1 files changed, 89 insertions, 0 deletions
diff --git a/engine/lib/cron.php b/engine/lib/cron.php
new file mode 100644
index 000000000..4f3d05b93
--- /dev/null
+++ b/engine/lib/cron.php
@@ -0,0 +1,89 @@
+<?php
+/**
+ * Elgg cron library.
+ *
+ * @package Elgg
+ * @subpackage Core
+ */
+
+/**
+ * Cron initialization
+ *
+ * @return void
+ * @access private
+ */
+function cron_init() {
+	// Register a pagehandler for cron
+	elgg_register_page_handler('cron', 'cron_page_handler');
+
+	// register a hook for Walled Garden public pages
+	elgg_register_plugin_hook_handler('public_pages', 'walled_garden', 'cron_public_pages');
+}
+
+/**
+ * Cron handler
+ *
+ * @param array $page Pages
+ *
+ * @return bool
+ * @throws CronException
+ * @access private
+ */
+function cron_page_handler($page) {
+	if (!isset($page[0])) {
+		forward();
+	}
+
+	$period = strtolower($page[0]);
+
+	$allowed_periods = array(
+		'minute', 'fiveminute', 'fifteenmin', 'halfhour', 'hourly',
+		'daily', 'weekly', 'monthly', 'yearly', 'reboot'
+	);
+
+	if (!in_array($period, $allowed_periods)) {
+		throw new CronException(elgg_echo('CronException:unknownperiod', array($period)));
+	}
+
+	// Get a list of parameters
+	$params = array();
+	$params['time'] = time();
+
+	// Data to return to
+	$old_stdout = "";
+	ob_start();
+
+	$old_stdout = elgg_trigger_plugin_hook('cron', $period, $params, $old_stdout);
+	$std_out = ob_get_clean();
+
+	echo $std_out . $old_stdout;
+	return true;
+}
+
+/**
+ * Register cron's pages as public in case we're in Walled Garden mode
+ *
+ * @param string $hook         public_pages
+ * @param string $type         system
+ * @param array  $return_value Array of pages to allow
+ * @param mixed  $params       Params
+ *
+ * @return array
+ * @access private
+ */
+function cron_public_pages($hook, $type, $return_value, $params) {
+	$return_value[] = 'cron/minute';
+	$return_value[] = 'cron/fiveminute';
+	$return_value[] = 'cron/fifteenmin';
+	$return_value[] = 'cron/halfhour';
+	$return_value[] = 'cron/hourly';
+	$return_value[] = 'cron/daily';
+	$return_value[] = 'cron/weekly';
+	$return_value[] = 'cron/monthly';
+	$return_value[] = 'cron/yearly';
+	$return_value[] = 'cron/reboot';
+
+	return $return_value;
+}
+
+elgg_register_event_handler('init', 'system', 'cron_init');