+
+ /**
+ * Page include parse event.
+ * Runs when a page include tag is being parsed, typically when page content is being processed for viewing.
+ * Provides the "include tag" reference string, the default BookStack replacement content for the tag,
+ * the current page being processed, and the page that's being referenced by the include tag.
+ * The referenced page may be null where the page does not exist or where permissions prevent visibility.
+ * If the listener returns a non-null value, that will be used as the replacement HTML content instead.
+ *
+ * @param string $tagReference
+ * @param string $replacementHTML
+ * @param Page $currentPage
+ * @param ?Page $referencedPage
+ */
+ const PAGE_INCLUDE_PARSE = 'page_include_parse';
+
+ /**
+ * Web before middleware action.
+ * Runs before the request is handled but after all other middleware apart from those
+ * that depend on the current session user (Localization for example).
+ * Provides the original request to use.
+ * Return values, if provided, will be used as a new response to use.
+ *
+ * @param \Illuminate\Http\Request $request
+ * @returns \Illuminate\Http\Response|null
+ */
+ const WEB_MIDDLEWARE_BEFORE = 'web_middleware_before';
+
+ /**
+ * Web after middleware action.
+ * Runs after the request is handled but before the response is sent.
+ * Provides both the original request and the currently resolved response.
+ * Return values, if provided, will be used as a new response to use.
+ *
+ * @param \Illuminate\Http\Request $request
+ * @param \Illuminate\Http\Response|\Symfony\Component\HttpFoundation\BinaryFileResponse $response
+ * @returns \Illuminate\Http\Response|null
+ */
+ const WEB_MIDDLEWARE_AFTER = 'web_middleware_after';
+
+ /**
+ * Webhook call before event.
+ * Runs before a webhook endpoint is called. Allows for customization
+ * of the data format & content within the webhook POST request.
+ * Provides the original event name as a string (see \BookStack\Actions\ActivityType)
+ * along with the webhook instance along with the event detail which may be a
+ * "Loggable" model type or a string.
+ * If the listener returns a non-null value, that will be used as the POST data instead
+ * of the system default.
+ *
+ * @param string $event
+ * @param \BookStack\Actions\Webhook $webhook
+ * @param string|\BookStack\Interfaces\Loggable $detail
+ * @param \BookStack\Auth\User $initiator
+ * @param int $initiatedTime
+ */
+ const WEBHOOK_CALL_BEFORE = 'webhook_call_before';