Add pre:adminroutes hook

Adds a hook which is executed after admin bodyparser but before any admin route.

admin/server/app/createDynamicRouter.js

@@ -26,6 +26,14 @@ module.exports = function createDynamicRouter (keystone) {
 		next();
 	});
 
+	// Pre adminroutes middleware
+	if (typeof keystone.get('pre:adminroutes') === 'function') {
+		keystone.get('pre:adminroutes')(router);
+	}
+	router.use(function (req, res, next) {
+		keystone.callHook('pre:adminroutes', req, res, next);
+	});
+
 	if (keystone.get('healthchecks')) {
 		router.use('/server-health', require('./createHealthchecksHandler')(keystone));
 	}

docs/api/Methods/middleware.md

@@ -15,7 +15,8 @@ name | call time
 `pre:bodyparser` |
 `pre:session` |
 `pre:admin` |
-`pre:routes` | Installs Express middleware which is called before each route is executed.
+`pre:adminroutes` | Installs Express middleware which is called before each admin route is executed.
+`pre:routes` | Installs Express middleware which is called before each non admin route is executed.
 `pre:render` | Called before a Keystone [view](/api/view) is rendered.
 `updates` |
 `signin` | Called before a user signs in to the Keystone admin UI and the user is returned a view.

index.js

@@ -22,7 +22,7 @@ var moduleRoot = (function (_rootPath) {
  * Keystone Class
  */
 var Keystone = function () {
-	grappling.mixin(this).allowHooks('pre:static', 'pre:bodyparser', 'pre:session', 'pre:logger', 'pre:admin', 'pre:routes', 'pre:render', 'updates', 'signin', 'signout');
+	grappling.mixin(this).allowHooks('pre:static', 'pre:bodyparser', 'pre:session', 'pre:logger', 'pre:admin', 'pre:adminroutes', 'pre:routes', 'pre:render', 'updates', 'signin', 'signout');
 	this.lists = {};
 	this.fieldTypes = {};
 	this.paths = {};