannot use call_user_func_array here $result = eval("return $function($serialised_parameters);"); // Sanity check result @@ -1278,11 +1279,9 @@ function service_handler($handler, $request) { // no handlers set or bad url header("HTTP/1.0 404 Not Found"); exit; - } else if (isset($CONFIG->servicehandler[$handler]) - && is_callable($CONFIG->servicehandler[$handler])) { - + } else if (isset($CONFIG->servicehandler[$handler]) && is_callable($CONFIG->servicehandler[$handler])) { $function = $CONFIG->servicehandler[$handler]; - $function($request, $handler); + call_user_func($function, $request, $handler); } else { // no handler for this web service header("HTTP/1.0 404 Not Found"); @@ -1304,7 +1303,7 @@ function register_service_handler($handler, $function) { if (!isset($CONFIG->servicehandler)) { $CONFIG->servicehandler = array(); } - if (is_callable($function)) { + if (is_callable($function, true)) { $CONFIG->servicehandler[$handler] = $function; return true; } -- cgit v1.2.3